A slitting and lapping device for plastic extruded sheet

Abstract

The application discloses a kind of cutting and suction edge devices of plastic extruded sheet, including mounting frame, conveying assembly and cutting assembly are installed on the mounting frame, two feeding assemblies are installed on the conveying assembly, clamping assembly is installed on the feeding assembly, the conveying assembly is used to convey sheet and wind waste, the cutting assembly is used to cut sheet, the feeding assembly is used to drive clamping assembly horizontal movement.In the application, the third motor drives the cutting knife to rotate through the connecting shaft, the first gear, the gear ring, the rotating disc and the second bidirectional threaded rod, and simultaneously drives the supporting roller, the fixed arm and the clamping assembly to move, the clamping assembly is used to clamp and move the sheet, and the automatic installation of the sheet is realized.This design facilitates the operator to quickly install the sheet in the device, reduces the operation difficulty, and improves the installation efficiency.

Description

Technical Field

[0001] This invention relates to the field of extruded sheet slitting equipment, and more specifically, to a slitting and edge-removing device for extruded plastic sheets. Background Technology

[0002] Plastic extrusion sheet machines are used in the production of films and other sheet materials. These machines are used to produce plastic sheets through a series of processes including melting, extrusion, stretching, and cooling, transforming raw materials into sheets. In the workflow of a plastic extrusion sheet machine, the melter melts plastic granules, the extruder extrudes the molten plastic into thin sheets of a specific shape, and then, through stretching and cooling, finally forms a film. To ensure continuous and efficient production, plastic extrusion sheet machines are usually also equipped with a slitting and edge-collecting device to collect and recycle the cut waste material.

[0003] For example, document CN216807543U discloses a slitting and edge-suction device for a plastic extrusion casting film machine. The device in the document can realize the slitting and edge-suction processing of the sheet, but it has significant inconveniences in actual operation. The device has a large number of rollers for sheet conveying and different installation angles, which undoubtedly increases the difficulty and time consumption of sheet installation. When installing the sheet, the operator often needs to operate manually, which is not only inefficient but also cumbersome and not conducive to improving the smoothness and efficiency of the overall workflow. In view of this, we propose a slitting and edge-suction device for plastic extrusion sheets. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a cutting and edge suction device for plastic extruded sheets, which can effectively realize the rapid installation and cutting of sheets, reduce the difficulty of operation and improve the installation efficiency.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a slitting and edge-suction device for extruded plastic sheets, comprising a mounting frame, on which a conveying assembly and a slitting assembly are mounted. The conveying assembly is equipped with two feeding assemblies, each of which is equipped with a clamping assembly. The conveying assembly is used to convey the sheet and to wind up waste material. The slitting assembly is used to slit the sheet. The feeding assembly is used to drive the clamping assembly to move horizontally. The slitting assembly includes two rotating disks. The mounting bracket has mounting holes on both sides. The rotating disks are rotatably connected to the inner walls of the corresponding mounting holes. A guide rod is fixedly connected between the two rotating disks. Two guide grooves are formed on the outer circumference of the guide rod. A second bidirectional threaded rod is rotatably connected between the two rotating disks. A gear ring and a second bracket suitable for being driven to rotate are fixedly connected to the outer side of one of the rotating disks. A second motor is fixedly connected to the inner wall of the second bracket. The output end of the second motor is fixedly connected to the second bidirectional threaded rod. The second bidirectional threaded rod has two mounting arms connected to the outer circumference of the threaded connection. A limit frame is fixedly connected to the top of the mounting arm. Rotatable balls are embedded on both sides of the inner wall of the limit frame. The two balls are rolledly connected to the inner wall of the guide groove. A slitting blade is fixedly connected to the outer wall of the mounting arm.

[0006] Preferably, the conveying assembly includes two supporting hinge seats, and a limiting groove is formed at the bottom of the inner wall of the mounting frame. The two supporting hinge seats are slidably connected to the limiting groove. A first bidirectional threaded rod is rotatably connected to the inner wall of the mounting frame. The ends of the first bidirectional threaded rod pass through the two supporting hinge seats and are threadedly connected to them. A supporting arm is rotatably connected to the inner wall of each supporting hinge seat.

[0007] Preferably, the mounting bracket has limit holes on both sides, and a first slider is slidably connected to the inner wall of each limit hole. A connecting hinge is fixedly connected to the bottom of each first slider, and the bottom of each connecting hinge is rotatably connected to the corresponding support arm. A first rotating shaft is rotatably connected between the two first sliders, and a roller is fixedly connected to the outer circumference of the first rotating shaft.

[0008] Preferably, the mounting frame has sliding holes on both sides, and a first sliding rod is fixedly connected to the inner wall of each sliding hole. Two support blocks are slidably connected to the inner wall of each sliding hole. The ends of the first sliding rods pass through the corresponding two support blocks and are slidably connected to them. A first spring is sleeved on both ends of the first sliding rod. The ends of the first springs are connected to the corresponding support blocks and the mounting frame. The inner wall of the mounting frame has two second rotating shafts with an upper and lower structure. Clamping rollers are fixedly connected to the outer circumference of each second rotating shaft. The ends of the second rotating shafts are rotatably connected to the corresponding support blocks on both sides.

[0009] Preferably, a take-up shaft is rotatably connected to the inner wall of the mounting frame, a first bracket is fixedly connected to the outer wall of the mounting frame, a first motor is fixedly connected to the inner wall of the first bracket, and the output end of the first motor is fixedly connected to the take-up shaft. A vacuum cleaner is fixedly connected to the inner wall of the mounting frame, and two guide rollers are rotatably connected to the inner wall of the mounting frame.

[0010] Preferably, the slitting assembly further includes two connecting shafts and a third bracket. The ends of the two connecting shafts are rotatably connected to the outer wall of the mounting frame, and a first gear is fixedly connected to the outer circumference of each of the two connecting shafts. The two first gears mesh with each other. The end of the third bracket is fixedly connected to the mounting frame, and a third motor is fixedly connected to the inner wall of the third bracket. The output end of the third motor is fixedly connected to the connecting shaft located below, and the first gear located below meshes with the gear ring.

[0011] Preferably, the feeding assembly includes a first limiting plate and a sliding plate. The outer wall of the first limiting plate is fixedly connected to the outer wall of the mounting frame. A first toothed plate is slidably connected to the protrusion of the first limiting plate. The first toothed plate meshes with a first gear located above. A docking plate is fixedly connected to the side wall of the first toothed plate. A second toothed plate is fixedly connected to the outer wall of the docking plate. The second toothed plate is slidably connected to the first limiting plate. A moving hole is provided on the outer wall of the sliding plate. A connecting arm is slidably connected to the inner wall of the moving hole. A fixed arm is fixedly connected to the end of the connecting arm. Mounting grooves are provided on both sides of the inner wall of the mounting frame. Moving grooves are provided on the inner walls of the mounting grooves. The sliding plate is fixedly connected to the inner wall of the mounting groove. The connecting arm passes through the moving groove and is slidably connected to it. A third toothed plate is fixedly connected to the bottom of the connecting arm. A fixed plate is fixedly connected to the outer wall of the mounting frame. A second limiting plate is fixedly connected to the fixed plate. The third toothed plate is slidably connected to the second limiting plate.

[0012] Preferably, a third gear is engaged on the outer wall of the first toothed plate, the inner wall of the third gear is fixedly connected to the end of the first bidirectional threaded rod, a second gear is engaged on the top of the third toothed plate, a third rotating shaft is fixedly connected to the inner wall of the second gear, the end of the third rotating shaft is rotatably connected to the outer wall of the mounting bracket, and the second gear is engaged with the second toothed plate.

[0013] Preferably, the clamping assembly includes two extrusion plates, the ends of the two extrusion plates are respectively fixedly connected to the fixing arm, an electric clamp is fixedly connected to the inner wall of the extrusion plate near the inner side, and a limit block is fixedly connected between the two extrusion plates; Two expansion blocks are slidably connected between the two extrusion plates. Each expansion block has a vertical surface at its end. Support arms are fixedly connected to the relatively close sides of the two expansion blocks. The height of the extrusion plates is the same as the distance between the second rotating shafts inside the two clamping rollers in the closed state.

[0014] Preferably, grooves are formed on the relatively close sides of the two expansion blocks. A second slide rod is fixedly connected to the inner wall of each groove. A second spring is sleeved on the outer circumference of each second slide rod. A second slider is slidably connected to the inner wall of each groove. The two ends of the second spring are respectively connected to the corresponding second slider and the corresponding extrusion plate. The ends of the second slide rod are slidably connected to the corresponding second slider. Side plates are fixedly connected to the relatively close sides of the two second sliders. Two fourth rotating shafts are rotatably connected between the two side plates. Torsion springs are sleeved on both ends of each fourth rotating shaft. Limit sleeves are fixedly connected to the ends of each fourth rotating shaft. Rotating arms are fixedly connected to the outer circumference of each fourth rotating shaft. The ends of the rotating arms are rotatably connected to the corresponding support arms.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, the slitting blade rotates upwards around the rotating disk towards the support roller. When the first gear located below rotates, it drives the first toothed plate to move upwards through the meshing first gear above, which indirectly drives the first bidirectional threaded rod to rotate, causing the support roller to descend. When the first toothed plate slides upwards, it indirectly drives the fixed arm to move horizontally, causing the fixed arm to move closer to the two clamping rollers. The fixed arm drives the clamping assembly to move, and the two extrusion plates and two expansion blocks on the clamping assembly successively extrude pressure on the two second rotating shafts, causing the two clamping rollers to separate. When the expansion blocks extrude pressure on the second rotating shafts, the rotating arm is limited by the limiting block. At this time, the expansion blocks can effectively extrude pressure on the second rotating shafts. When the two expansion blocks penetrate... When the sheet passes between the two second rotating shafts, it is held between the two clamping rollers by the elastic force of the first spring. The fixed arm drives the clamping assembly to move in the opposite direction. At this time, the two second rotating shafts are blocked by the vertical surface of the expansion block, causing the rotating arm to move away from the limiting block. When the second slider moves to the end of the groove, the squeezing force of the second rotating shaft on the vertical surface increases. At this time, the expansion block drives the rotating arm to rotate, and the expansion block can move inward to the extrusion plate. The second rotating shaft can slide out from the extrusion plate. At the same time, the distance between the two clamping rollers is small, which can firmly clamp the sheet. This design makes it easy for operators to quickly install the sheet inside the device, reduces the difficulty of operation, and improves the installation efficiency.

[0016] 2. In this invention, when the third motor starts running, it drives the first gear located below to rotate via the connecting shaft. The rotation of the first gear drives the rotating disk to rotate via the gear ring. The rotation of the rotating disk drives the second bidirectional threaded rod to rotate. The rotation of the second bidirectional threaded rod drives the slitting blade to rotate, so that the slitting blade rotates upward of the roller around the rotating disk. Meanwhile, the operation of the second motor drives the second bidirectional threaded rod to rotate, so that the balls inside the limiting frame can roll along the inner wall of the guide groove on the guide rod. At the same time, the two mounting arms can drive the slitting blade to move, thereby adjusting the position of the two slitting blades. This design can adjust the position of the slitting blades according to the slitting requirements to achieve automatic blade alignment.

[0017] 3. In this invention, the continuous waste generated after the two sides of the sheet are cut is wound onto the take-up shaft. The take-up shaft is driven to rotate by the first motor, so that the waste can be wound and recycled. The debris generated by the sheet cutting edge will fall into the mounting frame. The debris can be cleaned by a vacuum cleaner, which facilitates the recycling of waste and the cleaning of debris. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the conveying component of the present invention; Figure 3 This is a partial structural schematic diagram of the conveying component of the present invention; Figure 4 This is a schematic cross-sectional view of a partial structure of the conveying component of the present invention; Figure 5 This is a schematic diagram of the overall structure of the slitting component of the present invention; Figure 6 This is a partial structural schematic diagram of the slitting component of the present invention; Figure 7 This is a schematic diagram of the overall structure of the limiting frame of the present invention; Figure 8 This is a schematic diagram of the overall structure of the feeding assembly of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of point A in the middle; Figure 10 This is a schematic diagram of the overall structure of the clamping assembly of the present invention; Figure 11 This is a schematic diagram of the internal structure of the clamping assembly of the present invention; Figure 12 This is a schematic diagram of the installation structure of the side plate of the present invention.

[0020] Explanation of the numbers in the diagram: 1. Conveying assembly; 101. Mounting bracket; 102. Limiting groove; 103. Support hinge; 104. First bidirectional threaded rod; 105. Support arm; 106. Connecting hinge; 107. Limiting hole; 108. First slider; 109. First rotating shaft; 110. Idler roller; 111. Guide roller; 112. Mounting groove; 113. Moving groove; 114. Mounting hole; 115. First bracket; 116. First motor; 117. Rewinding shaft; 118. Sliding hole; 119. First sliding rod; 120. First spring; 121. Support block; 122. Second rotating shaft; 123. Clamping roller; 124. Vacuum cleaner; 2. Slitting assembly; 201. Rotary disk; 202. Guide rod; 203. Guide groove; 204. Second bidirectional threaded rod; 205. Gear ring; 206. Second bracket; 207. Second motor; 208. Third bracket; 209. Third motor; 2 10. Connecting shaft; 211. First gear; 212. Limiting frame; 213. Ball bearing; 214. Mounting arm; 215. Slitting blade; 3. Feeding assembly; 301. First limiting plate; 302. First toothed plate; 303. Butt joint plate; 304. Second toothed plate; 305. Third rotating shaft; 306. Second gear; 307. Third gear; 308. Second limiting plate; 309. Fixing plate; 310. Third toothed plate; 311. Connecting arm 312, Slide plate; 313, Moving hole; 314, Fixed arm; 4, Clamping assembly; 401, Extrusion plate; 402, Expansion block; 403, Vertical surface; 404, Groove; 405, Second slide bar; 406, Second spring; 407, Second slider; 408, Side plate; 409, Fourth rotating shaft; 410, Torsion spring; 411, Limiting sleeve; 412, Rotating arm; 413, Support arm; 414, Limiting block; 415, Electric clamp. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] Example 1: As Figure 1-12As shown, a slitting and edge-suction device for extruded plastic sheets includes a mounting frame 101. A conveying assembly 1 and a slitting assembly 2 are mounted on the mounting frame 101. Two feeding assemblies 3 are mounted on the conveying assembly 1, and each feeding assembly 3 is equipped with a clamping assembly 4. The conveying assembly 1 is used to convey the sheet and to rewind waste material. The slitting assembly 2 is used to slit the sheet. The feeding assembly 3 is used to drive the clamping assembly 4 to move horizontally. The slitting assembly 2 includes two rotating disks 201. Mounting holes 114 are respectively opened on both sides of the mounting bracket 101. The rotating disks 201 are rotatably connected to the inner walls of the corresponding mounting holes 114. A guide rod 202 is fixedly connected between the two rotating disks 201. Two guide grooves 203 are opened on the outer circumference of the guide rod 202. A second bidirectional threaded rod 204 is rotatably connected between the two rotating disks 201. A gear ring 205 suitable for being driven to rotate and a second bracket 206 are fixedly connected to the outer side of one of the rotating disks 201. A second motor 207 is fixedly connected to the inner wall of the second bracket 206. The output end of the second motor 207 is fixedly connected to the second bidirectional threaded rod 204. The second bidirectional threaded rod 204 has two mounting arms 214 connected to the outer circumference of the threaded connection. The top of the mounting arm 214 is fixedly connected to a limit frame 212. Rotatable balls 213 are embedded on both sides of the inner wall of the limit frame 212. The two balls 213 are respectively connected to the inner wall of the guide groove 203 in a rolling connection. A slitting blade 215 is fixedly connected to the outer wall of the mounting arm 214.

[0023] Example 2: This example provides a slitting and edge-suction device for extruded plastic sheets, which, based on Example 1, further includes the following structure: like Figures 2-4 As shown, the conveying assembly 1 includes two support hinges 103. A limiting groove 102 is opened at the bottom of the inner wall of the mounting frame 101. The two support hinges 103 are slidably connected to the limiting groove 102. A first bidirectional threaded rod 104 is rotatably connected to the inner wall of the mounting frame 101. The ends of the first bidirectional threaded rod 104 pass through the two support hinges 103 respectively and are threadedly connected to them. A support arm 105 is rotatably connected to the inner wall of each support hinge 103. The mounting bracket 101 has limit holes 107 on both sides. The inner wall of each limit hole 107 is slidably connected to a first slider 108. The bottom of each first slider 108 is fixedly connected to a connecting hinge 106. The bottom of each connecting hinge 106 is rotatably connected to a corresponding support arm 105. A first rotating shaft 109 is rotatably connected between the two first sliders 108. A roller 110 is fixedly connected to the outer circumference of the first rotating shaft 109. The mounting bracket 101 has sliding holes 118 on both sides. A first sliding rod 119 is fixedly connected to the inner wall of each sliding hole 118. Two support blocks 121 are slidably connected to the inner wall of each sliding hole 118. The ends of the first sliding rods 119 pass through the corresponding two support blocks 121 and are slidably connected to them. A first spring 120 is sleeved on both ends of the first sliding rods 119. The ends of the first springs 120 are respectively connected to the corresponding support blocks 121 and the mounting bracket 101. The inner wall of the mounting bracket 101 has two second rotating shafts 122 with an upper and lower structure. Clamping rollers 123 are fixedly connected to the outer circumference of each second rotating shaft 122. The ends of the second rotating shafts 122 are rotatably connected to the corresponding support blocks 121 on both sides. A take-up shaft 117 is rotatably connected to the inner wall of the mounting frame 101, and a first bracket 115 is fixedly connected to the outer wall of the mounting frame 101. A first motor 116 is fixedly connected to the inner wall of the first bracket 115, and the output end of the first motor 116 is fixedly connected to the take-up shaft 117. A vacuum cleaner 124 is fixedly connected to the inner wall of the mounting bracket 101, and two guide rollers 111 are rotatably connected to the inner wall of the mounting bracket 101.

[0024] Example 3: This example provides a slitting and edge-suction device for extruded plastic sheets, which, based on Example 2, further includes the following structure: like Figures 5-7 As shown, the slitting assembly 2 also includes two connecting shafts 210 and a third bracket 208. The ends of the two connecting shafts 210 are rotatably connected to the outer wall of the mounting frame 101, and a first gear 211 is fixedly connected to the outer circumference of each of the two connecting shafts 210. The two first gears 211 mesh with each other. The end of the third bracket 208 is fixedly connected to the mounting frame 101, and a third motor 209 is fixedly connected to the inner wall of the third bracket 208. The output end of the third motor 209 is fixedly connected to the connecting shaft 210 located below, and the first gear 211 located below meshes with the gear ring 205.

[0025] Example 4: This example provides a slitting and edge-suction device for extruded plastic sheets, which, based on Example 3, further includes the following structure: like Figure 2 , Figure 4 , Figure 8 and Figure 9As shown, the feeding assembly 3 includes a first limiting plate 301 and a sliding plate 312. The outer wall of the first limiting plate 301 is fixedly connected to the outer wall of the mounting bracket 101. A first toothed plate 302 is slidably connected to the protrusion of the first limiting plate 301. The first toothed plate 302 meshes with the first gear 211 located above. A docking plate 303 is fixedly connected to the side wall of the first toothed plate 302. A second toothed plate 304 is fixedly connected to the outer wall of the docking plate 303. The second toothed plate 304 is slidably connected to the first limiting plate 301. A moving hole 313 is provided on the outer wall of the sliding plate 312. A connecting plate is slidably connected to the inner wall of the moving hole 313. The connecting arm 311 has a fixed arm 314 fixedly connected to its end. The inner walls of the mounting frame 101 are respectively provided with mounting grooves 112 on both sides. The inner walls of the mounting grooves 112 are each provided with a moving groove 113. The sliding plate 312 is fixedly connected to the inner wall of the mounting groove 112. The connecting arm 311 passes through the moving groove 113 and is slidably connected to it. The bottom of the connecting arm 311 is fixedly connected with a third toothed plate 310. The outer wall of the mounting frame 101 is fixedly connected with a fixed plate 309. The fixed plate 309 is fixedly connected with a second limiting plate 308. The third toothed plate 310 is slidably connected to the second limiting plate 308. The outer wall of the first toothed plate 302 is engaged with a third gear 307. The inner wall of the third gear 307 is fixedly connected to the end of the first bidirectional threaded rod 104. The top of the third toothed plate 310 is engaged with a second gear 306. The inner wall of the second gear 306 is fixedly connected with a third rotating shaft 305. The end of the third rotating shaft 305 is rotatably connected to the outer wall of the mounting bracket 101. The second gear 306 is engaged with the second toothed plate 304.

[0026] Example 5: This example provides a slitting and edge-suction device for extruded plastic sheets, which, based on Example 4, further includes the following structure: like Figures 10-12 As shown, the clamping assembly 4 includes two extrusion plates 401. The ends of the two extrusion plates 401 are respectively fixedly connected to the fixed arm 314. An electric clamp 415 is fixedly connected to the inner wall of the extrusion plate 401 near the inner side. A limit block 414 is fixedly connected between the two extrusion plates 401. Two expansion blocks 402 are slidably connected between the two extrusion plates 401. Each expansion block 402 has a vertical surface 403 at its end. Support arms 413 are fixedly connected to the relatively close side of the two expansion blocks 402. The height of the extrusion plate 401 is the same as the distance between the second rotating shafts 122 inside the two clamping rollers 123 in the closed state. Two expansion blocks 402 have grooves 404 on their relatively close sides. A second slide rod 405 is fixedly connected to the inner wall of each groove 404. A second spring 406 is sleeved on the outer circumference of each second slide rod 405. A second slider 407 is slidably connected to the inner wall of each groove 404. The two ends of the second spring 406 are respectively connected to the corresponding second slider 407 and the corresponding extrusion plate 401. The ends of the second slide rod 405 are slidably connected to the corresponding second slider 407. A side plate 408 is fixedly connected to the relatively close side of each of the two second sliders 407. Two fourth rotating shafts 409 are rotatably connected between the two side plates 408. A torsion spring 410 is sleeved on both ends of each fourth rotating shaft 409. A limit sleeve 411 is fixedly connected to the end of each fourth rotating shaft 409. A rotating arm 412 is fixedly connected to the outer circumference of each fourth rotating shaft 409. The ends of the rotating arm 412 are rotatably connected to the corresponding support arm 413.

[0027] The working principle of this plastic extruded sheet slitting and edge suction device is as follows: The movable end of the sheet is passed under the two guide rollers 111, and then the movable end of the sheet is clamped by two electric clamps 415, so that the movable end of the sheet is in a taut state. When the third motor 209 starts running, it drives the first gear 211 located below to start rotating through the connecting shaft 210. The rotation of the first gear 211 drives the rotating disk 201 to rotate through the gear ring 205. The rotation of the rotating disk 201 drives the second bidirectional threaded rod 204 to rotate. The rotation of the second bidirectional threaded rod 204 drives the slitting knife 215 to rotate, so that the slitting knife 215 rotates upward of the idler roller 110 with the rotating disk 201 as the center. When the first gear 211 located below rotates, it drives the first toothed plate 302 to move upward through the meshing first gear 211 above. The first toothed plate 302 drives the first bidirectional threaded rod 104 to rotate through the third gear 307. At this time, the two support hinge seats 103 slide along the inner wall of the limiting groove 102. The two support hinge seats 103 pull the roller 110 on the first rotating shaft 109 to descend through the support arm 105. When the first toothed plate 302 slides upward, it drives the second toothed plate 304 to move upward through the docking plate 303. The second toothed plate 304 drives the third toothed plate 310 to slide along the top of the second limiting plate 308 through the second gear 306. At the same time, the third toothed plate 310 slides along the inner wall of the moving hole 313 through the connecting arm 311, and drives the fixed arm 314 to move horizontally, so that the fixed arm 314 moves closer to the two clamping rollers 123. The clamping assembly 4 is moved by the fixed arm 314. When the clamping assembly 4 moves horizontally, the roller 110 moves to the bottom of the clamping assembly 4, which can avoid the two colliding with each other. The two extrusion plates 401 and two expansion blocks 402 on the clamping assembly 4 successively extrude the two second rotating shafts 122, so that the two second rotating shafts 122 respectively drive the support block 121 to slide along the first slide rod 119. At this time, the first spring 120 is compressed and the two clamping rollers 123 separate. The second motor 207 drives the second bidirectional threaded rod 204 to rotate, so that the ball 213 inside the limit frame 212 can roll along the inner wall of the guide groove 203 on the guide rod 202. At the same time, the two mounting arms 214 can drive the slitting blade 215 to move, and the position of the two slitting blades 215 can be adjusted. When the expansion block 402 presses against the second rotating shaft 122, the rotating arm 412 is limited by the limiting block 414. At this time, the expansion block 402 can effectively press against the second rotating shaft 122. When the two expansion blocks 402 pass through the two second rotating shafts 122, the sheet passes through the two clamping rollers 123. Under the elastic force of the first spring 120, the two clamping rollers 123 clamp the sheet. Then the third motor 209 runs, driving the first gear 211 located below to rotate in the opposite direction through the connecting shaft 210, so that the slitting blade 215 rotates downward of the roller 110 with the rotating disk 201 as the center, and the roller 110 pushes the sheet upward to move, so that the contact point between the top of the roller 110 and the two clamping rollers 123 remains horizontal. At the same time, the fixed arm 314 drives the clamping assembly 4 to move in the opposite direction. At this time, the two second rotating shafts 122 are blocked by the vertical surface 403 on the expansion block 402 and overcome the elastic force of the second spring 406, pushing the expansion block 402 to move. The expansion block 402 pushes the rotating arm 412 to move through the support arm 413. The rotating arm 412 can push the second slider 407 to slide along the outer wall of the second slide rod 405, so that the rotating arm 412 moves away from the limiting block 414. When the second slider 407 moves to the end of the groove 404, the pressure of the second rotating shaft 122 on the vertical surface 403 increases. At this time, the expansion block 402 drives the rotating arm 412 to rotate. The expansion block 402 can move to the inside of the extrusion plate 401, and the second rotating shaft 122 can slide off the extrusion plate 401. At the same time, the distance between the two clamping rollers 123 is small, which can firmly clamp the sheet. After the clamping assembly 4 moves out from between the two second rotating shafts 122, it continues to move until the idler roller 110 pushes the sheet upward and moves it. At the same time, the slitting blade 215 rotates downward. After the slitting blade 215 contacts the sheet at the top of the idler roller 110, the third motor 209 stops running, so that the movable end of the sheet is pulled and moved when the winding machine is winding. The slitting blade 215 can cut the side of the sheet. The continuous waste generated after cutting off both sides of the sheet is wound onto the take-up shaft 117. The first motor 116 drives the take-up shaft 117 to rotate, which can realize the winding and recycling of the waste. The debris generated by the cutting edge of the sheet will fall into the mounting frame 101, and the debris can be cleaned up by the vacuum cleaner 124.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slitting and edge-suction device for extruded plastic sheets, characterized in that: The system includes a mounting frame (101), on which a conveying assembly (1) and a slitting assembly (2) are mounted. The conveying assembly (1) is equipped with two feeding assemblies (3), each of which is equipped with a clamping assembly (4). The conveying assembly (1) is used to convey the sheet material and to rewind the waste material. The slitting assembly (2) is used to slit the sheet material. The feeding assembly (3) is used to drive the clamping assembly (4) to move horizontally. The slitting assembly (2) includes two rotating disks (201). The mounting bracket (101) has mounting holes (114) on both sides. The rotating disks (201) are rotatably connected to the inner walls of the corresponding mounting holes (114). A guide rod (202) is fixedly connected between the two rotating disks (201). Two guide grooves (203) are opened on the outer circumference of the guide rod (202). A second bidirectional threaded rod (204) is rotatably connected between the two rotating disks (201). A gear ring (205) suitable for being driven to rotate and a second bracket (206) are fixedly connected to the outer side of one of the rotating disks (201). A second motor (207) is fixedly connected to the inner wall of the second bracket (206). The output end of the second motor (207) is fixedly connected to the second bidirectional threaded rod (204). The second bidirectional threaded rod (204) has two mounting arms (214) threadedly connected to the outer circumference of the rod. The top of the mounting arm (214) is fixedly connected to a limit frame (212). Rotatable balls (213) are embedded on both sides of the inner wall of the limit frame (212). The two balls (213) are respectively rolledly connected to the inner wall of the guide groove (203). A slitting blade (215) is fixedly connected to the outer wall of the mounting arm (214). The clamping assembly (4) includes two extrusion plates (401), an electric clamp (415) is fixedly connected to the inner wall of the extrusion plate (401) near the inner side, and a limit block (414) is fixedly connected between the two extrusion plates (401). Two expansion blocks (402) are slidably connected between the two extrusion plates (401). Each expansion block (402) has a vertical surface (403) at its end. Support arms (413) are fixedly connected to the relatively close side of the two expansion blocks (402). The two expansion blocks (402) have grooves (404) on their relatively close sides. A second slide rod (405) is fixedly connected to the inner wall of each groove (404). A second spring (406) is sleeved on the outer circumference of each second slide rod (405). A second slider (407) is slidably connected to the inner wall of each groove (404). The two ends of the second spring (406) are respectively connected to the corresponding second slider (407) and the corresponding extrusion plate (401). The ends of the second slide rods (405) are respectively connected to the corresponding second sliders (407) and extrusion plates (401). 7) Sliding connection: Side plates (408) are fixedly connected to the relatively close sides of the two second sliders (407). Two fourth rotating shafts (409) are rotatably connected between the two side plates (408). Torsion springs (410) are respectively sleeved at both ends of the fourth rotating shafts (409). Limit sleeves (411) are fixedly connected to the ends of the fourth rotating shafts (409). Rotating arms (412) are fixedly connected to the outer circumference of the fourth rotating shafts (409). The ends of the rotating arms (412) are rotatably connected to the corresponding support arms (413).

2. The slitting and edge-suction device for extruded plastic sheets according to claim 1, characterized in that: The conveying assembly (1) includes two support hinges (103). A limiting groove (102) is provided at the bottom of the inner wall of the mounting frame (101). The two support hinges (103) are slidably connected to the limiting groove (102). A first bidirectional threaded rod (104) is rotatably connected to the inner wall of the mounting frame (101). The ends of the first bidirectional threaded rod (104) pass through the two support hinges (103) and are threadedly connected to them. A support arm (105) is rotatably connected to the inner wall of each support hinge (103).

3. The slitting and edge-suction device for extruded plastic sheets according to claim 2, characterized in that: Limiting holes (107) are respectively opened on both sides of the mounting bracket (101). A first slider (108) is slidably connected to the inner wall of each limiting hole (107). A connecting hinge (106) is fixedly connected to the bottom of each first slider (108). The bottom of each connecting hinge (106) is rotatably connected to the corresponding support arm (105). A first rotating shaft (109) is rotatably connected between the two first sliders (108). A roller (110) is fixedly connected to the outer circumference of the first rotating shaft (109).

4. The slitting and edge-suction device for extruded plastic sheets according to claim 3, characterized in that: The mounting frame (101) has sliding holes (118) on both sides. The inner walls of the sliding holes (118) are fixedly connected to first sliding rods (119). The inner walls of the sliding holes (118) are slidably connected to two support blocks (121). The ends of the first sliding rods (119) pass through the corresponding two support blocks (121) and are slidably connected to them. The two ends of the first sliding rods (119) are respectively fitted with first springs (120). The two ends of the first springs (120) are respectively connected to the corresponding support blocks (121) and the mounting frame (101). The inner wall of the mounting frame (101) has two second rotating shafts (122) with an upper and lower structure. The outer walls of the second rotating shafts (122) are fixedly connected to clamping rollers (123). The two ends of the second rotating shafts (122) are rotatably connected to the corresponding support blocks (121) on both sides. The height of the extrusion plate (401) is the same as the distance between the second rotating shaft (122) inside the two clamping rollers (123) in the closed state.

5. The slitting and edge-suction device for extruded plastic sheets according to claim 4, characterized in that: The inner wall of the mounting frame (101) is rotatably connected to a take-up shaft (117), and the outer wall of the mounting frame (101) is fixedly connected to a first bracket (115). The inner wall of the first bracket (115) is fixedly connected to a first motor (116), and the output end of the first motor (116) is fixedly connected to the take-up shaft (117). A vacuum cleaner (124) is fixedly connected to the inner wall of the mounting bracket (101), and two guide rollers (111) are rotatably connected to the inner wall of the mounting bracket (101).

6. The slitting and edge-suction device for extruded plastic sheets according to claim 5, characterized in that: The slitting assembly (2) further includes two connecting shafts (210) and a third bracket (208). The ends of the two connecting shafts (210) are rotatably connected to the outer wall of the mounting frame (101). The outer circumference of the two connecting shafts (210) is fixedly connected to a first gear (211). The two first gears (211) mesh with each other. The end of the third bracket (208) is fixedly connected to the mounting frame (101). The inner wall of the third bracket (208) is fixedly connected to a third motor (209). The output end of the third motor (209) is fixedly connected to the connecting shaft (210) located below. The first gear (211) located below meshes with the gear ring (205).

7. The slitting and edge-suction device for extruded plastic sheets according to claim 6, characterized in that: The feeding assembly (3) includes a first limiting plate (301) and a sliding plate (312). The outer wall of the first limiting plate (301) is fixedly connected to the outer wall of the mounting frame (101). A first toothed plate (302) is slidably connected to the protrusion of the first limiting plate (301). The first toothed plate (302) meshes with a first gear (211) located above. A docking plate (303) is fixedly connected to the side wall of the first toothed plate (302). A second toothed plate (304) is fixedly connected to the outer wall of the docking plate (303). The second toothed plate (304) is slidably connected to the first limiting plate (301). A moving hole (313) is provided on the outer wall of the sliding plate (312). A connecting arm (311) is slidably connected to the inner wall of the moving hole (313). A fixed arm (314) is fixedly connected to the end of the two extrusion plates (401), and the ends of the two extrusion plates (401) are fixedly connected to the fixed arm (314). The inner walls of the mounting frame (101) are respectively provided with mounting grooves (112), and the inner walls of the mounting grooves (112) are provided with moving grooves (113). The sliding plate (312) is fixedly connected to the inner wall of the mounting groove (112). The connecting arm (311) passes through the moving groove (113) and is slidably connected to it. A third toothed plate (310) is fixedly connected to the bottom of the connecting arm (311). A fixed plate (309) is fixedly connected to the outer wall of the mounting frame (101). A second limiting plate (308) is fixedly connected to the fixed plate (309). The third toothed plate (310) is slidably connected to the second limiting plate (308).

8. The slitting and edge-suction device for extruded plastic sheets according to claim 7, characterized in that: The outer wall of the first toothed plate (302) is engaged with a third gear (307), the inner wall of the third gear (307) is fixedly connected to the end of the first bidirectional threaded rod (104), the top of the third toothed plate (310) is engaged with a second gear (306), the inner wall of the second gear (306) is fixedly connected with a third rotating shaft (305), the end of the third rotating shaft (305) is rotatably connected to the outer wall of the mounting bracket (101), and the second gear (306) is engaged with the second toothed plate (304).

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