CN-117123762-B - High-voltage cable continuous production line and cable production process using same

Abstract

The application relates to a high-voltage cable continuous production line which comprises a machine body, wherein one end of the machine body in the length direction is provided with a plurality of uncoiling rollers, the other end of the machine body in the length direction is provided with a winding roller, a casting mold is arranged between the uncoiling rollers and the winding roller, one side of the casting mold facing the winding roller is provided with a mold cavity, one side of the casting mold facing the uncoiling rollers is provided with a plurality of wire core holes, the wire core holes are all communicated with the mold cavity, the side wall of the casting mold is provided with an insulating layer runner, an aluminum liquid runner and a protection layer runner, and the insulating layer runner, the aluminum liquid runner and the protection layer runner are all communicated with the mold cavity. The application has the effect of reducing the probability of cracking in the aluminum sleeve.

Inventors

• YUE ZHENGUO
• QIAN CHAOHUI
• ZHU JUNFEI
• ZHANG YUCHENG
• ZHU HUILIAN
• HAN QIFANG
• YANG SHIDONG

Assignees

• 浙江晨光电缆股份有限公司

Dates

Publication Date

20260508

Application Date

20230920

Claims (5)

1. 1. The utility model provides a high-voltage cable continuous production line, includes organism (1), organism (1) is gone up length direction one end and is provided with a plurality of decoiles roller (2), and organism (1) length direction other end is provided with wind-up roll (3), wherein, organism (1) is provided with pouring mould (4) between decoiles roller (2) and wind-up roll (3), mould cavity (5) have been seted up towards wind-up roll (3) one side to pouring mould (4), a plurality of sinle silk holes (6) have been seted up towards decoiles roller (2) one side to pouring mould (4), sinle silk hole (6) all communicate mould cavity (5), insulating layer runner (7), aluminium liquid runner (8) and protective layer runner (9) have been seted up on pouring mould (4) lateral wall, insulating layer runner (7), aluminium liquid runner (8) and protective layer runner (9) all communicate mould cavity (5). The aluminum liquid runner (8) comprises a liquid inlet part (81) and a forming part (82) which are both arranged on the pouring die (4), one end of the liquid inlet part (81) penetrates through the pouring die (4) to be communicated with the outside of the pouring die (4), one end of the forming part (82) is communicated with the liquid inlet part (81), and the other end of the forming part is communicated with the die cavity (5); The insulating layer runner (7) comprises injection parts (71), annular runners (72) and branch runners (73) which are all arranged on the pouring die (4), one end of each injection part (71) penetrates through the pouring die (4) to be communicated with the outside of the pouring die (4), the annular runners (72) are arranged at one end, far away from the pouring die (4), of each injection part (71), the annular runners (72) are distributed annularly along the section of the pouring die (4), a plurality of branch runners (73) are uniformly distributed along the circumferential direction of each annular runner (72), one end of each branch runner (73) is communicated with the annular runner (72), and the other end of each branch runner is communicated with the die cavity (5); a first cooling cavity (10) is formed in the pouring die (4), and the first cooling cavity (10) is arranged at the periphery of the forming part (82); The pouring die (4) is provided with a second cooling cavity (11), and the second cooling cavity (11) is arranged on the periphery of the die cavity (5).
2. 2. The high-voltage cable continuous production line according to claim 1, wherein the casting mold (4) is provided with a winding assembly (12) towards one end of the uncoiling roller (2), the winding assembly (12) comprises a winding gear (121), a winding gear ring (122) and a power piece (123), the winding gear (121) is provided with a plurality of threading holes (19), the winding gear (121) is rotatably arranged on the casting mold (4) corresponding to the wire core holes (6), the winding gear ring (122) is sleeved outside the winding gear (121), the winding gear ring (122) is rotatably arranged on the casting mold (4), the winding gear ring (122) is meshed with the winding gear wheels (121), the power piece (123) is arranged on the machine body (1), and the power piece (123) drives the winding gear ring (122) to rotate.
3. 3. A high-voltage cable continuous production line according to claim 2, characterized in that the winding assembly (12) is detachably arranged on the casting mould (4).
4. 4. The high-voltage cable continuous production line according to claim 1, wherein an installation table (13) is fixedly arranged on the machine body (1), and the pouring die (4) is detachably arranged on the installation table (13).
5. 5. A high-voltage cable production process using the high-voltage cable continuous production line according to claim 1, comprising the steps of: S1, uncoiling, namely, installing a steel wire coil on an uncoiling roller (2) for uncoiling; s2, coiling, namely equally dividing a plurality of uncoiled steel wires into a plurality of parts, coiling each part to form a wire core, and enabling the wire core formed by coiling to enter a die cavity (5) of a pouring die (4) through a wire core hole (6); S3, pouring an aluminum sleeve, conveying aluminum liquid from a liquid inlet part (81) into a forming part (82), cooling and forming the aluminum sleeve in the forming part (82), and then, entering a die cavity (5) to cover the outside of the wire core; s4, pouring an insulating layer, introducing molten PVC polyethylene into the die cavity (5) from the insulating layer runner (7), and filling and cooling the molten PVC polyethylene between the wire core and the aluminum sleeve to form the insulating layer; s5, pouring a protective layer, and introducing molten rubber into a die cavity (5) from a protective layer runner (9) to cool the molten rubber outside the aluminum sleeve to form a protective layer; and S6, winding, namely winding the formed cable on a winding roller (3) to finish the processing of the cable.

Description

High-voltage cable continuous production line and cable production process using same Technical Field The application relates to the field of cable production, in particular to a high-voltage cable continuous production line and a cable production process using the same. Background The high-voltage cable is one of power cables, and is used for transmitting power between 1kv and 1000kv and is mostly applied to power transmission and distribution, and the high-voltage cable is respectively from inside to outside, namely a conductive wire core, an insulating layer coated outside the conductive wire core, an aluminum sleeve coated outside the insulating layer and a wear-resistant protective layer coated outside the aluminum sleeve. The aluminum sleeve in the existing high-voltage cable is sleeved on the aluminum ring outside the insulating layer through bending and welding of the aluminum plate, and then the aluminum ring is reduced in diameter through the diameter reducing device, so that the inner wall of the aluminum ring is attached to the outer wall of the insulating layer to cover the outer wall of the insulating layer to form the aluminum sleeve, the aluminum sleeve is required to be extruded outside the insulating layer in the production process, the aluminum ring is enabled to be reduced in diameter, the aluminum ring is easy to crack during the process, and the formed aluminum sleeve is cracked, so that the performance of the formed aluminum sleeve is affected. Disclosure of Invention In order to reduce the probability of cracking in the aluminum sleeve, the application provides a high-voltage cable continuous production line. The application provides a high-voltage cable continuous production line which adopts the following technical scheme: The utility model provides a high-voltage cable continuous production line, includes the organism, length direction one end is provided with a plurality of uncoiling rollers on the organism, and the organism length direction other end is provided with the wind-up roll, the organism is provided with the casting mould between uncoiling roller and wind-up roll, the die cavity has been seted up towards wind-up roll one side to casting mould, and a plurality of sinle silk holes have been seted up towards uncoiling roller one side to casting mould, sinle silk hole all communicates the die cavity, has seted up insulating layer runner, aluminium liquid runner and protective layer runner on the casting mould lateral wall, and insulating layer runner, aluminium liquid runner and protective layer runner all communicate the die cavity. Through adopting above-mentioned technical scheme, pour the molten aluminium liquid into the aluminium cover through pouring die to reduce the probability that produces the crack in the aluminium cover because of the reducing. Optionally, the molten aluminum runner includes feed liquor portion and the shaping portion of all seting up on pouring the mould, feed liquor portion one end runs through pouring the mould and feeds through outside the pouring the mould, shaping portion one end intercommunication feed liquor portion, the other end intercommunication die cavity. Through adopting above-mentioned technical scheme, setting up of shaping portion can make the aluminium liquid cladding outside the sinle silk after the shaping again. Optionally, the insulating layer runner is including all seting up injection part, annular runner and the branch runner on pouring the mould, injection part one end runs through pouring the mould and feeds through outside the pouring mould, annular runner is seting up and is kept away from running through pouring mould one end at injection part, and annular runner is annular along pouring mould cross-section and distributes, a plurality of branch runners have, and a plurality of branch runners are along annular runner circumference evenly distributed, and branch runner one end intercommunication annular runner other end intercommunication die cavity. Through adopting above-mentioned technical scheme, pour into annular runner with molten insulating liquid through injection portion in, later pour into between sinle silk and the aluminium cover with insulating liquid through many tributary channels, accomplish the pouring of insulating layer. Optionally, a first cooling cavity is formed in the pouring mold, and the first cooling cavity is arranged at the periphery of the forming part. Through adopting above-mentioned technical scheme, the setting in first cooling chamber can accelerate the cooling shaping of aluminium liquid. Optionally, a second cooling cavity is formed in the pouring mold, and the second cooling cavity is formed in the periphery of the mold cavity. Through adopting above-mentioned technical scheme, the setting in second cooling chamber can accelerate the cooling shaping of insulating layer and protective layer. Optionally, pouring mould is provided with wire winding subassembly towards decoiler one