An environmentally friendly injection mold with plastic recycling function

Abstract

The present invention relates to the field of plastic waste recycling, and discloses an environmentally friendly injection mold with a plastic recycling function, including a movable mold, a fixed mold, a flow channel rotating component, and a plastic solution recycling component. The flow channel rotating component is arranged on the fixed mold, and is used to rotate the injection molding solution in the flow channel to a specified position, and the plastic solution recycling component is used for recycling the plastic solution. Compared with the prior art, in the present application, the injection molding tube injects the plastic solution in a molten state into the flow channel through hole, and then enters the inside of the injection molding cavity. After the injection molding is completed, the solution in the flow channel can be transferred by rotating the rotating sealing baffle, and will not be cooled and molded together with the product. By setting the plastic solution recycling component, the transferred plastic solution is recycled into the injection molding tube, thereby realizing the effective recovery of the plastic solution in the injection mold, and avoiding the problem of waste caused by the cooling and molding of the plastic solution.

Description

Technical Field

[0001] The invention relates to the field of recycling of plastic waste, in particular to an environmentally friendly injection mold with a plastic recycling function. Background Art

[0002] An injection mold is a precision tool used in the production of plastic products. It uses an injection molding machine to inject molten plastic material into the mold cavity under high pressure, and then cools and solidifies to form the desired plastic product. An injection mold usually consists of two parts: a movable mold and a fixed mold. The movable mold usually refers to the movable part, while the fixed mold is the fixed part. Together, they constitute the shape and size of the plastic product.

[0003] During the injection molding process, molten plastic enters the runner system of the mold and is then distributed to each cavity. The plastic in the runner is usually not used in the final product after the product is cooled, so it needs to be removed to form waste. The cooled plastic waste cannot be directly recycled. At the same time, after the injection machine injects the molten plastic solution into the mold cavity, there will be a certain injection pressure. Under high pressure, a mold gap may be formed between the movable mold and the fixed mold of the injection molding, and the injected plastic solution will flow into the gap, resulting in plastic waste. In addition, the injection molding machine injects the molten plastic material into the mold, and the injection amount cannot be accurately controlled. Overfilling will also cause material waste. For this reason, an environmentally friendly injection mold with plastic recycling function is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an environmentally friendly injection mold with a plastic recycling function, which has the advantages of recycling and reusing the plastic solution in the flow channel to avoid waste and monitoring and controlling the injection pressure in the injection cavity. It solves the problems that after the plastic solution is injected, the solution in the flow channel will follow the cooling and integral molding and cannot be recycled, and the injection amount in the mold cavity cannot be accurately controlled.

[0005] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly injection mold with plastic recycling function, comprising:

[0006] Moving mold;

[0007] A fixed mold, wherein an installation groove is provided on the inner wall of the fixed mold, and a pressure sensor is installed in the installation groove;

[0008] A flow channel rotating component, which is arranged on the fixed mold and is used to rotate the injection molding solution in the flow channel to a specified position. The flow channel rotating component includes a rotating cavity provided on the fixed mold, a rotating sealing baffle is rotatably installed in the rotating cavity, and a flow channel through hole is provided on one side of the rotating sealing baffle;

[0009] A plastic solution recovery component, which is arranged on the fixed mold and is used for recycling the plastic solution. The plastic solution recovery component comprises a recovery compression hole opened on the side of the fixed mold, a compression head is installed in the recovery compression hole, and the compression head is consistent with the inner wall of the flow channel communication hole;

[0010] A mold-closing pushing component, which is arranged on the side of the movable mold and is used to control the opening and closing of the movable mold;

[0011] The mold closing detection component is arranged on the side of the movable mold and is used for fully closing the movable mold with the fixed mold.

[0012] Preferably, a nozzle interface and a gate are respectively provided on both sides of the fixed mold, a flow channel connecting hole is provided on the side wall of the gate, the flow channel connecting hole and the nozzle interface are both adapted to the flow channel through hole, and an injection plastic tube is connected to one side of the nozzle interface.

[0013] Preferably, a rotating shaft through hole is opened on the side of the fixed mold, a stepper motor is fixedly installed on the side of the fixed mold, and the output end of the stepper motor passes through the rotating shaft through hole and is fixedly connected to the side of the rotating sealing baffle.

[0014] Preferably, a solution discharge hole is opened on the side of the compression head, an inner tube is fixedly installed on the solution discharge hole, an outer sleeve is slidably sleeved on the outside of the inner tube, one end of the outer sleeve is connected to a connecting pipe, one end of the connecting pipe is connected to the injection molding pipe, and a control valve is installed on the connecting pipe.

[0015] Preferably, a telescopic cylinder is fixedly installed on the side of the fixed mold, an output end of the telescopic cylinder is connected to an L-shaped push rod, and one end of the L-shaped push rod is fixedly connected to the compression head.

[0016] Preferably, a heat-insulating sleeve is fixedly mounted on the side of the fixed mold, a heating ring is mounted on the inner wall of the heat-insulating sleeve, and the outer sleeve is located inside the heat-insulating sleeve.

[0017] Preferably, the mold closing detection component includes a protective shell fixedly mounted on the side of the movable mold, a mounting frame fixedly mounted on the inner top of the protective shell, a moving rod movably mounted on the mounting frame, an extrusion contact head fixedly mounted on the bottom end of the moving rod, a first contact head is arranged at the bottom of the extrusion contact head, an extrusion spring is fixedly mounted on the top of the moving rod and the inner wall of the mounting frame, a trigger block is fixedly mounted on the side of the fixed mold, a second contact head is arranged on the top of the trigger block, and a warning light is installed on the side of the movable mold.

[0018] Preferably, the mold closing pushing component includes a fixed plate arranged on one side of the movable mold, a pushing cylinder is arranged on one side of the fixed plate, an output end of the pushing cylinder is connected to a movable plate, a side of the movable plate is fixedly installed with an ejector pin, and the ejector pin is movably installed on the movable mold.

[0019] Preferably, cooling pipe joints are provided on the sides of the movable mold and the fixed mold for injection cooling.

[0020] Compared with the prior art, the present invention provides an environmentally friendly injection mold with plastic recycling function, which has the following beneficial effects:

[0021] 1. This environmentally friendly injection mold with plastic recycling function can realize the mold closing operation of the movable mold and the fixed mold under the pushing action of the mold closing pushing component. After the mold closing, the mold closing detection component can detect and calibrate whether the mold is loose after the mold closing, so as to ensure the close contact between the movable mold and the fixed mold after the mold closing, and avoid the problem of the solution entering the gap after the plastic solution is injected, thereby generating more plastic waste.

[0022] 2. This is an environmentally friendly injection mold with plastic recycling function. The injection plastic tube injects the molten plastic solution into the flow channel through the hole and then into the injection cavity. After the injection is completed, the solution in the flow channel can be transferred by rotating the rotary sealing baffle, and it will not cool and mold with the product, avoiding plastic waste and being more environmentally friendly.

[0023] 3. This environmentally friendly injection mold with plastic recycling function recycles the transferred plastic solution into the injection molding tube through the setting of the plastic solution recycling component, thereby realizing effective recycling of the plastic solution in the flow channel through hole and avoiding the problem of waste caused by cooling and molding of the plastic solution.

[0024] 4. This environmentally friendly injection mold with plastic recycling function can monitor the solution extrusion force inside the injection cavity at all times by setting a pressure sensor. When the extrusion force of the injection solution reaches a certain level, it indicates that the amount of injection solution inside has reached saturation, thereby avoiding over-filling and injection molding, which causes material waste. At the same time, the value change on the pressure sensor can also be used to observe whether looseness occurs after mold closing, which plays a dual reminder role. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from a left-side top view;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from the right side and top view;

[0027] Figure 3 It is a schematic diagram of the structure of a partial cross-section of the present invention;

[0028] Figure 4 It is a structural schematic diagram of a local stereo left view of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of a partial stereo right view of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the flow channel rotating component of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of a partial cross-section of the present invention;

[0032] Figure 8 For the present invention Figure 2 The structural diagram of part A in the figure;

[0033] Fig. 9 It is a structural schematic diagram of a partial explosion of the present invention;

[0034] Fig.10 It is a structural schematic diagram of the explosion of the mold clamping detection component of the present invention.

[0035] In the figure: 1. Moving mold; 2. Fixed mold; 3. Mold pushing component; 4. Fixed plate; 5. Pushing cylinder; 6. Moving plate; 7. Ejector; 8. Plastic injection tube; 9. Cooling pipe joint; 10. Runner rotating component; 11. Nozzle interface; 12. Runner connecting hole; 13. Rotating cavity; 14. Gate; 15. Rotating sealing baffle; 16. Stepping motor; 17. Runner through hole; 18. Rotating shaft through hole; 19. Plastic solution recovery component; 20. Recovery compression hole; 21. Compression head ; 22. Solution discharge hole; 23. Telescopic cylinder; 24. L-shaped push rod; 25. Inner tube; 26. Outer tube; 27. Connecting pipe; 28. Insulation sleeve; 29. ​​Heating ring; 30. Mounting groove; 31. Pressure sensor; 32. Mold detection component; 33. Protective shell; 34. Mounting frame; 35. Moving rod; 36. Extrusion spring; 37. Extrusion contact head; 38. Trigger block; 39. First contact head; 40. Second contact head; 41. Warning light; 42. Control valve. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes an environmentally friendly injection mold with plastic recycling function.

[0038] In a typical implementation of the present application, Figure 1 and Figure 2 As shown, an environmentally friendly injection mold with plastic recycling function includes:

[0039] The movable mold 1 and the fixed mold 2 are combined to form an injection cavity. After the plastic solution is injected into the cavity, it is cooled to form a plastic product. The sides of the movable mold 1 and the fixed mold 2 are provided with cooling pipe joints 9 for cooling after injection molding.

[0040] A mold-closing pushing component 3 is arranged on the side of the movable mold 1 and is used to control the opening and closing of the movable mold 1. The mold-closing pushing component 3 includes a fixed plate 4 arranged on one side of the movable mold 1, a pushing cylinder 5 is arranged on one side of the fixed plate 4, and a moving plate 6 is connected to the output end of the pushing cylinder 5. An ejector pin 7 is fixedly installed on the side of the movable plate 6, and the ejector pin 7 is movably installed on the movable mold 1;

[0041] The push cylinder 5 on the mold-closing push component 3 is started to operate, driving the moving plate 6 and the ejector pin 7 to move, thereby driving the movable mold 1 to move, so that the movable mold 1 and the fixed mold 2 are close to the mold, which is convenient for subsequent solution extrusion injection molding;

[0042] As a preferred implementation in this embodiment, Figure 2 and Fig.10 As shown, a mold closing detection component 32 is arranged on the side of the movable mold 1, and is used to detect whether the movable mold 1 and the fixed mold 2 are fully closed. The mold closing detection component 32 includes a protective shell 33 fixedly installed on the side of the movable mold 1, and a mounting frame 34 is fixedly installed on the inner top of the protective shell 33. A moving rod 35 is movably installed on the mounting frame 34, and an extrusion contact head 37 is fixedly installed on the bottom end of the moving rod 35. A first contact head 39 is arranged at the bottom of the extrusion contact head 37. An extrusion spring 36 is fixedly installed on the top of the moving rod 35 and the inner wall of the mounting frame 34. A trigger block 38 is fixedly installed on the side of the fixed mold 2, and a second contact head 40 is arranged on the top of the trigger block 38. A warning light 41 is installed on the side of the movable mold 1;

[0043] The mold clamping detection component 32 is set. When the movable mold 1 is moving, the trigger block 38 will be located in the protective shell 33. At this time, the trigger block 38 is squeezed and contacted with the extrusion contact head 37. When the movable mold 1 and the fixed mold 2 are fully clamped, the first contact head 39 and the second contact head 40 overlap and contact. At this time, the warning light 41 will light up green to remind the staff that the mold clamping is effectively completed. After the mold is clamped, the extrusion is loose or the mold moves back to its original position. At this time, the first contact head 39 and the second contact head 40 are misaligned, and the warning light 41 is not lit, thereby reminding the staff that there is a gap in the mold clamping. By fully clamping the mold, the plastic products formed by injection molding can be guaranteed to avoid the problem of excess scraps.

[0044] It is worth mentioning that the end of the extrusion contact head 37 and the end of the trigger block 38 are both arranged in an arc-shaped structure, which can achieve the effect of extrusion movement. The extrusion spring 36 is arranged to always ensure that the first contact head 39 and the second contact head 40 can always be in contact, avoiding poor contact.

[0045] As a preferred implementation in this embodiment, Figure 3 , Figure 7 and Fig.10 As shown, a mounting groove 30 is provided on the inner wall of the fixed mold 2, and a pressure sensor 31 is installed in the mounting groove 30. Through the pressure detection of the pressure sensor 31, the amount of plastic solution filled in the cavity can be known. After the mold is closed, the plastic solution in the injection plastic tube 8 will be squeezed and sprayed, and enter the flow channel through hole 17 through the nozzle interface 11, and finally enter the cavity through the flow channel connecting hole 12 to realize the injection filling of the plastic solution. During the filling process, through continuous injection, the solution inside the cavity will become more, and the internal pressure will increase. At this time, the pressure sensor 31 set can detect the injection pressure inside the cavity. Through continuous injection, the pressure will continue to increase. When a certain pressure is detected, it means that the internal plastic solution is filled. It is necessary to stop the injection of the plastic solution. Through the setting of the pressure sensor 31, the injection can be effectively guaranteed. The amount of plastic solution, under the premise of ensuring the quality of the product, the injection volume is reduced, the waste generated will also be reduced accordingly, overfilling is reduced, and material waste is avoided. When the plastic solution is injected, the value on the pressure sensor 31 changes. When the value suddenly becomes smaller, the movable mold 1 and the fixed mold 2 may be slightly separated. There is a gap between the movable mold 1 and the fixed mold 2, which causes the pressure to decrease. The tiny gap will flow into the plastic solution, and larger plastic waste will be caused after cooling and molding. At the same time, observe whether the warning light 41 is green. If the green light is not on, it means that the movable mold 1 and the fixed mold 2 are loose and separated, and need to be dealt with immediately, which has a double reminder effect. When the warning light 41 is still green, it means that the pressure sensor 31 is faulty or has other problems and needs further maintenance.

[0046] As a preferred implementation in this embodiment, Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the flow channel rotating component 10 is arranged on the fixed mold 2, and is used to rotate the injection molding solution in the flow channel to a specified position. The flow channel rotating component 10 includes a rotating cavity 13 opened on the fixed mold 2, and a rotating sealing baffle 15 is rotatably installed in the rotating cavity 13. A flow channel through hole 17 is opened on one side of the rotating sealing baffle 15, and a nozzle interface 11 and a gate 14 are respectively opened on both sides of the fixed mold 2. A flow channel connecting hole 12 is opened on the side wall of the gate 14, and the flow channel connecting hole 12 and the nozzle interface 11 are both adapted to the flow channel through hole 17. An injection molding plastic pipe 8 is connected to one side of the nozzle interface 11, and a rotating shaft through hole 18 is opened on the side of the fixed mold 2. A stepping motor 16 is fixedly installed on the side of the fixed mold 2, and the output end of the stepping motor 16 passes through the rotating shaft through hole 18 and is fixedly connected to the side of the rotating sealing baffle 15.

[0047] When the injected amount reaches the standard, the stepper motor 16 on the flow channel rotating component 10 is started to run, and the stepper motor 16 drives the rotating sealing baffle 15 to rotate 90 degrees, and the plastic solution in the flow channel through hole 17 will be transferred to other positions. The flow channel through hole 17 is connected to the recovery compression hole 20. At this time, the two sides of the rotating sealing baffle 15 are effectively blocked in the nozzle interface 11 and the flow channel connecting hole 12 to prevent the solution in the cavity and the injection plastic tube 8 from flowing;

[0048] Furthermore, in the above scheme, the interior of the rotating sealing baffle 15 can be hollow, which can reduce the weight of the rotating sealing baffle 15. At the same time, the hollow setting allows the rotating sealing baffle 15 to expand and contract due to high temperatures, thereby better forming a sealing barrier with the rotating chamber 13.

[0049] As a preferred implementation in this embodiment, Figure 2 , Figure 8 and Fig. 9As shown, the plastic solution recovery component 19 is arranged on the fixed mold 2 for recycling the plastic solution. The plastic solution recovery component 19 includes a recovery compression hole 20 opened on the side of the fixed mold 2. A compression head 21 is installed in the recovery compression hole 20. The compression head 21 is consistent with the inner wall of the flow channel communication hole 12. A solution discharge hole 22 is opened on the side of the compression head 21. An inner tube 25 is fixedly installed on the solution discharge hole 22. The outer sleeve 26 is slidably sleeved on the outer surface of the inner tube 25. The outer sleeve 26 is slidably sleeved on the outer surface of the inner tube 25. One end of the tube 26 is connected to a connecting tube 27, one end of the connecting tube 27 is connected to the injection plastic tube 8, a control valve 42 is installed on the connecting tube 27, a telescopic cylinder 23 is fixedly installed on the side of the fixed mold 2, an L-shaped push rod 24 is connected to the output end of the telescopic cylinder 23, one end of the L-shaped push rod 24 is fixedly connected to the compression head 21, a heat preservation sleeve 28 is fixedly installed on the side of the fixed mold 2, a heating ring 29 is installed on the inner wall of the heat preservation sleeve 28, and the outer sleeve 26 is located in the heat preservation sleeve 28;

[0050] Start the telescopic cylinder 23 on the plastic solution recovery component 19 to drive the L-shaped push rod 24 to move. At this time, the compression head 21 will enter the flow channel through hole 17 from the recovery compression hole 20. During the extrusion process, the plastic solution in the flow channel through hole 17 will be transported to the inner tube 25, and flow back to the injection plastic pipe 8 along the inner tube 25, the outer sleeve 26 and the connecting pipe 27. The inner tube 25 moves in the outer sleeve 26 to achieve a telescopic movement effect. With the continuous extrusion of the compression head 21, the plastic solution in the flow channel through hole 17 will be squeezed and transported to the injection plastic pipe 8, thereby realizing the recycling and reuse of the plastic solution, avoiding the problem of plastic waste caused by the cooling of the plastic solution in the flow channel through hole 17, thereby achieving a good environmental protection effect. After the compression head 21 is extruded, it returns to its original position (a one-way valve is set in the solution discharge hole 22 in the compression head 21 to avoid the effect of reflux of the plastic solution). A control valve 42 is set on the connecting pipe 27 to control the flow of the solution in the connecting pipe 27.

[0051] Furthermore, in the above scheme, an insulation sleeve 28 is provided on the outside of the inner tube 25 and the outer tube 26. The setting of the insulation sleeve 28 can effectively achieve a good insulation effect and avoid the problem of liquid pre-cooling molding during transportation. At the same time, a heating ring 29 is provided to heat the plastic solution during transportation, so that the plastic solution maintains a certain high temperature and avoids cooling molding.

[0052] Working principle of the present invention: plastic products are produced by using injection molds. Before production, the movable mold 1 and the fixed mold 2 need to be molded together. After the molds are closed, an injection cavity will be formed. The mold closing pushing component 3 is set, which can drive the movable mold 1 to move so that the movable mold 1 and the fixed mold 2 are close to each other for mold closing. The mold closing detection component 32 is set, and the trigger block 38 will be located in the protective shell 33 during the movement. When the movable mold 1 and the fixed mold 2 are fully molded together, the first contact head 39 and the second contact head 40 overlap and contact. At this time, the warning light 41 will light up green to remind the staff that the mold closing is effectively completed. On the contrary, the mold closing is not sufficient, thereby reminding the staff that there is a gap in the mold closing. By fully closing the mold, the plastic products formed by injection molding can be guaranteed to avoid the problem of excess scraps.

[0053] After the mold is closed, the plastic solution in the injection tube 8 will be squeezed and sprayed. Through continuous injection, the solution inside the cavity will increase and the internal pressure will increase. The setting of the pressure sensor 31 can effectively ensure the amount of plastic solution injected. Under the premise of ensuring the quality of the product, the injection volume is reduced, and the waste generated will be reduced accordingly, reducing overfilling and avoiding material waste. During the process of injecting the plastic solution, the value on the pressure sensor 31 becomes smaller. At the same time, observe whether the warning light 41 is green. If it is not green, it means that the movable mold 1 and the fixed mold 2 are loose and separated, and need to be processed immediately. When the warning light 41 is still green, it means that the pressure sensor 31 has a fault or other problems and needs to be repaired.

[0054] When the injected amount reaches the standard, the stepper motor 16 on the flow channel rotating component 10 is started, and the plastic solution in the flow channel through hole 17 will be transferred to other positions. The telescopic cylinder 23 on the plastic solution recovery component 19 is started, and the compression head 21 enters the flow channel through hole 17. The plastic solution in the flow channel through hole 17 will be transported to the injection plastic pipe 8. With the continuous squeezing of the compression head 21, the plastic solution in the flow channel through hole 17 will be squeezed and transported to the injection plastic pipe 8, thereby realizing the recycling and reuse of the plastic solution, avoiding the problem of plastic waste caused by the cooling of the plastic solution in the flow channel through hole 17, thereby achieving a good environmental protection effect.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly injection mold with plastic recycling function, characterized by: include: Moving mold (1); A fixed mold (2), wherein a mounting groove (30) is provided on an inner wall of the fixed mold (2), and a pressure sensor (31) is installed in the mounting groove (30); A flow channel rotating component (10), the flow channel rotating component (10) being arranged on the fixed mold (2) and used for rotating the injection molding solution in the flow channel to a specified position, the flow channel rotating component (10) comprising a rotating cavity (13) provided on the fixed mold (2), a rotating sealing baffle (15) being rotatably mounted in the rotating cavity (13), and a flow channel through hole (17) being provided on one side of the rotating sealing baffle (15); A plastic solution recovery component (19), the plastic solution recovery component (19) being arranged on the fixed mold (2) and used for recycling the plastic solution, the plastic solution recovery component (19) comprising a recovery compression hole (20) provided on the side of the fixed mold (2), a compression head (21) being installed in the recovery compression hole (20), the compression head (21) being aligned with the inner wall of the flow channel communication hole (12); The fixed mold (2) is provided with a nozzle interface (11) and a gate (14) on both sides, respectively; a flow channel communication hole (12) is provided on the side wall of the gate (14); the flow channel communication hole (12) and the nozzle interface (11) are both adapted to the flow channel through hole (17); an injection molding tube (8) is connected to one side of the nozzle interface (11); a solution discharge hole (22) is provided on the side of the compression head (21); an inner tube (25) is fixedly mounted on the solution discharge hole (22); the inner tube The outer sliding sleeve of (25) is connected to an outer sleeve (26), one end of the outer sleeve (26) is connected to a connecting pipe (27), one end of the connecting pipe (27) is connected to the injection plastic pipe (8), and a control valve (42) is installed on the connecting pipe (27). A telescopic cylinder (23) is fixedly installed on the side of the fixed mold (2), the output end of the telescopic cylinder (23) is connected to an L-shaped push rod (24), and one end of the L-shaped push rod (24) is fixedly connected to the compression head (21); A mold closing pushing component (3), wherein the mold closing pushing component (3) is arranged on the side of the movable mold (1) and is used to control the opening and closing of the movable mold (1); A mold closing detection component (32) is arranged on the side of the movable mold (1) and is used for fully closing the movable mold (1) with the fixed mold (2).

2. The environmentally friendly injection mold with plastic recycling function according to claim 1, characterized in that: A rotating shaft through hole (18) is provided on the side of the fixed mold (2), a stepper motor (16) is fixedly mounted on the side of the fixed mold (2), and an output end of the stepper motor (16) passes through the rotating shaft through hole (18) and is fixedly connected to the side of the rotating sealing baffle (15).

3. The environmentally friendly injection mold with plastic recycling function according to claim 1, characterized in that: A heat-insulating sleeve (28) is fixedly mounted on the side of the fixed mold (2), a heating ring (29) is mounted on the inner wall of the heat-insulating sleeve (28), and the outer sleeve (26) is located inside the heat-insulating sleeve (28).

4. The environmentally friendly injection mold with plastic recycling function according to claim 1, characterized in that: The mold closing detection component (32) comprises a protective shell (33) fixedly mounted on the side of the movable mold (1); a mounting frame (34) is fixedly mounted on the inner top of the protective shell (33); a moving rod (35) is movably mounted on the mounting frame (34); a pressing contact head (37) is fixedly mounted on the bottom end of the moving rod (35); a first contact head (39) is arranged at the bottom of the pressing contact head (37); a pressing spring (36) is fixedly mounted between the top end of the moving rod (35) and the inner wall of the mounting frame (34); a trigger block (38) is fixedly mounted on the side of the fixed mold (2); a second contact head (40) is arranged on the top of the trigger block (38); and a warning light (41) is installed on the side of the movable mold (1).

5. The environmentally friendly injection mold with plastic recycling function according to claim 1, characterized in that: The mold clamping pushing component (3) comprises a fixed plate (4) arranged on one side of the movable mold (1), a pushing cylinder (5) is arranged on one side of the fixed plate (4), an output end of the pushing cylinder (5) is connected to a movable plate (6), a side of the movable plate (6) is fixedly mounted with an ejector pin (7), and the ejector pin (7) is movably mounted on the movable mold (1).

6. The environmentally friendly injection mold with plastic recycling function according to claim 1, characterized in that: The sides of the movable mold (1) and the fixed mold (2) are both provided with cooling pipe joints (9) for injection cooling.

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