Manufacturing equipment and manufacturing process of braided wire for vehicle

Abstract

The invention relates to a manufacturing device of a braided wire for a vehicle, and relates to the technical field of wires for the vehicle, the manufacturing device comprises a rack and a workbench, the workbench is provided with a braiding assembly, the rack is fixedly provided with a take-up ring, the rack is rotatably provided with a flywheel, a tensioning wheel and two supports, and the two supports are rotatably provided with a first pressing wheel and a second pressing wheel respectively. The first pressing wheel and the second pressing wheel press the wire on the wheel face of the flywheel, and the wire is wound on the flywheel by at least two circles. According to the manufacturing equipment and the manufacturing process of the braided wire for the vehicle, the arc surface is in contact with the wire, the wire is uniformly stretched, the problem of non-uniformity caused by direct stretching is avoided, the wire can be completely stretched and shaped, retraction and elastic space is reduced, and therefore the shape of a flat wire is maintained; the infolding part is inserted into the notch, then the wire is flattened and shaped, the infolding part and the notch are matched to greatly increase the separation difficulty of the middle part of the flat wire, and the shape stability of the flat wire is further improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle wires, and in particular to a manufacturing device and a manufacturing process for a vehicle braided wire. Background Art

[0002] A braided wire is used in new energy vehicles. It is made of metal and has high strength and good bending performance. After being made into a flat wire, it can pass through narrow gaps while maintaining a large cross-sectional area, making it have excellent conductivity and current carrying capacity. It has good adaptability to the large current in the power supply circuit of electric vehicles. The metal braided wire can also be used for grounding.

[0003] The existing utility model patent with announcement number CN220856220U discloses a wire harness metal braiding equipment, including a workbench, the four corners of the bottom of the workbench are respectively fixedly connected to support legs, one end of the top of the workbench is fixedly connected to the support frame, one side of the top of the support frame is fixedly connected to the motor, the output shaft sleeve of the motor receives the wire drum, the end face of the wire drum away from the motor is connected to a plurality of wire taking-up rollers through a threaded structure, a movable cylinder is provided at the bottom of the wire taking-up roller, the top of the movable cylinder is fixedly connected to a wire support ring, the movable cylinder is movably connected to a movable opening, the movable opening is opened on the workbench, the inner wall of the movable opening is fixedly connected to a limit plate, the limit plate is slidably connected to a sliding opening, the sliding opening is opened on both sides of the bottom of the movable cylinder, and an adjustment component is movably provided on the limit plate.

[0004] The existing utility model patent with announcement number CN218274115U discloses a flexible cable protective cover braiding machine, including a machine body, a workbench is provided on the machine body, and a cable through-hole is opened on the workbench; a plurality of braiding components are arranged on the workbench and are distributed in a circle with the cable through-hole as the center, and the braiding components include a turntable rotatably arranged on the workbench; a first driving component for driving multiple turntables to rotate is arranged on the machine body; a winding component includes a winding shaft rotatably arranged on the machine body and located above the workbench, and a second driving component arranged on the machine body to drive the winding shaft to rotate; a wire taking-up component includes a wire taking-up reel arranged on the machine body and a wire taking-up unit arranged on the machine body for winding the cable and placing it in the wire taking-up reel.

[0005] Regarding the above-mentioned related technologies, the inventor believes that after the above-mentioned equipment produces braided wires, they can be made into flat wires by flattening. However, the braided wires are not fully stretched and shaped, and have retraction and elastic space, which makes the shape easily deviate from the flat wire. The cross-sectional shape returns to an elliptical shape under elasticity, which does not meet the standards of flat wires. Summary of the invention

[0006] The present application provides a manufacturing device and a manufacturing process for a braided wire for a vehicle, which can fully and evenly stretch the braided wire, shape the flat wire, and avoid elastic deformation from deviating from the shape of the flat wire.

[0007] The present application provides a manufacturing device for a braided wire for a vehicle, which adopts the following technical solution:

[0008] A manufacturing device for automotive braided wires comprises a frame and a workbench. The workbench is provided with a braiding assembly, the braiding assembly comprises a turntable and a barrel for installing metal wires, the frame is fixed with a wire take-up ring, the frame is rotatably provided with a flywheel, a tensioning wheel, and two brackets, the two brackets are rotatably provided with a first pressing wheel and a second pressing wheel, the first pressing wheel and the second pressing wheel press the wire onto the wheel surface of the flywheel, the wheel surface of the tensioning wheel is provided with a plurality of guide grooves for the wire to enter, and the wire is wound around the flywheel at least twice.

[0009] By adopting the above technical solution, the braided wire first passes through the flywheel and the tension wheel, and the wire is wound around the flywheel and the tension wheel for several weeks, becoming flatter in the process. The wire is stretched by the tensioning effect of the flywheel, and since the flywheel and the wire are in contact for a long distance, the stretching is uniform, so that the wire is stretched in the length direction and thus shaped.

[0010] Optionally, the frame is fixed with a central axis, the flywheel is rotatably connected to the central axis through a central hole, and a tension spring is connected between the bracket and the central axis.

[0011] By adopting the above technical solution, a tension force is applied to the bracket through the tension spring, thereby increasing the pressure of the first and second pressure wheels acting on the wire.

[0012] Optionally, the wheel surface of the flywheel includes wheel surface one and wheel surface two, the average diameter of wheel surface one is smaller than the average diameter of wheel surface two, and the wire first passes through wheel surface one and then passes through wheel surface two.

[0013] By adopting the above technical solution, when the flywheel rotates, the linear speed of the surface of wheel surface one is greater than that of wheel surface two, so that the wire on the surface of wheel surface two will be pulled, and because wheel surface two is evenly in contact with the wire in the length direction, the wire on wheel surface two can be evenly stretched, achieving a preliminary shaping effect.

[0014] Optionally, a middle cylinder is fixed at the center of the workbench, a circular limit plate is fixed on the top of the middle cylinder, the limit plate is located below the wire take-up ring, and the limit plate is located on the inner side surrounded by all metal wires.

[0015] By adopting the above technical solution, the metal wire is limited by the limiting plate to prevent the metal wire from moving excessively inward.

[0016] Optionally, an extension rod is fixed to the middle cylinder, and two cutters are fixed to the top of the extension rod. The two cutters are inclined to the inner wall of the conductor and are symmetrically distributed around the conductor.

[0017] By adopting the above technical solution, after the metal wire is formed into a conductor, two cutters cut the inner wall of the conductor to form an incision, and the cut portion is the inner folded portion.

[0018] Optionally, the wheel surface one is a conical surface, and the wheel surface two is a cylindrical surface; the pressure wheel one and the pressure wheel two both include a cylindrical section and a conical section, the conical section corresponds to the shape of the wheel surface one, and the distance between the conical section and the wheel surface one is greater than the distance between the cylindrical section and the wheel surface two.

[0019] By adopting the above technical solution, the conical section is used for pre-pressing the conductor, and the cylindrical section is used for compacting the conductor.

[0020] Optionally, two limiting rings 1 are fixed on the conical section of the pressing wheel 1, and two limiting rings 2 are fixed on the conical section of the pressing wheel 2, wherein the limiting ring 1 is close to the inner side of the pressing wheel 1, and the limiting ring 2 is close to the outer side of the pressing wheel 2.

[0021] By adopting the above technical solution, one of the two limit rings is used for allowing the wire to enter, and the other two limit rings are also used for allowing the wire to enter. The two limit rings one and the two limit rings two are used to limit the position of the wire so that the wire remains on the designed path, avoiding spontaneous lateral deviation of the wire on the wheel surface one, thereby ensuring radial rolling of the wire and improving reliability.

[0022] Optionally, the frame is rotatably connected to two clamping rollers, and the two clamping rollers clamp the wire to pull the wire to move.

[0023] By adopting the above technical solution, the conductor after passing through the flywheel is finally shaped by the pressing roller and then output as a flat wire product.

[0024] In a second aspect, the present application provides a manufacturing process for a braided wire for a vehicle, which adopts the following technical solution:

[0025] A manufacturing process of a braided wire for a vehicle, using the above-mentioned manufacturing equipment for a braided wire for a vehicle, comprises the following steps:

[0026] Step S1: The turntable of the braiding assembly moves, and the metal wire on the barrel is braided while passing through the wire collection ring to form a conductor;

[0027] Step S2: The flywheel rotates, and the wire passes through the first wheel surface and the tension wheel, and then winds around the second wheel surface and the tension wheel for several turns, including:

[0028] Step S21: pre-pressing the conductor between the conical section of the first pressing wheel and the wheel surface, and pre-pressing the conductor between the conical section of the second pressing wheel and the wheel surface;

[0029] Step S22: the cylindrical section of the first pressing wheel and the second wheel surface compress the conductive wire, and the cylindrical section of the second pressing wheel and the second wheel surface compress the conductive wire;

[0030] Step S3: After leaving the flywheel, the conductor passes between two clamping rollers, and the clamping rollers clamp the conductor and pull the conductor to move.

[0031] By adopting the above technical solution and the above process, the production of flat wire is completed. The arc surface of the flywheel contacts the wire and the wire is evenly stretched, avoiding the uneven problem caused by direct stretching. The wire can be fully stretched and shaped, reducing retraction and elastic space, thereby maintaining the shape of the flat wire.

[0032] Optionally, in step S1, after the metal wire is formed into a conductor, two cutters cut the inner wall of the conductor to form an incision, and the cut portion is the inner folded portion; in step S21, the conductor flattens on the wheel surface and produces radial rolling, so that the inner folded portion is inserted into the opposite incision.

[0033] By adopting the above technical solution, by setting the inner folded part to insert the incision and then flattening the wire to shape it, the cooperation between the inner folded part and the incision greatly increases the difficulty of separating the middle part of the flat wire, further improving the shape stability of the flat wire and making it meet the standards of flat wire.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. Through the manufacturing equipment and manufacturing process of the braided wire for the vehicle, the wire is evenly stretched by the arc surface in contact with the wire, avoiding the uneven problem caused by direct stretching. The wire can be fully stretched and shaped, reducing the retraction and elastic space, thereby maintaining the shape of the flat wire;

[0036] 2. By setting the inner folding part to insert the incision and then flattening the wire to shape it, the cooperation between the inner folding part and the incision greatly increases the difficulty of separating the middle part of the flat wire, and further improves the shape stability of the flat wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a perspective view of a manufacturing device for a vehicle braided wire according to an embodiment;

[0038] Figure 2 yes Figure 1 A magnified image of point A;

[0039] Figure 3 is a top view of a flywheel, a first pressing wheel, and a second pressing wheel of an embodiment;

[0040] Figure 4 It is a partial cross-sectional view of the cooperation between the first and second pressing wheels and the flywheel of the embodiment;

[0041] Figure 5 is a schematic diagram of a knitting state of an embodiment;

[0042] Figure 6 2 is a diagram showing changes in the cross-sectional shape of the wire according to the embodiment.

[0043] Explanation of the reference numerals in the accompanying drawings: 5. conductor; 1. frame; 2. workbench; 21. braiding assembly; 22. take-up ring; 23. middle cylinder; 24. limit plate; 25. extension rod; 26. cutter; 3. flywheel; 11. tension wheel; 12. pressure roller; 4. bracket; 41. pressure wheel one; 42. pressure wheel two; 13. middle shaft; 14. tension spring; 31. wheel surface one; 32. wheel surface two; 43. limit ring one; 44. limit ring two; 51. incision; 52. inner folding part. DETAILED DESCRIPTION

[0044] The present application is further described in detail below in conjunction with the accompanying drawings.

[0045] Embodiment 1:

[0046] Reference Figure 1 This embodiment discloses a manufacturing device for automotive braided wires, including a frame 1 and a workbench 2. A braiding assembly 21 is provided on the workbench 2. The braiding assembly 21 includes a turntable and a barrel for installing metal wires. A wire take-up ring 22 is fixed to the frame 1. The braiding assembly 21 is any form in the prior art. When the turntable rotates, the metal wire at the barrel is pulled obliquely upward and passes through the wire take-up ring 22, thereby completing the braiding. The wire 5 that has just been braided is in a round tube shape.

[0047] Reference Figure 1 and Figure 2 A middle cylinder 23 is fixed at the center of the workbench 2. A circular limit plate 24 is fixed on the top of the middle cylinder 23. The limit plate 24 is located below the wire take-up ring 22. The limit plate 24 is located inside the area surrounded by all the wires. The limit plate 24 limits the position of the wires to prevent them from moving excessively inward. An extension rod 25 is fixed to the middle cylinder 23. The extension rod 25 passes through the inner hole of the wire take-up ring 22 upward. Two cutters 26 are fixed on the top of the extension rod 25. The cutters 26 are made of high-hardness alloy knives. The two cutters 26 are inclined to the inner wall of the wire 5 and are symmetrically distributed around the wire 5.

[0048] Reference Figure 1 The frame 1 is rotatably provided with a flywheel 3 and a tension wheel 11. The frame 1 is also rotatably connected with two clamping rollers 12. The two clamping rollers 12 clamp the wire 5 and pull the wire 5 to move. The flywheel 3 and the clamping roller 12 are driven to rotate by a motor. The wheel surface of the tension wheel 11 is provided with a plurality of guide grooves for the wire 5 to enter. The wire 5 is wound around the flywheel 3 for at least two times. The adjacent wires 5 are separated by the guide grooves to avoid overlapping or contact of the wires 5 on the flywheel 3. The braided wire 5 first passes through the flywheel 3 and the tension wheel 11. The wire 5 is wound around the flywheel 3 and the tension wheel 11 for several times. In this process, the wire 5 becomes flatter and is finally flattened by the clamping roller 12 and output as a flat wire product.

[0049] Two brackets 4 are rotatably provided on the top of the frame 1, and pressure wheels 1 41 and 42 are rotatably provided on the two brackets 4, respectively. Pressure wheels 1 41 and 42 press the wire 5 on the wheel surface of the flywheel 3, and the braided wire 5 first passes through pressure wheel 1 41 and then passes through pressure wheel 2 42. A central shaft 13 is fixed to the frame 1, and the flywheel 3 is rotatably connected to the central shaft 13 through a central hole. A tension spring 14 is connected between the bracket 4 and the central shaft 13, and tension is applied to the bracket 4 through the tension spring 14, thereby increasing the pressure of pressure wheels 1 41 and 42 on the wire 5.

[0050] Reference Figure 3 and Figure 4 The wheel surface of the flywheel 3 includes a wheel surface 1 31 and a wheel surface 2 32. The average diameter of the wheel surface 1 31 is smaller than the average diameter of the wheel surface 2 32. The wire 5 first passes through the wheel surface 1 31 and then passes through the wheel surface 2 32. When the flywheel 3 rotates, the linear velocity of the surface of the wheel surface 1 31 is greater than that of the wheel surface 2 32, so that the wire 5 on the surface of the wheel surface 2 32 will be pulled, and because the wheel surface 2 32 and the wire 5 are evenly abutted in the length direction, the wire 5 on the wheel surface 2 32 can be evenly stretched, which has the effect of preliminary shaping. The wire 5 is then wound onto the wheel surface 1 31, and the wire 5 is further stretched by the tensioning effect of the wheel surface 1 31. Since the wheel surface 1 31 and the wire 5 are kept in contact for a long distance, the stretching is uniform, so that the wire 5 is stretched in the length direction and shaped.

[0051] The wheel surface 1 31 is a conical surface, and the wheel surface 2 32 is a cylindrical surface; the pressure wheel 1 41 and the pressure wheel 2 42 both include a cylindrical section and a conical section, the conical section corresponds to the shape of the wheel surface 1 31, and the distance between the conical section and the wheel surface 1 31 is greater than the distance between the cylindrical section and the wheel surface 2 32. The conical section is used to pre-press the wire 5, and the cylindrical section is used to compress the wire 5.

[0052] Two limiting rings 1 43 are fixed on the conical section of the pressing wheel 1 41, and the space between the two limiting rings 1 43 is used for the wire 5 to enter. Two limiting rings 2 44 are fixed on the conical section of the pressing wheel 2 42, and the space between the two limiting rings 2 44 is also used for the wire 5 to enter, wherein the limiting ring 1 43 is close to the inner side of the pressing wheel 1 41, and the limiting ring 2 44 is close to the outer side of the pressing wheel 2 42.

[0053] Embodiment 2:

[0054] A manufacturing process of a vehicle braided wire, using a manufacturing device of a vehicle braided wire in the first embodiment, comprises the following steps:

[0055] Step S1: Refer to Figure 5 and Figure 6The turntable of the braiding assembly 21 moves, and the metal wire on the barrel is braided while passing through the wire take-up ring 22 to form the conductor 5; after the metal wire forms the conductor 5, the two cutters 26 cut the inner wall of the conductor 5 to form an incision 51, and the cut portion is the inner folded portion 52.

[0056] Step S2: Refer to Figure 1 and Figure 3 , the flywheel 3 rotates, the wire 5 passes through the wheel surface 1 31 and the tension wheel 11, and then winds around the wheel surface 2 32 and the tension wheel 11 for several turns, including:

[0057] Step S21: Refer to Figure 3 and Figure 4 The conical section of the pressing wheel 1 41 and the wheel surface 1 31 pre-press the wire 5, and the conical section of the pressing wheel 2 42 and the wheel surface 1 31 pre-press the wire 5. Due to the combined effect of the conical wheel surface 1 31 and the wire 5 being tightened, the friction between the wire 5 and the wheel surface 1 31 is large to prevent slipping. The wire 5 flattens on the wheel surface 1 31 and rolls radially, so that the inner fold 52 is inserted into the opposite incision 51 (refer to Figure 6 It should be noted that the distance between the conical section of the second pressing wheel 42 and the wheel surface 1 31 is smaller than the distance between the conical section of the first pressing wheel 41 and the wheel surface 1 31 , so that the wire 5 can be further flattened after the inner folded portion 52 is inserted into the incision 51 , thereby maintaining this state.

[0058] The two limiting rings 1 43 and the two limiting rings 2 44 are used to limit the position of the wire 5 so that the wire 5 remains on the designed path and avoids spontaneous lateral deviation of the wire 5 on the wheel surface 1 31, thereby ensuring radial rolling of the wire 5 and improving reliability.

[0059] Step S22: Refer to Figure 1 After passing through the tensioning wheel 11, the conductor 5 continues to be wound outside the flywheel 3, and the conductor 5 is pressed tightly between the cylindrical section of the pressure wheel 1 41 and the wheel surface 2 32, and the conductor 5 is pressed tightly between the cylindrical section of the pressure wheel 2 42 and the wheel surface 2 32; the pressure wheels 1 41 and 2 42 press the conductor 5 at least twice to increase the degree of flattening of the conductor 5.

[0060] Step S3: After leaving the flywheel 3, the conductor 5 passes between the two pressing rollers 12, and the pressing rollers 12 press the conductor 5 and pull the conductor 5 to move. The distance between the two pressing rollers 12 is small, and the pressing rollers 12 perform the final flattening and shaping of the conductor 5, and then output the flat wire product.

[0061] Through the manufacturing equipment and manufacturing process of the vehicle braided wire, the arc surface of the flywheel 3 contacts the wire 5, and the wire 5 is evenly stretched, avoiding the uneven problem caused by direct stretching. The wire 5 can be fully stretched and shaped, reducing the retraction and elastic space, thereby maintaining the shape of the flat wire.

[0062] On the other hand, by inserting the inner folded portion 52 into the cutout 51 and then flattening the conductor 5, the cooperation between the inner folded portion 52 and the cutout 51 greatly increases the difficulty of separating the middle part of the flat wire, further improving the shape stability of the flat wire.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A manufacturing device for a braided wire for a vehicle, comprising a frame (1) and a workbench (2), wherein a braiding assembly (21) is provided on the workbench (2), wherein the braiding assembly (21) comprises a turntable and a barrel for installing a metal wire, and a wire take-up ring (22) is fixed to the frame (1), characterized in that: The frame (1) is rotatably provided with a flywheel (3), a tension wheel (11), and two brackets (4); a first pressure wheel (41) and a second pressure wheel (42) are rotatably provided on the two brackets (4); the first pressure wheel (41) and the second pressure wheel (42) press the wire (5) onto the wheel surface of the flywheel (3); a plurality of guide grooves for the wire (5) to enter are provided on the wheel surface of the tension wheel (11); and the wire (5) is wound around the flywheel (3) for at least two turns.

2. The manufacturing equipment of a braided wire for a vehicle according to claim 1, characterized in that: The frame (1) is fixed with a central shaft (13); the flywheel (3) is rotatably connected to the central shaft (13) via a central hole; and a tension spring (14) is connected between the bracket (4) and the central shaft (13).

3. The manufacturing equipment of a vehicle braided wire according to claim 1, characterized in that: The wheel surface of the flywheel (3) comprises a wheel surface one (31) and a wheel surface two (32), the average diameter of the wheel surface one (31) is smaller than the average diameter of the wheel surface two (32), and the wire (5) first passes through the wheel surface one (31) and then passes through the wheel surface two (32).

4. The manufacturing equipment of the vehicle braided wire according to claim 3 is characterized in that: A middle cylinder (23) is fixed at the center of the workbench (2), a circular limit plate (24) is fixed on the top of the middle cylinder (23), the limit plate (24) is located below the wire take-up ring (22), and the limit plate (24) is located on the inner side surrounded by all metal wires.

5. The manufacturing equipment of the vehicle braided wire according to claim 4, characterized in that: The middle cylinder (23) is fixed with an extension rod (25), and two cutters (26) are fixed on the top of the extension rod (25). The two cutters (26) are inclined to the inner wall of the conductor (5) and are symmetrically distributed around the conductor (5).

6. The manufacturing equipment of the vehicle braided wire according to claim 5, characterized in that: The wheel surface one (31) is a conical surface, and the wheel surface two (32) is a cylindrical surface; the pressure wheel one (41) and the pressure wheel two (42) both include a cylindrical section and a conical section, the conical section corresponds to the shape of the wheel surface one (31), and the distance between the conical section and the wheel surface one (31) is greater than the distance between the cylindrical section and the wheel surface two (32).

7. The manufacturing equipment of the vehicle braided wire according to claim 6, characterized in that: Two limiting rings 1 (43) are fixed on the conical section of the pressing wheel 1 (41), and two limiting rings 2 (44) are fixed on the conical section of the pressing wheel 2 (42), wherein the limiting ring 1 (43) is close to the inner side of the pressing wheel 1 (41), and the limiting ring 2 (44) is close to the outer side of the pressing wheel 2 (42).

8. The manufacturing equipment of the vehicle braided wire according to claim 1, characterized in that: The frame (1) is rotatably connected to two clamping rollers (12), and the two clamping rollers (12) clamp the wire (5) to pull the wire (5) to move.

9. A manufacturing process of a braided wire for a vehicle, characterized in that: A manufacturing device for a vehicle braided wire according to any one of claims 1 to 8 comprises the following steps: Step S1: The turntable of the braiding assembly (21) moves, and the metal wire on the barrel is braided while passing through the wire take-up ring (22) to form a conductor (5); Step S2: The flywheel (3) rotates, and the wire (5) passes through the first wheel surface (31) and the tension wheel (11), and then is wound around the second wheel surface (32) and the tension wheel (11) for several turns, including: Step S21: pre-pressing the conductor wire (5) between the conical section of the first pressing wheel (41) and the wheel surface (31), and pre-pressing the conductor wire (5) between the conical section of the second pressing wheel (42) and the wheel surface (31); Step S22: The conductive wire (5) is compressed between the cylindrical section of the first pressing wheel (41) and the second wheel surface (32), and the conductive wire (5) is compressed between the cylindrical section of the second pressing wheel (42) and the second wheel surface (32); Step S3: After leaving the flywheel (3), the conductor (5) passes between two pressing rollers (12), and the pressing rollers (12) press the conductor (5) and pull the conductor (5) to move.

10. The manufacturing process of a vehicle braided wire according to claim 9, characterized in that: In step S1, after the metal wire is formed into a conductor (5), two cutters (26) cut the inner wall of the conductor (5) to form an incision (51), and the cut portion is the inner folded portion (52); In step S21, the wire (5) flattens on the wheel surface (31) and rolls radially, so that the inner folded portion (52) is inserted into the opposite incision (51).

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