A special crusher for plastic recycling

Abstract

The present invention relates to the field of plastic recycling, and in particular to a special pulverizer for plastic recycling, comprising a pulverizing box, and a placement component and a quick-freezing component installed inside the pulverizing box, a top plate fixedly installed inside the top of the pulverizing box, a driving component arranged on the top of the top plate, a plurality of arc-shaped slot seats fixedly installed on the bottom of the top plate, a convergence frame fixedly installed inside the pulverizing box, two pulverizing rollers rotatably installed inside the pulverizing box, a transmission box installed at one end of the two pulverizing rollers, and a drive motor 2 fixedly installed at the end of the transmission box away from the pulverizing rollers. The present invention can open the release plate at the bottom of the placement frame to release the soft glue after quick freezing, and the soft glue enters between the two pulverizing rollers after being guided by the convergence frame, and is pulverized by the two rotating pulverizing rollers. The soft glue after quick freezing has a certain brittleness, and the pulverizing effect is better, and it will not be entangled and bonded to the surface of the pulverizing roller, thereby ensuring the pulverizing effect and improving the pulverizing efficiency.

Description

Technical Field

[0001] The invention relates to the field of plastic recycling, in particular to a special pulverizer for plastic recycling. Background Art

[0002] Plastics are polymer compounds made from monomers through addition polymerization or condensation polymerization. They have a medium deformation resistance, between fiber and rubber. They are composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. Waste plastics are a general term for plastics that have been used and eventually eliminated or replaced in civil and industrial applications, often causing large-scale pollution. Therefore, they need to be crushed and recycled. In the process of recycling, plastics need to be crushed using a crusher.

[0003] There are a lot of soft glue, that is, flexible plastic, in waste plastics. It is formed by plastic injection molding and feels soft at room temperature. When existing crushers crush soft glue waste, due to its soft texture, it is easy to stick to the surface of the crushing roller, increasing the operating load of the crushing roller and reducing the overall service life of the crusher. In addition, due to its soft texture, the crushing roller will deform when crushing the soft glue, resulting in poor crushing effect. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a special crusher for plastic recycling.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A special pulverizer for plastic recycling comprises a pulverizing box, and a placement component and a quick-freezing component installed inside the pulverizing box, a top plate is fixedly installed inside the top of the pulverizing box, a driving component is arranged on the top of the top plate, a plurality of arc-shaped slot seats are fixedly installed on the bottom of the top plate, a convergence frame is fixedly installed inside the pulverizing box, two pulverizing rollers are rotatably installed inside the pulverizing box, a transmission box is installed at one end of the two pulverizing rollers, a driving motor 2 is fixedly installed at the end of the transmission box away from the pulverizing roller, a partition is fixedly installed inside the pulverizing box, and a fixing rod is fixedly installed at the bottom of the partition.

[0007] The driving assembly includes a cover, a driven gear 2 is rotatably mounted on the top of the cover, a connecting plug 2 is fixedly mounted on the bottom of the driven gear 2, a driving gear is mounted on the top of the cover, an ear plate is fixedly mounted on the outer side of the cover, a driven gear 1 is rotatably mounted on the top of the ear plate, a connecting socket 1 is provided at the bottom of the driven gear 1, a protective shell is fixedly mounted on the top of the cover, and a driving motor 1 is fixedly mounted on the top of the protective shell.

[0008] The placement component includes a placement frame, a connecting rod is fixedly installed at the bottom of the inner cavity of the placement frame, placement grooves are opened inside the two sides of the connecting rod, rotating rods are rotatably installed inside the placement grooves, release plates are fixedly installed on the outer sides of the rotating rods, opening and closing components are installed on the opposite sides of the rotating rods, a rotating cylinder is fixedly installed on the top of the connecting rod, a connecting head is fixedly installed on the top of the rotating cylinder, a second connecting socket is opened on the top of the connecting head, and a torsion spring is sleeved on the outer sides of the rotating rods.

[0009] The quick freezing assembly includes a liquid spray ring, the inner side of the liquid spray ring is connected to multiple liquid nitrogen nozzles 2, the top of the liquid spray ring is connected to multiple delivery pipes, the ends of the multiple delivery pipes away from the liquid spray ring are connected to a liquid nitrogen nozzle 1, three sliding hole blocks are fixedly installed on the outer side of the liquid spray ring, and a limiting sliding rod 1 is slidably installed inside the three sliding hole blocks, a threaded hole block is fixedly installed on the outer side of the liquid spray ring, the internal thread of the threaded hole block is threadedly connected to a threaded rod 1, and a connecting column 1 is fixedly installed on the top of the threaded rod 1, and one side of the liquid spray ring is connected to a liquid nitrogen access telescopic tube.

[0010] In the above-mentioned special pulverizer for plastic recycling, the spray ring is located on the outside of the placement frame, the output end of the driving motor 1 is fixedly connected to the top of the driving gear, the driving gear is respectively meshed with the driven gear 1 and the driven gear 2, the two ends of the threaded rod 1 are respectively rotatably installed inside the top plate and the partition, the two ends of the limiting slide rod 1 are respectively fixedly connected to the top plate and the partition, the specification size of the inner diameter of the connecting socket 1 is consistent with the specification size of the outer diameter of the connecting column 1, the specification size of the outer diameter of the connecting column 2 is consistent with the specification size of the inner diameter of the connecting socket 2, the inside of the arc groove seat is opened with a 90-degree arc groove, and the conveying pipe is movably installed inside the arc groove inside the arc groove seat.

[0011] In the above-mentioned special pulverizer for plastic recycling, the protective shell is located on the outside of the driven gear 1, the driving gear and the driven gear 2, a plurality of air holes are opened inside the cover, and two handles are symmetrically fixedly installed on the top of the cover.

[0012] In the above-mentioned special pulverizer for plastic recycling, two mutually meshing transmission gears are rotatably installed inside the transmission box, and the output end of the second driving motor is fixedly connected to one of the transmission gears, and one end of the two pulverizing rollers is fixedly connected to the two transmission gears respectively.

[0013] In the above-mentioned special pulverizer for plastic recycling, one end of the torsion spring is fixedly connected to the outer side of the rotating rod, and the other end of the torsion spring is fixedly connected to the inner wall of the placement groove.

[0014] In the above-mentioned special pulverizer for plastic recycling, the opening and closing component includes a moving block and a threaded rod 2, both sides of the bottom of the moving block are fixedly connected with connecting ropes, the end of the connecting rope away from the moving block is fixedly connected with a winding column, the top of the threaded rod 2 is fixedly installed with a driven gear 3, the outer side of the driven gear 3 is meshed with an internal gear ring, the outer side of the threaded rod 2 is threadedly connected with an inner magnet sleeve, the top of the fixed rod is fixedly connected with a support column, and the top of the support column is fixedly installed with a limiting slide rod 2.

[0015] In the above-mentioned special pulverizer for plastic recycling, the two reels are fixedly connected to the opposite sides of the two rotating rods respectively, the inner gear ring is fixedly installed on the top of the inner cavity of the rotating cylinder, the movable block is movably installed on the outside of the second threaded rod and the second limiting slide rod, and the inner magnet sleeve is movably sleeved on the outside of the second limiting slide rod.

[0016] In the above-mentioned special crusher for plastic recycling, slide grooves are opened on both sides of the inner cavity of the rotating cylinder, and limiting slide bars three are fixedly installed inside the slide grooves, and springs are sleeved on the outer sides of the limiting slide bars three. Sliding blocks are symmetrically fixedly installed on the outer sides of the moving blocks, and the two sliding blocks are respectively slidably installed on the inner sides of the two slide grooves, and the two sliding blocks are respectively slidably sleeved on the outer sides of the two limiting slide bars three, the top of the spring is fixedly connected to the bottom of the sliding block, and the bottom of the spring is fixedly connected to the bottom of the inner cavity of the slide groove.

[0017] In the above-mentioned special pulverizer for plastic recycling, an outer magnet sleeve is movably installed on the outer side of the rotating cylinder, a toggle protrusion is fixedly installed on the outer side of the outer magnet sleeve, and the magnetic poles inside the outer magnet sleeve are opposite to the magnetic poles outside the inner magnet sleeve.

[0018] In the above-mentioned special pulverizer for plastic recycling, a collecting frame is movably installed at the bottom of the inner cavity of the pulverizing box.

[0019] Compared with the existing technology, the advantages of this special pulverizer for plastic recycling are:

[0020] 1. Liquid nitrogen can be connected to the telescopic tube to connect to the external liquid nitrogen supply equipment. The liquid nitrogen will enter the interior of the liquid spray ring, and then be sprayed to the surface of the soft glue placed inside the placement frame through the liquid nitrogen nozzle 2. The liquid nitrogen will quickly vaporize at room temperature, absorb heat, and cooperate with the temperature of the liquid nitrogen itself to freeze the soft glue, thereby increasing the brittleness of the soft glue. When the liquid spray ring moves upward, it can push the conveying pipe to move upward, and through the arc groove inside the arc groove seat, the liquid nitrogen nozzle 1 moves horizontally, thereby spraying liquid nitrogen from the top to the soft glue placed inside the placement frame, thereby improving the spraying effect on the soft glue and the quick freezing effect;

[0021] 2. The release plate at the bottom of the placement frame can be opened to release the frozen soft glue. The soft glue is guided by the convergence frame and enters between the two crushing rollers, and is crushed by the two rotating crushing rollers. The soft glue after quick freezing has a certain brittleness, and the crushing effect is better, and it will not be entangled and adhered to the surface of the crushing roller, ensuring the crushing effect and improving the crushing efficiency;

[0022] 3. When the rotating drum rotates, it can drive the inner gear ring to rotate, thereby driving the driven gear three to rotate, so that the threaded rod two can rotate. Under the limit of the limit slide rod two, the inner magnet sleeve can be moved on the outside of the threaded rod two and the limit slide rod two, so that the top of the inner magnet sleeve is in contact with the bottom of the moving block, and the moving block is pushed to move upward, so that the winding column is rotated by pulling the connecting rope, and the rotating rod drives the release plate to rotate, so as to open the bottom of the placement frame and release the soft glue after quick freezing. It is not only convenient to release, but also can be released at a fixed time, which can ensure the quick freezing time of the soft glue inside the placement frame, ensure the quick freezing effect, and save liquid nitrogen resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of a special pulverizer for plastic recycling proposed by the present invention;

[0024] Figure 2 A schematic diagram of a side-view stereoscopic structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the crushing box proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the crushing box proposed by the present invention, viewed from top and in cross section;

[0027] Figure 5 This is a bottom-up three-dimensional structural schematic diagram of the cover proposed by the present invention;

[0028] Figure 6 This is a schematic diagram of the quick freezing assembly structure proposed by the present invention;

[0029] Figure 7 This is a schematic diagram of the bottom-up structure of the placement frame proposed by the present invention;

[0030] Figure 8 It is a schematic diagram of a partially cutaway three-dimensional structure proposed by the present invention;

[0031] Fig. 9 The present invention proposes Figure 8 The enlarged structural diagram at A in the middle;

[0032] Fig.10 The present invention proposes Figure 8 The enlarged structural diagram at B in the middle;

[0033] Fig.11 The present invention proposes Figure 8 Enlarged structural diagram at point C in the middle.

[0034] In the figure: 1. crushing box; 2. sealing cover; 3. vent hole; 4. protective shell; 5. driving motor 1; 6. handle; 7. top plate; 8. collection frame; 9. transmission box; 10. driving motor 2; 11. liquid nitrogen access telescopic tube; 12. driven gear 1; 13. driving gear; 14. driven gear 2; 15. convergence frame; 16. crushing roller; 17. sliding hole block; 18. limit sliding rod 1; 19. placement frame; 20. spray ring; 21. threaded rod 1; 22. connecting rod; 23. placement slot; 24. ear plate; 25. connecting socket 1; 26. connecting pin 2; 27. release plate; 28. fixing rod ; 29. ​​Partition; 30. Arc groove seat; 31. Delivery pipe; 32. Rotating cylinder; 33. Connecting rope; 34. Pushing cam; 35. Liquid nitrogen nozzle one; 36. Connecting plug one; 37. Liquid nitrogen nozzle two; 38. Threaded hole block; 39. Support column; 40. Inner magnet sleeve; 41. Threaded rod two; 42. Limiting slide rod two; 43. Outer magnet sleeve; 44. Rotating rod; 45. Torsion spring; 46. Reel; 47. Slide; 48. Limiting slide rod three; 49. Moving block; 50. Spring; 51. Sliding block; 52. Inner gear ring; 53. Driven gear three; 54. Connector; 55. Connecting socket two. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Reference Figure 1-Figure 11A special pulverizer for plastic recycling comprises a pulverizing box 1, and a placing component and a quick-freezing component installed inside the pulverizing box 1. A top plate 7 is fixedly installed inside the top of the pulverizing box 1, a driving component is arranged on the top of the top plate 7, a plurality of arc-shaped slot seats 30 are fixedly installed on the bottom of the top plate 7, a convergence frame 15 is fixedly installed inside the pulverizing box 1, two pulverizing rollers 16 are rotatably installed inside the pulverizing box 1, a transmission box 9 is installed at one end of the two pulverizing rollers 16, a driving motor 2 10 is fixedly installed at one end of the transmission box 9 away from the pulverizing rollers 16, a partition 29 is fixedly installed inside the pulverizing box 1, a fixing rod 28 is fixedly installed at the bottom of the partition 29, two mutually meshing transmission gears are rotatably installed inside the transmission box 9, and the output end of the driving motor 2 10 is fixedly connected to one of the transmission gears, and one end of the two pulverizing rollers 16 is respectively fixedly connected to the inside of the two transmission gears.

[0038] The driving assembly includes a cover 2, a driven gear 14 is rotatably mounted on the top of the cover 2, a connecting plug 26 is fixedly mounted on the bottom of the driven gear 14, a driving gear 13 is mounted on the top of the cover 2, an ear plate 24 is fixedly mounted on the outside of the cover 2, a driven gear 12 is rotatably mounted on the top of the ear plate 24, a connecting socket 25 is provided at the bottom of the driven gear 12, a protective shell 4 is fixedly mounted on the top of the cover 2, a driving motor 5 is fixedly mounted on the top of the protective shell 4, the protective shell 4 is located on the outside of the driven gear 12, the driving gear 13 and the driven gear 14, a plurality of air holes 3 are provided inside the cover 2, and two handles 6 are symmetrically fixedly mounted on the top of the cover 2.

[0039] The placement component includes a placement frame 19, a connecting rod 22 is fixedly installed at the bottom of the inner cavity of the placement frame 19, placement grooves 23 are opened inside on both sides of the connecting rod 22, a rotating rod 44 is rotatably installed inside the placement grooves 23, a release plate 27 is fixedly installed on the outer side of the rotating rod 44, an opening and closing component is installed on the opposite side of the rotating rod 44, a rotating cylinder 32 is fixedly installed on the top of the connecting rod 22, a connecting head 54 is fixedly installed on the top of the rotating cylinder 32, a connecting socket 2 55 is opened on the top of the connecting head 54, a torsion spring 45 is sleeved on the outer side of the rotating rod 44, one end of the torsion spring 45 is fixedly connected to the outer side of the rotating rod 44, and the other end of the torsion spring 45 is fixedly connected to the inner wall of the placement groove 23.

[0040] The quick freezing assembly includes a liquid spray ring 20, the inner side of the liquid spray ring 20 is connected to a plurality of liquid nitrogen nozzles 237, the top of the liquid spray ring 20 is connected to a plurality of delivery pipes 31, and the ends of the plurality of delivery pipes 31 away from the liquid spray ring 20 are all connected to a liquid nitrogen nozzle 135, the outer side of the liquid spray ring 20 is fixedly installed with three sliding hole blocks 17, and the interiors of the three sliding hole blocks 17 are all slidably installed with a limited sliding rod 18, the outer side of the liquid spray ring 20 is fixedly installed with a threaded hole block 38, the inner part of the threaded hole block 38 is threadedly connected with a threaded rod 121, and the top of the threaded rod 21 is fixedly installed with a connecting plug 136, one side of the liquid spray ring 20 is connected to a liquid nitrogen access telescopic pipe 11, and the liquid spray ring 20 is located in the placement frame 19 The output end of the driving motor 15 is fixedly connected to the top of the driving gear 13, and the driving gear 13 is meshed with the driven gear 12 and the driven gear 2 14 respectively. The two ends of the threaded rod 21 are rotatably mounted on the inside of the top plate 7 and the partition 29 respectively. The two ends of the limiting slide bar 18 are fixedly connected to the top plate 7 and the partition 29 respectively. The specification size of the inner diameter of the connecting socket 1 25 is consistent with the specification size of the outer diameter of the connecting column 1 36, and the specification size of the outer diameter of the connecting column 26 is consistent with the specification size of the inner diameter of the connecting socket 2 55. A 90-degree arc groove is opened inside the arc groove seat 30, and the conveying pipe 31 is movably mounted inside the arc groove inside the arc groove seat 30.

[0041] Among them, the soft glue that needs to be crushed can be placed inside the placement frame 19, and then the cover 2 is installed on the top of the top plate 7 and the connecting pin 36 at the top of the threaded rod 21 is inserted into the connecting socket 25 at the bottom of the ear plate 24. After the driving motor 5 is started, the driven gear 13 can be used to drive the driven gear 12 to rotate, thereby driving the threaded rod 21 to rotate, and under the limitation of the limiting slide rod 18 and the sliding hole block 17, the liquid injection ring 20 can be moved on the outside of the threaded rod 21 through the threaded hole block 38. At this time, the liquid nitrogen supply device can be connected to the telescopic tube 11 through liquid nitrogen, and the liquid nitrogen will enter The inside of the liquid spray ring 20 is then sprayed onto the surface of the soft glue placed inside the placement frame 19 through the liquid nitrogen nozzle 2. The liquid nitrogen will quickly vaporize at room temperature, absorb heat, and cooperate with the temperature of the liquid nitrogen itself to quickly freeze the soft glue, thereby increasing the brittleness of the soft glue. When the liquid spray ring 20 moves upward, it can push the conveying pipe 31 to move upward, and through the arc groove inside the arc groove seat 30, the liquid nitrogen nozzle 1 35 moves horizontally, thereby spraying liquid nitrogen from the top to the soft glue placed inside the placement frame 19, thereby improving the spraying effect on the soft glue and the quick freezing effect. When resetting, you only need to start the drive motor 15 to reverse.

[0042] Among them, when the cover 2 is installed on the top of the top plate 7, the connecting column 26 at the bottom of the driven gear 14 can be inserted into the inside of the connecting hole 55 inside the connecting head 54. After the driving motor 5 is started, the driven gear 13 can be used to drive the driven gear 14 to rotate, so that the rotating cylinder 32 can be rotated, and the placement frame 19 can be driven to rotate through the connecting rod 22, thereby further improving the liquid nitrogen spraying effect on the soft glue placed inside the placement frame 19, thereby improving the quick freezing effect.

[0043] Among them, the release plate 27 at the bottom of the placement frame 19 can be opened to release the soft glue after quick freezing. The soft glue is guided by the convergence frame 15 and enters between the two crushing rollers 16, and is crushed by the two rotating crushing rollers 16. The soft glue after quick freezing has a certain brittleness, and the crushing effect is better, and it will not be entangled and adhered to the surface of the crushing roller 16, thereby ensuring the crushing effect and improving the crushing efficiency.

[0044] The opening and closing assembly includes a moving block 49 and a threaded rod 2 41. Both sides of the bottom of the moving block 49 are fixedly connected with a connecting rope 33. The end of the connecting rope 33 away from the moving block 49 is fixedly connected with a reel 46. A driven gear 3 53 is fixedly installed on the top of the threaded rod 21. The outer side of the driven gear 3 53 is meshed with an inner gear ring 52. The outer side of the threaded rod 21 is threadedly connected with an inner magnet sleeve 40. The top of the fixed rod 28 is fixedly connected with a supporting column 39. The top of the supporting column 39 is fixedly installed with a limited sliding rod 2 42. The two reels 46 are respectively fixedly connected to the opposite sides of the two rotating rods 44. The inner gear ring 52 is fixedly installed on the top of the inner cavity of the rotating cylinder 32. The moving block 49 is movable. The inner magnet sleeve 40 is movably mounted on the outer side of the threaded rod 2 41 and the limit slide rod 2 42, and the inner magnet sleeve 40 is movably sleeved on the outer side of the limit slide rod 2 42. Slide grooves 47 are provided on both sides of the inner cavity of the rotating cylinder 32. The inner side of the slide grooves 47 is fixedly mounted with a limit slide rod 3 48, and the outer side of the limit slide rod 3 48 is sleeved with a spring 50. The outer side of the moving block 49 is symmetrically fixedly mounted with sliding blocks 51. The two sliding blocks 51 are respectively slidably mounted on the inner sides of the two slide grooves 47, and the two sliding blocks 51 are respectively slidably sleeved on the outer sides of the two limit slide rods 3 48. The top of the spring 50 is fixedly connected to the bottom of the sliding block 51, and the bottom of the spring 50 is fixedly connected to the bottom of the inner cavity of the slide groove 47.

[0045] When the rotating cylinder 32 rotates, the inner gear ring 52 can be driven to rotate, thereby driving the driven gear three 53 to rotate, so that the threaded rod two 41 is rotated. Under the limit of the limit slide bar two 42, the inner magnet sleeve 40 can be moved outside the threaded rod two 41 and the limit slide bar two 42, and finally the top of the inner magnet sleeve 40 is in contact with the bottom of the moving block 49, and the moving block 49 is pushed to move upward, so that the winding column 46 is pulled to rotate through the connecting rope 33, and the rotating rod 44 drives the release plate 27 to rotate, so as to open the bottom of the placement frame 19. The soft glue after quick freezing is released, which is not only convenient to release but also can be released at a fixed time, so as to ensure the quick freezing time of the soft glue inside the placement frame 19, ensure the quick freezing effect, and save liquid nitrogen resources. In addition, when resetting, it is only necessary to start the driving motor 5 to reverse, so that the inner magnet sleeve 40 moves downward, and the moving block 49 moves downward under the action of the tension of the spring 50. At this time, the torsion spring 45 recovers its deformation, driving the rotating rod 44 to rotate, thereby driving the release plate 27 to rotate, so as to achieve the blocking of the bottom of the placement frame 19, which is convenient for placing the next batch of soft glue.

[0046] An outer magnet sleeve 43 is movably mounted on the outer side of the rotating cylinder 32 , and a toggle protrusion 34 is fixedly mounted on the outer side of the outer magnet sleeve 43 . The magnetic poles on the inner side of the outer magnet sleeve 43 are opposite to the magnetic poles on the outer side of the inner magnet sleeve 40 .

[0047] When the inner magnet sleeve 40 moves upward, the outer magnet sleeve 43 can be driven by magnetic force to move on the outside of the rotating cylinder 32, thereby driving the moving protruding rod 34 to move vertically, thereby moving the soft glue placed inside the placement frame 19, making it easier for the liquid nitrogen to contact the soft glue inside the placement frame 19, thereby improving the quick freezing effect.

[0048] A collecting frame 8 is movably mounted at the bottom of the inner cavity of the crushing box 1 .

[0049] The soft glue crushed by the crushing roller 16 will fall into the collecting frame 8 for easy collection.

[0050] The specific working principle and method of use of the present invention are explained in detail below: the soft glue to be crushed can be placed inside the placement frame 19, and then the cover 2 can be installed on the top of the top plate 7 and the connecting pin 36 at the top of the threaded rod 21 can be inserted into the connecting socket 25 at the bottom of the ear plate 24. After the drive motor 5 is started, the driven gear 12 can be driven to rotate through the active gear 13, thereby driving the threaded rod 21 to rotate, and under the limitation of the limiting slide rod 18 and the sliding hole block 17, the liquid spray ring 20 can be moved on the outside of the threaded rod 21 through the threaded hole block 38. At this time, the liquid nitrogen supply equipment can be connected to the telescopic tube 11 through the liquid nitrogen, and the liquid nitrogen will enter the interior of the liquid spray ring 20, and then pass through the liquid nitrogen nozzle two 37 is sprayed onto the surface of the soft glue placed inside the placement frame 19. Liquid nitrogen will quickly vaporize at room temperature, absorb heat, and cooperate with the temperature of the liquid nitrogen itself to quickly freeze the soft glue, thereby increasing the brittleness of the soft glue. When the liquid spray ring 20 moves upward, it can push the conveying pipe 31 to move upward, and through the arc groove inside the arc groove seat 30, the liquid nitrogen nozzle 35 moves horizontally, thereby spraying liquid nitrogen from the top to the soft glue placed inside the placement frame 19, thereby improving the spraying effect on the soft glue and the quick freezing effect. In addition, when the cover 2 is installed on the top of the top plate 7, the connecting plug 26 at the bottom of the driven gear 14 can be plugged into the inside of the connecting socket 2 55 inside the connecting head 54. After the driving motor 5 is started, the driving gear 1 can be driven to move upward. The wheel 13 drives the driven gear 14 to rotate, thereby rotating the rotating cylinder 32, thereby driving the placement frame 19 to rotate through the connecting rod 22, and further improving the liquid nitrogen spraying effect on the soft glue placed inside the placement frame 19, and improving the quick freezing effect. When the rotating cylinder 32 rotates, it can drive the inner gear ring 52 to rotate, thereby driving the driven gear 3 53 to rotate, so that the threaded rod 41 is rotated. Under the limitation of the limiting slide bar 42, the inner magnet sleeve 40 can be moved on the outside of the threaded rod 41 and the limiting slide bar 42, and finally the top of the inner magnet sleeve 40 contacts the bottom of the moving block 49, and pushes the moving block 49 to move upward, thereby pulling the winding column 46 to rotate through the connecting rope 33, prompting the rotating rod 44 drives the release plate 27 to rotate, thereby opening the bottom of the placement frame 19 and releasing the soft glue after quick freezing. The soft glue is guided by the convergence frame 15 and enters between the two crushing rollers 16, and is crushed by the two rotating crushing rollers 16. The soft glue after quick freezing has a certain brittleness, and the crushing effect is better, and it will not be entangled and adhered to the surface of the crushing roller 16, ensuring the crushing effect and improving the crushing efficiency. It is not only convenient to release, but also can be released at a fixed time, which can ensure that the quick freezing time of the soft glue inside the placement frame 19 is fixed, ensuring the quick freezing effect and saving liquid nitrogen resources. In addition, when resetting, it is only necessary to start the drive motor 5 to reverse, so that the inner magnet sleeve 40 moves downward, and the moving block 49 moves downward under the action of the pulling force of the spring 50.At this time, the torsion spring 45 recovers its deformation, driving the rotating rod 44 to rotate, thereby driving the release plate 27 to rotate, so as to seal the bottom of the placement frame 19, which is convenient for placing the next batch of soft glue. When resetting, it is only necessary to start the reverse rotation of the drive motor 5, and the soft glue crushed by the crushing roller 16 will fall into the inside of the collection frame 8, which is convenient for collection.

[0051] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special pulverizer for plastic recycling, comprising a pulverizing box (1), and a placement component and a quick freezing component installed inside the pulverizing box (1), characterized in that: A top plate (7) is fixedly mounted inside the top of the pulverizing box (1), a driving assembly is arranged on the top of the top plate (7), a plurality of arc-shaped slot seats (30) are fixedly mounted on the bottom of the top plate (7), a convergence frame (15) is fixedly mounted inside the pulverizing box (1), two pulverizing rollers (16) are rotatably mounted inside the pulverizing box (1), a transmission box (9) is mounted at one end of the two pulverizing rollers (16), a drive motor 2 (10) is fixedly mounted at one end of the transmission box (9) away from the pulverizing rollers (16), a partition plate (29) is fixedly mounted inside the pulverizing box (1), and a fixing rod (28) is fixedly mounted at the bottom of the partition plate (29); The driving assembly comprises a cover (2), a driven gear 2 (14) is rotatably mounted on the top of the cover (2), a connecting plug 2 (26) is fixedly mounted on the bottom of the driven gear 2 (14), a driving gear (13) is mounted on the top of the cover (2), an ear plate (24) is fixedly mounted on the outer side of the cover (2), a driven gear 1 (12) is rotatably mounted on the top of the ear plate (24), a connecting socket 1 (25) is provided at the bottom of the driven gear 1 (12), a protective shell (4) is fixedly mounted on the top of the cover (2), and a driving motor 1 (5) is fixedly mounted on the top of the protective shell (4); The placement assembly comprises a placement frame (19), a connecting rod (22) is fixedly installed at the bottom of the inner cavity of the placement frame (19), placement grooves (23) are provided inside both sides of the connecting rod (22), a rotating rod (44) is rotatably installed inside the placement groove (23), a release plate (27) is fixedly installed on the outer side of the rotating rod (44), an opening and closing assembly is installed on the opposite side of the rotating rod (44), a rotating cylinder (32) is fixedly installed on the top of the connecting rod (22), a connecting head (54) is fixedly installed on the top of the rotating cylinder (32), a second connecting socket (55) is provided on the top of the connecting head (54), and a torsion spring (45) is sleeved on the outer side of the rotating rod (44); The quick freezing assembly comprises a liquid spray ring (20), the inner side of the liquid spray ring (20) is connected to a plurality of liquid nitrogen spray heads (2) (37), the top of the liquid spray ring (20) is connected to a plurality of delivery pipes (31), the ends of the plurality of delivery pipes (31) away from the liquid spray ring (20) are all connected to a liquid nitrogen spray head (35), the outer side of the liquid spray ring (20) is fixedly mounted with three sliding hole blocks (17), the interiors of the three sliding hole blocks (17) are all slidably mounted with a limit sliding rod (18), the outer side of the liquid spray ring (20) is fixedly mounted with a threaded hole block (38), the interior of the threaded hole block (38) is threadedly connected with a threaded rod (21), the top of the threaded rod (21) is fixedly mounted with a connecting plug column (36), and one side of the liquid spray ring (20) is connected to a liquid nitrogen access telescopic tube (11); The liquid spray ring (20) is located outside the placement frame (19), the output end of the driving motor 1 (5) is fixedly connected to the top of the driving gear (13), the driving gear (13) is meshed with the driven gear 1 (12) and the driven gear 2 (14), the two ends of the threaded rod 1 (21) are rotatably mounted inside the top plate (7) and the partition (29), the two ends of the limit slide rod 1 (18) are fixedly connected to the top plate (7) and the partition (29), the specification size of the inner diameter of the connecting hole 1 (25) is consistent with the specification size of the outer diameter of the connecting column 1 (36), the specification size of the outer diameter of the connecting column 2 (26) is consistent with the specification size of the inner diameter of the connecting hole 2 (55), the inside of the arc groove seat (30) is provided with a 90-degree arc groove, and the delivery pipe (31) is movably mounted inside the arc groove inside the arc groove seat (30); The protective shell (4) is located outside the driven gear 1 (12), the driving gear (13) and the driven gear 2 (14); a plurality of air holes (3) are provided inside the cover (2); and two handles (6) are symmetrically fixedly mounted on the top of the cover (2); The transmission box (9) is internally rotatably mounted with two mutually meshing transmission gears, and the output end of the second drive motor (10) is fixedly connected to one of the transmission gears, and one end of the two crushing rollers (16) is respectively fixedly connected to the inside of the two transmission gears; One end of the torsion spring (45) is fixedly connected to the outer side of the rotating rod (44), and the other end of the torsion spring (45) is fixedly connected to the inner wall of the placement groove (23); The opening and closing assembly comprises a moving block (49) and a second threaded rod (41), both sides of the bottom of the moving block (49) are fixedly connected with a connecting rope (33), one end of the connecting rope (33) away from the moving block (49) is fixedly connected with a winding column (46), a third driven gear (53) is fixedly installed on the top of the second threaded rod (41), an inner gear ring (52) is meshed on the outer side of the third driven gear (53), an inner magnet sleeve (40) is threadedly connected on the outer side of the second threaded rod (41), a supporting column (39) is fixedly connected to the top of the fixed rod (28), and a second limit slide rod (42) is fixedly installed on the top of the supporting column (39); The two reel posts (46) are respectively fixedly connected to opposite sides of the two rotating rods (44); the inner gear ring (52) is fixedly mounted on the top of the inner cavity of the rotating cylinder (32); the moving block (49) is movably mounted on the outer sides of the second threaded rod (41) and the second limiting slide rod (42); and the inner magnet sleeve (40) is movably sleeved on the outer side of the second limiting slide rod (42); Slide grooves (47) are provided on both sides of the inner cavity of the rotating cylinder (32), and the inner parts of the slide grooves (47) are fixedly installed with limit slide bars (48), and the outer sides of the limit slide bars (48) are sleeved with springs (50), and the outer sides of the moving blocks (49) are symmetrically fixedly installed with sliding blocks (51), and the two sliding blocks (51) are respectively slidably installed on the inner sides of the two slide grooves (47), and the two sliding blocks (51) are respectively slidably sleeved on the outer sides of the two limit slide bars (48), and the top of the spring (50) is fixedly connected to the bottom of the sliding block (51), and the bottom of the spring (50) is fixedly connected to the bottom of the inner cavity of the slide groove (47); An outer magnet sleeve (43) is movably mounted on the outer side of the rotating cylinder (32), a toggle convex rod (34) is fixedly mounted on the outer side of the outer magnet sleeve (43), and the magnetic poles on the inner side of the outer magnet sleeve (43) are opposite to the magnetic poles on the outer side of the inner magnet sleeve (40); A collecting frame (8) is movably mounted at the bottom of the inner cavity of the crushing box (1).

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