Double-layer coating machine

Abstract

The utility model relates to a double-layer coating machine, and belongs to the technical field of double-layer coating machines, the double-layer coating machine comprises a double-layer coating machine, a guide roller and a coating roller are arranged on the double-layer coating machine, an infrared drying box is arranged on the double-layer coating machine, and a thinning structure and a cleaning structure are arranged on the double-layer coating machine. According to the double-layer coating machine, an asynchronous motor is used as a driving source, and a control block is driven to move downwards on the outer surface of a guide rod through mechanical transmission, so that a thinning scraping plate is controlled to move downwards, the distance between the thinning scraping plate and a base material is adjusted, redundant coating is scraped off through the thinning scraping plate in the base material feeding process, and the coating efficiency is improved. The two cleaning scrapers can be controlled to be in contact with the two sides of the thinning scraper through the feeding component, the paint attached to the thinning scraper is cleaned in the upward moving process of the thinning scraper, and therefore the accuracy of the thinning scraper for controlling the paint thickness is guaranteed.

Description

Technical Field

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

[0002] A double-layer coater is a device that applies two different coatings or materials to a substrate at the same time. The double-layer coater is mainly composed of a coating roller, a feeding system, a substrate conveying system, an infrared drying oven, a control system, and other structures. The feeding system is used to stably provide two different coatings to the coating roller. The substrate conveying system is composed of a drive roller, a tensioning roller, a guide roller, etc. The infrared drying oven uses infrared irradiation to quickly dry the coated material. The working principle of the double-layer coater is to add two different coatings to the two feeding systems of the double-layer coater respectively. The substrate enters the coating area under the drive of the substrate conveying system, and uses two coating rollers to simultaneously apply the coating to the upper and lower surfaces of the substrate or different areas of the same surface to form a double-layer coating.

[0003] In the current existing technology, when a double-layer coating machine coats the upper and lower sides of a substrate, it is necessary to ensure that the coating thickness on both sides of the substrate is uniform. Since the viscosity, fluidity and other properties of the two coating materials may be different, it is easy to cause the coating thickness on the upper and lower sides of the substrate to be different during the coating process, which in turn affects the quality of the product. Therefore, a double-layer coating machine is proposed to solve the above problem. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a double-layer coating machine, which has the advantages of being easy to thin thicker coatings, etc., and solves the problem that when the double-layer coating machine coats the upper and lower sides of the substrate, it is necessary to ensure that the coating thickness on the upper and lower sides of the substrate is uniform, and because the viscosity, fluidity and other properties of the two coated materials may be different, it is easy to cause the coating thickness on the upper and lower sides of the substrate to be different during the coating process, which in turn affects the quality of the product.

[0005] To achieve the above object, the utility model provides the following technical solution: a double-layer coating machine, comprising a double-layer coating machine, the double-layer coating machine being provided with a guide roller and a coating roller, the double-layer coating machine being provided with an infrared drying oven, the double-layer coating machine being provided with a thinning structure and a cleaning structure;

[0006] The thinning structure includes a lifting frame fixedly mounted on the rear side wall of the inner cavity of the double-layer coating machine, a control block is slidably mounted inside the lifting frame, a thinning scraper for thinning the coating is fixedly mounted on the front of the control block, a guide component for limiting the sliding trajectory of the thinning scraper is provided inside the lifting frame, a threaded rod with one end passing through and extending to the outside of the lifting frame is rotatably mounted inside the lifting frame, the threaded rod is threadedly mounted on the control block, and an asynchronous motor fixedly connected to one end of the threaded rod is fixedly mounted on the top of the lifting frame.

[0007] Furthermore, the cleaning structure includes a support frame fixedly installed at the bottom of the lifting frame, the back of the support frame is fixedly connected to the rear side wall of the inner cavity of the double-layer coater, the support frame is equipped with a scraping component for cleaning the paint attached to the thinning scraper, and the support frame is equipped with a feeding component for controlling the movement of the scraping component.

[0008] Furthermore, the guide roller and the coating roller are rotatably installed inside the double-layer coating machine respectively, and the infrared drying box is fixedly installed inside the double-layer coating machine.

[0009] Furthermore, the control block includes a mounting block and a displacement sensor, the displacement sensor is fixedly mounted on the front of the mounting block, the mounting block is threadedly mounted on the outer surface of the threaded rod, and the thinning scraper is fixedly connected to the front of the mounting block.

[0010] Furthermore, the guide component includes a guide rod and a connecting hole. The guide rod is fixedly installed between the inner top wall and the inner bottom wall of the lifting frame. The connecting hole is opened inside the mounting block. One end of the guide rod passes through the connecting hole and the outer surface of the guide rod is slidably connected to the inner wall of the connecting hole.

[0011] Furthermore, a mounting frame is fixedly installed on the top of the lifting frame, the asynchronous motor is fixedly installed on the mounting frame, and the displacement sensor is electrically connected to the asynchronous motor.

[0012] Furthermore, the scraping component includes two L-shaped plates, and two rectangular grooves are opened on the support frame. The two L-shaped plates respectively pass through the two rectangular grooves and extend to the left and right sides of the thinning scraper. The two L-shaped plates are respectively slidably connected to the inner walls of the two rectangular grooves.

[0013] Furthermore, the feeding component includes two electric push rods, which are respectively fixedly mounted on the support frame and are symmetrically distributed on the left and right. The telescopic ends of the two electric push rods are respectively fixedly connected to the opposite sides of the two L-shaped plates.

[0014] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0015] The double-layer coating machine is provided with a thinning structure and a cleaning structure, which realizes the use of an asynchronous motor as a driving source and drives the control block to move downward on the outer surface of the guide rod through mechanical transmission, thereby controlling the thinning scraper to move downward, and then adjusting the distance between the thinning scraper and the substrate, so that the thinning scraper is used to scrape off excess paint during the substrate feeding process, so that the paint thickness on the upper and lower surfaces of the substrate is the same, and the feeding component can be used to control the two cleaning scrapers to contact the two sides of the thinning scraper, and the process of the thinning scraper moving up is used to clean the paint attached to the thinning scraper, thereby ensuring the accuracy of the thinning scraper in controlling the paint thickness, thereby enhancing the practicality of the double-layer coating machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 A magnified view of point A in the figure;

[0018] Figure 3 It is a three-dimensional schematic diagram of the structural support frame and the lifting frame of the utility model;

[0019] Figure 4 This is a front view of the cleaning structure and scraping structure of the utility model.

[0020] In the figure: 1. Double-layer coating machine; 2. Guide roller; 3. Coating roller; 4. Infrared drying oven; 51. Lifting frame; 52. Control block; 53. Thinning scraper; 54. Guide component; 55. Threaded rod; 56. Asynchronous motor; 57. Support frame; 58. Scraper component; 59. Feed component. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 4 A double-layer coater in this embodiment includes a double-layer coater 1, which is provided with a guide roller 2 and a coating roller 3, an infrared drying oven 4, and a thinning structure and a cleaning structure. The guide roller 2 and the coating roller 3 are respectively rotatably installed inside the double-layer coater 1, and the infrared drying oven 4 is fixedly installed inside the double-layer coater 1.

[0023] Example 1: Please refer to Figures 1 to 4 In the embodiment of this embodiment, the thinning structure includes a lifting frame 51 fixedly mounted on the rear side wall of the inner cavity of the double-layer coating machine 1, and a control block 52 is slidably mounted inside the lifting frame 51. A thinning scraper 53 for thinning the coating is fixedly mounted on the front of the control block 52. A guide component 54 is provided inside the lifting frame 51 for limiting the sliding trajectory of the thinning scraper 53. A threaded rod 55 with one end passing through and extending to the outside of the lifting frame 51 is rotatably mounted inside the lifting frame 51. The control block 52 includes a mounting block and a displacement sensor. The displacement sensor is fixedly mounted on the front of the mounting block. The mounting block is threadedly mounted on the outer surface of the threaded rod 55. The thinning scraper 53 is fixedly connected to the front of the mounting block to facilitate rotating the threaded rod 55 to control the up and down movement of the thinning scraper 53. The threaded rod 55 is threadedly mounted on the control block 52. An asynchronous motor 56 fixedly connected to one end of the threaded rod 55 is fixedly mounted on the top of the lifting frame 51.

[0024] Among them, the guide component 54 includes a guide rod and a connecting hole. The guide rod is fixedly installed between the inner top wall and the inner bottom wall of the lifting frame 51. The connecting hole is opened inside the mounting block. One end of the guide rod passes through the connecting hole and the outer surface of the guide rod is slidably connected to the inner wall of the connecting hole, so as to limit the mounting block to move up and down only on the outer surface of the guide rod.

[0025] In addition, a mounting frame is fixedly installed on the top of the lifting frame 51, and the asynchronous motor 56 is fixedly installed on the mounting frame. The displacement sensor is electrically connected to the asynchronous motor 56 to facilitate the control of the asynchronous motor 56 to be shut down in time.

[0026] By adopting the above technical solution, the asynchronous motor 56 on the top of the lifting frame 51 is started, so that the asynchronous motor 56 drives the threaded rod 55 to rotate, so that the control block 52 threadedly connected to the outer surface of the threaded rod 55 moves downward on the outer surface of the guide rod, and then the moving control block 52 drives the thinning scraper 53 to move downward, thereby controlling the distance between the thinning scraper 53 and the substrate, thereby utilizing the transportation of the substrate and scraping off part of the paint layer through the thinning scraper 53, thereby achieving the purpose of thinning the paint.

[0027] Example 2: Please refer to Figures 1 to 4 In this embodiment, the cleaning structure includes a support frame 57 fixedly installed at the bottom of the lifting frame 51, and the back of the support frame 57 is fixedly connected to the rear side wall of the inner cavity of the double-layer coating machine 1. A scraping component 58 for cleaning the paint attached to the thinning scraper 53 is installed on the support frame 57. The scraping component 58 includes two L-shaped plates. Two rectangular grooves are provided on the support frame 57. The two L-shaped plates respectively pass through the two rectangular grooves and extend to the left and right sides of the thinning scraper 53. The two L-shaped plates are respectively slidably connected to the inner walls of the two rectangular grooves, so that the L-shaped plates can be used to scrape off the paint attached to the thinning scraper 53. A feeding component 59 for controlling the movement of the scraping component 58 is installed on the support frame 57.

[0028] Among them, the feeding component 59 includes two electric push rods, which are respectively fixedly installed on the support frame 57 and are symmetrically distributed on the left and right. The telescopic ends of the two electric push rods are respectively fixedly connected to the opposite sides of the two L-shaped plates, so as to facilitate the control of the two L-shaped plates to move to the opposite side or the opposite side.

[0029] By adopting the above technical solution, the two electric push rods in the feed component 59 are started, thereby controlling the two L-shaped plates in the scraper component 58 to move to the opposite side until the two L-shaped plates are against the two sides of the thinning scraper 53. The asynchronous motor 56 is used to drive the threaded rod 55 to rotate in the opposite direction, thereby controlling the thinning scraper 53 to rise, and the two L-shaped plates are used to clean the paint attached to the thinning scraper 53.

[0030] The working principle of the above embodiment is:

[0031] When the double-layer coating machine is in use, when thinning a thicker coating layer on a substrate, the asynchronous motor 56 on the top of the lifting frame 51 is started, so that the asynchronous motor 56 drives the threaded rod 55 to rotate, so that the control block 52 threadedly connected to the outer surface of the threaded rod 55 moves downward on the outer surface of the guide rod, and then the moving control block 52 drives the thinning scraper 53 to move downward, thereby controlling the distance between the thinning scraper 53 and the substrate, thereby utilizing the transportation of the substrate and scraping off part of the coating layer through the thinning scraper 53, thereby achieving the purpose of thinning the coating. It is also possible to start the two electric push rods in the feeding component 59 to control the two L-shaped plates in the scraping component 58 to move to the opposite side until the two L-shaped plates are against the two sides of the thinning scraper 53, and use the asynchronous motor 56 to drive the threaded rod 55 to rotate in the opposite direction, thereby controlling the thinning scraper 53 to rise, and utilizing the two L-shaped plates to clean the coating adhered to the thinning scraper 53.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

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

Claims

1. A double-layer coating machine, comprising a double-layer coating machine (1), characterized in that: The double-layer coating machine (1) is provided with a guide roller (2) and a coating roller (3), the double-layer coating machine (1) is provided with an infrared drying box (4), and the double-layer coating machine (1) is provided with a thinning structure and a cleaning structure; The thinning structure includes a lifting frame (51) fixedly mounted on the rear side wall of the inner cavity of the double-layer coating machine (1), a control block (52) is slidably mounted inside the lifting frame (51), a thinning scraper (53) for thinning the coating layer is fixedly mounted on the front of the control block (52), a guide component (54) for limiting the sliding trajectory of the thinning scraper (53) is provided inside the lifting frame (51), a threaded rod (55) with one end passing through and extending to the outside thereof is rotatably mounted inside the lifting frame (51), the threaded rod (55) is threadedly mounted on the control block (52), and an asynchronous motor (56) fixedly connected to one end of the threaded rod (55) is fixedly mounted on the top of the lifting frame (51).

2. A double-layer coating machine according to claim 1, characterized in that: The cleaning structure includes a support frame (57) fixedly mounted on the bottom of the lifting frame (51), the back of the support frame (57) being fixedly connected to the rear side wall of the inner cavity of the double-layer coating machine (1), a scraping component (58) for cleaning the paint adhered to the thinning scraper (53) being mounted on the support frame (57), and a feeding component (59) for controlling the movement of the scraping component (58) being mounted on the support frame (57).

3. A double-layer coating machine according to claim 1, characterized in that: The guide roller (2) and the coating roller (3) are rotatably mounted inside the double-layer coating machine (1), and the infrared drying box (4) is fixedly mounted inside the double-layer coating machine (1).

4. A double-layer coating machine according to claim 1, characterized in that: The control block (52) includes a mounting block and a displacement sensor, wherein the displacement sensor is fixedly mounted on the front surface of the mounting block, the mounting block is threadedly mounted on the outer surface of the threaded rod (55), and the thinning scraper (53) is fixedly connected to the front surface of the mounting block.

5. A double-layer coating machine according to claim 4, characterized in that: The guide component (54) includes a guide rod and a connecting hole. The guide rod is fixedly installed between the inner top wall and the inner bottom wall of the lifting frame (51). The connecting hole is opened inside the mounting block. One end of the guide rod passes through the connecting hole and the outer surface of the guide rod is slidably connected to the inner wall of the connecting hole.

6. A double-layer coating machine according to claim 4, characterized in that: A mounting frame is fixedly mounted on the top of the lifting frame (51), the asynchronous motor (56) is fixedly mounted on the mounting frame, and the displacement sensor is electrically connected to the asynchronous motor (56).

7. A double-layer coating machine according to claim 2, characterized in that: The scraping component (58) includes two L-shaped plates. Two rectangular grooves are provided on the support frame (57). The two L-shaped plates respectively penetrate the two rectangular grooves and extend to the left and right sides of the thinning scraper (53). The two L-shaped plates are respectively slidably connected to the inner walls of the two rectangular grooves.

8. A double-layer coating machine according to claim 7, characterized in that: The feeding component (59) includes two electric push rods, which are respectively fixedly mounted on the support frame (57) and are symmetrically distributed on the left and right. The telescopic ends of the two electric push rods are respectively fixedly connected to the opposite sides of the two L-shaped plates.

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