A waterborne polyurethane coating application apparatus

Abstract

The utility model relates to the technical field of coating and disclose a kind of waterborne polyurethane coating coating equipment, including fixed frame, the both sides of the fixed frame are equipped with mounting groove, the inside sliding installation of mounting groove has adjusting block, the one end fixed connection of adjusting block has limit plate, the outer surface both ends of fixed frame are slidably connected to limit plate, the other end fixed connection of adjusting block has mounting block, the inside both sides of fixed frame are slidably connected to the one side of mounting block, coating roller is rotatably installed on the other side of mounting block, the inside lower end of mounting groove is equipped with fixed groove, the inside sliding installation of fixed groove has support spring, the upper end of support spring is tightly connected to the lower surface of adjusting block, the upper end of fixed frame is screw mounted with limit screw, the upper surface of adjusting block is tightly connected to the lower end of limit screw, avoid producing gap, improve coating uniformity and stability, accurate and efficient.

Description

Technical Field

[0001] This utility model relates to the field of coating technology, specifically to a water-based polyurethane coating application device. Background Technology

[0002] Polyurethane resin refers to polymeric resins containing urethane, urea, and urethane groups in their molecular chains. It is widely used in wood, plastics, automotive, aerospace, inks, coatings, printing, leather, adhesives, fabric finishing, and biomedicine. Polyurethane resin possesses excellent abrasion resistance, scratch resistance, durability, solvent resistance, adhesion, and bonding properties, making it widely applicable across various fields. In the textile industry, polyurethane resin coatings are applied to fabrics to improve the moisture permeability of clothing.

[0003] The utility model patent with authorization announcement number CN 216910852 U relates to a coating assembly for a high moisture permeability polyurethane coating adhesive. It solves the problem of poor height adjustment and inflexibility in existing coating equipment. It includes symmetrically arranged material conveying rollers, with a mounting frame having material clamping mechanisms at both ends between the rollers. A coating roller with freely adjustable height is located in the middle of the mounting frame, between the material clamping mechanisms, via a height adjustment groove. The coating roller also has a circumferentially arranged extrusion structure for dispensing adhesive under pressure. The advantages of this utility model are: the height of the coating roller can be freely adjusted according to actual needs, thereby controlling the amount of adhesive dispensed and the clamping force, making it flexible in use.

[0004] In the above-disclosed structure, the coating roller is installed through the adjustment groove to adapt to different stress levels. However, the lack of adjustment blocks for the adjustment groove makes it inconvenient to match and install support springs and limit screws, which is not conducive to alignment and adjustment. This can easily cause gaps in the coating position, affecting the quality. Furthermore, the lack of a cleaning plate to assist in cleaning affects the coating uniformity. These issues need to be improved. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a water-based polyurethane coating equipment to solve the problems of inability to match and adjust coating and uneven coating in existing coating equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-based polyurethane coating equipment, comprising a fixed frame, mounting grooves on both sides of the fixed frame, an adjusting block slidably mounted inside the mounting groove, a limiting plate fixedly connected to one end of the adjusting block, the limiting plate slidably connected to both ends of the outer surface of the fixed frame, an mounting block fixedly connected to the other end of the adjusting block, one side of the mounting block slidably connected to both sides inside the fixed frame, a coating roller rotatably mounted on the other side of the mounting block, a fixed groove at the lower end of the mounting groove, a supporting spring slidably mounted inside the fixed groove, the upper end of the supporting spring being tightly connected to the lower surface of the adjusting block, a limiting screw threadedly mounted on the upper end of the fixed frame, the lower end of the limiting screw being tightly connected to the upper surface of the adjusting block, a cleaning plate slidably connected to one side of the mounting block, and a rubber scraper fixedly connected to the lower surface of the cleaning plate.

[0007] Preferably, the cleaning plate is located at the upper end of the coating roller, and the rubber scraper is slidably connected to the upper surface of the coating roller.

[0008] Preferably, the cleaning plate is located inside the fixed frame and between the two mounting blocks. The cleaning plate is connected to the rubber scraper and aligned with the upper surface of the coating roller. It can be rotated and adjusted to scrape and clean, ensuring that the thickness of the surface material is consistent and improving the coating uniformity.

[0009] Preferably, a support frame is fixedly connected to the upper surface of the mounting block, and guide rods are slidably installed at both ends of the support frame.

[0010] Preferably, one end of the guide rod is fixedly connected to the upper surface of the cleaning plate and is symmetrically distributed on both sides above the coating roller.

[0011] Preferably, a compression spring is slidably sleeved on the outer surface of the guide rod, and the compression spring is tightly connected to the upper surface of the cleaning plate.

[0012] Preferably, the upper end of the compression spring is tightly connected to the lower surface of the support frame. By installing the guide rod and the compression spring on the support frame, they can be aligned and positioned at both ends of the cleaning plate, which is beneficial for auxiliary compression and ensures that the surface of the coating roller is scraped and cleaned accurately, efficiently, conveniently and stably.

[0013] Compared with the prior art, the present invention provides a water-based polyurethane coating application device, which has the following beneficial effects:

[0014] Through its design, the coating equipment connects to adjusting blocks via mounting slots at both ends of the fixed frame, thereby installing the coating roller. This facilitates combined installation and positioning for sliding adjustment, ensuring proper fit to the fabric and enabling rotational control. Furthermore, the bottom is connected to a support spring, which, combined with the upper limit screw, allows for flexible pressure adjustment and limits the upward height, preventing gaps and improving coating uniformity and stability, resulting in precision and efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the planar structure of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the connection between the adjusting block and the coating roller in this utility model;

[0018] Figure 4 This is a schematic diagram of the coating roller connection structure in this utility model;

[0019] Figure 5 This is a partial structural diagram of the connection between the cleaning plate and the guide rod in this utility model.

[0020] In the diagram: 11 Fixing frame, 12 Mounting slot, 13 Adjusting block, 14 Limiting plate, 15 Mounting block, 16 Coating roller, 17 Fixing slot, 18 Support spring, 19 Limiting screw, 2 Cleaning plate, 21 Rubber scraper, 22 Support frame, 23 Guide rod, 24 Compression spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides a technical solution: a water-based polyurethane coating application device. Please refer to [link / reference]. Figure 1 , Figure 3 and Figure 4The system includes a fixed frame 1, with mounting grooves 11 on both sides. Adjusting blocks 12 are slidably mounted inside the mounting grooves 11. One end of each adjusting block 12 is fixedly connected to a limiting plate 13. The connection between the adjusting block 12 and the limiting plate 13 provides external support, preventing loosening and improving the stability of vertical sliding adjustment, thus facilitating installation and use. The limiting plate 13 is slidably connected to both ends of the outer surface of the fixed frame 1. The other end of the adjusting block 12 is fixedly connected to a mounting block 14. One side of the mounting block 14 is slidably connected to both sides inside the fixed frame 1, and the other side of the mounting block 14 is rotatably mounted with a coating roller 15. A motor can be installed at one end for drive control, and the fabric can pass over the lower surface of the coating roller 15, thus rotating and applying water-based polyurethane coating to form a coating layer, facilitating processing and use. A fixing groove 16 is provided at the lower end of the mounting groove 11. A support spring 17 is slidably installed inside the 6. The upper end of the support spring 17 is tightly connected to the lower surface of the adjusting block 12. By pressing the adjusting block 12 upward with the support spring 17, the coating roller 15 can be assisted in supporting it. When the tightness of the conveyed fabric changes, the adjusting block 12 can compress the support spring 17 to make the coating roller 15 slide up and down, thereby ensuring the stability of the fit with the fabric. Furthermore, the length of the downward extension can be adjusted by the threaded limit screw 18 installed at the upper end, thereby limiting the height of the adjusting block 12 sliding upward, preventing the coating roller 15 from rising too much and creating gaps, ensuring coating quality, and facilitating combined use. The upper end of the fixing frame 1 is threaded with a limit screw 18, and the lower end of the limit screw 18 is tightly connected to the upper surface of the adjusting block 12. A cleaning plate 2 is slidably connected to one side of the mounting block 14, and a rubber scraper 21 is fixedly connected to the lower surface of the cleaning plate 2.

[0023] Please see Figure 1 , Figure 2 and Figure 5 The cleaning plate 2 is located at the upper end of the coating roller 15. The rubber scraper 21 is slidably connected to the upper surface of the coating roller 15. The cleaning plate 2 is located inside the fixing frame 1 and between the two mounting blocks 14. The rubber scraper is connected to the cleaning plate and aligned with the upper surface of the coating roller. It can be rotated and adjusted to scrape and clean, ensuring that the thickness of the surface material is consistent and improving the coating uniformity.

[0024] A support frame 22 is fixedly connected to the upper surface of the mounting block 14. Guide rods 23 are slidably mounted at both ends of the support frame 22. One end of the guide rod 23 is fixedly connected to the upper surface of the cleaning plate 2 and is symmetrically distributed on both sides above the coating roller 15. A clamping spring 24 is slidably sleeved on the outer surface of the guide rod 23. The clamping spring 24 is tightly connected to the upper surface of the cleaning plate 2, and the upper end of the clamping spring 24 is tightly connected to the lower surface of the support frame 22. By mounting the guide rods and clamping springs on the support frame, the two ends of the cleaning plate can be aligned and positioned, which is beneficial for auxiliary clamping and ensures that the surface of the coating roller is adhered to for scraping and cleaning. This is precise, efficient, convenient, and stable. The support frame 22 connected to 14 can be installed and positioned separately. Combined with the guide rod 23 and the cleaning plate 2, it can be aligned with the upper surface of the coating roller 15. In this way, the cleaning plate 2 is pressed down by the compression spring 24, which can ensure that the rubber scraper 21 adheres to the upper surface of the coating roller 15. During the rotation of the coating roller 15, the surface can be smoothed and cleaned by the rubber scraper 21 to ensure that the thickness of the adhered coating is consistent. This can improve the coating quality, avoid excessive coating in some areas, facilitate installation and use, and has high adaptability. Moreover, the rubber scraper 21 will not damage the surface of the coating roller 15, avoid creating pits and causing excessively thin coating in some areas, and ensure precision and stability.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterborne polyurethane coating application device, comprising a fixed frame (1), wherein mounting grooves (11) are provided on both sides of the fixed frame (1), and an adjusting block (12) is slidably installed inside the mounting grooves (11), characterized in that: One end of the adjusting block (12) is fixedly connected to a limiting plate (13), which is slidably connected to both ends of the outer surface of the fixing frame (1). The other end of the adjusting block (12) is fixedly connected to an installation block (14). One side of the installation block (14) is slidably connected to both sides of the inside of the fixing frame (1). A coating roller (15) is rotatably installed on the other side of the installation block (14). A fixing groove (16) is provided at the lower end of the installation groove (11). A support spring (17) is slidably installed inside the fixing groove (16). The upper end of the support spring (17) is tightly connected to the lower surface of the adjusting block (12). A limiting screw (18) is threadedly installed at the upper end of the fixing frame (1). The lower end of the limiting screw (18) is tightly connected to the upper surface of the adjusting block (12). A cleaning plate (2) is slidably connected to one side of the installation block (14). A rubber scraper (21) is fixedly connected to the lower surface of the cleaning plate (2).

2. The waterborne polyurethane coating equipment according to claim 1, characterized in that: The cleaning plate (2) is located at the upper end of the coating roller (15), and the rubber scraper (21) is slidably connected to the upper surface of the coating roller (15).

3. The waterborne polyurethane coating equipment according to claim 1, characterized in that: The cleaning plate (2) is located inside the fixing frame (1) and between the two mounting blocks (14).

4. The waterborne polyurethane coating equipment according to claim 1, characterized in that: A support frame (22) is fixedly connected to the upper surface of the mounting block (14), and guide rods (23) are slidably installed at both ends of the support frame (22).

5. The waterborne polyurethane coating equipment according to claim 4, characterized in that: One end of the guide rod (23) is fixedly connected to the upper surface of the cleaning plate (2) and is symmetrically distributed on both sides above the coating roller (15).

6. The waterborne polyurethane coating equipment according to claim 4, characterized in that: A compression spring (24) is slidably sleeved on the outer surface of the guide rod (23), and the compression spring (24) is tightly connected to the upper surface of the cleaning plate (2).

7. The waterborne polyurethane coating equipment according to claim 6, characterized in that: The upper end of the compression spring (24) is tightly connected to the lower surface of the support frame (22).

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