Sunlight-resistant anti-aging PVC (polyvinyl chloride) netted sandwich cloth and preparation method thereof

Abstract

The invention discloses a solarization-resistant anti-aging PVC (polyvinyl chloride) netted sandwich cloth and a preparation method thereof, and relates to the technical field of PVC netted sandwich cloth and a preparation method thereof.The solarization-resistant anti-aging PVC netted sandwich cloth comprises a main plate, and supporting frames are fixedly connected to two sides of the top of the main plate; a moving frame is mounted in the moving cavity; a lifting cylinder is mounted at the bottom of a connecting rod piece of the lifting mechanism; a fixing shaft is fixedly connected to the interior of the clamping cavity; a clamping claw is rotationally mounted outside the section of the fixed shaft; a pressing plate is arranged at the top of the rotating roller in the clamping cavity; a clamping groove is formed in the side face of the fixing block in a penetrating mode. A telescopic rod is mounted at the bottom of the moving mechanism; the bottom of the telescopic rod is fixedly connected with a scraping plate; by means of the cooperation of the clamping mechanism and the scraper structure, folded cloth is scraped to be flat, a shearing notch is avoided, the quality and integrity of the whole fabric are guaranteed, the position of the cloth does not need to be adjusted by stopping the whole cutting device, and adjustment and cutting of the cloth at the designated position are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of PVC mesh cloth, and in particular to sunlight-resistant and aging-resistant PVC mesh cloth and a preparation method thereof. Background Art

[0002] PVC mesh cloth usually refers to a material, which is composed of PVC and mesh cloth. This kind of cloth has the characteristics of waterproof, wear-resistant and durable, and is often used in outdoor products, decorative materials, industrial products and other fields;

[0003] For example, the announcement number is: CN 114905826 A. The present invention discloses a mesh cloth, especially a metallized PET and PVC composite high-barrier mesh cloth and a preparation method thereof, which comprises a PVC film, a polyester fiber mesh cloth and a PET aluminized film, wherein the top surface and the bottom surface of the polyester fiber mesh cloth are respectively thermally bonded with a PVC film and a PET aluminized film, and the mesh cloth with good barrier properties is formed by thermally bonding a PVC film to the surface layer of the polyester fiber mesh cloth and a layer of PET aluminized film to the bottom surface, and has the advantages of bright metallic gloss, excellent gas and light barrier properties, and good moisture-proof, heat-resistant and puncture-resistant properties, and can be used for moisture-proofing in ammunition depots, hangar tents, and industrial and civilian materials requiring high barrier properties;

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it is found that the existing fabrics will age rapidly during use, which shortens the service life of the sunscreen products. Moreover, for some fabrics with fitting defects, their service life will be further greatly reduced. Therefore, a cutting device is needed for auxiliary cutting. During the cutting process of the formed fabric, it is necessary to stop the cutting operation of the entire device according to the cutting requirements and adjust the position of the fabric, resulting in low efficiency of the entire cutting operation. In addition, the fabric is prone to stacking and folding when laid, which makes the cutting marks not neat, affecting the subsequent technical problems of the PVC mesh fabric sewing process. Summary of the invention

[0005] The purpose of the present invention is to provide a sun-resistant and anti-aging PVC mesh cloth to solve the problem that the existing cloth will age quickly during use, which shortens the service life of the sunscreen product. Moreover, for some cloths with fitting defects, their service life will be further greatly reduced. Therefore, a cutting device is needed for auxiliary cutting. During the cutting process of the formed cloth, it is necessary to stop the cutting operation of the entire device according to the cutting requirements and adjust the position of the cloth, resulting in low efficiency of the entire cutting operation. In addition, the cloth is prone to stacking and folding when laid, which makes the cutting marks not neat, affecting the subsequent technical problem of sewing process of the PVC mesh cloth.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The sun-resistant and anti-aging PVC mesh cloth comprises, from bottom to top, polyester fabric, a first surface layer PVC film, mesh cloth, a second surface layer PVC film, polyester fiber fabric, a third surface layer PVC film, and an anti-ultraviolet layer; the first surface layer PVC film and the second surface layer PVC film are thermally bonded to the upper and lower layers of the mesh cloth respectively; a sunscreen additive is added to the polyester fiber fabric;

[0008] The preparation method of the sunlight-resistant and anti-aging PVC mesh cloth comprises the following steps:

[0009] S1: Laying the polyester fabric on the operating table, laying the first surface layer PVC film and the mesh cloth on the polyester fabric in turn, and performing heat bonding in a high-temperature heat bonding machine to obtain a semi-finished fabric;

[0010] S2: Laying the second surface layer PVC film on the semi-finished fabric obtained in S1, and performing heat bonding in a high-temperature heat bonding machine to form a semi-finished PVC mesh fabric;

[0011] S3: Laying the polyester fiber fabric, the third surface layer PVC film and the anti-ultraviolet layer on the semi-finished PVC mesh fabric obtained in S2 in sequence, and performing heat bonding in a high-temperature heat bonding machine to form a sun-resistant PVC mesh fabric;

[0012] S4: sending the sun-resistant PVC mesh fabric obtained in S3 to an auxiliary cutting device for cutting.

[0013] The mass fractions of the first surface layer PVC film 102 in S1 include: 110 parts of polyvinyl chloride resin powder with a polymerization degree of 1100-1200, 55-75 parts of dioctyl terephthalate environmentally friendly plasticizer, 3 parts of epoxy soybean oil, 3 parts of calcium zinc composite stabilizer, 1-2 parts of benzophenone ultraviolet absorber, 1-2 parts of 1010 antioxidant and 1 part of 10,10'-oxybisphenoxane arsenic mildew preventer. The polyester fiber fabric 105 in step S3 is added with ferrite material powder to give the fabric good wave absorbing performance; the anti-ultraviolet layer and the mesh cloth are combined to improve the sun resistance effect.

[0014] The auxiliary cutting device comprises a main board, both sides of the top of the main board are fixedly connected to support frames; a cutting mechanism is installed on the body of the support frame; a moving cavity is provided on the opposite surfaces of the crossbar of the support frame; a moving frame is installed inside the moving cavity; a lifting mechanism is installed on both ends of the top of the moving frame; a lifting cylinder is installed at the bottom of the connecting rod of the lifting mechanism; a clamping cavity is provided at the bottom of the lifting cylinder; a fixed shaft is fixedly connected to the inside of the clamping cavity; a clamping claw is rotatably installed on the outside of the cross section of the fixed shaft; a rotating roller is installed on the top of the clamping claw;

[0015] A spring is installed on the clamping claw; the end of the spring is connected to the inner wall surface of the clamping cavity; a pressure plate is arranged on the top of the rotating roller inside the clamping cavity; the movement track width of the rotating roller is smaller than the width of the clamping cavity; a structural cavity is opened at one end of the top of the main board; a fixing block is installed on the bottom end surface of the inner wall of the structural cavity; a clamping groove is opened through the side of the fixing block; the operating track of the clamping claw intersects with the opening space of the clamping groove; a pushing mechanism is installed on the support frame; the connecting rod of the pushing mechanism is connected to the moving frame; the cloth is spread flat on the top of the main board.

[0016] A pressing roller is installed on the vertical end surface of the main board close to the structural cavity to prevent the cloth from floating when it is laid.

[0017] A fixing frame is installed at one end of the main board away from the top of the pressure roller; a rotating device is installed on the moving frame; a fixing needle is fixedly connected to the rotating rod of the rotating device; thus, the cloth is fixed.

[0018] A connecting frame is fixedly connected to the top of the supporting frame; a moving groove is penetrated through the horizontal plate of the connecting frame; a moving mechanism is installed in the moving groove; a telescopic rod is installed at the bottom of the moving mechanism; a scraper is fixedly connected to the bottom of the telescopic rod; a power device is installed on the connecting frame; the power device acts on the moving mechanism to prevent the cloth from folding during the laying and cutting process.

[0019] Beneficial effects of the present invention:

[0020] When the fabric is made into a sunscreen product, the ultraviolet rays in the sunlight first come into contact with the anti-ultraviolet layer, and the ultraviolet rays are absorbed by the anti-ultraviolet layer, which increases the scattering and direct radiation effect of the sunscreen product on ultraviolet rays and sunlight, and reduces the degree of ultraviolet rays damaging human skin through the sunscreen product. The ferrite material powder contained in the fabric can give the PVC mesh fabric good wave absorption performance, further reducing the ultraviolet rays that penetrate the fabric, improving the anti-aging ability of the fabric, and achieving a good protective effect.

[0021] Through the auxiliary cutting device, the folded cloth is flattened to avoid shear gaps, thereby ensuring the quality and integrity of the entire fabric. The cutting mechanism is started to cut the edges of the cloth without stopping the entire cutting device to adjust the position of the cloth, which facilitates the adjustment and cutting of the cloth at the designated position and avoids the quality of the sunscreen product affected by the unfitted position of the edges of the cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the PVC mesh cloth of the present invention;

[0024] Figure 2 is a schematic structural diagram of the auxiliary cutting device of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure inside the structural cavity of the present invention;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the cutting mechanism of the present invention;

[0027] Figure 5 is a structural diagram of the lifting and clamping device of the present invention;

[0028] Figure 6 It is a schematic diagram of the cross-sectional structure of the lifting cylinder of the present invention;

[0029] Figure 7 It is a three-dimensional structural diagram of the scraping device structure in the present invention;

[0030] Figure 8 is a system flow chart of the present invention;

[0031] In the figure: 101, polyester fabric; 102, first surface layer PVC film; 103, mesh cloth; 104, second surface layer PVC film; 105, polyester fabric; 106, third surface layer PVC film; 107, anti-ultraviolet layer; 1, main board; 2, support frame; 3, cutting mechanism; 401, moving cavity; 402, moving frame; 403, lifting mechanism; 404, lifting cylinder; 405, clamping cavity; 406, fixed Fixed axis; 407, clamping claw; 408, spring; 409, rotating roller; 410, pressure plate; 411, structural cavity; 412, fixed block; 413, clamping groove; 414, pressure roller; 415, pushing mechanism; 416, fixed frame; 417, rotating device; 418, fixed needle; 501, connecting frame; 502, moving groove; 503, moving mechanism; 504, telescopic rod; 505, scraper; 506, power device. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1As shown, the sun-resistant and anti-aging PVC mesh cloth comprises, from bottom to top, polyester fabric 101, first surface layer PVC film 102, mesh cloth 103, second surface layer PVC film 104, polyester fiber fabric 105, third surface layer PVC film 106, and anti-ultraviolet layer 107; the first surface layer PVC film 102 and the second surface layer PVC film 104 are thermally bonded to the upper and lower layers of the mesh cloth 103 respectively; sunscreen additives are added to the polyester fiber fabric 105;

[0034] See also Figure 8 As shown, the preparation method of the sunlight-resistant and anti-aging PVC mesh cloth comprises the following steps:

[0035] S1: Lay the polyester fabric 101 on the operating table, lay the first surface layer PVC film 102 and the mesh cloth 103 on the polyester fabric 101 in turn, and perform heat bonding in a high-temperature heat bonding machine to obtain a semi-finished fabric;

[0036] S2: Laying the second surface layer PVC film 104 on the semi-finished cloth obtained in S1, and performing heat bonding in a high-temperature heat bonding machine to form a semi-finished PVC mesh cloth;

[0037] S3: Laying the polyester fiber fabric 105, the third surface layer PVC film 106 and the anti-ultraviolet layer 107 on the semi-finished PVC mesh fabric obtained in S2 in sequence, and performing heat bonding in a high-temperature heat bonding machine to form a sun-resistant PVC mesh fabric;

[0038] S4: sending the sun-resistant PVC mesh fabric obtained in S3 to an auxiliary cutting device for cutting.

[0039] The mass fractions of the first surface layer PVC film 102 in S1 include: 110 parts of polyvinyl chloride resin powder with a polymerization degree of 1100-1200, 55-75 parts of dioctyl terephthalate environmentally friendly plasticizer, 3 parts of epoxy soybean oil, 3 parts of calcium zinc composite stabilizer, 1-2 parts of benzophenone ultraviolet absorber, 1-2 parts of 1010 antioxidant and 1 part of 10,10'-oxybisphenoxane arsenic mildew preventer; the polyester fiber fabric 105 in step S3 is added with ferrite material powder to give the fabric good wave absorbing performance;

[0040] When working, PVC mesh cloth usually refers to a material, which is composed of PVC and mesh cloth. This kind of cloth has the characteristics of waterproof, wear-resistant and durable, and is often used in outdoor products, decorative materials, industrial products and other fields; the existing cloth will age quickly during use, which makes the service life of the sunscreen product shorter, and for some cloths with bonding defects, its service life will be further greatly reduced; by sequentially bonding the third surface layer PVC film 106 and the anti-ultraviolet layer 107 on the surface of the polyester fiber fabric 105, when the cloth is used for sun protection, the anti-ultraviolet layer 107 can effectively reduce the penetration of ultraviolet rays, extend the service life of the material, and protect the human body from the harm of ultraviolet rays, and can effectively protect against long-term sun exposure, thereby improving the sun protection effect of the sunscreen cloth.

[0041] See also Figure 2-7 As shown, the auxiliary cutting device used in the preparation method of the sun-resistant and anti-aging PVC mesh cloth comprises a main board 1, and the top two sides of the main board 1 are fixedly connected to a support frame 2; a cutting mechanism 3 is installed on the frame body of the support frame 2; a moving cavity 401 is provided on the opposite surfaces of the cross bar of the support frame 2; a moving frame 402 is installed inside the moving cavity 401; a lifting mechanism 403 is installed on both ends of the top of the moving frame 402; a lifting cylinder 404 is installed at the bottom of the connecting rod of the lifting mechanism 403; a clamping cavity 405 is provided at the bottom of the lifting cylinder 404; a fixed shaft 406 is fixed inside the clamping cavity 405; a clamping claw 407 is rotatably installed on the outside of the cross section of the fixed shaft 406; a rotating roller 409 is installed on the top of the clamping claw 407;

[0042] A spring 408 is installed on the clamping claw 407; the end of the spring 408 is connected to the inner wall surface of the clamping cavity 405; a pressure plate 410 is arranged on the top of the rotating roller 409 inside the clamping cavity 405; the movement track width of the rotating roller 409 is smaller than the width of the clamping cavity 405; a structural cavity 411 is opened at one end of the top of the main board 1; a fixing block 412 is installed on the bottom end surface of the inner wall of the structural cavity 411; a clamping groove 413 is opened through the side of the fixing block 412; The operation track of the claw 407 intersects with the opening space of the clamping groove 413; a pushing mechanism 415 is installed on the support frame 2; the connecting rod of the pushing mechanism 415 is connected to the moving frame 402; a pressing roller 414 is installed on the vertical end surface of the main board 1 close to the structural cavity 411; a fixing frame 416 is installed on the top end of the main board 1 away from the pressing roller 414; a rotating device 417 is installed on the moving frame 402; a fixing pin 418 is fixedly connected to the rotating rod of the rotating device 417;

[0043] During operation, the bonded fabric needs to be cut by cutting equipment. During the cutting process of the formed fabric, the cutting operation of the entire device needs to be stopped according to the cutting requirements, and the position of the fabric needs to be adjusted, resulting in low efficiency of the entire cutting operation. In addition, the fabric is prone to stacking and folding when being laid, which makes the cutting marks not neat, affecting the subsequent technical problems of the PVC mesh fabric sewing process. After the fabric passes through the pressing roller 414 and enters the operating range of the structural cavity 411, the lifting mechanism 403 on the mobile frame 402 operates, and the lifting cylinder 404 moves downward, so that the sun-resistant PVC mesh fabric in S3 is pressed into the structural cavity 411, and the fabric is laid on the outside of the fixed block 412. After the lifting cylinder 404 contacts the fixed block 412, the lifting mechanism 403 pushes the pressure plate 410 inside the clamping cavity 405 to continue to move downward. Under the cooperation of the fixed shaft 406 and the rotating roller 409, the bottoms of the clamping claws 407 move away from each other, and the spring 408 is compressed and formed. The reaction force causes the clamping claws 407 to form a clamping tendency. At this time, the bottoms of the clamping claws 407 are located on both sides of the clamping groove 413. Subsequently, the lifting mechanism 403 structure drives the pressure plate 410 to rise. Under the cooperation of the reaction force of the spring 408, the bottoms of the clamping claws 407 approach each other and pass through the clamping groove 413 to clamp the cloth. As the pressure plate 410 continues to rise, the lifting cylinder 404 rises accordingly to clamp and fix the moving end of the cloth. Then, the pushing mechanism 415 operates. The movable frame 402 drives the clamped cloth to move along the movable cavity 401. After the cloth moves to the operating range of the fixed frame 416, the lifting mechanism 403 pushes the lifting cylinder 404 to move downward, so that the cloth passes through the fixed needle 418 and is pressed on the rotating device 417, and the cutting mechanism 3 is started to cut the edge of the cloth. There is no need to stop the entire cutting device to adjust the position of the cloth, which facilitates the adjustment and cutting of the cloth at the specified position and avoids the side of the cloth not being in place, affecting the quality of the sunscreen product.

[0044] See also Figure 7 As shown, a connecting frame 501 is fixedly connected to the top of the support frame 2; a moving groove 502 is formed through the horizontal plate of the connecting frame 501; a moving mechanism 503 is installed in the moving groove 502; a telescopic rod 504 is installed at the bottom of the moving mechanism 503; a scraper 505 is fixedly connected to the bottom of the telescopic rod 504; a power device 506 is installed on the connecting frame 501; and the power device 506 acts on the moving mechanism 503;

[0045] During operation, before cutting the sun-protective fabric, the telescopic rod 504 at the bottom of the moving mechanism 503 is started, the scraper 505 descends to the top of the fabric, the power device 506 on the connecting frame 501 operates, and the moving mechanism 503 drives the scraper 505 to move along the moving groove 502, so that the folded fabric is scraped flat, shear notches are avoided, and the quality and integrity of the entire fabric are guaranteed.

[0046] Working principle: PVC mesh cloth generally refers to a material, which is composed of PVC and mesh cloth. This kind of cloth has the characteristics of being waterproof, wear-resistant and durable, and is often used in the fields of outdoor products, decorative materials, industrial products, etc.; the existing cloth will age quickly during use, which shortens the service life of the sunscreen product, and for some cloths with lamination defects, their service life will be further greatly reduced; by laminating the third surface layer PVC film 106 and the anti-ultraviolet layer 107 on the surface of the polyester fiber fabric 105 in sequence, when the cloth is used for sunscreen, the anti-ultraviolet layer 107 can effectively reduce the penetration of ultraviolet rays, extend the service life of the material, and protect the human body from the harm of ultraviolet rays, and can effectively protect against long-term sun exposure, thereby improving the sunscreen effect of the sunscreen cloth;

[0047] The bonded fabric needs to be cut by cutting equipment. In the process of cutting the formed fabric, the cutting operation of the entire device needs to be stopped according to the cutting requirements, and the position of the fabric needs to be adjusted, resulting in low efficiency of the entire cutting operation. In addition, the fabric is prone to accumulation and folding when laid, which makes the cutting marks not neat, affecting the subsequent PVC mesh fabric sewing process. After the fabric passes through the pressing roller 414 and enters the operating range of the structural cavity 411, the lifting mechanism 403 on the mobile frame 402 operates, and the lifting cylinder 404 moves downward, so that the fabric in S3 The sun-resistant PVC mesh fabric is pressed into the structural cavity 411, and the fabric is laid on the outside of the fixed block 412. After the lifting cylinder 404 contacts the fixed block 412, the lifting mechanism 403 pushes the pressure plate 410 inside the clamping cavity 405 to continue to move downward. Under the cooperation of the fixed shaft 406 and the rotating roller 409, the bottoms of the clamping claws 407 move away from each other, and the springs 408 are compressed and form a reaction force, so that the clamping claws 407 form a clamping trend. At this time, the bottoms of the clamping claws 407 are located on both sides of the clamping groove 413. Subsequently, the lifting mechanism 403 structural parts drive The pressing plate 410 rises, and under the cooperation of the reaction force of the spring 408, the bottoms of the clamping claws 407 approach each other and pass through the clamping groove 413 to clamp the cloth. As the pressing plate 410 continues to rise, the lifting cylinder 404 rises accordingly to clamp and fix the moving end of the cloth. Then, the pushing mechanism 415 operates, and the mobile frame 402 drives the clamped cloth to move along the moving cavity 401. After the cloth moves to the operating range of the fixed frame 416, the lifting mechanism 403 pushes the lifting cylinder 404 to move downward, so that the cloth passes through the fixed needle 418 and is pressed on the rotating device 417 , start the telescopic rod 504 at the bottom of the moving mechanism 503, the scraper 505 descends to the top of the cloth, the power equipment 506 on the connecting frame 501 starts to work, and the moving mechanism 503 drives the scraper 505 to move along the moving groove 502, so that the folded cloth is scraped flat to avoid shear notches, thereby ensuring the quality and integrity of the entire fabric, and starting the cutting mechanism 3 to cut the edge of the cloth. There is no need to stop the entire cutting device to adjust the position of the cloth, which is convenient for adjusting and cutting the cloth at the specified position, and avoids the side of the cloth not being in the right position to affect the quality of the sunscreen product.

[0048] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. Sun-resistant and anti-aging PVC mesh cloth, characterized by: The sun-resistant and anti-aging PVC mesh cloth comprises, from bottom to top, polyester fabric (101), a first surface layer PVC film (102), mesh cloth (103), a second surface layer PVC film (104), polyester fabric (105), a third surface layer PVC film (106), and an anti-ultraviolet layer (107).

2. The sun-resistant and anti-aging PVC mesh cloth according to claim 1, characterized in that: The upper and lower layers of the mesh cloth (103) are respectively thermally bonded with a first surface layer PVC adhesive film (102) and a second surface layer PVC adhesive film (104).

3. The sun-resistant and anti-aging PVC mesh cloth according to claim 2 is characterized in that: A sunscreen aid is added to the polyester fiber fabric (105).

4. A method for preparing sunlight-resistant and anti-aging PVC mesh cloth, characterized in that: The preparation steps are: S1: Laying a polyester fabric (101) on an operating table, laying a first surface layer PVC film (102) and a mesh cloth (103) on the polyester fabric (101) in sequence, and performing heat bonding in a high-temperature heat bonding machine to obtain a semi-finished fabric; S2: Laying the second surface layer PVC film (104) on the semi-finished cloth obtained in S1, and performing heat bonding in a high-temperature heat bonding machine to form a semi-finished PVC mesh cloth; S3: laying the polyester fiber fabric (105), the third surface layer PVC film (106) and the anti-ultraviolet layer (107) on the semi-finished PVC mesh fabric obtained in S2 in sequence, and performing heat bonding in a high-temperature heat bonding machine to form a sun-resistant PVC mesh fabric; S4: sending the sun-resistant PVC mesh fabric obtained in S3 to an auxiliary cutting device for cutting.

5. The method for preparing the sunlight-resistant and aging-resistant PVC mesh cloth according to claim 4, characterized in that: The mass fractions of the first surface layer PVC film (102) in S1 include: 110 parts of polyvinyl chloride resin powder with a polymerization degree of 1100-1200, 55-75 parts of dioctyl terephthalate environmentally friendly plasticizer, 3 parts of epoxy soybean oil, 3 parts of calcium zinc composite stabilizer, 1-2 parts of benzophenone ultraviolet absorber, 1-2 parts of 1010 antioxidant and 1 part of 10,10'-oxybisphenoxane mildew inhibitor.

6. The method for preparing the sunlight-resistant and aging-resistant PVC mesh cloth according to claim 5, characterized in that: In step S3, ferrite material powder is added to the polyester fiber fabric (105) to give the fabric good wave absorbing performance.

7. The auxiliary cutting device used in the method for preparing the sunlight-resistant and aging-resistant PVC mesh cloth according to claim 5, characterized in that: The invention comprises a main board (1); support frames (2) are fixedly connected to both sides of the top of the main board (1); a cutting mechanism (3) is installed on the body of the support frame (2); movable cavities (401) are provided on the opposite surfaces of the cross bars of the support frame (2); a movable frame (402) is installed inside the movable cavity (401); a lifting mechanism (403) is installed at both ends of the top of the movable frame (402); a lifting cylinder (404) is installed at the bottom of the connecting rod of the lifting mechanism (403); a clamping cavity (405) is provided at the bottom of the lifting cylinder (404); a fixed shaft (406) is fixedly connected to the inside of the clamping cavity (405); a clamping claw (407) is rotatably installed on the outside of the cross section of the fixed shaft (406); a rotating roller (409) is installed on the top of the clamping claw (407); A spring (408) is installed on the clamping claw (407); the end of the spring (408) is connected to the inner wall surface of the clamping cavity (405); a pressure plate (410) is arranged on the top of the rotating roller (409) inside the clamping cavity (405); the width of the movement track of the rotating roller (409) is smaller than the width of the clamping cavity (405); a structural cavity (411) is opened at one end of the top of the main board (1); a fixing block (412) is installed on the bottom end surface of the inner wall of the structural cavity (411); a clamping groove (413) is opened through the side of the fixing block (412); the operation track of the clamping claw (407) intersects with the opening space of the clamping groove (413); a pushing mechanism (415) is installed on the support frame (2); and the connecting rod of the pushing mechanism (415) is connected to the moving frame (402).

8. The auxiliary cutting device used in the method for preparing the sunlight-resistant and aging-resistant PVC mesh cloth according to claim 7 is characterized in that: A pressing roller (414) is installed on the vertical end surface of the main board (1) close to the structural cavity (411).

9. The auxiliary cutting device used in the method for preparing the sunlight-resistant and aging-resistant PVC mesh cloth according to claim 7, characterized in that: A fixed frame (416) is installed at one end of the main board (1) away from the pressure roller (414); a rotating device (417) is installed on the movable frame (402); and a fixed pin (418) is fixedly connected to the rotating rod of the rotating device (417).

10. The auxiliary cutting device used in the method for preparing the sunlight-resistant and aging-resistant PVC mesh cloth according to claim 7, characterized in that: The top of the support frame (2) is fixedly connected to a connecting frame (501); a moving groove (502) is formed through a horizontal plate of the connecting frame (501); a moving mechanism (503) is installed in the moving groove (502); a telescopic rod (504) is installed at the bottom of the moving mechanism (503); a scraper (505) is fixedly connected to the bottom of the telescopic rod (504); a power device (506) is installed on the connecting frame (501); and the power device (506) acts on the moving mechanism (503).

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