A waste edge film recycling device for cement bag coating lines and its usage method

Abstract

This invention discloses a waste edge film recycling device and its usage method for cement bag coating lines, belonging to the field of waste edge film recycling. It includes a frame and a roller, with a winding motor connected to the output end of the roller. Both ends of the roller's top are equipped with cutting blades for cutting the coating film. A flow mechanism for collecting waste edge film is located on the outer side of the roller's bottom. A spacing adjustment mechanism for adjusting the position of the cutting blades is located directly above the roller. By setting up the spacing adjustment mechanism and the flow mechanism, this application can adjust the positions of the cutting blades and the first and second absorption tubes according to the actual required packaging bag size using the spacing adjustment mechanism and traction components. This ensures that the cut waste edge film can be collected efficiently and accurately. Furthermore, it solves the problems of waste edge film falling and contaminating the packaging, low recycling efficiency, and increased subsequent processing costs caused by the inability to adjust the nozzle position in a timely manner according to changes in film size in traditional systems.

Description

Technical Field

[0001] This invention relates to the field of waste edge film recycling technology, and more specifically, to a waste edge film recycling device and its usage method for cement bag coating lines. Background Technology

[0002] In cement packaging bag lamination production lines, because the size of the packaging bags is fixed, in the subsequent slitting process, a cutter is needed to remove the excess and unevenly thick side film on both sides of the lamination to ensure that the finished packaging bags have uniform specifications and consistent quality. However, a large amount of film-containing composite side film is generated during the slitting process. This type of waste side film accounts for a high proportion of the total raw materials, and because it contains woven fabric fibers, lamination resin, and fillers, it is difficult to degrade naturally. If discarded at will, it can easily cause land pollution. Therefore, in the slitting process, the side film must be uniformly recycled to avoid waste of raw materials and environmental pollution.

[0003] Traditional waste film recycling methods typically employ a process combining pneumatic conveying and melt granulation. A suction nozzle and centrifugal fan are used to collect the cut waste film and transport it to the recycling system. However, due to variations in film sizes used in actual factory production, existing equipment cannot adaptively adjust to the specific location of the waste film. After the cutter completes the cutting, some waste film fails to be sucked in by the suction nozzle in time and falls to the ground, causing contamination. This not only increases the workload of subsequent cleaning processes but also significantly reduces the overall efficiency and economy of the recycling process. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a waste edge film recycling device and its usage method for cement bag coating lines, aiming to solve the above-mentioned technical problems.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A waste edge film recycling device and its usage method for cement bag coating lines include a frame, with a plurality of rollers installed inside the frame, and a winding motor correspondingly connected to the output end of each roller. Cutting blades for cutting the coating are provided at both ends of the top of each roller. A flow mechanism for collecting waste edge film is provided on the outer side of the bottom of each roller. A support mechanism is provided on the top of each roller, including a first support plate and a second support plate. A spacing adjustment mechanism for adjusting the position of the cutting blades is provided directly above the roller.

[0007] The spacing adjustment mechanism includes a limiting rod positioned directly above the roller. At both ends of the limiting rod are fixed plates and support plates that are fixedly connected to the first support plate and the second support plate, respectively. An adjusting rod that is flush with the limiting rod is rotatably connected to one side of the fixed plate. One end of the adjusting rod passes through the fixed plate and is fixedly connected to a first servo motor. Both ends of the outer surface of the limiting rod are slidably connected to adjusting seats. One end of the adjusting seat is provided with a first threaded sleeve that engages with the adjusting rod.

[0008] The circulation mechanism includes a fixed cylinder disposed on the outer side of the bottom of the roller. The two ends inside the fixed cylinder are slidably connected to the first absorption tube and the second absorption tube, respectively. The outer circular surfaces of the fixed cylinder, the first absorption tube, and the second absorption tube are all provided with traction components that cooperate with the spacing adjustment mechanism.

[0009] As a further aspect of the present invention: both ends of the outer circular surface of the adjusting rod are provided with threaded rings in opposite directions, and the first threaded sleeves located at both ends of the outer circular surface of the adjusting rod are respectively engaged with the threaded rings; the outer surfaces of the adjusting rod and the limiting rod are fixedly connected to a partition; the traction assembly includes a fixed seat fixedly connected to the middle of the top of the fixed cylinder, a U-shaped support arm fixedly connected to the fixed seat is provided at the middle of the limiting rod, a support ring is fixedly connected to one side of the outer circular surface of the first absorption tube and the second absorption tube, a sliding sleeve is fixedly connected to the other end of the adjusting seat, and a connecting arm is fixedly connected between the sliding sleeve and the support ring; an adsorption cylinder is fixedly connected to one side of the top of the first absorption tube and the second absorption tube, and a bracket is fixedly connected to one side of the top of the adsorption cylinder.

[0010] As a further aspect of the present invention: the first absorption tube and the second absorption tube have the same structure and function, but the first absorption tube is open at one end, while the second absorption tube is open at both ends; a sliding groove is fixedly connected around the inside of the fixed cylinder, and the outer circular surfaces of the first absorption tube and the second absorption tube are provided with limiting strips that cooperate with the sliding groove, and both ends of the limiting strips are provided with annular blocks that are fixedly connected to the first absorption tube, and the edges of the annular blocks are provided with slots that are adapted to the sliding groove.

[0011] As a further aspect of the present invention: the support mechanism further includes a horizontal plate disposed on the top of the roller and fixedly connected to the frame, and a first hydraulic rod and a second hydraulic rod are fixedly connected to the two ends of the bottom of the horizontal plate, and a first support plate and a second support plate are fixedly connected to one end of the first hydraulic rod and the second hydraulic rod, respectively.

[0012] As a further aspect of the present invention: a receiving box for recycling waste film is provided on one side of the outer surface of the frame, and a mixing mechanism is provided on the top side of the receiving box. The mixing mechanism includes a flow box fixedly connected to the top side of the receiving box, and a sealing plate is slidably connected to the inner top of the flow box. A discharge pipe is fixedly connected to the middle of the inner part of the sealing plate. A conveying mechanism for feeding material into the flow box is provided at one end of the second absorption pipe. The conveying mechanism includes an air pump fixedly connected to one side of the outer surface of the frame. A connecting pipe is fixedly connected to one end of the air pump, and a conveying pipe is fixedly connected to the other end. One end of the conveying pipe is threadedly sealed to the discharge pipe. A shrink tube is provided between the connecting pipe and the second absorption pipe. A receiving ring is fixedly connected to both ends of the shrink tube, and the receiving rings make the connecting pipe and the second absorption pipe fixedly connected.

[0013] As a further aspect of the present invention: the mixing mechanism further includes guide plates that are inclinedly and fixedly connected to both sides of the inner wall of the flow box; a first blocking plate and a second blocking plate are fixedly connected inside the flow box; a shearing mechanism for pre-shearing the waste edge film is provided between the first blocking plate and the second blocking plate; the shearing mechanism includes a bracket fixedly connected inside the flow box; the first shearing plate and the second shearing plate are hinged inside the bracket, and the first shearing plate and the second shearing plate have the same structure and function; a first electric telescopic rod and a second electric telescopic rod fixedly connected to the tail end of the first shearing plate and the second shearing plate are respectively provided with the first electric telescopic rod and the second electric telescopic rod fixedly connected to the flow box; three toothed plates arranged linearly are fixedly connected to the inner sides of the first shearing plate and the second shearing plate; triangular plates are fixedly connected to both sides of the inner wall of the flow box; arc-shaped rods arranged linearly are fixedly connected to the inner sides of the triangular plates, and the arc-shaped rods penetrate the interior of the three toothed plates.

[0014] As a further aspect of the present invention: the inner bottom of the flow box is also provided with a crushing mechanism for further crushing the sheared side film. The crushing mechanism includes a first drive rod and a second drive rod rotatably connected inside the flow box. One end of the first drive rod and the second drive rod both pass through the second blocking plate and are respectively fixedly connected to a first crushing roller and a second crushing roller. The other end of the first drive rod passes through the flow box and is fixedly connected to a second servo motor. A first gear is fixedly connected to the side of the first drive rod near the second servo motor. A second gear is fixedly connected to the outer circular surface of the second drive rod. The second gear meshes with the first gear.

[0015] As a further aspect of the present invention: a cleaning mechanism is provided on the outer surfaces of both the first crushing roller and the second crushing roller. The cleaning mechanism includes a first stripping blade and a second stripping blade respectively disposed on the outer surfaces of the first crushing roller and the second crushing roller. Movable components for adjusting the positions of the first stripping blade and the second stripping blade are provided on both sides of the inner wall of the flow box. The movable components include a fixed frame fixedly connected to one side of the outer surface of the second blocking plate. A threaded rod is rotatably connected to one end of the fixed frame. A fixed rod is fixedly connected to the middle of the fixed frame. The threaded rod and the fixed rod both penetrate the second blocking plate and are slidably connected to a movable seat. A second threaded sleeve that meshes with the threaded rod is provided at one end of the movable seat. A belt drive assembly that cooperates with the crushing mechanism is provided on the side of the threaded rod near the fixed frame.

[0016] As a further aspect of the present invention: a baffle is slidably connected to the front side of the receiving box; a screening mechanism for sorting waste edge film is provided on one side of the receiving box; the screening mechanism includes a limiting frame fixedly connected to one side of the inner wall of the receiving box; a screening barrel is rotatably connected inside the limiting frame; an annular plate is fixedly connected to the middle of the outer circumference of the screening barrel; a bearing cover is threadedly connected to the bottom of the screening barrel; a gear disk is fixedly connected to the top of the screening barrel; a third gear is provided on one side of the bottom of the flow box and meshes with the second gear; a rotating rod is fixedly connected inside the third gear; support seats fixedly connected to the flow box are provided at both ends of the rotating rod; a bevel gear meshing with the gear disk is provided on one side of the outer circumference of the rotating rod; a stirring rod is rotatably connected to the middle of the inside of the screening barrel; a scraper is fixedly connected to the edge of the stirring rod; a threaded seat fixedly connected to the receiving box is provided directly below the bearing cover; one end of the stirring rod passes through the bearing cover and is threadedly connected to the threaded seat.

[0017] The method of using a waste edge film recycling device for cement bag coating lines is as follows:

[0018] S1: By starting the first servo motor, the adjusting rod is driven to rotate. The first threaded sleeve drives the adjusting seat to move axially along the limiting rod, and the cutting blade is adjusted to the target width. The first and second absorption tubes are slid in the fixed cylinder by the traction component, so that the adsorption cylinder is accurately aligned with the cutting point.

[0019] S2: The support mechanism is hydraulically pressed down to make the cutting blade contact the roll of film coating. The winding motor drives the roll of film to rotate to complete the cutting. At the same time, the air pump is started to make the waste film be sealed and transported to the flow box through the shrink tube.

[0020] S3: After the waste film slides into the shearing zone through the guide plate, the shearing mechanism brings the first shearing plate and the second shearing plate closer to each other, and then the interlocking three-tooth plates shear the waste edge film, cutting it into segmented waste edge film that is easy to process later.

[0021] S4: The segmented waste film falls into the gap between the first crushing roller and the second crushing roller, the second servo motor is started, and the first drive rod drives the first gear to rotate. Then, the meshing of the first gear and the second gear causes the second drive rod to rotate, so that the two crushing rollers begin to further crush the waste edge film.

[0022] S5: After crushing, the material falls into the screening barrel. The bevel gear drives the gear disc to rotate the screening barrel centrifugally, so that qualified particles are thrown out through the screen holes to become recycled material. The stirring rod drives the scraper to scrape the inner wall to avoid screen blockage.

[0023] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0024] (1) This solution sets up a spacing adjustment mechanism and a flow mechanism. According to the actual required packaging bag size, the first servo motor is started, which makes the adjustment rod rotate, thereby driving the first threaded sleeve and the adjustment seat to move axially along the limit rod, and simultaneously adjusting the position of the cutting knife. The first absorption tube and the second absorption tube connected to the adjustment seat are adaptively adjusted to the appropriate position in the fixed cylinder. This process realizes the effect of waste edge film directly entering the absorption tube for centralized recycling. This process not only ensures that the waste edge film after cutting can be collected efficiently and accurately, but also solves the problems of waste edge film falling and contaminating, low recycling efficiency and increased subsequent processing costs caused by the inability to adjust the position of the suction nozzle in time according to the change of film size in the traditional system.

[0025] (2) By setting a first hydraulic rod and a second hydraulic rod, the first hydraulic rod and the second hydraulic rod are activated simultaneously according to the actual thickness of the packaging bag produced, so that the adjusted cutting knife can accurately contact the coating on the roller; and by designing that the two ends of the adjusting rod have oppositely oriented threaded rings, when the adjusting rod rotates clockwise, the first threaded sleeves at both ends move closer to the center in the axial direction of the limiting rod, ensuring that the adjusting seat will not disengage from the threaded area of ​​the adjusting rod; at the same time, the sliding sleeve and connecting arm connected to the adjusting seat move synchronously, causing the support ring to drive the first absorption tube and the second absorption tube to move closer to the center, ensuring that the position of the adsorption tube can be aligned with the bottom of the waste edge film's falling trajectory, and the bracket guides the waste edge film into the absorption tube; this process achieves efficient and accurate collection of the cut waste edge film, avoiding the problem that the suction nozzle cannot be adjusted synchronously due to changes in film size, preventing environmental pollution caused by the waste edge film falling and increasing the cost of manual cleaning.

[0026] (3) By setting up a conveying mechanism, a mixing mechanism, and a shearing mechanism, the waste edge film is fed into the flow box by the conveying mechanism. The waste edge film slides into the shearing zone through the inclined guide plate. Through the material buffer zone formed by the first and second blocking plates, when the film material accumulates to the trigger position, the first and second electric telescopic rods are intermittently activated, so that the first and second shearing plates move closer to each other. The three-tooth plate is used to shear the waste edge film, cutting it into segmented waste edge film that is easy to process later, avoiding the risk of long strips of waste edge film wrapping around the crusher and causing equipment damage. When the electric telescopic rod retracts, the first and second shearing plates return to the initial open position, and the arc rod enters the three-tooth plate to push out the residual waste edge film, ensuring the continuity of the shearing work and preventing interference. This not only improves the efficiency of waste edge film recycling and processing, but also effectively protects the subsequent crushing equipment from damage. Attached Figure Description

[0027] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the connection of the support mechanism of the present invention;

[0030] Figure 3 This is a schematic diagram showing the connection between the spacing adjustment mechanism and the flow mechanism of the present invention;

[0031] Figure 4 This is a cross-sectional view of the circulation mechanism of the present invention;

[0032] Figure 5 This is an internal cross-sectional view of the hybrid mechanism of the present invention;

[0033] Figure 6 This is a top view of the connection of the shearing mechanism of the present invention;

[0034] Figure 7 This is a schematic diagram of the connection of the crushing mechanism of the present invention;

[0035] Figure 8 This is a cross-sectional view of the screening mechanism of the present invention.

[0036] Figure 9 This is a schematic diagram of the connection of the cleaning mechanism of the present invention.

[0037] Figure label:

[0038] 1. Frame; 2. Rewinding motor; 21. Roller;

[0039] 3. Support mechanism; 31. Horizontal plate; 32. First hydraulic rod; 33. First support plate; 34. Second hydraulic rod; 35. Second support plate;

[0040] 4. Spacing adjustment mechanism; 41. Fixing plate; 42. Limiting rod; 43. Adjusting rod; 44. First servo motor; 45. Partition plate; 46. Adjusting seat; 47. First threaded sleeve;

[0041] 5. Cutting knife;

[0042] 6. Circulation mechanism; 61. Fixed cylinder; 62. Fixed seat; 63. U-shaped support arm; 64. Slide groove; 65. First absorption tube; 66. Second absorption tube; 67. Limiting strip; 68. Circular stop block; 69. Support ring; 610. Connecting arm; 611. Sliding sleeve; 612. Adsorption cylinder; 613. Bracket;

[0043] 7. Conveying mechanism; 71. Air pump; 72. Connecting pipe; 73. Contraction pipe; 74. Receiving ring; 75. Conveying pipe;

[0044] 8. Mixing mechanism; 81. Flow box; 82. Sealing plate; 83. Feed pipe; 84. First blocking plate; 85. Second blocking plate; 86. Guide plate;

[0045] 9. Shearing mechanism; 91. Support; 92. First shearing plate; 93. Second shearing plate; 94. Three-tooth plate; 95. First electric telescopic rod; 96. Second electric telescopic rod; 97. Triangular plate; 98. Arc rod;

[0046] 10. Crushing mechanism; 101. First drive rod; 102. First gear; 103. First crushing roller; 104. Second servo motor; 105. Second drive rod; 106. Second gear; 107. Second crushing roller;

[0047] 11. Receiving box; 111. Baffle; 112. Threaded seat;

[0048] 12. Screening mechanism; 121. Screening barrel; 122. Bearing cover; 123. Annular plate; 124. Limiting frame; 125. Gear disk; 126. Rotating rod; 127. Support base; 128. Third gear; 129. Bevel gear; 1210. Stirring rod; 1211. Scraper;

[0049] 13. Cleaning mechanism; 131. First peeling blade; 132. Belt drive assembly; 133. Fixing frame; 134. Fixing rod; 135. Threaded rod; 136. Movable seat; 137. Second threaded sleeve; 138. Second peeling blade.

[0050] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0051] The following describes in detail, with reference to the accompanying drawings and specific embodiments, a waste edge film recycling device for cement bag coating lines and its usage method provided by the present invention. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0052] like Figures 1 to 9 As shown, this embodiment of the invention provides a waste edge film recycling device and its usage method for cement bag coating lines. It includes a frame 1, with several rollers 21 installed inside the frame 1. A winding motor 2 is connected to the output end of each roller 21. Cutting blades 5 for cutting the coating are provided at both ends of the top of each roller 21. A flow mechanism 6 for collecting waste edge film is provided on the outer side of the bottom of each roller 21. A support mechanism 3 is provided on the top of each roller 21, including a first support plate 33 and a second support plate 35. A spacing adjustment mechanism 4 for adjusting the position of the cutting blades 5 is provided directly above the roller 21.

[0053] The spacing adjustment mechanism 4 includes a limiting rod 42 located directly above the roller 21. The two ends of the limiting rod 42 are respectively provided with a fixing plate 41 and a support plate fixedly connected to the first support plate 33 and the second support plate 35. An adjusting rod 43 flush with the limiting rod 42 is rotatably connected to one side of the fixing plate 41. One end of the adjusting rod 43 passes through the fixing plate 41 and is fixedly connected to a first servo motor 44. Both ends of the outer circular surface of the limiting rod 42 are slidably connected to adjusting seats 46. One end of the adjusting seat 46 is provided with a first threaded sleeve 47 that meshes with the adjusting rod 43.

[0054] The circulation mechanism 6 includes a fixed cylinder 61 located on the outer side of the bottom of the roller 21. The two ends inside the fixed cylinder 61 are slidably connected to the first absorption tube 65 and the second absorption tube 66, respectively. The outer surfaces of the fixed cylinder 61, the first absorption tube 65, and the second absorption tube 66 are all provided with traction components that cooperate with the spacing adjustment mechanism 4.

[0055] To address the problems of existing waste film recycling systems lacking adaptive adjustment capabilities, which prevent timely adjustment of the suction nozzle position based on changes in film size, leading to easy fall and contamination of waste film after cutting, low recycling efficiency, and increased subsequent processing costs, the above-mentioned technical solution is adopted. This solution mainly consists of a spacing adjustment mechanism 4 and a flow mechanism 6. When cutting the coated packaging bag, firstly, according to the required bag size, the first servo motor 44 is activated, causing the adjusting rod 43 to rotate. This causes the first threaded sleeve 47 to drive the adjusting seat 46 to move towards the center along the axial direction of the limiting rod 42. During the process of the two adjusting seats 46 moving towards the center, the fixedly connected cutting blade 5 moves synchronously to the designated position. Simultaneously, the traction component fixedly connected to the adjusting seat 46 moves synchronously, thereby driving the first absorption tube 65 and the second absorption tube 66 within the fixed cylinder 61. The internal components are aligned towards the center, allowing the first and second absorption tubes 65 and 66 to adaptively adjust to the appropriate positions according to the position of the cutting blade 5. This not only ensures that the waste edge film after subsequent cutting directly enters the first and second absorption tubes 65 and 66 for centralized recycling, but also avoids the problems of waste edge film falling off and causing pollution, low recycling efficiency, and increased subsequent processing costs due to the inability to adjust the suction nozzle position in time according to changes in film size. After all adjustments are completed, the entire spacing adjustment mechanism 4 and the position of the cutting blade 5 are lowered using the support mechanism 3, so that the cutting blade 5 touches the coating film on the roller 21, and the winding motor 2 is started to drive the roller 21 to rotate. The cutting blade 5 cuts the packaging bag on the roller 21, and as the cutting blade 5 continues to cut, the falling waste edge film falls directly into the first and second absorption tubes 65 and 66 for unified collection.

[0056] like Figure 2 , Figure 3 , Figure 4 As shown, both ends of the outer circular surface of the adjusting rod 43 are provided with threaded rings in opposite directions, and the first threaded sleeves 47 located at both ends of the outer circular surface of the adjusting rod 43 are respectively engaged with the threaded rings; the outer surfaces of the adjusting rod 43 and the limiting rod 42 are fixedly connected to a partition plate 45; the traction assembly includes a fixed seat 62 fixedly connected to the middle of the top of the fixed cylinder 61, a U-shaped support arm 63 fixedly connected to the fixed seat 62 is provided at the middle of the limiting rod 42, a support ring 69 is fixedly connected to one side of the outer circular surface of the first absorption tube 65 and the second absorption tube 66, a sliding sleeve 611 is fixedly connected to the other end of the adjusting seat 46, and a connecting arm 610 is fixedly connected between the sliding sleeve 611 and the support ring 69; an adsorption cylinder 612 is fixedly connected to one side of the top of the first absorption tube 65 and the second absorption tube 66, and a bracket 613 is fixedly connected to one side of the top of the adsorption cylinder 612.

[0057] like Figure 3 , Figure 4As shown, the first absorption tube 65 and the second absorption tube 66 have the same structure and function, but the first absorption tube 65 is open at one end, while the second absorption tube 66 is open at both ends; the inside of the fixed cylinder 61 is fixedly connected to the sliding groove 64, and the outer circular surface of the first absorption tube 65 and the second absorption tube 66 are provided with limiting strips 67 that cooperate with the sliding groove 64, and both ends of the limiting strips 67 are provided with circular blocks 68 that are fixedly connected to the first absorption tube 65, and the edge of the circular blocks 68 is provided with a groove that is adapted to the sliding groove 64.

[0058] like Figure 1 , Figure 2 , Figure 3 As shown, the support mechanism 3 also includes a horizontal plate 31 disposed on the top of the roller 21 and fixedly connected to the frame 1. The two ends of the bottom of the horizontal plate 31 are respectively fixedly connected to a first hydraulic rod 32 and a second hydraulic rod 34. One end of the first hydraulic rod 32 and the second hydraulic rod 34 are respectively fixedly connected to a first support plate 33 and a second support plate 35.

[0059] During the edge film cutting process, based on the actual thickness of the packaging bag being produced, the first hydraulic rod 32 and the second hydraulic rod 34 are simultaneously extended, causing the fixedly connected first support plate 33 and second support plate 35 to move downwards synchronously. During the downward movement of the first support plate 33 and second support plate 35, the fixed plate 41 and the support plate fixedly connected to them also move downwards synchronously, thus causing the adjusted cutting blade 5 to contact the coating film on the roller 21. When adjusting the position of the adjusting seat 46 using the adjusting rod 43, since both ends of the outer surface of the adjusting rod 43 are provided with... The threaded rings, with opposite directions, are located at both ends of the outer surface of the adjusting rod 43. The first threaded sleeves 47, located at both ends of the outer surface of the adjusting rod 43, move towards the center along the axial direction of the limiting rod 42 under the limiting action of the adjusting rod 43, the limiting rod 42, and the first threaded sleeves 47 when the adjusting rod 43 rotates clockwise. During this movement, the partition plate 45 prevents the adjusting seat 46 from disengaging from the threaded area of ​​the adjusting rod 43. As the adjusting seat 46 moves, the sliding sleeve 611 and connecting arm 610, which are fixedly connected to it, move synchronously, thereby causing the connecting arms 610 at both ends of the adjusting rod 43 to... The support ring 69 moves synchronously, causing the first absorption tube 65 and the second absorption tube 66, which are fixedly connected to the support ring 69, to move closer together. Simultaneously, because the U-shaped support arm 63 is fixedly connected to the limiting rod 42, the position of the entire fixed cylinder 61 remains unchanged. Furthermore, since the outer diameter of the annular blocks 68 connected to the two first absorption tubes 65 and the second absorption tube 66 is larger than the outlet diameter of the fixed cylinder 61, and the annular blocks 68 and the limiting strip 67 slide and engage in the groove 64 inside the fixed cylinder 61, the position of the first absorption tube 65 and the second absorption tube 66 remains unchanged. The receiving tube 66 will not detach from the fixed tube 61 when it extends outward or retracts inward; as the positions of the first absorption tube 65 and the second absorption tube 66 change, the position of the adsorption tube 612 that is fixedly connected to them changes accordingly and is aligned with the lower part of the trajectory of the waste edge film. The bracket 613 further guides the falling waste edge film into the first absorption tube 65 and the second absorption tube 66, thus avoiding the problems of existing waste edge film recycling systems lacking adaptive adjustment function, which cause the suction nozzle to be unable to adjust synchronously when the film size changes, and the waste edge film falling and polluting the environment and increasing the cost of manual cleaning.

[0060] like Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, a receiving box 11 for recycling waste film is provided on one side of the outer surface of the frame 1. A mixing mechanism 8 is provided on one side of the top of the receiving box 11. The mixing mechanism 8 includes a flow box 81 fixedly connected to one side of the top of the receiving box 11. A sealing plate 82 is slidably connected to the inner top of the flow box 81. A discharge pipe 83 is fixedly connected to the middle of the inner part of the sealing plate 82. A conveying mechanism 7 for feeding material into the flow box 81 is provided at one end of the second absorption pipe 66. The conveying mechanism 7 includes a vacuum pump 71 fixedly connected to one side of the outer surface of the frame 1. A connecting pipe 72 is fixedly connected to one end of the vacuum pump 71, and a conveying pipe 75 is fixedly connected to the other end. One end of the conveying pipe 75 is threadedly sealed to the discharge pipe 83. A shrinkage pipe 73 is provided between the connecting pipe 72 and the second absorption pipe 66. A receiving ring 74 is fixedly connected to both ends of the shrinkage pipe 73, and the connecting pipe 72 and the second absorption pipe 66 are fixedly connected through the receiving ring 74.

[0061] like Figure 1 , Figure 5 , Figure 6 As shown, the mixing mechanism 8 also includes guide plates 86 that are inclinedly and fixedly connected to both sides of the inner wall of the flow box 81. A first blocking plate 84 and a second blocking plate 85 are fixedly connected inside the flow box 81. A shearing mechanism 9 for pre-shearing waste edge film is provided between the first blocking plate 84 and the second blocking plate 85. The shearing mechanism 9 includes a bracket 91 fixedly connected inside the flow box 81. A first shearing plate 92 and a second shearing plate 93 are hinged inside the bracket 91. The first shearing plate 92 and the second shearing plate 93 have the same structure and function. A first electric telescopic rod 95 and a second electric telescopic rod 96 fixedly connected to the flow box 81 are respectively provided at one end of the tail of the first shearing plate 92 and the second shearing plate 93. A three-toothed plate 94 arranged in a linear pattern is fixedly connected to the inner side of the first shearing plate 92 and the second shearing plate 93. A triangular plate 97 is fixedly connected to both sides of the inner wall of the flow box 81. An arc-shaped rod 98 arranged in a linear pattern is fixedly connected to the inner side of the triangular plate 97. The arc-shaped rod 98 penetrates the interior of the three-toothed plate 94.

[0062] When the spacing adjustment mechanism 4 drives the second absorption tube 66 to retract towards the center, the elastic shrink tube 73 stretches synchronously under the fixation of the receiving ring 74, forming an adaptive sealing channel. After the vacuum pump 71 is started, the negative pressure suction force draws the cut waste film from the adsorption cylinder 612, causing the waste film to flow sequentially through the first absorption tube 65, the second absorption tube 66 into the shrink tube 73, then through the conveying pipe 75, and finally into the flow box 81 through the threaded sealing discharge pipe 83. This process solves the problem of pipe detachment caused by position adjustment in traditional equipment and improves the sealing reliability of the conveying pipe. The waste film entering the flow box 81 slides into the shearing zone through the inclined guide plate 86. The first blocking plate 84 and the second blocking plate 85 form a material buffer zone. When the film material accumulates to the trigger position, the first electric telescopic rod 95 and the second electric telescopic rod 96 are intermittently activated to extend or shorten them. When the first electric telescopic rod 95 and the second electric telescopic rod 96 extend, the first... The first shear plate 92 and the second shear plate 93 approach each other and use the three-tooth plate 94 to shear the waste edge film, cutting the long strip of waste edge film into segmented waste edge film. This improves the subsequent crushing effect of the segmented waste edge film and avoids the situation where the edge film is too long and gets tangled on the crusher, causing damage to the related crushing equipment. When the first electric telescopic rod 95 and the second electric telescopic rod 96 retract, the first shear plate 92 and the second shear plate 93 return to their initial positions, that is, they open outwards. At this time, the arc-shaped rod 98 enters the three-tooth plate 94 from the internal slots of the first shear plate 92 and the second shear plate 93, respectively, and pushes out the waste edge film remaining on the three-tooth plate 94, ensuring the continuous operation of subsequent shearing work. During the process of processing the waste edge film of the first shear plate 92 and the second shear plate 93, the arc-shaped rod 98 is actually a ring shape. When the first shear plate 92 and the second shear plate 93 open, they can move normally within the arc-shaped rod 98 without interfering with its movement.

[0063] like Figure 5 , Figure 6 , Figure 7 As shown, the bottom of the flow box 81 is also provided with a crushing mechanism 10 for further crushing the sheared side film. The crushing mechanism 10 includes a first drive rod 101 and a second drive rod 105 rotatably connected inside the flow box 81. One end of the first drive rod 101 and the second drive rod 105 both pass through the second blocking plate 85 and are respectively fixedly connected to the first crushing roller 103 and the second crushing roller 107. The other end of the first drive rod 101 passes through the flow box 81 and is fixedly connected to the second servo motor 104. The side of the first drive rod 101 near the second servo motor 104 is fixedly connected to the first gear 102. The outer circular surface of the second drive rod 105 is fixedly connected to the second gear 106. The second gear 106 meshes with the first gear 102.

[0064] like Figure 7 , Figure 9As shown, a cleaning mechanism 13 is provided on the outer surface of the first crushing roller 103 and the second crushing roller 107. The cleaning mechanism 13 includes a first stripping blade 131 and a second stripping blade 138 respectively provided on the outer surface of the first crushing roller 103 and the second crushing roller 107. Movable components for adjusting the position of the first stripping blade 131 and the second stripping blade 138 are provided on both sides of the inner wall of the flow box 81. The movable components include a fixed frame 133 fixedly connected to one side of the outer surface of the second blocking plate 85. A threaded rod 135 is rotatably connected to one end of the inner side of the fixed frame 133. A fixed rod 134 is fixedly connected to the middle of the inner side of the fixed frame 133. The threaded rod 135 and the fixed rod 134 both pass through the second blocking plate 85 and are slidably connected to a movable seat 136. A second threaded sleeve 137 that meshes with the threaded rod 135 is provided at one end of the movable seat 136. A belt drive assembly 132 that works with the crushing mechanism 10 is provided on the side of the threaded rod 135 near the fixed frame 133.

[0065] The crushing mechanism 10 is also equipped with an intelligent control module to optimize the crushing process of waste edge film. First, taking the axis of the first crushing roller 103 as a reference, its outer surface is considered a reference circle, and the theoretical maximum contact area is calculated based on the diameter parameter of this circle. In actual operation, after the segmented waste edge film is fed into the flow box 81 and sheared, it falls directly onto the first crushing roller 103 and the second crushing roller 107. At this time, the second servo motor 104 is activated, driving the first gear 102 to rotate via the first drive rod 101. Then, the meshing of the first gear 102 and the second gear 106 causes the second drive rod 105 to rotate, thereby enabling the two crushing rollers to further crush the waste edge film. Simultaneously, the load current value of the second servo motor 104 is collected in real time and converted into torque data. The actual coverage rate of the waste edge film is determined based on the ratio of the torque data to the theoretical maximum contact area. To ensure optimal operation, when the actual coverage exceeds the preset safety threshold of 75%, the system gradually reduces the rotational speed in increments of 1 / 100 of the reference circle diameter. Conversely, when the actual coverage falls below the high-efficiency operating threshold of 40%, the rotational speed is increased in increments of 1 / 200 of the reference circle circumference. Furthermore, during the rotation of the first drive rod 101 and the second drive rod 105, the belt drive assembly 132 drives the threaded rod 135 to rotate within the fixed frame 133. Under the limiting action of the second threaded sleeve 137 and the fixed rod 134, the movable seat 136 moves axially along the fixed rod 134, allowing the first peeling blade 131 and the second peeling blade 138 located on the outer surfaces of the first crushing roller 103 and the second crushing roller 107 to effectively peel off residual waste film, preventing it from entangled and affecting the crushing effect. Finally, the system records the crushing throughput per unit time under different coverage rates and automatically locks the coverage range that maximizes the throughput as the new high-efficiency operating threshold, ensuring the efficiency and stability of the entire crushing process.

[0066] like Figure 5 , Figure 7 , Figure 8 As shown, a baffle 111 is slidably connected to the front side of the receiving box 11. A screening mechanism 12 for sorting waste edge film is provided on one side of the receiving box 11. The screening mechanism 12 includes a limiting frame 124 fixedly connected to one side of the inner wall of the receiving box 11. A screening barrel 121 is rotatably connected inside the limiting frame 124. An annular plate 123 is fixedly connected to the middle of the outer circumference of the screening barrel 121. A bearing cover 122 is threadedly connected to the bottom of the screening barrel 121. A gear disk 125 is fixedly connected to the top of the screening barrel 121. A third gear that meshes with the second gear 106 is provided on one side of the bottom of the flow box 81. Gear 128, the third gear 128 is internally fixedly connected to a rotating rod 126, the two ends of the rotating rod 126 are provided with support seats 127 fixedly connected to the flow box 81, and a bevel gear 129 is provided on one side of the outer circular surface of the rotating rod 126, which meshes with the gear disk 125; a stirring rod 1210 is rotatably connected to the middle of the inside of the screening barrel 121, a scraper 1211 is fixedly connected to the edge of the stirring rod 1210, and a threaded seat 112 fixedly connected to the receiving box 11 is provided directly below the bearing cover 122, and one end of the stirring rod 1210 passes through the bearing cover 122 and is threadedly connected to the threaded seat 112.

[0067] After the crushed material from the crushing mechanism 10 falls into the screening drum 121, it undergoes efficient centrifugal screening via a power linkage mechanism. This mechanism is driven by a second gear 106 driving a third gear 128, which in turn rotates the rotating rod 126 within the support base 127. The rod rotates through a bevel gear 129 meshing with a gear disc 125, causing the screening drum 121 to rotate at high speed around its own axis. To ensure stable operation, the screening drum 121 employs a double-point support structure consisting of an annular plate 123 and a limiting frame 124, controlling radial runout within ±0.1mm. Under the centrifugal force generated by the high-speed rotation, qualified particles smaller than Φ3mm pass through the screen holes and fall into the receiving box 11 below, becoming directly reusable recycled material. Meanwhile, insufficiently crushed coarse material larger than Φ3mm remains within the screening drum 121, achieving automatic sorting. To prevent material accumulation and screen clogging, the stirring rod 1210 drives the scraper 1211 to continuously scrape the inner wall of the screening barrel 121, controlling the accumulation height to be less than 5mm. At the same time, a 0.2mm gap is provided between the edge of the scraper 1211 and the screen hole, which can forcibly peel off the adsorbed fine powder, reduce the screen clogging rate, and significantly improve screening efficiency. Compared with the problem of qualified material being mixed with coarse material due to accumulation in traditional vibrating screens, this operation process improves the recovery rate of qualified recycled material through dynamic stirring. When recycling coarse material, the bottom of the screening barrel 121 is exposed after sliding open the baffle 111. The bearing cover 122 is rotated to disengage the threaded connection and detach from the screening barrel 121. Then, the stirring rod 1210 is rotated in the opposite direction to disengage it from the threaded seat 112, and the bearing cover 122 can be removed as a whole, easily completing the coarse material recycling, thereby improving the overall equipment maintenance efficiency and ease of use.

[0068] The method of using a waste edge film recycling device for cement bag coating lines is as follows:

[0069] S1: By starting the first servo motor 44, the adjusting rod 43 is driven to rotate. The first threaded sleeve 47 drives the adjusting seat 46 to move axially along the limiting rod 42, and the cutting blade 5 is adjusted to the target width. The first absorption tube 65 and the second absorption tube 66 are slid in the fixed cylinder 61 through the traction component, so that the adsorption cylinder 612 is precisely aligned with the cutting point.

[0070] S2: The support mechanism 3 is hydraulically pressed down to make the cutting blade 5 contact the roll 21 to coat the film. The winding motor 2 drives the roll 21 to rotate to complete the cutting. At the same time, the vacuum pump 71 is started to seal and transport the waste film to the flow box 81 through the shrink tube 73.

[0071] S3: After the waste film slides into the shearing zone through the guide plate 86, the shearing mechanism 9 is used to bring the first shearing plate 92 and the second shearing plate 93 closer to each other, and then the three-toothed plate 94 meshes with each other to shear the waste edge film, cutting it into segmented waste edge film that is easy to process later.

[0072] S4: The segmented waste film falls into the gap between the first crushing roller 103 and the second crushing roller 107. The second servo motor 104 is started, and the first gear 102 is driven to rotate through the first drive rod 101. Then, the meshing of the first gear 102 and the second gear 106 is used to make the second drive rod 105 rotate, so that the two crushing rollers begin to further crush the waste edge film.

[0073] S5: After crushing, the material falls into the screening barrel 121. The bevel gear 129 drives the gear disk 125 to rotate the screening barrel centrifugally, so that qualified particles are thrown out through the screen holes to become recycled material. The stirring rod 1210 drives the scraper 1211 to scrape the inner wall to avoid screen hole blockage.

[0074] In use, this invention first activates the first servo motor 44 according to the required packaging bag size, causing the adjusting rod 43 to rotate. This, in turn, drives the adjusting seat 46 to move axially along the limiting rod 42 via the first threaded sleeve 47, simultaneously adjusting the position of the cutting blade 5. Simultaneously, the traction assembly connected to the adjusting seat 46 drives the first absorption tube 65 and the second absorption tube 66 to move synchronously within the fixed cylinder 61, ensuring they can adaptively adjust to the appropriate position according to the cutting blade 5. This allows the cut waste film to directly enter the absorption tube, avoiding the waste film falling and contaminating the traditional system due to the inability to adjust the suction nozzle position in time, as well as the resulting low efficiency. Subsequently, the support mechanism 3 lowers the entire spacing adjustment mechanism 4 and the cutting blade 5, causing the cutting blade to touch the coating on the roller 21 and activating the winding motor 2, which rotates the roller 21 to complete the cutting operation. During this process, when the spacing adjustment mechanism 4 drives the second absorption tube 66 to converge towards the center, the elastic shrink tube 73 simultaneously stretches to form a sealed channel. The vacuum pump 71 is then activated, utilizing negative pressure to suction... The waste edge film is sucked in from the adsorption cylinder 612 and finally enters the flow box 81 through the conveying pipe 75. The waste edge film entering the flow box 81 slides into the shearing zone through the inclined guide plate 86. The first shearing plate 92 and the second shearing plate 93, controlled by the first electric telescopic rod 95 and the second electric telescopic rod 96, move closer to each other. The waste edge film is sheared by the three-tooth plate 94, making it segmented waste edge film, which is convenient for subsequent crushing. Then, the segmented waste edge film falls into the crushing mechanism 10. The intelligent control module establishes a reference circle model based on the axis of the first crushing roller 103 to calculate the theoretical maximum contact area, and monitors the load current of the second servo motor 104 in real time to convert it into torque data to determine the actual coverage rate of the waste edge film. The crushing roller speed is automatically adjusted according to the coverage rate to ensure the best operating state. The belt drive assembly 132 drives the threaded rod 135 to rotate, causing the movable seat 136 to move axially along the fixed rod 134. The first peeling knife 131 and the second peeling knife 138 remove the waste edge film remaining on the surface of the crushing roller to maintain the efficient crushing effect. Finally, the crushed waste film falls into the screening barrel 121, where efficient centrifugal screening is achieved through a power linkage mechanism. Qualified particles with a particle size of less than Φ3mm are thrown out through the screen holes to become recycled material, while coarse material remains in the barrel. The stirring rod 1210 drives the scraper 1211 to continuously scrape the inner wall of the screening barrel 121 to prevent material accumulation and screen blockage.

[0075] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A waste edge film recycling device for a cement bag coating line, comprising a frame, wherein a plurality of rollers are installed inside the frame, and a winding motor is correspondingly connected to the output end of each roller; characterized in that, Both ends of the top of the roller are equipped with cutting blades for cutting the coating. The outer side of the bottom of the roller is equipped with a flow mechanism for collecting waste edge film. The top of the roller is equipped with a support mechanism, which includes a first support plate and a second support plate. A spacing adjustment mechanism for adjusting the position of the cutting blades is provided directly above the roller. The spacing adjustment mechanism includes a limiting rod positioned directly above the roller. At both ends of the limiting rod are fixed plates and support plates, respectively, which are fixedly connected to the first and second support plates. An adjusting rod, flush with the limiting rod, is rotatably connected to one side of the fixed plate. One end of the adjusting rod passes through the fixed plate and is fixedly connected to a first servo motor. Adjusting seats are slidably connected to both ends of the outer surface of the limiting rod. One end of each adjusting seat has a first threaded sleeve that engages with the adjusting rod. Both ends of the outer surface of the adjusting rod are provided with threaded rings in opposite directions, and a first threaded sleeve is located at each end of the outer surface of the adjusting rod. The threaded sleeves are respectively engaged with the threaded rings; the outer surfaces of the adjusting rod and the limiting rod are fixedly connected to the partition; the traction assembly includes a fixed seat fixedly connected to the middle of the top of the fixed cylinder, a U-shaped support arm fixedly connected to the fixed seat at the middle of the limiting rod, a support ring fixedly connected to one side of the outer circular surface of the first absorption tube and the second absorption tube, a sliding sleeve fixedly connected to the other end of the adjusting seat, and a connecting arm fixedly connected between the sliding sleeve and the support ring; an adsorption cylinder is fixedly connected to one side of the top of the first absorption tube and the second absorption tube, and a bracket is fixedly connected to one side of the top of the adsorption cylinder; The circulation mechanism includes a fixed cylinder located on the outer side of the bottom of the roller. The two ends of the fixed cylinder are slidably connected to the first absorption tube and the second absorption tube, respectively. The outer surfaces of the fixed cylinder, the first absorption tube, and the second absorption tube are all equipped with traction components that cooperate with the spacing adjustment mechanism. The first absorption tube and the second absorption tube have the same structure and function, but the first absorption tube is open at one end, while the second absorption tube is open at both ends. The inside of the fixed cylinder is fixedly connected to a sliding groove. The outer surfaces of the first absorption tube and the second absorption tube are equipped with limiting strips that cooperate with the sliding groove. Both ends of the limiting strips are equipped with annular blocks that are fixedly connected to the first absorption tube. The edges of the annular blocks are provided with slots that are adapted to the sliding groove. The bottom of the flow box is also equipped with a crushing mechanism for further crushing the sheared side film. The crushing mechanism includes a first drive rod and a second drive rod rotatably connected inside the flow box. One end of the first drive rod and the second drive rod both pass through the second blocking plate and are respectively fixedly connected to the first crushing roller and the second crushing roller. The other end of the first drive rod passes through the flow box and is fixedly connected to the second servo motor. A first gear is fixedly connected to the side of the first drive rod near the second servo motor. A second gear is fixedly connected to the outer circular surface of the second drive rod. The second gear meshes with the first gear. A baffle is slidably connected to the front side of the receiving box. A screening mechanism for sorting waste film is set on one side of the receiving box. The screening mechanism includes a limiting frame fixedly connected to one side of the inner wall of the receiving box. A screening barrel is rotatably connected inside the limiting frame. An annular plate is fixedly connected to the middle of the outer circle of the screening barrel. A bearing cover is threadedly connected to the bottom of the screening barrel. A gear disk is fixedly connected to the top of the screening barrel. A third gear is set on one side of the bottom of the flow box and meshes with the second gear. A rotating rod is fixedly connected inside the third gear. Support seats fixedly connected to the flow box are set at both ends of the rotating rod. A bevel gear meshes with the gear disk on one side of the outer circle of the rotating rod. A stirring rod is rotatably connected to the middle of the inside of the screening barrel. A scraper is fixedly connected to the edge of the stirring rod. A threaded seat fixedly connected to the receiving box is set directly below the bearing cover. One end of the stirring rod passes through the bearing cover and is threadedly connected to the threaded seat.

2. The waste edge film recycling device for cement bag coating lines according to claim 1, characterized in that, The support mechanism also includes a horizontal plate disposed on the top of the roller and fixedly connected to the frame. A first hydraulic rod and a second hydraulic rod are fixedly connected to the two ends of the bottom of the horizontal plate, and a first support plate and a second support plate are fixedly connected to one end of the first hydraulic rod and the second hydraulic rod, respectively.

3. A waste edge film recycling device for a cement bag coating line according to claim 2, characterized in that, A receiving box for recycling waste film is provided on one side of the outer surface of the frame. A mixing mechanism is provided on the top side of the receiving box. The mixing mechanism includes a flow box fixedly connected to the top side of the receiving box. A sealing plate is slidably connected to the top of the flow box. A discharge pipe is fixedly connected to the middle of the inner part of the sealing plate. A conveying mechanism for feeding material into the flow box is provided at one end of the second absorption pipe. The conveying mechanism includes an air pump fixedly connected to one side of the outer surface of the frame. A connecting pipe is fixedly connected to one end of the air pump, and a conveying pipe is fixedly connected to the other end. One end of the conveying pipe is threadedly sealed to the discharge pipe. A shrink tube is provided between the connecting pipe and the second absorption pipe. Both ends of the shrink tube are fixedly connected to receiving rings, and the connecting pipe and the second absorption pipe are fixedly connected through the receiving rings.

4. A waste edge film recycling device for a cement bag coating line according to claim 3, characterized in that, The mixing mechanism also includes guide plates that are inclinedly and fixedly connected to both sides of the inner wall of the flow box. A first blocking plate and a second blocking plate are fixedly connected inside the flow box. A shearing mechanism for pre-shearing the waste edge film is provided between the first blocking plate and the second blocking plate. The shearing mechanism includes a bracket fixedly connected inside the flow box. The first shearing plate and the second shearing plate are hinged inside the bracket, and the first shearing plate and the second shearing plate have the same structure and function. A first electric telescopic rod and a second electric telescopic rod fixedly connected to the flow box are respectively provided at one end of the tail of the first shearing plate and the second shearing plate. Three toothed plates arranged in a linear pattern are fixedly connected to the inner side of the first shearing plate and the second shearing plate. Triangular plates are fixedly connected to both sides of the inner wall of the flow box. Arc-shaped rods arranged in a linear pattern are fixedly connected to the inner side of the triangular plates, and the arc-shaped rods penetrate the interior of the three toothed plates.

5. A waste edge film recycling device for a cement bag coating line according to claim 4, characterized in that, Cleaning mechanisms are provided on the outer surfaces of the first and second crushing rollers. The cleaning mechanisms include a first stripping blade and a second stripping blade respectively disposed on the outer surfaces of the first and second crushing rollers. Movable components for adjusting the positions of the first and second stripping blades are provided on both sides of the inner wall of the flow box. The movable components include a fixed frame fixedly connected to one side of the outer surface of the second blocking plate. A threaded rod is rotatably connected to one end of the fixed frame, and a fixed rod is fixedly connected to the middle of the fixed frame. The threaded rod and the fixed rod both pass through the second blocking plate and are slidably connected to a movable seat. A second threaded sleeve that meshes with the threaded rod is provided at one end of the movable seat. A belt drive assembly that works with the crushing mechanism is provided on the side of the threaded rod near the fixed frame.

6. A method of using the waste edge film recycling device for a cement bag coating line as described in claim 5, characterized in that, The usage method includes the following steps: S1: By starting the first servo motor, the adjusting rod is driven to rotate. The first threaded sleeve drives the adjusting seat to move axially along the limiting rod, and the cutting blade is adjusted to the target width. The first and second absorption tubes are slid in the fixed cylinder by the traction component, so that the adsorption cylinder is accurately aligned with the cutting point. S2: The support mechanism is hydraulically pressed down to make the cutting blade contact the roll of film coating. The winding motor drives the roll of film to rotate to complete the cutting. At the same time, the air pump is started to make the waste film be sealed and transported to the flow box through the shrink tube. S3: After the waste film slides into the shearing zone through the guide plate, the shearing mechanism brings the first shearing plate and the second shearing plate closer to each other, and then the interlocking three-tooth plates shear the waste edge film, cutting it into segmented waste edge film that is easy to process later. S4: The segmented waste film falls into the gap between the first crushing roller and the second crushing roller, the second servo motor is started, and the first drive rod drives the first gear to rotate. Then, the meshing of the first gear and the second gear causes the second drive rod to rotate, so that the two crushing rollers begin to further crush the waste edge film. S5: After crushing, the material falls into the screening barrel. The bevel gear drives the gear disc to rotate the screening barrel centrifugally, so that qualified particles are thrown out through the screen holes to become recycled material. The stirring rod drives the scraper to scrape the inner wall to avoid screen blockage.

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