CN212944703U - Continuous annealing and wire drawing device for metal wire - Google Patents

Abstract

The utility model relates to a wire processing technology field specifically relates to a wire rod continuous annealing wire drawing device, including the riser, the disc wire drawing device, multi-angle formula removes bits device, first elastic traction wheel, annealing device, second elastic traction wheel and leading wheel, disc wire drawing device, first elastic traction wheel, annealing device and second elastic traction wheel set gradually in the riser side along S type route, multi-angle formula removes bits device setting between a plurality of disc wire drawing device, the leading wheel setting is at riser entry and outlet side, under the operating condition, wire rod passes through the entrance side leading wheel and goes out at every disc wire drawing device and by the guide of outlet side leading wheel along S type route wraparound, wire rod bending department by the leading wheel guides, the device simple structure, be convenient for install, and can anneal the wire drawing in succession.

Description

Continuous annealing and wire drawing device for metal wire

Technical Field

The utility model relates to a wire processing technology field specifically relates to a continuous annealing wire drawing device of wire rod.

Background

The conductive materials used in the production of electric wires and cables are mainly copper alloy wires and copper wires. As conductor materials of electric wires for installation and arrangement and low, medium and high voltage cables, copper wires and copper alloy wires are subjected to an annealing process. In the annealing process, often shift the good copper line of wire drawing to next procedure again and anneal, need increased extra device to only rely on the turn to anneal, when being worn and torn along with annealing wheel surface, damping tension when leading to annealing changes and difficult in time discovery easily, and difficult the change when changing, and along with the diameter of steel wire is different, needs special annealing wheel, and the cost is higher, so need an annealing wire drawing device that can improve application range and be convenient for to change the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a metal wire continuous annealing wire drawing device is provided, this technical scheme has solved metal wire's annealing wire drawing problem.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model provides a continuous annealing wire drawing device of wire rod, including the riser, the disc wire drawing device, the bits device is removed to multi-angle formula, first elastic traction wheel, annealing device, second elastic traction wheel and leading wheel, disc wire drawing device, first elastic traction wheel, annealing device and second elastic traction wheel set gradually in the riser side along S type route, the bits device setting is removed to multi-angle formula between a plurality of disc wire drawing devices, the leading wheel sets up at riser entry and outlet side, under the operating condition, wire rod passes through the entry side leading wheel and follows S type route wraparound at every disc wire drawing device and go out by the guide of outlet side leading wheel, the crooked department of wire rod by the leading wheel guides.

Preferably, the round wire drawing device comprises a first elastic abutting frame, a first wire drawing wheel and a second wire drawing wheel, the first elastic abutting frame is arranged on one side of the vertical plate side by side at equal intervals, the first wire drawing wheel and the second wire drawing wheel are rotatably arranged at the elastic abutting end of the first elastic abutting frame, and in a working state, the metal wire is sequentially wound on the first wire drawing wheel and the second wire drawing wheel.

Preferably, first elasticity butt frame is including the curb plate, first fixed plate, the telescopic link, the stop block, first fixed axle and first spring, the curb plate is equidistant to be set up in riser one side, first fixed plate sets up perpendicularly at curb plate one side bottom and top, the stop block vertically runs through first fixed plate both sides and first fixed axle both ends fixed connection, the coaxial setting of stop block is at the telescopic link other end, first wire drawing wheel and second wire drawing wheel rotate respectively and set up on the first fixed axle of upper and lower extreme, the coaxial cover of first spring is established on first fixed axle, the butt is respectively on first fixed plate and telescopic link at first spring both ends.

Preferably, the multi-angle scrap removing device comprises a multi-angle inner sleeve, a U-shaped spring piece, a second spring, a multi-angle outer sleeve and a multi-angle fixing ring, the multi-angle outer sleeve is obliquely arranged on one side of the vertical plate, two ends of the multi-angle inner sleeve are coaxially arranged inside the multi-angle outer sleeve through the multi-angle fixing ring, a strip-shaped opening is axially formed in the plane of the multi-angle inner sleeve, the convex end of the U-shaped spring piece faces the axis of the multi-angle inner sleeve and is arranged in the strip-shaped opening, first fixing columns are axially and equidistantly arranged on the concave surface of the U-shaped spring piece, scraping blades are axially and equidistantly arranged on the convex surface of the U-shaped spring piece, second fixing columns are axially and equidistantly arranged on the inner side surface of the multi-angle outer, the metal wire coaxially passes through the polygonal inner sleeve, and the scraping blade is elastically abutted against the circumferential surface of the metal wire.

Preferably, the first elastic traction wheel comprises a guide rail, a sliding block, a second fixing plate, a second fixing shaft, a traction wheel, a first screw, a fixing seat, a second screw and a tension spring, the fixing seat is arranged on one side of the vertical plate, the guide rail is coaxially arranged on one side of the fixing seat, the sliding block is arranged on the guide rail in a sliding mode, the second fixing plate is fixedly arranged on the sliding block, the second fixing shaft is vertically and fixedly arranged on the second fixing plate, the traction wheel is rotatably arranged on the second fixing shaft, the first screw is vertically arranged on one side of the second fixing plate, the second screw is vertically arranged on one side of the fixing seat, two ends of the tension spring are fixedly connected with the first screw and the second screw, and in a working state, the metal wire is wound on the; the second elastic traction wheel has the same structure as the first elastic traction wheel.

Preferably, annealing device is including second elasticity butt frame, first annealing wheel and second annealing wheel, and second elasticity butt frame sets up between first elasticity traction wheel and second elasticity traction wheel, and first annealing wheel and second annealing wheel rotate to set up on second elasticity butt frame working shaft, and under the operating condition, metal wire winds and connects on first annealing wheel and second annealing wheel, and second elasticity butt frame is the same with first elasticity butt frame structure completely.

Compared with the prior art, the utility model beneficial effect who has is:

the during operation sets up wire rod along S type route, receives at the outlet side and draws wire rod, and the disc wire drawing device can carry out elasticity butt wire drawing on wire rod surface, and multi-angle formula chip removal device is used for clearing up the attachment on the wire rod periphery, and wire rod bending department is guided by first elasticity traction wheel and second elasticity traction wheel and can makes wire rod be in keep tight state all the time on the device to be convenient for the wire drawing annealing, and after wire rod wire drawing, by first elasticity traction wheel guide to annealing device department annealing, have second elasticity traction wheel and outlet side guide pulley guide to draw out after the annealing is accomplished.

The device has simple structure and convenient installation, and can continuously anneal and draw wires.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a perspective view of a first elastic abutment frame of the present invention;

FIG. 4 is a front view of the multi-angle crumb removing device of the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

FIG. 6 is a stable three-dimensional exploded view of the multi-angle type crumb removing device of the present invention;

fig. 7 is a perspective view of the first elastic traction wheel of the present invention.

The reference numbers in the figures are:

1. a vertical plate;

2. a round wire drawing device; 2a, a first elastic abutting frame; 2a1, side panels; 2a2, a first fixing plate; 2a3, a telescopic rod; 2a4, stop block; 2a5, a first fixed shaft; 2a6, a first spring; 2b, a first wire drawing wheel; 2c, a second wire drawing wheel;

3. a multi-angle chip removing device; 3a, a polygonal inner sleeve; 3a1, strip port; 3b, U-shaped spring pieces; 3b1, a first fixed column; 3b2, wiper blade; 3c, a second spring; 3d, a polygonal outer sleeve; 3d1, second fixed column; 3e, a polygonal fixing ring;

4. a first elastic traction wheel; 4a, a guide rail; 4b, a sliding block; 4c, a second fixing plate; 4d, a second fixed shaft; 4e, a traction wheel; 4f, a first screw; 4g, fixing a base; 4h, a second screw; 4i, a tension spring;

5. an annealing device; 5a, a second elastic abutting frame; 5b, a first annealing wheel; 5c, a second annealing wheel;

6. a second elastic traction wheel;

7. a guide wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 to 7, a continuous annealing and wire drawing device for metal wire, which comprises a vertical plate 1, a round wire drawing device 2, a multi-angle type chip removing device 3, a first elastic traction wheel 4, an annealing device 5, a second elastic traction wheel 6 and a guide wheel 7, wherein the round wire drawing device 2, the first elastic traction wheel 4, the annealing device 5 and the second elastic traction wheel 6 are sequentially arranged on the side surface of the vertical plate 1 along an S-shaped path, the multi-angle type chip removing device 3 is arranged among the round wire drawing devices 2, the guide wheel 7 is arranged at the inlet and the outlet of the vertical plate 1, in a working state, the metal wire is wound on each round wire drawing device along the S-shaped path through the inlet guide wheel 7 and is guided out by the outlet guide wheel 7, and the bending part of the metal wire is guided by the guide wheel.

During operation, set up metal wire along S type route, receive at the outlet side and draw metal wire, and disc wire drawing device 2 can carry out the elasticity butt wire drawing at metal wire, and multi-angle formula chip removal device 3 is used for clearing up the attachment on the metal wire periphery, and metal wire bending department is guided by first elasticity traction wheel 4 and second elasticity traction wheel 6 and can makes metal wire be in keep tight state all the time on the device to be convenient for the wire drawing annealing, and after the metal wire drawing is finished, lead to annealing device 5 department by first elasticity traction wheel 4 and anneal, have second elasticity traction wheel 6 and outlet side leading wheel 7 to guide after the annealing to draw out.

The round wire drawing device 2 comprises a first elastic abutting frame 2a, a first wire drawing wheel 2b and a second wire drawing wheel 2c, the first elastic abutting frame 2a is arranged on one side of the vertical plate 1 side in parallel at equal intervals, the first wire drawing wheel 2b and the second wire drawing wheel 2c are rotatably arranged at the elastic abutting end of the first elastic abutting frame 2a, and under the working state, metal wires are sequentially wound on the first wire drawing wheel 2b and the second wire drawing wheel 2 c.

First elasticity butt frame 2a is equidistant to be set up side by side in riser 1 one side, and first wire wheel 2b and second wire wheel 2c rotate to set up at first elasticity butt frame 2a elasticity butt end to be convenient for under operating condition, wire rod winds in proper order around connecting on first wire wheel 2b and second wire wheel 2c, through first elasticity butt frame 2a elasticity butt, makes wire rod can give and tightly stretches tight all the time on the wire wheel, thereby be convenient for the wire drawing.

The first elastic abutting frame 2a comprises a side plate 2a1, a first fixing plate 2a2, an expansion link 2a3, a stop block 2a4, a first fixing shaft 2a5 and a first spring 2a6, the side plate 2a1 is arranged on one side of the vertical plate 1 at equal intervals, the first fixing plate 2a2 is vertically arranged at the bottom end and the top end of one side of the side plate 2a1, the stop block 2a4 vertically penetrates through two sides of the first fixing plate 2a2 and is fixedly connected with two ends of the first fixing shaft 2a5, the stop block 2a4 is coaxially arranged at the other end of the expansion link 2a3, a first wire drawing wheel 2b and a second wire drawing wheel 2c are respectively and rotatably arranged on the first fixing shaft 2a5 at the upper end and the lower end, the first spring 2a6 is coaxially sleeved on the first fixing shaft 2a5, and two ends of the first spring 2a6 are respectively abutted against the first fixing plate 2a2 and.

The side plates 2a1 are equidistantly arranged on one side of the vertical plate 1, the first fixing plate 2a2 is vertically arranged at the bottom end and the top end of one side of the side plate 2a1, the stopping block 2a4 vertically penetrates through two sides of the first fixing plate 2a2 and is fixedly connected with two ends of the first fixing shaft 2a5, the 2aa4 is coaxially arranged at the other end of the telescopic rod 2a3, the first wire drawing wheel 2b and the second wire drawing wheel 2c are respectively rotatably arranged on the upper and lower first fixing shafts 2a5, the first spring 2a6 is coaxially sleeved on the first fixing shaft 2a5, two ends of the first spring 2a6 are respectively abutted against the first fixing plate 2a2 and the telescopic rod 2a3, when a metal wire is wound on the first wire drawing wheel 2b and the second wire drawing wheel 2c, the wire can be stably drawn under the elastic force of the first spring 2a6, and the stopping block 2a4 is used for preventing the telescopic rod 2a3 from falling off from the first fixing plate 2 a.

The multi-angle type scrap removing device 3 comprises a multi-angle inner sleeve 3a, a U-shaped spring piece 3b, a second spring 3c, a multi-angle outer sleeve 3d and a multi-angle fixing ring 3e, the multi-angle outer sleeve 3d is obliquely arranged on one side of a vertical plate 1, two ends of the multi-angle inner sleeve 3a are coaxially arranged inside the multi-angle outer sleeve 3d through the multi-angle fixing ring 3e, a strip-shaped opening 3a1 is axially arranged on the plane of the multi-angle inner sleeve 3a, the convex end of the U-shaped spring piece 3b faces the axis of the multi-angle inner sleeve 3a and is arranged in a strip-shaped opening 3a1, first fixing columns 3b1 are axially arranged on the concave surface of the U-shaped spring piece 3b at equal intervals, scraping blades 3b2 are axially arranged on the convex surface of the U-shaped spring piece 3b at equal intervals, second fixing columns 3d1 are axially equal intervals on the inner side surface of the multi-angle outer sleeve 3d, two ends, in the working state, the metal wire coaxially passes through the polygonal inner sleeve 3a, and the wiper blade 3b2 elastically abuts on the circumferential surface of the metal wire.

The polygonal outer sleeve 3d is obliquely arranged on one side of the vertical plate 1, two ends of the polygonal inner sleeve 3a are coaxially arranged inside the polygonal outer sleeve 3d through a polygonal fixing ring 3e, a strip-shaped opening 3a1 is axially arranged on the plane of the polygonal inner sleeve 3a, the convex end of a U-shaped spring piece 3b is arranged in the strip-shaped opening 3a1 towards the axis of the polygonal inner sleeve 3a, first fixed columns 3b1 are axially and equidistantly arranged on the inner concave surface of the U-shaped spring piece 3b, scraping blades 3b2 are axially and equidistantly arranged on the outer convex surface of the U-shaped spring piece 3b, second fixed columns 3d1 are axially and equidistantly arranged on the inner side surface of the polygonal outer sleeve 3d, two ends of a second spring 3c are respectively and coaxially and fixedly connected with a first fixed column 3b1 and a second fixed column 3d1, so that a metal wire coaxially penetrates through the polygonal inner sleeve 3a in a working state, the scraping blades 3b2, therefore, when the metal wire is in a stretching state, the second spring 3c is always abutted on the U-shaped spring piece 3b, so that the scraping piece 3b2 is abutted on the surface of the metal wire, and attachments on the surface of the metal wire are hung down, thereby facilitating wire drawing.

The first elastic traction wheel 4 comprises a guide rail 4a, a slide block 4b, a second fixed plate 4c, a second fixed shaft 4d, a traction wheel 4e, a first screw 4f, a fixed seat 4g, a second screw 4h and a tension spring 4i, the fixed seat 4g is arranged on one side of the vertical plate 1, the guide rail 4a is coaxially arranged on one side of the fixed seat 4g, the sliding block 4b is arranged on the guide rail 4a in a sliding manner, the second fixing plate 4c is fixedly arranged on the sliding block 4b, the second fixing shaft 4d is vertically and fixedly arranged on the second fixing plate 4c, the traction wheel 4e is rotatably arranged on the second fixing shaft 4d, the first screw 4f is vertically arranged on one side of the second fixing plate 4c, the second screw 4h is vertically arranged on one side of the fixed seat 4g, two ends of the tension spring 4i are fixedly connected with the first screw 4f and the second screw 4h, and in a working state, a metal wire is wound on the traction wheel 4 e; the second elastic traction wheel 6 is identical in structure to the first elastic traction wheel 4.

The fixed seat 4g is arranged on one side of the vertical plate 1, the guide rail 4a is coaxially arranged on one side of the fixed seat 4g, the sliding block 4b is arranged on the guide rail 4a in a sliding manner, the second fixed plate 4c is fixedly arranged on the sliding block 4b, the second fixed shaft 4d is vertically and fixedly arranged on the second fixed plate 4c, the traction wheel 4e is rotatably arranged on the second fixed shaft 4d, the first screw 4f is vertically arranged on one side of the second fixed plate 4c, the second screw 4h is vertically arranged on one side of the fixed seat 4g, two ends of the tension spring 4i are respectively fixedly connected with the first screw 4f and the second screw 4h, the second elastic traction wheel 6 and the first elastic traction wheel 4 are completely identical in structure, so that the metal wire is wound on the traction wheel 4e in a working state, the two ends of the tension spring 4i pull the first screw 4f and the second screw 4h in a bending state, so that the sliding block 4b slides outwards on the guide rail 4a, and the bending part of the metal wire is elastically stretched, thereby preventing the metal wire from loosening and influencing the wire drawing effect.

Annealing device 5 is including second elasticity butt frame 5a, first annealing wheel 5b and second annealing wheel 5c, second elasticity butt frame 5a sets up between first elasticity traction wheel 4 and second elasticity traction wheel 6, first annealing wheel 5b and second annealing wheel 5c rotate and set up on second elasticity butt frame 5a working shaft, under the operating condition, the metal wire connects around on first annealing wheel 5b and second annealing wheel 5c, second elasticity butt frame 5a is the same with first elasticity butt frame 2a structure completely.

Second elasticity butt frame 5a sets up between first elasticity traction wheel 4 and second elasticity traction wheel 6, and first annealing wheel 5b and second annealing wheel 5c rotate and set up on second elasticity butt frame 5a working shaft, thereby make under the operating condition, metal wire is around connecting on first annealing wheel 5b and second annealing wheel 5c, and second elasticity butt frame 5a is the same with first elasticity butt frame 2a structure completely, make, metal wire is after the wire drawing, the annealing wheel can remain the butt on metal wire surface all the time, thereby does benefit to the annealing. Is not affected by abrasion.

The utility model discloses a theory of operation:

during operation, set up metal wire along S type route, receive at the outlet side and draw metal wire, and disc wire drawing device 2 can carry out the elasticity butt wire drawing on metal wire surface, and multi-angle formula chip removal device 3 is used for clearing up the attachment on the metal wire periphery, and metal wire bending department is guided by first elasticity traction wheel 4 and second elasticity traction wheel 6 and can makes metal wire be in keep tight state all the time on the device to be convenient for the wire drawing annealing, and after the metal wire drawing is finished, lead to annealing device 5 department by first elasticity traction wheel 4 and anneal, have second elasticity traction wheel 6 and outlet side leading wheel 7 to guide after the annealing to draw out.

Claims (6)

1. A metal wire continuous annealing and wire drawing device is characterized by comprising a vertical plate (1), a round wire drawing device (2), a multi-angle type scrap removing device (3), a first elastic traction wheel (4), an annealing device (5), a second elastic traction wheel (6) and a guide wheel (7), wherein the round wire drawing device (2), the first elastic traction wheel (4), the annealing device (5) and the second elastic traction wheel (6) are sequentially arranged on the side surface of the vertical plate (1) along an S-shaped path, the multi-angle type scrap removing device (3) is arranged among the round wire drawing devices (2), the guide wheel (7) is arranged at the inlet and the outlet of the vertical plate (1), and in a working state, the wire is wound around each round wire drawing device (2) along an S-shaped path by an inlet-side guide wheel (7) and is guided out by an outlet-side guide wheel (7), and the bends of the wire are guided by the traction wheels.

2. The continuous annealing and wire-drawing device of the metal wire according to claim 1, characterized in that the round wire-drawing device (2) comprises a first elastic abutting frame (2a), a first wire-drawing wheel (2b) and a second wire-drawing wheel (2c), the first elastic abutting frame (2a) is arranged on one side of the vertical plate (1) side by side at equal intervals, the first wire-drawing wheel (2b) and the second wire-drawing wheel (2c) are rotatably arranged at the elastic abutting end of the first elastic abutting frame (2a), and the metal wire is sequentially wound on the first wire-drawing wheel (2b) and the second wire-drawing wheel (2c) in the working state.

3. The continuous annealing and wire-drawing device of metal wire according to claim 2, characterized in that the first elastic abutting frame (2a) comprises a side plate (2a1), a first fixed plate (2a2), a telescopic rod (2a3), a stop block (2a4), a first fixed shaft (2a5) and a first spring (2a6), the side plate (2a1) is arranged on one side of the vertical plate (1) at equal intervals, the first fixed plate (2a2) is vertically arranged at the bottom end and the top end of one side of the side plate (2a1), the stop block (2a4) vertically penetrates through two sides of the first fixed plate (2a2) and is fixedly connected with two ends of the first fixed shaft (2a5), the stop block (2a4) is coaxially arranged at the other end of the telescopic rod (2a3), the first wire-drawing wheel (2b) and the second wire-drawing wheel (2c) are respectively rotatably arranged on the first fixed shaft (2a5) at the upper end, the first spring (6) is coaxially sleeved on the first fixed shaft (5), two ends of the first spring (2a6) are respectively abutted against the first fixing plate (2a2) and the telescopic rod (2a 3).

4. The continuous annealing and wire drawing device of the metal wire rod as claimed in claim 1, wherein the multi-angle type chip removing device (3) comprises a multi-angle inner sleeve (3a), a U-shaped spring piece (3b), a second spring (3c), a multi-angle outer sleeve (3d) and a multi-angle fixing ring (3e), the multi-angle outer sleeve (3d) is obliquely arranged on one side of the vertical plate (1), two ends of the multi-angle inner sleeve (3a) are coaxially arranged inside the multi-angle outer sleeve (3d) through the multi-angle fixing ring (3e), a strip-shaped opening (3a1) is axially arranged on the plane of the multi-angle inner sleeve (3a), the convex end of the U-shaped spring piece (3b) is arranged in the strip-shaped opening (3a1) towards the axis of the multi-angle inner sleeve (3a), first fixing columns (3b1) are axially arranged on the concave surface of the U-shaped spring piece (3b) at equal intervals, and scraping blades (3b2) are axially arranged on the, second fixing columns (3d1) are axially and equidistantly arranged on the inner side face of the polygonal outer sleeve (3d), two ends of a second spring (3c) are coaxially and fixedly connected with the first fixing column (3b1) and the second fixing column (3d1) respectively, in a working state, the metal wire coaxially penetrates through the polygonal inner sleeve (3a), and the scraping blade (3b2) is elastically abutted to the circumferential face of the metal wire.

5. The metal wire continuous annealing and wire drawing device according to claim 1, wherein the first elastic traction wheel (4) comprises a guide rail (4a), a slide block (4b), a second fixing plate (4c), a second fixing shaft (4d), a traction wheel (4e), a first screw (4f), a fixing seat (4g), a second screw (4h) and a tension spring (4i), the fixing seat (4g) is arranged on one side of the vertical plate (1), the guide rail (4a) is coaxially arranged on one side of the fixing seat (4g), the slide block (4b) is slidably arranged on the guide rail (4a), the second fixing plate (4c) is fixedly arranged on the slide block (4b), the second fixing shaft (4d) is vertically fixedly arranged on the second fixing plate (4c), the traction wheel (4e) is rotatably arranged on the second fixing shaft (4d), the first screw (4f) is vertically arranged on one side of the second fixing plate (4c), the second screw (4h) is vertically arranged on one side of the fixed seat (4g), two ends of the tension spring (4i) are fixedly connected with the first screw (4f) and the second screw (4h), and the metal wire is wound on the traction wheel (4e) in a working state; the second elastic traction wheel (6) and the first elastic traction wheel (4) have the same structure.

6. The continuous annealing and wire drawing device of the metal wire rod according to claim 1, characterized in that the annealing device (5) comprises a second elastic abutting frame (5a), a first annealing wheel (5b) and a second annealing wheel (5c), the second elastic abutting frame (5a) is arranged between the first elastic traction wheel (4) and the second elastic traction wheel (6), the first annealing wheel (5b) and the second annealing wheel (5c) are rotatably arranged on a working shaft of the second elastic abutting frame (5a), the metal wire rod is wound on the first annealing wheel (5b) and the second annealing wheel (5c) in a working state, and the second elastic abutting frame (5a) has the same structure as the first elastic abutting frame (2 a).

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