Fabric coating equipment
By using a multi-stage drying device and a defoaming roller design, the problem of bubble formation in fabric coating equipment has been solved, achieving efficient bubble removal and surface smoothness, and improving the yield of coated fabrics.
Patent Information
- Application Number
- CN202422264836.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-09-18
AI Technical Summary
Existing fabric coating equipment is prone to forming bubbles during the drying process, which affects the coating effect and results in a low yield.
The fabric is designed with a multi-stage drying device and a defoaming roller. The defoaming needles on the defoaming roller puncture the air bubbles, and the surface is smoothed by a scraper. Combined with the temperature control of the multi-stage drying device, the fabric is ensured to be completely dry and set after drying.
It effectively removes air bubbles, improves the yield rate of coated fabrics, reduces defects, and enhances the quality of finished products.
Smart Images

Figure CN223475374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coating composite equipment technology, and more specifically, it relates to a fabric coating equipment. Background Art
[0002] With the continuous development of the social economy and the increasing level of science and technology, my country's textile industry is also constantly developing. In the process of fabric textile processing, in order to enable the fabric to achieve some functions such as waterproof, windproof and breathable, it is generally necessary to coat the fabric so that a uniform coating material is formed on the surface of the fabric.
[0003] Existing fabric coating equipment uses a scraper to apply coating liquid onto the fabric surface to form a coating. After the coating process is completed, it needs to be heated and dried to set the coating. However, during the drying process, the fabric itself may not be dry. When heated, the moisture in the fabric evaporates, forming bubbles between the coating and the fabric, which affects the final coating effect.
[0004] Therefore, a new solution is needed to address this problem. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a fabric coating device to improve the yield of coated fabrics.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fabric coating device, including a processing frame, on which the following are respectively arranged in the order of fabric coating: a first drying device, a coating device, a scraper, a second drying device, a defoaming roller, a leveling blade, and a third drying device. The drying temperature of the second drying device is lower than that of the third drying device. The defoaming roller is rotatably connected to the processing frame. A plurality of defoaming needles are fixedly connected to the outer peripheral wall of the defoaming roller. The defoaming roller can be adjusted up and down. The blade of the leveling blade is inclined towards the processing direction of the processing frame.
[0007] The present invention is further configured such that: a plurality of the defoaming needles are arranged in a circular pattern around the axis of the defoaming roller on the defoaming roller, and the distance between adjacent defoaming needles is the same.
[0008] The present invention is further configured such that the density of the defoaming needles on the defoaming roller is 1600 needles per square meter to 3600 needles per square meter.
[0009] The present invention is further configured such that: a fixing nut is rotatably connected to one end of the defoaming roller, a screw is rotatably connected to the processing frame, the fixing nut is threadedly connected to the screw, a rotary motor is provided at the other end of the defoaming roller, the output shaft of the rotary motor is fixedly connected to the defoaming roller, a fixed frame is fixedly connected to the processing frame, and the rotary motor is slidably connected to the fixed frame.
[0010] The present invention is further configured such that the distance between the scraper and the flattening blade and the processed material is adjustable.
[0011] The present invention is further configured such that: the coating device includes a liquid storage tank and a plurality of liquid outlet nozzles, wherein the liquid storage tank is filled with coating liquid.
[0012] In summary, this utility model has the following beneficial effects: the second drying device forces out the moisture on the incompletely dried part of the fabric, forming bubbles between the fabric and the coating. The bubbles are then punctured by several defoaming needles on the defoaming roller, and the uneven surface after the bubbles are punctured is smoothed by a scraper. Finally, the third drying device sets the shape. Both the defoaming roller and the scraper can be height adjusted, making it suitable for coated fabrics of different thicknesses, reducing the generation of defects on the coated fabric and improving the yield rate. Attached Figure Description
[0013] Figure 1 It is a structural diagram of the utility model;
[0014] Figure 2 Schematic diagram of the structure of the first drying device, the second drying device, and the third drying device. Figure 1 ;
[0015] Figure 3 for Figure 2 Enlarged diagram of section A in the middle;
[0016] Figure 4 for Figure 2 Enlarged diagram of section B;
[0017] Figure 5 Schematic diagram of the structure of the first drying device, the second drying device, and the third drying device. Figure 2 .
[0018] In the diagram: 1. Processing frame; 101. Workbench; 2. Take-up roller assembly; 4. First drying device; 5. Second drying device; 6. Third drying device; 7. Liquid storage tank; 701. Liquid outlet nozzle; 8. Scraper; 9. Defoaming roller; 901. Defoaming needle; 10. Scraper; 11. Fixing nut; 12. Screw; 13. Bearing; 14. Adjusting handle one; 15. Rotary motor; 16. Fixing frame; 17. Sliding groove; 18. Long slot; 19. Fixing screw; 20. Washer; 21. Adjusting handle two. DETAILED DESCRIPTION
[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0020] A fabric coating device, such as Figure 1 - Figure 5 As shown, the equipment includes a processing frame 1. The processing frame 1 is equipped with the following components arranged in the order of fabric coating: a first drying device 4, a coating device, a doctor blade 8, a second drying device 5, a defoaming roller 9, a leveling blade 10, and a third drying device 6. The drying temperature of the second drying device 5 is lower than that of the third drying device 6. The defoaming roller 9 is rotatably connected to the processing frame 1. Several defoaming needles 901 are fixedly connected to the outer peripheral wall of the defoaming roller 9. The defoaming roller 9 can be adjusted up and down. The blade of the leveling blade 10 is inclined towards the processing direction of the processing frame 1. After the fabric is coated by the coating device and the doctor blade 8, the second drying device 5 heats the fabric and coating a second time. Undried moisture on the fabric rises after drying, forming bubbles between the fabric and the coating. These bubbles are punctured by the defoaming roller 9, then smoothed by the leveling blade 10, and finally sent to the third drying device 6 for drying and shaping, reducing defects generated during processing and improving the yield rate.
[0021] like Figure 1 - Figure 5As shown, a worktable 101 is provided on the processing frame 1. The worktable 101 can be used to transport fabric for coating operations. A take-up roller group 2 is provided at each end of the processing frame 1 to take up the fabric. Heating components are provided inside the first drying device 4, the second drying device 5, and the third drying device 6, and heating ports are provided, with the heating ports facing the worktable 101. The first drying device 4, the second drying device 5, and the third drying device 6 are all fixedly connected to the processing frame 1 and electrically connected to a power source. The coating device and the doctor blade 8 are located between the first drying device 4 and... In the middle of the second drying device 5, the coating device includes a liquid storage tank 7 and several liquid outlet nozzles 701. The liquid storage tank 7 is filled with coating liquid, and the several liquid outlet nozzles 701 are located below the liquid storage tank 7 and are connected to the liquid storage tank 7. The liquid storage tank 7 and the liquid outlet nozzles 701 are used to spray the coating liquid onto the fabric. The scraper 8 is located behind the liquid storage tank 7 and is used to scrape the coating liquid on the fabric. Preferably, the scraper 8 is configured to have an adjustable height, and the scraper 8 is provided with an adjustment handle 21 to adjust the distance between the scraper 8 and the fabric, so as to flexibly adjust the coating thickness.
[0022] like Figure 1 - Figure 3 As shown, a defoaming roller 9 and a flattening blade 10 are arranged between the second drying device 5 and the third drying device 6. The drying temperature of the second drying device 5 is lower than that of the third drying device 6. The part of the fabric that is not completely dried still contains a certain amount of moisture. During the drying operation of the coating, after the moisture on the fabric evaporates, it is easy to form bubbles between the fabric and the coating. The temperature of the second drying device 5 is set so that these bubbles are formed first, without completely shaping the coating, so that the defoaming roller 9 and the flattening blade 10 can handle the bubbles.
[0023] like Figure 1 - Figure 4As shown, several defoaming needles 901 are fixedly connected to the surface of the defoaming roller 9. The defoaming needles 901 are arranged in a circumferential array around the axis of the defoaming roller 9, with adjacent defoaming needles 901 being equidistant. The density of defoaming needles 901 on the defoaming roller 9 is between 1600 and 3600 needles per square meter, improving the efficiency and accuracy of defoaming. A fixing nut 11 is rotatably connected to one end of the defoaming roller 9. A rotating bearing 13 is provided between the fixing nut 11 and the defoaming roller 9, and the defoaming roller 9 and the fixing nut 11 are rotatably connected through the rotating bearing 13. A threaded hole is provided on the top surface of the fixing nut 11, and the threaded hole penetrates the fixing nut 11. A screw 12 is rotatably connected to the processing frame 1. The screw 12 is provided with threads and is threadedly connected to the fixing nut 11. By rotating the screw 12, the defoaming roller 9 is moved up and down, and the defoaming roller 9 can be flexibly adjusted according to different coating thicknesses. To achieve precise defoaming, the screw 12 is preferably fixedly connected to an adjustment handle 14 at its top, allowing operators to easily adjust the height of the defoaming roller 9. A rotary motor 15 is installed at the other end of the defoaming roller 9, with its output shaft fixedly connected to the roller. The output shaft of the rotary motor 15 is coaxial with the roller. A sliding plate is fixedly connected to the bottom of the rotary motor 15. A fixed frame 16 is fixedly connected to the upper part of the processing frame 1. A sliding groove 17 is provided on the end face of the fixed frame 16 near the sliding plate. Two fixed frames 16 are provided, with the sliding plate slidably connected within the sliding grooves 17 of the two fixed frames 16. Threaded holes are provided on the end face of the sliding plate, and elongated holes 18 are provided on the end face of the fixed frame 16. A fixing screw 19 passes through the elongated hole 18 and is fixedly connected to the threaded hole on the sliding plate. A washer 20 is also provided between the fixing screw 19 and the fixed frame 16 to improve the stability of the connection.
[0024] like Figure 1 - Figure 4 As shown, a leveling blade 10 is provided between the defoaming roller 9 and the third drying device 6. The leveling blade 10 has a similar structure to the scraper 8, but the difference is that the blade of the scraper 8 faces vertically downward, while the blade of the leveling blade 10 is inclined and tilted towards the processing direction of the processing frame 1. The top of the leveling blade 10 is provided with an adjustment handle for adjusting the height of the leveling blade 10. After the bubbles on the fabric are punctured by the defoaming needle 901 on the defoaming roller 9, the inclined leveling blade 10 can quickly smooth out the unevenness caused by the punctured bubbles, thereby improving the final yield.
[0025] Working principle: When using this fabric coating equipment, the fabric to be coated is located on the take-up roller group 2. The fabric is placed on the worktable 101 of the processing frame 1. The worktable 101 can rotate, driving the fabric through the first drying device 4, coating device, doctor blade 8, second drying device 5, defoaming roller 9, flattening blade 10, and third drying device 6. The first drying device 4 dries the fabric. The coating liquid is sprayed onto the fabric by the coating device. The coating liquid is flattened by the doctor blade 8. After the coated fabric passes through the second drying device 5, bubbles are formed between the fabric and the coating in the wet parts of the fabric. The bubbles are punctured by the defoaming roller 9. The areas on the fabric where the bubbles are punctured become uneven. The uneven areas are smoothed by the flattening blade 10. Finally, the coating on the fabric is set by the third drying device 6.
[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A fabric coating device, comprising a processing frame (1), characterized in that: The processing frame (1) is provided with the following components in the order of fabric coating: a first drying device (4), a coating device, a scraper (8), a second drying device (5), a defoaming roller (9), a flattening knife (10), and a third drying device (6). The drying temperature of the second drying device (5) is lower than that of the third drying device (6). The defoaming roller (9) is rotatably connected to the processing frame (1). Several defoaming needles (901) are fixedly connected to the outer peripheral wall of the defoaming roller (9). The defoaming roller (9) can be adjusted up and down. The blade of the flattening knife (10) is inclined towards the processing direction of the processing frame (1).
2. The fabric coating equipment according to claim 1, characterized in that: A number of the defoaming needles (901) are arranged in a circular arrangement around the axis of the defoaming roller (9), with the distance between adjacent defoaming needles (901) being the same.
3. The fabric coating equipment according to claim 2, characterized in that: The density of the defoaming needles (901) on the defoaming roller (9) is from 1,600 needles per square meter to 3,600 needles per square meter.
4. The fabric coating equipment according to claim 3, characterized in that: One end of the defoaming roller (9) is rotatably connected to a fixing nut (11), and a screw (12) is rotatably connected to the processing frame (1). The fixing nut (11) and the screw (12) are threadedly connected. The other end of the defoaming roller (9) is provided with a rotary motor (15). The output shaft of the rotary motor (15) is fixedly connected to the defoaming roller (9). A fixing frame (16) is fixedly connected to the processing frame (1), and the rotary motor (15) is slidably connected to the fixing frame (16).
5. The fabric coating equipment according to claim 1, characterized in that: The distance between the scraper (8) and the flat scraper (10) and the material being processed is adjustable.
6. The fabric coating equipment according to claim 1, characterized in that: The coating device includes a liquid storage tank (7) and several liquid outlet nozzles (701), wherein the liquid storage tank (7) is filled with coating liquid.