Plastic crushing equipment with cyclic crushing function and method

Abstract

The invention discloses plastic crushing equipment with a cyclic crushing function and a method, and relates to the technical field of resource cyclic utilization, plastics are added to an input port of a box body, a chain belt plate is adjusted to prevent an extrusion roller from extruding the plastics to generate splashing, and a splash-proof plate rotates back and forth to block the splashed plastics and enable the plastics to fall to the extrusion roller, so that the plastic crushing efficiency is improved. Plastic is crushed through the extrusion roller, the contact area between the extrusion roller and materials is increased through the material grabbing rods, and particularly for plastic materials with irregular shapes or smooth surfaces, the material grabbing rods can take out impurities at dead corners of the extrusion roller, so that the situation that the extrusion roller is abraded due to accumulation of the impurities, and the crushed plastic falls onto the sieve plate is prevented; plastic which does not pass through the sieve plate is scraped into the flow guide plate through left-right reciprocating movement of the scraping plate, the plastic enters the spiral conveying barrel through the flow guide plate to be circularly crushed, plastic particles which cannot pass through the sieve plate originally can be reprocessed and utilized, the resource utilization rate is increased, and waste is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of resource recycling, and in particular to a plastic crushing device and method with a recycling crushing function. Background Art

[0002] Plastic crushing equipment with a cyclic crushing function is a machine that can repeatedly crush and reprocess plastic materials. The equipment can not only crush the plastic for the first time, but also continue to crush it through a cyclic process until the required particle size is obtained. This equipment is usually used in plastic recycling and waste treatment processes, so that plastic waste can be obtained after multiple crushing, cleaning, screening and other steps. The final qualified particles are suitable for reprocessing.

[0003] The patent with the patent announcement number CN217450343U relates to the field of resource recycling technology. The patent discloses a waste plastic crushing device, which relates to the field of plastic crushing technology, including a crushing box, the outer surface of which is fixedly connected to a support member, the upper surface of which is fixedly connected to a hopper, the inner rotation connection of the crushing box is two first rotating shafts, and the back of the crushing box is fixedly connected to two first motors. Through the cooperation between the first motor, the first rotating shaft, the crushing roller, the screen, the material trough and the transportation mechanism, the waste plastic can be crushed by the first motor, the first rotating shaft and the crushing roller, the crushed plastic can be screened by the screen, and the crushed particles with larger particles on the screen can be automatically and repeatedly crushed by the material trough and the transportation mechanism. Compared with manually taking out the crushed particles with larger particles on the screen and pouring them into the crushing box for repeated crushing, it is more time-saving and labor-saving, thereby effectively improving the crushing efficiency of the waste plastic.

[0004] The above patent can effectively improve the crushing efficiency of waste plastics, but the current equipment has the following problems: the flying plastic fragments may cause harm to the operator, such as scratches or collisions, and the broken impurities may accumulate on the outer wall of the extrusion roller, causing wear on the surface of the extrusion roller, thereby shortening the service life of the equipment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a plastic crushing device and method with a cyclic crushing function, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plastic crushing equipment with a circulating crushing function, comprising a box body and a spiral conveying cylinder, the spiral conveying cylinder is arranged on the left and right sides of the box body, a driving box is arranged on the front side of the box body, a chain belt plate is rotatably installed on the inner wall of the box body, and baffles are arranged on the left and right sides of the box body; it also includes a crushing device; wherein, the crushing device comprises an extrusion roller, a grabbing rod, a splash plate, a servo motor 1, a gear 1, a special-shaped gear, a servo motor 2, a spiral rod, a scraper, a push rod, a screen plate, a guide plate and a spiral conveying cylinder, the extrusion roller is fixedly installed on the output end of the driving box, the grabbing rod is fixedly installed on the output end of the driving box, the plastic is crushed by the extrusion roller, and the contact area with the material is increased by the grabbing rod, the splash plate is rotatably installed on the inner wall of the box body, the fixed end of the servo motor 1 is fixedly installed on the front side of the box body, the gear 1 is fixedly installed on the output end of the servo motor 1, the special-shaped gear is fixed The screw rod is fixedly mounted on the right side of the scraper, and the screen plate is slidably mounted on the inner wall of the box body. The crushed plastic falls onto the screen plate, and some fine plastics fall directly from the screen holes of the screen plate, while some larger plastics remain on the screen plate. At this time, the screw rod is driven to rotate by the output end of the servo motor 1, and the rotation of the screw rod causes the scraper to reciprocate left and right. The guide plate is fixedly mounted on the left side of the box body, and the spiral conveying cylinder is connected with the guide plate. The box body is opened by contacting the push rod with the baffle plate. At this time, the scraper will scrape the plastic on the screen plate into the guide plate, and the plastic enters the spiral conveying cylinder through the guide plate. Wherein, an auxiliary device for processing the plastic screened by the sieve plate and a cleaning device for cleaning the plastic are arranged inside the box.

[0007] According to the above technical solution, a No. 1 torsion spring is arranged between the splash guard and the box body, and the splash guard is reset by the No. 1 torsion spring. The gear 1 is meshed with the special-shaped gear, and the rotation of the gear 1 causes the special-shaped gear to rotate. A No. 1 spring is arranged between the screen plate and the box body, and the screen plate is reset by the No. 1 spring.

[0008] According to the above technical solution, the auxiliary device includes a vibration block and a trapezoidal block. The vibration block is fixedly installed on the front side of the box, and the trapezoidal block is fixedly installed on the top of the screen plate. The trapezoidal block moves downward to cause the screen plate to move downward. The movement of the screen plate drives the sealing plate to move at the same time. The movement of the screen plate will compress spring No. 1, and when the screen plate is reset by spring No. 1, it will contact the vibration block to generate vibration.

[0009] According to the above technical solution, the auxiliary device also includes a fixed frame, a movable block and a sealing plate. The fixed frame is fixedly installed on the front side of the scraper, the movable block is slidably installed on the circumferential surface of the fixed frame, and the sealing plate is fixedly installed on the bottom of the screen plate. A No. 2 spring is arranged between the movable block and the fixed frame, and the movable block is driven to reset by the arranged No. 2 spring. The right side of the movable block is arranged as an inclined surface. When the scraper moves to the right, the inclined surface of the movable block will contact the right-angle surface of the trapezoidal block, thereby moving inward and compressing the No. 2 spring at the same time. The inward movement of the movable block will enable the fixed frame to enter the inner wall of the trapezoidal block.

[0010] According to the above technical solution, the auxiliary device also includes a water inlet, a sliding rod and a water level rod. The water inlet is fixedly installed on the inner wall of the box body, the sliding rod is fixedly installed on the circumferential surface of the water inlet, and the water level rod is fixedly installed on the bottom of the inner wall of the box body. At this time, when water is added to the water inlet, the water level will gradually rise, causing the float to move upward along the water level rod.

[0011] According to the above technical solution, the auxiliary device also includes a floating plate and a sealing block. The floating plate is slidably installed on the circumferential surface of the water level rod, and the sealing block is slidably installed on the circumferential surface of the slide rail rod. A No. 3 spring is arranged between the sealing block and the slide rail rod. The floating plate moves upward to drive the touch rod to move until it contacts the inclined block, at which time the inclined block moves to the left, and the movement of the inclined block drives the sealing block to move along the slide rail rod. The movement of the sealing block will block the water inlet, and the sealing block is reset by the arranged No. 3 spring. A touch rod is arranged on the top of the floating plate, and an inclined block is arranged on the side of the sealing block close to the touch rod.

[0012] According to the above technical solution, the cleaning device includes a liquid storage tank, a nozzle and a piston rod. The liquid storage tank is fixedly installed on the right side of the box body, the nozzle is fixedly installed on the inner wall of the box body, the liquid storage tank is connected to the nozzle, one side of the piston rod is fixedly installed on the bottom of the sealing plate, and the other side of the piston rod is slidably installed on the inner wall of the liquid storage tank. A detergent is provided inside the liquid storage tank, and the piston rod is driven to move by the downward movement of the sealing plate. The movement of the piston rod will compress the detergent inside the liquid storage tank, causing it to be sprayed out through the nozzle.

[0013] According to the above technical solution, the cleaning device also includes a connecting rod, a driving plate, a mixing rod and an output port, the connecting rod is fixedly installed on the bottom of the sealing plate, the driving plate is fixedly installed on the bottom of the connecting rod, the mixing rod is rotatably installed on the inner wall of the driving plate, the circumferential surface of the mixing rod is provided with a reciprocating spiral groove, the driving plate is threadedly connected to the reciprocating spiral groove, the sealing plate moves downward to drive the connecting rod to move, the movement of the connecting rod drives the driving plate to move downward, the driving plate moves and contacts with the spiral groove to rotate the mixing rod.

[0014] A method for using a plastic crushing device with a cyclic crushing function comprises the following steps: Step 1: Add plastic to the input port of the box, and use the drive box to make the two squeezing rollers rotate relative to each other, and at the same time make the grabbing rod rotate, so that the squeezing rollers crush the plastic, and the grabbing rod increases the contact area with the material; Step 2: The chain belt plate is adjusted to prevent the squeezing roller from squeezing the plastic and causing splashing. The output end of the servo motor 1 rotates to drive the gear 1 to rotate. The rotation of the gear 1 causes the special-shaped gear to rotate. The rotation of the special-shaped gear causes the splash plate to rotate. The splash plate rotates back and forth to block the splashed plastic and make it fall to the squeezing roller. Step 3: The crushed plastic falls onto the sieve plate. Some tiny plastics will fall directly from the sieve holes of the sieve plate, while some larger plastics will remain on the sieve plate. At this time, the scraper moves back and forth left and right to scrape the plastic on the sieve plate onto the guide plate. The plastic enters the spiral conveyor barrel through the guide plate, and is transported to the highest point and then enters the box again for cyclic crushing.

[0015] The present invention provides a plastic crushing device and method with a cyclic crushing function, which has the following beneficial effects: (1) The invention, through the setting of the crushing device, adds plastic to the input port of the box body, adjusts the chain belt plate to prevent the squeezing roller from squeezing the plastic to produce splashes, and blocks the splashing plastic by rotating the splash plate back and forth and causing it to fall to the squeezing roller. The squeezing roller crushes the plastic, and the grabbing rod increases the contact area with the material, thereby improving the material grabbing ability. In particular, for some plastic materials with irregular shapes or smooth surfaces, the grabbing rod can better fix and pull them so that they can pass through the squeezing roller smoothly for crushing. The grabbing rod can also take out impurities in the dead corner of the squeezing roller to prevent these impurities from accumulating and causing wear on the squeezing roller. The crushed plastic falls onto the sieve plate. Some fine plastics will fall directly from the sieve holes of the sieve plate, while some larger plastics will remain on the sieve plate. The scraper moves back and forth left and right to scrape the plastic on the sieve plate into the guide plate. The plastic enters the spiral conveyor through the guide plate and is transported to the highest point before entering the box body again. Through cyclic crushing, plastic particles that were originally unable to pass through the sieve plate can be reprocessed and reused, thereby improving resource utilization and reducing waste.

[0016] (2) The invention, through the setting of auxiliary devices, enables the sieve plate to move downward through the movable block and the trapezoidal block and to contact the vibration block to generate vibration when it is reset. In this way, the particles blocked on the sieve holes can be caused to leave the sieve surface and enter the upper layer of the material, preventing the sieve holes from being blocked, thereby improving the screening efficiency. When the scraper moves to the right, the movable block contracts to prevent the sieve plate from always moving downward when the fixed frame moves, thereby causing the scraper to be unable to scrape off the plastic on the sieve plate. The screened plastic enters the bottom of the box. At this time, water is added to the water inlet. The water level will gradually rise, causing the float plate to move upward along the water level rod and block the water inlet through the sealing block and the slide rail rod, thereby controlling the water level inside the box. The appropriate water level can ensure that the particles are fully soaked and cleaned, while avoiding the waste of water resources.

[0017] (3) The invention, through the setting of the cleaning device, drives the piston rod to move by moving the sealing plate downward. The movement of the piston rod compresses the cleaning agent inside the liquid storage tank and makes it sprayed out through the nozzle. The automatic spraying of cleaning agent can clean at the same time during the crushing process. At the same time, the cleaning agent is added quantitatively, which reduces the operation steps of the staff, thereby improving the overall production efficiency. The sealing plate moves downward to drive the connecting rod to move. The movement of the connecting rod drives the driving plate to move downward. The driving plate moves and contacts with the spiral groove to rotate the mixing rod. The rotation of the mixing rod causes the cleaning agent to mix with the plastic and water, thereby improving the cleaning efficiency. The cleaned plastic is output through the output port. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the position structure of the squeezing roller and the grabbing rod of the present invention; Figure 3 This is a schematic diagram of the position structure of the screen plate and the scraper plate of the present invention; Figure 4 It is a schematic diagram of the position structure of the trapezoidal block and the screen plate of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement of part A; Figure 6 This is a schematic diagram of the position structure of the piston rod and the nozzle of the present invention; Figure 7 This is a schematic diagram of the position structure of the floating plate and the sealing block of the present invention.

[0019] In the figure: 1. box body; 2. drive box; 3. chain plate; 4. extrusion roller; 5. grab rod; 6. splash plate; 7. servo motor 1; 8. gear 1; 9. special-shaped gear; 10. servo motor 2; 11. screw rod; 12. scraper; 13. push rod; 14. screen plate; 15. guide plate; 16. screw conveyor cylinder; 20. vibration block; 21. trapezoidal block; 22. fixed frame; 23. movable block; 24. sealing plate; 25. water inlet; 26. slide rail rod; 27. water level rod; 28. floating plate; 29. ​​sealing block; 30. liquid storage tank; 31. nozzle; 32. piston rod; 33. connecting rod; 34. drive plate; 35. mixing rod; 36. output port. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 3One embodiment of the present invention is: a plastic crushing device with a cyclic crushing function, including a box body 1 and a spiral conveying cylinder 16, the spiral conveying cylinder 16 is arranged on the left and right sides of the box body 1, a driving box 2 is arranged on the front side of the box body 1, a chain belt plate 3 is rotatably installed on the inner wall of the box body 1, and baffles are arranged on the left and right sides of the box body 1; it also includes a crushing device; wherein the crushing device includes an extrusion roller 4, a grabbing rod 5, a splash plate 6, a servo motor 7, a gear 8, a special-shaped gear 9, a servo motor 2 10, a spiral rod 11, a scraper 12, and a push rod 1 3. Screen plate 14, guide plate 15 and spiral conveyor cylinder 16. Extrusion roller 4 is fixedly mounted on the output end of driving box 2. Grabbing rod 5 is fixedly mounted on the output end of driving box 2. Plastic is crushed by extrusion roller 4. Grabbing rod 5 increases the contact area with materials, thereby improving the material grabbing ability. Especially for some plastic materials with irregular shapes or smooth surfaces, grabbing rod 5 can better fix and pull them so that they can pass through extrusion roller 4 smoothly for crushing. Grabbing rod 5 can also bring out impurities in the dead corner of extrusion roller 4 to prevent these impurities from accumulating and causing wear of extrusion roller 4. Splash plate 6 is rotatably mounted on the inner wall of box body 1. The fixed end of servo motor 17 is fixedly mounted on the front side of box body 1. Gear 18 is fixedly mounted on the output end of servo motor 17. Special-shaped gear 9 is fixedly mounted on the front side of splash plate 6. Splashing plastic is blocked by back and forth rotation of splash plate 6 and made to fall to extrusion roller 4. The fixed end of servo motor 2 10 is fixedly mounted on the right side of box body 1. Screw rod 11 is fixedly mounted on the output end of servo motor 2 10. Scraper 12 is threadedly mounted on screw rod 1 1, the push rod 13 is fixedly installed on the right side of the scraper 12, the screen plate 14 is slidably installed on the inner wall of the box body 1, the guide plate 15 is fixedly installed on the left side of the box body 1, and the spiral conveying cylinder 16 is connected with the guide plate 15. The scraper 12 will scrape the plastic on the screen plate 14 into the guide plate 15, and the plastic enters the spiral conveying cylinder 16 through the guide plate 15, and is transported to the highest point and then enters the box body 1 again. Through the cycle crushing, the plastic particles that originally could not pass through the screen plate 14 can be reprocessed and reused, thereby improving the utilization rate of resources and reducing waste.

[0022] A No. 1 torsion spring is arranged between the splash plate 6 and the box body 1, and the splash plate 6 is reset by the No. 1 torsion spring. Gear 1 8 is meshed with the special-shaped gear 9. A No. 1 spring is arranged between the screen plate 14 and the box body 1, and the screen plate 14 is reset by the No. 1 spring.

[0023] A method for using a plastic crushing device with a cyclic crushing function comprises the following steps: Step 1: Add plastic to the input port of the box 1, drive the box 2 to make the two squeezing rollers 4 rotate relative to each other, and at the same time make the grabbing rod 5 rotate, so that the squeezing rollers 4 crush the plastic, and the grabbing rod 5 increases the contact area with the material; Step 2: The chain belt plate 3 is adjusted to prevent the squeezing roller 4 from squeezing the plastic and causing splashing. The output end of the servo motor 7 rotates to drive the gear 8 to rotate. The rotation of the gear 8 causes the special-shaped gear 9 to rotate. The rotation of the special-shaped gear 9 causes the splash plate 6 to rotate. The splash plate 6 rotates back and forth to block the splashed plastic and make it fall to the squeezing roller 4. Step 3: The crushed plastic falls onto the sieve plate 14. Some fine plastics will fall directly from the sieve holes of the sieve plate 14, while some larger plastics will remain on the sieve plate 14. At this time, the scraper 12 moves back and forth left and right to scrape the plastic on the sieve plate 14 onto the guide plate 15. The plastic enters the spiral conveyor cylinder 16 through the guide plate 15, and is conveyed to the highest point and then enters the box 1 again for cyclic crushing.

[0024] When this embodiment is working, the two squeezing rollers 4 are driven to rotate relative to each other by the driving box 2, and the grabbing rod 5 is rotated at the same time. At this time, plastic is added to the input port of the box body 1, and the chain plate 3 is adjusted to prevent the squeezing roller 4 from squeezing the plastic to produce splashes. The output end of the servo motor 7 rotates to drive the gear 8 to rotate, and the rotation of the gear 8 rotates the special-shaped gear 9. The rotation of the special-shaped gear 9 rotates the splash plate 6. The splashing plastic is blocked by the back and forth rotation of the splash plate 6 and is caused to fall to the squeezing roller 4. The squeezing roller 4 crushes the plastic, and the grabbing rod 5 increases the contact area with the material, thereby improving the material grabbing ability. In particular, for some plastic materials with irregular shapes or smooth surfaces, the grabbing rod 5 can better fix and pull them, so that they can pass through the squeezing roller 4 smoothly for crushing, and the grabbing rod 5 can also make the squeezing roller 4 dead corner The impurities at the sieve are brought out to prevent the accumulation of these impurities and the wear of the extrusion roller 4. The crushed plastic falls onto the sieve plate 14. Some fine plastics will fall directly from the sieve holes of the sieve plate 14, while some larger plastics will remain on the sieve plate 14. At this time, the output end of the servo motor 10 rotates to drive the screw rod 11 to rotate. The rotation of the screw rod 11 causes the scraper 12 to move back and forth left and right. The movement of the scraper 12 drives the push rod 13 to move. The push rod 13 contacts the baffle to open the box 1. At this time, the scraper 12 will scrape the plastic on the sieve plate 14 into the guide plate 15. The plastic enters the spiral conveying cylinder 16 through the guide plate 15, and is transported to the highest point and then enters the box 1 again. Through cyclic crushing, the plastic particles that originally could not pass through the sieve plate 14 can be reprocessed and reused, thereby improving the utilization rate of resources and reducing waste.

[0025] See also Figure 1-Figure 7On the basis of the above-mentioned embodiment, in another embodiment of the present invention, an auxiliary device for processing the plastic screened by the screen plate 14 and a cleaning device for cleaning the plastic are arranged inside the box body 1, and the auxiliary device comprises a vibration block 20 and a trapezoidal block 21. The vibration block 20 is fixedly mounted on the front side of the box body 1, and the trapezoidal block 21 is fixedly mounted on the top of the screen plate 14. In this way, the particles blocked on the screen holes can be forced to leave the screen surface and enter the upper layer of the material, thereby preventing the screen holes from being blocked, thereby improving the screening efficiency.

[0026] The auxiliary device also includes a fixed frame 22, a movable block 23 and a sealing plate 24. The fixed frame 22 is fixedly installed on the front side of the scraper 12, the movable block 23 is slidably installed on the circumferential surface of the fixed frame 22, and the sealing plate 24 is fixedly installed on the bottom of the screen plate 14. A No. 2 spring is arranged between the movable block 23 and the fixed frame 22, and the movable block 23 is reset by the arranged No. 2 spring. The right side of the movable block 23 is arranged as an inclined surface, so that the screen plate 14 moves downward.

[0027] The auxiliary device also includes a water inlet 25, a slide rod 26 and a water level rod 27. The water inlet 25 is fixedly installed on the inner wall of the box body 1, the slide rod 26 is fixedly installed on the circumferential surface of the water inlet 25, and the water level rod 27 is fixedly installed on the bottom of the inner wall of the box body 1, so as to control the water level inside the box body 1. The appropriate water level can ensure that the particles are fully soaked and cleaned, while avoiding the waste of water resources.

[0028] The auxiliary device also includes a floating plate 28 and a sealing block 29. The floating plate 28 is slidably installed on the circumferential surface of the water level rod 27, and the sealing block 29 is slidably installed on the circumferential surface of the slide rail rod 26. A No. 3 spring is arranged between the sealing block 29 and the slide rail rod 26, and the sealing block 29 is reset by the arranged No. 3 spring. A touch rod is arranged on the top of the floating plate 28, and an inclined block is arranged on the side of the sealing block 29 close to the touch rod. The movement of the sealing block 29 will block the water inlet 25.

[0029] The cleaning device includes a liquid storage tank 30, a nozzle 31 and a piston rod 32. The liquid storage tank 30 is fixedly installed on the right side of the box body 1, the nozzle 31 is fixedly installed on the inner wall of the box body 1, the liquid storage tank 30 is connected to the nozzle 31, one side of the piston rod 32 is fixedly installed on the bottom of the sealing plate 24, and the other side of the piston rod 32 is slidably installed on the inner wall of the liquid storage tank 30. The interior of the liquid storage tank 30 is provided with a cleaning agent. The automatic spraying of the cleaning agent can be used for cleaning during the crushing process. At the same time, the cleaning agent is added quantitatively to reduce the operating steps of the staff, thereby improving the overall production efficiency.

[0030] The cleaning device also includes a connecting rod 33, a driving plate 34, a mixing rod 35 and an output port 36. The connecting rod 33 is fixedly installed at the bottom of the sealing plate 24, the driving plate 34 is fixedly installed at the bottom of the connecting rod 33, the mixing rod 35 is rotatably installed on the inner wall of the driving plate 34, and a reciprocating spiral groove is provided on the circumferential surface of the mixing rod 35. The driving plate 34 is threadedly connected to the reciprocating spiral groove. The mixing rod 35 rotates to mix the detergent with the plastic and water, thereby improving the cleaning efficiency. The cleaned plastic is output through the output port 36.

[0031] When the present embodiment is working, the movement of the scraper 12 drives the fixed frame 22 to move, and the movement of the fixed frame 22 drives the movable block 23 to move. When the scraper 12 moves to the left, the bottom of the movable block 23 contacts the inclined surface of the trapezoidal block 21, so that the trapezoidal block 21 moves downward. The downward movement of the trapezoidal block 21 causes the sieve plate 14 to move downward. The movement of the sieve plate 14 drives the sealing plate 24 to move at the same time. The movement of the sieve plate 14 compresses the No. 1 spring, and when the sieve plate 14 is reset by the No. 1 spring, it contacts the vibration block 20 to generate vibration. In this way, the particles blocked on the sieve holes can be separated from the sieve surface and enter the upper layer of the material to prevent the sieve holes from being blocked, thereby improving the screening efficiency. When the scraper 12 moves to the right, the inclined surface of the movable block 23 contacts the right-angled surface of the trapezoidal block 21, thereby moving inward and moving at the same time. When the second spring is compressed, the movable block 23 moves inward, which enables the fixing frame 22 to enter the inner wall of the trapezoidal block 21, thereby preventing the sieve plate 14 from always moving downward when the fixing frame 22 moves, thereby preventing the scraper 12 from being able to scrape the plastic on the sieve plate 14, and the screened plastic enters the bottom of the box body 1. At this time, water is added to the water inlet 25, and the water level will gradually rise, causing the floating plate 28 to move upward along the water level rod 27. The floating plate 28 moves upward and drives the touch rod to move until it contacts the inclined block, at which time the inclined block moves to the left, and the movement of the inclined block drives the sealing block 29 to move along the slide rail rod 26. The movement of the sealing block 29 will block the water inlet 25, thereby controlling the water level inside the box body 1. The appropriate water level can ensure that the particles are fully soaked and cleaned, while avoiding the waste of water resources; The sealing plate 24 moves downward to drive the piston rod 32 to move. The movement of the piston rod 32 compresses the detergent inside the liquid storage tank 30 and sprays it out through the nozzle 31. The automatic spraying of the detergent can be used for cleaning during the crushing process. At the same time, the detergent is added quantitatively to reduce the operating steps of the staff, thereby improving the overall production efficiency. The sealing plate 24 moves downward to drive the connecting rod 33 to move. The movement of the connecting rod 33 drives the driving plate 34 to move downward. The driving plate 34 moves and contacts with the spiral groove to rotate the mixing rod 35. The rotation of the mixing rod 35 mixes the detergent with the plastic and water, thereby improving the cleaning efficiency. The cleaned plastic is output through the output port 36.

[0032] 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. A plastic pulverizing device with a cyclic pulverizing function, comprising a housing (1) and a spiral conveying cylinder (16), characterized in that: The spiral conveying cylinder (16) is arranged on the left and right sides of the box body (1), a driving box (2) is arranged on the front side of the box body (1), a chain belt plate (3) is rotatably mounted on the inner wall of the box body (1), and baffles are arranged on the left and right sides of the box body (1); a crushing device is also included; The crushing device comprises an extrusion roller (4), a grabbing rod (5), a splash plate (6), a servo motor 1 (7), a gear 1 (8), a special-shaped gear (9), a servo motor 2 (10), a screw rod (11), a scraper (12), a push rod (13), a screen plate (14), a guide plate (15) and a screw conveyor cylinder (16), wherein the extrusion roller (4) is fixedly mounted on the output end of the drive box (2), the grabbing rod (5) is fixedly mounted on the output end of the drive box (2), the splash plate (6) is rotatably mounted on the inner wall of the box body (1), the fixed end of the servo motor 1 (7) is fixedly mounted on the front side of the box body (1), and the gear 1 is fixedly mounted on the front side of the box body (1). (8) is fixedly mounted on the output end of the servo motor one (7), the special-shaped gear (9) is fixedly mounted on the front side of the splash plate (6), the fixed end of the servo motor two (10) is fixedly mounted on the right side of the box body (1), the screw rod (11) is fixedly mounted on the output end of the servo motor two (10), the scraper (12) is threadedly mounted on the circumferential surface of the screw rod (11), the push rod (13) is fixedly mounted on the right side of the scraper (12), the screen plate (14) is slidably mounted on the inner wall of the box body (1), the guide plate (15) is fixedly mounted on the left side of the box body (1), and the spiral conveying cylinder (16) is connected to the guide plate (15); Wherein, an auxiliary device for processing the plastic screened by the screen plate (14) and a cleaning device for cleaning the plastic are arranged inside the box (1).

2. The plastic crushing equipment with a cyclic crushing function according to claim 1 is characterized in that: A first torsion spring is provided between the splash plate (6) and the housing (1), the gear 1 (8) is meshed with the special-shaped gear (9), and a first spring is provided between the screen plate (14) and the housing (1).

3. The plastic crushing equipment with a cyclic crushing function according to claim 2 is characterized in that: The auxiliary device comprises a vibrating block (20) and a trapezoidal block (21), wherein the vibrating block (20) is fixedly mounted on the front side of the box body (1), and the trapezoidal block (21) is fixedly mounted on the top of the screen plate (14).

4. The plastic crushing equipment with a cyclic crushing function according to claim 3 is characterized in that: The auxiliary device further comprises a fixed frame (22), a movable block (23) and a sealing plate (24); the fixed frame (22) is fixedly mounted on the front side of the scraper (12); the movable block (23) is slidably mounted on the circumferential surface of the fixed frame (22); the sealing plate (24) is fixedly mounted on the bottom of the sieve plate (14); a No. 2 spring is arranged between the movable block (23) and the fixed frame (22); and the right side of the movable block (23) is arranged as an inclined surface.

5. The plastic crushing equipment with a cyclic crushing function according to claim 4 is characterized in that: The auxiliary device further comprises a water inlet (25), a slide rail rod (26) and a water level rod (27); the water inlet (25) is fixedly mounted on the inner wall of the box body (1); the slide rail rod (26) is fixedly mounted on the circumferential surface of the water inlet (25); and the water level rod (27) is fixedly mounted on the bottom of the inner wall of the box body (1).

6. The plastic crushing equipment with a cyclic crushing function according to claim 5, characterized in that: The auxiliary device further comprises a floating plate (28) and a sealing block (29); the floating plate (28) is slidably mounted on the circumferential surface of the water level rod (27); the sealing block (29) is slidably mounted on the circumferential surface of the slide rail rod (26); a third spring is arranged between the sealing block (29) and the slide rail rod (26); a touch rod is arranged on the top of the floating plate (28); and an inclined block is arranged on a side of the sealing block (29) close to the touch rod.

7. The plastic crushing equipment with a cyclic crushing function according to claim 6, characterized in that: The cleaning device comprises a liquid storage tank (30), a spray head (31) and a piston rod (32); the liquid storage tank (30) is fixedly mounted on the right side of the box body (1); the spray head (31) is fixedly mounted on the inner wall of the box body (1); the liquid storage tank (30) is communicated with the spray head (31); one side of the piston rod (32) is fixedly mounted on the bottom of the sealing plate (24); the other side of the piston rod (32) is slidably mounted on the inner wall of the liquid storage tank (30); and a cleaning agent is provided inside the liquid storage tank (30).

8. The plastic crushing equipment with a cyclic crushing function according to claim 7, characterized in that: The cleaning device further comprises a connecting rod (33), a driving plate (34), a mixing rod (35) and an output port (36); the connecting rod (33) is fixedly mounted on the bottom of the sealing plate (24); the driving plate (34) is fixedly mounted on the bottom of the connecting rod (33); the mixing rod (35) is rotatably mounted on the inner wall of the driving plate (34); a reciprocating spiral groove is formed on the circumferential surface of the mixing rod (35); and the driving plate (34) is threadedly connected to the reciprocating spiral groove.

9. A method for using a plastic crushing device with a cyclic crushing function, using the plastic crushing device with a cyclic crushing function according to claim 8, characterized in that: The following steps are involved: Step 1: Add plastic to the input port of the box (1), and use the driving box (2) to make the two squeezing rollers (4) rotate relative to each other, and at the same time make the grabbing rod (5) rotate, so that the squeezing rollers (4) crush the plastic, and the grabbing rod (5) increases the contact area with the material; Step 2: The chain belt plate (3) is adjusted to prevent the squeezing roller (4) from squeezing the plastic and causing splashing. The output end of the servo motor (7) is rotated to drive the gear (8) to rotate. The rotation of the gear (8) causes the special-shaped gear (9) to rotate. The rotation of the special-shaped gear (9) causes the splash plate (6) to rotate. The splash plate (6) rotates back and forth to block the splashing plastic and make it fall to the squeezing roller (4). Step 3: The crushed plastic falls onto the sieve plate (14). Some fine plastic will fall directly from the sieve holes of the sieve plate (14), while some larger plastic will remain on the sieve plate (14). At this time, the scraper (12) moves back and forth left and right to scrape the plastic on the sieve plate (14) onto the guide plate (15). The plastic passes through the guide plate (15) and enters the spiral conveyor cylinder (16). After being conveyed to the highest point, it enters the box (1) again for cyclic crushing.

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