An open reducing die device for photovoltaic copper wire drawing processing and a using method thereof

Abstract

The present application relates to metal wire drawing processing technical field, disclose a kind of photovoltaic copper wire drawing processing's opening variable diameter die device and use method, this method aims at solving the problem of changing wire diameter by constantly replacing die when online production.The present application method uses the device with opening die, key steps include: in the drawing stop state, the corresponding die positioning wheel and die upper pressure wheel are separated by operating screw mechanism, so that the die is in opening state;Wire is clamped into opening or replaced by different diameter roll forming die and roll shaping die transversely;Then the die is moved to the center of wire axis, and the die is dynamically compressed by screw;Finally, start drawing mechanism, complete the final closure of die in the drawing process, realize the continuous drawing forming of wire;The present application is characterized by simple operation, can realize online, continuous wire quick die change in wire production process, effectively improve production efficiency and output.

Description

Technical Field

[0001] This invention relates to a metal wire drawing die device, and more particularly to an open-diameter variable die device and its method of use for drawing photovoltaic copper wire. Background Technology

[0002] Currently, the production of photovoltaic transmission wire drawing typically involves the wire being inserted into a die hole and drawn by a drawing mechanism. As the wire passes through the die hole, the die squeezes the wire, compressing its cross-section and reducing its diameter. Because traditional dies have fixed die holes, the wire must be inserted into the die hole at its tip and pulled out as a wire end. The wire end is then fixed by the drawing mechanism, wound, and drawn. This process is prone to breakage during manual operation, and inserting the wire into the die hole is difficult and complex. Furthermore, the production of wire with only one die hole corresponds to one wire diameter, limiting the wire drawing process. During the wire drawing process, it is impossible to change dies of different diameters or alter the wire diameter at the midpoint of the wire, affecting production output. In view of these reasons, an open-diameter variable die device and its usage method for photovoltaic copper wire drawing are proposed. Summary of the Invention

[0003] The purpose of this invention is to overcome the limitations of traditional wire drawing processes for photovoltaic copper wires. Traditional methods involve manually inserting the wire tip into the die hole and pulling it out, which is difficult and complex. Furthermore, during wire drawing, it is impossible to change dies of different diameters or alter the wire diameter, affecting production output. This invention provides an open-end variable-diameter die device and its usage method for photovoltaic copper wire drawing. The die device is an open-end die, allowing the copper wire to enter laterally through the opening, preventing the wire from being pulled out or broken, thus reducing production difficulty. During wire drawing, different diameter dies can be changed at the middle of the wire without disconnecting it. This flexible die diameter change accelerates production and improves both the quantity and quality of wire produced.

[0004] To achieve the above objectives, this invention provides, on one hand, an opening-diameter-changing die device for photovoltaic copper wire drawing, comprising: a copper wire drawing device, an opening die, a die positioning wheel, a die upper pressure wheel, a die bushing, a roll forming die, a roll shaping die, an upper pressure wheel shaft, a locking nut, a die frame, a frame crossbeam, a slide rail, a slider, a cantilever, a die positioning frame, a first die positioning frame, a second die positioning frame, a die lower crossbeam, a die opening screw, a screw manual disc, an upper die slider, a lower die slider, a positioning screw, a wire lubrication device, a drawing mechanism, and a wire feeding mechanism; the copper wire drawing device is equipped with a front end... The wire lubrication device and the copper wire drawing device are arranged longitudinally from front to back as follows: a mold frame, a drawing mechanism, and a wire feeding mechanism. The upper end of the drawing mechanism is a winding shaft. The upper end of the mold frame is equipped with a frame beam. A slide is set in the middle of the frame beam. A slider is set above the slide. A pair of mold frames are symmetrically arranged on both sides of the slider. The pair of mold frames are respectively set as a first mold positioning frame and a second mold positioning frame. Cantilever arms are set between the sliders and the pair of mold frames. A lower mold beam is set between the lower parts of the pair of mold frames. The pair of mold frames, sliders, a pair of cantilever arms, and lower mold beam are combined to form a frame-shaped frame.

[0005] A pair of open molds are respectively set on the lower side of the first mold positioning frame and the second mold positioning frame. The pair of open molds are respectively set as a pair of mold pressure rollers corresponding to the upper and lower parts. The lower mold pressure rollers are respectively set as mold positioning rollers, and the upper mold pressure rollers are respectively set as upper mold pressure rollers. The upper mold pressure rollers and mold positioning rollers are used to roll the wire with the open molds.

[0006] The first mold positioning frame has mold grooves pre-reserved on the outer edges of the mold upper pressure roller and the mold positioning roller, respectively. Roll forming molds are set in the mold grooves, and a pair of roll forming molds are set as roll forming holes. The second mold positioning frame has mold grooves pre-reserved on the outer edges of the mold upper pressure roller and the mold positioning roller, respectively. Roll forming molds are set in the mold grooves, and a pair of roll forming molds are set as roll forming holes. The centers of the roll forming holes and the roll forming holes are set to correspond, and the roll forming molds and the roll forming molds are matched with different wire diameters.

[0007] The upper and lower parts of the first mold positioning frame and the second mold positioning frame are respectively reserved with sliding grooves. The upper mold slider is respectively set in the upper sliding groove. The upper mold slider has a long strip-shaped shaft hole reserved on one side of the upper pressure roller of the mold. The upper pressure roller shaft is set through the upper mold slider and the center of the upper pressure roller of the mold. A bushing is set between one end of the upper pressure roller shaft and the upper pressure roller of the mold, and a bushing lock nut is set at the other end of the upper pressure roller shaft. The upper end of the upper mold slider is equipped with a mold opening screw, and the upper end of the mold opening screw is equipped with a screw manual dial. The opening screw is used for the opening and closing movement of the upper pressure roller of the mold.

[0008] The lower slide is equipped with a lower mold slider. A long strip-shaped shaft hole is reserved on one side of the lower mold slider and the mold positioning wheel. An upper pressure roller shaft is installed through the center of the lower mold slider and the mold positioning wheel. A bushing is installed between one end of the upper pressure roller shaft and the mold positioning wheel, and a bushing lock nut is installed at the other end of the upper pressure roller shaft. A positioning screw is installed at the lower end of the lower mold slider, and a manual screw disc is installed at the lower end of the positioning screw. The positioning screw is used for the opening and closing movement of the mold positioning wheel. The positioning screw and the opening screw are used for the opening and closing of the opening mold.

[0009] On the other hand, the present invention provides an open-diameter variable mold device and a method of using it for photovoltaic copper wire drawing. During the production of the copper wire drawing device, the wire is sequentially wound and fixed by a wire lubrication device, a pair of open molds, a wire feeding mechanism, and a drawing mechanism.

[0010] During the production process, the wire is drawn and moved by the drawing mechanism, and the wire is lubricated by the wire lubrication device. After lubrication, the wire enters a pair of open dies. The die positioning wheels and upper pressure rollers of the pair of open dies are in a separate open state. After the wire is inserted into the opening of the pair of open dies, the die positioning wheels and upper pressure rollers of the pair of open dies merge and squeeze the wire, and the opening of the pair of open dies closes.

[0011] Simultaneously, the wire is drawn and stretched by the drawing mechanism, then shaped and rolled by the rolling forming die, further stretched, and rolled by the rolling forming die to form the finished wire. The finished wire is then routed through the wire feeding mechanism to the winding shaft of the drawing mechanism. After the winding shaft is filled with the finished wire, the wire drawing process is completed.

[0012] When the wire drawing process changes the diameter without disconnecting the wire for die replacement, the wire on the copper wire drawing device is in a stopped state. The first die positioning frame and the second die positioning frame open the rolling forming die and the rolling forming die of a pair of open dies respectively through the positioning screw and the opening screw. That is, the pair of open dies are in the open state, and the rolling forming die and the rolling forming die corresponding to the diameter of the wire being processed are replaced.

[0013] After the mold is changed, the first mold positioning frame and the second mold positioning frame drive a pair of open molds to move laterally to the center of the wire axis and stop. The positioning screw and the opening screw respectively dynamically press the rolling forming mold and the rolling forming mold of the pair of open molds. At the same time as the dynamic pressing, the pulling mechanism is started to pull the wire. When the rolling forming mold and the rolling forming mold are merged, the dynamic pressing of the rolling forming mold and the rolling forming mold is completed. The online replacement of the rolling forming mold and the rolling forming mold corresponding to the diameter of the processed wire is completed. The processed wire is continuously produced after the diameter is changed.

[0014] Beneficial effects: The mold device of the present invention is an open mold, which allows copper wire to enter the open mold laterally through the opening, avoiding the phenomenon of the wire being pulled out or broken after passing through the mold hole, thus reducing the difficulty of production; during the wire drawing process in online production, different diameter molds can be changed from the middle of the wire without disconnecting the wire, and the mold diameter can be changed flexibly, which can speed up production and promote the output and quality of wire production. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall assembly structure;

[0017] Figure 2 yes Figure 1 A schematic diagram of the side view structure;

[0018] Figure 3 yes Figure 1 A schematic diagram of the structure of a rolling forming die for a partially open mold;

[0019] Figure 4 yes Figure 1 A schematic diagram of the roll forming die structure for a partially open die;

[0020] Figure 5 yes Figure 4 A schematic diagram of a partial structure;

[0021] Figure 6 yes Figure 4 A schematic diagram of the dynamic structure of the opening of the mold;

[0022] Figure 7 yes Figure 1 A schematic diagram of the assembly and copper wire drawing device;

[0023] Figure 1 , 2 1. Copper wire drawing device 2. Opening mold 3. Mold positioning wheel 2-1. Mold upper pressure wheel 2-2. Mold bushing 2-3. Roll forming mold 2-4. Roll forming mold 2-5. Upper pressure wheel shaft 2-6. Locking nut 2-7. Mold frame 3. Frame beam 4. Slide rail 5. Slider 6. Cantilever 6-1. Mold positioning frame 7. First mold positioning frame 7-1. Second mold positioning frame 7-2. Mold lower beam 7-3. Mold opening screw 8. Screw manual disc 9. Upper mold slider 10. Lower mold slider 11. Positioning screw 12. Wire lubrication device 13. Pulling mechanism 14. Wire feeding mechanism 15. Detailed Implementation

[0024] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the opening-diameter-changing die device and its usage method for photovoltaic copper wire drawing according to the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit the scope of protection of the invention.

[0025] Example 1: This example provides an open-end variable diameter die device for photovoltaic copper wire drawing. The main body of the device is a copper wire drawing device 1, with a wire lubrication device 13 at its front end. Vertically above the copper wire drawing device 1, from front to back, are a die frame 3, a drawing mechanism 14, and a wire feeding mechanism 15, wherein the upper end of the drawing mechanism 14 is configured as a winding shaft. A frame beam 4 is fixed to the upper end of the die frame 3, and a slide rail 5 is provided in the middle of the upper part of the frame beam 4. A slider 6 is mounted above the slide rail 5. A pair of die frames are symmetrically connected to both sides of the slider 6, which are respectively configured as a first die positioning frame 7-1 and a second die positioning frame 7-2. The slider 6 is connected to the pair of die frames via cantilever 6-1, and the lower parts of the two die frames are connected via a lower die beam 7-3, thus forming a stable frame structure.

[0026] On the lower side of the first mold positioning frame 7-1 and the second mold positioning frame 7-2, a pair of open molds 2 are respectively provided. Each pair of open molds 2 consists of a pair of mold pressure rollers corresponding to each other, wherein the lower mold pressure roller is set as the mold positioning roller 2-1, and the upper mold pressure roller is set as the upper mold pressure roller 2-2. The two work together to perform rolling processing on the wire.

[0027] Specifically, the upper pressure roller 2-2 of the first mold positioning frame 7-1 and the outer edge of the mold positioning roller 2-1 are respectively reserved with mold grooves. Roll forming molds 2-5 are respectively embedded in the mold grooves. When a pair of roll forming molds 2-5 are closed, they form a roll forming hole. Similarly, the upper pressure roller 2-2 of the second mold positioning frame 7-2 and the outer edge of the mold positioning roller 2-1 are also reserved with mold grooves. Roll forming molds 2-4 are respectively embedded in the mold grooves. When a pair of roll forming molds 2-4 are closed, they form a roll forming hole. The centers of the roll forming hole and the roll forming hole must be precisely aligned, and the roll forming molds 2-5 and 2-4 must be selected and set according to the diameter of the wire to be processed.

[0028] Example 2: Slide grooves are pre-reserved in the upper and lower parts of the first mold positioning frame 7-1 and the second mold positioning frame 7-2, respectively. An upper mold slider 10 is respectively installed in the upper slide groove. An elongated shaft hole is pre-reserved on one side of the upper mold pressure roller 2-2. The center of the upper mold pressure roller 2-2 is through-holed into this shaft hole via an upper pressure roller shaft 2-6. A bushing is provided between one end of the upper pressure roller shaft 2-6 and the upper mold pressure roller 2-2, and the other end is fixed by a locking nut 2-7. A mold opening screw 8 is connected to the upper end of the upper mold slider 10. A manual screw disc 9 is provided at the upper end of the screw, which drives the upper mold pressure roller 2-2 to open and close by operating the screw.

[0029] In the lower groove, a lower mold slider 11 is provided. Each lower mold slider 11 has a long, narrow shaft hole on one side corresponding to the mold positioning wheel 2-1. The center of the mold positioning wheel 2-1 is mounted here via a through-hole pressure roller shaft. One end of the shaft is fitted with a bushing between it and the mold positioning wheel 2-1, and the other end is secured with a locking nut 2-7. A positioning screw 12 is connected to the lower end of the lower mold slider 11, and a manual screw disc 9 is also provided at its lower end to drive the mold positioning wheel 2-1 to open and close. The mold opening screw 8 and the positioning screw 12 work together to achieve precise opening and closing of the opening mold 2.

[0030] Example 3: This example provides a method for using the above-mentioned device. During normal production of the copper wire drawing device 1, the wire passes sequentially through the wire lubrication device 13, a pair of open dies 2, and the conductor feeding mechanism 15, and is finally wound and fixed on the drawing mechanism 14. During production, the drawing mechanism 14 continuously draws the wire, causing it to move forward. The wire first undergoes surface lubrication through the lubrication device 13, and then is laterally inserted into the open die 2. Afterward, the die positioning wheel 2-1 and the die upper pressure wheel 2-2 are operated to merge, thereby squeezing the wire and closing the die opening. The wire is stretched under the action of the drawing force, first undergoes preliminary rolling forming through the rolling forming die 2-4, and then undergoes fine rolling through the rolling shaping die 2-5, finally being processed into a qualified finished wire product. The finished wire is guided by the conductor feeding mechanism 15 to the winding shaft of the drawing mechanism 14 for orderly wiring. Once the winding shaft is full, the drawing process of this batch of wire is completed.

[0031] Example 4: When it is necessary to change the wire diameter during production without disconnecting the wire for mold replacement, follow these steps: First, stop the copper wire drawing device 1 to bring the wire to a standstill. Then, operate the positioning screws 12 and the mold opening screws 8 on the first mold positioning frame 7-1 and the second mold positioning frame 7-2 respectively to fully open the pair of open molds 2, separating the rolling forming mold 2-5 from the rolling forming mold 2-4, leaving the molds in an open state. At this point, the rolling forming mold and rolling forming mold that match the target wire diameter can be replaced.

[0032] After the mold replacement is completed, the first mold positioning frame 7-1 and the second mold positioning frame 7-2 drive the pair of open molds 2 to move laterally until the center of their mold holes is aligned with the wire axis. Then, the positioning screw 12 and the mold opening screw 8 are operated respectively to dynamically clamp the pair of open molds 2. Simultaneously with this dynamic clamping, the drawing mechanism 14 is activated to draw the wire until the upper and lower molds are completely closed, thus completing the dynamic clamping and online replacement of the rolling forming mold 2-5 and the rolling die 2-4. The resulting wire has the new target diameter, and the device can then perform continuous production accordingly.

Claims

1. A kind of open reducing die device of photovoltaic copper wire drawing processing, it is by: copper wire drawing device (1), open die (2), die positioning wheel (2-1), die upper press wheel (2-2), die shaft sleeve (2-3), roll forming die (2-4), roll shaping die (2-5), upper press wheel shaft (2-6), locking nut (2-7), die frame body (3), frame beam (4), slide (5), sliding block (6), cantilever (6-1), die positioning frame (7), first die positioning frame (7-1), second die positioning frame (7-2), die lower crossbeam (7-3), die open lead screw (8), lead screw manual disc (9), upper die sliding block (10), lower die sliding block (11), positioning lead screw (12), wire lubricating device (13), drawing mechanism (14), wire distribution mechanism (15) constitute;Its characterized in that: The copper wire drawing device (1) is provided with a wire lubricating device (13) at the front end, and the longitudinal direction of the copper wire drawing device (1) is sequentially provided with a die frame body (3), a drawing mechanism (14), and a wire guiding and distributing mechanism (15) from front to back. The upper end of the drawing mechanism (14) is provided with a winding shaft; the upper end of the die frame body (3) is provided with a frame beam (4), the middle of the upper surface of the frame beam (4) is provided with a slide (5), the upper surface of the slide (5) is respectively provided with a sliding block (6), a pair of die frame bodies are symmetrically arranged on the two sides of the sliding block (6), and the die frame bodies are respectively a first die positioning frame (7-1) and a second die positioning frame (7-2); a cantilever (6-1) is arranged between the two sides of the sliding block (6) and the pair of die frame bodies, a die lower beam (7-3) is arranged between the lower parts of the pair of die frame bodies, and the pair of die frame bodies are combined with the sliding block (6), the pair of cantilevers (6-1), and the die lower beam (7-3) to form a frame-shaped frame body; The lower parts of the first die positioning frame (7-1) and the second die positioning frame (7-2) are respectively provided with a pair of open dies (2), the open dies (2) are respectively provided with a pair of die pressure wheels corresponding to each other in the up-down direction, the lower die pressure wheels are respectively provided with die positioning wheels (2-1), and the upper die pressure wheels are respectively provided with die upper pressure wheels (2-2); the die upper pressure wheels (2-2) and the die positioning wheels (2-1) are used for rolling and pressing the wire of the open dies (2); The die upper pressure wheels (2-2) and the die positioning wheels (2-1) of the first die positioning frame (7-1) correspondingly reserve die grooves at the periphery edges, respectively, and a rolling and shaping die (2-5) is arranged in each die groove; a pair of rolling and shaping dies (2-5) are correspondingly provided as rolling and shaping holes; The die upper pressure wheels (2-2) and the die positioning wheels (2-1) of the second die positioning frame (7-2) correspondingly reserve die grooves at the periphery edges, respectively, and a rolling and forming die (2-4) is arranged in each die groove; a pair of rolling and forming dies (2-4) are correspondingly provided as rolling and forming holes; The rolling and shaping holes and the rolling and forming holes are correspondingly arranged at the centers, and the rolling and shaping dies (2-5) and the rolling and forming dies (2-4) are matched with different diameters of wires.

2. The open reducing die device for photovoltaic copper wire drawing process according to claim 1, characterized in that: The upper parts and the lower parts of the first die positioning frame (7-1) and the second die positioning frame (7-2) respectively reserve sliding grooves, upper die sliding blocks (10) are respectively arranged in the upper sliding grooves, a long-strip-shaped shaft hole is reserved on one side of the upper die sliding blocks (10) corresponding to the die upper pressure wheels (2-2), upper pressure wheel shafts (2-6) are correspondingly arranged at the centers of the upper die sliding blocks (10) corresponding to the die upper pressure wheels (2-2), shaft sleeves are arranged between the upper pressure wheel shafts (2-6) and the die upper pressure wheels (2-2), and the other ends of the upper pressure wheel shafts (2-6) are provided with shaft sleeve locking nuts (2-7); die opening lead screws (8) are arranged at the upper ends of the upper die sliding blocks (10), and screw hand discs (9) are arranged at the upper ends of the die opening lead screws (8); the die opening lead screws (8) are used for opening and closing movement of the die upper pressure wheels (2-2). Lower chute is provided with lower mold slider (11) respectively, lower mold slider (11) and the one side of mold positioning wheel (2-1) are reserved long strip-shaped axle hole, lower mold slider (11) and the center of mold positioning wheel (2-1) are provided with upper pressure wheel axle (2-6) in opposite, the one end between upper pressure wheel axle (2-6) and mold positioning wheel (2-1) is provided with shaft sleeve, the other end of upper pressure wheel axle (2-6) is provided with axle sleeve locking nut (2-7);The lower end of lower mold slider (11) is provided with positioning lead screw (12), and the lower end of positioning lead screw (12) is provided with lead screw hand wheel (9);Positioning lead screw (12) is used for the opening and closing movement of mold positioning wheel (2-1);Positioning lead screw (12) and opening lead screw (8) are used for the opening and closing of opening mold (2).

3. A method of using the open reducing die device for photovoltaic copper wire drawing processing according to claim 1 or 2, characterized in that: When the copper wire drawing device (1) is produced, the wire is sequentially through the wire lubricating device (13), a pair of opening molds (2), the wire distribution mechanism (15) and the drawing mechanism (14) for winding and fixing; During production, the wire is drawn and run through the drawing mechanism (14), and the wire is surface lubricated through the wire lubricating device (13); the lubricated wire enters a pair of opening molds (2), the mold positioning wheel (2-1) and the mold upper pressure wheel (2-2) of the pair of opening molds (2) are in a separated opening state, and the wire is clamped into the opening of the pair of opening molds (2); the mold positioning wheel (2-1) and the mold upper pressure wheel (2-2) of the pair of opening molds (2) are combined and extruded, respectively, and the opening of the pair of opening molds (2) is closed; At the same time, the wire is drawn through the drawing mechanism (14), the wire is further stretched through the shaping and rolling of the rolling shaping die (2-5), and the wire is processed and shaped into a wire product after rolling through the rolling forming die (2-4); the wire product is wired through the wire distribution mechanism (15) to the winding shaft of the drawing mechanism (14), and the wire drawing process is completed after the winding shaft is filled with the finished wire.

4. The method of using the open reducing die set for drawing of photovoltaic copper wire according to claim 3, wherein: When the wire drawing changes the diameter and the continuous wire changes the mold, the wire on the copper wire drawing device (1) is in a drawing stop state; the first mold positioning frame (7-1) and the second mold positioning frame (7-2) respectively open the rolling shaping die (2-5) and the rolling forming die (2-4) of the pair of opening molds (2) through the positioning lead screw (12) and the opening lead screw (8), respectively, that is, the pair of opening molds (2) are in an open state, and the rolling shaping die (2-5) and the rolling forming die (2-4) corresponding to the processed wire diameter are replaced; After the mold replacement is completed, the first mold positioning frame (7-1) and the second mold positioning frame (7-2) drive the pair of split dies (2) to move transversely to the center of the wire axis, stop, and respectively pass through the positioning lead screw (12) and the split lead screw (8) to dynamically compress the rolling shaping die (2-5) and the rolling forming die (2-4) of the pair of split dies (2), and at the same time of dynamic compression, start the drawing mechanism (14) to draw the wire, until the rolling shaping die (2-5) and the rolling forming die (2-4) are combined, the dynamic compression of the rolling shaping die (2-5) and the rolling forming die (2-4) is completed, the on-line replacement of the rolling shaping die (2-5) and the rolling forming die (2-4) corresponding to the processed wire diameter is completed, and the processed wire is continuously produced after the diameter is changed.

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