Three-color demolding mechanism for independent core pulling of internally-buckled insert

Abstract

The invention discloses a three-color demolding mechanism for independent core pulling of an inner buckle insert, and particularly relates to the technical field of injection molding demolding, the three-color demolding mechanism comprises an injection molding demolding table, a support, a sliding frame and a linkage injection inner buckle molding demolding mechanism; the linkage injection inner buckle forming demolding mechanism comprises a linkage screw rod, a transmission motor, two sleeve blocks, a demolding strip, a linkage rod, a sliding sleeve block, a supporting block, a plurality of inner buckle columns, a distance sensor, a plurality of inner buckle columns and a demolding box, and further comprises a main face injection forming demolding mechanism and a three-color injection forming assembly. The linkage injection inner buckle forming demolding mechanism has the advantages that the multiple inner buckle columns can achieve separation operation from the demolding inner buckle position in the demolding box, synchronous multi-direction embedded injection forming demolding can be conducted during demolding, and the demolding efficiency is greatly improved; therefore, the problems that synchronous multi-direction embedded injection molding demolding is difficult to carry out, and the demolding efficiency is greatly reduced are solved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding demoulding, and more specifically to a three-color demoulding mechanism for independently pulling out the core of an inner buckle insert. Background Art

[0002] Through precise design and manufacturing technology, this mechanism can complete the injection molding of three different colors in one injection molding process. This is due to the multiple injection channels and switching mechanisms set inside the mold, which ensure that plastic materials of different colors can be mixed and injected into the mold in the set proportion and order, thereby producing plastic products with multiple colors and textures.

[0003] In the existing public documents, the patent announcement number CN106903836A discloses an injection molding machine with no waste demoulding. This technology mainly uses a lifting mechanism on the frame to drive the upper template to rise or fall, a driving mechanism to drive the template to slide horizontally, and a heating mechanism to heat the template. The beneficial effects of this invention are mainly reflected in: simple and sophisticated structure, full-process automated control, which not only saves material costs and improves product quality, but also greatly improves product efficiency. However, this patent has the following defects; The three-color demoulding technology for individually pulling out the core of the inner buckle insert mainly realizes the injection molding operation by injecting different mixed colors of injection plastics into the designated cavity through high-temperature liquid of the injection plastics. The demoulding operation is required during the injection process, but it is difficult to perform synchronous multi-directional embedded injection molding demoulding during demoulding, and the demoulding efficiency is greatly reduced. Therefore, a three-color demoulding mechanism for individually pulling out the core of the inner buckle insert is required. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a three-color demolding mechanism for independently pulling out the core of an inner buckle insert, comprising an injection demolding table, a bracket and a slide frame, the bracket being fixed on one side of the injection demolding table, the slide frame being fixedly connected to one side of the bracket, and a linkage injection inner buckle molding demolding mechanism being installed inside the slide frame; the linkage injection inner buckle molding demolding mechanism comprises a linkage screw rotatably arranged inside the slide frame, the outer wall of the linkage screw has two threads that are opposite and symmetrically opened, a transmission motor is fixedly installed on one end of the slide frame, the transmission motor is used to drive the linkage screw to rotate, and the outer wall of the linkage screw is threadedly connected to two sleeve blocks.

[0005] The sleeve block is slidably connected to the sliding frame, a demoulding strip is fixedly connected to the bottom end of the sleeve block, a linkage rod is fixedly connected to one side of the demoulding strip, a sliding sleeve block is slidably connected to the outer wall of the linkage rod, and the sliding sleeve block is fixedly connected to the injection molding demoulding table; one end of the linkage rod is fixedly connected to a support block, a plurality of inner buckle columns are fixedly installed on one side of the support block, a distance sensor is fixedly connected to one side of the outer wall of the support block, a plurality of inner buckle columns are fixedly installed on one side of the support block, a demoulding box is provided on one side of the inner buckle columns, and the demoulding box is fixedly connected to the injection molding demoulding table; a main surface injection molding demoulding mechanism is provided on one side of the demoulding box; a three-color injection molding component is provided on the upper surface of the demoulding box.

[0006] Preferably, the output end of the transmission motor is fixedly connected to the linkage screw, and the outer walls of the two sleeve blocks and the inner wall of the sliding frame are smooth surfaces; the vertical cross-section of the linkage rod is circular. The two support blocks are symmetrically arranged about the demoulding box, and the two support blocks are made of stainless steel. Embedding holes are provided on both sides of the inner wall of the demoulding box, and the inner buckle column is slidably plugged into the embedding hole. A controller is fixedly installed on one side of the injection molding demoulding table, and the injection molding demoulding table is used to support the controller.

[0007] When the technology is in use, the transmission motor drives the linkage screw to rotate forward, and the linkage screw drives the two sleeve blocks to approach each other under the action of the thread transmission force, and the two demolding strips respectively drive the two linkage rods to approach each other, and the linkage rods drive the support block to move right, and the multiple inner buckle columns are respectively inserted into the interior of the multiple embedded holes, and the multiple inner buckle columns can be inserted into the demolding inner buckle position inside the demolding box.

[0008] Preferably, the main surface injection molding demolding mechanism includes a demolding module arranged on one side of a demolding box; a plurality of demolding pillars are fixedly installed on one side of the demolding module, and a connecting block is fixedly connected to the other side of the demolding module, an electric cylinder is installed on one side of the connecting block, and the output end of the electric cylinder is fixedly connected to the connecting block; a support sleeve is fixedly installed on the outer wall of the electric cylinder, and a reinforcement column is fixedly connected inside the support sleeve and near its two corners, and a reinforcement block is fixedly connected to one end of the reinforcement column, and the reinforcement block is fixedly connected to the injection molding demolding table. The vertical cross-section shape of the plurality of demolding pillars is circular, and the vertical cross-section shape of the demolding module is rectangular. The support sleeve is fixedly connected to the injection molding demolding table, and the support sleeve is used to support the reinforcement column.

[0009] When this technology is used, the transmission motor drives the linkage screw to rotate in the opposite direction, and the linkage screw drives the two sleeve blocks to move away from each other under the action of the thread transmission force. The two demoulding strips drive the two linkage rods to move away from each other, so that the linkage rod drives the support block to move left, and multiple inner buckle columns can realize the separation operation from the demoulding inner buckle position inside the demoulding box.

[0010] Preferably, the three-color injection molding assembly includes a three-color barrel fixedly connected to the upper surface of the demoulding box; support rods are provided on both sides of the three-color barrel, the inner wall of the three-color barrel is slidably connected with a push rod, the top of the push rod is installed with an extrusion electric cylinder, the output end of the extrusion electric cylinder is fixedly connected to the push rod, the top of the support rod is fixedly connected with a reinforcement sleeve, and the reinforcement sleeve is fixedly connected to the extrusion electric cylinder; the outer wall of the support rod is fixedly installed with a connecting sleeve, the connecting sleeve is slidably connected to the push rod, the bottom end of the push rod is fixedly installed with a pressure block, the pressure block is slidably connected to the three-color barrel, and the outer wall of the three-color barrel is fixedly connected with a three-color material tube. The two support rods are symmetrically arranged about the push rod, and the cross-sectional shape of the push rod is circular; the interior of the three-color barrel is a smooth surface.

[0011] When this technology is used, the three-color mixed plastic granule melt is poured into the three-color material tube, and the three-color material barrel is supported by the demoulding box. The support rod supports the connecting sleeve block, and the push rod slides downward along the inner wall of the connecting sleeve block. The pressing block performs an extrusion operation on the inside of the three-color material barrel, so that the three-color mixed plastic granule melt is injection molded into the demoulding box.

[0012] Technical effects and advantages of the present invention: The present invention uses a linkage injection inner buckle molding demolding mechanism. The transmission motor drives the linkage screw to rotate forward. The two sleeves approach each other under the action of the thread transmission force. At the same time, the two sleeves respectively drive the two demolding strips to approach each other. Multiple inner buckle columns are respectively inserted into the interior of multiple embedded holes. Multiple inner buckle columns can be inserted into the demolding inner buckle position inside the demolding box. The transmission motor drives the linkage screw to rotate in the opposite direction. The linkage screw drives the two sleeves to move away from each other under the action of the thread transmission force. The two demolding strips respectively drive two linkage rods to move away from each other. The linkage rod slides to the left along the inner wall of the sliding sleeve, and the other linkage rod slides to the right. Multiple inner buckle columns can realize separation operation from the demolding inner buckle position inside the demolding box. Synchronous multi-directional embedded injection molding demolding can be performed during demolding, thereby greatly improving the demolding efficiency.

[0013] The present invention adopts a main surface injection molding demolding mechanism, a support sleeve supports an electric cylinder, the electric cylinder pushes a connecting block, the connecting block drives a demolding module to move backward, the demolding module drives a plurality of demolding pillars to move backward, and the demolding pillars are inserted into the front inner position of the demolding box to realize the front demolding operation. During demolding, synchronous multi-directional embedded injection molding demolding can be performed, thereby greatly improving the demolding efficiency.

[0014] The present invention adopts a three-color injection molding component, and the molten plastic particles mixed with three colors are poured into the inside of the three-color material tube, and then poured into the three-color material barrel by the three-color material tube. The injection molding demolding table provides supporting force for the support rod, the support rod supports the reinforcement sleeve plate, the support rod supports the connecting sleeve block, the push rod slides downward along the inner wall of the connecting sleeve block, and the pressing block realizes the extrusion operation on the inside of the three-color material barrel, so that the molten plastic particles mixed with three colors are injection molded into the inside of the demolding box, and synchronous multi-directional embedded injection molding demolding can be performed during demolding.

[0015] The above multiple functions interact with each other. First, multiple inner buckle columns can realize separation operation from the inner buckle position of the demoulding box. Secondly, the demoulding pillars are inserted into the front inner position of the demoulding box to realize the demoulding operation. Finally, the pressing block realizes the extrusion operation on the inside of the three-color barrel, so that the three-color mixed plastic granule molten liquid is injected into the demoulding box. In summary, the demoulding can be carried out synchronously in multiple directions during demoulding, which greatly improves the demoulding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the top view of the three-color demoulding mechanism for independently pulling out the core of the inner buckle insert of the present invention.

[0017] Figure 2 It is a schematic diagram of a partial structure of the connection between the sliding frame and the bracket of the present invention.

[0018] Figure 3 It is a schematic diagram of the partial structure of the connection between the sliding frame and the transmission motor of the present invention.

[0019] Figure 4 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0020] Figure 5 It is a schematic diagram of the truncated structure of the main surface injection molding demoulding mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the main structure of the three-color demoulding mechanism for independently pulling out the core of the inner buckle insert of the present invention.

[0022] Figure 7 It is a schematic diagram of the partial structure of the connection between the demoulding box and the three-color barrel of the present invention.

[0023] Figure 8 It is a schematic diagram of the partial structure of the connection between the push rod and the pressing block of the present invention.

[0024] The accompanying drawings are marked as follows: 1. injection molding demolding table; 2. bracket; 3. slide frame; 4. linkage screw; 5. transmission motor; 6. sleeve block; 7. demolding strip; 8. linkage rod; 9. sliding sleeve block; 10. support block; 11. inner buckle column; 12. distance sensor; 13. demolding box; 14. embedding hole; 15. controller; 16. demolding module; 17. demolding pillar; 18. connecting block; 19. electric cylinder; 20. support sleeve plate; 21. reinforcement column; 22. reinforcement block; 23. three-color barrel; 24. support rod; 25. push rod; 26. extrusion electric cylinder; 27. reinforcement sleeve plate; 28. connecting sleeve block; 29. ​​pressing block; 30. three-color material tube. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] As attached Figure 1 - Attachment Figure 8 A three-color demoulding mechanism for independently pulling out the core of an inner buckle insert is shown. The three-color demoulding mechanism for independently pulling out the core of an inner buckle insert is provided with a linked injection inner buckle molding demoulding mechanism, a main surface injection molding demoulding mechanism, and a three-color injection molding component. The arrangement of each mechanism and component can perform synchronous multi-directional embedded injection molding demoulding during demoulding, thereby greatly improving the demoulding efficiency. The specific structural arrangement of each mechanism and component is as follows.

[0027] In this technical solution, as shown in the attached Figure 1 - Attachment Figure 4 As shown, the linkage injection inner buckle molding demolding mechanism includes a linkage screw 4 rotatably arranged inside the slide frame 3, the outer wall of the linkage screw 4 has two threads opposite to each other and symmetrically opened, a transmission motor 5 is fixedly installed at one end of the slide frame 3, the transmission motor 5 is used to drive the linkage screw 4 to rotate, and the outer wall of the linkage screw 4 is threadedly connected with two sleeve blocks 6; the sleeve block 6 is slidably connected to the slide frame 3, the bottom end of the sleeve block 6 is fixedly connected to a demolding strip 7, one side of the demolding strip 7 is fixedly connected to a linkage rod 8, the outer wall of the linkage rod 8 is slidably connected to a sliding sleeve block 9, and the sliding sleeve block 9 is fixedly connected to the injection molding demolding table 1.

[0028] One end of the linkage rod 8 is fixedly connected to a support block 10, one side of the support block 10 is fixedly installed with a plurality of inner buckle columns 11, one side of the outer wall of the support block 10 is fixedly connected to a distance sensor 12, one side of the support block 10 is fixedly installed with a plurality of inner buckle columns 11, one side of the inner buckle columns 11 is provided with a demolding box 13, and the demolding box 13 is fixedly connected to the injection demolding table 1; one side of the demolding box 13 is provided with a main surface injection molding demolding mechanism; the upper surface of the demolding box 13 is provided with a three-color injection molding component.

[0029] In this technical solution, as shown in the attached Figure 1 - Attachment Figure 4 As shown, both sides of the inner wall of the demoulding box 13 are provided with embedding holes 14, and the inner buckle columns 11 are slidably plugged into the embedding holes 14, so that multiple inner buckle columns 11 are respectively inserted into the inner parts of the multiple embedding holes 14, and the injection molding demoulding table 1 supports the demoulding box 13, and multiple inner buckle columns 11 can be inserted into the demoulding inner buckle positions inside the demoulding box 13. A controller 15 is fixedly installed on one side of the injection molding demoulding table 1, so that the injection molding demoulding table 1 is used to support the controller 15, and the controller 15 starts the transmission motor 5 through the controller 15 to realize the driving of the transmission motor 5.

[0030] In this technical solution, as shown in the attached Figure 5 - Attachment Figure 6 As shown, the main surface injection molding demoulding mechanism includes a demoulding module 16 arranged on one side of the demoulding box 13; a plurality of demoulding pillars 17 are fixedly installed on one side of the demoulding module 16, and a connecting block 18 is fixedly connected to the other side of the demoulding module 16, and an electric cylinder 19 is installed on one side of the connecting block 18, and the output end of the electric cylinder 19 is fixedly connected to the connecting block 18; a support sleeve 20 is fixedly installed on the outer wall of the electric cylinder 19, and a reinforcement column 21 is fixedly connected inside the support sleeve 20 and near its two corners, and a reinforcement block 22 is fixedly connected to one end of the reinforcement column 21, and the reinforcement block 22 is fixedly connected to the injection molding demoulding table 1. The vertical cross-section shape of the plurality of demoulding pillars 17 is circular, and the vertical cross-section shape of the demoulding module 16 is rectangular. The support sleeve 20 is fixedly connected to the injection molding demoulding table 1, and the support sleeve 20 is used to support the reinforcement column 21.

[0031] In this technical solution, as shown in the attached Figure 7 - Attachment Figure 8 As shown, the three-color injection molding assembly includes a three-color barrel 23 fixedly connected to the upper surface of the demolding box 13; support rods 24 are provided on both sides of the three-color barrel 23, and a push rod 25 is slidably connected to the inner wall of the three-color barrel 23, and an extrusion electric cylinder 26 is installed on the top of the push rod 25, and the output end of the extrusion electric cylinder 26 is fixedly connected to the push rod 25, and the top of the support rod 24 is fixedly connected to a reinforcement sleeve 27, and the reinforcement sleeve 27 is fixedly connected to the extrusion electric cylinder 26.

[0032] A connecting sleeve 28 is fixedly mounted on the outer wall of the support rod 24, and the connecting sleeve 28 is slidably connected to the push rod 25. A pressing block 29 is fixedly mounted on the bottom end of the push rod 25, and the pressing block 29 is slidably connected to the three-color barrel 23. A three-color material pipe 30 is fixedly connected to the outer wall of the three-color barrel 23. The two support rods 24 are symmetrically arranged with respect to the push rod 25, and the cross-sectional shape of the push rod 25 is circular; the interior of the three-color barrel 23 is a smooth surface.

[0033] The working principle of the three-color demoulding mechanism for independently pulling the core of the inner buckle insert of the present invention is as follows: Step 1: When demolding the linked injection inner buckle molding, the transmission motor 5 is started through the controller 15, and the transmission motor 5 drives the linkage screw 4 to rotate forward. The linkage screw 4 drives the two sleeves 6 to approach each other under the action of the thread transmission force. At the same time, the two sleeves 6 respectively drive the two demolding strips 7 to approach each other, and the two demolding strips 7 respectively drive the two linkage rods 8 to approach each other. The linkage rod 8 slides right along the inner wall of the sliding sleeve 9, and the other linkage rod 8 slides left. The linkage rod 8 drives the support block 10 to move right, and the support block 10 drives the multiple inner buckle columns 11 to move right. The multiple inner buckle columns 11 are respectively inserted into the interior of the multiple embedded holes 14. At the same time, the injection molding demolding table 1 supports the demolding box 13, so that the multiple inner buckle columns 11 can be inserted into the demolding inner buckle position inside the demolding box 13.

[0034] Step 2: When the main surface is demoulded by injection molding, the injection molding demoulding table 1 supports the reinforcement block 22, the reinforcement block 22 supports the reinforcement column 21, and the reinforcement column 21 provides support force for the support sleeve 20. The support sleeve 20 supports the electric cylinder 19, the electric cylinder 19 pushes the connecting block 18, the connecting block 18 drives the demoulding module 16 to move backward, the demoulding module 16 drives the multiple demoulding pillars 17 to move backward, and the demoulding pillars 17 are inserted into the front inner position of the demoulding box 13.

[0035] Step 3: During three-color injection molding, the molten plastic particles mixed with three colors are poured into the inside of the three-color material tube 30, and then poured into the three-color barrel 23 by the three-color material tube 30, and the three-color barrel 23 is supported by the demolding box 13. At the same time, the injection molding demolding table 1 provides support force to the support rod 24, the support rod 24 supports the reinforcement sleeve 27, the support rod 24 supports the connecting sleeve block 28, and the extrusion electric cylinder 26 pushes the push rod 25 downward. The push rod 25 slides downward along the inner wall of the connecting sleeve block 28, and the push rod 25 drives the pressing block 29 to move downward for extrusion, and the pressing block 29 performs an extrusion operation on the inside of the three-color barrel 23, so that the molten plastic particles mixed with three colors are injection molded into the inside of the demolding box 13, and the injection molding operation is completed after it is cooled.

[0036] Step 4: When demoulding and resetting, the transmission motor 5 drives the linkage screw 4 to rotate in the opposite direction, and the linkage screw 4 drives the two sleeves 6 to move away from each other under the action of the thread transmission force. The two sleeves 6 respectively drive the two demoulding strips 7 to move away from each other, and the two demoulding strips 7 respectively drive the two linkage rods 8 to move away from each other. The linkage rod 8 slides to the left along the inner wall of the sliding sleeve 9, and the other linkage rod 8 slides to the right. In this way, the linkage rod 8 drives the support block 10 to move to the left, and the support block 10 drives the multiple inner buckle columns 11 to move to the left. The multiple inner buckle columns 11 are separated from the inside of the multiple embedded holes 14 respectively, and the multiple inner buckle columns 11 can realize the separation operation from the demoulding inner buckle position inside the demoulding box 13.

[0037] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-color demoulding mechanism for independently pulling out the core of an inner buckle insert, comprising an injection molding demoulding table (1), a bracket (2) and a slide frame (3), wherein the bracket (2) is fixed to one side of the injection molding demoulding table (1), and the slide frame (3) is fixedly connected to one side of the bracket (2), characterized in that: A linkage injection inner buckle molding demoulding mechanism is installed inside the sliding frame (3); The linkage injection molding demoulding mechanism comprises a linkage screw (4) rotatably arranged inside a slide frame (3), the outer wall of the linkage screw (4) has two threads which are opposite and symmetrically arranged, one end of the slide frame (3) is fixedly mounted with a transmission motor (5), the transmission motor (5) is used to drive the linkage screw (4) to rotate, and the outer wall of the linkage screw (4) is threadedly connected to two sleeve blocks (6); The sleeve block (6) is slidably connected to the slide frame (3); a demoulding strip (7) is fixedly connected to the bottom end of the sleeve block (6); a linkage rod (8) is fixedly connected to one side of the demoulding strip (7); a sliding sleeve block (9) is slidably connected to the outer wall of the linkage rod (8); and the sliding sleeve block (9) is fixedly connected to the injection molding demoulding table (1); One end of the linkage rod (8) is fixedly connected to a support block (10), one side of the support block (10) is fixedly mounted with a plurality of inner buckle columns (11), one side of the outer wall of the support block (10) is fixedly connected to a distance sensor (12), one side of the support block (10) is fixedly mounted with a plurality of inner buckle columns (11), one side of the inner buckle columns (11) is provided with a demoulding box (13), and the demoulding box (13) is fixedly connected to the injection molding demoulding table (1); A main surface injection molding demoulding mechanism is provided on one side of the demoulding box (13); The upper surface of the demoulding box (13) is provided with a three-color injection molding component.

2. The three-color demoulding mechanism for independently pulling the core of the inner buckle insert according to claim 1 is characterized in that: The output end of the transmission motor (5) is fixedly connected to the linkage screw (4), and the outer walls of the two sleeve blocks (6) and the inner wall of the slide frame (3) are both smooth surfaces; The vertical cross-section of the linkage rod (8) is circular.

3. The three-color demoulding mechanism for independently pulling the inner buckle insert according to claim 1 is characterized in that: The two support blocks (10) are symmetrically arranged with respect to the demoulding box (13), and the two support blocks (10) are both made of stainless steel.

4. The three-color demoulding mechanism for independently pulling the core of the inner buckle insert according to claim 1 is characterized in that: Embedding holes (14) are provided on both sides of the inner wall of the demoulding box (13), and the inner buckle column (11) is slidably plugged into the embedding holes (14).

5. The three-color demoulding mechanism for independently pulling the core of the inner buckle insert according to claim 1 is characterized in that: A controller (15) is fixedly mounted on one side of the injection molding and demoulding platform (1), and the injection molding and demoulding platform (1) is used to support the controller (15).

6. The three-color demoulding mechanism for independently pulling the core of the inner buckle insert according to claim 1 is characterized in that: The main surface injection molding demoulding mechanism comprises a demoulding module (16) arranged on one side of the demoulding box (13); A plurality of demoulding pillars (17) are fixedly mounted on one side of the demoulding module (16), and a connecting block (18) is fixedly connected to the other side of the demoulding module (16); an electric cylinder (19) is mounted on one side of the connecting block (18), and an output end of the electric cylinder (19) is fixedly connected to the connecting block (18); A support sleeve (20) is fixedly mounted on the outer wall of the electric cylinder (19); a reinforcement column (21) is fixedly connected inside the support sleeve (20) and near its two corners; a reinforcement block (22) is fixedly connected to one end of the reinforcement column (21); and the reinforcement block (22) is fixedly connected to the injection molding demoulding table (1).

7. The three-color demoulding mechanism for independently pulling the core of the inner buckle insert according to claim 6 is characterized in that: The vertical cross-section shapes of the plurality of demoulding pillars (17) are all circular, and the vertical cross-section shape of the demoulding module (16) is rectangular.

8. The three-color demoulding mechanism for independently pulling the core of the inner buckle insert according to claim 6 is characterized in that: The support sleeve (20) is fixedly connected to the injection molding demoulding platform (1), and the support sleeve (20) is used to support the reinforcement column (21).

9. The three-color demoulding mechanism for independently pulling the inner buckle insert according to claim 1 is characterized in that: The three-color injection molding assembly comprises a three-color material barrel (23) fixedly connected to the upper surface of the demoulding box (13); Support rods (24) are provided on both sides of the three-color barrel (23); a push rod (25) is slidably connected to the inner wall of the three-color barrel (23); an extrusion electric cylinder (26) is installed on the top of the push rod (25); the output end of the extrusion electric cylinder (26) is fixedly connected to the push rod (25); a reinforcement sleeve (27) is fixedly connected to the top of the support rod (24); and the reinforcement sleeve (27) is fixedly connected to the extrusion electric cylinder (26); A connecting sleeve (28) is fixedly mounted on the outer wall of the support rod (24), and the connecting sleeve (28) is slidably connected to the push rod (25). A pressing block (29) is fixedly mounted on the bottom end of the push rod (25), and the pressing block (29) is slidably connected to the three-color material barrel (23). The outer wall of the three-color material barrel (23) is fixedly connected to a three-color material pipe (30).

10. The three-color demoulding mechanism for independently pulling the core of the inner buckle insert according to claim 9, characterized in that: The two support rods (24) are symmetrically arranged with respect to the push rod (25), and the cross-sectional shape of the push rod (25) is circular; The interior of the three-color barrel (23) is a smooth surface.

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