Production method of extra-high voltage insulating rod base cloth

Abstract

The application discloses a production method of an extra-high voltage insulating pull rod base cloth, which comprises the following steps: slitting and warping, winding weft yarns on a shaft according to the length, the number and the interval of actual production requirements in batches, and putting water-soluble yarns into the weft yarns during the warping stage; drawing-in and reeding, transmitting all warp yarns on the shaft after the slitting and warping into a steel reed according to a drawing-in rule; weaving, using a loom to weave a multi-layer base cloth according to a set weave pattern; continuously washing and layering and setting, using a continuous desizing setting machine to wash the multi-layer base cloth; testing and rolling; and packaging. The water-soluble yarns are used as connecting weaves of the multi-layer base cloth in the weaving stage, the multi-layer base cloth is connected at a fixed interval, the multi-layer base cloth forms an integral whole in the whole weaving process, displacement of different layers of the base cloth is avoided, meanwhile, the outermost layer of the base cloth forms an isolation space inside, the plurality of surfaces inside are not contacted with the outside, and therefore, impurities are avoided from falling.

Description

Technical Field

[0001] This invention belongs to the field of textile technology, and in particular relates to a method for producing a base fabric for ultra-high voltage insulating tie rods. Background Technology

[0002] Textile fabrics used as reinforcing substrates for ultra-high voltage electrical insulation materials require extremely high cleanliness levels. Under ultra-high voltage electric shock, any impurities can trigger electrical breakdown, leading to fatal consequences. Therefore, the fabric must be free of visible impurities under a 200x magnifying glass. However, weaving production lines are typically divided into four or five workshops, making it impossible to build a cleanroom. Dust in the air during production is difficult to completely remove, hindering the production of high-cleanliness products. Furthermore, because the base fabric requires subsequent lamination processing, adhesives or other machinery cannot be used to clean the fabric surface; manual cleaning is the only option. However, the lint and fluff generated by the weaving process severely impact manual inspection, resulting in an extremely low pass rate and a significant risk of impurities being missed and causing electrical breakdown. Summary of the Invention

[0003] This invention provides a method for producing ultra-high voltage insulating tie rod base fabric, which can effectively solve the above-mentioned problems.

[0004] This invention is implemented as follows:

[0005] A method for producing ultra-high voltage insulating tie rod base fabric includes the following steps:

[0006] S1. Slitting and warping: The weft yarn is wound onto the beam in batches according to the length, number of yarns and intervals required for actual production. At the same time, water-soluble yarn is added during the warping stage of the weft yarn.

[0007] S2, threading the heddle and reed: After the warping of the slits is completed, all the warp yarns on the beam are fed into the reed according to the threading rules;

[0008] S3. Weaving: Using a loom to weave multiple layers of base fabric according to a set weave pattern;

[0009] S4. Continuous washing and layering setting: The multi-layer base fabric is washed using a continuous desizing and setting machine.

[0010] S5. Inspection and Separation: Using a multi-roll parallel inspection table and dust collector, each layer of the multi-layer base fabric is separated into an independent roll, and the length is branched according to customer requirements.

[0011] S6. Packaging: Pack the divided fabric rolls with plastic wrap.

[0012] As a further improvement, S3 includes:

[0013] The base fabric is formed by weaving warp and weft yarns using a loom with a plain weave, and the base fabric has a multi-layered overlapping structure, that is, the base fabric has at least two layers, and the base fabrics are connected by water-soluble yarns.

[0014] As a further improvement, when the base fabric has three layers, the connection of the water-soluble yarn specifically includes:

[0015] The water-soluble yarn is inclined upward from the bottom layer of the base fabric to the top layer of the base fabric, and extends in a V-shape along the inside of the top layer of the base fabric, interlacing with three adjacent sets of warp yarns. Then it is inclined downward to the middle layer of the base fabric, and extends in a V-shape along the inside of the middle layer of the base fabric, interlacing with two adjacent sets of warp yarns. Then it is inclined downward to the bottom layer of the base fabric, and extends in a V-shape along the inside of the bottom layer of the base fabric, interlacing with three adjacent sets of warp yarns. The above process is repeated until the transverse length of the water-soluble yarn is equal to the transverse length of the base fabric.

[0016] As a further improvement, there is a fixed spacing between any two adjacent sets of the water-soluble yarns.

[0017] As a further improvement, S4 includes:

[0018] The multi-layer base fabric is overflow washed by dividing several water tanks into three sections using a continuous desizing and setting machine. The water temperature in the first two sections does not exceed the water-soluble temperature of the water-soluble yarn, while the water temperature in the third section must exceed the water-soluble temperature of the water-soluble yarn.

[0019] As a further improvement, the water-soluble yarn has a water-soluble temperature of 80°C.

[0020] As a further improvement, the water temperature of the three-section zone water tank of the continuous desizing and setting machine includes:

[0021] The water temperature in the first section is 40℃-45℃, the water temperature in the second section is 60℃-65℃, and the water temperature in the third section is 80℃-90℃.

[0022] As a further improvement, S5 includes:

[0023] The washed and layered fabric is rolled onto the fabric inspection machine. The inspector illuminates the fabric surface with low and front lights on the inspection table to make impurities visible and removes them. After the impurity removal is completed, multiple winding machines arranged in parallel on the fabric inspection machine simultaneously wind up the layered base fabric to complete the winding process.

[0024] The beneficial effects of this invention are:

[0025] 1. By using water-soluble yarn as a connecting structure for multiple layers of base fabric during the weaving stage, the multiple layers of base fabric are connected at fixed intervals, so that the multiple layers of base fabric form a whole during the entire weaving process, preventing displacement of different layers of base fabric. At the same time, the outermost layer of the base fabric forms an isolation space inside, so that only the outermost two layers of the entire base fabric are exposed to the air, and multiple surfaces inside do not come into contact with the outside world, thereby preventing impurities from falling in. When cleaning impurities later, only the impurities on the outermost layer need to be cleaned.

[0026] 2. The washing process is divided into three stages. In the first two stages, the water temperature is set below the dissolution temperature of the water-soluble yarn. This avoids dissolving the water-soluble yarn while simultaneously washing away the yarn oil from the base fabric itself. Since the multiple layers of base fabric are still a single unit at this stage, wrinkles can be effectively avoided, allowing the multiple layers of base fabric to be washed and dried. Finally, in the third stage, the water temperature is set above the dissolution temperature of the water-soluble yarn, allowing the water-soluble yarn to dissolve in the third stage and be carried away by the flowing water. This completely separates the layers of base fabric, which are then placed together in a drying oven for drying. During this process, only the top and bottom outer surfaces of the multiple layers of base fabric come into contact with the outside environment, eliminating the possibility of impurities falling from the internal surfaces and effectively improving the cleanliness of the finished product.

[0027] 3. Compared with the conventional production of single-layer base fabric, the present invention can produce multiple layers of base fabric at the same time, thus increasing production efficiency many times over. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a side view schematic diagram of the overall structure of the multi-layer base fabric in the production method of the ultra-high voltage insulating tie rod base fabric of the present invention;

[0030] Figure label:

[0031] 1-Water-soluble yarn, 2-Warp yarn, 3-Weft yarn. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, the terms "upper", "lower", "above", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limiting this invention.

[0034] Reference Figure 1 As shown, this embodiment provides a method for producing ultra-high voltage insulating tie rod base fabric, including the following steps:

[0035] S1. Slitting and warping: Weft yarn 3 is wound onto the beam in batches according to the length, number of yarns and intervals required for actual production. At the same time, water-soluble yarn 1 is added during the warping stage of the weft yarn.

[0036] S2, threading the heddle and reed: After the warping of the slits is completed, all the warp yarns 2 on the beam are fed into the reed according to the threading rules;

[0037] S3. Weaving: Using a loom to weave multiple layers of base fabric according to a set weave pattern;

[0038] S4. Continuous washing and layering setting: The multi-layer base fabric is washed using a continuous desizing and setting machine.

[0039] S5. Inspection and Separation: Using a multi-roll parallel inspection table and dust collector, each layer of the multi-layer base fabric is separated into an independent roll, and the length is branched according to customer requirements.

[0040] S6. Packaging: Pack the divided fabric rolls with plastic wrap.

[0041] In the slitting and warping process of water-soluble yarn in this embodiment, 4-16 strips of water-soluble yarn are placed on the warp beam at intervals of 20-30cm.

[0042] Furthermore, S3 includes:

[0043] The warp yarns 2 and weft yarns 3 are woven into a base fabric using a plain weave on a loom. The base fabric has a multi-layered overlapping structure, meaning that the base fabric has at least two layers, and the base fabrics are connected by water-soluble yarns 1.

[0044] By interlacing water-soluble yarn 1 during the weaving stage, multiple layers of base fabric are connected at fixed intervals, so that the multiple layers of base fabric form a whole during the entire weaving process, preventing displacement of different layers of base fabric. At the same time, the outermost layer of the base fabric forms an isolation space inside, so that only the outermost two layers of the entire base fabric are exposed to the air, and multiple surfaces inside do not come into contact with the outside world, thereby preventing impurities from falling in. When cleaning impurities later, only the impurities on the outermost layer need to be cleaned.

[0045] Furthermore, when the base fabric has three layers, the connection of the water-soluble yarn 1 specifically includes:

[0046] Water-soluble yarn 1 is inclined upward from the bottom layer of the base fabric to the top layer of the base fabric, and extends in a V-shape along the inside of the top layer of the base fabric, interlacing with three adjacent sets of warp yarns 2. Then it is inclined downward to the middle layer of the base fabric, and extends in a V-shape along the inside of the middle layer of the base fabric, interlacing with two adjacent sets of warp yarns 2. Then it is inclined downward to the bottom layer of the base fabric, and extends in a V-shape along the inside of the bottom layer of the base fabric, interlacing with three adjacent sets of warp yarns 2. The above process is repeated until the transverse length of water-soluble yarn 1 is equal to the transverse length of the base fabric.

[0047] Furthermore, there is a fixed spacing between any two adjacent sets of the water-soluble yarns.

[0048] The fixed spacing between any two adjacent groups of water-soluble yarns is usually set between 10-30cm, which can achieve the layering effect of the base fabric and effectively control the cost.

[0049] In actual production, the base fabric can also have a multi-layered structure. When the number of layers in the base fabric is greater than three, the connection of the water-soluble yarn 1 includes:

[0050] Water-soluble yarn 1 is inclined downwards from the bottom layer of the base fabric to the top layer of the base fabric, and extends in a V-shape along the inside of the top layer of the base fabric, interlacing with three adjacent sets of warp yarns 2. Then it is inclined downwards to the base fabric of the adjacent layer, and extends in a V-shape along the inside of the base fabric of the adjacent layer, interlacing with two adjacent sets of warp yarns 2. The water-soluble yarn 1 is also interlaced in the base fabric of other adjacent layers in the same way, extending in a V-shape along the inside of the base fabric, interlacing with two adjacent sets of warp yarns 2, until the water-soluble yarn 1 is connected downwards to the bottom layer of the base fabric, and extends in a V-shape along the inside of the bottom layer of the base fabric, interlacing with three adjacent sets of warp yarns 2.

[0051] The water-soluble yarn 1 is connected in this way to ensure that the base fabrics of different layers are not easily displaced, to ensure the stability of the overall connection of the multi-layer base fabric, and to ensure that the connection between the bottom layer and the top layer of base fabric is more stable, so that the two will not be displaced. This ensures that during the production process of the multi-layer base fabric, only the bottom layer and the top layer are exposed to the outside, thus ensuring the cleanliness of the inside of the multi-layer base fabric.

[0052] Furthermore, S4 includes:

[0053] The multi-layer base fabric is overflow washed by dividing several water tanks into three sections using a continuous desizing and setting machine. The water temperature in the first two sections does not exceed the water-soluble temperature of the water-soluble yarn 1, while the water temperature in the third section must exceed the water-soluble temperature of the water-soluble yarn 1.

[0054] Furthermore, the water-soluble yarn 1 has a water-soluble temperature of 80°C.

[0055] Furthermore, the water temperature of the three-section zone water tank of the continuous desizing and setting machine includes:

[0056] The water temperature in the first section is 40℃-45℃, the water temperature in the second section is 60℃-65℃, and the water temperature in the third section is 80℃-90℃.

[0057] The washing process is divided into three stages. In the first two stages, the water temperature is set below the dissolution temperature of the water-soluble yarn 1. This avoids the dissolution of the water-soluble yarn 1 while simultaneously washing away the yarn oil from the base fabric itself. Since the multiple layers of base fabric are still a single unit at this stage, wrinkles can be effectively avoided, allowing the multiple layers of base fabric to be washed and dried. Finally, in the third stage, the water temperature is set above the dissolution temperature of the water-soluble yarn 1, allowing the water-soluble yarn 1 to dissolve in the third stage and be carried away by the flowing water. This completely separates the layers of base fabric, which are then placed together in a drying oven for drying. During this process, only the top and bottom outer surfaces of the multiple layers of base fabric come into contact with the outside environment, eliminating the possibility of impurities falling from the internal surfaces and effectively improving the cleanliness of the finished product.

[0058] Furthermore, S5 includes:

[0059] The washed and layered fabric is rolled onto the fabric inspection machine. The inspector illuminates the fabric surface with low and front lights on the inspection table to make impurities visible and removes them. After the impurity removal is completed, multiple winding machines arranged in parallel on the fabric inspection machine simultaneously wind up the layered base fabric to complete the winding process.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A method for producing a base fabric for ultra-high voltage insulating tie rods, characterized in that, Includes the following steps: S1. Slitting and warping: The weft yarn is wound onto the beam in batches according to the length, number of yarns and intervals required for actual production. At the same time, water-soluble yarn is added during the warping stage of the weft yarn. S2, threading the heddle and reed: After the warping of the slits is completed, all the warp yarns on the beam are fed into the reed according to the threading rules; S3. Weaving: Using a loom to weave a multi-layered base fabric according to a set weave diagram, including: using a loom to weave warp and weft yarns in a plain weave pattern to form a base fabric, and the base fabric is a multi-layered overlapping structure, that is, the base fabric has at least two layers, and the base fabrics are connected by water-soluble yarns, and there is a fixed spacing between any two adjacent sets of water-soluble yarns. When the base fabric has three layers, the connection of the water-soluble yarn includes: The water-soluble yarn is inclined upward from the bottom layer of the base fabric to the top layer of the base fabric, and extends in a V-shape along the inside of the top layer of the base fabric, interlacing with three adjacent sets of warp yarns. Then it is inclined downward to the middle layer of the base fabric, and extends in a V-shape along the inside of the middle layer of the base fabric, interlacing with two adjacent sets of warp yarns. Then it is inclined downward to the bottom layer of the base fabric, and extends in a V-shape along the inside of the bottom layer of the base fabric, interlacing with three adjacent sets of warp yarns. The above process is repeated until the transverse length of the water-soluble yarn is equal to the transverse length of the base fabric. S4. Continuous washing and layering setting: The multi-layer base fabric is washed using a continuous desizing and setting machine, including: The multi-layer base fabric is overflow washed by dividing several water tanks into three sections using a continuous desizing and setting machine. The water temperature in the first two sections does not exceed the water-soluble temperature of the water-soluble yarn, while the water temperature in the third section must exceed the water-soluble temperature of the water-soluble yarn. S5. Inspection and Separation: Using a multi-roll parallel inspection table and dust collector, each layer of the multi-layer base fabric is separated into an independent roll, and the length is branched according to customer requirements. S6. Packaging: Pack the divided fabric rolls with plastic wrap.

2. The method for producing the ultra-high voltage insulating tie rod base fabric according to claim 1, characterized in that, The water-soluble yarn has a water solubility temperature of 80℃.

3. The method for producing the ultra-high voltage insulating tie rod base fabric according to claim 1, characterized in that, The water temperatures in the three-section water tanks of the continuous desizing and setting machine include: The water temperature in the first section is 40℃-45℃, the water temperature in the second section is 60℃-65℃, and the water temperature in the third section is 80℃-90℃.

4. The method for producing the ultra-high voltage insulating tie rod base fabric according to claim 1, characterized in that, S5 includes: The washed and layered fabric is rolled onto the fabric inspection machine. The inspector illuminates the fabric surface with low and front lights on the inspection table to make impurities visible and removes them. After the impurity removal is completed, multiple winding machines arranged in parallel on the fabric inspection machine simultaneously wind up the layered base fabric to complete the winding process.

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