Pretreatment and recovery device for plastic products

Abstract

The invention relates to the technical field of plastic product recycling, and discloses a plastic product pretreatment recycling device which comprises a crushing box, a feeding bin arranged at the top of the crushing box, a discharging bin arranged on one side of the bottom of the crushing box, an inclined baffle arranged on the inner side of the crushing box and a circulating crushing unit arranged in the crushing box. And the circulating crushing unit comprises a crushing part arranged in a crushing box. According to the plastic product pretreatment and recovery device, a first connecting shaft rotates, a rotating shaft is driven to rotate, a side plate is driven to rotate, an extrusion plate is driven to rotate, an inclined baffle enables plastic bottles to fall onto a smashing roller, the extrusion plate slides on the outer side of a first cam when rotating, and the extrusion plate moves downwards under the action of the first cam; and the extrusion rods slide on the inner side of the extrusion cavity, the extrusion springs are stretched, and the extrusion plates extrude the plastic bottles towards one side of the crushing roller, so that the plastic bottles are convenient to crush, the plastic bottles are prevented from jumping and being difficult to crush during crushing, and the crushing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic product recycling, and in particular to a plastic product pretreatment recycling device. Background Art

[0002] Plastic preprocessing and recycling refers to a series of preprocessing operations on discarded plastic products, including separation, classification, cleaning, crushing, etc., in order to convert them into reusable raw materials or products. Through plastic preprocessing and recycling, discarded plastic products can be converted into reusable raw materials, thereby saving natural resources. Plastic preprocessing and recycling helps to reduce the amount of plastic waste and reduce pollution to the environment.

[0003] When plastics are pre-processed and recycled, they need to be crushed. Existing crushing equipment includes a crushing mechanism and a screening mechanism. The crushing mechanism crushes the plastics into particles, and the screening mechanism screens the particles. Smaller particles are screened out and discharged from the discharge port, while larger particles need to be taken out of the crushing box manually, and then put back into the crushing box and crushed again by the crushing mechanism until they become particles that meet the requirements.

[0004] The above-mentioned prior art has the following defects: in the process of crushing plastic, it is necessary to manually take out the plastic particles that do not meet the requirements from the crushing box, and then put them into the crushing box for re-crushing. The process of manual screening and re-putting takes a lot of time and manpower, especially when dealing with a large number of plastic particles. This repetitive labor will significantly reduce production efficiency; when crushing plastic, the crushing box will generate a lot of dust. Manual operation will cause workers to inhale dust, which will affect their health. When crushing plastic, especially for the crushing of plastic bottles, because plastic bottles are relatively round, they are easy to jump on the crushing roller during crushing, making it difficult for the crushing roller to clamp and crush the plastic bottles, and the plastic bottles may jump out of the crushing box, so it is necessary to manually put the plastic bottles back into the crushing box, which increases the operation steps; and because the plastic bottles jump on the crushing roller, the crushed plastic particles are larger, which is difficult to meet the production needs. The plastic with larger particles needs to be put into the crushing mechanism again for crushing, making the operation more cumbersome. Summary of the invention

[0005] In view of the problems in the prior art that the crushed plastics need to be manually screened, which consumes labor and reduces production efficiency, and that it is difficult to crush plastic bottles, and the crushed plastic particles are large and cannot meet production needs, a plastic product pretreatment and recycling device is proposed.

[0006] The present application provides a plastic product pretreatment and recycling device, the purpose of which is to: after the plastic is crushed, there is no need for manual screening and input, so as to improve production efficiency, make it easier to crush plastic bottles, make the crushed plastic particles meet production requirements, and make the operation easier.

[0007] The technical solution of the present invention is: a plastic product pre-processing and recycling device, comprising a crushing box, a feed bin arranged on the top of the crushing box, a discharge bin arranged on one side of the bottom of the crushing box, and an inclined baffle arranged on the inner side of the crushing box, and also comprising a circulating crushing unit arranged in the crushing box;

[0008] The circulating crushing unit comprises a crushing component arranged in the crushing box, a transmission component arranged at the bottom of the crushing component, and a shaking component arranged at one side of the crushing component. The crushing component comprises a crushing assembly arranged in the crushing box, an extrusion assembly arranged at the top of the crushing assembly, a transmission assembly arranged at the rear side of the crushing box, and an intermittent rotation assembly arranged at one side of the transmission assembly.

[0009] The crushing assembly includes two crushing rollers rotatably connected in a crushing box and symmetrically distributed, a first fixed shaft fixedly connected to the rear side of one of the crushing rollers, the first fixed shaft being rotatably connected to the crushing box, a first driving motor fixedly connected to the rear side of the crushing box, an output shaft of the first driving motor extending to the inside of the crushing box and fixedly connected to the rear side of the other crushing roller, second fixed shafts fixedly connected to the front ends of the two crushing rollers, two second fixed shafts extending to the outside of the crushing box at one end away from the crushing rollers, first gears fixedly sleeved on the outsides of the two second fixed shafts, and the two first gears being meshed with each other.

[0010] Furthermore, the extrusion assembly includes a rotating shaft rotatably connected to the crushing box, a first connecting shaft fixedly connected to one end of the rotating shaft, the first connecting shaft is rotatably connected to the crushing box, a plurality of side plates fixedly connected to the outside of the rotating shaft and symmetrically distributed, two extrusion cavities symmetrically distributed are opened on the side of the side plate away from the rotating shaft, extrusion rods respectively slidably connected to the two extrusion cavities, an extrusion plate fixedly connected to the side of the extrusion rod away from the extrusion cavity, two extrusion springs symmetrically distributed fixedly connected between the extrusion plate and the side plate, the two extrusion springs are respectively sleeved on the outsides of the two extrusion rods, two first cams symmetrically distributed are fixedly connected to the crushing box, and the extrusion plate is slidably connected to the two first cams respectively.

[0011] Furthermore, the transmission assembly includes an L-shaped fixing frame fixedly connected to the outside of the crushing box, a fixing plate fixedly connected to one end of the L-shaped fixing frame, a transmission shaft rotatably connected to one end of the fixing plate, a first belt sleeved between the transmission shaft and the first fixed shaft, a fixing bar rotatably connected to the other end of the fixing plate, and second gears fixedly sleeved on the fixing bar and the outside of the transmission shaft respectively, and the two second gears are meshed and connected with each other.

[0012] Furthermore, the intermittent rotating component includes a connecting bar fixedly connected to one end of the fixed bar, an arc block fixedly connected to one end of the connecting bar, a toggle rod fixedly connected to the other end of the connecting bar, a round block fixedly connected to the first connecting shaft, a ring sleeved on the outside of the round block, a plurality of connecting blocks fixedly connected between the round block and the ring and distributed in a circular array, a toggle hole provided on the connecting block, the toggle rod is slidably connected to the inner side of the toggle hole, a notch provided on the connecting block near one end of the round block and connected to the inner side of the toggle hole, a plurality of arc plates fixedly connected to the ring and distributed in a circular array, and the arc block is slidably connected to the inner side of the arc plate.

[0013] Further, the transmission component includes a screening component arranged in the crushing box, and a conveying component arranged on one side of the crushing box;

[0014] The screening assembly includes two symmetrically distributed mounting seats fixedly connected to the crushing box, two symmetrically distributed active cavities opened on the mounting seats, plug rods slidably connected to the two active cavities, respectively, a vibration spring fixedly connected between the plug rod and the active cavity, a screening plate fixedly connected to the end of the plug rod away from the active cavity, a plurality of evenly distributed mesh holes opened on the screening plate, two symmetrically distributed third fixed shafts rotatably connected to the crushing box, second cams fixedly connected to the two third fixed shafts, respectively, the outer side of the second cam abuts against the screening plate, a third belt is sleeved between the two third fixed shafts, and a second belt is sleeved between one of the third fixed shafts and the first fixed shaft.

[0015] Furthermore, the conveying assembly includes a conveying cylinder fixedly connected to one side of the crushing box, a feed pipe fixedly connected to the conveying cylinder, a discharge pipe fixedly connected to the conveying cylinder and located at the top of the feed pipe, the feed pipe and the discharge pipe are both fixedly connected to the crushing box, an auger shaft rotatably connected to the inner side of the conveying cylinder, an auger blade fixedly connected to the outer side of the auger shaft, a second drive motor fixedly connected to the bottom of the conveying cylinder, and the output shaft of the second drive motor extends into the conveying cylinder and is fixedly connected to the auger shaft.

[0016] Further, the shaking component includes a left and right toggle assembly arranged in the crushing box, and an up and down toggle assembly arranged at the bottom of the left and right toggle assembly;

[0017] The left and right toggle assemblies include two symmetrically distributed slide grooves opened on the inner wall of the crushing box, sliders slidably connected to the inner sides of the two slide grooves, a return spring fixedly connected between the slider and the inner wall of the slide groove, toggle cavities opened on the two sliders, pins slidably connected to the two toggle cavities, a shaking plate fixedly connected between the two pins, a plurality of evenly distributed protrusions fixedly connected to the bottom of the shaking plate, a reciprocating screw rod rotatably connected to the crushing box, a moving seat threadedly sleeved on the outside of the reciprocating screw rod, a roller rotatably connected to the top of the moving seat, the rollers are respectively rollingly connected to the plurality of protrusions, a limit rod fixedly connected to the inner wall of the crushing box, and the moving seat is slidably connected to the outside of the limit rod.

[0018] Furthermore, the up and down toggle assembly includes a first toggle shaft fixedly connected to one end of the reciprocating screw rod, a second toggle shaft fixedly connected to the other end of the reciprocating screw rod, a third cam fixedly sleeved on the outside of the first toggle shaft and the second toggle shaft, respectively, the outside of the third cam abuts against the shaking plate, the second toggle shaft is rotatably connected to the crushing box, and a fourth belt sleeved between the second toggle shaft and the first connecting shaft.

[0019] Beneficial effects of the present invention:

[0020] 1. The first connecting shaft rotates to drive the rotating shaft to rotate, drive the side plate to rotate, and drive the extrusion plate to rotate, so that the plastic bottles in the feed bin move to the side of the inclined baffle plate, and the plastic bottles fall onto the crushing roller through the inclined baffle plate. When the extrusion plate rotates, it slides with the outer side of the first cam. Under the action of the first cam, the extrusion plate moves downward, and the extrusion rod slides inside the extrusion cavity. The extrusion spring is stretched, and the extrusion plate squeezes the plastic bottle to the side of the crushing roller, which is convenient for crushing the plastic bottle, prevents the plastic bottle from jumping when crushing, and is difficult to crush, thereby improving the crushing efficiency.

[0021] 2. The crushed plastic is screened through the screening plate. Plastics with a diameter larger than the mesh aperture will stay on the top of the screening plate, and plastics with a smaller diameter will fall from the mesh and be discharged from the discharge bin for recycling. The granular plastics are transported to the top of the conveying cylinder through the auger blades and re-enter the crushing box from the discharge pipe for secondary crushing, so that the particle size of the crushed plastic meets the requirements, avoiding the manual re-putting of plastic particles that do not meet the requirements into the crushing box, and improving the efficiency of plastic recycling.

[0022] 3. The first connecting shaft rotates, and under the action of the fourth belt, the first shift shaft, the second shift shaft and the reciprocating screw are driven to rotate, and the third cam is driven to rotate, so that the shaking plate shakes up and down, and the plastic particles thereon are evenly shaken off. The movable seat moves left and right on the reciprocating screw as the reciprocating screw rotates, and under the action of the protrusion, one side of the shaking plate moves up and down, causing the shaking plate to shake left and right, so that the plastic particles on the shaking plate move toward the middle of the shaking plate, and the plastic particles fall downward from the middle of the shaking plate, which is convenient for them to be crushed again, thereby improving the flexibility of the shaking of the shaking plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the rear three-dimensional structure of the present invention;

[0025] Figure 3 It is a schematic cross-sectional structure diagram of the circulating crushing unit of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the crushing assembly of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the crushing component of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the extrusion assembly of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the intermittent rotating assembly of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the screening component of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the conveying assembly of the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the shaking component of the present invention;

[0033] Fig.11 It is a partial structural schematic diagram of the left and right toggle assembly of the present invention.

[0034] In the figure:

[0035] 1. Crushing box; 11. Feed bin; 12. Discharge bin; 13. Oblique baffle; 2. Crushing assembly; 21. Crushing roller; 22. First gear; 23. First fixed shaft; 24. First drive motor; 25. Second fixed shaft; 3. Extrusion assembly; 31. Rotating shaft; 32. First connecting shaft; 33. Side plate; 34. Extrusion plate; 35. First cam; 36. Extrusion rod; 37. Extrusion spring; 38. Extrusion chamber; 4. Transmission assembly; 41. L-shaped fixing frame; 42. First belt; 43. Transmission shaft; 44. Fixed plate; 45. Second gear; 46. Fixed bar; 5. Intermittent rotating assembly; 51. Arc block; 52. Connecting bar; 53. Toggle rod; 54. Arc plate; 55. Ring; 56. Connecting block; 57. Toggle hole; 58. round block; 59, notch; 6, screening component; 61, screening plate; 62, mounting seat; 63, second cam; 64, movable chamber; 65, vibration spring; 66, plug rod; 67, third fixed shaft; 68, second belt; 69, third belt; 7, conveying component; 71, conveying cylinder; 72, auger shaft; 73, auger blade; 74, second drive motor; 75, feed pipe; 76, discharge pipe; 8, left and right toggle component; 81, reciprocating screw rod; 82, limit rod; 83, moving seat; 84, roller; 85, protrusion; 86, shaking plate; 87, slider; 88, pin shaft; 89, reset spring; 810, toggle chamber; 9, up and down toggle component; 91, third cam; 92, first toggle shaft; 93, second toggle shaft; 94, fourth belt. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] Example 1, reference Figure 1-Figure 4, which is the first embodiment of the present invention, provides a plastic product pre-processing and recycling device, including a crushing box 1, a feed bin 11 fixedly connected to the top of the crushing box 1, a discharge bin 12 fixedly connected to one side of the bottom of the crushing box 1, and an inclined baffle 13 fixedly connected to the inner side of the crushing box 1, and also includes a circulating crushing unit installed in the crushing box 1; the circulating crushing unit includes a crushing component installed in the crushing box 1, a transmission component installed at the bottom of the crushing component, and a shaking component installed on one side of the crushing component; the crushing component includes a crushing assembly 2 installed in the crushing box 1, an extrusion assembly 3 installed on the top of the crushing assembly 2, a transmission assembly 4 installed on the rear side of the crushing box 1, and an inert gas transmission assembly 4 installed on one side of the transmission assembly 4. The intermittent rotating component 5; the crushing component 2 includes two crushing rollers 21 symmetrically distributed and rotatably connected in the crushing box 1, a first fixed shaft 23 fixedly connected to the rear side of one of the crushing rollers 21, the first fixed shaft 23 is rotatably connected to the crushing box 1, a first drive motor 24 fixedly connected to the rear side of the crushing box 1, the output shaft of the first drive motor 24 extends to the inside of the crushing box 1 and is fixedly connected to the rear side of the other crushing roller 21, second fixed shafts 25 fixedly connected to the front ends of the two crushing rollers 21, the two second fixed shafts 25 extend to the outside of the crushing box 1 at one end away from the crushing roller 21, and first gears 22 fixedly sleeved on the outsides of the two second fixed shafts 25, and the two first gears 22 are meshed with each other.

[0038] Specifically, when in use, a plastic bottle is put into the feed bin 11, the plastic bottle enters the crushing box 1 from the feed bin 11, and is crushed by the circulating crushing unit. The crushed plastic bottle is discharged from the discharge bin 12 to the crushing box 1 for recycling, and the plastic bottle is crushed by the crushing component. The larger particles of plastic after crushing are transmitted by the transmission component, and the larger particles of plastic transmitted are shaken off by the shaking component, so that the larger particles of plastic can be evenly sprinkled on the crushing component, and are crushed for the second time. The first drive motor 24 is started to drive the crushing roller 21 connected thereto to rotate, and one of the second fixed shafts 25 is driven to rotate, and one of the second fixed shafts 25 is driven to rotate. The first gear 22 rotates, driving the other first gear 22 to rotate in the opposite direction, driving the other second fixed shaft 25 to rotate in the opposite direction, and driving the other crushing roller 21 to rotate in the opposite direction, so that the two crushing rollers 21 rotate in the crushing box 1 and rotate in opposite directions, so as to crush the plastic bottles. The plastic bottles are squeezed toward the crushing roller 21 through the squeezing component 3, so that the plastic bottles are easier to be crushed, and the plastic bottles are prevented from jumping during crushing, which makes it difficult to crush, thereby improving the crushing efficiency. The intermittent rotating component 5 is driven to rotate through the transmission component 4, and the squeezing component 3 is driven to rotate intermittently, so as to intermittently squeeze the plastic bottles, which will not affect the crushing of the plastic bottles in the feed bin 11.

[0039] Reference Figure 5 and Figure 6The extrusion assembly 3 includes a rotating shaft 31 rotatably connected to the crushing box 1, a first connecting shaft 32 fixedly connected to one end of the rotating shaft 31, the first connecting shaft 32 is rotatably connected to the crushing box 1, a plurality of side plates 33 fixedly connected to the outside of the rotating shaft 31 and symmetrically distributed, two extrusion chambers 38 symmetrically distributed and opened on the side of the side plate 33 away from the rotating shaft 31, extrusion rods 36 respectively slidably connected to the two extrusion chambers 38, an extrusion plate 34 fixedly connected to the side of the extrusion rod 36 away from the extrusion chamber 38, two extrusion springs 37 symmetrically distributed and fixedly connected between the extrusion plate 34 and the side plate 33, the two extrusion springs 37 are respectively sleeved on the outside of the two extrusion rods 36, two first cams 35 symmetrically distributed and fixedly connected to the crushing box 1, and the extrusion plate 34 is slidably connected to the two first cams 35 respectively.

[0040] Specifically, when the first connecting shaft 32 rotates, it drives the rotating shaft 31 to rotate, drives the side plate 33 to rotate, and drives the extrusion plate 34 to rotate, so that the plastic bottles in the feed bin 11 move toward the side of the inclined baffle 13, and the plastic bottles fall onto the crushing roller 21 through the inclined baffle 13. When the extrusion plate 34 rotates, it slides with the outer side of the first cam 35. Under the action of the first cam 35, the extrusion plate 34 moves downward, so that the extrusion rod 36 slides inside the extrusion cavity 38, and the extrusion spring 37 is stretched. The extrusion plate 34 squeezes the plastic bottle to the side of the crushing roller 21 to facilitate the crushing of the plastic bottle. When the extrusion plate 34 moves away from the first cam 35, the extrusion spring 37 is reset, so that the extrusion rod 36 moves toward the inside of the extrusion cavity 38, and the extrusion plate 34 moves toward the side of the side plate 33, so that when the plastic bottle enters the crushing box 1 from the feed bin 11, it will not be stuck between the extrusion plate 34 and the side plate 33.

[0041] Reference Figure 7 The transmission assembly 4 includes an L-shaped fixing frame 41 fixedly connected to the outside of the crushing box 1, a fixing plate 44 fixedly connected to one end of the L-shaped fixing frame 41, a transmission shaft 43 rotatably connected to one end of the fixing plate 44, a first belt 42 sleeved between the transmission shaft 43 and the first fixed shaft 23, a fixing bar 46 rotatably connected to the other end of the fixing plate 44, and second gears 45 fixedly sleeved on the fixing bar 46 and the outside of the transmission shaft 43 respectively, and the two second gears 45 are meshed and connected with each other.

[0042] Specifically, when the first fixed shaft 23 rotates, under the action of the first belt 42, the transmission shaft 43 is driven to rotate, which drives one of the second gears 45 to rotate, drives the other second gear 45 to rotate, drives the fixed bar 46 to rotate, and then drives the intermittent rotating component 5 to rotate. Through the intermittent rotating component 5, the first connecting shaft 32 rotates intermittently, so that the extrusion component 3 intermittently squeezes the plastic bottle.

[0043] Reference Figure 7The intermittent rotating assembly 5 includes a connecting strip 52 fixedly connected to one end of the fixing strip 46, an arc block 51 fixedly connected to one end of the connecting strip 52, a toggle rod 53 fixedly connected to the other end of the connecting strip 52, a round block 58 fixedly connected to the first connecting shaft 32, a ring 55 sleeved on the outside of the round block 58, a plurality of connecting blocks 56 distributed in a ring array and fixedly connected between the round block 58 and the ring 55, a toggle hole 57 provided on the connecting block 56, the toggle rod 53 is slidably connected to the inner side of the toggle hole 57, a notch 59 provided at one end of the connecting block 56 close to the round block 58 and connected to the inner side of the toggle hole 57, a plurality of arc plates 54 distributed in a ring array and fixedly connected to the ring 55, and the arc block 51 is slidably connected to the inner side of the arc plate 54.

[0044] Specifically, when the fixed bar 46 rotates, it drives the connecting bar 52 to rotate, drives the toggle rod 53 to slide in the toggle hole 57, drives the connecting block 56 to rotate, drives the round block 58 and the ring 55 to rotate, so that the arc block 51 slides on the inner side of the arc plate 54. When the arc block 51 slides on the inner side of the arc plate 54, the ring 55 stops rotating, and the toggle rod 53 slides upward on the inner side of the toggle hole 57, and will move out from the inner side of the notch 59, and will enter the next toggle hole 57 from another notch 59, and slide in the toggle hole 57, which will continue to drive the connecting block 56 to rotate, and this cycle is repeated, driving the ring 55 and the round block 58 to rotate intermittently, and then driving the first connecting shaft 32 to rotate intermittently.

[0045] Example 2, reference Figure 8 , which is the second embodiment of the present invention, which is different from the first embodiment in that: the transmission component includes a screening component 6 installed in the crushing box 1, and a conveying component 7 installed on one side of the crushing box 1; the screening component 6 includes two symmetrically distributed mounting seats 62 fixedly connected in the crushing box 1, two symmetrically distributed active chambers 64 opened on the mounting seats 62, plug rods 66 slidably connected in the two active chambers 64, respectively, a vibration spring 65 fixedly connected between the plug rod 66 and the active chamber 64, a screening plate 61 fixedly connected to the end of the plug rod 66 away from the active chamber 64, a plurality of evenly distributed meshes opened on the screening plate 61, two symmetrically distributed third fixed shafts 67 rotatably connected to the crushing box 1, and second cams 63 fixedly connected to the two third fixed shafts 67, respectively, the outer side of the second cam 63 conflicts with the screening plate 61, a third belt 69 is sleeved between the two third fixed shafts 67, and a second belt 68 is sleeved between one of the third fixed shafts 67 and the first fixed shaft 23.

[0046] Specifically, the crushed plastic is screened by the screening plate 61, and those with a diameter larger than the mesh aperture will stay on the top of the screening plate 61, and those with a smaller diameter will fall from the mesh and be discharged from the discharge bin 12 for recovery. The first fixed shaft 23 rotates, and through the second belt 68, one of the third fixed shafts 67 is driven to rotate. Under the action of the third belt 69, the other third fixed shaft 67 is driven to rotate, and the two second cams 63 are driven to rotate synchronously, thereby driving the screening plate 61 to move upward, driving the insertion rod 66 to move upward inside the active cavity 64, stretching the vibration spring 65, and under the resetting action of the vibration spring 65, driving the insertion rod 66 to move toward the inside of the active cavity 64, driving the screening plate 61 to move downward, and then when the second cam 63 continues to rotate, under the action of the vibration spring 65, the screening plate 61 is driven to vibrate up and down, so as to facilitate the screening of the crushed plastic on the top of the screening plate 61, so that the smaller particles of plastic staying on the top of the screening plate 61 slide from the top of the screening plate 61 to one side, so as to facilitate the conveying component 7 to convey the larger particles of plastic.

[0047] Reference Fig. 9 The conveying assembly 7 includes a conveying cylinder 71 fixedly connected to one side of the crushing box 1, a feed pipe 75 fixedly connected to the conveying cylinder 71, a discharge pipe 76 fixedly connected to the conveying cylinder 71 and located at the top of the feed pipe 75, the feed pipe 75 and the discharge pipe 76 are both fixedly connected to the crushing box 1, an auger shaft 72 rotatably connected to the inner side of the conveying cylinder 71, an auger blade 73 fixedly connected to the outer side of the auger shaft 72, and a second drive motor 74 fixedly connected to the bottom of the conveying cylinder 71, and the output shaft of the second drive motor 74 extends into the conveying cylinder 71 and is fixedly connected to the auger shaft 72.

[0048] Specifically, the second drive motor 74 is started to drive the auger shaft 72 to rotate, and the auger blade 73 to rotate. The larger plastic particles on the top of the screening plate 61 will enter the conveying cylinder 71 from the feed pipe 75, and the auger blade 73 will convey the plastic particles to the top of the conveying cylinder 71, and re-enter the crushing box 1 from the discharge pipe 76 for secondary crushing, so that the particle size of the crushed plastic meets the requirements. In this way, the plastic particles that do not meet the requirements are continuously recycled and re-entered into the crushing box 1 for re-crushing, avoiding the manual re-entry of plastic particles that do not meet the requirements into the crushing box 1, thereby improving the efficiency of plastic recycling. The remaining structure is the same as that of Example 1.

[0049] Example 3, reference Fig.10 and Fig.11, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the shaking component includes a left and right toggle assembly 8 installed in the crushing box 1, and an upper and lower toggle assembly 9 installed at the bottom of the left and right toggle assembly 8; the left and right toggle assembly 8 includes two symmetrically distributed slide grooves opened on the inner wall of the crushing box 1, sliders 87 respectively slidably connected to the inner sides of the two slide grooves, a return spring 89 fixedly connected between the slider 87 and the inner wall of the slide groove, and toggle cavities 810 respectively opened on the two sliders 87, respectively sliding A pin shaft 88 connected to the two toggle chambers 810, a shaking plate 86 fixedly connected between the two pin shafts 88, a plurality of evenly distributed protrusions 85 fixedly connected to the bottom of the shaking plate 86, a reciprocating screw rod 81 rotatably connected to the crushing box 1, a moving seat 83 threadedly sleeved on the outside of the reciprocating screw rod 81, a roller 84 rotatably connected to the top of the moving seat 83, the roller 84 is respectively rollingly connected to the plurality of protrusions 85, a limiting rod 82 fixedly connected to the inner wall of the crushing box 1, and the moving seat 83 is slidably connected to the outside of the limiting rod 82.

[0050] Specifically, when the reciprocating screw 81 rotates, under the action of the limit rod 82, the movable seat 83 slides on the outside of the reciprocating screw 81, driving the roller 84 to move, so that the roller 84 rolls on the shaking plate 86. When the roller 84 hits the protrusion 85, the shaking plate 86 is lifted up, so that the slider 87 slides upward on the inside of the slide groove, squeezing the return spring 89, so that the pin 88 on one side is retracted into the inside of the toggle cavity 810, and the pin 88 on the other side is extended out of the toggle cavity 810. When the roller 84 leaves the protrusion 85, the When the reciprocating screw 81 is in continuous rotation, the movable seat 83 moves left and right, and the shaking plate 86 is shaken left and right under the action of the protrusion 85, so that the larger particles of plastic falling on the shaking plate 86 are shaken to the middle of the shaking plate 86, and then shaken from the shaking plate 86 to the crushing roller 21, so that the larger particles of plastic can fall evenly on the crushing roller 21, so as to facilitate their re-crushing.

[0051] Reference Fig.10 The upper and lower toggle assembly 9 includes a first toggle shaft 92 fixedly connected to one end of the reciprocating screw rod 81, a second toggle shaft 93 fixedly connected to the other end of the reciprocating screw rod 81, a third cam 91 fixedly sleeved on the outside of the first toggle shaft 92 and the second toggle shaft 93 respectively, the outside of the third cam 91 abuts against the shaking plate 86, the second toggle shaft 93 is rotatably connected to the crushing box 1, and a fourth belt 94 sleeved between the second toggle shaft 93 and the first connecting shaft 32.

[0052] Specifically, the first connecting shaft 32 rotates, and under the action of the fourth belt 94, the second toggle shaft 93 is driven to rotate, the reciprocating screw rod 81 is driven to rotate, the first toggle shaft 92 is driven to rotate, and the two third cams 91 are driven to rotate synchronously, so that the shaking plate 86 rotates with the pin shaft 88 as the rotation axis, so that the shaking plate 86 shakes up and down, and the plastic particles on the shaking plate 86 are evenly shaken off, so that the shaking plate 86 can not only shake up and down, but also shake left and right, thereby improving the flexibility of the shaking of the shaking plate 86. The rest of the structure is the same as that of Example 2.

[0053] In summary, the working principle of the present invention is as follows: when in use, the plastic bottle is crushed by the crushing assembly 2. During the crushing process, under the action of the first belt 42, the crushing assembly 2 drives the transmission shaft 43 to rotate, and under the cooperation of the two second gears 45, drives the fixing bar 46 to rotate, drives the connecting bar 52 to rotate, drives the toggle rod 53 to rotate, so that the toggle rod 53 slides inside the toggle hole 57, and then drives the connecting block 56 to rotate, drives the round block 58 and the ring 55 to rotate, when the arc block 51 slides inside the arc plate 54, the ring 55 stops rotating, and the toggle rod 53 slides upward inside the toggle hole 57, and will move out from the inside of the notch 59, and will enter the next toggle hole 57 from another notch 59, and slide in the toggle hole 57, and will continue to drive the connecting block 56 to rotate, so as to repeat the cycle, drive the ring 55 and the round block 58 to rotate intermittently, and then drive the first connecting shaft 32 to rotate intermittently, drive the rotating shaft 31 to rotate intermittently, and drive the side plate 33 and the extrusion plate 3 4 rotates, so that the plastic bottles in the feed bin 11 fall on the crushing roller 21. Under the action of the first cam 35, the squeezing plate 34 moves downward to squeeze the plastic bottles. The crushed plastic bottles are screened through the screening component 6. The larger particles of plastic are re-conveyed to the crushing box 1 for crushing through the conveying component 7. The larger particles of plastic will fall on the shaking plate 86. Through the rotation of the first connecting shaft 32, under the action of the fourth belt 94, the first shifting shaft 92, the second shifting shaft 93 and the reciprocating screw 81 are driven to rotate, and the third cam 91 is driven to rotate, so that the shaking plate 86 shakes up and down, and the plastic particles thereon are evenly shaken off. The moving seat 83 moves left and right on the reciprocating screw 81 as the reciprocating screw 81 rotates. Under the action of the protrusion 85, one side of the shaking plate 86 moves up and down, so that the shaking plate 86 shakes left and right, so that the plastic particles on the shaking plate 86 move to the middle of the shaking plate 86, so that the plastic particles fall down from the middle of the shaking plate 86.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A plastic product pre-processing and recycling device, comprising a crushing box (1), a feed bin (11) arranged on the top of the crushing box (1), a discharge bin (12) arranged on one side of the bottom of the crushing box (1), and an inclined baffle (13) arranged on the inner side of the crushing box (1), characterized in that: It also includes a circulating crushing unit arranged in the crushing box (1); The cyclic crushing unit comprises a crushing component arranged in a crushing box (1), a transmission component arranged at the bottom of the crushing component, and a shaking component arranged at one side of the crushing component. The crushing component comprises a crushing assembly (2) arranged in the crushing box (1), an extrusion assembly (3) arranged at the top of the crushing assembly (2), a transmission assembly (4) arranged at the rear side of the crushing box (1), and an intermittent rotation assembly (5) arranged at one side of the transmission assembly (4); The crushing assembly (2) comprises two crushing rollers (21) symmetrically distributed and rotatably connected in a crushing box (1), a first fixed shaft (23) fixedly connected to the rear side of one of the crushing rollers (21), the first fixed shaft (23) being rotatably connected to the crushing box (1), a first drive motor (24) fixedly connected to the rear side of the crushing box (1), the output shaft of the first drive motor (24) extending to the inside of the crushing box (1) and fixedly connected to the rear side of the other crushing roller (21), second fixed shafts (25) respectively fixedly connected to the front ends of the two crushing rollers (21), the two second fixed shafts (25) extending to the outside of the crushing box (1) at one end away from the crushing rollers (21), first gears (22) respectively fixedly sleeved on the outsides of the two second fixed shafts (25), and the two first gears (22) being meshed with each other.

2. The plastic product pretreatment and recovery device according to claim 1, characterized in that: The extrusion assembly (3) comprises a rotating shaft (31) rotatably connected to the crushing box (1), a first connecting shaft (32) fixedly connected to one end of the rotating shaft (31), the first connecting shaft (32) being rotatably connected to the crushing box (1), a plurality of symmetrically distributed side plates (33) fixedly connected to the outer side of the rotating shaft (31), two symmetrically distributed extrusion chambers (38) provided on the side of the side plate (33) away from the rotating shaft (31), extrusion rods (36) respectively slidably connected to the two extrusion chambers (38), an extrusion plate (34) fixedly connected to the side of the extrusion rod (36) away from the extrusion chamber (38), two symmetrically distributed extrusion springs (37) fixedly connected between the extrusion plate (34) and the side plate (33), the two extrusion springs (37) respectively being sleeved on the outer sides of the two extrusion rods (36), and two symmetrically distributed first cams (35) fixedly connected to the crushing box (1), the extrusion plate (34) being slidably connected to the two first cams (35) respectively.

3. The plastic product pretreatment and recovery device according to claim 2, characterized in that: The transmission assembly (4) comprises an L-shaped fixing frame (41) fixedly connected to the outside of the crushing box (1), a fixing plate (44) fixedly connected to one end of the L-shaped fixing frame (41), a transmission shaft (43) rotatably connected to one end of the fixing plate (44), a first belt (42) sleeved between the transmission shaft (43) and a first fixing shaft (23), a fixing bar (46) rotatably connected to the other end of the fixing plate (44), and second gears (45) respectively fixedly sleeved on the fixing bar (46) and the outside of the transmission shaft (43), wherein the two second gears (45) are meshedly connected to each other.

4. The plastic product pretreatment and recovery device according to claim 3, characterized in that: The intermittent rotating assembly (5) comprises a connecting bar (52) fixedly connected to one end of the fixing bar (46), an arc block (51) fixedly connected to one end of the connecting bar (52), a toggle rod (53) fixedly connected to the other end of the connecting bar (52), a round block (58) fixedly connected to the first connecting shaft (32), a circular ring (55) sleeved on the outside of the round block (58), and a ring (55) fixedly connected between the round block (58) and the circular ring (55) in an annular array. A plurality of connecting blocks (56) are arranged in a row, a toggle hole (57) is provided on the connecting block (56), a toggle rod (53) is slidably connected to the inner side of the toggle hole (57), a notch (59) is provided at one end of the connecting block (56) close to the round block (58) and is connected to the inner side of the toggle hole (57), a plurality of arc plates (54) are arranged in a ring array and are fixedly connected to the ring (55), and the arc block (51) is slidably connected to the inner side of the arc plate (54).

5. The plastic product pretreatment and recovery device according to claim 1, characterized in that: The transmission component comprises a screening component (6) arranged in the crushing box (1), and a conveying component (7) arranged on one side of the crushing box (1); The screening assembly (6) comprises two symmetrically distributed mounting seats (62) fixedly connected to the crushing box (1), two symmetrically distributed active chambers (64) provided on the mounting seats (62), an insertion rod (66) slidably connected to the two active chambers (64), a vibration spring (65) fixedly connected between the insertion rod (66) and the active chamber (64), a screening plate (61) fixedly connected to the end of the insertion rod (66) away from the active chamber (64), a plurality of evenly distributed mesh holes provided on the screening plate (61), two symmetrically distributed third fixed shafts (67) rotatably connected to the crushing box (1), and second cams (63) fixedly connected to the two third fixed shafts (67), the outer side of the second cam (63) abutting against the screening plate (61), a third belt (69) sleeved between the two third fixed shafts (67), and a second belt (68) sleeved between one of the third fixed shafts (67) and the first fixed shaft (23).

6. The plastic product pretreatment and recovery device according to claim 5, characterized in that: The conveying assembly (7) comprises a conveying cylinder (71) fixedly connected to one side of the crushing box (1), a feed pipe (75) fixedly connected to the conveying cylinder (71), a discharge pipe (76) fixedly connected to the conveying cylinder (71) and located at the top of the feed pipe (75), the feed pipe (75) and the discharge pipe (76) both being fixedly connected to the crushing box (1), an auger shaft (72) rotatably connected to the inner side of the conveying cylinder (71), an auger blade (73) fixedly connected to the outer side of the auger shaft (72), and a second drive motor (74) fixedly connected to the bottom of the conveying cylinder (71), wherein the output shaft of the second drive motor (74) extends into the conveying cylinder (71) and is fixedly connected to the auger shaft (72).

7. The plastic product pretreatment and recovery device according to claim 2, characterized in that: The shaking component comprises a left-right toggle assembly (8) arranged in the crushing box (1), and an up-down toggle assembly (9) arranged at the bottom of the left-right toggle assembly (8); The left and right toggle assembly (8) comprises two symmetrically distributed slide grooves provided on the inner wall of the crushing box (1), sliders (87) respectively slidably connected to the inner sides of the two slide grooves, a return spring (89) fixedly connected between the sliders (87) and the inner wall of the slide grooves, a toggle cavity (810) respectively provided on the two sliders (87), a pin shaft (88) respectively slidably connected to the two toggle cavities (810), a shaking plate (86) fixedly connected between the two pin shafts (88), and a fixing spring (89). A plurality of evenly distributed protrusions (85) are connected to the bottom of the shaking plate (86), a reciprocating screw rod (81) is rotatably connected to the crushing box (1), a moving seat (83) is threadedly sleeved on the outside of the reciprocating screw rod (81), a roller (84) is rotatably connected to the top of the moving seat (83), the roller (84) is respectively connected to the plurality of protrusions (85) in a rolling manner, a limiting rod (82) is fixedly connected to the inner wall of the crushing box (1), and the moving seat (83) is slidably connected to the outside of the limiting rod (82).

8. The plastic product pretreatment and recovery device according to claim 7, characterized in that: The up-and-down toggle assembly (9) comprises a first toggle shaft (92) fixedly connected to one end of the reciprocating screw rod (81), a second toggle shaft (93) fixedly connected to the other end of the reciprocating screw rod (81), a third cam (91) fixedly sleeved on the outside of the first toggle shaft (92) and the second toggle shaft (93), the outside of the third cam (91) abutting against the shaking plate (86), the second toggle shaft (93) being rotatably connected to the crushing box (1), and a fourth belt (94) sleeved between the second toggle shaft (93) and the first connecting shaft (32).

Images