Plastic mold recycling device

Abstract

The invention discloses a plastic mold recycling device, which is applied to the technical field of plastic mold recycling and comprises a fixed pedestal, one side of the fixed pedestal is in bolted connection with a crushing chamber, and the top and the bottom of the crushing chamber are fixedly communicated with a feeding hopper and a double-port discharging hopper respectively. And after being put into the crushing chamber through the plastic mold, the materials are crushed into plastic particles through the crushing mechanism. And then the plastic particles are filtered through the screening mechanism, consistent particles pass through a first through hole and are discharged from the interior of a double-opening discharging hopper, and plastic with large particles is pushed into a vertical cylinder through a reciprocating push plate. And then the lifting auger lifts the plastic particles upwards, and the plastic with large particles flows back into the feeding hopper through the discharging chute to be crushed again until the plastic is crushed thoroughly, and the plastic can pass through the first through hole. And therefore, the uniformity of the plastic particles crushed by the plastic mold is improved, the uniform size of the plastic particle discharging opening is kept, and subsequent melting reproduction and utilization are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of plastic mold recycling, and particularly relates to a plastic mold recycling and reusing device. Background Art

[0002] After long-term use, plastic molds will age and be damaged. In order to reduce environmental pollution, plastic molds should be recycled and reused.

[0003] At present, a Chinese invention with the publication number: CN116175826B discloses a plastic mold recycling device. The common plastic mold recycling method generally involves crushing the plastic mold into plastic particles by a crusher and then melting them for re-production. However, the existing crushers are difficult to uniformly crush the plastic mold at one time, and there are differences in the sizes of the crushed plastic particles, which are not uniform enough. This leads to incomplete melting of the larger plastic particles when the plastic particles are remelted. The current solution is generally to collect the larger plastic particles and put them back into the crusher for crushing again, but this method has certain defects. Firstly, it is troublesome to collect the larger plastic particles, which will reduce the crushing efficiency of the crusher. Secondly, even after the larger plastic particles are put back into the crusher for crushing again, there will still be a small part of the plastic particles that are not evenly crushed. Therefore, it is often necessary to collect the plastic particles and crush them again multiple times, further reducing the crushing efficiency of the crusher, thus affecting the recycling and processing of plastic molds. Summary of the Invention

[0004] The purpose of the present invention is to provide a plastic mold recycling and reusing device, which has the advantages of improving the uniformity of crushing plastic molds into plastic particles, keeping the sizes of the plastic particle discharge ports unified, and facilitating subsequent melting and re-production and utilization.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A plastic mold recycling and reusing device includes a fixed pedestal. One side of the fixed pedestal is bolted with a crushing chamber. The top and bottom of the crushing chamber are respectively fixedly communicated with a feeding funnel and a double-port discharge hopper. The side of the crushing chamber away from the fixed pedestal is bolted with a vertical cylinder. A crushing mechanism is arranged inside the crushing chamber. Screening mechanisms and recycling mechanisms that cooperate with the crushing mechanism are respectively arranged inside the double-port discharge hopper and the vertical cylinder.

[0006] With the above technical solution, after the plastic mold is placed inside the crushing chamber, it is crushed into plastic particles by the crushing mechanism. Then, the plastic particles are filtered by the screening mechanism. The particles of consistent size pass through the first through-hole and are discharged from the inside of the double-port discharge hopper, while the larger plastic particles are pushed into the vertical cylinder by the reciprocating push plate. Then, the plastic particles are lifted upward by the feeding auger, and the larger plastic particles are returned to the inside of the feeding funnel through the discharge chute for re-crushing until they are thoroughly crushed and can pass through the first through-hole. Thus, the uniformity of crushing the plastic mold into plastic particles is improved, the size of the plastic particle discharge port is kept uniform, which is convenient for subsequent melting and recycling. By rotating the threaded shaft and the threaded sliding sleeve to engage in a thread, the sliding plate is driven to slide inside the fixed pedestal, so that the second through-hole, which was originally completely connected to the first through-hole, is adjusted to be partially connected. Thus, the inner diameter of the passable hole is reduced, and the discharge size of the plastic particles after crushing can be adjusted, improving the practicality.

[0007] The present invention is further configured as follows: The crushing mechanism includes a reduction motor bolted to one side of the top of the fixed pedestal away from the crushing chamber. The output end of the reduction motor is bolted with an output main shaft. On both sides inside the crushing chamber, a first rotating cylinder and a second rotating cylinder are respectively rotatably connected. The end of the output main shaft away from the reduction motor is bolted to the first rotating cylinder. At the ends of the first rotating cylinder and the second rotating cylinder away from the output main shaft, circular gears that mesh with each other are bolted. On the surfaces of the first rotating cylinder and the second rotating cylinder, crushing cutters are symmetrically welded.

[0008] With the above technical solution, by starting the reduction motor, the output main shaft is used to drive the first rotating cylinder to rotate forward and the second rotating cylinder to rotate backward, thereby driving the crushing cutters on the surface to crush the plastic mold.

[0009] The present invention is further configured as follows: The screening mechanism includes a reciprocating push plate slidably sleeved inside the fixed pedestal. At the top of the inner cavity of the double-port discharge hopper, a fixing plate is welded to the bottom of the reciprocating push plate. A first through-hole is opened inside the fixing plate. At the end of the reciprocating push plate away from the fixing plate, a swing link that is slidably connected to the fixed pedestal is provided. At the end of the swing link close to the reciprocating push plate, a connecting rotating shaft bolted to the reciprocating push plate is rotatably connected. At the top and bottom of the end of the swing link away from the reciprocating push plate, an upper turntable and a lower turntable rotatably connected to the fixed pedestal are respectively provided. At the end of the swing link away from the reciprocating push plate, an eccentric rotating rod welded to the upper turntable and the lower turntable is rotatably connected.

[0010] With the above technical solution, after one end of the swing link rotates on the surface of the eccentric rotating rod and simultaneously swings between the upper turntable and the lower turntable, the other end of the swing link rotates with the connecting rotating shaft to push the reciprocating push plate to slide back and forth on the top of the fixing plate, pushing the larger plastic particles on the top of the fixing plate into the vertical cylinder.

[0011] The present invention is further configured such that: a second bevel gear is fixedly sleeved at one end of the output main shaft close to the reduction motor, a first bevel gear rotatably connected to the fixed pedestal is engaged with the bottom of the second bevel gear, and synchronous pulleys are bolted to the top of the upper turntable and the bottom of the first bevel gear respectively.

[0012] With the above technical solution, the second bevel gear is driven by the output main shaft to rotate and engage with the first bevel gear to generate rotation, and the first bevel gear drives the upper turntable through the synchronous pulley and the synchronous belt, so that the upper turntable rotates synchronously with the first bevel gear.

[0013] The present invention is further configured such that: a synchronous belt is sleeved on the surfaces of the two synchronous pulleys, and mutually engaged teeth and grooves are provided on the inner surface of the synchronous belt and the outer surfaces of the two synchronous pulleys.

[0014] With the above technical solution, the transmission stability is improved, and the phenomenon of slipping and loosening is prevented.

[0015] The present invention is further configured such that: the top and bottom of the vertical cylinder are respectively fixedly communicated with a discharge chute fixedly communicated with the feed hopper and a feed chute fixedly communicated with the double-port discharge hopper, an L-shaped connecting cylinder bolted to the bottom of the fixed pedestal is bolted to the bottom of the vertical cylinder, and the L-shaped connecting cylinder penetrates through the center of the bottom of the double-port discharge hopper.

[0016] With the above technical solution, the plastic particles filtered out at the top of the fixed plate by the reciprocating push plate are pushed into the vertical cylinder through the feed chute, and then the recycling mechanism lifts the plastic particles upward, so that the plastic particles with larger particles can be reflowed into the feed hopper through the discharge chute for crushing.

[0017] The present invention is further configured such that: the recycling mechanism includes a first connecting shaft bolted to the bottom of the lower turntable, a third bevel gear rotatably connected to the L-shaped connecting cylinder is bolted to the bottom of the first connecting shaft, a feeding auger is rotatably connected inside the vertical cylinder, a third connecting shaft is welded to the bottom of the feeding auger, a fifth bevel gear rotatably connected to the vertical cylinder is bolted to the bottom of the third connecting shaft, a second connecting shaft is rotatably connected inside the L-shaped connecting cylinder, and fourth bevel gears respectively engaged with the third bevel gear and the fifth bevel gear are bolted to both ends of the second connecting shaft.

[0018] With the above technical solution, the lower turntable drives the third bevel gear to engage with the fourth bevel gear through the first connecting shaft, so that the third connecting shaft rotates synchronously after engaging with the fourth bevel gear through the fifth bevel gear, and the third connecting shaft can drive the feeding auger to rotate inside the vertical cylinder, and the conveying force of the feeding auger is used to lift and convey the plastic particles with larger particles to the top, and then reflow them into the feed hopper through the discharge chute for re-crushing.

[0019] The present invention is further configured such that: a sliding plate slidably connected to the fixed pedestal is provided at the bottom of the fixed plate, a second through hole communicating with the first through hole is opened inside the sliding plate, a threaded shaft is rotatably connected to one side of the bottom of the fixed pedestal close to the sliding plate, and a threaded sliding sleeve threadedly sleeved with the threaded shaft is welded to one side of the bottom of the sliding plate far from the second through hole.

[0020] By adopting the above technical solution, by driving the sliding plate to slide inside the fixed pedestal, the second through hole that was originally completely communicated with the first through hole is adjusted to be partially communicated. Thus, the size of the discharged material after the plastic particles are crushed can be adjusted.

[0021] The present invention is further configured such that: support legs are bolted to both sides of the bottom of the crushing chamber and both sides of the bottom of the fixed pedestal far from the crushing chamber, a detachable side plate is bolted to the other side of the crushing chamber, and a dust-proof cover plate is hinged to one side of the top of the feed hopper close to the vertical cylinder.

[0022] By adopting the above technical solution, the crushing chamber can be conveniently opened by installing the detachable side plate, so as to replace the easily worn crushing cutters inside. At the same time, by covering the dust-proof cover plate on the top of the feed hopper, dust and impurities can be prevented from entering when not in use.

[0023] The present invention is further configured such that: a scale is marked on one side of the bottom of the sliding plate close to the threaded sliding sleeve.

[0024] By adopting the above technical solution, it is convenient to finely slide and adjust the sliding plate through the scale, so as to accurately control the size of the discharged material after the plastic particles are crushed.

[0025] In summary, the present invention has the following beneficial effects: 1. After the plastic mold is placed inside the crushing chamber, it is crushed into plastic particles by the crushing mechanism. Then, the plastic particles are filtered by the screening mechanism. The particles with consistent size pass through the first through hole and are discharged from the double-port discharge hopper, while the larger plastic particles are pushed into the vertical cylinder by the reciprocating push plate. Then, the plastic particles are lifted upward by the feeding auger, and the larger plastic particles are returned to the feed hopper through the discharge chute for re-crushing until they can pass through the first through hole after being thoroughly crushed, thereby improving the uniformity of crushing the plastic mold into plastic particles, keeping the size of the plastic particle discharge port uniform, and facilitating subsequent melting and recycling; 2. By rotating the threaded shaft and engaging it with the threaded sliding sleeve, the sliding plate is driven to slide inside the fixed pedestal, so that the second through hole that was originally completely communicated with the first through hole is adjusted to be partially communicated. Thus, the inner diameter of the passable hole is reduced, and the size of the discharged material after the plastic particles are crushed can be adjusted, improving the practicability. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the overall structural sectional view of the present invention; Figure 3 is the structural sectional view of the crushing chamber of the present invention; Figure 4 is the structural schematic diagram of the reciprocating push plate of the present invention; Figure 5 is the structural sectional view of the sliding plate of the present invention; Figure 6 is the side sectional view of the partial structure of the present invention.

[0027] Reference numerals: 1, fixed pedestal; 2, crushing chamber; 3, feed hopper; 4, double-port discharge hopper; 5, crushing mechanism; 501, reduction motor; 502, output main shaft; 503, first rotating cylinder; 504, second rotating cylinder; 505, circular gear; 506, crushing cutter; 6, screening mechanism; 601, reciprocating push plate; 602, swing link; 603, connecting rotating shaft; 604, upper turntable; 605, lower turntable; 606, eccentric rotating rod; 607, synchronous pulley; 608, synchronous belt; 609, first bevel gear; 610, second bevel gear; 611, fixing plate; 612, first through hole; 613, sliding plate; 614, second through hole; 615, threaded sliding sleeve; 616, threaded shaft; 7, recovery mechanism; 701, first connecting shaft; 702, third bevel gear; 703, second connecting shaft; 704, fourth bevel gear; 705, fifth bevel gear; 706, third connecting shaft; 707, lifting auger; 8, vertical cylinder; 9, feed chute; 10, discharge chute; 11, L-shaped connecting cylinder; 12, support leg; 13, dust-proof cover plate; 14, detachable side plate; 15, scale. Detailed Description of the Invention

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5, A plastic mold recycling device, including a fixed pedestal 1, a crushing chamber 2 is bolted to one side of the fixed pedestal 1, a feeding funnel 3 and a double-port discharging hopper 4 are respectively fixedly communicated with the top and bottom of the crushing chamber 2, a vertical cylinder 8 is bolted to the side of the crushing chamber 2 away from the fixed pedestal 1, a crushing mechanism 5 is arranged inside the crushing chamber 2, and a screening mechanism 6 and a recycling mechanism 7 which are used in cooperation with the crushing mechanism 5 are respectively arranged inside the double-port discharging hopper 4 and the vertical cylinder 8. After the plastic mold is put into the crushing chamber 2, it is crushed into plastic particles by the crushing mechanism 5. Then, the plastic particles are filtered by the screening mechanism 6. The particles with consistent size pass through the first through hole 612 and are discharged from the inside of the double-port discharging hopper 4, while the larger plastic particles are pushed into the vertical cylinder 8 by the reciprocating push plate 601. Then, the plastic particles are lifted upward by the feeding auger 707, and the larger plastic particles are refluxed into the feeding funnel 3 through the discharging chute 10 for re-crushing until they are thoroughly crushed and can pass through the first through hole 612. Thus, the uniformity of crushing the plastic mold into plastic particles is improved, the size of the plastic particle discharging port is kept unified, which is convenient for subsequent melting and re-production and utilization. By rotating the threaded shaft 616 to engage with the threaded sliding sleeve 615, the sliding plate 613 is driven to slide inside the fixed pedestal 1, so that the second through hole 614, which was originally completely communicated with the first through hole 612, is adjusted to be partially communicated. Thus, the inner diameter of the passable hole is reduced, and the discharging size of the plastic particles after crushing can be adjusted, improving the practicability.

[0030] Reference Figure 2 , Figure 3 , The crushing mechanism 5 includes a reduction motor 501 bolted to the side of the top of the fixed pedestal 1 away from the crushing chamber 2. The output end of the reduction motor 501 is bolted with an output main shaft 502. The two sides inside the crushing chamber 2 are respectively rotatably connected with a first rotating cylinder 503 and a second rotating cylinder 504. One end of the output main shaft 502 away from the reduction motor 501 is bolted with the first rotating cylinder 503. Circular gears 505 which are meshed with each other are bolted to the ends of the first rotating cylinder 503 and the second rotating cylinder 504 away from the output main shaft 502. Crushing cutters 506 are symmetrically welded on the surfaces of the first rotating cylinder 503 and the second rotating cylinder 504. By starting the reduction motor 501, the output main shaft 502 is used to drive the first rotating cylinder 503 to rotate forward and the second rotating cylinder 504 to rotate backward, so as to drive the crushing cutters 506 on the surface to crush the plastic mold.

[0031] Reference Figure 2 , Figure 4, the screening mechanism 6 includes a reciprocating push plate 601 slidably sleeved inside the fixed pedestal 1. A chute for cooperating with the reciprocating push plate 601 is provided inside the fixed pedestal 1. A slider slidably connected to the chute is fixedly connected to the bottom of the reciprocating push plate 601. A fixing plate 611 slidably connected to the bottom of the reciprocating push plate 601 is welded to the top of the inner cavity of the double-port discharge hopper 4. A first through hole 612 is opened inside the fixing plate 611. One end of the reciprocating push plate 601 away from the fixing plate 611 is provided with a swing link 602 slidably connected to the fixed pedestal 1. One end of the swing link 602 close to the reciprocating push plate 601 is rotatably connected to a connecting rotating shaft 603 bolted to the reciprocating push plate 601. The top and bottom of the end of the swing link 602 away from the reciprocating push plate 601 are respectively provided with an upper turntable 604 and a lower turntable 605 rotatably connected to the fixed pedestal 1. One end of the swing link 602 away from the reciprocating push plate 601 is rotatably connected to an eccentric rotating rod 606 welded to the upper turntable 604 and the lower turntable 605. By the rotation of one end of the swing link 602 on the surface of the eccentric rotating rod 606 and the simultaneous swinging between the upper turntable 604 and the lower turntable 605, the other end of the swing link 602 rotates with the connecting rotating shaft 603 to push the reciprocating push plate 601 to slide reciprocally on the top of the fixing plate 611, and the larger plastic particles on the top of the fixing plate 611 are pushed into the vertical cylinder 8.

[0032] Reference Figure 2 , Figure 4 , a second bevel gear 610 is fixedly sleeved on the surface of the output main shaft 502 close to the reduction motor 501. A first bevel gear 609 rotatably connected to the fixed pedestal 1 is meshed with the bottom of the second bevel gear 610. Synchronous wheels 607 are bolted to the top of the upper turntable 604 and the bottom of the first bevel gear 609. The rotation of the second bevel gear 610 driven by the output main shaft 502 meshes with the first bevel gear 609 to generate rotation. The first bevel gear 609 drives the upper turntable 604 through the synchronous wheels 607 and the synchronous belt 608, so that the upper turntable 604 rotates synchronously with the first bevel gear 609.

[0033] Reference Figure 4 , the surfaces of the two synchronous wheels 607 are drivingly sleeved with a synchronous belt 608. Engaged teeth and grooves are provided on the inner surface of the synchronous belt 608 and the outer surfaces of the two synchronous wheels 607. Improve the stability of transmission and prevent the phenomenon of slipping and loosening.

[0034] Reference Figure 1 , Figure 2, the top and bottom of the vertical cylinder 8 are respectively fixedly connected and communicated with a discharge chute 10 fixedly connected with the feeding funnel 3 and a feeding chute 9 fixedly connected with the double-port discharge hopper 4. The bottom of the vertical cylinder 8 is bolted with an L-shaped connecting cylinder 11 bolted to the bottom of the fixed pedestal 1, and the L-shaped connecting cylinder 11 penetrates through the center of the bottom of the double-port discharge hopper 4. The plastic particles filtered out from the top of the fixed plate 611 are pushed into the vertical cylinder 8 through the feeding chute 9 by the reciprocating push plate 601, and then the recycling mechanism 7 lifts the plastic particles upward, so that the larger plastic particles can be recycled back into the feeding funnel 3 through the discharge chute 10 for crushing.

[0035] Reference Figure 2 , the recycling mechanism 7 includes a first connecting shaft 701 bolted to the bottom of the lower turntable 605. The bottom of the first connecting shaft 701 is bolted with a third bevel gear 702 rotatably connected with the L-shaped connecting cylinder 11. A feeding auger 707 is rotatably connected inside the vertical cylinder 8. The bottom of the feeding auger 707 is welded with a third connecting shaft 706. The bottom of the third connecting shaft 706 is bolted with a fifth bevel gear 705 rotatably connected with the vertical cylinder 8. A second connecting shaft 703 is rotatably connected inside the L-shaped connecting cylinder 11. Both ends of the second connecting shaft 703 are bolted with fourth bevel gears 704 respectively meshing with the third bevel gear 702 and the fifth bevel gear 705. The lower turntable 605 drives the third bevel gear 702 to mesh with the fourth bevel gear 704 through the first connecting shaft 701, so that the third connecting shaft 706 rotates synchronously after meshing with the fourth bevel gear 704 through the fifth bevel gear 705, so that the third connecting shaft 706 can drive the feeding auger 707 to rotate inside the vertical cylinder 8, and the larger plastic particles are lifted and conveyed to the top by the conveying force of the feeding auger 707, and then flow back into the feeding funnel 3 through the discharge chute 10 for re-crushing.

[0036] Reference Figure 2 , Figure 5 , a sliding plate 613 slidably connected with the fixed pedestal 1 is arranged at the bottom of the fixed plate 611. A second through hole 614 communicating with the first through hole 612 is opened inside the sliding plate 613. A threaded shaft 616 is rotatably connected to one side of the bottom of the fixed pedestal 1 close to the sliding plate 613. A threaded sliding sleeve 615 threadedly sleeved with the threaded shaft 616 is welded to one side of the bottom of the sliding plate 613 far from the second through hole 614. By driving the sliding plate 613 to slide inside the fixed pedestal 1, the second through hole 614 is adjusted from being completely communicated with the first through hole 612 to being partially communicated. Thus, the discharge size of the crushed plastic particles can be adjusted.

[0037] Reference Figure 1, support legs 12 are bolted to both sides of the bottom of the crushing chamber 2 and both sides of the bottom of the fixed pedestal 1 away from the crushing chamber 2. A detachable side plate 14 is bolted to the other side of the crushing chamber 2. A dust-proof cover plate 13 is hinged to one side of the top of the feed hopper 3 close to the vertical cylinder 8. By installing the detachable side plate 14, the crushing chamber 2 can be conveniently opened to replace the easily worn crushing cutter 506 inside. At the same time, by covering the dust-proof cover plate 13 on the top of the feed hopper 3, dust and impurities can be prevented from entering when not in use.

[0038] Reference Figure 5 , a scale table 15 is marked on one side of the bottom of the sliding plate 613 close to the threaded sliding sleeve 615. It is convenient to finely slide and adjust the sliding plate 613 through the scale table 15, so as to accurately control the size of the discharged material after the plastic particles are crushed.

[0039] Brief description of the use process: First, place the plastic mold into the interior of the feed hopper 3, and then start the reduction motor 501 to drive the first rotating cylinder 503 to rotate by using the output main shaft 502. The first rotating cylinder 503 is meshed and driven by the circular gear 505 to make the second rotating cylinder 504 rotate in the reverse direction, and then drive the crushing cutter 506 on the surface to crush the plastic mold, so that the plastic mold is crushed into particles and then falls downward.

[0040] After that, the plastic particles are screened through the first through hole 612, so that the smaller particles can fall downward and be discharged through the first through hole 612, while the larger plastic particles remain on the top of the fixed plate 611. At the same time, the output main shaft 502 drives the second bevel gear 610 to rotate and mesh with the first bevel gear 609 to generate rotation. The first bevel gear 609 drives the upper turntable 604 through the synchronous pulley 607 and the synchronous belt 608, so that the upper turntable 604 rotates synchronously with the first bevel gear 609. Then, the upper turntable 604 drives the eccentric rotating rod 606 and the lower turntable 605 to rotate, so that one end of the swing connecting rod 602 rotates on the surface of the eccentric rotating rod 606 and swings between the upper turntable 604 and the lower turntable 605 at the same time. Furthermore, the other end of the swing connecting rod 602 rotates with the connecting rotating shaft 603 and pushes the reciprocating push plate 601 to slide reciprocally on the top of the fixed plate 611. At the same time, through the setting of the chute and the slider, further limitation can be imposed on the reciprocating push plate 601, so that the movement stability of the reciprocating push plate 601 is better. The larger plastic particles on the top of the fixed plate 611 can be pushed into the interior of the vertical cylinder 8 through the feed chute 9. At the same time, the dropped particles fall onto the reciprocating push plate 601. When the reciprocating push plate 601 is running, the particles are scraped off by the inner wall of the fixed pedestal 1, and when pushed again, the scraped particles can be spread out on the sliding plate 613, making it easier to drop the material.

[0041] Subsequently, the lower turntable 605 drives the third bevel gear 702 to engage with the fourth bevel gear 704 through the first connecting shaft 701, so that the third connecting shaft 706 engages with the fourth bevel gear 704 through the fifth bevel gear 705 and rotates synchronously, enabling the third connecting shaft 706 to drive the feeding auger 707 to rotate inside the vertical cylinder 8, and using the conveying force of the feeding auger 707 to lift and convey the larger plastic particles to the top. Finally, it flows back into the feeding funnel 3 again through the discharge chute 10, so that the crushing cutter 506 can crush it again. Even if there are still some plastic particles with larger particle sizes after crushing, they can still be re-crushed through the above working method until the plastic particles are crushed to a size that can be discharged through the first through hole 612, ensuring that the plastic mold placed in the crusher can be crushed into relatively uniform particle sizes. At the same time, by rotating the threaded shaft 616 and the threaded sliding sleeve 615 to engage in threads, the sliding plate 613 is driven to slide inside the fixed pedestal 1, adjusting the second through hole 614 from being completely connected to the first through hole 612 to being partially connected. Thus, the inner diameter of the hole through which the plastic particles can pass is reduced, and then the size of the crushed plastic particles is adjusted.

[0042] This specific embodiment is only an explanation of the present invention and is not a limitation thereof. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A plastic mold recycling and reuse device, comprising a fixed pedestal (1), characterized in that: On one side of the fixed pedestal (1), a crushing chamber (2) is bolted. At the top and bottom of the crushing chamber (2), a feeding funnel (3) and a double-port discharging hopper (4) are fixedly connected respectively. On the side of the crushing chamber (2) far from the fixed pedestal (1), a vertical cylinder (8) is bolted. Inside the crushing chamber (2), a crushing mechanism (5) is arranged. Inside the double-port discharging hopper (4) and the vertical cylinder (8), a screening mechanism (6) and a recycling mechanism (7) which are used in cooperation with the crushing mechanism (5) are arranged respectively.

2. The recycling and reuse device for a plastic mold according to claim 1, characterized in that: The crushing mechanism (5) includes a reduction motor (501) bolted to the top of the fixed pedestal (1) on the side far from the crushing chamber (2). The output end of the reduction motor (501) is bolted with an output main shaft (502). On both sides inside the crushing chamber (2), a first rotating cylinder (503) and a second rotating cylinder (504) are rotatably connected respectively. One end of the output main shaft (502) far from the reduction motor (501) is bolted to the first rotating cylinder (503). At the ends of the first rotating cylinder (503) and the second rotating cylinder (504) far from the output main shaft (502), circular gears (505) which mesh with each other are bolted. On the surfaces of the first rotating cylinder (503) and the second rotating cylinder (504), crushing cutters (506) are symmetrically welded.

3. A plastic mold recycling and reuse device according to claim 1, characterized in that: The screening mechanism (6) includes a reciprocating push plate (601) slidably sleeved inside the fixed pedestal (1). At the top of the inner cavity of the double-port discharging hopper (4), a fixing plate (611) which is slidably connected to the bottom of the reciprocating push plate (601) is welded. Inside the fixing plate (611), a first through hole (612) is opened. One end of the reciprocating push plate (601) far from the fixing plate (611) is provided with a swing connecting rod (602) slidably connected to the fixed pedestal (1). One end of the swing connecting rod (602) close to the reciprocating push plate (601) is rotatably connected with a connecting rotating shaft (603) bolted to the reciprocating push plate (601). At the top and bottom of one end of the swing connecting rod (602) far from the reciprocating push plate (601), an upper turntable (604) and a lower turntable (605) rotatably connected to the fixed pedestal (1) are arranged respectively. One end of the swing connecting rod (602) far from the reciprocating push plate (601) is rotatably connected with an eccentric rotating rod (606) welded to the upper turntable (604) and the lower turntable (605).

4. A plastic mold recycling and reuse device according to claim 3, characterized in that: At one end of the surface of the output main shaft (502) close to the reduction motor (501), a second bevel gear (610) is fixedly sleeved. The bottom of the second bevel gear (610) meshes with a first bevel gear (609) rotatably connected to the fixed pedestal (1). At the top of the upper turntable (604) and the bottom of the first bevel gear (609), synchronous wheels (607) are bolted respectively.

5. The recycling and reuse device for a plastic mold according to claim 4, characterized in that: On the surfaces of the two synchronous wheels (607), a synchronous belt (608) is drivingly sleeved. On the inner surface of the synchronous belt (608) and the outer surfaces of the two synchronous wheels (607), meshing teeth and tooth grooves are opened.

6. The recycling and reuse device for a plastic mold according to claim 1, wherein: At the top and bottom of the vertical cylinder (8), there are respectively a discharge chute (10) fixedly connected to the feed hopper (3) and a feed chute (9) fixedly connected to the double-port discharge hopper (4). At the bottom of the vertical cylinder (8), there is an L-shaped connecting cylinder (11) bolted to the bottom of the fixed pedestal (1), and the L-shaped connecting cylinder (11) penetrates through the center of the bottom of the double-port discharge hopper (4).

7. A plastic mold recycling and reuse device according to claim 6, characterized in that: The recycling mechanism (7) includes a first connecting shaft (701) bolted to the bottom of the lower turntable (605). At the bottom of the first connecting shaft (701), there is a third bevel gear (702) rotatably connected to the L-shaped connecting cylinder (11). Inside the vertical cylinder (8), there is a feeding auger (707) rotatably connected. At the bottom of the feeding auger (707), there is a third connecting shaft (706) welded. At the bottom of the third connecting shaft (706), there is a fifth bevel gear (705) bolted to the vertical cylinder (8). Inside the L-shaped connecting cylinder (11), there is a second connecting shaft (703) rotatably connected. At both ends of the second connecting shaft (703), there are fourth bevel gears (704) respectively meshing with the third bevel gear (702) and the fifth bevel gear (705).

8. The recycling and reuse device for a plastic mold according to claim 3, characterized in that: At the bottom of the fixed plate (611), there is a sliding plate (613) slidably connected to the fixed pedestal (1). Inside the sliding plate (613), there is a second through hole (614) communicating with the first through hole (612). On one side of the bottom of the fixed pedestal (1) close to the sliding plate (613), there is a threaded shaft (616) rotatably connected. On the side of the bottom of the sliding plate (613) away from the second through hole (614), there is a threaded sliding sleeve (615) threaded onto the threaded shaft (616).

9. The recycling and reuse device for a plastic mold according to claim 1, wherein: On both sides of the bottom of the crushing chamber (2) and on both sides of the bottom of the fixed pedestal (1) away from the crushing chamber (2), there are support legs (12) bolted. On the other side of the crushing chamber (2), there is a detachable side plate (14). On one side of the top of the feed hopper (3) close to the vertical cylinder (8), there is a dust-proof cover plate (13) hinged.

10. A plastic mold recycling and reuse device according to claim 8, characterized in that: On one side of the bottom of the sliding plate (613) close to the threaded sliding sleeve (615), there is a scale table (15) marked.

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