Automatic polyethylene film slitting device

Abstract

The present application relates to a kind of polyethylene film automatic slitting device, including shell, feed roller, cutting module and winding module, the shell section is U-shaped structure, shell left side is equipped with feed roller, shell middle part is equipped with cutting module, and shell right side is equipped with winding module.The present application can realize the function of polyethylene film slitting and automatic winding fixation, after adsorption plate adsorbs polyethylene film, so that polyethylene film is in tension state, polyethylene film can avoid wrinkling, it is favorable to the winding of polyethylene film, and can prevent the polyethylene film cut off from falling, after replacing roll core, the end of polyethylene film on adsorption plate can be directly fixed on roll core, it is convenient for worker operation, reduce the labor intensity of worker, glue unit can make the end of polyethylene film after cutting adhere together, prevent the polyethylene film after winding from loose phenomenon.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of slitting devices, in particular to an automatic polyethylene film slitting device. BACKGROUND

[0002] PE film, also known as polyethylene film, is a film produced from polyethylene. The PE film has moisture resistance and low moisture permeability. According to different manufacturing methods and control means, polyethylene films with different properties such as low-density, medium-density, high-density polyethylene and cross-linked polyethylene can be manufactured. After production, the polyethylene film needs to be slitted. The slitting device on the market needs manual cutting and winding fixation of the polyethylene film after slitting. The winding fixation process may cause the polyethylene film to loosen, which is inconvenient for subsequent packaging and increases the labor intensity of workers.

[0003] In the existing polyethylene film slitting device, such as the Chinese patent with the publication number CN213890136U, a polyethylene film slitting device is disclosed. Specifically, it comprises a working support, the inner side surface of the working support is fixedly connected with a mechanical arm, the lower surface of the mechanical arm is provided with a slitting mechanism, the slitting mechanism comprises a cylinder, the cylinder lifts the slitting mechanism, the polyethylene film slitting device is provided with a slitting mechanism, the slitting mechanism comprises a cylinder, a fixed plate, a sliding rod and a blade, the cylinder connected with the fixed plate at the bottom of the mechanical arm on the working support drives the sliding rod to lift, when the cylinder drives the sliding rod to lift, the sliding rod drives the blade at the bottom to lift, and the blade cuts the surface of the polyethylene film during the landing process.

[0004] In the above prior art, the function of slitting the polyethylene film can also be realized, but in the first aspect, the above prior art cannot wind and fix the polyethylene film after slitting, so that the wound polyethylene film may loosen, which is inconvenient for subsequent operation of workers and increases the labor intensity of workers; in the second aspect, the above prior art is inconvenient to replace the slitted and wound polyethylene film, and manual cutting is needed, which is inconvenient for workers to operate and affects the production efficiency; therefore, there is still room for improvement in the existing polyethylene film slitting technology. SUMMARY

[0005] In order to realize the functions of slitting and automatically winding and fixing the polyethylene film, the application provides an automatic polyethylene film slitting device.

[0006] The automatic polyethylene film slitting device provided by the application adopts the following technical scheme:

[0007] The application discloses an automatic cutting device for polyethylene film, which comprises a shell, a feeding roller, a cutting module and a winding module.

[0008] The winding module comprises mounting plates, U-shaped frames, winding units, mounting frames, pressing units, cutting knives, gluing units, adsorption units and telescopic units.

[0009] The gluing unit comprises a fixing frame, a compression frame, a return spring, a glue storage box, a rotating rod, a sticking plate, a gear and a rack plate.

[0010] Preferably, the cutting module comprises supporting rollers, a cutting roller, a cutting knife, a driving motor and guide rollers.

[0011] Preferably, the winding unit comprises clamping joints, a winding roller, clamping assemblies, a rotating shaft and a driving motor.

[0012] Preferably, the clamping assembly comprises a clamping block, a sliding block and a compression spring.

[0013] Preferably, the pressing unit comprises a pressing frame, a connecting plate, a tension spring, a fixed plate and an electric push rod, the inside of the mounting frame is slidably connected with the pressing frame, the inside of the connecting plate is slidably connected with the pressing frame, the tension spring is evenly arranged between the inner side of the connecting plate and the pressing frame, the upper part of the mounting frame is provided with the fixed plate, the end of the fixed plate is arranged on the U-shaped frame, the electric push rod is arranged on the fixed plate, and the top end of the electric push rod penetrates through the mounting frame and the pressing frame and is connected with the connecting plate.

[0014] Preferably, the glue storage box comprises a glue storage capsule and an adsorption sponge, the inside of the middle part of the compression frame is detachably provided with the glue storage capsule, the inside of the glue storage capsule is filled with glue liquid, the outside of the glue storage capsule is provided with the adsorption sponge, and the glue storage capsule is uniformly provided with liquid outlet holes in communication with the adsorption sponge.

[0015] Preferably, the adsorption unit comprises a trapezoidal plate and an adsorption plate, the left side of the U-shaped frame is provided with the trapezoidal plate, the middle part of the trapezoidal plate is provided with a rectangular groove, the adsorption plate is arranged in the rectangular groove, and the right side of the trapezoidal plate is provided with a telescopic unit.

[0016] Preferably, the telescopic unit comprises a U-shaped plate, a connecting frame, a telescopic spring, a pressing roller and a touch switch, the right side of the adsorption unit is provided with the U-shaped plate, the inner side of the U-shaped plate is symmetrically provided with through grooves, the connecting frame is slidably connected between the through grooves, the telescopic spring is arranged between the end of the connecting frame and the U-shaped plate, the middle part of the connecting frame is rotatably connected with the pressing roller, the middle part of the U-shaped plate is provided with the touch switch, and the touch switch is electrically connected with the pressing unit and the winding unit.

[0017] To sum up, the present application has at least one of the following beneficial technical effects:

[0018] 1. In the present application, the clamping assembly is arranged, when it is necessary to replace the winding core, the winding roller is pulled along the clamping groove, the sliding block is in contact with the clamping groove and is extruded, so that the sliding block is retracted into the sliding groove, the compression spring is compressed, so that the winding roller is separated from the clamping head, the winding core on the winding roller is replaced, the winding roller is convenient to disassemble, is favorable to the replacement of the winding core, is favorable to the operation of workers, and the production efficiency is improved;

[0019] 2. In the present application, the gluing unit is arranged, the compression frame moves into the inside of the fixed frame, the reset spring is gradually compressed, the glue storage box is separated from the pasting plate, when the compression frame continues to move into the inside of the fixed frame, the gear is engaged with the rack plate, so that the rotating rod drives the pasting plate to overturn by 180°, then the pasting plate is in contact with the polyethylene film and glues the polyethylene film, the function of automatically gluing the polyethylene film is realized, the end part of the polyethylene film after winding is fixed, and the phenomenon that the polyethylene film after winding is completed is loose is prevented;

[0020] 3. In the present application, the adsorption unit is provided, and in the slitting process, the adsorption plate is always in the open state, the polyethylene film is in tension after being adsorbed by the adsorption plate, so that the polyethylene film can be prevented from wrinkling, which is beneficial to the winding of the polyethylene film, and can prevent the end of the cut polyethylene film from falling off, and after the winding core is replaced, the end of the polyethylene film on the adsorption plate can be directly fixed on the winding core, which is convenient for workers to operate and reduces the labor intensity of workers. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in combination with the drawings and examples.

[0022] Figure 1 is a perspective structural schematic diagram of the present application.

[0023] Figure 2 is a cut structural schematic diagram of the present application.

[0024] Figure 3 is a cut structural schematic diagram of the present application.

[0025] Figure 4 is a cut structural schematic diagram between the shell and the winding module of the present application.

[0026] Figure 5 is a top view of the present application.

[0027] Figure 6 is a cut structural schematic diagram of the winding module of the present application.

[0028] Figure 7 is a cut structural schematic diagram between the shell, the mounting plate, the U-shaped frame and the winding unit of the present application.

[0029] Figure 8 is a cut structural schematic diagram between the mounting frame, the pressing unit, the cutting knife and the gluing unit of the present application.

[0030] Figure 9 is a cut structural schematic diagram of the gluing unit of the present application.

[0031] Figure 10 is a cut structural schematic diagram between the adsorption unit and the telescopic unit of the present application.

[0032] Explanation of reference numerals in the attached drawings: 1. Outer shell; 2. Feeding roller; 3. Cutting module; 31. Support roller; 32. Cutting roller; 33. Cutter; 34. Drive motor one; 35. Guide roller; 4. Rewinding module; 41. Mounting plate; 42. U-shaped frame; 43. Rewinding unit; 431. Snap-fit ​​connector; 432. Rewinding roller; 433. Snap-fit ​​assembly; 4331. Snap-fit ​​block; 4332. Slider; 4333. Compression spring; 434. Rotating shaft; 435. Drive motor two; 44. Mounting frame; 45. Pressing unit; 451. Pressing frame; 452. Connecting plate; 453. 454. Tension spring; 455. Fixing plate; 456. Electric push rod; 477. Cutting knife; 48. Glue application unit; 491. Fixing frame; 402. Compression frame; 473. Return spring; 494. Glue storage box; 4041. Storage capsule; 4942. Absorbent sponge; 495. Rotating rod; 496. Adhesive plate; 497. Gear; 498. Rack plate; 499. Adsorption unit; 490. Trapezoidal plate; 491. Adsorption plate; 492. Telescopic unit; 493. U-shaped plate; 494. Connecting frame; 495. Telescopic spring; 496. Pressure roller; 497. Touch switch. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0034] This application discloses an automatic polyethylene film slitting device, which can slitting polyethylene film and automatically winding and fixing it.

[0035] Reference Figure 1 As shown, this embodiment discloses an automatic polyethylene film slitting device, which includes a housing 1, a feeding roller 2, a cutting module 3, and a winding module 4. The housing 1 has a U-shaped cross-section. The feeding roller 2 is installed on the left side of the housing 1, the cutting module 3 is installed in the middle of the housing 1, and the winding module 4 is installed on the right side of the housing 1.

[0036] Reference Figure 5 As shown, the cutting module 3 includes a support roller 31, a cutting roller 32, a cutter 33, a drive motor 34, and a guide roller 35. The support roller 31 is symmetrically mounted on the upper middle part of the outer shell 1 via bearings. The cutting roller 32 is positioned above the middle of the two support rollers 31. The ends of the cutting roller 32 are mounted on the outer shell 1 via bearings. Cutters 33 are evenly mounted on the cutting roller 32. The drive motor 34 is mounted on the front side of the outer shell 1 via a motor mount. The output shaft of the drive motor 34 passes through the outer shell 1 and is connected to the cutting roller 32. The guide roller 35 is symmetrically mounted on the middle right side of the outer shell 1.

[0037] In actual use, the polyethylene film on the feeding roller 2 is fixed on the winding module 4 through the supporting roller 31, the cutting roller 32 and the guide roller 35 by manual operation. When the polyethylene film needs to be slitting, the driving motor one 34 is started to drive the cutting knife 33 to rotate at a constant speed through the cutting roller 32, so that the polyethylene film is cut into the required width. The distance between the cutting knives 33 can be adjusted to control the width of the polyethylene film during slitting.

[0038] Referring to Figure 6 As shown in the drawings, the winding module 4 comprises a mounting plate 41, a U-shaped frame 42, a winding unit 43, a mounting frame 44, a pressing unit 45, a cutting knife 46, a gluing unit 47, a suction unit 48 and a telescopic unit 49. The mounting plate 41 is symmetrically installed on the right side of the middle part of the shell 1. The U-shaped frame 42 is uniformly installed on the left side surface of the mounting plate 41. The winding unit 43 is installed on the middle part of the U-shaped frame 42. The mounting frame 44 is installed on the left side of the middle part of the U-shaped frame 42. The pressing unit 45 is installed on the middle part of the mounting frame 44. The cutting knife 46 is installed on the left side surface of the outer side of the pressing unit 45. The gluing unit 47 is installed on the right side surface of the outer side of the pressing unit 45. The suction unit 48 is installed on the left side of the U-shaped frame 42. The telescopic unit 49 is installed on the right side of the suction unit 48.

[0039] In actual use, the slitted polyethylene film is wound on the winding unit 43 in an interleaved manner. The telescopic unit 49 presses the polyethylene film on the winding unit 43. When the polyethylene film is wound to a certain thickness, the winding unit 43 stops rotating. The pressing unit 45 moves to the side of the suction unit 48 and presses the polyethylene film. Then the cutting knife 46 cuts the polyethylene film, and at the same time the gluing unit 47 glues the polyethylene film. After gluing, the cutting knife 46, the gluing unit 47 and the pressing unit 45 are reset. The winding unit 43 continues to rotate and winds the cut polyethylene film, so that the ends of the cut polyethylene film can be adhered together to prevent the wound polyethylene film from loosening. Then, the winding core on the winding unit 43 is replaced manually, so that the continuous winding of the film can be realized.

[0040] It should be noted that the suction unit 48 is always in an open state during the slitting of the polyethylene film. After the cutting knife 46 cuts the polyethylene film, the ends of the cut polyethylene film are still adsorbed on the side of the suction unit 48. When the new winding core is replaced, the ends of the polyethylene film on the suction unit 48 are fixed on the replaced winding core.

[0041] Referring to Figure 7As shown, the winding unit 43 comprises a clamping joint 431, a winding roller 432, a clamping assembly 433, a rotating shaft 434 and a second driving motor 435, the middle part of the U-shaped frame 42 is symmetrically provided with the clamping joint 431 through bearings, the inner side of the clamping joint 431 is provided with a clamping groove, the clamping joint 431 is provided with the winding roller 432, the two ends of the winding roller 432 are symmetrically provided with the clamping assembly 433, the clamping assembly 433 is located in the clamping groove, the clamping joint 431 and the housing 1 are provided with the rotating shaft 434, the housing 1 is provided with the second driving motor 435 through a motor base, the output shaft of the second driving motor 435 is connected with the rotating shaft 434 through the housing 1.

[0042] In actual use, when the polyethylene film needs to be slitting, the winding roller 432 with the winding core is clamped between the clamping joints 431, at this time, the rotating shaft 434, the clamping joint 431 and the winding roller 432 are on the same axis, the second driving motor 435 drives the rotating shaft 434 to rotate, the rotating shaft 434 drives the winding roller 432 to rotate synchronously through the clamping joint 431, and the function of uniformly winding the polyethylene film is realized.

[0043] Referring to Figure 7 As shown, the clamping assembly 433 comprises a clamping block 4331, a sliding block 4332 and a compression spring 4333, the two ends of the winding roller 432 are symmetrically provided with the clamping block 4331, the middle part of the clamping block 4331 is symmetrically provided with a sliding groove, the sliding groove is slidably connected with the sliding block 4332, the middle part of the clamping groove is symmetrically provided with a groove, the sliding block 4332 is matched with the groove, and the end of the sliding block 4332 and the sliding groove are provided with the compression spring 4333.

[0044] In actual use, when the winding roller 432 needs to be clamped, the clamping block 4331 is pushed into the clamping groove, the sliding block 4332 is in contact with and pressed by the clamping groove, so that the sliding block 4332 is retracted into the sliding groove, and at this time, the compression spring 4333 is in a compressed state; when the sliding block 4332 moves into the groove, the compression spring 4333 resets to drive the sliding block 4332 to be clamped in the groove, and at this time, the winding roller 432 is clamped between the clamping joints 431; when the winding core needs to be replaced, the winding roller 432 is pulled along the clamping groove, the sliding block 4332 is in contact with and pressed by the clamping groove, so that the sliding block 4332 is retracted into the sliding groove, and the compression spring 4333 is compressed, so that the winding roller 432 is separated from the clamping joint 431, the winding core on the winding roller 432 is replaced, the winding roller 432 is convenient to disassemble, which is conducive to the replacement of the winding core and the operation of workers, and the production efficiency is improved.

[0045] Referring to Figure 8As shown, the pressing unit 45 comprises a pressing frame 451, a connecting plate 452, a tension spring 453, a fixing plate 454 and an electric push rod 455, the pressing frame 451 is slidingly connected inside the mounting frame 44, the connecting plate 452 is slidingly connected inside the pressing frame 451, the tension spring 453 is evenly installed between the inner side of the connecting plate 452 and the pressing frame 451, the fixing plate 454 is arranged above the mounting frame 44, the fixing plate 454 is installed on the U-shaped frame 42 at the end, the electric push rod 455 is installed on the fixing plate 454, and the top end of the electric push rod 455 penetrates through the mounting frame 44 and the pressing frame 451 and is connected with the connecting plate 452.

[0046] In actual use, when the rolled polyethylene film reaches a certain thickness, the winding roller 432 stops rotating, the electric push rod 455 drives the connecting plate 452 to move to one side of the adsorption unit 48, the pressing frame 451 moves synchronously with the connecting plate 452, the end of the pressing frame 451 first contacts the polyethylene film and presses the polyethylene film on the adsorption unit 48, when the electric push rod 455 drives the connecting plate 452 to continue moving, the tension spring 453 is gradually stretched, the cutting knife 46 cuts the polyethylene film, and the gluing unit 47 glues the polyethylene film; when the polyethylene film gluing is completed, the electric push rod 455 drives the connecting plate 452 to retract, and the tension spring 453 drives the pressing frame 451 to reset, which is beneficial to the flatness of the cut and prevents the polyethylene film from being stretched and torn during cutting.

[0047] Referring to Figure 9 As shown, the gluing unit 47 comprises a fixing frame 471, a compression frame 472, a reset spring 473, a glue storage box 474, a rotating rod 475, a sticking plate 476, a gear 477 and a rack plate 478, the fixing frame 471 is installed on the right side of the outer side of the pressing unit 45, the compression frame 472 is slidingly arranged in the middle of the fixing frame 471, the reset spring 473 is symmetrically installed between the inner side of the compression frame 472 and the fixing frame 471, the glue storage box 474 is installed in the middle of the inner side of the compression frame 472, the rotating rod 475 is installed on the both ends of the fixing frame 471 through bearings, the sticking plate 476 is installed in the middle of the rotating rod 475, the inner side of the sticking plate 476 is tightly attached to the glue storage box 474, the gear 477 is installed at the end of the rotating rod 475, and the rack plate 478 is installed at the end of the compression frame 472 and cooperates with the gear 477.

[0048] In actual use, when the compression frame 472 moves to the side of the adsorption unit 48 and contacts, the compression frame 472 moves to the inside of the fixed frame 471, the reset spring 473 is gradually compressed, the glue storage box 474 is separated from the sticking plate 476, when the compression frame 472 continues to move to the inside of the fixed frame 471, the gear 477 meshes with the rack plate 478, so that the rotating rod 475 drives the sticking plate 476 to overturn 180°, and then the sticking plate 476 contacts and glues the polyethylene film; after the gluing is completed, the electric push rod 455 drives the connecting plate 452 to reset, the reset spring 473 resets to drive the compression frame 472 to recover from the inside of the fixed frame 471, the gear 477 meshes reversely with the rack plate 478 to reset the sticking plate 476 to the initial position, and after resetting, the sticking plate 476 is tightly attached to the glue storage box 474, thereby realizing the function of automatically gluing the polyethylene film, facilitating the fixing of the end part of the polyethylene film after winding, and preventing the polyethylene film after winding from loosening.

[0049] It should be noted that when the reset spring 473 resets, the sticking plate 476 is first separated from the polyethylene film, and the end part of the compression frame 472 is still pressed against the polyethylene film to prevent the sticking plate 476 from pulling the polyethylene film.

[0050] Referring to Figure 9 As shown in the figure, the glue storage box 474 includes a glue storage capsule 4741 and an adsorption sponge 4742, the middle inside of the compression frame 472 is provided with a detachable glue storage capsule 4741, the inside of the glue storage capsule 4741 is filled with glue liquid, the outside of the glue storage capsule 4741 is provided with the adsorption sponge 4742, and the glue storage capsule 4741 is uniformly provided with liquid outlet holes in communication with the adsorption sponge 4742.

[0051] In actual use, when the sticking plate 476 moves to the inside of the compression frame 472, the sticking plate 476 extrudes the adsorption sponge 4742, the adsorption sponge 4742 deforms, so that the glue liquid in the adsorption sponge 4742 adheres to the sticking plate 476; when the sticking plate 476 moves to the outside of the compression frame 472, the adsorption sponge 4742 recovers, so that the glue liquid in the glue storage capsule 4741 is filled into the adsorption sponge 4742 through the liquid outlet holes.

[0052] It should be noted that when the glue liquid in the glue storage capsule 4741 is used up, the glue storage capsule 4741 can be detached for addition, and when the polyethylene film is cut, the glue storage capsule 4741 and the adsorption sponge 4742 need to be detached and cleaned to prevent the glue liquid in the adsorption sponge 4742 from solidifying.

[0053] Referring to Figure 10As shown, the adsorption unit 48 includes a trapezoidal plate 481 and an adsorption plate 482, the trapezoidal plate 481 is installed on the left side of the U-shaped frame 42, a rectangular slot is arranged in the middle of the trapezoidal plate 481, and the adsorption plate 482 is installed in the rectangular slot, and the telescopic unit 49 is installed on the right side of the trapezoidal plate 481.

[0054] In actual use, during the slitting process, the adsorption plate 482 is always in an open state, and the adsorption plate 482 adsorbs the polyethylene film to make the polyethylene film in a tension state, so that the polyethylene film can be prevented from wrinkling, which is beneficial to the winding of the polyethylene film, and can prevent the end of the cut polyethylene film from falling off. After replacing the winding core, the end of the polyethylene film on the adsorption plate 482 can be directly fixed on the winding core, which is convenient for workers to operate and reduces the labor intensity of workers.

[0055] Referring to Figure 10 As shown, the telescopic unit 49 includes a U-shaped plate 491, a connecting frame 492, a telescopic spring 493, a compression roller 494, and a touch switch 495, the U-shaped plate 491 is installed on the right side of the adsorption unit 48, the inner side of the U-shaped plate 491 is symmetrically provided with through grooves, the connecting frame 492 is slidably connected between the through grooves, the telescopic spring 493 is installed between the end of the connecting frame 492 and the U-shaped plate 491, the compression roller 494 is rotatably connected to the middle of the connecting frame 492, and the touch switch 495 is installed in the middle of the U-shaped plate 491 and is electrically connected with the compression unit 45 and the winding unit 43.

[0056] In actual use, when the winding roller 432 winds the polyethylene film, the wound polyethylene film presses the compression roller 494, the compression roller 494 drives the connecting frame 492 to move to the inner side of the U-shaped plate 491, and the telescopic spring 493 is gradually compressed. When the polyethylene film is wound to a certain thickness, the connecting frame 492 presses the touch switch 495, the touch switch 495 is opened, the winding unit 43 is stopped from rotating, and the compression unit 45 is used to compress the polyethylene film. Then the polyethylene film is cut and glued, realizing the functions of automatic compression, cutting and gluing, and improving the work efficiency.

[0057] The implementation principle of the embodiment is:

[0058] 1: Feeding and fixing, manually fixing the polyethylene film on the feeding roller 2 on the winding module 4 through the supporting roller 31, the cutting roller 32 and the guide roller 35, starting the driving motor one 34, and driving the cutting knife 33 to rotate at a constant speed through the cutting roller 32, so that the polyethylene film is cut to the required width.

[0059] 2: compression cut-off, the winding roller 432 stops rotating, the electric push rod 455 drives the connecting plate 452 to move to the side of the adsorption unit 48, the compression frame 451 moves synchronously with the connecting plate 452, the end of the compression frame 451 first contacts the polyethylene film and compresses the polyethylene film on the adsorption unit 48, when the electric push rod 455 continues to drive the connecting plate 452 to move, the tension spring 453 is gradually stretched, and the cutting knife 46 cuts off the polyethylene film.

[0060] 3: gluing and winding, when the wound polyethylene film reaches a certain thickness, the compression frame 472 moves to the side of the adsorption unit 48 and contacts, the compression frame 472 moves to the inside of the fixed frame 471, the reset spring 473 is gradually compressed, the glue storage tank 474 is separated from the sticking plate 476, when the compression frame 472 continues to move to the inside of the fixed frame 471, the gear 477 engages with the rack plate 478, so that the rotating rod 475 drives the sticking plate 476 to flip 180°, then the sticking plate 476 contacts the polyethylene film and glues the polyethylene film, and then the winding unit 43 winds and fixes the end of the polyethylene film.

[0061] The embodiments of the specific embodiment are the preferred embodiments of the application, and are not limited to the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A polyethylene film automatic slitting device, comprising a housing (1), a feed roller (2), a cutting module (3) and a winding module (4), characterized in that, The shell (1) is a U-shaped structure, the shell (1) is provided with a feeding roller (2) on the left side, a cutting module (3) is installed in the middle of the shell (1), and a winding module (4) is installed on the right side of the shell (1). The winding module (4) comprises a mounting plate (41), a U-shaped frame (42), a winding unit (43), a mounting frame (44), a pressing unit (45), a cutting knife (46), a gluing unit (47), a suction unit (48) and a telescopic unit (49), the mounting plate (41) is symmetrically installed on the right side of the middle of the shell (1), the U-shaped frame (42) is uniformly installed on the left side of the mounting plate (41), the winding unit (43) is installed in the middle of the U-shaped frame (42), the mounting frame (44) is installed on the left side of the middle of the U-shaped frame (42), the pressing unit (45) is installed in the middle of the mounting frame (44), the cutting knife (46) is installed on the left side of the outer side of the pressing unit (45), the gluing unit (47) is installed on the right side of the outer side of the pressing unit (45), the suction unit (48) is installed on the left side of the U-shaped frame (42), and the telescopic unit (49) is installed on the right side of the suction unit (48). The gluing unit (47) comprises a fixing frame (471), a compression frame (472), a reset spring (473), a glue storage box (474), a rotating rod (475), a sticking plate (476), a gear (477) and a rack plate (478), the fixing frame (471) is installed on the right side of the outer side of the pressing unit (45), the compression frame (472) is slidably arranged in the middle of the fixing frame (471), the reset spring (473) is symmetrically installed between the inner side of the compression frame (472) and the fixing frame (471), the glue storage box (474) is installed in the middle of the inner side of the compression frame (472), the rotating rod (475) is installed at both ends of the fixing frame (471) through bearings, the sticking plate (476) is installed in the middle of the rotating rod (475), the inner side of the sticking plate (476) is tightly attached to the glue storage box (474), the gear (477) is installed at the end of the rotating rod (475), and the rack plate (478) is installed at the end of the compression frame (472).

2. The polyethylene film automatic slitting device according to claim 1, characterized in that: The cutting module (3) comprises a supporting roller (31), a cutting roller (32), a cutting knife (33), a driving motor (34) and a guide roller (35), the supporting roller (31) is symmetrically installed on the upper end of the middle of the shell (1) through bearings, the cutting roller (32) is arranged above the middle of the two supporting rollers (31), the cutting roller (32) is installed on the shell (1) through bearings at the end, the cutting knife (33) is uniformly installed on the cutting roller (32), the driving motor (34) is installed on the front side of the shell (1) through a motor base, the output shaft of the driving motor (34) penetrates the shell (1) and is connected with the cutting roller (32), and the guide roller (35) is symmetrically installed on the right middle of the shell (1).

3. The automatic slitting device for polyethylene film according to claim 1, characterized in that: The winding unit (43) comprises a clamping joint (431), a winding roller (432), a clamping assembly (433), a rotating shaft (434) and a second driving motor (435), the middle part of the U-shaped frame (42) is symmetrically provided with the clamping joint (431) through bearings, the inner side of the clamping joint (431) is provided with a clamping groove, the winding roller (432) is installed between the clamping joints (431), the two ends of the winding roller (432) are symmetrically provided with the clamping assembly (433), the clamping assembly (433) is located in the clamping groove, the rotating shaft (434) is installed between the clamping joint (431) and the shell (1), the second driving motor (435) is installed on the shell (1) through a motor base, and the output shaft of the second driving motor (435) penetrates the shell (1) and is connected with the rotating shaft (434).

4. The automatic slitting device for polyethylene film according to claim 3, characterized in that: The clamping assembly (433) comprises a clamping block (4331), a sliding block (4332) and a compression spring (4333), the two ends of the winding roller (432) are symmetrically provided with the clamping block (4331), the middle part of the clamping block (4331) is symmetrically provided with a sliding groove, the sliding groove is connected with the sliding block (4332) in a sliding mode, the middle part of the clamping groove is symmetrically provided with a groove, the sliding block (4332) is matched with the groove, and the compression spring (4333) is installed between the end of the sliding block (4332) and the sliding groove.

5. The automatic slitting device for polyethylene film according to claim 1, characterized in that: The pressing unit (45) comprises a pressing frame (451), a connecting plate (452), a tension spring (453), a fixed plate (454) and an electric push rod (455), the pressing frame (451) is slidably connected in the mounting frame (44), the connecting plate (452) is slidably connected in the pressing frame (451), the tension springs (453) are uniformly installed between the inner side of the connecting plate (452) and the pressing frame (451), the fixed plate (454) is arranged above the mounting frame (44), the end of the fixed plate (454) is installed on the U-shaped frame (42), the electric push rod (455) is installed on the fixed plate (454), and the top end of the electric push rod (455) penetrates the mounting frame (44) and the pressing frame (451) and is connected with the connecting plate (452).

6. The automatic slitting device for polyethylene film according to claim 1, characterized in that: The glue storage box (474) comprises a glue storage capsule (4741) and an adsorption sponge (4742), the detachable glue storage capsule (4741) is installed on the inner side of the middle part of the compression frame (472), the glue storage capsule (4741) is filled with glue liquid, the adsorption sponge (4742) is installed on the outer side of the glue storage capsule (4741), and the glue storage capsule (4741) is uniformly provided with liquid outlet holes in communication with the adsorption sponge (4742).

7. The automatic slitting device for polyethylene film according to claim 1, characterized in that: The adsorption unit (48) comprises a trapezoidal plate (481) and an adsorption plate (482), the trapezoidal plate (481) is installed on the left side of the U-shaped frame (42), the middle part of the trapezoidal plate (481) is provided with a rectangular groove, the adsorption plate (482) is installed in the rectangular groove, and the telescopic unit (49) is installed on the right side of the trapezoidal plate (481).

8. The automatic slitting device for polyethylene film according to claim 1, characterized in that: The telescopic unit (49) comprises a U-shaped plate (491), a connecting frame (492), telescopic springs (493), a pressing roller (494) and a touch switch (495), the U-shaped plate (491) is mounted on the right side of the adsorption unit (48), symmetrically arranged through grooves are arranged on the inner side of the U-shaped plate (491), the connecting frame (492) is slidably connected between the through grooves, the telescopic springs (493) are mounted between the end of the connecting frame (492) and the U-shaped plate (491), the pressing roller (494) is rotatably connected to the middle of the connecting frame (492), the touch switch (495) is mounted in the middle of the U-shaped plate (491), and the touch switch (495) is electrically connected with the pressing unit (45) and the winding unit (43) respectively.

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