A roller coating equipment

Abstract

This utility model discloses a roller coating device, comprising at least a base and a moving device mounted on a movable frame; the moving device includes a slide rail assembly fixed to the upper surface of the movable frame and a roller assembly that moves along the direction of the slide rail assembly and is rotatable; the roller assembly includes at least a liftable roller and heating rods inserted into both ends of the roller and extending into the roller; the product is placed on the base, and an adhesive is placed on the upper surface of the product; the distance between the roller and the base is adjusted, and the roller is heated by the heating rods; the slide rail assembly is activated to drive the roller to move and rotate, and in this process, the adhesive is heated and coated onto the product surface. The beneficial effects of this utility model are: by heating the roller with heating rods, the viscosity of the adhesive is reduced during the roller coating process, and the adhesive can be quickly and evenly coated onto the product surface, improving the roller coating efficiency; after cooling, the adhesive regains its viscosity and can stably adhere to the product, ensuring the reliability of the roller coating.

Description

Technical Field

[0001] This utility model belongs to the field of sheet coating technology, and in particular relates to a coating equipment. Background Technology

[0002] With economic development, the penetration rate of automated equipment is increasing, and mechanized production and processing are gradually replacing traditional manual labor, which has improved work efficiency and reduced labor costs. In the past, factories generally used manual glue application for processing and production, which was a laborious process and could not achieve the required uniform film thickness.

[0003] To address the aforementioned issues, blade coating was developed. Blade coating is a commonly used method in coating processes. Its principle involves applying the adhesive to the product and then using a blade to scrape away the excess adhesive, resulting in a coating of a certain thickness. The advantage of blade coating is its ability to control coating thickness; however, there are three key control points for adjusting the adhesive thickness.

[0004] 1. The angle of the scraper is key to adjusting the thickness of the colloid. If the scraper angle is too large, the colloid will not flow smoothly, resulting in an excessively thick coating; while if the scraper angle is too small, the colloid will not flow smoothly, resulting in an excessively thin coating.

[0005] 2. The pressure of the scraper also affects the thickness of the colloid. Excessive scraper pressure will compress the colloid, resulting in a coating that is too thin; while insufficient scraper pressure will hinder the flow of the colloid, resulting in a coating that is too thick.

[0006] 3. The doctor blade speed has a relatively small impact on the thickness of the colloid, but it still needs to be considered. If the doctor blade speed is too fast, the colloid will not flow sufficiently, resulting in a coating that is too thin; while if the doctor blade speed is too slow, the colloid will flow excessively, resulting in a coating that is too thick.

[0007] Therefore, applying adhesive using a scraper requires adjusting the scraper angle, pressure, and speed to obtain a coating of the desired thickness. This process involves controlling and adjusting numerous parameters, making it quite challenging.

[0008] Existing patent CN220091945U, "A Decorative Paper Glue Coating Device," proposes combining a glue scraper with a coating roller (drum) to achieve glue coating while preventing the glue from sticking to the coating roller. This device requires an additional glue scraper, and the scraper still suffers from the aforementioned problems. Therefore, designing a roller coating device is a crucial technical problem that those skilled in the art need to solve. Utility Model Content

[0009] The purpose of this invention is to solve the aforementioned problems in the prior art and to provide a roller coating device.

[0010] The objective of this utility model is achieved through the following technical solution:

[0011] A roller coating apparatus is mounted on a movable frame; it includes at least a base and a moving device mounted on the movable frame; the moving device includes a slide rail assembly fixed to the upper surface of the movable frame and a roller assembly that moves along the direction of the slide rail assembly and is rotatable; the roller assembly includes at least a liftable roller and heating rods inserted into both ends of the roller and extending into the roller; a product is placed on the base, and an adhesive is placed on the upper surface of the product; the distance between the roller and the base is adjusted, and the roller is heated by the heating rods; the slide rail assembly is activated to drive the roller to move and rotate, and in the process, the adhesive is heated and coated onto the surface of the product.

[0012] Preferably, the slide rail assembly is disposed below the base; the slide assembly includes a set of guide rails fixed to the movable frame, a slider that moves along the setting direction of the guide rails, and a linear module parallel to the guide rails; the roller assembly spans across the slider.

[0013] Preferably, the linear module is provided with a stop and a proximity switch.

[0014] Preferably, the roller assembly is connected to the slider and the linear module via a support base; both ends of the roller are mounted in the support block via bearings, and the support block is mounted in the support base via springs.

[0015] Preferably, a micrometer is provided at the top of the support base, and the end of the micrometer passes through the support base and abuts against the top surface of the support block; the micrometer is arranged opposite to the spring; a knob is provided at the front end of the micrometer, and rotating the knob can drive the support block to move up and down along the height direction of the movable bracket.

[0016] Preferably, the support base is U-shaped, and its two end support portions are connected to the support surface by pivots and locking pins; the support block is located inside the support portion.

[0017] Preferably, a limiting block is also fixed on the outer side of the support base, and a notch is formed at the end of the limiting block; the notch and the limiting block are close to the pivot in the support portion.

[0018] Preferably, the outer surface of the roller is provided with a non-stick coating.

[0019] The advantages of this utility model's technical solution are mainly reflected in:

[0020] Heating the rollers with heating rods reduces the viscosity of the colloid during the coating process, allowing for rapid and uniform application of the colloid to the product surface and improving coating efficiency. After cooling, the colloid regains its viscosity and adheres stably to the product, ensuring coating reliability.

[0021] Coating the roller surface with a coating can reduce its surface adhesion, play a role in preventing sticking, ensure that the roller can be reused, and eliminate the need for cleaning the surface during processing, thereby improving processing efficiency.

[0022] The linear module drives the components mounted on it to move in a straight line, and the movement direction is further stabilized by guide rails and sliders to reduce wobbling. Proximity switches and stops limit the movement termination position to effectively prevent the components from exceeding the movement range. Attached Figure Description

[0023] Figure 1 : A first perspective view of a preferred embodiment of the present invention;

[0024] Figure 2 : A second perspective view of a preferred embodiment of the present invention;

[0025] Figure 3 Top view of a preferred embodiment of this utility model;

[0026] Figure 4 Side view of a preferred embodiment of the present invention. Detailed Implementation

[0027] The purpose, advantages, and features of this utility model will be illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of applying the technical solutions of this utility model, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0028] In the description of the solution, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience and simplification of description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Also, in the description of the solution, with the operator as a reference, the direction closer to the operator is the proximal end, and the direction farther from the operator is the distal end.

[0029] like Figures 1 to 4As shown, this utility model discloses a roller coating device, mounted on a movable frame 1. The bottom of the movable frame 1 is equipped with casters, and at least one of the casters is equipped with a foot brake. The casters allow for quick relocation of the movable frame 1, facilitating timely changes in operating position and reducing the difficulty of handling. Figure 1 As shown, the roller coating equipment includes at least a base 10 and a moving device 2 disposed on the movable frame 1. Further, the moving device 2 includes at least a slide rail assembly 21 fixed to the upper surface of the movable frame 1. Figures 1 to 2 As shown, the slide rail assembly 21 is disposed below the base 10; the slide rail assembly 21 includes a set of guide rails 211 fixed on the movable frame 1, a slider 212 that moves along the setting direction of the guide rails 211, and a linear module 213 parallel to the guide rails 211; the roller assembly 22 spans across the slider 212.

[0030] like Figure 3 As shown, the specific structure of the linear module 213 can be referenced from components with linear movement functions such as lead screws or electric cylinders. Furthermore, the linear module 213 is equipped with a stop 214 and a proximity switch. The linear module 213 drives the component mounted on it to move in a linear direction, and the guide rail 211 and the slider 212 further stabilize the movement direction, reducing swaying. The proximity switch and the stop 214 limit the movement termination position, effectively preventing the component from exceeding its movement range.

[0031] The moving device 2 also includes a self-rotating roller assembly 22. The roller assembly 22 includes at least a liftable roller 221. Furthermore, the outer surface of the roller 221 is provided with a non-stick coating, which can be a Teflon or silicone oil coating, serving to prevent sticking; ensuring the roller can be reused without the need for cleaning its surface during processing, thus improving processing efficiency. In other embodiments, the roller 221 can also be made of materials such as polyethylene (PE), polypropylene (PP), or polytetrafluoroethylene (PEFE). Because these materials have smooth surfaces and stable molecular structures, colloids are difficult to wet or penetrate the surface of the roller 221, similarly providing an anti-sticking effect.

[0032] The roller assembly 22 further includes heating rods 222 inserted into both ends of the roller 221 and extending into the roller 221. The heating rods 222 heat the roller 221 to increase the surface temperature of the roller 221, thereby reducing the viscosity of the adhesive when the roller 221 is coated with adhesive, and effectively preventing the adhesive from sticking to the surface of the roller 221.

[0033] Specifically, the roller assembly 22 can move along the direction of the slide rail assembly 21. Further, the roller assembly 22 is connected to the slider 212 and the linear module 213 via a support base 120; both ends of the roller 221 are mounted within the support block 1200 via bearings. The linear module 213 drives the support base 120 and the roller 221 to move in a linear direction, while the roller 221 rotates during movement to compact and flatten the colloid on the surface of the product.

[0034] Furthermore, the support block 1200 is spring-loaded within the support base 120. A micrometer 123 is mounted at the top of the support base 120, with its end penetrating the support base 120 and abutting against the top surface of the support block 1200. The micrometer 123 is positioned opposite the spring; and a knob is located at the tip of the micrometer 123. Rotating this knob drives the support block 1200 to move up and down along the height direction of the movable bracket 1, simultaneously compressing or extending the spring. By driving the support block 1200 and the roller 221 to move along the height direction via the micrometer 123, the roller 221 can be raised and lowered, adjusting the gap between the roller 221 and the product, adapting to products of different thicknesses, and improving adaptability and flexibility.

[0035] Furthermore, the support base 120 is U-shaped, with its two end support portions 1201 connected to the support surface 1202 via pivots and locking pins 1203. The support block 1200 is located within the support portion 1201. Additionally, a limiting block 13 is fixed to the outer side of the support base 120, and a notch 130 is formed at the end of the limiting block 13; the notch 130 and the limiting block 13 are close to the pivot in the support portion 1201. The distance between the notch 130 and the support portion 1201 is preferably approximately equal to the length of the first segment of the sidewall of the support portion 1201. Therefore, after the roller 221 has finished coating the product surface with the colloid, pulling out the locking pin 1203 allows the support base 120 to rotate around its pivot point until the support base 120 abuts against the limiting block 13. Simultaneously, the first and second sections of the sidewall of the support portion 1201 restrict the support base 120 from continuing to rotate downwards, thus stabilizing the height of the roller 221 after rotation. During this process, the distance between the roller 221 and the upper surface of the product increases, allowing the coated product to be easily removed for the next processing position.

[0036] The working process of this utility model is briefly described below:

[0037] S0, place the product on the base 10 and place the colloid on the upper surface of the product near the end of the roller 221;

[0038] S1, the distance between the roller 221 and the base 10 is adjusted by the micrometer 123, and the distance between the roller 221 and the base 10 is equal to the sum of the product thickness and the thickness of the colloid.

[0039] S2, the heating rod 222 is activated, and the heating rod 222 heats the roller 221;

[0040] S3, start the moving device 2, the linear module 113 and the slide rail assembly 21 drive the roller 221 to move and rotate, and during this process the roller 221 heats the colloid and evenly coats it on the product surface.

[0041] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A roller coating device, mounted on a movable frame (1); characterized in that: The system includes at least a base (10) and a moving device (2) disposed on the moving frame (1); the moving device (2) includes a slide rail assembly (21) fixed to the upper surface of the moving frame (1) and a roller assembly (22) that moves along the setting direction of the slide rail assembly (21) and can rotate; the roller assembly (22) includes at least a liftable roller (221) and a heating rod (222) inserted into both ends of the roller (221) and extending into the roller (221); the product is placed on the base (10), and colloid is placed on the upper surface of the product. The distance between the roller (221) and the base (10) is adjusted, and the roller (221) is heated by the heating rod (222). The slide rail assembly (21) is activated to drive the roller (221) to move and rotate, and the colloid is heated and coated on the surface of the product during this process.

2. The roller coating equipment according to claim 1, characterized in that: The slide rail assembly (21) is disposed below the base (10); the slide rail assembly (21) includes a set of guide rails (211) fixed on the movable frame (1), a slider (212) that moves along the setting direction of the guide rails (211), and a linear module (213) parallel to the guide rails (211); the roller assembly (22) spans across the slider (212).

3. The roller coating equipment according to claim 2, characterized in that: The linear module (213) is equipped with a stop (214) and a proximity switch.

4. The roller coating equipment according to claim 3, characterized in that: The roller assembly (22) is connected to the slider (212) and the linear module (213) via the support base (120); the two ends of the roller (221) are placed in the support block (1200) via bearings, and the support block (1200) is set in the support base (120) via springs.

5. A roller coating equipment according to claim 4, characterized in that: A micrometer (123) is provided at the top of the support base (120), and the end of the micrometer (123) passes through the support base (120) and abuts against the top surface of the support block (1200); the micrometer (123) is arranged opposite to the spring; a knob is provided at the head end of the micrometer (123), and rotating the knob can drive the support block (1200) to rise and fall along the height direction of the movable frame (1).

6. A roller coating equipment according to claim 4, characterized in that: The support base (120) is U-shaped, and its two end support portions (1201) are connected to the support surface (1202) by a pivot and a locking pin (1203); the support block (1200) is located inside the support portion (1201).

7. A roller coating equipment according to claim 6, characterized in that: A limiting block (13) is also fixed on the outer side of the support base (120), and a notch (130) is formed at the end of the limiting block (13); the notch (130) and the limiting block (13) are close to the pivot in the support part (1201).

8. A roller coating equipment according to claim 1, characterized in that: The outer surface of the roller (221) is provided with a non-stick coating.

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