A fluorescent fabric surface coating device

Abstract

This invention discloses a fluorescent fabric surface coating device, including a first coating roller and a second coating roller, which are arranged along the fabric conveying direction for coating the front side of the fabric. An adsorption platform is provided between the first and second coating rollers, the adsorption platform having an upward-facing upper surface located on the underside of the fabric and opposite to the reverse side. This invention uses the first coating roller to coat the fabric surface, forming a fluorescent coating. Then, through negative pressure adsorption, the reverse side of the fabric is adsorbed, allowing the fluorescent coating to be absorbed into the fabric, increasing the coating adhesion depth and thus improving the adhesion effect of the fluorescent coating. A second coating is then applied to the fabric surface to replenish the amount of coating liquid on the front side, ensuring the effective coating of the fluorescent coating on the front side of the fabric.

Description

Technical Field

[0001] This utility model relates to a fabric combustion device, and more specifically, to a fluorescent fabric surface coating device. Background Technology

[0002] Fluorescent fabrics require a fluorescent coating to be applied to their surface during production, giving them a fluorescent effect and good visual appeal, making them suitable for outdoor workwear. Currently, there are two production methods: immersion coating and coating. The coating method involves using a coating roller to apply a fluorescent coating to the fabric surface. However, during coating, most of the coating material typically remains on one side, resulting in poor penetration, especially for thicker fabrics or those with poor permeability, affecting the coating depth and adhesion.

[0003] Therefore, a new solution is needed to address this problem. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a device for coating fluorescent fabric surfaces.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fluorescent fabric surface coating device, comprising a first coating roller and a second coating roller, the first coating roller and the second coating roller being arranged along the fabric conveying direction for coating the front side of the fabric; an adsorption platform is provided between the first coating roller and the second coating roller, the adsorption platform having an upward-facing upper platform surface, the upper platform surface being located on the lower side of the fabric and opposite to the reverse side of the fabric, the reverse side of the fabric being in contact with the upper platform surface, the adsorption platform having a hollow inner cavity, the hollow inner cavity being connected to a negative pressure pipe, which can form a negative pressure within the hollow inner cavity; the upper platform surface having a through groove communicating with the hollow inner cavity.

[0006] The present invention is further configured such that several sets of through grooves are opened and arranged along the conveying direction of the fabric; along the width direction of the fabric, the width of the through grooves is greater than the width of the fabric.

[0007] The present invention is further provided that a filter screen is installed at the through groove.

[0008] The present invention is further configured such that a negative pressure interface is provided on the lower side of the hollow inner cavity, and the negative pressure interface is connected to a negative pressure air source through a negative pressure pipe.

[0009] The present invention is further configured such that a support frame is provided above the adsorption table, and a pressing scraper is installed on the lower side of the support frame. The lower side of the pressing scraper and the upper table surface can allow the fabric to pass through, and the fabric can contact the surface of the upper table surface.

[0010] The present invention is further configured such that the height of the pressure scraper is adjustable.

[0011] The present invention is further configured such that a support rod is fixedly connected to the upper part of the pressing scraper, and a lifting adjustment rod is fixedly connected to the upper part of the support rod. The upper end of the lifting adjustment rod passes through the support frame and is threaded with a nut. The lifting adjustment rod can slide up and down relative to the support frame, and a spring elastically presses against the support rod and the support frame.

[0012] The present invention is further configured such that a pressing part is formed between the upper platform and the adjacent through groove, and the pressing scraper is located directly above the pressing part.

[0013] The present invention is further configured such that the first coating roller and the second coating roller are both coating screen rollers, the two ends of the coating screen roller are rotatably connected to the frame, and a scraper is provided in the middle of the coating screen roller. The scraper abuts against the lower inner circumference of the coating screen roller and is used to squeeze the slurry in the inner cavity of the coating screen roller downward to coat the front side of the fabric.

[0014] The present invention is further configured such that the filter screen is installed in multiple layers and can be disassembled and replaced; the filter screen is fixed by screws.

[0015] In summary, this utility model has the following beneficial effects:

[0016] Two coating rollers can continuously apply two coatings to the fabric surface, improving the adhesion rate of the fluorescent coating. The first coating roller applies a fluorescent coating to the fabric surface. Then, negative pressure adsorption is applied to the reverse side of the fabric, allowing the fluorescent coating to be absorbed into the fabric, increasing the coating's adhesion depth and thus improving the adhesion effect. Finally, a second coating is applied to the fabric surface to replenish the amount of coating liquid on the front side, ensuring the effective application of the fluorescent coating on the front of the fabric. Attached Figure Description

[0017] Figure 1 This is a perspective view of a fluorescent fabric surface coating device in this embodiment;

[0018] Figure 2 This is a cross-sectional view of a fluorescent fabric surface coating device in this embodiment;

[0019] Figure 3 This is a cross-sectional view of the adsorption stage in this embodiment;

[0020] Reference numerals: 1. First coating roller; 2. Second coating roller; 3. First support roller; 4. Second support roller; 5. Scraper; 6. Guide roller; 7. Adsorption table; 71. Upper table surface; 72. Hollow inner cavity; 73. Through groove; 74. Filter screen; 75. Negative pressure interface; 76. Pressing part; 8. Support frame; 9. Pressing scraper; 91. Support rod; 92. Lifting adjustment rod; 93. Spring; 94. Nut. 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 embodiment discloses a fluorescent fabric surface coating device, referring to... Figures 1-3 As shown, it includes a first coating roller 1 and a second coating roller 2. The first coating roller 1 and the second coating roller 2 are arranged along the conveying direction of the fabric and can coat the front side (i.e. the upper side) of the fabric to form two coatings.

[0023] The first coating roller 1 is supported by a first support roller 3 on its lower side, and the second coating roller 2 is supported by a second support roller 4 on its lower side, ensuring that the two coating rollers can stably contact the fabric. In addition, two guide rollers 6 are installed on both sides of the coating device to guide the input and output fabric, thereby maintaining the stability and smoothness of the fabric transport.

[0024] An adsorption table 7 is installed between the first coating roller 1 and the second coating roller 2, and the adsorption table 7 is fixed to the frame of the equipment. The adsorption table 7 has an upward-facing upper surface 71, which is located on the underside of the fabric; the upper surface 71 can approach and contact the reverse side (i.e., the underside) of the fabric.

[0025] A hollow inner cavity 72 is provided inside the adsorption stage 7. The hollow inner cavity 72 is connected to a negative pressure pipe. A negative pressure can be formed in the hollow inner cavity 72 through an external negative pressure gas source.

[0026] A groove 73 is provided on the upper surface 71, which connects to the hollow inner cavity 72. Under the negative pressure of the hollow inner cavity 72, a negative pressure adsorption force can be formed at the groove 73. Under the action of negative pressure, the reverse side (i.e., the lower side) of the fabric can adhere to the upper side of the groove 73, and a downward suction force can be formed on the lower side of the fabric.

[0027] During the coating process of fluorescent fabric, the fabric first passes through the first coating roller 1 to coat the front side of the fabric, and then passes through the upper platform 71. The groove 73 of the upper platform 71 forms a negative pressure adsorption force, which can adsorb the coating liquid originally distributed on the front side of the fabric downward, so that part of the coating liquid can penetrate downward and accelerate into the fabric, and some can penetrate into the reverse side of the fabric, accelerating the coating penetration and improving the depth and fastness of the coating adhesion. Then, the fabric passes through the second coating roller 2 for coating. Through the second coating roller 2, the amount of coating liquid on the front side of the fabric can be replenished, ensuring the coating effect on the front side of the fabric.

[0028] In this embodiment, several sets of through grooves 73 are provided, generally three sets, and arranged along the fabric conveying direction. Along the width direction of the fabric, the width of the through grooves 73 is greater than the width of the fabric. The through grooves 73 have a larger width, which can cover all positions in the width direction of the fabric, ensuring that the fabric can be effectively subjected to negative pressure adsorption.

[0029] A negative pressure port 75 is provided on the lower side of the hollow inner cavity 72, and the negative pressure port 75 is connected to a negative pressure air source through a negative pressure pipe.

[0030] During the negative pressure adsorption process on the back of the fabric at the channel 73, some of the coating liquid is splashed through the back of the fabric and onto the channel 73. A filter screen 74 is installed at the channel 73 to reduce the amount entering the hollow inner cavity 72.

[0031] The filter 74 can be installed in multiple layers and can be disassembled and replaced. Specifically, the filter 74 can be installed and removed using screws or other snap-fit ​​structures to allow for easy replacement. During use, the clogging status of the filter 74 can be observed, and it can be disassembled and replaced as needed.

[0032] Furthermore, a support frame 8 is provided above the adsorption table 7, and a pressure scraper 9 is installed on the lower side of the support frame 8. The lower side of the pressure scraper 9 and the upper table surface 71 allow the fabric to pass through. Under the action of negative pressure, the fabric can contact the surface of the upper table surface 71 and move backward stably while adhering to the upper table surface 71.

[0033] The height of the pressure scraper 9 is adjustable. By adjusting the height of the pressure scraper 9, the lower edge of the pressure scraper 9 can be brought close to the fabric surface. The lower edge of the pressure scraper 9 can be elastically bent, pressing against the fabric surface. Through squeezing, the paste on the upper side of the fabric can be compressed, allowing the paste to penetrate the fabric more easily and improving the depth of dyeing.

[0034] Reference Figure 3As shown, a support rod 91 is fixedly connected to the upper part of the pressure scraper 9, and a lifting adjustment rod 92 is fixedly connected to the upper part of the support rod 91. The upper end of the lifting adjustment rod 92 passes through the support frame 8 and is threaded with a nut. The nut 94 is located on the upper side of the support frame 8 and can form a limit.

[0035] The lifting adjustment rod 92 passes through the through hole of the support frame 8 and can slide up and down relative to the support frame 8 for adjustment. A spring 93 is fitted on the lifting adjustment rod 92, and the spring 93 can elastically resist the support rod 91 and the support frame 8.

[0036] During the adjustment process, the height of the lifting adjustment rod 92 can be adjusted by using the threaded adjustment nut 94, thereby adjusting the height and position of the lifting adjustment rod 92, the support rod 91, and the pressure scraper 9, so that the pressure scraper 9 can press the fabric with appropriate force.

[0037] Furthermore, a pressing part 76 is formed between the upper surface 71 and the adjacent through groove 73, and the pressure scraper 9 is located directly above the pressing part 76. The pressing part 76 and the pressure scraper 9 are directly opposite each other, which can effectively apply pressure to the fabric and avoid the position of the through groove 73.

[0038] Furthermore, the first coating roller 1 and the second coating roller 2 can be coating mesh rollers. The two ends of the coating mesh roller are rotatably connected to the frame, and a doctor blade 5 is disposed in the middle of the coating mesh roller, abutting against the lower inner circumference of the coating mesh roller. The coating mesh roller has a cylindrical mesh structure, hollow inside and filled with the slurry to be coated. Under the action of the doctor blade 5, the slurry can overflow from the mesh openings on the surface, thus coating the fabric surface. By using coating mesh rollers as the first coating roller 1 and the second coating roller 2, the fabric surface can be effectively coated. Alternatively, other types of coating rollers can be used for the first coating roller 1 and the second coating roller 2, as long as coating is achieved.

[0039] 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 device for coating the surface of fluorescent fabric, characterized in that, The system includes a first coating roller (1) and a second coating roller (2), which are arranged along the fabric conveying direction for coating the front side of the fabric. An adsorption platform (7) is provided between the first coating roller (1) and the second coating roller (2). The adsorption platform (7) has an upward-facing upper platform surface (71), which is located on the lower side of the fabric and opposite to the reverse side of the fabric. The reverse side of the fabric is in contact with the upper platform surface (71). The adsorption platform (7) has a hollow inner cavity (72), which is connected to a negative pressure pipe to form a negative pressure inside the hollow inner cavity (72). The upper platform surface (71) has a through groove (73) that communicates with the hollow inner cavity (72).

2. The fluorescent fabric surface coating apparatus according to claim 1, characterized in that, Several sets of through grooves (73) are opened and arranged along the conveying direction of the fabric; along the width direction of the fabric, the width of the through grooves (73) is greater than the width of the fabric.

3. The fluorescent fabric surface coating apparatus according to claim 1, characterized in that, A filter screen (74) is installed at the through groove (73).

4. The fluorescent fabric surface coating apparatus according to claim 1, characterized in that, A negative pressure port (75) is provided on the lower side of the hollow inner cavity (72), and the negative pressure port (75) is connected to a negative pressure air source through a negative pressure pipe.

5. The fluorescent fabric surface coating apparatus according to claim 1, characterized in that, A support frame (8) is provided above the adsorption platform (7), and a pressing scraper (9) is installed on the lower side of the support frame (8). The lower side of the pressing scraper (9) and the upper platform (71) can allow the fabric to pass through, and the fabric can contact the surface of the upper platform (71).

6. The fluorescent fabric surface coating apparatus according to claim 5, characterized in that, The height of the pressing scraper (9) is adjustable.

7. The fluorescent fabric surface coating apparatus according to claim 6, characterized in that, The upper part of the pressing scraper (9) is fixedly connected to a support rod (91), and the upper part of the support rod (91) is fixedly connected to a lifting adjustment rod (92). The upper end of the lifting adjustment rod (92) passes through the support frame (8) and is threaded with a nut. The lifting adjustment rod (92) can slide up and down relative to the support frame (8). A spring (93) elastically presses against the support rod (91) and the support frame (8).

8. The fluorescent fabric surface coating apparatus according to claim 7, characterized in that, The upper platform (71) has a pressing part (76) formed between the adjacent through groove (73), and the pressing scraper (9) is located directly above the pressing part (76).

9. The fluorescent fabric surface coating apparatus according to claim 1, characterized in that, The first coating roller (1) and the second coating roller (2) are both coating screen rollers. The two ends of the coating screen roller are rotatably connected to the frame. A scraper (5) is provided in the middle of the coating screen roller. The scraper (5) abuts against the lower inner circumference of the coating screen roller and is used to squeeze the slurry in the inner cavity of the coating screen roller downward to coat the front side of the fabric.

10. The fluorescent fabric surface coating apparatus according to claim 3, characterized in that, The filter (74) has multiple layers and can be disassembled and replaced; the filter (74) is fixed by screws.

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