Core sliding type two-color mold base injection structure and sliding block core pulling mechanism

Abstract

This invention discloses a core-sliding two-color mold base injection structure and a slider core-pulling mechanism, comprising: a lower mold, a fixed plate fixedly connected to the side surface of the lower mold, a cylinder fixedly connected to the side surface of the fixed plate, the driving end of the cylinder penetrating through the fixed plate, a through hole opened on the upper surface of the lower mold, an upper mold slidably connected to the inner wall of the lower mold in the through hole, an injection joint fixedly connected to the surface of the upper mold, a left plastic block fixedly connected to the driving end of the cylinder, the left plastic block slidably connected to the surface of the lower mold, a right plastic block slidably connected to the surface of the lower mold, the surfaces of the left plastic block and the right plastic block abutting against each other, and a maintenance device provided on the side surface of the fixed plate. When the equipment is processing, the reciprocating motion of the cylinder itself, and some components in the maintenance device clean the driving end of the cylinder, thereby reducing impurities on the surface of the driving end of the cylinder, reducing the wear rate of the cylinder, and realizing the ability of the equipment to quickly maintain the driving mechanism.

Description

Technical Field

[0001] This invention relates to the field of plastic molding technology, specifically to a core-sliding two-color mold base injection structure and a slider core-pulling mechanism. Background Technology

[0002] A two-color mold is a mold installed on the same injection molding machine with two sets of injection units. It is called a two-color mold because two types of plastics are injected in sequence to produce two-color products. There are usually two types of two-color injection molding machines: parallel injection screw injection molding machines and vertical injection screw injection molding machines. Parallel type: The injection screws are arranged in parallel and can operate independently or simultaneously. They have two sets of independently functioning ejection mechanisms. Vertical type: The injection screws are arranged vertically in a plane. They can also operate independently or simultaneously, but they only have one set of ejection mechanisms.

[0003] Two-color molds can be classified by structure into: core rotary type, core sliding type, and push plate rotary type. Among them, the core rotary type can be further divided into two types: split type and integrated type. The split type uses two molds mounted on one injection molding machine to complete the injection molding of two-color products, while the integrated type completes the injection molding of two-color products in one mold. The core rotary split type is more widely used.

[0004] However, existing processing equipment has the following shortcomings:

[0005] Most existing equipment relies on manual maintenance. For example, CN206406357U requires regular cleaning of the equipment during processing. Manual cleaning requires disassembling the equipment, which reduces the efficiency of maintenance personnel. In addition, the upper and lower molds of existing equipment are mostly in direct contact, which can easily lead to collisions between the upper and lower molds during processing, causing deviations in the accuracy of the equipment. Furthermore, the injection conduits of existing equipment are mostly fixed with screws, making it impossible to quickly repair the injection conduits when they malfunction.

[0006] Therefore, we proposed a core-sliding two-color mold base injection structure and a slider core-pulling mechanism to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a core-sliding two-color mold base injection structure and a slider core-pulling mechanism. Through a maintenance device connected to a cylinder, the reciprocating motion of the cylinder itself is used to clean the cylinder drive end with some components, thereby reducing impurities on the surface of the cylinder drive end and reducing the wear rate of the cylinder. This enables the equipment to perform rapid maintenance on the drive mechanism, thus solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a core-sliding two-color mold base injection structure and a slider core-pulling mechanism, comprising: a lower mold, a fixed plate fixedly connected to the side surface of the lower mold, a cylinder fixedly connected to the side surface of the fixed plate, the driving end of the cylinder penetrating through the fixed plate, a through hole opened on the upper surface of the lower mold, an upper mold slidably connected to the inner wall of the lower mold at the through hole, an injection joint fixedly connected to the surface of the upper mold, a left plastic block fixedly connected to the driving end of the cylinder, the left plastic block slidably connected to the surface of the lower mold, and a right plastic block slidably connected to the surface of the lower mold, the surfaces of the left plastic block and the right plastic block abutting against each other;

[0009] The side surface of the fixing plate is provided with a maintenance device, the surface of the upper mold is provided with an installation groove, the inner wall of the upper mold located in the installation groove is provided with a buffer device, and the surface of the upper mold is provided with a stabilizing device.

[0010] The maintenance device includes a positioning frame, which is fixedly connected to the side surface of a fixed plate. A groove is formed on the surface of the fixed frame, and a connecting frame is slidably connected to the inner wall of the groove. A limit spring is fixedly connected to the surface of the connecting frame, and a bolt is fixedly connected to the side of the connecting frame near the fixed plate. A pull ring is fixedly connected to the side surface of the connecting frame, and a connecting ring abuts against the surface of the positioning frame. A slot is formed on the inner wall of the connecting ring, and a cleaning sponge is engaged with the connecting ring within the slot. By fixing the connecting ring with the connecting frame, the position of the cleaning sponge is restricted, thereby allowing cleaning of the cylinder drive end.

[0011] Preferably, the drive end of the cylinder passes through the positioning frame, and the connecting frame passes through the slide groove. There are two connecting frames, arranged symmetrically about the positioning frame. The positioning frame restricts the position of the connecting frame, reducing its offset.

[0012] Preferably, the limiting spring is fixedly connected to the inner wall of the slide groove, and there are two plugs arranged symmetrically about the connecting frame. The surface of the connecting ring has a slot, and the plug abuts against the inner wall of the slot. The limiting spring constrains the position of the connecting frame.

[0013] Preferably, the connecting ring abuts against the surface of the cylinder drive end, and the cleaning sponge abuts against the surface of the cylinder drive end. The connecting ring secures the cleaning sponge, thereby improving the contact between the cleaning sponge and the cylinder.

[0014] Preferably, the buffer device includes a mounting ring, which is fixedly connected to the inner wall of the mounting groove. A guide post is fixedly connected to the surface of the mounting ring, and a guide sleeve is slidably connected to the surface of the guide post. The guide post restricts the position of the guide sleeve.

[0015] Preferably, a stop block is fixedly connected to the surface of the guide sleeve, a first spring is fixedly connected to the surface of the mounting ring, a receiving groove is formed on the surface of the guide post, and a second spring is fixedly connected to the inner wall of the receiving groove on the guide post. The first spring is provided to constrain the position of the guide sleeve.

[0016] Preferably, the guide post abuts against the surface of the abutment ring, the surface of the abutment block has a circular hole, the upper mold is slidably connected to the inner wall of the circular hole, the first spring is fixedly connected to the surface of the guide sleeve, and the second spring is fixedly connected to the surface of the abutment block. The second spring is provided to assist the first spring in buffering the impact force generated by the equipment.

[0017] Preferably, the stabilizing device includes a guide rail, which is fixedly connected to the surface of the upper mold. A connecting rod is slidably connected to the inner wall of the guide rail. A limit hole is formed on the surface of the connecting rod, and a rotating shaft is rotatably connected to the inner wall of the limit hole. The guide rail guides the movement direction of the connecting rod.

[0018] Preferably, the connecting rod has a guide groove on its surface, and a push block is slidably connected to the inner wall of the guide groove. A return spring is fixedly connected to the surface of the push block, and an anchor bolt is fixedly connected to the surface of the push block. A locking block is fixedly connected to the surface of the connecting rod. The connecting rod supports the position of the locking block.

[0019] Preferably, there are two guide rails, which are symmetrically arranged about the joint. The push block passes through the guide rail, and the return spring is fixedly connected to the inner wall of the guide groove. Multiple asymmetrical fixing holes are formed on the surface of the guide rail, and the anchor bolt passes through the connecting rod, abutting against the inner wall of the fixing hole. A return spring is provided to constrain the position of the push block.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention, by incorporating a maintenance device, allows the cylinder drive end to move during injection molding, gradually passing through a cleaning sponge. The sponge wipes away dust and other impurities from the surface of the cylinder drive end. When the cleaning sponge needs replacement, pulling the pull ring pulls the connecting frame, which in turn compresses the limit spring. The limit spring deforms under pressure, causing the connecting frame to displace without the spring's constraint. The connecting frame then pulls the plug, disengaging it from the slot. Simultaneously, the connecting ring, freed from the plug's restraint, moves, causing the cleaning sponge to detach from the cylinder. The cleaning sponge can then be replaced. This maintenance device facilitates equipment cleaning and maintenance, reduces the workload of maintenance personnel, improves maintenance efficiency, and makes equipment maintenance more convenient.

[0022] 2. By setting up a buffer device, when the equipment is processing, the upper mold gradually slides downwards, and the abutment block contacts the lower mold first and is restricted by the lower mold. The upper mold pushes the mounting ring, the mounting ring pushes the guide column, and the guide column squeezes the second spring. The second spring is squeezed and deformed. At the same time, the abutment block squeezes the first spring, and the first spring is squeezed and deformed. Together with the first spring, the pressure generated by the upper mold is absorbed. By setting up a buffer device, the equipment can be closed for processing, the impact force generated when the equipment closes is reduced, the stability of the equipment is further increased, and the accuracy of the equipment is improved.

[0023] 3. By setting up a stabilizing device, when the injection molding conduit needs to be repaired, the push block is pushed, which squeezes the return spring. The return spring is deformed by the squeeze, and the push block loses the constraint of the return spring and moves. The push block pulls the anchor bolt out of the fixing hole, and then the push block is pushed, which pulls the connecting rod. The connecting rod pushes the locking block, and the locking block is disengaged from the injection molding conduit. Then the injection molding conduit can be disassembled and repaired. By setting up a stabilizing device, the equipment repair is facilitated, the repair difficulty is reduced, the repair time is reduced, and the repair efficiency is improved. Attached Figure Description

[0024] Figure 1 This is a perspective view of the core sliding two-color mold base injection structure and slider core pulling mechanism of the present invention.

[0025] Figure 2 This is a perspective view of a portion of the core-sliding two-color mold base injection structure and slider core-pulling mechanism of the present invention.

[0026] Figure 3 This is an enlarged perspective view of another part of the core sliding dual-color mold base injection structure and slider core pulling mechanism of the present invention.

[0027] Figure 4 This is an enlarged perspective view of the maintenance device structure in the core sliding two-color mold base injection structure and the slider core pulling mechanism of the present invention.

[0028] Figure 5 The present invention relates to a core-sliding two-color mold base injection structure and a slider core-pulling mechanism. Figure 4 Enlarged 3D view of the structure at point A in the middle;

[0029] Figure 6 This is an enlarged perspective view of the buffer device structure in the core sliding dual-color mold frame injection structure and the slider core pulling mechanism of the present invention.

[0030] Figure 7 This is an enlarged perspective view of the stabilizing device structure in the core sliding dual-color mold frame injection structure and the slider core pulling mechanism of the present invention.

[0031] Figure 8 The present invention relates to a core-sliding two-color mold base injection structure and a slider core-pulling mechanism. Figure 7 Enlarged 3D view of the structure at point B.

[0032] In the diagram: 1. Lower mold; 2. Fixing plate; 3. Cylinder; 4. Upper mold; 5. Left molding block; 6. Right molding block; 7. Maintenance device; 71. Positioning frame; 72. Connecting frame; 73. Limiting spring; 74. Bolt; 75. Pull ring; 76. Connecting ring; 77. Cleaning sponge; 8. Buffer device; 81. Mounting ring; 82. Guide post; 83. Guide sleeve; 84. Abutment block; 85. First spring; 86. Second spring; 9. Stabilizing device; 91. Guide rail; 92. Connecting rod; 93. Rotating shaft; 94. Push block; 95. Return spring; 96. Anchor bolt; 97. Locking block. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1-8As shown, the present invention provides a technical solution: a core sliding type two-color mold frame injection structure and a slider core pulling mechanism, including: a lower mold 1, a fixing plate 2 fixedly connected to the side surface of the lower mold 1, a cylinder 3 fixedly connected to the side surface of the fixing plate 2, the driving end of the cylinder 3 passing through the fixing plate 2, a through hole opened on the upper surface of the lower mold 1, an upper mold slidably connected to the inner wall of the lower mold 1 in the through hole, an injection joint fixedly connected to the surface of the upper mold 4, a left plastic block 5 fixedly connected to the driving end of the cylinder 3, the left plastic block 5 slidably connected to the surface of the lower mold, a right plastic block 6 slidably connected to the surface of the lower mold 1, the surfaces of the left plastic block 5 and the right plastic block 6 abutting each other, a maintenance device 7 provided on the side surface of the fixing plate 2, an installation groove opened on the surface of the upper mold 4, a buffer device 8 provided on the inner wall of the installation groove of the upper mold 4, and a stabilizing device 9 provided on the surface of the upper mold 4.

[0035] according to Figure 4-5 As shown, the maintenance device 7 includes a positioning frame 71, which is fixedly connected to the side surface of the fixing plate 2. The surface of the fixing frame is provided with a sliding groove, and a connecting frame 72 is slidably connected to the inner wall of the sliding groove. A limit spring 73 is fixedly connected to the surface of the connecting frame 72. A plug 74 is fixedly connected to the side of the connecting frame 72 near the fixing plate 2. A pull ring 75 is fixedly connected to the side surface of the connecting frame 72. A connecting ring 76 abuts against the surface of the positioning frame 71. A slot is provided on the inner wall of the connecting ring 76, and a cleaning sponge 77 is engaged with the inner wall of the slot. By fixing the connecting ring 76 to the connecting bracket 72, the position of the cleaning sponge 77 is restricted, thus allowing cleaning of the drive end of the cylinder 3. When the equipment is undergoing injection molding, the drive end of the cylinder 3 moves, gradually passing through the cleaning sponge 77 during the movement. The cleaning sponge 77 wipes away dust and other impurities from the surface of the drive end of the cylinder 3. When the cleaning sponge 77 needs to be replaced, pull the pull ring 75. The pull ring 75 pulls the connecting bracket 72, which compresses the limit spring 73. The limit spring 73 is deformed by compression, and the connecting bracket 72 loses its constraint and shifts. The connecting bracket 72 pulls the plug 74, which disengages from the slot. At the same time, the connecting ring 76 loses its constraint from the plug 74. By moving the connecting ring 76, the cleaning sponge 77 is disengaged from the cylinder 3, and then the cleaning sponge 77 can be replaced. By setting up the maintenance device 7, the cleaning and maintenance of the equipment is facilitated, reducing the workload of maintenance personnel and further improving the maintenance efficiency of the equipment, while also making the maintenance of the equipment more convenient.

[0036] according to Figure 4-5 As shown, the drive end of the cylinder 3 passes through the positioning frame 71, and the connecting frame 72 passes through the slide groove. There are two connecting frames 72, which are arranged symmetrically about the positioning frame 71. The positioning frame 71 restricts the position of the connecting frame 72 to reduce its offset.

[0037] according to Figure 4-5 As shown, the limiting spring 73 is fixedly connected to the inner wall of the slide groove. There are two plugs 74, which are symmetrically arranged about the connecting frame 72. The surface of the connecting ring 76 has a slot, and the plug 74 abuts against the inner wall of the slot. The limiting spring 73 is provided to constrain the position of the connecting frame 72.

[0038] As shown in the figure, the connecting ring 76 abuts against the surface of the driving end of the cylinder 3, and the cleaning sponge 77 abuts against the surface of the driving end of the cylinder 3. The connecting ring 76 is provided to fix the cleaning sponge 77, thereby improving the contact between the cleaning sponge 77 and the cylinder 3.

[0039] according to Figure 6 As shown, the buffer device 8 includes a mounting ring 81, which is fixedly connected to the inner wall of the mounting groove. A guide post 82 is fixedly connected to the surface of the mounting ring 81, and a guide sleeve 83 is slidably connected to the surface of the guide post 82. The guide post 82 is provided to restrict the position of the guide sleeve 83.

[0040] according to Figure 6 As shown, a stop block 84 is fixedly connected to the surface of the guide sleeve 83, a first spring 85 is fixedly connected to the surface of the mounting ring 81, and a receiving groove is formed on the surface of the guide post 82. A second spring 86 is fixedly connected to the inner wall of the receiving groove. The first spring 85 is provided to constrain the position of the guide sleeve 83.

[0041] according to Figure 6 As shown, the guide post 82 abuts against the surface of the abutment ring, and the surface of the abutment block 84 has a circular hole. The upper mold 4 is slidably connected to the inner wall of the circular hole. The first spring 85 is fixedly connected to the surface of the guide sleeve 83, and the second spring 86 is fixedly connected to the surface of the abutment block 84. The second spring 86 is provided to assist the first spring 85 in buffering the impact force generated by the equipment.

[0042] according to Figure 7-8As shown, the stabilizing device 9 includes a guide rail 91, which is fixedly connected to the surface of the upper mold 4. A connecting rod 92 is slidably connected to the inner wall of the guide rail 91. A limit hole is opened on the surface of the connecting rod 92, and a rotating shaft 93 is rotatably connected to the inner wall of the limit hole. By setting the stabilizing device 9, when the injection molding guide needs to be repaired, the push block 94 is pushed, and the push block 94 squeezes the return spring 95. The return spring 95 is squeezed and deformed, and the push block 94 loses the constraint of the return spring 95 and is displaced. The push block 94 pulls the anchor bolt 96 out of the fixed hole, and then pushes the push block 94, which pulls the connecting rod 92. The connecting rod 92 pushes the locking block 97, and the locking block 97 is disengaged from the injection molding guide. Then the injection molding guide can be disassembled and repaired. By setting the device, the equipment is conveniently repaired, the repair difficulty is reduced, the repair time is reduced, and the repair efficiency is improved.

[0043] according to Figure 7-8 As shown, a guide groove is formed on the surface of the connecting rod 92. A push block 94 is slidably connected to the inner wall of the guide groove. A return spring 95 is fixedly connected to the surface of the push block 94. An anchor bolt 96 is fixedly connected to the surface of the push block 94. A locking block 97 is fixedly connected to the surface of the connecting rod 92. The connecting rod 92 is configured to support the position of the locking block 97.

[0044] according to Figure 7-8 As shown, there are two guide rails 91, which are symmetrically arranged about the joint. A push block 94 passes through the guide rail 91. A return spring 95 is fixedly connected to the inner wall of the guide groove. Multiple asymmetrical fixing holes are formed on the surface of the guide rail 91. Anchor bolts 96 pass through the connecting rod 92 and abut against the inner wall of the fixing holes. The return spring 95 is provided to constrain the position of the push block 94.

[0045] The overall effect of the mechanism is as follows: When the equipment is performing injection molding, the cylinder 3 drives the movement and gradually passes through the cleaning sponge 77. The cleaning sponge 77 wipes away dust and other impurities on the surface of the cylinder 3's drive end. When the cleaning sponge 77 needs to be replaced, pull the pull ring 75. The pull ring 75 pulls the connecting frame 72, which compresses the limiting spring 73. The limiting spring 73 is deformed by compression, and the connecting frame 72 loses the constraint of the limiting spring 73 and shifts. The connecting frame 72 pulls the plug 74, which disengages from the slot. At the same time, the connecting ring 76 loses the restriction of the plug 74 and moves the connecting ring 76. The connecting ring 76 drives the cleaning sponge 77 to disengage from the cylinder 3, and then the cleaning sponge 77 can be replaced. By setting up the maintenance device 7, the cleaning and maintenance of the equipment is facilitated, the workload of maintenance personnel is reduced, the maintenance efficiency of the equipment is further improved, and the maintenance of the equipment is made more convenient. Simultaneously, by setting up a buffer device 8, when the equipment is processing, the upper mold 4 gradually slides downward, and the abutment block 84 contacts the lower mold 1 first and is restricted by the lower mold 1. The upper mold 4 pushes the mounting ring 81, the mounting ring 81 pushes the guide column 82, and the guide column 82 squeezes the second spring 86, which is deformed by compression. At the same time, the abutment block 84 squeezes the first spring 85, which is deformed by compression. The first spring 85, together with the first spring 85, absorbs the pressure generated by the upper mold 4. By setting up the buffer device 8, the equipment can be closed for processing, which reduces the impact force generated when the equipment closes, further increases the stability of the equipment, and improves the accuracy of the equipment. In addition, by setting up a stabilizing device 9, when the injection molding conduit needs to be repaired, the push block 94 is pushed, the push block 94 squeezes the return spring 95, the return spring 95 is deformed by compression, the push block 94 loses the constraint of the return spring 95 and is displaced, the push block 94 pulls the anchor bolt 96 out of the fixing hole, and then pushes the push block 94, the push block 94 pulls the connecting rod 92, the connecting rod 92 pushes the locking block 97, the locking block 97 is disengaged from the injection molding conduit, and then the injection molding conduit can be disassembled and repaired. By setting up a high-level device, the equipment repair is facilitated, the repair difficulty is reduced, the repair time is reduced, and the repair efficiency is improved.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A core-sliding two-color mold base injection structure and a slider core-pulling mechanism, characterized in that: include: The lower mold (1) has a fixed plate (2) fixedly connected to its side surface. The fixed plate (2) has a fixed cylinder (3) fixedly connected to its side surface. The driving end of the cylinder (3) passes through the fixed plate (2). The upper surface of the lower mold (1) has a through hole. The lower mold (1) is slidably connected to the inner wall of the through hole. The surface of the upper mold (4) is fixedly connected to an injection joint. The driving end of the cylinder (3) is fixedly connected to a left plastic block (5). The left plastic block (5) is slidably connected to the surface of the lower mold. The surface of the lower mold (1) is slidably connected to a right plastic block (6). The surfaces of the left plastic block (5) and the right plastic block (6) abut against each other. The side surface of the fixing plate (2) is provided with a maintenance device (7), the surface of the upper mold (4) is provided with an installation groove, the inner wall of the upper mold (4) is provided with a buffer device (8), and the surface of the upper mold (4) is provided with a stabilizing device (9). The maintenance device (7) includes a positioning frame (71), which is fixedly connected to the side surface of the fixing plate (2). The surface of the positioning frame is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to a connecting frame (72). The surface of the connecting frame (72) is fixedly connected with a limit spring (73). The side of the connecting frame (72) near the fixing plate (2) is fixedly connected with a bolt (74). The side surface of the connecting frame (72) is fixedly connected with a pull ring (75). The surface of the positioning frame (71) abuts against a connecting ring (76). The inner wall of the connecting ring (76) is provided with a slot, and the inner wall of the connecting ring (76) is located where a cleaning sponge (77) is engaged.

2. The two-color mold base injection structure and slider core-pulling mechanism according to claim 1, characterized in that: The driving end of the cylinder (3) is provided through the positioning frame (71), and the connecting frame (72) is provided through the slide groove. There are two connecting frames (72), and the two connecting frames (72) are arranged symmetrically about the positioning frame (71).

3. The two-color mold base injection structure and slider core-pulling mechanism according to claim 1, characterized in that: The limiting spring (73) is fixedly connected to the inner wall of the slide groove. There are two plugs (74), which are arranged symmetrically about the connecting frame (72). The surface of the connecting ring (76) is provided with a slot, and the plug (74) abuts against the inner wall of the slot.

4. The two-color mold base injection structure and slider core-pulling mechanism according to claim 1, characterized in that: The connecting ring (76) abuts against the surface of the driving end of the cylinder (3), and the cleaning sponge (77) abuts against the surface of the driving end of the cylinder (3).

5. The two-color mold base injection structure and slider core-pulling mechanism according to claim 1, characterized in that: The buffer device (8) includes a mounting ring (81), which is fixedly connected to the inner wall of the mounting groove. A guide post (82) is fixedly connected to the surface of the mounting ring (81), and a guide sleeve (83) is slidably connected to the surface of the guide post (82).

6. The two-color mold base injection structure and slider core-pulling mechanism according to claim 5, characterized in that: A stop block (84) is fixedly connected to the surface of the guide sleeve (83), a first spring (85) is fixedly connected to the surface of the mounting ring (81), a storage groove is opened on the surface of the guide post (82), and a second spring (86) is fixedly connected to the inner wall of the storage groove of the guide post (82).

7. The two-color mold base injection structure and slider core-pulling mechanism according to claim 6, characterized in that: The guide post (82) abuts against the surface of the abutment ring, the surface of the abutment block (84) is provided with a circular hole, the upper mold (4) is slidably connected to the inner wall of the circular hole, the first spring (85) is fixedly connected to the surface of the guide sleeve (83), and the second spring (86) is fixedly connected to the surface of the abutment block (84).

8. The two-color mold base injection structure and slider core-pulling mechanism according to claim 1, characterized in that: The stabilizing device (9) includes a guide rail (91), which is fixedly connected to the surface of the upper mold (4). A connecting rod (92) is slidably connected to the inner wall of the guide rail (91). A limit hole is opened on the surface of the connecting rod (92), and a rotating shaft (93) is rotatably connected to the inner wall of the limit hole.

9. The two-color mold base injection structure and slider core-pulling mechanism according to claim 8, characterized in that: The connecting rod (92) has a guide groove on its surface. The connecting rod (92) is slidably connected to the inner wall of the guide groove by a push block (94). The surface of the push block (94) is fixedly connected to a return spring (95). The surface of the push block (94) is fixedly connected to an anchor bolt (96). The surface of the connecting rod (92) is fixedly connected to a locking block (97).

10. The two-color mold base injection structure and slider core-pulling mechanism according to claim 9, characterized in that: The number of guide rails (91) is two, and the two guide rails (91) are arranged symmetrically about the joint. The push block (94) is set through the guide rail (91). The reset spring (95) is fixedly connected to the inner wall of the guide groove. The surface of the guide rail (91) is provided with multiple asymmetrical fixing holes. The anchor bolt (96) is set through the connecting rod (92). The anchor bolt (96) abuts against the inner wall of the fixing hole.

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