Uniform coating device for waterproof roll coating layer

Abstract

The utility model discloses a uniform coating device for a waterproof roll coating layer, and relates to the field of waterproof rolls. The pressure equalizing roller comprises a base, a side plate and a pressure equalizing roller body, a mounting groove of a U-shaped structure is fixed to the inner side of the side plate, and the outer surface of the pressure equalizing roller body is sleeved with a rubber layer; a connecting pipe is installed at the top end of the suction pipe, a paint pump used for suction is installed on the connecting pipe, and the discharging end of the paint pump faces the material guide plate; due to the arrangement of the suction pipe and the suction nozzle, in the rotating process of the pressure equalizing roller, coating at the front end of the pressure equalizing roller is more and more, at the moment, a worker opens the coating pump, negative pressure is generated at the suction nozzle, redundant coating is adsorbed, and the redundant coating finally flows back to the dip dyeing pool. The influence on the uniformity of the coating above the base cloth due to excessive coating accumulation at the front end of the pressure equalizing roller is avoided.

Description

Technical Field

[0001] The utility model relates to the field of waterproof coiled materials, in particular to a device for evenly coating a coating layer of a waterproof coiled material. Background Technique

[0002] Waterproof coiled materials are mainly used in building walls, roofs, tunnels, roads, landfills, etc., to play a role in resisting external rainwater and groundwater seepage. They are a flexible building material product that can be curled into a roll shape. As a leak-free connection between the engineering foundation and the building, they are the first barrier for the overall project waterproofing and play a crucial role in the entire project. Waterproof coiled materials mainly consist of a base cloth, a waterproof coating layer, and an outer film. The waterproof effect of waterproof coiled materials mainly depends on the waterproof coating layer for waterproofing.

[0003] For current waterproof coiled materials, after dipping the base cloth into the coating pool, due to the viscosity of the coating, too much coating adheres to the base cloth, and the coating on the base cloth needs to be evenly pressed to make the coating on its surface uniform. The patent with the application number 202322052423.5 discloses a technique for even pressing through a coating pressing and even structure. This method uses two rollers for extrusion. After extrusion, coating adheres to the roller shafts, and the coating between the upper roller shaft and the waterproof coiled material accumulates more and more. The coating in the middle cannot flow back, resulting in uneven coating on the upper layer of the base cloth. At the same time, due to the viscosity of the coating, the coating on the surface of the lower roller shaft will fall back under the action of gravity. However, due to the rotation characteristics of the roller shaft, some coating that has not fallen back adheres to the base cloth again after rotation. Therefore, the roller shafts used for even pressing need to be further designed to improve their even pressing effect. Summary of the Utility Model

[0004] Based on this, the purpose of the present utility model is to provide a device for evenly coating a coating layer of a waterproof coiled material to solve the technical problem of poor material evenness of the coating pressing and even structure.

[0005] To achieve the above purpose, the present utility model provides the following technical solution: A device for evenly coating a coating layer of a waterproof coiled material, including a base, side plates, and an even pressing roller. A U-shaped installation groove is fixed inside the side plates, and a rubber layer is sleeved on the outer surface of the even pressing roller;

[0006] A suction pipe, a connecting pipe is installed at the top of the suction pipe, and a coating pump for suction is installed on the connecting pipe. The discharge end of the coating pump faces the material guiding plate; the end of the suction pipe is provided with a flat suction nozzle;

[0007] A scraping plate, blocks are defined at both ends of the scraping plate, and the blocks are clamped on the inclined installation groove. The scraping plate is inclined, and the scraping plate is located on the material guiding plate.

[0008] By adopting the above technical solutions, the rubber layer sleeved on the outer surface of the pressure equalizing roller increases the softness and elasticity of the roller surface, can better adapt to the minute changes on the surface of the coil during the extrusion process, further improves the uniformity of the coating, effectively removes the excess coating on the surface of the coil, and makes the coating distribution more uniform.

[0009] Furthermore, vertical side plates are fixed on both sides of the top of the base. An immersion tank is installed on the top of the base, and the immersion tank is filled with coating. An immersion roller is installed in the immersion tank.

[0010] By adopting the above technical solutions, the stability of the device is enhanced. The immersion tank enables the coil to be fully wetted with the coating when passing through the immersion tank, providing a good coating basis for the subsequent treatment by the pressure equalizing roller.

[0011] Furthermore, a first guiding roller for guiding the direction is installed at the front end between the two side plates, and a second guiding roller is provided at the central position between the two side plates. The first guiding roller and the second guiding roller are located above both sides of the immersion tank.

[0012] By adopting the above technical solutions, the main function of the first guiding roller is to guide the direction of the waterproof coil before entering the immersion tank, ensuring that the coil can maintain a stable running track before entering the immersion tank, avoiding the situation of the coil deviating or knotting, thereby improving the production efficiency and product quality.

[0013] Furthermore, a guide plate inclinedly arranged is fixed on the side of the immersion tank away from the first guiding roller. The guide plate is located below the second guiding roller and the pressure equalizing roller.

[0014] By adopting the above technical solutions, the coating that drips or flows out excessively from the coil can smoothly slide along the guide plate and flow back into the immersion tank, realizing the recovery and reuse of the coating. This not only reduces the waste of the coating but also lowers the production cost, meeting the concept of green production.

[0015] Furthermore, there are two pressure equalizing rollers. The two pressure equalizing rollers are located in the same vertical plane, and the waterproof coil passes through between the two pressure equalizing rollers.

[0016] By adopting the above technical solutions, it is ensured that the waterproof coil is subjected to uniform pressure from two directions when passing through. This double-roller structure can more effectively remove the excess coating on the surface of the coil and at the same time make the coating more evenly distributed on the coil. This uniformity not only improves the waterproof performance of the waterproof coil but also makes its appearance more beautiful.

[0017] Furthermore, the gap between the scraping plate and the lower pressure equalizing roller is 1 - 3 mm.

[0018] Further, the suction nozzle is located at the included angle between the upper equalizing roller and the waterproof coiled material, and is used to suck the excess coating after extrusion.

[0019] In summary, the main beneficial effects of the present utility model are as follows:

[0020] 1. By setting the suction pipe and the suction nozzle in the present utility model, during the rotation of the equalizing roller, the coating at the front end of the equalizing roller becomes more and more. At this time, the staff turns on the coating pump, so that negative pressure is generated at the suction nozzle to adsorb the excess coating, and finally it flows back to the immersion tank, avoiding the accumulation of too much coating at the front end of the equalizing roller, which affects the uniformity of the coating above the base fabric. A scraper is provided at the bottom of the lower equalizing roller. When the excess coating below flows down with the equalizing roller, under the action of the scraper, the coating is guided, so that the coating falls back, making the coating on the surface of the equalizing roller uniform, and effectively maintaining the uniformity of the coating at the contact position between the equalizing roller and the waterproof coiled material;

[0021] 2. By providing a rubber layer on the outer surface of the equalizing roller in the present utility model, the rubber layer is sleeved on the equalizing roller. Since the rubber layer has certain softness and elasticity, in cooperation with the suction pipe and the scraper, the uniformity of the coating on both sides of the base fabric can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic cross-sectional structure diagram of the present utility model;

[0023] Figure 2 is of the present utility model Figure 1 enlarged schematic structure diagram of A therein;

[0024] Figure 3 is a schematic scraper structure diagram of the present utility model.

[0025] In the figure: 1. Base; 2. Immersion tank; 3. Material guiding plate; 4. First guiding roller; 5. Immersion roller; 6. Second guiding roller; 7. Suction pipe; 71. Suction nozzle; 72. Connecting pipe; 8. Scraper; 81. Block; 9. Side plate; 91. Installation groove; 10. Equalizing roller; 11. Rubber layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] The following describes the embodiments according to the overall structure of the present utility model.

[0030] Embodiment 1:

[0031] A device for evenly coating a waterproof coiled material coating layer, as Figures 1-3 shown, includes a base 1, side plates 9 and a pressure equalizing roller 10. An installation groove 91 with a U-shaped structure is fixed inside the side plate 9, and a rubber layer 11 is sleeved on the outer surface of the pressure equalizing roller 10;

[0032] A suction pipe 7, a connecting pipe 72 is installed at the top end of the suction pipe 7, and a coating pump for suction is installed on the connecting pipe 72. The discharge end of the coating pump faces the guide plate 3; a flat suction nozzle 71 is provided at the end of the suction pipe 7, and the suction nozzle 71 is located at the included angle between the upper pressure equalizing roller 10 and the waterproof coiled material, and is used for sucking the excess coating after extrusion. The suction pipe 7 and the suction nozzle 71 cleverly solve the problem of coating accumulation at the front end of the pressure equalizing roller. When there is too much coating, the staff can turn on the coating pump to generate negative pressure at the suction nozzle, quickly adsorb and recover the excess coating, avoiding its impact on the uniformity of the coating, not only improving work efficiency but also reducing the waste of coating;

[0033] A scraper 8, clamping blocks 81 are provided at both ends of the scraper 8, and the clamping blocks 81 are clamped on the inclined installation groove 91. The scraper 8 is inclined and is located on the guide plate 3, and can effectively guide the excess coating flowing down from the pressure equalizing roller, so that it can fall back and be collected smoothly.

[0034] Please refer to Figure 1, on both sides of the top of the base 1, vertical side plates 9 are fixed. An immersion tank 2 is installed on the top of the base 1, and paint is injected into the immersion tank 2. An immersion roller 5 is installed in the immersion tank 2, and the immersion roller 5 further enhances the immersion effect of the paint. The immersion roller can help the coil distribute the paint more evenly during the immersion process, prevent uneven patches or stripes from forming on the surface of the coil. At the same time, the rotation of the immersion roller can also help remove the excess paint on the surface of the coil, preparing for the subsequent treatment of the equalizing roller.

[0035] Please refer to Figure 1 , a first guiding roller 4 for guiding the direction is installed at the front end between the two side plates 9. A second guiding roller 6 is provided at the central position between the two side plates 9. The first guiding roller 4 and the second guiding roller 6 are located above both sides of the immersion tank 2, which helps to keep the coil running stably between the immersion tank and the equalizing roller 10, preventing the coil from shifting or twisting during movement, thus ensuring the uniformity of the subsequent paint treatment.

[0036] Embodiment 2:

[0037] Please refer to Figure 1 , Figure 2 , a guiding plate 3 is fixed on the side of the immersion tank 2 away from the first guiding roller 4 and is inclined. The guiding plate 3 is located below the second guiding roller 6 and the equalizing roller 10. The gap between the scraping plate 8 and the lower equalizing roller 10 is 1 - 3 mm. When the coil passes through the treatment of the equalizing roller 10, the paint on its surface will become more uniform. At this time, if there is excess paint dripping from the coil, the guiding plate 3 can quickly guide it back to the immersion tank 2, avoiding the accumulation of this paint below the coil or in the working area, thus further optimizing the paint distribution on the surface of the coil.

[0038] Please refer to Figure 1 , there are two equalizing rollers 10. The two equalizing rollers 10 are located in the same vertical plane. The waterproof coil passes through between the two equalizing rollers 10. When the waterproof coil passes through between the two equalizing rollers 10, the combined action of the frictional force and pressure between its surface and the roller surface helps the paint better penetrate into the fibers or pores of the coil. This enhanced penetration improves the adhesion and durability of the paint, making the service life of the waterproof coil longer.

[0039] In this embodiment, the paint pump can adjust its driving force, thereby changing the suction force of the suction nozzle.

[0040] In some other embodiments, a roller shaft material with a smooth surface, wear resistance, and corrosion resistance can be selected to make the equalizing roller, such as stainless steel or special alloy, to reduce the adhesion of the paint on the surface of the roller shaft.

[0041] In some other embodiments, the pressure equalizing roller is mounted on a liftable mechanism, allowing the gap between the roller shafts to be adjusted according to the viscosity of the coating and the thickness of the base fabric to achieve the best pressure equalizing effect.

[0042] The implementation principle of this embodiment is as follows: First, install the coating pump on the side plate 9, and successively install the connecting pipe 72, the suction pipe 7 and the suction nozzle 71. Then, insert the scraper 8 into the installation groove 91 through the clamping block 81. Start the traction device of the waterproof coiled material to make the waterproof coiled material move. After the waterproof coiled material is immersed in the immersion tank 2, it will be guided by the second guide roller 6 and continue to move forward. When it moves to the two pressure equalizing rollers 10, since the gap between the two pressure equalizing rollers 10 is fixed, the coating on both sides of the waterproof coiled material will be extruded to make it more uniform. As the extrusion continues, too much coating will accumulate at the front end of the surface of the waterproof coiled material. The staff turns on the coating pump to generate negative pressure at the suction nozzle 71 to adsorb the excess coating and finally return it to the immersion tank 2 to avoid the excessive accumulation of coating at the front end of the pressure equalizing roller 10 from affecting the uniformity of the coating above the base fabric. There is a scraper 8 at the bottom of the lower pressure equalizing roller 10. When the excess coating below flows down along the pressure equalizing roller 10, under the action of the scraper 8, the coating is guided to make the coating fall back, so that the coating on the surface of the pressure equalizing roller 10 is uniform.

[0043] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A device for uniformly coating a coating layer on a waterproof coiled material, characterized in that: It comprises a base (1), a side plate (9) and a pressure equalizing roller (10), wherein a U-shaped mounting groove (91) is fixed on the inner side of the side plate (9), and a rubber layer (11) is provided on the outer surface of the pressure equalizing roller (10); A suction pipe (7), wherein a connecting pipe (72) is installed at the top end of the suction pipe (7), a paint pump for suction is installed on the connecting pipe (72), and the discharge end of the paint pump faces the guide plate (3); a flat suction nozzle (71) is provided at the end of the suction pipe (7); A scraper (8), wherein both ends of the scraper (8) are provided with clamping blocks (81), wherein the clamping blocks (81) are clamped on an obliquely arranged mounting groove (91), and the scraper (8) is arranged obliquely, and the scraper (8) is located on the material guide plate (3).

2. The device for uniformly coating the coating layer of waterproof coiled material according to claim 1, characterized in that: Vertical side panels (9) are fixed on both sides of the top of the base (1), a dyeing pool (2) is installed on the top of the base (1), and paint is injected into the dyeing pool (2), and a dyeing roller (5) is installed in the dyeing pool (2).

3. The device for uniformly coating the coating layer of waterproof coiled material according to claim 1, characterized in that: A first guide roller (4) for guiding the direction is installed at the front end between the two side plates (9), and a second guide roller (6) is provided at the center position between the two side plates (9). The first guide roller (4) and the second guide roller (6) are located above both sides of the dyeing tank (2).

4. The device for uniformly coating the coating layer of waterproof coiled material according to claim 2, characterized in that: A material guide plate (3) arranged obliquely is fixed on the side of the dyeing tank (2) away from the first guide roller (4), and the material guide plate (3) is located below the second guide roller (6) and the equalizing roller (10).

5. The device for uniformly coating the coating layer of waterproof coiled material according to claim 1, characterized in that: Two equalizing rollers (10) are provided, the two equalizing rollers (10) are located in the same vertical plane, and the waterproof coiled material passes between the two equalizing rollers (10).

6. The device for uniformly coating the coating layer of waterproof coiled material according to claim 1, characterized in that: The gap between the scraper (8) and the equalizing roller (10) located below is 1-3 mm.

7. The device for uniformly coating the coating layer of waterproof coiled material according to claim 1, characterized in that: The suction nozzle (71) is located at the angle between the upper equalizing roller (10) and the waterproof coiled material, and is used to suck out excess paint after squeezing.

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