Uniform extruder for impregnated paper production

Abstract

The utility model discloses a kind of even extruding machine for impregnated paper production, it includes workbench, the upper end of the workbench is provided with glue tank, the upper end of the workbench is rotatably connected with discharging roller and multiple guide rollers, the upper end of the workbench is fixedly connected with support frame, the support frame is rotatably connected with upper extruding roller and lower extruding roller, the lateral wall of the support frame is fixedly connected with pipeline, one side of the pipeline is fixedly connected with upper scraper and lower scraper, the surface of the upper scraper and lower scraper respectively with upper extruding roller and lower extruding roller contact, the bottom end of the upper scraper is provided with smoothing mechanism. Through the above structure, smoothing mechanism is used to smooth the surface of paper, reduce the local glue accumulation or vacancy caused by paper wrinkle, and the excess glue on the surface of roller body can be scraped in real time by upper scraper and lower scraper, to avoid the glue of roller body affecting the glue coating thickness of paper surface.

Description

Technical Field

[0001] This utility model relates to the field of impregnated paper production technology, specifically to a uniform extrusion machine for impregnated paper production. Background Technology

[0002] Impregnated paper is a material made from wood pulp and other raw materials, which is then impregnated with functional resins such as melamine-formaldehyde resin and phenolic resin, and dried and cured. It is mainly used in the fields of artificial boards, surface decoration, building decoration, and industrial protection, giving the substrate an aesthetic appearance and durable protection. To ensure stable product quality, it is usually necessary to control the amount of resin impregnation on the base paper. After the resin-impregnated base paper is passed between upper and lower extrusion rollers, the amount of resin adhering is controlled to avoid excessive resin, which leads to difficult drying, high cost, and brittle finished products, or insufficient resin, which leads to uneven impregnation and insufficient performance after curing.

[0003] However, most existing extrusion devices lack a real-time scraping structure, resulting in uneven glue residue on the extrusion roller surface, large differences in glue thickness between the upper and lower surfaces of the paper, and glue accumulation at the wrinkles on the paper surface, leading to significant fluctuations in the appearance and physical properties of the finished impregnated paper, making it difficult to meet the requirements of high-quality production. Utility Model Content

[0004] This utility model provides a uniform glue extruder for impregnated paper production. It can use a smoothing mechanism to smooth the paper surface, reduce local glue accumulation or gaps caused by paper wrinkles, and use upper and lower scrapers to scrape off excess glue from the roller surface in real time, so as to avoid the glue on the roller affecting the glue coating thickness on the paper surface.

[0005] To achieve the above objectives, a uniform extrusion machine for impregnated paper production is provided, comprising a worktable, a glue tank at the upper end of the worktable, a feeding roller and a plurality of guide rollers rotatably connected to the upper end of the worktable, a support frame fixedly connected to the upper end of the worktable, an upper extrusion roller and a lower extrusion roller rotatably connected to the support frame, a pipe fixedly connected to the side wall of the support frame, an upper scraper and a lower scraper fixedly connected to one side of the pipe, the upper scraper and the lower scraper respectively contacting the surfaces of the upper extrusion roller and the lower extrusion roller, and a smoothing mechanism provided at the bottom end of the upper scraper. The glue trough is designed for easy placement of glue; the feed roller is designed for stable unwinding of the base paper; the guide roller is designed to determine the paper's transport path and ensure that the paper passes through the extrusion roller after entering the glue trough; the support frame is designed to facilitate the fixed installation of the extrusion roller and provide precise rotational support; the pipe is designed to facilitate resin transport; the upper and lower scrapers are designed to easily scrape the resin off the surface of the extrusion roller; and the smoothing mechanism is designed to eliminate wrinkles on the paper surface before glue extrusion.

[0006] According to the uniform extrusion machine for impregnated paper production, a motor is fixedly connected to the support frame, and the output end of the motor is fixedly connected to the upper extrusion roller. The motor is provided to facilitate driving the upper extrusion roller to rotate.

[0007] According to the uniform extrusion machine for impregnated paper production, a first gear and a second gear are fixedly connected to one end of the upper extrusion roller and the lower extrusion roller, respectively, and the first gear and the second gear mesh. The first gear and the second gear are provided to facilitate the synchronous rotation of the upper extrusion roller and the lower extrusion roller in opposite directions, thereby generating a clamping and extruding force on the paper.

[0008] According to the uniform extruder for producing impregnated paper, an inclined baffle is fixedly connected to the surface of the upper scraper, and an opening is provided on the side wall of the pipe near the baffle. The end of the pipe away from the opening faces the glue tank. The baffle is provided to facilitate the precise guidance of the resin scraped off by the upper scraper into the opening, preventing resin splashing and contamination of the equipment during the extrusion process. The opening is provided to facilitate the entry of resin into the pipe.

[0009] According to the uniform extruder for producing impregnated paper, the bottom end of the upper scraper is provided with a groove, and a telescopic plate is slidably connected to the groove. The groove is provided to conveniently limit the movement trajectory of the telescopic plate, and the telescopic plate is provided to conveniently fix the push plate.

[0010] According to the uniform extrusion machine for producing impregnated paper, the smoothing mechanism includes a push plate, which is fixedly connected to the end of a telescopic plate away from the upper scraper. The push plate is provided to facilitate the smoothing of wrinkles on the paper surface.

[0011] According to the uniform extruder for impregnated paper production, a spring is fixedly connected to one end of the telescopic plate located inside the chute, and the end of the spring away from the telescopic plate is fixedly connected to the upper scraper. The spring is used to facilitate the reduction of pressure on the telescopic plate, allowing the pusher plate to automatically adapt to the contact pressure with the paper.

[0012] According to the uniform extrusion machine for impregnated paper production, the lower surface of a set of guide rollers at the upper end of the worktable is placed in the glue tank.

[0013] The beneficial effects of this utility model are: the smoothing mechanism smooths the paper surface, reducing local glue accumulation or gaps caused by paper wrinkles, and the upper and lower scrapers can scrape off excess glue on the roller surface in real time, preventing the glue on the roller from affecting the glue coating thickness on the paper surface.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a three-dimensional structural diagram of a uniform extrusion machine for producing impregnated paper according to the present invention. Figure 2 This utility model Figure 1 Enlarged view of A in the middle; Figure 3 This is a schematic diagram of the upper and lower scrapers of a uniform extrusion machine for producing impregnated paper according to this utility model. Figure 4 This utility model Figure 3 A magnified view of B in the middle.

[0016] Legend: 1. Workbench; 2. Glue tank; 3. Feeding roller; 4. Guide roller; 5. Support frame; 6. Upper extrusion roller; 7. Lower extrusion roller; 8. Pipe; 9. Upper scraper; 10. Lower scraper; 11. Smoothing mechanism; 1101. Push plate; 12. Motor; 13. First gear; 14. Second gear; 15. Baffle; 16. Opening; 17. Slide groove; 18. Telescopic plate; 19. Spring. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] The housings of the motor and gears in this device are not shown in the figure.

[0019] Reference Figures 1 to 4 This utility model discloses a uniform extrusion machine for impregnated paper production, which includes a workbench 1, a glue tank 2 at the upper end of the workbench 1, a feeding roller 3 and a plurality of guide rollers 4 rotatably connected to the upper end of the workbench 1, a support frame 5 fixedly connected to the upper end of the workbench 1, an upper extrusion roller 6 and a lower extrusion roller 7 rotatably connected to the support frame 5, a pipe 8 fixedly connected to the side wall of the support frame 5, an upper scraper 9 and a lower scraper 10 fixedly connected to one side of the pipe 8, the upper scraper 9 and the lower scraper 10 respectively contact the surfaces of the upper extrusion roller 6 and the lower extrusion roller 7, which can scrape off excess resin without damaging the elastic layer of the roller body, and a smoothing mechanism 11 is provided at the bottom end of the upper scraper 9.

[0020] The support frame 5 is fixedly connected to the motor 12. The output end of the motor 12 is fixedly connected to the upper extrusion roller 6. One end of the upper extrusion roller 6 and the lower extrusion roller 7 are respectively fixedly connected to the first gear 13 and the second gear 14. The first gear 13 and the second gear 14 mesh to ensure that the speed of the two rollers is completely synchronized, so as to avoid paper stretching or wrinkling due to speed difference.

[0021] An inclined baffle 15 is fixedly connected to the surface of the upper scraper 9. An opening 16 is provided on the side wall of the pipe 8 near the baffle 15. The end of the pipe 8 away from the opening 16 is directly opposite the glue tank 2. The inner wall of the pipe 8 is smooth and has no obvious protrusions to ensure smooth resin flow and no residual blockage. A sliding groove 17 is provided at the bottom of the upper scraper 9. A telescopic plate 18 is slidably connected to the sliding groove 17.

[0022] The smoothing mechanism 11 includes a push plate 1101, which is fixedly connected to the end of the telescopic plate 18 away from the upper scraper 9. A spring 19 is fixedly connected to the end of the telescopic plate 18 located inside the slide groove 17. The end of the spring 19 away from the telescopic plate 18 is fixedly connected to the upper scraper 9. The push plate 1101 can automatically adjust the contact pressure with the paper by compressing or stretching the spring 19 through the telescopic plate 18, and always maintain a "light pressure smoothing" state to adapt to the production needs of different specifications of raw paper. The lower surface of a set of guide rollers 4 at the upper end of the worktable 1 is placed in the glue tank 2.

[0023] Working principle: During use, an appropriate amount of functional resin is injected into the glue tank 2. The paper roll is installed on the unloading roller 3, and one end of the paper is pulled past the guide roller 4 and the lower extrusion roller 7 in sequence to ensure that the paper tension is moderate. After being impregnated with resin, the paper continues to be conveyed forward under the action of the subsequent traction device. When it passes the push plate 1101 at the bottom of the upper scraper 9, the push plate 1101 gently presses the paper surface under the elastic thrust of the spring 19, smoothing out the wrinkles generated by the paper during unwinding or impregnation, ensuring that the paper surface is flat when it enters the extrusion roller. The starting motor 12 drives the upper extrusion roller 6 to rotate. The upper extrusion roller 6 passes through... The meshing first gear 13 and second gear 14 drive the lower extrusion roller 7 to rotate synchronously. The flat glued base paper is clamped by the two rollers and conveyed forward. The pressure between the two rollers squeezes out the excess resin in the base paper, so that the amount of resin adhering is controlled within the process range. At the same time, the upper scraper 9 and the lower scraper 10 scrape off the excess resin remaining on the surface of the upper extrusion roller 6 and the lower extrusion roller 7 in real time. Meanwhile, the resin scraped off by the upper scraper 9 enters the pipe 8 through the opening 16 of the pipe 8 under the guidance of the inclined baffle 15, and finally flows back to the glue tank 2. The resin scraped off by the lower scraper 10 falls directly into the glue tank 2, realizing recycling.

[0024] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An even calender for impregnated paper production, characterized in that The device includes a workbench (1), with a glue tank (2) at the upper end of the workbench (1). A feeding roller (3) and multiple guide rollers (4) are rotatably connected to the upper end of the workbench (1). A support frame (5) is fixedly connected to the upper end of the workbench (1). An upper extrusion roller (6) and a lower extrusion roller (7) are rotatably connected to the support frame (5). A pipe (8) is fixedly connected to the side wall of the support frame (5). An upper scraper (9) and a lower scraper (10) are fixedly connected to one side of the pipe (8). The upper scraper (9) and the lower scraper (10) are in contact with the surfaces of the upper extrusion roller (6) and the lower extrusion roller (7), respectively. A smoothing mechanism (11) is provided at the bottom end of the upper scraper (9).

2. The uniform extruder for impregnated paper production according to claim 1, characterized in that, The support frame (5) is fixedly connected to a motor (12), and the output end of the motor (12) is fixedly connected to the upper extrusion roller (6).

3. The uniform calender for impregnated paper production according to claim 2, characterized in that, One end of the upper extrusion roller (6) and the lower extrusion roller (7) are respectively fixedly connected to a first gear (13) and a second gear (14), and the first gear (13) and the second gear (14) mesh.

4. A uniform extruder for impregnated paper production according to claim 3, characterized in that, An inclined baffle (15) is fixedly connected to the surface of the upper scraper (9), and an opening (16) is provided on the side wall of the pipe (8) near the baffle (15). The end of the pipe (8) away from the opening (16) is directly opposite the glue tank (2).

5. The uniform calender for impregnated paper production according to claim 1, wherein The bottom end of the upper scraper (9) is provided with a groove (17), and the groove (17) is slidably connected to a telescopic plate (18).

6. A uniform extruder for impregnated paper production according to claim 5, characterized in that, The smoothing mechanism (11) includes a push plate (1101) which is fixedly connected to the end of the telescopic plate (18) away from the upper scraper (9).

7. The uniform calender for impregnated paper production according to claim 6, characterized in that, A spring (19) is fixedly connected to one end of the telescopic plate (18) located inside the slide groove (17), and the end of the spring (19) away from the telescopic plate (18) is fixedly connected to the upper scraper (9).

8. The uniform calender for impregnated paper production according to claim 1, wherein The lower surface of a set of guide rollers (4) at the upper end of the worktable (1) is placed in the glue tank (2).

Images