Cable drawing and annealing device

Abstract

The invention discloses a cable wire drawing and annealing device, and relates to the technical field of cable production equipment, the cable wire drawing and annealing device comprises a bottom plate, and the bottom plate is provided with an expanding and shrinking assembly, a preheating assembly, a wire pressing assembly, an annealing assembly and a cooling tank; a servo motor is started to drive a screw rod to rotate, so that a threaded block is driven to move upwards, an adjusting plate is driven to move upwards, and a plurality of steel wires are driven to be far away from each other through transmission and pulling of a sliding plate, so that expansion of the steel wires wound on the sliding plate is achieved, the tension of the steel wires is changed, and subsequent wire drawing of the steel wires is facilitated; nitrogen is injected through the second guide wheel, and the nitrogen is injected into the through groove through the gas transmission block and the spray head, so that oxidation of the steel wire during annealing is effectively avoided. The problems that in the prior art, copper wire oxidation is likely to be caused by annealing directly through a spiral heating pipe, the electric conductivity and the ductility of copper wires are affected, and the response is slow and the synchronism is poor due to the fact that multiple gears and racks are adopted for combined transmission are solved.

Description

Technical Field

[0001] The invention relates to the technical field of cable production equipment, in particular to a cable wire drawing annealing device. Background Art

[0002] Cable annealing equipment is a core equipment in the manufacturing process of wires and cables. It is mainly used to heat treat metal conductors. By precisely controlling the heating and cooling process, it eliminates internal stress in the material, restores plasticity, and improves conductivity and flexibility.

[0003] The Chinese invention with authorization announcement number CN115415346B proposes a copper wire drawing annealing device for cable production: it includes a pretreatment device and a base frame, the pretreatment device is located on one side of the base frame and is connected to the base frame, the pretreatment device includes an expansion and contraction component: it also includes: a preheating component connected to the base frame, the copper wire is preheated by the preheating component, so that the internal stress between the copper wires is reduced, so as to facilitate subsequent wire drawing, and at the same time, by changing the distance that the wire pressing wheel moves downward, the pressure on the copper wire is controlled to facilitate the manufacture of copper wires of different diameters. The drawn copper wire can pass through the heated wiring tube and enter the second reversing wheel. At this time, the copper wire located in the heated wiring tube can be heated by the spiral heating tube, so as to reach the rated annealing temperature of the copper wire. The copper wire that reaches the rated annealing temperature can enter the cooling tank through the reversing action of the second reversing wheel. Under the action of the coolant, the copper wire can complete annealing.

[0004] However, the existing technology still has shortcomings:

[0005] 1. The annealing temperature of the drawn copper wire is generally 500-550 degrees Celsius. Direct annealing through a spiral heating tube can easily cause oxidation of the copper wire, affecting the conductivity and elongation of the copper wire, and thus affecting the quality of the cable.

[0006] 2. The expansion and contraction components adopt multiple gears and racks for joint transmission, which has a slow response. Moreover, the breakage of a tooth will affect the overall expansion and contraction effect, which may easily cause large cumulative errors and poor synchronization. Summary of the Invention

[0007] The present invention aims to address at least one of the technical problems existing in the prior art. To this end, the present invention provides a cable wire drawing annealing device that addresses the prior art problems of using multiple gears and racks for combined transmission, resulting in slow response and poor synchronization, and direct annealing through a spiral heating tube, which can easily cause copper wire oxidation and affect its conductivity and ductility.

[0008] To achieve the above-mentioned objectives, the present invention proposes a cable wire drawing annealing device, comprising a base plate, on which an expansion and contraction component, a preheating component, a wire pressing component, an annealing component, and a cooling groove are provided; a mounting hole is provided on the base plate, a servo motor is fixedly provided on the base plate, and a screw is fixedly provided on the output shaft of the servo motor, and the screw is provided in the mounting hole, and the expansion and contraction component comprises a supporting surface, which is fixedly provided on the base plate through a plurality of supporting columns, and the end of the screw is rotatably connected to the supporting surface, and a plurality of expansion blocks are slidably provided on the supporting surface, and the expansion block is used to expand the steel wire; a plurality of adjustment grooves corresponding to the expansion blocks are provided on the supporting surface, and a slider is slidably provided in the adjusting groove, and the slider is fixedly connected to the expansion block, a threaded block is threaded on the screw, and a plurality of adjustment plates are rotatably provided on the threaded block, and a linkage plate is rotatably provided between the adjustment plate and the slider.

[0009] As a further solution of the present invention: a first guide wheel and a second guide wheel are fixedly provided on the bottom plate.

[0010] As a further solution of the present invention: the first guide wheel 2 is fixedly arranged on a side close to the mounting hole.

[0011] As a further solution of the present invention: the preheating assembly includes a positioning ring, which is fixedly arranged on the side of the bottom plate close to the expansion and contraction assembly. The preheating assembly is provided with an arc-shaped barrel groove, and a preheating ring is rotatably arranged in the arc-shaped barrel groove. An electric heating iron is fixedly arranged in the preheating ring.

[0012] As a further solution of the present invention: a crescent plate is fixedly provided in the positioning ring, a movable rod is rotatably provided on the crescent plate, a pressure block is fixedly provided at the end of the movable rod, and a pressure spring is fixedly provided between the movable rod and the crescent plate.

[0013] As a further solution of the present invention: the wire pressing assembly includes a load-bearing box, which is fixedly arranged on the part of the bottom plate close to the preheating assembly, and a limiting groove is provided on the load-bearing box, and a wire pressing wheel is slidably provided on the limiting groove. A pair of limiting rotating wheels are fixedly provided on the load-bearing box, and the limiting rotating wheels are symmetrically arranged on both sides of the limiting groove. An electric push rod is fixedly provided on the load-bearing box, and a connecting rod is fixedly provided on the output shaft of the electric push rod. The connecting rod is slidably provided in the limiting groove, and the connecting rod is fixedly connected to the wire pressing wheel.

[0014] As a further solution of the present invention: the annealing assembly includes an annealing shell, which is fixedly arranged on the part of the bottom plate close to the wire pressing assembly. A through groove is provided in the annealing shell, and graphite fiber packings are symmetrically fixed on both sides of the through groove. A heating plate is fixedly installed on the bottom of the bottom plate.

[0015] As a further solution of the present invention: a gas delivery block is fixedly arranged in the through groove, a plurality of nozzles are fixedly arranged below the gas delivery block, and a gas delivery hose is fixedly arranged above the gas delivery block.

[0016] As a further solution of the present invention: the gas delivery hose extends out of the annealing shell and is connected to an external nitrogen supply device.

[0017] As a further solution of the present invention: the second guide wheel is fixedly arranged on the bottom plate, close to one side of the annealing assembly.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. By setting up the expansion and contraction components, starting the servo motor, driving the screw to rotate, thereby driving the thread block to move upward, driving the adjustment plate to move upward, through the transmission, pulling along the slide, thereby driving several to move away from each other, realizing the expansion of the wound steel wire, changing the tension of the steel wire, and facilitating the subsequent wire drawing.

[0020] 2. By setting an annealing assembly, the annealing assembly includes an annealing shell, which is fixedly arranged on the part of the bottom plate close to the wire pressing assembly. A through groove is arranged in the annealing shell, and graphite fiber packings are symmetrically fixed on both sides of the through groove. The steel wire passes through the through groove. A heating plate is fixedly installed at the bottom of the bottom plate. The heating plate is started to make the steel wire in the through groove reach the annealing temperature. A gas block is fixedly arranged in the through groove, and a plurality of nozzles are fixedly arranged below the gas block. A gas hose is fixedly arranged above the gas block. The gas hose extends out of the annealing shell and is used to connect to an external nitrogen supply device. Nitrogen is injected through the second guide wheel, and the nitrogen is injected into the through groove through the gas block and the nozzle, thereby effectively avoiding oxidation of the steel wire during annealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 It is a three-dimensional structural diagram of the present invention;

[0023] Figure 3 A three-dimensional structural diagram of the expansion and contraction assembly of the present invention;

[0024] Figure 4 An exploded schematic diagram of the expansion and contraction assembly of the present invention;

[0025] Figure 5 It is a three-dimensional structural diagram of the preheating assembly of the present invention;

[0026] Figure 6 It is a three-dimensional structural diagram of the wire pressing assembly of the present invention;

[0027] Figure 7 Schematic diagram of the explosion of the annealing assembly of the present invention.

[0028] In the figure: 1, bottom plate; 2, first guide wheel; 3, expansion and contraction assembly; 301, support surface; 302, adjustment groove; 303, slider; 304, expansion block; 305, linkage plate; 306, adjustment plate; 307, threaded block; 4, preheating assembly; 401, positioning ring; 402, crescent plate; 403, preheating ring; 404, arc-shaped through groove; 405, pressure block; 406, movable rod; 407, pressure spring; 5, wire pressing assembly; 501, bearing Heavy box; 502, limit wheel; 503, limit groove; 504, connecting rod; 505, wire pressing wheel; 6, annealing assembly; 601, annealing shell; 602, through groove; 603, graphite fiber packing; 604, gas supply block; 605, heating plate; 606, nozzle; 607, gas supply hose; 7, second guide wheel; 8, cooling groove; 9, steel wire; 10, mounting hole; 11, support column; 12, electric push rod; 13, servo motor; 14, screw. DETAILED DESCRIPTION

[0029] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figure 1-7 As shown, a cable wire drawing annealing device includes a base plate 1, on which an expansion and contraction component 3, a preheating component 4, a wire pressing component 5, an annealing component 6, and a cooling tank 8 are provided; a steel wire 9 is sequentially introduced into the expansion and contraction component 3, the preheating component 4, the wire pressing component 5, and the annealing component 6, and finally pulled out from the cooling tank 8 to complete the wire drawing annealing operation of the steel wire 9. A first guide wheel 2 and a second guide wheel 7 are fixedly provided on the base plate 1 for guiding the steel wire 9.

[0031] The base plate 1 is provided with a mounting hole 10, and the first guide wheel 2 is fixedly arranged on a side close to the mounting hole 10 for introducing the steel wire 9. The expansion and contraction component 3 is arranged on the mounting hole 10, and a servo motor 13 is fixedly arranged on the base plate 1. The output shaft of the servo motor 13 is fixedly provided with a screw 14, and the screw 14 is arranged in the mounting hole 10. The expansion and contraction component 3 includes a support surface 301, and the support surface 301 is fixedly provided on the base plate 1 through a plurality of support columns 11. The end of the screw 14 is rotatably connected to the support surface 301. A plurality of expansion blocks 304 are slidably provided on the support surface 301, and the expansion blocks 304 are used to expand the steel wire 9; a plurality of adjustment slots 302 corresponding to the expansion blocks 304 are provided on the support surface 301, and a slider 303 is slidably provided in the adjustment slot 302. The slider 303 is fixedly connected to the expansion block 304, and a threaded block 307 is threaded on the screw 14. A number of adjustment plates 306 are rotatably provided on the threaded block 307, and the number of the adjustment plates 306 corresponds to the number of the sliders 303. A linkage plate 305 is rotatably provided between the adjustment plate 306 and the slider 303; the servo motor 13 is started to drive the screw 14 to rotate, thereby driving the threaded block 307 to move. Taking the upward movement of the threaded block 307 as an example, the upward movement of the threaded block 307 drives the adjustment plate 306 to move upward. Through the transmission of the 305, the 303 is pulled to slide along the 302, thereby driving several 304 to move away from each other, thereby expanding the steel wire 9 wound on the 304, changing the tension of the steel wire 9, and facilitating the subsequent wire drawing of the steel wire 9;

[0032] The preheating assembly 4 includes a positioning ring 401, which is fixedly arranged on the bottom plate 1 on one side close to the expansion and contraction assembly 3. An arc-shaped barrel groove 404 is provided on the preheating assembly 4, and a preheating ring 403 is rotatably arranged in the arc-shaped barrel groove 404. An electric heating iron is fixedly arranged in the preheating ring 403. When in use, the steel wire 9 is passed around the preheating ring 403 and then pulled out from the side of the positioning ring 401 and enters the wire pressing assembly 5. The steel wire 9 is preheated by the preheating ring 403. In order to make the steel wire 9 and the preheating ring 403 contact, better achieve preheating, the positioning ring 401 is fixed with a crescent plate 402, the crescent plate 402 is rotatably provided with a movable rod 406, the end of the movable rod 406 is fixed with a pressure block 405, and a pressure spring 407 is fixedly provided between the movable rod 406 and the crescent plate 402. Through the elastic action of the pressure spring 407, the pressure block 405 is pushed close to the preheating ring 403, thereby pushing the 9 wrapped around the surface of the preheating ring 403 close to the preheating ring 403, thereby achieving preheating of the steel wire 9;

[0033] The wire pressing assembly 5 includes a load-bearing box 501, which is fixedly arranged on the bottom plate 1 near the part of the preheating assembly 4. A limiting groove 503 is provided on the load-bearing box 501, and a wire pressing wheel 505 is slidably provided on the limiting groove 503. A pair of limiting rotating wheels 502 are fixedly provided on the load-bearing box 501, and the limiting rotating wheels 502 are symmetrically arranged on both sides of the limiting groove 503. An electric push rod 12 is fixedly provided on the load-bearing box 501. The output shaft of the push rod 12 is fixedly provided with a connecting rod 504, and the connecting rod 504 is slidably set in the limiting groove 503. The connecting rod 504 is fixedly connected to the wire pressing wheel 505. The steel wire 9 is passed around the limiting rotating wheel 502 and the wire pressing wheel 505 respectively. The electric push rod 12 is started to drive the wire pressing wheel 505 to slide along the limiting groove 503, pressing down the steel wire 9 located between the pair of limiting rotating wheels 502, and pulling the steel wire 9 into a copper wire that meets the standards;

[0034] The annealing assembly 6 includes an annealing shell 601, which is fixedly arranged on the bottom plate 1 near the part of the wire pressing assembly 5. A through groove 602 is provided in the annealing shell 601, and graphite fiber packing 603 is symmetrically fixedly arranged on both sides of the through groove 602. The steel wire 9 passes through the through groove 602. A heating plate 605 is fixedly installed at the bottom of the bottom plate 1. When the heating plate 605 is turned on, the steel wire 9 in the through groove 602 reaches the annealing temperature. A gas supply block 604 is fixedly arranged in the through groove 602, and a plurality of nozzles 606 are fixedly arranged below the gas supply block 604. A gas supply hose 607 is fixedly arranged above the gas supply block 604. The gas supply hose 607 extends out of the annealing shell 601 and is used to connect to an external nitrogen supply device. Nitrogen is injected through the second guide wheel 7. Nitrogen is injected into the through groove 602 through the gas supply block 604 and the nozzle 606, thereby effectively preventing oxidation of the steel wire 9 during annealing.

[0035] The second guide wheel 7 is fixedly arranged on the bottom plate 1, close to one side of the annealing assembly 6. The steel wire 9 pulled out from the annealing assembly 6 passes around the second guide wheel 7 and enters the cooling tank 8. The cooling tank 8 is provided with coolant, thereby completing the annealing of the steel wire 9.

[0036] Working principle:

[0037] During use, the steel wire 9 is sequentially introduced into the expansion and contraction assembly 3, the preheating assembly 4, the wire pressing assembly 5, and the annealing assembly 6, and finally pulled out from the cooling tank 8 to complete the wire drawing annealing operation of the steel wire 9. The servo motor 13 is started to drive the screw 14 to rotate, thereby driving the threaded block 307 to move upward, driving the adjusting plate 306 to move upward, and through the transmission of the 305, pulling the 303 to slide along the 302, thereby driving several 304 to move away from each other, realizing the expansion of the steel wire 9 wound on the 304, changing the tension of the steel wire 9, and facilitating the subsequent wire drawing of the steel wire 9; through the elastic action of the pressure spring 407, the pressing block 405 is pushed close to the preheating ring 4 03, thereby pushing the steel wire 9 wrapped around the surface of the preheating ring 403 close to the preheating ring 403 to achieve preheating of the steel wire 9; starting the electric push rod 12, driving the wire pressing wheel 505, sliding along the limiting groove 503, pressing down the steel wire 9 located between a pair of limiting rotating wheels 502, and pulling the steel wire 9 into a copper wire that meets the standards; injecting nitrogen through the second guide wheel 7, and the nitrogen is injected into the through groove 602 through the gas delivery block 604 and the nozzle 606, thereby effectively avoiding oxidation of the steel wire 9 during annealing; the steel wire 9 pulled out from the annealing assembly 6 bypasses the second guide wheel 7 and enters the cooling tank 8, which is provided with a coolant, thereby completing the annealing of the steel wire 9.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A cable wire drawing annealing device, comprising a base plate (1), wherein the base plate (1) is provided with an expansion and contraction component (3), a preheating component (4), a wire pressing component (5), an annealing component (6), and a cooling tank (8); characterized in that: The base plate (1) is provided with a mounting hole (10), a servo motor (13) is fixedly provided on the base plate (1), an output shaft of the servo motor (13) is fixedly provided with a screw rod (14), the screw rod (14) is arranged in the mounting hole (10), the expansion and contraction assembly (3) comprises a support surface (301), the support surface (301) is fixedly provided on the base plate (1) through a plurality of support columns (11), the end of the screw rod (14) is rotatably connected to the support surface (301), a plurality of expansion blocks (304) are slidably provided on the support surface (301), the expansion blocks (304) is used to expand the steel wire (9); a plurality of adjustment grooves (302) corresponding to the expansion block (304) are provided on the support surface (301), a slider (303) is slidably provided in the adjustment groove (302), the slider (303) is fixedly connected to the expansion block (304), a threaded block (307) is threadedly provided on the screw rod (14), a plurality of adjustment plates (306) are rotatably provided on the threaded block (307), and a linkage plate (305) is rotatably provided between the adjustment plate (306) and the slider (303).

2. A cable drawing annealing device according to claim 1, characterized in that: A first guide wheel (3) and a second guide wheel (7) are fixedly arranged on the bottom plate (1).

3. A cable drawing annealing device according to claim 2, characterized in that: The first guide wheel 2 is fixedly arranged on a side close to the mounting hole (10).

4. A cable drawing annealing device according to claim 1, characterized in that: The preheating assembly (4) comprises a positioning ring (401), the positioning ring (401) being fixedly arranged on a side of the bottom plate (1) close to the expansion and contraction assembly (3), the preheating assembly (4) being provided with an arc-shaped barrel groove (404), a preheating ring (403) being rotatably arranged in the arc-shaped barrel groove (404), and an electric heating iron being fixedly arranged in the preheating ring (403).

5. A cable drawing annealing device according to claim 4, characterized in that: A crescent plate (402) is fixedly provided in the positioning ring (401), a movable rod (406) is rotatably provided on the crescent plate (402), a pressure block (405) is fixedly provided at the end of the movable rod (406), and a pressure spring (407) is fixedly provided between the movable rod (406) and the crescent plate (402).

6. A cable drawing annealing device according to claim 1, characterized in that: The wire pressing assembly (5) comprises a load-bearing box (501), the load-bearing box (501) is fixedly arranged on the bottom plate (1) near the part of the preheating assembly (4), the load-bearing box (501) is provided with a limit groove (503), a wire pressing wheel (505) is slidably arranged on the limit groove (503), a pair of limit rotating wheels (502) are fixedly arranged on the load-bearing box (501), the limit rotating wheels (502) are symmetrically arranged on both sides of the limit groove (503), an electric push rod (12) is fixedly arranged on the load-bearing box (501), the output shaft of the electric push rod (12) is fixedly provided with a connecting rod (504), the connecting rod (504) is slidably arranged in the limit groove (503), and the connecting rod (504) is fixedly connected to the wire pressing wheel (505).

7. A cable drawing annealing device according to claim 1, characterized in that: The annealing assembly (6) comprises an annealing shell (601), which is fixedly arranged on a portion of the bottom plate (1) close to the wire pressing assembly (5), a through groove (602) is provided in the annealing shell (601), graphite fiber packings (603) are symmetrically fixedly arranged on both sides of the through groove (602), and a heating plate (605) is fixedly installed at the bottom of the bottom plate (1).

8. A cable drawing annealing device according to claim 7, characterized in that: A gas delivery block (604) is fixedly arranged in the through groove (602), a plurality of nozzles (606) are fixedly arranged below the gas delivery block (604), and a gas delivery hose (607) is fixedly arranged above the gas delivery block (604).

9. A cable drawing annealing device according to claim 8, characterized in that: The gas delivery hose (607) extends out of the annealing shell (601) and is connected to an external nitrogen supply device.

10. A cable drawing annealing device according to claim 2, characterized in that: The second guide wheel (7) is fixedly arranged on the bottom plate (1) and close to one side of the annealing assembly (6).

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