Online blow-drying device of copper wire drawing machine

Abstract

The utility model discloses an on-line blow-drying device of a copper wire drawing machine, relates to the technical field of cable production equipment, and solves the technical problem that wind power cannot meet the blow-drying requirement of each surface of a monofilament due to a larger air outlet of a blow-drying machine arranged on the existing copper wire drawing machine. Comprising an air blowing box and air outlet holes allowing copper wires to penetrate through, the air outlet holes are formed in the top and the bottom of the air blowing box respectively, cylinders are installed at the top and the bottom of the air blowing box respectively, air guide holes covering the air outlet holes are formed in the bottoms of the cylinders, matched molds are movably inserted into the cylinders, and air blowing holes corresponding to the air guide holes are formed in the molds in a penetrating mode. And a pressing cylinder for pressing the mold is mounted on the outer side of the cylinder body. According to the utility model, high-speed airflow can be conveniently formed to effectively blow-dry the copper wire passing through the die, and the contact path between the copper wire and the airflow can be conveniently prolonged, so that the copper wire can be fully blow-dried, the oxidation of a copper conductor can be reduced, and the finished product quality of the copper wire can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable production equipment, and particularly relates to an on-line drying device for a copper wire drawing machine. Background Art

[0002] In wire and cable, pure copper is a key material for conductors. However, pure copper is a metal that is extremely prone to oxidation and will turn black when oxidized under high temperature and humid conditions. During the manufacturing process of conductors for wire and cable, copper rods with a diameter of 8.0 are generally used. After passing through a wire drawing machine, they are drawn into single wires required for the product and then stranded into conductors. During the wire drawing process, metal deformation occurs, generating heat. Therefore, an emulsion is required for lubrication. The emulsion contains a certain amount of moisture and is likely to adhere to the surface during the wire drawing process. Therefore, a method needs to be taken to remove the moisture. Generally, a drying machine is equipped on the wire drawing machine to blow away the moisture.

[0003] In order to facilitate the removal of moisture adhering to the surface of the copper wire during the wire drawing process, a drying machine (composed of a blowing box and a blowing pipe communicating with its inner cavity) is usually equipped on the copper wire drawing machine. Air outlets for the copper wire to pass through are provided at the top and bottom of the blowing box. Since the existing air outlets are relatively large, the wind force cannot meet the drying requirements of all surfaces of the single wire, resulting in water stains on the surface of the single wire and a high temperature of the single wire. Once it comes into contact with air, it is prone to oxidation, and oxidation black spots will form in areas with moisture, seriously affecting the quality of the finished product. Moreover, for the single wire on the T-shaped surface, each surface cannot be dried, so oxidation is more likely to occur. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides an on-line drying device for a copper wire drawing machine, which solves the problem that the drying machine equipped on the existing copper wire drawing machine cannot meet the drying requirements of all surfaces of the single wire due to the large air outlets.

[0005] To achieve the above object, according to an embodiment of the first aspect of the utility model, an on-line drying device for a copper wire drawing machine is provided, which includes a blowing box and air outlet holes for the copper wire to pass through. The air outlet holes are respectively opened at the top and bottom of the blowing box. Cylinders are respectively installed at the top and bottom of the blowing box. A wind guiding hole covering the air outlet hole is opened at the bottom of the cylinder, and a matching die is movably inserted into the cylinder. A blowing hole corresponding to the wind guiding hole is penetrated through the die. A pressing cylinder for pressing the die is installed outside the cylinder. One end of the pressing cylinder away from the die is installed with a telescopic pipe fitting, and the bottom end pipe orifice of the pipe fitting corresponds to the position of the blowing hole.

[0006] As a further technical solution of the utility model, the outer wall of the cylinder is provided with uniformly distributed external threads, the inner wall of the pressing cylinder is provided with internal threads corresponding to the external threads, the pressing cylinder is threadedly sleeved with the cylinder, and a sealing component is installed between the pressing cylinder and the die.

[0007] As a further technical solution of the present utility model, a sealing ring adapted to the outer diameter of the mold is installed on the inner barrel wall of the barrel.

[0008] As a further technical solution of the present utility model, the sealing assembly includes a sealing gasket installed at one end of the pressing cylinder close to the mold. The sealing gasket is attached to one end of the mold away from the blowing box, and a transition hole covering the blowing hole is penetrated through the sealing gasket. The transition hole is communicated with the inner cavity of the pipe fitting.

[0009] As a further technical solution of the present utility model, the cross-sectional diameter of the blowing hole is 1 mm larger than the cross-sectional diameter of the copper wire.

[0010] As a further technical solution of the present utility model, the pipe fitting includes a metal corrugated pipe, and the inner diameter of the metal corrugated pipe is larger than the cross-sectional diameter of the copper wire.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, by installing a barrel corresponding to the air outlet hole on the blowing box and installing a mold with blowing holes in the barrel, the air in the air outlet hole is conveniently guided into the blowing holes by the air guiding holes, and the air introduced into the blowing holes flows out through the gap between the copper wire and the blowing holes. Compared with simply blowing the copper wire through the air outlet hole, the gap between the copper wire and the blowing hole will make the air flow larger, which is beneficial to improving the drying effect of the copper wire and reducing the occurrence of copper conductor oxidation.

[0013] 2. In the present utility model, by installing a pressing cylinder for pressing the mold on the outer side of the barrel, it is not only convenient to press and position the mold, but also convenient to replace a suitable mold according to the wire drawing needs when removing the pressing cylinder. With the telescopic pipe fitting on the pressing cylinder, it is convenient to adjust to a suitable length according to the processing needs. At the same time, the air blown out through the blowing holes can be introduced into the pipe fitting, effectively extending the blowing path of the copper wire and facilitating the full contact between the copper wire and the air flow, which is beneficial to further improving the drying effect of the copper wire and enhancing the finished product quality of the copper wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of an on-line drying device for a copper wire drawing machine of the present utility model;

[0015] Figure 2 is a partial perspective view after removing the pressing cylinder in an on-line drying device for a copper wire drawing machine of the present utility model;

[0016] Figure 3 is a schematic cross-sectional structure view of an on-line drying device for a copper wire drawing machine of the present utility model;

[0017] Figure 4 isFigure 3 Enlarged view of part A.

[0018] In the figure: 1, air blowing box; 2, copper wire; 3, air outlet hole; 4, cylinder body; 5, air guiding hole; 6, mold; 7, air blowing hole; 8, pressing cylinder; 9, pipe fitting; 10, external thread; 11, sealing ring; 12, sealing gasket; 13, transition hole. Specific implementation manner

[0019] Next, the technical solution of the present utility model will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0020] As Figures 1-4 shown, an on-line drying device for a copper wire drawing machine includes an air blowing box 1 and an air outlet hole 3 through which a copper wire 2 passes. The inner cavity of the air blowing box 1 is communicated with an air blowing pipe (not marked in the figure). The air outlet holes 3 are respectively opened at the top and bottom of the air blowing box 1. Cylinder bodies 4 are respectively installed at the top and bottom of the air blowing box 1. In this embodiment, the cylinder bodies 4 are fixedly welded to the air blowing box 1. An air guiding hole 5 covering the air outlet hole 3 is opened at the bottom of the cylinder body 4, and a matching mold 6 is movably inserted into the cylinder body 4.

[0021] In order to improve the sealing performance between the mold 6 and the cylinder body 4, in this embodiment, a sealing ring 11 adapted to the outer diameter of the mold 6 is installed on the inner cylinder wall of the cylinder body 4. An air blowing hole 7 corresponding to the air guiding hole 5 is penetrated through the mold 6. In this embodiment, the air outlet hole 3, the air guiding hole 5, and the air blowing hole 7 are coaxially arranged, and the copper wire 2 sequentially passes through the air outlet hole 3, the air guiding hole 5, and the air blowing hole 7.

[0022] In order to fully dry the copper wire 2 passing through the mold 6, in this embodiment, the cross-sectional diameter of the air blowing hole 7 is 1 mm larger than the cross-sectional diameter of the copper wire 2. It should be noted that for copper wires 2 of different models, there will be differences in their sizes, so the aperture diameters of the air blowing holes 7 of different molds 6 will also be different. However, in order to facilitate the installation of the mold 6 into the cylinder body 4, for different molds 6, only the aperture diameter of the air blowing hole 7 is different, and the rest are the same.

[0023] A pressure cylinder 8 for pressing the mold 6 is installed on the outer side of the cylinder body 4. In order to facilitate the replacement of the mold 6 as needed, in this embodiment, external threads 10 are evenly distributed on the outer cylinder wall of the cylinder body 4, and internal threads corresponding to the external threads 10 are provided on the inner cylinder wall of the pressure cylinder 8. The pressure cylinder 8 is threadedly sleeved on the cylinder body 4. By using the external threads 10 and the internal threads on the inner cylinder wall of the pressure cylinder 8, the pressure cylinder 8 and the cylinder body 4 can be quickly disassembled and assembled, which not only facilitates the installation and positioning of the mold 6 placed in the cylinder body 4, but also facilitates the replacement of the corresponding model of the mold 6 according to the processing requirements.

[0024] In order to extend the blowing path of the copper wire 2 and make the copper wire 2 fully contact with the air flow to further improve the drying effect, in this embodiment, a telescopic pipe fitting 9 is installed at one end of the pressure cylinder 8 away from the mold 6. The pipe fitting 9 includes a metal bellows, and the inner diameter of the metal bellows is larger than the cross-sectional diameter of the copper wire 2. The bottom end pipe orifice of the pipe fitting 9 corresponds to the position of the blowing hole 7. It should be noted that the telescopic pipe fitting 9 is convenient for adjusting to a suitable length according to the processing requirements of the copper wire 2. The air flow flowing out through the blowing hole 7 can continue to flow along the pipe fitting 9, and the copper wire 2 passes through the pipe fitting 9, so as to conveniently extend the drying path of the copper wire 2 and improve the drying effect.

[0025] In order to improve the stability of the pressing and positioning of the mold 6 and the sealing performance of the butt joint between the pipe fitting 9 and the blowing hole 7, in this embodiment, a sealing component is installed between the pressure cylinder 8 and the mold 6. The sealing component includes a sealing gasket 12 installed at one end of the pressure cylinder 8 close to the mold 6. The sealing gasket 12 is attached to one end of the mold 6 away from the blowing box 1 to increase the friction force and facilitate the pressing and positioning of the mold 6. A transition hole 13 covering the blowing hole 7 is penetrated through the sealing gasket 12, and the transition hole 13 is communicated with the inner cavity of the pipe fitting 9, so that the air flow flowing out through the blowing hole 7 can all flow into the pipe fitting 9 through the transition hole 13.

[0026] The working principle of the present utility model: The cylinder body 4 with the air guiding hole 5 is welded on the blowing box 1 so that the air guiding hole 5 covers the air outlet hole 3. Then, a suitable mold 6 is selected according to the processing requirements of the copper wire 2 and placed in the cylinder body 4, and the pressure cylinder 8 is threadedly installed on the outer side of the cylinder body 4 until the pressure cylinder 8 presses the mold 6. The copper wire 2 sequentially passes through the air outlet hole 3, the air guiding hole 5, the blowing hole 7, the transition hole 13 and the pipe fitting 9 on the pressure cylinder 8. The air flow flowing out through the air outlet hole 3 is introduced into the blowing hole 7 through the air guiding hole 5, so that the air flow in the blowing hole 7 flows at a high speed through the gap between the copper wire 2 and the blowing hole 7, thus facilitating the drying of the moisture on the surface of the copper wire 2. The air flow flowing out through the blowing hole 7 continues to flow into the pipe fitting 9 through the transition hole 13, thereby further drying the copper wire 2, effectively extending the contact path between the copper wire 2 and the air flow, and improving the drying effect of the copper wire 2.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An online drying device for a copper wire drawing machine, comprising a blow box (1) and an air outlet (3) for a copper wire (2) to pass through, wherein the air outlet (3) is respectively provided at the top and the bottom of the blow box (1), and characterized in that: The top and bottom of the blowing box (1) are respectively provided with a cylinder (4), the bottom of the cylinder (4) is provided with an air guide hole (5) covering the air outlet hole (3), and a matching mold (6) is movably inserted in the cylinder (4), and a blowing hole (7) corresponding to the air guide hole (5) is penetrated through the mold (6), and a pressing cylinder (8) for pressing the mold (6) is installed on the outside of the cylinder (4), and a retractable pipe (9) is installed at one end of the pressing cylinder (8) away from the mold (6), and the bottom end of the pipe opening of the pipe (9) corresponds to the position of the blowing hole (7).

2. The online drying device for a copper wire drawing machine according to claim 1, characterized in that: The outer wall of the cylinder (4) is provided with uniformly distributed external threads (10), the inner wall of the pressing cylinder (8) is provided with internal threads corresponding to the external threads (10), the pressing cylinder (8) is threadedly sleeved with the cylinder (4), and a sealing assembly is installed between the pressing cylinder (8) and the mold (6).

3. The online drying device for a copper wire drawing machine according to claim 1, characterized in that: A sealing ring (11) adapted to the outer diameter of the mold (6) is installed on the inner wall of the cylinder (4).

4. The online drying device for a copper wire drawing machine according to claim 2, characterized in that: The sealing assembly comprises a sealing pad (12) installed at one end of the pressure cylinder (8) close to the mold (6), the sealing pad (12) is in contact with the end of the mold (6) away from the blowing box (1), and a transition hole (13) covering the blowing hole (7) is formed through the sealing pad (12), and the transition hole (13) is communicated with the inner cavity of the pipe (9).

5. The online drying device for a copper wire drawing machine according to claim 1, characterized in that: The cross-sectional diameter of the blowing hole (7) is 1 mm larger than the cross-sectional diameter of the copper wire (2).

6. The online drying device for a copper wire drawing machine according to claim 1, characterized in that: The pipe (9) comprises a metal bellows, and the inner diameter of the metal bellows is greater than the cross-sectional diameter of the copper wire (2).

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