Copper wire manufacturing method

Abstract

The present invention provides a copper wire manufacturing method that can produce copper wire of a desired length. [Solution] The copper wire manufacturing method is a method for manufacturing copper wire using a stripping device 130 for stripping the coating 20 from a copper wire 10, a conveying device 140 for conveying the copper wire 10 from which the coating 20 has been stripped, and a cutting device 150 for cutting the copper wire 10. The stripping device 130, the conveying device 140, and the cutting device 150 are arranged in order toward the conveying direction of the copper wire 10. The stripping device 130 and the conveying device 140 are arranged to be movable along the conveying direction. The distance between the holding position of the copper wire 10 in the conveying device 140 and the cutting position of the copper wire 10 in the cutting device 150 is set as a set distance. The conveying device 140 is arranged such that the set distance ≤ the desired wire length of the copper wire 10 × N (where N is a positive integer). The stripping device 130 cuts the coating 20 at a position based on the desired wire length of the copper wire 10.

Description

Technical Field

[0001] The present invention relates to a method for manufacturing copper wires.

Background Art

[0002] Patent Document 1 describes a film peeling method having a cutting step of irradiating a laser along an end of a film peeling range to form a cut portion on the surface of the film, and a peeling step of peeling the film in the peeling range by relatively moving a peeling blade.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] A copper wire manufacturing system includes a peeling device for peeling the coating of a copper wire, a conveying device for conveying the copper wire with the coating peeled off, and a cutting device for cutting the copper wire. The length of the copper wire that can be manufactured is limited by the distance from the copper wire holding position of the conveying device to the copper wire cutting position of the cutting device when the conveying device and the cutting device are closest to each other. Therefore, for example, when using a copper wire manufacturing system for manufacturing copper wires for a segmented stator, it is not possible to manufacture copper wires for a modular stator that are shorter than the copper wires for a segmented stator.

[0005] The present invention has been made to solve such problems, and an object thereof is to provide a copper wire manufacturing method capable of manufacturing copper wires of a desired length.

Means for Solving the Problems

[0006] The copper wire manufacturing method according to the first aspect of the present invention is A method for manufacturing copper wire, comprising a stripping device for stripping the coating from a copper wire, a conveying device for conveying the copper wire from which the coating has been stripped, and a cutting device for cutting the copper wire, The stripping device, the conveying device, and the cutting device are arranged in order in the direction of conveying the copper wire. The peeling device and the conveying device are arranged to be movable along the conveying direction. The distance between the copper wire holding position of the conveying device and the copper wire cutting position of the cutting device is set as the distance. The conveying device is arranged such that the set distance ≤ the desired length of the copper wire × N (where N is a positive integer), In the stripping device, the coating is cut at a position based on the desired length of the copper wire. It is a method. [Effects of the Invention]

[0007] According to the copper wire manufacturing method of the first aspect of the present invention, the conveying device is arranged such that the set distance ≤ the desired length of the copper wire × N (where N is a positive integer). As a result, there are N copper wires of the desired length between the holding position of the conveying device and the cutting position of the cutting device. Therefore, by conveying the copper wire in the conveying direction for the desired length of copper wire, the cutting device 150 can cut the copper wire at the desired length intervals. Furthermore, the stripping device cuts the coating at a position based on the desired length of copper wire. Therefore, the length of copper wire that can be manufactured is not limited by the distance (set distance) from the holding position of the copper wire of the conveying device to the cutting position of the copper wire of the cutting device. Thus, a copper wire manufacturing method that can manufacture copper wire of a desired length can be provided. [Brief explanation of the drawing]

[0008] [Figure 1] This figure illustrates an example of a copper wire manufacturing method according to the first embodiment of the present invention. [Figure 2] This figure illustrates an example of manufacturing a copper wire shorter than a set distance in the copper wire manufacturing method according to the first embodiment of the present invention. [Figure 3]This figure illustrates an example of manufacturing a copper wire longer than a set distance in the copper wire manufacturing method according to the first embodiment of the present invention. [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the following embodiments. Also, for clarity of explanation, the following description and drawings have been simplified as appropriate.

[0010] (First Embodiment) The copper wire manufacturing method according to the first embodiment will be described below with reference to the drawings. Figure 1 is a diagram illustrating an example of the copper wire manufacturing method according to the first embodiment. Specifically, the copper wire manufacturing method according to the first embodiment uses a copper wire manufacturing system 100 that includes a stripping device 130 for stripping the coating 20 from the copper wire 10, a conveying device 140 for conveying the copper wire 10 from which the coating 20 has been stripped, and a cutting device 150 for cutting the copper wire 10. In addition, as shown in Figure 1, the copper wire manufacturing method according to the first embodiment uses an unwinding device 110 for unwinding the copper wire 10 and a straightening device 120 for straightening the copper wire 10. As shown in Figure 1, the unwinding device 110, the straightening device 120, the stripping device 130, the conveying device 140, and the cutting device 150 are arranged in order in the direction in which the copper wire is conveyed (hereinafter also referred to as the "conveying direction").

[0011] The copper wire 10, unwound by the unwinding device 110, is straightened to the desired degree by the straightening device 120. Next, the coating 20 of the copper wire 10 straightened by the straightening device 120 is stripped to the desired extent by the stripping device 130. Then, the copper wire 10 from which the coating 20 has been stripped by the stripping device 130 is transported to the cutting device 150 by the conveying device 140. Next, the copper wire 10 transported by the conveying device 140 is cut at the desired position by the cutting device 150.

[0012] The stripping device 130 includes a guide mechanism (not shown) for guiding the copper wire 10, a clamp (not shown) for fixing the copper wire 10, an upper stripping blade (not shown), and a lower stripping blade (not shown). The upper stripping blade and the lower stripping blade then clamp the copper wire 10, which is fixed by the clamp, and cut the coating 20. In Figure 1, the positions of the upper stripping blade and the lower stripping blade in the stripping device 130 are indicated by dashed lines. Furthermore, the stripping device 130 is positioned to be movable along the transport direction of the copper wire 10. For example, the stripping device 130 is mounted on a rail (not shown) that extends along the transport direction so as to be movable. This allows the stripping device 130 to cut the coating 20 at a desired position on the copper wire 10. In other words, the stripping device 130 strips the coating 20 over a desired range. The stripping device 130 also cuts the coating 20 at a position based on the desired length of the copper wire 10.

[0013] The conveying device 140 includes a guide mechanism (not shown) for guiding the copper wire 10, a chuck (not shown) for holding the copper wire 10, and a feed unit (not shown) for feeding the copper wire 10 in the conveying direction. The feed unit feeds the copper wire 10, held by the chuck, in the conveying direction, thereby conveying the copper wire 10 from the stripping device 130 to the cutting device 150. In Figure 1, the position of the chuck in the conveying device 140 is indicated by a dashed line. Furthermore, the conveying device 140 is positioned to be movable along the conveying direction of the copper wire 10. For example, the conveying device 140 is mounted on a rail (not shown) that extends along the conveying direction so as to be movable. This allows control over the length of the copper wire 10 cut by the cutting device 150. Specifically, the length of the copper wire 10 cut by the cutting device 150 can be controlled by controlling the distance from the copper wire 10 holding position of the conveying device 140 to the copper wire cutting position of the cutting device 150. Therefore, by controlling the position of the conveying device 140 in the conveying direction, the length of the copper wire 10 cut by the cutting device 150 can be controlled.

[0014] The cutting device 150 includes a guide mechanism (not shown) for guiding the copper wire 10, a clamp (not shown) for fixing the copper wire 10, an upper cutting blade (not shown), and a lower cutting blade (not shown). The upper cutting blade and the lower cutting blade cut the copper wire 10 which is fixed by the clamp. In Figure 1, the positions of the upper cutting blade and the lower cutting blade in the cutting device 150 are shown by dashed lines.

[0015] In the example shown in Figure 1, the distance from the positions of the upper and lower cutting blades of the cutting device 150 to the downstream end of the cutting device 150 in the transport direction is 155 mm. In other words, the distance from the cutting position of the copper wire 10 in the cutting device 150 to the upstream end of the cutting device 150 in the transport direction is 155 mm. Also, the distance from the chuck position of the transport device 140 to the downstream end of the transport device 140 in the transport direction is 20 mm. In other words, the distance from the holding position of the copper wire 10 in the transport device 140 to the downstream end of the transport device 140 in the transport direction is 20 mm. Therefore, as shown in Figure 2, when the cutting device 150 and the transport device 140 are brought as close together as possible, the distance from the holding position of the copper wire 10 in the transport device 140 to the cutting position of the copper wire 10 in the cutting device 150 (hereinafter referred to as the "minimum distance") is 175 mm, and it was not possible to manufacture copper wire shorter than this. However, in the copper wire manufacturing method according to the first embodiment, the conveying device 140 is positioned such that, when the distance between the holding position of the copper wire 10 in the conveying device 140 and the cutting position of the copper wire 10 in the cutting device 150 is set as the set distance, the set distance ≤ the desired wire length of the copper wire 10 × N (where N is a positive integer). Furthermore, the stripping device 130 cuts the coating 20 at a position based on the desired wire length of the copper wire 10. This makes it possible to manufacture copper wire shorter than the set distance. Note that the size of the stripping device 130, the size of the conveying device 140, the size of the cutting device 150, the length of the copper wire 10, and the length of the area over which the coating 20 is stripped, as disclosed herein, are all examples, and the scope of the present invention is not limited thereto.

[0016] More specifically, for example, as shown in FIG. 2, when the desired wire length of the copper wire 10 to be manufactured is 90 mm, N = 2, and the conveying device 140 is arranged such that the set distance, which is the distance between the holding position of the copper wire 10 of the conveying device 140 and the cutting position of the copper wire 10 of the cutting device 150, is smaller than 90 mm × 2. For example, as shown in FIG. 2, the cutting device 150 and the conveying device 140 are made to be closest to each other, the set distance is set to 175 mm, and it is made smaller than 90 mm × 2 of the desired wire length of the copper wire 10. As a result, two 90-mm copper wires 10 to be manufactured will exist between the holding position of the conveying device 140 and the cutting position of the copper wire 10 of the cutting device 150. Therefore, when the conveying device 140 conveys the copper wire 10 by 90 mm in the conveying direction, the cutting device 150 can cut the copper wire 10 every 90 mm. Also, the peeling device 130 peels the coating 20 over a range of 18.8 mm so that the wire length of the manufactured copper wire becomes 90 mm. Then, the cutting device 150 cuts the copper wire 10 every 90 mm. Thereby, a copper wire 10 with a wire length of 90 mm can be manufactured.

[0017] Also, according to the copper wire manufacturing method according to the first embodiment, it is also possible to manufacture a copper wire 10 longer than the minimum distance of 175 mm. For example, as shown in FIG. 3, when the desired wire length of the copper wire 10 to be manufactured is 250 mm, N = 1, and the conveying device 140 is arranged such that the set distance, which is the distance between the holding position of the copper wire 10 of the conveying device 140 and the cutting position of the copper wire 10 of the cutting device 150, is smaller than 250 mm. As a result, one 250-mm copper wire 10 to be manufactured will exist between the holding position of the conveying device 140 and the cutting position of the copper wire 10 of the cutting device 150. Therefore, when the conveying device 140 conveys the copper wire 10 by 250 mm in the conveying direction, the cutting device 150 can cut the copper wire 10 every 250 mm. Also, the peeling device 130 peels the coating 20 over a range of 18.8 mm so that the wire length of the manufactured copper wire becomes 250 mm. Then, the cutting device 150 cuts the copper wire 10 every 250 mm. Thereby, a copper wire 10 with a wire length of 250 mm can be manufactured.

[0018] In the method for manufacturing a copper wire according to the first embodiment described above, the conveying device 140 is arranged such that the set distance ≤ the desired wire length of the copper wire 10 × N (N is a positive integer). As a result, N copper wires 10 of the desired wire length exist between the holding position of the conveying device 140 and the cutting position of the copper wire of the cutting device 150. Therefore, when the conveying device 140 conveys the copper wire 10 in the conveying direction by the desired wire length, the cutting device 150 can cut the copper wire 10 for each desired wire length. Further, the peeling device 130 cuts the coating 20 at a position based on the desired wire length of the copper wire 10. Therefore, the length of the copper wire 10 that can be manufactured is not limited to the distance (set distance) from the holding position of the copper wire of the conveying device 140 to the cutting position of the copper wire of the cutting device 150. Thus, a method for manufacturing a copper wire capable of manufacturing a copper wire 10 of a desired length can be provided.

[0019] Note that the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the gist thereof.

Explanation of Reference Numerals

[0020] 100 Copper wire manufacturing system 110 Unwinding device 120 Straightening device 130 Peeling device 140 Conveying device 150 Cutting device 10 Copper wire 20 Coating

Claims

【Claim 1】 A method for manufacturing a copper wire, using a stripping device for stripping the coating of the copper wire, a conveying device for conveying the copper wire with the coating stripped, and a cutting device for cutting the copper wire, comprising: The stripping device, the conveying device, and the cutting device are arranged in sequence in the conveying direction of the copper wire; The stripping device and the conveying device are arranged so as to be movable along the conveying direction; The distance between the holding position of the copper wire of the conveying device and the cutting position of the copper wire of the cutting device is set as a set distance; The conveying device is arranged such that the set distance ≤ the desired wire length of the copper wire × N (N is a positive integer); In the stripping device, the coating is cut at a position based on the desired wire length of the copper wire; A method for manufacturing a copper wire.

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