A composite forming device of a matte PE film and an opalescent PE film

Abstract

The present application relates to the technical field of composite PE film processing, in particular to a composite forming device for matte PE film and milky white PE film, comprising a horizontal conveying frame, upper and lower winding rollers symmetrically arranged on the front end of the horizontal conveying frame, and a glue roller, which is arranged in parallel on the back side of the upper winding roller and has a glue storage pattern on its surface. The device drives all the cleaning scrapers connected thereto to move synchronously by synchronous traction belts, and the symmetrically arranged cleaning scrapers clamp the PE film after glue coating and pressing through flexible scrapers. When the flexible scrapers are translated outward along the circulating conveying guide rail, the edges of the PE film after glue coating and pressing are scraped to transfer the overflowed glue to the surface of the flexible scrapers, so as to avoid the overflowed glue from adhering to the non-adhesive surface to cause the edge of the composite film to be bonded, and prevent the overflowed glue from adhering to the subsequent pressing roller, which is conducive to improving the processing and production quality of the composite PE film.

Description

Technical Field

[0001] This invention relates to the field of composite PE film processing technology, and in particular to a composite molding apparatus for matte PE film and milky white PE film. Background Technology

[0002] Currently, there are many types of packaging films on the market, including matte PE film and milky white PE film. Matte PE film is a surface-treated polyethylene film with good printability, abrasion resistance, and environmental friendliness. Due to its non-reflective surface, this film is widely used in food packaging, cosmetic packaging, and other fields. Milky white PE film refers to a polyethylene film with a certain degree of light-blocking properties. It is usually achieved by adding white masterbatch to achieve the milky white effect. Milky white PE film has good light-blocking, moisture-proof, and cold-resistant properties, making it suitable for packaging applications that require light-blocking protection. Composite films, which combine the two types of PE films, integrate the characteristics of both and have even higher strength.

[0003] Existing laminating equipment typically lays out matte PE film and milky white PE film flat beforehand, applies an appropriate amount of adhesive to their bonding surfaces, and then presses the two PE films together to bond them. However, during the process of applying adhesive and pressing, the adhesive at the edges of the PE film is prone to overflowing under pressure, staining the non-bonded surfaces. This not only affects the aesthetics of the laminated film but may also cause the edges of the laminated film to stick together, thus reducing product quality. Furthermore, the overflowing adhesive can also stain the subsequent winding rollers, causing pollution to the production line, affecting subsequent processing work, and increasing the workload of cleaning and maintenance. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide a composite molding device for matte PE film and milky white PE film, so as to solve the problem that in the current composite molding equipment for matte PE film and milky white PE film, during the process of applying glue and pressing, the glue at the edge of the PE film is easily overflowed by pressure, which stains the non-adhesive surface, affects the aesthetics of the composite film, and easily leads to adhesion at the edge of the composite film, thereby reducing product quality.

[0005] To achieve the above objectives, the present invention provides a composite molding apparatus for matte PE film and milky white PE film, comprising a horizontal conveyor frame, wherein an upper winding roller and a lower winding roller are symmetrically arranged at the front end of the horizontal conveyor frame, and further comprising:

[0006] A glue-applying roller is arranged parallel to the rear side of the upper winding roller. The surface of the glue-applying roller is provided with a glue storage mesh. A glue storage trough is provided below the glue-applying roller. A glue-applying motor is connected to the shaft end of the glue-applying roller.

[0007] A pair of pressing conveyor rollers are arranged on the rear side of the coating roller, and the two pressing conveyor rollers are arranged symmetrically and parallel to each other.

[0008] A circulating conveyor frame is arranged parallel to the rear side of the pressing conveyor roller. Multiple pairs of circulating conveyor frames are arranged on the rear side of the pressing conveyor roller. Each pair of circulating conveyor frames is arranged symmetrically from left to right. Two circulating conveyor guide rails are arranged symmetrically from top to bottom in the middle of each circulating conveyor frame. A synchronous traction belt is arranged on the inner side of the circulating conveyor guide rail. A traction conveyor wheel is arranged on the inner side of the synchronous traction belt. A traction motor is connected to the shaft end of the traction conveyor wheel.

[0009] A connecting slide is slidably connected in the middle of the circulating conveying guide rail. Multiple connecting slides are evenly connected around the middle of the circulating conveying guide rail. The connecting slides on the circulating conveying guide rail, which are symmetrically arranged vertically, are arranged one-to-one with each other. A cleaning scraper is connected to the adjacent side of the connecting slide. A flexible scraper is connected to the adjacent side of the cleaning scraper. Flexible scraper strips are symmetrically arranged at both ends of the flexible scraper strip.

[0010] A de-adhesive scraper is connected to the outer end of the circulating conveyor frame. A de-adhesive fitting groove is provided in the middle of the de-adhesive scraper. The de-adhesive fitting groove and the flexible scraper are correspondingly arranged and their sizes are matched.

[0011] A composite take-up roller is located on the rear side of the circulating conveyor frame.

[0012] Furthermore, the traction motor drives the synchronous traction belt to rotate cyclically along the circulating conveyor rail via the traction conveyor wheel. The synchronous traction belt drives all the connecting slides connected to it to move synchronously along the circulating conveyor rail, thereby driving the cleaning scraper to move synchronously. When the symmetrically arranged cleaning scraper passes through the glued and pressed PE film, it is clamped by the flexible scraper. When the flexible scraper moves outward along the circulating conveyor rail, it passes through the edge of the glued and pressed PE film to scrape off the overflowing glue and transfer it to the surface of the flexible scraper.

[0013] Furthermore, a vertical connecting sleeve is provided in the middle of the connecting slide, and a vertical connecting rod is provided in the middle of the cleaning scraper. The cleaning scraper is slidably connected to the vertical connecting sleeve through the vertical connecting rod. A pressure plate spring is provided in the middle of the vertical connecting rod, and the pressure plate spring presses the cleaning scraper to slide closer to each other.

[0014] Furthermore, a magnetic traction block is connected to the outer end of the vertical connecting rod, and a traction electromagnet is connected to the outer end of the vertical connecting sleeve. When the traction electromagnet is energized, it generates a magnetic force to attract the magnetic traction block, thereby causing the cleaning scraper to slide and separate from each other through the magnetic traction block and the vertical connecting rod.

[0015] Furthermore, a rotating cleaning brush is provided on the front side of the adhesive removal groove, and a central drive shaft is provided in the middle of the rotating cleaning brush. The rotating cleaning brush is rotatably connected to the adhesive removal scraper through the central drive shaft. A cleaning motor is connected to the shaft end of the central drive shaft. A residual adhesive collection box is provided covering the side of the rotating cleaning brush away from the adhesive removal groove. A high-pressure air supply pipe is provided in the middle of the residual adhesive collection box. Multiple high-pressure air nozzles are evenly connected in the middle of the high-pressure air supply pipe, and all the high-pressure air nozzles are facing the rotating cleaning brush.

[0016] Furthermore, a vertical conveying cylinder is provided at the center of the glue storage tank, and a glue delivery slot is horizontally provided at the top of the vertical conveying cylinder. The glue delivery slot is parallel to the bottom of the glue coating roller. A booster pump cylinder is connected to the bottom of the vertical conveying cylinder, and a glue inlet is connected to the bottom of the booster pump cylinder. A pumping impeller is rotatably provided inside the booster pump cylinder, and a pumping motor is connected to the shaft end of the pumping impeller.

[0017] Furthermore, a horizontal adjustment groove is provided in the middle of the glue delivery groove, and adjustment sealing plates are symmetrically arranged on the left and right sides of the horizontal adjustment groove. The adjustment sealing plates are horizontally slidably connected to the glue delivery groove through the horizontal adjustment groove. The dimensions of the adjustment sealing plates and the glue delivery groove are mutually matched. An adjustment screw sleeve is connected to the outer end of the adjustment sealing plate, and an adjustment screw is nested inside the adjustment screw sleeve. An adjustment motor is connected in the middle of the adjustment screw.

[0018] Furthermore, a synchronous drive shaft is provided at the center of the pressing conveyor roller, a synchronous gear is connected to one end of the synchronous drive shaft, and a pressing motor is connected to the other end of the synchronous drive shaft. The pressing motor drives the pressing conveyor rollers arranged symmetrically on the upper and lower sides to rotate synchronously in opposite directions through the synchronous gear and the synchronous drive shaft.

[0019] Furthermore, the pressing conveyor roller is composed of multiple unit pressing rollers arranged horizontally along the synchronous drive shaft. A central bushing is provided at the center of each unit pressing roller, and the unit pressing roller is slidably connected to the synchronous drive shaft through the central bushing. A locking connecting sleeve is provided in the middle of the central bushing. Multiple drive connecting grooves are evenly arranged horizontally in the middle of the synchronous drive shaft. The drive connecting grooves are corresponding to the unit pressing rollers. A magnetic locking pin is slidably fitted in the middle of the locking connecting sleeve. A locking spring is provided in the middle of the magnetic locking pin. The magnetic locking pin is corresponding to the drive connecting groove and their dimensions are matched.

[0020] Furthermore, a horizontal guide frame is arranged parallel to the outer side of the pressing conveyor roller, and a traction adjustment frame is symmetrically slidably connected in the middle of the horizontal guide frame. Multiple fitting connection slots are evenly arranged in the middle of the traction adjustment frame along the horizontal direction. A connecting electromagnet is arranged in the middle of the fitting connection slot. A sliding adjustment sleeve is arranged in the middle of the unit pressing wheel. The inner and outer ends of the locking connection sleeve are respectively connected to the central shaft sleeve and the sliding adjustment sleeve. The traction adjustment frame is slidably connected to the unit pressing wheel through the sliding adjustment sleeve. When the connecting electromagnet is energized, it generates magnetic force to attract the magnetic locking pin to slide outward from the driving connection slot and simultaneously embed into the corresponding fitting connection slot. A translation screw sleeve is connected to the outer end of the traction adjustment frame. A translation screw is nested inside the translation screw sleeve. A translation motor is connected to the shaft end of the translation screw.

[0021] The beneficial effects of this invention are as follows: As can be seen from the above description, the composite molding device for matte PE film and milky white PE film provided by this invention winds matte PE film and milky white PE film respectively on an upper winding roller and a lower winding roller symmetrically arranged parallel on a horizontal conveyor frame. Then, when the upper PE film is conveyed horizontally forward, it is coated with adhesive by an adhesive roller and then bonded to the lower PE film and conveyed to the pressing conveyor roller. The upper and lower symmetrical pressing conveyor rollers rotate to squeeze and bond the film, and then it is conveyed to the circulating conveyor frame. The synchronous traction belt drives all the cleaning scrapers connected to it to move synchronously. When the symmetrically arranged cleaning scrapers pass over the glued and pressed PE film, they are clamped by flexible scraper strips. As the flexible scraper moves outward along the circulating conveyor rail, it scrapes off excess glue from the edge of the glued and pressed PE film, transferring it to the surface of the flexible scraper. Then, the cleaning scraper drives the flexible scraper to the glue removal scraper, where the glue removal scraper removes the glue transferred to the surface of the flexible scraper. The cleaned flexible scraper then circulates and conveys the glued and pressed PE film to complete the continuous cleaning of the composite PE film. This prevents glue from overflowing from the edge of the PE film and contaminating the non-adhesive surface, thus avoiding adhesion at the edge of the composite film. It also prevents excess glue from contaminating the subsequent pressure rollers, which helps improve the processing quality of the composite PE film. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a front view of an embodiment of the present invention.

[0024] Figure 2 This is a top view of the structure according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the rear partial structure of the horizontal conveyor frame according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the circulating conveyor frame according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the cleaning scraper according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the adhesive removal scraper according to an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the pressing conveyor roller according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of the structure of the unit pressing wheel according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the coating roller according to an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the structure of the vertical conveying cylinder according to an embodiment of the present invention.

[0033] The diagram is marked as follows:

[0034] 1. Horizontal conveyor frame; 101. Upper winding roller; 102. Lower winding roller; 103. Composite take-up roller; 104. Conveyor motor; 2. Glue coating roller; 201. Glue storage mesh; 202. Glue coating motor; 203. Glue storage tank; 204. Vertical conveyor cylinder; 205. Glue delivery trough opening; 206. Booster pump cylinder; 207. Glue inlet; 208. Pump impeller; 209. Pump motor; 3. Horizontal adjusting trough; 30 1. Adjusting sealing plate; 302. Adjusting screw sleeve; 303. Adjusting screw; 304. Adjusting motor; 4. Pressing conveyor roller; 401. Synchronous drive shaft; 402. Drive connecting groove; 403. Synchronous gear; 404. Pressing motor; 5. Unit pressing wheel; 501. Central bushing; 502. Locking connecting sleeve; 503. Magnetic locking pin; 504. Locking spring; 505. Sliding adjusting sleeve; 6. Horizontal guide frame; 601. Translation screw; 602. Translation motor; 603. Traction adjusting frame; 604. Fitting connecting groove; 605. Connecting electromagnet; 606. Translation screw sleeve; 7. Circulating conveyor frame; 701. Circulating conveyor guide rail; 702. Horizontal guide rail; 703. Arc guide rail; 704. Synchronous traction belt; 705. Traction conveyor wheel; 706. Traction motor; 8. Connecting slide; 801. Vertical connecting sleeve 802. Pressure plate spring; 803. Traction electromagnet; 804. Cleaning scraper; 805. Flexible scraper; 806. Guide slope; 807. Vertical connecting rod; 808. Magnetic traction block; 9. Adhesive removal scraper; 901. Adhesive removal fitting groove; 902. Rotary cleaning brush; 903. Central drive shaft; 904. Cleaning motor; 905. High-pressure air supply pipe; 906. High-pressure air nozzle; 907. Residual adhesive collection box. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0036] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, a composite molding apparatus for matte PE film and milky white PE film includes a horizontal conveyor frame 1, with an upper winding roller 101 and a lower winding roller 102 symmetrically arranged at the front end of the horizontal conveyor frame 1, and further includes:

[0038] The glue-applying roller 2 is arranged parallel to the rear side of the upper winding roller 101. The surface of the glue-applying roller 2 is provided with a glue storage mesh 201. A glue storage trough 203 is provided below the glue-applying roller 2. A glue-applying motor 202 is connected to the shaft end of the glue-applying roller 2.

[0039] A pair of pressing conveyor rollers 4 are located behind the glue coating roller 2, and the two pressing conveyor rollers 4 are arranged symmetrically and parallelly.

[0040] A circulating conveyor frame 7 is arranged parallel to the rear side of the pressing conveyor roller 4. Multiple pairs of circulating conveyor frames 7 are arranged on the rear side of the pressing conveyor roller 4. Each pair of circulating conveyor frames 7 is arranged symmetrically from left to right. Two circulating conveyor guide rails 701 are symmetrically arranged vertically in the middle of each circulating conveyor frame 7. A synchronous traction belt 704 is arranged on the inner side of the circulating conveyor guide rail 701. A traction conveyor wheel 705 is arranged on the inner side of the synchronous traction belt 704. A traction motor 706 is connected to the shaft end of the traction conveyor wheel 705.

[0041] A connecting slide 8 is slidably connected in the middle of the circulating conveying guide rail 701. Multiple connecting slides 8 are evenly connected around the middle of the circulating conveying guide rail 701. The connecting slides 8 on the circulating conveying guide rail 701, which are symmetrically arranged vertically, are arranged one to one with each other. A cleaning scraper 804 is connected to the adjacent side of the connecting slide 8. A flexible scraper 805 is connected to the adjacent side of the cleaning scraper 804. Flexible scraper 805s are symmetrically arranged at the left and right ends of the flexible scraper 805.

[0042] The adhesive removal scraper 9 is connected to the outer end of the circulating conveyor frame 7. The adhesive removal scraper 9 has an adhesive removal groove 901 in the middle. The adhesive removal groove 901 and the flexible scraper 805 are correspondingly arranged and their dimensions are matched.

[0043] The composite take-up roller 103 is located on the rear side of the circulating conveyor frame 7.

[0044] In this embodiment, the device winds matte PE film and milky white PE film onto an upper winding roller 101 and a lower winding roller 102 symmetrically and parallelly arranged on a horizontal conveyor frame 1, respectively. A conveyor motor 104 is connected between the upper winding roller 101, the lower winding roller 102, and the composite winding roller 103 to drive and control the rotation of the upper winding roller 101, the lower winding roller 102, and the composite winding roller 103, thus releasing and winding the PE film. When the upper PE film is conveyed horizontally forward, it passes through the coating roller 2. The coating motor 202 drives the coating roller 2 to rotate. When the lower side of the coating roller 2 passes through the glue storage tank 203, it is immersed in glue, so that the glue is absorbed through the glue storage mesh 201 on its surface, and then coated onto the upper PE film as it rotates. The bottom PE film is coated with adhesive and then bonded to the bottom PE film. It is then conveyed to the pressing conveyor roller 4, where it is pressed and bonded by the rotation of the symmetrical pressing conveyor rollers 4. After that, it is conveyed to the circulating conveyor frame 7. The traction motor 706 drives the synchronous traction belt 704 to rotate along the circulating conveyor guide rail 701 through the traction conveyor wheel 705. The synchronous traction belt 704 drives all the connecting slides 8 connected to it to move synchronously along the circulating conveyor guide rail 701, which in turn drives the cleaning scraper 804 to move synchronously. When the symmetrically arranged cleaning scraper 804 passes over the glued and pressed PE film, it is clamped by the flexible scraper 805. At the same time, the outer end of the flexible scraper 805 is provided with a guide slope 806 to facilitate the embedding of the PE film into the symmetrical flexible scraper. Between the scraper strips 805, the symmetrical circulating conveyor frames 7 on both sides are set at a certain angle to the horizontal conveyor frame 1 and the PE film. Since the circulating conveyor guide rail 701 is composed of two parallel horizontal guide rails 702 and an arc-shaped guide rail 703 connecting the two ends of the two horizontal guide rails 702, the flexible scraper strip 805 first moves from the edge of the PE film to the center of the PE film. After turning through the inner arc-shaped guide rail 703, it moves from the center of the PE film to the edge of the PE film. When it moves to the edge of the PE film, the horizontal conveying of the PE film and the movement of the flexible scraper strip 805 work together to scrape off the glue overflowing from the edge of the PE film after gluing and pressing, and simultaneously transfer it to the surface of the flexible scraper strip 805. The rear side of the pressing conveyor roller 4 is arranged... The column is equipped with multiple pairs of circulating conveyor frames 7. The cleaning scrapers 804 on the front and rear circulating conveyor frames 7 are alternately arranged as they move, so that the edges of the PE film can be completely covered by multiple cleaning scrapers 804. The flexible scraper 805 has a Teflon coating on its surface, which has low adhesion to glue and reduces friction with the PE film. Therefore, the cleaning scraper 804 can drive the flexible scraper 805 to the adhesive removal scraper 9. The flexible scraper 805 passes through the adhesive removal interlocking groove 901, where its sides and bottom surfaces are scraped off. The adhesive transferred to the surface of the flexible scraper 805 is transferred to the adhesive removal scraper 9. Then, the cleaned flexible scraper 805 can be further circulated and conveyed to the PE film that has been coated and pressed.This continuous cleaning process of the composite PE film prevents adhesive from overflowing from the edges and staining non-adhesive surfaces, thus avoiding adhesion at the film edges. It also prevents excess adhesive from contaminating subsequent pressure rollers, thereby improving the processing quality of the composite PE film.

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, preferably, the device drives the synchronous traction belt 704 to rotate cyclically along the circulating conveyor rail 701 via the traction conveyor wheel 705 through the traction motor 706. The synchronous traction belt 704 drives all the connecting slides 8 connected to it to move synchronously along the circulating conveyor rail 701, thereby driving the cleaning scrapers 804 to move synchronously. When the symmetrically arranged cleaning scrapers 804 pass through the glued and pressed PE film, they are clamped by the flexible scraper strips 805. The flexible scraper strips 805 move outward along the circulating conveyor rail 701. During horizontal conveying, the excess adhesive on the edge of the PE film, after being coated and pressed, is scraped off and transferred to the surface of the flexible scraper 805 to complete the cleaning of the excess adhesive on the composite PE film. Simultaneously, a vertical connecting sleeve 801 is provided in the middle of the connecting slide 8, and a vertical connecting rod 807 is connected in the middle of the cleaning scraper 804. The cleaning scraper 804 is slidably connected to the vertical connecting sleeve 801 via the vertical connecting rod 807. A pressure plate spring 802 is provided in the middle of the vertical connecting rod 807, and the pressure plate spring 802 presses the cleaning scraper 804. 04. The two parts slide closer together, making it easier for the cleaning scraper 804 to clamp the PE film and squeeze out excess glue from the composite PE film. Simultaneously, a magnetic traction block 808 is connected to the outer end of the vertical connecting rod 807, and a traction electromagnet 803 is connected to the outer end of the vertical connecting sleeve 801. Therefore, when the cleaning scraper 804 moves to the outside of the PE film for cleaning, the traction electromagnet 803 is energized, generating a magnetic force to attract the magnetic traction block 808, and then the magnetic traction block 808 and the vertical connecting... Rod 807 drives the cleaning scraper 804 to slide and separate, facilitating cleaning. When the cleaning scraper 804 moves from the center of the PE film to the edge after turning through the inner arc guide rail 703, the traction electromagnet 803 is simultaneously de-energized and released. At this time, the pressure plate spring 802 presses the cleaning scraper 804 to slide and approach each other. The cleaning scraper 804 clamps the PE film to squeeze and scrape off excess glue in the composite PE film, making the overall processing more reliable and avoiding damage to the PE film.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown, preferably, when the flexible scraper 805 passes through the adhesive removal groove 901, it scrapes off the sides and bottom of the flexible scraper 805. The adhesive transferred to the surface of the flexible scraper 805 is scraped off and transferred to the adhesive removal scraper 9. A rotating cleaning brush 902 is provided on the front side of the adhesive removal groove 901. A central drive shaft 903 is provided in the middle of the rotating cleaning brush 902. The rotating cleaning brush 902 is rotatably connected to the adhesive removal scraper 9 through the central drive shaft 903. A cleaning motor 904 is connected to the shaft end of the central drive shaft 903. Thus, the cleaning motor 904 can drive the rotating cleaning brush 902 to rotate, so as to clean the surfaces of the flexible scraper 805 and the adhesive removal scraper 9, and move the adhesive on their surfaces to the rotating cleaning brush 902. On the 02, a residual adhesive collection box 907 is provided covering the side of the rotating cleaning brush 902 away from the adhesive removal groove 901. A high-pressure air supply pipe 905 is provided in the middle of the residual adhesive collection box 907. Multiple high-pressure air nozzles 906 are evenly connected in the middle of the high-pressure air supply pipe 905. The high-pressure air nozzles 906 are all facing the rotating cleaning brush 902. So when the rotating cleaning brush 902 is contaminated with adhesive and rotates to the side of the residual adhesive collection box 907, the high-pressure air nozzles 906 can spray high-pressure gas to blow off and clean the adhesive on the rotating cleaning brush 902. This avoids excessive adhesive on the adhesive removal scraper 9 and the rotating cleaning brush 902, which helps to further improve the cleaning effect of the adhesive removal scraper 9, and thus improves the cleaning effect of adhesive overflow from the edge of the composite PE film.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, preferably, a vertical conveying cylinder 204 is provided at the center of the glue storage tank 203 of the device. A glue delivery slot 205 is horizontally provided at the top of the vertical conveying cylinder 204. The glue delivery slot 205 is arranged parallel to the bottom of the glue coating roller 2. A booster pump cylinder 206 is connected to the bottom of the vertical conveying cylinder 204. A glue inlet 207 is connected to the bottom of the booster pump cylinder 206. A pumping impeller 208 is rotatably provided inside the booster pump cylinder 206. The shaft end of the pumping impeller 208 is connected to... A pumping motor 209 is installed, which drives the pumping impeller 208 to rotate, drawing the glue through the glue inlet 207 into the booster pump cylinder 206. The glue is then delivered to the booster pump cylinder 206 and overflows from the glue delivery trough 205, forming glue crests. When the coating roller 2 passes under it, the glue is picked up by the glue storage mesh 201 on its surface, thus ensuring continuous glue circulation. This prevents the glue surface from forming a film that affects the glue pick-up on the coating roller 2, improving glue efficiency. The coating effect and processing quality of the PE film are improved. A horizontal adjustment groove 3 is provided in the middle of the glue dispensing slot 205. Adjustable sealing plates 301 are symmetrically arranged on both sides of the horizontal adjustment groove 3. The adjusting sealing plates 301 are horizontally slidably connected to the glue dispensing slot 205 through the horizontal adjustment groove 3. The dimensions of the adjusting sealing plates 301 and the glue dispensing slot 205 are matched. An adjusting screw sleeve 302 is connected to the outer end of the adjusting sealing plate 301. An adjusting screw 303 is nested inside the adjusting screw sleeve 302. An adjusting motor 304 is connected in the middle of the adjusting screw 303. The adjusting motor 304 can drive the symmetrically arranged adjusting sealing plates 301 to synchronously move in opposite directions through the adjusting screw 303 and adjusting screw sleeve 302, thereby adjusting the length of the glue dispensing slot 205 covered by the adjusting sealing plates 301, and thus adjusting the overall width of the glue dispensing slot 205. This allows for control over the width of the glue applied, enabling the processing of PE films of different widths according to requirements, making it more flexible and convenient to use.

[0048] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, preferably, a synchronous drive shaft 401 is provided at the center of the pressing and conveying roller 4 of the device. A synchronous gear 403 is connected to one end of the synchronous drive shaft 401, and a pressing motor 404 is connected to the other end of the synchronous drive shaft 401. The pressing motor 404 drives the pressing and conveying rollers 4, which are symmetrically arranged vertically, to rotate synchronously in opposite directions through the synchronous gear 403 and the synchronous drive shaft 401, so as to clamp and convey the PE film. The pressing and conveying roller 4 is composed of multiple unit pressing rollers 5. The multiple unit pressing rollers 5 are arranged horizontally along the synchronous drive shaft 401. A central bushing 501 is provided at the center of the unit pressing roller 5. The unit pressing roller 5 is slidably connected to the synchronous drive shaft 401 through the central bushing 501. A locking connecting sleeve 502 is provided in the middle of the central bushing 501. Multiple drive connecting grooves 402 are evenly arranged horizontally in the middle of the synchronous drive shaft 401. The drive connecting grooves 402 are corresponding to the unit pressing rollers 5. A magnetic locking sleeve 502 is slidably fitted in the middle of the locking connecting sleeve 502. A locking pin 503 and a locking spring 504 are provided in the middle of the magnetic locking pin 503. The magnetic locking pin 503 and the drive connecting groove 402 are correspondingly arranged and their dimensions are matched. When the magnetic locking pin 503 is embedded in the drive connecting groove 402, the synchronous drive shaft 401 can drive the corresponding unit pressing roller 5 to rotate. When the magnetic locking pin 503 is disengaged from the drive connecting groove 402, the corresponding unit pressing roller 5 can slide along the synchronous drive shaft 401 to adjust its position. Thus, different numbers of unit pressing rollers 5 can be adjusted and combined according to needs to form pressing conveyor rollers 4 of different widths to process PE films of the required width. This makes it more flexible and convenient to use. It can also make the width of the pressing conveyor roller 4 smaller than the PE film to avoid the roller pressing the edge of the PE film and causing glue to overflow. Subsequently, the edge of the PE film can be squeezed and the glue can be treated by the cleaning scraper 804 and the flexible scraper 805, which can prevent glue from sticking to the pressing conveyor roller 4 and affecting the subsequent processing and production of PE film.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, preferably, a horizontal guide frame 6 is arranged parallel to the outer side of the pressing conveyor roller 4 of the device. A traction adjustment frame 603 is symmetrically slidably connected in the middle of the horizontal guide frame 6. Multiple fitting slots 604 are evenly arranged in the middle of the traction adjustment frame 603 along the horizontal direction. A connecting electromagnet 605 is arranged in the middle of the fitting slot 604. A sliding adjustment sleeve 505 is arranged in the middle of the unit pressing roller 5. The inner and outer ends of the locking connection sleeve 502 are respectively connected to the central shaft sleeve 501 and the sliding adjustment sleeve 505. The traction adjustment frame 603 is slidably connected to the unit pressing roller 5 through the sliding adjustment sleeve 505. When the connecting electromagnet 605 is energized, it generates magnetic force to attract the magnetic locking pin 503 to slide outward from the driving connection slot 402 and simultaneously insert into the corresponding fitting slot 604, thereby controlling the... By connecting electromagnets 605 according to their position and quantity, the corresponding unit pressing rollers 5 can be separated from the synchronous drive shaft 401 and simultaneously connected to the traction adjustment frame 603. The outer end of the traction adjustment frame 603 is connected to a translation screw sleeve 606, and the inner side of the translation screw sleeve 606 is nested with a translation screw 601. The shaft end of the translation screw 601 is connected to a translation motor 602. The translation motor 602 can drive the traction adjustment frame 603 to move through the translation screw 601 and the translation screw sleeve 606, thereby enabling the traction adjustment frame 603 to drive the unit pressing rollers 5 connected to it to move synchronously to adjust their positions, so as to realize the automatic adjustment and combination of the unit pressing rollers 5. This facilitates the automatic formation of pressing and conveying rollers 4 of different widths to process PE films of the required width, making it more flexible and convenient to use.

[0050] In use, matte PE film and milky white PE film are wound onto the upper winding roller 101 and lower winding roller 102, which are symmetrically arranged parallel to each other on the horizontal conveyor frame 1, respectively. Then, the upper winding roller 101, lower winding roller 102 and composite take-up roller 103 are driven and controlled by the conveyor motor 104 to release and rewind the PE film. When the upper PE film is conveyed horizontally forward, it passes through the coating roller 2. The pump motor 209 drives the pump impeller 208 to rotate, so as to draw the glue into the booster pump cylinder 206 through the glue inlet 207. Then, it is conveyed to the booster pump cylinder 206 and overflows from the glue delivery slot 205, forming glue crests. When the coating roller 2 passes under it, it picks up the glue through the glue storage mesh 201 on its surface, and then follows the rotation to coat the bottom of the upper PE film. The PE film is then coated with adhesive on the upper side and bonded to the lower side, conveyed to the pressing conveyor roller 4. The pressing motor 404 drives the symmetrically arranged pressing conveyor rollers 4 to rotate synchronously in opposite directions via the synchronous gear 403 and the synchronous drive shaft 401. The rotation of the symmetrically arranged pressing conveyor rollers 4 compresses and bonds the two PE films, which are then conveyed to the circulating conveyor frame 7. The traction motor 706 drives the synchronous traction belt 704 to rotate cyclically along the circulating conveyor guide rail 701 via the traction conveyor wheel 705. The synchronous traction belt 704 drives all the connecting slides 8 connected to it to move synchronously along the circulating conveyor guide rail 701, thereby driving the cleaning scraper 804 to move synchronously. The flexible scraper 805 first moves from the edge of the PE film to the center of the PE film, and then... After turning via the inner arc-shaped guide rail 703, the film moves from the center to the edge of the PE film. At this time, the traction electromagnet 803 is simultaneously de-energized and released. The pressure plate spring 802 presses the cleaning scraper 804, causing them to slide closer together. The cleaning scraper 804 clamps the PE film to squeeze and scrape away excess adhesive. Then, it moves to the edge of the PE film. Through the horizontal conveying of the PE film and the movement of the flexible scraper 805, the adhesive overflowing from the edge of the glued and pressed PE film is scraped away and simultaneously transferred to the surface of the flexible scraper 805. Then, the traction electromagnet 803 is energized to generate magnetic force that attracts the magnetic traction block 808. The magnetic traction block 808 and the vertical connecting rod 807 then cause the cleaning scraper 804 to slide and separate. The flexible scraper 805 passes through the adhesive removal groove 901, scraping away adhesive from its sides and bottom. Adhesive transferred to the surface of the flexible scraper 805 is then scraped away by the adhesive removal scraper 9. The cleaning motor 904 drives the rotating cleaning brush 902 to clean the surfaces of the flexible scraper 805 and the adhesive removal scraper 9, transferring the adhesive onto the rotating cleaning brush 902. When the rotating cleaning brush 902, coated with adhesive, rotates to the side of the residual adhesive collection box 907, the high-pressure jet nozzle 906 sprays high-pressure gas to blow off the adhesive from the rotating cleaning brush 902. The cleaned flexible scraper 805 is then further circulated to the glued and pressed PE film to complete the continuous cleaning of the composite PE film.This prevents adhesive from overflowing from the edges of the PE film and staining non-adhesive surfaces, thus avoiding adhesion at the edges of the composite film and preventing overflowing adhesive from staining the subsequent pressure rollers.

[0051] The composite molding apparatus for matte PE film and milky white PE film provided by the present invention winds matte PE film and milky white PE film respectively on an upper winding roller 101 and a lower winding roller 102 symmetrically and parallelly arranged on a horizontal conveyor frame 1. Then, when the upper PE film is conveyed horizontally forward, it is coated with adhesive by the coating roller 2 and then bonded to the lower PE film and conveyed to the pressing conveyor roller 4. The upper and lower symmetrical pressing conveyor rollers 4 rotate to squeeze and bond the film, and then it is conveyed to the circulating conveyor frame 7. The synchronous traction belt 704 drives all the cleaning scrapers 804 connected to it to move synchronously. When the symmetrically arranged cleaning scrapers 804 pass over the glued and pressed PE film, they are clamped by flexible scraper strips 805. The flexible scraper strips 805 move along the circulating conveyor frame 7. When the conveyor rail 701 moves outward, the excess glue on the edge of the glued and pressed PE film is scraped off and transferred to the surface of the flexible scraper 805. Then, the cleaning scraper 804 drives the flexible scraper 805 to be further conveyed to the glue removal scraper 9. The glue removal scraper 9 scrapes off the glue transferred to the surface of the flexible scraper 805 and transfers it to the glue removal scraper 9. Then, the cleaned flexible scraper 805 is further circulated and conveyed to the glued and pressed PE film to complete the continuous cleaning of the composite PE film. This prevents the glue from overflowing from the edge of the PE film and contaminating the non-adhesive surface, causing the edge of the composite film to stick together. It also prevents the overflowing glue from contaminating the subsequent pressure rollers, which is beneficial to improving the processing and production quality of the composite PE film.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A composite molding apparatus for matte PE film and milky white PE film, comprising a horizontal conveyor frame (1), wherein an upper winding roller (101) and a lower winding roller (102) are symmetrically arranged at the front end of the horizontal conveyor frame (1), characterized in that, Also includes: A glue-applying roller (2) is arranged parallel to the rear side of the upper winding roller (101). The surface of the glue-applying roller (2) is provided with a glue storage mesh (201). A glue storage trough (203) is provided below the glue-applying roller (2). A glue-applying motor (202) is connected to the shaft end of the glue-applying roller (2). A pair of pressing conveyor rollers (4) are arranged on the rear side of the glue coating roller (2), and the two pressing conveyor rollers (4) are arranged symmetrically and parallel to each other. A circulating conveyor frame (7) is arranged in parallel on the rear side of the pressing conveyor roller (4). Multiple pairs of circulating conveyor frames (7) are arranged on the rear side of the pressing conveyor roller (4). Each pair of circulating conveyor frames (7) is arranged symmetrically on the left and right. Two circulating conveyor guide rails (701) are arranged symmetrically on the middle of each circulating conveyor frame (7). A synchronous traction belt (704) is arranged on the inner side of the circulating conveyor guide rail (701). A traction conveyor wheel (705) is arranged on the inner side of the synchronous traction belt (704). A traction motor (706) is connected to the shaft end of the traction conveyor wheel (705). A connecting slide (8) is slidably connected in the middle of the circulating conveying guide rail (701). Multiple connecting slides (8) are evenly connected around the middle of the circulating conveying guide rail (701). The connecting slides (8) on the circulating conveying guide rail (701) are symmetrically arranged in the upper and lower parts and correspond to each other. A cleaning scraper (804) is connected to the adjacent side of the connecting slide (8). A flexible scraper (805) is connected to the adjacent side of the cleaning scraper (804). A de-adhesive scraper (9) is connected to the outer end of the circulating conveyor frame (7). A de-adhesive fitting groove (901) is provided in the middle of the de-adhesive scraper (9). The de-adhesive fitting groove (901) and the flexible scraper (805) are correspondingly arranged and their sizes are matched. A composite take-up roller (103) is disposed on the rear side of the circulating conveyor frame (7).

2. The composite molding apparatus for matte PE film and milky white PE film according to claim 1, characterized in that, The traction motor (706) drives the synchronous traction belt (704) to rotate cyclically along the circulating conveying guide rail (701) via the traction conveying wheel (705). The synchronous traction belt (704) drives all the connecting slides (8) connected to it to move synchronously along the circulating conveying guide rail (701), thereby driving the cleaning scraper (804) to move synchronously. When the symmetrically arranged cleaning scraper (804) passes through the glued and pressed PE film, it is clamped by the flexible scraper (805). When the flexible scraper (805) moves outward along the circulating conveying guide rail (701), it passes through the edge of the glued and pressed PE film to scrape off the overflowing glue and transfer it to the surface of the flexible scraper (805).

3. The composite molding apparatus for matte PE film and milky white PE film according to claim 1, characterized in that, A vertical connecting sleeve (801) is provided in the middle of the connecting slide (8), and a vertical connecting rod (807) is provided in the middle of the cleaning scraper (804). The cleaning scraper (804) is slidably connected to the vertical connecting sleeve (801) through the vertical connecting rod (807). A pressure plate spring (802) is provided in the middle of the vertical connecting rod (807), and the pressure plate spring (802) presses the cleaning scraper (804) to slide closer to each other.

4. The composite molding apparatus for matte PE film and milky white PE film according to claim 3, characterized in that, A magnetic traction block (808) is connected to the outer end of the vertical connecting rod (807), and a traction electromagnet (803) is connected to the outer end of the vertical connecting sleeve (801). When the traction electromagnet (803) is energized, it generates a magnetic force to attract the magnetic traction block (808), and then the cleaning scraper (804) is driven to slide and separate from each other through the magnetic traction block (808) and the vertical connecting rod (807).

5. The composite molding apparatus for matte PE film and milky white PE film according to claim 1, characterized in that, A rotating cleaning brush (902) is provided on the front side of the adhesive removal groove (901). A central drive shaft (903) is provided in the middle of the rotating cleaning brush (902). The rotating cleaning brush (902) is rotatably connected to the adhesive removal scraper (9) through the central drive shaft (903). A cleaning motor (904) is connected to the shaft end of the central drive shaft (903). A residual adhesive collection box (907) is provided on the side of the rotating cleaning brush (902) away from the adhesive removal groove (901). A high-pressure air supply pipe (905) is provided in the middle of the residual adhesive collection box (907). Multiple high-pressure air nozzles (906) are evenly connected in the middle of the high-pressure air supply pipe (905). All high-pressure air nozzles (906) are facing the rotating cleaning brush (902).

6. The composite molding apparatus for matte PE film and milky white PE film according to claim 1, characterized in that, A vertical conveying cylinder (204) is provided at the center of the glue storage tank (203). A glue delivery slot (205) is horizontally provided at the top of the vertical conveying cylinder (204). The glue delivery slot (205) is arranged parallel to the bottom of the glue coating roller (2). A booster pump cylinder (206) is connected to the bottom of the vertical conveying cylinder (204). A glue inlet (207) is connected to the bottom of the booster pump cylinder (206). A pumping impeller (208) is rotatably provided inside the booster pump cylinder (206). A pumping motor (209) is connected to the shaft end of the pumping impeller (208).

7. The composite molding apparatus for matte PE film and milky white PE film according to claim 6, characterized in that, A horizontal adjustment groove (3) is provided in the middle of the glue delivery slot (205). Adjustment sealing plates (301) are symmetrically arranged on the left and right sides of the horizontal adjustment groove (3). The adjustment sealing plates (301) are horizontally slidably connected to the glue delivery slot (205) through the horizontal adjustment groove (3). The dimensions of the adjustment sealing plates (301) and the glue delivery slot (205) are mutually matched. An adjustment screw sleeve (302) is connected to the outer end of the adjustment sealing plate (301). An adjustment screw (303) is nested and connected to the inner side of the adjustment screw sleeve (302). An adjustment motor (304) is connected to the middle of the adjustment screw (303).

8. The composite molding apparatus for matte PE film and milky white PE film according to claim 1, characterized in that, A synchronous drive shaft (401) is provided at the center of the pressing conveyor roller (4). A synchronous gear (403) is connected to one end of the synchronous drive shaft (401), and a pressing motor (404) is connected to the other end of the synchronous drive shaft (401). The pressing motor (404) drives the pressing conveyor roller (4) arranged symmetrically on the upper and lower sides to rotate synchronously in opposite directions through the synchronous gear (403) and the synchronous drive shaft (401).

9. The composite molding apparatus for matte PE film and milky white PE film according to claim 8, characterized in that, The pressing conveyor roller (4) is composed of multiple unit pressing rollers (5). The multiple unit pressing rollers (5) are arranged horizontally along the synchronous drive shaft (401). A central bushing (501) is provided at the center of each unit pressing roller (5). The unit pressing roller (5) is slidably connected to the synchronous drive shaft (401) through the central bushing (501). A locking connecting sleeve (502) is provided in the middle of the central bushing (501). Multiple drive connecting grooves (402) are evenly arranged horizontally in the middle of the synchronous drive shaft (401). The drive connecting grooves (402) and the unit pressing rollers (5) are arranged correspondingly to each other. A magnetic locking pin (503) is slidably fitted in the middle of the locking connecting sleeve (502). A locking spring (504) is provided in the middle of the magnetic locking pin (503). The magnetic locking pin (503) and the drive connecting groove (402) are arranged correspondingly to each other and their dimensions are matched.

10. The composite molding apparatus for matte PE film and milky white PE film according to claim 9, characterized in that, A horizontal guide frame (6) is arranged parallel to the outer side of the pressing conveyor roller (4). A traction adjustment frame (603) is symmetrically slidably connected in the middle of the horizontal guide frame (6). A plurality of fitting connection slots (604) are evenly arranged in the middle of the traction adjustment frame (603) along the horizontal direction. A connecting electromagnet (605) is arranged in the middle of the fitting connection slots (604). A sliding adjustment sleeve (505) is arranged in the middle of the unit pressing roller (5). The inner and outer ends of the locking connection sleeve (502) are respectively connected to the central shaft sleeve (501) and the sliding adjustment sleeve (505). The traction adjustment frame (603) is slidably connected to the unit pressing wheel (5) through the sliding adjustment sleeve (505). When the connecting electromagnet (605) is energized, it generates magnetic force to attract the magnetic locking pin (503) to slide outward from the driving connection groove (402) and simultaneously embed into the corresponding fitting connection groove (604). The outer end of the traction adjustment frame (603) is connected to a translation screw sleeve (606). The inner side of the translation screw sleeve (606) is nested with a translation screw rod (601). The shaft end of the translation screw rod (601) is connected to a translation motor (602).

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