Environment-friendly PET bottle flake crushing device

Abstract

The invention relates to the technical field of PET processing, and particularly discloses an environment-friendly PET bottle flake crushing device which is used for solving the problem that in the prior art, the product quality and the processing efficiency cannot be guaranteed. Comprising a crushing box, the four corners of the lower end of the crushing box are each provided with a supporting leg, the upper end of the crushing box is provided with a label removing component used for removing labels of PET bottle bodies, the bottom of the crushing box is provided with a discharging port, the input end of the label removing component is connected with a driving shaft, and the other end of the driving shaft is connected with the output end of a driving motor set. The device is designed according to existing requirements, label removing treatment can be conducted on PET bottle bodies, then the label-removed bottle bodies are smashed, full smashing is conducted through the positive and negative cutter set, the screening effect is improved by means of swinging of a screening structure while smashing is conducted, in addition, back flushing operation on a filtering position is matched, and the screening effect is improved. And blockage of the filtering position is avoided, and smooth machining is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of PET processing, in particular to an environmentally friendly PET bottle flake crushing device. Background Art

[0002] PET, also known as polyethylene terephthalate, is a crystalline saturated polyester. In the production process of PET bottle flakes, the PET raw materials need to be crushed and cleaned. At this time, PET raw material crushing equipment is needed. When obtaining raw materials, we often recycle and crush PET bottles. During the recycling process, label removal needs to be considered. The existing patent announcement number CN117358655A provides an all-in-one machine for crushing and washing raw materials for PET bottle flakes production, which records that the bottle body is cleaned and then the cleaned bottle body is crushed. However, there is a lack of a structure for removing labels, which is not conducive to ensuring the quality of the raw materials. In addition, when the crushed material is crushed, it is easy to get blocked, which leads to the equipment stopping processing, which is not conducive to ensuring processing efficiency.

[0003] Based on this, an environmentally friendly PET bottle flake crushing device is now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly PET bottle flake crushing device, which solves the problem that the product quality and processing efficiency cannot be guaranteed in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A kind of environmentally friendly PET bottle flake crushing device comprises a crushing box, wherein the four corner positions of the lower end of the crushing box are respectively provided with a supporting leg, the upper end of the crushing box is provided with a label removing component for removing the label of the PET bottle body, the bottom of the crushing box is provided with a discharge port, the input end of the label removing component is connected with a driving shaft, the other end of the driving shaft is connected with the output end of a driving motor group, the driving motor group is connected with a motor frame outside the crushing box, a crushing component for crushing the bottle body is provided inside the crushing box, the crushing component comprises a crushing half-cylinder, screening holes are distributed on the lower side of the crushing half-cylinder, a crushing knife group is provided inside the crushing half-cylinder, an arc-shaped wrapping plate is cooperated with on both sides of the crushing half-cylinder, a guide V-plate is provided on the upper end of the arc-shaped wrapping plate, the crushing half-cylinder is connected to a swinging component for driving its reciprocating swing, and a hole cleaning component for cleaning the screening holes is provided on the inner wall of the crushing box.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the swing assembly includes a reciprocating sleeve at the end of the crushing half-cylinder shaft, the reciprocating sleeve is rotatably connected to the crushing box, a reciprocating gear ring is fixedly provided on the outer side of the reciprocating sleeve, the lower side of the reciprocating gear ring is meshed with the reciprocating rack, the lower end of the reciprocating rack is fixedly connected to the reciprocating slide, the cross-section of the reciprocating slide is T-shaped, the reciprocating slide is slidably set on the guide sleeve seat, the guide sleeve seat is connected and fixed to the crushing box through a positioning rod, one side of the reciprocating slide is connected to the traction frame, a horizontally set transmission pin is rotatably provided at the upper end of the traction frame, a drive disk is fixedly provided on the drive shaft where the transmission pin is located, a guide elliptical groove is opened on the surface of the drive disk, and the end of the transmission pin is inserted into the guide elliptical groove.

[0007] In an optional scheme: the hole cleaning assembly includes a pressure accumulator box arranged on the outside of the arc-shaped wrapping plate, the air inlet end of the pressure accumulator box is connected to the air inlet duct, and a plurality of blowing holes are distributed on the side of the pressure accumulator box facing the crushing half-cylinder, the outer end of the air inlet duct is connected to the inflation duct, and the other end of the inflation duct is connected to the one-way exhaust end of the inflation cylinder, and a one-way air inlet nozzle is also provided at the end of the inflation cylinder, and a piston block is provided inside the inflation cylinder, and the piston rod on the piston block is connected to the end of the reciprocating slide seat through a transmission connecting rod, and the inflation cylinder is fixedly connected to the outside of the crushing box.

[0008] In an optional solution: the crushing knife group includes a crushing shaft arranged at the axis position of the crushing half-cylinder, a plurality of second crushing knives are distributed on the outside of the crushing shaft, a rotating disk is rotatably provided on the inner sides of both ends of the crushing half-cylinder, a plurality of crushing frames are mounted between the two rotating disks, a plurality of first crushing knives are distributed on the inner sides of the crushing frames, the first crushing knives and the second crushing knives are staggered, and the rotating disk and the crushing shaft are connected to a crushing drive member for driving the reverse rotation thereof.

[0009] In an optional scheme: the crushing drive component includes a forward shaft rotatably set at the axial position of the crushing shaft, a fourth bevel gear is fixedly provided at the outer end of the forward shaft, the inner end of the forward shaft is fixedly connected to the rotating disk, the outer end of the crushing shaft is connected to the reverse shaft, a fifth bevel gear is provided at the end of the reverse shaft, the upper sides of the fourth bevel gear and the fifth bevel gear are meshed with the third bevel gear, the third bevel gear is set at the lower end of the vertical transmission shaft, the vertical transmission shaft is rotatably set on the motor frame, the upper end of the vertical transmission shaft is fixedly provided with a first bevel gear, the drive shaft is provided with a second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0010] In an optional scheme: the label removal component includes a feeding barrel, a separation roller is arranged inside the feeding barrel, a plurality of separation blades for pushing materials are distributed on the outside of the separation roller, and separation protrusions for scraping off the labels on the surface of the PET bottle are distributed on the surface of the separation blades, both ends of the separation roller are rotatably connected to the feeding barrel, the input end of the separation roller is fixedly connected to the end of the driving shaft, a feeding hopper for feeding is provided at the upper end of the feeding barrel, a guide pipe connected to the feed port at the upper end of the crushing box is provided on the lower side of the feeding barrel, and a negative pressure component for sucking away the separated labels is provided at the end of the feeding barrel.

[0011] In an optional scheme: the negative pressure component includes a negative pressure buffer box connected to the exhaust end of the upper end of the feeding barrel, and an exhaust fan is provided at the upper end of the negative pressure buffer box. The exhaust end of the exhaust fan is connected to the exhaust port of the negative pressure buffer box, and the exhaust end of the exhaust fan is connected to the exhaust duct, and the other end of the exhaust duct is connected to a filter component for separating labels.

[0012] In an optional scheme: the filtering component includes a separation cylinder connected to the lower end of the exhaust duct, the lower side of the separation cylinder is connected to an inclined slag discharge channel, the upper end of the slag discharge channel is provided with two sockets, and a second gate and a first gate are respectively provided in the two sockets, a through hole is provided at the center of the bottom of the separation cylinder, a conical cylinder is fixedly provided above the through hole, and filter holes for screening labels are distributed on the outside of the conical cylinder, a rotating sleeve is rotatably provided at the upper end of the conical cylinder, a rejection shaft is provided on the rotating sleeve, a fan blade is fixedly provided at the lower end of the rejection shaft, and a scraper plate is connected to the upper end of the rejection shaft, and the scraper plate matches the outer side of the conical cylinder.

[0013] In an optional scheme: a pneumatic channel is provided at the bottom discharge position of the crushing box, and an air blowing buffer box is provided on one side of the pneumatic channel. The air inlet end of the air blowing buffer box is connected with the exhaust end of the filter component through an air supply pipe, that is, it is connected with the bottom of the through hole, and the surface of the air blowing buffer box is provided with blowing holes for blowing air toward the inside of the pneumatic channel, and an exhaust port for slag discharge is provided on the other side of the pneumatic channel opposite to the air blowing buffer box, and a plurality of exhaust grids are distributed on the exhaust port.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is designed according to the existing needs, and can remove the labels from PET bottles, and then crush the bottles without labels, and use the positive and negative knife groups to fully crush them. While crushing, the screening structure swings to improve the screening effect and reduce the crushing dead angle. In addition, the back-blowing operation of the filter position is coordinated to avoid the blockage of the filter position and ensure smooth processing.

[0015] 2. The present invention constructs a conical filtering structure combined with a pneumatic scraping method to avoid blockage at the label collection position, while also achieving a certain energy-saving effect. In addition, the exhaust gas is rationally utilized and the final material after crushing is air-selected, thereby further improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of another side of the present invention.

[0018] Figure 3 It is a schematic diagram of the lower structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the internal structure of the present invention.

[0020] Figure 5 For the present invention Figure 4 Schematic diagram of the filter component structure.

[0021] Figure 6 It is a schematic diagram of the upper structure of the grinding half cylinder of the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of the lower end of the grinding half cylinder of the present invention.

[0023] Figure 8 It is a schematic diagram of the structure of the arc-shaped wrapping plate of the present invention.

[0024] Fig. 9 It is a schematic diagram of the structure of the drive disk of the present invention.

[0025] Notes on reference numerals: crushing box 100, supporting leg 101; Feeding barrel 201, feeding hopper 202, guide pipe 203, exhaust fan 204, negative pressure buffer box 205, exhaust duct 206, separation roller 207, separation blade 208, separation protrusion 209; Filter component 300, air supply pipeline 301, air selection channel 302, air blowing buffer box 303, separation cylinder 304, impurity discharge port 305, first gate 306, second gate 307, slag discharge channel 308, through hole 309, fan blade 310, rejection shaft 311, filter hole 312, conical cylinder 313, rotating sleeve 314, scraper plate 315, exhaust port 316, exhaust grid 317; Driving motor group 400, motor frame 401, vertical transmission shaft 402, first bevel gear 403, driving plate 404, guiding elliptical groove 405, second bevel gear 406, driving shaft 407, third bevel gear 408, fourth bevel gear 409, inflator 410, fifth bevel gear 411, traction frame 412, guide sleeve 413, reciprocating rack 414, reciprocating slide 415, inflating conduit 416, forward shaft 417, reverse shaft 418, reciprocating gear ring 419, transmission pin 420, transmission connecting rod 421; Guide V-plate 501, arc-shaped wrapping plate 502, pressure storage box 503, air intake duct 504, air blowing hole 505; The crushing half cylinder 600 , the first crushing blade 601 , the crushing frame 602 , the rotating disk 603 , the crushing shaft 604 , the second crushing blade 605 , and the screening hole 606 . DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1-Figure 9 As shown, the embodiment of the present invention provides an environmentally friendly PET bottle flake crushing device, including a crushing box 100, wherein the four corners of the lower end of the crushing box 100 are respectively provided with a support leg 101, and the upper end of the crushing box 100 is provided with a label removing component for removing the label from the PET bottle body, and the input end of the label removing component is connected to the driving shaft 407, and the other end of the driving shaft 407 is connected to the output end of the driving motor group 400, and the driving motor group 400 is connected to the motor frame 401 outside the crushing box 100, and the crushing box 100 is provided with a crushing component for crushing the bottle body, and the crushing component includes a A crushing half cylinder 600, screening holes 606 are distributed on the lower side of the crushing half cylinder 600, a crushing knife group is arranged inside the crushing half cylinder 600, an arc-shaped wrapping plate 502 is arranged on both sides of the crushing half cylinder 600, a guide V-plate 501 is arranged on the upper end of the arc-shaped wrapping plate 502, and the guide V-plate 501 is used to guide the bottle, the crushing half cylinder 600 is connected to a swinging assembly for driving it to swing back and forth, and the swinging assembly makes the crushing half cylinder 600 swing back and forth, thereby improving the screening effect, and the inner wall of the crushing box 100 is provided with a hole cleaning assembly for cleaning the screening holes 606, thereby avoiding the problem of blockage; like Fig. 9As shown, the swing assembly includes a reciprocating shaft sleeve at the shaft end of the crushing half cylinder 600, the reciprocating shaft sleeve is rotatably connected to the crushing box 100, a reciprocating gear ring 419 is fixedly arranged on the outer side of the reciprocating shaft sleeve, the lower side of the reciprocating gear ring 419 is meshed with the reciprocating rack 414, the lower end of the reciprocating rack 414 is fixedly connected to the reciprocating slide 415, the cross section of the reciprocating slide 415 is T-shaped, the reciprocating slide 415 is slidably arranged on the guide sleeve seat 413, the guide sleeve seat 413 is connected and fixed to the crushing box 100 through a positioning rod, one side of the reciprocating slide 415 is connected to the traction frame 412, the upper end of the traction frame 412 is rotatably provided with a horizontally arranged transmission pin 420, the transmission pin 420 is located A driving disc 404 is fixedly provided on the driving shaft 407, and a guiding elliptical groove 405 is provided on the surface of the driving disc 404, and the end of the driving pin 420 is inserted into the guiding elliptical groove 405. Since the guiding elliptical groove 405 is an elliptical structure, when the driving shaft 407 rotates, the guiding elliptical groove 405 on the driving disc 404 matches with the driving pin 420, so that the reciprocating slide 415 slides back and forth along the guide sleeve 413, and the reciprocating rack 414 on the reciprocating slide 415 matches with the reciprocating gear ring 419, so that the crushing half cylinder 600 swings back and forth, so that the material inside the crushing half cylinder 600 can be better screened, and this swinging mode is also conducive to the crushing of the material; The hole cleaning assembly includes a pressure storage box 503 arranged on the outside of the arc-shaped wrapping plate 502, the air inlet end of the pressure storage box 503 is connected to the air inlet duct 504, and a plurality of blowing holes 505 are distributed on the side of the pressure storage box 503 facing the crushing half cylinder 600. The outer end of the air inlet duct 504 is connected to the inflation duct 416, and the other end of the inflation duct 416 is connected to the one-way exhaust end of the inflation cylinder 410. The end of the inflation cylinder 410 is also provided with a one-way air inlet nozzle, and the interior of the inflation cylinder 410 is provided with a piston block. The piston rod on the block is connected to the end of the reciprocating slide 415 through the transmission connecting rod 421, and the inflating cylinder 410 is fixedly connected to the outer side of the crushing box 100, so that when the reciprocating slide 415 drives the crushing half cylinder 600 to swing back and forth, the reciprocating slide 415 will also drive the piston block inside the inflating cylinder 410 to move through the transmission connecting rod 421, so as to inflate the inside of the pressure accumulator box 503, and the inflated gas is ejected along the blowing hole 505, so as to perform a back-blowing operation on the screening hole 606 to avoid the problem of blockage; The crushing knife group includes a crushing shaft 604 arranged at the axis position of the crushing half cylinder 600, a plurality of second crushing knives 605 are distributed on the outside of the crushing shaft 604, rotating disks 603 are rotatably arranged inside the two ends of the crushing half cylinder 600, a plurality of crushing frames 602 are arranged between the two rotating disks 603, a plurality of first crushing knives 601 are distributed inside the crushing frame 602, the first crushing knives 601 and the second crushing knives 605 are staggered, the rotating disk 603 and the crushing shaft 604 are connected to a crushing driving member for driving them to rotate in the opposite direction, and the rotating disk 603 and the crushing shaft 604 are driven by the crushing driving member to rotate in the opposite direction, so that the second crushing knives 605 and the first crushing knives 601 cut the bottle body in the opposite direction, thereby achieving the crushing treatment of the bottle body; like Figure 6-Figure 7 As shown, the pulverizing drive member includes a forward shaft 417 rotatably arranged at the axis position of the pulverizing shaft 604, a fourth bevel gear 409 is fixedly arranged at the outer end of the forward shaft 417, the inner end of the forward shaft 417 is fixedly connected to the rotating disk 603, the outer end of the pulverizing shaft 604 is connected to the reverse shaft 418, and a fifth bevel gear 411 is arranged at the end of the reverse shaft 418, the upper sides of the fourth bevel gear 409 and the fifth bevel gear 411 are meshed with the third bevel gear 408, the third bevel gear 408 is arranged at the lower end of the vertical transmission shaft 402, the vertical transmission shaft 402 is rotatably arranged on the motor frame 401, and the vertical transmission shaft A first bevel gear 403 is fixedly provided on the upper end of 402, and a second bevel gear 406 is provided on the driving shaft 407, and the second bevel gear 406 is meshed with the first bevel gear 403. When the driving shaft 407 rotates, the driving shaft 407 drives the second bevel gear 406 to rotate, and the second bevel gear 406 drives the vertical transmission shaft 402 to rotate through the first bevel gear 403, and the vertical transmission shaft 402 drives the third bevel gear 408 to rotate, and the third bevel gear 408 is matched with the fourth bevel gear 409 and the fifth bevel gear 411, so that the second crushing knife 605 and the first crushing knife 601 cut the bottle body in opposite directions; like Figure 4As shown, the label removal component includes a feeding barrel 201, a separating roller 207 is provided inside the feeding barrel 201, a plurality of separating blades 208 for pushing materials are distributed on the outside of the separating roller 207, and separation protrusions 209 for scraping off the labels on the surface of the PET bottle are distributed on the surface of the separating blades 208, the two ends of the separating roller 207 are rotatably connected to the feeding barrel 201, the input end of the separating roller 207 is fixedly connected to the end of the driving shaft 407, the upper end of the feeding barrel 201 is provided with a feeding hopper 202 for feeding, and the lower side of the feeding barrel 201 is provided with a pulverizing The guide pipe 203 connected to the feed port at the upper end of the box 100 is used to add raw materials along the hopper 202. Under the drive of the driving motor group 400, the driving shaft 407 drives the separation roller 207 to rotate, and the separation roller 207 drives the separation blade 208 and the separation protrusion 209 to rotate, so that the PET bottle body can be transported along the inner cavity of the feeding barrel 201. During the transportation process, the separation protrusion 209 will scrape off the label. The end position of the feeding barrel 201 is provided with a negative pressure component for sucking away the separated label. The negative pressure component can suck away the label in time, thereby ensuring the subsequent processing quality of the bottle body; The negative pressure assembly includes a negative pressure buffer box 205 connected to the air suction end of the upper end of the feeding barrel 201, and an air suction fan 204 is provided at the upper end of the negative pressure buffer box 205. The air suction end of the air suction fan 204 is connected to the air suction port of the negative pressure buffer box 205, and the exhaust end of the air suction fan 204 is connected to the exhaust duct 206. The other end of the exhaust duct 206 is connected to the filter component 300 for separating the labels. In this way, under the action of the air suction fan 204, negative pressure is generated inside the feeding barrel 201, so that the separated labels are sent away, and the sent labels enter the filter component 300 to complete the separation; like Figure 4-Figure 5As shown, the filter component 300 includes a separation cylinder 304 connected to the lower end of the exhaust duct 206, and the lower side of the separation cylinder 304 is connected to a slag discharge channel 308 which is inclined. Two sockets are provided at the upper end of the slag discharge channel 308, and a second gate 307 and a first gate 306 are respectively provided in the two sockets. A through hole 309 is provided at the center of the bottom of the separation cylinder 304, and a conical cylinder 313 is fixedly provided above the through hole 309. Filter holes 312 for screening labels are distributed on the outer side of the conical cylinder 313. A rotating sleeve 314 is rotatably provided at the upper end of the conical cylinder 313, and a rejection shaft 311 is provided on the rotating sleeve 314. A fan blade 310 is fixedly provided at the lower end of the rejection shaft 311. The upper end of the rejection shaft 311 is connected to A scraper plate 315, the scraper plate 315 matches the outer side of the conical cylinder 313. After the airflow enters the separation cylinder 304 along the exhaust duct 206, the labels will be blocked by the conical cylinder 313, and the airflow will be discharged along the through hole 309. When the airflow flows, it will drive the fan blade 310 to rotate. The fan blade 310 drives the scraper plate 315 to rotate through the removal shaft 311. The scraper plate 315 will remove the impurities accumulated on the surface of the conical cylinder 313, so that the labels will not accumulate. The labels will slide down along the slag discharge channel 308. When discharging impurities in the later stage, the first gate plate 306 can be closed, and then the second gate plate 307 can be opened, so that the labels cached between the first gate plate 306 and the second gate plate 307 can be discharged smoothly. The present application here reasonably utilizes the airflow power, does not use additional power, and has a certain energy-saving effect; A pneumatic channel 302 is provided at the bottom discharge position of the pulverizing box 100, and a blowing buffer box 303 is provided on one side of the pneumatic channel 302. The air inlet end of the blowing buffer box 303 is connected with the exhaust end of the filter component 300 through the air supply pipe 301, that is, it is connected with the bottom of the through hole 309, and the surface of the blowing buffer box 303 is provided with blowing holes for blowing air toward the inside of the pneumatic channel 302, and the other side of the pneumatic channel 302 opposite to the blowing buffer box 303 is provided with an exhaust port 316 for slag discharge, and a plurality of exhaust grids 317 are distributed on the exhaust port 316, so that after the crushed material is discharged along the pneumatic channel 302, the exhaust gas of the filter component 300 will be ejected from the blowing buffer box 303, and the ejected airflow will blow toward the material falling in the pneumatic channel 302, thereby air-selecting the material again, further improving the crushing quality.

[0028] Working principle: In actual use, the raw materials are added along the hopper 202. Under the drive of the driving motor group 400, the driving shaft 407 drives the separation roller 207 to rotate, and the separation roller 207 drives the separation blades 208 and the separation protrusions 209 to rotate, so that the PET bottle body can be transported along the inner cavity of the feeding barrel 201. During the transportation process, the separation protrusion 209 will scrape off the label. The end position of the feeding barrel 201 is provided with a negative pressure component for sucking away the separated label. The negative pressure component is used to suck away the label in time, so as to ensure the subsequent processing quality of the bottle body. After the airflow enters the separation barrel 304 along the exhaust duct 206, the label will be blocked by the conical barrel 313, and the airflow will be discharged along the through hole 309. When the airflow flows, it will drive the fan blade 310 to rotate. The fan blade 310 drives the scraper plate 315 to rotate through the removal shaft 311. The scraper plate 315 will remove the impurities accumulated on the surface of the conical barrel 313, so that the label will not accumulate; After the PET bottle body is stripped of its label, it enters the crushing box 100 and then is crushed in the half cylinder 600. The crushing drive member drives the rotating disk 603 and the crushing shaft 604 to rotate in the opposite direction, so that the second crushing knife 605 and the first crushing knife 601 cut the bottle body in the opposite direction to achieve the crushing of the bottle body. Since the guiding elliptical groove 405 is an elliptical structure, when the driving shaft 407 rotates, the guiding elliptical groove 405 on the driving disk 404 matches the driving pin 420, so that the reciprocating slide 415 slides back and forth along the guide sleeve 413, and the reciprocating rack on the reciprocating slide 415 414 cooperates with the reciprocating toothed ring 419, so that the crushing half cylinder 600 swings back and forth, so that the materials inside the crushing half cylinder 600 can be better screened, and this swinging mode is also helpful for crushing the materials. When the reciprocating slide 415 drives the crushing half cylinder 600 to swing back and forth, the reciprocating slide 415 will also drive the piston block inside the inflation cylinder 410 to move through the transmission connecting rod 421, so as to inflate the pressure accumulator box 503, and the injected gas is ejected along the blowing hole 505, so as to perform a back-blowing operation on the screening hole 606, avoiding the problem of blockage. After the crushed material is discharged along the air selection channel 302, the exhaust gas of the filter component 300 will be ejected from the air buffer box 303, and the ejected air flow will blow toward the material falling in the air selection channel 302, thereby air selecting the material again, further improving the crushing quality.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environmentally friendly PET bottle flake crushing device, comprising a crushing box (100), wherein the upper end of the crushing box (100) is provided with a label removing component for removing labels from PET bottles, and the input end of the label removing component is connected to a driving shaft (407), characterized in that: The other end of the driving shaft (407) is connected to the output end of the driving motor group (400), and the driving motor group (400) is connected to the motor frame (401) outside the crushing box (100). A crushing component is provided inside the crushing box (100), and the crushing component comprises a crushing half cylinder (600). Screening holes (606) are distributed on the lower side of the crushing half cylinder (600). A crushing knife group is provided inside the crushing half cylinder (600). An arc-shaped wrapping plate (502) is provided on both sides of the crushing half cylinder (600). A guide V-plate (501) is provided at the upper end of the arc-shaped wrapping plate (502). The crushing half cylinder (600) is connected to a swinging component for driving the crushing half cylinder (600) to swing back and forth. A hole cleaning component for cleaning the screening holes (606) is provided on the inner wall of the crushing box (100).

2. The environmentally friendly PET bottle flake crushing device according to claim 1 is characterized in that: The swing assembly comprises a reciprocating shaft sleeve at the shaft end of the crushing half cylinder (600), the reciprocating shaft sleeve being rotatably connected to the crushing box (100), a reciprocating gear ring (419) being fixedly arranged on the outer side of the reciprocating shaft sleeve, the lower side of the reciprocating gear ring (419) being meshed with the reciprocating rack (414), the lower end of the reciprocating rack (414) being fixedly connected to the reciprocating slide seat (415), the cross section of the reciprocating slide seat (415) being T-shaped, the reciprocating slide seat (415) being slidably arranged on the guide sleeve seat (413), the guide sleeve seat (413) 13) is connected and fixed to the crushing box (100) via a positioning rod, one side of the reciprocating slide (415) is connected to the traction frame (412), a horizontally arranged transmission pin (420) is rotatably provided at the upper end of the traction frame (412), a driving disk (404) is fixedly provided on the driving shaft (407) where the transmission pin (420) is located, a guiding elliptical groove (405) is opened on the surface of the driving disk (404), and the end of the transmission pin (420) is inserted into the guiding elliptical groove (405).

3. The environmentally friendly PET bottle flake crushing device according to claim 2 is characterized in that: The hole cleaning assembly comprises a pressure accumulator box (503) arranged on the outside of the arc-shaped wrapping plate (502); the air inlet end of the pressure accumulator box (503) is connected to the air inlet duct (504); a plurality of air blowing holes (505) are distributed on the side of the pressure accumulator box (503) facing the crushing half cylinder (600); the outer end of the air inlet duct (504) is connected to the air charging duct (416); the other end of the air charging duct (416) is connected to the one-way exhaust end of the air charging cylinder (410); a one-way air inlet nozzle is also provided at the end of the air charging cylinder (410); a piston block is provided inside the air charging cylinder (410); a piston rod on the piston block is connected to the end of the reciprocating slide seat (415) via a transmission connecting rod (421); and the air charging cylinder (410) is fixedly connected to the outside of the crushing box (100).

4. The environmentally friendly PET bottle flake crushing device according to claim 1 is characterized in that: The pulverizing blade assembly comprises a pulverizing shaft (604) arranged at an axial position of a pulverizing half-cylinder (600); a plurality of second pulverizing blades (605) are distributed outside the pulverizing shaft (604); rotating disks (603) are rotatably provided inside both ends of the pulverizing half-cylinder (600); a plurality of pulverizing frames (602) are arranged between the two rotating disks (603); a plurality of first pulverizing blades (601) are distributed inside the pulverizing frames (602); the first pulverizing blades (601) and the second pulverizing blades (605) are staggered; and the rotating disk (603) and the pulverizing shaft (604) are connected to a pulverizing driving member for driving the pulverizing shaft (604) to rotate in the opposite direction.

5. The environmentally friendly PET bottle flake crushing device according to claim 4 is characterized in that: The pulverizing drive member comprises a forward rotating shaft (417) rotatably arranged at the axis position of the pulverizing shaft (604); a fourth bevel gear (409) is fixedly arranged at the outer end of the forward rotating shaft (417); the inner end of the forward rotating shaft (417) is fixedly connected to the rotating disk (603); the outer end of the pulverizing shaft (604) is connected to the reverse shaft (418); a fifth bevel gear (411) is arranged at the end of the reverse shaft (418); the upper sides of the fourth bevel gear (409) and the fifth bevel gear (411) are meshed with the third bevel gear (408); the third bevel gear (408) is arranged at the lower end of a vertical transmission shaft (402); the vertical transmission shaft (402) is rotatably arranged on the motor frame (401); a first bevel gear (403) is fixedly arranged at the upper end of the vertical transmission shaft (402); a second bevel gear (406) is arranged on the drive shaft (407); the second bevel gear (406) and the first bevel gear (403) are meshed with each other.

6. The environmentally friendly PET bottle flake crushing device according to claim 1, characterized in that: The label-removing component comprises a feeding cylinder (201), a separation roller (207) is provided inside the feeding cylinder (201), a plurality of separation blades (208) for pushing materials are distributed on the outside of the separation roller (207), and separation protrusions (209) for scraping labels off the surface of the PET bottle body are distributed on the surface of the separation blades (208), both ends of the separation roller (207) are rotatably connected to the feeding cylinder (201), the input end of the separation roller (207) is fixedly connected to the end of the driving shaft (407), a feeding hopper (202) for feeding materials is provided at the upper end of the feeding cylinder (201), a guide pipe (203) communicating with a feeding port at the upper end of a crushing box (100) is provided at the lower side of the feeding cylinder (201), and a negative pressure component for sucking away the separated labels is provided at the end of the feeding cylinder (201).

7. The environmentally friendly PET bottle flake crushing device according to claim 6, characterized in that: The negative pressure component comprises a negative pressure buffer box (205) connected to an exhaust end at the upper end of the feeding cylinder (201); an exhaust fan (204) is provided at the upper end of the negative pressure buffer box (205); the exhaust end of the exhaust fan (204) is connected to an exhaust port of the negative pressure buffer box (205); the exhaust end of the exhaust fan (204) is connected to an exhaust duct (206); the other end of the exhaust duct (206) is connected to a filter component (300) for separating labels.

8. The environmentally friendly PET bottle flake crushing device according to claim 7, characterized in that: The filtering component (300) comprises a separation cylinder (304) connected to the lower end of the exhaust duct (206); a slag discharge channel (308) arranged obliquely is connected to the impurity discharge port (305) at the lower side of the separation cylinder (304); two sockets are provided at the upper end of the slag discharge channel (308); a second gate plate (307) and a first gate plate (306) are respectively provided in the two sockets; a through hole (309) is provided at the center of the bottom of the separation cylinder (304); A conical cylinder (313) is fixedly provided, and filter holes (312) for screening labels are distributed on the outside of the conical cylinder (313). A rotating sleeve (314) is rotatably provided on the upper end of the conical cylinder (313), and a rejection shaft (311) is provided on the rotating sleeve (314). A fan blade (310) is fixedly provided on the lower end of the rejection shaft (311), and a scraper plate (315) is connected to the upper end of the rejection shaft (311), and the scraper plate (315) matches the outer side of the conical cylinder (313).

9. The environmentally friendly PET bottle flake crushing device according to claim 7, characterized in that: An air selection channel (302) is provided at the bottom discharge position of the pulverizing box (100), and an air blowing buffer box (303) is provided on one side of the air selection channel (302). The air inlet end of the air blowing buffer box (303) is connected to the exhaust end of the filter component (300) through an air supply pipe (301), that is, it is connected to the bottom of the through hole (309). The surface of the air blowing buffer box (303) is provided with air holes for blowing air toward the inside of the air selection channel (302), and the other side of the air selection channel (302) opposite to the air blowing buffer box (303) is provided with an exhaust port (316) for slag discharge, and a plurality of exhaust grids (317) are distributed on the exhaust port (316).

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