Rolling production line for cable production

Abstract

The invention discloses a rolling production line for cable production, which comprises a mounting table, a plurality of rolling tables fixedly mounted on the mounting table, and upper and lower compression rollers for rolling cables on one side of each rolling table, each compression roller comprises a rubber sleeve, and an electric heating wire for heating an insulating layer is fixedly mounted on the inner side of each compression roller. The vibration generated by the vibrator can be transmitted to the compression roller cylinder along the transmission shaft, the magnetorheological fluid is filled between the compression roller cylinder and the rubber sleeve, and the rubber sleeve is attached to a cable insulation layer during rolling, so that the vibration is transmitted through the magnetorheological fluid, and an insulation layer material is further attached to a battery cell under the vibrating compression roller; when the electromagnet is powered on, electric power is provided for the electric heating wire to generate heat, the heat is prevented from entering the compression roller through the thermal insulation pad, and when the rubber sleeve and the cable insulation sleeve are attached and rolled, the heat is transferred through the electric heating wire generating the heat, so that the situation that the cable insulation sleeve is cooled, and consequently rolling machining is not convenient is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of cable production and processing, and particularly to a roller pressing production line for cable production. Background Art

[0002] Cross-linked polyethylene insulated cable is a kind of cable applicable to fields such as distribution networks. The cross-linked polyethylene insulated cable uses chemical or physical methods to transform the polyethylene molecules of the cable insulation from a linear molecular structure into a main network molecular structure, that is, thermoplastic polyethylene is transformed into thermosetting cross-linked polyethylene, thereby greatly improving its heat resistance and mechanical properties. In the daily use of this kind of cable, the cables used are generally circular or flat cables. During the production process of this type of cable, after the cable extrudes the insulation layer or sheath, it can be extruded through a roller pressing device, and then shaped into the required use shape. At the same time, the outer surface of the cable becomes more flat and smooth, and the roundness is more uniform. During the production process of this cross-linked polyethylene insulated cable, the roller pressing device compacts the insulation layer and the sheath, making the insulation material and the sheath material fit more closely around the cable core, thereby improving the insulation performance and mechanical protection performance of the cable.

[0003] During the roller pressing and conveying process of this cross-linked polyethylene insulated cable, since the insulation sleeve layer of the circular or flat cable is extruded, its outer surface gradually cools during the roller pressing process to form an insulation sleeve, which makes the insulation sleeve not easily be roller pressed and shaped, thus reducing the roller pressing and shaping effect on the insulation sleeve or the sheath. In addition, the hardness of the cooled insulation sleeve increases, which further reduces the fitting degree between the insulation material and the cable core during roller pressing. At the same time, when switching the roller pressing production line for circular or flat cables, it is necessary to stop the machine to replace different roller pressing devices, thereby affecting the roller pressing production efficiency of the cable.

[0004] Therefore, a roller pressing production line for cable production is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a roller pressing production line for cable production to solve the problems proposed in the above background art that the cooled insulation sleeve is not easily roller pressed and shaped, further reducing the fitting degree between the insulation material and the cable core during roller pressing. At the same time, when switching the roller pressing production line for circular or flat cables, it is necessary to stop the machine to replace different roller pressing devices, thereby affecting the roller pressing production efficiency of the cable.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A roller pressing production line for cable production, including an installation table and a plurality of roller pressing tables fixedly installed on the installation table, and two upper and lower pressing rollers for pressing the cable on one side of the roller pressing table. The pressing roller includes a rubber sleeve, and an electric heating wire for heating the insulating layer is fixedly installed inside the pressing roller. A heat insulation pad for heat insulation is fixedly installed inside the electric heating wire. A liquid box of magnetorheological fluid is fixedly installed on one side of each pressing roller. A piston plate is fitted and movably installed inside the liquid box, and a spring member is fixedly installed between the piston plate and the liquid box. The magnetorheological fluid in the liquid box enters between the rubber sleeve and the roller barrel through a through groove provided on the pressing roller. A roller barrel is fixedly installed in the middle of the inside of the pressing roller. A plurality of spring tension rods are fixedly installed equidistantly around the inside of the roller barrel, and one end of each spring tension rod is fixedly connected to the heat insulation pad inside the rubber sleeve. Electromagnets that generate magnetism when energized are fitted and installed between the spring tension rods, and the electromagnets are fixedly connected to the roller barrel; A differential is fixedly installed on one side of each roller pressing table, and a servo motor two for providing power is fixedly installed on one side of the differential. A transmission shaft is fixedly installed in the middle of the inside of each roller barrel, and a vibrator for generating vibration is fixedly installed at one end of the transmission shaft. A transmission gear is fixedly installed on one side of the transmission shaft. A transmission toothed belt for power transmission is nested on each transmission gear, and the transmission toothed belt is in transmission connection with a transmission gear provided on the other side of the differential.

[0007] In the above solution, preferably: the tension coefficients of the plurality of spring tension rods fixedly installed equidistantly around the inside of the roller barrel are set to increase from both sides to the middle, and the tension of the plurality of spring tension rods is greater than the elastic force of the spring member in the initial state.

[0008] In the above solution, preferably: a supporting leg for support is fixedly installed above one side of the installation table, a powder coating box for talcum powder is fixedly installed above the supporting leg, through openings are provided on both sides of the powder coating box, and brushes are provided on the openings.

[0009] In the above solution, preferably: a stirring rod is fitted and movably installed inside the powder coating box, conveying plates for conveying talcum powder to the middle are symmetrically installed on the stirring rod, and a servo motor one for driving the stirring rod to rotate is fixedly installed on one side of the powder coating box.

[0010] In the above solution, preferably: a differential table for fixing the differential is fixedly installed on one side of the roller pressing table, a chute for facilitating the lifting and moving of the upper pressing roller is provided through one side of the roller pressing table, a fixed shaft sleeve is fixedly installed below the inside of the chute, and the transmission shaft in the middle of the lower pressing roller penetrates through the inside of the fixed shaft sleeve.

[0011] In the above solution, preferably: Electric push cylinders are fixedly installed above the rolling table, and electric push rods for adjusting the lifting movement of the upper pressure roller are fitted and movably installed inside the electric push cylinders. Shaft sleeves are fixedly installed below the electric push rods, and the transmission shafts in the middle of the upper pressure roller penetrate through the inside of the shaft sleeves.

[0012] In the above solution, preferably: A fixed table is fixedly installed on one side of the rolling table, and the fixed table is nested on the outer side of the transmission shaft in the middle of the lower pressure roller. A tensioner is fixed above the fixed table, and a spring rod is fitted and movably installed on one side of the tensioner. A tension pulley for keeping the transmission toothed belt in stable transmission when the upper pressure roller descends is fitted and movably installed on one side of the spring rod.

[0013] In the above solution, preferably: Sealing covers for protection are fixedly installed on one side of the rolling table, and fitting rods are fixedly installed below the rolling table. An installation plate is fixedly installed above the installation table, and the rolling table is connected and fixedly installed on the installation table through the fitting rods below.

[0014] The present invention provides a rolling production line for cable production, having the following technical key points and beneficial effects: 1. In the present invention, by designing devices such as rubber sleeves, electric heating wires, and electromagnets, the vibration generated by the vibrator will be transmitted along the transmission shaft to the pressure roller cylinder. Since magnetorheological fluid is filled between the pressure roller cylinder and the rubber sleeve, and the rubber sleeve is in mutual contact with the cable insulating layer during rolling, the vibration is conducted through the magnetorheological fluid, so that the insulating layer material is further in contact with the core under the vibrating pressure roller. Secondly, when the electromagnet is powered on, electric power is provided for the electric heating wire to generate heat, and the heat insulation pad is used to prevent the heat from entering the inside of the pressure roller. When the rubber sleeve is in contact and rolling with the cable insulating sleeve, the heat is transferred by the electric heating wire that generates heat to prevent the cable insulating sleeve from cooling and being inconvenient for rolling processing.

[0015] 2. In the present invention, by designing devices such as spring pull rods, liquid boxes, and electromagnets, before rolling the flat cable in the initial state, the electromagnet is powered on to generate magnetism, so that the magnetorheological fluid profile between the rubber sleeve and the pressure roller cylinder is transformed into a state similar to a solid state to shape the rubber sleeve on the pressure roller and ensure that the magnetorheological fluid maintains a stable rolling form required for the flat cable during rolling. Before rolling the round cable, the piston plate is used to push out the magnetorheological fluid in the liquid box. Since the tension coefficient of the spring pull rods is set to increase from both sides to the middle, the lengths of the spring pull rods extending from both sides decrease towards the middle. At the same time, under the filling of the magnetorheological fluid, the rubber sleeve becomes arc-shaped to ensure that the magnetorheological fluid maintains a stable rolling form required for the round cable during rolling, which is convenient for the rolling production of flat and round cable insulating sleeves.

[0016] 3. The present invention designs devices such as a powder coating box, a stirring rod, and a servo motor 1. The servo motor 1 drives the stirring rod to rotate. The symmetrically installed conveying plates continuously convey the talcum powder stored in the powder coating box to the middle area as the stirring rod rotates. When the cable insulating sleeve passes through the talcum powder in the middle area, the surface of the cable insulating sleeve is covered with talcum powder to prevent the subsequent cable insulating sleeve from sticking to the pressure roller during rolling. When the cable passes through the through openings designed on both sides of the powder coating box, a brush on one side prevents the talcum powder in the powder coating box from falling out, and a brush on the other side brushes off the excess talcum powder on the cable insulating sleeve to ensure that a uniform layer of talcum powder covers the surface of the cable insulating sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the powder coating box in the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the sealing cover in the present invention.

[0020] Figure 4 It is a schematic diagram of the split structure of the pressure roller, differential, and rolling table in the present invention.

[0021] Figure 5 It is a schematic diagram of the split structure of the fixed bushing, bushing, and transmission shaft in the present invention.

[0022] Figure 6 It is a schematic diagram of the split structure of the liquid box and the pressure roller in the present invention.

[0023] Figure 7 It is a schematic diagram of the partial structure of the through groove in the present invention.

[0024] Figure 8 It is a schematic diagram of the internal structure of the pressure roller in the present invention.

[0025] Figure 9 It is a schematic diagram of the internal structure of the pressure roller cylinder in the present invention.

[0026] Figure 10 It is a schematic diagram of the plane structure cross-section of the rubber sleeve in the present invention.

[0027] Figure 11 It is a schematic diagram of the arc shape of the pressure roller in the present invention.

[0028] Figure 12 It is a schematic diagram of the internal structure of the arc shape of the pressure roller in the present invention.

[0029] In the figure: 1. Installation platform; 101. Installation plate; 2. Support foot; 3. First servo motor; 4. Powder coating box; 401. Stirring rod; 5. Rolling table; 501. Differential table; 502. Fixed bushing; 6. Sealing cover; 7. Electric push cylinder; 701. Electric push rod; 702. Bushing; 8. Press roller; 801. Liquid box; 802. Piston plate; 803. Spring member; 804. Through groove; 805. Spring pull rod; 806. Press roller cylinder; 807. Electromagnet; 808. Rubber sleeve; 809. Electric heating wire; 810. Heat insulation pad; 9. Differential; 10. Second servo motor; 11. Fixed table; 12. Tensioner; 1201. Tensioning wheel; 13. Vibrator; 14. Driving gear; 15. Driving toothed belt; 16. Transmission shaft. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1 to 12 , the present invention provides a technical solution for a rolling production line for cable production: A rolling production line for cable production includes an installation platform 1 and a plurality of rolling tables 5 fixedly installed on the installation platform 1, and two upper and lower press rollers 8 for rolling cables on one side of the rolling table 5. The press roller 8 includes a rubber sleeve 808, and an electric heating wire 809 for heating the insulating layer is fixedly installed inside the press roller 8. An insulating pad 810 for heat insulation is fixedly installed inside the electric heating wire 809. A liquid box 801 of magnetorheological fluid is fixedly installed on one side of each press roller 8. A piston plate 802 is fitted and movably installed inside the liquid box 801, and a spring member 803 is fixedly installed between the piston plate 802 and the liquid box 801. The magnetorheological fluid in the liquid box 801 enters between the rubber sleeve 808 and the press roller cylinder 806 through the through groove 804 provided on the press roller 8. A press roller cylinder 806 is fixedly installed in the middle of the inside of the press roller 8. A plurality of spring pull rods 805 are fixedly installed equidistantly around the inside of the press roller cylinder 806, and one end of each spring pull rod 805 is fixedly connected to the heat insulation pad 810 inside the rubber sleeve 808. An electromagnet 807 that generates magnetism when energized is fitted and installed between the spring pull rods 805, and the electromagnet 807 is fixedly connected to the press roller cylinder 806; On one side of the rolling table 5, a differential 9 is fixedly installed, and on one side of the differential 9, a servo motor II 10 for providing power is fixedly installed. In the middle of the internal part of the pressing roller cylinder 806, a transmission shaft 16 is fixedly installed, and at one end of the transmission shaft 16, a vibrator 13 for generating vibration is fixedly installed. On one side of the transmission shaft 16, a transmission gear 14 is fixedly installed, and on the transmission gear 14, a transmission belt 15 for power transmission is nestedly installed, and the transmission belt 15 is in transmission connection with the transmission gear 14 provided on the other side of the differential 9.

[0032] As an embodiment of the present invention, as Figures 2 to 12 shown, the tensile strength coefficients of a plurality of spring pull rods 805 fixedly installed equidistantly around the inner side of the pressing roller cylinder 806 increase from both sides to the middle, and the tensile force of the plurality of spring pull rods 805 is greater than the elastic force of the spring member 803 in the initial state; During operation, when the rolling production line is running, the servo motor II 10 is started, and the power output by it is transmitted to the differential 9. Through the transmission gears 14 on the differential 9 and the transmission shaft 16, and the transmission belt 15 nested on the transmission gear 14, the power is transmitted to the transmission shaft 16 in the middle of the pressing roller cylinder 806, and then the transmission shaft 16 drives the pressing roller 8 to perform rolling rotation operation through the pressing roller cylinder 806. At the same time, the vibrator 13 installed at one end of the transmission shaft 16 will also generate vibration synchronously. The high-frequency vibration generated by the vibrator 13 will be transmitted along the transmission shaft 16 to the pressing roller cylinder 806. Since a magnetorheological fluid is filled between the pressing roller cylinder 806 and the rubber sleeve 808, and when rolling the cable insulation layer, the electromagnet 807 is energized to generate magnetic attraction, so that the viscosity of the magnetorheological fluid increases sharply to change from a liquid state to a state similar to a solid state, and the rubber sleeve 808 fits with the cable insulation layer during rolling. Furthermore, the vibration is transmitted through the conduction of the magnetorheological fluid, so that the insulation layer material is further adhered to the electric core under the vibrating pressing roller 8. Secondly, when the electromagnet 807 is energized, electric power is provided to the heating wire 809 to generate heat, and the heat insulation pad 810 is used to prevent the heat from entering the inside of the pressing roller 8. When the rubber sleeve 808 fits and rolls with the cable insulation sleeve, the heat is transmitted through the heating wire 809 that generates heat to prevent the cable insulation sleeve from cooling and being inconvenient for rolling processing; When the flat cable is ready to be rolled in the initial state, the multiple spring pull rods 805 are pulled. At this time, the pulling force of the multiple spring pull rods 805 is greater than the elastic force of the spring member 803. At the same time, under the filling of the magnetorheological fluid, the rubber sleeve 808 is made into a flat arc shape, so that the magnetorheological fluid between the rubber sleeve 808 and the pressing roller 806 is squeezed from the through groove 804 into the liquid box 801 when the electromagnet 807 is not energized to generate magnetism. At this time, by energizing the electromagnet 807 and generating magnetism, the magnetorheological fluid profile between the rubber sleeve 808 and the pressing roller 806 is similar to a solid state to shape the rubber sleeve 808 on the pressing roller 8, so as to ensure that the magnetorheological fluid maintains a stable rolling shape required for the flat cable during the rolling process; When the round cable is to be rolled, the upper and lower rollers 8 are driven to rotate so that the magnetorheological fluid and the spring pull rod 805 in the roller 8 generate centrifugal force. At this time, the pulling force of the multiple spring pull rods 805 is less than the superposition force of the elastic force of the spring member 803 and the centrifugal force, so that the piston plate 802 pushes out the magnetorheological fluid in the liquid box 801, so that the magnetorheological fluid in the liquid box 801 is filled into the rubber sleeve 808 and the roller 806 through the through groove 804. Since the tension coefficient of the spring pull rod 805 is set to increase from both sides to the middle, the length of the spring pull rods 805 on both sides decreases toward the middle. At the same time, under the filling of the magnetorheological fluid, the rubber sleeve 808 is made into an arc shape. As above, at this time, by energizing the electromagnet 807 and generating magnetism, the magnetorheological fluid maintains the stable rolling shape required for the round cable during the rolling process, so as to facilitate the rolling production of flat and round cable insulation sleeves.

[0033] As an embodiment of the present invention, Figures 1 to 2 As shown, a support foot 2 for support is fixedly installed on the upper side of the mounting platform 1, a powder coating box 4 filled with talcum powder is fixedly installed on the upper side of the support foot 2, through openings are provided on both sides of the powder coating box 4, and brushes are provided on the openings, a stirring rod 401 is movably installed on the inner side of the powder coating box 4, and a conveying plate for conveying talcum powder to the middle is symmetrically installed on the stirring rod 401, and a servo motor 3 for driving the stirring rod 401 to rotate is fixedly installed on one side of the powder coating box 4; During operation, the powder coating box 4 is fixedly installed on the mounting plate 101 of the mounting table 1 through the supporting feet 2. Before the cable enters the rolling process, the stirring rod 401 is driven to rotate by the first servo motor 3. The symmetrically installed conveying plates continuously convey the talcum powder stored in the powder coating box 4 to the middle area as the stirring rod 401 rotates. When the cable insulating sleeve passes through the talcum powder in the middle area, the talcum powder covers the surface of the cable insulating sleeve to prevent the subsequent cable insulating sleeve from adhering to the pressure roller 8 during rolling. When the cable passes through the through openings designed on both sides of the powder coating box 4, the talcum powder in the powder coating box 4 is prevented from falling out by the brush on one side, and the excess talcum powder on the cable insulating sleeve is brushed off by the brush on the other side to ensure that a layer of talcum powder is evenly covered on the surface of the cable insulating sleeve.

[0034] As an embodiment of the present invention, as Figures 2 to 5 shown, a differential table 501 for fixing the differential 9 is fixedly installed on one side of the rolling table 5. A chute for facilitating the lifting movement of the upper pressure roller 8 is provided through one side of the rolling table 5. A fixed bushing 502 is fixedly installed below the inner part of the chute, and the transmission shaft 16 in the middle of the lower pressure roller 8 penetrates through the inner part of the fixed bushing 502. Electric push cylinders 7 are fixedly installed above the rolling table 5, and electric push rods 701 for adjusting the lifting movement of the upper pressure roller 8 are fitted and movably installed inside the electric push cylinders 7. Shaft sleeves 702 are fixedly installed below the electric push rods 701, and the transmission shaft 16 in the middle of the upper pressure roller 8 penetrates through the inner part of the shaft sleeve 702; During operation, the differential 9 is installed and used through the differential table 501, and the transmission shaft 16 in the middle of the lower pressure roller 8 is nested through the fixed bushing 502 to maintain the stability of the lower pressure roller 8 and the transmission shaft 16 during operation. When the pressure during rolling needs to be adjusted, the electric push rod 701 is driven to extend downward by the electric push cylinder 7, and the shaft sleeve 702 presses the transmission shaft 16 in the middle of the upper pressure roller 8 to move downward, so that the upper pressure roller 8 descends, and it rolls the cable insulating sleeve with the lower pressure roller 8, thereby increasing the pressure of the pressure roller 8 on the cable insulating sleeve.

[0035] As an embodiment of the present invention, as Figures 1 to 5 shown, a fixed table 11 is fixedly installed on one side of the rolling table 5, and the fixed table 11 is nested outside the transmission shaft 16 in the middle of the lower pressure roller 8. A tensioner 12 is fixed above the fixed table 11, and a tensioning wheel 1201 for keeping the transmission belt 15 running stably when the upper pressure roller 8 descends is fitted and movably installed on one side of the tensioner 12. Sealing covers 6 for protection are fixedly installed on one side of the rolling table 5, and fitting rods are fixedly installed below the rolling table 5. A mounting plate 101 is fixedly installed above the mounting table 1, and the rolling table 5 is connected and fixedly installed on the mounting table 1 through the fitting rods below; During operation, the rolling table 5 and the supporting feet 2 are installed and used through the mounting plate 101 on the mounting table 1, and the safety during the operation of the rolling table 5 is improved by the sealing cover 6. When the upper pressing roller 8 descends, in order to ensure the stable transmission of the transmission belt 15, the spring rod movably installed on one side of the tensioner 12 will extend under the action of elastic potential energy, pushing the tensioning wheel 1201 connected thereto to approach the transmission belt 15 and applying an appropriate pressure, so as to effectively prevent the transmission belt 15 from becoming loose or falling off due to the lifting of the upper pressing roller 8. Secondly, the fixed table 11 nests and supports the transmission shaft 16 on the lower pressing roller 8 to maintain the stability of the lower pressing roller 8 during operation.

[0036] Working principle: During the working process, first, the rolling table 5 and the supporting feet 2 are installed on the mounting plate 101 of the mounting table 1, then the differential table 501 is used to install the differential 9, and the transmission shaft 16 in the middle of the lower pressing roller 8 is nested through the fixed bushing 502 to ensure the stability of the lower pressing roller 8 and the transmission shaft 16 during operation. When the rolling pressure needs to be adjusted, the electric push cylinder 7 will drive the electric push rod 701 to extend downward, pressing the transmission shaft 16 in the middle of the upper pressing roller 8 to make it descend, and roll the cable insulating sleeve together with the lower pressing roller 8, thereby increasing the pressure of the pressing roller 8 on the cable insulating sleeve. In order to ensure the stable transmission of the transmission belt 15, the spring rod on one side of the tensioner 12 will extend under the action of elastic potential energy, pushing the tensioning wheel 1201 to approach the transmission belt 15 and applying an appropriate pressure, effectively preventing the transmission belt 15 from becoming loose or falling off due to the lifting of the pressing roller 8. In addition, the fixed table 11 nests and supports the transmission shaft 16 on the lower pressing roller 8 to maintain its stability during operation; Before the cable is conveyed to the rolling process, the powder coating box 4 is fixedly installed on the mounting plate 101 of the mounting table 1 through the supporting feet 2. The servo motor 3 drives the stirring rod 401 to rotate, and the symmetrically installed conveying plates will convey the talcum powder stored in the powder coating box 4 to the middle area. When the cable insulating sleeve passes through the talcum powder in the middle area, the talcum powder will cover the surface of the cable insulating sleeve to prevent it from adhering to the pressing roller 8 during rolling. When the cable passes through the through openings on both sides of the powder coating box 4, the brush on one side prevents the talcum powder from falling out, and the brush on the other side brushes off the excess talcum powder on the cable insulating sleeve; When the roller press production line is in operation, the servo motor two 10 starts, and its power is transmitted to the differential 9. Then, through the transmission gear 14 and the transmission belt 15 on the transmission shaft 16, the power is transmitted to the transmission shaft 16 in the middle of the roller 806 inside the pressure roller, so that the transmission shaft 16 drives the pressure roller 8 to rotate for roller pressing through the pressure roller 806. At the same time, the vibrator 13 installed at one end of the transmission shaft 16 also generates vibrations, and the vibrations are transmitted to the pressure roller 806 through the transmission shaft 16. When roller pressing the cable insulation layer, the electromagnet 807 is energized to generate magnetic attraction, causing the viscosity of the magnetorheological fluid to increase sharply and change from a liquid state to a state similar to a solid state. The rubber sleeve 808 fits with the cable insulation layer during roller pressing, and the vibrations are conducted through the magnetorheological fluid, further improving the adhesion between the insulation layer material and the battery core. In addition, when the electromagnet 807 is energized, the heating wire 809 provides electricity to generate heat, and the heat insulation pad 810 prevents the heat from entering the inside of the pressure roller 8. When the rubber sleeve 808 fits with the cable insulation sleeve for roller pressing, the heat generated by the heating wire 809 is transferred to improve the roller pressing effect; Before roller pressing the flat cable in the initial state, the pulling force of the multiple spring pull rods 805 is greater than the elastic force of the spring member 803, so that the magnetorheological fluid between the rubber sleeve 808 and the pressure roller 806 is extruded into the liquid box 801 from the through groove 804 when the electromagnet 807 is not energized. When the electromagnet 807 is energized and generates magnetism, the magnetorheological fluid profile between the rubber sleeve 808 and the pressure roller 806 changes to a state similar to a solid state, shaping the rubber sleeve 808 on the pressure roller 8 to ensure that the magnetorheological fluid maintains a stable roller pressing form required for the flat cable during roller pressing. When roller pressing the round cable, the upper and lower pressure rollers 8 are driven to rotate, causing the magnetorheological fluid and the spring pull rods 805 in the pressure roller 8 to generate centrifugal force. At this time, the pulling force of the spring pull rods 805 is less than the combined force of the elastic force of the spring member 803 and the centrifugal force, and the piston plate 802 pushes out the magnetorheological fluid in the liquid box 801 and fills it between the rubber sleeve 808 and the pressure roller 806 through the through groove 804. Since the pulling force coefficient of the spring pull rods 805 is set to increase from both sides to the middle, the extended lengths of the spring pull rods 805 on both sides decrease towards the middle. At the same time, under the filling of the magnetorheological fluid, the rubber sleeve 808 becomes arc-shaped, ensuring that the magnetorheological fluid maintains a stable roller pressing form required for the round cable during roller pressing, facilitating the roller pressing production and use of flat and round cable insulation sleeves.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling production line for cable production, comprising a mounting platform (1) and a plurality of rolling platforms (5) fixedly mounted on the mounting platform (1), and two upper and lower rollers (8) for rolling cables on one side of the rolling platform (5), characterized in that: The pressing roller (8) comprises a rubber sleeve (808), and a heating wire (809) for heating the insulating layer is fixedly installed on the inner side of the pressing roller (8), and a temperature insulation pad (810) for heat insulation is fixedly installed on the inner side of the heating wire (809). A liquid box (801) for magnetorheological fluid is fixedly installed on one side of the pressing roller (8), and a piston plate (802) is movably installed inside the liquid box (801), and a spring member (803) is fixedly installed between the piston plate (802) and the liquid box (801). The magnetorheological fluid in the liquid box (801) is heated by the pressing roller (808). 8) is provided with a through groove (804) extending between the rubber sleeve (808) and the pressure roller (806); the pressure roller (806) is fixedly installed in the middle of the inner part of the pressure roller (8); a plurality of spring pull rods (805) are fixedly installed around the inner side of the pressure roller (806) at equal intervals, and one end of the spring pull rod (805) is fixedly connected to the thermal insulation pad (810) on the inner side of the rubber sleeve (808); an electromagnet (807) that generates magnetism when energized is installed between the spring pull rods (805), and the electromagnet (807) is fixedly connected to the pressure roller (806); A differential (9) is fixedly mounted on one side of the roller pressing platform (5), and a servo motor (10) for providing power is fixedly mounted on one side of the differential (9). A transmission shaft (16) is fixedly mounted in the middle of the pressure roller (806), and a vibrator (13) for generating vibration is fixedly mounted on one end of the transmission shaft (16). A transmission gear (14) is fixedly mounted on one side of the transmission shaft (16), and a transmission toothed belt (15) for power transmission is nested on the transmission gear (14), and the transmission toothed belt (15) is transmission-connected to the transmission gear (14) provided on the other side of the differential (9).

2. A rolling production line for cable production according to claim 1, characterized in that: The tension coefficients of the multiple spring pull rods (805) fixedly installed and equidistantly surrounding the inner side of the pressing roller (806) are set to increase from both sides to the middle, and the tension of the multiple spring pull rods (805) is greater than the elastic force of the spring member (803) in the initial state.

3. A rolling production line for cable production according to claim 1, characterized in that: A support foot (2) for support is fixedly mounted above one side of the mounting platform (1), a talcum powder coating box (4) is fixedly mounted above the support foot (2), and through openings are provided on both sides of the powder coating box (4), and brushes are provided on the openings.

4. A rolling production line for cable production according to claim 3, characterized in that: A stirring rod (401) is movably mounted on the inner side of the powder coating box (4), and a conveying plate for conveying talcum powder to the middle is symmetrically mounted on the stirring rod (401). A servo motor (3) for driving the stirring rod (401) to rotate is fixedly mounted on one side of the powder coating box (4).

5. The cable production line according to claim 1, characterized in that: A differential platform (501) for fixing the differential (9) is fixedly mounted on one side of the roller pressing platform (5), and a slide groove is provided through one side of the roller pressing platform (5) to facilitate the lifting and lowering movement of the upper pressure roller (8), a fixed shaft sleeve (502) is fixedly mounted below the interior of the slide groove, and a transmission shaft (16) in the middle of the lower pressure roller (8) is provided through the interior of the fixed shaft sleeve (502).

6. A rolling production line for cable production according to claim 5, characterized in that: An electric push cylinder (7) is fixedly mounted above the roller pressing platform (5), and an electric push rod (701) for adjusting the lifting movement of the upper pressing roller (8) is movably mounted inside the electric push cylinder (7), and a shaft sleeve (702) is fixedly mounted below the electric push rod (701), and a transmission shaft (16) in the middle of the upper pressing roller (8) passes through the shaft sleeve (702).

7. The cable production roller production line according to claim 1, characterized in that: A fixed platform (11) is fixedly mounted on one side of the roller pressing platform (5), and the fixed platform (11) is nested and mounted on the outside of the transmission shaft (16) in the middle of the lower pressure roller (8). A tensioner (12) is fixed above the fixed platform (11), and a spring rod is movably mounted on one side of the tensioner (12), and a tensioning wheel (1201) is movably mounted on one side of the spring rod for maintaining stable transmission of the transmission toothed belt (15) when the upper pressure roller (8) descends.

8. The cable production roller production line according to claim 1, characterized in that: A sealing cover (6) for protection is fixedly mounted on one side of the rolling platform (5), and an interlocking rod is fixedly mounted below the rolling platform (5). A mounting plate (101) is fixedly mounted above the mounting platform (1), and the rolling platform (5) is connected to the mounting plate (101) via the interlocking rod below and is fixedly mounted on the mounting platform (1).

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