Wire rod residual amount detection method, wire rod residual amount detection unit and residual amount detection fixture

Abstract

To provide a technique which can suppress the reduction of workability and can reduce a burden on workers involved in the detection of a residual amount of wire rods held in a holding member.SOLUTION: Disclosed is a wire rod residual amount detection method for detecting a residual amount of wire rods 20 held in a holding member 30. In the method, a residual amount detection fixture 51 is inserted into a space between the wire rods 20 wound so that they are stacked on the holding member 30 to make a state where the residual amount detection fixture 51 is supported by the wire rods 20, and thereafter, the residual amount detection of the wire rods 20 is executed based on the inclination of the residual amount detection fixture 51.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present disclosure relates to a wire remaining amount detection method, a wire remaining amount detection unit, and a remaining amount detection tool for detecting the remaining amount of a wire held by a holding member, which is, for example, a dance ring. [Background technology]

[0002] For example, a wire rod (e.g., a rough wire rod) held by a holding member that is a dance ring is unwound by a wire rod supplying device and supplied to various wire processing devices such as a wire drawing device. When the remaining amount of wire rod in the dance ring mounted on the wire rod supplying device becomes low, the worker switches to a new dance ring, and new wire rod is unwound from the switched dance ring. For this reason, the worker needs to know the remaining amount of wire rod in the dance ring mounted on the wire rod supplying device. In other words, the worker needs to know when the remaining amount of wire rod held by the dance ring becomes less than a predetermined remaining amount (hereinafter referred to as the specified remaining amount).

[0003] Conventionally, the remaining amount of wire held by the dance ring is known, for example, by the time elapsed since the dance ring was switched and by the worker's visual confirmation. Although this method can know the remaining amount of wire, it has problems such as the worker having to spend a long time monitoring the device, which places a heavy burden on the worker. Therefore, in recent years, a method of detecting the remaining amount of wire using a sensor has also been adopted (see Patent Document 1).

[0004] Patent Document 1 describes a method for detecting the remaining amount of wire by an optical sensor. More specifically, it describes in paragraph

[0019] that "a semiconductor light-emitting element and a semiconductor light-receiving element are disposed at opposing positions on a straight line passing through the outer periphery of the bundled winding material, and when the wire material is unwound from the bundled winding material between the elements and there is no remaining amount, the light from the light-emitting element enters the light-receiving element and transmits a remaining amount signal." [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2000-185874 A Summary of the Invention [Problem to be solved by the invention]

[0006] The configuration described in Patent Document 1 also makes it possible to detect the remaining amount of wire held by the dance ring, which is a holding member. However, it is necessary to install a light-emitting element and a light-receiving element near the holding member, and these light-emitting element and light-receiving element may interfere with the operation of switching the holding member, which may reduce workability.

[0007] Therefore, an object of the present disclosure is to provide a technique that can suppress a decrease in workability and reduce the burden on an operator in detecting the remaining amount of wire held by a holding member. [Means for solving the problem]

[0008] One aspect of the present disclosure is a wire remaining amount detection method for detecting the remaining amount of wire held by a holding member, which includes inserting a remaining amount detection jig between the wire wound in a stacked manner on the holding member, supporting the wire with the remaining amount detection jig, and then detecting the remaining amount of the wire based on the inclination of the remaining amount detection jig.

[0009] Another aspect of the present disclosure is a wire remaining amount detection unit that is provided in a wire supplying device that pays out wire held by a holding member from the holding member, detects the remaining amount of wire held by the holding member and notifies an operator, the wire remaining amount detection unit having a remaining amount detection tool that is inserted between the wire wound to be stacked on the holding member and supported by the wire, and has a tilt detection transmitter that transmits an alarm signal when it detects a tilt of a predetermined angle or more from a state supported by the wire, a signal receiver that receives the alarm signal transmitted from the tilt detection transmitter, and a reporting device that notifies an operator that the remaining amount of wire has become less than a specified remaining amount when the alarm signal is received by the signal receiver.

[0010] Another aspect of the present disclosure is a wire remaining amount detection tool for use in the above-mentioned wire remaining amount detection method, comprising: a plate-shaped base member having an insertion portion at one end in the long side direction that is inserted between the wires; and a tilt detection transmitter attached to the other end in the long side direction of the base member that transmits an alarm signal to a signal receiver when it detects a tilt of more than a predetermined angle. Effect of the Invention

[0011] According to the aspects of the present disclosure, it is possible to suppress a decrease in workability and to reduce the burden on the worker involved in detecting the remaining amount of wire held by the holding member. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a schematic diagram illustrating an example of a wire supplying device according to an embodiment. [Diagram 2] FIG. 2 is a top view of a dance wheel according to one embodiment. [Diagram 3] FIG. 2 is a cross-sectional view of a dance wheel according to one embodiment. [Figure 4] 1 is a block diagram showing an overall configuration of a remaining amount detection unit according to an embodiment; [Figure 5A] FIG. 2 is a top view of the remaining amount detection jig according to the embodiment. [Figure 5B]FIG. 2 is a front view of a remaining amount detection jig according to an embodiment. [Figure 6A] 1A to 1C are diagrams illustrating a method for detecting a remaining amount of wire according to an embodiment. [Figure 6B] 1A to 1C are diagrams illustrating a method for detecting a remaining amount of wire according to an embodiment. [Figure 7] 1A to 1C are diagrams illustrating a method for detecting a remaining amount of wire according to an embodiment. [Figure 8] 11A to 11C are diagrams illustrating a modified example of the wire remaining amount detection method according to the embodiment. [Figure 9] 11A to 11C are diagrams illustrating a modified example of the wire remaining amount detection method according to the embodiment. [Figure 10] 13A and 13B are diagrams illustrating a modified example of a remaining amount detection jig according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, the embodiments will be described in detail with reference to the drawings. In all the drawings for explaining the embodiments, the same reference numerals are used to designate members having the same functions, and in principle, repeated description will not be given.

[0014] (Wire supply device) Fig. 1 is a schematic diagram showing an overall configuration of a wire supplying device according to an embodiment. Fig. 2 is a top view of a dance wheel mounted on the wire supplying device. Fig. 3 is a schematic diagram showing a wire held by the dance wheel, and is a cross-sectional view corresponding to the line AA' in Fig. 2.

[0015] As shown in Fig. 1, a wire rod supplying device 10 according to one embodiment is a device for supplying a wire rod 20 to a wire rod processing machine 100 such as a wire drawing machine. For example, the wire rod 20, such as a rough wire, is held in a wound state around a dance ring 30 serving as a holding member, and this dance ring 30 is mounted on the wire rod supplying device 10. In the wire rod supplying device 10, the wire rod 20 is paid out from the dance ring 30, and is wound around, for example, a guide roller 40 arranged above the dance ring 30, and is supplied to the wire rod processing machine 100 via this guide roller 40.

[0016] The dance wheel 30 mounted on the wire rod supplying device 10 includes, for example, a disk-shaped base 31 and a plurality of support columns 32 standing on the base 31. As shown in Fig. 2, the support columns 32 are installed on the base 31 so as to form a cross shape when viewed from above. The wire rod 20 is held on the base 31 in a state in which it is wound around the support columns 32. As shown typically in Fig. 3, the wire rod 20 is held by the dance wheel 30 in a state in which a plurality of wire rods 20 are arranged side by side on the base 31 of the dance wheel 30 in the radial direction (X direction in the figure) and are stacked in the height direction of the support columns 32 (Z direction in the figure).

[0017] Here, when the dance wheel 30 mounted on the wire rod supplying device 10 has supplied the wire rod 20 held therein to the wire rod processing machine 100 and the remaining amount becomes less than the specified remaining amount, the worker replaces the dance wheel 30 with a new dance wheel 30 wound with a specified amount of wire rod 20. For this reason, the worker needs to know the remaining amount of wire rod 20 held in the dance wheel 30 mounted on the wire rod supplying device 10. In other words, the worker needs to know that the remaining amount of wire rod 20 held in the dance wheel 30 mounted on the wire rod supplying device 10 has become less than the specified remaining amount.

[0018] Therefore, in this embodiment, as described in detail below, the wire supplying device 10 is provided with a wire remaining amount detection unit 50. This makes it easier for an operator to grasp the remaining amount of the wire 20 held by the dance wheel 30 mounted on the wire supplying device 10.

[0019] (Wire remaining amount detection unit) Fig. 4 is a block diagram showing the overall configuration of a remaining amount detection unit according to an embodiment. Fig. 5A is a top view of a remaining amount detection jig according to an embodiment, and Fig. 5B is a front view of the remaining amount detection jig according to an embodiment.

[0020] The wire remaining amount detection unit 50 detects the remaining amount of the wire 20 held by the dance wheel 30. More specifically, the wire remaining amount detection unit 50 detects the remaining amount of the wire 20 by determining whether or not the remaining amount of the wire 20 has become less than a specified remaining amount. When the remaining amount detection unit 50 determines that the remaining amount of the wire 20 has become less than the specified remaining amount, it notifies the operator of the determination result (detection result), i.e., that the remaining amount of the wire 20 has become less than the specified remaining amount.

[0021] As shown in Fig. 4, the remaining amount detection unit 50 is, for example, configured to include a remaining amount detection tool 51, a signal receiver 52, and a reporting device 53. This remaining amount detection tool 51 is used by being inserted between the wire 20 wound so as to be stacked on the dance wheel 30, as shown in Figs.

[0022] 5A and 5B, the remaining amount detection jig 51 according to this embodiment is configured to include a base member 511 and a tilt detection transmitter 512 attached to the base member 511. The base member 511 is made of a plate-shaped member and includes an insertion portion 513 that is inserted between the wires 20 at one end side in the long side direction (X direction in the figure), and an attachment portion 514 to which the tilt detection transmitter 512 is attached at the other end side in the long side direction.

[0023] The insertion portion 513 of the base member 511 is formed so that the width in the short side direction (Y direction in FIG. 5A) gradually narrows toward the end side in the long side direction. In other words, the width of the base member 511 at the X-direction end of the insertion portion 513 is narrower than the width of the base member 511 at the mounting portion 514. The insertion portion 513 is also provided with a tapering portion 515 in which the thickness (thickness in the Z direction) of the base member 511 gradually decreases toward the X-direction end. In this way, the base member 511 is easily inserted between the wires 20 by providing the insertion portion 513.

[0024] A card-shaped tilt detection transmitter 512 is attached to the mounting portion 514 of the base member 511. The tilt detection transmitter 512 is attached to the base member 511 so that the long side direction of the tilt detection transmitter 512 is aligned with the long side direction of the base member 511. In this example, a storage case 516 in which the tilt detection transmitter 512 is stored is fixed to the mounting portion 514 of the base member 511. The tilt detection transmitter 512 is stored in the storage case 516 together with a cushioning material. In addition, on the lower surface of the base member 511, that is, on the surface opposite to the storage case 516, cushioning materials 517 are provided at positions corresponding to the four corners of the storage case 516, for example, to absorb impacts when the remaining amount detection jig 51 is dropped, etc.

[0025] The tilt detection transmitter 512 transmits an alarm signal when the remaining amount detection jig 51 is tilted by a predetermined value, for example, 20° or more, from the state where it is inserted between the wires 20. In other words, the tilt detection transmitter 512 transmits an alarm signal when it detects a tilt of the attached base member 511 of a predetermined value or more. The tilt detection transmitter 512 may be any device that detects tilt and outputs an alarm signal, and its configuration is not particularly limited. An existing tilt detection transmitter can be used as the tilt detection transmitter 512, and in this example, a tilt detection transmitter (model number: TX-101K) manufactured by Takenaka Engineering Co., Ltd. is used.

[0026] The signal receiver 52 is installed within a predetermined distance, for example, within a range of about 100 meters, from the tilt detection transmitter 512, and receives the alarm signal transmitted from the tilt detection transmitter 512. The signal receiver 52 is not particularly limited in configuration as long as it can receive the alarm signal transmitted from the tilt detection transmitter 512. In this example, an existing signal receiver is used as the signal receiver 52. Therefore, a detailed description of the signal receiver 52 will be omitted.

[0027] When the signal receiver 52 receives an alarm signal from the tilt detection transmitter 512, that is, when the remaining amount of the wire 20 becomes less than the specified remaining amount, the notification device 53 notifies the worker of that fact. As an example, the notification device 53 includes a determination unit 531 and an information display unit 532. The determination unit 531 determines whether the remaining amount of the wire 20 becomes less than the specified remaining amount as the detection of the remaining amount of the wire. More specifically, when the signal receiver 52 receives an alarm signal, the determination unit 531 determines that the remaining amount of the wire 20 becomes less than the specified remaining amount.

[0028] The information display unit 532 provides various types of information to the worker and includes a display device 532a such as a display. As an example, when the determination unit 531 determines that the remaining amount of the wire 20 is less than the specified remaining amount, the information display unit 532 displays the determination result (detection result) on the display device 532a. In other words, when the determination unit 531 detects that the signal receiver 52 has received an alarm signal, the information display unit 532 displays information that the remaining amount of the wire 20 is less than the specified remaining amount on the display device 532a. The notification device 53 may emit an alarm sound together with or instead of displaying the above information.

[0029] In this example, the notification device 53 is provided as a part of an alarm device (alarm panel) of the existing facility, and is connected to the signal receiver 52 by a connection wiring 54. That is, the notification device 53 and the signal receiver 52 are connected to each other so as to be able to communicate with each other via a wire. However, the signal receiver 52 and the notification device 53 do not necessarily have to be connected by a wire, and may be configured to be able to be connected by wireless communication.

[0030] In addition, as an example, the notification device 53 connected to the signal receiver 52 by a wire transmits a notification to the worker, but the configuration of the notification device 53 is not particularly limited. For example, the signal receiver 52 may also function as the notification device 53.

[0031] Furthermore, in this embodiment, the reporting device 53 includes the determination unit 531, but the determination unit 531 does not necessarily have to be included in the reporting device 53. The determination unit 531 may be provided separately from the reporting device 53. The determination unit 531 may be provided in the signal receiver 52, for example, and may be provided between the transmission-receiver 52 and the reporting device 53, independently of the transmission-receiver 52 and the reporting device 53.

[0032] (Method for detecting remaining wire) Next, a description will be given of a method for detecting the remaining amount of wire by using such a wire remaining amount detection unit 50. Figures 6A, 6B and 7 are diagrams for explaining the method for detecting the remaining amount of wire, and are sectional views corresponding to the line AA' in Figure 2.

[0033] First, as shown in Fig. 6A, a remaining amount detection jig 51 is placed at a position where the remaining amount of the wire 20 wound and held around the dance wheel 30 becomes a specified remaining amount, for example, a first position P1 where the height from the base part 31 of the dance wheel 30 in the Z direction in the figure becomes a first height h1. Then, as shown in Fig. 6B, at this first position P1, the remaining amount detection jig 51 is inserted between the wire 20 wound so as to be stacked around the dance wheel 30. In other words, the remaining amount detection jig 51 is moved at the first position P1 in a substantially horizontal direction (X direction in the figure) and inserted between the wire 20 held around the dance wheel 30.

[0034] In this example, the insertion portion 513 of the base member 511 is inserted between the wires 20. At this time, the base member 511 is inserted to a predetermined position in the X direction, and the remaining amount detection jig 51 is supported by the wires 20 with the base member 511 aligned substantially horizontally as shown in FIG. 5B. That is, the base member 511 is inserted between the wires 20 to a position where the remaining amount detection jig 51 is sandwiched and held by the wires 20. Note that the direction in which the remaining amount detection jig 51 is inserted between the wires 20 is not limited to the horizontal direction. For example, the remaining amount detection jig 51 may be inserted between the wires 20 with the insertion portion 513 oriented below the mounting portion 514.

[0035] With the remaining amount detecting jig 51 supported by the wire 20 in this manner, the wire supplying device 10 pays out the wire 20 above the dance wheel 30 and supplies it to a wire processing machine 100 such as a wire drawing machine (see FIG. 1).

[0036] Then, the wire 20 held by the dance wheel 30 is sequentially unwound, and when the wire 20 decreases to near the first position P1 as shown in FIG. 7, that is, when the remaining amount of the wire 20 becomes approximately the specified remaining amount, the base member 511 of the remaining amount detection jig 51, which was supported along the horizontal direction (X direction), tilts so that the tilt detection transmitter 512 side is on the lower side.

[0037] In other words, as the wire 20 placed on the base member 511 decreases, the base member 511 tilts so that the tilt detection transmitter 512 side is on the lower side. The way in which the base member 511 tilts varies depending on the situation, and it may tilt gradually or it may tilt suddenly. In either case, the base member 511 eventually falls out from between the wires 20, and the remaining amount detection jig 51 falls.

[0038] When the base member 511 tilts in this manner as the wire 20 decreases, if the tilt angle θ1 of the remaining amount detection jig 51 becomes equal to or greater than a predetermined angle, an alarm signal is transmitted from the tilt detection transmitter 512. That is, if the remaining amount of the wire 20 held in the dance wheel 30 becomes less than a specified remaining amount, an alarm signal is transmitted from the tilt detection transmitter 512 provided in the remaining amount detection jig 51. In other words, the remaining amount detection jig 51 is inserted between the wire 20 so that the tilt angle θ1 becomes equal to or greater than a predetermined angle at the timing when the remaining amount of the wire 20 held in the dance wheel 30 becomes less than the specified remaining amount.

[0039] The alarm signal transmitted from the tilt detection transmitter 512 is received by the signal receiver 52. As described above, the signal receiver 52 is connected to the notification device 53 via the connection wiring 54. The notification device 53 notifies the worker based on the alarm signal received by the signal receiver 52. As described above, the determination unit 531 included in the notification device 53 determines whether the remaining amount of the wire 20 is less than the specified remaining amount as the remaining amount detection of the wire 20. That is, when the signal receiver 52 receives an alarm signal, the determination unit 531 determines that the remaining amount of the wire 20 is less than the specified remaining amount. When the determination unit 531 determines that the remaining amount of the wire 20 is less than the specified remaining amount, the information display unit 532 displays the determination result on the display device 532a. The information display unit 532 notifies the worker of information that the wire 20 held in the dance wheel 30 has decreased to the specified remaining amount as the determination result of the determination unit 531.

[0040] According to such a wire remaining amount detection method, the worker can easily grasp the remaining amount of the wire 20 held by the dance wheel 30. In other words, since the wire supplying device 10 is provided with the wire remaining amount detection unit 50, the worker can easily grasp the remaining amount of the wire 20 held by the dance wheel 30. That is, the worker can easily grasp that the amount of the wire 20 held by the dance wheel 30 has become less than the specified remaining amount. As a result, the burden on the worker in detecting the remaining amount of the wire 20 held by the dance wheel 30 can be reduced. For example, the time that the worker is required to monitor the device can be shortened. Furthermore, the worker can perform the operation of switching the dance wheel 30 at an appropriate timing.

[0041] Furthermore, the remaining amount detection jig 51 provided in the remaining amount detection unit 50 is independent of the dance wheel 30 around which the wire 20 is wound, and is not fixed to the dance wheel 30. Furthermore, the remaining amount detection jig 51 is not connected to other devices by wire, and wiring connected to the remaining amount detection jig 51 is not routed around the dance wheel 30. Therefore, even if the wire supplying device 10 is provided with the wire remaining amount detection unit 50, the remaining amount detection jig 51 does not interfere with work such as changing the dance wheel 30, and a decrease in workability is also suppressed.

[0042] Although one embodiment of the present disclosure has been described above, the technology of the present disclosure is not limited to the above-described embodiment. It goes without saying that the technology of the present disclosure can be modified in various ways without departing from the gist of the technology.

[0043] For example, in the above embodiment, an example has been described in which the wire remaining amount detection unit 50 includes one remaining amount detection jig 51, but the wire remaining amount detection unit 50 may include multiple remaining amount detection jig 51. For example, as shown in Fig. 8, two remaining amount detection jigs 51 (51A, 51B) may be inserted between the wire 20 at different positions in the height direction (Z direction) of the dance wheel 30, and each of the remaining amount detection jigs 51 (51A, 51B) may be supported by the wire 20, and the remaining amount of the wire 20 may be detected in stages based on the inclination of each remaining amount detection jig 51 (51A, 51B).

[0044] In the example shown in Figure 8, remaining amount detection jig 51A is placed at a first position P1 where the height from the base portion 31 of the dance wheel 30 in the Z direction is a first height h1, and remaining amount detection jig 51B is placed at a second position P2 where the height from the base portion 31 is a second height h2.

[0045] In this case, when the wire 20 held by the dance wheel 30 is sequentially paid out, first, the remaining amount detection jig 51B tilts when the wire 20 decreases to the vicinity of the second position P2. At that time, an alarm signal transmitted from the tilt detection transmitter 512B of the remaining amount detection jig 51B is received by the signal receiver 52, and when the determination unit 531 included in the notification device 53 determines that the remaining amount of the wire 20 has decreased to the second position P2, the information display unit 532 notifies the user that the remaining amount of the wire 20 has decreased to the second position P2.

[0046] Thereafter, the wire 20 held by the dance wheel 30 is further unwound in sequence, and when the wire 20 decreases to near the first position P1 and the remaining amount detection jig 51A tilts, an alarm signal transmitted from the tilt detection transmitter 512A of the remaining amount detection jig 51A is received by the signal receiver 52. Then, when the determination unit 531 included in the notification device 53 determines that the remaining amount of the wire 20 has decreased to the first position P1, the information display unit 532 notifies the user that the remaining amount of the wire 20 has decreased to the first position P1.

[0047] In the above embodiment, the base member 511 of the remaining amount detection jig 51 is inserted between the wire rods 20 along the radial direction of the dance wheel 30, but the direction in which the base member 511 is inserted is not particularly limited. For example, as shown in Fig. 9, the base member 511 may be inserted along the winding direction of the wire rod 20, that is, in the tangent direction of the circle formed by the wire rod 20 wound around the dance wheel 30.

[0048] Furthermore, in the above embodiment, an example has been described in which the tilt detection transmitter 512 constituting the remaining amount detection jig 51 is attached to the base member 511 along the long side direction thereof (see FIG. 5A), but the orientation in which the tilt detection transmitter 512 is attached to the base member 511 is not limited to this. For example, as shown in FIG. 10, the tilt detection transmitter 512 may be attached to the base member 511 in such an orientation that the long side direction of the tilt detection transmitter 512 intersects with the direction in which the base member 511 is inserted between the wires 20. This reduces the amount of protrusion of the remaining amount detection jig 51 outward from the wires 20 when the base member 511 is inserted between the wires 20, thereby saving space.

[0049] In the above embodiment, a dance wheel is used as an example of a holding member for holding the wire, but the configuration of the holding member is not particularly limited. Furthermore, the wire held by the holding member is not particularly limited. The wire may be, for example, a wire in which the surface of a metal wire is covered with an insulating coating (so-called enameled wire), or a cable in which multiple metal wires are twisted (so-called twisted wire), etc. [Explanation of symbols]

[0050] 10...wire supply device, 20...wire, 30...dance ring, 31...base portion, 32...support portion, 40...guide roller, 50...wire remaining amount detection unit, 51...remaining amount detection jig, 511...base member, 512...tilt detection transmitter, 513...insertion portion, 514...mounting portion, 515...gradual reduction portion, 516...accommodation case, 517...buffer member, 52...signal receiver, 53...reporting device, 531...display portion, 54...connecting wiring, 100...wire processing machine

Claims

1. A wire remaining amount detection method for detecting a remaining amount of a wire held by a holding member, comprising the steps of: a remaining amount detection jig is inserted between the wire wound in a stacked manner on the holding member, and the remaining amount detection jig is supported by the wire, and the remaining amount of the wire is detected based on the inclination of the remaining amount detection jig. How to detect remaining wire.

2. 2. The method for detecting a remaining amount of wire according to claim 1, When the remaining amount detection jig is tilted at a predetermined angle or more, it is determined that the remaining amount of the wire is less than a specified remaining amount. How to detect remaining wire.

3. 3. The wire remaining amount detection method according to claim 2, The remaining amount detection tool includes a tilt detection transmitter that transmits an alarm signal when it detects a tilt of a predetermined angle or more, When the signal receiver receives the alarm signal output from the tilt detection transmitter as the remaining amount detection of the wire, it is determined that the amount of the wire material is less than the specified remaining amount. How to detect remaining wire.

4. 4. The wire remaining amount detection method according to claim 3, the remaining amount detection jig has a plate-shaped base member on which the tilt detection transmitter is mounted, The base member is inserted between the wires, so that the remaining amount detection jig is supported by the wires. How to detect remaining wire.

5. 2. The method for detecting a remaining amount of wire according to claim 1, a plurality of the remaining amount detection jigs are inserted between the wires at different positions in the height direction of the holding member so that each of the remaining amount detection jigs is supported by the wires; The remaining amount of the wire is detected in stages based on the inclination of each remaining amount detection jig thereafter. How to detect remaining wire.

6. A wire remaining amount detection unit is provided in a wire supplying device that pays out a wire held by a holding member from the holding member, and detects a remaining amount of the wire held by the holding member, a remaining amount detection tool having an inclination detection transmitter that is inserted between the wire wound in a stacked manner on the holding member and is configured to be supported by the wire, and that transmits an alarm signal when it detects an inclination of a predetermined angle or more from a state supported by the wire; a signal receiver for receiving an alarm signal transmitted from the tilt sensing transmitter; and a determination unit that, when the alarm signal is received as the detection of the remaining amount of the wire, determines that the remaining amount of the wire is less than a specified remaining amount. Wire remaining amount detection unit.

7. 7. The wire remaining amount detection unit according to claim 6, The wire feeder further includes a reporting device that reports a result of the determination by the determining unit to an operator when the determining unit determines that the remaining amount of the wire is less than a specified remaining amount. Wire remaining amount detection unit.

8. 8. The wire remaining amount detection unit according to claim 7, The remaining amount detection tool is a plate-shaped base member having an insertion portion at one end in a long side direction, the insertion portion being inserted between the wire rods; and a tilt detection transmitter that is attached to the other end of the base member in the long side direction and transmits an alarm signal to a signal receiver when it detects a tilt of a predetermined angle or more. Wire remaining amount detection unit.

9. A wire remaining amount detection tool used in the wire remaining amount detection method according to claim 1, a plate-shaped base member having an insertion portion at one end in a long side direction, the insertion portion being inserted between the wire rods; and a tilt detection transmitter that is attached to the other end of the base member in the long side direction and transmits an alarm signal to a signal receiver when it detects a tilt of a predetermined angle or more. Remaining amount detection tool.

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