Copper wire drawing die convenient to lubricate

Abstract

The utility model discloses a copper conductor drawing die convenient to lubricate, which comprises a die main body, a lubricating hole, a compression hole, a sizing hole and a liquid inlet hole, the lubricating hole, the compression hole and the sizing hole which are sequentially connected are arranged in the die main body, and the lubricating hole, the compression hole and the sizing hole are positioned on the same central axis. The lubricating hole and the sizing hole are opened in the two opposite side walls of the die body respectively, the inner diameter of the compression hole is gradually decreased from the lubricating hole end to the sizing hole end, the inner diameter of the lubricating hole is equal to the maximum inner diameter of the compression hole, the inner diameter of the sizing hole is equal to the minimum inner diameter of the compression hole, a liquid inlet hole is formed in the side wall of the lubricating hole, and a liquid outlet hole is formed in the side wall of the liquid inlet hole. And the liquid inlet hole is connected with a liquid supply device for supplying lubricating liquid through a pipeline. According to the utility model, the lubricating hole is formed in the die main body, and the liquid inlet hole is matched, so that the copper wire can be in full contact with lubricating liquid before being drawn, the copper wire can be fully lubricated when being drawn, and the product quality of the copper wire is ensured.

Description

[Technical field]

[0001] The utility model relates to the technical field of copper material processing, in particular to the technical field of copper wire drawing dies. [Background technology]

[0002] In the production process of copper conductors, a drawing die is required to insert a copper wire with a relatively thick diameter into the drawing die. After pulling out, fine copper wire with a diameter that meets the requirements or special copper wire with a cross-sectional structure that meets the requirements is obtained to meet the needs of use.

[0003] The drawing production of copper wire can be carried out in a cold state, that is, cold drawing. In order to reduce the friction between the copper wire surface and the inner wall of the drawing die head and the drawing resistance, lubricating liquid can be added during the drawing process to reduce wear problems and extend the life of the drawing die head. In the prior art, the lubricating liquid is generally sprayed onto the copper wire through a nozzle, but it is difficult to lubricate the circumference of the copper wire comprehensively, resulting in partial damage to the wire during drawing, affecting the processing quality of the copper wire.

[0004] The existing patent CN219664753U discloses an energy-saving fine copper wire drawing die head, which uses oil cotton to apply lubricating liquid to the copper wire. However, after long-term use, the oil cotton will be worn, resulting in the oil cotton being unable to contact the copper wire, and ultimately resulting in the oil cotton being unable to oil the copper wire or incompletely oiling it, which will reduce the lubrication effect and affect the quality of the product. [Contents of the utility model]

[0005] The utility model aims to solve the problems in the prior art and proposes a copper wire drawing die which is easy to lubricate, so that the copper wire can be fully in contact with oil before drawing, thereby ensuring the lubrication effect during drawing and the quality of the product.

[0006] To achieve the above-mentioned purpose, the utility model proposes a copper wire drawing die that is easy to lubricate, including a die main body, a lubrication hole, a compression hole, a sizing hole, and a liquid inlet hole. The die main body is provided with a lubrication hole, a compression hole, and a sizing hole that are connected in sequence. The lubrication hole, the compression hole, and the sizing hole are located on the same central axis. The lubrication hole and the sizing hole are opened on two opposite side walls of the die main body respectively. The inner diameter of the compression hole gradually decreases from the lubrication hole end to the sizing hole end. The inner diameter of the lubrication hole is equal to the maximum inner diameter of the compression hole, and the inner diameter of the sizing hole is equal to the minimum inner diameter of the compression hole. A liquid inlet hole is provided on the side wall of the lubrication hole. The liquid inlet hole is connected to a liquid supply device for supplying lubricating liquid through a pipeline, and the liquid outlet end of the liquid inlet hole is located at the end of the lubrication hole connected to the compression hole.

[0007] Preferably, the inner diameter of the lubrication hole is 1.5-2 times the initial outer diameter of the copper wire, and the length of the lubrication hole is 5 cm-20 cm.

[0008] Preferably, the end of the lubrication hole away from the compression hole is provided with a first bell mouth expanding outwards, and the end of the sizing hole away from the compression hole is provided with a second bell mouth expanding outwards.

[0009] Preferably, an internal thread is provided on the inner wall of the liquid inlet hole, and a joint is screwed on the liquid inlet hole, and the joint is connected to the liquid supply device through a hose.

[0010] Preferably, a liquid receiving trough is provided below the mold body, a liquid outlet hole is provided at the bottom of the oil receiving trough, and a plurality of connecting blocks are provided at the bottom of the mold body, and the connecting blocks are fixed on the inner bottom wall of the liquid receiving trough.

[0011] The beneficial effects of the utility model are as follows: the utility model arranges the lubrication hole inside the mold body, and cooperates with the liquid inlet hole to enable the copper wire to fully contact with the lubricating liquid before being drawn, so that the copper wire can be fully lubricated when being drawn, thereby ensuring the product quality of the copper wire; the arrangement of the liquid receiving groove enables the lubricating liquid to be effectively recovered, which is convenient for the reuse of the lubricating liquid.

[0012] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0013] Figure 1 It is a front view of the copper wire drawing die which is easy to lubricate according to the utility model.

[0014] In the figure: 1-mold body, 2-liquid receiving groove, 10-connecting block, 11-lubricating hole, 12-compression hole, 13-sizing hole, 14-first bell mouth, 15-second bell mouth, 16-liquid inlet hole, 17-connector, 20-liquid outlet hole. [Specific implementation method]

[0015] Embodiment 1:

[0016] See also Figure 1 The utility model is a copper wire drawing die that is easy to lubricate, comprising a die main body 1, a lubrication hole 11, a compression hole 12, a sizing hole 13, and a liquid inlet hole 16. The die main body 1 is provided with a lubrication hole 11, a compression hole 12, and a sizing hole 13 that are connected in sequence. The lubrication hole 11, the compression hole 12, and the sizing hole 13 are located on the same central axis. The lubrication hole 11 and the sizing hole 13 are opened on two opposite side walls of the die main body 1 respectively. The inner diameter of the compression hole 12 gradually decreases from the end of the lubrication hole 11 to the end of the sizing hole 13. The inner diameter of the lubrication hole 11 is equal to the maximum inner diameter of the compression hole 12, and the inner diameter of the sizing hole 13 is equal to the minimum inner diameter of the compression hole 12. A liquid inlet hole 16 is provided on the side wall of the lubrication hole 11. The liquid inlet hole 16 is connected to a liquid supply device for supplying lubricating liquid through a pipeline, and the liquid outlet end of the liquid inlet hole 16 is located at the end of the lubrication hole 11 connected to the compression hole 12.

[0017] In order to ensure that the portion of the lubrication hole 11 close to the compression hole 12 can be filled with lubricating liquid, the inner diameter of the lubrication hole 11 is 1.5-2 times the initial outer diameter of the copper wire, and the length of the lubrication hole 11 is 5 cm-20 cm.

[0018] In order to prevent the copper wire from being scratched at the entry and exit ends of the mold body 1, the end of the lubrication hole 11 away from the compression hole 12 is provided with a first bell mouth 14 expanding outwards, and the end of the sizing hole 13 away from the compression hole 12 is provided with a second bell mouth 15 expanding outwards.

[0019] In order to make the liquid inlet hole 16 conveniently connected to the liquid supply device, an internal thread is provided on the inner wall of the liquid inlet hole 16, and a connector 17 is screwed on the liquid inlet hole 16, and the connector 17 is connected to the liquid supply device through a hose.

[0020] Embodiment 2:

[0021] In order to recycle the lubricating liquid and facilitate its reuse, a liquid collecting tank 2 is provided below the mold body 1, a liquid outlet hole 20 is provided at the bottom of the oil collecting tank, and a plurality of connecting blocks 10 are provided at the bottom of the mold body 1, and the connecting blocks 10 are fixed on the inner bottom wall of the liquid collecting tank 2.

[0022] Working process of this utility model:

[0023] During the working process of the copper wire drawing die that is easy to lubricate of the utility model, when the copper wire is drawn, the liquid supply device passes the lubricating liquid into the lubricating hole 11 through the liquid inlet hole 16, and the liquid supply speed of the liquid supply device needs to meet the requirement that the part of the lubricating hole 11 close to the compression hole 12 is filled with the lubricating liquid, the copper wire is fully in contact with the lubricating liquid, most of the lubricating liquid leaves from the first bell mouth 14 of the lubricating hole 11, and a small amount of lubricating liquid enters the shaping hole 13 along with the copper wire and leaves from the second bell mouth 15, the copper wire can be fully lubricated during drawing and is not easily damaged, the lubricating liquid flowing out of the die main body 1 will fall into the liquid receiving tank 2 located below the die main body 1, and finally leave from the liquid outlet 20 on the liquid receiving tank 2, and the lubricating liquid flowing out from the liquid outlet 20 can be reused after filtering and other treatments.

[0024] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A copper wire drawing die that is easy to lubricate, characterized in that: The invention comprises a mold body (1), a lubrication hole (11), a compression hole (12), a sizing hole (13), and a liquid inlet hole (16). The mold body (1) is provided with a lubrication hole (11), a compression hole (12), and a sizing hole (13) connected in sequence. The lubrication hole (11), the compression hole (12), and the sizing hole (13) are located on the same central axis. The lubrication hole (11) and the sizing hole (13) are opened on two opposite side walls of the mold body (1), respectively. The compression hole (12) is provided on the side walls of the mold body (1). ) gradually decreases from the lubrication hole (11) end to the sizing hole (13) end, the inner diameter of the lubrication hole (11) is equal to the maximum inner diameter of the compression hole (12), and the inner diameter of the sizing hole (13) is equal to the minimum inner diameter of the compression hole (12), a liquid inlet hole (16) is provided on the side wall of the lubrication hole (11), the liquid inlet hole (16) is connected to a liquid supply device for supplying lubricating liquid through a pipeline, and the liquid outlet end of the liquid inlet hole (16) is located at the end of the lubrication hole (11) connected to the compression hole (12).

2. The copper wire drawing die that facilitates lubrication as claimed in claim 1, characterized in that: The inner diameter of the lubrication hole (11) is 1.5-2 times the initial outer diameter of the copper wire, and the length of the lubrication hole (11) is 5 cm-20 cm.

3. The copper wire drawing die that facilitates lubrication as claimed in claim 1, characterized in that: The end of the lubrication hole (11) away from the compression hole (12) is provided with a first bell mouth (14) expanding outwards, and the end of the sizing hole (13) away from the compression hole (12) is provided with a second bell mouth (15) expanding outwards.

4. The copper wire drawing die that facilitates lubrication as claimed in claim 1, characterized in that: An internal thread is provided on the inner wall of the liquid inlet hole (16), and a joint (17) is screwed onto the liquid inlet hole (16), and the joint (17) is connected to the liquid supply device through a hose.

5. The copper wire drawing die that facilitates lubrication as claimed in claim 1, characterized in that: A liquid receiving tank (2) is provided below the mold body (1), a liquid outlet hole (20) is provided at the bottom of the oil receiving tank, and a plurality of connecting blocks (10) are provided at the bottom of the mold body (1), and the connecting blocks (10) are fixed on the inner bottom wall of the liquid receiving tank (2).

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