Waste recovery device for plastic processing and use method thereof

Abstract

The invention discloses a waste recovery device for plastic processing and a use method thereof, the waste recovery device is applied to the technical field of plastic waste recovery, a pre-crushing-secondary crushing-re-crushing multi-stage crushing system is constructed through a multi-stage crushing structure and a sorting crushing structure, latticed sawtooth crushing teeth of a pre-crushing cavity are matched with a pressing assembly, and the crushing efficiency is improved. The waste materials are subjected to preliminary multi-directional extrusion shearing; a large-diameter crushing roller and a small-diameter crushing roller in the secondary crushing assembly rotate at a differential speed to generate tearing force for further refining and crushing; spiral blades of the re-crushing assembly cooperate with fixed teeth to treat the sorted and intercepted large-size materials again, the multi-stage progressive crushing mode can adapt to plastic waste materials with different hardness and forms, and compared with traditional single-stage crushing, the crushing efficiency and uniformity are greatly improved, material residues which are not crushed or are not fully crushed are reduced, and the service life of the plastic waste materials is prolonged. And the quality of recycled materials is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of plastic waste recycling, and in particular relates to a plastic processing waste recycling device and a use method thereof. Background Art

[0002] In the plastics processing industry, waste recycling is a key link in achieving resource recycling and environmental protection.

[0003] Existing plastic waste recycling equipment mostly uses a single-stage crushing structure, processing waste through only a single crushing method (such as extrusion or shearing). This makes it difficult to adapt to waste of different hardness (hard plastics such as PET and soft plastics such as PE). Hard block waste often leaves large pieces of material due to insufficient single crushing force, while soft block waste easily entangles the crushing roller, causing equipment shutdown and cleaning, resulting in low overall crushing efficiency.

[0004] In addition, the sorting and crushing stages of traditional equipment are independent of each other, requiring manual labor or additional power equipment to screen waste specifications and return unqualified materials, resulting in a lengthy process. Summary of the Invention

[0005] The purpose of the present invention is to target an existing waste recycling device for plastic processing. Its advantage is that a multi-stage crushing system of pre-crushing-secondary crushing-re-crushing is constructed through a multi-stage crushing structure and a sorting and crushing structure. The grid-shaped serrated crushing teeth in the pre-crushing chamber cooperate with the down-pressing component to perform preliminary multi-directional extrusion and shearing on the waste; the large and small diameter crushing rollers in the secondary crushing component rotate at differential speeds to generate tearing force for further refined crushing; the spiral blades and fixed teeth of the re-crushing component cooperate to re-process the large-sized materials intercepted by sorting. This multi-stage progressive crushing method can adapt to plastic waste of different hardness and shapes. Compared with traditional single-stage crushing, it greatly improves the crushing efficiency and uniformity, reduces the residual uncrushed or inadequately crushed materials, and improves the quality of recycled materials.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A waste recycling device for plastic processing, comprising a processing box, a collection box provided at the bottom of the processing box, a multi-stage crushing structure provided inside the processing box, and a sorting and crushing structure provided at the bottom of the multi-stage crushing structure, the sorting and crushing structure being connected to the multi-stage crushing structure, and a feed channel bolted to both sides of the top of the processing box, and the feed channel being connected to the multi-stage crushing structure on the side close to the multi-stage crushing structure;

[0007] The multi-stage crushing structure includes a pre-crushing chamber, which is bolted to the top of the inside of the processing box, and baffles are slidably connected on both sides of the inside of the pre-crushing chamber. A pressure plate is provided on the top of the pre-crushing chamber, and the bottom of the pressure plate and the bottom of the inner wall of the pre-crushing chamber are bolted with crushing teeth. A downward pressure assembly is provided on the top of the pressure plate, and guide plates are provided on both sides of the bottom of the pre-crushing chamber, and the side of the guide plate close to the inner wall of the processing box is bolted to it, and a secondary crushing assembly is provided between the two guide plates.

[0008] By adopting the above technical solution, a multi-stage crushing structure is set up, and the coordinated design of the pre-crushing chamber and the secondary crushing component is used to form a two-stage progressive crushing system of coarse crushing and fine crushing, which significantly improves the crushing efficiency and adaptability. Driven by the lower pressure component, the pressure plate can move up and down, and the crushing teeth can extrude and shear the material in multiple directions to achieve a coarse crushing effect, while the secondary crushing component realizes differential rotation, and the linear speed difference generates a strong tearing force, which realizes efficient crushing of grabbing-tearing-refining for plastics of different hardness, and is especially suitable for the processing of tough plastics.

[0009] The present invention is further configured as follows: the downward pressure assembly includes two supports, the supports are bolted to the front and rear sides of the top of the processing box body, the opposite sides of the two supports are rotatably connected to the shaft rods, the opposite sides of the two shaft rods are bolted to the support plates, and the top between the opposite sides of the two support plates is bolted to the support rod, the surface of the support rod is rotatably sleeved with a connecting plate, and the bottom of the connecting plate is rotatably connected to the pressure plate.

[0010] By adopting the above technical solution, a downward pressure component is set up, and an external power source (such as a motor driven by a belt or chain) drives the shaft on the support to rotate. The rotation of the shaft drives the support plate to move in a circular motion around the shaft. The support plate drives the connecting plate to move through the support rod. Since the connecting plate is rotatably connected to the support rod and rotatably connected to the pressure plate, the connecting plate converts the movement of the support rod into an up and down reciprocating linear motion of the pressure plate, thereby realizing the extrusion and crushing operation of the waste, and ensuring that the pressure plate can continuously and stably apply crushing force to the waste.

[0011] The present invention is further configured as follows: a plurality of crushing teeth are arranged in a grid shape as a whole, the opposite sides of two crushing teeth are arranged in a serrated shape, and a plurality of leakage holes are opened at the bottom of the pre-crushing chamber, and the leakage holes are located between adjacent crushing teeth.

[0012] By adopting the above technical solution, the waste can be crushed from multiple directions through the grid-shaped and serrated crushing tooth design, which greatly improves the comprehensiveness and efficiency of crushing. The setting of the leakage hole realizes the preliminary screening function, automatically separating the materials with qualified particle size, avoiding excessive crushing of these materials in the pre-crushing chamber, reducing energy consumption, and also improving the overall processing efficiency.

[0013] The present invention is further configured as follows: the side of the baffle close to the pressure plate is bolted to the baffle, the front and rear sides of the baffle are provided with protrusions, and the protrusions are slidably arranged inside the crushing chamber, the bottom of the baffle is provided with a cutting block, and both sides of the bottom of the inner wall of the pre-crushing chamber are provided with cutting grooves for use with the cutting block.

[0014] The camming mechanism of the present invention is to move the material into and out of the crushing chamber so that the material can be crushed to the desired size by moving the camming member forward and backward, thereby preventing the material from being crushed to the desired size.

[0015] The present invention is further configured as follows: the secondary crushing assembly includes a large-diameter crushing roller and a small-diameter crushing roller, the surfaces of the large-diameter crushing roller and the small-diameter crushing roller are both welded with a plurality of groups of cutting teeth in a ring shape, the front sides of the large-diameter crushing roller and the small-diameter crushing roller are bolted with a connecting shaft, and the front side of the connecting shaft extends to the front side of the processing box, the front side of the processing box is bolted with a protective shell, and the bottom inside the protective shell is rotatably connected to a screw rod, the surface of the screw rod is threadedly connected to a screw block, the left connecting shaft is rotatably connected to the screw block through a bearing seat, a guide rod passes through the top of the inside of the screw block, and a fine-tuning spring is sleeved on the left side of the guide rod surface, the fine-tuning spring is connected to the protective shell and the screw block on the side close to the two, the surfaces of the two connecting shafts are respectively sleeved with a driving gear and a driven gear, and the driving gear is meshed with the driven gear.

[0016] The above technical solution is adopted, by setting up a secondary crushing assembly, an external power source drives the driving gear to rotate, and the driving gear drives the large-diameter crushing roller and the small-diameter crushing roller to rotate in opposite directions at different speeds (the large-diameter roller rotates slower, and the small-diameter roller rotates faster) through meshing with the driven gear. The waste falling from the pre-crushing chamber through the guide plate enters between the two crushing rollers and is further crushed under the tearing, squeezing and shearing action of the cutting teeth. When encountering waste or foreign matter with greater hardness, the reaction force generated by the waste on the large-diameter crushing roller overcomes the elastic force of the fine-tuning spring, and moves slightly laterally along the guide rod, increasing the distance between the two crushing rollers. Spacing to avoid damage to the equipment due to overload. In addition, the screw position can be manually adjusted by rotating the screw to change the initial spacing between the two crushing rollers to adapt to waste materials of different hardness and specifications. The differential rotation design of the large and small diameter crushing rollers generates a strong tearing force, which can efficiently crush plastic waste of various hardness, especially for waste materials with strong toughness. The combination of screw-screw-fine-tuning spring realizes manual adjustment and automatic adaptive adjustment of the crushing spacing, which can not only pre-set the appropriate spacing according to the characteristics of the waste, but also automatically protect the equipment when encountering abnormal situations, thereby improving the applicability and reliability of the equipment.

[0017] The present invention is further configured as follows: the cutting surfaces of the cutting teeth on both sides are arranged opposite to each other, and the driving gear and the driven gear are respectively composed of a rigid gear and an elastic gear.

[0018] By adopting the above technical solution, the cutting teeth are arranged relative to each other, which enhances the tearing and cutting effect of the waste, enables the waste to be crushed more fully, and improves the crushing quality. The combination of rigid gears and elastic gears, while ensuring stable transmission, gives the transmission system good impact resistance, effectively protects the gears and other transmission components, extends the service life of the equipment, and reduces equipment failures and maintenance frequency.

[0019] The present invention is further configured as follows: the sorting and crushing structure includes two sorting plates, and a re-crushing assembly is bolted between the opposite sides of the two sorting plates. Flexible connection parts are provided on both sides of the sorting plates. The sorting plates are connected to the processing box and the re-crushing assembly respectively near the flexible connection parts. The front and rear sides of the top of the sorting plates are rotatably connected to connecting rods, and the other end of the connecting rod is rotatably connected to a follower plate. The top of the follower plate is bolted to a connecting frame, and the connecting frame is bolted to the pressure plate.

[0020] The above technical solution is adopted, by setting up a sorting and crushing structure, the pressure plate drives the follower plate to move through the connecting frame during the up and down movement, and the follower plate rotates around the flexible connection part connected to the processing box through the connecting rod. When the pressure plate moves downward for pre-crushing, the two ends of the sorting plate tilt downward to form an inclined surface with a high middle and low sides. The waste falling from the secondary crushing component slides along the inclined surface of the sorting plate under the action of gravity. The waste that meets the specifications (smaller particle size) passes through the sorting plate and falls into the collection box below, and the waste that does not meet the specifications (larger particle size) is intercepted. When the pressure plate moves upward, the two ends of the sorting plate are lifted up to form a V-shape with a low middle and high sides. The intercepted large-size materials are separated by gravity and the inclined surface. The crushed material is screened by the sorting plates again, and the qualified material falls into the collecting box. The sorting and crushing structure and the multi-stage crushing structure realize the integration of sorting and crushing through mechanical linkage. No additional power device and complex control system are required. The sorting plate can be driven to work only by the movement of the pressure plate, which simplifies the equipment structure and reduces the cost. At the same time, this design realizes the automatic sorting of waste materials and the automatic return and re-crushing of unqualified materials, improves the automation degree and processing efficiency of waste recycling, ensures the consistency of the specifications of the final recycled materials, and the up and down reciprocating motion of the sorting plate also speeds up the sorting efficiency of waste materials and avoids blockage.

[0021] The present invention is further configured as follows: the re-crushing assembly includes a fixed cylinder, a feed notch is opened on the top of the fixed cylinder, and the interior of the fixed cylinder is rotatably connected to a main shaft, a spiral blade is welded on the surface of the main shaft, and the inner wall of the fixed cylinder is annularly welded with fixed teeth used in conjunction with the spiral blade, the interior of the fixed cylinder is rotatably connected to a baffle plate, and the top of the baffle plate is bolted to a fixed plate, and the top of the fixed plate is bolted to the main shaft.

[0022] The above technical solution is adopted, by setting a re-crushing component, when the sorting plate is lifted to form a V shape, the intercepted large-sized materials enter the fixed barrel from the feed gap, and the external power source drives the main shaft to rotate, and the main shaft drives the spiral blade and the fixed plate to rotate synchronously. When the fixed plate rotates, it drives the baffle plate to rotate, opening the discharge channel at the bottom of the fixed barrel. During the rotation process, the spiral blade, on the one hand, pushes the material along the axial direction of the fixed barrel, and on the other hand, cooperates with the fixed teeth on the inner wall of the fixed barrel to squeeze, shear and crush the material. The crushed material is pushed out of the fixed barrel through the opened discharge channel under the push of the spiral blade. The coordinated design of the spiral blade and the fixed teeth of the re-crushing component realizes continuous crushing of large-sized materials. Compared with the traditional intermittent crushing method, the crushing efficiency is greatly improved. The linkage control of the main shaft and the baffle plate makes the movement of the baffle plate and the pressure plate move at the same frequency, ensuring that the gap is opened when feeding to allow large-sized materials to enter the fixed barrel, and the fixed barrel is closed when not feeding to prevent small materials from entering the fixed barrel, ensuring the crushing quality, effectively solving the problem of re-processing of unqualified materials, and improving the processing effect of the entire waste recycling device.

[0023] The present invention is further configured as follows: a feeding hole is provided on the front side of the bottom of the fixed cylinder, a limiting channel is provided inside the fixed cylinder, and the material stopper is located inside the limiting channel.

[0024] By adopting the above technical solution, the setting of the limit channel provides a stable movement track for the baffle plate, ensuring the accuracy and reliability of the baffle plate's movement, thereby affecting the crushing and screening effects. By precisely controlling the opening and closing of the discharge hole, it is ensured that the material has sufficient crushing time in the fixed barrel, thereby improving the crushing quality and ensuring the quality of the final recycled material.

[0025] A method for using a plastic processing waste recovery device comprises the following steps:

[0026] S1. Waste generated during plastic processing enters the pre-crushing chamber through the feed channel. Simultaneously, the down-pressing assembly drives the pressure plate to reciprocate up and down, driving the baffle to close or open the pre-crushing chamber to prevent overfeed. The movement of the pressure plate causes the crushing teeth to perform preliminary crushing on the waste. The crushed waste then enters the secondary crushing assembly through the guide plate for processing.

[0027] S2. After being crushed by the secondary crushing assembly, the waste material falls onto the sorting and crushing structure. As the pressure plate moves downward, the ends of the sorting and crushing structure tilt downward, and the baffle plate closes the fixed cylinder. As a result, the secondary crushed waste material moves along the inclined surface of the sorting and crushing structure, allowing waste material that meets the specified specifications to pass through the sorting and crushing structure and fall into the collection box, while waste material that does not meet the specified specifications is retained.

[0028] S3. When the pressure plate rises, it will simultaneously drive the two ends of the sorting and crushing structure to tilt upward, making them V-shaped. At the same time, the baffle plate releases the interior of the fixed cylinder. The intercepted large-sized materials enter the re-crushing component under the action of gravity and the inclined surface for crushing, and finally enter the aggregate box.

[0029] In summary, the present invention has the following beneficial effects:

[0030] 1. By setting up a multi-stage crushing structure and the coordinated design of the pre-crushing chamber and the secondary crushing component, a two-stage progressive crushing system of coarse crushing and fine crushing is formed, which significantly improves the crushing efficiency and adaptability. Driven by the lower pressure component, the pressure plate can be reciprocated up and down, and the crushing teeth can squeeze and shear the material in multiple directions to achieve a coarse crushing effect. The secondary crushing component realizes differential rotation, and the linear speed difference generates a strong tearing force, which realizes efficient crushing of plastics of different hardness by grabbing, tearing and refining, and is especially suitable for processing tough plastics.

[0031] 2. By setting up a sorting and crushing structure, the sorting plate is connected to the pressure plate through a connecting rod. The up and down movement of the pressure plate directly drives the change of the sorting plate's inclination angle. When the pressure plate is pressed down, the sorting plate opens in a V shape to promote the passage of fine materials; when the pressure plate rises, the sorting plate closes to form a funnel shape, guiding the coarse materials into the re-crushing component. No additional power source is required. The main shaft of the re-crushing component drives the spiral blade to rotate, forming shear crushing with the fixed teeth on the inner wall of the fixed barrel. The propulsion action of the spiral blade causes the material to move toward the discharge port at the same time during the crushing process, realizing continuous processing and avoiding the efficiency loss of traditional intermittent crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the connection between the processing box, the multi-stage crushing structure and the sorting crushing structure of the present invention;

[0034] Figure 3 This is a schematic diagram of the connection between the pressing assembly and the pressing plate of the present invention;

[0035] Figure 4 It is a schematic structural diagram of the secondary crushing assembly of the present invention;

[0036] Figure 5 It is a schematic structural diagram of the re-crushing assembly of the present invention;

[0037] Figure 6 This is a schematic diagram of the connection between the sorting plate and the pressing plate of the present invention;

[0038] Figure 7 The present invention is a flowchart of a method for using the plastic processing waste recovery device.

[0039] Reference numerals: 1, processing box; 2, collection box; 3, multi-stage crushing structure; 31, pre-crushing chamber; 32, baffle; 33, pressure plate; 34, pressing assembly; 341, support; 342, shaft; 343, support plate; 344, support rod; 345, connecting plate; 35, guide plate; 36, secondary crushing assembly; 361, large diameter crushing roller; 362, small diameter crushing roller; 363, cutting teeth; 364, connecting shaft; 365, screw rod; 366 , screw block; 367, guide rod; 368, fine-tuning spring; 369, driving gear; 36a, driven gear; 37, crushing teeth; 4, sorting and crushing structure; 41, sorting plate; 42, re-crushing assembly; 421, fixed cylinder; 422, main shaft; 423, spiral blade; 424, fixed teeth; 425, baffle plate; 426, fixed plate; 43, flexible connection part; 44, connecting rod; 45, follower plate; 46, connecting frame; 5, cutting block; 6, feeding hole. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] Example 1:

[0042] refer to Figure 1-4 A plastic processing waste recycling device includes a processing box 1, a collection box 2 is provided at the bottom of the processing box 1, a multi-stage crushing structure 3 is provided inside the processing box 1, and a sorting and crushing structure 4 is provided at the bottom of the multi-stage crushing structure 3, the sorting and crushing structure 4 is connected to the multi-stage crushing structure 3, and feeding channels are bolted on both sides of the top of the processing box 1, and the feeding channels are connected to the multi-stage crushing structure 3 on the side close to the multi-stage crushing structure 3;

[0043] The multi-stage crushing structure 3 includes a pre-crushing chamber 31, which is bolted to the top of the processing box 1, and baffles 32 are slidably connected on both sides of the pre-crushing chamber 31. A pressure plate 33 is provided on the top of the pre-crushing chamber 31, and the bottom of the pressure plate 33 and the bottom of the inner wall of the pre-crushing chamber 31 are bolted with crushing teeth 37. A down-pressing assembly 34 is provided on the top of the pressure plate 33. Guide plates 35 are provided on both sides of the bottom of the pre-crushing chamber 31, and the guide plates 35 are bolted to the inner wall of the processing box 1 on one side, and a secondary crushing plate 35 is provided between the two guide plates 35. Component 36, by setting up a multi-stage crushing structure 3, through the coordinated design of the pre-crushing chamber 31 and the secondary crushing component 36, forms a two-stage progressive crushing system of coarse crushing and fine crushing, which significantly improves the crushing efficiency and adaptability. Driven by the lower pressure component 34, the pressure plate 33 can be reciprocated up and down, and the crushing teeth 37 can perform multi-directional extrusion and shearing on the material to achieve a coarse crushing effect, while the secondary crushing component 36 realizes differential rotation, and the linear speed difference generates a strong tearing force, which realizes efficient crushing of grabbing-tearing-refining for plastics of different hardness, and is particularly suitable for the processing of tough plastics.

[0044] like Figure 3 As shown, the pressing assembly 34 includes two supports 341, the supports 341 are bolted to the front and rear sides of the top of the processing box 1, the two supports 341 are rotatably connected to the opposite sides of the shaft 342, the two shafts 342 are bolted to the opposite sides of the support plates 343, and the top between the opposite sides of the two support plates 343 is bolted to a support rod 344, the surface of the support rod 344 is rotatably sleeved with a connecting plate 345, and the bottom of the connecting plate 345 is rotatably connected to the pressing plate 33. By setting the pressing assembly 34, an external power source (such as a motor) The shaft 342 on the support 341 is driven by a belt or chain (transmission), and the rotation of the shaft 342 drives the support plate 343 to make a circular motion around the shaft 342. The support plate 343 drives the connecting plate 345 to move through the support rod 344. Since the connecting plate 345 is rotatably connected to the support rod 344 and rotatably connected to the pressure plate 33, the connecting plate 345 converts the movement of the support rod 344 into an up and down reciprocating linear motion of the pressure plate 33, thereby realizing the extrusion and crushing operation of the waste, and ensuring that the pressure plate 33 can continuously and stably apply crushing force to the waste.

[0045] like Figure 3 As shown, several crushing teeth 37 are arranged in a grid shape as a whole, and the opposite sides of two crushing teeth 37 are serrated. A number of leakage holes are opened at the bottom of the pre-crushing chamber 31, and the leakage holes are located between adjacent crushing teeth 37. Through the grid-shaped and serrated crushing teeth 37 design, waste materials are crushed from multiple directions, which greatly improves the comprehensiveness and efficiency of crushing. The setting of the leakage holes realizes a preliminary screening function, automatically separates materials with qualified particle size, avoids excessive crushing of these materials in the pre-crushing chamber 31, reduces energy consumption, and also improves the overall processing efficiency.

[0046] like Figure 3As shown, the baffle 32 is bolted to the pressure plate 33 on one side thereof, and projections are provided on the front and rear sides of the baffle 32, and the projections are slidingly arranged inside the crushing chamber, and a cut block 5 is provided at the bottom of the baffle 32, and grooves are provided on both sides of the bottom of the inner wall of the pre-crushing chamber 31 for use with its cut block 5. When the pressure plate 33 moves downward under the drive of the pressing assembly 34, the baffle 32 bolted to the pressure plate 33 slides downward synchronously, and the projections on the front and rear sides of the baffle 32 ensure the stability of sliding under the guiding action of the inner wall of the pre-crushing chamber 31. When the baffle 32 slides to the bottom, the cut block 5 at the bottom of the baffle 32 is embedded in the groove at the bottom of the inner wall of the pre-crushing chamber 31, which not only seals the The feed channels on both sides of the pre-crushing chamber 31 are closed to prevent new waste from entering. At the same time, the cooperation of the cutting block 5 and the cutting groove can also perform additional cutting and crushing on the waste near the baffle 32. When the pressure plate 33 moves upward, the baffle 32 rises accordingly, opening the feed channel and allowing new waste to enter the pre-crushing chamber 31. The linkage design of the baffle 32 and the pressure plate 33 realizes automatic control of the feed, effectively avoiding blockage in the pre-crushing chamber 31 due to excessive feed, ensuring the smooth progress of the crushing process, and the cooperation of the cutting block 5 and the cutting groove further enhances the crushing effect of the waste, especially for secondary processing of the waste that is easy to remain near the baffle 32, thereby improving the quality and efficiency of the pre-crushing.

[0047] like Figure 4As shown, the secondary crushing assembly 36 includes a large diameter crushing roller 361 and a small diameter crushing roller 362. The surfaces of the large diameter crushing roller 361 and the small diameter crushing roller 362 are annularly welded with a plurality of groups of cutting teeth 363. The front sides of the large diameter crushing roller 361 and the small diameter crushing roller 362 are bolted with a connecting shaft 364, and the front side of the connecting shaft 364 extends to the front side of the processing box 1. The front side of the processing box 1 is bolted with a protective shell, and the bottom of the protective shell is rotatably connected to a screw rod 365. The surface of the screw rod 365 is threadedly connected to a screw block 366. The left connecting shaft 364 is connected through the shaft The support is rotatably connected to the screw block 366, and a guide rod 367 is passed through the top of the screw block 366, and a fine-tuning spring 368 is sleeved on the left side of the surface of the guide rod 367. The fine-tuning spring 368 is connected to the side of the protective shell and the screw block 366 respectively. The surfaces of the two connecting shafts 364 are respectively sleeved with a driving gear 369 and a driven gear 36a. The driving gear 369 is meshed with the driven gear 36a. By setting the secondary crushing assembly 36, an external power source drives the driving gear 369 to rotate, and the driving gear 369 drives the large-diameter crusher by meshing with the driven gear 36a. The crushing roller 361 and the small diameter crushing roller 362 rotate in opposite directions at different speeds (the large diameter roller rotates slower, and the small diameter roller rotates faster). The waste material falling from the pre-crushing chamber 31 through the guide plate 35 enters between the two crushing rollers and is further crushed by the tearing, squeezing and shearing action of the cutting teeth 363. When encountering waste material or foreign matter with greater hardness, the reaction force generated by the waste material on the large diameter crushing roller 361 overcomes the elastic force of the fine-tuning spring 368, and moves slightly laterally along the guide rod 367, thereby increasing the distance between the two crushing rollers and preventing the equipment from being damaged due to overload. In addition, by rotating The screw 365 can be used to manually adjust the position of the screw block 366, changing the initial spacing between the two crushing rollers to accommodate waste materials of different hardness and specifications. The differential rotation design of the large and small diameter crushing rollers generates a powerful tearing force, which can efficiently crush plastic waste of various hardnesses, especially those with strong toughness. The combination of the screw, screw block and fine-tuning spring realizes manual adjustment and automatic adaptive adjustment of the crushing spacing. It can not only pre-set the appropriate spacing according to the characteristics of the waste, but also automatically protect the equipment in the event of abnormal conditions, thereby improving the applicability and reliability of the equipment.

[0048] like Figure 4 As shown, the cutting surfaces of the cutting teeth 363 on both sides are arranged relative to each other, and the driving gear 369 and the driven gear 36a are respectively composed of a rigid gear and an elastic gear. The relative arrangement of the cutting teeth 363 enhances the tearing and cutting effects on the waste, so that the waste can be more fully crushed and the crushing quality is improved. The combination of the rigid gear and the elastic gear not only ensures stable transmission, but also gives the transmission system good impact resistance, effectively protects the gears and other transmission components, extends the service life of the equipment, and reduces equipment failures and maintenance frequency.

[0049] Briefly describe the use process: plastic waste through the processing box 1 top two sides of the feed channel into the pre-crushing cavity 31, the shaft 342 in the lower compression assembly 34 driven by external power (such as motor through the belt or chain) starts to rotate, drive the branch plate 343 around the shaft 342 do circular motion, the branch plate 343 through the support rod 344 drive connecting plate 345 movement, because the connecting plate 345 and support rod 344 rotating sleeve, with the pressing plate 33 rotating connection, ultimately make the pressing plate 33 up and down reciprocating linear motion, when the pressing plate 33 downward motion, with its bolted baffle 32 synchronous down, baffle 32 front and rear side of the convex along the pre-crushing cavity 31 wall sliding, ensure the stability of sliding, when the baffle 32 down to the bottom, its bottom cutting block 5 embedded in the pre-crushing cavity 31 wall bottom cutting groove, close the feed channel, prevent new waste into, at the same time, the pressing plate 33 bottom grid and sawtooth edge of the broken teeth 37 and pre-crushing cavity 31 wall bottom broken teeth 37 interlaced, on the waste for multi-directional extrusion and shear, increase the contact area and friction, the waste preliminary broken into small pieces, meet the particle size requirements of material through the pre-crushing cavity 31 bottom adjacent broken teeth 37 between the leakage hole down, not up to standard continue to stay in the cavity for subsequent crushing; through the pre-crushing and leakage hole of waste, under the guidance of guide plate 35 into the secondary crushing assembly 36, external power drive drive gear 369 rotation, through the meshing with the driven gear 36a, drive the large diameter broken roller 361 and small diameter broken roller 362 with different speed reverse rotation (large diameter roller speed slow, small diameter roller speed fast), when the waste into the two rollers, surface ring welding of multiple groups of cutting teeth 363 arranged opposite, tear, extrude and shear the waste, if the hard waste or foreign matter, the reaction force of the waste on the large diameter broken roller 361 make the screw block 366 overcome the elastic force of the fine adjustment spring 368, along the guide rod 367 transverse micro shift, increase the distance between the two rollers, after the secondary crushing of waste falls on the sorting and crushing structure 4.

[0050] Example 2:

[0051] Reference Figure 2 、 5-6, including a processing box 1, a collection box 2 is provided at the bottom of the processing box 1, a multi-stage crushing structure 3 is provided inside the processing box 1, and a sorting crushing structure 4 is provided at the bottom of the multi-stage crushing structure 3, the sorting crushing structure 4 is connected to the multi-stage crushing structure 3, and both sides of the top of the processing box 1 are bolted with a feed channel, and the feed channel is connected to the side close to the multi-stage crushing structure 3. By setting the sorting crushing structure 4, the sorting plate 41 is connected to the pressing plate 33 through the connecting rod 44, and the up and down movement of the pressing plate 33 directly drives the sorting plate The inclination angle of 41 changes. When the pressure plate 33 is pressed down, the sorting plate 41 opens in a V shape to promote the passage of fine materials. When the pressure plate 33 rises, the sorting plate 41 closes to form a funnel shape, guiding the coarse materials into the re-crushing component 42. No additional power source is required. The main shaft 422 of the re-crushing component 42 drives the spiral blade 423 to rotate, forming shear crushing with the fixed teeth 424 on the inner wall of the fixed cylinder 421. The propulsion action of the spiral blade 423 causes the material to move toward the discharge port at the same time during the crushing process, realizing continuous processing and avoiding the efficiency loss of traditional intermittent crushing.

[0052] like Figure 2 、 6As shown, the sorting and crushing structure 4 includes two sorting plates 41, and a re-crushing component 42 is bolted between the opposite sides of the two sorting plates 41. Flexible connecting parts 43 are provided on both sides of the sorting plates 41. The sorting plates 41 are connected to the processing box 1 and the re-crushing component 42 respectively near the flexible connecting parts 43. The front and rear sides of the top of the sorting plate 41 are rotatably connected to the connecting rod 44, and the other end of the connecting rod 44 is rotatably connected to the follower plate 45. The top of the follower plate 45 is bolted to a connecting frame 46, and the connecting frame 46 is connected to the pressure plate 3. 3 bolted, by setting the sorting and crushing structure 4, the pressure plate 33 drives the follower plate 45 to move through the connecting frame 46 during the up and down movement, and the follower plate 45 causes the sorting plate 41 to rotate around the flexible connection part 43 connected to the processing box 1 through the connecting rod 44. When the pressure plate 33 moves downward for pre-crushing, the two ends of the sorting plate 41 tilt downward to form an inclined surface with a high middle and low sides. The waste falling from the secondary crushing assembly 36 slides along the inclined surface of the sorting plate 41 under the action of gravity, and the waste that meets the specifications (smaller particle size) The waste passes through the sorting plate 41 and falls into the collecting box 2 below, and the waste that does not meet the specifications (larger particle size) is intercepted. When the pressure plate 33 moves upward, the two ends of the sorting plate 41 are lifted up to form a V-shape with a low middle and high two sides. The intercepted large-sized materials enter the re-crushing component 42 located between the two sorting plates 41 under the action of gravity and the inclined surface for re-crushing. The crushed materials are screened again by the sorting plate 41, and qualified materials fall into the collecting box 2. The sorting and crushing structure 4 and the multi-stage crushing structure 3 realize the integration of sorting and crushing through mechanical linkage. No additional power device and complex control system are required. The sorting plate 41 can be driven to work only by the movement of the pressure plate 33, which simplifies the equipment structure and reduces the cost. At the same time, this design realizes the automatic sorting of waste and the automatic reflux and re-crushing of unqualified materials, improves the automation degree and processing efficiency of waste recycling, ensures the consistency of specifications of the final recycled materials, and the up and down reciprocating movement of the sorting plate 41 also speeds up the sorting efficiency of waste and avoids blockage.

[0053] like Figure 5The top of the fixing plate 426 is bolted to the main shaft 422, and the top of the fixing plate 426 is bolted to the main shaft 422. The top of the fixing plate 426 is bolted to the main shaft 422. During the rotation process, on the one hand, the material is pushed axially along the fixed cylinder 421, and on the other hand, the fixed teeth 424 on the inner wall of the fixed cylinder 421 cooperate with each other to squeeze, shear and crush the material. The crushed material is pushed by the spiral blade 423 and discharged from the fixed cylinder 421 through the opened discharge channel. The coordinated design of the spiral blade 423 and the fixed teeth 424 of the crushing assembly 42 realizes the continuous crushing of large-sized materials. Compared with the traditional intermittent crushing method, the crushing efficiency is greatly improved. The main shaft 422 and the material baffle plate 425 are controlled in a linkage manner, and the movement of the material baffle plate 425 is synchronized with the movement of the pressure plate 33, ensuring that the gap is opened when feeding to allow large-sized materials to enter the fixed cylinder 421, and the fixed cylinder 421 is closed when not feeding to prevent small materials from entering the fixed cylinder 421, thereby ensuring the crushing quality, effectively solving the problem of re-processing of unqualified materials, and improving the processing effect of the entire waste recycling device.

[0054] like Figure 5 As shown, a discharge hole 6 is provided on the front side of the bottom of the fixed cylinder 421, and a limiting channel is provided inside the fixed cylinder 421. The material blocking is located inside the limiting channel. The setting of the limiting channel provides a stable movement track for the material blocking plate 425, thereby ensuring the accuracy and reliability of the movement of the material blocking plate 425, thereby affecting the crushing and screening effects. By precisely controlling the opening and closing of the discharge hole 6, it is ensured that the material has sufficient crushing time in the fixed cylinder 421, thereby improving the crushing quality and ensuring the quality of the final recycled material.

[0055] Brief description of the use process: during the up-down movement of the pressing plate 33, the following plate 45 is driven to move by the connecting frame 46, the following plate 45 drives the sorting plate 41 to rotate around the flexible connecting part 43 connected with the processing box 1 through the connecting rod 44, when the pressing plate 33 moves downward for pre-crushing, the two ends of the sorting plate 41 are inclined downward, forming an inclined surface with high middle and low sides, and at this time, the material blocking plate 425 closes the feeding gap, the waste falling from the secondary crushing assembly 36 slides along the inclined surface of the sorting plate 41 under the action of gravity, the waste with smaller particle size and meeting the specifications falls into the lower material collecting box 2 through the sorting plate 41, and the waste with larger particle size and not meeting the specifications is intercepted, when the pressing plate 33 moves upward, at this time, the material blocking plate 425 uncloses the feeding gap, the two ends of the sorting plate 41 are lifted upward, forming a V-shaped surface with low middle and high sides, at this time, the large-specification material intercepted enters the re-crushing assembly 42 from the feeding gap at the top of the fixed cylinder 421 of the re-crushing assembly 42, the main shaft 422 is driven to rotate by an external power, the main shaft 422 drives the spiral blade 423 to push the material axially along the fixed cylinder 421 in the rotating process, and the spiral blade 423 cooperates with the fixed tooth 424 on the inner wall of the fixed cylinder 421 to crush and shear the material, and the crushed material is pushed out of the fixed cylinder 421 through the discharging hole 6 and falls into the material collecting box 2 under the pushing of the spiral blade 423.

[0056] Example 3

[0057] The application also provides a use method of the waste recycling device for plastic processing, comprising the following steps:

[0058] S1. The waste generated in the plastic processing process enters the inside of the pre-crushing cavity 31 through the feeding channel, and the pressing plate 33 is driven to reciprocate up and down by the lower pressing assembly 34, and the baffle 32 is driven to close or open the channel of the pre-crushing cavity 31, so that the feeding is prevented from being too much, the movement of the pressing plate 33 causes the crushing teeth 37 to preliminarily crush the waste, and the crushed waste enters the secondary crushing assembly 36 through the guide plate 35 for processing;

[0059] S2. The waste crushed by the secondary crushing assembly 36 falls on the sorting and crushing structure 4, when the pressing plate 33 moves downward, the two ends of the sorting and crushing structure 4 are in a downward inclined state, and the material blocking plate 425 closes the fixed cylinder 421, so that the waste crushed secondarily moves along the inclined surface of the sorting and crushing structure 4, the waste meeting the specifications is allowed to fall into the material collecting box 2 through the sorting and crushing structure 4, and the waste not meeting the specifications is intercepted;

[0060] S3. When the pressing plate 33 rises, the two ends of the sorting and crushing structure 4 are inclined upward, so that the two ends are in a V-shaped state, and the material blocking plate 425 uncloses the inside of the fixed cylinder 421, and the large-specification material intercepted enters the re-crushing assembly 42 for crushing under the action of gravity and the inclined surface, and finally enters the material collecting box 2.

[0061] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A plastic processing waste recycling device, comprising a processing box (1), characterized in that: A collection box (2) is provided at the bottom of the processing box (1), a multi-stage crushing structure (3) is provided inside the processing box (1), and a sorting crushing structure (4) is provided at the bottom of the multi-stage crushing structure (3), and the sorting crushing structure (4) is connected to the multi-stage crushing structure (3), and both sides of the top of the processing box (1) are bolted with a feed channel, and the feed channel is connected to the multi-stage crushing structure (3) on the side close to the multi-stage crushing structure (3); The multi-stage crushing structure (3) includes a pre-crushing chamber (31), the pre-crushing chamber (31) is bolted to the top of the processing box (1), and baffles (32) are slidably connected on both sides of the pre-crushing chamber (31), a pressure plate (33) is provided on the top of the pre-crushing chamber (31), and the bottom of the pressure plate (33) and the bottom of the inner wall of the pre-crushing chamber (31) are bolted with crushing teeth (37), a lower pressure assembly (34) is provided on the top of the pressure plate (33), and guide plates (35) are provided on both sides of the bottom of the pre-crushing chamber (31), and the guide plates (35) are bolted to the inner wall of the processing box (1) on one side, and a secondary crushing assembly (36) is provided between the two guide plates (35).

2. A plastic processing waste recovery device according to claim 1, characterized in that: The pressing assembly (34) includes two supports (341), the supports (341) are bolted to the front and rear sides of the top of the processing box (1), the opposite sides of the two supports (341) are rotatably connected to the shaft (342), the opposite sides of the two shafts (342) are bolted to the support plates (343), and the top between the opposite sides of the two support plates (343) is bolted to a support rod (344), the surface of the support rod (344) is rotatably sleeved with a connecting plate (345), and the bottom of the connecting plate (345) is rotatably connected to the pressure plate (33).

3. The plastic processing waste recycling device according to claim 1, characterized in that: The plurality of crushing teeth (37) are arranged in a grid shape as a whole, and the opposite sides of two crushing teeth (37) are arranged in a sawtooth shape. The bottom of the pre-crushing chamber (31) is provided with a plurality of leakage holes, and the leakage holes are located between adjacent crushing teeth (37).

4. The plastic processing waste recycling device according to claim 1, characterized in that: The baffle (32) is bolted to the pressure plate (33) on one side thereof, and the front and rear sides of the baffle (32) are both provided with protrusions, and the protrusions are slidably arranged inside the crushing chamber. The bottom of the baffle (32) is provided with a cut block (5), and both sides of the bottom of the inner wall of the pre-crushing chamber (31) are provided with cutting grooves for use with the cut block (5).

5. The plastic processing waste recycling device according to claim 1, characterized in that: The secondary crushing assembly (36) comprises a large-diameter crushing roller (361) and a small-diameter crushing roller (362), the surfaces of the large-diameter crushing roller (361) and the small-diameter crushing roller (362) are both annularly welded with a plurality of groups of cutting teeth (363), the front sides of the large-diameter crushing roller (361) and the small-diameter crushing roller (362) are both bolted with a connecting shaft (364), and the front side of the connecting shaft (364) extends to the front side of the processing box (1), the front side of the processing box (1) is bolted with a protective shell, and the bottom of the protective shell is rotatably connected to a screw rod (365), and the screw rod ( The surface of the screw block (365) is threadedly connected with a screw block (366), and the left connecting shaft (364) is rotatably connected to the screw block (366) through a bearing seat. The top of the screw block (366) is penetrated by a guide rod (367), and the left side of the surface of the guide rod (367) is sleeved with a fine-tuning spring (368). The side of the fine-tuning spring (368) close to the protective shell and the screw block (366) is respectively connected to the two. The surfaces of the two connecting shafts (364) are respectively sleeved with a driving gear (369) and a driven gear (36a), and the driving gear (369) is meshed with the driven gear (36a).

6. The plastic processing waste recovery device according to claim 5, characterized in that: The cutting surfaces of the cutting teeth (363) on both sides are arranged opposite to each other, and the driving gear (369) and the driven gear (36a) are respectively composed of a rigid gear and an elastic gear.

7. The plastic processing waste recycling device according to claim 1, characterized in that: The sorting and crushing structure (4) includes two sorting plates (41), and a re-crushing assembly (42) is bolted between opposite sides of the two sorting plates (41). Flexible connecting parts (43) are provided on both sides of the sorting plates (41). The sorting plates (41) are respectively connected to the processing box (1) and the re-crushing assembly (42) near the flexible connecting parts (43). The front and rear sides of the top of the sorting plates (41) are rotatably connected to connecting rods (44), and the other end of the connecting rod (44) is rotatably connected to a follower plate (45). The top of the follower plate (45) is bolted to a connecting frame (46), and the connecting frame (46) is bolted to the pressure plate (33).

8. The plastic processing waste recycling device according to claim 7, characterized in that: The re-crushing assembly (42) includes a fixed cylinder (421), a feed notch is provided at the top of the fixed cylinder (421), and the interior of the fixed cylinder (421) is rotatably connected to a main shaft (422), a spiral blade (423) is welded to the surface of the main shaft (422), and a fixed tooth (424) used in conjunction with the spiral blade (423) is welded to the inner wall of the fixed cylinder (421) in an annular shape, and the interior of the fixed cylinder (421) is rotatably connected to a baffle plate (425), and the top of the baffle plate (425) is bolted to a fixed plate (426), and the top of the fixed plate (426) is bolted to the main shaft (422).

9. The plastic processing waste recycling device according to claim 8, characterized in that: A material discharge hole (6) is provided at the front side of the bottom of the fixed cylinder (421), a limiting channel is provided inside the fixed cylinder (421), and the material stopper is located inside the limiting channel.

10. A method for using the plastic processing waste recycling device according to claims 1 to 9, characterized in that: The following steps are involved: S1. The waste generated during the plastic processing process enters the interior of the pre-crushing chamber (31) through the feed channel. At the same time, the pressing plate (33) is driven by the lower pressing assembly (34) to move up and down, and at the same time, the baffle (32) is driven to close or open the channel of the pre-crushing chamber (31) to prevent excessive feeding. The movement of the pressing plate (33) causes the crushing teeth (37) to perform preliminary crushing on the waste. The crushed waste enters the secondary crushing assembly (36) for processing through the guide plate (35); S2. The waste material after being crushed by the secondary crushing assembly (36) will fall onto the sorting and crushing structure (4). When the pressure plate (33) moves downward, the two ends of the sorting and crushing structure (4) will be tilted downward, and the baffle plate (425) will close the fixed cylinder (421). Therefore, the waste material after the secondary crushing will move along the inclined surface of the sorting and crushing structure (4), so that the waste material that meets the specifications will pass through the sorting and crushing structure (4) and fall into the collecting box (2), while the waste material that does not meet the specifications will be intercepted; S3. When the pressure plate (33) rises, it will simultaneously drive the two ends of the sorting and crushing structure (4) to tilt upward, making the two ends V-shaped. At the same time, the baffle plate (425) releases the interior of the fixed cylinder (421), and the intercepted large-sized materials enter the re-crushing component (42) under the action of gravity and the inclined surface for crushing, and finally enter the collection box (2).

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