Uniform-smearing gluing device for production of masking tape

Abstract

The utility model discloses a uniform-smearing gluing device for producing a masking tape, which belongs to the technical field of masking tape production equipment and comprises a gluing box, and a guide component is mounted in the gluing box. By designing the guide assembly and the cleaning assembly, in the gluing process, the primary finishing roller in the guide assembly can preliminarily and uniformly smear glue on the masking paper, and the reversing roller can change the conveying direction of the masking paper, so that the gluing surface of the masking paper faces downwards; the cleaning assembly is arranged on the back side of the masking paper, the situation that the back side of the masking paper is polluted due to the fact that glue is accumulated on the two sides of the masking paper can be prevented, at the moment, the glue is further scraped to be flat through a scraper in the cleaning assembly, the consistency and uniformity of the thickness of the glue are guaranteed, and in the scraping process, the glue flows to a collecting groove through the scraper by means of the gravity to be collected. Meanwhile, the heating plate can increase the surface temperature of the scraping plate, glue solidification is avoided, and the cleaning effect and the gluing effect of the device are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of masking paper production equipment, in particular to a glue coating device for producing masking paper tape with uniform coating. Background Technique

[0002] Masking paper tape is a roll-shaped adhesive tape made of masking paper and pressure-sensitive glue as the main raw materials, with pressure-sensitive adhesive coated on the masking paper and anti-sticking material coated on the other side. It has the characteristics of high temperature resistance, good resistance to chemical solvents, high adhesion, softness and conformability, and no residual glue left after re-tearing. During the production process of masking paper, a glue coating device is required to coat the glue on it.

[0003] The existing glue coating device for producing masking paper tape uses a scraper to ensure the consistency and uniformity of the glue coating thickness during use. For example, a coating machine with controllable glue coating thickness for masking paper with the patent number CNCN202221779386.7 uses a scraper to scrape the excess glue during the glue coating process. In the above method, during the scraping process, since the surface of the scraper will adhere to the glue and solidify over time, it will affect the flatness of the scraper, and ultimately affect the scraping effect of the glue. At the same time, the glue is scraped to both sides of the masking paper and then falls into the collection box by gravity for collection. Since there is more glue on both sides of the masking paper, the glue will seep into the surface of the masking paper, thereby contaminating the back of the masking paper and resulting in poor glue coating effect of the device. Therefore, there is an urgent need for a glue coating device for producing masking paper tape with uniform coating to solve the above problems. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a glue coating device for producing masking paper tape with uniform coating.

[0005] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0006] A glue coating device for producing masking paper tape with uniform coating, including a glue coating box, in which a guiding component is installed. The guiding component is composed of two groups of horizontally arranged guiding rollers, a preliminary finishing roller, a reversing roller and a carrying roller located below the middle between the guiding rollers. A cleaning component is installed at the bottom end inside the glue coating box. The cleaning component is composed of an electric push rod, a scraper, a heating plate and a collection trough.

[0007] Preferably, the guiding rollers are rotatably installed inside the glue coating box, and the preliminary finishing roller is rotatably installed inside the glue coating box.

[0008] Preferably, both the carrying roller and the reversing roller are rotatably installed inside the glue coating box, and the carrying roller, the reversing roller, the preliminary finishing roller and the guiding rollers are at different heights.

[0009] Preferably, the fixed part of the electric push rod is connected to the glue application box by bolts, the movable part of the electric push rod is connected to the scraper by screws, the scraper is inclined, the heating plate is built into the scraper by screws, and the material of the scraper is stainless steel.

[0010] Preferably, the collection tank is located below the scraper, the collection tank is movably placed in the glue application box, and a sealing cover is installed on one side wall of the glue application box at the position of the collection tank through a hinge.

[0011] Preferably, a glue storage tank is fixed on one side of the upper end of the glue application box, a glue guide pipe is led out from one side wall of the glue storage tank, a pump body is installed on the glue guide pipe, one end of the glue guide pipe is connected to a shunt pipe, the shunt pipe and the glue guide pipe form a T-shaped structure, and a plurality of groups of nozzles are arrayed and installed at the bottom end of the shunt pipe.

[0012] Preferably, a feeding cavity and a discharging cavity are formed on one side wall of the glue application box, the feeding cavity is located above, and the discharging cavity is located below.

[0013] The beneficial technical effects of the present utility model:

[0014] By designing the guiding component and the cleaning component, during the glue application process, the initial finishing roller in the guiding component can preliminarily smooth the glue on the masking paper, and the reversing roller can change the conveying direction of the masking paper, so that the glue application surface of the masking paper faces downward, which can prevent the back of the masking paper from being polluted due to glue accumulation on both sides of the masking paper. At this time, the scraper in the cleaning component is used to further smooth the glue, ensuring the consistency and uniformity of the glue thickness. During the scraping process, the glue will flow to the collection tank by its own gravity through the scraper for collection. At the same time, the heating plate will increase the surface temperature of the scraper, thereby avoiding glue solidification and ensuring the cleaning effect and glue application effect of the device. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of a glue application device for producing evenly coated masking paper tape according to the present utility model;

[0016] Figure 2 It is a schematic internal structure diagram of the glue application box in a preferred embodiment of a glue application device for producing evenly coated masking paper tape according to the present utility model;

[0017] Figure 3 It is a main sectional view of the glue application box in a preferred embodiment of a glue application device for producing evenly coated masking paper tape according to the present utility model;

[0018] Figure 4Schematic diagram of the internal structure of a squeegee in a preferred embodiment of a glue - applying device for producing masking tape with uniform coating according to the present utility model.

[0019] The description of the reference numerals is as follows:

[0020] 1. Glue - applying box; 2. Feeding cavity; 3. Discharging cavity; 4. Glue storage tank; 5. Glue guiding pipe; 6. Pump body; 7. Sealing cover; 8. Guiding assembly; 801. Guiding roller; 802. Initial finishing roller; 803. Reversing roller; 804. Carrying roller; 9. Cleaning assembly; 901. Electric push rod; 902. Squeegee; 903. Collection tank; 904. Heating plate; 10. Diverging pipe; 11. Nozzle. Detailed implementation manners

[0021] To make the technical solutions of the present utility model clearer and more definite for those skilled in the art, the present utility model will be further described in detail below in conjunction with embodiments and the accompanying drawings. However, the implementation manners of the present utility model are not limited thereto.

[0022] As Figures 1 - 4 shown, a glue - applying device for producing masking tape with uniform coating provided in this embodiment includes a glue - applying box 1. A guiding assembly 8 is installed inside the glue - applying box 1. The guiding assembly 8 is composed of two groups of horizontally arranged guiding rollers 801, an initial finishing roller 802 located below the middle between the guiding rollers 801, a reversing roller 803, and a carrying roller 804. A cleaning assembly 9 is installed at the bottom end inside the glue - applying box 1. The cleaning assembly 9 is composed of an electric push rod 901, a squeegee 902, a heating plate 904, and a collection tank 903.

[0023] The guiding rollers 801 are rotatably installed inside the glue - applying box 1, and the initial finishing roller 802 is rotatably installed inside the glue - applying box 1. The guiding rollers 801 guide the conveyance of the masking tape, and the initial finishing roller 802 can preliminarily smooth the glue on the masking tape.

[0024] The carrying roller 804 and the reversing roller 803 are both rotatably installed inside the glue - applying box 1. The carrying roller 804, the reversing roller 803, the initial finishing roller 802, and the guiding rollers 801 are at different heights. The reversing roller 803 can change the conveyance direction of the masking tape, so that the glue - applying surface of the masking tape faces downwards, which can prevent the back of the masking tape from being contaminated due to glue accumulation on both sides of the masking tape. The carrying roller 804 facilitates the smooth output of the masking tape from the glue - applying box 1.

[0025] The fixed part of the electric push rod 901 is connected to the glue coating box 1 by bolts, and the movable part of the electric push rod 901 is connected to the scraper 902 by screws. The scraper 902 is inclined. The heating plate 904 is built into the scraper 902 by screws. The material of the scraper 902 is stainless steel. The electric push rod 901 can adjust the position of the scraper 902, and the scraper 902 can scrape the surface of the glue flat, thereby ensuring the consistency of the glue thickness. The heating plate 904 will increase the surface temperature of the scraper 902, thereby preventing the glue from solidifying.

[0026] The collection tank 903 is located below the scraper 902. The collection tank 903 is movably placed in the glue coating box 1. A sealing cover 7 is installed on one side wall of the glue coating box 1 at the position of the collection tank 903 through a hinge. The scraped glue flows into the collection tank 903 by gravity for collection. Opening the sealing cover 7 facilitates the replacement of the collection tank 903.

[0027] One side of the upper end of the glue coating box 1 is fixed with a glue storage tank 4. A glue guide pipe 5 is led out from one side wall of the glue storage tank 4. A pump body 6 is installed on the glue guide pipe 5. One end of the glue guide pipe 5 is connected with a shunt pipe 10. The shunt pipe 10 and the glue guide pipe 5 form a T-shaped structure. A plurality of groups of nozzles 11 are arrayed at the bottom end of the shunt pipe 10. The pump body 6 extracts the glue in the glue storage tank 4 through the glue guide pipe 5, and the extracted glue is sprayed onto the masking paper through the nozzles 11 on the shunt pipe 10, so as to realize the glue coating of the masking paper.

[0028] An inlet chamber 2 and an outlet chamber 3 are opened on one side wall of the glue coating box 1. The inlet chamber 2 is located above, and the outlet chamber 3 is located below. The masking paper enters the glue coating box 1 through the inlet chamber 2 and is sent out through the outlet chamber 3.

[0029] The working principle of this device: Install the device on the production line of masking paper. During the glue coating process, the masking paper enters the glue coating box 1 through the inlet chamber 2. At this time, the guiding roller 801 guides it. During the movement of the masking paper, the pump body 6 extracts the glue in the glue storage tank 4 through the glue guide pipe 5, and the extracted glue is sprayed onto the masking paper through the nozzles 11 on the shunt pipe 10, so as to realize the glue coating of the masking paper. Then, the initial finishing roller 802 in the guiding assembly 8 can preliminarily smooth the glue on the masking paper, and the reversing roller 803 can change the conveying direction of the masking paper, so that the glue-coated surface of the masking paper faces down, which can prevent the back of the masking paper from being contaminated due to the accumulation of glue on both sides of the masking paper. At this time, the scraper 902 in the cleaning assembly 9 further scrapes the glue flat to ensure the consistency and uniformity of the glue thickness. During the scraping process, the glue will flow to the collection tank 903 through the scraper 902 by its own gravity for collection. At the same time, the heating plate 904 will increase the surface temperature of the scraper 902, thereby preventing the glue from solidifying, ensuring the cleaning effect and glue coating effect of the device. Finally, the smoothed masking paper is output from the glue coating box 1 through the carrying roller 804 and the outlet chamber 3.

[0030] The above are only further embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the scope disclosed by the present utility model, according to the technical solution and concept of the present utility model, makes equivalent substitutions or changes, and all belong to the protection scope of the present utility model.

Claims

1. A gluing device for producing masking tape with uniform gluing, characterized in that: The invention comprises a glue coating box (1), wherein a guide assembly (8) is installed in the glue coating box (1), wherein the guide assembly (8) is composed of two groups of horizontally arranged guide rollers (801), a preliminary adjustment roller (802) located in the middle and lower part between the guide rollers (801), a reversing roller (803) and a bearing roller (804), and a cleaning assembly (9) is installed at the bottom end of the glue coating box (1), wherein the cleaning assembly (9) is composed of an electric push rod (901), a scraper (902), a heating plate (904) and a collecting tank (903).

2. The gluing device for producing masking tape with uniform coating according to claim 1, characterized in that: The guide roller (801) is rotatably mounted in the glue coating box (1), and the preliminary adjustment roller (802) is rotatably mounted in the glue coating box (1).

3. The gluing device for producing masking tape with uniform coating according to claim 2, characterized in that: The bearing roller (804) and the reversing roller (803) are both rotatably mounted in the glue coating box (1); the bearing roller (804), the reversing roller (803), the preliminary adjustment roller (802) and the guide roller (801) are all at different heights.

4. The gluing device for producing masking tape with uniform coating according to claim 3, characterized in that: The fixed part of the electric push rod (901) is connected to the glue coating box (1) by bolts, and the movable part of the electric push rod (901) is connected to the scraper (902) by screws. The scraper (902) is arranged at an angle, and the heating plate (904) is built into the scraper (902) by screws. The scraper (902) is made of stainless steel.

5. The gluing device for producing masking tape with uniform coating according to claim 4, characterized in that: The collecting trough (903) is located below the scraper (902), and the collecting trough (903) is movably placed in the glue coating box (1). A sealing cover (7) is installed at the position of the collecting trough (903) on a side wall of the glue coating box (1) through a hinge.

6. The gluing device for producing masking tape with uniform coating according to claim 5, characterized in that: A glue storage box (4) is fixed to one side of the upper end of the glue coating box (1), a glue guide tube (5) is led out from a side wall of the glue storage box (4), a pump body (6) is installed on the glue guide tube (5), one end of the glue guide tube (5) is connected to a diverter tube (10), the diverter tube (10) and the glue guide tube (5) form a T-shaped structure, and a plurality of nozzles (11) are installed in an array at the bottom end of the diverter tube (10).

7. The gluing device for producing masking tape with uniform coating according to claim 6, characterized in that: A feed cavity (2) and a discharge cavity (3) are provided on one side wall of the glue coating box (1), wherein the feed cavity (2) is located at the top and the discharge cavity (3) is located at the bottom.

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