Plastic film recycling device

Abstract

The invention discloses a plastic film recycling device which comprises a supporting frame, a tray is fixedly installed on the upper surface of the supporting frame, a U-shaped strip barrel is fixedly installed on the upper surface of the tray, two sets of shearing and pushing mechanisms which are flush and opposite are rotatably installed in the U-shaped strip barrel, and the outer surfaces of the shearing and pushing mechanisms are slidably sleeved with pushing mechanisms; a T-shaped three-way pipe is installed on the lower surface of the other end of the U-shaped strip barrel in a communicating mode, a compaction mechanism is fixedly installed at one end of the tray lifting plate, and the compaction end of the compaction mechanism penetrates into the T-shaped three-way pipe in a sliding mode. Through the design of the compaction mechanism, the shearing and pushing mechanism and the material pushing mechanism, efficient and lossless shearing and high-density compaction of a plastic film are achieved through an automatic process and precise mechanical linkage, the shearing efficiency and quality are ensured through staggered rotating cutters, materials are smoothly transited through spiral blades, and by combining precise pressure control of a hydraulic system, the shearing efficiency and quality of the plastic film are improved. The treatment speed of the plastic film is increased, and the regularity and compactness of a finished product are also ensured.

Description

Technical Field

[0001] The 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 coating layers. Plastic packaging and plastic packaging products occupy an increasingly larger share in the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields, among which 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 the national authorized patent announcement number CN213260533U discloses a waste plastic film recycling and processing device, including a box body, an embedded block, a serrated knife and a protective shell, a discharge pipe is installed through the middle of the lower end face of the box body, and both sides of the bottom end of the box body are fixed with a feed plate, and the feed plate corresponds to the discharge pipe, and the middle of the upper end face of the box body is installed with a guide hopper, and both sides of the box body are rotatably installed with a first crushing roller and a second crushing roller through a rotating shaft, and the protective shell is fixed in the middle of the front end face of the box body, and the first gear and the second gear are rotatably installed on both sides of the protective shell through bearings, and the front end face of the protective shell is fixed with a drive box on both sides, and the embedded block is embedded in the middle of both sides of the box body, and a slot is opened in the middle of the embedded block, and a card slot is opened in the middle of the outer end of the slot, and the serrated knife is plugged into the slot. The present invention has the advantages of high crushing efficiency and effective segmented crushing, and improved 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 the conveying pipeline, resulting in interruption of the workflow 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 object of the present invention is to provide a plastic film recycling and processing device to solve the problem proposed in the above-mentioned background technology that the plastic film cannot be automatically pushed and compacted when it is sheared into pieces, which causes the plastic film to accumulate in the crushing area or the conveying pipeline, resulting in the interruption of the work flow, 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, comprising: 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 groups of flush and opposite shearing and pushing mechanisms are rotatably installed in the U-shaped strip drum, and a pushing mechanism is slidably sleeved on the outer surface of the shearing and pushing mechanism, so that the pushing mechanism can push the plastic film to the shearing end of the shearing and pushing mechanism for shearing;

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

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

[0010] Preferably, the shearing and pushing mechanism comprises 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 can and are flush with each other, one end of the first rotating rod and the second rotating rod passes through the U-shaped can and is rotatably mounted in a bearing seat, and the bearing seat is fixedly mounted at one end of the U-shaped can;

[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, gears are fixedly mounted on the outer surfaces of the first rotating rod and the second rotating rod located in the sleeve segment and are sleeved inside. The two sets of gears are meshed 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 meshed 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 the cutters can be pushed into the T-shaped three-way pipe by the spiral blades after shearing the plastic film.

[0015] Preferably, the pushing mechanism includes a linear module, which is fixedly mounted on one end of the U-shaped barrel, and a connecting block is fixedly mounted on one end of the moving block of the linear module, and the connecting block slides from a sliding groove into the U-shaped barrel, and a pushing plate is fixedly mounted on 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 a support frame, and a compacting plate is fixedly mounted on one end of a piston rod of the first hydraulic rod, and the compacting plate is slidably mounted on one end of a 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, and the L-shaped top plate is fixedly mounted on one end of the piston rod of the second hydraulic rod, and 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 after being pushed by the second hydraulic rod, and is flush with the upper surface of the compaction 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, the pressure sensor can be driven to be flush with the compaction 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 pressure sensor and Honeywell ControlEdge controller, 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 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 started 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 until the current batch of plastic film is sheared. Then 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 gear, the cutter and the spiral blade, when shearing the plastic film, the reduction motor can be started to drive the first rotating rod to rotate, and the first rotating rod will drive the gear fixed on the outer surface to mesh with the gear on the outer surface of the second rotating rod to rotate together during the rotation, so that the first rotating rod and the second rotating rod can drive the cutter on the outer surface to rotate synchronously in a staggered manner to perform the shearing operation on the plastic film, and the cutter 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;

[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. 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, the connecting block and the pushing plate, when the plastic film is poured into the U-shaped barrel 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, so that the connecting block can drive the pushing plate installed at one end to slide the plastic film in the U-shaped barrel to approach the cutter. The linear module drives the pushing plate to push the plastic film evenly 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. In addition, 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, the closing cover, the first hydraulic rod, the compacting plate, the second hydraulic rod and the 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, so that 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, and 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, so that the plastic film can be squeezed between the compacting plate and the pressure sensor of the closing cover, and then, with the continuous pressure of the first hydraulic rod, 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, and with the continuous pushing of the first hydraulic rod, the compacted plastic film is pushed out of the T-shaped three-way pipe. The real-time monitoring of pressure changes by the pressure sensor enables the compaction plate 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It 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 diagram of the structure 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 structural schematic diagram 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 three-way pipe; 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. Speed ​​reduction 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 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 barrel 102 is fixedly installed on the upper surface of the tray 101, so that the U-shaped strip barrel 102 is also inclined at 20 degrees through the support of the support frame 1, two groups of flush and opposite shearing and pushing mechanisms 3 are rotatably installed in the U-shaped strip barrel 102, and the outer surface of the shearing and pushing mechanism 3 is slidably sleeved with a pushing mechanism 4, so that the pushing mechanism 4 can push the plastic film to the shearing end of the shearing and pushing mechanism 3 for shearing;

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

[0041] Among them, two groups 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 groups of guide grooves 107. The two groups 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 barrel 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 barrel 102 and the sliding cover 106 can be pulled to close the U-shaped barrel 102, and then the pushing mechanism 4 can be started to push the plastic film in the U-shaped barrel 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 the plastic film can be sheared into pieces of different sizes by adjusting the pushing speed of the pushing mechanism 4, 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, the compacting mechanism 2 can be started to press into the T-shaped three-way pipe 105, and then the sheared plastic film can be compacted into blocks. After the set pressure value is reached during the compaction process, the compacting mechanism 2 will flip over at the other end of the T-shaped three-way pipe 105 to provide plastic blocks for compaction. 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, reducing the occupied space and improving the efficiency of subsequent processing. During the compacting 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. 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 form 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, and the bearing seat 103 is fixedly mounted at 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 installed with gears 304 and are sleeved by the sleeve 104. The two sets of gears 304 are meshed, so that when the first rotating rod 302 is driven to rotate by the reduction motor 301, the gears 304 fixedly installed 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.

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

[0048] The two groups of cutters 305 are staggered, and the two groups 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 the first rotating rod 302 will drive the gear 304 fixedly installed on the outer surface to mesh and drive 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, and 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, thereby improving the overall transportation efficiency, ensuring the timely processing of the cut material, and avoiding the situation where the U-shaped strip drum 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 push plate 402 slidably installed in the U-shaped strip barrel 102 is also slidably installed 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 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 and push the plastic film in the U-shaped strip drum 102 to approach the cutter 305. The linear module 401 drives the pushing plate 402 to push uniformly, so that the plastic film can be 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. In addition, 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, and a compacting plate 204 is fixedly mounted at one end of the piston rod of the first hydraulic rod 203, and 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 three-way 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 the L-shaped top plate 206 can cover the upper half of the T-shaped three-way pipe 105 after being pushed by the second hydraulic rod 205, and is 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 compaction 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 models of 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 pressed. The plastic film is compacted into blocks, and the pressure sensor 207 will continue to monitor the pressure value during the compaction process. Until 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. With the continuous pushing of the first hydraulic rod 203, the compacted plastic film 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 over-pressure or under-pressure.

[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 of 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 influence 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 round of 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 to make the size of the cut plastic film fragments closer to the target value.

[0075] 3. Pressure control function

[0076] In order to accurately control the pressure applied by the compacting mechanism 2 to 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 compaction plate 204 according to the pressure value measured in real time, so that it 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 the above mathematical models into the design and optimization of plastic film recycling and processing equipment, the processing process can be controlled more accurately, and the processing efficiency and product quality can be improved. These models can not only be used for theoretical analysis, but also for iterative optimization through continuous data feedback in practical applications.

[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 in the U-shaped strip drum 102 to push the plastic film to 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 cutters 305 on the outer surface to rotate synchronously in a staggered manner to shear the plastic film. The cutters 305 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. The sheared plastic film will pass through the 20° inclination of the U-shaped strip drum 102, so that the sheared plastic film The plastic film can slide into the two sets of spiral blades 306 that rotate relatively synchronously, 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, so that 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 continues to apply pressure, the plastic film can be compacted into blocks. During the compaction of the plastic film, the pressure sensor 207 will continue to 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, and 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 the 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 involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and 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 an angle of 20°, a tray (101) is fixedly mounted on the upper surface of the support frame (1), a U-shaped strip drum (102) is fixedly mounted on the upper surface of the tray (101), so that the U-shaped strip drum (102) is also inclined at 20° through the support of the support frame (1), two groups of flush and opposite shearing and pushing mechanisms (3) are rotatably mounted in the U-shaped strip drum (102), and a pushing mechanism (4) is slidably mounted on the outer surface of the shearing and pushing mechanism (3), 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; The lower surface of the other end of the U-shaped strip drum (102) is connected to a T-shaped three-way pipe (105), and a compacting mechanism (2) is fixedly installed on one end of the lifting tray (101). The compacting end of the compacting mechanism (2) slides into the T-shaped three-way pipe (105), and the pushing end of the shearing and pushing mechanism (3) can push the sheared plastic film fragments into the T-shaped three-way pipe (105).

2. A plastic film recycling and processing device according to claim 1, characterized in that: Two groups 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 groups of guide rail grooves (107). The two groups of sliding covers (106) are staggered up and down, and the sliding covers (106) are made of acrylic material.

3. The plastic film recycling device according to claim 1, 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 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 a bearing seat (103), and the bearing seat (103) is fixedly mounted on one end of the U-shaped can (102); The other end of the first rotating rod (302) and the second rotating rod (303) pass through the other end of the U-shaped strip barrel (102) and are 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 make the first rotating rod (302) 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).

4. A plastic film recycling 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 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 mesh 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. A plastic film recycling 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 staggered, and the two groups of spiral blades (306) are 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 device according to claim 1, characterized in that: The pushing mechanism (4) includes a linear module (401), which is fixedly installed at one end of the U-shaped barrel (102), and 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).

7. A plastic film recycling device according to claim 6, characterized in that: The push plate (402) slidably installed in the U-shaped strip drum (102) is also slidably installed 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 strip drum (102) toward the cutter (305) through the drive of the linear module (401).

8. The plastic film recycling device according to claim 1, characterized in that: The compacting mechanism (2) comprises a first hydraulic rod (203), the first hydraulic rod (203) being fixedly mounted on one end of the support frame (1), a compacting plate (204) being fixedly mounted on one end of the piston rod of the first hydraulic rod (203), and the compacting plate (204) being slidably mounted on one end 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).

9. The plastic film recycling device according to claim 8, characterized in that: An L-shaped top plate (206) is slidably passed through the middle of the T-shaped three-way 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 the L-shaped top plate (206) can cover the upper half of the T-shaped three-way pipe (105) after being pushed by the second hydraulic rod (205) and is flush with the upper surface of the compacting plate (204).

10. The plastic film recycling device according to claim 9, characterized in that: 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), the pressure sensor (207) can be driven to be flush with the compaction plate (204); a signal transmitting end of the pressure sensor (207) is connected to a signal receiving end of a 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 mounted 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).

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