An apparatus for producing a multi-layer nano-thermal radiation fabric

By using a coating device that simultaneously applies coating and extrusion to both sides, the problem of agent penetration into multi-layer nano-thermal radiation fabric composites has been solved, improving coating efficiency and bonding strength, and enhancing the overall performance of the fabric.

CN120363586BActive Publication Date: 2026-04-17GAOFAN (ZHEJIANG) INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GAOFAN (ZHEJIANG) INFORMATION TECH CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, when applying a composite agent to multi-layer nano-thermal radiation fabric, the agent cannot penetrate into the fabric, resulting in poor composite bonding.

Method used

The adhesive applicator employs a double-sided synchronous coating device. The adhesive applicator mechanism achieves the penetration of the compound agent through the cooperation of the applicator nozzle and the control wheel, and enhances the adhesion through the squeezing and scraping operations.

Benefits of technology

It improves the coating efficiency and adhesion strength of multi-layer fabrics, enhances the bonding effect between fabrics, and reduces material waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of fabric production equipment technology, specifically to equipment for producing multi-layer nano-thermal radiation fabric. The equipment includes a mounting frame on which a feeding roller, a gluing device, a pressing roller, and a take-up roller are sequentially mounted. The feeding rollers are arranged in several groups, arranged vertically. The number of feeding rollers, fabric, and gluing devices is matched. A guide roller is also mounted on the mounting frame. Several groups of fabric, guided by the guide roller, pass through their corresponding gluing devices, converge, pass through the pressing roller, and finally connect to the take-up roller. The gluing device includes two sets of gluing mechanisms, with the fabric passing between these two sets. This invention, through the gluing mechanism, applies glue to the fabric surface using injection pressure, allowing the composite agent to penetrate the fabric's interior and form a stronger mechanical bond with the fabric fibers. This enhances the adhesion between the layers of fabric and improves the overall strength of the multi-layer fabric.
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Description

Technical Field

[0001] This invention relates to the field of fabric production equipment technology, specifically to a device for producing multilayer nano-thermal radiation fabrics. Background Technology

[0002] With the rapid development of science and technology and people's increasing awareness of environmental protection and energy efficiency, nanomaterials and their applications have gradually become a research hotspot. Multilayer nano-thermal radiation fabrics, by stacking materials with different functions together, can give full play to the characteristics of each layer of materials and form a composite effect.

[0003] A search revealed a Chinese patent document with patent number CN202110971434.6 that discloses a production equipment for high-strength TPU multilayer composite fabric. In this method, glue flows out from a glue-brushing roller, and a telescopic plate smooths the surface of the glue-brushing roller, allowing the glue to adhere evenly to the roller and then be brushed onto the fabric. This ensures that the glue adheres evenly to the fabric during the brushing process, preventing the fabric from coming apart after pressing.

[0004] While the aforementioned technologies can evenly apply adhesive to the fabric surface, for the composite production of multi-layer nano-thermal radiation fabrics, both the top and bottom surfaces of the inner fabric need to be coated with a bonding agent. Therefore, the bonding agent needs to be applied to both sides simultaneously. Furthermore, the application method for the bonding agent varies depending on the fabric material. For high-density fabrics, conventional application methods prevent the bonding agent from penetrating the fabric, resulting in poor bonding between the fabric layers. Summary of the Invention

[0005] Technical problems to be solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device for producing multi-layer nano-thermal radiation fabric, which can solve the problem that the composite agent cannot penetrate into the fabric when the fabric surface is coated with the composite agent in the prior art.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This invention provides an apparatus for producing multilayer nano-thermal radiation fabric, comprising a mounting frame on which a feeding roller, a gluing device, a pressing roller, and a winding roller are sequentially mounted. The feeding rollers are arranged in several groups distributed vertically, and the number of feeding rollers, fabric, and gluing devices is matched. A guide roller is also mounted on the mounting frame. Several groups of fabric pass through corresponding gluing devices under the guidance of the guide roller, converge, pass through the pressing roller, and finally connect to the winding roller. The gluing device includes two gluing mechanisms, and the fabric passes between the two gluing mechanisms. The two gluing mechanisms are mounted between two sets of fixed seats on the mounting frame. The gluing mechanism is used to apply a composite agent to the surface of the fabric and apply pressure to make the composite agent penetrate into the fabric.

[0010] Furthermore, the adhesive applicator includes an adhesive applicator nozzle installed between two sets of fixed seats. One end of the adhesive applicator nozzle is installed in a connected reagent tank, and the other end of the adhesive applicator nozzle faces the fabric and is provided with evenly distributed one-way valves.

[0011] Furthermore, the glue application mechanism also includes a mounting shaft inserted into a fixed base, a control wheel mounted on the surface of the mounting shaft, a connecting cavity provided on the side of the glue application nozzle facing the control wheel, a control protrusion mounted on the surface of the control wheel, a piston block mounted on the connecting cavity of the glue application nozzle by a spring, a motor mounted on the fixed base, the output shaft of the motor being drivenly connected to the mounting shaft, and a one-way valve provided at the connection between the medicine tank and the glue application nozzle.

[0012] Furthermore, the surface of the control wheel is equipped with several sets of control protrusions, which are distributed in a circumferential manner at equal intervals.

[0013] Furthermore, the outer end surface of the control bump is configured to be pointed.

[0014] Furthermore, the surface of the glue applicator with the one-way valve is set as an arc-shaped surface, and a sliding groove is provided on the arc-shaped surface of the glue applicator. The sliding grooves are distributed one-to-one below the one-way valve, and two sets of baffles are inserted and installed inside the sliding grooves.

[0015] Furthermore, a fixing rod is fixedly connected to the applicator nozzle, and the vertical section of the fixing rod has linearly distributed threaded holes. A connecting rod is installed on the fixing rod through bolts and threaded holes, and the connecting rod is used to apply the compound to the surface of the coating material.

[0016] Furthermore, the connecting rod is configured as an equilateral triangle with the apex of the triangle facing the dispensing nozzle.

[0017] Furthermore, a liquid collection tank is fixedly connected to the surface of the glue applicator nozzle in the glue applicator located below the fabric, and the length of the liquid collection tank is greater than the length of the connecting rod.

[0018] Furthermore, gears are fixedly connected to the same end surface of both sets of mounting shafts, the two sets of gears are meshed, and the output shaft of the motor is driven by one of the sets of mounting shafts.

[0019] Beneficial effects

[0020] The technical solution provided by this invention has the following advantages compared with known public technologies:

[0021] The present invention, through the structural design of the adhesive coating device, allows the fabric to pass through two sets of adhesive coating mechanisms in the adhesive coating device when the fabric is coated, thereby enabling simultaneous double-sided coating of the fabric during the adhesive coating process and improving coating efficiency.

[0022] Furthermore, when the coating mechanism applies adhesive to the fabric surface, it uses injection pressure to allow the composite agent to penetrate into the fabric interior and form a stronger mechanical bond with the fabric fibers, thereby enhancing the adhesion between the layers of fabric and improving the overall strength of the multi-layer fabric.

[0023] Meanwhile, before applying adhesive to the fabric, indentations can be made on the fabric surface to increase its roughness, providing more space for the laminating agent to flow in, enhancing the interlocking between the laminating agent and the fabric fibers, thereby improving the bonding strength between multiple layers of fabric.

[0024] After the adhesive coating process is completed on the fabric, the composite agent can be brushed and spread evenly on the fabric surface, and excess composite agent can be diverted and collected to reduce material waste. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0027] Figure 2 This is a schematic cross-sectional view of the overall structure in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the adhesive application device structure installation in an embodiment of the present invention;

[0029] Figure 4 This is a cross-sectional schematic diagram of the adhesive coating device structure in an embodiment of the present invention;

[0030] Figure 5 For the present invention Figure 4Enlarged schematic diagram of the structure at point A in the middle;

[0031] Figure 6 This is a schematic diagram of the one-way valve nozzle structure distribution in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the control wheel structure drive in an embodiment of the present invention.

[0033] The labels in the diagram represent: 1. Mounting frame; 2. Feeding roller; 3. Rewinding roller; 4. Fabric; 5. Guide roller; 6. Glue applicator; 601. Fixing seat; 602. Glue applicator nozzle; 603. One-way valve nozzle; 604. Mounting shaft; 605. Control wheel; 606. Control protrusion; 607. Piston block; 608. Spring; 609. Slide groove; 610. Baffle; 611. Motor; 612. Gear; 613. Fixing rod; 614. Connecting rod; 615. Chemical tank; 616. Liquid collection tank; 7. Extrusion roller; 8. Electric telescopic rod. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0035] The present invention will be further described below with reference to embodiments.

[0036] Example:

[0037] Please refer to the appendix. Figure 1-7This solution proposes an apparatus for producing multilayer nano-thermal radiation fabrics. A feeding roller 2 and a winding roller 3 are respectively installed at both ends of a mounting frame 1. The feeding roller 2 is used to fix and unwind the fabric 4 to be laminated, while the winding roller 3 is used to wind up the laminated fabric 4. Several groups of feeding rollers 2 are arranged vertically, with the number of feeding rollers 2 matching the number of fabrics 4 to be laminated. Based on the vertical positional relationship of the several groups of fabrics 4, the several groups of fabrics 4 are sequentially mounted on the several groups of feeding rollers 2, allowing for precise lamination and connection of the several groups of fabrics 4 according to production standards. Guide rollers 5 are installed on the surface of the mounting frame 1 to guide the transport of the fabric 4. Several sets of adhesive application devices 6 are also installed on the surface of the mounting frame 1, with the number of adhesive application devices 6 matching the number of feeding rollers 2. Under the guidance of the guide rollers 5, the fabric 4 on the feeding rollers 2 passes through the adhesive application devices 6, where a laminating agent is applied to the surface of the fabric 4. Two sets of extrusion rollers 7 are mounted on the surface of the mounting frame 1. After several sets of fabric 4 are coated with a composite agent by the adhesive applicator 6, they pass through the two sets of extrusion rollers 7 under the guidance of the guide rollers 5. The operation of the two sets of extrusion rollers 7 can extrude the several sets of fabric 4, causing them to bond together with the composite agent to form a composite connection of multiple layers of fabric 4. The extrusion rollers 7 are mounted on the mounting frame 1 via an electric telescopic rod 8. The distance between the two sets of extrusion rollers 7 can be adjusted by the electric telescopic rod 8, allowing the two sets of extrusion rollers 7 to extrude and connect fabric 4 with different layers and thicknesses. Finally, the bonded fabric 4 is wound up and collected by the take-up roller 3.

[0038] Specifically, the adhesive application device 6 includes two sets of fixed seats 601 mounted on the mounting frame 1, which are respectively installed on both sides of the mounting frame 1. Two sets of adhesive application mechanisms are installed between the two sets of fixed seats 601. Under the guidance of the guide roller 5, the fabric 4 passes between the two sets of adhesive application mechanisms, so that the surface of the fabric 4 can be coated with the composite agent on both sides at the same time according to the adhesive application requirements.

[0039] More specifically, the adhesive application mechanism includes an adhesive application nozzle 602 installed between two sets of fixed seats 601. The adhesive application nozzle 602 is configured with a "T" shape. One end of the adhesive application nozzle 602 is fitted with a connected agent tank 615. The end of the adhesive application nozzle 602 facing the fabric 4 is provided with evenly distributed one-way valves 603. The adhesive application nozzle 602 can discharge the composite agent in the agent tank 615, and the one-way valves 603 can be used to apply the composite agent to the surface of the fabric 4, which facilitates the subsequent bonding of several sets of fabrics 4.

[0040] The adhesive application mechanism also includes a mounting shaft 604 inserted into a fixed base 601. A control wheel 605 is fixedly connected to the surface of the mounting shaft 604. The other end of the adhesive application nozzle 602 faces the control wheel 605, and a control protrusion 606 is mounted on the surface of the control wheel 605. A piston block 607 is inserted inside the end of the adhesive application nozzle 602 facing the control wheel 605. A spring 608 is fixedly connected to one end of the piston block 607 inside the adhesive application nozzle 602. The other end of the spring 608 is connected to the inner wall of the adhesive application nozzle 602. Under the elastic force of the spring 608, the piston block 607 is pushed out from inside the adhesive application nozzle 602 and abuts against the surface of the control wheel 605. A motor 611 is mounted on the surface of the fixed base 601. The output shaft of the motor 611 is connected to the mounting shaft 604 of one of the adhesive application mechanisms. When the fabric 4 passes between the two adhesive application mechanisms, the motor 611 is turned on to control the adhesive application mechanism to automatically apply the composite agent to the surface of the fabric 4. When the mounting shaft 604 rotates, it connects to the control wheel 605, which in turn drives the control protrusion 606 to rotate. During this rotation, the control protrusion 606 periodically contacts the piston block 607. When the control protrusion 606 abuts against the surface of the piston block 607, it pushes the piston block 607 into the applicator nozzle 602, compressing the spring 608. As the piston block 607 slides into the applicator nozzle 602, it simultaneously compresses the compound agent inside the nozzle, causing the compound agent to be discharged through the one-way valve nozzle 603 under pressure. This further enables the compound agent to be applied to the surface of the fabric 4. After being discharged under pressure, the compound agent penetrates into the interior of the fabric 4 under pressure, forming a stronger mechanical bond with the fibers of the fabric 4. This enhances the adhesion between the layers of fabric 4 and improves the overall strength of the multi-layer fabric.

[0041] A one-way valve is installed at the connection between the reagent tank 615 and the applicator nozzle 602, ensuring that the compound in the reagent tank 615 can only be delivered to the applicator nozzle 602 in one direction. As the control wheel 605 rotates continuously, the control protrusion 606 cannot contact the surface of the piston block 607. Therefore, the piston block 607 is pushed out of the applicator nozzle 602 by the elastic force of the spring 608. As the piston block 607 slides outward in the applicator nozzle 602, it draws the compound from the reagent tank 615 into the applicator nozzle 602, further replenishing the compound in the applicator nozzle 602 and facilitating the next discharge of the compound from the applicator nozzle 602 during the next piston movement of the piston block 607.

[0042] Meanwhile, several sets of control protrusions 606 are installed on the surface of the control wheel 605. The several sets of control protrusions 606 are distributed in a circumferentially spaced manner. By setting the number of control protrusions 606, the control frequency of the piston block 607 can be adjusted to achieve the control of the coating frequency of the composite agent. This facilitates the uniform coating of the composite agent on the surface of the fabric 4 and avoids excessive dosage of the composite agent, which would lead to waste of the composite agent.

[0043] The difference is that the surface of the glue applicator 602 with the one-way valve 603 is set as an arc surface. This further reduces the friction between the glue applicator 602 and the fabric 4 when the glue applicator 6 slides on the surface of the glue applicator 602, thus preventing the surface of the fabric 4 from being scratched.

[0044] The adhesive applicator 602 has a groove 609 on one side surface where a one-way valve nozzle 603 is located. The number of grooves 609 matches the number of one-way valve nozzles 603, and several sets of grooves 609 are distributed one-to-one below the one-way valve nozzles 603. Two sets of baffles 610 are inserted and installed inside the grooves 609. By sliding the baffles 610 in the grooves 609, the one-way valve nozzles 603 can be blocked, further controlling the amount of composite agent discharged by the one-way valve nozzles 603. Through the independent adjustment of several sets of one-way valve nozzles 603, the adhesive applicator 6 can control the application position and dosage on the surface of the fabric 4 when applying the composite agent, further achieving precise control of the composite agent and improving the composite bonding effect between the fabrics 4. Furthermore, the sliding of the baffles 610 in the grooves 609 has a damping effect, allowing the baffles 610 to be fixed after sliding, thereby effectively controlling the exposure of the one-way valve nozzles 603.

[0045] The outer end surface of the control protrusion 606 is set to be pointed, so that when the two sets of adhesive coating mechanisms are running synchronously, the two sets of control wheels 605 will clamp the fabric 4. When the two sets of control wheels 605 are relatively stationary, the control protrusions 606 on the surfaces of the two sets of control wheels 605 are staggered. Furthermore, during the rotation of the control wheels 605, the control protrusions 606 will squeeze the fabric 4, further causing creases on the surface of the fabric 4 and increasing the roughness of the surface of the fabric 4. The rough surface can provide more space for the flow of the composite agent, enhance the interlocking between the composite agent and the fibers of the fabric 4, and thus improve the bonding strength between the multilayer fabrics 4.

[0046] A fixing rod 613 is fixedly connected to the surface of the applicator 602. The fixing rod 613 is L-shaped, and the vertical section of the fixing rod 613 has linearly distributed threaded holes. A connecting rod 614 is installed on the fixing rod 613 via bolts and threaded holes. When the applicator 602 is in contact with the surface of the fabric 4 to apply adhesive, the connecting rod 614 can smooth and even out the adhesive on the surface of the fabric 4 as the fabric 4 slides on the surface of the connecting rod 614, further improving the adhesion of the adhesive on the surface of the fabric 4.

[0047] The connecting rod 614 is designed as an equilateral triangle with its tip facing the applicator nozzle 602. This allows the connecting rod 614 to push excess adhesive to both sides as it applies the compounding agent to the fabric 4 surface during transport, thus removing excess adhesive. A collection tank 616 is fixedly connected to the applicator nozzle 602 in the applicator mechanism located below the fabric 4. The length of the collection tank 616 is greater than the length of the connecting rod 614, allowing the connecting rod 614 in the upper applicator mechanism to guide excess adhesive into the collection tank 616, achieving collection of excess adhesive. By adjusting the height of the connecting rod 614 on the fixed rod 613, different distances can be created between the connecting rod 614 and the fabric 4 surface, allowing for scraping of the adhesive at different heights, further enhancing the structural functionality of the device.

[0048] It is worth noting that gears 612 are fixedly connected to the same end surface of both sets of mounting shafts 604, and the two sets of gears 612 are meshed together. After the motor 611 is turned on, it will synchronously drive the control wheels 605 in the two sets of glue-applying mechanisms to rotate, further controlling the synchronous operation of the two sets of glue-applying mechanisms. Moreover, the two sets of control wheels 605 in the two sets of glue-applying mechanisms rotate in opposite directions, so that the two sets of control wheels 605 can push the fabric 4 to one side during rotation, further realizing the rapid passage of the fabric 4 between the two sets of glue-applying mechanisms, thereby improving the glue-applying efficiency of the glue-applying device 6 on the fabric 4.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An apparatus for producing multilayer nano-thermal radiation fabric, comprising a mounting frame (1), on which a feeding roller (2), a gluing device (6), a pressing roller (7), and a take-up roller (3) are sequentially mounted. The feeding rollers (2) are arranged in several groups arranged vertically. The number of feeding rollers (2), fabric (4), and gluing device (6) are matched. A guide roller (5) is also mounted on the mounting frame (1). Several groups of fabric (4) pass through the corresponding gluing device (6) under the guidance of the guide roller (5), converge, pass through the pressing roller (7), and finally connect to the take-up roller (3). The apparatus is characterized in that... The adhesive applicator (6) includes two sets of adhesive applicators. The fabric (4) passes between the two sets of adhesive applicators. The two sets of adhesive applicators are installed on the mounting frame (1) between two sets of fixed seats (601). The adhesive applicator is used to apply a composite agent to the surface of the fabric (4) and pressurize the composite agent to make it penetrate into the fabric (4). The adhesive applicator includes an adhesive applicator (602) installed between two sets of fixed seats (601). One end of the adhesive applicator (602) is installed in a connected medicine tank (615), and the other end of the adhesive applicator (602) faces the fabric (4) and is provided with evenly distributed one-way valves (603). The glue application mechanism also includes a mounting shaft (604) inserted into a fixed base (601). A control wheel (605) is mounted on the surface of the mounting shaft (604). A connecting cavity is provided on the side of the glue application nozzle (602) facing the control wheel (605). A control protrusion (606) is mounted on the surface of the control wheel (605). A piston block (607) is mounted in the connecting cavity of the glue application nozzle (602) through a spring (608). A motor (611) is mounted on the fixed base (601). The output shaft of the motor (611) is connected to the mounting shaft (604). A one-way valve is provided at the connection between the medicine tank (615) and the glue application nozzle (602). The surface of the control wheel (605) is equipped with a number of control bumps (606), and the number of control bumps (606) are distributed in a circumferentially spaced manner.

2. The apparatus for producing a multi-layer nano-thermal radiation fabric according to claim 1, wherein, The outer end surface of the control bump (606) is set in a pointed shape.

3. The apparatus for producing a multi-layer nano-thermal radiation fabric according to claim 1, wherein, The glue applicator (602) has an arc-shaped surface on one side where a one-way valve (603) is located. A groove (609) is provided on the arc-shaped surface of the glue applicator (602). The grooves (609) are distributed one-to-one below the one-way valve (603). Two sets of baffles (610) are inserted and installed inside the grooves (609).

4. The apparatus for producing a multi-layer nano-thermal radiation fabric according to claim 1, wherein, A fixing rod (613) is fixedly connected to the applicator nozzle (602). The vertical section of the fixing rod (613) is provided with linearly distributed threaded holes. A connecting rod (614) is installed on the fixing rod (613) through bolts and threaded holes. The connecting rod (614) is used to apply the surface composite agent to the surface material (4).

5. The equipment for producing multilayer nano-thermal radiation fabric according to claim 4, characterized in that, The connecting rod (614) is configured as an equilateral triangle with the apex of the triangle facing the nozzle (602).

6. The apparatus for producing a multi-layer nano-thermal radiation fabric according to claim 5, wherein, A liquid collection tank (616) is fixedly connected to the surface of the glue applicator (602) located below the fabric (4), and the length of the liquid collection tank (616) is greater than the length of the connecting rod (614).

7. The apparatus for producing a multi-layer nano-thermal radiation fabric according to claim 1, wherein, Gears (612) are fixedly connected to the same end surface of both sets of mounting shafts (604), and the two sets of gears (612) are meshed together. The output shaft of the motor (611) is connected to one of the sets of mounting shafts (604) in a transmission connection.

Citation Information

Patent Citations

  • High-strength TPU multi-layer composite fabric production equipment

    CN113665222A

  • Gluing device for valve bag production

    CN114602728A

  • Gluing device for composite fabric

    CN208944463U