A device for cleaning and crushing food packaging plastic scraps for recycling

Abstract

The application discloses a food packaging plastic leftover material cleaning and crushing recycling device, and relates to the technical field of plastic recycling.The device comprises a crushing assembly, a screening assembly and a cleaning assembly, and a plurality of cleaning assemblies are arranged.The device can hook and pull the hanging material through the hooking and bending knives, the plurality of hooking blades can exert shearing and tearing effects on the hanging material, the sharp end of the tearing claw has a sharp edge, under the rotation of the crushing roller, the large piece of material hooked is stretched and torn, the hooking and pulling of the hooking and bending knives, the shearing and tearing of the hooking blades and the tearing of the sharp end of the tearing claw are cooperated, the hanging material wrapped around the cutting edge is quickly stripped and crushed into small pieces which can fall, the hanging material is effectively prevented from idling and accumulating layer by layer, the cutting function of the cutting edge is recovered, and the crushing efficiency of the food packaging plastic bag leftover material is improved.

Description

Technical Field

[0001] This invention relates to the field of plastic recycling technology, specifically to a device for cleaning, crushing, and reusing plastic scraps from food packaging. Background Technology

[0002] The generation of plastic scraps from food packaging is a continuous process throughout the entire process of plastic product manufacturing, from molding to secondary processing. The root cause is that during the production and processing of plastic packaging products, a large amount of scraps are inevitably generated due to processes such as cutting, molding, and trimming. If these scraps are discarded directly, it will not only waste petroleum-based raw materials but also increase the environmental burden. Since these scraps have relatively simple compositions, their recycling value is often better than that of mixed household waste plastics.

[0003] In the existing technology, plastic food packaging bag scraps are lightweight, thin, soft and tough, making them difficult to be effectively engaged and sheared by the blades of the crushing roller during the crushing process. When the blades come into contact with the material, the material is prone to elastic deformation rather than brittle fracture. Under the pressure of the blades, the packaging bag will slide along the blade surface and wrap around the roller shaft, forming a "material hanging" or "blade entanglement" phenomenon. Some material cannot fall off as the roller spins idly, resulting in a significant reduction in crushing efficiency.

[0004] Therefore, we propose a device for cleaning, crushing, and recycling plastic scraps from food packaging to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a device for cleaning, crushing, and recycling plastic scraps from food packaging, in order to solve the problem mentioned in the background art of low crushing efficiency caused by the lightweight plastic bag scraps easily getting tangled in the blades and being difficult to effectively cut.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for cleaning, crushing, and recycling plastic scraps from food packaging, comprising a crushing component, a screening component, and a cleaning component. Multiple cleaning components are provided, each including a hooking mechanism, a tearing mechanism, and a cutting mechanism. The hooking mechanism includes a hooking curved blade, one end of which is a pointed edge. Multiple hooking blades are fixedly connected to one end of the hooking curved blade, and these blades are used to hook the scraps from the plastic bag. The tearing mechanism includes two tearing arc plates, each with multiple tearing claws fixedly connected to one concave side, and these claws are used to tear the scraps from the plastic bag.

[0007] Preferably, a fixing rod is fixedly connected to one end of the material hook cutter, and a mounting block is provided at one end of the fixing rod. The cross-section of the material hook cutter is sickle-shaped.

[0008] Preferably, the inside of the hook-shaped cutter is provided with an adjustment cavity, and two movable grooves are provided on one side of the inner wall of the adjustment cavity, while multiple insertion holes are provided on the other two sides of the inner wall of the adjustment cavity.

[0009] Preferably, the outer surfaces of the two tearing arc plates are movably connected to the inner walls of the two movable grooves, and a connecting plate is fixedly connected between the outer surfaces of the two tearing arc plates. The cutting mechanism is disposed on the outer surface of the connecting plate.

[0010] Preferably, the cutting mechanism includes an adjusting plate, on which a plurality of elastic rods are fixedly connected, and the elastic rods are used to return the tearing claw to its original position. The elastic rods are curved, and the adjusting plate has adjusting ramps on both sides.

[0011] Preferably, the outer surfaces of the two adjusting ramps are provided with multiple adjusting grooves, the inner wall of each adjusting groove is slidably connected with an adjusting slider, one end of each adjusting slider is fixedly connected with a cross-cutting blade, the outer surface of each cross-cutting blade is slidably connected to the inner wall of each insertion hole, and the cross-cutting blade is used to pierce the plastic bag scraps laterally.

[0012] Preferably, the crushing assembly includes a support mechanism, a collection box is fixedly installed inside the support mechanism, and the collection box is used to collect and transfer the crushed plastic scraps. A feeding mechanism is fixedly connected to the top of the support mechanism.

[0013] Preferably, a drive mechanism is provided on one side of the feeding mechanism, and a crushing mechanism is provided inside the feeding mechanism, and the drive mechanism is used to control the start of the crushing mechanism.

[0014] Preferably, multiple fixed triangular seats are fixedly installed on both inner walls of the feeding mechanism, and the fixed triangular seats are close to the edge of the crushing mechanism. The cleaning component is fixedly installed on the outer surface of the fixed triangular seats. The crushing mechanism includes a crushing roller, and each of the mounting blocks is fixedly installed on the outer surface of each fixed triangular seat.

[0015] Preferably, the screening assembly is fixedly connected to the bottom of the feeding mechanism, and the screening assembly includes a plurality of U-shaped support springs, with a screening screen plate fixedly connected to one end of each of the plurality of U-shaped support springs.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. During use, the hooked material is hooked by the tip of the curved hook and pulled outward. Multiple hooking blades can apply shearing and tearing action to the material. The sharp edges of the tearing claws have sharp edges. Under the rotation of the crushing roller, the hooked material is stretched and torn. Through the combined action of the hooking of the curved hook, the shearing and tearing of the hooking blades and the tearing of the sharp claws, the material wrapped around the cutting edge can be quickly peeled off and broken into small pieces that can fall. This effectively prevents the material from idling with the roller and accumulating layer by layer, restores the cutting function of the blade, and improves the crushing efficiency of food packaging plastic bag scraps.

[0018] 2. During use, when the plastic bag scraps are pulled by the tearing claw, the adjusting plate slides into the adjusting cavity. Because the adjusting groove is an inclined guiding structure, it exerts a lateral pushing effect on the end of the cross-cutting blade, gradually pushing it out of the insertion hole. When the scraps are hooked by the tearing claw and are pulled longitudinally, the cross-cutting blade extends from the side to pierce and cut the scraps laterally. This allows the large pieces of wrapped plastic bag scraps to be quickly torn apart under the dual action of longitudinal pulling and cross-cutting, effectively solving the problem that scraps are difficult to cut and break in one direction due to their high toughness and strong elastic deformation.

[0019] 3. During use, when the tearing claw is pulled by the material and slides inward along the movable groove, multiple elastic rods undergo elastic compression deformation and store rebound potential energy. When the plastic bag scraps hooked by the tearing claw finally break and fall off under continuous pulling and tearing, the elastic rods release elastic potential energy to push the connecting plate and the tearing claw to slide outward along the movable groove and reset, so that the tearing claw returns to the working position to hook the material. This allows for continuous hooking and tearing of scraps wrapped around the cutting edge, preventing the tearing claw from losing its gripping function due to being unable to reset after being embedded in the movable groove. Attached Figure Description

[0020] Figure 1 This is a first-view perspective perspective view of a device for cleaning, crushing, and recycling plastic scraps from food packaging according to the present invention. Figure 2 This is a second-view perspective perspective view of a device for cleaning, crushing, and recycling plastic scraps from food packaging according to the present invention. Figure 3 This is a perspective view of the drive mechanism of a food packaging plastic scrap cleaning, crushing and recycling device according to the present invention; Figure 4 This is a perspective view of the crushing component of a food packaging plastic scrap cleaning, crushing and recycling device according to the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a perspective view of the screening component of a food packaging plastic scrap cleaning, crushing and recycling device according to the present invention; Figure 7 This is a perspective view of the material hooking mechanism of a food packaging plastic scrap cleaning, crushing and recycling device according to the present invention; Figure 8 This is a sectional perspective view of the cutting mechanism of a food packaging plastic scrap cleaning, crushing and recycling device according to the present invention; Figure 9 This is a partial sectional perspective view of the cleaning component of a food packaging plastic scrap cleaning, crushing and recycling device according to the present invention; Figure 10 This is a perspective view of the cutting mechanism of a food packaging plastic scrap cleaning, crushing and recycling device according to the present invention; Figure 11 For the present invention Figure 10 Enlarged view of section B in the middle.

[0021] In the picture: 1. Crushing assembly; 11. Support mechanism; 12. Collection box; 13. Drive mechanism; 14. Crushing mechanism; 141. Crushing roller; 15. Feeding mechanism; 16. Fixed triangular seat; 2. Screening assembly; 201. U-shaped support spring; 202. Screening screen; 3. Cleaning assembly; 31. Hooking mechanism; 310. Hooking curved blade; 311. Fixed rod; 312. Mounting block; 313. Hooking blade; 314. Movable groove; 315. Insertion hole; 316. Adjustment chamber; 32. Tearing mechanism; 320. Connecting plate; 321. Tearing arc plate; 322. Tearing claw; 33. Cutting mechanism; 330. Adjusting plate; 331. Elastic rod; 332. Adjusting chute; 333. Cross-cutting blade; 334. Adjusting inclined plane; 335. Adjusting slider. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 11 The present invention provides a technical solution: This invention provides a device for cleaning, crushing, and recycling plastic scraps from food packaging, comprising a crushing component 1, a screening component 2, and a cleaning component 3. Multiple cleaning components 3 are provided, each including a hooking mechanism 31, a tearing mechanism 32, and a cutting mechanism 33. The hooking mechanism 31 includes a hooking curved blade 310, one end of which is pointed and flexible. Multiple hooking blades 313 are fixedly connected to one end of the hooking curved blade 310, and the hooking blades 313 are used to hook the scraps from the plastic bag. The tearing mechanism 32 includes two tearing arc plates 321, and multiple tearing claws 322 are fixedly connected to one concave side of each of the two tearing arc plates 321, and the tearing claws 322 are used to tear the scraps from the plastic bag.

[0024] In use, by driving the two crushing rollers 141 inside the crushing mechanism 14 to rotate in opposite directions, the cutting edges mounted on the surface of the crushing rollers 141 and the hooking blades 310 move in opposite directions. When material or plastic bag scraps are stuck to the cutting edges, the tip of the hooking blades 310 can penetrate into the contact interface between the material and the blade during the relative movement, thereby hooking the material and pulling it outward. At the same time, with the help of multiple hooking blades 313, a shearing and tearing action can be applied to the material, which is beneficial for forcibly peeling large pieces of wrapped plastic bag scraps from the cutting edges. For larger and tougher materials, multiple tearing blades can effectively remove them. The material claws 322 hook the material, and the two sets of tearing claws 322 hook the large pieces of material with their outward-facing spike-like structure. Because the spikes of the tearing claws 322 have sharp edges, the large pieces of material hooked are stretched and torn under the rotation of the crushing roller 141, and are further torn into small pieces. Through the combined action of the hooking of the hooking curved blade 310, the shearing and tearing of the hooking blade 313, and the tearing of the spikes of the tearing claws 322, the material wrapped around the cutting edge can be quickly peeled off and broken into small pieces that can fall, effectively preventing the material from idling with the roller and accumulating layer by layer, restoring the cutting function of the blade, and improving the crushing efficiency of food packaging plastic bag scraps.

[0025] It should also be noted that a fixing rod 311 is fixedly connected to one end of the hooking cutter 310, and a mounting block 312 is provided at one end of the fixing rod 311. The cross-section of the hooking cutter 310 is sickle-shaped.

[0026] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figures 7 to 11By hinged between the fixing rod 311 and the mounting block 312, the tip of the hooking blade 310 is always placed on the surface of the crushing roller 141, thus ensuring constant contact with the crushing roller 141 and preventing it from failing to catch the plastic bag scraps tangled between the two cutting edges. The fixing rod 310, made of wear-resistant metal, rotates and contacts the crushing roller 141 under its own weight, using gravity to cut the plastic bag. The mounting block 312 is fixedly positioned on the adjacent fixed three-position joint of the crushing roller 141. On the corner seat 16, the hooking curved blade 310 is positioned and installed by the mounting block 312. Its blade tip is aligned with the extension direction of the cutting edge. The hooking curved blade 310 has a sickle-shaped structure, and its curvature is oriented towards the rotation direction of the crushing roller 141. Since the blade tip is aligned with the cutting edge, the hooking curved blade 310 hooks the plastic bag scraps wrapped around the cutting edge. Under the guidance of the curved surface of the blade, it gradually detaches from the surface of the cutting edge, thereby achieving forced gripping and initial peeling of the hanging material, and preventing the hanging material from being attached to the cutting edge for a long time and rotating with the roller.

[0027] It should also be noted that the inside of the hooking curved blade 310 is provided with an adjustment cavity 316. Two movable grooves 314 are provided on one side of the inner wall of the adjustment cavity 316. The outer surfaces of the two tearing arc plates 321 are respectively movably connected to the inner walls of the two movable grooves 314. A connecting plate 320 is fixedly connected between the outer surfaces of the two tearing arc plates 321. The cutting mechanism 33 is set on the outer surface of the connecting plate 320.

[0028] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figures 7 to 11 The tearing claw 322 is mounted on the connecting plate 320 and can slide with the connecting plate 320 in the adjusting cavity 316 and the movable groove 314. When the crushing roller 141 rotates, if the plastic bag scraps wrapped on the cutting edge are still in large pieces after being peeled off by the hooking curved blade 310 and come into contact with the tearing claw 322, the scraps will hook the sharp end of the tearing claw 322. At this time, under the pulling action of the material, the tearing claw 322 is pushed towards the inside of the movable groove 314, thereby sliding inward along the movable groove 314. At the same time, it drives the connecting plate 320 to move synchronously in the adjusting cavity 316, so that the sharp end of the tearing claw 322 retracts and embeds into the movable groove 314, thereby pushing the adjusting plate 330 to move inside the adjusting cavity 316, which has the advantage of pushing multiple cross-cutting blades 333 to the side.

[0029] It should also be noted that the cutting mechanism 33 includes an adjusting plate 330. Multiple elastic rods 331 are fixedly connected to the convex side of the adjusting plate 330. The elastic rods 331 are used to return the tearing claw 322 to its original position. The elastic rods 331 are curved. Adjusting inclined surfaces 334 are provided on both sides of the adjusting plate 330.

[0030] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figures 7 to 11 When the tearing claw 322 is pulled by the material and slides inward into the movable groove 314, the connecting plate 320 simultaneously squeezes the multiple elastic rods 331 set in the adjustment cavity 316, causing the elastic rods 331 to undergo elastic compression deformation and store rebound potential energy. When the plastic bag scraps hooked by the tearing claw 322 finally break and fall off under continuous pulling and tearing, the elastic potential energy stored in the elastic rods 331 is released instantaneously, pushing the connecting plate 320 together with the tearing claw 322 to slide outward and reset along the movable groove 314, so that the sharp end of the tearing claw 322 extends out of the movable groove 314 again and returns to the working position to hook material. This allows for continuous hooking and tearing of scraps wrapped around the cutting edge, preventing the tearing claw 322 from losing its gripping function due to being unable to reset after being embedded in the movable groove 314.

[0031] It should also be noted that the inside of the hook-shaped curved blade 310 is provided with an adjustment cavity 316, and the inner walls of the other two sides of the adjustment cavity 316 are provided with multiple insertion holes 315. The outer surfaces of the two adjustment slopes 334 are provided with multiple adjustment grooves 332. The inner wall of each adjustment groove 332 is slidably connected to an adjustment slider 335. One end of each adjustment slider 335 is fixedly connected to a cross-cutting blade 333. The outer surface of each cross-cutting blade 333 is slidably connected to the inner wall of each insertion hole 315, and the cross-cutting blade 333 is used to pierce the scraps of plastic bags laterally.

[0032] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figures 7 to 11 When the scrap plastic bag material pulls the tearing claw 322, causing the connecting plate 320 and adjusting plate 330 to slide into the adjusting cavity 316, the inclined adjusting groove 332 on the adjusting plate 330 moves forward accordingly. Because the adjusting groove 332 is an inclined guiding structure, its groove wall exerts a lateral pushing force on the end of the cross-cutting blade 333 inserted into the insertion hole 315, gradually pushing the cross-cutting blade 333 outward from the insertion hole 315. Simultaneously, as the scrap plastic bag material is hooked by the tearing claw 322 and subjected to longitudinal pulling, The transverse cutting blade 333 extends from the side to pierce and cut the hanging material laterally. This allows large pieces of tangled plastic bag scraps to be quickly torn apart under the dual action of longitudinal pulling and transverse cutting. This avoids the situation where tough materials are stretched and deformed without breaking when only longitudinally torn. The combined action of longitudinal hooking and tearing and transverse piercing and cutting effectively solves the problem that scraps are difficult to shear and break in one direction due to their high toughness and strong elastic deformation. It accelerates the disintegration and detachment of the hanging material from the cutting edge, reduces the material from idling with the roller, and ensures crushing efficiency.

[0033] It should also be noted that the crushing component 1 includes a support mechanism 11, and a collection box 12 is fixedly installed inside the support mechanism 11. The collection box 12 is used to collect and transfer the crushed plastic scraps. A feeding mechanism 15 is fixedly connected to the top of the support mechanism 11.

[0034] Please see Figures 1 to 6 The scraps from food packaging plastic bags enter the device through the feeding mechanism 15. The upper part of the feeding mechanism 15 is a bucket-shaped feeding area. This open and flared structure facilitates the smooth input and initial collection of scraps, preventing lightweight scraps from clogging or scattering at the inlet. The lower part is the core crushing area. The scrap fragments sheared by the crushing roller 141 fall into the collection box 12 by their own weight. The top of the collection box 12 adopts an open and wide-mouth design to receive the scattered fragments, preventing the fragments from accumulating or rebounding in the discharge area. The bottom surface is inclined, so that the fragments falling into the collection box 12 automatically accumulate to the lower side under their own weight and slide down the slope, and finally are discharged from the outlet on one side of the bottom of the collection box 12, achieving orderly collection. This is conducive to the centralized collection of plastic bag scrap fragments and prevents lightweight fragments from scattering everywhere.

[0035] It should also be noted that a drive mechanism 13 is provided on one side of the feeding mechanism 15, and a crushing mechanism 14 is provided inside the feeding mechanism 15. The drive mechanism 13 is used to control the start of the crushing mechanism 14.

[0036] Please see Figures 1 to 6 The scraps of food packaging plastic bags fed into the feeding mechanism 15 enter the core crushing area of ​​the crushing mechanism 14. A pair of opposing crushing rollers 141 are arranged in parallel inside the crushing mechanism 14. The surfaces of the two crushing rollers 141 are distributed with cutting edges. By starting the drive mechanism 13, its motor drives two gears to rotate synchronously in opposite directions, thereby driving the two crushing rollers 141 to rotate inward at the same time. The scraps falling between the two rollers are sheared and shredded by rolling. In this process, the opposing rotation of the two crushing rollers 141 creates a bidirectional stretching and squeezing effect on the material. The scraps, which are originally lightweight, thin, and tough, are subjected to tension forces from two directions when they enter the roller gap. This allows the scraps to be quickly cut before they undergo significant elastic deformation and become entangled with the blades, thereby effectively preventing the material from spinning idly with the rollers and ensuring the continuity and efficiency of the crushing operation.

[0037] It should also be noted that multiple fixed triangular seats 16 are fixedly installed on both sides of the inner wall of the feeding mechanism 15, and the fixed triangular seats 16 are close to the edge of the crushing mechanism 14. The cleaning component 3 is fixedly installed on the outer surface of the fixed triangular seats 16. The crushing mechanism 14 includes a crushing roller 141, and each mounting block 312 is fixedly installed on the outer surface of each fixed triangular seat 16.

[0038] Please see Figures 1 to 6 On the crushing roller 141 of the crushing mechanism 14, a fixed triangular seat 16 is provided between every two adjacent cutting edges. The fixed triangular seat 16 fills the gap between the crushing roller 141 and the inner wall of the feeding mechanism 15, preventing light and soft scraps from being rolled into the gap between the roller end and the shell during the crushing process, thereby avoiding the accumulation and jamming of materials in the non-cutting area. On the other hand, a cleaning component 3 is installed on the fixed triangular seat 16. The cleaning component 3 moves relative to the tip of the cutting edge during the rotation of the roller, and scrapes and peels off the material hanging on the tip of the cutting edge. It removes the uncut material from the cutting edge in time, so that the cutting edge returns to a clean cutting state with each rotation. This prevents the material from accumulating layer by layer, which would cover the effective cutting surface of the cutting edge and prevent the material from falling off as the roller spins. This ensures that the crushing roller 141 maintains a high-efficiency shearing capacity and reduces the problem of decreased crushing efficiency caused by blade entanglement.

[0039] It should also be noted that the screening assembly 2 is fixedly connected to the bottom of the feeding mechanism 15. The screening assembly 2 includes multiple U-shaped support springs 201, and a screening screen 202 is fixedly connected to one end of each of the multiple U-shaped support springs 201.

[0040] Please see Figures 1 to 6 A screening screen 202 is installed below the crushing roller 141. The material that has been sheared and shredded by the crushing roller 141 falls directly onto the screening screen 202. The screening screen 202 has multiple screen holes. Its screening function is as follows: fragments with a particle size smaller than the screen holes pass through the screen under their own gravity and fall into the collection box 12 below for collection. Fragments with a particle size larger than the screen holes that are not fully crushed are intercepted. Since the screening screen 202 is located below the rotation range of the crushing roller 141, these intercepted large fragments will be rolled back into the roller gap with the continuous rotation of the crushing roller 141 and subjected to the shearing action of the rollers again until their particle size is reduced to be able to pass through the screen holes. At the same time, it also prevents uncut flaky materials from spinning or accumulating in the crushing chamber with the rollers. This ensures that the crushing roller 141 repeatedly shears the large pieces of material that cannot pass through the screen, thereby effectively improving the uniformity and efficiency of the overall crushing.

[0041] The working principle of this device is as follows: During use, scraps from food packaging plastic bags enter the device through the feeding mechanism 15. After being sheared by the crushing rollers 141, the scrap fragments fall into the collection box 12 under their own weight. This causes the fragments falling into the collection box 12 to automatically accumulate towards the lower side under their own weight and slide down the slope, eventually being discharged from the outlet on one side of the bottom of the collection box 12. A pair of opposing rotating crushing rollers 141 are arranged parallel to each other inside the crushing mechanism 14. Both crushing rollers 141 have cutting edges distributed on their surfaces. By activating the drive mechanism 13, its motor drives two gears to rotate synchronously in opposite directions, thereby causing the two crushing rollers 141 to rotate inwards simultaneously, performing a rolling shearing and shredding of the scraps falling between the two rollers. The scraps are then fixed to the triangular base 16. Equipped with a material cleaning component 3, this component scrapes and peels off the material clinging to the blade tip as the roller rotates, promptly removing any uncut material from the blade. The material, sheared and shredded by the crushing roller 141, falls directly onto the screening screen 202. Fragments smaller than the screen opening pass through the screen under their own gravity and fall into the collection box 12 below for collection. Larger fragments are re-rolled into the roller gap as the crushing roller 141 continues to rotate, undergoing shearing again until their size is reduced to pass through the screen opening. The hooking blade 310, with its tip extending into the contact interface between the material and the blade during relative motion, hooks and pulls the material outwards. Multiple hooking blades 313 are also used to further... Capable of applying shearing and tearing action to the hanging material, the two sets of tearing claws 322 hook large pieces of hanging material with their outward-facing spike-like structure, causing the hooked material to be stretched and torn into smaller pieces. When the crushing roller 141 rotates, the scrap material hooks the spiked ends of the tearing claws 322. At this time, under the pulling action of the material, the tearing claws 322 are pushed towards the inside of the movable groove 314, thus sliding inward along the movable groove 314. At the same time, the connecting plate 320 is synchronously displaced in the adjusting cavity 316, causing the spiked ends of the tearing claws 322 to retract and embed into the movable groove 314. When the tearing claws 322 are pulled by the hanging material and slide inward along the movable groove 314, multiple elastic rods 331 are squeezed. When the plastic bag scrap material hooked by the tearing claws 322 is held... When the material finally breaks and detaches under the continuous pulling and tearing action, the elastic rod 331 rebounds and pushes the connecting plate 320, along with the tearing claw 322, to slide outward and reset along the movable groove 314. This allows the sharp end of the tearing claw 322 to extend out of the movable groove 314 again, returning to the working position for hooking material. When the connecting plate 320 and the adjusting plate 330 slide into the adjusting cavity 316, the inclined adjusting groove 332 on the adjusting plate 330 moves forward accordingly. Since the adjusting groove 332 is an inclined guiding structure, its groove wall exerts a lateral pushing effect on the end of the cross-cutting blade 333 inserted into the insertion hole 315, gradually pushing the cross-cutting blade 333 outward from the insertion hole 315. As the material is hooked by the tearing claw 322 and subjected to longitudinal pulling, the cross-cutting blade 333 extends outward from the side.The material is pierced and cut laterally, causing the large, tangled scraps of plastic bags to be rapidly torn apart by the combined action of longitudinal pulling and transverse cutting.

[0042] The wiring diagram of the drive motor 130 in this invention is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring layout of the drive motor 130 will not be explained in detail.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for cleaning, crushing, and recycling plastic scraps from food packaging, comprising a crushing component (1), a screening component (2), and a cleaning component (3), wherein multiple cleaning components (3) are provided, characterized in that: The material cleaning component (3) includes a material hooking mechanism (31), a material tearing mechanism (32), and a material cutting mechanism (33). The material hooking mechanism (31) includes a material hooking blade (310), one end of which is pointed and flexible. Multiple material hooking blades (313) are fixedly connected to one end of the material hooking blade (310), and the material hooking blades (313) are used to hook the scraps of the plastic bag. The material tearing mechanism (32) includes two material tearing arc plates (321), and multiple material tearing claws (322) are fixedly connected to one concave side of each of the two material tearing arc plates (321), and the material tearing claws (322) are used to tear the scraps of the plastic bag.

2. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 1, characterized in that: One end of the hook-shaped cutter (310) is fixedly connected to a fixing rod (311), and one end of the fixing rod (311) is provided with an installation block (312). The cross section of the hook-shaped cutter (310) is sickle-shaped.

3. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 2, characterized in that: The material hook (310) has an adjustment cavity (316) inside. Two movable grooves (314) are opened on one side of the inner wall of the adjustment cavity (316), and multiple insertion holes (315) are opened on the other two sides of the inner wall of the adjustment cavity (316).

4. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 3, characterized in that: The outer surfaces of the two tearing arc plates (321) are movably connected to the inner walls of the two movable grooves (314), and a connecting plate (320) is fixedly connected between the outer surfaces of the two tearing arc plates (321). The cutting mechanism (33) is disposed on the outer surface of the connecting plate (320).

5. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 4, characterized in that: The cutting mechanism (33) includes an adjusting plate (330). A plurality of elastic rods (331) are fixedly connected to one side of the convex surface of the adjusting plate (330). The elastic rods (331) are used to return the tearing claw (322) to its original position. The elastic rods (331) are curved. Adjusting inclined surfaces (334) are provided on both sides of the adjusting plate (330).

6. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 5, characterized in that: The outer surfaces of the two adjustment ramps (334) are provided with multiple adjustment grooves (332). The inner wall of each adjustment groove (332) is slidably connected to an adjustment slider (335). One end of each adjustment slider (335) is fixedly connected to a cross-cutting blade (333). The outer surface of each cross-cutting blade (333) is slidably connected to the inner wall of each insertion hole (315), and the cross-cutting blade (333) is used to pierce the scraps of the plastic bag laterally.

7. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 6, characterized in that: The crushing component (1) includes a support mechanism (11), and a collection box (12) is fixedly installed inside the support mechanism (11). The collection box (12) is used to collect and transfer crushed plastic scraps. A feeding mechanism (15) is fixedly connected to the top of the support mechanism (11).

8. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 7, characterized in that: A drive mechanism (13) is provided on one side of the feeding mechanism (15), and a crushing mechanism (14) is provided inside the feeding mechanism (15). The drive mechanism (13) is used to control the start of the crushing mechanism (14).

9. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 8, characterized in that: Multiple fixed triangular seats (16) are fixedly installed on both sides of the inner wall of the feeding mechanism (15), and the fixed triangular seats (16) are close to the edge of the crushing mechanism (14). The cleaning component (3) is fixedly installed on the outer surface of the fixed triangular seat (16). The crushing mechanism (14) includes a crushing roller (141). Each mounting block (312) is fixedly installed on the outer surface of each fixed triangular seat (16).

10. The food packaging plastic scrap cleaning, crushing and recycling device according to claim 9, characterized in that: The screening assembly (2) is fixedly connected to the bottom of the feeding mechanism (15). The screening assembly (2) includes multiple U-shaped support springs (201), and a screening screen (202) is fixedly connected between one end of each of the multiple U-shaped support springs (201).

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