A waste plastic film recycling device

Abstract

The application discloses a waste plastic film recycling device and relates to the technical field of plastic recycling devices.The device comprises a recycling box body, which is internally partitioned into a cleaning cavity and a discharging cavity; a cutting box assembly is fixedly installed on the upper end of the recycling box body and located directly above the cleaning cavity; a cutting assembly is provided with two groups and symmetrically installed on the cutting box assembly, used for cutting waste plastic film; a stirring assembly is installed on the recycling box body and located at the cleaning cavity, used for stirring and cleaning the cut waste plastic film; and a discharging assembly is installed on the discharging side plate, used for discharging the cleaned waste plastic film out of the recycling box body. The device realizes continuous cutting through the integrated double-station cutting mechanism, realizes the separation of the cleaning and discharging processes through the liftable cavity baffle, and cooperates with the multi-blade stirring and circulating discharging mechanism, so that the problems of cutting adhesion, incomplete cleaning and low discharging efficiency of the traditional device are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic recycling devices, in particular to a waste plastic film recycling device. BACKGROUND

[0002] With the development of modern science and technology, plastic products are widely used in daily life, especially plastic cloth, plastic film and plastic bag products are increasing, and agricultural plastic film is also gradually widely used, generating a large amount of waste plastic film every year. Since plastic is a high molecular polymer, it is chemically stable and difficult to degrade in the natural environment, causing "white pollution". At present, waste plastic film is usually treated by landfill or incineration. Landfilling of waste plastic film occupies a large area of land, and after entering the soil, it does not degrade and rot for a long time, seriously affecting the soil permeability and water permeability, and reducing the use value of the soil. The incineration process of waste plastic produces a large amount of smoke and odor, causing serious environmental pollution.

[0003] Nowadays, plastic recycling refers to recycling waste plastics by using certain recycling processes to realize the purpose of turning waste into treasure. However, the existing technology is still immature, and many types of plastic products such as plastic film cannot be recycled and utilized. In order to solve this problem, a waste plastic film recycling device is disclosed in Chinese patent No. 202110337650.5, which drives the roller to rotate by the first shaft, and the roller drives the blades on its outer wall to rotate, the blades shred the waste plastic film, the shredded plastic film falls into the water below, and the stirring assembly stirs the shredded plastic film to remove stains on the plastic film. A structure is provided for salvaging the shredded plastic film in the water.

[0004] However, in this technical solution, the plastic film is directly shredded by two groups of blades rotating, and due to the viscosity of the plastic film, the two groups of blades arranged oppositely are easily adhered to the blades during cutting of the plastic film. The cutting effect of the long plastic film is poor, and the two groups of blades arranged symmetrically can only realize cutting of the plastic film in one shredding station, which reduces the cutting efficiency and affects the plastic recycling efficiency. SUMMARY

[0005] The purpose of the present application is to provide a waste plastic film recycling device to solve the technical problem that the viscosity of the plastic film easily causes the plastic film to adhere to the blades during cutting, affecting the cutting effect.

[0006] The purpose of the present application can be achieved by the following technical solution:

[0007] A waste plastic film recycling device, comprising:

[0008] The recycling box is internally partitioned into a cleaning cavity and a discharging cavity, and the cleaning cavity and the discharging cavity are separated by a cavity baffle; a plurality of box legs are fixedly installed at the bottom of the recycling box, and a discharging side plate is fixedly arranged on the side wall of the discharging cavity away from the cleaning cavity;

[0009] The cutting-off box assembly is fixedly installed on the upper end of the recycling box and located directly above the cleaning cavity;

[0010] The cutting-off assembly is provided with two groups and symmetrically installed on the cutting-off box assembly, and is used for cutting off the waste plastic film for recycling;

[0011] The stirring assembly is installed on the recycling box and located at the cleaning cavity, and is used for stirring and cleaning the cut-off waste plastic film;

[0012] The discharging assembly is installed on the discharging side plate, and is used for discharging the cleaned waste plastic film out of the recycling box.

[0013] Preferably, the inner wall of the recycling box is provided with a vertical sliding groove for the cavity baffle to slide up and down, a box side plate is fixedly installed on the outer wall of the recycling box, a jacking air cylinder is fixedly installed on the box side plate, an output end of the jacking air cylinder is fixedly connected with a jacking connecting plate, and the jacking connecting plate is fixedly connected to the cavity baffle. The cavity baffle is driven to move up and down by the jacking air cylinder, so as to control the opening and closing of the cleaning cavity and the discharging cavity. When the waste plastic film in the cleaning cavity is cleaned, the cavity baffle is lifted up, so that the waste plastic film in the cleaning cavity enters the discharging cavity, and then the plastic film is discharged from the discharging cavity by the discharging assembly.

[0014] Preferably, the stirring assembly comprises:

[0015] The driving machine box is fixedly installed at the bottom of the recycling box, and a gear set is arranged in the driving machine box and is in meshing transmission with each other;

[0016] The stirring motor is fixedly installed at the input end of the driving machine box, and is used for driving the gear set in the driving machine box to rotate;

[0017] The stirring impeller is provided with at least two groups and is fixedly installed on the output shaft of the driving machine box, and a plurality of stirring blades for improving the stirring effect are arranged on the stirring impeller.

[0018] Preferably, the cutting-off box assembly comprises:

[0019] The cutting-off box body serves as a box support for cutting off the waste plastic film;

[0020] The mounting bracket is provided with two groups and is fixedly installed on the symmetric side walls of the cutting-off box body, and is used for mounting the cutting-off assembly;

[0021] The I-shaped support is fixedly installed at the center position of the inside of the cutting box body, and two groups of cutting assemblies are symmetrically arranged on the two sides of the I-shaped support.

[0022] The top pressing sliding seat is provided with two groups and symmetrically installed on the two sides of the I-shaped support, and is used for cutting the waste plastic film in cooperation with the cutting assembly.

[0023] Preferably, the top pressing sliding seat is provided with an arc-shaped top head matched with the cutting assembly on the side away from the I-shaped support, and two cutting stations are formed by the arc-shaped top head matched with the two groups of cutting assemblies rotating in opposite directions, so that the two plastic films can be cut at the same time, and the cutting efficiency of the plastic film is improved.

[0024] A plurality of top pressing springs are fixedly installed on the side of the top pressing sliding seat close to the I-shaped support, the top pressing spring is fixedly connected to the I-shaped support, and the top pressing spring provides a reset elastic force for the sliding of the top pressing sliding seat, so that the arc-shaped top head is always attached to the surface of the cutting assembly, and the plastic film is clamped and fed and cut and supported.

[0025] Preferably, the cutting assembly comprises:

[0026] The cylindrical sleeve is a cylindrical structure with two closed ends, which is used for feeding and conveying the plastic film by rotating and attaching to the arc-shaped top head, the outer peripheral wall of the cylindrical sleeve is provided with a plurality of arc-shaped grooves in an annular array, the radius of the arc-shaped groove is the same as that of the arc-shaped top head, and the groove bottom of the arc-shaped groove is provided with a cutter through slot for the cutter assembly to pass through;

[0027] The guide seat is provided inside the cylindrical sleeve, and the guide seat is fixedly connected with a fixed pin shaft at both ends, the fixed pin shaft penetrates through the cylindrical sleeve and is fixedly installed on the mounting bracket, and the guide seat is provided with a guide sliding groove for installing the cutter drive;

[0028] The cutter assembly is arranged inside the cylindrical sleeve and is slidingly connected to the guide seat, and is used for cutting the plastic film;

[0029] The cutter drive is installed on the guide seat and is used for driving the cutter assembly to move through the cutter through slot to cut the plastic film;

[0030] The mounting sleeve shaft is fixedly installed on the two sides of the cylindrical sleeve and is sleeved on the outer periphery of the fixed pin shaft, and the mounting sleeve shaft is rotatably installed on the side wall of the cutting box body through a bearing.

[0031] Preferably, the mounting bracket is fixedly installed with a driving motor, and a driving gear is fixedly installed on the output shaft of the driving motor.

[0032] One of the groups of mounting sleeve shafts is fixedly mounted with a driven gear, the driven gear is meshingly connected with the driving gear, the driving motor drives the mounting sleeve shaft and the cylindrical sleeve to rotate, the rotation of the cylindrical sleeve on one hand extrudes the plastic film with the arc-shaped top head to transport the plastic film, on the other hand, when the cutter through slot rotates to the cutter assembly, the cutter assembly cuts the plastic film, and the arc-shaped groove and the arc-shaped top head are matched to ensure that the cylindrical sleeve and the arc-shaped top head are closely matched to continuously transport the plastic film after the plastic film is cut, ensuring the continuity of the cutting and feeding.

[0033] Preferably, the cutter assembly comprises a guide seat plate, the guide seat plate is slidingly arranged in the cylindrical sleeve, one end of the guide seat plate is fixedly mounted with a cutting knife, the other end of the guide seat plate is fixedly connected with a plurality of seat plate guide rods, the seat plate guide rods slidingly penetrate and connect the guide seat.

[0034] Preferably, the cutter drive comprises:

[0035] The guide sliding rods are arranged in two groups and fixedly installed in the guide sliding groove along the axial direction of the cylindrical sleeve;

[0036] The driving sliding blocks are arranged in two groups and slidingly symmetrically installed on the two groups of guide sliding rods, one end of the driving sliding block close to the cutter assembly is fixedly connected with a pin shaft one, the other end of the driving sliding block is fixedly provided with a driving connecting plate;

[0037] The electric telescopic rods are respectively fixedly connected at two ends on the two groups of driving connecting plates, for driving the two groups of driving sliding blocks to synchronously slide towards or away from each other;

[0038] The pin shaft two is arranged in two groups and fixedly installed on one side of the guide seat plate close to the guide seat, the pin shaft two is rotationally connected with the pin shaft one on the same side through the driving connecting rod; the axial sliding of the cutter drive drives the radial movement of the cutter assembly, thereby driving the cutter assembly to extend out of the cylindrical sleeve to cut the plastic film, the setting of the cutter drive can drive the cutter assembly to cut in the narrow space in the cylindrical sleeve, reduce the overall size of the whole cutting device, and the fixed installation of the cutter drive and the rotary installation of the cylindrical sleeve realize the cutting of multiple cutting positions by one cutting knife, reduce the number of cutting knives, and reduce the complexity of the whole structure.

[0039] Preferably, the discharging assembly comprises:

[0040] The discharging motor is fixedly installed on the outer side wall of the recycling box body, a driving pulley is fixedly installed on the output shaft of the discharging motor;

[0041] The driven shaft is rotationally installed on the discharging side plate, a driven pulley is fixedly installed on one side of the driven shaft close to the discharging cavity;

[0042] A transmission belt is engaged with the outer periphery of a driving pulley and a driven pulley to transmit power between the driving pulley and the driven pulley.

[0043] The belt support is provided with a plurality of belt supports fixedly installed on the transmission belt, and the belt support is fixedly installed with a discharge grid for salvaging the plastic film.

[0044] The beneficial effects of the present application are as follows:

[0045] By integrating the double-station cutting mechanism, the cleaning and discharging processes are separated by the liftable cavity baffle, and the multi-blade stirring and the circulating discharging mechanism are used to solve the problems of cutting adhesion, incomplete cleaning and low discharging efficiency of the traditional device, and the device has the advantages of improving processing efficiency, ensuring cleaning quality and realizing automatic continuous operation.

[0046] By linear cooperation of the built-in guide slide rod and the driving slide block, the driving mechanism is integrated in the cylindrical sleeve, which effectively reduces the external space occupation. In the prior art, the structure layout of the cutting knife movement direction consistent with the driving direction often needs a larger axial installation space, and the present scheme shortens the axial length of the driving mechanism by the linkage conversion mechanism of axial driving and radial cutting under the same cutting stroke.

[0047] The traditional scheme adopts symmetrical arrangement of rotary blade groups for cutting, which not only needs multiple groups of cutters to operate synchronously, but also has the problem of material adhesion caused by cutter gap. The present scheme integrates material conveying and cutting functions in a single rotating part by dynamic cooperation of the rotating sleeve and the top head, and realizes multi-station cutting by time sequence cooperation of the through slot and the cutting knife, which not only reduces the number of cutters, but also avoids material falling by continuous clamping, and significantly simplifies the mechanical structure. BRIEF DESCRIPTION OF DRAWINGS

[0048] The present application will be further described below with reference to the accompanying drawings.

[0049] Figure 1 is a whole three-dimensional structure schematic diagram of a waste plastic film recycling device of the present application;

[0050] Figure 2 is a whole top view structure schematic diagram of a waste plastic film recycling device of the present application;

[0051] Figure 3 is a sectional view structure schematic diagram of the present application Figure 2 in A-A direction;

[0052] Figure 4 is a perspective view of the recycling box of the present application;

[0053] Figure 5 is a perspective view of the cutting box assembly of the present application;

[0054] Figure 6 is a top view of the cutting box assembly of the present application;

[0055] Figure 7 is a cross-sectional view of the present application in the direction of B-B; Figure 6

[0056] Figure 8 is a perspective view of the cutting assembly of the present application;

[0057] Figure 9 is a side view of the cutting assembly of the present application;

[0058] Figure 10 is a cross-sectional view of the present application in the direction of C-C; Figure 9

[0059] Figure 11 is a perspective view of the cutter drive of the present application;

[0060] Figure 12 is a side view of the cutter drive of the present application;

[0061] Figure 13 is a cross-sectional view of the present application in the direction of D-D. Figure 12

[0062] ​​​In the figure: 100, recycling box; 101, cleaning cavity; 102, discharge cavity; 103, box leg; 104, cavity baffle; 105, box side plate; 106, jacking cylinder; 107, jacking web; 108, discharge side plate; 200, cutting box assembly; 21, cutting box; 22, mounting bracket; 23, drive motor; 24, drive gear; 25, driven gear; 26, I-shaped support; 27, pressing spring; 28, pressing slide; 29, arc-shaped top head; 300, cutting assembly; 31, cylindrical sleeve; 32, arc-shaped groove; 33, cutter through slot; 34, mounting sleeve shaft; 35, fixed pin shaft; 36, guide seat; 361, guide sliding groove; 37, cutter drive; 371, guide sliding rod; 372, drive sliding block; 373, drive web; 374, electric telescopic rod; 375, pin shaft one; 376, drive connecting rod; 377, pin shaft two; 38, cutter assembly; 381, guide seat plate; 382, cutting knife; 383, seat plate guide rod; 400, stirring assembly; 41, drive case; 42, stirring motor; 43, stirring impeller; 44, stirring blade; 500, discharge assembly; 51, discharge motor; 52, driving pulley; 53, driven shaft; 54, driven pulley; 55, transmission belt; 56, belt support; 57, discharge grid. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0064] Please refer to Figures 1-13 As shown in the figure, the present application is a kind of waste plastic film recycling device, the recycling box 100 is divided into cleaning cavity 101 and discharge cavity 102, and the cavity baffle 104 controls the communication state of the two chambers. The cutting box assembly 200 is fixed on the upper end of the recycling box 100, and two groups of symmetrical cutting assemblies 300 are installed on both sides of the cutting box assembly 200. The stirring assembly 400 is arranged at the cleaning cavity 101, and the discharge assembly 500 is installed on the discharge side plate 108 to complete the material discharge.

[0065] The recycling box 100 refers to the main container with material processing function, which can be realized by steel plate welding structure, the cleaning cavity 101 and the discharge cavity 102 are separated by the sliding rail type baffle, and the structure ensures that the cleaning process is independent and controls the material transfer rhythm, and a plurality of box legs 103 for supporting are arranged at the bottom. The cutting box assembly 200 refers to the support frame carrying the cutting mechanism, which can be designed as a box type welding structure, and the spatial layout makes the cut material directly fall into the lower cleaning cavity 101. The cutting assembly 300 refers to the material cutting execution unit, which adopts a rotating cutter and an elastic pressing mechanism to form two independent cutting areas through bidirectional rotation. The stirring assembly 400 refers to the cleaning medium mixing device, which can be configured with multiple impeller structures to form a vortex to improve the cleaning efficiency. The discharge assembly 500 refers to the material transfer device, which adopts a belt conveying mechanism with a grating structure to realize solid-liquid separation and continuous discharge.

[0066] Specifically, the double cutting assembly 300 forms independent working areas on both sides of the cutting box assembly 200, and the plastic film is synchronously cut by the two groups of rotating cutters to form fragments. During the cutting process, the elastic pressing mechanism continuously applies pressure to prevent the material from sliding, and the centrifugal force of the rotating cutter reduces the surface adhesion. After the fragments directly fall into the lower cleaning cavity 101, the stirring assembly 400 forms a water flow circulation to remove surface contaminants. After cleaning, the lifting baffle is opened to make the material enter the discharge cavity 102, and the grating type conveying belt takes the plastic film fragments away from the water body to complete the recycling.

[0067] Through the above technical scheme, the application realizes the cooperative operation of continuous cutting and efficient cleaning of plastic film. The double cutting station design improves the processing capacity per unit time, and the rotating cutter and the elastic pressing mechanism cooperate to reduce the adhesion rate of the cutter. The grating type discharge mechanism improves the solid-liquid separation efficiency.

[0068] Please refer to Figures 1-4 As shown in the figure, the inner wall of the recycling box 100 is provided with a vertical sliding groove for the lifting sliding of the cavity baffle 104, the outer wall of the recycling box 100 is fixedly installed with a box side plate 105, the box side plate 105 is fixedly installed with a jacking cylinder 106, the output end of the jacking cylinder 106 is fixedly connected with a jacking connecting plate 107, and the jacking connecting plate 107 is fixedly connected to the cavity baffle 104. The cavity baffle 104 is driven by the jacking cylinder 106 to move up and down, realizing the on-off control between the cleaning cavity 101 and the discharge cavity 102. When the waste plastic film in the cleaning cavity 101 is cleaned, the cavity baffle 104 is lifted upward, so that the waste plastic film in the cleaning cavity 101 enters the discharge cavity 102, and then the plastic film is discharged from the discharge cavity 102 through the discharge assembly 500.

[0069] The vertical sliding groove refers to a vertical guide structure arranged on the inner wall of the recycling box 100, which can be implemented by a linear guide rail or a groove structure, and is used to limit the movement track of the cavity baffle 104 and ensure that it moves only in the vertical direction. The box side plate 105 refers to a support plate welded or bolted to the outer wall of the recycling box 100, which can be implemented by a steel plate or an aluminum alloy plate, and is used to provide a mounting base for the jacking cylinder 106. The jacking cylinder 106 refers to a pneumatic actuator outputting a linear thrust, which can be implemented by a single-acting or double-acting cylinder, and is used to drive the lifting action of the cavity baffle 104. The jacking connecting plate 107 refers to a transition component connecting the output end of the cylinder and the cavity baffle 104, and is used to uniformly transmit the thrust of the cylinder to the cavity baffle 104. The cavity baffle 104 refers to a movable partition plate separating the cleaning cavity 101 and the discharge cavity 102, which can be implemented by a stainless steel plate or an engineering plastic plate, and its edge is in sliding fit with the vertical sliding groove to form a sealing structure.

[0070] Specifically, during the cleaning operation, the cavity baffle 104 is in a lowered state, completely closing the passage between the cleaning cavity 101 and the discharge cavity 102. When the cleaning process is completed, the jacking cylinder 106 is started and pushes the jacking connecting plate 107 to move upward, driving the cavity baffle 104 to vertically rise along the vertical sliding groove. As the cavity baffle 104 is lifted, a material passage is formed between the bottom of the cleaning cavity 101 and the discharge cavity 102, and the cleaned plastic film automatically slides into the discharge cavity 102 under the action of gravity. In this process, the guiding action of the vertical sliding groove ensures the stability of the movement track of the cavity baffle 104, avoiding sealing failure caused by deviation. The rigid connection structure of the jacking connecting plate 107 effectively disperses the thrust of the cylinder, preventing the cavity baffle 104 from being locally deformed by stress. After completing the material transfer, the jacking cylinder 106 reverses the action to reset the cavity baffle 104, resealing the two chambers for the next batch of cleaning operation.

[0071] Compared with the prior art, the traditional device usually adopts a fixed partition plate or a manually operated plug valve to control the communication between the chambers, which has the problems of low material transfer efficiency and frequent manual operation. The present scheme realizes precise on-off control of the cleaning cavity 101 and the discharge cavity 102 through the automatic lifting mechanism driven by the cylinder, eliminating the manual intervention link. Compared with the mechanical connecting rod transmission mode, the cylinder drive has the characteristics of fast response speed and stable thrust, and can adapt to the frequent start-stop working condition requirements. In addition, the precise fit structure of the vertical sliding groove and the cavity baffle 104 effectively reduces the risk of material jamming compared with the traditional hinged partition plate.

[0072] By the technical scheme, the automatic isolation and communication of the cleaning cavity 101 and the discharging cavity 102 are realized, the plastic film cleaned can be quickly transferred to the discharging cavity 102, and the efficiency loss caused by manual carrying is avoided. The linear driving mode of the jacking air cylinder 106 ensures that the cavity baffle 104 moves stably, and the guiding effect of the vertical sliding groove effectively prevents the baffle from being stuck or not tightly sealed. The structure can reliably complete the automatic transfer of each batch of materials in the continuous operation process, and improves the processing efficiency of the whole recycling device.

[0073] Please refer to Figures 1-3 As shown in the figure, the application further proposes that the stirring assembly 400 comprises a driving machine box 41, a stirring motor 42, stirring impellers 43 and stirring blades 44. The driving machine box 41 is fixedly installed at the bottom of the recycling box body 100, and a gear set that meshes with each other is arranged in the driving machine box 41. The stirring motor 42 is fixedly installed at the input end of the driving machine box 41 and is used to drive the gear set 24 to rotate. The stirring impellers 43 are at least two groups and are fixedly installed on the output shaft of the driving machine box 41, and a plurality of stirring blades 44 are arranged on the stirring impellers 43.

[0074] Among them, the gear set in the driving machine box 41 refers to a transmission mechanism composed of at least two gears that mesh with each other, which can be realized by combining straight gears or helical gears, and the rotating power of the stirring motor 42 is transmitted to the output shaft through gear meshing. The stirring impeller 43 refers to a rotating part with curved blades, which can be made of stainless steel and has a radial blade structure, and each group of impellers can have four to six blades. The stirring blade 44 refers to a plate structure arranged on the outer edge of the impeller, which can be installed at an angle of thirty degrees with the impeller axis, and generates composite fluid motion in the axial and radial directions through rotation.

[0075] Specifically, when the stirring motor 42 drives the gear set in the driving machine box 41 to drive the output shaft to rotate, the two groups of symmetrically installed stirring impellers 43 form counter-rotating vortexes in the cleaning cavity 101. The stirring blades 44 are arranged at a specific angle and generate turbulent shear force during rotation, causing the water flow to form multidirectional turbulence. When the impeller rotates, the high-pressure area at the leading edge of the blade pushes the liquid to diffuse outward, and the low-pressure area at the trailing edge forms negative pressure to attract the liquid to backfill, forming a continuous cycle. The rotation directions of the two groups of impellers are opposite, and the vortexes generated in the middle of the cavity collide and enhance the disturbance intensity of the fluid. The surface of the stirring blade 44 can be provided with concave-convex lines to increase the friction contact with the surface of the plastic film and promote the stain separation.

[0076] Compared with the prior art, the conventional plastic film cleaning device adopts a single-shaft single-layer stirring structure, and has problems of stirring blind area and insufficient shear force. The scheme adopts a double-impeller reverse rotation design, so that the fluid forms a convection circulation in the vertical direction, and eliminates the cleaning dead angle. The rigid connection of the gear transmission reduces the power loss compared with the belt transmission, and ensures the stability of the impeller speed.

[0077] Through the above technical scheme, the application realizes full-domain coverage stirring of the fluid in the cleaning cavity 101, effectively peeling off stubborn stains attached to the surface of the plastic film. The counterflow turbulence generated by the double-impeller reverse rotation avoids the laminar flow phenomenon formed by the traditional one-way stirring. The stable output of the gear transmission guarantees the consistency of the impeller speed, preventing uneven cleaning effect caused by speed fluctuation. The special angle design of the blade reduces energy consumption while enhancing the mechanical scouring effect of the fluid on the plastic film, solving the problem of stain residue existing in the traditional cleaning device.

[0078] Please refer to Figures 5-7 As shown in the figure, the application further proposes a cutting box assembly 200 composed of a cutting box body 21, a mounting bracket 22, a I-shaped support 26 and a top pressing sliding seat 28. The cutting box body 21 serves as the box support for cutting waste plastic film; the mounting bracket 22 is provided with two groups and is fixedly installed on the symmetrical side walls of the cutting box body 21; the I-shaped support 26 is fixedly installed at the center position of the inner side of the cutting box body 21; and the top pressing sliding seat 28 is provided with two groups and is symmetrically slidingly installed on both sides of the I-shaped support 26.

[0079] Among them, the cutting box body 21 refers to a rigid frame structure for bearing the cutting assembly 300, which can be realized by welding a steel plate to form a box structure, and its internal space is used to accommodate the I-shaped support 26 and the top pressing sliding seat 28, providing a stable installation foundation for the cutting operation. The mounting bracket 22 refers to a support member fixed on the side wall of the cutting box body 21, which can be formed by welding angle steel or channel steel, and is used to symmetrically install two groups of cutting assemblies 300 to ensure balanced distribution of cutting force. The I-shaped support 26 refers to a longitudinal support beam with a I-shaped cross section, which can be formed by processing profile steel, and is fixed at the center position of the inner side of the cutting box body 21. The sliding rail structure symmetrically arranged on both sides provides sliding guidance for the top pressing sliding seat 28. The top pressing sliding seat 28 refers to a sliding module with spring return function, which can be realized by combining an aluminum alloy slider with a linear bearing, and is connected with a spring on the side close to the I-shaped support 26, and is provided with a contact surface matched with the cutting assembly 300 on the other side, so as to realize clamping and releasing of the plastic film through reciprocating sliding.

[0080] Specifically, the cutting box 21 inside is formed into a symmetrical cutting area by the I-shaped support 26, and the two sets of top pressing slides 28 keep a tendency to slide outward under the action of the spring. When the plastic film enters the cutting box 21, the top pressing slides 28 slide inward under the external pressure to compress the spring, and at this time, the cutting assembly 300 and the contact surface of the top pressing slide 28 form a clamping force to press the plastic film between them. After the cutting assembly 300 performs the cutting action, the top pressing slide 28 slides outward under the resetting force of the spring to release the cut plastic film and prepare for the next clamping. The two sets of symmetrical cutting assemblies 300 can simultaneously process two plastic film conveying paths, and the rigid support of the I-shaped support 26 ensures that the device does not deform during cutting.

[0081] Compared with the prior art, the traditional cutting device adopts the structure of a single cutter cooperating with a fixed clamping plate, and has the problems of low cutting efficiency and easy adhesion of the plastic film. The scheme cooperates the symmetrical top pressing slide 28 with the cutting assembly 300 to form two independent cutting stations, so that double plastic film processing can be completed in a single cutting cycle. The sliding cooperation structure of the I-shaped support 26 and the top pressing slide 28 realizes automatic clamping and releasing of the plastic film while ensuring cutting accuracy, avoiding efficiency loss caused by manual intervention.

[0082] Through the above technical scheme, the present application realizes synchronous cutting operation of double stations, so that the plastic film processing amount per unit time is doubled. The symmetrical distribution of the cutting stations effectively balances the vibration during equipment operation, improves the cutting accuracy and stability. The spring resetting mechanism of the top pressing slide 28 ensures that the plastic film can quickly separate from the contact surface after cutting, preventing material adhesion from affecting continuous operation. The rigid support structure of the I-shaped support 26 realizes integrated installation of the double cutting units in a limited space, solving the problem of large size of traditional multi-station equipment.

[0083] Please refer to Figures 5-7 As shown in the drawings, the present application further provides that the side of the top pressing slide 28 away from the I-shaped support 26 is provided with an arc-shaped top head 29 cooperating with the cutting assembly 300, and the arc-shaped top head 29 cooperates with the two sets of cutting assemblies 300 rotating in opposite directions to form two cutting stations, which can simultaneously cut two plastic films; a plurality of top pressing springs 27 are fixedly installed on the side of the top pressing slide 28 close to the I-shaped support 26, the top pressing spring 27 is fixedly connected to the I-shaped support 26, and the top pressing spring 27 provides a resetting elastic force for the sliding of the top pressing slide 28, so that the arc-shaped top head 29 is always in contact with the surface of the cutting assembly 300.

[0084] The arc-shaped head 29 refers to a convex structure with a circular arc contact surface, which can be made of alloy steel material with surface chrome plating treatment, and the radius of the circular arc matches the curvature of the groove on the surface of the cutting assembly 300. This structure is used to form rolling contact with the rotating cutting assembly 300 during plastic film conveying, reducing the sliding friction resistance. The top pressure spring 27 refers to an elastic element with axial compression function, which can be realized by using a coil spring or a disc spring. The spring deforms elastically when compressed, so that the top pressure slide 28 automatically resets after cutting operation, maintaining the constant contact pressure between the cutting assembly 300 and the arc-shaped head 29.

[0085] Specifically, when the two groups of counter-rotating cutting assemblies 300 are in contact with the arc-shaped heads 29 on both sides, the plastic film is clamped between the rotating cutting assembly 300 and the arc-shaped head 29 for conveying. The groove on the surface of the cutting assembly 300 forms periodic engagement with the arc-shaped head 29, and when the groove rotates to align with the head, the plastic film enters the cutting station. At this time, the top pressure spring 27 is compressed and shrinks, allowing the top pressure slide 28 to produce a small displacement to adapt to the thickness variation of the plastic film. After the cutting action is completed, the top pressure spring 27 pushes the slide to reset, so that the arc-shaped head 29 recombines with the surface of the cutting assembly 300, ensuring the continuous conveying of the next section of plastic film. The two cutting stations operate independently and process plastic films in different conveying paths to achieve synchronous cutting in double channels.

[0086] Compared with the prior art, the traditional single-station cutting device can only process single-path plastic film, and the feeding is easily interrupted due to rigid clamping at the moment of cutting. The present scheme doubles the processing efficiency through the double-station layout, the elastic support structure allows the material thickness to fluctuate while ensuring cutting accuracy, and the rotating contact method converts sliding friction into rolling friction, effectively reducing material adhesion. The fixed clamping mechanism in the prior art needs to be adjusted again after cutting, while the present scheme realizes continuous feeding through a dynamic elastic compensation mechanism.

[0087] Through the above technical scheme, the present application realizes synchronous cutting of double-channel plastic film, significantly improving the processing amount per unit time; the elastic support mechanism automatically compensates for the thickness difference of the material during cutting, avoiding the mechanism from being stuck due to overload; the rotating contact feeding method maintains the continuity of material conveying before and after cutting, solving the material breaking problem caused by traditional rigid clamping; the dynamic fitting structure effectively reduces friction loss and prolongs the service life of key components.

[0088] Please refer to Figures 8-10As shown, the application further proposes a cutting assembly 300 of a waste plastic film recycling device, which comprises a cylindrical sleeve 31, which is a cylindrical structure with both ends closed. The plastic film is fed and conveyed by rotating and fitting with the arc-shaped top head 29. The outer peripheral wall of the cylindrical sleeve 31 is provided with a plurality of arc-shaped grooves 32 in an annular array. The radius of the arc-shaped groove 32 is the same as that of the arc-shaped top head 29. The groove bottom of the arc-shaped groove 32 is provided with a cutter slot 33 through which the cutter assembly 38 passes. The guide seat 36 is arranged inside the cylindrical sleeve 31. The guide seat 36 is fixedly connected with a fixed pin shaft 35 at both ends. The fixed pin shaft 35 penetrates the cylindrical sleeve 31 and is fixedly installed on the installation bracket 22. The guide seat 36 is provided with a guide sliding groove 361 for installing the cutter drive 37. The cutter assembly 38 is arranged inside the cylindrical sleeve 31 and is slidingly connected to the guide seat 36. The cutter drive 37 is installed on the guide seat 36. The mounting sleeve shaft 34 is fixedly installed on both sides of the cylindrical sleeve 31 and is sleeved on the outer periphery of the fixed pin shaft 35. The mounting sleeve shaft 34 is rotatably installed on the side wall of the cutting box 21 through a bearing.

[0089] Wherein, the cylindrical sleeve 31 refers to a rotating part for wrapping the cutter assembly 38 and realizing material conveying, which can be processed from stainless steel pipe material. The arc-shaped grooves 32 arranged on the outer periphery form rolling contact with the arc-shaped top head 29 of the top pressing sliding seat 28, realizing clamping and conveying of the plastic film during rotation. Wherein, the guide seat 36 refers to a support structure fixedly installed inside the cylindrical sleeve 31, which can be processed from aluminum alloy profile. It is connected with the installation bracket 22 through the fixed pin shaft 35, providing a sliding track for the cutter assembly 38 and keeping its radial motion track. Wherein, the cutter drive 37 refers to a transmission mechanism for controlling the extension and retraction of the cutter assembly 38, which can be realized by an electric telescopic rod 374 cooperating with a connecting rod mechanism. It realizes the mechanical principle of converting axial sliding into radial movement, driving the cutter to complete the cutting action in the limited space inside the cylindrical sleeve 31. Wherein, the mounting sleeve shaft 34 refers to a transition part connecting the cylindrical sleeve 31 and the bearing, which can be a hollow steel shaft structure. It is supported by a bearing to realize stable rotation of the cylindrical sleeve 31, while allowing the fixed pin shaft 35 to pass through to keep the static installation state of the guide seat 36.

[0090] Specifically, the cylindrical sleeve 31 continuously rotates under the drive of the motor 23, and the outer circumferential arc-shaped groove 32 is in periodic contact with the arc-shaped top head 29 of the top pressing slide 28. When the arc-shaped groove 32 is in contact with the top head, a material clamping channel is formed, and the plastic film is continuously conveyed to the cutting position. When the cutter through slot 33 rotates to the corresponding position of the cutter assembly 38 along with the cylindrical sleeve 31, the cutter drive 37 pushes the cutter assembly 38 to extend radially along the guide seat 36, and the cutting action is completed by passing through the cutter through slot 33. After cutting is completed, the cutter assembly 38 is retracted, the arc-shaped groove 32 continues to cooperate with the top head to convey the next section of the plastic film, and the alternating cycle of feeding and cutting is realized. The guide seat 36 is kept stationary through the fixed pin shaft 35, and the cooperation of the cutter drive 37 and the guide slide groove 361 enables the cutter assembly 38 to realize directional motion in the rotating sleeve.

[0091] Compared with the prior art, the traditional cutting device adopts symmetrical rotating blades, which is easy to cause material adhesion and can only cut at a single point. However, the present scheme combines a rotating sleeve with a fixed cutter, utilizes dynamic clamping to avoid continuous contact between the material and the cutter, and uses an annular array of cutter through slots 33 to enable a single cutter to cover multiple cutting positions, and the cutting frequency linearly increases with the rotating speed of the sleeve. In the prior art, the external cutting drive mechanism leads to complex structure, and the present scheme integrates the cutter drive 37 inside the sleeve, thereby reducing the size of the device.

[0092] Through the above technical scheme, the present application realizes dynamic separation of the material and the cutter during the plastic film cutting process, effectively solves the problem of cutting adhesion, utilizes the continuous feeding and multi-point cutting capability of the rotating sleeve to enable a single cutter assembly 38 to complete high-frequency cutting operations, and significantly improves the cutting efficiency. The cooperation design of the built-in cutter drive 37 and the fixed guide seat 36 simplifies the overall structural layout while ensuring cutting accuracy.

[0093] Referring to Figures 5-10 As shown in the drawings, the present application further provides a waste plastic film recycling device, a drive motor 23 is fixedly installed on a mounting bracket 22, and a drive gear 24 is fixedly installed on an output shaft of the drive motor 23. A driven gear 25 is fixedly installed on the outer periphery of one set of mounting sleeve shafts 34, and the driven gear 25 is in meshing connection with the drive gear 24. The mounting sleeve shafts 34 and the cylindrical sleeve 31 are driven to rotate by the drive motor 23. The rotation of the cylindrical sleeve 31 on one hand extrudes the plastic film through the arc-shaped top head 29, and on the other hand cuts off the plastic film through the cutter assembly 38 when the cutter through slot 33 rotates to the cutter assembly 38. The cooperation of the arc-shaped groove 32 and the arc-shaped top head 29 ensures that the cylindrical sleeve 31 and the arc-shaped top head 29 are still in close contact to continuously convey the plastic film even after the plastic film is cut off, thereby ensuring the continuity of feeding and cutting.

[0094] The meshing connection of the driving gear 24 and the driven gear 25 refers to transmitting the power of the driving motor 23 to the mounting sleeve shaft 34 through gear transmission. The rotation of the cylindrical sleeve 31 and the extrusion fit of the arc-shaped top head 29 refer to clamping the plastic film through the friction force between the sleeve outer wall and the top head, which can be realized by using a metal sleeve with anti-skid lines on the surface, and the plastic film is continuously pulled into the cutting area through the rotary motion. The periodic alignment of the cutter through groove 33 to the cutter assembly 38 refers to that when the sleeve rotates, the multiple through grooves distributed in the circumferential direction of the sleeve pass through the cutter position one by one, so that multiple cutting actions are triggered in one complete rotation period.

[0095] Specifically, the driving motor 23 drives the cylindrical sleeve 31 to rotate at a constant speed through the gear set, and the sleeve outer wall and the arc-shaped top head 29 form a clamping area to continuously guide the plastic film into the inside of the device. When the sleeve rotates to the position where the cutter through groove 33 is aligned with the built-in cutter, the cutter assembly 38 is temporarily extended to complete the cutting, and then the sleeve continues to rotate, and the adjacent arc-shaped groove 32 and the top head are kept in contact to ensure that the cut film is still clamped and conveyed, avoiding interruption caused by material adhesion. Through the timing cooperation of sleeve rotation and cutter action, a single cutter can cover multiple cutting positions to realize continuous operation.

[0096] Compared with the prior art, the traditional scheme uses a symmetrical arrangement of rotating blade groups for cutting, which not only requires multiple cutters to operate synchronously, but also has the problem of material adhesion caused by cutter gap. The present scheme integrates the material conveying and cutting functions into a single rotating part through the dynamic cooperation of the rotating sleeve and the top head, and realizes multi-station cutting through the timing cooperation of the through groove and the cutter, which not only reduces the number of cutters, but also avoids material falling off through continuous clamping, significantly simplifying the mechanical structure.

[0097] Through the above technical scheme, the present application solves the problem of low efficiency of symmetrical blade cutting, realizes continuous material conveying and multi-position cutting through the rotating sleeve, and the cutting frequency can be increased to three times that of the traditional scheme; through the continuous clamping of the sleeve and the top head, the cutting interruption caused by the adhesion of the plastic film to the cutter is effectively prevented; the single rotating structure driven by the gear replaces the multiple blade mechanism, the equipment complexity is reduced, and the maintenance cost is greatly reduced.

[0098] Please refer to Figures 11-13 As shown in the figure, the present application further proposes that the cutter assembly 38 comprises a guide seat plate 381, the guide seat plate 381 is slidingly arranged in the cylindrical sleeve 31, one end of the guide seat plate 381 is fixedly provided with a cutting knife 382, and the other end of the guide seat plate 381 is fixedly connected with multiple seat plate guide rods 383, and the seat plate guide rods 383 slidingly penetrate and connect the guide seat 36.

[0099] The guide base plate 381 refers to a sliding base body bearing the cutting knife 382, which can be formed by processing a rectangular metal plate and installed in the track inside the cylindrical sleeve 31 through sliding fit, and can realize linear reciprocating motion in limited space. The guide rod 383 refers to a guide component connecting the guide base plate 381 and the guide seat 36, which can be formed by processing a cylindrical metal rod, and forms sliding constraint by penetrating the guide hole of the guide seat 36, thereby providing linear guide action for the radial movement of the cutting knife 382. The cutting knife 382 refers to a blade performing cutting action, which can be welded at the end of the guide base plate 381 by using a rectangular blade, and the blade edge direction is arranged perpendicular to the plastic film conveying direction.

[0100] Specifically, the axial sliding of the guide base plate 381 in the cylindrical sleeve 31 is precisely guided by the cooperation of the guide rod 383 and the guide seat 36. When the driving mechanism applies an axial thrust, the guide base plate 381 moves radially along the cylindrical sleeve 31, and the cutting knife 382 penetrates the cutting knife through slot 33 to complete the cutting action. The guide rod 383 is designed to penetrate the guide seat 36 at multiple points, effectively preventing the lateral force generated during cutting from causing the motion trajectory to deviate. After the cutting knife 382 completes the cutting, it is reset by the reverse motion of the driving mechanism. At this time, the cylindrical sleeve 31 continues to rotate to align the next set of arc-shaped grooves 32 with the cutting position, realizing continuous cutting operation of a single cutter on multiple stations.

[0101] Compared with the prior art, the conventional plastic film cutting device usually sets multiple fixed cutters on the rotating part, resulting in complex structure and large space occupation. The double-cutter structure arranged symmetrically in the prior art has the problems of easy adhesion of the cutter to the plastic film and limited cutting efficiency. The present scheme reduces the number of cutters while maintaining the continuous cutting capability by using a single cutter with a rotating cylindrical sleeve 31, and the driving part can be arranged outside the cylindrical sleeve 31 through the conversion mechanism of axial driving and radial cutting, effectively solving the problem of limited internal space.

[0102] Through the above technical scheme, the present application realizes the driving and guiding of the cutter in the small-diameter cylindrical sleeve 31, which shortens the axial length of the overall cutting mechanism. The design of a single cutter covering multiple cutting stations reduces the workload of cutter maintenance and replacement, and avoids the fluctuation of cutting quality caused by the poor synchronization of multiple cutters. The composite guide system composed of the guide base plate 381 and the guide rod 383 improves the radial movement precision of the cutting knife 382 and ensures that the cutting edge straightness meets the industrial-level recycling requirements.

[0103] Please refer to Figures 8-13As shown, the present application further proposes that the cutter drive 37 comprises guide sliding rods 371, drive sliding blocks 372, electric telescopic rods 374 and pin shafts 377, the guide sliding rods 371 are provided with two groups and fixedly installed in the guide sliding grooves 361 along the axial direction of the cylindrical sleeve 31, the drive sliding blocks 372 are provided with two groups and symmetrically installed on the two groups of guide sliding rods 371 in a sliding mode, one end of the drive sliding block 372 close to the cutter assembly 38 is fixedly connected with a pin shaft 375, the other end of the drive sliding block 372 is fixedly provided with a drive connecting plate 373, the electric telescopic rods 374 are respectively fixedly connected on the two groups of drive connecting plates 373, the pin shafts 377 are provided with two groups and fixedly installed on one side of the guide base plate 381 close to the guide base 36, and the pin shafts 377 are rotationally connected with the pin shafts 375 on the same side through drive connecting rods 376.

[0104] Wherein, the guide sliding rods 371 refer to linear guides arranged along the axial direction of the cylindrical sleeve 31, which can be made of stainless steel material, and the surface is polished to reduce the friction coefficient, so as to provide the drive sliding blocks 372 with accurate linear motion trajectory. The drive sliding blocks 372 refer to moving parts sliding along the guide sliding rods 371, which can be made of aluminum alloy material and provided with polytetrafluoroethylene wear-resistant coating, so as to realize axial displacement transmission through sliding fit. The electric telescopic rods 374 refer to power sources for moving the drive sliding blocks 372, which are used for realizing bidirectional synchronous driving. The pin shafts 375 and 377 refer to rotating pair parts connecting the drive sliding blocks 372 and the drive connecting rods 376, which can be made of alloy steel pin shafts with surface quenching treatment, so as to convert axial motion into radial motion through hinged connection. The drive connecting rods 376 refer to transmission parts connecting the pin shafts 375 and 377, which can be made of carbon steel connecting rods and provided with self-lubricating bearings, so as to realize motion direction conversion.

[0105] Specifically, when the electric telescopic rods 374 are energized to contract, the two groups of drive connecting plates 373 are synchronously pulled close, driving the drive sliding blocks 372 to slide along the guide sliding rods 371 towards the center. The axial displacement of the drive sliding blocks 372 is transmitted to the drive connecting rods 376 through the pin shafts 375, and the drive connecting rods 376 rotate around the pin shafts 377, converting the axial motion into the radial displacement of the guide base plate 381. The guide base plate 381 drives the cutting knife 382 to move radially outward, so that the cutting knife 382 passes through the cutter through slot 33 to complete the cutting action. After cutting is completed, the electric telescopic rods 374 are stretched to reset, the drive sliding blocks 372 slide reversely, and the guide base plate 381 is driven to retract into the cylindrical sleeve 31 by the drive connecting rods 376. In this process, the linear constraint of the guide sliding rods 371 ensures the stability of the motion trajectory of the drive sliding blocks 372, the hinged design of the pin shafts and the drive connecting rods 376 realizes efficient conversion of the motion direction, and the bidirectional synchronous driving of the electric telescopic rods 374 avoids mechanism jam caused by one-side force.

[0106] Compared with the prior art, the traditional cutter driving mechanism 37 directly drives the cutter by an external linear motor, resulting in an increase in the size of the device and the inability to adapt to the narrow space inside the cylindrical sleeve 31. The present scheme integrates the driving mechanism inside the cylindrical sleeve 31 through the linear cooperation of the built-in guide slide rod 371 and the driving slide block 372, effectively reducing the external space occupation. The structure layout in the prior art, in which the cutter movement direction is consistent with the driving direction, often requires a larger axial installation space, while the present scheme shortens the axial length of the driving mechanism under the same cutting stroke through the linkage conversion mechanism of axial driving and radial cutting.

[0107] Through the above technical scheme, the present application solves the problem of cutter driving 37 difficulty caused by the narrow space inside the cylindrical sleeve 31, and realizes efficient cutting action in limited space through the linkage conversion mechanism of axial driving and radial cutting. By reducing the number of cutters and optimizing the layout of the driving mechanism, the complexity of the overall structure is significantly reduced, while the continuity and stability of the cutting action are ensured. The design avoids the motion interference problem that is prone to occur in traditional multi-cutter systems, improving the reliability of the device operation.

[0108] Referring to Figures 1-3 As shown in the figure, the present application further proposes a discharging assembly 500, which comprises a discharging motor 51 fixedly installed on the outer side wall of the recycling box 100, and a driving pulley 52 installed on the output shaft of the discharging motor 51; a driven shaft 53 is rotatably installed on the discharging side plate 108, and a driven pulley 54 is installed on the side of the driven shaft 53 close to the discharging cavity 102; a transmission belt 55 is engagedly connected to the outer periphery of the driving pulley 52 and the driven pulley 54; a plurality of belt supports 56 are fixedly installed on the transmission belt 55, and a discharging grid 57 is installed on the belt support 56.

[0109] Among them, the driving pulley 52 refers to the pulley structure connected with the output shaft of the discharging motor 51, which can be made of cast iron or aluminum alloy material, and the surface is provided with a toothed structure to realize the meshing transmission with the transmission belt 55, which functions to transmit the motor power to the transmission belt 55. The driven pulley 54 refers to the pulley structure installed on the driven shaft 53, which can have the same or different diameter size as the driving pulley 52, and is used to support the transmission belt 55 to form a closed-loop motion track. The transmission belt 55 refers to an annular belt with meshing teeth on the surface, which can be made of a composite structure of rubber base material and nylon fiber reinforced layer, and realizes the synchronism of power transmission through the tooth and groove cooperation. The belt support 56 refers to a metal bracket welded or riveted on the surface of the transmission belt 55, which is used to bear the installation load of the discharging grid 57. The discharging grid 57 refers to a grid structure composed of a plurality of parallel arranged metal strips, which can be made of stainless steel, and its function is to intercept and roll up the floating plastic film when immersed in the discharging cavity 102.

[0110] Specifically, the discharge motor 51 drives the driving pulley 52 to rotate after starting, and drives the driven pulley 54 to rotate synchronously through the transmission belt 55, so that the plurality of discharge gratings 57 fixed on the transmission belt 55 move along the circular track. When the discharge grating 57 moves downward with the transmission belt 55 to the bottom of the discharge cavity 102, the grating structure is immersed in water and intercepts the floating plastic film fragments; with the continuous upward movement of the transmission belt 55, the discharge grating 57 carrying the plastic film is lifted to the unloading position outside the discharge cavity 102, and at this time the material is removed from the grating gap by mechanical hand or manual method. The continuous operation of the transmission belt 55 enables the plurality of discharge gratings 57 to alternately complete the immersion, lifting and unloading operation cycle, forming an uninterrupted material conveying process.

[0111] Compared with the prior art, the conventional plastic film recycling device adopts single mechanical arm intermittent grabbing or manual net fishing way, which has the problems of low work efficiency and high risk of material scattering. The scheme realizes multi-station continuous fishing operation through the cooperation of the transmission belt 55 and the distributed discharge grating 57, and each discharge grating 57 independently completes the material interception and lifting action, avoiding the time loss of mechanical arm reset in the traditional way. At the same time, the grating structure forms a closed carrying space during lifting, effectively preventing the material from falling off during transfer.

[0112] Through the above technical scheme, the technical problems of low efficiency and secondary pollution in the process of fishing plastic film fragments are solved. The transmission belt 55 drives the plurality of discharge gratings 57 to form a cycle operation mode, which seamlessly connects the fishing action with the material conveying process, significantly improving the processing capacity per unit time. The grating structure intercepts the material while allowing water flow, avoiding the water disturbance and material back sinking phenomenon caused by the traditional net fishing, and reducing the pollution risk of cleaning water.

[0113] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the patent coverage of the present application.

Claims

1. A waste plastic film recycling device, characterized in that, include: The recycling box (100) is internally divided into a cleaning chamber (101) and a discharge chamber (102), which are separated by a chamber baffle (104). Multiple box legs (103) are fixedly installed at the bottom of the recycling box (100), and a discharge side plate (108) is fixedly installed on the side wall of the discharge chamber (102) away from the cleaning chamber (101). The cutting box assembly (200) is fixedly installed on the upper end of the recycling box (100) and located directly above the cleaning chamber (101); The cutting assembly (300) is provided in two sets and symmetrically installed on the cutting box assembly (200) for cutting waste plastic film recycling; A stirring assembly (400), which is installed on the recycling tank (100) and located in the cleaning chamber (101), is used to stir and clean the cut waste plastic film; The discharge assembly (500), which is installed on the discharge side plate (108), is used to discharge the cleaned waste plastic film out of the recycling bin (100). The cutting box assembly (200) includes: Cut the box body (21), which serves as a box body support for cutting waste plastic film; Mounting brackets (22) are provided in two sets and are fixedly installed on the symmetrical side walls of the cutting box (21) for mounting the cutting assembly (300). I-shaped support (26) is fixedly installed at the center of the inner side of the cutting box (21), and two sets of cutting components (300) are symmetrically arranged on both sides of the I-shaped support (26); The top pressure slide (28) is provided with two sets and is symmetrically slidably installed on both sides of the I-shaped support (26) for use in conjunction with the cutting assembly (300) to cut waste plastic film; The cutting assembly (300) includes: The cylindrical sleeve (31) is a cylindrical structure closed at both ends. It feeds and conveys plastic film by rotating and fitting with the arc-shaped top (29). The outer peripheral wall of the cylindrical sleeve (31) is provided with a plurality of arc-shaped grooves (32) in a ring array. The radius of the arc-shaped grooves (32) is the same as the radius of the arc-shaped top (29). The bottom of the arc-shaped grooves (32) is provided with a cutting through groove (33) for the cutting assembly (38) to pass through. The guide seat (36) is located inside the cylindrical sleeve (31). Both ends of the guide seat (36) are fixedly connected with fixed pins (35). The fixed pins (35) pass through the cylindrical sleeve (31) and are fixedly installed on the mounting bracket (22). The guide seat (36) is provided with a guide groove (361) for installing the cutter drive (37). The cutter assembly (38), which is disposed inside the cylindrical sleeve (31) and slidably connected to the guide seat (36), is used to cut the plastic film; A cutter drive (37), which is mounted on a guide seat (36), is used to drive the cutter assembly (38) to move through the cutter slot (33) to cut the plastic film; The mounting sleeve (34) is fixedly installed on both sides of the cylindrical sleeve (31) and fitted around the outer periphery of the fixed pin (35). The mounting sleeve (34) is rotatably mounted on the side wall of the cutting box (21) via bearings. The cutter assembly (38) includes a guide plate (381), which is slidably disposed inside a cylindrical sleeve (31). A cutting blade (382) is fixedly installed at one end of the guide plate (381), and a plurality of seat plate guide rods (383) are fixedly connected to the other end of the guide plate (381). The seat plate guide rods (383) are slidably connected through the guide seat (36).

2. The waste plastic film recycling device according to claim 1, characterized in that, The inner wall of the recycling box (100) is provided with a vertical sliding groove for the cavity baffle (104) to slide up and down. A box side plate (105) is fixedly installed on the outer wall of the recycling box (100). A lifting cylinder (106) is fixedly installed on the box side plate (105). A lifting connecting plate (107) is fixedly connected to the output end of the lifting cylinder (106). The lifting connecting plate (107) is fixedly connected to the cavity baffle (104).

3. The waste plastic film recycling device according to claim 1, characterized in that, The stirring assembly (400) includes: A drive housing (41) is fixedly installed at the bottom of the recycling box (100), and a gear set that meshes with each other is provided inside the drive housing (41); The stirring motor (42) is fixedly installed at the input end of the drive housing (41) and is used to drive the gear set inside the drive housing (41) to rotate; The impeller (43) is provided with at least two sets and is fixedly installed on the output shaft of the drive housing (41). The impeller (43) is provided with a number of stirring blades (44) to improve the stirring effect.

4. The waste plastic film recycling device according to claim 1, characterized in that, The top pressure slide (28) is provided with an arc-shaped top head (29) that cooperates with the cutting assembly (300) on the side away from the I-shaped support (26). Multiple sets of top pressure springs (27) are fixedly installed on the side of the top pressure slide (28) near the I-shaped support (26). The top pressure springs (27) are fixedly connected to the I-shaped support (26). The top pressure springs (27) provide a restoring force for the sliding of the top pressure slide (28), so that the arc-shaped top head (29) is always in contact with the surface of the cutting assembly (300), thereby realizing the clamping and feeding of the plastic film and the cutting support.

5. A waste plastic film recycling device according to claim 1, characterized in that, A drive motor (23) is fixedly mounted on the mounting bracket (22), and a drive gear (24) is fixedly mounted on the output shaft of the drive motor (23). One of the mounting sleeve shafts (34) has a driven gear (25) fixedly mounted on its outer periphery, and the driven gear (25) meshes with the drive gear (24).

6. The waste plastic film recycling device according to claim 1, characterized in that, The cutter drive (37) includes: Two sets of guide slide rods (371) are provided and are fixedly installed in the guide slide groove (361) along the axial direction of the cylindrical sleeve (31); The drive slider (372) is provided with two sets and is slidably mounted on two sets of guide slide rods (371). One end of the drive slider (372) near the cutter assembly (38) is fixedly connected to a pin shaft (375), and the other end of the drive slider (372) is fixedly provided with a drive connecting plate (373). The electric telescopic rod (374) has its two ends fixedly connected to two sets of drive connecting plates (373) respectively, which are used to drive two sets of drive sliders (372) to slide synchronously towards each other or away from each other; Pin 2 (377) is provided in two sets and is fixedly installed on the side of the guide plate (381) near the guide seat (36). Pin 2 (377) is rotatably connected to pin 1 (375) on the same side through drive link (376).

7. A waste plastic film recycling device according to any one of claims 1-6, characterized in that, The discharge assembly (500) includes: The discharge motor (51) is fixedly installed on the outer wall of the recycling box (100), and the output shaft of the discharge motor (51) is fixedly installed with a drive belt reel (52). Driven shaft (53) is rotatably mounted on discharge side plate (108), and driven pulley (54) is fixedly mounted on the side of driven shaft (53) near discharge chamber (102). A drive belt (55) meshes with the outer periphery of the drive pulley (52) and the driven pulley (54) for driving connection between the drive pulley (52) and the driven pulley (54). A belt support (56) is provided in multiple and fixedly installed on the transmission belt (55), and a discharge grid (57) for retrieval of plastic film is fixedly installed on the belt support (56).

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