An impregnation device for decorative paper production

Abstract

The utility model belongs to the technical field of decorative paper production, specifically relates to a kind of impregnation device for decorative paper production, including impregnation box and lifting mechanism, two support frames are equipped in the left and right ends of impregnation box, guide roller is equipped on support frame, scraper assembly is equipped on the support frame of right side, scraper assembly includes fixed frame and two scrapers, fixed frame is equipped with the through-hole for the decorative paper to pass through, both sides of through-hole are equipped with guide sliding slot and several first bolt positioning holes, two scrapers are opposite and set in through-hole, two scrapers are slidably connected in the inside of two guide sliding slots, the both ends of two scrapers are equipped with second bolt positioning hole, the inside of impregnation box is equipped with two compression rollers;Lifting mechanism is arranged outside impregnation box, for driving impregnation box to move up and down.This device can adjust the height of impregnation box, to change the distance between compression roller and the bottom of impregnation box, so that the residual impregnation liquid in impregnation box is fully utilized, and raw materials are saved.

Description

Technical Field

[0001] This utility model belongs to the field of decorative paper production technology, and specifically relates to an impregnation device for decorative paper production. Background Technology

[0002] Decorative paper is an essential raw material in many building materials products, such as low-pressure boards and high-pressure boards used in furniture and cabinets, as well as fireproof boards and flooring.

[0003] Currently, the production process of decorative paper mainly includes impregnation, extrusion, drying, cooling, and winding. Among them, the impregnation process involves immersing the base paper of the decorative paper into an impregnation tank containing impregnation resin (such as melamine resin, phenolic resin, etc.), allowing the resin to penetrate the paper to improve its abrasion resistance, corrosion resistance, heat resistance, and mechanical properties.

[0004] However, the existing impregnation equipment has a fixed structure, in which the distance between the pressure roller used to press the decorative paper and the bottom of the impregnation tank is generally constant. This results in the impregnation liquid remaining in the impregnation tank not being fully utilized, causing waste. At the same time, when the decorative paper leaves the impregnation tank, its surface may have a lot of impregnation liquid adhering to it, which needs to be scraped off with a scraper. However, most existing scrapers are fixed and cannot be adjusted according to the thickness of the decorative paper.

[0005] Therefore, improvements are urgently needed. Utility Model Content

[0006] To address the aforementioned deficiencies in the existing technology, this utility model provides an impregnation device for decorative paper production, comprising an impregnation tank and a lifting mechanism. The top of the impregnation tank is open, and two support frames are provided at the left and right ends of the top of the impregnation tank. Guide rollers are rotatably connected to the top of each support frame. A scraper assembly is provided on the right support frame. The scraper assembly includes a fixed frame and two scrapers. The fixed frame is inclined, and its bottom is fixedly connected to the support frame on the corresponding side via a connecting rod. The fixed frame has a through hole for decorative paper to pass through. Guide grooves and several first bolt positioning holes are provided on both sides of the through hole. The two scrapers are positioned vertically opposite each other in the through hole, and the two ends of the two scrapers are slidably connected to the interior of the two guide grooves. Second bolt positioning holes are provided at both ends of the two scrapers. Two parallel pressure rollers are provided inside the impregnation tank. The lifting mechanism is located outside the impregnation tank and is used to drive the impregnation tank to move up and down.

[0007] Optionally, the lifting mechanism includes a top plate, a bottom plate, a servo motor, a guide rod, a threaded rod, and two sliders. The top plate and bottom plate are respectively located on the upper and lower sides of the immersion tank. The servo motor is located above the top plate. The guide rod and threaded rod are respectively located on the left and right sides of the immersion tank. The guide rod is fixedly connected between the top plate and the bottom plate. The threaded rod is rotatably connected between the top plate and the bottom plate and is parallel to the guide rod. The top end of the threaded rod passes through the top plate and is connected to the output shaft of the servo motor. The guide rod and the threaded rod pass through the two sliders respectively, and the slider on the right side is slidably connected to the threaded rod through the nut pair of the threaded rod. The two sliders are fixedly connected to the left and right ends of the immersion tank respectively.

[0008] Alternatively, the guide rod and threaded rod do not interfere with the two guide rollers.

[0009] Alternatively, the two guide rollers may be at the same height.

[0010] Optionally, the two pressure rollers are at the same height, and the height of both pressure rollers is lower than the height of the two guide rollers.

[0011] Optionally, each pressure roller is rotatably connected to a hanger, with the top of the hanger fixed to the bottom surface of the top plate. A scraper is provided on the right side of each pressure roller, with the top of the scraper fixedly connected to the hanger and the bottom of the scraper abutting against the side of the pressure roller.

[0012] Specifically, the scraper is used to remove excess impregnation liquid adhering to the surface of the pressure roller.

[0013] This invention also includes other components that enable the impregnation apparatus for decorative paper production to function properly, all of which are conventional techniques in the art. Furthermore, any devices or components not specified in this invention employ conventional techniques in the art, such as servo motors.

[0014] The working principle of this invention is as follows: the decorative paper base paper passes sequentially from left to right through two guide rollers and two pressure rollers, and then passes between the two scrapers of the scraper assembly. The decorative paper base paper does not interfere with the guide rods and threaded rods. The distance between the two scrapers is adjusted according to the thickness of the decorative paper base paper, and fixing bolts are passed through the first and second bolt positioning holes to secure the scrapers. The impregnation tank contains impregnation liquid, the height of which should just submerge the bottom of the pressure rollers and the decorative paper base paper, without touching the scrapers. During the movement of the decorative paper base paper, the pressure rollers rotate, and the scrapers can scrape off excess impregnation liquid adhering to the surface of the pressure rollers, thereby improving the pressure rollers' stability. The stability of operation ensures that the decorative paper base paper is evenly impregnated. The scraper in the scraper assembly can scrape off the excess impregnation liquid from the surface of the decorative paper base paper exiting the impregnation box, and the scraped impregnation liquid returns to the impregnation box. As the impregnation liquid in the impregnation box decreases, the height of the impregnation liquid gradually decreases, and there may be a situation where the decorative paper base paper cannot be fully impregnated. At this time, the servo motor can be controlled to drive the threaded rod to rotate, so that the slider moves upward, thereby moving the impregnation box upward, so as to shorten the distance between the pressure roller and the bottom of the impregnation box, thereby making full use of the remaining impregnation liquid. At the same time, the distance between the two scrapers can be adjusted appropriately to adapt to the change in the inclination of the decorative paper base paper at this time.

[0015] The beneficial effects of this utility model are that the height of the impregnation tank can be adjusted by the impregnation tank and the lifting mechanism to change the distance between the pressure roller and the bottom of the impregnation tank, so that the residual impregnation liquid in the impregnation tank can be fully utilized and raw materials can be saved; the distance between the two scrapers can be adjusted by the scraper assembly, so that it can be adapted to impregnated paper of different thicknesses, with a wide range of applications and strong practicality. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the scraper assembly of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the two scrapers of this utility model.

[0020] In the diagram: 1. Impregnation tank, 2. Support frame, 3. Guide roller, 4. Scraper assembly, 5. Fixing frame, 6. Scraper, 7. Through hole, 8. Guide groove, 9. First bolt positioning hole, 11. Second bolt positioning hole, 12. Pressure roller, 13. Top plate, 14. Bottom plate, 15. Servo motor, 16. Guide rod, 17. Threaded rod, 18. Slider, 19. Hanger, 20. Scraper. Detailed Implementation

[0021] The present invention will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the present invention and is not intended to limit it. Any modifications, equivalent substitutions, improvements, etc., made by those skilled in the art based on the embodiments of the present invention without inventive effort to obtain all other embodiments should be included within the protection scope of the present invention.

[0022] Example

[0023] like Figure 1-3 As shown, this utility model embodiment provides an impregnation device for decorative paper production, including an impregnation tank 1 and a lifting mechanism. The top of the impregnation tank 1 is open. Two support frames 2 are provided at the left and right ends of the top of the impregnation tank 1, and the top of each support frame 2 is rotatably connected to a guide roller 3. The two guide rollers 3 are at the same height. A scraper assembly 4 is provided on the right support frame 2. The scraper assembly 4 includes a fixed frame 5 and two scrapers 6. The fixed frame 5 is inclined. The bottom of the fixed frame 5 is fixedly connected to the support frame 2 on the corresponding side through a connecting rod. The fixed frame 5 is provided with a through hole 7 for decorative paper to pass through. Guide grooves 8 and several first bolt positioning holes 9 are provided on both sides of the through hole 7. The two scrapers 6 are arranged vertically opposite each other in the through hole 7, and the two ends of the two scrapers 6 are slidably connected to the inside of the two guide grooves 8. The two ends of the two scrapers 6 are provided with second bolt positioning holes 11. Two parallel pressure rollers 12 are provided inside the impregnation tank 1. The two pressure rollers 12 are at the same height, and the height of the two pressure rollers 12 is lower than the height of the two guide rollers 3.

[0024] The lifting mechanism is located outside the impregnation tank 1. The lifting mechanism includes a top plate 13, a bottom plate 14, a servo motor 15, a guide rod 16, a threaded rod 17, and two sliders 18. The top plate 13 and the bottom plate 14 are respectively located on the upper and lower sides of the impregnation tank 1. The servo motor 15 is located above the top plate 13. The guide rod 16 and the threaded rod 17 are respectively located on the left and right sides of the impregnation tank 1. The guide rod 16 and the threaded rod 17 do not interfere with the two guide rollers 3. The guide rod 16 is fixedly connected between the top plate 13 and the bottom plate 14. The threaded rod 17 is rotatably connected between the top plate 13 and the bottom plate 14 and is parallel to the guide rod 16. The top end of the threaded rod 17 passes through the top plate 13 and is connected to the output shaft of the servo motor 15. The guide rod 16 and the threaded rod 17 pass through the two sliders 18 respectively. The slider 18 on the right side is slidably connected to the threaded rod 17 through the nut pair of the threaded rod 17. The two sliders 18 are fixedly connected to the left and right ends of the impregnation tank 1 respectively.

[0025] In addition, each pressure roller 12 is rotatably connected to a hanger 19, and the top of the hanger 19 is fixed to the bottom surface of the top plate 13. Each pressure roller 12 is provided with a scraper 20 on its right side. The top of the scraper 20 is fixedly connected to the hanger 19, and the bottom of the scraper 20 abuts against the side of the pressure roller 12. The scraper 20 is used to scrape off excess impregnation liquid adhering to the surface of the pressure roller 12.

[0026] The working principle of this invention is as follows: the decorative paper base paper passes sequentially from left to right through two guide rollers 3 and two pressure rollers 12, and then passes between the two scrapers 6 of the scraper assembly 4. The decorative paper base paper will not interfere with the guide rod 16 and the threaded rod 17. The distance between the two scrapers 6 is then adjusted according to the thickness of the decorative paper base paper, and the scrapers 6 are fixed by passing fixing bolts through the first bolt positioning hole 9 and the second bolt positioning hole 11. The impregnation tank 1 is filled with impregnation liquid, and the height of the impregnation liquid should be such that it just submerges the bottom of the pressure roller 12 and the decorative paper base paper, without touching the scraper 20. During the movement of the decorative paper base paper, the pressure roller 12 rotates, and the scraper 20 can scrape off the excess impregnation liquid adhering to the surface of the pressure roller 12 to improve the paper's appearance. The stability of the high-pressure roller 12 ensures that the decorative paper base paper is evenly impregnated. The scraper 6 in the scraper assembly 4 can scrape off the excess impregnation liquid from the surface of the decorative paper base paper exiting the impregnation tank 1. The scraped-off impregnation liquid returns to the impregnation tank 1. As the impregnation liquid in the impregnation tank 1 is used up, the height of the impregnation liquid gradually decreases, and there may be a situation where the decorative paper base paper cannot be fully impregnated. At this time, the servo motor 15 can be controlled to drive the threaded rod 17 to rotate, so that the slider 18 moves up, thereby driving the impregnation tank 1 to move up, so as to shorten the distance between the pressure roller 12 and the bottom of the impregnation tank 1, thereby making full use of the remaining impregnation liquid. At the same time, the distance between the two scrapers 6 can also be adjusted appropriately to adapt to the change in the inclination of the decorative paper base paper at this time.

[0027] The embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An impregnation apparatus for decorative paper production, comprising an impregnation tank and a lifting mechanism, characterized in that: Two support frames are provided at the left and right ends of the top of the impregnation tank, and guide rollers are rotatably connected to the top of each support frame. A scraper assembly is provided on the right support frame. The scraper assembly includes a fixed frame and two scrapers. The fixed frame is inclined and its bottom is fixedly connected to the support frame on the corresponding side through a connecting rod. The fixed frame has a through hole for decorative paper to pass through. Guide grooves and several first bolt positioning holes are provided on both sides of the through hole. The two scrapers are positioned vertically opposite each other in the through hole, and the two ends of the two scrapers are slidably connected to the inside of the two guide grooves. Second bolt positioning holes are provided at both ends of the two scrapers. Two parallel pressure rollers are provided inside the impregnation tank. A lifting mechanism is provided outside the impregnation tank to drive the impregnation tank to move up and down.

2. The impregnation apparatus for decorative paper production according to claim 1, characterized in that: The lifting mechanism includes a top plate, a bottom plate, a servo motor, a guide rod, a threaded rod, and two sliders. The top plate and bottom plate are respectively located on the upper and lower sides of the immersion tank. The servo motor is located above the top plate. The guide rod and threaded rod are located on the left and right sides of the immersion tank, respectively. The guide rod is fixedly connected between the top plate and the bottom plate. The threaded rod is rotatably connected between the top plate and the bottom plate and is parallel to the guide rod. The top end of the threaded rod passes through the top plate and is connected to the output shaft of the servo motor. The guide rod and the threaded rod pass through the two sliders, and the slider on the right side is slidably connected to the threaded rod through the nut pair of the threaded rod. The two sliders are fixedly connected to the left and right ends of the immersion tank, respectively.

3. The impregnation apparatus for decorative paper production according to claim 2, characterized in that: The guide rod and threaded rod do not interfere with the two guide rollers.

4. The impregnation apparatus for decorative paper production according to claim 3, characterized in that: The two guide rollers are at the same height.

5. The impregnation apparatus for decorative paper production according to claim 4, characterized in that: The two pressure rollers are at the same height, and both pressure rollers are lower than the height of the two guide rollers.

6. The impregnation apparatus for decorative paper production according to claim 5, characterized in that: Each pressure roller is rotatably connected to a hanger, with the top of the hanger fixed to the bottom surface of the top plate. A scraper is provided on the right side of each pressure roller, with the top of the scraper fixedly connected to the hanger and the bottom of the scraper abutting against the side of the pressure roller.

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