Lead guiding device for cold-drawing machine

Abstract

The utility model relates to the technical field of lead guiding devices, in particular to a lead guiding device for a cold-drawing machine, which comprises a support frame, two rotatable guide wheels are arranged on the support frame, the two guide wheels are tangent to each other, semicircular grooves are arranged on the peripheral sides of the two guide wheels, and the two semicircular grooves form a circular groove for a lead to pass through. The supporting frame is fixedly connected with a collecting pipe, one end of the collecting pipe is provided with a collecting opening, the other end of the collecting pipe is provided with a guide-out opening, the guide-out opening is aligned to the circular groove, the collecting opening is in a horn shape expanding outwards and faces the pay-off machine, and the diameter of the collecting opening is larger than that of the guide-out opening. Therefore, the abrasion speed of the guide wheel is reduced, and the service life is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lead wire guiding devices, in particular to a lead wire guiding device for a cold drawing machine. Background Art

[0002] Wire drawing machine is a widely used mechanical equipment in industrial applications. It is widely used in machinery manufacturing, hardware processing, petrochemical, plastics, bamboo and wood products, bonding wire and other industries. The wire drawing machine includes a pay-off machine and several cold drawing machines. The pay-off machine pays out the coiled lead wires individually, and then passes through several cold drawing machines to stretch the lead wires into the shape people need. Since the lead wire is wound on the pay-off machine, after the lead wire is separated from the pay-off machine, it will change from a bent state to a straight state during the movement, and then enter the cold drawing machine. If the lead wire is not guided in position when entering the cold drawing machine, the lead wire may tilt into the cold drawing machine, which will affect the wire drawing effect of the cold drawing machine. Therefore, a lead guide device is generally installed at the lead wire entrance of the cold drawing machine to assist the lead wire to enter the cold drawing machine.

[0003] Most of the existing lead guiding devices pass the lead wire through two spliced ​​wheels. There are semicircular grooves on the circumference of each wheel. The lead wire is passed through the circular groove composed of the two semicircular grooves to achieve the lead wire entering the lead wire entrance facing the cold drawing machine. However, since the lead wire is distributed in a relatively scattered manner before passing through the two wheels, the lead wire will generate greater friction and extrusion force on the two wheels during the process of being guided and gathered into the circular groove. In addition, the gravity of the wire itself causes the two wheels to wear faster and have a shorter service life.

[0004] Therefore, it is necessary to propose a wire guide device for a cold drawing machine to slow down the wear speed of the two wheels and increase the service life. Utility Model Content

[0005] The utility model aims to solve the problem that the existing lead wire guiding device generates large friction and extrusion force on two wheels during the process of gathering the lead wire into the circular groove, resulting in rapid wear of the two points and a short service life. A lead wire guiding device for a cold drawing machine is now provided.

[0006] The technical solution of the utility model is:

[0007] A lead wire guiding device for a cold drawing machine comprises a support frame, wherein the support frame is provided with two rotatable guide wheels, the two guide wheels are tangent to each other, and the circumferential sides of the two guide wheels are provided with semicircular grooves, and the two semicircular grooves form a circular groove for the lead wire to pass through. A convergence tube is fixedly connected to the support frame, and a convergence port is provided at one end of the convergence tube, and a lead-out port is provided at the other end thereof, and the lead-out port is aligned with the circular groove, and the convergence port is in the shape of a trumpet that expands outward and faces a wire unwinding machine, and the diameter of the convergence port is greater than the diameter of the lead-out port.

[0008] Furthermore, a support column is fixedly connected to the support frame, the support column is placed vertically and a sliding block is sleeved on the outer side thereof, the sliding block can slide along the support column, and the guide wheel is rotatably connected to the sliding block.

[0009] Furthermore, a spring is sleeved on the outer side of the support column, and the spring is located between the top end of the support column and the slider and between the bottom end of the support column and the slider.

[0010] Furthermore, the sliding blocks are located on both sides of the guide wheel.

[0011] Furthermore, the inner wall of the convergence port is a smooth curved surface.

[0012] The utility model discloses a lead wire guiding device for a cold drawing machine. When guiding the lead wire, the lead wire first passes through a convergence port and enters into a convergence tube, then enters into a circular groove formed by two guide wheels from the lead-out port, and finally enters into the drawing machine. Since the convergence port is in the shape of a trumpet that expands outward, there will be a buffer in the process of the lead wire passing through the convergence port and being converged, so that the lead wire gradually enters into the convergence tube along the shape of the convergence port, and will not be forced to deform eagerly. Therefore, the friction and extrusion force of the lead wire on the convergence tube during the whole buffering process will be relatively small, and because of the supporting effect of the convergence tube, the guide wheel will only bear a part of the pressure of the lead wire. Therefore, compared with the guide wheel in the traditional technology, the friction force of the guide wheel in the technical solution is greatly reduced, thereby slowing down the wear rate of the guide wheel and greatly improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of the utility model;

[0014] Figure 2 For this utility model Figure 1 Sectional view at AA;

[0015] Figure 3 This is a combined view of the support frame and guide wheels of the utility model.

[0016] Figure numerals: 1, support frame; 2, guide wheel; 3, semicircular groove; 4, circular groove; 5, convergence tube; 6, convergence port; 7, guide outlet; 8, support column; 9, slider; 10, spring; 11, lead wire. DETAILED DESCRIPTION

[0017] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0018] Embodiment 1:

[0019] like Figure 1 and Figure 2 As shown, a lead wire guiding device for a cold drawing machine comprises a support frame 1, on which two rotatable guide wheels 2 are arranged, the two guide wheels 2 are tangent to each other, and the circumferential sides of the two guide wheels 2 are provided with semicircular grooves 3, the two semicircular grooves 3 form a circular groove 4 for the lead wire 11 to pass through, a convergence tube 5 is screwedly connected to the support frame 1, one end of the convergence tube 5 is provided with a convergence port 6, and the other end thereof is provided with a guide port 7, the guide port 7 is aligned with the circular groove 4, the convergence port 6 is in the shape of a trumpet that expands outward and faces the wire unwinding machine, and the diameter of the convergence port 6 is larger than the diameter of the guide port 7.

[0020] Preferably, a support column 8 is screwed onto the support frame 1, the support column 8 is placed vertically and a slider 9 is sleeved on the outer side thereof, the slider 9 can slide along the support column 8, and the guide wheel 2 is rotatably connected to the slider 9 via a bearing.

[0021] Preferably, a spring 10 is sleeved on the outer side of the support column 8, and the spring 10 is located between the top end of the support column 8 and the slider 9 and between the bottom end of the support column 8 and the slider 9. The specific installation is that one end of the spring 10 contacts the top end of the slider 9, and the other end contacts the top support frame 1, and one end of the spring 10 contacts the bottom end of the slider 9, and the other end contacts the bottom support frame 1. Because the two end portions of the support column 8 are bolt heads, which are located on the outside of the support frame 1, the spring 10 first contacts the support frame 1.

[0022] Since the slider 9 can slide along the support column 8, under the traction of the elastic force of the spring 10, the slider 9 will stay in the middle of the support column 8. When the lead wire 11 passes through the circular groove 4, even if the lead wire 11 will shake up and down due to its own deformation, it will not generate excessive squeezing force and friction force on the guide wheel 2. This is because when the force on the guide wheel 2 suddenly increases, it will move up and down along the support column 8, thereby removing the force applied by the lead wire 11 to the guide wheel 2, further improving the service life of the guide wheel 2.

[0023] Preferably, the sliding blocks 9 are located on both sides of the guide wheel 2 .

[0024] Preferably, the inner wall of the convergence port 6 is a smooth curved surface, and the smooth curved surface can reduce the friction of the lead wire 11 on the inner wall of the convergence tube 5, thereby extending the service life.

[0025] like Figure 2 and Figure 3As shown, when guiding the lead wire 11, the lead wire 11 first passes through the convergence port 6 into the convergence tube 5, then enters the circular groove 4 formed by the two guide wheels 2 from the lead outlet 7, and finally enters the drawing machine. Since the convergence port 6 is in the shape of a trumpet that expands outward, there will be a buffer in the process of the lead wire 11 passing through the convergence port 6 and being converged, so that the lead wire 11 gradually enters the convergence tube 5 along the shape of the convergence port 6, and will not be forced to deform eagerly. Therefore, during the entire buffering process, the friction and extrusion force of the lead wire 11 on the convergence tube 5 will be relatively small, and because of the supporting effect of the convergence tube 5, the guide wheel 2 will only bear a part of the pressure of the lead wire 11. Therefore, compared with the guide wheel 2 in the traditional technology, the friction force of the guide wheel 2 in this technical solution is greatly reduced, thereby slowing down the wear rate of the guide wheel 2 and greatly improving the service life.

[0026] The above description is only a preferred embodiment of the utility model, and is not intended to limit the scope of implementation of the utility model. That is, all equivalent changes and modifications made according to the content of the patent application scope of the utility model should belong to the technical scope of the utility model.

Claims

1. A lead wire guiding device for a cold drawing machine, comprising a support frame (1), wherein the support frame (1) is provided with two rotatable guide wheels (2), the two guide wheels (2) are tangent to each other, and the circumferential sides of the two guide wheels (2) are both provided with semicircular grooves (3), and the two semicircular grooves (3) form a circular groove (4) for the lead wire (11) to pass through, characterized in that: A converging tube (5) is fixedly connected to the support frame (1), one end of the converging tube (5) is provided with a converging opening (6), and the other end thereof is provided with a guide outlet (7), the guide outlet (7) is aligned with the circular groove (4), the converging opening (6) is in the shape of a trumpet that expands outwards and faces the pay-off machine, and the diameter of the converging opening (6) is greater than the diameter of the guide outlet (7).

2. A lead wire guiding device for a cold drawing machine according to claim 1, characterized in that: A support column (8) is fixedly connected to the support frame (1); the support column (8) is placed vertically and a slider (9) is sleeved on the outer side thereof; the slider (9) can slide along the support column (8); and the guide wheel (2) is rotatably connected to the slider (9).

3. A wire guide device for a cold drawing machine according to claim 2, characterized in that: A spring (10) is sleeved on the outer side of the support column (8), and the spring (10) is located between the top end of the support column (8) and the slider (9) and between the bottom end of the support column (8) and the slider (9).

4. A lead wire guiding device for a cold drawing machine according to claim 3, characterized in that: The sliding blocks (9) are located on both sides of the guide wheel (2).

5. The lead wire guiding device for a cold drawing machine according to claim 1, characterized in that: The inner wall of the convergence opening (6) is a smooth curved surface.

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