Uniform coating assembly of coating machine

Abstract

The utility model discloses a uniform coating component of a coating machine, which comprises front and back symmetrical frames, a liquid storage tank, a metering and homogenizing component and a heating component are arranged between the two frames, and a discharging roller, a first guide roller, a second guide roller and a winding roller are rotatably connected between the two frames. A transmission assembly fixedly connected with the frame is arranged at the front end of the metering and refining assembly, the metering and refining assembly comprises fixing seats which are symmetrically arranged front and back, the fixing seats are fixedly connected with the frame, sliding blocks are symmetrically arranged at the upper end of the frame in a sliding mode, and metering and refining rollers are rotationally connected between every two sliding blocks; scrapers fixed to the sliding blocks are arranged on the outer sides of the metering and homogenizing rollers respectively, gears are fixed to the front ends of the metering and homogenizing rollers respectively, the upper ends of the fixing bases are rotationally connected with double-end reverse screws respectively, the two metering and homogenizing rollers clamp and homogenize a film, coating liquid on the film is extruded and homogenized, and the coating liquid on the film is uniformly mixed. And the thickness of the coating liquid adhered to each part of the film is ensured to be consistent, and the surface of the coated film is ensured to be smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of double-sided coating, in particular to a uniform coating component of a coating machine. Background Art

[0002] Coating machines are mainly used for surface coating production of films, paper, etc. This machine coats a layer of glue, paint or ink with specific functions on the rolled substrate, and then rewinds it after drying. The coating method is to apply paste polymers, molten polymers or polymer solutions on paper, cloth, and plastic films to obtain composite materials (films).

[0003] However, the existing double-sided coating device may have the following problems when in use:

[0004] 1. Immerse the entire film part into the coating liquid to pick up the coating liquid, and then use the material leveling component to level the material. The existing material leveling component is two material leveling rollers arranged on both sides of the film to roll and level the material on the surface of the film. In actual use, the coating liquid adheres to the material leveling roller, and the other side of the material leveling roller in contact with the film has no resistance, which affects the effect of leveling.

[0005] 2. Due to the different uses of the film, the thickness of the coating liquid on the film surface is also different. Since the existing material-leveling roller has no resistance on the other side of the film, the material-leveling device cannot control the thickness of the coating liquid on the film surface, which affects the use effect of the film. Utility Model Content

[0006] The purpose of the utility model is to provide a uniform coating component of a coating machine, which solves the above-mentioned problems in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a uniform coating assembly of a coating machine, comprising frames symmetrically arranged front and back, a liquid storage tank, a metering and scrambling assembly and a heating assembly are arranged between the two frames, a discharge roller, a first guide roller, a second guide roller and a winding roller are rotatably connected between the two frames, and a transmission assembly fixedly connected to the frame is arranged at the front end of the metering and scrambling assembly;

[0008] The metering and sizing assembly includes a fixed seat symmetrically arranged front and back, the fixed seat is fixedly connected to the frame, the upper end of the frame is symmetrically slid with sliding blocks, the sliding blocks are rotatably connected with metering and sizing rollers, the outer sides of the metering and sizing rollers are respectively provided with scrapers fixed to the sliding blocks, the front ends of the metering and sizing rollers are respectively fixed with gears, the upper ends of the fixed seats are rotatably connected with double-headed reverse screws, the double-headed reverse screws are meshed with the sliding blocks, one ends of the two double-headed reverse screws are respectively fixed with turbines, the two turbines are respectively meshed with the same worm, one end of the worm is rotatably connected to the frame, the other end of the worm passes through the frame and is connected to a second servo motor, and the second servo motor is fixedly connected to the frame.

[0009] Preferably, the transmission assembly includes a fixed frame fixedly connected to the frame, a cylinder is fixed to the upper end of the fixed frame, the telescopic end of the cylinder is connected to a sliding frame slidably connected to the fixed frame, the upper end of the sliding frame is symmetrically rotatably connected to a transmission wheel, the two transmission wheels are meshed with each other, and the two transmission wheels are meshed with the two double-headed reverse screws one by one.

[0010] Preferably, a T-shaped block is provided at the lower end of the sliding block, a T-shaped slot is provided at the upper end of the fixing seat, and the T-shaped block of the sliding block is slidably connected in the T-shaped slot of the fixing seat.

[0011] Preferably, two heating components are symmetrically arranged, and the heating component comprises a fixed frame fixedly connected to the frame, a plurality of heating wires are fixed to one side of the fixed frame, and a plurality of fans are fixed to the other side of the fixed frame.

[0012] Preferably, the liquid storage tank is located directly below the metering and sizing assembly, and a dipping roller is rotatably connected to the interior of the liquid storage tank.

[0013] Preferably, one end of the winding roller is rotatably connected to the frame, and the other end of the winding roller passes through the frame and is connected to a first servo motor, and the first servo motor is fixedly connected to the frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The film is clamped and leveled by two metering and leveling rollers, and the coating liquid on the film is squeezed and leveled to ensure that the thickness of the coating liquid adhered to each part of the film is consistent, and the surface of the film after coating is ensured to be smooth. A scraper is set on the metering and leveling roller to scrape off the coating liquid adhered to the scraper to prevent the coating liquid from adhering to the metering and leveling roller and affecting the leveling effect of the metering and leveling roller.

[0016] 2. The double-headed reverse screw is driven to rotate by the second servo motor and the worm, thereby adjusting the distance between the two metering and sizing rollers. When the distance between the metering and sizing rollers is close, the film is clamped to squeeze a large amount of coating liquid on the film surface. At this time, there is less coating liquid on the film surface, and the thickness of the coating liquid after drying is thinner. When the distance between the metering and sizing rollers is far, the film is clamped to a lesser extent, and a small amount of coating liquid on the film surface is squeezed. At this time, there is more coating liquid on the film surface, and the thickness of the coating liquid after drying is thicker. At the same time, the turbine is connected to the worm to achieve a self-locking effect to prevent the turbine from driving the worm to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial cross-sectional schematic diagram of the utility model;

[0019] Figure 3 This is an overall schematic diagram of the metering and sizing component of the utility model;

[0020] Figure 4 This is an overall schematic diagram of the metering and sizing roller of the utility model;

[0021] Figure 5 It is an overall schematic diagram of the heating component of the utility model;

[0022] Figure 6 It is an overall cross-sectional schematic diagram of the utility model.

[0023] Explanations in the figure: 1. Frame; 2. Liquid storage tank; 3. Metering and material leveling assembly; 4. Heating assembly; 5. Transmission assembly; 101. Feeding roller; 102. First guide roller; 103. Second guide roller; 104. Winding roller; 105. First servo motor; 201. Dipping roller; 301. Fixed seat; 302. Sliding block; 303. Double-headed reverse screw; 304. Metering and material leveling roller; 305. Scraper; 306. Gear; 307. Turbine; 308. Worm; 309. Second servo motor; 401. Fixed frame; 402. Heating wire; 403. Fan; 501. Cylinder; 502. Fixed frame; 503. Sliding frame; 504. Transmission wheel. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] See also Figure 1 , Figure 2 and Figure 5A uniform coating component of a coating machine includes a frame 1 symmetrically arranged front and back, a liquid storage tank 2, a metering and scrambling component 3 and a heating component 4 are arranged between the two frames 1, the metering and scrambling component 3 scrambles the coating liquid adhered to the film, so that the coating liquid on the surface of the film is evenly distributed on the surface of the film, to prevent the different amounts of coating liquid on the surface of the film, resulting in the surface of the final finished film being not flat enough, causing the finished film to be directly scrapped or affecting the use effect, the liquid storage tank 2 is located directly below the metering and scrambling component 3, and the liquid storage tank 2 is rotatably connected to a dipping roller 201 inside, so The liquid storage tank 2 is filled with coating liquid, and the film is guided by the dipping roller 201 so that the film enters the coating liquid in the liquid storage tank 2 to pick up the coating liquid, ensuring that the surface of the film can pick up the coating liquid, and preventing the situation where part of the film does not pick up the coating liquid. The heating components 4 are symmetrically arranged with two, and the heating components 4 include a fixed frame 401 fixedly connected to the frame 1, and a plurality of heating wires 402 are fixed on one side of the fixed frame 401, and a plurality of fans 403 are fixed on the other side of the fixed frame 401. The heating wires 402 of the heating component 4 work The fan 403 generates heat while the fan 403 generates wind. The fan 403 blows the heat generated by the heating wire 402 toward the film, so that the coating liquid on the surface of the film is dried and solidified, and the coating liquid is fixed on the film. A feeding roller 101, a first guide roller 102, a second guide roller 103 and a winding roller 104 are rotatably connected between the two frames 1. The feeding roller 101 is used to fix the film roll for easy unloading. The first guide roller 102 and the second guide roller 103 guide the film to prevent the film from contacting with other places of the device, causing film wear or affecting In order to achieve the coating effect of the film, the front end of the metering and sizing component 3 is provided with a transmission component 5 fixedly connected to the frame 1, and the transmission component 5 is used for the transmission of the metering and sizing component 3 to ensure that the metering and sizing component 3 performs normal material sizing. One end of the winding roller 104 is rotatably connected to the frame 1, and the other end of the winding roller 104 passes through the frame 1 and is connected to a first servo motor 105, which is fixedly connected to the frame 1. The first servo motor 105 drives the winding roller 104 to rotate, and the winding roller 104 winds up the finished film to achieve the collection effect.

[0026] See also Figure 2 , Figure 3 and Figure 4The metering and scrambling assembly 3 includes a fixed seat 301 symmetrically arranged front and back, the fixed seat 301 is fixedly connected to the frame 1, and the upper end of the frame 1 is symmetrically slidably provided with sliding blocks 302, the fixed seat 301 is slidably connected with the sliding blocks 302, so that the sliding blocks 302 can drive the metering and scrambling rollers 304 to move, thereby controlling the distance between the two metering and scrambling rollers 304, the upper end of the fixed seat 301 is provided with a T-shaped slot, the lower end of the sliding block 302 is provided with a T-shaped block, the T-shaped block of the sliding block 302 is slidably connected in the T-shaped slot of the fixed seat 301, the T-shaped slot at the upper end of the fixed seat 301 is integrally formed with the fixed seat 301, and the T-shaped block of the sliding block 302 is integrally formed with the sliding block 302, adopting a T-shaped The fixed seat 301 and the sliding block 302 are connected by a snap-fitting manner to prevent the sliding block 302 from detaching from the fixed seat 301, and at the same time ensure that the sliding block 302 slides in the fixed seat 301. The sliding blocks 302 are rotatably connected to metering and leveling rollers 304 in pairs, and the outer sides of the metering and leveling rollers 304 are respectively provided with scrapers 305 fixed to the sliding blocks 302. The two metering and leveling rollers 304 clamp the film and level the material, squeeze the coating liquid on the film to level the material, ensure that the thickness of the coating liquid adhered to each part of the film is consistent, and ensure that the surface of the film after coating is flat. By arranging the scraper 305 on the metering and leveling roller 304, the coating liquid adhered to the scraper 305 is scraped off, preventing the coating liquid from adhering to the metering and leveling roller 304 and affecting the metering and leveling The material leveling effect of the material roller 304 is achieved by fixing a gear 306 at the front end of the metering material leveling roller 304. The gear 306 is used to mesh with the transmission component 5, so that the rotation directions of the two sliding blocks 302 are opposite, so that the film can pass through the metering material leveling component 3 normally. The upper end of the fixed seat 301 is rotatably connected with a double-headed reverse screw 303, which meshes with the sliding block 302. The rotation of the double-headed reverse screw 303 drives the sliding block 302 to move, so that the sliding blocks 302 are close to or away from each other, and the distance between the two metering material leveling rollers 304 is further adjusted. One end of the two double-headed reverse screws 303 is fixed with a turbine 307, and the two turbines 307 are respectively meshed with the same worm 30 8. One end of the worm 308 is rotatably connected to the frame 1, and the other end of the worm 308 penetrates the frame 1 and is connected to a second servo motor 309. The second servo motor 309 is fixedly connected to the frame 1. The second servo motor 309 and the worm 308 drive the double-headed reverse screw 303 to rotate, thereby adjusting the distance between the two metering and sluicing rollers 304. When the distance between the metering and sluicing rollers 304 is close, the film is clamped to squeeze a large amount of coating liquid on the surface of the film. At this time, the coating liquid on the surface of the film is less, and the thickness of the coating liquid after drying is thinner. When the distance between the metering and sluicing rollers 304 is far, the degree of clamping the film is small, and a small amount of coating liquid on the surface of the film is squeezed. At this time, the coating liquid on the surface of the film is more.The coating liquid after drying is thicker, and at the same time, it is connected to the worm 308 through the turbine 307, achieving a self-locking effect, preventing the turbine 307 from driving the worm 308 to rotate.

[0027] See also Figure 5 and Figure 6 The transmission assembly 5 includes a fixed frame 502 fixedly connected to the frame 1, a cylinder 501 is fixed to the upper end of the fixed frame 502, and a sliding frame 503 slidably connected to the fixed frame 502 is connected to the telescopic end of the cylinder 501. The fixed frame 502 plays a guiding and limiting role for the sliding frame 503, so that the sliding frame 503 can only move up and down, preventing the sliding frame 503 from rotating so that the transmission wheel 504 cannot mesh with the gear 306, affecting the transmission between the two metering and shaving rollers 304, and the upper end of the sliding frame 503 rotates symmetrically It is dynamically connected with a transmission wheel 504, and the two transmission wheels 504 are meshed with each other. The two transmission wheels 504 are meshed with the two double-headed reverse screws 303 one by one. When adjusting the distance between the two metering and sizing rollers 304, the cylinder 501 is retracted so that the transmission wheel 504 is no longer meshed with the gear 306. After the distance between the two metering and sizing rollers 304 is adjusted, the cylinder 501 is extended so that the transmission wheel 504 is meshed with the gear 306 again, ensuring that the two metering and sizing rollers 304 can still be driven by the transmission wheel 504 after adjustment.

[0028] When the utility model is used:

[0029] First, fix the film roll on the unwinding roller 101, pass the film through the first guide roller 102, the dipping roller 201, between the two metering and leveling rollers 304, the second guide roller 103, and the winding roller 104 in sequence, add the coating liquid into the liquid storage tank 2, drive the worm 308 to rotate through the second servo motor 309, and drive the double-headed reverse screw 303 to rotate through the engagement of the worm 308 and the turbine 307, so that the sliding block 302 moves relative to or towards each other, and the distance between the two metering and leveling rollers 304 is consistent with the desired distance;

[0030] Then, the cylinder 501 extends to make the transmission wheel 504 on the sliding frame 503 mesh with the gear 306, ensuring the transmission of the two gears 306, and the heating component 4 works;

[0031] Next, the first servo motor 105 is started to work, and the winding roller 104 winds up the film, so that the film adheres to the coating liquid in the liquid storage tank 2 and then comes to the position of the metering and sluicing assembly 3, and the two metering and sluicing rollers 304 clamp the film and sluicing the material. Since the metering and sluicing rollers 304 clamp the film, the film will drive the metering and sluicing rollers 304 to rotate when it moves. The transmission assembly 5 ensures that the two metering and sluicing rollers 304 rotate in opposite and synchronous directions. The two metering and sluicing rollers 304 squeeze and sluic the coating liquid on both sides of the film to ensure that the coating thickness adhered to each part of the film is consistent;

[0032] Finally, the film after the material is mixed comes to the heating assembly 4, the heating wire 402 of the heating assembly 4 works to generate heat, and the fan 403 works to generate wind. The fan 403 blows the heat generated by the heating wire 402 to the film, so that the coating liquid on the surface of the film is dried and solidified, and the coating liquid is solidified on the film to form a finished film. The finished film comes to the winding roller 104 for winding and collecting.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A uniform coating component of a coating machine, characterized in that: The invention comprises frames (1) symmetrically arranged front and back, a liquid storage tank (2), a material metering and material scrambling assembly (3) and a heating assembly (4) being arranged between the two frames (1), a material discharge roller (101), a first guide roller (102), a second guide roller (103) and a winding roller (104) being rotatably connected between the two frames (1), and a transmission assembly (5) fixedly connected to the frame (1) being arranged at the front end of the material metering and material scrambling assembly (3); The metering and scrambling assembly (3) comprises a fixed seat (301) symmetrically arranged front and rear, the fixed seat (301) being fixedly connected to the frame (1), the upper end of the frame (1) being symmetrically slidably provided with sliding blocks (302), the sliding blocks (302) being rotatably connected with metering and scrambling rollers (304) in pairs, the outer sides of the metering and scrambling rollers (304) being respectively provided with scrapers (305) fixed to the sliding blocks (302), the front ends of the metering and scrambling rollers (304) being respectively fixed with gears (306), the fixed seat (301) being symmetrically slidably provided with sliding blocks (302) in pairs, The upper ends are rotatably connected to double-headed reverse screws (303), the double-headed reverse screws (303) are meshed with the sliding block (302), one end of the two double-headed reverse screws (303) is fixed with a turbine (307), the two turbines (307) are respectively meshed with the same worm (308), one end of the worm (308) is rotatably connected to the frame (1), the other end of the worm (308) passes through the frame (1) and is connected to a second servo motor (309), and the second servo motor (309) is fixedly connected to the frame (1).

2. The uniform coating assembly of a coating machine according to claim 1, characterized in that: The transmission assembly (5) comprises a fixed frame (502) fixedly connected to the frame (1); a cylinder (501) is fixed to the upper end of the fixed frame (502); a sliding frame (503) slidably connected to the fixed frame (502) is connected to the telescopic end of the cylinder (501); a transmission wheel (504) is symmetrically rotatably connected to the upper end of the sliding frame (503); the two transmission wheels (504) are meshed with each other, and the two transmission wheels (504) are meshed with the two double-headed reverse screws (303) in a one-to-one correspondence.

3. The uniform coating assembly of a coating machine according to claim 1, characterized in that: A T-shaped block is provided at the lower end of the sliding block (302), and a T-shaped slot is provided at the upper end of the fixing seat (301). The T-shaped block of the sliding block (302) is slidably connected in the T-shaped slot of the fixing seat (301).

4. The uniform coating assembly of a coating machine according to claim 1, characterized in that: Two heating components (4) are symmetrically arranged, and the heating components (4) include a fixed frame (401) fixedly connected to the frame (1), a plurality of heating wires (402) are fixed on one side of the fixed frame (401), and a plurality of fans (403) are fixed on the other side of the fixed frame (401).

5. The uniform coating assembly of a coating machine according to claim 1, characterized in that: The liquid storage tank (2) is located directly below the material metering and sizing assembly (3), and a material dipping roller (201) is rotatably connected inside the liquid storage tank (2).

6. The uniform coating assembly of a coating machine according to claim 1, characterized in that: One end of the winding roller (104) is rotatably connected to the frame (1), and the other end of the winding roller (104) passes through the frame (1) and is connected to a first servo motor (105), and the first servo motor (105) is fixedly connected to the frame (1).

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