Scrap edge film recycling device for cement bag film spraying line and using method of waste edge film recycling device

Abstract

The invention discloses a slitter edge film recovery device for a cement bag lamination line and a use method of the slitter edge film recovery device, and belongs to the field of slitter edge film recovery. Comprising a rack and a winding roller, the output end of the winding roller is correspondingly connected with a winding motor, the two ends of the top of the winding roller are each provided with a cutting knife used for cutting a laminated film, the outer side of the bottom of the winding roller is provided with a circulation mechanism used for collecting a waste edge film, and a distance adjusting mechanism used for adjusting the positions of the cutting knives is arranged over the winding roller; through the arrangement of the spacing adjusting mechanism and the circulation mechanism, the positions of the cutting knife, the first absorption pipe and the second absorption pipe can be adjusted through the spacing adjusting mechanism and the traction assembly according to the actually needed packaging bag size, it is guaranteed that cut waste edge films can be efficiently and accurately collected, and the production efficiency is improved. And the problems that the position of the suction nozzle cannot be adjusted in time according to the film making size change in a traditional system, so that the waste edge film falls off and is polluted, the recovery efficiency is low, and the subsequent treatment cost is increased are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste edge film recovery, and more particularly to a waste edge film recovery device for a cement bag laminating line and a method for using the device. Background Art

[0002] In the cement packaging bag laminating production line, since the size of the packaging bags is fixed, in the subsequent slitting process, a cutter is needed to cut off the excess and uneven thickness edge films on both sides of the laminating film to ensure uniform specifications and consistent quality of the finished packaging bags; however, a large amount of film-containing composite edge materials will be generated during the slitting process. This type of waste edge film accounts for a high proportion of the total raw materials, and because it contains ingredients such as woven cloth fibers, laminating resins and fillers, it is difficult to degrade naturally. If discarded at will, it is very easy to cause land pollution. Therefore, in the slitting process, the edge films must be uniformly recycled to avoid waste of raw materials and environmental pollution.

[0003] The traditional method of recycling waste edge film usually adopts a process that combines pneumatic conveying and melt granulation. The cut waste edge film is often collected and transported to the recycling system through a suction nozzle and a centrifugal fan. However, due to the differences in the film sizes used in actual factory production, the existing equipment is unable to adaptively adjust according to the specific location of the waste edge film. When the cutter completes the cutting, part of the waste edge film cannot be sucked into the suction nozzle in time and falls to the ground, causing pollution. This not only increases the workload of the subsequent cleaning process, but also significantly reduces the efficiency and economy of the overall recycling work. 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 recovery device for a cement bag laminating line and a method of using the same, aiming to solve the above technical problems.

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

[0006] A waste film recovery device for a cement bag laminating line and a method for using the same, comprising a frame, a plurality of rollers mounted inside the frame, and a winding motor connected to the output ends of the rollers; cutting knives for cutting the laminating film are provided at both ends of the top of the rollers; a circulation mechanism for collecting the waste film is provided on the outer side of the bottom of the rollers; a support mechanism is provided on the top of the rollers, the support mechanism comprising a first support plate and a second support plate; a spacing adjustment mechanism for adjusting the position of the cutting knives is provided directly above the rollers; The spacing adjustment mechanism includes a limit rod arranged just above the winding roller, and two ends of the limit rod are respectively provided with a fixed plate and a supporting plate fixedly connected to the first support plate and the second support plate, an adjusting rod flush with the limit rod is rotatably connected to one side of the fixed plate, and one end of the adjusting rod passes through the fixed plate and is fixedly connected to the first servo motor, and both ends of the outer circular surface of the limit rod are slidably connected to an adjusting seat, and one end of the adjusting seat is provided with a first threaded sleeve engaged with the adjusting rod; The circulation mechanism includes a fixed cylinder arranged on the outside of the bottom of the roller, and the two ends inside the fixed cylinder are respectively slidably connected to the first absorption tube and the second absorption tube. The outer circular surfaces of the fixed cylinder, the first absorption tube and the second absorption tube are all provided with a traction component used in conjunction with the spacing adjustment mechanism.

[0007] As a further solution 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 commonly fixedly connected with a partition; the traction assembly includes a fixed seat fixedly connected to the middle of the top of the fixed cylinder, and the middle of the limiting rod is provided with a U-shaped support arm fixedly connected to the fixed seat, one side of the outer circular surface of the first absorption tube and the second absorption tube is fixedly connected to a support ring, the other end of the adjusting seat is fixedly connected to a sliding sleeve, and a connecting arm is commonly fixedly connected between the sliding sleeve and the support ring; one side of the top of the first absorption tube and the second absorption tube is fixedly connected to an adsorption cylinder, and one side of the top of the adsorption cylinder is fixedly connected to a bracket.

[0008] As a further solution 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 slide groove is fixedly connected around the interior of the fixed cylinder, and the outer circular surfaces of the first absorption tube and the second absorption tube are both provided with limit strips that cooperate with the slide groove, and both ends of the limit strip are provided with an annular stopper fixedly connected to the first absorption tube, and the edge of the annular stopper is provided with a notch that adapts to the slide groove.

[0009] As a further solution of the present invention: the support mechanism also includes a horizontal plate arranged on the top of the roller and fixedly connected to the frame, and the two ends of the bottom of the horizontal plate are respectively fixedly connected to the first hydraulic rod and the second hydraulic rod, and one end of the first hydraulic rod and the second hydraulic rod are respectively fixedly connected to the first support plate and the second support plate.

[0010] As a further solution of the present invention: a receiving box for recycling waste edge film is provided on one side of the outer surface of the frame, and a mixing mechanism is provided on one side of the top of the receiving box, and the mixing mechanism includes a circulation box fixedly connected to one side of the top of the receiving box, and the inner top of the circulation box is slidably connected to a sealing plate, and the inner middle of the sealing plate is fixedly connected to a discharge pipe; one end of the second absorption pipe is provided with a conveying mechanism for feeding material into the circulation box, and the conveying mechanism includes an air pump fixedly connected to one side of the outer surface of the frame, one end of the air pump is fixedly connected to a connecting pipe, and the other end is fixedly connected to a conveying pipe, and one end of the conveying pipe is threaded and sealed with the discharge pipe; a shrinkage tube is commonly provided between the connecting pipe and the second absorption pipe, and both ends of the shrinkage tube are fixedly connected to a receiving ring, and the connecting pipe is fixedly connected to the second absorption pipe through the receiving ring.

[0011] As a further solution of the present invention: the mixing mechanism also includes a guide plate fixedly connected to both sides of the inner wall of the circulation box at an angle, and the interior of the circulation box is fixedly connected with a first blocking plate and a second blocking plate; a shearing mechanism for pre-cutting the waste edge film is commonly provided between the first blocking plate and the second blocking plate, and the shearing mechanism includes a bracket fixedly connected to the interior of the circulation box, the interior of the bracket is hinged with a first shearing plate and a second shearing plate, and the structure and function of the first shearing plate and the second shearing plate are the same; one end of the tail of the first shearing plate and the second shearing plate is respectively provided with a first electric telescopic rod and a second electric telescopic rod fixedly connected to the circulation box; the inner sides of the first shearing plate and the second shearing plate are fixedly connected with three-tooth plates arranged in a linear manner, and both sides of the inner wall of the circulation box are fixedly connected with a triangular plate, and the inner side of the triangular plate is fixedly connected with an arc rod arranged in a linear manner, and the arc rod passes through the interior of the three-tooth plate.

[0012] As a further solution of the present invention: the inner bottom of the circulation box is also provided with a crushing mechanism for further crushing the sheared edge film, and the crushing mechanism includes a first driving rod and a second driving rod rotatably connected to the inside of the circulation box, and one end of the first driving rod and the second driving rod both pass through the second blocking plate and are fixedly connected to the first crushing roller and the second crushing roller respectively, the other end of the first driving rod passes through the circulation box and is fixedly connected to the second servo motor, the first driving rod is fixedly connected to the side close to the second servo motor with a first gear, the outer cylindrical surface of the second driving rod is fixedly connected to the second gear, and the second gear is meshed with the first gear.

[0013] As a further solution of the present invention: the outer surfaces of the first crushing roller and the second crushing roller are both provided with a cleaning mechanism, the cleaning mechanism includes a first stripping knife and a second stripping knife respectively arranged on the outer surfaces of the first crushing roller and the second crushing roller, and both sides of the inner wall of the circulation box are provided with a movable component for adjusting the position of the first stripping knife and the second stripping knife, the movable component includes a fixed frame fixedly connected to one side of the outer surface of the second blocking plate, one end of the interior of the fixed frame is rotatably connected to a threaded rod, and the middle part of the interior of the fixed frame is fixedly connected to a fixed rod, the threaded rod and the fixed rod both pass through the second blocking plate and are slidably connected to a movable seat together, one end of the movable seat is provided with a second threaded sleeve meshing with the threaded rod, and the side of the threaded rod close to the fixed frame is provided with a belt transmission component used in conjunction with the crushing mechanism.

[0014] As a further solution of the present invention: the front side of the receiving box is slidably connected to a baffle, and a screening mechanism for sorting waste edge film is provided on one side of the receiving box. The screening mechanism includes a limit frame fixedly connected to one side of the inner wall of the receiving box, and the internal rotation of the limit frame is connected to the screening barrel, and the middle of the outer circular surface of the screening barrel is fixedly connected to an annular plate, and the bottom of the screening barrel is threadedly connected to a bearing cover, and the top of the screening barrel is fixedly connected to a gear plate, and a third gear meshed with the second gear is provided on one side of the bottom of the circulation box. The inside of the third gear is fixedly connected to a rotating rod, and support seats fixedly connected to the circulation box are provided at both ends of the rotating rod, and a bevel gear meshed with the gear plate is provided on one side of the outer circular surface of the rotating rod; a stirring rod is rotatably connected to the middle of the inner middle of the screening barrel, and a scraper is fixedly connected to the edge of the stirring rod, and a threaded seat fixedly connected to the receiving box is provided directly below the bearing cover, and one end of the stirring rod passes through the bearing cover and is threadedly connected to the threaded seat.

[0015] A method for using a waste film recovery device for a cement bag laminating line is as follows: S1: By starting the first servo motor, the adjustment rod is driven to rotate, and the first threaded sleeve is used to drive the adjustment seat to move axially along the limit rod, the cutting blade is synchronously adjusted to the target width, and the traction component is used to link the first and second absorption tubes to slide in the fixed cylinder, so that the absorption cylinder is accurately aligned with the cutting point; S2: The support mechanism is hydraulically pressed down to make the cutting blade contact the film roll. The winding motor drives the roll to rotate to complete the cutting. At the same time, the vacuum pump is started to seal the waste film through the shrink tube and transport it to the flow box. S3: After the waste film slides into the shearing zone through the guide plate, the shearing mechanism is used to move the first shear plate and the second shear plate closer to each other, and then the three tooth plates meshing with each other shear the waste edge film, cutting it into segmented waste edge film for subsequent processing; S4: The segmented waste film falls into the gap between the first crushing roller and the second crushing roller, and the second servo motor is started, which drives the first gear to rotate through the first driving rod. The engagement of the first gear and the second gear then rotates the second driving rod, so that the two crushing rollers begin to further crush the waste film. S5: After crushing, the material falls into the screening barrel, and the bevel gear drives the gear plate to drive the screening barrel to rotate centrifugally, so that the qualified particles are thrown out through the sieve holes and become recycled materials. The stirring rod drives the scraper to scrape the inner wall to prevent the sieve holes from being blocked.

[0016] Compared with the prior art, the above technical solution provided by the present invention has at least the following beneficial effects: (1) This solution sets a spacing adjustment mechanism and a circulation mechanism to start the first servo motor according to the actual required packaging bag size, so that the adjustment rod rotates, thereby driving the first threaded sleeve and the adjustment seat to move along the axial direction of the limit rod, synchronously adjusting the position of the cutting knife, and making the first absorption tube and the second absorption tube connected to the adjustment seat adaptively adjust to the appropriate position in the fixed cylinder, so as to achieve the effect of the waste edge film directly entering the absorption tube for centralized recycling and processing; and this process not only ensures that the waste edge film after cutting can be collected efficiently and accurately, but also solves the problem of waste edge film falling and pollution, low recycling efficiency and increased subsequent processing costs caused by the inability to adjust the suction nozzle position in time according to the change of film size in the traditional system.

[0017] (2) By setting the first hydraulic rod and the second hydraulic rod, the first hydraulic rod and the second hydraulic rod are started at the same time according to the actual thickness of the packaging bag produced, so that the adjusted cutting knife can accurately contact the coating film on the roller; and by the design of opening the thread rings in opposite directions at both ends of the adjusting rod, when the adjusting rod rotates clockwise, the first threaded sleeves at both ends thereof are moved closer to the middle in the axial direction of the limit rod, ensuring that the adjusting seat will not leave the threaded area of ​​the adjusting rod; at the same time, the sliding sleeve and the connecting arm connected to the adjusting seat move synchronously, prompting the support ring to drive the first absorption tube and the second absorption tube to move closer to the middle, ensuring that the position of the absorption cylinder can be aligned with the bottom of the waste edge film falling trajectory, and using the bracket to guide the waste edge film into the absorption tube; and this process realizes the efficient and accurate collection of the cut waste edge film, avoids the problem that the suction nozzle cannot be adjusted synchronously due to the change of the film size, and prevents the environmental pollution caused by the falling of the waste edge film and the increase of manual cleaning costs.

[0018] (3) By setting up a conveying mechanism, a mixing mechanism, and a shearing mechanism, after the waste edge film is sent into the circulation box by the conveying mechanism, the waste edge film slides into the shearing area through the inclined guide plate, and passes through the material buffer zone formed by the first blocking plate and the second blocking plate. When the film material accumulates to the trigger position, the first electric telescopic rod and the second electric telescopic rod are intermittently started, so that the first shear plate and the second shear plate are close to each other, and the waste edge film is sheared by the three-tooth plate, and cut into segmented waste edge film for subsequent processing, thereby avoiding the risk of long waste edge film winding around the crusher and causing equipment damage; and when the electric telescopic rod is retracted, the first shear plate and the second shear plate return to the initial open position, and the arc rod enters the three-tooth plate to push out the remaining waste edge film, ensuring the continuity of the shearing work without interference; this not only improves the efficiency of waste edge film recovery and processing, but also effectively protects the subsequent crushing equipment from damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a connection diagram of the support mechanism of the present invention; Figure 3 This is a schematic diagram of the connection between the spacing adjustment mechanism and the circulation mechanism of the present invention; Figure 4 is a cross-sectional view of the circulation mechanism of the present invention; Figure 5 is an internal cross-sectional view of the mixing mechanism of the present invention; Figure 6 It is a top view of the connection of the shearing mechanism of the present invention; Figure 7 This is a schematic diagram of the connection of the crushing mechanism of the present invention; Figure 8 Schematic diagram of the cross-section connection of the screening mechanism of the present invention; Figure 9 It is a connection diagram of the cleaning mechanism of the present invention.

[0021] Reference numerals: 1. Frame; 2. Winding motor; 21. Winding roller; 3. Support mechanism; 31. Horizontal plate; 32. First hydraulic rod; 33. First support plate; 34. Second hydraulic rod; 35. Second support plate; 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; 5. Cutting knife; 6. Circulation mechanism; 61. Fixed cylinder; 62. Fixed seat; 63. U-shaped support arm; 64. Slide; 65. First absorption tube; 66. Second absorption tube; 67. Limiting strip; 68. Circular stopper; 69. Support ring; 610. Connecting arm; 611. Sliding sleeve; 612. Adsorption cylinder; 613. Bracket; 7. Conveying mechanism; 71. Air pump; 72. Connecting pipe; 73. Shrink tube; 74. Adapter ring; 75. Conveying pipe; 8. Mixing mechanism; 81. Flow box; 82. Sealing plate; 83. Feeding tube; 84. First blocking plate; 85. Second blocking plate; 86. Guide plate; 9. Shearing mechanism; 91. Bracket; 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; 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; 11. Receiver box; 111. Baffle; 112. Threaded seat; 12. Screening mechanism; 121. Screening barrel; 122. Carrying cover; 123. Ring plate; 124. Limiting frame; 125. Gear plate; 126. Rotating rod; 127. Support seat; 128. Third gear; 129. Bevel gear; 1210. Stirring rod; 1211. Scraper; 13. Cleaning mechanism; 131. First stripping knife; 132. Belt drive assembly; 133. Fixed frame; 134. Fixed rod; 135. Threaded rod; 136. Movable seat; 137. Second threaded sleeve; 138. Second stripping knife.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0023] The following, combined with the accompanying drawings and specific embodiments, describes in detail a waste film recovery device for a cement bag laminating line and its method of use. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to further illustrate the embodiments and are not intended to limit the present invention.

[0024] like Figures 1 to 9 As shown, an embodiment of the present invention provides a waste film recovery device for a cement bag laminating line and a method for using the same, comprising a frame 1, a plurality of rollers 21 installed inside the frame 1, and a winding motor 2 connected to the output end of the roller 21; cutting knives 5 for cutting the laminating film are provided at both ends of the top of the roller 21; a circulation mechanism 6 for collecting the waste film is provided on the outer side of the bottom of the roller 21; a support mechanism 3 is provided on the top of the roller 21, and the support mechanism 3 includes a first support plate 33 and a second support plate 35; a spacing adjustment mechanism 4 for adjusting the position of the cutting knife 5 is provided directly above the roller 21; Among them, the spacing adjustment mechanism 4 includes a limiting rod 42 arranged just above the winding roller 21, and the two ends of the limiting rod 42 are respectively provided with a fixing plate 41 and a supporting 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, and one end of the adjusting rod 43 passes through the fixing plate 41 and is fixedly connected to the first servo motor 44. Both ends of the outer surface of the limiting rod 42 are slidably connected to an adjusting seat 46, and one end of the adjusting seat 46 is provided with a first threaded sleeve 47 engaged with the adjusting rod 43; The circulation mechanism 6 includes a fixed cylinder 61 arranged on the outside of the bottom of the roller 21. The two ends inside the fixed cylinder 61 are respectively slidably connected to the first absorption tube 65 and the second absorption tube 66. The outer circular surfaces of the fixed cylinder 61, the first absorption tube 65, and the second absorption tube 66 are all provided with a traction component used in conjunction with the spacing adjustment mechanism 4.

[0025] In order to solve the problem that the existing waste edge film recovery system lacks adaptive adjustment function and cannot adjust the suction nozzle position in time according to the change of film size, which leads to the waste edge film easily falling and contaminating after cutting, low recovery efficiency and increased subsequent processing costs, the above-mentioned technical solution is now adopted to solve the problem. The above-mentioned technical solution is mainly composed of a spacing adjustment mechanism 4 and a circulation mechanism 6. When cutting the packaging bag after lamination, first, according to the actual required size of the packaging bag, the first servo motor 44 is started to rotate the adjustment rod 43, so that the first threaded sleeve 47 drives the adjustment seat 46 to move toward the middle along the axial direction of the limit rod 42, and in the process of the two adjustment seats 46 moving toward the middle, the fixedly connected cutting knife 5 is driven to move synchronously and reach the specified position; at the same time, the traction assembly fixedly connected to the adjustment seat 46 moves synchronously, thereby driving the first absorption tube 65 and the second absorption tube 66 in the fixed cylinder 61 The interior of the film moves closer to the middle, so that the first absorption tube 65 and the second absorption tube 66 are adaptively adjusted to the appropriate position along with the position of the cutting knife 5, which not only ensures that the waste edge film after subsequent cutting directly enters the first absorption tube 65 and the second absorption tube 66 for centralized recycling and processing, but also avoids the problem that the waste edge film after cutting is easy to fall and pollute, the recycling efficiency is low and the subsequent processing cost increases due to the inability to adjust the suction nozzle position in time according to the change of film size; after all the adjustment work is completed, it is only necessary to use the support mechanism 3 to move the entire spacing adjustment mechanism 4 and the position of the cutting knife 5 downward as a whole, so that the cutting knife 5 touches the coating film on the winding roller 21, and start the winding motor 2 to drive the winding roller 21 to rotate, and use the cutting knife 5 to cut the packaging bag on the winding roller 21. As the cutting knife 5 continues to cut, the fallen waste edge film directly falls into the first absorption tube 65 and the second absorption tube 66 and is collected uniformly.

[0026] like Figure 2 、 Figure 3 、 Figure 4 As shown, both ends of the outer circumference 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 circumference 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 commonly fixedly connected with a partition 45; the traction assembly includes a fixed seat 62 fixedly connected to the middle of the top of the fixed cylinder 61, and a U-shaped support arm 63 fixedly connected to the fixed seat 62 is provided in the middle of the limiting rod 42, one side of the outer circumference of the first absorption tube 65 and the second absorption tube 66 is fixedly connected to a support ring 69, the other end of the adjusting seat 46 is fixedly connected to a sliding sleeve 611, and a connecting arm 610 is commonly fixedly connected between the sliding sleeve 611 and the support ring 69; one side of the top of the first absorption tube 65 and the second absorption tube 66 is fixedly connected to an adsorption cylinder 612, and one side of the top of the adsorption cylinder 612 is fixedly connected to a bracket 613.

[0027] like Figure 3 、 Figure 4As shown, the structures and functions of the first absorption tube 65 and the second absorption tube 66 are the same, but the first absorption tube 65 is open at one end, while the second absorption tube 66 is open at both ends; the interior of the fixed cylinder 61 is fixedly connected with a slide groove 64, and the outer circumferential surfaces of the first absorption tube 65 and the second absorption tube 66 are provided with a limit strip 67 that cooperates with the slide groove 64, and both ends of the limit strip 67 are provided with an annular stopper 68 fixedly connected to the first absorption tube 65, and the edge of the annular stopper 68 is provided with a notch that adapts to the slide groove 64.

[0028] like Figure 1 、 Figure 2 、 Figure 3 As shown, the support mechanism 3 also includes a horizontal plate 31 arranged on the top of the winding 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 the first hydraulic rod 32 and the second hydraulic rod 34, and one end of the first hydraulic rod 32 and the second hydraulic rod 34 are respectively fixedly connected to the first support plate 33 and the second support plate 35.

[0029] When the edge film is cut, according to the actual thickness of the packaging bag produced, the first hydraulic rod 32 and the second hydraulic rod 34 are simultaneously started to extend, so that the first support plate 33 and the second support plate 35 that are fixedly connected are synchronously moved downward, and in the process of the first support plate 33 and the second support plate 35 moving downward, the fixed plate 41 and the supporting plate that are fixedly connected thereto are synchronously moved downward, so that the adjusted cutting knife 5 contacts the laminating film on the winding roller 21; and when the position of the adjusting seat 46 is adjusted by using the adjusting rod 43, since both ends of the outer circumference of the adjusting rod 43 are provided with The threaded circles are in opposite directions, so the first threaded sleeves 47 are respectively located at both ends of the outer circumference of the adjusting rod 43. When the adjusting rod 43 rotates clockwise, under the limiting action of the adjusting rod 43, the limiting rod 42 and the first threaded sleeve 47, the adjusting rod 43 moves closer to the middle along the axial direction of the limiting rod 42, and in the process of moving closer, the partition 45 is provided to prevent the adjusting seat 46 from being separated from the threaded area of ​​the adjusting rod 43; and as the adjusting seat 46 moves, the sliding sleeve 611 and the connecting arm 610 fixed thereto move synchronously, so that the connecting arms 610 at both ends of the adjusting rod 43 The support ring 69 is driven to move synchronously, thereby making the first absorption tube 65 and the second absorption tube 66 fixedly connected to the support ring 69 move closer to the middle. At the same time, since the U-shaped support arm 63 is fixedly connected to the limiting rod 42, the position of the entire fixed cylinder 61 is guaranteed to remain unchanged; and since the outer diameters of the circular stoppers 68 corresponding to the two first absorption tubes 65 and the second absorption tubes 66 are larger than the outlet diameter of the fixed cylinder 61, and the circular stoppers 68 and the limiting strips 67 are slidably stuck in the chute 64 inside the fixed cylinder 61, so as to ensure that the first absorption tube 65 and the second absorption tube The collecting tube 66 will not be separated from the fixed tube 61 when it extends outward or retracts inward; and as the position of the first absorption tube 65 and the second absorption tube 66 changes, the position of the fixedly connected absorption tube 612 changes accordingly, and is aligned with the bottom of the falling trajectory of the waste edge film, and the bracket 613 is used to further guide the falling waste edge film into the first absorption tube 65 and the second absorption tube 66, avoiding the problem that the existing waste edge film recovery system lacks adaptive adjustment function, resulting in the suction nozzle being 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.

[0030] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5As shown, a receiving box 11 for recycling waste edge film is provided on one side of the outer surface of the frame 1, and a mixing mechanism 8 is provided on the top side of the receiving box 11. The mixing mechanism 8 includes a circulation box 81 fixedly connected to one side of the top of the receiving box 11, and a sealing plate 82 is slidably connected to the inner top of the circulation box 81, and 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 circulation box 81 is provided at one end of the second absorption tube 66, and the conveying mechanism 7 includes an air pump 71 fixedly connected to one side of the outer surface of the frame 1, and one end of the air pump 71 is fixedly connected to a connecting pipe 72, and the other end is fixedly connected to a conveying pipe 75, and one end of the conveying pipe 75 is threadedly and sealedly connected to the discharge pipe 83; a shrinkage tube 73 is commonly provided between the connecting pipe 72 and the second absorption tube 66, and both ends of the shrinkage tube 73 are fixedly connected to a receiving ring 74, and the connecting tube 72 is fixedly connected to the second absorption tube 66 through the receiving ring 74.

[0031] like Figure 1 、 Figure 5 、 Figure 6 As shown, the mixing mechanism 8 also includes a guide plate 86 that is obliquely fixedly connected to both sides of the inner wall of the circulation box 81, and a first blocking plate 84 and a second blocking plate 85 are fixedly connected to the inside of the circulation box 81; a shearing mechanism 9 for pre-cutting the waste edge film is commonly provided between the first blocking plate 84 and the second blocking plate 85, and the shearing mechanism 9 includes a bracket 91 fixedly connected to the inside of the circulation box 81, and a first shearing plate 92 and a second shearing plate 93 are hinged inside the bracket 91, and the structures and functions of the first shearing plate 92 and the second shearing plate 93 are the same; one end of the tail of the first shearing plate 92 and the second shearing plate 93 is respectively provided with a first electric telescopic rod 95 and a second electric telescopic rod 96 fixedly connected to the circulation box 81; the inner sides of the first shearing plate 92 and the second shearing plate 93 are fixedly connected to three-tooth plates 94 arranged in a linear manner, and both sides of the inner wall of the circulation box 81 are fixedly connected to a triangular plate 97, and the inner side of the triangular plate 97 is fixedly connected to an arc rod 98 arranged in a linear manner, and the arc rod 98 passes through the interior of the three-tooth plate 94.

[0032] When the spacing adjustment mechanism 4 drives the second absorption tube 66 to retract toward the center, the elastic shrink tube 73 is synchronously stretched under the fixation of the receiving ring 74 to form an adaptive sealing channel. After the vacuum pump 71 is started, the cut waste edge film is sucked from the adsorption cylinder 612 by negative pressure suction, so that the waste film flows through the first absorption tube 65 and the second absorption tube 66 in turn into the shrink tube 73, and then passes through the conveying pipe 75, and finally enters the circulation box 81 through the threaded sealed discharge pipe 83. This process solves the problem of pipe falling off caused by position adjustment of traditional equipment and improves the sealing reliability of the conveying pipe. The waste edge film entering the circulation box 81 slides into the shearing area 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 started to extend or shorten them. When the first electric telescopic rod 95 and the second electric telescopic rod 96 are extended, the first The first shear plate 92 and the second shear plate 93 are close to each other, and the three-tooth plate 94 is used to shear the waste edge film, so that the long waste edge film is cut into segmented waste edge film, so as to improve the subsequent crushing effect of the segmented waste edge film, and to avoid the damage of the related crushing equipment due to the edge film being too long being wound around the crusher; and when the first electric telescopic rod 95 and the second electric telescopic rod 96 are retracted, the first shear plate 92 and the second shear plate 93 return to their initial positions, that is, they are opened outwards. At this time, the arc rod 98 enters the three-tooth plate 94 from the internal notches 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 to ensure the continuation of the subsequent shearing work. In the process of processing the waste edge film of the first shear plate 92 and the second shear plate 93, the actual shape of the arc rod 98 is a circular ring. When the first shear plate 92 and the second shear plate 93 are opened, they can move normally on the arc rod 98 without interfering with its movement.

[0033] like Figure 5 、 Figure 6 、 Figure 7 As shown, the inner bottom of the circulation box 81 is also provided with a crushing mechanism 10 for further crushing the sheared edge film. The crushing mechanism 10 includes a first driving rod 101 and a second driving rod 105 which are rotatably connected to the inside of the circulation box 81. One end of the first driving rod 101 and the second driving rod 105 pass through the second blocking plate 85 and are fixedly connected to the first crushing roller 103 and the second crushing roller 107 respectively. The other end of the first driving rod 101 passes through the circulation box 81 and is fixedly connected to the second servo motor 104. The first gear 102 is fixedly connected to the side of the first driving rod 101 close to the second servo motor 104. The outer cylindrical surface of the second driving rod 105 is fixedly connected to the second gear 106. The second gear 106 and the first gear 102 are meshed with each other.

[0034] like Figure 7 、 Figure 9As shown, the outer surfaces of the first crushing roller 103 and the second crushing roller 107 are both provided with a cleaning mechanism 13, and the cleaning mechanism 13 includes a first stripping knife 131 and a second stripping knife 138 respectively arranged on the outer surfaces of the first crushing roller 103 and the second crushing roller 107, and both sides of the inner wall of the circulation box 81 are provided with a movable component for adjusting the position of the first stripping knife 131 and the second stripping knife 138, and the movable component includes a fixed frame 133 fixedly connected to one side of the outer surface of the second blocking plate 85, and the inner one end of the fixed frame 133 is rotatably connected to the threaded rod 135, and the middle part of the inner part of the fixed frame 133 is fixedly connected to the fixed rod 134, the threaded rod 135 and the fixed rod 134 both pass through the second blocking plate 85 and are slidably connected to the movable seat 136, and one end of the movable seat 136 is provided with a second threaded sleeve 137 meshing with the threaded rod 135, and the side of the threaded rod 135 close to the fixed frame 133 is provided with a belt transmission component 132 used in conjunction with the crushing mechanism 10.

[0035] The crushing mechanism 10 is also equipped with an intelligent control module to optimize the scrap film crushing process. First, the axis of the first crushing roller 103 is used as a reference, and its outer surface is considered a reference circle. The theoretical maximum contact area is calculated based on the diameter parameters of this circle. In actual operation, after the segmented scrap film is fed into the circulation box 81 and sheared, it falls directly onto the first crushing roller 103 and the second crushing roller 107. At this point, the second servo motor 104 is activated, and the first drive rod 101 drives the first gear 102 to rotate. The meshing of the first gear 102 and the second gear 106 then rotates the second drive rod 105, causing the two crushing rollers to begin further crushing the scrap film. Simultaneously, the load current of the second servo motor 104 is collected in real time and converted into torque data. The actual coverage of the scrap film is determined based on the ratio of this torque data to the theoretical maximum contact area. To ensure optimal operation, when the actual coverage exceeds a preset safety threshold of 75%, the system gradually reduces the rotational speed by 1 / 100 of the reference circle's diameter. When the actual coverage falls below the high-efficiency operating threshold of 40%, the rotational speed is increased in steps of 1 / 200 of the reference circle's circumference. Furthermore, during the rotation of the first and second drive rods 101 and 105, the belt drive assembly 132 drives the threaded rod 135 within the fixed frame 133. The movable seat 136, restrained by the second threaded sleeve 137 and the fixed rod 134, moves axially along the fixed rod 134, allowing the first and second stripping blades 131 and 138 on the outer surfaces of the first and second crushing rollers 103 and 107 to effectively remove any remaining scrap film, preventing it from entanglement and impacting the crushing process. Finally, the system records the crushing throughput per unit time at different coverage rates and automatically locks the coverage rate range that peaks the throughput as the new high-efficiency operating threshold, ensuring the efficiency and stability of the entire crushing process.

[0036] like Figure 5 、 Figure 7 、 Figure 8 As shown, the front side of the receiving box 11 is slidably connected to a baffle 111, and a screening mechanism 12 for sorting waste edge membranes is provided on one side of the receiving box 11. The screening mechanism 12 includes a limit frame 124 fixedly connected to one side of the inner wall of the receiving box 11, and the internal rotation of the limit frame 124 is connected to a screening barrel 121, and an annular plate 123 is fixedly connected to the middle of the outer surface of the screening barrel 121. The bottom of the screening barrel 121 is threadedly connected to a bearing cover 122, and the top of the screening barrel 121 is fixedly connected to a gear plate 125. A third gear meshing with the second gear 106 is provided on one side of the bottom of the circulation box 81. Gear 128, the third gear 128 is fixedly connected to the inside of the rotating rod 126, and both ends of the rotating rod 126 are provided with support seats 127 fixedly connected to the circulation box 81, and one side of the outer circular surface of the rotating rod 126 is provided with a bevel gear 129 meshing with the gear plate 125; the middle of the inside of the screening barrel 121 is rotatably connected to the stirring rod 1210, and the edge of the stirring rod 1210 is fixedly connected to the scraper 1211, and a threaded seat 112 fixedly connected to the receiving box 11 is provided directly below the supporting cover 122, and one end of the stirring rod 1210 passes through the supporting cover 122 and is threadedly connected to the threaded seat 112.

[0037] After the crushed edge film output by the crushing mechanism 10 falls into the screening barrel 121, efficient centrifugal screening is achieved through a power linkage mechanism. The mechanism is driven by the second gear 106 to drive the third gear 128, which drives the rotating rod 126 to rotate in the support seat 127, and engages with the gear plate 125 through the bevel gear 129, so that the screening barrel 121 rotates at high speed around its own axis. To ensure stable operation, the screening barrel 121 adopts a double-point support structure consisting of an annular plate 123 and a limit frame 124 to control the radial runout within ±0.1mm. Under the action of the centrifugal force generated by high-speed rotation, qualified particles with a particle size of less than Φ3mm are thrown out through the sieve holes and fall into the receiving box 11 below, becoming recycled materials that can be directly reused; while the coarse materials that are not fully crushed with a particle size greater than Φ3mm are retained in the screening barrel 121, realizing automatic sorting. To prevent material accumulation and sieve hole clogging, the stirring rod 1210 drives the scraper 1211 to continuously scrape the inner wall of the screening barrel 121 to control the accumulation height to less than 5mm; at the same time, a 0.2mm gap is provided between the edge of the scraper 1211 and the sieve hole, which can forcibly peel off the adsorbed micro-powder, reduce the sieve hole clogging rate, and significantly improve the screening efficiency. Compared with the problem of qualified materials mixed with coarse materials caused by accumulation in traditional vibrating screens, this operation process improves the recovery rate of qualified recycled materials through dynamic stirring; when recovering coarse materials, the baffle 111 is slid open to expose the bottom of the screening barrel 121, the supporting cover 122 is rotated to release the threaded connection and detach from the screening barrel 121, and then the stirring rod 1210 is rotated in the opposite direction to detach it from the threaded seat 112, and the supporting cover 122 can be removed as a whole, and the coarse material recovery is easily completed, thereby improving the maintenance efficiency and ease of use of the overall equipment.

[0038] A method for using a waste film recovery device for a cement bag laminating line is as follows: S1: By starting the first servo motor 44, the adjustment rod 43 is driven to rotate, and the first threaded sleeve 47 is used to drive the adjustment seat 46 to move axially along the limit rod 42, and the cutting knife 5 is synchronously adjusted to the target width. The traction assembly is used to link the first absorption tube 65 and the second absorption tube 66 to slide in the fixed tube 61, so that the adsorption tube 612 is accurately aligned with the cutting point.

[0039] S2: The support mechanism 3 is hydraulically pressed down to make the cutting blade 5 contact the film roll 21. The winding motor 2 drives the film roll 21 to rotate to complete the cutting. At the same time, the vacuum pump 71 is started to seal the waste film through the shrink tube 73 and transport it to the flow box 81. S3: After the waste film slides into the shearing zone through the guide plate 86, the shearing mechanism 9 is used to move the first shearing plate 92 and the second shearing plate 93 closer to each other, and then the three-tooth plates 94 mesh with each other to shear the waste edge film, cutting it into segmented waste edge film for subsequent processing; S4: The segmented waste film falls into the gap between the first crushing roller 103 and the second crushing roller 107, and the second servo motor 104 is started. The first driving rod 101 drives the first gear 102 to rotate, and the meshing of the first gear 102 and the second gear 106 causes the second driving rod 105 to rotate, so that the two crushing rollers begin to further crush the waste film. S5: After crushing, the material falls into the screening barrel 121, and the bevel gear 129 drives the gear plate 125 to drive the screening barrel to rotate centrifugally, so that the qualified particles are thrown out through the sieve holes to become recycled materials, and the stirring rod 1210 drives the scraper 1211 to scrape the inner wall to prevent the sieve holes from being blocked.

[0040] When the present invention is in use, first, according to the actual required size of the packaging bag, the first servo motor 44 is started to rotate the adjusting rod 43, and the adjusting seat 46 is driven to move axially along the limiting rod 42 through the first threaded sleeve 47, and the position of the cutting knife 5 is adjusted synchronously; at the same time, the traction assembly connected to the adjusting seat 46 drives the first absorption tube 65 and the second absorption tube 66 to move synchronously in the fixed cylinder 61, ensuring that they can be adaptively adjusted to the appropriate position with the position of the cutting knife 5, so that the cut waste edge film directly enters the absorption tube, avoiding the waste edge film falling and pollution and low efficiency problems caused by the inability to adjust the suction nozzle position in time in the traditional system; then, the support mechanism 3 is used to move the entire spacing adjustment mechanism 4 and the cutting knife 5 downward as a whole, so that the cutting knife touches the coating film on the winding roller 21 and the winding motor 2 is started to drive the winding roller 21 to rotate to complete the cutting work; in this process, when the spacing adjustment mechanism 4 drives the second absorption tube 66 to retract toward the center, the elastic shrinkage tube 73 is synchronously stretched to form a sealed channel, and the vacuum pump 71 is started to use negative pressure suction The force sucks the waste edge film from the adsorption cylinder 612 and finally enters the circulation box 81 through the conveying pipe 75. The waste edge film entering the circulation box 81 slides into the shearing area through the inclined guide plate 86. The first shear plate 92 and the second shear plate 93 controlled by the first electric telescopic rod 95 and the second electric telescopic rod 96 approach each other, and the three-tooth plate 94 is used to shear the waste edge film, so that it becomes a segmented waste edge film, which is convenient for subsequent crushing processing; then, the segmented waste edge film falls into the crushing mechanism 10, and 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, converting it into torque data to determine the actual coverage rate of the waste edge film, and automatically adjusts the crushing roller speed according to the coverage rate to ensure the best operating state, and uses the belt drive assembly 132 to drive the threaded rod 135 to rotate, prompting the movable seat 136 to move axially along the fixed rod 134, and uses the first stripping knife 131 and the second stripping knife 138 to remove the waste edge film remaining on the surface of the crushing roller to maintain an efficient crushing effect; Finally, the crushed waste film falls into the screening barrel 121, and efficient centrifugal screening is achieved through the power linkage mechanism. Qualified particles with a particle size of less than Φ3mm are thrown out through the sieve holes and become recycled materials, while coarse materials are retained 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 clogging of the sieve holes.

[0041] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0042] 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 film recovery device for a cement bag laminating line, comprising a frame, a plurality of rollers installed inside the frame, and a winding motor connected to the output end of the roller; characterized in that: Cutting knives for cutting the laminated film are provided at both ends of the top of the roller. A circulation mechanism for collecting the waste film is provided on the outer side of the bottom of the roller. A supporting mechanism is provided on the top of the roller, which includes a first supporting plate and a second supporting plate. A spacing adjustment mechanism for adjusting the position of the cutting knives is provided directly above the roller. Among them, the spacing adjustment mechanism includes a limit rod arranged just above the winding roller, and two ends of the limit rod are respectively provided with a fixed plate and a supporting plate fixedly connected to the first support plate and the second support plate, an adjusting rod flush with the limit rod is rotatably connected to one side of the fixed plate, and one end of the adjusting rod passes through the fixed plate and is fixedly connected to the first servo motor, and both ends of the outer circular surface of the limit rod are slidably connected to the adjusting seat, and one end of the adjusting seat is provided with a first threaded sleeve engaged with the adjusting rod; The circulation mechanism includes a fixed cylinder arranged on the outside of the bottom of the roller, and the two ends inside the fixed cylinder are respectively slidably connected to the first absorption tube and the second absorption tube. The outer circular surfaces of the fixed cylinder, the first absorption tube and the second absorption tube are all provided with traction components used in conjunction with the spacing adjustment mechanism.

2. The waste film recovery device for cement bag laminating line according to claim 1 is characterized in that: 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 limit rod are commonly fixedly connected with a partition; the traction assembly includes a fixed seat fixedly connected to the middle of the top of the fixed cylinder, and a U-shaped support arm fixedly connected to the fixed seat is provided in the middle of the limit rod. One side of the outer circular surface of the first absorption tube and the second absorption tube is fixedly connected to a support ring, and the other end of the adjusting seat is fixedly connected to a sliding sleeve, and a connecting arm is commonly fixedly connected between the sliding sleeve and the support ring; one side of the top of the first absorption tube and the second absorption tube is fixedly connected to an adsorption cylinder, and one side of the top of the adsorption cylinder is fixedly connected to a bracket.

3. The waste film recovery device for cement bag laminating line according to claim 2 is characterized in that: 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 slide groove is fixedly connected around the interior of the fixed tube, and the outer circular surfaces of the first absorption tube and the second absorption tube are both provided with limit strips that match the slide groove, and both ends of the limit strip are provided with an annular stopper fixedly connected to the first absorption tube, and the edge of the annular stopper is provided with a notch that matches the slide groove.

4. The waste film recovery device for cement bag laminating line according to claim 3 is characterized in that: The support mechanism also includes a horizontal plate arranged on the top of the roller and fixedly connected to the frame. The two ends of the bottom of the horizontal plate are respectively fixedly connected to the first hydraulic rod and the second hydraulic rod. One end of the first hydraulic rod and the second hydraulic rod are respectively fixedly connected to the first support plate and the second support plate.

5. The waste film recovery device for cement bag laminating line according to claim 4 is characterized in that: A receiving box for recycling waste edge film is provided on one side of the outer surface of the frame, and a mixing mechanism is provided on one side of the top of the receiving box. The mixing mechanism includes a circulation box fixedly connected to one side of the top of the receiving box, and the inner top of the circulation box is slidably connected to a sealing plate, and the inner middle of the sealing plate is fixedly connected to a discharge pipe; one end of the second absorption pipe is provided with a conveying mechanism for feeding material into the circulation box, and the conveying mechanism includes an air pump fixedly connected to one side of the outer surface of the frame, one end of the air pump is fixedly connected to a connecting pipe, and the other end is fixedly connected to a conveying pipe, and one end of the conveying pipe is threaded and sealed with the discharge pipe; a shrinkage tube is commonly provided between the connecting pipe and the second absorption pipe, and both ends of the shrinkage tube are fixedly connected to a receiving ring, and the connecting pipe is fixedly connected to the second absorption pipe through the receiving ring.

6. The waste film recovery device for cement bag laminating line according to claim 5 is characterized in that: The mixing mechanism also includes a guide plate fixedly connected to both sides of the inner wall of the circulation box at an angle, and a first blocking plate and a second blocking plate are fixedly connected to the inside of the circulation box; a shearing mechanism for pre-cutting the waste edge film is commonly provided between the first blocking plate and the second blocking plate, and the shearing mechanism includes a bracket fixedly connected to the inside of the circulation box, and the inside of the bracket is hinged with a first shearing plate and a second shearing plate, and the structure and function of the first shearing plate and the second shearing plate are the same; one end of the tail of the first shearing plate and the second shearing plate is respectively provided with a first electric telescopic rod and a second electric telescopic rod fixedly connected to the circulation box; the inner sides of the first shearing plate and the second shearing plate are fixedly connected with three-tooth plates arranged in a linear manner, and triangular plates are fixedly connected on both sides of the inner wall of the circulation box, and the inner sides of the triangular plates are fixedly connected with arc rods arranged in a linear manner, and the arc rods pass through the interior of the three-tooth plates.

7. The waste film recovery device for cement bag laminating line according to claim 6 is characterized in that: The inner bottom of the circulation box is also provided with a crushing mechanism for further crushing the sheared edge film. The crushing mechanism includes a first driving rod and a second driving rod rotatably connected to the inside of the circulation box, and one end of the first driving rod and the second driving rod passes through the second blocking plate and are fixedly connected to the first crushing roller and the second crushing roller respectively. The other end of the first driving rod passes through the circulation box and is fixedly connected to the second servo motor. The side of the first driving rod close to the second servo motor is fixedly connected to the first gear, and the outer cylindrical surface of the second driving rod is fixedly connected to the second gear, and the second gear is meshed with the first gear.

8. The waste film recovery device for cement bag laminating line according to claim 7 is characterized in that: The outer surfaces of the first crushing roller and the second crushing roller are both provided with a cleaning mechanism, the cleaning mechanism includes a first stripping knife and a second stripping knife respectively arranged on the outer surfaces of the first crushing roller and the second crushing roller, and a movable component for adjusting the position of the first stripping knife and the second stripping knife is provided on both sides of the inner wall of the circulation box, and the movable component includes a fixed frame fixedly connected to one side of the outer surface of the second blocking plate, an inner end of the fixed frame is rotatably connected to a threaded rod, and a fixed rod is fixedly connected to the middle of the inner part 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 together, one end of the movable seat is provided with a second threaded sleeve meshing with the threaded rod, and a belt drive component used in conjunction with the crushing mechanism is provided on the side of the threaded rod close to the fixed frame.

9. The waste film recovery device for cement bag laminating line according to claim 8, characterized in that: The front side of the receiving box is slidably connected to a baffle, and one side of the receiving box is provided with a screening mechanism for sorting waste edge film. The screening mechanism includes a limit frame fixedly connected to one side of the inner wall of the receiving box, and the internal rotatable connection of the limit frame is provided with a screening barrel, and a ring plate is fixedly connected to the middle of the outer circular surface of the screening barrel. The bottom of the screening barrel is threadedly connected to a bearing cover, and the top of the screening barrel is fixedly connected to a gear plate. A third gear meshing with the second gear is provided on one side of the bottom of the circulation box, and a rotating rod is fixedly connected to the inside of the third gear. Support seats fixedly connected to the circulation box are provided at both ends of the rotating rod, and a bevel gear meshing with the gear plate is provided on one side of the outer circular surface of the rotating rod; a stirring rod is rotatably connected to the middle of the interior of the screening barrel, and 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, and one end of the stirring rod passes through the bearing cover and is threadedly connected to the threaded seat.

10. A method for using the waste film recovery device for a cement bag laminating line according to claim 9, characterized in that: The method of use includes the following steps: S1: By starting the first servo motor, the adjustment rod is driven to rotate, and the first threaded sleeve is used to drive the adjustment seat to move axially along the limit rod, the cutting blade is synchronously adjusted to the target width, and the traction component is used to link the first and second absorption tubes to slide in the fixed cylinder, so that the absorption cylinder is accurately aligned with the cutting point; S2: The support mechanism is hydraulically pressed down to make the cutting blade contact the film roll. The winding motor drives the roll to rotate to complete the cutting. At the same time, the vacuum pump is started to seal the waste film through the shrink tube and transport it to the flow box. S3: After the waste film slides into the shearing zone through the guide plate, the shearing mechanism is used to move the first shear plate and the second shear plate closer to each other, and then the three tooth plates meshing with each other shear the waste edge film, cutting it into segmented waste edge film for subsequent processing; S4: The segmented waste film falls into the gap between the first crushing roller and the second crushing roller, and the second servo motor is started, which drives the first gear to rotate through the first driving rod. The engagement of the first gear and the second gear then rotates the second driving rod, so that the two crushing rollers begin to further crush the waste film. S5: After crushing, the material falls into the screening barrel, and the bevel gear drives the gear plate to drive the screening barrel to rotate centrifugally, so that the qualified particles are thrown out through the sieve holes and become recycled materials. The stirring rod drives the scraper to scrape the inner wall to prevent the sieve holes from being blocked.

Images