Weaving method of screen cloth for solar photovoltaic screen printing plate

Abstract

The invention discloses a weaving method of screen cloth for a solar photovoltaic screen printing plate, which adopts various warp and weft combinations to weave the screen cloth, and meets the requirements of various performances and service life. According to the method, warp and weft different materials, different yarn diameters and different meshes are adopted for mixed weaving, according to customer requirements and market requirements, different weft yarn diameters and different warp and weft mesh numbers are set for weaving, and the specific steps are as follows: S1, mesh wires used for weaving are wound on a raw material shaft according to reed parameter indexes, and the length of each group needs to be consistent; s2, net wires used for weaving a net penetrate through a palm sheet and a reed, the palm sheet is divided into a front sheet and a rear sheet, and it is ensured that one of every two adjacent wires penetrates through the front sheet, and the other one penetrates through the rear sheet; s3, the warp yarn penetrating through the palm sheet and the reed is evenly adhered to an adhesive tape, certain tension is given, and net weaving equipment is started; s4, the rapier belt reciprocates to drive the weft to be woven, the front and rear palm sheets change angles once every time the rapier belt reciprocates, and it is ensured that the warp and the weft are woven alternately up and down.

Description

Technical Field

[0001] The invention relates to the technical field of solar photovoltaics, and in particular to a method for weaving a mesh cloth for a solar photovoltaic screen. Background Art

[0002] In the prior art, the mesh cloth used for making solar photovoltaic fine grid screens is made of stainless steel or tungsten wire. The stainless steel mesh wire is cheap, but has poor tensile strength, and the service life of the made screen is short; the tungsten wire is expensive, but has high tensile strength, and the service life of the made screen is long; both stainless steel wire and tungsten wire have their own advantages and disadvantages; the mesh cloth woven with stainless steel wire is 20%-30% cheaper than that of tungsten wire, but the service life is 40-50% lower than that of tungsten wire mesh, so the mesh cloth used for existing solar photovoltaic screens cannot take into account both the weaving cost and the service life of the client.

[0003] In addition, the mesh used for making solar photovoltaic fine grid screens in the prior art all has the same number of warp and weft, and 430 mesh, 480 mesh, 500 mesh, and 520 mesh are the mainstream, and the number of warp and weft is fixed. With the existing weaving process with fixed warp and weft, the solar photovoltaic screens made can only take into account either the on-site printability or the printing life, or even both of them cannot be well ensured, either the printability is poor, or the service life does not meet the requirements, and even the printability and service life cannot meet the customer needs;

[0004] In addition, the mesh used in the prior art for making solar photovoltaic fine grid screens now has the same diameter of warp and weft, and the warp and weft diameter is 6-13 microns as the mainstream. With the existing weaving process with fixed diameter of warp and weft, under the same mesh number, the mesh made of high-warp mesh wire has poor ink permeability due to its thick diameter and small opening, but because of its thicker diameter and higher strength, the service life of the solar photovoltaic screen made of mesh with fine diameter is longer than that of the mesh made of mesh with fine diameter; by the same principle, under the same mesh number, the mesh made of low-warp mesh wire has good ink permeability due to its thin diameter and large opening, but because of its thinner diameter and lower strength, the service life of the solar photovoltaic screen made of mesh with high diameter is shorter than that of the mesh made of mesh with high diameter;

[0005] Therefore, the mesh fabric made by traditional methods has poor flexibility, which greatly limits its use by downstream customers. Summary of the invention

[0006] In view of the above problems, the present invention provides a method for weaving mesh cloth for solar photovoltaic screens, which adopts a combination of multiple warp and weft lines to weave the mesh cloth, so that downstream customers can more flexibly meet various performance and service life requirements according to customer needs.

[0007] A method for weaving a mesh cloth for a solar photovoltaic screen is characterized in that the warp and weft are mixed and woven with different materials, different wire diameters, and different meshes, and different weft wire diameters and warp and weft meshes are set according to customer needs and market needs. The specific steps are as follows:

[0008] S1. Wrap the mesh wire used for weaving around the raw material shaft according to the reed parameter index, and the length of each group needs to be consistent;

[0009] S2, pass the mesh wire used for weaving the net through the palm sheet and the reed. The palm sheet is divided into front and back sheets, and ensure that one of the two adjacent wires passes through the front sheet and the other passes through the back sheet;

[0010] S3, evenly stick the warp threads passing through the palm sheet and the reed on the tape, give a certain tension, and start the net weaving equipment;

[0011] S4. The reciprocating motion of the sword belt drives the weft to be woven. Each time the sword belt reciprocates, the front and rear palm sheets change angles once to ensure that the warp and weft are woven alternately up and down.

[0012] It is further characterized by:

[0013] The mesh wire is made of ordinary stainless steel wire, stainless steel reinforced wire, ordinary tungsten wire or high-strength tungsten wire. The mesh wire in step S1 is made of at least two materials;

[0014] The wire diameter of the mesh is 6 microns to 13 microns;

[0015] The mesh wires of different wire diameters include warp wires and weft wires having different wire diameters;

[0016] Mesh wires with different wire diameters also include different wire diameters of warp wires or different wire diameters of weft wires in the same mesh;

[0017] The warp mesh count is 430-640 mesh, and the weft mesh count is 430-680 mesh. The warp mesh count and weft mesh count are different, making it a double-mesh mesh.

[0018] After adopting the above technical scheme, it overcomes the disadvantage of poor flexibility of mesh woven by traditional methods and solves the dilemma of the photovoltaic screen industry that various performances and service life cannot be taken into account at the same time; the solar photovoltaic screen made of multi-material mesh has been verified by the client, with good printing performance and an average service life of more than 500,000 times, which is 40-50% higher than the average service life of the screen with stainless steel wire for the warp and weft, and about 20%-30% lower than the average weaving cost of the screen with tungsten wire for the warp and weft; the solar photovoltaic screen made of binocular mesh has been verified by the client, with good printing performance, a 20% reduction in the proportion of broken grids, and an average service life of more than 400,000 times, which is 30% higher than the average service life of the screen with the same mesh number of warp and weft; the solar photovoltaic screen made of multi-wire diameter mesh has been verified by the client, with good printing performance, a 15-20% reduction in the proportion of broken grids, and an average service life of more than 20-25%. The use of multi-wire diameter combination weaving method also appropriately increases the company's weaving profit by about 10%-15%. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a specific embodiment 1 produced by the method of the present invention;

[0020] Figure 2 A structural diagram of a specific embodiment 2 produced by the method of the present invention;

[0021] Figure 3 This is a schematic structural diagram of specific embodiment 3 produced by the method of the present invention. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] A method for weaving a mesh cloth for a solar photovoltaic screen, which uses warp and weft threads of different materials, different wire diameters, and different meshes for mixed weaving, and sets different weft wire diameters and warp and weft meshes for weaving according to customer needs and market demands. The specific steps are as follows:

[0025] S1. Wrap the mesh wire used for weaving around the raw material shaft according to the reed parameter index, and the length of each group needs to be consistent;

[0026] S2, pass the mesh wire used for weaving the net through the palm sheet and the reed. The palm sheet is divided into front and back sheets, and ensure that one of the two adjacent wires passes through the front sheet and the other passes through the back sheet;

[0027] S3, evenly stick the warp threads passing through the palm sheet and the reed on the tape, give a certain tension, and start the net weaving equipment;

[0028] S4. The reciprocating motion of the sword belt drives the weft to be woven. Each time the sword belt reciprocates, the front and rear palm sheets change angles once to ensure that the warp and weft are woven alternately up and down.

[0029] Specific embodiment 1, see Figure 1 The warp is 500 mesh and the weft is 430 mesh. The warp mesh wire is stainless steel wire with a wire diameter of 13 microns, and the weft mesh wire is tungsten wire with a wire diameter of 11 microns.

[0030] Specific embodiment 2, see Figure 2 The warp is 500 mesh and the weft is 610 mesh. The warp mesh wire is tungsten wire with a diameter of 11 microns, and the weft mesh wire is stainless steel wire with a diameter of 9 microns.

[0031] Specific embodiment three, see Figure 3 The warp is 500 mesh and the weft is 680 mesh. The warp mesh wire is a stainless steel wire with a diameter of 6 microns, and the weft mesh wire is a high-strength tungsten wire with a diameter of 9 microns.

[0032] Multi-material meshes with non-uniform wire diameters are used to weave a binocular mesh, and the fine grid pattern of the photovoltaic printing screen is parallel to the wire wire of the mesh, ensuring that the printed fine grid pattern just falls into the opening of the mesh. Tungsten wire is used for the weft near the ink-permeable area, which not only saves weaving costs, but also ensures good printing ink permeability while ensuring sufficient steel wire strength, thereby ensuring the service life of the photovoltaic screen; different wire diameters for the warp and weft ensure good printing ink permeability while ensuring sufficient mesh wire strength to support the pattern, thereby ensuring the service life of the photovoltaic screen.

[0033] It overcomes the disadvantage of poor flexibility of mesh woven by traditional methods and solves the dilemma of the photovoltaic screen industry that various performances and service life cannot be taken into account at the same time; the solar photovoltaic screen made of multi-material mesh has been verified by the client, with good printability and an average service life of more than 500,000 times, which is 40-50% higher than the average service life of the screen with stainless steel wire for the warp and weft, and about 20%-30% lower than the average weaving cost of the screen with tungsten wire for the warp and weft; it changes the disadvantage of fixed warp and weft mesh counts and adopts a variety of combinations to weave binocular mesh cloth, so that downstream customers can be more flexible according to customer needs and take into account the needs of printability and service life. At the same time, some binocular mesh combinations can also appropriately improve the company's weaving efficiency by about 15%-20%; the solar photovoltaic screen made of multi-wire diameter mesh has been verified by the client, with good printability and a 15-20% reduction in the proportion of broken grids. At the same time, the average service life is increased to more than 20-25%. The use of multi-wire diameter combination weaving method also appropriately increases the company's weaving profit by about 10%-15%.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for preparing a mesh cloth for a solar photovoltaic screen, characterized in that: It uses warp and weft threads of different materials, different wire diameters, and different mesh sizes for mixed weaving. According to customer needs and market demands, different weft wire diameters and warp and weft mesh sizes are set for weaving. The specific steps are as follows: S1. Wrap the mesh wire used for weaving around the raw material shaft according to the reed parameter index, and the length of each group needs to be consistent; S2, pass the mesh wire used for weaving the net through the palm sheet and the steel reed. The palm sheet is divided into front and back sheets, and ensure that one of the two adjacent wires passes through the front sheet and the other passes through the back sheet; S3, evenly stick the warp threads passing through the palm sheet and the reed on the tape, give a certain tension, and start the net weaving equipment; S4. The reciprocating motion of the sword belt drives the weft to be woven. Each time the sword belt reciprocates, the front and rear palm sheets change angles once to ensure that the warp and weft are woven alternately up and down.

2. A method for preparing a solar photovoltaic screen cloth according to claim 1, characterized in that: The mesh wire is made of ordinary stainless steel wire, stainless steel reinforcement wire, ordinary tungsten wire or high-strength tungsten wire. The mesh wire in step S1 is made of at least two materials.

3. A method for preparing a solar photovoltaic screen cloth according to claim 2, characterized in that: The wire diameter of the mesh is 6 microns to 13 microns.

4. The method for preparing a solar photovoltaic screen cloth according to claim 1, characterized in that: The mesh wires with different wire diameters include warp wires and weft wires with different wire diameters.

5. The method for preparing a solar photovoltaic screen cloth according to claim 1, characterized in that: Mesh wires with different wire diameters also include different wire diameters of warp wires or different wire diameters of weft wires in the same mesh.

6. The method for preparing a solar photovoltaic screen cloth according to claim 1, characterized in that: The warp mesh count is 430-640 mesh, and the weft mesh count is 430-680 mesh. The warp mesh count is different from the weft mesh count, making it a double-mesh mesh.

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