CN111312455A - Method for improving qualified rate of finished wire and cable products - Google Patents
Method for improving qualified rate of finished wire and cable products Download PDFInfo
- Publication number
- CN111312455A CN111312455A CN201911302451.XA CN201911302451A CN111312455A CN 111312455 A CN111312455 A CN 111312455A CN 201911302451 A CN201911302451 A CN 201911302451A CN 111312455 A CN111312455 A CN 111312455A
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- Prior art keywords
- cable
- improving
- wire
- protective layer
- qualification rate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/228—After-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
- H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electric Cables (AREA)
Abstract
The invention discloses a method for improving the qualification rate of finished wire and cable products, which comprises the following steps: (1) the winding displacement shafts are arranged at equal intervals through the same-size winding displacement shafts; (2) the angle of the cable in the corner turning process of the cable in the cabling process is kept to be an obtuse angle; (3) in the extrusion process of the outer protective layer, cleaning particles and adhesive existing in a die orifice of an extruder; (4) during the carrying process, the outermost layer of the cable is covered with a layer of cushion. The method can reduce the damage of the outer protective layer, avoid the knotting and snaking of the cable, improve the appearance quality of the outer protective layer of the cable and improve the qualification rate of the finished wire and cable products.
Description
Technical Field
The invention relates to a wire and a cable, in particular to a method for improving the qualification rate of a wire and cable finished product.
Background
With the development of the communication industry, the matched products are continuously updated, the electrification, automation and systematization degree of the equipment is continuously improved, the usage amount of the cable used as the blood vessel and nerve is larger and larger, and the higher requirements on the quality level and the safety and the reliability of the products are provided. In order to further improve the performance of the cable, the personnel in the industry generally focus on the technical methods such as the formula and the like, but neglect the quality problems in the cabling and looping process, and in the cabling and looping process, the technical problems of snakelike cable, core insulation damage and the like frequently occur after cabling.
Disclosure of Invention
The invention aims to provide a method for improving the qualification rate of finished products of wires and cables, which can reduce the damage of an outer protective layer, avoid the knotting and snaking of the cables, improve the appearance quality of the outer protective layer of the cables and improve the qualification rate of the finished products of the wires and cables.
In order to achieve the above object, the present invention provides a method for increasing the qualification rate of finished wire and cable products, comprising: (1) the winding displacement shafts are arranged at equal intervals through the same-size winding displacement shafts; (2) keeping the angle of the cable in the corner turning process of the cable in the cabling process to be an obtuse angle; (3) in the extrusion process of the outer protective layer, cleaning particles and adhesive existing in a die orifice of an extruder; (4) during the carrying process, the outermost layer of the cable is covered with a layer of cushion.
Preferably, the method further comprises a cooling step of cooling the outer sheath in a cooling tank after the outer sheath is extruded, wherein the drawing speed is controlled in such a way that the temperature of the outer sheath coming out of the cooling tank is reduced to room temperature or below.
Preferably, the step (3) further includes a step of performing appearance screening on the cooled outer protective layer, and if the outer protective layer has surface defects, the product at the stage is judged to be unqualified and cannot be transferred to the next process.
Preferably, the outer sheath has surface defects including one or more of poor plasticization, small particles on the surface, bubbles, impurities, and non-uniformity in outer diameter.
Preferably, if the outer jacket has small particles on its surface, the extrusion temperature is increased by 5 to 10 degrees or the screw and haul-off speed is reduced.
Preferably, if there are air bubbles or air holes on the surface of the outer sheath, the feeding of the outer sheath is dried before extrusion.
Preferably, the method further comprises the step of judging whether the thickness, the thin point and the tightness of the outer protective layer meet the requirements, and if the thickness, the thin point and the tightness do not meet the requirements of the enterprise standards or the national standards, the next procedure cannot be transferred.
Preferably, if the thickness, the thin point and the tightness of the outer protective layer do not meet the requirements, the extrusion and traction speeds of the screw are adjusted to be uniform.
In the above technical solution, the method for improving the qualification rate of the finished wire and cable product of the present invention comprises: (1) the winding displacement shafts are arranged at equal intervals through the same-size winding displacement shafts; therefore, the cable or the cable core can be sequentially extended or retracted into the wire arranging device in the wire collecting and arranging process, and snake-shaped or torsion cannot occur; (2) the angle of the cable in the corner turning process of the cable in the cabling process is kept to be an obtuse angle; therefore, in the traction process, the cable or the wire core cannot be knotted, (3) in the extrusion process of the outer protective layer, particles and adhesive existing in a die orifice of the extruder are cleaned; therefore, the preparation defects of pits and the like in the extrusion process of the outer protective layer can be avoided. (4) In the handling process, at the outmost cladding one deck cushion of cable, can prevent that the damage of outer jacket from appearing in the handling of cable. Therefore, the method can reduce the damage of the outer protective layer, avoid the knotting and snaking of the cable, improve the appearance quality of the outer protective layer of the cable and improve the qualified rate of the finished wire and cable products. Wherein, the qualification rate of the product can be improved by 30 percent compared with the prior art which does not adopt the method. Moreover, the production efficiency of the cable can be obviously improved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the terms "upper, lower, top, bottom, far, near, side," and the like included in the terms simply represent the orientation of the terms in a conventional use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
A method for improving the qualification rate of finished wire and cable products comprises the following steps: (1) the winding displacement shafts are arranged at equal intervals through the same-size winding displacement shafts; therefore, the cable or the cable core can be sequentially extended or retracted into the wire arranging device in the wire collecting and arranging process, and snake-shaped or torsion cannot occur; (2) the angle of the cable in the corner turning process of the cable in the cabling process is kept to be an obtuse angle; therefore, in the traction process, the cable or the wire core cannot be knotted, (3) in the extrusion process of the outer protective layer, particles and adhesive existing in a die orifice of the extruder are cleaned; therefore, the preparation defects of pits and the like in the extrusion process of the outer protective layer can be avoided. (4) In the handling process, at the outmost cladding one deck cushion of cable, can prevent that the damage of outer jacket from appearing in the handling of cable. Therefore, the method can reduce the damage of the outer protective layer, avoid the knotting and snaking of the cable, improve the appearance quality of the outer protective layer of the cable and improve the qualified rate of the finished wire and cable products.
In the above technical solutions, the steps (1), (2), (3) and (4) are only the number of steps in the present technical solution, and are not necessary step sequences.
In a preferred embodiment of the present invention, the method further comprises a step of cooling the outer jacket in a cooling tank after the outer jacket is extruded, wherein the drawing rate is controlled such that the temperature of the outer jacket coming out of the cooling tank is reduced to room temperature or below. Therefore, the outer protective layer can be prevented from generating overall uneven thickness.
In a preferred embodiment of the present invention, the step (3) further includes a step of performing an appearance screening on the cooled outer sheath, and if the outer sheath has surface defects, the product at that stage is determined to be not qualified and cannot be transferred to the next process.
In a preferred embodiment of the present invention, the outer sheath has surface defects including one or more of poor plasticization, small particles on the surface, bubbles, impurities, and unevenness in outer diameter.
In a preferred embodiment of the invention, if the outer sheath has small particles on its surface, the extrusion temperature is increased by 5 to 10 degrees or the screw and draw speed are reduced.
In a preferred embodiment of the present invention, if there are bubbles or pores on the surface of the outer sheath, the feed to the outer sheath is dried before extrusion.
In a preferred embodiment of the present invention, the method further includes a step of determining whether the thickness, the thin point, and the tightness of the overcoat layer meet requirements, and if the requirements of the enterprise or national standard are not met, the next process cannot be performed.
In a preferred embodiment of the present invention, if the thickness, thinness point, and tightness of the outer jacket are not satisfactory, the screw extrusion and traction speeds are adjusted to a uniform speed.
The following is a specific embodiment of the present invention: a method for improving the qualification rate of finished wire and cable products comprises the following steps: in the extrusion process of the outer protective layer, cleaning particles and adhesive existing in a die orifice of an extruder; a cooling step of cooling the outer sheath in a cooling tank after the outer sheath is extruded, wherein the traction rate is controlled in such a way that the temperature of the outer sheath coming out of the cooling tank is reduced to room temperature or below; then, carrying out appearance screening on the cooled outer protective layer, judging that the product at the stage is unqualified if the outer protective layer has surface defects, and cutting and trimming the unqualified part to avoid transferring to the next procedure; on the other hand, if the outer protective layer has small particles on the surface, the extrusion temperature is increased by 5-10 ℃ or the screw and traction speed is reduced, so that the generation of defects is reduced; if the surface of the outer protective layer has bubbles or air holes, the feeding of the outer protective layer is dried before extrusion; if the thickness, the thin point and the tightness of the outer protective layer do not meet the requirements, adjusting the extrusion and traction speeds of the screw rod to be uniform; during the carrying process, the outermost layer of the cable is covered with a layer of cushion.
In the process of cable or wire core circulation, the winding displacement shafts are kept equidistantly arranged through the same-size winding displacement shafts; the angle of the cable in the corner turning process of the cable in the cabling process is kept to be an obtuse angle; after the arrangement, the cable is less prone to snake-shaped phenomenon and free of knotting phenomenon.
According to the method, the damage of the outer protective layer can be obviously reduced, the knotting and snaking of the cable can be avoided, the appearance quality of the outer protective layer of the cable can be improved, and the qualification rate of finished products of the electric wire and the cable can be improved, wherein the qualification rate of the products can be improved by 30% compared with that of the products which are not obtained according to the method in the past. Moreover, the production efficiency of the cable can be obviously improved.
In the technical scheme, the required judgment basis can be national standard, enterprise standard, line standard and the like, and can be adjusted according to the requirements of customers.
The present invention is not limited to the specific details of the above-described embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. A method for improving the qualification rate of finished wire and cable products is characterized by comprising the following steps:
(1) the winding displacement shafts are arranged at equal intervals through the same-size winding displacement shafts;
(2) the angle of the cable in the corner turning process of the cable in the cabling process is kept to be an obtuse angle;
(3) in the extrusion process of the outer protective layer, cleaning particles and adhesive existing in a die orifice of an extruder;
(4) during the carrying process, the outermost layer of the cable is covered with a layer of cushion.
2. The method of claim 1, further comprising a step of cooling the outer jacket in a cooling tank after the outer jacket is extruded, wherein the drawing rate is controlled such that the temperature of the outer jacket from the cooling tank is reduced to room temperature or lower.
3. The method for improving the qualification rate of the wire and cable finished products according to claim 2, wherein the step (3) further comprises the step of performing appearance screening on the cooled outer protective layer, and if the outer protective layer has surface defects, the products at the stage are judged to be unqualified and cannot be transferred to the next process.
4. The method of claim 3, wherein the outer jacket has surface defects including one or more of poor plasticization, small particles on the surface, bubbles, impurities, and uneven outer diameter.
5. The method for improving the qualification rate of the wire and cable products as claimed in claim 4, wherein if the outer sheath has small particles on the surface, the extrusion temperature is increased by 5-10 degrees or the screw and drawing speed is reduced.
6. The method for improving the qualification rate of the wire and cable products as claimed in claim 4, wherein if the surface of the outer sheath has air bubbles or air holes, the feeding material of the outer sheath is dried before the extrusion.
7. The method for improving the qualification rate of the finished wire and cable products as claimed in claim 2, further comprising the step of judging whether the thickness, the thin point and the tightness of the outer sheath meet the requirements, and if not, the next procedure cannot be performed.
8. The method for improving the qualification rate of the wire and cable finished products according to claim 6, wherein if the thickness, the thin point and the tightness of the outer sheath do not meet the requirements, the extruding and drawing speeds of the screw rod are adjusted to be uniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302451.XA CN111312455A (en) | 2019-12-17 | 2019-12-17 | Method for improving qualified rate of finished wire and cable products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302451.XA CN111312455A (en) | 2019-12-17 | 2019-12-17 | Method for improving qualified rate of finished wire and cable products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111312455A true CN111312455A (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911302451.XA Pending CN111312455A (en) | 2019-12-17 | 2019-12-17 | Method for improving qualified rate of finished wire and cable products |
Country Status (1)
| Country | Link |
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| CN (1) | CN111312455A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134815A (en) * | 1987-11-20 | 1989-05-26 | Hitachi Cable Ltd | Line substance heat blow fusing method |
| CN108695027A (en) * | 2018-08-19 | 2018-10-23 | 重庆泰山电缆有限公司 | Pre-twisted guide wheel mechanism group, insulated wire cores stranding device and method |
| CN109102967A (en) * | 2018-07-10 | 2018-12-28 | 安徽润藤电缆材料科技有限公司 | A kind of zygonema device for wire and cable processing |
-
2019
- 2019-12-17 CN CN201911302451.XA patent/CN111312455A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01134815A (en) * | 1987-11-20 | 1989-05-26 | Hitachi Cable Ltd | Line substance heat blow fusing method |
| CN109102967A (en) * | 2018-07-10 | 2018-12-28 | 安徽润藤电缆材料科技有限公司 | A kind of zygonema device for wire and cable processing |
| CN108695027A (en) * | 2018-08-19 | 2018-10-23 | 重庆泰山电缆有限公司 | Pre-twisted guide wheel mechanism group, insulated wire cores stranding device and method |
Non-Patent Citations (2)
| Title |
|---|
| GANGHUILED2012: "电线电缆各工序常见问题分析", 《豆丁网》 * |
| 陈凯: "成缆常见问题及解决方法", 《豆丁网》 * |
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Application publication date: 20200619 |
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| RJ01 | Rejection of invention patent application after publication |