KR101446676B1 - Sprocket roller and laminating apparatus comprising the same - Google Patents

Abstract

A laminating apparatus is provided that includes a sprocket roller and a sprocket roller. The sprocket roller includes a cylindrical roller body and a sprocket. The sprocket has a plurality of concavities and convexities formed along an outer circumferential surface thereof. An average of the distance from the center of the sprocket to the sprocket groove and the distance from the center of the sprocket to the sprocket, Less than radius.

Description

Sprocket rollers and laminating apparatus comprising the same

The present invention relates to a sprocket roller and a laminate apparatus including the same, and more particularly to a sprocket roller used in a film laminating process and a laminate apparatus including the same.

In general, the roll-to-roll method is a technique in which a tape-like base material is unwound from a rotary roll without being cut, and is introduced into a part production line to reduce the manufacturing cost of the parts. In order to laminate two or more substrates using this roll-to-roll method, a pair of rollers is provided and the substrate is passed between the pair of rollers while being rotated under pressure

However, in such a conventional roll-to-roll laminate, misalignment of the substrates occurs and the quality of the joining is irregular due to the error of the pressing pressure, so that it is difficult to form a high-precision laminate requiring alignment.

Although sprocket rollers have been disclosed in which a sprocket hole is formed at the edge of a tape-like base material to improve positional alignment and sprockets corresponding to the sprocket holes are formed along the outer peripheral surface of the roller, It was still difficult to precisely laminate. Further, when excessive pressure is applied, there is a problem that the base material is damaged or the sprocket roll is damaged or deformed.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a sprocket roller and a laminator apparatus capable of alleviating an impact due to pressing and capable of high-precision lamination.

Another object of the present invention is to provide a sprocket roller and a laminator apparatus which are easy to disassemble and assemble and maintain.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a method of manufacturing the same.

According to an aspect of the present invention, there is provided a roller comprising: a cylindrical roller body including an elastic material; a sprocket member disposed on at least one of two bottom surfaces of the roller body; A sprocket protruding from the reference surface, and a sprocket groove recessed from the reference surface.

According to another aspect of the present invention, there is provided a laminating apparatus including the sprocket roller.

The details of other embodiments are included in the detailed description and drawings.

The embodiments of the present invention have at least the following effects.

If the roller body is made of an elastic material, the impact can be alleviated even if the roller surface is pressed, and the deformation of the shape can be prevented or minimized.

 The diameter of the reference surface portion of the sprocket is made smaller than the diameter of the end surface of the roller body so that the pressure applied to the sprocket reference surface can be relaxed when the roller body is pressed.

On the other hand, by constituting the sprocket member and the roller main body in a fastening manner, if any one of them is abnormal, it is possible to easily replace only the member having an abnormality without replacing the entire roller.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is a perspective view of a sprocket roller according to an embodiment of the present invention.
2 is an exploded perspective view of a sprocket roller according to an embodiment of the present invention.
3 is a cross-sectional view and an enlarged view of a sprocket roller according to an embodiment of the present invention.
4 is a perspective view of a laminating apparatus according to an embodiment of the present invention.
5 is a side view and an enlarged view of a laminating apparatus according to an embodiment of the present invention.
6 is a cross-sectional view showing a state in which a film is fed and conveyed in the present invention.
7 is a cross-sectional view of a lamination apparatus according to an embodiment of the present invention.
8 is a side view of a sprocket member according to an embodiment of the present invention.
9 is a side view of a sprocket member according to another embodiment of the present invention.
10 is a perspective view of a sprocket according to an embodiment of the present invention.
11 is an exploded perspective view of a sprocket roller according to another embodiment of the present invention.
12 is an assembled perspective view of a sprocket roller according to another embodiment of the present invention.
13 is an exploded perspective view of a sprocket roller according to another embodiment of the present invention.
14 is an assembled perspective view of a sprocket roller according to another embodiment of the present invention.
15 is a side view and an enlarged view of a lamination apparatus according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 is a perspective view of a roller according to an embodiment of the present invention. 2 is an exploded perspective view of a roller according to an embodiment of the present invention. 3 is a cross-sectional view of a roller according to an embodiment of the present invention.

Referring to Figs. 1 to 3, the roller 100 includes a roller body 110 and a sprocket member 120 fastened to at least one end of the roller body 110. As shown in Fig.

The roller body 110 may be formed in a cylindrical shape. In the present specification, two bottom surfaces derived from the cylindrical shape may be referred to as one end and the other end of the roller body 110. Further, the cylindrical side surface may be referred to as a roller surface.

The roller body 110 may be made of an elastic material. For example, the roller body 110 may be made of a material such as rubber, silicone, or urethane. When the roller body 110 is made of an elastic material, even if the roller surface is pressed, the impact can be mitigated, and the shape of the roller body 110 can be prevented or minimized due to its restoring force.

The sprocket member 120 may be fastened to one end of the roller body 110. Although the sprocket member 120 is fastened to one end and the other end of the roller body 110 in the drawing, the sprocket member 120 may be installed on only one side. The coupling of the roller body 110 and the sprocket 120 can be achieved by a coupling member (not shown). As examples of the joining member, an adhesive or a pressure-sensitive adhesive or films thereof may be exemplified.

The sprocket member 120 may have a shape corresponding to the shape of one end of the roller body 110. For example, the sprocket member 120 may be formed in a substantially disc shape as a whole.

A plurality of sprockets and sprocket grooves are formed around the sprocket member 120. In an exemplary embodiment, the outer peripheral surface of the sprocket member 120 may include an interlocking reference surface 1203, a sprocket 1202 protruding from the reference surface, and a sprocket groove 1201 recessed from the reference surface.

The engraved shape and size of the sprocket groove 1201 may be substantially the same as the embossed shape and size of the sprocket 1202. For example, the sprocket 1202 may have a trapezoidal shape whose upper side is smaller than the base, and the sprocket grooves 1201 may have the same engraved trapezoidal shape. In an exemplary embodiment, the trapezoid may be of the same shape as the inner angles formed by the two inclined lines with the base.

The shapes and sizes of the sprocket grooves 1201 and the sprocket 1202 can be changed according to the physical properties and thickness of the workpieces such as the films F1 and F2 or the shape of the sprocket holes formed in the workpiece.

The sprocket grooves 1201 and the sprockets 1202 can be alternately arranged at regular intervals. A reference plane 1203 may be disposed between the sprocket groove 1201 and the sprocket 1202. The reference plane 1203 is intermittently formed by the sprocket grooves 1201 and the sprocket 1202. However, when the intermittent reference plane 1203 is extended and connected, a substantial circular shape can be defined.

Although not shown in the drawings, the reference plane 1203 may be omitted. In this case, it goes without saying that the sprocket groove 1201 and the sprocket 1202 are adjacent to each other. In this case, not only a virtual reference plane which is a reference of the sprocket groove 1201 and the sprocket 1202 but also a virtual circular reference plane is extended and connected to become a substantially circular shape.

The sprocket 1202 protrudes beyond the roller surface of the roller body 110 while the sprocket is engaged with the roller body, but the reference surface 1203 is disposed below the roller surface of the roller body. That is, the height d1 of the sprocket 1202 protruding from the reference surface 1203 of the sprocket is larger than the height d2 of the sprocket 1202 protruding from the roller surface. The difference (w) between the relative height of the roller surface and the reference surface 1203 can alleviate the pressure applied to the sprocket reference surface 1203 when the roller body is pressed. A detailed description thereof will be given later.

The roller according to an embodiment of the present invention as described above can be applied to a roll-to-roll laminate apparatus or the like.

4 is a perspective view of a laminating apparatus according to an embodiment of the present invention. 5 is a side view of a laminating apparatus according to an embodiment of the present invention. 6 is a cross-sectional view showing a state in which a film is fed and conveyed in the present invention.

4 and 5, the lamination apparatus may include a first sprocket roller 100 and a second sprocket roller 200 disposed adjacent to each other. The first sprocket roller 100 and the second sprocket roller 200 are substantially the same as the sprocket roller 100 described with reference to Figs. For convenience of explanation, the first sprocket roller, the first roller body, and the first sprocket member are referred to by the same reference numerals as the sprocket rollers, the roller body, and the sprocket members in Figs. Reference numeral 200 denotes a second sprocket roller, and reference numerals 210 and 220 denote a second roller body and a second sprocket member, respectively. Reference numerals 2201, 2202, and 2203 designate sprocket grooves, sprockets, and reference planes of the second sprocket member.

The first sprocket roller 100 and the second sprocket roller 200 are arranged parallel to each other. The first sprocket roller 100 rotates in the first direction and the second sprocket roller 200 rotates in the second direction opposite to the first direction. The rotational speed of the first sprocket roller 100 and the rotational angular speed of the second sprocket roller 200 may be substantially the same when the sizes of the first sprocket roller 100 and the second sprocket roller 200 are the same have.

When the first sprocket roller 100 and the second sprocket roller 200 are rotated, the sprocket / sprocket grooves of the first sprocket member at the contacts thereof are (1202/1201) sprocket grooves / sprockets of the second sprocket member 2201/2202 ). That is, the sprockets 1202 of the first sprocket members are inserted into the sprocket grooves 2201 of the second sprocket members at the contacts of the first sprocket roller 100 and the second sprocket roller 200, The sprocket 1202 of the first sprocket member is separated from the sprocket groove 2201 of the second sprocket member. The sprocket groove 2201 of the second sprocket member is inserted into the sprocket groove 1201 of the first sprocket member while the sprocket groove 1201 of the first sprocket member and the sprocket 2202 of the second sprocket member are disposed at the contacts , And they are separated from each other by rotation. And is repeated according to the rotation of the first sprocket roller 100 and the second sprocket roller 200.

Referring to Fig. 6, the films F1 and F2 may be coupled to the sprocket member and drawn in at an angle to the bonding surface. The drawn film can be bonded at the contact point of the sprocket member and transported in the horizontal direction. The angle between the bonding surface of the film and the incoming film may preferably be about 70 to 90 degrees.

Meanwhile, the sprocket members 120 and 220 may be made of a hard material such as a metal or a thermosetting resin.

 When the first sprocket member 120, which is a hard material, and the second sprocket member 220 are engaged with each other and rotate, a pressing pressure is applied. At this time, since the roller bodies 110 and 210 have elasticity, the pressing pressure is relieved, but since the sprocket members 120 and 220 are rigid, the pressing pressure is not relaxed and is applied to the laminate workpiece, And the positional misalignment is caused by the phenomenon that the workpiece is pushed out.

Therefore, in this embodiment, the reference surfaces 1203 and 2203 of the sprocket member are formed to be lower inside the roller than the outer peripheral surfaces of the roller bodies 110 and 220 as shown in FIG.

Since the first roller body 110 and the second roller body 210 further protrude from the reference surfaces 1203 and 2203 of the first and second sprocket members as described above, The reference surface 1203 of the first sprocket and the reference surface 2203 of the second sprocket are engaged with each other even if the first roller body 110 and the second roller body 210 come into contact with each other, And spaced apart by a predetermined distance. Therefore, the reference surface 1203 of the first sprocket member and the reference surface 2203 of the second sprocket member may not be rubbed or pressed against each other. Therefore, deformation of the first sprocket 120 and the second sprocket 220 can be prevented.

The first roller body 110 and the second roller body 210 are formed of elastic material so that the first roller body 100 and the second roller body 200 are pressed against each other at a contact point, The radiuses of the first roller body 110 and the second roller body 210 may be reduced. As a result, the degree of protrusion of the first roller body 110 and the second roller body 210 with respect to the reference surface may be small or may not protrude at the contact. If the first roller body 110 and the second roller body 210 are not protruded from the reference surfaces of the first sprocket 120 and the second sprocket 220, the first sprocket member 120 and the second sprocket member 220 ) Can be brought into mutual contact with each other. In this case, however, the elastic force and the restoring force of the first roller body 110 and the second roller body 210 act to reduce the friction or pressure between the first sprocket member 120 and the second sprocket member 220 Or minimized.

On the other hand, if the first roller body 110 and the second roller body 210 are made of an elastic material, it is advantageous to prevent deformation of the first roller body 110 and the second roller body 210 themselves. More specifically, during the course of the lamination process, one or more films, substrates, substrates or layers may be interposed between the first sprocket roller 100 and the second sprocket roller 200. In this case, the first roller body 110 and the second roller body 210 can be further pressed at the contact point. However, since the first roller body 110 and the second roller body 210 are made of elastic material, the original shape can be easily restored by the restoring force, and the external deformations can be reduced.

Here, the distance between the first roller body 110 and the second roller body 210 can be adjusted according to working conditions, and the pressing pressure can also be adjusted.

Hereinafter, other embodiments of the present invention will be described. In the following embodiments, the same components as those already described are referred to as the same reference numerals, and redundant description will be omitted or simplified.

10 is an exploded perspective view of a sprocket roller 101 according to another embodiment of the present invention. Referring to FIG. 10, the sprocket roller 101 according to the present embodiment has a shaft 112 at both ends of a roller body, and a corresponding hollow portion 131 is formed at the center of the sprocket. It is different from the example. The shaft 112 is inserted through the hollow portion 131 of the sprocket member. The shaft 112 may be provided with a rotation drive device or the like.

Further, the roller body can be fastened with the shaft as a central axis.

Figures 8 and 9 are side views of a sprocket member according to various embodiments of the present invention, illustrating that the sprocket member may include a plurality of threaded holes 132. [ Needless to say, such a sprocket member 122 may be coupled to one end and the other end of the roller body 110 by a screw or bolt / nut coupling inserted into the screw hole 132, though not shown in the drawings.

FIG. 11 is an exploded perspective view of a sprocket roller according to another embodiment of the present invention, and FIG. 12 is an assembled perspective view of a sprocket roller according to the present embodiment. The sprocket roller according to the present embodiment is different from the embodiment of Fig. 8 in that a side roll 141 is further provided on the outer side of the sprocket member 121. [ The side rolls 141 have a substantially circular shape and can have the same height as the roller surface when viewed from the side. During the lamination process, one or more films, substrates, substrates or layers may be interposed between the first sprocket roller 100 and the second sprocket roller 200. The side rolls 141 having the same height as the roller surface The side rolls 141 press the edge of the film, substrate, substrate or layers at the same pressure as the roller surface, thereby allowing the film, substrate, substrate or layers to be more accurately aligned.

The side rolls 141 can be fastened to one end of the roller body 111. Although the figure shows a case in which the side rolls are fastened to one end and the other end of the roller body 111, they may be provided on only one side. The fastening of the side rolls 141 can be done by an engaging member (not shown). As examples of the coupling member, an adhesive or an adhesive or films thereof may be exemplified. It can also be fastened by the combination of screws and nuts inserted into screw holes and bolts. In the case where the shaft 112 is provided at both ends of the roller body, a hollow portion may be formed in the side roll so that the shaft 112 may be inserted, and the shaft 112 may be inserted into the hollow portion. After the shaft 112 is inserted, it may be fastened using a screw hole. The fastening of the side roll 141 is not limited to the above-described method and may be fastened by various fastening means.

FIG. 13 is an exploded perspective view of a sprocket roller according to another embodiment of the present invention, and FIG. 14 is an assembled perspective view of a sprocket roller according to another embodiment of the present invention. Figure 13 illustrates that in some embodiments of the present invention the roller body may include a core 163 made of an inelastic material and a coating layer 173 made of an elastic material formed on an outer circumferential surface of the core.

Specifically, the sprocket roller 500 according to the present embodiment differs from the embodiment of FIG. 11 in that a coating layer 173 of a certain thickness is formed on the roller surface and the outer circumferential surface of the side roll 142.

 The coating layer 173 may have a predetermined thickness, and the core 163 having no coating layer may be formed of a rigid metal.

The coating layer 173 may be made of an elastic material. For example, the coating layer 173 may be formed of a material such as rubber, silicone, or urethane. However, the present invention is not limited to the above-described example, and any elastic material may be used.

If the coating layer 173 is made of an elastic material, the impact can be alleviated even if the roller surface is pressed, and the deformation of the coating layer 173 can be prevented or minimized.

 The thickness of the elastic coating layer 173 is not limited, but the core 163 in which the coating layer 173 is not formed is preferably made of a metal in consideration of strength, rotational driving, and the like.

The thickness of the coating layer 183 formed on the side roll is preferably substantially the same as the thickness of the coating layer 173 formed on the roller body. When a coating layer 183 having the same thickness as the elastic coating layer 173 formed on the roller body is formed, the side rolls press the edge of the film, substrate, substrate or layers at the same pressure as the roller surface to form a film, So that the layers can be more accurately aligned.

15 is an enlarged view of a sprocket according to another embodiment of the present invention.

Referring to FIG. 15, the sprocket according to the present embodiment is different from the embodiment of FIG. 2 in that the concavity and convexity of the sprocket is semicircular.

Specifically, it is as follows. In the exemplary embodiment, the outer peripheral surface of the sprocket includes an intermittent reference surface, a sprocket 1202a protruding from the reference surface, and a sprocket groove 1201a recessed from the reference surface 1203a. . ≪ / RTI >

The engraved shape and size of the sprocket groove 1201a may be substantially the same as the embossed shape and size of the sprocket 1202a. For example, the sprocket 1202a may have a semicircular arc shape and the sprocket grooves 1201a may have the same semicircular arc shape. The sprocket grooves 1201a and the sprockets 1202a may be alternately arranged at regular intervals. A reference plane 1203a may be disposed between the sprocket groove 1201a and the sprocket 1202a. The reference plane 1203a is intermittently formed by the sprocket grooves 1201a and the sprocket 1202a, but when the intermittent reference plane 1203a is extended and connected, a substantially circular shape can be defined. Although not shown in the drawings, the reference plane 1203a may be omitted. In this case, it goes without saying that the sprocket groove 1201a and the sprocket 1202a will be adjacent to each other. In this case, not only a virtual reference plane serving as a reference of the sprocket grooves 1201a and the sprocket 1202a but also a virtual circular reference plane can be formed into a substantial circle by extending and connecting the virtual reference planes.

As described above, when the sprocket is formed into a semicircular shape, the friction generated when the sprocket rotates while being engaged can be alleviated.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100, 200, 101, 102, 103: sprocket rollers
110, 210 and 113:
120, 121, 220, 122: sprocket member
1201, 2201, 1201a: Sprocket groove of the sprocket member
1202, 2202, 1202a: sprocket member sprocket
1203, 2203, 1203a: Reference surface of the sprocket
112: shaft
132: screw hole
143:
141, 142: side roll
163: Core
173, 183: Elastic coating layer
F1, F2: Film

Claims (17)

A cylindrical roller body including an elastic material; And
And a sprocket member fastened to at least one end of the roller body and having a sprocket groove and a sprocket disposed along an outer circumferential surface thereof,
Wherein the sprocket member further comprises a side roll which is fastened on the outside and whose diameter is equal to the diameter of the roller body and which includes an elastic material. The method according to claim 1,
Wherein the outer peripheral surface of the sprocket member further includes an intermittent reference surface,
Wherein the reference surface is disposed between the sprocket and the sprocket groove,
And the distance from the center of the sprocket member to the reference surface is smaller than the radius of the end surface of the roller body. delete The method according to claim 1,
Wherein the roller body or the side roll includes a core made of an inelastic material and an elastic coating layer formed on an outer circumferential surface of the core. The method according to claim 1,
Wherein the sprocket member is made of a hard material. The method according to claim 1,
Wherein the sprocket grooves and the sprockets are in the shape of a square or semicircular arc, respectively. The method according to claim 1,
Further comprising a shaft,
Wherein the roller body and the sprocket member are coupled with the shaft as a central axis. 8. The method of claim 7,
Wherein the outer peripheral surface of the sprocket member further includes an intermittent reference surface,
Wherein the reference surface is disposed between the sprocket and the sprocket groove,
And the distance from the center of the sprocket member to the reference surface is smaller than the radius of the end surface of the roller body. delete 8. The method of claim 7,
Wherein the roller body or the side roll includes a core made of an inelastic material and an elastic coating layer formed on an outer circumferential surface of the core. 8. The method of claim 7,
Wherein the sprocket member is made of a hard material. 8. The method of claim 7,
Wherein at least a portion of the sprocket groove and the sprocket are of a tetragonal shape or a semicircular shape. A first sprocket roller including a cylindrical first roller body including an elastic material and a first sprocket member which is fastened to at least one end of the first roller body and has a sprocket groove and a sprocket along the outer circumferential surface thereof; And
A second sprocket roller disposed adjacent to the first sprocket roller, the second sprocket roller having a cylindrical second roller body including a resilient material, and a sprocket groove and a sprocket disposed on at least one end of the second roller body along the outer circumferential surface thereof A second sprocket roller including a second sprocket member; ≪ / RTI >
The sprocket and the sprocket grooves of the first sprocket member are sequentially engaged with the sprocket grooves and the sprocket of the second sprocket member,
A first side roll coupled to the first sprocket member at an outer side thereof and having a diameter equal to a diameter of the first roller body and including an elastic material; And
And a second side roll which is fastened at the outer side of the second sprocket member and whose diameter is equal to the diameter of the second roller body and which comprises an elastic material. delete 14. The method of claim 13,
Further comprising a first shaft and a second shaft,
Wherein the first roller body, the first sprocket member, and the first side roll are fastened with the first shaft as a center shaft, and the second roller body, the second sprocket member, 2 A laminate device fastened with a shaft as a central axis. 14. The method of claim 13,
Wherein an outer peripheral surface of the first sprocket member further includes an intermittent first reference surface, the first reference surface is disposed between the sprocket and the sprocket groove of the first sprocket member, and the first reference surface is located between the center of the sprocket member and the first reference surface The second reference surface is disposed between the sprocket and the sprocket grooves of the second sprocket member, and the second reference surface is disposed between the sprocket and the sprocket grooves of the second sprocket member And the distance from the center of the sprocket member to the second reference surface is smaller than the radius of the first roller body cross section. 14. The method of claim 13,
Wherein the first roller body, the first side roll, the second roller body or the second side roll comprises a core made of an inelastic material and an elastic coating layer formed on an outer circumferential surface of the core.

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