Enameled wire drawing device
By using a liquid suction ring lubrication and annular groove heat dissipation fin design in the enameled wire drawing device, the problems of high friction coefficient and low heat dissipation efficiency of traditional drawing dies are solved, thereby improving the surface quality of enameled wire and the life of the die.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUAN JIAZHENG ELECTRICAL EQUIPMENT CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-17
AI Technical Summary
The high surface roughness of traditional wire drawing dies results in a high coefficient of friction between the enameled wire and the insulating varnish layer, generating localized high temperatures, causing varnish layer wear, and affecting surface quality and service life.
A wire drawing device for enameled wire was designed. The device uses a liquid suction ring to lubricate the enameled wire and uses heat dissipation fins in an annular groove and an annular shunt pipe in conjunction with an external fan to dissipate heat, thereby reducing the coefficient of friction and improving heat dissipation efficiency.
It effectively reduces the friction coefficient between the enameled wire and the drawing die, reduces local high temperatures, improves the surface quality and insulation performance of the enameled wire, extends its service life, and at the same time improves the heat dissipation efficiency of the drawing die and the stability of the equipment.
Smart Images

Figure CN224128249U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of enameled wire production equipment, specifically to an enameled wire drawing device. Background Technology
[0002] As a core category of winding wire, enameled wire requires key processes such as wire drawing, annealing, coating, and baking to be produced. Among these, the wire drawing process is the fundamental process that determines the accuracy of the conductor diameter and the surface quality. It requires the bare wire to be gradually reduced in diameter through multi-stage wire drawing dies.
[0003] During the wire drawing process, the enameled wire needs to be drawn through a drawing die. Traditional drawing dies have a high surface roughness and a high coefficient of friction with the insulating enamel layer. This can generate localized high temperatures during high-speed drawing, accelerating the wear of the enamel layer. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a wire drawing device for enameled wire.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: an enameled wire drawing device, comprising a processing table, a drawing die fixedly disposed above the processing table, the drawing die having a drawing hole, a slot and a cylindrical shell on the front side of the drawing die, a through hole in the middle part of the cylindrical shell, a liquid-absorbing ring through which the enameled wire passes on the inner wall of the through hole, a cavity inside the cylindrical shell, a plurality of diversion holes communicating with the cavity on the inner side of the cylindrical shell, and a material storage pipe at the top of the cylindrical shell;
[0008] The wire drawing die has an annular groove on its periphery, and heat dissipation fins are provided inside the annular groove. The outer ring of the wire drawing die has an annular diverter pipe, and the upper end of the annular diverter pipe has a connecting pipe. The inner ring of the annular diverter pipe has multiple air outlet pipes.
[0009] To facilitate assembly of the cylindrical shell, the present invention includes the following improvements: the rear end of the cylindrical shell is inserted into the interior of the slot, and the rear end of the cylindrical shell is provided with an annular positioning plate, which is fixed to the front side of the wire drawing die by screws.
[0010] Furthermore, an improvement of this utility model is that the top of the storage tube is provided with a top cover, which is fastened to the upper end of the storage tube and threadedly connected to the storage tube.
[0011] Furthermore, an improvement of this utility model is that the liquid-absorbing ring is made of sponge.
[0012] To facilitate assembly of the annular manifold, the present invention includes an improvement whereby a fixing frame is provided on one side of the annular manifold, and multiple support rods are provided around the fixing frame. The support rods are fixed to the rear side of the wire drawing die by screws.
[0013] Furthermore, an improvement of this utility model is that the storage tube is made of transparent plastic.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, the present invention provides a wire drawing device for enameled wire, which has the following advantages:
[0016] Lubrication advantages: Lubrication of the enameled wire via a liquid-absorbing ring effectively reduces the coefficient of friction between the wire and the drawing die. During high-speed drawing, this reduces localized high temperatures caused by friction, thus preventing rapid wear of the insulating enamel layer, improving the surface quality and insulation performance of the enameled wire, and extending its service life.
[0017] Heat dissipation advantages: The heat dissipation fins and annular distribution pipe within the annular groove, combined with the external fan design, significantly improve the heat dissipation efficiency of the wire drawing die. This effectively and promptly dissipates the heat generated during the wire drawing process, preventing damage to the enameled wire and the drawing die due to high temperatures. This ensures the stability and reliability of the wire drawing process, extends the service life of the drawing die, and reduces production costs. Attached Figure Description
[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;
[0020] Figure 3 This utility model Figure 1 The main view;
[0021] Figure 4 This is a schematic diagram of the installation structure of the liquid suction ring in this utility model;
[0022] In the diagram: 1. Processing table; 2. Wire drawing die; 3. Wire drawing hole; 4. Hole; 5. Cylindrical shell; 6. Through hole; 7. Material storage pipe; 8. Top cover; 9. Annular positioning plate; 10. Liquid suction ring; 11. Cavity; 12. Diverter hole; 13. Annular groove; 14. Heat dissipation fins; 15. Annular diverter pipe; 16. Fixing frame; 17. Support rod; 18. Air outlet pipe; 19. Adaptor pipe. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-4 This utility model discloses an enameled wire drawing device, including a processing table 1, a drawing die 2 fixedly arranged on the upper part of the processing table 1, a drawing hole 3 provided on the drawing die 2, a slot 4 and a cylindrical shell 5 provided on the front side of the drawing die 2, a through hole 6 provided in the middle part of the cylindrical shell 5, a liquid absorption ring 10 through which the enameled wire passes on the inner wall of the through hole 6, a cavity 11 provided inside the cylindrical shell 5, a plurality of diversion holes 12 communicating with the cavity 11 provided on the inner side of the cylindrical shell 5, and a material storage pipe 7 provided on the top of the cylindrical shell 5.
[0025] The wire drawing die 2 has an annular groove 13 on its periphery, and heat dissipation fins 14 are provided inside the annular groove 13. The outer ring of the wire drawing die 2 is provided with an annular diversion pipe 15, and the upper end of the annular diversion pipe 15 is provided with a connecting pipe 19. The inner ring of the annular diversion pipe 15 is provided with multiple air outlet pipes 18.
[0026] The top of the storage tube 7 is provided with a top cover 8, which is fastened to the upper end of the storage tube 7 and threadedly connected to the storage tube 7.
[0027] The liquid-absorbing ring 10 is made of sponge.
[0028] The storage tube 7 is made of transparent plastic.
[0029] Lubrication Principle: When the enameled wire is drawn, it first passes through the suction ring 10 located on the inner wall of the through hole 6 of the cylindrical shell 5, and then passes through the drawing hole 3 on the drawing die 2. The storage tube 7 stores lubricating oil, which flows into the cavity 11 inside the cylindrical shell 5. Because the suction ring 10 is made of sponge material, it has excellent liquid absorption properties, and the lubricating oil in the cavity 11 is absorbed by the suction ring 10 through the diversion hole 12. When the enameled wire passes through the suction ring 10, the suction ring 10 can evenly coat the outer wall of the enameled wire with lubricating oil. In this way, when the enameled wire passes through the drawing hole 3, the lubricating oil can effectively reduce the coefficient of friction between the enameled wire and the inner surface of the drawing die 2, reducing frictional resistance.
[0030] Drawing principle: After the lubrication process is completed, the enameled wire passes through the drawing hole 3. The drawing die 2 is fixed above the processing table 1. The enameled wire is gradually reduced in diameter through the drawing hole 3, thereby realizing the drawing operation of the enameled wire and ensuring that the enameled wire reaches the required diameter accuracy and surface quality.
[0031] Heat dissipation principle: During the wire drawing process, the wire drawing die 2 generates heat due to friction with the enameled wire. The annular groove 13 surrounds the periphery of the wire drawing die 2, and the heat dissipation fins 14 inside it increase the heat dissipation area, quickly dissipating the heat generated by the wire drawing die 2 and improving its heat dissipation efficiency. Simultaneously, the adapter pipe 19 at the upper end of the annular distribution pipe 15 is connected to an external fan. After the fan starts, air flows through the annular distribution pipe 15 and is blown out from multiple air outlet pipes 18 in the inner ring. The blown air acts on the heat dissipation fins 14, accelerating the airflow around the fins 14, further speeding up the heat dissipation and preventing accelerated wear of the enameled wire insulation layer due to localized high temperatures.
[0032] The rear end of the cylindrical shell 5 is inserted into the interior of the slot 4, and the rear end of the cylindrical shell 5 is provided with an annular positioning plate 9, which is fixed to the front side of the wire drawing die 2 by screws.
[0033] The rear end of the cylindrical shell 5 is inserted into the empty groove 4 on the front side of the wire drawing die 2, and the annular positioning plate 9 at its rear end is fixed to the front side of the wire drawing die 2 by screws. This design facilitates the assembly and disassembly of the cylindrical shell 5.
[0034] A fixing frame 16 is provided on one side of the annular diverter 15, and a plurality of support rods 17 are provided on the periphery of the fixing frame 16. The support rods 17 are fixed to the rear side of the wire drawing die 2 by screws.
[0035] The annular splitter tube 15 has a fixing bracket 16 on one side with multiple support rods 17 around its perimeter. These support rods 17 are fixed to the rear side of the wire drawing die 2 by screws, making it easy to install the annular splitter tube 15 on the wire drawing die 2.
[0036] The assembly design of the cylindrical shell 5 and the annular diverter pipe 15 is reasonable, and the use of screws for fixing makes it easy to install and disassemble the various components of the device. During equipment maintenance and repair, relevant components can be quickly replaced and repaired, improving equipment maintenance efficiency, reducing downtime, and contributing to increased production efficiency.
[0037] The top cover 8 of the storage pipe 7 is threadedly connected to the storage pipe 7, facilitating the addition and replenishment of lubricating oil. Meanwhile, the storage pipe 7 is made of transparent plastic, allowing operators to visually observe the remaining amount of lubricating oil inside and add it promptly, ensuring the normal operation of the lubrication process.
[0038] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A wire drawing device, comprising a processing table (1), wherein a wire drawing die (2) is fixedly disposed above the processing table (1), and the wire drawing die (2) is provided with a wire drawing hole (3), characterized in that: The wire drawing die (2) has a slot (4) and a cylindrical shell (5) on its front side. The middle part of the cylindrical shell (5) has a through hole (6). The inner wall of the through hole (6) has a liquid-absorbing ring (10) through which the enameled wire passes. The inside of the cylindrical shell (5) has a cavity (11). The inner side of the cylindrical shell (5) has a plurality of diversion holes (12) communicating with the cavity (11). The top of the cylindrical shell (5) has a storage pipe (7). The wire drawing die (2) has an annular groove (13) on its periphery, and heat dissipation fins (14) are provided inside the annular groove (13). The outer ring of the wire drawing die (2) is provided with an annular diversion pipe (15), and the upper end of the annular diversion pipe (15) is provided with a transfer pipe (19). The inner ring of the annular diversion pipe (15) is provided with multiple air outlet pipes (18).
2. An enameled wire drawing device according to claim 1, characterized in that: The rear end of the cylindrical shell (5) is inserted into the interior of the slot (4), and the rear end of the cylindrical shell (5) is provided with an annular positioning plate (9), which is fixed to the front side of the wire drawing die (2) by screws.
3. An enameled wire drawing device according to claim 2, characterized in that: The top of the storage tube (7) is provided with a top cover (8), which is fastened to the upper end of the storage tube (7) and threadedly connected to the storage tube (7).
4. The enameled wire drawing device according to claim 3, characterized in that: The liquid-absorbing ring (10) is made of sponge.
5. An enameled wire drawing device according to claim 4, characterized in that: A fixing frame (16) is provided on one side of the annular diverter (15), and a plurality of support rods (17) are provided on the periphery of the fixing frame (16). The support rods (17) are fixed to the rear side of the wire drawing die (2) by screws.
6. An enameled wire drawing device according to claim 5, characterized in that: The storage tube (7) is made of transparent plastic.