PET film extrusion die based on plastic recycling

Abstract

This invention discloses a PET film extrusion mold based on plastic recycling, relating to the field of PET film production technology. It includes an injection molding machine, which is mounted on the top of the ground. An injection frame is fixedly installed on the front and rear sides of the injection molding machine. A docking frame is fixedly installed on the top of the injection frame. An upper mold is slidably mounted on the circumferential surface of the docking frame. A connecting frame is fixedly installed on the right side of the injection molding machine. A servo motor is fixedly installed on the top of the connecting frame. A lead screw is fixedly installed at the output end of the servo motor. A T-shaped rod is slidably installed on the inner wall of the connecting frame. A feed box is fixedly installed on the top of the injection molding machine. The lead screw cannot rotate, thus preventing the T-shaped rod from rotating. The inability of the T-shaped rod to rotate fixes the gap between the lower and upper molds. By restricting the vertical movement of the T-shaped rod, the gap between the lower and upper molds is fixed, thereby ensuring that the gap between the upper and lower molds remains stable during production.

Description

Technical Field

[0001] This invention relates to the field of PET film production technology, specifically to a PET film extrusion mold based on plastic recycling. Background Technology

[0002] PET film extrusion molds based on plastic recycling typically consist of upper and lower molds, injection molding equipment, drive equipment, and protective components.

[0003] Patent publication number CN219634476U relates to a PET film extrusion mold, including a base, a heating box on top of the base, an extrusion mold located to the right of the heating box on top of the base, and a melt pump located between the heating box and the extrusion mold on top of the base. This PET film extrusion mold based on plastic recycling utilizes a servo motor. When activated, the servo motor drives a front rotating shaft to rotate via its output shaft. The engagement of two gears causes the two rotating shafts to drive two crushing rollers to crush the raw material. This avoids the impact of different particle sizes and heating areas on the melting rate of the raw material. Simultaneously, a drive motor, when activated, uses a disc, a shaft, and a rubber hammer to strike the side wall of the feed hopper, preventing the crushed material from clogging and affecting worker efficiency. This significantly improves the practicality of the device and makes it easy for workers to use.

[0004] In the aforementioned patent, the side wall of the feed hopper is struck by a combination of a drive motor, a disc, a shaft, and a rubber hammer to prevent the crushed raw material from clogging and affecting the work efficiency of the staff. This greatly improves the practicality of the device and makes it easy for staff to use. However, it is difficult to fix the gap between the lower mold and the upper mold. The instability of the gap between the upper mold and the lower mold will lead to the frequent occurrence of unqualified film products, which will require additional inspection and repair, and will cause the production line to stop or the operator to intervene frequently, thereby reducing production efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a PET film extrusion mold based on plastic recycling, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a PET film extrusion mold based on plastic recycling, comprising an injection molding machine, the injection molding machine being mounted on the top of the ground, an injection frame fixedly installed on the front and rear sides of the injection molding machine, a docking frame fixedly installed on the top of the injection frame, an upper mold slidably mounted on the circumferential surface of the docking frame, a connecting frame fixedly installed on the right side of the injection molding machine, a servo motor fixedly installed on the top of the connecting frame, a lead screw fixedly installed at the output end of the servo motor, a T-shaped rod slidably mounted on the inner wall of the connecting frame, a feeding box fixedly installed on the top of the injection molding machine for dispensing recycled plastic, a stepper motor fixedly installed on the left side of the feeding box, a rotating rod fixedly installed at the output end of the stepper motor; and a linkage plate fixedly installed on the circumferential surface of the rotating rod, the linkage plate being used for... The system monitors the operation of the feed box. A load-bearing rod is fixedly installed on the top of the injection molding equipment. A load-bearing plate is slidably mounted on the circumference of the load-bearing rod. Protective rings are fixedly inserted through the upper and lower walls of the load-bearing plate, and these protective rings are used to limit the movement of the lead screw. A grooved ring is fixedly installed on the circumference of the lead screw. An elastic telescopic block is fixedly installed on the left side of the connecting frame, and this elastic telescopic block is used to limit the movement of the load-bearing plate. The injection molding equipment is internally connected to the lower mold. A servo motor is started to drive the lead screw to rotate. The rotation of the lead screw drives the T-shaped rod to move vertically. The vertical movement of the T-shaped rod drives the upper mold to move vertically, thereby adjusting the gap between the lower and upper molds. If the lead screw cannot rotate, the T-shaped rod cannot rotate, thus fixing the gap between the lower and upper molds.

[0007] According to the above technical solution, the T-shaped rod is threadedly connected to the lead screw, and the bottom of the T-shaped rod is fixedly connected to the upper mold. By fixing the T-shaped rod to the upper mold, the upper mold can be driven to move vertically when the T-shaped rod moves vertically. The lower mold is slidably installed on the circumferential surface of the docking frame.

[0008] According to the above technical solution, the top of the load-bearing plate is set as an arc surface, and a spring is set between the load-bearing plate and the injection molding equipment. When the load-bearing plate moves downward, it compresses the spring. The spring deforms and stores force under the compression of the load-bearing plate. After the free end of the elastic telescopic block is manually pushed forward, the load-bearing plate can be reset by the spring. A dispersing plate is fixedly installed on the circumference of the rotating rod. The dispersing plate rotates and strikes the recycled plastic inside the feed box, thereby adjusting and refining the particle size of the recycled plastic. By rotating the dispersing plate to strike the recycled plastic, the recycled plastic can be effectively broken down, thereby improving the overall quality of the PET film.

[0009] According to the above technical solution, the inside of the feeding box is equipped with a crushing component for secondary crushing of the agglomerated recycled plastic. A protective component is provided on the front side of the feeding box. The crushing component includes a microporous plate, a connecting rod, a connecting plate, a crushing plate, and a hollow block. The agglomerated recycled plastic is squeezed and dispersed secondary by the crushing plate. The microporous plate is fixedly installed on the inner wall of the feeding box. The connecting rod slides through the upper and lower walls of the microporous plate. The connecting plate is fixedly installed at the bottom of the connecting rod. The crushing plate is fixedly installed on the circumferential surface of the connecting rod. The hollow block is fixedly installed on the circumferential surface of the connecting rod. The diameter of the sieve holes of the microporous plate is smaller than that of the crushing plate, so that the agglomerated recycled plastic can remain on the top of the microporous plate.

[0010] According to the above technical solution, a return spring is provided between the connecting plate and the microporous plate. When the connecting plate moves downward, it applies a pulling force to the return spring. The return spring is pulled by the connecting plate and generates force and stores energy. After the dispersing plate continues to rotate and disengages from the crushing plate, the return spring can drive the connecting plate to return to its original position. The crushing plate contacts the dispersing plate, and the hollow block contacts the bottom of the microporous plate. The microporous plate is vibrated by the impact of the hollow block and accelerates the feeding speed of the recycled plastic.

[0011] According to the above technical solution, the protective component includes a U-shaped rod, a support frame, a support ring, and a support groove. The support groove is opened on the front side of the feed box. The U-shaped rod is fixedly installed on the inner wall of the support groove. The support frame is slidably installed on the circumferential surface of the U-shaped rod. The support ring is fixedly installed on the circumferential surface of the U-shaped rod. The rubber ring gradually deforms, causing the support frame to move slowly upward.

[0012] According to the above technical solution, a support spring is provided between the support frame and the support ring. The support frame moves upward under the pressure of the crushing plate. The reciprocating motion of the support frame blocks the recycled plastic splashed inside the feed box. The upward movement of the support frame applies a pulling force to the support spring. The support spring deforms and stores force under the pulling force of the support frame. After the support frame is separated from the crushing plate, the support spring can drive the support frame to return to its original position. A rubber ring is fixedly installed on the inner wall of the support groove. The support frame abuts against the crushing plate.

[0013] According to the above technical solution, the support frame is in contact with the inner wall of the feed box, the bottom of the support frame is set as an inclined surface, a semi-circular groove is opened on the front side of the support frame, and the elastic coefficient of the support spring is less than the elastic coefficient of the return spring, so that the support frame can move upward under the pressure of the crushing plate.

[0014] This invention provides a PET film extrusion mold based on plastic recycling. It has the following beneficial effects:

[0015] (1) The PET film extrusion mold based on plastic recycling adjusts the gap between the upper mold and the lower mold by vertically moving the upper mold. By adjusting the gap between the upper mold and the lower mold, the thickness of the extruded PET film can be precisely controlled, thereby avoiding uneven film layers. By restricting the T-shaped rod from vertically moving, the gap between the lower mold and the upper mold is fixed, thereby ensuring that the gap between the upper mold and the lower mold remains stable during the production process, thus avoiding film thickness errors caused by gap changes due to misoperation and reducing the generation of unqualified products.

[0016] (2) The PET film extrusion mold based on plastic recycling uses a dispersing plate to strike the recycled plastic inside the feed box, thereby adjusting and refining the particle size of the recycled plastic. The dispersing plate can effectively break down the recycled plastic and improve the overall quality of the PET film. At the same time, it reduces the wear on the lower and upper molds and extends the service life of the mold.

[0017] (3) The PET film extrusion mold based on plastic recycling squeezes the agglomerated recycled plastic that is stuck on the top of the microporous plate by moving the crushing plate downward. The agglomerated recycled plastic is dispersed for a second time by the crushing plate. The secondary dispersion and crushing can effectively reduce the size of these agglomerated particles and reduce the risk of lower mold blockage caused by agglomeration.

[0018] (4) The PET film extrusion mold based on plastic recycling generates vibration through the microporous plate being struck by hollow blocks, which accelerates the feeding speed of recycled plastic. Vibration helps to accelerate the feeding speed of recycled plastic and fully mix it with PET resin, thereby ensuring that the recycled plastic can better bond with the substrate and avoid affecting the quality of the finished PET film due to uneven distribution or clumping of recycled plastic.

[0019] (5) The PET film extrusion mold based on plastic recycling shields the recycled plastic splashed inside the feed box through the back-and-forth movement of the support frame. At the same time, the rubber ring gradually deforms, so that the support frame can only move slowly upward, thereby protecting the components on the surface of the feed box and ensuring the continuity of the recycled plastic feeding. Continuous and stable feeding helps to improve the efficiency of the extrusion process of the lower and upper molds and reduce downtime caused by component failure or material jamming. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the injection molding equipment of the present invention;

[0022] Figure 3For the present invention Figure 2 Enlarged schematic diagram of section A in the middle;

[0023] Figure 4 This is a schematic diagram showing the positional structure of the lower and upper molds of the present invention;

[0024] Figure 5 This is a schematic diagram of a half-section of the feed box structure of the present invention;

[0025] Figure 6 This is a schematic diagram showing the position and structure of the load-bearing plate and the elastic telescopic block in this invention.

[0026] Figure 7 This is a schematic diagram of the internal structure of the feed box of the present invention.

[0027] In the diagram: 1. Injection molding equipment; 2. Injection frame; 3. Connecting frame; 4. Lower mold; 5. Upper mold; 6. Connecting frame; 7. Servo motor; 8. Lead screw; 9. T-bar; 10. Feed box; 11. Stepper motor; 12. Rotating rod; 13. Dispersion plate; 14. Linkage plate; 15. Load-bearing rod; 16. Load-bearing plate; 17. Protective ring; 18. Grooved ring; 19. Elastic telescopic block; 201. Micro-perforated plate; 202. Connecting rod; 203. Connecting plate; 204. Crushing plate; 205. Hollow block; 206. Return spring; 211. U-shaped rod; 212. Support frame; 213. Support ring; 214. Support spring; 215. Rubber ring; 216. Support groove. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-7One embodiment of the present invention is: a PET film extrusion mold based on plastic recycling, comprising an injection molding machine 1, the injection molding machine 1 being mounted on the top of the ground, an injection frame 2 being fixedly installed on the front and rear sides of the injection molding machine 1, a docking frame 3 being fixedly installed on the top of the injection frame 2, an upper mold 5 being slidably installed on the circumferential surface of the docking frame 3, a connecting frame 6 being fixedly installed on the right side of the injection molding machine 1, a servo motor 7 being fixedly installed on the top of the connecting frame 6, a lead screw 8 being fixedly installed at the output end of the servo motor 7, a T-shaped rod 9 being slidably installed on the inner wall of the connecting frame 6, a feeding box 10 being fixedly installed on the top of the injection molding machine 1, the feeding box 10 being used to feed recycled plastic, a stepper motor 11 being fixedly installed on the left side of the feeding box 10, a rotating rod 12 being fixedly installed at the output end of the stepper motor 11; and a linkage plate 14, which is fixedly installed on the rotating rod 12. The circumferential surface of the injection molding equipment 1 includes a linkage plate 14 for detecting the operating status of the feed box 10, a load-bearing rod 15 fixedly installed on the top of the injection molding equipment 1, a load-bearing plate 16 slidably installed on the circumferential surface of the load-bearing rod 15, and a protective ring 17 fixedly passing through the upper and lower walls of the load-bearing plate 16 for limiting the lead screw 8; a grooved ring 18 fixedly installed on the circumferential surface of the lead screw 8; and an elastic telescopic block 19 fixedly installed on the left side of the connecting frame 6 for limiting the load-bearing plate 16. The injection molding equipment 1 is internally connected to the lower mold 4. By restricting the T-shaped rod 9 from moving vertically, the gap between the lower mold 4 and the upper mold 5 is fixed, thereby ensuring that the gap between the upper mold 5 and the lower mold 4 remains stable during production, reducing the generation of defective products.

[0030] T-shaped rod 9 is threadedly connected to lead screw 8. The bottom of T-shaped rod 9 is fixedly connected to upper mold 5. By fixing T-shaped rod 9 to upper mold 5, the vertical movement of T-shaped rod 9 can drive upper mold 5 to move vertically. Lower mold 4 is slidably installed on the circumferential surface of docking frame 3. By adjusting the gap between upper mold 5 and lower mold 4, the thickness of extruded PET film can be precisely controlled, thereby avoiding uneven film layers.

[0031] The top of the load-bearing plate 16 is set as an arc surface. A spring is set between the load-bearing plate 16 and the injection molding equipment 1. When the load-bearing plate 16 moves downward, it compresses the spring. The spring deforms and stores force under the compression of the load-bearing plate 16. After the free end of the elastic telescopic block 19 is manually pushed forward, the load-bearing plate 16 can be reset by the spring. A dispersion plate 13 is fixedly installed on the circumference of the rotating rod 12. The dispersion plate 13 rotates to strike the recycled plastic, which can effectively break the recycled plastic and improve the overall quality of the PET film. At the same time, it reduces the wear on the lower mold 4 and the upper mold 5 and extends the service life of the mold.

[0032] In this embodiment, when the gap between the lower mold 4 and the upper mold 5 needs to be adjusted, the servo motor 7 is started to drive the lead screw 8 to rotate. The rotation of the lead screw 8 drives the T-shaped rod 9 to move vertically, which in turn drives the upper mold 5 to move vertically, thereby adjusting the gap between the lower mold 4 and the upper mold 5. After the gap between the lower mold 4 and the upper mold 5 is adjusted, the injection molding equipment 1 is started to perform the injection molding operation. At the same time, the stepper motor 11 is started to operate, driving the rotating rod 12 to rotate. The rotation of the rotating rod 12 drives the linkage plate 14 to rotate. The rotating linkage plate 14 contacts the arc surface of the load-bearing plate 16 and presses the load-bearing plate 16. The load-bearing plate 16 moves downward under the pressure of the linkage plate 14. The downward movement of the load-bearing plate 16 drives the protective ring 17 to move downward, thus protecting the load-bearing plate 16. Ring 17 moves downwards to contact the groove of grooved ring 18 and limits grooved ring 18. Groove ring 18 is limited by protective ring 17, preventing screw 8 from rotating. Screw 8 cannot rotate, preventing T-shaped rod 9 from rotating. T-shaped rod 9 cannot rotate, thus fixing the gap between lower mold 4 and upper mold 5. Meanwhile, load-bearing plate 16 moves downwards to disengage from the limit of free end of elastic telescopic block 19. After the limit of free end of elastic telescopic block 19 is released, the free end of elastic telescopic block 19 moves backwards under its own elastic force to limit the top of load-bearing plate 16. At the same time, recycled plastic is added into injection molding equipment 1 through feed box 10. Rotating rod 12 drives dispersion plate 13 to rotate. Dispersion plate 13 rotates to strike the recycled plastic inside feed box 10, thereby adjusting and refining the particle size of recycled plastic.

[0033] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, the feed box 10 is provided with a crushing component for secondary crushing of the agglomerated recycled plastic. A protective component is provided on the front side of the feed box 10. The crushing component includes a microporous plate 201, a connecting rod 202, a connecting plate 203, a crushing plate 204, and a hollow block 205. The microporous plate 201 is fixedly installed on the inner wall of the feed box 10. The connecting rod 202 slides through the upper and lower walls of the microporous plate 201. The connecting plate 203 is fixedly installed at the bottom of the connecting rod 202. The crushing plate 204 is fixedly installed on the circumferential surface of the connecting rod 202. The hollow block 205 is fixedly installed on the circumferential surface of the connecting rod 202. The diameter of the sieve holes of the microporous plate 201 is smaller than that of the crushing plate 204, so that the agglomerated recycled plastic can be retained at the top of the microporous plate 201. Secondary dispersion crushing can effectively reduce the size of these agglomerated particles and reduce the risk of blockage of the lower mold 4 caused by agglomeration.

[0034] A return spring 206 is provided between the connecting plate 203 and the microporous plate 201. When the connecting plate 203 moves downward, it applies a pulling force to the return spring 206. The return spring 206 is shaped and stores force under the pulling force of the connecting plate 203. After the dispersing plate 13 continues to rotate and disengages from the crushing plate 204, the return spring 206 can drive the connecting plate 203 to return to its original position. The crushing plate 204 contacts the dispersing plate 13, and the hollow block 205 contacts the bottom of the microporous plate 201. The microporous plate 201 vibrates under the impact of the hollow block 205, which accelerates the feeding speed of the recycled plastic. The vibration helps to accelerate the feeding speed of the recycled plastic and fully mix it with the PET resin, thereby ensuring that the recycled plastic can better bond with the substrate.

[0035] The protective assembly includes a U-shaped rod 211, a support frame 212, a support ring 213, and a support groove 216. The support groove 216 is located on the front side of the feed box 10. The U-shaped rod 211 is fixedly installed on the inner wall of the support groove 216. The support frame 212 is slidably installed on the circumferential surface of the U-shaped rod 211. The support ring 213 is fixedly installed on the circumferential surface of the U-shaped rod 211. The rubber ring 215 gradually deforms, causing the support frame 212 to move slowly upward. Continuous and stable feeding and anti-splashing help improve the efficiency of the extrusion process of the lower mold 4 and the upper mold 5, and reduce downtime caused by component failure or material jamming.

[0036] A support spring 214 is provided between the support frame 212 and the support ring 213. When the support frame 212 moves upward, it applies a pulling force to the support spring 214. The support spring 214 deforms and stores force under the pull of the support frame 212. After the support frame 212 is separated from the crushing plate 204, the support spring 214 can drive the support frame 212 to return to its original position. A rubber ring 215 is fixedly installed on the inner wall of the support groove 216. When the support frame 212 moves upward quickly, it contacts the rubber ring 215 and applies pressure. The rubber ring 215 gradually deforms under the compression of the support frame 212. The rubber ring 215 can provide buffer protection for the support frame 212. The support frame 212 abuts against the crushing plate 204.

[0037] The support frame 212 contacts the inner wall of the feed box 10. The bottom of the support frame 212 is set as an inclined surface. A semi-circular groove is opened on the front side of the support frame 212. The elastic coefficient of the support spring 214 is less than the elastic coefficient of the return spring 206, so that the support frame 212 can move upward under the pressure of the crushing plate 204.

[0038] In this embodiment, during operation: the dispersing plate 13 rotates and contacts the crushing plate 204, squeezing the crushing plate 204. The crushing plate 204 moves downwards under the pressure of the dispersing plate 13. This downward movement of the crushing plate 204 causes the connecting rod 202 to move downwards, which in turn causes the connecting plate 203 to move downwards. The downward movement of the crushing plate 204 further squeezes the agglomerated plastic residue remaining on the top of the microporous plate 201. The agglomerated plastic undergoes secondary dispersion under the pressure of the crushing plate 204. The dispersing plate 13 continues... After rotating and disengaging from the crushing plate 204, the connecting plate 203 moves upward under the elastic force of the return spring 206. The upward movement of the connecting plate 203 drives the connecting rod 202 to move upward, which in turn drives the crushing plate 204 to move upward and reset. At the same time, the upward movement of the connecting rod 202 drives the hollow block 205 to move upward. The upward movement of the hollow block 205 strikes the bottom of the microporous plate 201. The microporous plate 201 vibrates due to the strike of the hollow block 205, which accelerates the feeding speed of the recycled plastic.

[0039] The crushing plate 204 moves downward to disengage from the support frame 212. After the support frame 212 disengages from the crushing plate 204, it moves downward to reset under the elastic force of the support spring 214. When the connecting rod 202 moves upward, causing the crushing plate 204 to move upward to reset, the crushing plate 204 moves upward to contact the bottom of the support frame 212 and presses against it. The support frame 212 moves upward under the pressure of the crushing plate 204. The reciprocating motion of the support frame 212 affects the return of the splashed material inside the feed box 10. The recycled plastic is shielded, and if the support frame 212 is impacted by a large piece of recycled plastic, the support frame 212 moves upward rapidly upon impact. The support frame 212 moves upward rapidly and comes into contact with the rubber ring 215, applying pressure. The rubber ring 215 gradually deforms under the pressure of the support frame 212. The gradual deformation of the rubber ring 215 causes the support frame 212 to move upward slowly, thereby protecting the components on the surface of the feed box 10 and ensuring the continuity of recycled plastic feeding.

[0040] 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 variations 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 PET film extrusion die based on plastic reutilization, characterized by, The equipment includes an injection molding machine (1), which is located on the top of the ground. An injection molding frame (2) is fixedly installed on the front and rear sides of the injection molding machine (1). A docking frame (3) is fixedly installed on the top of the injection molding frame (2). An upper mold (5) is slidably installed on the circumferential surface of the docking frame (3). A connecting frame (6) is fixedly installed on the right side of the injection molding machine (1). A servo motor (7) is fixedly installed on the top of the connecting frame (6). A lead screw (8) is fixedly installed at the output end of the servo motor (7). A T-shaped rod (9) is slidably installed on the inner wall of the connecting frame (6). A feeding box (10) is fixedly installed on the top of the injection molding machine (1). The feeding box (10) is used to feed recycled plastic. A stepper motor (11) is fixedly installed on the left side of the feeding box (10). A rotating rod (12) is fixedly installed at the output end of the stepper motor (11). Linkage plate (14), the linkage plate (14) is fixedly installed on the circumferential surface of the rotating rod (12), the linkage plate (14) is used to detect the working status of the feed box (10), and a load-bearing rod (15) is fixedly installed on the top of the injection molding equipment (1). The load-bearing plate (16) is slidably installed on the circumferential surface of the load-bearing rod (15). The upper and lower walls of the load-bearing plate (16) are fixedly perforated with protective rings (17), which are used to limit the movement of the lead screw (8). A grooved ring (18) is fixedly installed on the circumferential surface of the lead screw (8); Elastic telescopic block (19), the elastic telescopic block (19) is fixedly installed on the left side of the connecting frame (6), the elastic telescopic block (19) is used to limit the load-bearing plate (16); The T-shaped rod (9) is threadedly connected to the lead screw (8), the bottom of the T-shaped rod (9) is fixedly connected to the upper mold (5), the lower mold (4) is slidably installed on the circumferential surface of the docking frame (3), the inside of the feed box (10) is provided with a crushing component for secondary crushing of the recycled plastic after agglomeration, and a protective component is provided on the front side of the feed box (10). The top of the load-bearing plate (16) is set as an arc surface, and a spring is provided between the load-bearing plate (16) and the injection molding equipment (1). A dispersion plate (13) is fixedly installed on the circumferential surface of the rotating rod (12). The crushing assembly includes a microporous plate (201), a connecting rod (202), a connecting plate (203), a crushing plate (204), and a hollow block (205). The microporous plate (201) is fixedly installed on the inner wall of the feed box (10). The connecting rod (202) slides through the upper and lower walls of the microporous plate (201). The connecting plate (203) is fixedly installed at the bottom of the connecting rod (202). The crushing plate (204) is fixedly installed on the circumferential surface of the connecting rod (202). The hollow block (205) is fixedly installed on the circumferential surface of the connecting rod (202). A reset spring (206) is provided between the connecting plate (203) and the microporous plate (201), the crushing plate (204) is in contact with the dispersing plate (13), and the hollow block (205) is in contact with the bottom of the microporous plate (201); The protective assembly includes a U-shaped rod (211), a support frame (212), a support ring (213), and a support groove (216). The support groove (216) is located on the front side of the feed box (10). The U-shaped rod (211) is fixedly installed on the inner wall of the support groove (216). The support frame (212) is slidably installed on the circumferential surface of the U-shaped rod (211). The support ring (213) is fixedly installed on the circumferential surface of the U-shaped rod (211). A support spring (214) is provided between the support frame (212) and the support ring (213), a rubber ring (215) is fixedly installed on the inner wall of the support groove (216), and the support frame (212) abuts against the crushing plate (204); The support frame (212) is in contact with the inner wall of the feed box (10), the bottom of the support frame (212) is set as an inclined surface, and a semi-circular groove is opened on the front side of the support frame (212).

Images