Three-color inverted injection mold for automobile keys

Abstract

The invention belongs to the technical field of injection molding recycling, and discloses an automobile key three-color inverted injection mold which comprises a main rack, a melting feeding mechanism, a crushing mechanism motor and an injection mold body, the melting feeding mechanism, the crushing mechanism motor and the injection mold body are arranged on the main rack, the crushing mechanism is used for crushing waste, and the melting feeding mechanism is used for melting the waste and feeding; the crushing assembly is arranged in a fixing cover on the main machine frame, the crushing assembly comprises a primary crushing structure and a secondary crushing structure, and when waste enters the fixing cover and passes through the primary crushing structure and the secondary crushing structure, the waste is cut off and crushed. By arranging the primary crushing structure and the secondary crushing structure, recycled waste is firstly cut into a small state and then is further finely crushed, so that the particle uniformity of crushed materials obtained after different materials are crushed is improved, and the subsequent waste melting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of injection recycling, and specifically relates to a three-color reverse injection mold for automobile keys. BACKGROUND

[0002] In the field of manufacturing automobile interior parts, especially key parts, a multi-color injection process is often used to achieve aesthetics, functional partitioning, or backlighting effects. To achieve different effects, the parts have color differences and material differences: for example, the key base may use hard ABS or PC, while the touch area or sealing part may use soft elastomers such as TPU and TPE.

[0003] A three-color injection mold is disclosed in Chinese Patent No. CN104526980A. The existing multi-color injection equipment produces mixed waste such as sprue material and overflow material during the production process. Since these waste materials contain multiple materials of different colors and different physical properties (such as hard plastic and elastomers), the traditional integrated crushing and recycling method is not effective. During the mixing and crushing process, hard materials are brittle and break, while soft materials are prone to winding and wire drawing, resulting in a wide distribution of particle sizes after crushing, poor uniformity, and mutual adhesion of particles of different materials. The existing recycling and crushing equipment can only use a unified crushing method, resulting in recycled materials with poor compatibility and unstable performance, which cannot be directly reused for the production of automobile parts that require strict quality control. Therefore, the materials are usually downgraded or discarded, causing resource waste and environmental pressure.

[0004] Therefore, the three-color reverse injection mold for automobile keys is proposed to solve the above problems. SUMMARY

[0005] To solve the problems raised in the background art, the application provides a three-color reverse injection mold for automobile keys.

[0006] To achieve the above-mentioned purposes, the application provides the following technical solutions: a main frame, a melting and feeding mechanism, a crushing mechanism motor, and an injection mold arranged on the main frame, the crushing mechanism for crushing waste materials, and the melting and feeding mechanism for melting and feeding waste materials; a crushing assembly is arranged in a fixed cover on the main frame, the crushing assembly includes a primary crushing structure and a secondary crushing structure, and when the waste material enters the fixed cover and passes through the primary crushing structure and the secondary crushing structure, the waste material is cut off and crushed, respectively.

[0007] In the above technical solution, preferably, the crushing assembly further comprises a feeding cover fixedly connected to the top end of the fixed cover, a first baffle, a fixed support and a fixed cylinder and a separation plate located in the fixed cover, the primary crushing structure is rotationally connected in the first baffle, the primary crushing structure comprises a driving rod and a fixed disc and a cutting knife group, the secondary crushing structure is rotationally connected in the fixed cylinder, the secondary crushing structure comprises a driving rod and a crushing knife group and a push block, and the driving rods in the primary crushing structure and the secondary crushing structure are in driving connection with a transmission box provided on the motor.

[0008] In the above technical solution, preferably, an active cavity is formed between the fixed cylinder and the separation plate, the driving rod in the secondary crushing structure is fixedly connected with a pair of fixed rods, one end of the pair of fixed rods away from the driving rod is rotationally connected with a press wheel, the press wheel is in contact with the inner wall of the separation plate, the push block on the crushing knife group is in contact with the inner wall of the fixed cylinder, the fixed cylinder comprises an inner through hole, and the separation plate comprises an outer through hole; the motor drives the two driving rods arranged oppositely up and down to rotate through the transmission box of the prior art, the upper driving rod drives the cutting knife group to segment the waste material through the fixed disc, and the waste material after the first treatment falls into the fixed cylinder, and the lower driving rod drives the crushing knife group to crush the waste material in the fixed cylinder; due to the push block provided on the crushing knife group, on the one hand, the push block hits the waste material to assist the crushing knife group in crushing, and on the other hand, the push block is in contact with the inner wall of the fixed cylinder, and when the push block rotates, the waste material in the fixed cylinder can be extruded through the inner through hole; the crushed material then enters the active cavity between the fixed cylinder and the separation plate, and the lower driving rod drives the pair of fixed rods at the same time, so that the press wheels on the fixed rods rotate in the active cavity, and the press wheels are in close contact with the outer wall of the separation plate, so that the crushed material in the active cavity can be extruded through the outer through hole.

[0009] In the technical scheme, preferably, the feeding cover, the first baffle, the fixed cylinder and the separation plate are sequentially arranged from top to bottom, a communication port is formed between the first baffle and the fixed cylinder, the bottom end of the fixed cover is fixedly connected with a discharging cover in communication, the fixed support is located on the side wall of the first baffle, and a slot is formed in the fixed support; the separation plate is in a U-shaped structure, both ends of the U-shaped separation plate are fixedly connected with an integrated insertion plate, the outer end of the insertion plate is fixedly connected with a baffle, the outer wall of the baffle is fixedly connected with a handle, the handle is inserted into the slot in a plug-fit manner, the inner wall of the separation plate is fixedly connected with a baffle ring, the baffle ring has the same size as the separation plate, a slot with a size suitable for the separation plate is formed in the fixed cover and the fixed support, and the baffle on the separation plate is in contact with the outer wall of the fixed cover when the separation plate is fixedly inserted into the slot; the handle can be used to quickly disassemble the separation plate, the applicability of the equipment is improved, different aperture separation plates can be conveniently replaced according to different production requirements, and diversified processing requirements can be met; in addition, the cleaning and maintenance process of the separation plate is optimized, and the separation plate can be disassembled and assembled without disassembling the entire equipment.

[0010] In the technical scheme, preferably, the connection between the first baffle and the fixed cylinder is in an inclined structure, and the connection between the feeding cover and the first baffle is in an inclined structure; the movable cavity is an annular groove, the annular groove is connected with the movable cavity through an outer through hole, the annular groove is connected with the movable cavity through an inner through hole, the baffle ring is located in the middle of the separation plate, the baffle ring is located between a pair of the compression rollers when the separation plate is inserted below the fixed cylinder, a slot with a size suitable for the separation plate is formed in the outer wall of the fixed cover, the baffle is in contact with the outer wall of the fixed cover when the separation plate is fixedly inserted into the slot, the first baffle is connected with the fixed cylinder through the communication port, and a sealing plate is fixedly connected between the communication port and the movable cavity.

[0011] Compared with the prior art, the present application has the following advantages: 1. The present application solves the problems of wide particle size distribution and poor uniformity of soft and hard mixed waste materials in a single crushing process by setting a primary crushing structure and a secondary crushing structure to perform staged crushing, first cutting off large pieces and soft materials prone to winding, and then uniformly crushing, thereby providing raw materials with uniform particle size for subsequent melting, solving the problem of incomplete crushing and different particle sizes caused by using the same crushing method for different materials in the prior art, and thereby improving the efficiency of subsequent melting of waste materials.

[0012] 2. The application is tightly matched with the inner wall of the fixed cylinder through the push block on the crushing knife group, and in the crushing process, the push block can extrude the crushed material through the inner through hole, prevent the elastic crushed material from sticking together, cause easy accumulation and blockage in the fixed cylinder, at the same time, the tight contact between the compression wheel and the inner wall of the separation plate can extrude the crushed material in the movable cavity through the outer through hole, further prevent the crushed material from blocking.

[0013] 3. The application sets up the separable separation plate, through the cooperation of the handle and the slot, the operator can quickly replace the separation plate with different aperture to adapt to different production requirements, meet the requirements of different particle size, improve the applicability of the equipment, make the same equipment can handle different waste, optimize the quality of recycled material, improve the adaptability and potential recycling value of the recycling system. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic diagram of automobile key three-color reverse injection mold; Figure 2 It is a first perspective view of the crushing structure of the automobile key three-color reverse injection mold; Figure 3 It is a second perspective view of the crushing structure of the automobile key three-color reverse injection mold; Figure 4 It is a third perspective view of the crushing structure of the automobile key three-color reverse injection mold; Figure 5 It is a crushing mechanism schematic diagram in the crushing structure of the automobile key three-color reverse injection mold; Figure 6 It is Figure 2 A schematic diagram of the enlarged structure in the middle; Figure 7 It is Figure 2 A schematic diagram of the enlarged structure in the middle B; Figure 8 It is Figure 3 A schematic diagram of the enlarged structure in the middle C; Figure 9 It is Figure 3 A schematic diagram of the enlarged structure in the middle D; Figure 10 It is Figure 3 A schematic diagram of the enlarged structure in the middle E; Figure 11 It is a separation plate schematic diagram in the crushing structure of the automobile key three-color reverse injection mold.

[0015] In the figure: 1. Main frame; 2. Melting and feeding mechanism; 3. Crushing mechanism; 4. Motor; 5. Transmission box; 6. Feed hood; 7. Fixed cover; 8. Primary crushing structure; 9. Secondary crushing structure; 10. First baffle; 11. Fixed support; 12. Fixed cylinder; 13. Separation plate; 14. Retaining ring; 15. Connecting port; 16. Movable chamber; 17. Slot; 18. Insert plate; 19. Fixed plate; 20. Cutting blade assembly; 21. Crushing blade assembly; 22. Push block; 23. External through hole; 24. Internal through hole; 25. Fixed rod; 26. Pressure roller; 27. Handle; 28. Discharge hood. Detailed Implementation

[0016] 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.

[0017] like Figures 1 to 11 As shown, the present invention provides a three-color inverted injection mold for automotive buttons, including a main frame 1, and a melting and feeding mechanism 2, a crushing mechanism 3, a motor 4, and an injection mold disposed on the main frame 1. The crushing mechanism 3 is used to crush waste materials, and the melting and feeding mechanism 2 is used to melt waste materials and feed them. It also includes a crushing component, which is installed in a fixed cover 7 on the main frame 1. The crushing component includes a primary crushing structure 8 and a secondary crushing structure 9. When the waste material enters the fixed cover 7 and passes through the primary crushing structure 8 and the secondary crushing structure 9, the waste material is cut and crushed respectively.

[0018] The crushing assembly also includes a feed hood 6 fixedly connected to the top of the fixed cover 7, and a first baffle 10, a fixed support 11, a fixed cylinder 12, and a separation plate 13 located inside the fixed cover 7. The primary crushing structure 8 is rotatably connected inside the first baffle 10. The primary crushing structure 8 includes a drive rod, a fixed disc 19, and a cutting blade assembly 20. The secondary crushing structure 9 is rotatably connected inside the fixed cylinder 12. The secondary crushing structure 9 includes a drive rod, a crushing blade assembly 21, and a pusher block 22. The drive rods in both the primary crushing structure 8 and the secondary crushing structure 9 are connected to the transmission box 5 mounted on the motor 4.

[0019] A movable cavity 16 is formed between the fixed cylinder 12 and the separation plate 13. A pair of fixed rods 25 are fixedly connected to the drive rod in the secondary crushing structure 9. Each fixed rod 25, away from the drive rod, is rotatably connected to a pressure roller 26. The pressure rollers 26 contact the inner wall of the separation plate 13. The push block 22 on the crushing blade assembly 21 contacts the inner wall of the fixed cylinder 12. The fixed cylinder 12 includes an inner through hole 24, and the separation plate 13 includes an outer through hole 23. The pressure roller 26 is made of hard material. During use, the motor 4 drives two vertically opposed drive rods to rotate via the existing transmission box 5. The upper drive rod drives the cutting unit 20 to segment and cut the waste material into blocks via the fixed disc 19. The waste material that has undergone primary processing falls into the fixed cylinder 12. The lower drive rod drives the crushing blade assembly 20 to crush the waste material inside the fixed cylinder 12. Because the crushing blade assembly 20 is equipped with push blocks 22, on the one hand, the push blocks 22 strike the waste material, assisting the crushing blades. Group 20 is crushed. On the other hand, push block 22 contacts the inner wall of fixed cylinder 12. When push block 22 rotates, it can squeeze the crushed material in fixed cylinder 12 through inner through hole 24. The crushed material then enters the movable cavity 16 between fixed cylinder 12 and separation plate 12. The drive rod below simultaneously drives a pair of fixed rods 25, causing the pressure roller 26 on the fixed rod 25 to rotate in the movable cavity 16. The advantage of this setting is that the pressure roller 26 is close to the outer wall of separation plate 13, which can squeeze the crushed material in movable cavity 16 through outer through hole 23, thereby achieving the purpose of crushing the crushed material again. Therefore, it can prevent the problem of excessive difference in the size of crushed material particles. In addition, the holes on outer through hole 23 are set with different sizes of holes, which is conducive to squeezing the crushed material into the required size. The above structure can better crush waste materials of different materials and improve the uniformity of the size of crushed material particles by segmenting and crushing the waste material, which is conducive to the subsequent melting process.

[0020] In addition, the pressure roller 26 presses against the inner wall of the separation plate 13. If the debris gets stuck in the outer through hole 23 on the separation plate 13, as new debris continues to enter the active cavity 16, the pressure roller 26 will squeeze the new debris out through the outer through hole 23, thus squeezing out the waste material in the outer through hole 23, thereby preventing the debris from getting stuck. Correspondingly, the cooperation between the push plate 22 and the inner wall of the fixed cylinder 12 is as described above. The feed hood 6, the first baffle 10, the fixed cylinder 12, and the separating plate 13 are arranged sequentially from top to bottom. A communication port 15 is formed between the first baffle 10 and the fixed cylinder 12. The bottom end of the fixed hood 7 is fixedly connected to a communicating discharge hood 28. The fixed bracket 11 is located on the side wall of the first baffle 10, and a slot 17 is provided inside the fixed bracket 11. The separating plate 13 has a U-shaped structure, and both ends of the U-shaped separating plate 13 are fixedly connected to an integral insert plate 18. A baffle is fixedly connected to the outer end of the insert plate 18, and a handle 27 is fixedly connected to the outer wall of the baffle. The insert plate 18 and the slot 17 are inserted and fitted together. A retaining ring 14 is fixedly connected to the inner wall of the separating plate 13. The retaining ring 14 and the separating plate 13 are the same size. Furthermore, the fixed cover 7 and the fixed bracket 11 are provided with slots 30 that are adapted to the size of the separation plate 13. When the separation plate 13 is inserted into the slot 30 and fixed, the baffle on the separation plate 13 contacts the outer wall of the fixed cover 7. The operator can use the handle 27 to quickly disassemble the separation plate 13, which improves the applicability of the equipment and allows for convenient replacement of separation plates with different apertures according to different production needs to meet diverse processing requirements. In addition, the cleaning and maintenance process of the separation plate 13 has been optimized. The disassembly and assembly of the separation plate 13 can be completed without disassembling the entire equipment, which greatly reduces maintenance costs and time loss, thereby improving the continuity of production and overall efficiency.

[0021] It should be noted that the baffle and the outer wall of the fixed cover 7 are equipped with existing technology locking structures to prevent the separation plate 13 from shifting during operation.

[0022] The connection between the first baffle 10 and the fixed cylinder 12 is an inclined structure, and the connection between the feed hood 6 and the first baffle 10 is also an inclined structure. The inclined structure facilitates the material in the feed hood 6 to enter the cavity formed by the first baffle 10, and facilitates the material to enter the fixed cylinder 12 through the cavity formed by the first baffle 10.

[0023] The movable cavity 16 is an annular groove, which is connected to the movable cavity 16 through the outer through hole 23 and the inner through hole 24. The retaining ring 14 is located in the middle of the separating plate 13. When the separating plate 13 is inserted below the fixed cylinder 12, the retaining ring 14 is located between a pair of pressure rollers 26. The function of the retaining ring 14 is to seal the aperture between the pair of pressure rollers 26, preventing the middle part from being squeezed by the pressure rollers 26 and easily becoming blocked. The retaining ring 14 is made of rubber and has a triangular cross-section. The rubber material will not affect the insertion and installation of the separating plate 13. At the same time, the triangular structure facilitates the sliding of debris on the outer wall of the retaining ring 14, further preventing debris accumulation. The first baffle 10 is connected to the fixed cylinder 12 through the connecting port 15. A sealing plate is fixedly connected between the connecting port 15 and the movable cavity 16.

[0024] In addition, alternative solutions include a sorting mechanism located between the main frame (1) and the injection mold, and at least two independent waste disposal channels located downstream of the sorting mechanism; The sorting mechanism is used to identify the waste discharged from the mold and sort it into the corresponding waste processing channel according to at least one of its characteristics, such as color, material or origin. At least one isolation plate is provided inside the fixed cover 7 so that an isolation channel connected to the waste processing channel is formed inside the fixed cover 7. This sorting mechanism is existing technology and uses intelligent color recognition to automatically sort waste of different materials, which will not be described in detail here.

[0025] The working principle and usage process of this invention: When the injection mold is working, some of the waste material generated falls into the device through the feed hood 6. The operator can also throw the injection molded scrap into the device together. Since the connection between the feed hood 6 and the first baffle 10 is designed as an inclined structure, the waste material can smoothly roll down along the inclined surface into the cavity formed by the first baffle 10, preparing for the subsequent crushing process. It should be noted that the above process is mixed crushing, and the crushed mixture can only be used for processing workpieces with low aesthetic requirements.

[0026] If an alternative solution is adopted, namely the intelligent sorting mechanism in the existing technology, an isolation plate is set inside the fixed cover 7 to form an isolation channel connected to the waste treatment channel inside the fixed cover 7; and the melting feeding mechanism 2 is in multiple groups and connected to multiple independent channels. The crushed scrap enters the corresponding injection hole of the injection mold through different groups of melting feeding mechanisms 2, and the crushing and melting processing of different materials do not affect each other.

[0027] During operation, after the motor 4 starts, it drives two drive rods arranged vertically opposite each other to rotate through the transmission box 5. The drive rod located above drives the cutting blade assembly 20 to segment and cut the waste material into blocks through the fixed plate 19. During the rotation process, the cutting blade assembly 20 uses its blades to cut the waste material into several smaller blocks. The purpose is to initially decompose the waste material into sizes that are easy to further crush, thereby improving the crushing efficiency and effect of the entire device.

[0028] After initial crushing, the waste material falls into the fixed cylinder 12. At this time, the drive rod below drives the pressure roller 26 to rotate in the movable cavity 16 through the fixed rod 25. The pressure roller 26 is in close contact with the inner wall of the separation plate 13. When the pressure roller 26 rotates, it will squeeze the waste material fragments in the movable cavity 16. At the same time, during the rotation of the crushing blade assembly 21, the push block 22 on it contacts the inner wall of the fixed cylinder 12. During the rotation, the push block 22 applies a pushing force to the waste material fragments, assisting the crushing blade assembly 21 to complete the crushing action. The crushed fragments are squeezed out through the inner through hole 24 on the fixed cylinder 12 and enter the movable cavity 16 between the fixed cylinder 12 and the separation plate 13.

[0029] Inside the active chamber 16, the pressure roller 26 continues to extrude the scrap material. The scrap material is further crushed and extruded through the external through-hole 23 on the separation plate 13. The diameter of the external through-hole 23 is designed to be different sizes, so that the final size of the waste scrap material can be controlled according to the actual production needs to ensure that it meets the requirements of the subsequent pressing process. After multiple crushing and extrusion processes, the waste scrap material finally falls onto the discharge hood 28. The discharge hood 28 is connected to the feed port of the melting feeding mechanism 2. The scrap material is then transported to the melting feeding mechanism 2 and reintroduced into the injection mold for reuse.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-color inverted injection mold for automotive buttons, characterized in that: It includes a main frame (1), a melting and feeding mechanism (2), a crushing mechanism (3), a motor (4) and an injection mold, all mounted on the main frame (1). The crushing mechanism (3) is used to crush waste materials, and the melting and feeding mechanism (2) is used to melt waste materials and feed them. It also includes a crushing component, which is set in a fixed cover (7) on the main frame (1). The crushing component includes a primary crushing structure (8) and a secondary crushing structure (9). When the waste enters the fixed cover (7) and passes through the primary crushing structure (8) and the secondary crushing structure (9), the waste is cut and crushed respectively.

2. The automotive button three-color inverted injection mold according to claim 1, characterized in that, The crushing assembly also includes a feed hood (6) fixedly connected to the top of the fixed cover (7), a first baffle (10), a fixed support (11), a fixed cylinder (12), and a separation plate (13) located inside the fixed cover (7). The primary crushing structure (8) is rotatably connected inside the first baffle (10). The primary crushing structure (8) includes a drive rod, a fixed disk (19), and a cutting blade assembly (20). The secondary crushing structure (9) is rotatably connected inside the fixed cylinder (12). The secondary crushing structure (9) includes a drive rod, a crushing blade assembly (21), and a pusher block (22). The drive rods in both the primary crushing structure (8) and the secondary crushing structure (9) are connected to the transmission box (5) mounted on the motor (4).

3. The automotive button three-color inverted injection mold according to claim 2, characterized in that, A movable cavity (16) is formed between the fixed cylinder (12) and the separation plate (13). The drive rod in the secondary crushing structure (9) is fixedly connected to a pair of fixed rods (25). The ends of the pair of fixed rods (25) away from the drive rod are rotatably connected to pressure rollers (26). The pressure rollers (26) are in contact with the inner wall of the separation plate (13).

4. The automotive button three-color inverted injection mold according to claim 3, characterized in that, The push block (22) on the crusher assembly (21) is in contact with the inner wall of the fixed cylinder (12), and the fixed cylinder (12) includes an inner through hole (24), and the separation plate (13) includes an outer through hole (23).

5. The automotive button three-color inverted injection mold according to claim 4, characterized in that, The feed hood (6), the first baffle (10), the fixed cylinder (12), and the separation plate (13) are arranged sequentially from top to bottom. A communication port (15) is formed between the first baffle (10) and the fixed cylinder (12). The bottom end of the fixed hood (7) is fixedly connected to a communicating discharge hood (28). The fixed support (11) is located on the side wall of the first baffle (10). A slot (17) is provided in the fixed support (11). The separation plate (13) is a U-shaped structure. Both ends of the U-shaped separation plate (13) are fixedly connected to an integral insert plate (18). The outer end of the insert plate (18) is fixedly connected to a baffle. The outer wall of the baffle is fixedly connected to a handle (27). The handle (27) and the slot (17) are inserted and engaged.

6. The automotive button three-color inverted injection mold according to claim 5, characterized in that, A retaining ring (14) is fixedly connected to the inner wall of the separation plate (13), and the retaining ring (14) and the separation plate (13) are the same size.

7. The automotive button three-color inverted injection mold according to claim 6, characterized in that, The connection between the first baffle (10) and the fixed cylinder (12) is an inclined structure, and the connection between the feed hood (6) and the first baffle (10) is an inclined structure.

8. The automotive button three-color inverted injection mold according to claim 6, characterized in that, The movable cavity (16) is an annular groove. The annular groove is connected to the movable cavity (16) through the outer through hole (23) and the annular groove is connected to the movable cavity (16) through the inner through hole (24). The retaining ring (14) is located in the middle of the separating plate (13). When the separating plate (13) is inserted below the fixed cylinder (12), the retaining ring (14) is located between a pair of pressure rollers (26).

9. The automotive button three-color inverted injection mold according to claim 8, characterized in that, Furthermore, the outer wall of the fixing cover (7) is provided with a slot that is adapted to the size of the separation plate (13). When the separation plate (13) is inserted into the slot and fixed, the baffle and the outer wall of the fixing cover (7) are in contact. The first baffle (10) is connected to the fixed cylinder (12) through the connecting port (15), and a sealing plate is fixedly connected between the connecting port (15) and the movable cavity (16).

10. The automotive button three-color inverted injection mold according to any one of claims 1-9, characterized in that, It includes a sorting mechanism disposed between the main frame (1) and the injection mold, and at least two independent waste disposal channels disposed downstream of the sorting mechanism; The sorting mechanism is used to identify the waste discharged from the mold and sort it into the corresponding waste processing channel according to at least one of its characteristics, such as color, material or origin. At least one isolation plate is provided inside the fixed cover (7) so that an isolation channel connected to the waste processing channel is formed inside the fixed cover (7).

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