Copper wire drawing equipment convenient for die penetration

Abstract

The invention provides copper wire drawing equipment convenient for die penetration, which belongs to the technical field of wire drawing equipment and comprises a pay-off wheel, a take-up wheel and a drawing mechanism. The drawing mechanism comprises a cone pulley, a die bracket and a plurality of wire drawing dies, the diameter of a wire drawing hole of each wire drawing die is gradually reduced in the copper wire conveying direction, a conical extrusion hole and a conical extrusion plug are sequentially arranged on the side, facing the wire incoming direction, of the wire drawing hole, a wire clamping hole is formed in the center of the conical extrusion plug, and the wire clamping hole is communicated with the conical extrusion hole. When the conical extrusion plug gets close to the wire drawing hole, the conical extrusion plug is extruded by the conical extrusion hole, the diameter of the wire clamping hole is reduced, the copper wire is clamped and pushed into the wire drawing hole, in the pushing process, the head of the copper wire is clamped and supported by the conical extrusion plug, the straightness of the copper wire can be maintained, the head of the copper wire is prevented from being bent or broken, and the die penetrating efficiency of the copper wire is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wire drawing equipment, and in particular relates to a copper wire drawing equipment which is convenient for passing through a mold. Background Art

[0002] The production process of copper wire drawing mainly includes: mechanical rough drawing, semi-finished product inspection, semi-finished product fine drawing, finished product inspection, packaging and warehousing. Among them, the semi-finished product fine drawing process is mainly to further stretch the already thinned copper wire. Therefore, the semi-finished product fine drawing process mainly uses a higher precision and stability micro-drawing machine for wire drawing.

[0003] During the fine drawing process of the semi-finished product, the wire diameter of the copper wire has been thinned by the rough drawing process, which means that the copper wire at this time does not have enough supporting force to maintain its own straightness. In addition, when passing through the die, the copper wire is passed into a drawing die with a hole diameter smaller than the diameter of the copper wire. Therefore, when pushing through the die, the head of the copper wire is prone to bending or even breaking, making the die passing process more difficult. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a copper wire drawing device that is easy to pass through the mold, which at least partially solves the above problems.

[0005] The technical solution adopted by the present invention is as follows: The present invention proposes a copper wire drawing device that is convenient for threading a mold, comprising a pay-off wheel and a take-up wheel, wherein a drawing mechanism for drawing the copper wire is provided between the pay-off wheel and the take-up wheel, and the drawing mechanism comprises: Two parallel tower wheels, the copper wire between the pay-off wheel and the take-up wheel is wound step by step on the two tower wheels to form multiple parallel wire drawing paths; A die bracket is arranged between the two step wheels, and the die bracket is provided with a number of drawing dies adapted to the drawing paths. Multiple drawing paths pass through the plurality of drawing dies one by one, and the diameters of the drawing holes of the drawing dies decrease step by step along the direction of copper wire feeding, and the copper wire is stretched step by step by the plurality of drawing dies. Among them, the wire drawing hole is provided with a conical extrusion hole and a conical guide hole in sequence on the side facing the wire incoming direction, and a conical extrusion plug adapted to it is provided in the conical extrusion hole, and a wire clamping hole is opened in the center of the conical extrusion plug. When the conical extrusion plug approaches the wire drawing hole, the conical extrusion plug is squeezed by the conical extrusion hole, so that the diameter of the wire clamping hole is reduced and the copper wire is clamped and pushed into the wire drawing hole.

[0006] Furthermore, a wire guide hopper is provided in the tapered guide hole, and the wire guide hopper is configured to be movable along the axial direction of the wire drawing die and to push the tapered extrusion plug along the tapered extrusion hole toward the wire drawing hole.

[0007] Furthermore, a sealing hoop is provided at one end of the wire drawing die close to the wire guide funnel, and a limiting flange is provided at the enlarged end of the wire guide funnel. The limiting flange slides in the sealing hoop, and the sealing hoop limits the wire guide funnel.

[0008] Furthermore, the narrowed end of the lead funnel is sealed and fixed to the conical extrusion plug.

[0009] Furthermore, a water inlet channel is provided between the wire guide bucket and the conical guide hole, and a water inlet pipe for conveying coolant into the water inlet channel is provided on one side of the sealing hoop, and a plurality of water spray holes are provided on the conical extrusion plug, one end of the water spray hole is connected to the water inlet channel, and the other end of the water spray hole extends to the narrowed end face of the conical extrusion plug and is connected to the conical extrusion hole, so that the water spray hole can spray coolant toward the drawing hole.

[0010] Furthermore, the inner diameter of the water spray hole is 0.5-0.8 mm.

[0011] Furthermore, a plurality of springs are provided between the limiting flange and the drawing die, and elastic pressure is applied to the limiting flange by the springs, so that the limiting flange fits and seals with the inner wall of the sealing hoop.

[0012] Furthermore, a rubber sealing gasket is provided on the inner wall of the sealing hoop.

[0013] Furthermore, a meter wheel for detecting the length of the wire being paid out is provided between the pay-off wheel and the drawing mechanism, and the copper wire led out from the pay-off wheel passes through the meter wheel.

[0014] Furthermore, a guide wheel and a wire arrangement wheel are provided between the take-up wheel and the pulling mechanism. The copper wire led out of the pulling mechanism passes through the guide wheel and is introduced into the wire arrangement wheel. The wire arrangement wheel is configured to be able to move back and forth along the axial direction of the take-up wheel so that the copper wire is evenly wound on the take-up wheel.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. By arranging a tapered extrusion hole and a tapered extrusion plug on the side of the drawing hole facing the wire direction, when the tapered extrusion plug approaches the drawing hole (that is, the tapered extrusion plug moves toward the narrowed end of the tapered extrusion hole), the tapered extrusion plug is squeezed by the tapered extrusion hole, so that the diameter of the wire clamping hole is reduced and the copper wire is clamped and pushed into the drawing hole. During the pushing process, the head of the copper wire is clamped and supported by the tapered extrusion plug, which can maintain the straightness of the copper wire, avoid bending or breaking of the copper wire head, and improve the mold penetration efficiency of the copper wire.

[0016] 2. By setting a water spray hole on the conical extrusion plug to spray coolant toward the drawing hole, the coolant is sprayed from the water spray hole to the drawing hole. While playing a cooling and lubricating role, the impact force of the spray is used to flush the metal chips generated by the wire drawing. The coolant carries the metal debris and is discharged through the gap between the wire clamping hole and the copper wire, preventing the metal debris from being dragged into the drawing hole by the copper wire, thereby reducing the probability of wire breakage during the wire drawing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a copper wire drawing device that facilitates die threading, as proposed in an embodiment of the present invention; Figure 2 A schematic structural diagram of a drawing mechanism in a copper wire drawing device that facilitates die threading, as proposed in an embodiment of the present invention; Figure 3 A schematic diagram of the position of a drawing die installed on a die bracket in a copper wire drawing device for facilitating die threading proposed in an embodiment of the present invention; Figure 4 A schematic structural diagram of a wire drawing die in a copper wire drawing device that facilitates die threading, as proposed in an embodiment of the present invention; Figure 5 A cross-sectional view of a drawing die in a copper wire drawing device that facilitates die threading, as proposed in an embodiment of the present invention; Figure 6 A schematic diagram of the structural disassembly of a wire drawing die in a copper wire drawing device that facilitates die threading, as proposed in an embodiment of the present invention; Figure 7 A schematic diagram of a copper wire drawing device for facilitating die threading proposed in an embodiment of the present invention showing a state where the wire drawing die is not threaded; Figure 8 A schematic diagram of a copper wire inserted into a wire clamping hole in a copper wire drawing device that facilitates die threading, as proposed in an embodiment of the present invention; Figure 9 A schematic diagram of a copper wire drawing device for facilitating die threading proposed in an embodiment of the present invention showing a state in which a conical extrusion plug clamps and pushes the copper wire; Figure 10 A schematic diagram of a copper wire being released by a tapered extrusion plug in a copper wire drawing device that facilitates die threading proposed in an embodiment of the present invention.

[0018] Among them, 1. Pay-off wheel; 11. Metering wheel; 2. Take-up wheel; 21. Guide wheel; 22. Wire arrangement wheel; 3. Tower pulley; 4. Die bracket; 5. Wire drawing die; 501. Wire drawing hole; 502. Conical extrusion hole; 503. Conical guide hole; 504. Water inlet channel; 51. Conical extrusion plug; 511. Wire clamping hole; 512. Water spray hole; 52. Wire guide bucket; 521. Limiting flange; 53. Sealing hoop; 54. Water inlet pipe; 55. Spring.

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0022] like Figure 1 As shown, the present invention proposes a copper wire drawing device that is convenient for threading a mold, comprising a pay-off wheel 1, a take-up wheel 2 and a drawing mechanism, wherein the drawing mechanism is arranged between the pay-off wheel 1 and the take-up wheel 2.

[0023] The pay-off reel 1 and the take-up reel 2 are both driven to rotate by external motors, and the motors are connected to the external control unit signal. The control unit controls the speed of each motor according to the set pay-off and take-up speeds.

[0024] A meter wheel 11 for detecting the length of the wire being paid out is provided between the pay-off wheel 1 and the drawing mechanism. The copper wire led out from the pay-off wheel 1 passes through the meter wheel 11. During the transportation of the copper wire, the meter wheel 11 is dragged and rotated by the copper wire, and the copper wire passing through the meter wheel 11 is not stretched. Therefore, the pay-off length can be calculated by the meter wheel 11, so as to facilitate the later calculation of the amount of consumables used.

[0025] A guide wheel 21 and a wire arranging wheel 22 are provided between the pulling mechanism of the take-up wheel 2. The copper wire led out of the pulling mechanism passes through the guide wheel 21 and is introduced into the wire arranging wheel 22. The wire arranging wheel 22 is connected to an external electric push rod. The reciprocating push of the electric push rod enables the wire arranging wheel 22 to move back and forth along the axial direction of the take-up wheel 2. As the take-up wheel 2 rotates and winds, the copper wire can be evenly wound on the take-up wheel 2.

[0026] Combine Figure 2As shown, the drawing mechanism includes two tower wheels 3 whose axes are parallel to each other and a mold bracket 4 arranged between the two tower wheels 3. The tower wheels 3 are provided with wire grooves with gradually increasing diameters. The copper wire between the pay-off wheel 1 and the take-up wheel 2 is wound on the two tower wheels 3. During winding, the copper wire is wound from the outer periphery of the two tower wheels 3, and the winding path is: along the wire groove with a small diameter to the wire groove with a large diameter, it is wound step by step and alternately on the two tower wheels 3, so that a multi-strand wire drawing path is formed between the two tower wheels 3. Finally, the copper wire is introduced into the smallest wire groove of the tower wheel 3 on one side by the guide wheel 21, and after winding step by step, it is led out to the take-up wheel 2 from the largest wire groove of the tower wheel 3 on the other side.

[0027] Combine Figure 3 As shown, the die bracket 4 is provided with a number of drawing dies 5 that are adapted to the drawing paths, and the diameter of the drawing holes 501 of the drawing dies 5 decreases step by step along the copper wire conveying direction. Multiple strands of the drawing paths pass through multiple drawing dies 5 one by one, and the copper wire is stretched step by step by multiple drawing dies 5.

[0028] In this way, the copper wire raw material is clamped on the pay-out wheel 1, and is introduced into the meter wheel 11, the drawing mechanism, the guide wheel 21, the wire arrangement wheel 22 and the take-up wheel 2 in sequence. When the copper wire is introduced into the drawing mechanism, the copper wire is wound on the two tower wheels 3, and is wound step by step in the wire groove from the small diameter wire groove to the large diameter wire groove, so that multiple parallel wire drawing paths are formed between the two tower wheels 3. While winding, the multiple strands of copper wire are respectively inserted into the wire drawing dies 5 corresponding to the wire grooves at each level, and the diameter of the wire drawing hole 501 of the wire drawing die 5 decreases step by step along the copper wire conveying direction. As the tower wheel 3 is pulled, the pay-out wheel 1 rotates to pay out the wire, and the take-up wheel 2 rotates to take up the wire. The copper wire passes through multiple wire drawing dies 5 in sequence and is stretched step by step.

[0029] Combine Figure 5 and Figure 7 As shown, a conical extrusion hole 502 and a conical guide hole 503 are sequentially provided on the side of the wire drawing hole 501 facing the wire direction. A conical extrusion plug 51 adapted thereto is provided in the conical extrusion hole 502. A wire clamping hole 511 is provided at the center of the conical extrusion plug 51. The diameter of the wire clamping hole 511 is slightly larger than the diameter of the copper wire, so that the head of the copper wire that needs to pass through the mold can be smoothly inserted into the wire clamping hole 511. When the conical extrusion plug 51 approaches the wire drawing hole 501 (i.e., the conical extrusion plug 51 moves toward the narrow end of the conical extrusion hole 502), the conical extrusion plug 51 is squeezed by the conical extrusion hole 502, causing the diameter of the wire clamping hole 511 to shrink and clamp the copper wire and push it into the wire drawing hole 501 (e.g., Figure 8 and Figure 9 shown).

[0030] Thus, when the copper wire is passed through the mold, the head of the copper wire is inserted into the wire clamping hole 511, and the head of the copper wire is pushed until it abuts against the end of the wire drawing hole 501 (as shown in FIG. Figure 8As shown), the conical extrusion plug 51 is then pushed toward the wire drawing hole 501 (i.e., the conical extrusion plug 51 moves toward the narrowed end of the conical extrusion hole 502). At this time, the conical extrusion plug 51 is squeezed by the conical extrusion hole 502, causing the diameter of the wire clamping hole 511 to shrink and clamp the copper wire and push it into the wire drawing hole 501 (as shown). Figure 9 As shown), during the process of pushing the copper wire into the drawing hole 501, the head of the copper wire is clamped and supported by the conical extrusion plug 51, which can maintain the straightness of the copper wire, avoid bending or breaking of the copper wire head, and improve the copper wire's mold penetration efficiency.

[0031] It should be noted that the conical extrusion plugs 51 in wire drawing dies 5 of different specifications are also different. Specifically, the inner diameter of the wire clamping hole 511 of the conical extrusion plug 51 is larger than the diameter of the copper wire before passing through the wire drawing die 5.

[0032] In a specific embodiment, the inner diameter of the wire clamping hole 511 of the tapered extrusion plug 51 is 0.1-0.2 mm larger than the diameter of the copper wire before passing through the wire drawing die 5, so as to facilitate the insertion of the copper wire and the subsequent discharge of the coolant.

[0033] Furthermore, a wire guide bucket 52 is provided in the conical guide hole 503, and the enlarged end of the wire guide bucket 52 extends to the outside of the wire drawing die 5, and the narrowed end of the wire guide bucket 52 is connected to the conical extrusion plug 51. The wire guide bucket 52 is configured to be able to move axially along the wire drawing die 5. Therefore, the operator can push the conical extrusion plug 51 through the wire guide bucket 52, and make the conical extrusion plug 51 approach the wire drawing hole 501 along the conical extrusion hole 502 to complete the die insertion.

[0034] Combine Figure 4 and Figure 5 As shown, a sealing hoop 53 is provided at one end of the wire drawing die 5 close to the wire drawing funnel 52, and a limiting flange 521 is provided at the enlarged end of the wire drawing funnel 52. The limiting flange 521 slides in the sealing hoop 53, and the sealing hoop 53 limits the wire drawing funnel 52 to prevent the wire drawing funnel 52 from falling off. The narrowed end of the wire drawing funnel 52 is sealed and fixed to the conical extrusion plug 51, so that the wire drawing funnel 52 can not only push the conical extrusion plug 51 toward the wire drawing hole 501, but also pull the conical extrusion plug 51 to keep the conical extrusion plug 51 away from the wire drawing hole 501.

[0035] In this way, after the copper wire passes through the drawing hole 501, the conical extrusion plug 51 is pulled to the side away from the drawing hole 501 by the lead-in funnel 52, so that the conical extrusion plug 51 is reset. At this time, the conical extrusion plug 51 is elastically restored (such as Figure 10 As shown), accordingly, the inner diameter of the wire hole 511 is restored and the copper wire is no longer clamped, so that it can be used for the next mold insertion. Moreover, since the inner diameter of the wire hole 511 is larger than the diameter of the copper wire, the copper wire can pass through the wire hole 511 smoothly during the copper wire stretching process, avoiding friction between the copper wire and the wire hole 511.

[0036] Combine Figure 5 and Figure 7 As shown, a water inlet channel 504 is provided between the wire guide bucket 52 and the tapered guide hole 503, and a water inlet pipe 54 for conveying coolant into the water inlet channel 504 is provided on one side of the sealing ring 53. A plurality of water spray holes 512 are provided on the tapered extrusion plug 51, and one end of the water spray hole 512 is connected to the water inlet channel 504, and the other end of the water spray hole 512 extends to the narrowed end face of the tapered extrusion plug 51 and is connected to the tapered extrusion hole 502, so that the water spray hole 512 can spray coolant toward the drawing hole 501.

[0037] In a specific embodiment, the water inlet pipe 54 is connected to an external coolant delivery device through a pipeline.

[0038] In this way, after the wire threading is completed, the conical extrusion plug 51 is pulled to the side away from the wire drawing hole 501 by the wire guide 52, so that the conical extrusion plug 51 is reset. At this time, the conical extrusion plug 51 is no longer subjected to the extrusion force. Accordingly, the inner diameters of the wire clamping hole 511 and the water spray hole 512 are restored. Moreover, since the inner diameter of the wire clamping hole 511 is larger than the copper wire, a gap for the flow of coolant can be generated between the wire clamping hole 511 and the copper wire. During the wire drawing process, the external coolant delivery equipment delivers coolant to the water inlet channel 504 through the water inlet pipe 54. Under the action of the delivery pressure, the coolant is sprayed from the water spray hole 512 to the wire drawing hole 501. While playing a cooling and lubricating role, the impact force of the spray is used to flush the metal chips generated by the wire drawing. The coolant carries the metal chips and is discharged through the gap between the wire clamping hole 511 and the copper wire, preventing the metal chips from being dragged into the wire drawing hole 501 by the copper wire, thereby reducing the probability of wire breakage during the wire drawing process.

[0039] In a specific embodiment, the inner diameter of the water spray hole 512 is 0.5-0.8 mm, and an inner diameter of 0.8 mm is preferably used. The water spray hole 512 with a larger inner diameter can increase the delivery amount of the coolant and ensure the cooling effect on the drawing hole 501.

[0040] Combine Figure 7 As shown, a plurality of springs 55 are provided between the limiting flange 521 and the drawing die 5. The springs 55 apply elastic pressure to the limiting flange 521, so that the limiting flange 521 fits and seals against the inner wall of the sealing hoop 53, thereby preventing the coolant pressure in the water inlet channel 504 from being released at the connection between the limiting flange 521 and the sealing hoop 53, and maintaining the spray pressure of the water spray hole 512. At the same time, the spring 55 applies elastic thrust to the wire guide bucket 52 , so that the wire guide bucket 52 can pull the conical extrusion plug 51 to the side away from the wire drawing hole 501 .

[0041] Furthermore, a rubber sealing gasket is provided on the inner wall of the sealing hoop 53 , and the rubber sealing gasket is used to seal the connection between the limiting flange 521 and the sealing hoop 53 , thereby further improving the sealing effect.

[0042] The working principle of the present invention is as follows: the copper wire raw material is clamped on the pay-off wheel 1 and sequentially introduced into the meter wheel 11, the drawing mechanism, the guide wheel 21, the wire arrangement wheel 22 and the take-up wheel 2. When the copper wire is introduced into the drawing mechanism, it is wound on the two tower wheels 3 and gradually wound in the wire grooves from the smaller diameter to the larger diameter. Multiple parallel wire drawing paths are formed between the two tower wheels 3. While winding, the multiple strands of copper wire are respectively inserted into the wire drawing dies 5 corresponding to the wire grooves at each level, and the diameter of the wire drawing holes 501 of the wire drawing dies 5 decreases step by step along the copper wire feeding direction. As the tower wheels 3 are pulled, the pay-off wheel 1 rotates to pay off the wire, and the take-up wheel 2 rotates to take up the wire. The copper wire passes through multiple wire drawing dies 5 in sequence and is stretched step by step. When the copper wire is passed through the mold, the head of the copper wire is inserted into the wire clamping hole 511, and the head of the copper wire is pushed until it abuts against the end of the drawing hole 501 (as shown in FIG. Figure 8 As shown), the conical extrusion plug 51 is then pushed toward the wire drawing hole 501 by the wire guide hopper 52 (i.e., the conical extrusion plug 51 moves toward the narrowed end of the conical extrusion hole 502). At this time, the conical extrusion plug 51 is squeezed by the conical extrusion hole 502, causing the diameter of the wire clamping hole 511 to shrink and clamp the copper wire and push it into the wire drawing hole 501 (as shown). Figure 9 As shown in FIG5 ), during the process of pushing the copper wire into the drawing hole 501, the head of the copper wire is clamped and supported by the tapered extrusion plug 51, which can maintain the straightness of the copper wire, prevent the copper wire head from bending or breaking, and improve the copper wire's mold insertion efficiency; After the copper wire passes through the drawing hole 501, the conical extrusion plug 51 is pulled to the side away from the drawing hole 501 by the lead-in funnel 52, so that the conical extrusion plug 51 is reset. At this time, the conical extrusion plug 51 is elastically restored (such as Figure 10 As shown), accordingly, the inner diameter of the wire hole 511 is restored and no longer clamps the copper wire, so that it can be used for the next mold insertion. Moreover, since the inner diameter of the wire hole 511 is larger than the diameter of the copper wire, the copper wire can smoothly pass through the wire hole 511 during the copper wire stretching process, avoiding friction between the copper wire and the wire hole 511. During the wire drawing process, the external coolant delivery equipment delivers coolant to the water inlet channel 504 through the water inlet pipe 54. Under the action of the delivery pressure, the coolant is sprayed from the water spray hole 512 to the wire drawing hole 501. While playing a cooling and lubricating role, the impact force of the spray is used to flush the metal chips generated by the wire drawing. The coolant carries the metal chips and is discharged through the gap between the wire clamping hole 511 and the copper wire, preventing the metal chips from being dragged into the wire drawing hole 501 by the copper wire, thereby reducing the probability of wire breakage during the wire drawing process.

[0043] In summary of the above embodiments: by arranging a conical extrusion hole 502 and a conical extrusion plug 51 on the side of the wire drawing hole 501 facing the incoming wire direction, when the conical extrusion plug 51 approaches the wire drawing hole 501 (that is, the conical extrusion plug 51 moves toward the narrowed end of the conical extrusion hole 502), the conical extrusion plug 51 is squeezed by the conical extrusion hole 502, so that the diameter of the wire clamping hole 511 is reduced and the copper wire is clamped and pushed into the wire drawing hole 501. During the pushing process, the head of the copper wire is clamped and supported by the conical extrusion plug 51, which can maintain the straightness of the copper wire, avoid bending or breaking of the copper wire head, and improve the mold penetration efficiency of the copper wire.

[0044] By arranging a water spray hole 512 on the conical extrusion plug 51 to spray coolant toward the drawing hole 501, the coolant is sprayed from the water spray hole 512 to the drawing hole 501. While playing a cooling and lubricating role, the impact force of the spray is used to flush the metal chips generated by the wire drawing. The coolant carries the metal chips and is discharged through the gap between the wire clamping hole 511 and the copper wire, preventing the metal chips from being dragged into the drawing hole 501 by the copper wire, thereby reducing the probability of wire breakage during the wire drawing process.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A copper wire drawing device that is easy to wear through the mold, characterized in that: It comprises a pay-off wheel (1) and a take-up wheel (2), wherein a drawing mechanism for drawing the copper wire is provided between the pay-off wheel (1) and the take-up wheel (2), and the drawing mechanism comprises: Two tower wheels (3) whose axes are parallel to each other, the copper wire between the pay-off wheel (1) and the take-up wheel (2) is alternately wound on the two tower wheels (3) to form multiple parallel wire drawing paths; A die bracket (4) is arranged between the two step wheels (3), and a number of drawing dies (5) adapted to the drawing paths are provided on the die bracket (4), multiple drawing paths pass through the multiple drawing dies (5) one by one, and the diameters of the drawing holes (501) of the drawing dies (5) decrease step by step along the copper wire conveying direction, and the copper wire is stretched step by step by the multiple drawing dies (5); The wire drawing hole (501) is provided with a conical extrusion hole (502) and a conical guide hole (503) in sequence on the side facing the wire direction, a conical extrusion plug (51) adapted thereto is provided in the conical extrusion hole (502), a wire clamping hole (511) is provided at the center of the conical extrusion plug (51), and when the conical extrusion plug (51) approaches the wire drawing hole (501), the conical extrusion plug (51) is squeezed by the conical extrusion hole (502).

2. The copper wire drawing equipment for easy mold insertion according to claim 1 is characterized in that: A wire guide hopper (52) is provided in the conical guide hole (503), and the wire guide hopper (52) is configured to be movable along the axial direction of the wire drawing die (5) and to push the conical extrusion plug (51) along the conical extrusion hole (502) toward the wire drawing hole (501).

3. The copper wire drawing equipment for easy mold insertion according to claim 2 is characterized in that: A sealing hoop (53) is provided at one end of the wire drawing die (5) close to the wire guide funnel (52), and a limiting flange (521) is provided at the enlarged end of the wire guide funnel (52). The limiting flange (521) slides in the sealing hoop (53), and the sealing hoop (53) limits the wire guide funnel (52).

4. The copper wire drawing equipment for easy mold insertion according to claim 3 is characterized in that: The narrowed end of the lead funnel (52) is sealed and fixed to the conical extrusion plug (51).

5. The copper wire drawing equipment for easy mold insertion according to claim 3 is characterized in that: A water inlet channel (504) is provided between the wire guide bucket (52) and the tapered guide hole (503), and a water inlet pipe (54) for conveying coolant into the water inlet channel (504) is provided on one side of the sealing hoop (53). A plurality of water spray holes (512) are provided on the tapered extrusion plug (51), one end of the water spray hole (512) is communicated with the water inlet channel (504), and the other end of the water spray hole (512) extends to the narrowed end face of the tapered extrusion plug (51) and is communicated with the tapered extrusion hole (502), so that the water spray hole (512) can spray coolant toward the wire drawing hole (501).

6. The copper wire drawing equipment for easy mold insertion according to claim 5, characterized in that: The inner diameter of the water spray hole (512) is 0.5-0.8 mm.

7. The copper wire drawing equipment for easy mold insertion according to claim 3 is characterized in that: A plurality of springs (55) are provided between the limiting flange (521) and the wire drawing die (5), and elastic pressure is applied to the limiting flange (521) by the springs (55), so that the limiting flange (521) and the inner wall of the sealing hoop (53) are fitted and sealed.

8. The copper wire drawing equipment for easy mold insertion according to claim 3 is characterized in that: The inner wall of the sealing hoop (53) is provided with a rubber sealing gasket.

9. The copper wire drawing equipment for easy mold insertion according to claim 1, characterized in that: A meter wheel (11) for detecting the length of the wire being unwound is provided between the unwound wheel (1) and the drawing mechanism, and the copper wire drawn out from the unwound wheel (1) passes through the meter wheel (11).

10. The copper wire drawing equipment for easy mold insertion according to claim 1, characterized in that: A guide wheel (21) and a wire arrangement wheel (22) are provided between the take-up wheel (2) and the drawing mechanism. The copper wire drawn out of the drawing mechanism passes through the guide wheel (21) and is then introduced into the wire arrangement wheel (22). The wire arrangement wheel (22) is configured to be able to reciprocate along the axial direction of the take-up wheel (2) so that the copper wire is evenly wound on the take-up wheel (2).

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