A gluing and drying device for paper-plastic composite cover polishing machine

Abstract

The present application relates to a gluing and drying device for a paper-plastic composite capping machine, belonging to the technical field of paper-plastic composite equipment, which comprises a gluing device, a drying box and a hot pressing device, the gluing device comprises a supporting frame, the supporting frame is provided with a recovery tank, a primary gluing component and a secondary gluing component in sequence from bottom to top, the recovery tank and the supporting frame are fixed horizontally, a scraper is slidably connected in the recovery tank, the primary gluing component comprises a horizontally sliding glue spraying roller and a frame, the glue spraying roller performs a primary glue spraying treatment on the film, and then the film is evenly coated and scraped by the glue roller in the secondary gluing component, the glued film is dried in a drying box, and then composited with kraft paper by hot pressing, and finally the composited kraft paper is collected, the present application has the effect of making the gluing process of the paper-plastic composite capping machine more uniform and sufficient.

Description

Technical Field

[0001] The present application relates to the technical field of paper-plastic composite equipment, and in particular to a gluing and drying device for a paper-plastic composite cover machine. Background Art

[0002] At present, paper-plastic composite capping machines are widely used in the packaging and printing industry. Their main function is to cover a layer of plastic film on the surface of kraft paper to enhance the appearance and durability of the product. In this process, the gluing device plays a vital role. It is responsible for evenly applying glue on the plastic film. Then, the plastic film after gluing is dried in a drying oven and then hot-pressed with kraft paper to achieve the bonding effect.

[0003] At present, there are some gluing devices for paper-plastic composite capping machines on the market. These devices usually adopt a simple rubber roller structure to apply glue on the plastic film through the rotation of the rubber roller. Although this structure realizes the gluing function to a certain extent, due to the unreasonable design of the rubber roller surface, it often leads to unstable gluing amount and uneven distribution of glue, which affects the composite quality of the product. Utility Model Content

[0004] In order to make the gluing process of a paper-plastic composite cover polishing machine more uniform and sufficient, the present application provides a gluing and drying device for a paper-plastic composite cover polishing machine.

[0005] The paper-plastic composite cover gluing and drying device provided in this application adopts the following technical solution:

[0006] A paper-plastic composite cover gluing and drying device comprises a drying box and a hot pressing device. According to the conveying sequence of the film, the drying box is arranged in front of the hot pressing device. The gluing device is also included. The gluing device is arranged in front of the drying device. The gluing device comprises a support frame, which is vertically fixed on the ground. A recovery trough and a primary gluing component are arranged on the support frame from bottom to top. The recovery trough itself is arranged horizontally. The primary gluing component comprises a first pressing roller and a glue spraying group. The first pressing roller rotates horizontally relative to the support frame, and the glue spraying group slides horizontally relative to the support frame. The film passes through the middle of the first pressing roller and the glue spraying group and abuts against the first pressing roller. The glue spraying group comprises a plurality of glue spraying rollers for spraying glue on the film.

[0007] By adopting the above technical scheme, in the paper-plastic composite capping machine, a gluing device, a drying device and a hot pressing device are arranged according to the conveying order of the film, that is, the film is first coated with a layer of glue through the gluing device, and then dried by the drying device, and then hot-pressed with the kraft paper, so that the film and the kraft paper are compounded together and then rolled up. When gluing, the film is passed through the middle of the first pressing roller and the glue spraying group, and the glue spraying roller will slide horizontally to spray the film, and the dripping glue falls into the recovery tank for collection, and can also be recycled, which is energy-saving and environmentally friendly. The glue spraying process can also make the film gluing more uniform and smooth.

[0008] Optionally, the glue spraying group also includes a frame, a plurality of glue spraying rollers are vertically arranged and spaced parallel to each other, the internal hollow space of the glue spraying rollers is connected to the frame, a first feeding pipe is fixedly connected to the frame, a plurality of nozzles are fixed at intervals on the side walls of the glue spraying rollers, and a driving component for driving the frame to slide is provided on the support frame.

[0009] By adopting the above technical solution, glue is injected into the frame through the first feeding pipe, and then the frame is connected with the glue spraying group and injected into the glue spraying roller. The glue spraying roller reciprocates in the horizontal direction to spray glue on the film. Multiple glue spraying rollers can make the glue application area of ​​the film larger and the glue application more uniform.

[0010] Optionally, the driving assembly includes a first threaded rod, which is horizontally arranged and rotates relative to the support frame, the first threaded rod is threadedly connected to the frame, and the frame abuts against the first pressure roller.

[0011] By adopting the above technical solution, when the first threaded rod rotates, the frame and the first threaded rod rotate together and abut against the first pressure roller at the same time, providing a limiting guide for the frame to slide, thereby driving the frame to slide back and forth in the horizontal direction.

[0012] Optionally, a secondary gluing assembly is provided on the support frame, and the secondary gluing assembly is arranged above the primary gluing assembly. The primary gluing assembly includes a second pressing roller and a gluing roller. The second pressing roller and the gluing roller are arranged in parallel and abut against each other. The rotation axes of the second pressing roller and the gluing roller are both in the horizontal direction. The film passes through the middle of the second pressing roller and the gluing roller. The upper gluing roller is hollow inside, and a second feeding pipe is fixedly connected to the upper gluing roller. A plurality of discharge holes are provided at intervals along the circumferential direction on the side wall of the upper gluing roller, and a scraper is fixed on the side wall of the upper gluing roller. The scraper is spirally arranged along the circumference of the upper gluing roller, and the scraper and the discharge holes are arranged in parallel at intervals.

[0013] By adopting the above technical scheme, the film is passed through the middle of the first pressure roller and the glue spraying group, glue is injected into the glue roller from the second feeding pipe, and the glue flows out from the discharge hole of the glue roller. While flowing out, the scraper evenly spreads the glue on the film, which not only allows the positions of the film that were not sprayed for the first time to be coated with glue for the second time, but also allows the scraper to scrape the positions where the film was glued twice, so that the positions where the glue was applied twice are coated more evenly.

[0014] Optionally, a spiral blade is rotatably connected inside the glue-applying roller, and the rotation axis direction of the spiral blade is parallel to the length direction of the glue-applying roller.

[0015] By adopting the above technical solution, when the glue is injected into the glue roller, the rotation of the spiral blades can make the glue in the glue roller flow more evenly, so that the glue flowing out of the discharge hole is also more even and the flow rate is slower.

[0016] Optionally, a scraper is slidably connected in the recovery groove, and the scraper slides in a reciprocating direction along the length direction of the recovery groove. A screw assembly for driving the scraper to slide back and forth is provided on the recovery groove, and a plurality of perforations are spaced apart on the scraper.

[0017] By adopting the above technical solution, the glue dripping from the glue roller into the recovery tank is scraped off by the reciprocating motion of the scraper, which can reduce the accumulation of glue due to its own viscosity. In addition, during the scraping process, the perforations on the scraper can prevent the glue from overflowing from the recovery tank during the scraping process.

[0018] Optionally, the screw assembly includes a second threaded rod and a guide rod, the second threaded rod and the guide rod are both arranged in a direction parallel to the length of the recovery groove and respectively pass through the scraper, the second threaded rod and the scraper are threadedly connected, the guide rod is slidingly connected to the scraper, the second threaded rod is rotationally connected relative to the support frame in the horizontal direction, and the guide rod is fixed to the support frame.

[0019] By adopting the above technical solution, the second threaded rod rotates relative to the support frame, and at the same time the second threaded rod rotates relative to the scraper thread, and the scraper reciprocates along the length direction of the recovery groove under the guidance of the guide rod.

[0020] Optionally, guide ports are provided at both ends of the recovery trough, and baffles are slidably connected to the guide ports, and the sliding direction of the baffles is along the horizontal direction.

[0021] By adopting the above technical solution, a guide port is set on the recovery tank, and a sliding baffle is used to open the guide port. That is, when glue drips from the glue roller, the scraper moves back and forth to scrape the glue to the guide port for collection, thereby preventing the glue from accumulating and overflowing in the recovery tank.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The film first passes through the initial gluing assembly on the support frame, and then the glue spraying roller reciprocates horizontally to spray glue on the film. At the same time, the dripping glue falls into the recovery tank for collection and recycling, reducing resource waste;

[0024] 2. After the film is initially sprayed with glue by the glue spray roller, it is rolled and glued again by the glue roller. Not only can the uneven initial gluing be coated with glue for the second time, but the scraper can also scrape the film that has been glued twice, making the film more evenly glued. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0026] Figure 2 It is a schematic diagram showing the structure of the gluing device;

[0027] Figure 3 This is a schematic diagram showing the back structure of the gluing device;

[0028] Figure 4 This is a schematic diagram showing the cross-sectional structure of the glue roller;

[0029] Figure 5 This is a schematic diagram showing the scraper structure.

[0030] In the figure, 1, drying box; 2, hot pressing device; 3, gluing device; 31, support frame; 4, recovery tank; 41, scraper; 411, perforation; 42, lead screw assembly; 421, second threaded rod; 4211, driven gear; 4212, second rotating gear; 422, guide rod; 423, motor; 424, driving gear; 43, guide port; 431, baffle; 4311, cylinder; 44, recovery device; 5, initial gluing assembly; 51, first pressing roller; 52. Glue spraying group; 521. Frame; 5211. First feeding pipe; 5212. First storage barrel; 522. Glue spraying roller; 5221. Nozzle; 53. Driving assembly; 531. First threaded rod; 532. First rotating gear; 5321. Conveyor belt; 6. Secondary gluing assembly; 61. Second pressure roller; 62. Glue roller; 621. Discharge hole; 622. Scraper; 623. Second feeding pipe; 6231. Second storage barrel; 624. Spiral blade. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0032] The embodiment of the present application discloses a gluing and drying device for a paper-plastic composite cover polishing machine.

[0033] refer to Figure 1A paper-plastic composite cover gluing and drying device comprises a gluing device 3, a drying box 1 and a hot pressing device 2 in sequence. According to the processing sequence of the film, it is firstly subjected to gluing treatment by the gluing device 3, then enters the drying box 1 for drying treatment, and then is transported to the hot pressing device 2, hot-pressed and composited with kraft paper, and finally collected. A support frame 31 is vertically fixed at the gluing device 3, and a recovery tank 4, a primary gluing component 5 and a secondary gluing component 6 are arranged on the support frame 31 from bottom to top.

[0034] refer to Figure 2 and Figure 3 The initial glue application assembly 5 includes a first pressing roller 51 and a glue spraying group 52. The glue spraying group 52 includes a frame 521 and a plurality of glue spraying rollers 522. The plurality of glue spraying rollers 522 are vertically arranged and spaced parallel to each other. The glue spraying rollers 522 are hollow inside and communicate with the frame 521 and rotate relative to the frame 521. The glue spraying rollers 522 are fixed with a plurality of nozzles 5221. The plurality of nozzles 5221 are spaced apart along the circumference of the glue spraying rollers 522. The frame 521 is fixedly connected with a first feeding pipe 5211. The first feeding pipe 5211 is away from the frame 521. One end of the frame 521 is fixedly connected to the first material storage barrel 5212, and the first material storage barrel 5212 is placed on the ground. Two first pressure rollers 51 are provided, and the two first pressure rollers 51 are arranged at intervals in the vertical direction, and the first pressure rollers 51 rotate in the horizontal direction relative to the support frame 31. The frame 521 slides in the horizontal direction relative to the support frame 31, and the film passes through the middle of the first pressure roller 51 and the glue spraying group 52, and at the same time abuts against the first pressure roller 51. A driving component 53 for driving the frame 521 to slide is provided on the support frame 31.

[0035] The driving assembly 53 includes a first threaded rod 531, which is horizontally arranged and rotates relative to the support frame 31. The first threaded rod 531 is threadedly connected to the frame 521. While the frame 521 is threadedly rotated with the first threaded rod 531, it abuts against the first pressure roller 51, thereby providing a guide limit for the movement of the frame 521.

[0036] refer to Figure 2 and Figure 4The secondary gluing assembly 6 includes a second pressure roller 61 and a gluing roller 62. The second pressure roller 61 and the gluing roller 62 are arranged in parallel and abut against each other. The rotation axis directions of the second pressure roller 61 and the gluing roller 62 are both in the horizontal direction. The film passes through the middle of the second pressure roller 61 and the gluing roller 62. The gluing roller 62 is hollow inside. The two ends of the gluing roller 62 are respectively fixedly connected with a second feeding tube 623. The end of the second feeding tube 623 away from the gluing roller 62 is fixed with a second storage barrel 6231. The inside of the gluing roller 62 is horizontally connected with a spiral blade 624. After the glue is injected into the gluing roller 62, the spiral blade 624 can make the glue in the gluing roller 62 flow more fully and evenly, and the flow rate More gentle; a plurality of discharge holes 621 are provided at intervals along the circumferential direction on the side wall of the glue roller 62, and a scraper 622 is fixed on the side wall of the glue roller 62. The scraper 622 is made of rubber and is soft in texture and will not damage the film. The scraper 622 is spirally arranged along the circumference of the glue roller 62, and the scraper 622 and the discharge holes 621 are spaced and parallel. The glue in the glue roller 62 flows out through the discharge holes 621, and is then smeared with the scraper 622. In this way, not only can the weak positions of the glue spraying on the film during the initial gluing be coated with glue for the second time, but also the glue flowing out of the glue roller 62 and the glue sprayed by the glue spraying roller 522 can be coated, so as to achieve the purpose of more uniform and sufficient gluing of the film.

[0037] refer to Figure 2 , Figure 3 and Figure 5The recovery trough 4 is horizontally arranged and fixedly connected to the support frame 31. Two scrapers 41 are slidably connected in the recovery trough 4. The two scrapers 41 are vertically arranged and abut against the side walls and the bottom of the recovery trough 4. The scraper 41 itself is provided with a plurality of through holes 411. The plurality of through holes 411 are spaced apart along the area of ​​the scraper 41. The bottom of the scraper 41 is arranged in a serrated shape. When the scraper 41 slides in the recovery trough 4, glue overflow can be reduced. A lead screw assembly 42 is arranged on the recovery trough 4. The lead screw assembly 42 includes a second threaded rod 421, a guide rod 422 and a motor 423. The motor 423 is fixedly connected to the recovery trough 4. An active tooth 424 is fixed on the motor 423 shaft of the motor 423. The second threaded rod 421 is arranged as a bidirectional threaded rod. The second threaded rod 421 and the guide rod 422 are both arranged in a direction parallel to the length of the recovery trough 4 and respectively penetrate the scraper 41. The second threaded rod 421 is threadedly connected to the scraper 41. The guide rod 422 is connected to the scraper 41 is slidably connected, the guide rod 422 is fixedly connected to the support frame 31, two driven teeth 4211 are coaxially fixed on the second threaded rod 421, the scraper 41 and the driven tooth 4211 are axially symmetrically arranged along the center point of the second threaded rod 421, the driving tooth 424 is meshed with the driven tooth 4211, the second threaded rod 421 is fixed with a second rotating tooth 4212, the first threaded rod 531 is fixed with a first rotating tooth 532, and a conveyor belt 5321 for transmission connection is arranged between the first rotating tooth 532 and the second rotating tooth 4212. When the motor 423 is started, the driving tooth 424 drives the driven tooth 4211 to rotate, thereby driving the second threaded rod 421 to rotate, and the two scrapers 41 can be driven to slide back and forth synchronously in the recovery tank 4, and the second threaded rod 421 is horizontally rotationally connected relative to the support frame 31. At this time, the first threaded rod 531 is also rotated by the transmission action of the first rotating tooth 532 and the second rotating tooth 4212.

[0038] The recovery groove 4 is provided with guide ports 43 at both ends, and a baffle 431 is provided at the guide port 43. A cylinder 4311 is fixed on the recovery groove 4, and the movable end of the cylinder 4311 is fixedly connected to the baffle 431. The baffle 431 abuts against the bottom of the recovery groove 4. The cylinder 4311 drives the baffle 431 to slide in the horizontal direction. The guide port 43 is connected with a recovery device 44 for recovering the dripping glue for recycling.

[0039] The implementation principle of the gluing and drying device of a paper-plastic composite cover machine in the embodiment of the present application is as follows: the film is first passed through the primary gluing component 5 in the gluing device 3, and the glue spraying roller 522 slides back and forth in the horizontal direction to spray glue on the film, and the dripping glue directly falls into the recovery tank 4 for collection and recovery. Then, the film that has been glued for the first time passes through the secondary gluing component 6, and the gluing roller 62 not only supplements the unsprayed positions on the film, but also evenly spreads the supplemented glue, so that the film is more fully and evenly glued. After the glue-coated film is dried in the drying box 1, it is hot-pressed and compounded with kraft paper, and finally collected.

[0040] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A paper-plastic composite cover gluing and drying device, comprising a drying box (1) and a hot pressing device (2). According to the conveying sequence of the film, the drying box (1) is arranged in front of the hot pressing device (2), and is characterized in that: The device also comprises a gluing device (3), which is arranged in front of the drying device. The gluing device (3) comprises a support frame (31), which is vertically fixed on the ground. A recovery tank (4) and a primary gluing assembly (5) are arranged on the support frame (31) from bottom to top. The recovery tank (4) is arranged horizontally. The primary gluing assembly (5) comprises a first pressing roller (51) and a glue spraying group (52). The first pressing roller (51) rotates in a horizontal direction relative to the support frame (31), and the glue spraying group (52) slides in a horizontal direction relative to the support frame (31). The film passes through the middle of the first pressing roller (51) and the glue spraying group (52) and abuts against the first pressing roller (51). The glue spraying group (52) comprises a plurality of glue spraying rollers (522) for spraying glue on the film.

2. The gluing and drying device for paper-plastic composite cover polishing machine according to claim 1, characterized in that: The glue spraying group (52) further comprises a frame (521), a plurality of glue spraying rollers (522) are vertically arranged and spaced apart from each other and parallel to each other, the interior of the glue spraying rollers (522) are hollow and communicate with the frame (521), a first feeding pipe (5211) is fixedly connected to the frame (521), a plurality of nozzles (5221) are fixedly arranged on the side wall of the glue spraying roller (522), and a driving assembly (53) for driving the frame (521) to slide is arranged on the support frame (31).

3. The gluing and drying device for paper-plastic composite cover polishing machine according to claim 2, characterized in that: The driving assembly (53) comprises a first threaded rod (531), the first threaded rod (531) is horizontally arranged and rotates relative to the support frame (31), the first threaded rod (531) is threadedly connected to the frame (521), and the frame (521) is in contact with the first pressing roller (51).

4. The gluing and drying device for paper-plastic composite cover polishing machine according to claim 1, characterized in that: The support frame (31) is provided with a secondary gluing assembly (6), which is arranged above the primary gluing assembly (5). The secondary gluing assembly (6) comprises a second pressing roller (61) and a gluing roller (62). The second pressing roller (61) and the gluing roller (62) are arranged in parallel and abut against each other. The rotation axes of the second pressing roller (61) and the gluing roller (62) are both in the horizontal direction. The film is passed from the second pressing roller (61) and the gluing roller (62) to the substrate. The rubber roller (62) passes through the middle, the interior of the upper rubber roller (62) is hollow, a second feeding tube (623) is fixedly connected to the upper rubber roller (62), a plurality of discharge holes (621) are arranged at intervals along the circumferential direction on the side wall of the upper rubber roller (62), and a scraper (622) is fixed on the side wall of the upper rubber roller (62), the scraper (622) is arranged in a spiral along the circumference of the upper rubber roller (62), and the scraper (622) and the discharge holes (621) are arranged in parallel at intervals.

5. The gluing and drying device for paper-plastic composite cover polishing machine according to claim 4, characterized in that: The glue-applying roller (62) is rotatably connected to a spiral blade (624) inside, and the rotation axis direction of the spiral blade (624) is parallel to the length direction of the glue-applying roller (62).

6. The gluing and drying device for paper-plastic composite cover polishing machine according to claim 1, characterized in that: A scraper (41) is slidably connected in the recovery groove (4), and the scraper (41) slides in a direction that reciprocates along the length direction of the recovery groove (4). A lead screw assembly (42) for driving the scraper (41) to slide reciprocally is provided on the recovery groove (4), and a plurality of through holes (411) are spaced apart on the scraper (41).

7. The gluing and drying device for paper-plastic composite cover polishing machine according to claim 6, characterized in that: The screw assembly (42) comprises a second threaded rod (421) and a guide rod (422); the second threaded rod (421) and the guide rod (422) are both arranged in parallel with the length direction of the recovery trough (4) and respectively penetrate the scraper (41); the second threaded rod (421) and the scraper (41) are threadedly connected; the guide rod (422) is slidably connected to the scraper (41); the second threaded rod (421) is rotatably connected to the support frame (31) in a horizontal direction; and the guide rod (422) is fixed to the support frame (31).

8. The gluing and drying device for paper-plastic composite cover polishing machine according to claim 7, characterized in that: The recovery trough (4) is provided with flow guide ports (43) at both ends, and a baffle (431) is slidably connected to the flow guide port (43), and the sliding direction of the baffle (431) is along the horizontal direction.

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