An apparatus for producing fiber coatings

Abstract

This utility model relates to the field of fiber sizing technology, specifically to a device for producing fiber coatings. The device includes an impregnation tank and an oven arranged sequentially. The oven has openings at both the inlet and outlet ends, and at least two guide rollers are provided outside each opening. These guide rollers are all positioned on the same horizontal plane, defining a path for the fiber to reciprocate through the oven. In use, the fiber in the impregnation tank repeatedly enters and exits the oven via the guide rollers to achieve drying. After entering the oven, the fiber undergoes suspended, non-contact heat curing, resulting in a more uniform and smooth fiber coating surface and reducing the risk of fiber breakage. In this utility model, the guide rollers are all positioned on the same horizontal plane, minimizing the variation in distance from the heat source and ensuring a more uniform heat distribution on the fiber, making it more suitable for preparing high-quality fiber coatings.

Description

Technical Field

[0001] This utility model relates to the field of fiber sizing technology, specifically to a device for making fiber coatings. Background Technology

[0002] A sizing machine is a textile device used to sizing warp yarns. It controls processes such as fiber impregnation, pressing, and drying to ensure a uniform coating of sizing agent on the fiber surface, thereby enhancing the fiber's strength, abrasion resistance, and bundle properties. Existing sizing machines are bulky, and their drying systems suffer from uneven heat distribution, making them unsuitable for applications requiring high precision in fiber coating. Furthermore, due to structural design limitations, single-yarn sizing machines are prone to damage at the contact points with the yarn cage, resulting in uneven coating. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device suitable for making uniform and high-precision fiber coatings on fibers.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a device for making fiber coating, comprising an impregnation tank and an oven arranged in sequence, the oven including an inlet end and an outlet end, and at least two guide rollers are provided outside the openings of the inlet end and the outlet end, the guide rollers are all arranged on the same horizontal plane, and the guide rollers define a passage for the fiber to reciprocate through the oven.

[0005] The oven is equipped with an infrared heating device and a hot air circulation device.

[0006] It also includes a scraper, which is installed between the slurry tank and the drying oven.

[0007] The oven includes an oven cover and a base arranged sequentially from top to bottom. The oven cover is an inverted box, and the sides of the oven cover at the inlet and outlet ends are made of transparent material.

[0008] The oven cover has openings at the lower ends of both the inlet and outlet ends.

[0009] The base has a fixing rod on the side facing the oven cover, and a guide wheel is provided on the fixing rod.

[0010] The fixing rod is a U-shaped structure, which includes a connecting section and two straight sections that are parallel to each other. The connecting section is located outside the vertical projection range of the base, and a guide wheel is provided on the connecting section.

[0011] The oven lid is equipped with an infrared heating device on its inner side.

[0012] The top of the oven lid is equipped with a hot air circulation device.

[0013] The guide wheel includes an inlet side and an outlet side, and the inlet side is provided with a slurry-absorbing sponge.

[0014] The beneficial effects of this invention are as follows: In the equipment for producing fiber coatings, the fibers in the impregnation tank are repeatedly moved in and out of the drying oven via guide rollers to achieve drying. After entering the drying oven, the fibers undergo suspended, non-contact heat curing, resulting in a more uniform and smooth fiber coating surface and reducing the risk of fiber breakage. In this invention, all guide rollers are positioned on the same horizontal plane, minimizing the variation in distance from the heat source and ensuring a more uniform heat distribution on the fibers, making it more suitable for preparing high-quality fiber coatings. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the equipment for producing fiber coatings in Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the slurry soaking tank in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the scraper structure in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the oven structure in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the structure of the fixed rod and the guide wheel in Embodiment 1 of this utility model; Figure 6 This is a partial structural diagram of the oven in Embodiment 1 of this utility model; Figure 7 This is a schematic diagram of the oven structure in Embodiment 2 of this utility model; Label Explanation: 1. Soaking tank; 2. Slurry scraper; 3. Oven; 31. Oven cover; 32. Base; 33. Fixing rod; 331. Connecting section; 332. Straight section; 34. Guide wheel for changing direction; 35. Slurry absorbent sponge. Detailed Implementation

[0016] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0017] Please refer to Figure 1 and 2 An apparatus for producing fiber coating includes an impregnation tank 1 and an oven 3 arranged in sequence. The oven 3 includes openings at the inlet and outlet ends. At least two guide rollers 34 are provided outside the openings at the inlet and outlet ends. The guide rollers 34 are arranged on the same horizontal plane and define a passage for the fiber to travel back and forth through the oven 3.

[0018] As can be seen from the above description, the beneficial effects of this utility model are as follows: the fiber in the sizing tank 1 is dried by repeatedly entering and exiting the oven 3 through the guide wheel 34. After entering the oven 3, the fiber is suspended and heat-cured without contact, which avoids the problem of fiber and yarn cage contact during sizing in traditional single yarn sizing machines, making the fiber coating surface more uniform and smooth, reducing stress concentration caused by uneven coating, and reducing the risk of fiber breakage.

[0019] This equipment can reduce coating preparation steps and improve production efficiency by increasing the number of impregnation tanks 1, allowing the next layer of fiber coating to be prepared after the previous layer has cured. The sizing equipment can also extend the fiber curing time in the drying oven 3 by adding a guide wheel 34 assembly, thereby increasing the fiber collection rate and equipment production efficiency while maintaining the same fiber coating thickness.

[0020] In this invention, all the guide wheels 34 are set on the same horizontal plane, resulting in smaller changes in the distance between them and the heat source. This leads to a more uniform heat distribution felt by the fibers, making it more suitable for the preparation of high-quality fiber coatings.

[0021] Furthermore, an infrared heating device and a hot air circulation device are installed inside the oven 3.

[0022] As can be seen from the above description, the oven 3 of this utility model is small in size. Through built-in infrared heating and hot air circulation, it can ensure uniform heat distribution, enabling the oven 3 to achieve precise control from 0 to 300°C, which is beneficial for the controllable preparation of high-quality coatings.

[0023] Please refer to Figure 3 Furthermore, it also includes a scraper 2, which is disposed between the slurry tank 1 and the drying oven 3.

[0024] As can be seen from the above description, the scraper 2 is used to adjust the coating thickness and uniformity.

[0025] Please refer to Figure 4 and 6 Furthermore, the oven 3 includes an oven cover 31 and a base 32 arranged sequentially from top to bottom. The oven cover 31 is an inverted box, and the sides of the oven cover 31 at the inlet and outlet ends are made of transparent material.

[0026] As can be seen from the above description, the oven cover 31 is made of transparent material on both sides of the inlet and outlet ends, serving as a transparent observation port to facilitate observation of the state of the fiber surface coating.

[0027] Furthermore, the oven cover 31 has openings at the lower ends on both sides of the inlet and outlet ends.

[0028] As can be seen from the above description, this opening is used for yarn to enter and exit the drying oven 3.

[0029] Furthermore, a fixing rod 33 is provided on the side of the base 32 facing the oven cover 31, and a guide wheel 34 is provided on the fixing rod 33.

[0030] As can be seen from the above description, the guide wheel 34 is set on the fixed rod 33, so that the yarn enters the drying oven 3 suspended in the air.

[0031] Please refer to Figure 5 Furthermore, the fixing rod 33 has a U-shaped structure, which includes a connecting section 331 and two straight sections 332, which are parallel to each other. The connecting section 331 is located outside the vertical projection range of the base 32, and a guide wheel 34 is provided on the connecting section 331.

[0032] As can be seen from the above description, the guide wheels inside the oven 3 need to be designed to remain undeformed under high temperatures for extended periods. The guide wheel 34 of this invention is installed outside the vertical projection range of the base 32, which reduces the material requirements for the guide wheel, makes installation more convenient, and better meets actual production needs.

[0033] Furthermore, an infrared heating device is provided on the inner side of the oven cover 31.

[0034] Furthermore, at least two infrared heating devices are evenly provided on the inner side of the oven cover 31.

[0035] As can be seen from the above description, an infrared heating device is installed on the inner side to shorten the path of heat to the yarn and improve heating efficiency.

[0036] Furthermore, a hot air circulation device is provided on the top of the oven cover 31.

[0037] As can be seen from the above description, a hot air circulation device is installed at the top, resulting in better and more uniform circulation.

[0038] Please refer to Figure 7 Furthermore, the guide wheel 34 includes an inlet side and an outlet side, with the inlet side equipped with a slurry-absorbing sponge 35.

[0039] Furthermore, the fibers are brushed across the surface of the absorbent sponge 35, which is positioned on the inlet side of the second guide wheel 34 through which the fibers pass.

[0040] As described above, incompletely cured coatings are prone to sticking to the guide roller 34. To address this issue, this invention first uses a scraper 2 to remove excess slurry from the fibers before they enter the oven 3, effectively controlling the coating thickness to be uniform and appropriate. After heating in the oven 3, the coating can be quickly dried and cured, preventing adhesion between the coating and the guide roller 34. Secondly, before the fibers enter the next guide roller 34, an absorbent sponge 35 is added to absorb any incompletely cured slurry from the fibers, ensuring that the fiber coating does not stick to the guide roller 34. Please refer to Figures 1-6One embodiment of this utility model is as follows: A device for producing fiber coatings includes an impregnation tank 1, a scraper 2, and an oven 3 arranged sequentially. The oven 3 includes an inlet end and an outlet end, and includes an oven cover 31 and a base 32 arranged sequentially from top to bottom. The oven cover 31 is an inverted box, and the sides of the oven cover 31 at the inlet and outlet ends are made of transparent material. The lower ends of the oven cover 31 at the inlet and outlet ends are provided with openings. The base 32 has a fixed surface on the side facing the oven cover 31. The fixed rod 33 is set at the inlet and outlet ends. The fixed rod 33 has a U-shaped structure, which includes a connecting section 331 and two straight sections 332, which are parallel to each other. The connecting section 331 is located outside the vertical projection range of the base 32. Three guide wheels 34 are set on the connecting section 331, and all guide wheels 34 are set on the same horizontal plane. Two infrared heating devices are evenly arranged on the inner side of the oven cover 31, and a hot air circulation device is set on the top of the oven cover 31.

[0041] The principle of this invention is as follows: After the yarn is coated with sizing liquid in the sizing tank 1, it enters the sizing scraper 2 to scrape off excess sizing material from the fibers, effectively controlling the coating thickness to be uniform and appropriate. Then, it enters the drying oven 3 through the first guide roller 34 set on the fixed rod 33, where it is uniformly heated by the infrared heating device and hot air circulation device. It then re-enters the drying oven 3 through the next guide roller 34 until the desired drying effect is achieved. After drying, the fibers are collected by an automatic winding machine.

[0042] Please refer to Figure 7 Embodiment two of this utility model is as follows: The difference between Example 2 and Example 1 is only that: the guide roller 34 includes an inlet side and an outlet side. The inlet side of the second guide roller 34 through which the fiber passes is provided with a slurry-absorbing sponge 35. The slurry that is not completely cured on the fiber is absorbed by the slurry-absorbing sponge 35 and then enters the drying oven 3 again through the next guide roller 34.

[0043] In summary, the equipment for producing fiber coatings provided by this utility model has the following advantages: 1. The fibers are dried by repeatedly entering and exiting the drying oven through the guide wheels, which reduces the space occupied by the equipment; and it can achieve suspended non-contact heat curing, making the fiber coating surface more uniform and smooth.

[0044] 2. Multi-layer curing can be achieved by increasing the number of impregnation tanks and drying ovens, thereby improving production efficiency.

[0045] 3. By adding a guide wheel assembly, the curing time of fibers in the oven can be extended, thereby improving the fiber collection rate and equipment production efficiency.

[0046] 3. By using built-in infrared heating and hot air circulation, and by setting all the guide wheels on the same horizontal plane, the heat distribution felt by the fibers is uniform, thus producing a high-quality fiber coating.

[0047] 4. The oven lid is equipped with a transparent observation port to facilitate observation of the state of the fiber surface coating.

[0048] 5. The guide wheel is installed outside the vertical projection range of the base by means of a fixing rod. This reduces the material requirements for the guide wheel and makes installation more convenient.

[0049] 6. Before the fiber enters the next guide roller, add a suction sponge to absorb any uncured slurry on the fiber to ensure that the fiber coating and the guide roller do not stick together.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An apparatus for producing a fiber coating, characterized in that, The device includes an impregnation tank and an oven arranged in sequence. The oven has openings at the inlet and outlet ends. At least two guide rollers are provided outside the openings at both the inlet and outlet ends. The guide rollers are arranged on the same horizontal plane and define a passage for fibers to reciprocate through the oven.

2. The apparatus for producing a fiber coating according to claim 1, characterized in that, The oven is equipped with an infrared heating device and a hot air circulation device.

3. The apparatus for producing a fiber coating according to claim 1, characterized in that, It also includes a scraper, which is disposed between the slurry tank and the drying oven.

4. The apparatus for producing a fiber coating according to claim 1, characterized in that, The oven includes an oven cover and a base arranged sequentially from top to bottom. The oven cover is an inverted box, and the sides of the oven cover at the inlet and outlet ends are made of transparent material.

5. The apparatus for producing a fiber coating according to claim 4, characterized in that, The oven cover has openings at the lower ends of both the inlet and outlet ends.

6. The apparatus for producing a fiber coating according to claim 4, characterized in that, The base is provided with a fixing rod on the side facing the oven cover, and a guide wheel is provided on the fixing rod.

7. The apparatus for producing a fiber coating according to claim 6, characterized in that, The fixing rod has a U-shaped structure, which includes a connecting section and two straight sections that are parallel to each other. The connecting section is located outside the vertical projection range of the base, and a guide wheel is provided on the connecting section.

8. The apparatus for producing a fiber coating according to claim 4, characterized in that, An infrared heating device is provided on the inside of the oven lid.

9. The apparatus for producing a fiber coating according to claim 4, characterized in that, The top of the oven lid is equipped with a hot air circulation device.

10. The apparatus for producing a fiber coating according to claim 1, characterized in that, The guide wheel for changing the direction of the line includes an inlet side and an outlet side, and the inlet side is provided with a slurry-absorbing sponge.

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