Plastic film recycling and processing device

Abstract

The present invention discloses a plastic film recycling and processing device, comprising: a support frame, a tray fixedly mounted on the upper surface of the support frame, a U-shaped strip drum fixedly mounted on the upper surface of the tray, two sets of flush and opposite shearing and pushing mechanisms rotatably mounted in the U-shaped strip drum, a pushing mechanism slidingly mounted on the outer surface of the shearing and pushing mechanism, a T-shaped three-way pipe connected to the lower surface of one end of the U-shaped strip drum, a compacting mechanism fixedly mounted on one end of the tray, and the compacting end of the compacting mechanism slidingly passed into the T-shaped three-way pipe. This application realizes efficient and lossless shearing and high-density compaction of plastic film through the design of the compacting mechanism, the shearing and pushing mechanism and the pushing mechanism, through the linkage of the automated process and the precise machinery, wherein the staggered rotating cutters ensure the shearing efficiency and quality, the spiral blades smoothly transition the material, and the precise pressure control of the hydraulic system is combined to improve the processing speed of the plastic film and ensure the regularity and density of the finished product.

Description

Technical Field

[0001] The present invention relates to the technical field of recycling devices, in particular to a plastic film recycling and processing device. Background Art

[0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins are used for packaging and as coatings. Plastic packaging and plastic packaging products are increasingly occupying a larger share of the market, especially composite plastic flexible packaging, which has been widely used in the food, pharmaceutical, chemical and other fields. Food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, steamed food packaging, fast food packaging, etc. These products have brought great convenience to people's lives.

[0003] For example, the patent with national authorized patent announcement number CN213260533U discloses a waste plastic film recycling and processing device, which includes a box body, an embedded block, a serrated blade, and a protective shell. A discharge pipe is installed through the middle of the lower end surface of the box body, and blanking plates are fixed on both sides of the bottom end of the box body, and the blanking plates correspond to the discharge pipe. A guide hopper is installed through the middle of the upper end surface of the box body. A first crushing roller and a second crushing roller are rotatably installed on both sides of the box body via a rotating shaft. The protective shell is fixed to the middle of the front end surface of the box body. A first gear and a second gear are rotatably installed on both sides of the protective shell via bearings. A drive box is fixed on both sides of the front end surface of the protective shell. The embedded block is embedded in the middle of both sides of the box body. A slot is defined in the middle of the embedded block, and a slot is defined in the middle of the outer end of the slot. The serrated blade is inserted into the slot. The present invention has the advantages of high crushing efficiency and effective segmented crushing, thereby improving crushing quality.

[0004] However, the above-mentioned waste plastic film recycling and processing device cannot automatically push and compact the shredded plastic film while shearing the plastic film into pieces, which will cause the plastic film to accumulate in the crushing area or conveying pipeline, resulting in workflow interruption and affecting subsequent processing links, thereby making it impossible for the equipment to perform continuous processing during the process of shredding the plastic film. Summary of the Invention

[0005] The purpose of the present invention is to provide a plastic film recycling and processing device to solve the problem raised in the above-mentioned background technology that the plastic film cannot be automatically pushed and compacted while being cut into pieces, which will cause the plastic film to accumulate in the crushing area or conveying pipeline, resulting in the interruption of the work process, and further making it impossible for the equipment to perform continuous processing during the process of shredding the plastic film.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A plastic film recycling and processing device comprises: a support frame, the upper surface of the support frame is inclined at 20 degrees, a tray is fixedly installed on the upper surface of the support frame, a U-shaped strip drum is fixedly installed on the upper surface of the tray, so that the U-shaped strip drum is also inclined at 20 degrees through the support of the support frame, two sets of flush and opposite shearing and pushing mechanisms are rotatably installed in the U-shaped strip drum, and the outer surface of the shearing and pushing mechanism is slidably sleeved with a pushing mechanism, so that the pushing mechanism can push the plastic film centrally to the shearing end of the shearing and pushing mechanism for shearing;

[0008] Among them, the lower surface of one end of the U-shaped strip barrel is connected to and installed with a T-shaped tee pipe, and a compacting mechanism is fixedly installed at one end of the tray. The compacting end of the compacting mechanism slides into the T-shaped tee pipe, and the pushing end of the shearing and pushing mechanism can push the sheared plastic film fragments into the T-shaped tee pipe.

[0009] Preferably, two sets of guide rail grooves are provided on both sides of the upper end of the U-shaped bar barrel, and sliding covers are slidably installed in the two sets of guide rail grooves. The two sets of sliding covers are staggered up and down, and the sliding covers are made of acrylic material.

[0010] Preferably, the shearing and pushing mechanism includes a first rotating rod and a second rotating rod, the first rotating rod and the second rotating rod are both rotatably mounted on both sides of the U-shaped canister and are flush with each other, one end of the first rotating rod and the second rotating rod pass through the U-shaped canister and are rotatably mounted in a bearing seat, and the bearing seat is fixedly mounted on one end of the U-shaped canister;

[0011] Among them, the other ends of the first rotating rod and the second rotating rod pass through the other end of the U-shaped strip barrel and are rotatably installed in the sleeve, and the sleeve is fixedly installed on the upper surface of the support frame. The first rotating rod and the second rotating rod also rotate through the sleeve and make the first rotating rod fixedly connected to the output shaft of the reduction motor, and the reduction motor is fixedly installed on the upper surface of the support frame.

[0012] Preferably, the outer surfaces of the first rotating rod and the second rotating rod located in the sleeve segment are fixedly mounted with gears and are sleeved by the sleeve, and the two sets of gears are engaged with each other, so that when the first rotating rod is driven to rotate by the reduction motor, the gears fixedly mounted on the outer surface can be engaged with the gears on the outer surface of the second rotating rod to rotate together, thereby enabling the first rotating rod and the second rotating rod to rotate relatively synchronously.

[0013] Preferably, cutters and spiral blades are fixedly mounted on the outer surfaces of the first rotating rod and the second rotating rod;

[0014] The two groups of cutters are staggered, and the two groups of spiral blades are relatively flush, so that after the cutters shear the plastic film, they can be pushed into the T-shaped three-way pipe by the spiral blades.

[0015] Preferably, the pushing mechanism includes a linear module, which is fixedly mounted at one end of the U-shaped barrel, and a connecting block is fixedly mounted at one end of the moving block of the linear module, and the connecting block slides from the sliding groove into the U-shaped barrel, and a pushing plate is fixedly mounted at one end of the connecting block that slides into the U-shaped barrel, so that the pushing plate is slidably mounted in the U-shaped barrel, and the sliding groove is opened at one end of the U-shaped barrel.

[0016] Preferably, the push plate slidably installed in the U-shaped strip barrel is also slidably installed on the outer surfaces of the first rotating rod and the second rotating rod, so that the push plate can push the plastic film placed in the U-shaped strip barrel toward the cutter through the drive of the linear module.

[0017] Preferably, the compacting mechanism includes a first hydraulic rod, which is fixedly mounted on one end of the support frame, and a compacting plate is fixedly mounted on one end of the piston rod of the first hydraulic rod, and the compacting plate is slidably mounted on one end of the T-shaped three-way pipe, so that the compacting plate can block one end of the T-shaped three-way pipe.

[0018] Preferably, an L-shaped top plate is slid through the middle interior of the T-shaped tee pipe, and the L-shaped top plate is fixedly mounted on one end of the piston rod of the second hydraulic rod. The second hydraulic rod is fixedly mounted on one end of the support frame and is located directly above the first hydraulic rod, so that the L-shaped top plate can cover the upper half of the T-shaped tee pipe after being pushed by the second hydraulic rod, and is flush with the upper surface of the compacting plate.

[0019] Preferably, a closing cover is rotatably mounted on the other end of the T-shaped three-way pipe, so that the closing cover can block the other end of the T-shaped three-way pipe, and a pressure sensor is fixedly mounted on one end of the closing cover, so that when the closing cover blocks the other end of the T-shaped three-way pipe, it can drive the pressure sensor to be flush with the compacting plate, the signal transmitting end of the pressure sensor is connected to the signal receiving end of the controller, the control output end of the controller is electrically connected to the electric control end of the electric push rod, the electric push rod is rotatably mounted on one end of the lower surface of the support frame, and the piston rod of the electric push rod is rotatably connected to the closing cover;

[0020] The pressure sensor and controller are of the WIKA PPT-1 series and Honeywell ControlEdge series, respectively.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Through the design of the U-shaped can, T-shaped three-way pipe, compacting mechanism, shearing and pushing mechanism, when the plastic film is sheared into pieces, the plastic film to be processed can be poured into the U-shaped can and the sliding cover can be pulled to close the U-shaped can. Then, the pushing mechanism can be activated to push the plastic film in the U-shaped can toward the shearing end of the shearing and pushing mechanism, so that the shearing and pushing mechanism can shear the plastic film step by step. The step-by-step shearing ensures that the plastic film is evenly cut into pieces of predetermined sizes. By adjusting the pushing speed of the pushing mechanism, the plastic film can be sheared into pieces of different sizes, thereby improving the shearing quality and facilitating subsequent processing and recycling.

[0023] After the plastic film passes through the shearing end of the shearing and pushing mechanism, the 20° inclination of the U-shaped strip barrel allows the sheared plastic film to enter the pushing end of the shearing and pushing mechanism, and then the pushing end of the shearing and pushing mechanism can push the sheared plastic film into the T-shaped three-way pipe. After the shearing of the current batch of plastic film is completed, the compacting mechanism can be started to press into the T-shaped three-way pipe, thereby compacting the sheared plastic film into blocks. After the set pressure value is reached during the compaction process, the compacting mechanism will flip over at the other end of the T-shaped three-way pipe for the compacted plastic film to be compacted. The mechanism pushes it out from the T-shaped three-way pipe, and the sheared plastic film is compacted into blocks through the compacting mechanism, which can be conveniently stored and transported, reduces the occupied space, and improves the efficiency of subsequent processing. During the compaction process, the set pressure can be achieved to ensure the stability and consistency of the compacted plastic film, improve the quality of the final product, and avoid loose materials. Then the staff can pour the compacted plastic film into the extruder, so that the extruder heats and melts the plastic film, and then extrude it through a mold to make plastic particles, thus completing the recycling process of the plastic film.

[0024] 2. Through the design of the reduction motor, the first rotating rod, the second rotating rod, the gears, the cutter and the spiral blades, when shearing the plastic film, the reduction motor can be started to drive the first rotating rod to rotate. During the rotation of the first rotating rod, the gear fixed on the outer surface of the first rotating rod is driven to mesh with the gear on the outer surface of the second rotating rod to rotate together. As a result, the first rotating rod and the second rotating rod can drive the cutters on the outer surfaces to rotate synchronously in a staggered manner to perform the shearing operation on the plastic film. The cutters rotate synchronously in a staggered manner, which can achieve a more efficient shearing effect, reduce the drag on the material, avoid the jamming phenomenon during the shearing process, and ensure that the plastic film can be cut quickly and evenly.

[0025] The cut plastic film will slide into two sets of relatively synchronously rotating spiral blades through the cutter, and then the spiral blades will push the cut plastic film into the T-shaped three-way pipe, so that the material can move quickly and orderly, improving the overall conveying efficiency, ensuring the timely processing of the cut material, and avoiding the situation where the U-shaped strip barrel is blocked in the channel. The simultaneous cutting and pushing makes the material processing process smoother, reduces waiting time and stagnation, and can complete the cutting and conveying of materials in a shorter time, shortening the processing cycle and improving the coordination of the overall system.

[0026] 3. Through the design of the linear module, connecting block and pushing plate, when the plastic film is poured into the U-shaped strip drum for shearing, the linear module can be started to drive the connecting block at one end of the moving block to slide horizontally in the sliding groove, and then the connecting block can drive the pushing plate installed at one end to slide the plastic film in the U-shaped strip drum towards the cutter. The uniform pushing of the pushing plate driven by the linear module can make the plastic film evenly close to the cutter, thereby ensuring the uniformity of the cutting process and reducing the inconsistent shearing caused by uneven materials. The pushing action can ensure that each piece of material can be effectively processed, thereby improving the quality of the final product, and by adjusting the speed of the linear module to push the pushing plate, the staff can cut the plastic film into different sizes according to different thicknesses and types, thereby enabling the equipment to adapt to the processing needs of various materials and meet different production processes.

[0027] 4. Through the design of the electric push rod, closing cover, first hydraulic rod, compacting plate, second hydraulic rod and pressure sensor, after the current batch of plastic film is cut and pushed into the T-shaped three-way pipe, the second hydraulic rod can be started to push the L-shaped top plate at one end of the piston rod, and then the L-shaped top plate can be slid into the T-shaped three-way pipe to block the top of the T-shaped three-way pipe. Then, the first hydraulic rod can be started again to push the compacting plate at one end of the piston rod into the T-shaped three-way pipe, and then the plastic film can be squeezed between the compacting plate and the pressure sensor of the closing cover. Then, as the first hydraulic rod continues to apply pressure, the plastic film can be compacted into blocks, and in the process of compacting the plastic film The pressure sensor will continue to detect the pressure value until the pressure value reaches the set value, then the pressure sensor will send the pressure signal to the controller, and the controller will control the electric push rod to pull the closing cover at one end of the piston rod to flip open. As the first hydraulic rod continues to push, the plastic film compacted into blocks is pushed out of the T-shaped three-way pipe. The real-time monitoring of pressure changes by the pressure sensor enables the compacting plate to apply pressure evenly to the plastic film, ensuring that the entire material is compacted under the same pressure, thereby improving the uniformity and density of the final compacted block. Real-time pressure monitoring can monitor the compaction process in real time to ensure that each step is within the control range to avoid overpressure or underpressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the plastic film recycling and processing device of the present invention;

[0029] Figure 2 It is a structural schematic diagram of the sliding cover of the present invention;

[0030] Figure 3 It is a structural schematic diagram of the bearing seat of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the shearing and pushing mechanism of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the cutter and spiral blade of the present invention;

[0033] Figure 6 It is a structural schematic diagram of the material pushing mechanism of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the closing cover of the present invention being electrically pushed and pulled to unfold;

[0035] Figure 8 It is a structural schematic diagram of the compacting mechanism of the present invention.

[0036] In the figure: 1. Support frame; 101. Tray; 102. U-shaped strip drum; 103. Bearing seat; 104. Sleeve; 105. T-shaped tee; 106. Sliding cover; 107. Guide rail groove; 108. Sliding groove; 2. Compacting mechanism; 201. Electric push rod; 202. Closing cover; 203. First hydraulic rod; 204. Compacting plate; 205. Second hydraulic rod; 206. L-shaped top plate; 207. Pressure sensor; 3. Shearing and pushing mechanism; 301. Reducer motor; 302. First rotating rod; 303. Second rotating rod; 304. Gear; 305. Cutter; 306. Spiral blade; 4. Pushing mechanism; 401. Linear module; 402. Pushing plate; 403. Connecting block. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figures 1-8 , this embodiment provides the following technical solutions:

[0039] like Figure 1-Figure 3As shown, a plastic film recycling and processing device comprises: a support frame 1, the upper surface of the support frame 1 is inclined at 20 degrees, a tray 101 is fixedly installed on the upper surface of the support frame 1, a U-shaped strip drum 102 is fixedly installed on the upper surface of the tray 101, so that the U-shaped strip drum 102 is also inclined at 20 degrees through the support of the support frame 1, two sets of flush and opposite shearing and pushing mechanisms 3 are rotatably installed in the U-shaped strip drum 102, and the outer surface of the shearing and pushing mechanism 3 is slidingly sleeved with a pushing mechanism 4, so that the pushing mechanism 4 can push the plastic film centrally to the shearing end of the shearing and pushing mechanism 3 for shearing;

[0040] Among them, the lower surface of one end of the U-shaped strip barrel 102 is connected to and installed with a T-shaped tee 105, and a compacting mechanism 2 is fixedly installed at one end of the tray 101. The compacting end of the compacting mechanism 2 slides into the T-shaped tee 105, and the pushing end of the shearing and pushing mechanism 3 can push the sheared plastic film fragments into the T-shaped tee 105.

[0041] Among them, two sets of guide grooves 107 are opened on both sides of the upper end of the U-shaped strip drum 102, and sliding covers 106 are slidably installed in the two sets of guide grooves 107. The two sets of sliding covers 106 are staggered up and down, and the sliding covers 106 are made of acrylic material.

[0042] Through the design of the U-shaped can 102, the T-shaped three-way pipe 105, the compacting mechanism 2, the shearing and pushing mechanism 3 and the pushing mechanism 4, when the plastic film is sheared into pieces, the plastic film to be processed can be poured into the U-shaped can 102 and the sliding cover 106 can be pulled to close the U-shaped can 102, and then the pushing mechanism 4 can be started to push the plastic film in the U-shaped can 102 toward the shearing end of the shearing and pushing mechanism 3, so that the shearing and pushing mechanism 3 can shear the plastic film step by step, and the step-by-step shearing ensures that the plastic film is evenly cut into pieces of predetermined sizes, and by adjusting the pushing speed of the pushing mechanism 4, the plastic film can be sheared into pieces of different sizes, thereby improving the shearing quality and facilitating subsequent processing and recycling;

[0043] After the plastic film passes through the shearing end of the shearing and pushing mechanism 3, the 20° inclination of the U-shaped strip barrel 102 enables the sheared plastic film to enter the pushing end of the shearing and pushing mechanism 3, and then the pushing end of the shearing and pushing mechanism 3 can push the sheared plastic film into the T-shaped three-way pipe 105, until the current batch of plastic film is sheared. Then the compacting mechanism 2 can be started to press into the T-shaped three-way pipe 105, thereby realizing the compaction of the sheared plastic film into blocks, and after reaching the set pressure value during the compaction process, the compacting mechanism 2 will flip over at the other end of the T-shaped three-way pipe 105 to supply the compacted plastic film. The material film is pushed out of the T-shaped three-way pipe 105 by the compacting mechanism 2, and the sheared plastic film is compacted into blocks by the compacting mechanism 2, which can be conveniently stored and transported, reduces the occupied space, and improves the efficiency of subsequent processing. During the compaction process, the set pressure can be achieved to ensure the stability and consistency of the compacted plastic film, improve the quality of the final product, and avoid the loosening of the material. The staff can then pour the compacted plastic film into the extruder, so that the extruder heats and melts the plastic film, and then extrude it through a mold to make plastic particles, thus completing the recycling process of the plastic film.

[0044] like Figure 4-Figure 5 As shown, the shearing and pushing mechanism 3 includes a first rotating rod 302 and a second rotating rod 303. The first rotating rod 302 and the second rotating rod 303 are both rotatably mounted on both sides of the U-shaped can 102 and are flush with each other. One end of the first rotating rod 302 and the second rotating rod 303 pass through the U-shaped can 102 and are rotatably mounted in the bearing seat 103. The bearing seat 103 is fixedly mounted on one end of the U-shaped can 102.

[0045] Among them, the other end of the first rotating rod 302 and the second rotating rod 303 passes through the other end of the U-shaped strip barrel 102 and is rotatably installed in the sleeve 104. The sleeve 104 is fixedly installed on the upper surface of the support frame 1. The first rotating rod 302 and the second rotating rod 303 also rotate through the sleeve 104, and the first rotating rod 302 is fixedly connected to the output shaft of the reduction motor 301. The reduction motor 301 is fixedly installed on the upper surface of the support frame 1.

[0046] The outer surfaces of the first rotating rod 302 and the second rotating rod 303 located in the sleeve 104 segment are fixedly mounted with gears 304 and are sleeved by the sleeve 104. The two sets of gears 304 are engaged with each other, so that when the first rotating rod 302 is driven to rotate by the reduction motor 301, the gears 304 fixed on the outer surface can be engaged with the gears 304 on the outer surface of the second rotating rod 303 to rotate together, thereby enabling the first rotating rod 302 and the second rotating rod 303 to rotate relatively synchronously.

[0047] A cutter 305 and a spiral blade 306 are fixedly mounted on the outer surfaces of the first rotating rod 302 and the second rotating rod 303;

[0048] The two sets of cutters 305 are staggered, and the two sets of spiral blades 306 are relatively flush, so that the cutters 305 can push the plastic film into the T-shaped three-way pipe 105 after shearing it.

[0049] Through the design of the reduction motor 301, the first rotating rod 302, the second rotating rod 303, the gear 304, the cutter 305 and the spiral blade 306, when shearing the plastic film, the reduction motor 301 can be started to drive the first rotating rod 302 to rotate, and during the rotation of the first rotating rod 302, the gear 304 fixed on the outer surface will be driven to mesh with the gear 304 on the outer surface of the second rotating rod 303 to rotate together, thereby enabling the first rotating rod 302 and the second rotating rod 303 to drive the cutter 305 on the outer surface to rotate synchronously in a staggered manner to perform a shearing operation on the plastic film. The cutter 305 rotates synchronously in a staggered manner, which can achieve a more efficient shearing effect, reduce the drag on the material, avoid the jamming phenomenon during the shearing process, and ensure that the plastic film can be cut quickly and evenly;

[0050] The cut plastic film will slide into two sets of relatively synchronously rotating spiral blades 306 through the cutter 305, and then the spiral blades 306 will push the cut plastic film into the T-shaped three-way pipe 105, so that the material can be moved quickly and orderly, improving the overall transportation efficiency, ensuring the timely processing of the cut material, and avoiding the situation where the U-shaped strip barrel 102 is blocked. The simultaneous cutting and pushing makes the material processing process smoother, reduces waiting time and stagnation, and can complete the cutting and transportation of materials in a shorter time, shortening the processing cycle and improving the coordination of the overall system.

[0051] like Figure 6 As shown, the pushing mechanism 4 includes a linear module 401, which is fixedly installed at one end of the U-shaped barrel 102. A connecting block 403 is fixedly installed at one end of the moving block of the linear module 401. The connecting block 403 slides from the sliding groove 108 into the U-shaped barrel 102, and a pushing plate 402 is fixedly installed at one end of the connecting block 403 that slides into the U-shaped barrel 102, so that the pushing plate 402 is slidably installed in the U-shaped barrel 102, and the sliding groove 108 is opened at one end of the U-shaped barrel 102.

[0052] The pushing plate 402 slidably installed in the U-shaped strip barrel 102 is also slidably installed on the outer surface of the first rotating rod 302 and the second rotating rod 303, so that the pushing plate 402 can push the plastic film placed in the U-shaped strip barrel 102 toward the cutter 305 through the drive of the linear module 401.

[0053] Through the design of the linear module 401, the connecting block 403 and the pushing plate 402, when the plastic film is poured into the U-shaped strip drum 102 for shearing, the linear module 401 can be started to drive the connecting block 403 at one end of the moving block to slide horizontally in the sliding groove 108, so that the connecting block 403 can drive the pushing plate 402 installed at one end to slide the plastic film in the U-shaped strip drum 102 toward the cutter 305. The linear module 401 drives the pushing plate 402 to push the plastic film evenly close to the cutter 305, thereby ensuring the uniformity of the cutting process and reducing the shearing inconsistency caused by uneven materials. The pushing action can ensure that each piece of material can be effectively processed, thereby improving the quality of the final product. Moreover, by adjusting the speed at which the linear module 401 pushes the pushing plate 402, the staff can cut the plastic film into different sizes according to different thicknesses and types, thereby enabling the equipment to adapt to the processing needs of various materials and meet different production processes.

[0054] like Figure 7-Figure 8 As shown, the compacting mechanism 2 includes a first hydraulic rod 203, which is fixedly mounted at one end of the support frame 1. A compacting plate 204 is fixedly mounted at one end of the piston rod of the first hydraulic rod 203. The compacting plate 204 is slidably mounted at one end inside the T-shaped three-way pipe 105, so that the compacting plate 204 can block one end of the T-shaped three-way pipe 105.

[0055] An L-shaped top plate 206 slides through the middle interior of the T-shaped tee pipe 105. The L-shaped top plate 206 is fixedly mounted on one end of the piston rod of the second hydraulic rod 205. The second hydraulic rod 205 is fixedly mounted on one end of the support frame 1 and is located directly above the first hydraulic rod 203, so that after being pushed by the second hydraulic rod 205, the L-shaped top plate 206 can cover the upper half of the T-shaped tee pipe 105 and be flush with the upper surface of the compacting plate 204.

[0056] A closing cover 202 is rotatably mounted on the other end of the T-shaped three-way pipe 105, so that the closing cover 202 can block the other end of the T-shaped three-way pipe 105. A pressure sensor 207 is fixedly mounted on one end of the closing cover 202, so that when the closing cover 202 blocks the other end of the T-shaped three-way pipe 105, it can drive the pressure sensor 207 to be flush with the compacting plate 204. The signal transmitting end of the pressure sensor 207 is connected to the signal receiving end of the controller, and the control output end of the controller is electrically connected to the electric control end of the electric push rod 201. The electric push rod 201 is rotatably mounted on one end of the lower surface of the support frame 1, and the piston rod of the electric push rod 201 is rotatably connected to the closing cover 202.

[0057] The pressure sensor 207 and the controller are WIKA PPT-1 series pressure sensor 207 and Honeywell ControlEdge controller, respectively.

[0058] Through the design of the electric push rod 201, the closing cover 202, the first hydraulic rod 203, the compacting plate 204, the second hydraulic rod 205 and the pressure sensor 207, after the current batch of plastic film is cut and pushed into the T-shaped three-way pipe 105, the second hydraulic rod 205 can be started to push the L-shaped top plate 206 at one end of the piston rod, so that the L-shaped top plate 206 can be slid into the T-shaped three-way pipe 105 to block the top of the T-shaped three-way pipe 105, and then the first hydraulic rod 203 can be started again to push the compacting plate 204 at one end of the piston rod into the T-shaped three-way pipe 105, so that the plastic film can be squeezed between the compacting plate 204 and the pressure sensor 207 of the closing cover 202, and then, with the continuous pressure of the first hydraulic rod 203, the plastic film can be compressed. The plastic film is compacted into blocks, and the pressure sensor 207 will continuously monitor the pressure value during the compaction of the plastic film. When the pressure value reaches the set value, the pressure sensor 207 will send a pressure signal to the controller, and the controller will control the electric push rod 201 to pull the closing cover 202 at one end of the piston rod to flip open. As the first hydraulic rod 203 continues to push, the plastic film compacted into blocks is pushed out of the T-shaped three-way pipe 105. The real-time monitoring of pressure changes by the pressure sensor 207 enables the compacting plate 204 to evenly apply pressure to the plastic film, ensuring that the entire material is compacted under the same pressure, thereby improving the uniformity and density of the final compacted block. Real-time pressure monitoring can monitor the compaction process in real time to ensure that each step is within the control range to avoid overpressure or underpressure.

[0059] In this embodiment, in order to further optimize and quantify the processing process, some mathematical models can be introduced. The following is a specific scheme for how to incorporate mathematical models into the plastic film recycling and processing device:

[0060] 1. Shear efficiency model

[0061] In order to quantify the shearing efficiency of the shearing and pushing mechanism 3, a shearing efficiency formula can be introduced:

[0062] Shear efficiency (η) = actual shear area / theoretical shear area

[0063] Actual shearing area: the area of ​​the plastic film actually sheared off by the cutter 305 obtained through actual measurement or simulation.

[0064] Theoretical shearing area: Assuming that the cutter 305 performs shearing perfectly according to the design parameters, the area that should be sheared theoretically.

[0065] This formula can be used to evaluate the impact of the design parameters of the cutter 305 (such as rotation speed, cutter spacing, etc.) on the shearing efficiency and to optimize the design.

[0066] 2. Push speed optimization algorithm

[0067] In order to adjust the pushing speed of the pushing mechanism 4 according to different types of plastic films, a feedback-based adjustment algorithm can be used:

[0068] Pushing speed (v_n+1) = v_n+α*(target cutting size-actual cutting size)

[0069] v_n: current push speed.

[0070] v_n+1: The speed of the next push.

[0071] α: learning rate, a positive number used to control the adjustment amplitude.

[0072] Target Shear Size: The expected size of the plastic film fragments.

[0073] Actual shear size: the average size of the plastic film fragments in the current batch obtained by measurement.

[0074] This algorithm can continuously adjust the pushing speed based on real-time feedback, so that the size of the cut plastic film fragments is closer to the target value.

[0075] 3. Pressure control function

[0076] In order to precisely control the pressure exerted by the compacting mechanism 2 on the plastic film, a pressure control function can be used:

[0077] P(t)=P_target-β*(P_measured-P_target)

[0078] P(t): pressure applied at time t.

[0079] P_target: Target pressure value.

[0080] P_measured: the pressure value measured in real time by the pressure sensor 207 .

[0081] β: Adjustment coefficient, used to control the speed and stability of pressure adjustment.

[0082] This function can adjust the pressure applied by the compacting plate 204 according to the real-time measured pressure value, so that the pressure quickly approaches and stabilizes at the target pressure value.

[0083] 4. Compacted block quality prediction equation

[0084] In order to predict the mass of the plastic film block after compaction, a prediction equation can be established based on historical data and compaction parameters:

[0085] M_predicted=f(P_applied,t_compaction,M_initial)

[0086] M_predicted: predicted compaction mass.

[0087] P_applied: Applied pressure.

[0088] t_compaction: compaction time.

[0089] M_initial: Initial plastic film mass.

[0090] This equation can be learned from historical data through methods such as regression analysis and used to predict the quality of compacted blocks before compaction, thereby optimizing compaction parameters.

[0091] By incorporating these mathematical models into the design and optimization of plastic film recycling equipment, the process can be more precisely controlled, improving efficiency and product quality. These models can be used not only for theoretical analysis but also for iterative optimization in practical applications through continuous data feedback.

[0092] The working steps of this scheme are summarized and sorted out according to the above technical scheme: when the plastic film is cut into pieces, the plastic film to be processed can be poured into the U-shaped strip drum 102 and the sliding cover 106 can be pulled to close the U-shaped strip drum 102, and then the linear module 401 can be started to drive the connecting block 403 at one end of the moving block to slide horizontally in the sliding groove 108, so that the connecting block 403 can drive the pushing plate 402 installed at one end to slide the plastic film in the U-shaped strip drum 102 toward the cutter 305, and the cutter 305 can drive the first rotating rod 302 to rotate by starting the reduction motor 301, and the first rotating rod 302 rotates During the rotation, the gear 304 fixed on the outer surface will be driven to mesh with the gear 304 on the outer surface of the second rotating rod 303 to rotate together, so that the first rotating rod 302 and the second rotating rod 303 can drive the cutter 305 on the outer surface to rotate synchronously in a staggered manner to perform a shearing operation on the plastic film. The cutter 305 rotates synchronously in a staggered manner, which can achieve a more efficient shearing effect, reduce the drag on the material, avoid the jamming phenomenon during the shearing process, and ensure that the plastic film can be cut quickly and evenly. The sheared plastic film will pass through the 20° inclination of the U-shaped strip drum 102, so that the sheared plastic film will be cut quickly and evenly. The plastic film can slide into the two sets of relatively synchronously rotating spiral blades 306, and then the spiral blades 306 can push the cut plastic film into the T-shaped three-way pipe 105. After the current batch of plastic film is cut and pushed into the T-shaped three-way pipe 105, the second hydraulic rod 205 can be started to push the L-shaped top plate 206 at one end of the piston rod, and then the L-shaped top plate 206 can be slid into the T-shaped three-way pipe 105 to block the top of the T-shaped three-way pipe 105. Then, the first hydraulic rod 203 can be started again to push the compacting plate 204 at one end of the piston rod into the T-shaped three-way pipe 105, and then the plastic film can be cut into the T-shaped three-way pipe 105. The plastic film is squeezed between the compacting plate 204 and the pressure sensor 207 of the closing cover 202, and then, as the first hydraulic rod 203 continuously applies pressure, the plastic film can be compacted into blocks. During the compaction of the plastic film, the pressure sensor 207 will continuously monitor the pressure value until the pressure value reaches the set value, and the pressure sensor 207 will send a pressure signal to the controller, and the controller will control the electric push rod 201 to pull the closing cover 202 at one end of the piston rod to flip open. As the first hydraulic rod 203 continues to push, the compacted plastic film can be pushed out of the T-shaped three-way pipe 105.

[0093] In summary: Through the linkage of automated processes and precise machinery, efficient and lossless shearing and high-density compaction of plastic film are achieved. The staggered rotating cutters 305 ensure shearing efficiency and quality, and the spiral blades 306 smoothly transition the material. Combined with the precise pressure control of the hydraulic system, the processing speed of the plastic film is improved and the regularity and density of the finished product are guaranteed.

[0094] Parts not described in the present invention are the same as those in the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic film recycling and processing device, characterized in that: include: A support frame (1), wherein the upper surface of the support frame (1) is inclined at 20 degrees, a tray (101) is fixedly installed on the upper surface of the support frame (1), and a U-shaped strip drum (102) is fixedly installed on the upper surface of the tray (101), so that the U-shaped strip drum (102) is also inclined at 20 degrees through the support of the support frame (1), and two sets of flush and opposite shearing and pushing mechanisms (3) are rotatably installed in the U-shaped strip drum (102), and the outer surface of the shearing and pushing mechanism (3) is provided with a push mechanism (4) , so that the pushing mechanism (4) can push the plastic film centrally to the shearing end of the shearing pushing mechanism (3) for shearing; the lower surface of one end of the U-shaped strip drum (102) is connected and installed with a T-shaped three-way pipe (105), and one end of the tray (101) is fixedly installed with a compacting mechanism (2), the compacting end of the compacting mechanism (2) slides into the T-shaped three-way pipe (105), and the pushing end of the shearing pushing mechanism (3) can push the sheared plastic film fragments into the T-shaped three-way pipe (105); The compacting mechanism (2) includes a first hydraulic rod (203), the first hydraulic rod (203) is fixedly mounted on one end of the support frame (1), a compacting plate (204) is fixedly mounted on one end of the piston rod of the first hydraulic rod (203), the compacting plate (204) is slidably mounted on one end of the inner side of the T-shaped three-way pipe (105), so that the compacting plate (204) can block one end of the T-shaped three-way pipe (105), an L-shaped top plate (206) is slidably passed through the middle of the T-shaped three-way pipe (105), and the L-shaped top plate (206) is fixedly mounted on one end of the piston rod of the second hydraulic rod (205), the second hydraulic rod (205) is fixedly mounted on one end of the support frame (1) and is located directly above the first hydraulic rod (203), so that the L-shaped top plate (206) can be pushed by the second hydraulic rod (205) to the upper side of the T-shaped three-way pipe (105). A half-blocking cover is provided, and is flush with the upper surface of the compacting plate (204); a closing cover (202) is rotatably installed on the other end of the T-shaped three-way pipe (105), so that the closing cover (202) can block the other end of the T-shaped three-way pipe (105); a pressure sensor (207) is fixedly installed on one end of the closing cover (202), so that when the closing cover (202) blocks the other end of the T-shaped three-way pipe (105), the pressure sensor (207) can be driven to be flush with the compacting plate (204); a signal transmitting end of the pressure sensor (207) is connected to a signal receiving end of the controller; a control output end of the controller is electrically connected to an electric control end of an electric push rod (201); the electric push rod (201) is rotatably installed on one end of the lower surface of the support frame (1); and a piston rod of the electric push rod (201) is rotatably connected to the closing cover (202).

2. The plastic film recycling and processing device according to claim 1, characterized in that: Two sets of guide rail grooves (107) are provided on both sides of the upper end of the U-shaped strip drum (102), and sliding covers (106) are slidably installed in the two sets of guide rail grooves (107). The two sets of sliding covers (106) are staggered up and down, and the sliding covers (106) are made of acrylic material.

3. The plastic film recycling and processing device according to claim 2, characterized in that: The shearing and pushing mechanism (3) comprises a first rotating rod (302) and a second rotating rod (303), wherein the first rotating rod (302) and the second rotating rod (303) are both rotatably mounted on both sides of the U-shaped canister (102) and are flush with each other, one end of the first rotating rod (302) and the second rotating rod (303) pass through the U-shaped canister (102) and are rotatably mounted in the bearing seat (103), and the bearing seat (103) is fixedly mounted on one end of the U-shaped canister (102); The other ends of the first rotating rod (302) and the second rotating rod (303) extend from the other end of the U-shaped can (102) and are rotatably mounted in the sleeve (104). The sleeve (104) is fixedly mounted on the upper surface of the support frame (1). The first rotating rod (302) and the second rotating rod (303) also extend from the sleeve (104) and are rotatably mounted therein. The first rotating rod (302) and the second rotating rod (303) are also rotatably mounted therein, and the first rotating rod (302) is fixedly connected to the output shaft of the reduction motor (301). The reduction motor (301) is fixedly mounted on the upper surface of the support frame (1).

4. The plastic film recycling and processing device according to claim 3, characterized in that: The outer surfaces of the first rotating rod (302) and the second rotating rod (303) located in the sleeve (104) segment are both fixedly mounted with gears (304) and are sleeved by the sleeve (104). The two sets of gears (304) are meshed with each other, so that when the first rotating rod (302) is driven to rotate by the reduction motor (301), the gears (304) fixedly mounted on the outer surface can be meshed with the gears (304) on the outer surface of the second rotating rod (303) to rotate together, thereby enabling the first rotating rod (302) and the second rotating rod (303) to rotate relatively synchronously.

5. The plastic film recycling and processing device according to claim 4, characterized in that: A cutter (305) and a spiral blade (306) are fixedly mounted on the outer surfaces of the first rotating rod (302) and the second rotating rod (303); The two groups of cutters (305) are designed to be staggered, and the two groups of spiral blades (306) are designed to be relatively flush, so that after the cutters (305) shear the plastic film, the spiral blades (306) can push it into the T-shaped three-way pipe (105).

6. The plastic film recycling and processing device according to claim 5, characterized in that: The pushing mechanism (4) includes a linear module (401), which is fixedly installed at one end of the U-shaped canister (102). A connecting block (403) is fixedly installed at one end of the moving block of the linear module (401). The connecting block (403) slides from the sliding groove (108) into the U-shaped canister (102), and a pushing plate (402) is fixedly installed at one end of the connecting block (403) that slides into the U-shaped canister (102), so that the pushing plate (402) is slidably installed in the U-shaped canister (102). The sliding groove (108) is opened at one end of the U-shaped canister (102).

7. The plastic film recycling and processing device according to claim 6, characterized in that: The push plate (402) slidably mounted in the U-shaped can (102) is also slidably mounted on the outer surfaces of the first rotating rod (302) and the second rotating rod (303), so that the push plate (402) can push the plastic film placed in the U-shaped can (102) toward the cutter (305) through the driving of the linear module (401).

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