KR102742798B1 - Manufacturing method and mold for cosmetic ball container - Google Patents

Abstract

The present invention relates to a method for manufacturing a cosmetic ball container and a manufacturing mold, which can have a perfect spherical shape without forming a separate injection port for blowing by compressing and molding a parison with a pair of manufacturing molds in which a bottle-in-bottle molding space including a plurality of spherical molding spaces is formed.

Description

Manufacturing method and mold for cosmetic ball container {Manufacturing method and mold for cosmetic ball container}

The present invention relates to a method for manufacturing a cosmetic ball container and a manufacturing mold, and more specifically, to a method for manufacturing a cosmetic ball container and a manufacturing mold, which are formed by compressing a parison with a pair of manufacturing molds in which a bottle-in-bottle molding space including a plurality of spherical molding spaces is formed, thereby enabling a cosmetic ball container to have a perfect spherical shape without forming a separate injection port for blowing.

Existing soft capsule cosmetics use natural materials such as gelatin, vegetable carrageenan, and agar, and are good for molding and processing at low temperatures. However, soft capsule cosmetics have the characteristic of being vulnerable to moisture due to the nature of the material. If cosmetics containing moisture are made into soft capsules, they react with moisture and dissolve. In addition, soft capsules harden over time as the moisture in the soft capsule evaporates in the air.

Most basic cosmetics, excluding color cosmetics such as skin products, lotions, and creams, contain more than 50% moisture, so these types of cosmetics cannot be contained in soft capsules such as gelatin, vegetable carrageenan, or agar, and most must have an oil content of at least 90%.

For this reason, soft capsule cosmetics such as gelatin, vegetable carrageenan, and agar have many restrictions on moisture content, making it difficult to make various types of cosmetics. In addition, soft capsules are sensitive to moisture and temperature in the air, so they must be stored separately in a sealed container.

The container of a cosmetic product has the function of safely storing the cosmetic product from the internal and external environment. The container should not be dissolved by the cosmetic product or the cosmetic product should not penetrate into the container, and the container should not be deformed by the contents over time or the components of the container should not be dissolved and mixed with the contents.

However, since most basic cosmetics contain much more water than oil, the cosmetic container must prevent moisture from escaping from the container and must not be dissolved by moisture or oil. In addition, the container itself must not be deformed during the cosmetic shelf life due to external moisture or temperature.

The soft capsules that are widely used for disposable purposes are made of materials such as gelatin or carrageenan, and have the characteristic of dissolving in water. Therefore, they have the limitation that they can only accommodate oil substances. Therefore, they are not suitable for use as containers for general cosmetics.

In addition, when using cosmetics, the container lid is opened and closed, so not only can cosmetic ingredients such as vitamins be destroyed by oxidation when they combine with oxygen in the air, but there is also a risk of contamination when opening and closing the cosmetics because fungi and bacteria exist in the air that cannot be seen but affect the storage condition of the cosmetics contents.

To solve these problems, a cosmetic container that uses plastic materials to make a disposable sealed spherical structure so that the capsule does not become deformed or dissolved by the contents even when cosmetics with a high moisture content are stored for more than a year is safely preserved, and by putting an amount suitable for single use by adults into a spherical ball-shaped capsule and maintaining a sealed state until use, it prevents contamination by harmful substances in the air and oxidation at the same time is needed.

However, specific research has not been conducted on the appropriate method for manufacturing a spherical cosmetic ball container. In order to solve this problem, a "manufacturing device for a container filled with contents" is published in Korean Patent Publication No. 10-0231163 (published on November 15, 1999), which relates to a manufacturing device for a container filled with contents, characterized by including a separate molding die having an injection port formed at the top and a neck formed at the bottom so that a resin kneaded and mixed in an extruder is injected in a tube shape, a blow pin for injecting air into the resin injection port to mold the resin into a container in a shape of the molding die, an injection pin installed inside the blow pin so that the contents can be injected into the molded container, and a sealing mold installed on the top of the molding die to seal the injection port of the container.

However, since the "device for manufacturing a container filled with contents" according to the prior art is manufactured through blow molding, an injection port is inevitably formed, and since the ball containers must be blown one by one, the production speed is slow, and since a separate sealing mold is required to seal the injection port of the container, it is not suitable for mass production of products, and even if the injection port is sealed, there are problems such as the cosmetic container being damaged by the injection port itself separating from the relevant area, or a gap being formed, contaminating the contents.

Korean Patent Publication No. 10-0231163 (published on November 15, 1999). "Manufacturing device for a container filled with contents"

In order to solve the above problems, the present invention provides a method for manufacturing a cosmetic ball container and a manufacturing mold, which can have a perfect spherical shape without forming a separate injection port for blowing by compressing and molding a parison with a pair of manufacturing molds in which a bottle-in-bottle molding space including a plurality of spherical molding spaces is formed.

In order to achieve the above-mentioned purpose, the present invention provides a method for manufacturing a cosmetic ball container, comprising: a parison lowering step (S10) of forming and lowering a parison; a molding step (S20) of blowing the parison while closing a pair of manufacturing molds including a bottle-in-bottle molding space to form a bottle-in-bottle molded product; and a molded product obtaining step (S30) of opening the manufacturing molds to obtain a bottle-in-bottle molded product and obtaining a ball container.

At this time, the parison in the parison lowering step (S10) is characterized by having multiple layers.

At this time, it is characterized in that a plurality of spherical molding spaces are formed in the bottle-in-bottle molding space of the manufacturing mold in the molding step (S20).

At this time, it is characterized in that a spherical molding auxiliary space is formed between the spherical molding spaces of the manufacturing mold in the molding step (S20).

At this time, it is characterized in that a spherical molding outer auxiliary space is formed on both sides of the spherical molding space of the manufacturing mold in the molding step (S20).

At this time, the manufacturing mold in the molding step (S20) is characterized by being a mass manufacturing mold in which multiple bottle-in-bottle molding spaces are formed.

In addition, the present invention provides a manufacturing mold for a cosmetic ball container, characterized by including a pair of mold bases facing each other and connected by a guide pin; a bottle-in-bottle molding space formed on the facing surfaces of the pair of mold bases; and a plurality of spherical molding spaces formed in the bottle-in-bottle molding spaces.

At this time, the bottle-in-bottle molding space is characterized in that a spherical molding inter-auxiliary space is formed between the spherical molding spaces.

At this time, it is characterized in that a spherical molding outer auxiliary space is formed on both sides of the spherical molding space of the bottle-in-bottle molding space.

At this time, the mold base is characterized by being a mass-manufacturing mold in which a plurality of bottle-in-bottle molding spaces are formed.

In addition, the present invention provides a cosmetic ball container manufactured by the above manufacturing method, characterized in that it is formed in a perfectly spherical shape without forming an injection port.

The manufacturing method and manufacturing mold of a cosmetic ball container according to the present invention can provide a cosmetic ball container having a perfect spherical shape without forming a separate injection port for blowing by compressing and molding a lowered parison with a pair of manufacturing molds in which a bottle-in-bottle molding space including a plurality of spherical molding spaces is formed.

In addition, the manufacturing method and manufacturing mold of a cosmetic ball container according to the present invention enable mass production of cosmetic ball containers by using a plurality of spherical molding spaces.

In addition, the manufacturing method and manufacturing mold of the cosmetic ball container according to the present invention use a manufacturing mold having a bottle-in-bottle molding space provided with a spherical molding auxiliary space and a spherical molding outer auxiliary space, thereby controlling the cosmetic ball container to form a perfect spherical shape even in mass production.

Figure 1 is a perspective view of a mold for manufacturing a cosmetic ball container according to an embodiment of the present invention.
Figure 2 is a perspective view of a cosmetic ball container manufacturing mold in an open state according to an embodiment of the present invention.
Figure 3 is a perspective view of a cosmetic ball container manufacturing mold according to an embodiment of the present invention as viewed from the pressing surface.
Fig. 4 is a cross-sectional view taken along line B-B' of Fig. 1.
Figure 5 is a cross-sectional view taken along line A-A' of Figure 2.
Figure 6 is an exemplary diagram showing a method for manufacturing a cosmetic ball container according to an embodiment of the present invention.
Figure 7 is a photograph of a bottle-in-bottle molded product (BiB) according to an embodiment of the present invention.
Figure 8 is an enlarged photograph of a ball container (B) of a bottle-in-bottle molded product (BiB) according to an embodiment of the present invention.
Figure 9 is a cross-sectional view of a cosmetic ball container according to the first embodiment of the present invention.
Fig. 10 is a cross-sectional view of a cosmetic ball container according to a second embodiment of the present invention.
FIG. 11 is a perspective view of a mass manufacturing mold for cosmetic ball containers according to another embodiment of the present invention.
FIG. 12 is a perspective view of an opened mold for mass manufacturing a cosmetic ball container according to another embodiment of the present invention.
FIG. 13 is a perspective view of a mass production mold for cosmetic ball containers according to another embodiment of the present invention, viewed from the pressing surface.
Fig. 14 is a cross-sectional view taken along line B-B' of Fig. 10.
Fig. 15 is a cross-sectional view taken along line A-A' of Fig. 10.

The following detailed description of the present invention is made with reference to the accompanying drawings, which are exemplary of embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention, while different from each other, are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention. Furthermore, it should be understood that the positions or arrangements of individual components within each described embodiment may be changed without departing from the spirit and scope of the present invention.

Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope equivalents to which such claims are entitled, if properly described. Like reference numerals in the drawings designate the same or similar features throughout the several aspects.

The terms used in the present invention are selected from the most widely used general terms possible while considering the functions of the present invention, but they may vary depending on the intention of engineers working in the field, precedents, the emergence of new technologies, etc. In addition, in certain cases, there are terms arbitrarily selected by the applicant, and in this case, the meanings thereof will be described in detail in the description of the relevant invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the overall contents of the present invention, rather than simply the names of the terms.

When it is said that a part of the present invention “includes” a certain component, this does not exclude other components, but rather may include other components, unless otherwise specifically stated.

First, with reference to the attached drawings, a mold for manufacturing a cosmetic ball container according to the present invention will be described in detail.

FIG. 1 is a perspective view of a mold for manufacturing a cosmetic ball container according to an embodiment of the present invention, FIG. 2 is a perspective view of a mold for manufacturing a cosmetic ball container according to an embodiment of the present invention in an opened state, FIG. 3 is a perspective view of a mold for manufacturing a cosmetic ball container according to an embodiment of the present invention as viewed from a pressing surface, FIG. 4 is a cross-sectional view taken along the line B-B' of FIG. 1, and FIG. 5 is a cross-sectional view taken along the line A-A' of FIG. 2.

A manufacturing mold for a cosmetic ball container according to the present invention comprises a pair of mold bases (100, 100') facing each other and connected by a guide pin (P); a bottle-in-bottle molding space (S) formed on the facing surfaces of the pair of mold bases (100, 100'); and a plurality of spherical molding spaces (Sn) formed in the bottle-in-bottle molding spaces (S).

The above mold bases (100) are formed as a pair corresponding to each other as shown in FIGS. 1 and 2, and are formed facing each other while being connected by a guide pin (P). These may be referred to as one mold base (100) and the other mold base (100'), and they may have corresponding shapes. The configurations of the same symbols of the one mold base (100) and the other mold base (100') are indicated by ('), and have the same purpose and effect.

The surface facing one side of the mold base (100) and the other side of the mold base (100') is referred to as a mold base pressing surface (100A). In addition, the surface facing the upper part of one side of the mold base (100) and the other side of the mold base (100') is referred to as a mold base upper surface (100B).

The above mold base (100) may include a mold base first body (110), a mold base second body (120), a mold base third body (130), and a mold base fourth body (140), as shown in FIGS. 3 to 5.

Meanwhile, a guide pin (P) may be positioned on the mold base (100) to connect the mold bases (100). More specifically, a guide pin (P) may be positioned on the mold base second body (120) and the mold base third body (130). A pair of mold bases (100, 100') may reciprocally move to come into contact with each other and then separate from each other by the guide pin (P). The guide pin (P) may be fixed to one mold base among one mold base (100) or the other mold base (100'). Meanwhile, a guide bush (Gb) may be formed on the outside of the guide pin (P) to facilitate smooth movement of the mold base (100) by the guide pin (P).

Meanwhile, a stop bolt (bt) may be formed in the mold base (100). More specifically, the stop bolt (bt) may be formed in the mold base second body (120) and the mold base third body (130). The stop bolt (bt) may be controlled to be introduced or withdrawn into the mold base (100), and may adjust the distance when the one mold base (100) and the other mold base (100') are closed, and may determine the degree to which the molded product is pressed. This may affect the separation of the ball container (B) from the bottle molded product (BiB), which is a bottle that has been molded. By making the distance between one side mold base (100) and the other side mold base (100') relatively long when closed through the stop bolt (bt), the ball container (B) is prevented from being easily separated from the bottle-in-bottle molded product (BiB), and by making the distance between one side mold base (100) and the other side mold base (100') relatively narrow when closed through the stop bolt (bt), the cosmetic ball container (B) can be separated from the bottle-in-bottle molded product (BiB) by tapping it with a finger. By adjusting the stop bolt (bt), the degree to which the cosmetic ball container (B) is separated from the bottle-in-bottle molded product (BiB) can be freely adjusted according to the choice of a typical practitioner.

Meanwhile, the mold base third body (130) and the mold base fourth body (140) are not in perfect contact and may be spaced apart by a certain distance. Accordingly, a spaced gap may be formed between the mold base third body (130) and the mold base fourth body (140).

On the opposing surfaces of the above pair of mold bases (100), more specifically, on the mold base pressing surface (100A) of the mold base (100), a bottle-in-bottle molding space (S) is formed as shown in FIGS. 3 to 5.

The above bottle-in-bottle molding space (S) refers to a space in which a plurality of ball containers (B) are formed in a disconnected manner within an entire container in a bottle-in-bottle manner. The present invention forms a plurality of ball containers (B) in a disconnected manner within an entire container through a bottle-in-bottle molding method, thereby manufacturing a ball container (B) without an injection port.

However, simply pressing a pair of mold bases (100) does not produce a perfectly spherical container, and in order to realize a perfect spherical shape, a spherical molding space (Sn) and separate components to assist it are required. When the cosmetic ball container (B) has a perfect spherical shape, the balance of external force received by the cosmetic ball container (B) becomes constant, so that it can better withstand external impact and its preservability is improved. In addition, even when an injection port is not formed in the cosmetic ball container (B), it can better withstand external impact and has excellent durability.

To implement this, a plurality of spherical molding spaces (Sn) are formed at a predetermined interval in the bottle-in-bottle molding space (S). The spherical molding spaces (Sn) are positioned in the bottle-in-bottle molding space (S) in plurality, and as a more specific example, eight spherical molding spaces (Sn) may be formed at a predetermined interval in the bottle-in-bottle molding space (S). In one mold base (100), the spherical molding spaces (Sn) have a hemispherical shape dug to a predetermined depth in the mold base pressing surface (100A) of the mold base (100). The edges of the spherical molding spaces (Sn) should be in contact with each other when a pair of mold bases (100) meet. Therefore, the edges of the spherical molding spaces (Sn) protrude to a level corresponding to the mold base pressing surface (100A) of the mold base (100).

Meanwhile, outside the boundary of the spherical molding space (Sn), a rounded inclined surface may be formed along the boundary. The rounded inclined surface formed outside the boundary of the spherical molding space (Sn) may have an inclination angle of approximately 30 to 60° along the boundary of the spherical molding space (Sn). The rounded inclined surface formed outside the boundary of the spherical molding space (Sn) is dug so as to face the inside of the mold base (100).

In the above bottle-in-bottle molding space (S), a spherical molding auxiliary space (Sb) is formed between the spherical molding spaces (Sn) and the spherical molding spaces (Sn). The spherical molding auxiliary space (Sb) is a space that assists in molding the ball container (B) of the spherical molding space (Sn) into a perfect spherical shape between the spherical molding spaces (Sn). More specifically, the spherical molding auxiliary space (Sb) is formed by digging a certain depth between the spherical molding spaces (Sn) and the spherical molding spaces (Sn), and the spherical molding auxiliary space (Sb) may be formed in an inner region of an imaginary line connecting the outermost ends of both sides of the two spherical molding spaces (Sn). The above-mentioned spherical molding auxiliary space (Sb) may be dug to have a rounded inclined surface along a border that is in contact with the spherical molding space (Sn), and the rounded inclined surfaces contact each other in the center and become further apart from each other as they go outward. In the area where the rounded inclined surfaces become further apart, an auxiliary space plane molding surface that is roughly parallel to the mold base pressing surface (100A) and is a parallel surface dug to a certain depth with respect to the mold base pressing surface (100A) may be formed. The tapered surface of the spherical molding auxiliary space (Sb) may have an inclination angle of roughly 30 to 60° with respect to the longitudinal direction of the bottle-in-bottle molding space (S). As a more specific example, a space formed by digging through a 30 to 60° round inclined plane formed on the upper and lower sides of a spherical molding space (Sn) on one side and widening the space, and then protruding again through a 30 to 60° round inclined plane formed on the upper and lower sides of the spherical molding space (Sn) on the other side to a level corresponding to the mold base pressing surface (100A), corresponds to a spherical molding auxiliary space (Sb).

In addition, a spherical molding outer auxiliary space (Ss) is formed on both sides of the spherical molding space (Sn) of the bottle-in-bottle molding space (S). The spherical molding outer auxiliary space (Ss) is a space that assists in molding the ball container (B) of the spherical molding space (Sn) into a perfect spherical shape on the outside of the spherical molding space (Sn). More specifically, the spherical molding outer auxiliary space (Ss) is formed on both sides of the spherical molding space (Sn), and may be the remaining area of the bottle-in-bottle molding space (S) excluding the spherical molding space (Sn) and the spherical molding inter-auxiliary space (Sb). The edge of the spherical molding outer auxiliary space (Ss) that comes into contact with the spherical molding space (Sn) may be formed in a shape that is dug to have a tapered surface. In an area away from the round slope, an auxiliary space plane forming surface may be formed, which is roughly parallel to the mold base pressing surface (100A) and is a parallel plane dug to a certain depth with respect to the mold base pressing surface (100A). In addition, the outer end of the spherical forming outer auxiliary space (Ss) protrudes again to a level corresponding to the mold base pressing surface (100A), and a closed space can be formed when a pair of mold bases (100) are closed. As a more specific example, a space formed by raising the space dug and widened through the round slopes of 30 to 60° formed on both sides of the spherical forming space (Sn) again to a level corresponding to the mold base pressing surface (100A) by 80 to 90° corresponds to the spherical forming outer auxiliary space (Ss).

In mass production of ball containers (B), the ball containers (B) cannot be formed into a perfect spherical shape by simply pressing the mold base. The auxiliary structures that assist this are the spherical molding auxiliary space (Sb) and the spherical molding auxiliary space (Sb). The excess of the parison (P) that is not introduced into the spherical molding space (Sn) is introduced into the spherical molding auxiliary space (Sb) and the spherical molding auxiliary space (Sb) during the pressing process of the mold base, thereby preventing the ball containers (B) from being torn during the pressing process or the parison (P) not being able to fully fill the spherical molding space (Sn) and thus not being able to form a spherical shape.

Meanwhile, an air hole (ah) may be formed in the mold base (100). The air hole (ah) is communicated with the spherical molding space (Sn). More specifically, it may be communicated with the deepest part of the spherical molding space (Sn) with respect to the mold base pressing surface (100A). The air hole (ah) extends to a spaced gap formed between the mold base third body (130) and the mold base fourth body (140), and is communicated with the outside of the mold base (100) through the spaced gap in a state where air can pass therethrough. The air hole (ah) is an air discharge port for preventing a vacuum state of the spherical molding space (Sn) during the molding process of the ball container (B). When a parison (P) is introduced into a spherical molding space (Sn), pressure is generated as the space shrinks as the parison (P) is introduced into the spherical molding space (Sn), and as a result, it becomes difficult to form the ball container (B) into a perfect sphere. Therefore, an air outlet communicating with the outside from the spherical molding space (Sn) is required, and the component that performs this role is an air hole (ah).

Meanwhile, a cooling line (C) is formed in the mold base (100). The cooling line (C) is formed adjacent to the spherical molding space (Sn) and allows cooling water to flow. When a pair of mold bases (100) are closed and the parison (P) is introduced into the spherical molding space (Sn) to form a ball container (B), it is necessary to cool it and solidify it. The cooling line (C) serves to solidify the ball container (B) by allowing cooling water to flow when a pair of mold bases (100) are closed.

Meanwhile, the mold base may be a mass-manufacturing mold in which multiple bottle-in-bottle molding spaces (S) are formed.

Hereinafter, a method for manufacturing a cosmetic ball container according to the present invention will be described in detail.

Figure 6 is an exemplary diagram showing a method for manufacturing a cosmetic ball container according to an embodiment of the present invention.

The method for manufacturing a cosmetic ball container according to the present invention comprises, as illustrated in FIG. 8, a parison lowering step (S10) of forming and lowering a parison (P); a molding step (S20) of forming a bottle-in-bottle molded product by closing a pair of manufacturing molds in which a bottle-in-bottle molding space (S) is formed while blowing the parison (P); and a molded product obtaining step (S30) of opening the manufacturing molds to obtain a bottle-in-bottle molded product (BiB) and separating the ball container.

First, the parison lowering step (S10) is performed. In the parison lowering step (S10), a process of forming a parison (P) and lowering it between a pair of manufacturing molds is performed. As a more specific example, it would be appropriate to lower the parison (P) between the manufacturing molds to a position corresponding to the bottle-in-bottle molding space (S) of the mold base (100).

In the above parison lowering step (S10), the parison (P) may be lowered to form a parison having multiple layers. This is to form a ball container (B) having a multilayer structure. A method of forming a parison having multiple layers uses a known method.

The term parison, commonly used in the field of parison (P) molds in the above parison lowering step (S10), refers to parison. As an example, parison can be formed by melting resin using an extruder and attaching a die capable of forming a hollow shape, such as a hollow pipe shape, to the end of the extruder.

Next, a molding step (S20) is performed. In the molding step (S20), a pair of manufacturing molds in which a bottle-in-bottle molding space (S) is formed while blowing a parison (P) are closed to form a bottle-in-bottle molded product.

In the above molding step (S20), a plurality of spherical molding spaces (Sn) can be formed in the bottle-in-bottle molding space (S) of the manufacturing mold. For a description of this, refer to the description of the manufacturing mold for the cosmetic ball container described above.

In the above molding step (S20), a spherical molding inter-auxiliary space (Sb) may be formed between the spherical molding spaces (Sn) of the manufacturing mold. For a description of this, refer to the description of the manufacturing mold for the cosmetic ball container described above.

In the above molding step (S20), a spherical molding outer auxiliary space (Ss) may be formed on both sides of the spherical molding space (Sn) of the manufacturing mold. For a description of this, refer to the description of the manufacturing mold for the cosmetic ball container described above.

Meanwhile, the manufacturing mold in the above-described molding step (S20) may be a mass manufacturing mold in which a plurality of bottle-in-bottle molding spaces (S) are formed. A mass manufacturing mold according to another embodiment of the present invention will be discussed in the description of another embodiment to be described later.

Next, a molded product obtaining step (S30) is performed.

In the above molded product obtaining step (S30), the manufacturing mold is opened to obtain a bottle-in-bottle molded product (BiB), and the ball container (B) is separated from the bottle-in-bottle molded product (BiB).

In the above molded product obtaining step (S30), the process of obtaining a bottle-in-bottle molded product (BiB) and obtaining a ball container (B) from the bottle-in-bottle molded product (BiB) is related to the stop bolt (bt). By making the distance between one mold base (100) and the other mold base (100') closed as narrow as possible through the stop bolt (bt), the bottle-in-bottle molded product (BiB) can be manufactured so that the ball container (B) can be easily separated by tapping it. Alternatively, the process of obtaining a bottle-in-bottle molded product (BiB) in the above molded product obtaining step (S30) and obtaining a ball container (B) from the bottle-in-bottle molded product (BiB) may be performed simultaneously. This can be manufactured so that the ball container (B) is separated from the bottle-in-bottle molded product (BiB) at the same time as the mold is opened and closed by completely sealing the distance between the one-sided mold base (100) and the other-sided mold base (100') through the stop bolt (bt). Various implementations like this can be freely adjusted according to the choice of a typical implementer.

By the above manufacturing method, a bottle-in-bottle molded product (BiB) can be obtained, and a cosmetic ball container (B) according to the present invention can be obtained from the bottle-in-bottle molded product (BiB).

FIG. 7 is a photograph of a bottle-in-bottle molded product (BiB) according to an embodiment of the present invention, and FIG. 8 is an enlarged photograph of a ball container (B) of a bottle-in-bottle molded product (BiB) according to an embodiment of the present invention.

The cosmetic ball container (B) according to the present invention is characterized in that it is formed in a perfect spherical shape without forming an injection port. The cosmetic ball container (B) according to the present invention has one or more layers.

In addition, since the cosmetic ball container (B) according to the present invention is molded using resin, it can maintain the gimmick of the contents inside. The process of injecting the contents into the produced cosmetic ball container (B) can be carried out through known techniques.

Meanwhile, the cosmetic ball container (B) according to the present invention may have two or more layers, as shown in FIGS. 9 and 10. This can be implemented by lowering and forming a parison (P) having two or more layers in the parison lowering step (S10) of the manufacturing method.

As shown in FIGS. 9 and 10, when the cosmetic ball container (B) according to the present invention has three layers, each layer may be manufactured from a different resin component.

At this time, when the cosmetic ball container (B) according to the present invention has three layers, it may include an inner layer (B110), an outer layer (B120), and a middle layer (B115). The inner layer (B110), the outer layer (B120), and the middle layer (B115) may all be made of different resin components, but it is preferable that the middle layer be made of a component having adhesive properties. As an example, the inner layer (B110) may be made of a mixed resin of 60 wt% LDPE and 40 wt% Vistamaxx, the middle layer (B115) may be made of Nucrel (adhesive), and the outer layer (B120) may be made of Surlyn. When composed as described above, the barrier properties and durability of the cosmetic ball container (B) are excellent. However, the resin is not limited to this, and a combination of various resins may be applied.

Meanwhile, when the cosmetic ball container (B) according to the present invention has two layers, it may include an inner layer (B110) and an outer layer (B120), and each layer may include a biodegradable component. For example, the inner layer (B110) may be composed of a mixed resin of 30 wt% PP and 70 wt% Vistamaxx, and the outer layer (B120) may be composed of Adflex, but d2w 93190 (biodegradable) may be mixed into each of the inner layer (B110) and the outer layer (B120). Through such a configuration, biodegradability may be increased. However, the resin is not limited to this, and a combination of various resins may be applied.

Meanwhile, the cosmetic ball container (B) according to the present invention is not simply formed in each layer, and since an injection port is not formed, the inner layer (B110), outer layer (B120), and middle layer (B115) are formed by extending each layer. Accordingly, the barrier property and durability of the cosmetic ball container (B) manufactured according to the manufacturing method of the present invention are excellent.

Meanwhile, according to another embodiment of the present invention, a plurality of bottle-in-bottle molding spaces (S) can be formed in the mold base (100), and this is called a mass production mold.

FIG. 11 is a perspective view of a mold for mass manufacturing cosmetic ball containers according to another embodiment of the present invention, FIG. 12 is a perspective view of a mold for mass manufacturing cosmetic ball containers according to another embodiment of the present invention in an opened state, FIG. 13 is a perspective view of a mold for mass manufacturing cosmetic ball containers according to another embodiment of the present invention as viewed from a pressing surface, FIG. 14 is a cross-sectional view taken along the line B-B' of FIG. 10, and FIG. 15 is a cross-sectional view taken along the line A-A' of FIG. 10.

A mold for manufacturing a cosmetic ball container according to the mass production embodiment of the present invention comprises: a pair of mass production mold bases (200, 200') facing each other and connected by a guide pin (P); a plurality of mass production bottle-in-bottle molding spaces (1S, 2S, 3S, 4S) formed on the facing surfaces of the pair of mass production mold bases (200, 200'); and a plurality of spherical molding spaces (Sn) formed in the mass production bottle-in-bottle molding spaces (1S, 2S, 3S, 4S).

The above mass production mold bases (200) are formed as a pair corresponding to each other as shown in FIGS. 11 and 12, and are formed facing each other by being connected by a guide pin (P). These may be referred to as a one-sided mass production mold base (200) and an other-sided mass production mold base (200'), and they have corresponding shapes. The configuration of each identical symbol of the one-sided mass production mold base (200) and the other-sided mass production mold base (200') is indicated by ('), and have the same purpose and effect.

The surface facing one side of the mass-production mold base (200) and the other side of the mass-production mold base (200') is referred to as the mass-production mold base pressing surface (200A). In addition, the surface facing the upper part of the one side of the mass-production mold base (200) and the other side of the mass-production mold base (200') is referred to as the mass-production mold base upper surface (200B).

The above mass production mold base (200) may include a mass production mold base first body (210), a mass production mold base second body (220), a mass production mold base third body (230), and a mass production mold base fourth body (240), as shown in FIGS. 13 to 15.

Meanwhile, a guide pin (P) may be positioned in the mass manufacturing mold base (200) to connect the mass manufacturing mold bases (200). More specifically, a guide pin (P) may be positioned in the mass manufacturing mold base second body (220) and the mass manufacturing mold base third body (230). A pair of mass manufacturing mold bases (200, 200') may reciprocally move to come into contact with each other and then separate by the guide pin (P). The guide pin (P) may be fixed to one of the mass manufacturing mold bases (200) on one side or the other mass manufacturing mold base (200'). Meanwhile, a guide bush (Gb) may be formed on the outside of the guide pin (P) to facilitate smooth movement of the mass manufacturing mold base (200) by the guide pin (P).

Meanwhile, a stop bolt (bt) may be formed in the mass production mold base (200). More specifically, the stop bolt (bt) may be formed in the mass production mold base second body (220) and the mass production mold base third body (230). The stop bolt (bt) may be controlled to be introduced or withdrawn into the mass production mold base (200), and may adjust the distance when the mass production mold base (200) on one side and the mass production mold base (200') on the other side are closed, and may determine the degree to which the molded product is pressed. This may affect the separation of the ball container (B) from the bottle-molded product (BiB), which is a bottle that has been molded. By making the distance between the mass production mold base (200) on one side and the mass production mold base (200') on the other side relatively long when closed through the stop bolt (bt), the ball container (B) is prevented from being easily separated from the bottle-in-bottle molded product (BiB), and by making the distance between the mass production mold base (200) on one side and the mass production mold base (200') on the other side relatively narrow when closed through the stop bolt (bt), the cosmetic ball container (B) can be separated from the bottle-in-bottle molded product (BiB) by tapping it with a finger. By adjusting the stop bolt (bt), the degree to which the cosmetic ball container (B) is separated from the bottle-in-bottle molded product (BiB) can be freely adjusted according to the choice of a typical practitioner.

Meanwhile, the mass-manufactured mold base third body (230) and the mass-manufactured mold base fourth body (240) are not in perfect contact and may be spaced apart by a certain distance. Accordingly, a spaced gap may be formed between the mass-manufactured mold base third body (230) and the mass-manufactured mold base fourth body (240).

As shown in FIGS. 3 to 5, a plurality of mass-production bottle-in-bottle forming spaces (1S, 2S, 3S, 4S) are formed on the facing surfaces of the above pair of mass-production mold bases (200), more specifically, on the mass-production mold base pressing surface (200A) of the mass-production mold base (200). More specifically, they may be referred to as a first mass-production bottle-in-bottle forming space (1S), a second mass-production bottle-in-bottle forming space (2S), a third mass-production bottle-in-bottle forming space (3S), and a fourth mass-production bottle-in-bottle forming space (4S). It is preferable that the first mass-production bottle-in-bottle forming space (1S), the second mass-production bottle-in-bottle forming space (2S), the third mass-production bottle-in-bottle forming space (3S), and the fourth mass-production bottle-in-bottle forming space (4S) be formed at a certain distance from each other.

The above-mentioned mass-production bottle-in-bottle molding space (1S, 2S, 3S, 4S) refers to a space in which a plurality of ball containers (B) are formed in a disconnected manner within an entire container in a bottle-in-bottle manner. The present invention forms a plurality of ball containers (B) in a disconnected manner within an entire container through a bottle-in-bottle molding method, thereby manufacturing a ball container (B) without an injection port.

However, simply pressing a pair of mass-produced mold bases (200) does not produce a perfectly spherical container, and in order to realize a perfect spherical shape, a spherical molding space (Sn) and separate components to assist it are required. When the cosmetic ball container (B) has a perfect spherical shape, the balance of external force received by the cosmetic ball container (B) becomes constant, so that it can better withstand external impact and its preservability is improved. In addition, even when an injection port is not formed in the cosmetic ball container (B), it can better withstand external impact and has excellent durability.

To implement this, a plurality of spherical molding spaces (Sn) are formed at regular intervals in the mass-manufactured bottle-in-bottle molding spaces (1S, 2S, 3S, 4S). The spherical molding spaces (Sn) are positioned in the mass-manufactured bottle-in-bottle molding spaces (1S, 2S, 3S, 4S) in plurality, and as a more specific example, eight spherical molding spaces (Sn) may be formed at intervals from each other in the mass-manufactured bottle-in-bottle molding spaces (1S, 2S, 3S, 4S).

In one mass-production mold base (200), the spherical molding space (Sn) has a hemispherical shape dug to a certain depth in the mass-production mold base pressing surface (200A) of the mass-production mold base (200). The edges of the spherical molding space (Sn) should contact each other when a pair of mass-production mold bases (200) meet. Therefore, the edges of the spherical molding space (Sn) protrude to a level corresponding to the mass-production mold base pressing surface (200A) of the mass-production mold base (200).

Meanwhile, outside the boundary of the spherical molding space (Sn), a rounded inclined surface may be formed along the boundary. The rounded inclined surface formed outside the boundary of the spherical molding space (Sn) may have an inclination angle of approximately 30 to 60° along the boundary of the spherical molding space (Sn). The rounded inclined surface formed outside the boundary of the spherical molding space (Sn) is dug so as to face the inside of the mass manufacturing mold base (200).

In the above mass-produced bottle-forming spaces (1S, 2S, 3S, 4S), a spherical molding auxiliary space (Sb) is formed between the spherical molding spaces (Sn) and the spherical molding spaces (Sn). The spherical molding auxiliary space (Sb) is a space that assists in molding the ball container (B) of the spherical molding space (Sn) into a perfect spherical shape between the spherical molding spaces (Sn). More specifically, the spherical molding auxiliary space (Sb) is formed by digging a certain depth between the spherical molding spaces (Sn) and the spherical molding spaces (Sn), and the spherical molding auxiliary space (Sb) may be formed in an inner region of an imaginary line connecting the outermost ends of both sides of the two spherical molding spaces (Sn). The above-mentioned spherical molding auxiliary space (Sb) may be dug to have a rounded inclined surface along the edge that contacts the spherical molding space (Sn), and the rounded inclined surfaces contact each other in the center and become further apart from each other as they go outward. In the area where the rounded inclined surfaces become further apart, an auxiliary space plane molding surface that is roughly parallel to the mass-production mold base pressing surface (200A) and is a parallel surface dug to a certain depth with respect to the mass-production mold base pressing surface (200A) may be formed. The tapered surface of the spherical molding auxiliary space (Sb) may have an inclination angle of roughly 30 to 60° with respect to the longitudinal direction of the bottle molding space (1S, 2S, 3S, 4S) of the mass-production bottle. As a more specific example, a space formed by digging through a 30 to 60° round inclined plane formed on the upper and lower sides of a spherical molding space (Sn) on one side and widening the space, and then protruding again through a 30 to 60° round inclined plane formed on the upper and lower sides of the spherical molding space (Sn) on the other side to a level corresponding to the mass manufacturing mold base pressing surface (200A), corresponds to a spherical molding auxiliary space (Sb).

In addition, spherical molding outer auxiliary spaces (Ss) are formed on both sides of the spherical molding space (Sn) of the mass-produced bottle-in-bottle molding spaces (1S, 2S, 3S, 4S). The spherical molding outer auxiliary spaces (Ss) are spaces that assist in molding the ball container (B) of the spherical molding space (Sn) into a perfect spherical shape on the outside of the spherical molding space (Sn). More specifically, the spherical molding outer auxiliary spaces (Ss) are formed on both sides of the spherical molding space (Sn), and may be the remaining area of the mass-produced bottle-in-bottle molding spaces (1S, 2S, 3S, 4S) excluding the spherical molding space (Sn) and the spherical molding inter-auxiliary space (Sb). The edge of the spherical molding outer auxiliary space (Ss) that comes into contact with the spherical molding space (Sn) may be formed in a shape that has a tapered surface. In an area away from the round slope, an auxiliary space plane forming surface may be formed, which is roughly parallel to the mass-manufacturing mold base pressing surface (200A) and is a parallel plane dug to a certain depth with respect to the mass-manufacturing mold base pressing surface (200A). In addition, the outer end of the spherical forming outer auxiliary space (Ss) protrudes again to a level corresponding to the mass-manufacturing mold base pressing surface (200A), and a closed space can be formed when a pair of mass-manufacturing mold bases (200) are closed. As a more specific example, a space formed by raising the space dug widened by the 30 to 60° round slope formed on both sides of the spherical forming space (Sn) again to a level corresponding to the mass-manufacturing mold base pressing surface (200A) by 80 to 90° corresponds to the spherical forming outer auxiliary space (Ss).

A plurality of first mass-production bottle-in-bottle molding spaces, spherical molding spaces (1Sn), first mass-production molding space spherical molding inter-auxiliary spaces (1Sb), and first mass-production molding space spherical molding outer auxiliary spaces (1Ss) may be formed in the first mass-production bottle-in-bottle molding space (1S). A plurality of second mass-production molding spaces spherical molding spaces (2Sn), second mass-production molding space spherical molding inter-auxiliary spaces (2Sb), and second mass-production molding space spherical molding outer auxiliary spaces (2Ss) may be formed in the second mass-production bottle-in-bottle molding space (2S). A plurality of third mass manufacturing molding space spherical molding spaces (3Sn), third mass manufacturing molding space spherical molding inter-auxiliary spaces (3Sb), and third mass manufacturing molding space spherical molding outer auxiliary spaces (3Ss) may be formed in the third mass manufacturing bottle-in-bottle molding space (3S). A plurality of fourth mass manufacturing molding space spherical molding spaces (4Sn), fourth mass manufacturing molding space spherical molding inter-auxiliary spaces (4Sb), and fourth mass manufacturing molding space spherical molding outer auxiliary spaces (4Ss) may be formed in the fourth mass manufacturing bottle-in-bottle molding space (4S).

In mass production of ball containers (B), the ball containers (B) cannot be formed into a perfect spherical shape by simply pressing the mold base. The auxiliary structures that assist this are the spherical molding auxiliary space (Sb) and the spherical molding auxiliary space (Sb). The excess of the parison (P) that is not introduced into the spherical molding space (Sn) is introduced into the spherical molding auxiliary space (Sb) and the spherical molding auxiliary space (Sb) during the pressing process of the mold base, thereby preventing the ball containers (B) from being torn during the pressing process or the parison (P) not being able to fully fill the spherical molding space (Sn) and thus not being able to form a spherical shape.

Meanwhile, an air hole (ah) may be formed in the mass-production mold base (200). The air hole (ah) is formed in each bottle-in-bottle molding space (1S, 2S, 3S, 4S). The air hole (ah) is connected to the spherical molding space (Sn). More specifically, it may be connected to the deepest part of the spherical molding space (Sn) with respect to the mass-production mold base pressing surface (200A). The air hole (ah) extends to a spaced gap formed between the mass-production mold base third body (230) and the mass-production mold base fourth body (240), and is connected to the outside of the mass-production mold base (200) in a state where air can pass through the spaced gap. The air hole (ah) is an air discharge port for preventing a vacuum state of the spherical molding space (Sn) during the molding process of the ball container (B). When a parison (P) is introduced into a spherical molding space (Sn), pressure is generated as the space shrinks as the parison (P) is introduced into the spherical molding space (Sn), and as a result, it becomes difficult to form the ball container (B) into a perfect sphere. Therefore, an air outlet communicating with the outside from the spherical molding space (Sn) is required, and the component that performs this role is an air hole (ah).

Meanwhile, a cooling line (C) is formed in the mass production mold base (200). The cooling line (C) is formed adjacent to the spherical molding space (Sn) in each bottle-in-bottle molding space (1S, 2S, 3S, 4S), and cooling water can flow through it. When a pair of mass production mold bases (200) are closed and the parison (P) is introduced into the spherical molding space (Sn) to form a ball container (B), it is necessary to cool it and solidify it. The cooling line (C) serves to solidify the ball container (B) by allowing cooling water to flow through it when a pair of mass production mold bases (200) are closed.

Meanwhile, a cylinder (Si) can be formed on the mass production mold base (200) on one side, and has the function of opening and closing the mass production mold base (200).

As described above, a manufacturing mold for a cosmetic ball container, a manufacturing method for a cosmetic ball container, and a cosmetic ball container manufactured through the same were examined, and a cosmetic ball container can be provided that can have a perfect spherical shape without forming a separate injection port for blowing by compressing and molding a parison lowered through the same with a pair of manufacturing molds in which a bottle-in-bottle molding space including a plurality of spherical molding spaces is formed, and mass production of the cosmetic ball container is possible by utilizing a plurality of spherical molding spaces, and it was confirmed that the cosmetic ball container can be controlled to form a perfect spherical shape even in mass production by utilizing a manufacturing mold having a bottle-in-bottle molding space provided with a spherical molding inter-auxiliary space and a spherical molding outer auxiliary space.

Accordingly, the present invention discloses the development of a manufacturing method and a manufacturing mold for a cosmetic ball container, which can have a perfect spherical shape without forming a separate injection port for blowing, by compressing and molding a parison with a pair of manufacturing molds in which a bottle-in-bottle molding space including a plurality of spherical molding spaces is formed.

Although the present invention has been described together with the attached drawings, this is only one embodiment among various embodiments including the gist of the present invention, and the purpose is to enable a person having ordinary skill in the art to easily practice it, and it is clear that the present invention is not limited to the embodiments described above. Therefore, the protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope by change, substitution, replacement, etc., within the scope that does not depart from the gist of the present invention will be included in the rights of the present invention. In addition, it is clearly stated that some components of the drawings are provided exaggerated or reduced compared to the actual situation in order to more clearly explain the components.

100: Mold base 100A: Mold base pressing surface
100B: Mold base upper surface 110: Mold base first body
120: Mold base 2nd body 130: Mold base 3rd body
140: Mold base 4th body 200: Mass production mold base
200A: Mass production mold base pressing surface 200B: Mass production mold base upper surface
210: Mass production mold base 1st body 220: Mass production mold base 2nd body
230: Mass production mold base 3rd body 240: Mass production mold base 4th body
S: Bottle-in-bottle molding space Sn: Spherical molding space
Sb: Spherical molding inter-auxiliary space Ss: Spherical molding outer auxiliary space
Si: Cylinder C: Cooling line
G: Guide pin Gb: Guide botsh
bt: stop bolt aH: air hole
P: Parison BiB: Bottle-in-bottle molding
B: Cosmetics ball container

Claims (11)

A parison lowering step (S10) that forms and lowers the parison;
While blowing the above parison, a plurality of spherical molding spaces (Sn) having a rounded inclined surface dug toward the inside of the mold base (100) at a certain angle along the edge are formed, and between the spherical molding spaces (Sn) and the spherical molding spaces (Sn), a spherical molding inter-auxiliary space (Sb) having a shape dug so as to have a rounded inclined surface along the edge that contacts the spherical molding spaces (Sn) is formed in an inner region of an imaginary line connecting the outermost ends of both sides of the two spherical molding spaces (Sn), and on both sides of the spherical molding spaces (Sn), a spherical molding outer auxiliary space (Ss) having a shape dug so as to have a tapered surface along the edge that contacts the spherical molding spaces (Sn) is formed, thereby closing a pair of manufacturing molds including the bottle-in-bottle molding spaces (S). A molding step (S20) for molding a bottle-in-bottle molded product; and,
A method for manufacturing a cosmetic ball container, characterized by including a step (S30) of obtaining a molded product by opening a manufacturing mold to obtain a bottle-in-bottle molded product, and separating a ball container (B) from a bottle-in-bottle molded product (BiB) while adjusting the distance between one mold base (100) and the other mold base (100') through a stop bolt (bt) formed on the mold base (100).
In the first paragraph,
A method for manufacturing a cosmetic ball container, characterized in that the parison in the above parison lowering step (S10) has multiple layers.
delete delete delete In the first paragraph,
A method for manufacturing a cosmetic ball container, characterized in that the manufacturing mold in the above molding step (S20) is a mass manufacturing mold in which a plurality of bottle-in-bottle molding spaces are formed.
A pair of facing mold bases connected by guide pins;
A bottle-in-bottle molding space formed on the opposing surfaces of the above pair of mold bases; and,
The above bottle-in-bottle molding space is formed in multiples and includes a spherical molding space having a round inclined surface dug toward the inside of the mold base (100) at a certain angle along the edge,
Between the spherical molding spaces (Sn) of the above bottle-in-bottle molding spaces (S) and the spherical molding spaces (Sn), a spherical molding inter-auxiliary space (Sb) is formed in a shape that has a rounded slope along the edge that contacts the spherical molding space (Sn) in an inner area of an imaginary line connecting the outermost ends of both sides of the two spherical molding spaces (Sn).
On both sides of the above spherical molding space (Sn), a spherical molding outer auxiliary space (Ss) is formed in a shape in which the edge contacting the spherical molding space (Sn) is dug to have a tapered surface in the remaining area of the bottle-in-bottle molding space (S) excluding the spherical molding space (Sn) and the spherical molding inter-auxiliary space (Sb).
A manufacturing mold for a cosmetic ball container, characterized in that the ball container (B) is separated from a bottle-in-bottle molded product (BiB) by adjusting the distance between one side mold base (100) and the other side mold base (100') by a stop bolt (bt) formed on the mold base (100).
delete delete In Article 7,
A mold for manufacturing a cosmetic ball container, characterized in that the mold base is a mass-production mold in which a plurality of bottle-in-bottle molding spaces are formed.
A cosmetic ball container manufactured by the manufacturing method of claim 1, characterized in that it is formed in a perfectly spherical shape without forming an injection port.