Flat wire winding mechanism and method for winding machine

Abstract

The present invention provides a flat wire winding mechanism and method for a winding machine, belonging to the technical field of flat wire winding. A flat wire winding mechanism for a winding machine, comprising a connecting bottom plate, a vertical plate 1, a vertical plate 2, a winding roller, a positioning block, a threading groove, a clamping plate, an extension block, a mounting cavity, an elastic part and a driving part 1; when the driving part 1 is energized, the present invention can attract a moving plate, so that the connecting rod drives the clamping plate to separate, providing a smooth passage space for the flat wire between the two clamping plates, when the electromagnet is powered off, the moving plate is quickly reset under the elastic force of the spring, and at the same time, the gas between the mounting cavity and the positioning block is squeezed, and transmitted to the air cushion through the air guide pipe, so that the air cushion expands, and the expanded air cushion produces a soft and stable clamping force on the flat wire, effectively avoiding the wear and scratches on the surface of the flat wire caused by direct contact with hard objects. This design not only improves the smoothness of the flat wire passing, but also enhances the quality protection of the flat wire during the winding and reeling process.

Description

Technical Field

[0001] The invention relates to the technical field of flat wire winding, and in particular to a flat wire winding mechanism and method for a winding machine. Background Art

[0002] Flat wire, also known as flat wire, flattened wire, flat angle wire or ultra-narrow strip, refers to a special metal wire with a cross-section that is approximately a rounded rectangle. Because the flat wire is strip-like, it is sometimes called an ultra-narrow flat strip. Compared with the common round wire, the flat wire has unique advantages in heat dissipation, welding contact area, fatigue resistance, hardness control, etc. With the application of flat wire, the processing and production of flat copper wire are also increasingly used.

[0003] The patent application publication number is CN218403092U, which discloses a flat copper wire take-up device, including a workbench, a control box and a bracket, a control box is installed on one side of the workbench, two brackets are welded on the workbench on one side of the control box, a take-up mechanism is installed on the bracket, a bottom box is opened at the bottom end of the other side of the workbench, a moving mechanism is installed in the bottom box, a slide is opened on the workbench at the top of the moving mechanism, a base is installed at the top of the moving mechanism, a telescopic rod is installed at the top of the base, a support block is installed at the top of the telescopic rod, a pressure block is connected to the top of the support block, and adjustment buttons are installed on both sides of the support block and the pressure block. The device has the advantages of being able to take up and wind the flat copper wire, preventing the flat copper wire from being deformed, and evenly arranging the flat copper wire on the roller, strong structural coordination, and strong practicality.

[0004] The above-mentioned existing device can evenly wind the limited flat wire on the winding rod of the wire-receiving mechanism under the action of the moving mechanism through the design of the supporting block and the pressing block. However, when the flat wire is limited before being connected to the supporting block and the pressing block, it is necessary to manually twist the adjustment button to adjust the distance between the pressing block and the supporting block so that the flat wire can smoothly pass through and be wound on the winding rod of the wire-receiving mechanism for winding, which makes the process too complicated and cumbersome. Therefore, in view of this problem, the present invention proposes a flat wire winding mechanism and method for a winding machine. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a flat wire winding mechanism and method for a winding machine that can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a flat wire winding mechanism for a winding machine, comprising a connecting base plate and a pair of vertical plates one fixed on the connecting base plate, a winding roller is rotatably arranged between the two vertical plates one, a vertical plate two is fixed on the vertical plate one, a positioning block that can move left and right is arranged between the two vertical plates two, a threading groove is arranged on the positioning block, a pair of wire clamping plates are arranged in the threading groove, when the wire clamping plates and the inner wall of the threading groove are in sliding connection, an extension block is connected to the positioning block, an installation cavity is arranged in the extension block, an elastic part is arranged between the wire clamping plate and the installation cavity, a driving part one is installed on the inner wall of the installation cavity, when the driving part one is in contact with the elastic part, the two wire clamping plates are in a non-contact state, and when the driving part one is not in contact with the elastic part, the two wire clamping plates are in a contact state.

[0007] Preferably, a driving unit 2 is installed on one of the two vertical plates 1, a circular mounting disk is fixed to the output end of the driving unit 2, a square docking rod is provided on the circular mounting disk, a square docking groove 1 is provided at the end of the winding roller corresponding to the square docking rod, a square docking groove 2 is provided at the other end of the winding roller, and a corresponding interference portion is provided on the vertical plate 1 located in front of the square docking groove 2.

[0008] Preferably, the abutment part comprises a driving part three installed on the vertical plate one, the output end of the driving part three is connected to a abutment disk via a bearing, and a plug-in rod for abutting against the square docking groove two is fixed on the abutment disk.

[0009] Preferably, a driving unit four is installed on the vertical plate two, and the output end of the driving unit four is connected to a threaded rod rotating between the two vertical plates two, a movable sleeve is threadedly connected to the threaded rod, and the bottom of the movable sleeve is fixed on the extension block.

[0010] Preferably, the sliding sleeve on the movable sleeve is provided with a limiting guide rod, and the limiting guide rod is fixed between the two vertical plates 2.

[0011] Preferably, the elastic part includes a pair of connecting rods sliding on the positioning block, one end of the connecting rod located inside the wire threading groove is fixed to the wire clamping plate, and one end of the connecting rod located inside the mounting cavity is fixed with a movable plate that cooperates with the driving part, and a spring mounted on the connecting rod is fixed between the movable plate and the positioning block.

[0012] Preferably, when the movable plate is made of iron, the driving part 1 is an electromagnet.

[0013] Preferably, when the movable plate is separated from the surface of the driving part, an air duct connected to the installation cavity is provided on the clamping plate, and the other end of the air duct is connected to an air cushion, and the air cushion is fixed on the opposite side of the two clamping plates.

[0014] Preferably, the air guide tube is a hose structure.

[0015] The present invention also provides a method for using the flat wire winding mechanism of the winding machine, comprising the following steps: S1. First, fix the connecting base plate on a row of workbenches of the external winding device, and then make the flat wire wound on the external winding device pass through the threading groove and be wound on the winding roller; S2, start the driving part to disconnect the elastic part, so that the two clamping plates can clamp the flat wire connected to the threading groove under the elastic force of the corresponding elastic part; S3. When winding, start the winding roller and the corresponding mechanism of the positioning block, so that the positioning block moves back and forth from left to right and then from right to left in the horizontal direction to achieve uniform distribution of the flat wire on the winding roller.

[0016] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: the present invention, through the coordinated cooperation of the positioning block, the threading groove, the clamping plate, the driving part and the moving plate, is to facilitate the clamping of the flat wire, and can assist the positioning block in the process of moving, stably and evenly winding the flat wire on the winding roller for winding, thereby avoiding the deviation or looseness of the flat wire that may occur during the winding process; It is worth mentioning that when the driving unit is energized, it can attract the moving plate, so that the connecting rod drives the clamping plates to separate, providing a smooth passage space for the flat wire between the two clamping plates. When the electromagnet is powered off, the moving plate is quickly reset under the elastic force of the spring, and at the same time squeezes the gas between the installation cavity and the positioning block, and transmits it to the air cushion through the air guide tube to expand the air cushion. The expanded air cushion produces a soft and stable clamping force on the flat wire, effectively avoiding wear and scratches on the surface of the flat wire caused by direct contact with hard objects. This flexible clamping method not only realizes the smooth passage of the flat wire between the clamping plates, but also enhances the quality protection of the flat wire during the winding and reeling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic side view of a flat wire winding mechanism for a winding machine provided by the present invention; Figure 2 A schematic diagram of a top view of a flat wire winding mechanism for a winding machine provided by the present invention; Figure 3 A schematic diagram of a connection structure in which a winding roller of a flat wire winding mechanism for a winding machine provided by the present invention is located between two vertical plates; Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure at center A; Figure 5 For the present invention Figure 3 A schematic diagram of the partially enlarged structure at B in the middle; Figure 6 A schematic diagram of the connection structure between a positioning block and a moving sleeve of a flat wire winding mechanism for a winding machine provided by the present invention; Figure 7 A schematic diagram of the structure of two wire clamping plates separated from each other in a flat wire winding mechanism for a winding machine provided by the present invention; Figure 8 A schematic diagram of the overlapped structure of two wire clamping plates of a flat wire winding mechanism for a winding machine provided by the present invention; Fig. 9 A schematic diagram of the connection structure between a wire clamping plate and an air guide tube of a flat wire winding mechanism for a winding machine provided by the present invention.

[0018] In the figure: 1, connecting bottom plate; 11, vertical plate one; 12, vertical plate two; 2, winding roller; 21, driving unit two; 22, circular mounting plate; 23, square docking rod; 24, square docking groove one; 25, square docking groove two; 26, interference part; 261, driving unit three; 262, interference plate; 263, plug-in rod; 3, positioning block; 31, threading groove; 32, clamping plate; 33, extension block; 34, mounting cavity; 35, elastic part; 351, connecting rod; 352, moving plate; 353, spring; 36, driving unit one; 37, air guide tube; 38, air cushion; 4, driving unit four; 41, threaded rod; 42, moving sleeve; 43, limiting guide rod. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0020] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0021] In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They 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, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1, Figure 2 and Figure 6 A flat wire winding mechanism for a winding machine comprises a connecting bottom plate 1 and a pair of vertical plates 11 fixed on the connecting bottom plate 1, a winding roller 2 is rotatably arranged between the two vertical plates 11, and the connecting bottom plate 1 and the pair of vertical plates 11 fixed on the connecting bottom plate 1 can provide a stable supporting structure for the winding roller 2 when rotating and winding the flat wire, thereby ensuring the stability of the winding roller 2 during use. At the same time, in order to avoid the problem of uneven distribution of the flat wire on the winding roller 2, a vertical plate 2 12 is fixed on the vertical plate 11, a positioning block 3 which can be moved left and right is provided between the two vertical plates 2 12, a driving unit 4 4 is installed on the vertical plate 2 12, and the output end of the driving unit 4 4 is connected to the two vertical plates 2 12. A threaded rod 41 rotates between two vertical plates 12, and a movable sleeve 42 is threadedly connected to the threaded rod 41. The bottom of the movable sleeve 42 is fixed on the extension block 33. A sliding sleeve on the movable sleeve 42 is provided with a limiting guide rod 43, and the limiting guide rod 43 is fixed between the two vertical plates 12. A threading groove 31 is provided on the positioning block 3, and a pair of clamping plates 32 are provided in the threading groove 31. When the driving part 44 of the servo motor drives the movable sleeve 42 on the threaded rod 41 to cooperate with the positioning block 3 to move back and forth from left to right and then from right to left, it helps to ensure that the flat wire can be evenly distributed along the circumference of the winding roller 2, avoiding the stacking or sparse unevenness of the flat wire that may occur in the traditional fixed winding method.

[0023] The above technical solution is optimized by referring to Figure 3-Figure 5 A driving part 21 is installed on one of the two vertical plates 11, and a circular mounting plate 22 is fixed to the output end of the driving part 21. A square docking rod 23 is provided on the circular mounting plate 22. A square docking groove 24 is provided at the end of the winding roller 2 corresponding to the square docking rod 23, and a square docking groove 25 is provided at the other end of the winding roller 2. A corresponding interference part 26 is provided on the vertical plate 11 located in front of the square docking groove 25. The interference part 26 includes a driving part 3 261 installed on the vertical plate 11, and the output end of the driving part 3 261 is connected to a contact plate 262 through a bearing, and a plug-in rod 263 for interfering with the square docking groove 25 is fixed on the contact plate 262.

[0024] By adopting this optimized technical solution, the winding and replacement process of the winding roller 2 becomes extremely convenient and efficient. When winding the flat wire, it is only necessary to simply clamp the winding roller 2 between the circular mounting disk 22 and the abutment disk 262, and then start the drive part 21 equipped with a servo motor to drive the circular mounting disk 22 to rotate, thereby driving the winding roller 2 to smoothly wind the flat wire. When the winding roller 2 completes the winding task and needs to be replaced, the operation is also simple. By starting the drive part 3 261 driven by the cylinder, the abutment disk 2 The plug-in rod 263 on 62 is disengaged from the square docking groove 25, and the full winding roller 2 is easily pulled out. Subsequently, the square docking groove 1 24 of the new unwound winding roller 2 is aligned and clamped on the square docking rod 23, and the driving unit 3 261 is started again to insert the plug-in rod 263 into the square docking groove 25, and the fixing of the winding roller 2 is quickly completed, preparing for the next round of winding operation. This process greatly simplifies the replacement process of the winding roller and improves the production efficiency and flexibility of equipment operation.

[0025] Further, refer to Figure 7 When the clamping plate 32 is slidably connected to the inner wall of the threading groove 31, an extension block 33 is connected to the positioning block 3, and a mounting cavity 34 is provided in the extension block 33. An elastic portion 35 is provided between the clamping plate 32 and the mounting cavity 34, and a driving portion 36 is installed on the inner wall of the mounting cavity 34. The elastic portion 35 includes a pair of connecting rods 351 sliding on the positioning block 3, and one end of the connecting rod 351 located inside the threading groove 31 is fixed to the clamping plate 32, and one end of the connecting rod 351 located inside the mounting cavity 34 is fixed with a moving plate 352 matched with the driving portion 36, and a spring 353 sleeved on the connecting rod 351 is fixed between the moving plate 352 and the positioning block 3. When the moving plate 352 is made of iron, the driving portion 36 is an electromagnet. When the driving portion 36 contacts the elastic portion 35, the two clamping plates 32 are in a non-contact state.

[0026] In the above technical scheme, when the movable plate 352 is made of iron material, the driving part 36 matched therewith is an electromagnet. This design makes it possible to attract and release the movable plate 352 by controlling the on and off of the electromagnet. When the electromagnet is energized, its magnetic force will attract the iron movable plate 352, and then drive the clamping plate 32 to move toward the inner wall of the threading groove 31 through the connecting rod 351, so that the clamping plates 32 that may originally be in contact with each other are separated to a certain distance, forming a spacious and unobstructed channel, which is convenient for the flat wire to easily pass through and accurately wind around the winding roller 2. In contrast, when the traditional bolt structure or elastic structure is used to limit the flat wire, it is often necessary to perform cumbersome manual adjustments, such as twisting the bolt to loosen the clamping plate 32, or manually propping up the elastic structure to create a gap. These operations are time-consuming and labor-intensive. The design in the present technical scheme completely avoids these disadvantages, realizes the automatic adjustment of the spacing between the clamping plates 32, and makes the threading and winding process of the flat wire faster and simpler.

[0027] In a preferred embodiment, referring to Figure 8 When the wire clamping plate 32 is slidably connected to the inner wall of the threading groove 31, an extension block 33 is connected to the positioning block 3, and a mounting cavity 34 is provided in the extension block 33. An elastic part 35 is provided between the wire clamping plate 32 and the mounting cavity 34, and a driving part 36 is installed on the inner wall of the mounting cavity 34. The elastic part 35 includes a pair of connecting rods 351 sliding on the positioning block 3, and one end of the connecting rod 351 located inside the threading groove 31 is fixed to the wire clamping plate 32, and one end of the connecting rod 351 located inside the mounting cavity 34 is fixed with a moving plate 352 matched with the driving part 36, and a spring 353 mounted on the connecting rod 351 is fixed between the moving plate 352 and the positioning block 3. When the moving plate 352 is made of iron, the driving part 36 is an electromagnet. When the driving part 36 is not in contact with the elastic part 35, the two wire clamping plates 32 are in contact.

[0028] In the above technical solution, when the movable plate 352 is made of iron material, the corresponding driving part 36 is made of electromagnet. This design makes it possible to attract and release the movable plate 352 by controlling the on and off of the electromagnet. When the electromagnet is in the power-off state, the movable plate 352 is no longer attracted by the magnetic force. At this time, the movable plate 352 will quickly reset under the elastic force of the spring 353. This reset action is transmitted to the clamping plate 32 through the connecting rod 351, so that the two clamping plates 32 approach each other and finally contact, thereby effectively clamping the flat wire. This clamping mechanism provides a stable and reliable limiting environment for the flat wire, ensuring that the positioning block 3 can drive the flat wire to be stably wound on the winding roller 2 during the movement, avoiding the deviation or loosening of the flat wire during the winding process.

[0029] In a preferred embodiment, referring to Fig. 9When the clamping plate 32 is slidably connected to the inner wall of the threading groove 31, the positioning block 3 is connected to an extension block 33, and a mounting cavity 34 is provided in the extension block 33. An elastic portion 35 is provided between the clamping plate 32 and the mounting cavity 34. A driving portion 36 is installed on the inner wall of the mounting cavity 34. The elastic portion 35 includes a pair of connecting rods 351 sliding on the positioning block 3. One end of the connecting rod 351 located inside the threading groove 31 is fixed to the clamping plate 32, and one end of the connecting rod 351 located inside the mounting cavity 34 is fixed with a connecting rod 351 that is connected to the driving portion 36. A matching movable plate 352, a spring 353 sleeved on the connecting rod 351 is fixed between the movable plate 352 and the positioning block 3. When the movable plate 352 is made of iron, the driving part 36 is an electromagnet. When the driving part 36 is not in contact with the elastic part 35, the two clamping plates 32 are in contact. The clamping plate 32 is provided with an air guide tube 37 connected to the installation cavity 34. The other end of the air guide tube 37 is connected to an air cushion 38. The air cushion 38 is fixed on the opposite side of the two clamping plates 32, and the air guide tube 37 is a hose structure.

[0030] In the above technical solution, when the electromagnet is in the power-off state, the movable plate 352 is no longer attracted by the magnetic force. At this time, under the elastic force of the spring 353, the movable plate 352 will quickly slide and reset along the inner wall of the installation cavity 34. During this sliding and resetting process, the gas corresponding to the cavity between the movable plate 352 and the positioning block 3 can be squeezed into the air cushion 38 through the air guide tube 37 to achieve the expansion of the air cushion 38. The expansion of the air cushion 38 produces a soft and stable clamping force on the flat wire. This clamping method is gentler than clamping between two relatively hard clamping plates 32, and can effectively avoid the wear problem of the flat wire surface due to direct contact with the hard clamping parts, ensuring that the flat wire is stably and evenly wound while also enhancing the quality protection of the flat wire during the winding and winding process.

[0031] The present invention also provides a method for using the flat wire winding mechanism of the winding machine, comprising the following steps: S1. First, fix the connecting base plate 1 on a row of workbenches of the external winding device, and then make the flat wire wound on the external winding device pass through the threading groove 31 and be wound on the winding roller 2; S2, start the driving part 36 to disconnect the elastic part 35, so that the two clamping plates 32 can clamp the flat wire connected to the threading groove 31 under the elastic force of the corresponding elastic part 35; S3. When winding, start the winding roller 2 and the corresponding mechanism of the positioning block 3, so that the positioning block 3 moves back and forth from left to right and then from right to left in the horizontal direction to achieve uniform distribution of the flat wire on the winding roller 2.

[0032] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the present invention, and all of them belong to the protection scope of the present invention.

Claims

1. A flat wire winding mechanism for a winding machine, characterized in that: include: A connecting bottom plate (1) and a pair of vertical plates (11) fixed to the connecting bottom plate (1); A winding roller (2) is rotatably arranged between the two vertical plates (11); a vertical plate (12) is fixed on the vertical plate (11); a positioning block (3) movable leftward and rightward is arranged between the two vertical plates (12); a threading groove (31) is arranged on the positioning block (3); and a pair of clamping plates (32) are arranged in the threading groove (31); When the clamping plate (32) is slidably connected to the inner wall of the threading groove (31), an extension block (33) is connected to the positioning block (3), a mounting cavity (34) is provided in the extension block (33), an elastic portion (35) is provided between the clamping plate (32) and the mounting cavity (34), and a driving portion (36) is installed on the inner wall of the mounting cavity (34); When the driving part 1 (36) is in contact with the elastic part (35), the two clamping plates (32) are in a non-contact state; when the driving part 1 (36) is not in contact with the elastic part (35), the two clamping plates (32) are in a contact state.

2. A flat wire winding mechanism for a winding machine according to claim 1, characterized in that: A driving part 2 (21) is mounted on one of the two vertical plates 1 (11), a circular mounting plate (22) is fixed to the output end of the driving part 2 (21), a square docking rod (23) is provided on the circular mounting plate (22), a square docking groove 1 (24) is provided at one end of the winding roller (2) corresponding to the square docking rod (23), a square docking groove 2 (25) is provided at the other end of the winding roller (2), and a corresponding abutment part (26) is provided on the vertical plate 1 (11) located in front of the square docking groove 2 (25).

3. A flat wire winding mechanism for a winding machine according to claim 2, characterized in that: The abutment portion (26) comprises a driving portion three (261) mounted on the vertical plate one (11); an output end of the driving portion three (261) is connected to a abutment disk (262) via a bearing; a plug-in rod (263) for abutting against the square docking groove two (25) is fixed to the abutment disk (262).

4. A flat wire winding mechanism for a winding machine according to claim 1, characterized in that: A driving unit four (4) is mounted on the vertical plate two (12); an output end of the driving unit four (4) is connected to a threaded rod (41) that rotates between the two vertical plates two (12); a moving sleeve (42) is threadedly connected to the threaded rod (41); and a bottom of the moving sleeve (42) is fixed to the extension block (33).

5. A flat wire winding mechanism for a winding machine according to claim 4, characterized in that: The sliding sleeve on the movable sleeve (42) is provided with a limiting guide rod (43), and the limiting guide rod (43) is fixed between the two vertical plates (12).

6. A flat wire winding mechanism for a winding machine according to claim 1, characterized in that: The elastic portion (35) comprises a pair of connecting rods (351) sliding on the positioning block (3); one end of the connecting rod (351) located inside the threading groove (31) is fixed to the clamping plate (32); one end of the connecting rod (351) located inside the mounting cavity (34) is fixed with a movable plate (352) matching with the driving portion 1 (36); and a spring (353) sleeved on the connecting rod (351) is fixed between the movable plate (352) and the positioning block (3).

7. A flat wire winding mechanism for a winding machine according to claim 6, characterized in that: When the movable plate (352) is made of iron, the driving part 1 (36) is an electromagnet.

8. A flat wire winding mechanism for a winding machine according to claim 6, characterized in that: When the movable plate (352) is separated from the surface of the driving part (36), the wire clamping plate (32) is provided with an air guide tube (37) connected to the installation cavity (34), and the other end of the air guide tube (37) is connected to an air cushion (38), and the air cushion (38) is fixed on the opposite side of the two wire clamping plates (32).

9. A flat wire winding mechanism for a winding machine according to claim 8, characterized in that: The air guide tube (37) is a hose structure.

10. A method for using a flat wire winding mechanism for a winding machine, applied to the flat wire winding mechanism for a winding machine according to claim 1, characterized in that: The following steps are involved: S1. First, fix the connecting base plate (1) on a row of workbenches of the external winding device, and then make the flat wire wound on the external winding device pass through the threading groove (31) and be wound on the winding roller (2); S2, starting the driving part 1 (36) to disconnect the elastic part (35), so that the two clamping plates (32) can clamp the flat wire connected to the threading groove (31) under the elastic force of the corresponding elastic part (35); S3. When winding, the winding roller (2) and the corresponding mechanism of the positioning block (3) are started, so that the positioning block (3) moves back and forth from left to right and then from right to left in the horizontal direction, so as to achieve uniform distribution of the flat wire on the winding roller (2).

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