Enhanced UD non-woven cloth equipment

Abstract

The utility model relates to enhanced UD non-woven cloth equipment which comprises a releasing assembly, a cloth arranging assembly, a cloth dipping assembly, a forming curing assembly, a post-processing assembly and a collecting assembly. The right end of the releasing assembly is connected with the cloth arranging assembly, the right end of the cloth arranging assembly is connected with the cloth dipping assembly, the right end of the cloth dipping assembly is connected with the forming and curing assembly, and the right end of the forming and curing assembly is connected with the collecting assembly. The releasing assembly comprises a creel, a guide roller and a yarn splitting frame; the output end of the creel is connected with the guide roller, the output end of the guide roller is connected with the yarn splitting frame, and the yarn splitting frame is connected with the cloth arranging assembly. The utility model aims to provide the enhanced UD non-woven cloth equipment for overcoming the existing defects, so that the production efficiency is improved, the production cost is reduced, and the stability and the consistency of the product quality can be ensured.

Description

Technical Field

[0001] This utility model relates to a device for reinforcing UD nonwoven fabric. Background Technology

[0002] Ultra-high molecular weight polyethylene (UHMWPE) fiber has an extremely high molecular weight, typically exceeding 1 million to 5 million. This fiber possesses excellent properties such as high strength, high modulus, low density (lighter than water), wear resistance, chemical corrosion resistance, and UV resistance. Its strength is approximately 15 times higher than that of steel wire of the same diameter, and its modulus is second only to carbon fiber. Due to its superior performance, UHMWPE fiber is widely used in military, aerospace, marine engineering, safety protection, and sporting goods industries.

[0003] In the military, it is used to make bulletproof vests and helmets; in marine engineering, it is used to make cables and fishing nets; and in sporting goods, it is used to make sailboats and skis. UD refers to a material structure where the fibers are arranged in a unidirectional direction. UD non-woven fabric is a fabric made from unidirectionally arranged fibers through a specific process. In ultra-high molecular weight polyethylene (UHMWPE) fiber-reinforced UD non-woven fabric, the UHMWPE fibers are arranged in parallel and impregnated and bonded with resin, forming a composite material with high strength and high directionality. UD non-woven fabric has an extremely high strength-to-weight ratio, enabling it to reduce overall weight while maintaining high strength. Its unidirectional fiber arrangement allows the fibers to fully utilize their mechanical properties in the direction of stress, resulting in excellent impact resistance and cut resistance.

[0004] Existing UHMWPE fiber-reinforced UD nonwoven fabric production equipment suffers from low production efficiency, unstable product quality, and uneven fiber arrangement. Moreover, intermittent production cannot meet the growing market demand, especially in the large-scale production of high-performance composite materials, where bottlenecks exist.

[0005] Therefore, an enhanced UD non-woven fabric device is proposed to address the above problems. Utility Model Content

[0006] The purpose of this invention is to overcome the existing defects and provide an enhanced UD nonwoven fabric equipment, which improves production efficiency, reduces production costs, and ensures the stability and consistency of product quality.

[0007] The technical solution to achieve the above objectives is: an enhanced UD nonwoven fabric device, comprising a release component, a fabric arrangement component, a fabric impregnation component, a molding and curing component, a post-processing component, and a collection component;

[0008] The right end of the release component is connected to the fabric arrangement component, the right end of the fabric arrangement component is connected to the fabric impregnation component, the right end of the fabric impregnation component is connected to the molding and curing component, and the right end of the molding and curing component is connected to the collection component.

[0009] Preferably, the release assembly includes a yarn frame, a guide roller, and a yarn divider; the output end of the yarn frame is connected to the guide roller, the output end of the guide roller is connected to the yarn divider, and the yarn divider is connected to the fabric arrangement assembly.

[0010] Preferably, the fabric arrangement assembly includes a yarn spreader and a front traction machine, the left end of the yarn spreader is connected to the yarn separating frame, the right end is connected to the front traction machine, and the right end of the front traction machine is connected to the fabric impregnation assembly.

[0011] Preferably, the fabric impregnation assembly includes a yarn spreader and an unwinder; the right end of the front traction machine is connected to the yarn spreader, the right end of the yarn spreader is connected to the unwinder, and the right end of the unwinder is connected to the molding and curing assembly.

[0012] Preferably, the molding and curing assembly includes a drying and shaping roller, a hot air dryer, a drying unit, and a rear traction machine; the left end of the drying and shaping roller is connected to the unwinding and spreading device, the right end of the hot air dryer is connected to the drying unit, the right end of the drying unit is connected to the rear traction machine, and the right end of the rear traction machine is connected to the post-processing assembly.

[0013] Preferably, the post-processing components include an edge trimming machine and a waste edge winding machine; the left end of the edge trimming machine is connected to the rear traction machine, and the right end is connected to the waste edge winding machine.

[0014] Preferably, the collecting component includes a winding machine connected to the trimming machine.

[0015] Preferably, the dryer is equipped with a circulating belt.

[0016] The beneficial effects of this invention are: This reinforced UD nonwoven fabric equipment can realize continuous operation of processes such as fiber spreading, arranging, impregnation, molding, and curing. This continuous production method improves production efficiency, reduces production costs, and can better ensure the stability and consistency of product quality. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the reinforced UD non-woven fabric equipment of this utility model.

[0018] In the diagram: 1. Yarn frame; 2. Guide roller; 3. Yarn separator; 4. Yarn spreader; 5. Front traction machine; 6. Yarn spreader and gluer; 7. Unwinder and film spreader; 8. Drying and setting roller; 9. Hot air dryer; 10. Dryer; 11. Circulating belt; 12. Rear traction machine; 13. Edge trimmer; 14. Waste edge rewinder; 15. Rewinder. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, an enhanced UD nonwoven fabric device includes a release component, a fabric arrangement component, a fabric impregnation component, a molding and curing component, a post-processing component, and a collection component; the right end of the release component is connected to the fabric arrangement component, the right end of the fabric arrangement component is connected to the fabric impregnation component, the right end of the fabric impregnation component is connected to the molding and curing component, and the right end of the molding and curing component is connected to the collection component.

[0022] Specifically, the release assembly includes a yarn frame 1, a guide roller 2, and a yarn separator 3; the output end of the yarn frame 1 is connected to the guide roller 2, the output end of the guide roller 2 is connected to the yarn separator 3, and the yarn separator 3 is connected to the fabric arrangement assembly.

[0023] Specifically, high-quality ultra-high molecular weight polyethylene fibers are selected. The properties of these fibers directly determine the key characteristics of the non-woven fabric, such as its strength. It is essential to ensure that the strength, modulus, and uniformity of the fibers meet production requirements.

[0024] Specifically, fibers are usually in bundles, which need to be loosened by the yarn separator 3. This step is to allow the fibers to enter the subsequent arrangement process more smoothly, prevent the fibers from tangling and knotting, and ensure that the fibers are evenly distributed.

[0025] Specifically, the fabric arrangement assembly includes a yarn spreader 4 and a front traction machine 5. The left end of the yarn spreader 4 is connected to the yarn splitter 3, and the right end is connected to the front traction machine 5. The right end of the front traction machine 5 is connected to the fabric impregnation assembly.

[0026] Specifically, the open fibers are combed using a yarn spreader 4, causing them to initially align in a certain direction. This process is similar to combing hair, where the yarn spreader 4 combs the fibers into a relatively neat state. A front traction machine 5 then uses this machine to ultimately achieve unidirectional fiber alignment. For example, a series of parallel rollers stretch and align the fibers in one direction, forming a unidirectional fiber layer, which is key to the unidirectional performance of the non-woven fabric.

[0027] Specifically, the fabric impregnation assembly includes a yarn spreader and glue applicator 6 and an unwinder and film spreader 7; the right end of the front traction machine 5 is connected to the yarn spreader and glue applicator 6, the right end of the yarn spreader and glue applicator 6 is connected to the unwinder and film spreader 7, and the right end of the unwinder and film spreader 7 is connected to the molding and curing assembly.

[0028] Specifically, choosing a suitable resin, such as epoxy resin or polyurethane resin, is crucial. The type and properties of the resin affect many aspects of the nonwoven fabric, including its toughness, hardness, and chemical resistance.

[0029] Specifically, the unidirectionally arranged fiber layer is passed through the impregnation tank of the fiber spreader 6, allowing the fibers to fully contact the resin. The resin level in the impregnation tank can be controlled to ensure uniform impregnation of the fibers. Additionally, auxiliary devices, such as impregnation rollers, can be installed to help the resin better penetrate between the fibers, ensuring that each fiber is coated with resin.

[0030] Specifically, the molding and curing assembly includes a drying and shaping roller 8, a hot air dryer 9, a drying unit 10, and a rear traction machine 12. The left end of the drying and shaping roller 8 is connected to the unwinding and spreading device 7, and the right end is connected to the hot air dryer 9. The right end of the hot air dryer 9 is connected to the drying unit 10, and the right end of the drying unit 10 is connected to the rear traction machine 12. A circulating belt 11 is installed inside the drying unit 10. The right end of the rear traction machine 12 is connected to the post-processing assembly.

[0031] Specifically, the impregnated fiber layer passes through one or more pairs of drying and shaping rollers 8. The pressure rollers can squeeze out excess resin and compact the fiber layer at the same time, initially forming the shape of the non-woven fabric. The pressure of the pressure rollers needs to be adjusted according to factors such as the amount of fiber and resin used to ensure the uniform thickness of the non-woven fabric.

[0032] Specifically, the pre-formed non-woven fabric is fed into the drying and setting rollers 8. On the drying and setting rollers, the resin undergoes a cross-linking reaction and solidifies into a stable three-dimensional network structure by precisely controlling the temperature and time. For example, epoxy resin will complete the curing process under certain temperature (e.g., 120-180℃) and time (e.g., 1-3 hours), thereby bringing the performance of the non-woven fabric to its optimal state. For thermoplastic resins, the resin is solidified to maintain the shape of the non-woven fabric.

[0033] Specifically, the post-processing components include an edge trimming machine 13 and a waste edge rewinding machine 14; the left end of the edge trimming machine 13 is connected to the rear traction machine 12, and the right end is connected to the waste edge rewinding machine 14. The edges of the cured nonwoven fabric may be uneven and require trimming. The edge trimming machine 13 removes the excess material to ensure the dimensions of the nonwoven fabric meet the requirements. The waste edge rewinding machine 14 rewinds the waste edges.

[0034] Specifically, the collection components include a winding machine 15, which is connected to an edge trimming machine 13. The machine checks whether the fiber distribution is uniform, whether the thickness of the non-woven fabric meets standards, and whether the resin curing is complete. Fiber distribution can be observed using an optical microscope, thickness measured with calipers, and product quality checked through physical property tests (such as tensile strength tests). The winding machine 15 then winds up the finished product.

[0035] Specifically, the yarn bundles are released through yarn frame 1, guide roller 2 and yarn splitter 3, and then pass through yarn spreader 4, front traction machine 5, yarn spreading and gluing machine (which spreads the yarn bundles and immerses them in the glue solution through two yarn spreading rollers) 6 and unwinding and spreading film machine 7. After passing through drying and shaping roller 8, hot air dryer 9, dryer 10, circulating belt 11, rear traction machine 12 and edge trimming machine 13, the composite sheet is formed into a non-woven fabric product. Finally, the non-woven fabric product is wound up by waste edge winding machine 14 and winding machine 15.

[0036] This reinforced UD nonwoven fabric equipment enables continuous operation of processes such as fiber spreading, arranging, impregnation, molding, and curing. This continuous production method improves production efficiency, reduces production costs, and better ensures the stability and consistency of product quality.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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 or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for reinforcing UD nonwoven fabric, characterized in that, It includes a release assembly, a fabric arrangement assembly, a fabric impregnation assembly, a molding and curing assembly, a post-processing assembly, and a collection assembly; The right end of the release component is connected to the fabric arrangement component, the right end of the fabric arrangement component is connected to the fabric impregnation component, the right end of the fabric impregnation component is connected to the molding and curing component, and the right end of the molding and curing component is connected to the collection component.

2. The reinforced UD nonwoven fabric equipment according to claim 1, characterized in that, The release assembly includes a yarn frame (1), a guide roller (2), and a yarn divider (3); the output end of the yarn frame (1) is connected to the guide roller (2), the output end of the guide roller (2) is connected to the yarn divider (3), and the yarn divider (3) is connected to the fabric arrangement assembly.

3. The reinforced UD nonwoven fabric equipment according to claim 2, characterized in that, The fabric arrangement assembly includes a yarn spreader (4) and a front traction machine (5). The left end of the yarn spreader (4) is connected to the yarn separating frame (3), and the right end is connected to the front traction machine (5). The right end of the front traction machine (5) is connected to the fabric impregnation assembly.

4. The reinforced UD nonwoven fabric equipment according to claim 3, characterized in that, The fabric impregnation assembly includes a yarn spreader and glue applicator (6) and an unwinding and film spreading device (7); the right end of the front traction machine (5) is connected to the yarn spreader and glue applicator (6), the right end of the yarn spreader and glue applicator (6) is connected to the unwinding and film spreading device (7), and the right end of the unwinding and film spreading device (7) is connected to the molding and curing assembly.

5. The reinforced UD nonwoven fabric equipment according to claim 4, characterized in that, The molding and curing assembly includes a drying and shaping roller (8), a hot air dryer (9), a dryer (10), and a rear traction machine (12); the left end of the drying and shaping roller (8) is connected to the unwinding and spreading device (7), and the right end is connected to the hot air dryer (9); the right end of the hot air dryer (9) is connected to the dryer (10); the right end of the dryer (10) is connected to the rear traction machine (12); and the right end of the rear traction machine (12) is connected to the post-processing assembly.

6. The reinforced UD nonwoven fabric equipment according to claim 5, characterized in that, The post-processing components include an edge trimmer (13) and a waste edge rewinder (14); the left end of the edge trimmer (13) is connected to the rear traction machine (12), and the right end is connected to the waste edge rewinder (14).

7. The reinforced UD nonwoven fabric equipment according to claim 6, characterized in that, The collecting assembly includes a winding machine (15) connected to the trimming machine (13).

8. The reinforced UD nonwoven fabric equipment according to claim 5, characterized in that, The dryer (10) is equipped with a circulating belt (11).

Images