CN120056354B

CN120056354B - Injection molding device for automobile parts

Info

Publication number: CN120056354B
Application number: CN202510382534.3A
Authority: CN
Inventors: 严晓杰; 吴晓洪
Original assignee: Tian Si Li Plastics Co ltd
Current assignee: Tian Si Li Plastics Co ltd
Priority date: 2025-03-28
Filing date: 2025-03-28
Publication date: 2025-09-12
Anticipated expiration: 2045-03-28
Also published as: CN120056354A

Abstract

The present invention belongs to the field of intelligent manufacturing technology, specifically an injection molding device for automobile parts. It includes a fixed seat, a movable mold, a fixed mold and an injection molding structure, etc. The movable mold is connected to the support through a cylinder. The fixed seat is provided with a fixed mold that is engaged with the movable mold. The movable mold and the fixed mold are closed to form an injection cavity. An injection molding structure for molding the parts is provided between the joint surfaces of the movable mold and the fixed mold. The present invention uses an injection molding tube with an adjustable angle design and a circumferentially distributed injection port to enable the molten material to be injected and filled into the injection molding cavity from multiple directions simultaneously, which is conducive to reducing flow path differences, avoiding bubbles and shrinkage marks, and is particularly suitable for complex structural parts; and the narrowing port design at the end of the injection molding channel can accelerate the flow rate of the molten material, thereby facilitating the improvement of the density of the injection filling of the molded parts; and is conducive to automatically forming a shearing cut for the waste material remaining on the molded parts, thereby facilitating the smooth removal of the waste material.

Description

Auto-parts injection molding device

Technical Field

The invention belongs to the technical field of intelligent manufacturing, and particularly relates to an injection molding device for an automobile part.

Background

The existing injection molding device for automobile parts adopts a fixed material injection port design, and the flow path of molten materials in the injection molding process is single and the direction is uncontrollable, so that the material filling is uneven. For automobile parts with complex structures (such as multi-curved-surface components, internal rib plate structures and the like), a flow stagnation area is easily formed in a cavity by the materials, so that defects such as bubbles, sink marks or stress concentration are generated, and the yield of finished products is obviously reduced. In addition, the fixed sprue is difficult to adapt to runner design requirements of different molds, resulting in limited equipment versatility. And the injection molding runner waste (such as a pouring gate, flash and the like) at the edge of the injection molded fitting is manually cut off, so that the operation time is long and potential safety hazards exist. And undoubtedly increases the cost of subsequent quality tests.

In view of the above, an injection molding device for auto parts with an adjustable injection structure and automatic scrap cutting is provided to solve the above-mentioned problems.

Disclosure of Invention

In order to overcome the limitation of the existing injection molding device in the practical use process, the invention provides the automobile part injection molding device with an adjustable injection molding structure and automatic scrap cutting.

The technical implementation scheme of the invention is that the injection molding device for the automobile accessories comprises a movable seat, a movable mould, a fixed seat, a fixed mould and a feed pipe, wherein the movable mould is connected to a support through a first cylinder, the fixed seat is provided with a fixed mould matched and buckled with the movable mould, the movable mould and the fixed mould are closed to form an injection molding cavity, the injection molding device also comprises an injection molding structure, a material ejection structure and a material cutting device, an injection molding structure for accessory molding is arranged between the mould clamping surfaces of the movable mould and the fixed mould, the injection molding structure comprises a regulator, an injection pipe and a bulge, the injection pipe is rotationally connected to the middle part of the fixed mould, the outer end of the injection pipe is communicated with the feed pipe through a rotary joint, the inside of the fixed mould is provided with the regulator for fine adjustment of the rotation angle of the injection pipe, the inner end of the injection pipe is provided with a plurality of injection ports at intervals along the circumferential direction, the molding surface of the fixed mould is provided with an injection passage communicated with each injection port, the molding surface of the movable mould is correspondingly provided with a bulge matched with the injection passage port, the fixed mould is also internally provided with a material ejection structure for ejecting the molded accessories, and the bottom of the movable seat is also provided with a material cutting device for synchronously cutting the waste remained on the accessories; the ejector structure comprises an ejector rack, ejector pins and a second cylinder, wherein the ejector rack is arranged in an inner cavity of the fixed seat in a sliding manner, ejector pins are distributed on the ejector rack at intervals, the ejector pins penetrate through the fixed mold in a sliding manner and the end part of the ejector pin is flush with the bottom surface of the injection molding cavity, the second cylinder for controlling the ejector rack and the ejector pins to move and stretch and adjust is arranged in the fixed seat, the connecting seat is arranged at the bottom of the movable seat, the blanking knife rest is arranged on the connecting seat, when the movable seat is closed in the direction of the fixed mold, the blanking knife rest moves along with and synchronously cuts off waste materials on the clamping and fixing accessory, and the communication ends of the injection molding channel and the injection molding cavity are respectively provided with a narrowing opening with a tapered section.

As a further improvement of the technical scheme, the automatic clamping device further comprises a clamping mechanism, wherein the clamping mechanism comprises a guide rail, an electric bidirectional screw rod, clamping arms and clamping blocks, the middle part of the rack is provided with the guide rail, the electric bidirectional screw rod is installed in the guide rail, the two clamping arms are sleeved in the guide rail in a sliding manner and are respectively in threaded fit with the electric bidirectional screw rod, and the tail ends of the clamping arms are provided with the clamping blocks with anti-skidding patterns for clamping and fixing accessories.

As a further improvement of the technical scheme, the blanking knife rest and the clamping arm are horizontally arranged opposite.

As a further improvement of the technical scheme, the automatic flow distribution device further comprises an automatic flow distribution assembly, wherein the automatic flow distribution assembly comprises a connecting plate, flow guide plates and an electric conveying belt, the bottom of the rack is provided with the connecting plate, the lower side of the connecting plate is connected with the flow guide plates, and the electric conveying belt for sorting and conveying finished product accessories and waste materials is arranged between the two sides of the flow guide plates and the connecting plate respectively.

As a further improvement of the technical scheme, the guide plate adopts an inverted V-shaped structural design and is used for automatically guiding the finished fittings and cut waste materials to the electric conveyor belt respectively.

As the further improvement of above-mentioned technical scheme, still include intelligent material taking manipulator, intelligent material taking manipulator includes horizontal electronic slide rail, vertical electronic slide rail, linking arm and electric sucking disc, and horizontal electronic slide rail sets up in the support top, installs vertical electronic slide rail on its slider, is connected with the electric sucking disc that is used for getting the material through the linking arm on the slider of vertical electronic slide rail.

Compared with the prior art, the device has the beneficial effects that through the injection pipe with the adjustable angle design and the injection ports which are combined with the circumferential distribution, molten materials can be synchronously injected and filled into the injection cavity from multiple directions, so that the difference of flow paths is reduced, bubbles and sink marks are avoided, the device is particularly suitable for accessories with complex structures, the narrowing port design at the tail end of an injection channel can accelerate the flow speed of the molten materials, further, the compactness of injection filling of the molded accessories is improved, the automatic formation of a shear notch on the residual waste on the molded accessories is facilitated, further, the smooth cutting of the waste is facilitated, in addition, the device can carry out intelligent automatic injection molding on the accessories and automatic batch cutting of the waste through the PLC, further, the efficiency and quality of the injection molding of the accessories are improved, and the cutting of the residual waste on the accessories is avoided through manpower.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic diagram of a connection structure of a fixing seat, a fixed mold and an injection molding pipe of the present invention.

FIG. 3 is a schematic diagram of the connection structure of the movable base, movable mold, projection and cutter according to the present invention.

Fig. 4 is a schematic perspective view of the injection structure, regulator and ejector structure of the present invention.

Fig. 5 is a schematic perspective view of another view of the inventive injection structure, regulator and ejector structure.

Fig. 6 is a schematic perspective view of the clamping mechanism and the cutter according to the present invention.

Fig. 7 is a schematic perspective view of a clamping mechanism according to the present invention.

Fig. 8 is a schematic perspective view of an intelligent material taking manipulator according to the present invention.

Fig. 9 is a schematic perspective view of an automatic diverting assembly according to the present invention.

The reference numerals in the drawing have the meanings of 1 part of a rack, 2 parts of a guide rod, 3 parts of a movable seat, 30 parts of a movable mold, 31 parts of a bulge, 32 parts of a support, 320 parts of a PLC controller, 33 parts of a first cylinder, 4 parts of a fixed seat, 40 parts of a fixed mold, 401 parts of an injection cavity, 41 parts of an injection channel, 42 parts of a narrowing opening, 5 parts of a feed pipe, 50 parts of an injection pipe, 51 parts of an injection opening, 6 parts of an adjusting gear, 60 parts of a servo motor, 61 parts of a driving gear, 7 parts of a jacking frame, 70 parts of a thimble, 71 parts of a cylinder II, 8 parts of a guide rail, 80 parts of an electric bidirectional screw, 81 parts of a clamping arm, 82 parts of a clamping block, 9 parts of a horizontal electric sliding rail, 90 parts of a vertical electric sliding rail, 91 parts of a connecting arm, 92 parts of an electric sucking disc, 10 parts of a connecting seat, 101 parts of a blanking tool rest, 11 parts of a connecting plate, 1101 parts of a guide plate 1102 parts of an electric conveying belt.

Detailed Description

In order to make the technical problems solved by the invention, the technical scheme adopted and the technical effects achieved clearer, the invention is further described in detail below with reference to the accompanying drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present invention are shown in the accompanying drawings.

Referring to fig. 1-6, the injection molding device for the automobile accessory provided by the invention comprises a rack 1, a guide rod 2, a movable seat 3, a movable mold 30, a support 32, a first cylinder 33, a fixed seat 4, a fixed mold 40, a feed pipe 5, an injection molding structure, a jacking structure and a cutter, wherein the guide rod 2 is arranged on the right side of the top of the rack 1, the movable seat 3 is slidably arranged on the guide rod 2, the first cylinder 33 is arranged on the right side edge of the rack 1 through the support 32, the first cylinder 33 is in driving connection with the movable seat 3, the movable mold 30 is arranged on the movable seat 3, the fixed seat 4 is provided with a fixed seat 4, the fixed mold 40 matched and buckled with the movable mold 30 is arranged on the fixed seat 4, the movable mold 30 and the fixed mold 40 are closed to form an injection molding cavity 401 for shaping the accessory a, an injection molding structure is arranged between the fixed mold surfaces of the movable mold 30 and the fixed mold 40, the injection molding structure is convenient for controlling the injection molding quantity of materials in real time through an adjustable injection molding angle, the injection molding structure comprises an adjustor, an injection molding pipe 50 and a bulge 31, the injection molding pipe 50 is rotationally connected to the middle part of the fixed mold 40, the injection molding pipe 50 is communicated with the feed pipe 5 through a rotary joint, the inner end of the injection molding pipe 50 is in the injection molding pipe 50 and the feed pipe 5 through a rotary joint, the rotary joint is in a rotary joint 50, the injection molding cavity is provided with a sealing port 41 corresponding to the injection molding port 41 arranged on the movable mold 40, and is provided with a sealing port 41, and is in a sealing port 41 and is formed by the sealing port 41; and the communication ends of the injection molding channel 41 and the injection molding cavity 401 are respectively provided with a narrowing opening 42 with a tapered section, so that the flow velocity of the molten material can be accelerated, the injection molding machine is characterized in that a fixed mold 40 is further internally provided with a material ejection structure, the fixed mold 40 is internally provided with a material ejection structure, the material ejection structure is controlled to extend out of a fitting a for ejection injection molding, a material cutter is further arranged at the bottom of a movable seat 3, and the material cutter can synchronously move along with the movable seat 3 to synchronously cut off the residual waste b on the fitting a, so that the cut waste b is recycled, and the efficiency and the utilization rate of waste cutting are improved.

Still further, referring to fig. 4 and 5, the regulator includes a regulating gear 6 sleeved on the outer periphery of the injection tube 50, a servo motor 60 fixed on the inner side of the fixed seat 4, and a driving gear 61 disposed on the output shaft of the servo motor 60 and meshed with the regulating gear 6, and the driving gear 61 and the regulating gear 6 are controlled to rotate by the servo motor 60 so as to control and regulate the circumferential rotation angle of the injection tube 50, so that the injection molding material is controlled in real time, and further the quality of the molding of the fitting a is improved.

Still further, referring to fig. 4 and 5, the ejection structure comprises an ejection frame 7, ejection pins 70 and a second cylinder 71, wherein the ejection frame 7 is slidably arranged in an inner cavity of the fixed seat 4, the ejection pins 70 are distributed on the ejection frame 7 at intervals, the ejection pins 70 slidably penetrate through the fixed mold 40 and the end parts of the ejection pins are flush with the bottom surface of the injection molding cavity 401, the second cylinder 71 for controlling the ejection frame 7 and the ejection pins 70 to move and stretch and adjust is arranged in the fixed seat 4, the ejection stress of the accessory a is favorably dispersed through the synchronous ejection of the array ejection pins 70, the deformation or surface scratch of a formed accessory a product is prevented, and the end parts of the ejection pins 70 are flush with the bottom surface of the cavity, so that the residual protrusions 31 can be effectively prevented from affecting the product quality of the formed accessory a.

Still further, referring to fig. 3 and 6, the cutter comprises a connecting seat 10 and a cutter rest 101, the connecting seat 10 is arranged at the bottom of the movable seat 3, the cutter rest 101 is arranged on the connecting seat 10, when the movable seat 3 is clamped towards the direction of the fixed die 40, the cutter rest 101 moves along with and synchronously cuts off the waste b on the clamped and fixed accessory a, and the cutter rest 101 is horizontally arranged opposite to the clamping arm 81, so that the accurate cutting off of the residual waste b on the molded accessory a is facilitated.

Still further, referring to fig. 1, 6 and 7, the clamping mechanism further comprises a clamping mechanism, the clamping mechanism comprises a guide rail 8, an electric bidirectional screw rod 80, clamping arms 81 and clamping blocks 82, the middle part of the rack 1 is provided with the guide rail 8, the electric bidirectional screw rod 80 is installed in the guide rail 8, the two clamping arms 81 are in sliding sleeve connection in the guide rail 8 and are respectively in threaded fit with the electric bidirectional screw rod 80, and the tail ends of the clamping arms 81 are provided with the clamping blocks 82 with anti-skid patterns for clamping and fixing the accessory a.

Still further, see fig. 1 and 9, still include automatic reposition of redundant personnel subassembly, automatic reposition of redundant personnel subassembly includes connecting plate 11, guide plate 1101 and electric conveyer belt 1102, rack 1 bottom is equipped with connecting plate 11, connecting plate 11 downside is connected with guide plate 1101, be equipped with the electric conveyer belt 1102 that is used for letter sorting conveying finished product accessory a and waste material b between guide plate 1101 both sides and the connecting plate 11 respectively, guide plate 1101 adopts the design of falling V type structure, be favorable to accessory a and the automatic electric conveyer belt 1102 that falls to the left and right sides of excision waste material b through falling V type guide plate 1101, can realize convenient accessory a and waste material b of finished product and carry out automatic sorting, be favorable to reducing the manual intervention cost, further improve the automation level of this device, and then can effectively promote the efficiency to accessory a injection moulding.

Still further, referring to fig. 1 and 8, the intelligent material taking manipulator further comprises an intelligent material taking manipulator, wherein the intelligent material taking manipulator comprises a horizontal electric sliding rail 9, a vertical electric sliding rail 90, a connecting arm 91 and an electric sucking disc 92, the horizontal electric sliding rail 9 is arranged at the top of the support 32, the vertical electric sliding rail 90 is installed on a sliding block of the intelligent material taking manipulator, the electric sucking disc 92 for taking materials is connected to the sliding block of the vertical electric sliding rail 90 through the connecting arm 91, and the formed and ejected accessory a can be adsorbed, taken out and downwards transferred into a designated cutting area through the cooperation of the horizontal electric sliding rail 9, the vertical electric sliding rail 90 and the electric sucking disc 92.

In addition, referring to fig. 1 to 9, a PLC controller 320 is further mounted on the support 32, and the PLC controller 320 is electrically connected with the first cylinder 33, the servo motor 60, the second cylinder 71, the electric bidirectional screw rod 80, the horizontal electric sliding rail 9, the vertical electric sliding rail 90, the electric sucking disc 92 and the electric conveying belt 1102 respectively.

When the injection molding device is used, the first cylinder 33 is controlled by the PLC 320 to drive the movable seat 3 to slide along the guide rod 2 so as to drive the movable die 30 and the fixed die 40 to be closed to form a sealed injection molding cavity 401, and the PLC 320 is controlled by the servo motor 60 to be meshed with the adjusting gear 6 through the driving gear 61 so as to control the injection molding pipe 50 to rotate to a preset angle, so that the injection port 51 is aligned with the injection molding channel 41; the molten material is injected into the injection channel 41 through the injection pipe 50 and the injection port 51 through the feed pipe 5 and is uniformly filled into the injection cavity 401 through the narrow opening 42 to form a fitting a, after the injection molded fitting a is cooled and solidified, the PLC controller 320 controls the first cylinder 33 to retract to drive the movable die 30 to be separated from the fixed die 40, the PLC controller 320 controls the second cylinder 71 to push the ejector rack 7 to move forward, the ejector pins 70 synchronously eject the molded fitting a to avoid deformation or damage caused by local stress, meanwhile, the PLC controller 320 controls the horizontal electric slide rail 9 and the vertical electric slide rail 90 to cooperatively drive the electric sucking disc 92 to be positioned above a finished product and downwards to a preset clamping area after the molded fitting a is adsorbed, the PLC controller 320 controls the clamping block 82 driven by the electric bidirectional screw 80 to adaptively clamp the fitting a, the anti-skid design ensures that the fitting a is clamped firmly, then the PLC controller 320 controls the horizontal electric slide rail 9 and the vertical electric slide rail 90 to move upwards to reset, when the PLC controller 320 controls the first cylinder 33 to drive the movable die 30 on the movable seat 3 to move upwards to synchronously cut off the movable die 30 and the fixed die 40, the residual waste material in the channel 101 b is removed after the cut off the movable die 30 a is synchronously, the residual waste material in the channel is easily removed, the automatic production process is characterized in that the cutting device is also beneficial to reducing the process interval time, cut waste b automatically slides onto the left electric conveying belt 1102 through the inverted V-shaped guide plate 1101 for recycling after collecting the waste b, and when the PLC 320 controls the bidirectional screw rod driving clamping blocks 82 to open mutually, finished accessories a after cutting the waste b automatically fall onto the right electric conveying belt 1102 of the inverted V-shaped guide plate 1101 for conveying and conveying the finished accessories a, so that the full-flow automatic production process of the accessories a can be completed. This device can carry out intelligent automatic injection moulding to the accessory and automatic batch excision to the waste material through the PLC controller, and then is favorable to promoting efficiency and quality to accessory injection moulding, avoids cutting residual waste material on the accessory through the manual work.

The technical principles of the embodiments of the present invention are described above in connection with specific embodiments. The description is only intended to explain the principles of the embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will recognize other embodiments of the present invention without undue burden, and those ways that are within the scope of the present invention.

Claims

1. The injection molding device for the automobile parts comprises a movable seat (3), a movable mold (30), a fixed seat (4), a fixed mold (40) and a feed pipe (5), wherein the movable mold (30) is connected to a support (32) through a first cylinder (33), the fixed seat (4) is provided with the fixed mold (40) matched with the movable mold (30), the movable mold (30) and the fixed mold (40) are closed to form an injection molding cavity (401), the injection molding device is characterized by further comprising an injection molding structure, a jacking structure and a cutter, an injection molding structure for molding the parts (a) is arranged between the clamping faces of the movable mold (30) and the fixed mold (40), the injection molding structure comprises a regulator, an injection molding pipe (50) and a bulge (31), the injection molding pipe (50) is rotationally connected to the middle part of the fixed mold (40), the outer end of the injection molding pipe (50) is communicated with the feed pipe (5) through a rotary joint, the regulator for finely regulating the rotation angle of the injection molding pipe (50) is arranged in the fixed mold (40), the inner end of the injection molding pipe (50) is provided with a plurality of injection molding ports (51) at intervals along the circumferential direction, the injection molding surfaces of the fixed mold (40) are provided with injection molding channels (41) corresponding to the injection molding channels (41) arranged on the fixed mold (40), the fixed die (40) is internally provided with a jacking structure for jacking a formed accessory (a), the bottom of the movable seat (3) is further provided with a cutting device for synchronously cutting off residual scraps (b) left on the accessory (a), the regulator comprises a regulating gear (6) sleeved on the periphery of the injection molding pipe (50), a servo motor (60) fixed on the inner side of the fixed seat (4), and a driving gear (61) arranged on an output shaft of the servo motor (60) and meshed with the regulating gear (6), the driving gear (61) and the regulating gear (6) are controlled to rotate by the servo motor (60) so as to control and regulate the circumferential rotation angle of the injection molding pipe (50), the jacking structure comprises a jacking frame (7), a thimble (70) and a cylinder second (71), the jacking frame (7) is slidably arranged in an inner cavity of the fixed seat (4), the jacking frame (7) is distributed with a thimble (70) at intervals, the thimble (70) slidably penetrates through the fixed die (40) and the bottom surface of the injection molding cavity (401), a telescopic regulator (71) for controlling the jacking frame (7) and the movement of the regulating gear (6) is arranged in the fixed seat (4), the connecting seat (10) comprises a thimble frame (10) and a connecting seat (101) and a connecting seat (10) arranged on the bottom of the cutting seat (10), when the movable seat (3) is clamped towards the fixed mold (40), the blanking knife rest (101) moves along and synchronously cuts off the waste (b) on the clamping and fixing accessory (a), and the communication ends of the injection molding channel (41) and the injection molding cavity (401) are respectively provided with a narrowing opening (42) with a tapered section.

2. The injection molding device for the automobile accessories according to claim 1, further comprising a clamping mechanism, wherein the clamping mechanism comprises a guide rail (8), an electric bidirectional screw rod (80), clamping arms (81) and clamping blocks (82), the guide rail (8) is arranged in the middle of the bench (1), the electric bidirectional screw rod (80) is installed in the guide rail (8), the two clamping arms (81) are sleeved in the guide rail (8) in a sliding manner and are respectively in threaded fit with the electric bidirectional screw rod (80), and the clamping blocks (82) with anti-skidding patterns are arranged at the tail ends of the clamping arms (81) and used for clamping and fixing the accessories (a).

3. An auto-parts injection moulding apparatus according to claim 1, characterized in that the blanking tool holder (101) is arranged horizontally opposite the clamping arm (81).

4. The auto-parts injection molding device of claim 1, characterized in that the auto-parts injection molding device further comprises an automatic flow distribution assembly, wherein the automatic flow distribution assembly comprises a connecting plate (11), a guide plate (1101) and an electric conveying belt (1102), the connecting plate (11) is arranged at the bottom of the bench (1), the guide plate (1101) is connected to the lower side of the connecting plate (11), and the electric conveying belt (1102) used for sorting and conveying finished-product accessories (a) and waste materials (b) is respectively arranged between two sides of the guide plate (1101) and the connecting plate (11).

5. An injection molding device for automotive parts according to claim 4, characterized in that the deflector (1101) is of inverted V-shaped design for automatically guiding the finished parts (a) and cut scrap (b) onto the electric conveyor belt (1102) respectively.

6. The injection molding device for the automobile accessories according to claim 1, further comprising an intelligent material taking manipulator, wherein the intelligent material taking manipulator comprises a horizontal electric sliding rail (9), a vertical electric sliding rail (90), a connecting arm (91) and an electric sucking disc (92), the horizontal electric sliding rail (9) is arranged at the top of the support (32), the vertical electric sliding rail (90) is arranged on a sliding block of the horizontal electric sliding rail, and the electric sucking disc (92) for taking materials is connected to the sliding block of the vertical electric sliding rail (90) through the connecting arm (91).