Injection mold for recycling plastic waste

Abstract

The application discloses a plastic waste recycling injection mold, which comprises a movable mold and a fixed mold, a lifting plate is connected to the inside of the setting groove through a driving assembly, a cutter for cutting the injection groove accumulated material is arranged on the lifting plate, a driving cylinder is arranged in the driving cylinder, an auxiliary assembly is arranged in the movable mold, a conveying capsule is arranged on the auxiliary assembly, a blowing assembly is connected to the output end of the conveying capsule, and a vibrating assembly is arranged in the setting groove. The plastic waste recycling injection mold, the cutter on the lifting plate separates the injection groove accumulated material in the injection nozzle from the molded part in the fixed mold, has a simple overall structure, reduces the maintenance inconvenience caused by the complex structure, reduces the mold adaptability caused by the large structure, and through the cooperation of the vibrating assembly and the blowing assembly, the injection groove accumulated material can be completely cleaned, and the cost problem of secondary treatment is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of injection molds, and particularly relates to an injection mold capable of recycling plastic waste. BACKGROUND

[0002] An injection mold is a key tool for producing plastic products through an injection molding process, in which plastic raw materials are heated to a molten state and injected into the mold, and after cooling and solidification, a plastic product with a predetermined shape is formed. However, with the wide application of the injection molding process, the recycling and reuse of plastic waste have become an important means to reduce production costs and environmental pollution. At present, the existing injection mold still has some defects in actual application, especially after the mold is produced, excess waste is easily generated on the surface of the mold, which not only affects the production efficiency, but also may cause waste of raw materials.

[0003] In order to overcome the above-mentioned defects, the existing technology one (Chinese patent with patent number CN119704552A and publication date of March 28, 2025) is a battery tank injection mold and an edge waste treatment and recycling device thereof, which comprises a fixed mold and a movable mold. The lower end of the fixed mold is provided with an assembly seat. The movable mold is provided with a demolding module. A sink is formed in the fixed mold. An injection hole is formed at the end of the sink away from the fixed mold. Outer side clamping strips are distributed around the side wall of the sink to reduce the friction force of the injection molded part when demolding from the outside. A top plate is installed in the movable mold. A top pin rod is arranged on the top plate. A hinge seat is installed on the movable mold. A group of pressing arms are rotatably installed on the hinge seat. Inner side clamping strips are distributed around the side wall of the demolding module to reduce the friction force of the injection molded part when demolding from the inside. The mold can reduce the area of the inner and outer sides in contact with the mold when the injection molded part is demolded, so as to reduce stress concentration and friction, and reduce the possibility of the molded part being stuck in the mold. The edge waste treatment and recycling device can timely polish and recycle the edge burrs of the injection molded part. The existing technology two (Chinese patent with patent number CN211566756U and publication date of September 25, 2020) is a spare tire compartment injection mold with a floating positioning mechanism, which belongs to the injection mold. The injection mold cavity and the injection mold core are included. The injection mold core seat is fixedly connected inside the injection mold core. The oil cylinder of the floating positioning mechanism is fixedly connected to the upper part of the inside of the floating positioning mechanism seat. The bottoms of the two profiled positioning pins are fixedly connected to the upper part of the positioning pin connecting plate through screws. The two profiled positioning pins and the positioning pin connecting plate are located outside the floating positioning mechanism seat, and the two profiled positioning pins are slidably connected with the hole channel in the injection mold core. The front ends of the two profiled positioning pins are located outside the injection mold core. The cylinder rod of the oil cylinder is fixedly connected to the lower middle part of the positioning pin connecting plate.

[0004] Although the prior art can reduce the waste of resources, in the working process, the structure is used to timely polish and recycle the edge burr of the injection molded part, and the floating positioning mechanism reduces the gap between the molds, the overall structure is complex, the manufacturing difficulty and cost of the mold are increased, and the overall space is large, which affects the adaptability of the mold, the excess plastic raw material in the mold injection nozzle is taken away by the molded part, unnecessary injection nozzle accumulated material is left on the molded part, therefore, secondary treatment is needed, which increases the production process, production cost and time.

[0005] In view of the above problems, it is urgent to make innovative design on the basis of the original plastic waste recycling injection mold, therefore, the plastic waste recycling injection mold can well solve the above problems. SUMMARY

[0006] The present application aims to provide a plastic waste recycling injection mold to solve the problem of the current market through the structure of the injection molded part edge burr timely polishing and recycling and the floating positioning mechanism reducing the gap between the molds, the overall structure is complex, the manufacturing difficulty and cost of the mold are increased, and the overall space is large, which affects the adaptability of the mold, the excess plastic raw material in the mold injection nozzle is taken away by the molded part, unnecessary injection nozzle accumulated material is left on the molded part, therefore, secondary treatment is needed, which increases the production process, production cost and time.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a plastic waste recycling injection mold, comprising a movable mold and a fixed mold, the movable mold is moved by a driving cylinder, the fixed mold is internally provided with an injection nozzle, the fixed mold is internally provided with a storage groove, the storage groove is internally connected with a lifting plate through a driving assembly, the lifting plate is provided with a cutter for cutting the injection nozzle accumulated material, the driving cylinder is internally driven by a gas to move a rod, the movable mold is internally provided with an auxiliary assembly, the auxiliary assembly is provided with a conveying capsule, the conveying capsule is connected with a blowing assembly at the output end, and the storage groove is internally provided with a vibration assembly.

[0008] Preferably, the auxiliary assembly comprises a cavity opened in the movable mold, the moving rod is in contact with the ejector after moving, the ejector is located in the cavity, the moving rod is located in the conveying capsule, and the moving rod is extruded when moving.

[0009] Preferably, the driving assembly comprises a telescopic cylinder installed in the storage groove, and the telescopic cylinder is connected to the bottom of the lifting plate at the output end.

[0010] Preferably, the blowing assembly comprises a conveying pipe connected to the output end of the conveying capsule, the output end of the conveying pipe is connected with a first pipe and a second pipe through a joint, the end of the first pipe and the second pipe is located in the inner wall of the injection nozzle, and the first pipe and the second pipe internally convey gas in one direction.

[0011] Preferably, the storage groove is internally provided with a conveying cylinder, the first pipe is connected in the conveying cylinder, an annular conveying cavity is formed in the conveying cylinder, the conveying cavity is communicated with the inner cavity of the conveying cylinder through an interface, the first pipe is communicated with the conveying cavity through the inner cavity of the conveying cylinder, the interface of the inner cavity of the conveying cylinder is matched with the blocking rod, and the blocking rod is connected to the bottom of the lifting plate.

[0012] Preferably, the vibration assembly comprises a tooth block mounted on the side end of the lifting plate, the storage groove is internally provided with a support, the support is connected with a gear through a rotating shaft, the gear is engaged with the tooth block, the rotating shaft is provided with a knocking piece for knocking the storage groove and the injection nozzle, and a torsional spring for rebounding is arranged on the outer side of the rotating shaft.

[0013] Preferably, the driving assembly comprises a first electromagnetic block mounted in the storage groove, the first electromagnetic block is matched with a second electromagnetic block, and the second electromagnetic block is mounted at the bottom of the lifting plate.

[0014] Preferably, the driving assembly comprises a positioning rod and a spring mounted in the storage groove, the positioning rod is connected in the lifting plate, and the positioning rod is provided with the spring on the outer side.

[0015] Preferably, the storage groove is internally provided with a storage box, the storage box is internally provided with a driving piece, the output end of the driving piece is connected with a forward and reverse screw rod, the outer side of the forward and reverse screw rod is connected with a moving plate in penetration, the moving plate is internally connected with a guide rod in penetration, the upper end of the moving plate is connected with an inclined block, the inclined block is arranged in an inverted trapezoidal shape, and the inclined block is located on the surface of the lifting plate.

[0016] Compared with the prior art, the injection mold for recycling plastic waste has the advantages that: the cutter on the lifting plate separates the injection nozzle accumulated material in the injection nozzle from the molded part in the fixed mold, the overall structure is simple, the problems of inconvenient maintenance caused by the setting of complex structure and the reduction of mold adaptability caused by the setting of large structure are reduced, the injection nozzle accumulated material can be completely cleaned through the cooperation of the vibration assembly and the blowing assembly, and the cost problem of secondary treatment is reduced.

[0017] The cutter on the lifting plate separates the injection nozzle accumulated material in the injection nozzle from the molded part in the fixed mold, the overall structure is simple, the problems of inconvenient maintenance caused by the setting of complex structure and the reduction of mold adaptability caused by the setting of large structure are reduced, the problems of inconvenient maintenance caused by the setting of complex structure and the reduction of mold adaptability caused by the setting of large structure are reduced.

[0018] The gas in the conveying cylinder is output through the first pipeline, and the gas sprayed by the first pipeline and the second pipeline loosens the injection nozzle accumulation in the injection nozzle, the energy generated during demolding is utilized as a whole, the gas is transmitted to the injection nozzle, the accumulation is loosened, and the accumulation is collected in the later period.

[0019] The striker hits the storage groove, so that the injection nozzle vibrates, the injection nozzle accumulation is shaken and falls, and through the cooperation of the vibration assembly and the air blowing assembly, the injection nozzle accumulation can be thoroughly cleaned, and the waste recycling effect is improved.

[0020] The flexible movement of the lifting plate is realized through the electromagnetic driving structure, the overall driving response speed is fast, the separation operation of the cutter on the accumulation can be quickly realized, the efficiency of waste recycling is effectively improved, the electromagnetic force is accurately adjusted by controlling the current size, and the applicability of the mold is enhanced.

[0021] The lifting plate moves upward through the rebound of the spring, so that the lifting plate drives the upper cutter to separate the injection nozzle accumulation in the injection nozzle from the molded part in the fixed mold, the whole structure runs stably and reliably, and maintenance is facilitated in the later period. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure diagram of the present application;

[0023] Figure 2 It is the overall structure diagram of the present application;

[0024] Figure 3 It is the dynamic mold structure diagram of the present application;

[0025] Figure 4 It is the fixed mold structure diagram of the present application;

[0026] Figure 5 It is the fixed mold structure diagram of the present application;

[0027] Figure 6 It is the telescopic air cylinder and lifting plate connection structure diagram of the present application;

[0028] Figure 7 It is the shaft and torsional spring connection structure diagram of the present application;

[0029] Figure 8 It is the conveying cylinder structure diagram of the present application;

[0030] Figure 9 It is the second electromagnetic block and lifting plate connection structure diagram of the present application;

[0031] Figure 10 It is the positioning rod and lifting plate structure diagram of the present application;

[0032] Figure 11 This is a schematic diagram of the tilting block and lifting plate structure of the present invention.

[0033] In the diagram: 1. Moving mold; 2. Fixed mold; 3. Drive cylinder; 4. Injection nozzle; 5. Storage slot; 6. Telescopic cylinder; 7. Lifting plate; 8. Cutter; 9. Moving rod; 10. Cavity; 11. Ejector; 12. Conveying bladder; 13. Conveying pipe; 14. Conveying cylinder; 15. First pipe; 16. Second pipe; 17. Conveying cavity; 18. Interface; 19. Blocking rod; 20. Tooth block; 21. Gear; 22. Rotating shaft; 23. Support; 24. Impact component; 25. Torsion spring; 26. First electromagnetic block; 27. Second electromagnetic block; 28. Positioning rod; 29. ​​Spring; 30. Storage box; 31. Drive component; 32. Positive and negative screws; 33. Guide rod; 34. Moving plate; 35. Tilting block. Detailed Implementation

[0034] 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.

[0035] Example 1: In this example, the cutter 8 on the lifting plate 7 separates the material accumulated inside the injection nozzle 4 from the molded part inside the fixed mold 2, reducing the cost of secondary processing. Figures 1-8The technical scheme shown includes the movable mold 1 and the fixed mold 2, the movable mold 1 moves through the driving cylinder 3, the fixed mold 2 is internally provided with the injection nozzle 4, the fixed mold 2 is internally provided with the storage groove 5, the storage groove 5 is internally connected with the lifting plate 7 through the driving assembly, the lifting plate 7 is provided with the cutter 8 for cutting the injection nozzle accumulated material, the driving cylinder 3 is internally driven to move the rod 9 through the gas, the movable mold 1 is internally provided with the auxiliary assembly, the auxiliary assembly is provided with the conveying capsule 12, the conveying capsule 12 is connected with the air blowing assembly at the output end, the storage groove 5 is internally provided with the vibration assembly, the auxiliary assembly includes the cavity 10 internally provided in the movable mold 1, the rod 9 moves and is in contact with the ejection element 11, the ejection element 11 is internally located in the cavity 10, the rod 9 is internally located in the conveying capsule 12, the rod 9 moves and extrudes the conveying capsule 12, the driving assembly includes the telescopic cylinder 6 installed in the storage groove 5, the telescopic cylinder 6 is connected at the bottom of the lifting plate 7 at the output end, the air blowing assembly includes the conveying pipeline 13 connected at the output end of the conveying capsule 12, the conveying pipeline 13 is connected with the first pipeline 15 and the second pipeline 16 through the joint at the output end, the first pipeline 15 and the second pipeline 16 are internally located in the inner wall of the injection nozzle 4 at the end, and the gas is unidirectionally conveyed in the first pipeline 15 and the second pipeline 16, the storage groove 5 is internally provided with the conveying cylinder 14, the first pipeline 15 is connected in the conveying cylinder 14, the conveying cylinder 14 is annularly provided with the conveying cavity 17 internally, the conveying cavity 17 is in communication with the inner cavity of the conveying cylinder 14 through the interface 18, the first pipeline 15 is in communication with the conveying cavity 17 through the inner cavity of the conveying cylinder 14, the interface 18 of the inner cavity of the conveying cylinder 14 is matched with the blocking rod 19, the blocking rod 19 is connected at the bottom of the lifting plate 7, the vibration assembly includes the tooth block 20 installed at the side end of the lifting plate 7, the storage groove 5 is internally provided with the support 23, the support 23 is connected with the gear 21 through the rotating shaft 22 at the top, the gear 21 is engaged with the tooth block 20, the rotating shaft 22 is provided with the knocking element 24 for knocking the storage groove 5 and the injection nozzle 4, the rotating shaft 22 is provided with the torsional spring 25 for rebounding at the outside, the driving cylinder 3 drives the movable mold 1 of the injection mold to move to the side end of the fixed mold 2, at this time, the plastic raw material is conveyed to the injection nozzle 4 and flows into the movable mold 1 and the fixed mold 2 through the injection nozzle 4, the cooling structure of the injection machine is started to cool and solidify the formed part in the movable mold 1 and the fixed mold 2, at this time, the driving assembly in the storage groove 5 is opened, the driving assembly of the embodiment is the telescopic cylinder 6, the lifting plate 7 at the top is driven to move through the telescopic cylinder 6, the cutter 8 on the lifting plate 7 separates the injection nozzle accumulated material in the injection nozzle 4 from the formed part in the fixed mold 2, the connection between the accumulated material and the formed part can be accurately cut off, the accumulated material is prevented from adhering to the formed part in the subsequent demolding process, the appearance quality of the formed part is ensured, the injection nozzle accumulated material is convenient to collect, the waste residue is reduced, the efficiency of waste recovery is improved, the overall structure is simple, the problem that the maintenance is inconvenient due to the complex structure is reduced, at this time, the movable mold 1 is driven to move the formed part through the driving cylinder 3, the gas is injected into the driving cylinder 3 to extrude the rod 9 to move,The moving rod 9 drives the ejection element 11 to move inside the cavity 10, which facilitates the pushing of the formed element out of the movable mold 1, improves the automation degree of the device demolding and production efficiency, and extrudes the conveying capsule 12 when the moving rod 9 moves inside the driving cylinder 3, so that the gas inside the conveying capsule 12 is transmitted to the conveying cylinder 14 and the second pipeline 16 through the conveying pipeline 13, the gas inside the conveying cylinder 14 is output through the first pipeline 15, and the gas sprayed from the first pipeline 15 and the second pipeline 16 loosens the injection nozzle accumulated material inside the injection nozzle 4. The energy generated during the demolding process is used to transmit the gas to the injection nozzle, so that the accumulated material is loosened, which facilitates the collection of the accumulated material in the later stage, the overall energy consumption is low, the overall resource utilization rate is improved, the cutter 8 on the upper end of the lifting plate 7 is driven downward by the telescopic cylinder 6, at this time the blocking rod 19 on the side end of the lifting plate 7 moves into the conveying cylinder 14, when the blocking rod 19 moves to the interface 18 of the conveying cylinder 14, the channel inside the conveying cavity 17 and the first pipeline 15 is blocked, so that the gas passing through the second pipeline 16 is pressurized and blown out, so that the injection nozzle accumulated material inside the injection nozzle 4 is blown out, which facilitates the collection of the injection nozzle accumulated material in the later stage, reduces the waste of resources, and the overall structure is simple, reduces the problem that the mold adaptability is reduced due to the setting of a larger structure, when the lifting plate 7 moves up and down, the tooth block 20 on the side end thereof contacts the gear 21 on the support 23, the gear 21 is driven to rotate by the tooth block 20, the gear 21 drives the rotating shaft 22 to rotate, which facilitates the striker 24 on the rotating shaft 22 to hit the placing groove 5, so that the injection nozzle 4 vibrates, which facilitates the injection nozzle accumulated material to shake and fall, through the cooperation of the vibration assembly and the blowing assembly, the injection nozzle accumulated material can be completely cleaned, which improves the effect of waste recycling, and since the torsional spring 25 is arranged on the outer side of the rotating shaft 22, when the tooth block 20 moves away from the surface of the gear 21, the rotating shaft 22 drives the gear 21 to return to the initial position through the rebound of the torsional spring 25, which reduces the problem that the overall production process is increased due to the injection nozzle accumulated material on the formed element, and reduces the overall production cost and time.

[0036] In this embodiment, the flexible movement of the lifting plate 7 is realized by an electromagnetic driving structure, the overall driving response speed is fast, and the separation operation of the cutter 8 on the accumulated material can be quickly realized, specifically as Figures 1-4 and Figure 9As shown in the first electromagnetic block 26 and the second electromagnetic block 27, it is disclosed that: the driving assembly includes the first electromagnetic block 26 installed inside the storage groove 5, and the first electromagnetic block 26 is matched with the second electromagnetic block 27 installed at the bottom of the lifting plate 7. The driving assembly of the embodiment is the matching structure of the first electromagnetic block 26 and the second electromagnetic block 27. The magnetic force is generated by energizing the first electromagnetic block 26 and the second electromagnetic block 27, so that the lifting plate 7 moves up and down, changes the magnetism of the first electromagnetic block 26, and when the magnetism of the first electromagnetic block 26 and the second electromagnetic block 27 is opposite, the two generate suction force, which facilitates the downward movement of the lifting plate 7 through the cooperation of the second electromagnetic block 27. When the magnetism of the first electromagnetic block 26 and the second electromagnetic block 27 is the same, the two generate repulsion, which facilitates the upward movement of the lifting plate 7 driven by the second electromagnetic block 27, and facilitates the separation of the injection nozzle accumulated material inside the injection nozzle 4 from the molded part in the fixed mold 2 by the cutting knife 8 at the upper end of the lifting plate 7. The flexible movement of the lifting plate 7 is realized through the electromagnetic driving structure, the overall driving response speed is fast, the separation operation of the cutting knife 8 on the accumulated material can be quickly realized, the efficiency of waste recycling is effectively improved, and the electromagnetic force can be accurately adjusted by controlling the current size to adapt to the separation requirements of accumulated materials of different hardness, thereby enhancing the applicability of the mold.

[0037] In this embodiment, the lifting plate 7 moves upward through the rebound of the spring 29. The whole structure is stable and reliable, convenient for later maintenance, and specific as shown in Figures 1-4 、 Figure 10 and Figure 11 , it is disclosed that: the driving assembly includes a positioning rod 28 and a spring 29 installed inside the storage groove 5, the positioning rod 28 is connected inside the lifting plate 7, the spring 29 is arranged outside the positioning rod 28, the storage groove 5 is provided with a storage box 30, the storage box 30 is provided with a driving piece 31 inside, the driving piece 31 is connected with a positive and negative screw rod 32 at the output end, the positive and negative screw rod 32 is connected with a moving plate 34 outside, the moving plate 34 is connected with a guide rod 33 inside, the moving plate 34 is connected with an inclined block 35 at the upper end, the inclined block 35 is arranged in an inverted trapezoidal shape, and the inclined block 35 is located on the surface of the lifting plate 7. The driving assembly of the embodiment is the structure of the positioning rod 28 and the spring 29. The lifting plate 7 is lifted on the positioning rod 28 through the expansion and contraction of the spring 29. The driving piece 31 inside the storage box 30 is opened. The positive and negative screw rod 32 is driven to rotate by the driving piece 31, so that the moving plate 34 on the positive and negative screw rod 32 moves horizontally through the cooperation of the guide rod 33, the inclined block 35 on the moving plate 34 is pressed, and the lifting plate 7 moves upward through the rebound of the spring 29 when the inclined block 35 is away from the surface of the lifting plate 7. The lifting plate 7 drives the cutting knife 8 at the upper end to separate the injection nozzle accumulated material inside the injection nozzle 4 from the molded part in the fixed mold 2. The whole structure is stable and reliable, and is convenient for later maintenance.

[0038] Although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can be modified, or some of the technical features can be replaced by equivalent features, by those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An injection mold for recycling plastic waste, comprising a moving mold (1) and a fixed mold (2), wherein the moving mold (1) is moved by a drive cylinder (3), and the fixed mold (2) has an injection nozzle (4) inside, characterized in that, The fixed mold (2) has a storage slot (5) inside. The storage slot (5) is connected to a lifting plate (7) through a drive assembly. The lifting plate (7) is equipped with a cutter (8) for cutting the material accumulated in the injection nozzle. The drive cylinder (3) drives a moving rod (9) through gas. The moving mold (1) is equipped with an auxiliary assembly. The auxiliary assembly is equipped with a conveying bladder (12). The output end of the conveying bladder (12) is connected to an air blowing assembly. The storage slot (5) is equipped with a vibration assembly. The auxiliary component includes a cavity (10) opened inside the moving mold (1), the moving rod (9) contacts the ejector (11) after moving, the ejector (11) is located inside the cavity (10), the moving rod (9) is located inside the conveying bladder (12), and the moving rod (9) squeezes the conveying bladder (12) when it moves. The blowing assembly includes a delivery pipe (13) connected to the output end of the delivery bag (12). The output end of the delivery pipe (13) is connected to a first pipe (15) and a second pipe (16) through a connector. The ends of the first pipe (15) and the second pipe (16) are located on the inner wall of the injection nozzle (4), and the gas inside the first pipe (15) and the second pipe (16) is delivered in one direction. The storage trough (5) is provided with a conveying cylinder (14), the first pipe (15) is connected through the inside of the conveying cylinder (14), the conveying cylinder (14) is provided with a conveying cavity (17) in an annular shape, the inside of the conveying cavity (17) is connected to the inner cavity of the conveying cylinder (14) through an interface (18), the first pipe (15) is connected to the inside of the conveying cavity (17) through the inner cavity of the conveying cylinder (14), the interface (18) of the inner cavity of the conveying cylinder (14) is adapted to the blocking rod (19), and the blocking rod (19) is connected to the bottom of the lifting plate (7); The vibration assembly includes a toothed block (20) installed on the side of the lifting plate (7), a support (23) is provided inside the storage slot (5), a gear (21) is connected to the support (23) via a rotating shaft (22), the gear (21) meshes with the toothed block (20), a striking member (24) for striking the storage slot (5) and the injection nozzle (4) is provided on the rotating shaft (22), and a torsion spring (25) for rebound is provided on the outside of the rotating shaft (22).

2. The injection mold for recycling plastic waste according to claim 1, characterized in that: The drive assembly includes a telescopic cylinder (6) installed inside the storage slot (5), the output end of which is connected to the bottom of the lifting plate (7).

3. The injection mold for recycling plastic waste according to claim 1, characterized in that: The drive assembly includes a first electromagnetic block (26) installed inside the storage slot (5), the first electromagnetic block (26) being adapted to a second electromagnetic block (27), and the second electromagnetic block (27) being installed at the bottom of the lifting plate (7).

4. The injection mold for recycling plastic waste according to claim 2, characterized in that: The drive assembly includes a positioning rod (28) and a spring (29) installed inside the storage slot (5). The positioning rod (28) is connected through the inside of the lifting plate (7), and the spring (29) is provided on the outside of the positioning rod (28).

5. The injection mold for recycling plastic waste according to claim 2, characterized in that: The storage slot (5) is provided with a storage box (30), and the storage box (30) is provided with a drive component (31). The output end of the drive component (31) is connected to a positive and negative screw (32). A moving plate (34) is connected through the outside of the positive and negative screw (32). A guide rod (33) is connected through the inside of the moving plate (34). An inclined block (35) is connected to the upper end of the moving plate (34). The inclined block (35) is arranged in an inverted trapezoidal shape and is located on the surface of the lifting plate (7).

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