Manufacturing Equipment and Process for a Braided Wire for Vehicles

Abstract

This application relates to a manufacturing device for vehicle-use braided wires, belonging to the technical field of vehicle-use wires. It includes a frame and a workbench. A braiding assembly is provided on the workbench, and a wire-receiving ring is fixed to the frame. A flywheel, a tension wheel, and two brackets are rotatably arranged on the frame. A first pressing wheel and a second pressing wheel are respectively rotatably arranged on the two brackets. The first pressing wheel and the second pressing wheel press the wire onto the wheel surface of the flywheel, and the wire is wound around the flywheel for at least two turns. For this manufacturing device and manufacturing process of vehicle-use braided wires, by contacting the wire with an arc surface, the wire is uniformly stretched, avoiding the unevenness 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. By setting the inner folding part to insert into the incision and then flattening and shaping the wire, the cooperation between the inner folding 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.

Description

Technical Field

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

[0002] A woven wire is used in new energy vehicles. It is woven from metal, 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 electrical conductivity and current-carrying capacity, and having good adaptability to large currents in the power supply circuit of electric vehicles. The metal woven wire can also be used for grounding.

[0003] The existing utility model patent with the publication number CN220856220U discloses a wire harness metal weaving device, including a workbench. The four corners of the bottom of the workbench are respectively fixedly connected with support legs. One end of the top of the workbench is fixedly connected with a support frame. One side of the top of the support frame is fixedly connected with a motor. The output shaft of the motor sleeved with a take-up reel. The end surface of the take-up reel away from the motor is sleeved with a plurality of take-up rollers through a threaded structure. The bottom of the take-up roller is provided with a movable cylinder. The top of the movable cylinder is fixedly connected with a wire supporting ring. The movable cylinder is movably sleeved with a movable opening. The movable opening is opened on the workbench. The inner wall of the movable opening is fixedly connected with a limiting plate. The limiting plate is slidably sleeved with a sliding opening. The sliding opening is opened on both sides of the bottom of the movable cylinder. An adjusting component is movably arranged on the limiting plate.

[0004] The existing utility model patent with the publication number CN218274115U discloses a flexible cable protection sleeve weaving machine, including a machine body. A workbench is arranged on the machine body, and a cable through hole is opened on the workbench; a plurality of groups of weaving components are arranged on the workbench and are circumferentially distributed with the cable through hole as the center. The weaving component includes a turntable rotatably arranged on the workbench; a first driving component for driving a plurality of turntables to rotate is arranged on the machine body; the winding component includes a winding shaft rotatably arranged on the machine body and above the workbench and a second driving component arranged on the machine body for driving the winding shaft to rotate; the take-up component includes a take-up reel arranged on the machine body and a take-up unit arranged on the machine body for winding and placing the cable in the take-up reel.

[0005] Regarding the above related technologies, the inventor believes that after the above equipment produces the woven wire, it can be made into a flat wire by flattening. However, the woven wire is not fully stretched and shaped, and has a retraction and elastic space, resulting in the shape being easily separated from the flat wire, and the cross-sectional shape returning to an oval under elasticity, which does not meet the standards of the flat wire. Summary of the Invention

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

[0007] A manufacturing device for a vehicle - used braided wire adopts the following technical solution:

[0008] A manufacturing device for a vehicle - used braided wire includes a frame and a workbench. A braiding assembly is arranged on the workbench. The braiding assembly includes a turntable and a bobbin for installing metal wires. The frame is fixed with a wire - taking - up ring. A flywheel, a tensioning wheel, and two brackets are rotatably arranged on the frame. A first pressing wheel and a second pressing wheel are respectively rotatably arranged on the two brackets. The first pressing wheel and the second pressing wheel press the wire onto the wheel surface of the flywheel. A plurality of guide grooves for the wire to enter are arranged on the wheel surface of the tensioning wheel. The wire is wound around the flywheel for at least two turns.

[0009] By adopting the above - mentioned technical solution, the braided wire first passes through the flywheel and the tensioning wheel, and the wire is wound around the outside of the flywheel and the tensioning wheel for several turns. During this process, the wire becomes flatter. The wire is stretched by the tensioning effect of the flywheel. Since the contact distance between the flywheel and the wire is relatively long, the stretching is uniform, so that the wire is stretched and shaped in the length direction.

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

[0011] By adopting the above - mentioned technical solution, a pulling force is applied to the bracket through the tension spring, so as to increase the pressure exerted by the first pressing wheel and the second pressing wheel on the wire.

[0012] Optionally, the wheel surface of the flywheel includes a first wheel surface and a second wheel surface. The average diameter of the first wheel surface is smaller than that of the second wheel surface. The wire first passes through the first wheel surface and then through the second wheel surface.

[0013] By adopting the above - mentioned technical solution, when the flywheel rotates, the linear velocity of the surface of the first wheel surface is greater than that of the second wheel surface. Thus, the wire on the surface of the second wheel surface will be pulled. And since the second wheel surface is in uniform contact with the wire in the length direction, the wire on the second wheel surface can be uniformly stretched, achieving a preliminary shaping effect.

[0014] Optionally, a middle cylinder is fixed at the center of the workbench. A circular limiting plate is fixed at the top of the middle cylinder. The limiting plate is located below the wire - taking - up ring and inside the enclosure of all metal wires.

[0015] By adopting the above - mentioned technical solution, the metal wires are limited by the limiting plate, preventing the metal wires from moving inward excessively.

[0016] Optionally, the middle cylinder is fixed with an extension rod. Two cutting knives are fixed at the top of the extension rod. The two cutting knives are inclined to the inner wall of the wire and are symmetrically distributed circumferentially with respect to the wire.

[0017] By adopting the above technical solution, after the metal wire forms a wire, two cutting knives cut incisions on the inner wall of the wire, and the cut-out part is the inner folding part.

[0018] Optionally, the first wheel surface is a conical surface, and the second wheel surface is a cylindrical surface; both the first pressing wheel and the second pressing wheel include a cylindrical section and a conical section. The conical section corresponds to the shape of the first wheel surface, and the distance between the conical section and the first wheel surface is greater than the distance between the cylindrical section and the second wheel surface.

[0019] By adopting the above technical solution, the conical section is used to pre-press the wire, and the cylindrical section is used to tightly press the wire.

[0020] Optionally, two first limiting rings are fixed on the conical section of the first pressing wheel, and two second limiting rings are fixed on the conical section of the second pressing wheel. The first limiting rings are close to the inner side of the first pressing wheel, and the second limiting rings are close to the outer side of the second pressing wheel.

[0021] By adopting the above technical solution, the space between the two first limiting rings is used for the wire to enter, and the space between the two second limiting rings is also used for the wire to enter. The two first limiting rings and the two second limiting rings are used to limit the position of the wire, so that the wire is kept on the designed path, avoiding spontaneous lateral deviation of the wire on the first wheel surface, thereby ensuring that the wire generates radial rolling and improving reliability.

[0022] Optionally, the frame is rotatably connected with two pressing rollers, and the two pressing rollers clamp the wire to guide the wire to move.

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

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

[0025] A manufacturing process for a vehicle-use braided wire uses the above-mentioned manufacturing equipment for a vehicle-use braided wire, and includes the following steps:

[0026] Step S1: The turntable of the braiding assembly moves, and the metal wire on the cartridge is braided while passing through the take-up ring to form a wire.

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

[0028] Step S21: The conical section of the first pressing wheel pre-presses the wire with the first wheel surface, and the conical section of the second pressing wheel pre-presses the wire with the first wheel surface.

[0029] Step S22: The cylindrical section of the first pressing wheel tightly presses the wire with the second wheel surface, and the cylindrical section of the second pressing wheel tightly presses the wire with the second wheel surface.

[0030] Step S3: After the wire leaves the flywheel, it passes between two pressing rollers. The wire is pressed by the pressing rollers and guided to move.

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

[0032] Optionally, in step S1, after the wire is formed from the metal wire, two cutting knives cut on the inner wall of the wire to form incisions, and the cut part is the inner folding part; in step S21, while the wire becomes flat on the first wheel surface, it generates radial rolling, so that the inner folding part is inserted into the opposite incision.

[0033] By adopting the above technical solution, by setting the inner folding part to insert into the incision and then flattening and shaping the wire, the cooperation between the inner folding 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 standard of the 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 this vehicle, the arc surface contacts the wire to uniformly stretch the wire, avoiding the uneven problem caused by direct stretching. The wire can be completely 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 into the incision and then flattening and shaping the wire, the cooperation between the inner folding 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a perspective view of a manufacturing equipment for a braided wire for a vehicle in an embodiment;

[0038] Figure 2 is Figure 1 an enlarged view of part A of

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

[0040] Figure 4 is a partial sectional view of the cooperation between the first pressing wheel, the second pressing wheel and the flywheel in an embodiment;

[0041] Figure 5 is a schematic diagram of the braiding state in an embodiment;

[0042] Figure 6 It is a diagram showing the cross-sectional shape change of the wire in the embodiment.

[0043] Description of reference numerals: 5, wire; 1, frame; 2, workbench; 21, braiding assembly; 22, wire take-up ring; 23, middle cylinder; 24, limiting plate; 25, extension rod; 26, cutter; 3, flywheel; 11, tensioning wheel; 12, pressing roller; 4, bracket; 41, first pressing wheel; 42, second pressing wheel; 13, middle shaft; 14, tension spring; 31, first wheel surface; 32, second wheel surface; 43, first limiting ring; 44, second limiting ring; 51, notch; 52, inner folding part. Detailed implementation manners

[0044] The following further describes the present application in detail with reference to the accompanying drawings.

[0045] Embodiment 1:

[0046] Referring to Figure 1 , this embodiment discloses a manufacturing device for vehicle 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 bobbin for installing metal wires. A wire take-up ring 22 is fixed to the frame 1. Among them, the braiding assembly 21 can be in any form in the prior art. While the turntable rotates, the metal wires at the bobbin are pulled obliquely upward and pass through the inside of the wire take-up ring 22, thereby completing the braiding. The just-completed braided wire 5 is in a circular tube shape.

[0047] Referring to Figure 1 and Figure 2 , a middle cylinder 23 is fixed at the center of the workbench 2. A circular limiting plate 24 is fixed to the top of the middle cylinder 23. The limiting plate 24 is located below the wire take-up ring 22 and inside the enclosure of all the metal wires. The metal wires are limited by the limiting plate 24 to prevent the metal wires from moving inward excessively. An extension rod 25 is fixed to the middle cylinder 23. The extension rod 25 passes upward through the inner hole of the wire take-up ring 22. Two cutters 26 are fixed to 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 circumferentially with respect to the wire 5.

[0048] Referring to Figure 1 , a flywheel 3 and a tensioning wheel 11 are rotatably arranged on the frame 1. The frame 1 is also rotatably connected with two pressing rollers 12. The two pressing rollers 12 clamp the wire 5 to guide the movement of the wire 5. The flywheel 3 and the pressing rollers 12 are driven by a motor to rotate. A plurality of guide grooves for the wire 5 to enter are provided on the wheel surface of the tensioning wheel 11. The wire 5 is wound around the flywheel 3 for at least two turns. The adjacent wires 5 are separated by the guide grooves to prevent the wires 5 on the flywheel 3 from being stacked or contacting. The just-braided wire 5 first passes through the flywheel 3 and the tensioning wheel 11. The wire 5 is wound around the outside of the flywheel 3 and the tensioning wheel 11 for several turns. During this process, the wire 5 becomes flatter and flatter. After being finally flattened by the pressing rollers 12, it is output as a flat wire product.

[0049] Two brackets 4 are rotatably arranged on the top of the frame 1. A first pressing wheel 41 and a second pressing wheel 42 are respectively rotatably arranged on the two brackets 4. The first pressing wheel 41 and the second pressing wheel 42 press the wire 5 onto the wheel surface of the flywheel 3. The woven wire 5 first passes through the first pressing wheel 41 and then through the second pressing wheel 42. The frame 1 is fixed with a central shaft 13. 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. By applying a pulling force to the bracket 4 through the tension spring 14, the pressure exerted by the first pressing wheel 41 and the second pressing wheel 42 on the wire 5 is increased.

[0050] Referring to Figure 3 and Figure 4 As shown in, the wheel surface of the flywheel 3 includes a first wheel surface 31 and a second wheel surface 32. The average diameter of the first wheel surface 31 is smaller than that of the second wheel surface 32. The wire 5 first passes through the first wheel surface 31 and then through the second wheel surface 32. When the flywheel 3 rotates, the linear velocity on the surface of the first wheel surface 31 is greater than that of the second wheel surface 32. Therefore, the wire 5 on the surface of the second wheel surface 32 will be pulled. And since the second wheel surface 32 is in uniform contact with the wire 5 in the length direction, the wire 5 on the second wheel surface 32 can be uniformly stretched, achieving a preliminary shaping effect. Subsequently, the wire 5 is wound around the first wheel surface 31, and the wire 5 is further stretched through the tensioning action of the first wheel surface 31. Since the contact distance between the first wheel surface 31 and the wire 5 is relatively long, the stretching is uniform, and the wire 5 is stretched and shaped in the length direction.

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

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

[0053] Embodiment 2:

[0054] A manufacturing process for a vehicle-use braided wire uses the manufacturing equipment for a vehicle-use braided wire in Embodiment 1 and includes the following steps:

[0055] Step S1: Referring to Figure 5 and Figure 6, with the rotation of the turntable of the knitting assembly 21, the wire on the barrel is knitted while passing through the wire take-up ring 22 to form the wire 5; after the wire forms the wire 5, two cutting knives 26 cut the inner wall of the wire 5 to form a cut 51, and the cut part is the inner folding part 52.

[0056] Step S2: Refer to Figure 1 and Figure 3 , the flywheel 3 rotates. After the wire 5 passes through the first wheel surface 31 and the tension wheel 11, it winds around the second wheel surface 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 first pressing wheel 41 pre-presses the wire 5 with the first wheel surface 31, and the conical section of the second pressing wheel 42 pre-presses the wire 5 with the first wheel surface 31. Through the combined action of the conical first wheel surface 31 and the tension of the wire 5, the frictional force between the wire 5 and the first wheel surface 31 is large enough to prevent slipping. While the wire 5 becomes flattened on the first wheel surface 31, it generates radial rolling, causing the inner folding part 52 to insert into the opposite cut 51 (refer to Figure 6 ). It should be noted that the distance between the conical section of the second pressing wheel 42 and the first wheel surface 31 is smaller than the distance between the conical section of the first pressing wheel 41 and the first wheel surface 31, so that the wire 5 can be further flattened after the inner folding part 52 is inserted into the cut 51, thus maintaining this state.

[0058] Two first limiting rings 43 and two second limiting rings 44 are used to limit the position of the wire 5, so that the wire 5 remains on the designed path, preventing the wire 5 from generating spontaneous lateral displacement on the first wheel surface 31, thereby ensuring that the wire 5 generates radial rolling and improving reliability.

[0059] Step S22: Refer to Figure 1 , after the wire 5 passes through the tension wheel 11, it continues to wind around the outside of the flywheel 3. The cylindrical section of the first pressing wheel 41 presses the wire 5 tightly against the second wheel surface 32, and the cylindrical section of the second pressing wheel 42 presses the wire 5 tightly against the second wheel surface 32; the first pressing wheel 41 and the second pressing wheel 42 press the wire 5 at least twice to increase the degree of flattening of the wire 5.

[0060] Step S3: After the wire 5 leaves the flywheel 3, it passes between two pressing rollers 12. The pressing rollers 12 press the wire 5 tightly and guide the movement of the wire 5. The distance between the two pressing rollers 12 is small. The wire 5 is finally flattened and shaped by the pressing rollers 12, and then the flat wire product is output.

[0061] Through the manufacturing equipment and manufacturing process of the woven wire for vehicles, the arc surface of the flywheel 3 contacts the wire 5 to uniformly stretch the wire 5, avoiding the unevenness problem caused by direct stretching. The wire 5 can be fully stretched and shaped, reducing retraction and elastic space, thus maintaining the shape of the flat wire.

[0062] On the other hand, by setting the inner folding part 52 to insert into the incision 51 and then flattening and shaping the wire 5, the cooperation between the inner folding part 52 and the incision 51 greatly increases the difficulty of separating parts in 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 thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A manufacturing device for a vehicle - used braided wire, comprising a frame (1) and a workbench (2). A braiding assembly (21) is provided on the workbench (2), and the braiding assembly (21) includes a turntable and a bobbin for installing metal wires. The frame (1) is fixed with a wire - collecting ring (22), and it is characterized in that: A flywheel (3), a tension pulley (11), and two brackets (4) are rotatably arranged on the frame (1). A first pressing wheel (41) and a second pressing wheel (42) are respectively rotatably arranged on the two brackets (4). The first pressing wheel (41) and the second pressing wheel (42) press the wire (5) against 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 pulley (11). The wire (5) is wound around the flywheel (3) at least two turns. The wheel surface of the flywheel (3) includes a first wheel surface (31) and a second wheel surface (32). The average diameter of the first wheel surface (31) is smaller than the average diameter of the second wheel surface (32). The wire (5) first passes through the first wheel surface (31) and then through the second wheel surface (32). A middle cylinder (23) is fixed at the center of the workbench (2). A circular limiting plate (24) is fixed at the top of the middle cylinder (23). The limiting plate (24) is located below the wire collecting ring (22). The limiting plate (24) is located inside the enclosure of all the metal wires. The middle cylinder (23) is fixed with an extension rod (25). Two cutting knives (26) are fixed at the top of the extension rod (25). The two cutting knives (26) are inclined to the inner wall of the wire (5) and are symmetrically distributed circumferentially with respect to the wire (5).

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

3. The manufacturing equipment of a vehicle woven wire according to claim 1, characterized in that: The first wheel surface (31) is a conical surface, and the second wheel surface (32) is a cylindrical surface. Both the first pressing wheel (41) and the second pressing wheel (42) include a cylindrical section and a conical section. The conical section corresponds to the shape of the first wheel surface (31). The distance between the conical section and the first wheel surface (31) is greater than the distance between the cylindrical section and the second wheel surface (32).

4. The manufacturing equipment of a vehicle woven wire according to claim 3, characterized in that: Two first limiting rings (43) are fixed on the conical section of the first pressing wheel (41). Two second limiting rings (44) are fixed on the conical section of the second pressing wheel (42). The first limiting rings (43) are close to the inner side of the first pressing wheel (41), and the second limiting rings (44) are close to the outer side of the second pressing wheel (42).

5. The manufacturing equipment of a vehicle - used braided wire according to claim 1, characterized in that: Two pressing rollers (12) are rotatably connected to the frame (1). The two pressing rollers (12) clamp the wire (5) to guide the movement of the wire (5).

6. A manufacturing process for a vehicle - used braided wire, characterized in that: Using a manufacturing device for a vehicle - used braided wire according to any one of claims 1 - 5, comprising the following steps: Step S1: The turntable of the braiding assembly (21) moves, and the metal wires on the material cylinder are braided while passing through the wire collecting ring (22) to form the wire (5). Step S2: The flywheel (3) rotates. After the wire (5) passes through the first wheel surface (31) and the tension pulley (11), it winds around the second wheel surface (32) and the tension pulley (11) for several turns, including: Step S21: The conical section of the first pressing wheel (41) pre - presses the wire (5) with the first wheel surface (31), and the conical section of the second pressing wheel (42) pre - presses the wire (5) with the first wheel surface (31). Step S22: The cylindrical section of the first pressing wheel (41) presses the wire (5) against the second wheel surface (32), and the cylindrical section of the second pressing wheel (42) presses the wire (5) against the second wheel surface (32). Step S3: After the wire (5) leaves the flywheel (3), it passes between two pressing rollers (12). The pressing rollers (12) press the wire (5) and guide the movement of the wire (5).

7. The manufacturing process of a vehicle woven wire according to claim 6, characterized in that: In Step S1, after the wire is formed into the wire (5), two cutting blades (26) cut the inner wall of the wire (5) to form a cut (51), and the cut-out part is the inner folded part (52). In Step S21, while the wire (5) becomes flattened on the first wheel surface (31), it rolls radially, causing the inner folded part (52) to insert into the opposite cut (51).

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