A production method for ultra-high voltage insulating rod base cloth

Abstract

The present invention discloses a production method of a UHV insulating pull rod base cloth, including slitting warping, winding the weft yarns on the shaft in batches according to the length, number and interval of actual production requirements, and putting water-soluble yarn in the warping stage of the weft yarns; drawing in and reeding, passing all the warp yarns on the shaft after the slitting warping into the reed according to the drawing in rule; weaving, using a loom to weave according to a set organization diagram to form a multi-layer base cloth; continuous washing and layering shaping, using a continuous desizing and shaping machine to wash the multi-layer base cloth; inspection and rolling; packaging. The present invention uses water-soluble yarn as the connecting organization of the multi-layer base cloth in the weaving stage, connects the multi-layer base cloth at a fixed spacing, so that the multi-layer base cloth forms a whole in the whole weaving process, and the displacement of different layers of base cloth is prevented. At the same time, the outermost layer of the base cloth forms an isolation space inside, and multiple surfaces inside do not contact the outside world, thereby preventing impurities from falling.

Description

Technical Field

[0001] The invention belongs to the field of textile technology, and in particular relates to a production method of a UHV insulating tie rod base cloth. Background Art

[0002] Textile fabrics used for UHV electrical insulation materials to enhance the base material require extremely high cleanliness, because under UHV electric shock, any impurities may cause electric shock breakdown, leading to fatal consequences. Therefore, the fabric is required to have no visible impurities under a 200x magnifying glass. However, the production line of a weaving workshop is usually divided into four or five workshops, and it is impossible to build a dust-free workshop. It is difficult to completely remove the dust in the air during the production process, and it is impossible to produce products with high cleanliness. And because the base fabric requires post-compound processing, it is impossible to use viscose or other machines to clean the fabric surface, and it can only be cleaned manually. However, the wool and badminton produced by the weaving itself will seriously affect the manual inspection, so the pass rate is extremely low and there is a huge risk of impurities being missed and being broken down by electric shock. Summary of the invention

[0003] The present invention provides a method for producing a UHV insulating tie rod base cloth, which can effectively solve the above problems.

[0004] The present invention is achieved in that:

[0005] A method for producing a UHV insulating tie rod base cloth comprises the following steps:

[0006] S1, warping in sections, winding the weft yarns on the shaft in batches according to the length, number and interval required by actual production, and adding water-soluble yarns during the warping stage of the weft yarns;

[0007] S2, drawing in the reed and drawing in the warps, passing all the warp yarns on the shaft after the sectional warping is completed into the reed according to the drawing in rules;

[0008] S3, weaving, using a loom to weave according to a set organization diagram to form a multi-layer base fabric;

[0009] S4, continuous water washing, layering and shaping, using a continuous desizing and shaping machine to wash the multi-layer base fabric;

[0010] S5, inspection and roll separation, using a multi-roll parallel inspection table and dust collector to separate each layer of the multi-layer base fabric into independent rolls, and divide the length according to customer needs;

[0011] S6. Packaging: Pack the branched cloth rolls with plastic packaging film.

[0012] As a further improvement, the S3 includes:

[0013] The base fabric is formed by weaving warp yarns and weft yarns in a plain weave manner using a loom, and the base fabric is a multi-layer 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 is three-layered, the connection of the water-soluble yarn specifically includes:

[0015] The water-soluble yarn is connected obliquely upward from the bottom layer of the base cloth to the top layer of the base cloth, and extends along the V-shape inside the top layer of the base cloth to interweave three adjacent groups of warp yarns, and then is connected obliquely downward to the middle layer of the base cloth, and extends along the V-shape inside the middle layer of the base cloth to interweave two adjacent groups of warp yarns, and then is connected obliquely downward to the bottom layer of the base cloth, and extends along the V-shape inside the bottom layer of the base cloth to interweave three adjacent groups of warp yarns, and then the above process is repeated until the lateral length of the water-soluble yarn is equal to the lateral length of the base cloth.

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

[0017] As a further improvement, the S4 includes:

[0018] The water temperature of the water tanks in the first two sections shall not exceed the water-soluble temperature of the water-soluble yarn, and the water temperature of the water tanks in the third section must exceed the water-soluble temperature of the water-soluble yarn.

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

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

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

[0022] As a further improvement, the S5 comprises:

[0023] The washed and layered cloth is rolled up onto the cloth inspection machine. The inspector uses the low light and surface light on the cloth inspection table to illuminate the cloth surface to make impurities visible and remove the impurities. After the impurity removal is completed, the layered base cloth is simultaneously rolled up by multiple winders arranged in parallel on the cloth inspection machine, thus completing the roll separation process.

[0024] The beneficial effects of the present invention are:

[0025] 1. By using water-soluble yarn as the connecting tissue of the multi-layer base cloth in the weaving stage, the multi-layer base cloth is connected at a fixed interval, so that the multi-layer base cloth forms a whole in the whole weaving process, and the displacement of different layers of base cloth is prevented. At the same time, the outermost layer of the base cloth forms an isolation space inside, so that only the outermost two layers of the entire base cloth are exposed to the air, and multiple internal surfaces are not in contact with the outside world, thereby preventing impurities from falling, so that when cleaning impurities later, only the impurities in the outermost layer need to be cleaned.

[0026] 2. The washing stage is divided into three stages. In the first two stages, the water temperature is set to be lower than the dissolution temperature of the water-soluble yarn, which avoids the dissolution of the water-soluble yarn and can also wash away the yarn oil of the base fabric itself. Since the multi-layer base fabric is still a whole at this time, wrinkles can be effectively avoided, so that the multi-layer base fabric can be washed and dried. Finally, the water temperature of the third stage is set to be higher than the dissolution temperature of the water-soluble yarn, so that the water-soluble yarn can be dissolved in the third stage and carried away by the flowing water, so that the layers of base fabric are completely separated from each other, and finally enter the drying box for drying together. During this process, only the upper and lower outer surfaces of the multi-layer base fabric are in contact with the outside world, eliminating the possibility of impurities falling from the internal surface, so that the cleanliness of the finished product is effectively improved.

[0027] 3. Compared with the production of conventional single-layer base fabrics, the present invention can produce multiple layers of base fabrics at the same time, and the production efficiency is doubled. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic side view of the overall structure of a multi-layer base cloth in a method for producing a base cloth for ultra-high voltage insulation pull rods of the present invention;

[0030] Reference numerals:

[0031] 1- water-soluble yarn, 2- warp yarn, 3- weft yarn. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work 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 drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, the orientations or positional relationships indicated by terms such as "upper", "lower", "above", "both ends", etc. are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] Reference Figure 1 As shown, this embodiment provides a method for producing a UHV insulating tie rod base cloth, comprising the following steps:

[0035] S1, warping in sections, winding the weft yarn 3 on the shaft in batches according to the length, number and interval required by actual production, and adding the water-soluble yarn 1 in the warping stage of the weft yarn;

[0036] S2, drawing in the reed and drawing in the warps, passing all the warp yarns 2 on the shaft after the sectional warping is completed into the reed according to the drawing in rule;

[0037] S3, weaving, using a loom to weave according to a set organization diagram to form a multi-layer base fabric;

[0038] S4, continuous water washing, layering and shaping, using a continuous desizing and shaping machine to wash the multi-layer base fabric;

[0039] S5, inspection and roll separation, using a multi-roll parallel inspection table and dust collector to separate each layer of the multi-layer base fabric into independent rolls, and divide the length according to customer needs;

[0040] S6. Packaging: Pack the branched cloth rolls with plastic packaging film.

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

[0042] Further, the S3 includes:

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

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

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

[0046] The water-soluble yarn 1 is connected obliquely upward from the bottom layer of the base cloth to the top layer of the base cloth, and extends along the V-shape inside the top layer of the base cloth to interweave three adjacent groups of warp yarns 2, and then is connected obliquely downward to the middle layer of the base cloth, and extends along the V-shape inside the middle layer of the base cloth to interweave two adjacent groups of warp yarns 2, and then is connected obliquely downward to the bottom layer of the base cloth, and extends along the V-shape inside the bottom layer of the base cloth to interweave three adjacent groups of warp yarns 2, and then the above process is repeated until the lateral length of the water-soluble yarn 1 is equal to the lateral length of the base cloth.

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

[0048] The fixed spacing between any two adjacent groups of the water-soluble yarns is usually set to between 10-30 cm, so that the layering effect of the base fabric can be achieved and the cost can be effectively controlled.

[0049] In the actual production process, the base fabric may also be a multi-layer structure. When the number of layers of the base fabric is greater than three, the connection of the water-soluble yarn 1 includes:

[0050] The water-soluble yarn 1 is connected obliquely downward from the bottom layer of the base cloth to the top layer of the base cloth, and extends along the V-shape inside the top layer of the base cloth to interweave three adjacent groups of warp yarns 2, and then is connected obliquely downward to the base cloth of the adjacent layer, and extends along the V-shape inside the adjacent layer of the base cloth to interweave two adjacent groups of warp yarns 2. The water-soluble yarn 1 is interwoven inside the base cloths of other adjacent layers in the same way, extending along the V-shape inside the base cloth to interweave two adjacent groups of warp yarns 2, until the water-soluble yarn 1 is connected downward to the bottom layer of the base cloth, and extends along the V-shape inside the bottom layer of the base cloth to interweave three adjacent groups of warp yarns 2.

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

[0052] Further, the S4 includes:

[0053] The continuous desizing and setting machine is used to divide several water tanks into three areas to perform overflow water washing on the multi-layer base fabric, wherein the water temperature of the first two water tanks does not exceed the water-soluble temperature of the water-soluble yarn 1, and the water temperature of the third water tank must exceed the water-soluble temperature of the water-soluble yarn 1.

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

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

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

[0057] The washing stage is divided into three stages. In the first two stages, the water temperature is set to be lower than the dissolution temperature of the water-soluble yarn 1, which avoids the dissolution of the water-soluble yarn 1 and can also wash away the yarn oil of the base cloth itself. Since the multi-layer base cloth is still a whole at this time, wrinkles can be effectively avoided, so that the multi-layer base cloth can be washed and dried. Finally, the water temperature of the third stage is set to be higher than the dissolution temperature of the water-soluble yarn 1, so that the water-soluble yarn 1 can be dissolved in the third stage and carried away by the flowing water, so that the layers of base cloth are completely separated from each other, and finally enter the drying box for drying together. During this process, only the upper and lower outer surfaces of the multi-layer base cloth are in contact with the outside world, eliminating the possibility of impurities falling from the internal surface, so that the cleanliness of the finished product is effectively improved.

[0058] Further, the S5 includes:

[0059] The washed and layered cloth is rolled up onto the cloth inspection machine. The inspector uses the low light and surface light on the cloth inspection table to illuminate the cloth surface to make impurities visible and remove the impurities. After the impurity removal is completed, the layered base cloth is simultaneously rolled up by multiple winders arranged in parallel on the cloth inspection machine, thus completing the roll separation process.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for producing a UHV insulating tie rod base fabric, characterized in that: The following steps are involved: S1, warping in sections, winding the weft yarns on the shaft in batches according to the length, number and interval required by actual production, and adding water-soluble yarns during the warping stage of the weft yarns; S2, drawing in the reed and drawing in the warps, passing all the warp yarns on the shaft after the sectional warping is completed into the reed according to the drawing in rules; S3, weaving, using a loom to weave according to a set organization diagram to form a multi-layer base fabric; S4, continuous water washing, layering and shaping, using a continuous desizing and shaping machine to wash the multi-layer base fabric; S5, inspection and roll separation, using a multi-roll parallel inspection table and dust collector to separate each layer of the multi-layer base fabric into independent rolls, and divide the length according to customer needs; S6. Packaging: Pack the branched cloth rolls with plastic packaging film.

2. The method for producing the UHV insulating tie rod base fabric according to claim 1, characterized in that: The S3 includes: The base fabric is formed by weaving warp yarns and weft yarns in a plain weave manner using a loom, and the base fabric is a multi-layer overlapping structure, that is, the base fabric has at least two layers, and the base fabrics are connected by water-soluble yarns.

3. The method for producing the UHV insulating tie rod base fabric according to claim 2, characterized in that: When the base fabric is three-layered, the connection of the water-soluble yarn includes: The water-soluble yarn is connected obliquely upward from the bottom layer of the base cloth to the top layer of the base cloth, and extends along the V-shape inside the top layer of the base cloth to interweave three adjacent groups of warp yarns, and then is connected obliquely downward to the middle layer of the base cloth, and extends along the V-shape inside the middle layer of the base cloth to interweave two adjacent groups of warp yarns, and then is connected obliquely downward to the bottom layer of the base cloth, and extends along the V-shape inside the bottom layer of the base cloth to interweave three adjacent groups of warp yarns, and then the above process is repeated until the lateral length of the water-soluble yarn is equal to the lateral length of the base cloth.

4. The method for producing the UHV insulating tie rod base fabric according to claim 3, characterized in that: There is a fixed distance between any two adjacent groups of the water-soluble yarns.

5. The method for producing UHV insulating tie rod base fabric according to claim 1, characterized in that: The S4 includes: The water temperature of the water tanks in the first two sections shall not exceed the water-soluble temperature of the water-soluble yarn, and the water temperature of the water tanks in the third section must exceed the water-soluble temperature of the water-soluble yarn.

6. The method for producing the UHV insulating tie rod base fabric according to claim 5, characterized in that: The water-soluble temperature of the water-soluble yarn is 80°C.

7. The method for producing UHV insulating tie rod base fabric according to claim 5, characterized in that: The water temperature of the three-section water tank of the continuous desizing and setting machine includes: The water temperature of the water tank in the first section area is 40℃-45℃, the water temperature of the water tank in the second section area is 60℃-65℃, and the water temperature of the water tank in the third section area is 80-90℃.

8. The method for producing UHV insulating tie rod base fabric according to claim 1, characterized in that: The S5 includes: The washed and layered cloth is rolled up onto the cloth inspection machine. The inspector uses the low light and surface light on the cloth inspection table to illuminate the cloth surface to make impurities visible and remove the impurities. After the impurity removal is completed, the layered base cloth is simultaneously rolled up by multiple winders arranged in parallel on the cloth inspection machine, thus completing the roll separation process.

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