Triangular copper wire drawing device

Abstract

The utility model relates to drawing device technical field especially relates to a kind of triangular copper wire drawing device, including pretreatment mechanism, anti-twist mechanism and triangular die, pretreatment mechanism includes roller and rotating wheel, the bottom of roller is provided with triangular groove, anti-twist mechanism includes rotating wheel, the outer periphery of rotating wheel is provided with helical groove, the cross section of helical groove is inverted triangle, first drawing hole is throughly provided on triangular die, the cross section of first drawing hole is triangle.The utility model can preliminary triangular cross section forming to copper wire before drawing by pretreatment mechanism, anti-twist mechanism uses rotating wheel with inverted triangle cross section helical groove, it plays guiding and limiting effect when copper wire passes, through the double effect of pretreatment and anti-twist, reduce copper wire in the metal flow uneven, stress concentration and other problems in drawing process, to reduce the generation of surface crack, dimensional deviation and other defects, significantly improve yield and product performance.

Description

Technical Field

[0001] This utility model relates to the field of drawing device technology, and in particular to a triangular copper wire drawing device. Background Technology

[0002] Copper wire, as an important conductor material widely used in power transmission and electronic equipment, has its mechanical and electrical properties directly affected by its processing technology. In practical applications, the cross-sectional shape of copper wire varies depending on the specific requirements. Triangular copper wire, due to its unique geometric structure, shows promising application prospects in certain electrical connectors, conductive contacts, and special winding structures. However, compared to conventional round copper wire, the drawing process of triangular copper wire is more difficult, especially in ensuring cross-sectional shape accuracy, surface quality, and preventing wire twisting, which presents numerous technical challenges.

[0003] Traditional copper wire drawing processes primarily employ circular dies for step-by-step drawing, a mature technology with simple equipment. However, for drawing copper wires with irregular cross-sections such as triangles, traditional processes struggle to meet the requirements for shape accuracy and consistency. Furthermore, during the drawing process, uneven metal flow and asymmetrical stress can easily cause the copper wire to twist, resulting in irregular shapes, large dimensional deviations, and even surface cracks in the finished product, affecting product performance and yield. Utility Model Content

[0004] This invention aims to at least solve the technical problems existing in the prior art. To this end, this invention proposes a triangular copper wire drawing device, which improves production efficiency and the quality of the drawn copper wire.

[0005] A triangular copper wire drawing device according to some embodiments of the present invention includes a pretreatment mechanism, an anti-torsion mechanism, and a triangular mold. The pretreatment mechanism, the anti-torsion mechanism, and the triangular mold are arranged sequentially. The pretreatment mechanism includes a rolling wheel and a rotating wheel. The rolling wheel is located at the top of the rotating wheel, and a triangular groove is provided at the bottom of the rolling wheel. The anti-torsion mechanism includes a rotating wheel, and a spiral groove is provided on the outer periphery of the rotating wheel. The cross-section of the spiral groove is an inverted triangle. A first drawing hole is provided through the triangular mold, and the cross-section of the first drawing hole is triangular.

[0006] A triangular copper wire drawing device according to some embodiments of the present invention has at least the following beneficial effects:

[0007] This invention utilizes a pre-treatment mechanism with a triangular groove at the bottom of the rolling wheel to pre-shape the copper wire into a triangular cross-section before drawing, making it closer to the final target shape. This improves the stability and accuracy of the cross-sectional shape during subsequent drawing. The anti-torsion mechanism uses a rotating wheel with a spiral groove on the inverted triangular cross-section, which guides and limits the copper wire as it passes through, effectively suppressing wire torsion caused by uneven force during drawing. Through the dual effects of pre-treatment and anti-torsion, it reduces problems such as uneven metal flow and stress concentration during the drawing process, thereby reducing defects such as surface cracks and dimensional deviations, and significantly improving yield and product performance.

[0008] According to some embodiments of the present invention, a triangular copper wire drawing device is provided at the front and rear ends of the triangular mold, respectively, and the first inlet and the first outlet are both conical.

[0009] A triangular copper wire drawing device according to some embodiments of the present invention includes a sizing die, wherein a second drawing hole is provided through the sizing die, and the cross-section of the second drawing hole is triangular.

[0010] According to some embodiments of the present invention, a triangular copper wire drawing device is provided at the front and rear ends of the sizing die, respectively, and the second inlet and the second outlet are both conical.

[0011] According to some embodiments of the present invention, a triangular copper wire drawing device is provided on the rotating wheel, wherein the rotating wheel is provided with an inlet groove and an outlet groove, the inlet groove and the outlet groove are respectively connected to the two ends of the spiral groove, and the inlet groove and the outlet groove are both located at the top or bottom of the rotating wheel.

[0012] According to some embodiments of the present invention, a triangular copper wire drawing device is provided, wherein two pretreatment mechanisms are provided, the two pretreatment mechanisms, the anti-torsion mechanism and the triangular mold are arranged in sequence, and both pretreatment mechanisms include the rolling wheel and the rotating wheel.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0015] Figure 1 This is a front view of an embodiment of the present utility model.

[0016] Figure 2 This is a schematic diagram of the anti-torsion mechanism according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of the pretreatment mechanism according to an embodiment of the present invention.

[0018] Figure 4 This is a cross-sectional view of the triangular mold according to an embodiment of the present invention.

[0019] Figure 5 This is a cross-sectional view of the sizing mold according to an embodiment of the present invention.

[0020] Reference numerals: 1. Pretreatment mechanism; 2. Anti-torsion mechanism; 3. Triangular mold; 4. Rolling wheel; 5. Rotating wheel; 6. Triangular groove; 7. Rotating wheel; 8. Spiral groove; 9. First drawing hole; 10. First inlet; 11. First outlet; 12. Sizing mold; 13. Second drawing hole; 14. Second inlet; 15. Second outlet; 16. Inlet groove; 17. Outlet groove. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] like Figures 1-5 As shown, this embodiment of the present invention provides a triangular copper wire pulling device.

[0026] A triangular copper wire drawing device includes a pretreatment mechanism 1, an anti-torsion mechanism 2, and a triangular mold 3. The pretreatment mechanism 1, the anti-torsion mechanism 2, and the triangular mold 3 are arranged sequentially. The pretreatment mechanism 1 includes a rolling wheel 4 and a rotating wheel 5. The rolling wheel 4 is located at the top of the rotating wheel 5, and a triangular groove 6 is provided at the bottom of the rolling wheel 4. The anti-torsion mechanism 2 includes a rotating wheel 7, and a spiral groove 8 is provided on the outer periphery of the rotating wheel 7. The cross-section of the spiral groove 8 is an inverted triangle. A first drawing hole 9 is provided through the triangular mold 3, and the cross-section of the first drawing hole 9 is triangular.

[0027] This invention utilizes a triangular groove 6 at the bottom of the rolling wheel 4 in the pretreatment mechanism 1 to pre-shape the copper wire into a triangular cross-section before drawing, making it closer to the final target shape and thus improving the stability and accuracy of the cross-sectional shape during subsequent drawing. The anti-torsion mechanism 2 employs a rotating wheel 7 with a spiral groove 8 on its inverted triangular cross-section, which guides and limits the copper wire as it passes through, effectively suppressing wire torsion caused by uneven force during drawing. Through the combined action of the pretreatment mechanism 1 and the anti-torsion mechanism 2, problems such as uneven metal flow and stress concentration during the drawing process are reduced, thereby reducing the generation of defects such as surface cracks and dimensional deviations, and significantly improving yield and product performance.

[0028] The triangular copper wire drawing device described in this embodiment has a first inlet 10 and a first outlet 11 at its front and rear ends, respectively, both of which are conical. Specifically, the conical first inlet 10 and first outlet 11 can effectively guide the copper wire into and out of the triangular mold 3, improving the smoothness of the drawing process, reducing the risk of surface damage to the copper wire, and improving the drawing quality.

[0029] This embodiment describes a triangular copper wire drawing device, including a sizing mold 12. A second drawing hole 13 is provided through the sizing mold 12, and the cross-section of the second drawing hole 13 is triangular. Specifically, the sizing mold 12 performs a secondary shaping process on the initially formed triangular copper wire, further improving the accuracy of the copper wire's cross-sectional dimensions and surface finish, ensuring the dimensional consistency and mechanical performance stability of the final product.

[0030] The triangular copper wire drawing device described in this embodiment has a second inlet 14 and a second outlet 15 respectively provided at the front and rear ends of the sizing die 12. Both the second inlet 14 and the second outlet 15 are conical. Specifically, the conical second inlet 14 and the second outlet 15 help the copper wire to smoothly enter and exit the sizing die 12, reduce stress concentration and wear during the drawing process, and improve the sizing effect and the service life of the die.

[0031] This embodiment describes a triangular copper wire drawing device. The rotating wheel 7 is equipped with an inlet groove 16 and an outlet groove 17, which are respectively connected to both ends of the spiral groove 8. Both the inlet groove 16 and the outlet groove 17 are located at the top or bottom of the rotating wheel 7. Specifically, the inlet groove 16 and the outlet groove 17 are located at the same end of the rotating wheel 7, allowing the pretreatment mechanism 1, the triangular mold 3, and the sizing mold 12 to be located on the same horizontal line.

[0032] This embodiment describes a triangular copper wire drawing device. Two pretreatment mechanisms 1 are provided, and the two pretreatment mechanisms 1, the anti-torsion mechanism 2, and the triangular mold 3 are arranged sequentially. Each pretreatment mechanism 1 includes a rolling roller 4 and a rotating roller 5. Specifically, the two pretreatment mechanisms 1 perform multi-stage pre-forming treatment on the copper wire, gradually approaching the target triangular cross-sectional shape. This significantly improves the consistency of the initial state of the copper wire entering the subsequent anti-torsion mechanism 2 and triangular mold 3 stages, thereby improving the forming accuracy and yield of the final product. In some embodiments, the cross-sectional area after each pretreatment mechanism 1 can be reduced by 6%-10%.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A triangular copper wire drawing device, characterized in that: The device includes a pretreatment mechanism, an anti-torsion mechanism, and a triangular mold, which are arranged sequentially. The pretreatment mechanism includes a rolling wheel and a rotating wheel. The rolling wheel is located on top of the rotating wheel, and a triangular groove is provided at the bottom of the rolling wheel. The anti-torsion mechanism includes a rotating wheel, and a spiral groove is provided on the outer periphery of the rotating wheel. The cross-section of the spiral groove is an inverted triangle. A first drawing hole is provided through the triangular mold, and the cross-section of the first drawing hole is triangular.

2. The triangular copper wire drawing device according to claim 1, characterized in that: The triangular mold has a first inlet and a first outlet at its front and rear ends, respectively, and both the first inlet and the first outlet are conical.

3. The triangular copper wire drawing device according to claim 1, characterized in that: It includes a sizing die, on which a second drawing hole is provided, the cross-section of which is triangular.

4. The triangular copper wire drawing device according to claim 3, characterized in that: The sizing mold has a second inlet and a second outlet at its front and rear ends, respectively, and both the second inlet and the second outlet are conical.

5. The triangular copper wire drawing device according to claim 1, characterized in that: The rotating wheel is provided with an inlet groove and an outlet groove, which are respectively connected to the two ends of the spiral groove. The inlet groove and the outlet groove are both located at the top or bottom of the rotating wheel.

6. The triangular copper wire drawing device according to claim 1, characterized in that: The pretreatment mechanism is provided in two parts, and the two pretreatment mechanisms, the anti-torsion mechanism and the triangular mold are arranged in sequence. Both pretreatment mechanisms include the rolling wheel and the rotating wheel.

Images