A device for removing sprue from an injection molded part of an automobile

Abstract

The utility model discloses a kind of automobile injection molding part gate removal devices, it is related to injection molding part processing technical field, including cutting part and bearing mould, the cutting part is fixedly arranged on sliding sleeve, the sliding sleeve is slidably arranged on outer spline shaft, rotating plate is rotatably arranged on the sliding sleeve, the rotating plate is fixedly arranged on the first electric cylinder output end, clamping mechanism is evenly arranged in the bearing mould, fixed mechanism is arranged on the support pipe top.The utility model sets up several bearing moulds on mounting disc, and cutting part and polishing part are set on sliding sleeve, so that it is convenient to continuously cut and remove gate material on different injection molding parts, and by fixed mechanism, clamping rod can be fixed to gate material, prevent injection molding part from being deformed when gate material is removed, simultaneously by setting polishing part and dust collection head, so that it is convenient to polish after removing gate material.

Description

Technical Field

[0001] This utility model relates to the field of injection molding part processing technology, specifically a gate removal device for automotive injection molded parts. Background Technology

[0002] In the automotive manufacturing industry, a large number of parts are produced using injection molding. During injection molding, molten plastic fills the mold cavity through the mold's gating system, and the narrow channel connecting the cavity and the main runner is called the gate. After the plastic cools and solidifies, excess material connected to the gate inevitably remains on the injection-molded part. This gate material must be removed in subsequent processes. If the gate material is not effectively removed, it will affect assembly accuracy and functionality, and also damage the appearance quality. Especially in directly visible areas such as automotive interiors and exteriors, residual gate material or trimming marks will damage the smoothness and flatness of the product surface, reducing the overall aesthetics and perceived quality, and failing to meet the stringent appearance standards of the automotive industry.

[0003] Currently, the mainstream technology for removing gates in automotive injection molded parts is mechanical cutting. A typical operation involves positioning and fixing the injection molded part using a fixture, then using a stamping die to cut along the gate connection, separating the excess material. However, at the moment the cutting blade acts on the gate material, the injection molded part itself, especially the area near the gate, is subjected to a significant instantaneous impact or shear force. This external force easily causes elastic or plastic deformation of the injection molded part near the cutting point. This deformation causes a deviation between the preset cutting path and the actual material position, directly resulting in poor cut surface quality, manifested as uneven cuts, burrs, flash, or even localized tears or dents. Such uneven cuts not only severely affect the product's appearance, leaving obvious machining marks, but may also damage the local structural integrity of the gate area, causing it to become a stress concentration point or dimensional deviation, affecting the assembly performance, long-term reliability, and the uniformity of the final product quality.

[0004] Based on this, a gate removal device for automotive injection molded parts is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide a gate removal device for automotive injection molded parts, so as to solve the problem of inconvenience in removing injection mold gates in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gate removal device for automotive injection molded parts includes a cutting component and a supporting mold. The cutting component is fixedly mounted on a sliding sleeve, which is slidably mounted on an external spline shaft. One end of the external spline shaft is rotatably mounted on the upper end of an operating table, and the other end is rotatably mounted in a mounting hole on the upper inner side of a protective cover. The protective cover is fixedly mounted on the upper end of the operating table. A rotating plate is rotatably mounted on the sliding sleeve, and the rotating plate is fixedly mounted on the output end of a first electric cylinder. Connecting rods are fixedly mounted on one side of the supporting mold, and several connecting rods are arranged in an equally spaced array on a mounting plate. A rotating shaft at the bottom of the mounting plate is rotatably mounted in a mounting hole on the upper end of the operating table. The supporting mold is equipped with a clamping mechanism for clamping and fixing the injection molded part. A support tube is fixedly mounted on the upper end of the operating table and at the processing area of ​​the cutting component, and a fixing mechanism for fixing the gate material is provided above the support tube.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: one end of the external spline shaft is fixedly connected to the output end of the first motor, the first motor is fixedly mounted on the upper end of the protective cover, the first electric cylinder is installed in the mounting hole on the upper end of the protective cover, one end of the rotating shaft is fixedly connected to the output end of the second motor, the second motor is fixedly mounted on the bottom end of the operating table, the cutting component, the first electric cylinder, the first motor and the second motor are all electrically connected to the control component, and the control component is fixedly mounted on the upper end of the protective cover.

[0010] In one alternative embodiment: the clamping mechanism includes clamping plates, each of which is slidably mounted inside the bearing mold. A push rod is fixedly mounted on one side of each clamping plate, and the push rod is slidably mounted within a sliding hole inside a connecting rod. An extension plate is fixedly mounted on the other end of each connecting rod, and a fixing post is fixedly mounted on one end of each extension plate. A guide plate is attached to one of the fixing posts, and the guide plate is fixedly mounted on one end of a fixing frame. The fixing frame is fixedly mounted on the output end of a second electric cylinder, and the second electric cylinder is fixedly mounted on the bottom end of the operating table. A fixing disc is fixedly mounted on each push rod, and a limiting groove is provided inside the connecting rod at a position corresponding to the fixed disc. A return spring is provided between one side of the fixed disc and one end of the limiting groove.

[0011] In one alternative embodiment: the fixing mechanism includes two symmetrically arranged clamping rods, each clamping rod having a threaded plate fixedly attached to one end, and each threaded plate having a threaded hole on one side. Both threaded plates are fitted onto a bidirectional screw, which is rotatably mounted inside an installation tube. One end of the bidirectional screw is fixedly connected to the output end of a third motor, and the third motor is fixedly mounted at one end of the installation tube. A first fixing plate is fixedly mounted on one side of the installation tube, and a first telescopic rod is fixedly mounted on the upper end of the first fixing plate. A limiting plate is fixedly mounted on the output end of the first telescopic rod, and the limiting plate is slidably mounted in a guide groove on the upper end of a second fixing plate. The second fixing plate is fixedly mounted on one side of a protective cover, and the limiting plate is fixedly mounted on the output end of a third electric cylinder. The third electric cylinder is fixedly mounted on the upper end of the second fixing plate. A second telescopic rod is fixedly mounted on one side of the first telescopic rod, and the output end of the second telescopic rod is fixedly connected to a rotating plate.

[0012] In one alternative: each of the connecting rods is fixedly provided with a support rod at one end, and each of the support rods is provided with a ball bearing at one end, and the ball bearing is in close contact with the upper end of the operating table.

[0013] In one alternative: a grinding component is fixedly provided on the sliding sleeve, the grinding component and the cutting component are installed at a 90-degree difference in position, the grinding component is electrically connected to the control component, and a slag suction component for adsorbing grinding residue is provided below the first fixed plate.

[0014] In one alternative: the dust suction assembly includes a dust suction head, which is fixedly mounted on the bottom end of the first fixed plate. The dust suction head is located on one side of the clamping rod. The input end of the dust suction head is connected to a conveying hose, and the other end of the conveying hose is connected to the input end of an external dust suction component.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention features several bearing molds on a mounting plate and a cutting and grinding component on a sliding sleeve. This facilitates the continuous cutting and removal of gate material from different injection molded parts. A fixing mechanism ensures that the gate material is held in place by a clamping rod while the cutting component removes it, preventing deformation of the injection molded part during removal. Furthermore, the inclusion of a grinding component and a dust extraction head allows for grinding after gate material removal, thus increasing the practicality of the gate removal device for automotive injection molded parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the installation of the second electric cylinder of this utility model.

[0019] Figure 3 This is a schematic diagram of the guide plate structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the clamping rod structure of this utility model.

[0021] Figure reference numerals: 11 Cutting component, 12 Grinding component, 13 Sliding sleeve, 14 External spline shaft, 15 First electric cylinder, 16 First electric motor, 17 Control component, 18 Protective cover, 19 Operating table, 20 Bearing mold, 21 Connecting rod, 22 Second electric motor, 23 Clamping plate, 24 Push rod, 25 Return spring, 26 Guide plate, 27 Second electric cylinder, 28 Support rod, 29 Clamping rod, 30 Bidirectional screw, 31 Third electric motor, 32 First telescopic rod, 33 Second telescopic rod, 34 Third electric cylinder, 35 Dust suction head. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] Example 1

[0024] In one embodiment, such as Figures 1-4 As shown, a gate removal device for automotive injection molded parts includes a cutting component 11 and a supporting mold 20. The cutting component 11 is fixedly mounted on a sliding sleeve 13, which is slidably mounted on an external spline shaft 14. One end of the external spline shaft 14 is rotatably mounted on the upper end of an operating table 19, and the other end is rotatably mounted in a mounting hole on the upper inner side of a protective cover 18. The protective cover 18 is fixedly mounted on the upper end of the operating table 19. A rotating plate is rotatably mounted on the sliding sleeve 13, and the rotating plate is fixedly mounted on the output end of a first electric cylinder 15. The supporting mold 20... Each side is fixed with a connecting rod 21, and several connecting rods 21 are arranged in an equally spaced array on the mounting plate. The bottom rotating shaft of the mounting plate is rotatably mounted in the mounting hole at the top of the operating table 19. Each of the bearing molds 20 is provided with a clamping mechanism for clamping and fixing the injection molded part. The upper end of the operating table 19 is fixed with a support tube at the processing part of the cutting component 11. A fixing mechanism for fixing the sprue material is provided above the support tube. The clamping mechanism facilitates the clamping and fixing of the injection molded part, and the fixing mechanism facilitates the fixing of the sprue material when it is cut off.

[0025] One end of the external spline shaft 14 is fixedly connected to the output end of the first motor 16, which is fixedly mounted on the upper end of the protective cover 18. The first electric cylinder 15 is installed in the mounting hole on the upper end of the protective cover 18. One end of the rotating shaft is fixedly connected to the output end of the second motor 22, which is fixedly mounted on the bottom end of the operating table 19. The cutting component 11, the first electric cylinder 15, the first motor 16, and the second motor 22 are all electrically connected to the control component 17, which is fixedly mounted on the upper end of the protective cover 18. In use, when it is necessary to remove the sprue material, the injection molded part is placed inside the carrier mold 20. Then, the second motor 22 drives the rotating plate to rotate intermittently by 90 degrees, so that several carrier molds 20 rotate one by one to the top of the support tube. After the carrier mold 20 drives the injection molded part to rotate to the top of the support tube, the first motor 16 drives the cutting component 11 to rotate through the external spline shaft 14 and the sliding sleeve 13. When the cutting component 11 rotates to the sprue material position, the working end of the cutting component 11 can cut off the sprue material.

[0026] The clamping mechanism includes clamping plates 23. Clamping plates 23 are slidably disposed inside the bearing mold 20. Push rods 24 are fixedly disposed on one side of each clamping plate 23, and the push rods 24 are slidably disposed within sliding holes inside connecting rods 21. Extension plates are fixedly disposed at the other end of each connecting rod 21, and fixing posts are fixedly disposed at one end of each extension plate. A guide plate 26 is tightly attached to one of the fixing posts. The guide plate 26 is fixedly disposed at one end of a fixing frame. The fixing frame is fixedly disposed at the output end of a second electric cylinder 27. The second electric cylinder 27 is fixedly disposed at the bottom end of the operating table 19. Fixing discs are fixedly disposed on each push rod 24. Limiting grooves are provided inside the connecting rod 21 at positions corresponding to the fixing discs. A return spring 25 is provided between one side of the fixed plate and one end of the limiting groove. In use, before the molded part is rotated above the support tube by the mold 20, the fixed column is first pressed against one end of the guide plate 26. One end of the guide plate 26 is inclined so that the guide plate 26 guides the fixed column. The fixed column drives the push rod 24 to slide inside the connecting rod 21 through the extension plate. The push rod 24 drives the clamping plate 23 to slide, so that the clamping plate 23 clamps and fixes the injection molded part. When it is necessary to adjust the clamping distance of the clamping plate 23, the second electric cylinder 27 is controlled by the control component 17. The output end of the second electric cylinder 27 drives the guide plate 26 to move through the fixed frame, thereby adjusting the initial position of the guide plate 26.

[0027] The fixing mechanism includes two symmetrically arranged clamping rods 29. Each clamping rod 29 has a threaded plate fixed to one end, and each threaded plate has a threaded hole on one side. Both threaded plates are fitted onto a bidirectional screw 30, which is rotatably mounted inside a mounting tube. One end of the bidirectional screw 30 is fixedly connected to the output end of a third motor 31. The third motor 31 is fixedly mounted on one end of the mounting tube. A first fixing plate is fixedly mounted on one side of the mounting tube. A first telescopic rod 32 is fixedly mounted on the upper end of the first fixing plate. A limiting plate is fixedly mounted on the output end of the first telescopic rod 32. The limiting plate slides within a guide groove on the upper end of a second fixing plate. The second fixing plate is fixedly mounted on one side of the protective cover 18. The limiting plate is fixedly mounted on the output end of a third electric cylinder 34. The third electric cylinder 34 is fixedly mounted on the upper end of the second fixing plate. A second telescopic rod 33 is fixedly mounted on one side of the first telescopic rod 32. The output end of the third electric cylinder 34 is fixedly connected to the rotating plate. In use, before the cutting component 11 cuts off the sprue material, the output end of the third electric cylinder 34 drives the first telescopic rod 32 to move. The first telescopic rod 32 drives the mounting tube to move, so that the two clamping rods 29 are located at the sprue material position. Then, the control component 17 controls the third motor 31 to start. The output end of the third motor 31 drives the bidirectional screw 30 to rotate. The bidirectional screw 30 drives the two threaded plates to slide inside the mounting tube in opposite directions, thereby clamping and fixing the sprue material with the two clamping rods 29. Then, the cutting component 11 cuts off the sprue material. After the cutting component 11 moves away from the top of the bearing mold 20, the second motor 22 drives several bearing molds 20 to rotate. After the bearing molds 20 move away from the top of the support tube, the bidirectional screw 30 rotates in the opposite direction, so that the sprue material falls and is discharged through the support tube. The output end of the third electric cylinder 34 drives the clamping rods 29 back to the initial position.

[0028] Each of the connecting rods 21 has a support rod 28 fixedly installed at one end, and each of the support rods 28 has a ball bearing at one end. The ball bearing is in close contact with the upper end of the operating table 19, which facilitates auxiliary support for one end of the connecting rod 21 during use.

[0029] Example 2

[0030] The difference from Embodiment 1 is that: a grinding component 12 is fixedly provided on the sliding sleeve 13, the grinding component 12 and the cutting component 11 are installed at different positions by 90 degrees, the grinding component 12 is electrically connected to the control component 17, and a slag suction component for adsorbing grinding residue is provided below the first fixed plate.

[0031] The slag suction assembly includes a suction head 35, which is fixedly mounted on the bottom of the first fixed plate. The suction head 35 is located on one side of the clamping rod 29. The input end of the suction head 35 is connected to a conveying hose, and the other end of the conveying hose is connected to the input end of the external suction component. In use, after the cutting component 11 finishes cutting the injection molded sprue, the external spline shaft 14 continues to rotate, causing the sliding sleeve 13 to drive the grinding component 12 to rotate. After the grinding component 12 rotates to the cutting position, the grinding component 12 grinds the cutting position. At the same time, the external suction component works, and the external suction component adsorbs the impurities generated during grinding through the suction head 35.

[0032] The above embodiment discloses a gate removal device for automotive injection molded parts. When gate material needs to be removed, the injection molded part is placed inside the carrier mold 20. Then, the second motor 22 drives the rotating plate to rotate intermittently by 90 degrees. Before the carrier mold 20 rotates the injection molded part above the support tube, the fixing post is first tightly attached to one end of the guide plate 26. One end of the guide plate 26 is inclined, allowing the guide plate 26 to guide the fixing post. The fixing post drives the push rod 24 to slide inside the connecting rod 21 via the extension plate. The push rod 24 drives the clamping plate 23 to slide, allowing the clamping plate 23 to clamp and fix the injection molded part. After the carrier mold 20 rotates the injection molded part above the support tube, the output end of the third electric cylinder 34 drives the first telescopic rod 32 to move. The first telescopic rod 32 drives the mounting tube to move, so that the two clamping rods 29 are located at the gate material position. Then, the control component 17 controls the third motor 31 to start. The output end of the third motor 31 drives the bidirectional screw 30 to rotate. The bidirectional screw 30 drives the two screws... The textured plate slides inside the mounting tube in opposite directions, thereby clamping and fixing the sprue material with the two clamping rods 29. The first motor 16 drives the cutting component 11 to rotate through the external spline shaft 14 and the sliding sleeve 13. When the cutting component 11 rotates to the sprue material position, the working end of the cutting component 11 can cut off the sprue material. After the cutting component 11 has finished cutting the injection molding sprue material, the external spline shaft 14 continues to rotate, causing the sliding sleeve 13 to drive the grinding component 12 to rotate. After the grinding component 12 rotates to the cutting position, the grinding component 12 grinds the cutting position. At the same time, the external dust collection component works, and the external dust collection component uses the dust collection head 35 to absorb the impurities generated during grinding. After the grinding component 12 moves away from the top of the bearing mold 20, the second motor 22 drives several bearing molds 20 to rotate. After the bearing molds 20 move away from the top of the support tube, the bidirectional screw 30 rotates in the opposite direction, causing the sprue material to fall and be discharged through the support tube. The output end of the third electric cylinder 34 drives the clamping rod 29 back to the initial position.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A gate removal device for automotive injection molded parts, comprising a cutting component (11) and a supporting mold (20), wherein the cutting component (11) is fixedly mounted on a sliding sleeve (13), the sliding sleeve (13) is slidably mounted on an external spline shaft (14), one end of the external spline shaft (14) is rotatably mounted on the upper end of an operating table (19), and the other end of the external spline shaft (14) is rotatably mounted in a mounting hole on the upper inner side of a protective cover (18), the protective cover (18) is fixedly mounted on the upper end of the operating table (19), and a rotating plate is rotatably mounted on the sliding sleeve (13), the rotating plate being fixedly mounted on the output end of a first electric cylinder (15), characterized in that, Each of the bearing molds (20) is fixedly provided with a connecting rod (21) on one side. Several connecting rods (21) are arranged in an equally spaced array on the mounting plate. The bottom rotating shaft of the mounting plate is rotatably located in the mounting hole at the top of the operating table (19). Each of the bearing molds (20) is provided with a clamping mechanism for clamping and fixing the injection molded parts. The upper end of the operating table (19) is fixedly provided with a support tube at the processing part of the cutting component (11). A fixing mechanism for fixing the sprue material is provided above the support tube.

2. The gate removal device for automotive injection molded parts according to claim 1, characterized in that, One end of the external spline shaft (14) is fixedly connected to the output end of the first motor (16), the first motor (16) is fixedly mounted on the upper end of the protective cover (18), the first electric cylinder (15) is installed in the mounting hole on the upper end of the protective cover (18), one end of the rotating shaft is fixedly connected to the output end of the second motor (22), the second motor (22) is fixedly mounted on the bottom end of the operating table (19), the cutting component (11), the first electric cylinder (15), the first motor (16) and the second motor (22) are all electrically connected to the control component (17), the control component (17) is fixedly mounted on the upper end of the protective cover (18).

3. The gate removal device for automotive injection molded parts according to claim 2, characterized in that, The clamping mechanism includes a clamping plate (23). The clamping plate (23) is slidably provided inside the bearing mold (20). A push rod (24) is fixedly provided on one side of the clamping plate (23). The push rod (24) is slidably provided in the sliding hole inside the connecting rod (21). An extension plate is fixedly provided at the other end of the connecting rod (21). A fixed post is fixedly provided at one end of the extension plate. A guide plate (26) is closely attached to one of the fixed posts. The guide plate (26) is fixedly provided at one end of the fixed frame. The fixed frame is fixedly provided at the output end of the second electric cylinder (27). The second electric cylinder (27) is fixedly provided at the bottom end of the operating table (19). A fixed plate is fixedly provided on the push rod (24). A limiting groove is provided inside the connecting rod (21) at the position corresponding to the fixed plate. A return spring (25) is provided between one side of the fixed plate and one end of the limiting groove.

4. The gate removal device for automotive injection molded parts according to claim 2, characterized in that, The fixing mechanism includes two symmetrically arranged clamping rods (29). One end of each clamping rod (29) is fixedly provided with a threaded plate. One side of each threaded plate is provided with a threaded hole. Both threaded plates are fitted onto a bidirectional screw (30). The bidirectional screw (30) is rotatably mounted inside the mounting tube. One end of the bidirectional screw (30) is fixedly connected to the output end of a third motor (31). The third motor (31) is fixedly mounted on one end of the mounting tube. A first fixing plate is fixedly mounted on one side of the mounting tube. A first telescopic rod (32) is fixedly mounted on the upper end of the first fixing plate. A limiting plate is fixedly mounted on the output end of the first telescopic rod (32). The limiting plate is slidably mounted in the guide groove at the upper end of the second fixing plate. The second fixing plate is fixedly mounted on one side of the protective cover (18). The limiting plate is fixedly mounted on the output end of a third electric cylinder (34). The third electric cylinder (34) is fixedly mounted on the upper end of the second fixing plate. A second telescopic rod (33) is fixedly mounted on one side of the first telescopic rod (32). The output end of the second telescopic rod (33) is fixedly connected to a rotating plate.

5. The gate removal device for automotive injection molded parts according to claim 4, characterized in that, One end of each connecting rod (21) is fixedly provided with a support rod (28), and one end of each support rod (28) is provided with a ball bearing. The ball bearing is in close contact with the upper end of the operating table (19).

6. The gate removal device for automotive injection molded parts according to claim 4, characterized in that, A grinding component (12) is fixedly provided on the sliding sleeve (13). The grinding component (12) and the cutting component (11) are installed at different positions by 90 degrees. The grinding component (12) is electrically connected to the control component (17). A slag suction assembly for adsorbing grinding residue is provided below the first fixed plate.

7. The gate removal device for automotive injection molded parts according to claim 6, characterized in that, The dust suction assembly includes a dust suction head (35), which is fixedly mounted on the bottom of the first fixed plate. The dust suction head (35) is located on one side of the clamping rod (29). The input end of the dust suction head (35) is connected to a conveying hose, and the other end of the conveying hose is connected to the input end of an external dust suction component.

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