Automatic slitting device for PE cast film processing

Abstract

The invention discloses an automatic slitting device for PE cast film processing, and relates to the technical field of plastic processing, the automatic slitting device comprises a bottom plate, an equipment frame is fixedly arranged at the top of the bottom plate, and a slitting mechanism for automatically slitting and cutting a PE cast film is arranged on one side in the equipment frame; a plurality of clamping mechanisms used for clamping and limiting paper tubes are arranged on one side of the slitting mechanism through a transmission mechanism. By arranging the slitting mechanism, the transmission mechanism and the clamping mechanism, the slitting mechanism and the transmission mechanism operate to drive the clamping mechanism to move, the clamping mechanism works, different paper tube lengths can be adjusted and adapted according to the slitting requirements of different widths, the whole paper tube does not need to be cut, the machining procedures are reduced, and the machining efficiency is improved. The slitting efficiency of the slitting device is improved; and by arranging the material conveying mechanism, the material conveying mechanism works, the wound paper tube can be driven to leave the winding mechanism, the workload is reduced, and the slitting efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic processing, in particular to an automatic slitting device for processing PE cast film. Background Art

[0002] PE cast film, also known as polyethylene cast film, is a flat extruded film made of polyethylene (PE) resin as the main raw material through a melt quenching process. This film has many excellent properties, such as softness, transparency, non-toxicity, moisture resistance, water resistance, gas isolation and freshness preservation, etc. Therefore, it is widely used in many fields. The production process of PE cast film mainly includes the following steps: (1) Raw material preparation: Polyethylene (PE) particles are selected as the production raw materials. According to product requirements, different brands of polyethylene particles can be selected to achieve the required film quality; (2) Melt extrusion: The prepared polyethylene particles are placed in a melter for melting. The molten polyethylene is fused and compressed by the screw of the extruder and pushed into the die under high temperature and high pressure; (3) Die extrusion: The molten polyethylene is extruded through the nozzle of the die to form a continuous film. In this step, the design of the die and the temperature control are crucial to the molding quality of the film; (4) Cooling and shaping: After the extruded PE film is extruded through the die, it will go through a cooling process. Cooling can be done by cold air or cold water to reduce the film temperature and make it Curing: The cooling roller plays a key role in this process. Its rotation speed, temperature and surface finish will affect the cooling effect and quality of the film. (5) Stretching: The cooled PE film needs to be stretched to further improve the strength of the film. During the stretching process, the width of the film can be controlled by adjusting the spacing of the stretching rollers. Stretching can also change the physical properties of the film, such as transparency and ductility. (6) Winding: After stretching, the film is rolled into a roll by a winding mechanism. The winding can be carried out according to customer requirements. It can be a flat roll, a hydraulic roll or a shaftless automatic roll. (7) Inspection: The PE film after winding needs to be inspected for quality. Common inspection items include thickness, width, transparency, tensile strength, etc. These inspection items ensure that the quality and performance of the product meet the standards. (8) Packaging: The PE film roll is packaged by a packaging machine to ensure the neatness and safety of the product. The packaged product can be easily stored and transported. After the PE cast film is rolled, if the large roll of film needs to be divided into multiple small rolls or strips of a specific width, a slitting device is required to slit the rolled PE cast film.

[0003] When the existing slitting device is in use, generally, the PE cast film strips that are uniformly rolled and slit by the entire paper roll are used. After the strips are rolled up, the paper roll often needs to be cut and segmented according to specific production requirements. There are many steps, which reduces the slitting efficiency of the slitting device. When the existing slitting device is in use, the disassembly of the rolled paper roll is generally done manually, which increases the workload and reduces the slitting efficiency. In view of the above problems, the inventor proposes an automatic slitting device for PE cast film processing to solve the above problems. Summary of the invention

[0004] In order to solve the problem that, when the existing slitting device is used, generally, the PE cast film strips that are uniformly rolled and slit by the entire paper roll are used, and after the strips are rolled up, the paper roll often needs to be cut and segmented according to specific production requirements, which results in many steps and reduces the slitting efficiency of the slitting device; and when the existing slitting device is used, the rolled paper roll is generally disassembled manually, which increases the workload and reduces the slitting efficiency; the purpose of the present invention is to provide an automatic slitting device for PE cast film processing.

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: an automatic slitting device for processing PE cast film, comprising a bottom plate, a device frame is fixedly arranged on the top of the bottom plate, a slitting mechanism for automatically slitting and cutting the PE cast film is arranged on one side of the inside of the device frame, the slitting mechanism comprises a first fixed plate, first cylinders are symmetrically fixedly installed at both ends of the top of the first fixed plate, a second fixed plate is fixedly arranged at the bottom of the first fixed plate, a first slide rail is fixedly arranged at the center of one side of the second fixed plate, a first slider is fixedly arranged at the center of one side of the first slider, a plurality of second sliders are symmetrically slidably arranged at both ends of one side of the first slider, a third fixed plate is fixedly arranged on one side of the first slider and the second slider, and two third fixed plates located on both sides Two first connecting strips are hingedly provided on one side of the fixed plate, and two second connecting strips are hingedly provided on one side of the plurality of third fixed plates located in the middle and near the middle, and one end of the four first connecting strips is respectively hingedly matched with one end of four second connecting strips, a fourth fixing plate is fixedly provided on the top of the third fixing plate, a third sliding block is fixedly provided on the top of the fourth fixing plate, a first grooved plate is slidably provided on the surface of the third sliding block, a U-shaped fixing strip is fixedly provided on the bottom of the third fixing plate, a slitting knife for slitting the PE cast film is fixedly provided inside the U-shaped fixing strip by bolts, a second cylinder is fixedly installed on one end of one side of the second fixing plate through the first connecting block, and an output end of the second cylinder is fixedly connected to one of the third fixing plates through the second connecting block The slitting mechanism is connected to the paper tube by a transmission mechanism on one side, and a plurality of clamping mechanisms for clamping and limiting the paper tube are provided on the one side of the slitting mechanism through a transmission mechanism. The clamping mechanism includes a mounting block, a plurality of middle strips are fixedly provided on the outer rings on both sides of the mounting block, and a rotating ring that rotatably cooperates with the circular hole is fixedly provided between the plurality of middle strips. Fixed plates are symmetrically fixedly provided on both sides of the mounting block, a plurality of sliding grooves are opened on the outer ring of one side of the fixed plate, a fifth slider is slidably provided on the sliding groove, a moving strip that slidably cooperates with the sliding groove is fixedly provided on one end of one side of the fifth slider, a third groove-shaped plate is fixedly provided on the other end of one side of the moving strip, a sixth slider is slidably provided inside the third groove-shaped plate, a first mounting strip is fixedly provided on one end of the sixth slider, and a rotating ring that rotatably cooperates with the circular hole is fixedly provided on one side of the first mounting strip The cam is provided with a first gear which is meshed with the first gear and a second gear which is meshed with the first gear.A second electric telescopic device is fixedly installed on one side of the third mounting bar, a first fixed block is fixedly provided on the output end of the second electric telescopic device, a fixed ring is fixedly provided between the two first fixed blocks on the same side, an annular groove is provided on the inner wall of the fixed ring, a plurality of first inner rods are slidably provided inside the annular groove, a first outer rod fixedly provided on the surface of the first inner rod and fixedly matched with the top of the sixth slider is slidably provided, the transmission mechanism comprises a second groove plate, a plurality of fourth sliders are slidably provided inside the second groove plate, a fifth fixed plate is fixedly provided at the bottom of the fourth slider, a sixth fixed plate fixedly provided at one end of the fifth fixed plate and fixedly matched with one side of the fourth fixed plate, circular holes arranged opposite to the clamping mechanism are symmetrically provided at both ends of one side of the fifth fixed plate, arc holes connected with the winding mechanism are symmetrically provided on both sides of the circular hole, a winding mechanism for winding a paper tube is provided below the transmission mechanism, and a material transport mechanism for loading and unloading the paper tube is provided on one side of the transmission mechanism.

[0006] Preferably, the winding mechanism includes two symmetrically arranged seventh fixed plates, four winding rollers slidably matched with the arc holes are rotatably provided between the two seventh fixed plates, a first motor is fixedly installed on one side of one of the seventh fixed plates, an output end of the first motor passes through the seventh fixed plate and is fixedly provided with a third rotating shaft, the third rotating shaft is provided with a fourth rotating shaft through a synchronous belt and a synchronous wheel transmission, one end of the winding roller passes through the seventh fixed plate and is fixedly provided with a fifth rotating shaft, a pulley is mounted on the surface of the fifth rotating shaft, and the four pulleys are connected by a conveyor belt transmission, second fixed blocks are symmetrically fixedly provided at both ends of the two seventh fixed plates, a third cylinder is fixedly provided at the bottom of the second fixed block, and a third fixed block is fixedly provided at the bottom of the third cylinder, seventh sliders are symmetrically fixedly provided at both ends of the other side of the seventh fixed plate, a fourth grooved plate is slidably provided on the surface of the seventh slider, and one end of the third fixed block and one side of the fourth grooved plate are both fixedly matched with one side of the inner wall of the equipment frame.

[0007] Preferably, the material transporting mechanism comprises a plurality of L-shaped stabilizing plates, a plurality of eighth fixing plates are fixedly provided on the top of the L-shaped stabilizing plate, a first movable plate is fixedly provided on the top of the eighth fixing plate, first rollers are symmetrically rotatably provided at both ends of the top of the first movable plate, second slide rails are slidably provided between a plurality of pairs of the first rollers, a ninth fixing plate is fixedly provided on one side of one of the eighth fixing plates, a second outer sleeve is fixedly provided on one end of the ninth fixing plate, a second movable plate is fixedly provided on the top of the second outer sleeve, second rollers are symmetrically rotatably provided at both ends of the top of the second movable plate, third slide rails are slidably provided between a plurality of pairs of the second rollers, a second inner rod is slidably provided in the second outer sleeve, a connecting shaft is rotatably provided on one side of the second inner rod, and a connection between the first connecting strip and the second connecting strip is connected to the connecting shaft One end is fixedly matched, the first cylinder, the first groove plate, the second groove plate, the second slide rail and the top of the third slide rail are all fixedly matched with the top of the inner wall of the equipment frame, two intermediate plates are fixedly provided on one side of the inner wall of the L-shaped stabilizing plate, a U-shaped mounting frame is fixedly provided at the bottom of the intermediate plate, a second motor is fixedly installed at one end of the U-shaped mounting frame, the output end of the second motor passes through the U-shaped mounting frame and is fixedly provided with a screw rod rotatably matched with one end of the inner wall of the U-shaped mounting frame, the surface of the screw rod is threaded with a movable block that is engaged with the top of the inner wall of the U-shaped mounting frame, a fourth cylinder is fixedly installed at the bottom of the movable block, an intermediate block is fixedly provided at the output end of the fourth cylinder, a fifth cylinder is symmetrically hinged at both ends of the bottom of the intermediate block, and the output end of the fifth cylinder is hinged to a feed plate hingedly matched with the center of the bottom of the intermediate block.

[0008] Preferably, a reel roller is rotatably provided on one side below the equipment frame, a transition roller is rotatably provided at the center below the equipment frame, a fixed roller is fixedly provided on the other side below the equipment frame, and a plurality of grooves arranged opposite to the slitting knife are opened on the surface of the fixed roller.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The present invention sets a slitting mechanism, a transmission mechanism and a clamping mechanism, so that the slitting mechanism and the transmission mechanism are operated, and the clamping mechanism is driven to move. The clamping mechanism is operated to adjust and adapt to different paper tube lengths according to the requirements of slitting with different widths, without cutting the entire paper tube, reducing the processing steps and improving the slitting efficiency of the slitting device; by setting a material transport mechanism, the material transport mechanism is operated, and the wound paper tube can be driven to leave the winding mechanism, reducing the workload and further improving the slitting efficiency;

[0011] 2. The present invention utilizes the second cylinder to drive the slitting knife to move, thereby driving the fifth fixed plate and the clamping mechanism to move, and then utilizes the first straight gear to rotate and drive the clamping block to move in a direction away from the fixed plate to firmly clamp the two ends of the inner wall of the paper tube, thereby achieving the clamping and limiting of the paper tube;

[0012] 3. The present invention utilizes the rotation of the screw to drive the movable block to move to the top of the paper tube, and then utilizes the fifth cylinder to extend it, driving the feed plate to rotate, clamping the wound paper tube, starting the second motor to reverse it, driving the wound paper tube to leave the top of the winding roller, and then the wound paper tube can be removed, and then replaced with a new paper tube to repeat the strip cutting operation of the PE cast film. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention from the first viewing angle.

[0015] Figure 2 It is a schematic diagram of the overall second viewing angle structure of the present invention.

[0016] Figure 3 It is a schematic cross-sectional structural diagram of the present invention as a whole.

[0017] Figure 4 It is a schematic diagram of the structure of the clamping mechanism of the present invention.

[0018] Figure 5 It is a schematic diagram of the structure of the stripping mechanism of the present invention.

[0019] Figure 6 It is a schematic diagram of the transmission mechanism structure of the present invention.

[0020] Figure 7 It is a schematic diagram of the structure of the material transport mechanism of the present invention.

[0021] Figure 8 It is a schematic diagram of the winding mechanism structure of the present invention.

[0022] Fig. 9 It is a schematic diagram of the connection structure between the rack and the second spur gear of the present invention.

[0023] Fig.10 It is a schematic diagram of the connection structure between the fourth grooved plate and the seventh sliding block of the present invention.

[0024] Fig.11 For the present invention Figure 3 Schematic diagram of the local enlarged structure of A.

[0025] In the figure: 1, bottom plate; 2, equipment frame; 3, slitting mechanism; 301, first fixed plate; 302, first cylinder; 303, second fixed plate; 304, first slide rail; 305, first slider; 306, second slider; 307, third fixed plate; 308, first connecting bar; 309, second connecting bar; 310, fourth fixed plate; 311, third slider; 312, first groove plate; 313, U-shaped fixed bar; 314, slitting knife; 315, second cylinder; 4, transmission mechanism; 401, second grooved plate; 402, fourth slider; 403, fifth fixed plate; 404, sixth fixed plate; 5, clamping mechanism; 501, mounting block; 502, middle bar; 503, rotating ring; 504, fixed plate; 505, fifth slider; 506, moving bar; 507, third grooved plate; 508, first mounting bar; 509, clamping block; 510, first rotating shaft; 511, first spur gear; 512, second mounting bar; 513, first electric telescopic device; 514, rack; 515, second rotating shaft shaft; 516, second spur gear; 517, third spur gear; 518, third mounting bar; 519, second electric telescopic device; 520, first fixed block; 521, fixed ring; 522, first inner rod; 523, first outer rod; 6, winding mechanism; 601, seventh fixed plate; 602, winding roller; 603, first motor; 604, third rotating shaft; 605, second fixed block; 606, third cylinder; 607, third fixed block; 608, fourth groove plate; 609, seventh slider; 7, transport Material mechanism; 701, L-shaped stabilizing plate; 702, eighth fixed plate; 703, second slide rail; 704, ninth fixed plate; 705, first movable plate; 706, second outer sleeve; 707, second inner rod; 708, connecting shaft; 709, middle plate; 710, U-shaped mounting frame; 711, second motor; 712, screw rod; 713, movable block; 714, fourth cylinder; 715, middle block; 716, fifth cylinder; 717, feed plate; 8, unwinding roller; 9, transition roller; 10, fixed roller. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example: Figure 1-11 As shown, the present invention provides an automatic slitting device for PE cast film processing, comprising a bottom plate 1, and a device frame 2 is fixedly arranged on the top of the bottom plate 1:

[0028] A slitting mechanism 3 for automatically slitting the PE cast film is provided on one side of the equipment frame 2, and the slitting mechanism 3 includes a first fixed plate 301, first cylinders 302 are symmetrically fixedly installed at both ends of the top of the first fixed plate 301, a second fixed plate 303 is fixedly provided at the bottom of the first fixed plate 301, a first slide rail 304 is fixedly provided at the center of one side of the second fixed plate 303, a first slider 305 is fixedly provided at the center of one side of the first slider 304, a plurality of second sliders 306 are symmetrically slidably provided at both ends of one side of the first slider 304, a third fixed plate 307 is fixedly provided on one side of the first slider 305 and the second slider 306, two first connecting strips 308 are hingedly provided on one side of the two third fixed plates 307 located on both sides, and two first connecting strips 308 are hingedly provided on one side of the plurality of third fixed plates 307 located in the middle and close to the middle. Two connecting strips 309, one end of the four first connecting strips 308 is hingedly matched with one end of four of the second connecting strips 309 respectively, a fourth fixing plate 310 is fixedly provided on the top of the third fixing plate 307, a third slider 311 is fixedly provided on the top of the fourth fixing plate 310, a first grooved plate 312 is slidably provided on the surface of the third slider 311, a U-shaped fixing strip 313 is fixedly provided on the bottom of the third fixing plate 307, a slitting knife 314 for slitting the PE cast film is fixedly provided inside the U-shaped fixing strip 313 by bolts, a second cylinder 315 is fixedly installed on one end of one side of the second fixing plate 303 through the first connecting block, and an output end of the second cylinder 315 is fixedly connected to one of the third fixing plates 307 through the second connecting block, so that the extension or shortening of the second cylinder 315 can drive the slitting knife 314 to move;

[0029] A plurality of clamping mechanisms 5 for clamping and limiting the paper tube are provided on one side of the slitting mechanism 3 through the transmission mechanism 4. The transmission mechanism 4 includes a second grooved plate 401, and a plurality of fourth sliders 402 are slidably provided inside the second grooved plate 401. A fifth fixing plate 403 is fixedly provided at the bottom of the fourth slider 402. A sixth fixing plate 404 fixedly matched with one side of the fourth fixing plate 310 is fixedly provided at one end of the fifth fixing plate 403. Circular holes arranged opposite to the clamping mechanism 5 are symmetrically provided at both ends of one side of the fifth fixing plate 403. Arc holes connected to the winding mechanism 6 are symmetrically provided on both sides of the circular hole, so that the movement of the slitting knife 314 can drive the fifth fixing plate 403 and the clamping mechanism 5 to move. The clamping mechanism 5 includes a mounting block 501, and the outer rings on both sides of the mounting block 501 A plurality of middle bars 502 are fixedly provided, and a rotating ring 503 rotatably matched with the circular hole is fixedly provided between the plurality of middle bars 502. Fixed plates 504 are symmetrically fixedly provided on both sides of the mounting block 501. A plurality of sliding grooves are provided on the outer ring of one side of the fixed plate 504. A fifth slider 505 is slidably provided in the sliding groove. A moving bar 506 slidably matched with the sliding groove is fixedly provided at one end of one side of the fifth slider 505. A third grooved plate 507 is fixedly provided at the other end of one side of the moving bar 506. A sixth slider is slidably provided inside the third grooved plate 507. A first mounting bar 508 is fixedly provided at one end of the sixth slider. A clamping block 509 for clamping and limiting the paper tube is fixedly provided on one side of the first mounting bar 508, so that the movement of the fifth slider 505 can drive the clamping block 509 to move. The first rotating shaft 510 is rotatably provided at one side of the fixed plate 504, and the first rotating shaft 510 is fitted with a first spur gear 511. A plurality of through holes that slide with the moving bar 506 are provided on one side of the first spur gear 511. A second mounting bar 512 is symmetrically fixed at one end of the top and bottom of the mounting block 501, and a first electric retractor 513 is fixedly installed on one side of the second mounting bar 512. A rack 514 is fixedly provided at the output end of the first electric retractor 513. A mounting groove is symmetrically provided at the other end of the top and bottom of the mounting block 501, and a second rotating shaft 515 is rotatably provided in the mounting groove. A second spur gear 516 meshing with the rack 514 is fitted on the surface of the second rotating shaft 515, and one end of the second rotating shaft 515 passes through the mounting groove and is fitted with a second spur gear 516 meshing with the first spur gear 511. The third spur gear 517 makes the first electric retractor 513 extend or shorten, which can drive the first spur gear 511 to rotate. Two third mounting bars 518 are fixedly provided at both ends of the mounting block 501. A second electric retractor 519 is fixedly installed on one side of the third mounting bar 518. A first fixed block 520 is fixedly provided at the output end of the second electric retractor 519. A fixed ring 521 is fixedly provided between the two first fixed blocks 520 on the same side. An annular groove is provided on the inner wall of the fixed ring 521. A plurality of first inner rods 522 are slidably provided inside the annular groove. A first outer rod 523 fixedly matched with the top of the sixth slider is slidably provided on the surface of the first inner rod 522. The extension or shortening of the second electric retractor 519 can drive the clamping block 509 to move.

[0030] A winding mechanism 6 for winding the paper roll is provided below the transmission mechanism 4. The winding mechanism 6 includes two symmetrically arranged seventh fixed plates 601. Four winding rollers 602 that are slidably matched with the arc-shaped holes are rotatably provided between the two seventh fixed plates 601. A first motor 603 is fixedly installed on one side of one of the seventh fixed plates 601. A third rotating shaft 604 is fixedly provided on the output end of the first motor 603 through the seventh fixed plate 601. The third rotating shaft 604 is provided with a fourth rotating shaft through a synchronous belt and a synchronous wheel. One end of the winding roller 602 passes through the seventh fixed plate 601 and is fixedly provided with a fifth rotating shaft. The surface of the fifth rotating shaft is provided with Pulleys, the four pulleys are connected through a conveyor belt transmission, the two seventh fixed plates 601 are symmetrically fixed with second fixed blocks 605 at both ends, the second fixed blocks 605 are fixedly installed with a third cylinder 606 at the bottom, and the third fixed block 607 is fixedly installed at the bottom of the third cylinder 606, and the seventh sliders 609 are symmetrically fixed with the other two ends of the seventh fixed plate 601, and the surface of the seventh slider 609 is slidably provided with a fourth groove plate 608, one end of the third fixed block 607 and one side of the fourth groove plate 608 are fixedly matched with one side of the inner wall of the equipment frame 2, so that the rotation of the third rotating shaft 604 can drive the winding roller 602 to rotate;

[0031] A material transport mechanism 7 for loading and unloading paper tubes is provided on one side of the transmission mechanism 4. The material transport mechanism 7 includes a plurality of L-shaped stabilizing plates 701. A plurality of eighth fixed plates 702 are fixedly provided on the top of the L-shaped stabilizing plates 701. A first movable plate 705 is fixedly provided on the top of the eighth fixed plate 702. First rollers are symmetrically provided at both ends of the top of the first movable plate 705 for rotation. Second slide rails 703 are slidably provided between multiple pairs of first rollers. A ninth fixed plate 704 is fixedly provided on one side of one of the eighth fixed plates 702. A second outer sleeve 706 is fixedly provided on one end of the ninth fixed plate 704. A second movable plate is fixedly provided on the top of the second outer sleeve 706. Second rollers are symmetrically provided at both ends of the top of the second movable plate for rotation. A third slide rail is slidably provided between multiple pairs of second rollers. A second inner rod 707 is slidably provided in the second outer sleeve 706. A connecting shaft 708 is rotatably provided on one side of the second inner rod 707. The connection between the first connecting strip 308 and the second connecting strip 309 is fixedly matched with one end of the connecting shaft 708. The first cylinder 302, the first grooved plate 312, and the second The grooved plate 401, the second slide rail 703 and the top of the third slide rail are all fixedly matched with the top of the inner wall of the equipment frame 2, so that the movement of the connecting shaft 708 can drive the L-shaped stable plate 701 to move. Two intermediate plates 709 are fixedly provided on one side of the inner wall of the L-shaped stable plate 701. A U-shaped mounting frame 710 is fixedly provided at the bottom of the intermediate plate 709. A second motor 711 is fixedly installed at one end of the U-shaped mounting frame 710. The output end of the second motor 711 passes through the U-shaped mounting frame 710 and is fixedly provided with a rotating shaft 708 connected to one end of the inner wall of the U-shaped mounting frame 710. A screw rod 712 is movably engaged, and a movable block 713 is threadedly provided on the surface of the screw rod 712 and engaged with the top of the inner wall of the U-shaped mounting frame 710. A fourth cylinder 714 is fixedly installed at the bottom of the movable block 713. An intermediate block 715 is fixedly provided at the output end of the fourth cylinder 714. A fifth cylinder 716 is symmetrically hinged at both ends of the bottom of the intermediate block 715. The output end of the fifth cylinder 716 is hinged to a conveying plate 717 which is hingedly engaged with the center of the bottom of the intermediate block 715, so that the rotation of the second motor 711 can drive the conveying plate 717 to move.

[0032] A reel 8 is rotatably provided on one side below the equipment frame 2, a transition roller 9 is rotatably provided at the center below the equipment frame 2, and a fixed roller 10 is fixedly provided on the other side below the equipment frame 2. A plurality of grooves are provided on the surface of the fixed roller 10 which are arranged opposite to the slitting knife 314, so that the reel 8 can reel off the rolled PE cast film.

[0033] Working principle: When it is necessary to cut the rolled PE cast film into strips, the rolled PE cast film is installed on the unwinding roller 8. First, according to the production requirements of the PE cast film, the specific width of the PE cast film strip after the stripping is completed is determined, and then the distance between the stripping knife 314 and the different clamping mechanisms 5 is adjusted according to the width of the PE cast film, so as to strip the PE cast film and clamp and limit the paper tubes of different sizes. The specific operation process is as follows:

[0034] The second cylinder 315 is started to extend or shorten to drive the second connecting block to move, and then drive the third fixed plate 307 connected thereto to move, and through the transmission effect of the first connecting bar 308 and the second connecting bar 309, drive the other third fixed plates 307 and the second slider 306 to expand or tighten, and then drive the slitting knife 314 to expand or tighten. During the movement of the slitting knife 314, the distances between different slitting knives 314 are the same, so as to meet the slitting requirements of cutting PE cast films of different widths;

[0035] When the slitting knife 314 moves, the fifth fixing plate 403 is driven to move, and then the different clamping mechanisms 5 are driven to move, so that the distances between the different clamping mechanisms 5 are always kept consistent, so that the size of the paper tube clamped by the clamping mechanism 5 is adapted to the width of the PE cast film strip;

[0036] When the paper tube needs to be clamped, it is placed between the corresponding two clamping mechanisms 5 and on the winding roller 602, and the second electric retractor 519 is started to extend and drive the first fixed block 520 to move toward the direction close to the paper tube, thereby driving the fixed ring 521, the first inner rod 522 and the first outer rod 523 to move toward the paper tube between the two clamping mechanisms 5, thereby driving the sixth slider, the first mounting bar 508 and the clamping block 509 to be inserted into the interior of the paper tube, and starting the first electric retractor 513 to extend or shorten it. The rack 514 is driven to move, and then the second spur gear 516 and the third spur gear 517 are driven to rotate with the second rotating shaft 515 as the axis, and then the first spur gear 511 is driven to rotate with the first rotating shaft 510 as the axis, and then the moving bar 506 is driven to slide along the perforation, and then the fifth slider 505 is driven to move along the slide groove in the direction away from the fixed plate 504, and then the clamping block 509 is driven to move in the direction away from the fixed plate 504 to firmly clamp the two ends of the inner wall of the paper tube, thereby achieving the clamping and limiting of the paper tube;

[0037] When the PE cast film needs to be slit, the first cylinder 302 is started to extend, and the slitting knife 314 is driven to move downward into the groove, so that the PE cast film passing through the fixed roller 10 can be slit, and the PE cast film after slitting is rolled on the corresponding paper roll, and the first motor 603 is started to rotate, driving the third rotating shaft 604 to rotate, and through the transmission action of the synchronous belt and the synchronous wheel, the fourth rotating shaft is driven to rotate, and then the pulley is driven to rotate around the fifth rotating shaft, and then the winding roller 602 is driven to rotate around the fifth rotating shaft, and then the paper roll in contact with the winding roller 602 is driven to rotate, and at the same time, the third cylinder 606 is made to continuously contract at a set distance, driving the winding roller 602 to move downward to adapt to winding more and more paper rolls, thereby completing the winding operation of the PE cast film;

[0038] When the winding process of the PE cast film strip after slitting is completed and it needs to be unloaded, the second motor 711 is started to rotate, driving the screw 712 to rotate, and then driving the movable block 713 to move to the top of the paper roll, and the fourth cylinder 714 is started to extend it, driving the two feed plates 717 to move to the two sides of the paper roll after winding, and then the fifth cylinder 716 is started to extend it, driving the feed plates 717 to rotate, clamping the paper roll after winding, and then the fourth cylinder 714 is started to shorten it, driving the paper roll after winding to leave the winding roller 602, and then the second motor 711 is started to reverse, driving the paper roll after winding to leave the top of the winding roller 602, and then the paper roll after winding can be removed, and then a new paper roll can be replaced to repeat the PE cast film slitting and cutting operation.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An automatic slitting device for PE cast film processing, comprising a bottom plate (1), characterized in that: An equipment frame (2) is fixedly provided on the top of the bottom plate (1); a slitting mechanism (3) for automatically slitting the PE cast film is provided on one side of the interior of the equipment frame (2); a plurality of clamping mechanisms (5) for clamping and limiting the paper tube are provided on one side of the slitting mechanism (3) through a transmission mechanism (4); a winding mechanism (6) for winding the paper tube is provided below the transmission mechanism (4); and a material transport mechanism (7) for loading and unloading the paper tube is provided on one side of the transmission mechanism (4).

2. The automatic slitting device for PE cast film processing according to claim 1, characterized in that: The stripping mechanism (3) comprises a first fixed plate (301), first cylinders (302) are symmetrically fixedly installed at both ends of the top of the first fixed plate (301), a second fixed plate (303) is fixedly arranged at the bottom of the first fixed plate (301), a first slide rail (304) is fixedly arranged at the center of one side of the second fixed plate (303), a first slider (305) is fixedly arranged at the center of one side of the first slider (304), a plurality of second sliders (306) are symmetrically slidably arranged at both ends of one side of the first slider (304), a third fixed plate (307) is fixedly arranged at one side of the first slider (305) and the second slider (306), two first connecting strips (308) are hingedly arranged at one side of two third fixed plates (307) located at both sides, and two first connecting strips (308) are hingedly arranged at one side of a plurality of third fixed plates (307) located in the middle and close to the middle. The third fixing plate (307) is provided with a fourth fixing plate (310) fixedly disposed on the top of the third fixing plate (307), a third sliding block (311) fixedly disposed on the top of the fourth fixing plate (310), a first groove-shaped plate (312) slidingly disposed on the surface of the third sliding block (311), a U-shaped fixing plate (313) fixedly disposed on the bottom of the third fixing plate (307), a slitting knife (314) for slitting the PE cast film is fixedly disposed inside the U-shaped fixing plate (313) by bolts, a second cylinder (315) is fixedly mounted on one end of one side of the second fixing plate (303) by a first connecting block, and an output end of the second cylinder (315) is fixedly connected to one of the third fixing plates (307) by a second connecting block.

3. The automatic slitting device for PE cast film processing according to claim 2, characterized in that: The transmission mechanism (4) comprises a second grooved plate (401), a plurality of fourth sliding blocks (402) are slidably arranged inside the second grooved plate (401), a fifth fixing plate (403) is fixedly arranged at the bottom of the fourth sliding block (402), a sixth fixing plate (404) fixedly matched with one side of the fourth fixing plate (310) is fixedly arranged at one end of the fifth fixing plate (403), circular holes which are arranged opposite to the clamping mechanism (5) are symmetrically opened at both ends of one side of the fifth fixing plate (403), and arc holes which are connected to the winding mechanism (6) are symmetrically opened on both sides of the circular hole.

4. The automatic slitting device for PE cast film processing according to claim 3, characterized in that: The clamping mechanism (5) comprises a mounting block (501), a plurality of middle bars (502) are fixedly provided on the outer rings of both sides of the mounting block (501), a rotating ring (503) rotatably matched with the circular hole is fixedly provided between the plurality of middle bars (502), a fixed plate (504) is fixedly provided on both sides of the mounting block (501) symmetrically, a plurality of sliding grooves are provided on the outer ring of one side of the fixed plate (504), a fifth slider (505) is slidably provided on the sliding groove, a moving bar (506) slidably matched with the sliding groove is fixedly provided on one end of one side of the fifth slider (505), a third groove-shaped plate (507) is fixedly provided on the other end of one side of the moving bar (506), a sixth slider is slidably provided inside the third groove-shaped plate (507), a first mounting bar (508) is fixedly provided on one end of the sixth slider, and a clamping block (509) for clamping and limiting the paper tube is fixedly provided on one side of the first mounting bar (508).

5. The automatic slitting device for PE cast film processing according to claim 4, characterized in that: A first rotating shaft (510) is rotatably provided at the center of one side of the fixed plate (504), and a first spur gear (511) is mounted on the first rotating shaft (510). A plurality of through holes for slidingly matching with the moving bar (506) are provided on one side of the first spur gear (511). Second mounting bars (512) are symmetrically fixedly provided at the top and one end of the bottom of the mounting block (501), and a first electric telescopic device (513) is fixedly installed on one side of the second mounting bar (512). A rack (514) is fixedly provided at the output end of the first electric telescopic device (513). Mounting grooves are symmetrically provided at the other ends of the top and the bottom of the mounting block (501), and a second rotating shaft (515) is rotatably provided in the mounting groove. A second spur gear (516) meshing with the rack (514) is mounted on the surface of the second rotating shaft (515), and a third spur gear (517) meshing with the first spur gear (511) is mounted on one end of the second rotating shaft (515) through the mounting groove.

6. The automatic slitting device for PE cast film processing according to claim 4, characterized in that: Two third mounting bars (518) are fixedly provided at both ends of the mounting block (501); a second electric telescopic device (519) is fixedly provided on one side of the third mounting bar (518); a first fixing block (520) is fixedly provided at the output end of the second electric telescopic device (519); a fixing ring (521) is fixedly provided between the two first fixing blocks (520) located on the same side; an annular groove is provided on the inner wall of the fixing ring (521); a plurality of first inner rods (522) are slidably provided inside the annular groove; a first outer rod (523) fixedly matched with the top of the sixth sliding block is slidably provided on the surface of the first inner rod (522).

7. The automatic slitting device for PE cast film processing according to claim 3, characterized in that: The winding mechanism (6) comprises two symmetrically arranged seventh fixed plates (601), four winding rollers (602) slidably matched with the arc-shaped holes are rotatably arranged between the two seventh fixed plates (601), a first motor (603) is fixedly installed on one side of one of the seventh fixed plates (601), the output end of the first motor (603) passes through the seventh fixed plate (601) and is fixedly provided with a third rotating shaft (604), the third rotating shaft (604) is provided with a fourth rotating shaft through a synchronous belt and a synchronous wheel, one end of the winding roller (602) passes through the seventh fixed plate (601) and is fixedly provided with a fifth rotating shaft, the surface of the fifth rotating shaft is covered with a leather The four pulleys are connected by a conveyor belt transmission, the two ends of the two seventh fixed plates (601) are symmetrically fixed with second fixed blocks (605), the bottom of the second fixed block (605) is fixedly installed with a third cylinder (606), the bottom of the third cylinder (606) is fixedly provided with a third fixed block (607), the other two ends of the seventh fixed plate (601) are symmetrically fixed with seventh sliding blocks (609), the surface of the seventh sliding block (609) is slidably provided with a fourth grooved plate (608), one end of the third fixed block (607) and one side of the fourth grooved plate (608) are fixedly matched with one side of the inner wall of the equipment frame (2).

8. The automatic slitting device for PE cast film processing according to claim 2, characterized in that: The material transport mechanism (7) comprises a plurality of L-shaped stable plates (701), a plurality of eighth fixed plates (702) are fixedly provided on the top of the L-shaped stable plates (701), a first movable plate (705) is fixedly provided on the top of the eighth fixed plate (702), first rollers are symmetrically rotated at both ends of the top of the first movable plate (705), a second slide rail (703) is slidably provided between a plurality of pairs of the first rollers, a ninth fixed plate (704) is fixedly provided on one side of one of the eighth fixed plates (702), a second outer sleeve (706) is fixedly provided on one end of the ninth fixed plate (704), and the second outer sleeve (706) is fixed on the top A second movable plate is provided, and second rollers are symmetrically rotatably provided at both ends of the top of the second movable plate, and a third slide rail is slidably provided between multiple pairs of the second rollers. A second inner rod (707) is slidably provided in the second outer sleeve (706), and a connecting shaft (708) is rotatably provided on one side of the second inner rod (707). The connection between the first connecting strip (308) and the second connecting strip (309) is fixedly matched with one end of the connecting shaft (708), and the first cylinder (302), the first groove plate (312), the second groove plate (401), the second slide rail (703) and the top of the third slide rail are all fixedly matched with the top of the inner wall of the equipment frame (2).

9. An automatic slitting device for PE cast film processing as claimed in claim 8, characterized in that: Two intermediate plates (709) are fixedly provided on one side of the inner wall of the L-shaped stabilizing plate (701); a U-shaped mounting frame (710) is fixedly provided on the bottom of the intermediate plate (709); a second motor (711) is fixedly provided on one end of the U-shaped mounting frame (710); a screw rod (712) is fixedly provided on the output end of the second motor (711) through the U-shaped mounting frame (710) and is rotatably matched with one end of the inner wall of the U-shaped mounting frame (710); and a screw rod (712) is provided on the surface of the screw rod (712). A movable block (713) is provided on the top of the inner wall of the U-shaped mounting frame (710); a fourth cylinder (714) is fixedly installed on the bottom of the movable block (713); an intermediate block (715) is fixedly provided on the output end of the fourth cylinder (714); a fifth cylinder (716) is symmetrically hingedly provided at both ends of the bottom of the intermediate block (715); and the output end of the fifth cylinder (716) is hingedly provided on a material conveying plate (717) hingedly matched with the center of the bottom of the intermediate block (715).

10. The automatic slitting device for PE cast film processing according to claim 2, characterized in that: A reeling roller (8) is rotatably provided on one side below the equipment frame (2), a transition roller (9) is rotatably provided at the center below the equipment frame (2), and a fixed roller (10) is fixedly provided on the other side below the equipment frame (2), wherein a plurality of grooves arranged opposite to the slitting knife (314) are provided on the surface of the fixed roller (10).

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