JP2003053426A - Tangle detecting method for wire and rewinding method for wire using this detecting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of exactly and rapidly detecting the tangle of a wire in rewinding the wire and a rewinding method for wire using this detecting method. SOLUTION: A winding frame B (guide stand) 8 is arranged below a winding frame A (bobbin) 2 and the prescribed point between the winding frame A2 and the winding frame B8 is scanned with an electron beam 2 of a photoelectric sensor. The occurrence of the tangle is decided when the winding frame A2 rotates a prescribed number of turns while the falling spiral wire 1 delivered from the winding frame A2 shuts off the electron beam 9 once or when the spiral wire 1 keeps shutting off the electron beam 9 for the prescribed time. The rotation of the winding frame A2 is automatically stopped when the tangle is detected by the method described above.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire entanglement detection method for rewinding a wire and a wire rewinding method using the detection method.

[0002]

2. Description of the Related Art In a high speed wire drawing machine, a wire is tightly wound around a bobbin which rotates in synchronization with a wire drawing speed. When the wire rod is fed out from this bobbin for secondary processing, the bobbin is rotated in synchronization with the secondary processing speed so as not to apply excessive tension to the wire rod and prevent the wire rod from slackening (hereinafter,
If necessary, an expensive control device is required for the rotation. For this reason, a method has been adopted in which the wire wound on the bobbin is rewound into a bundle (loose winding), and the wire is placed on a vertical supply stand and fed out.

In the method of rewinding the wire wound on the bobbin into a bundle, the bobbin 2 is mounted on the bobbin mounting shaft 3 as shown in FIG. 3, and the bobbin 2 is rotated to reel out the wire 1. The wire rod 1 is spirally dropped through a separator 5 attached to the tip of an arm 4 that has the same rotation axis as the bobbin 2 but the opposite rotation direction and rotates at the same number of revolutions, and is placed below the bobbin 2. It is carried out by a method of stacking in 8 in a bundle.

In this method, the wire 1 wound on the bobbin 2 is continuously rewound into a plurality of bundles 13, and the bundles 13 are placed on a conveyor 14 and carried out of the machine frame 15. The empty bobbin is another new bobbin 12 with wire wound.
Exchanged for. In FIG. 3, 16 is a guide rail for transferring the bobbins 2 and 12, and 17 and 18 are conveyors and lifters for transferring another new bobbin 12, respectively.

[0005]

However, in the above-mentioned rewinding method, the wire rod unwound from the bobbin may be entangled. When the entangled portion enters into the bundle, the wire rod is entangled above or above the entangled portion. Since it touches the lower wire in a small area, it may be scratched by being rubbed by vibration during transportation, etc.When the bundled wire is secondary processed, the entangled part is processed as it is and the secondary processing device is It was sometimes damaged. From these things, the present inventors have examined a method of detecting the occurrence of entanglement when rewinding a wire rod, arrange a guide stand below the bobbin, and rotate the bobbin to feed out the wire rod. By comparing the number of revolutions of the bobbin with the falling state of the spiral wire rod fed out from the bobbin, it was found that the occurrence of entanglement can be detected accurately and quickly, and further studies are conducted to complete the present invention. I arrived. It is an object of the present invention to provide a method for accurately and quickly detecting entanglement of a wire rod when the wire rod is rewound, and a wire rod rewinding method using the detection method.

[0006]

The invention according to claim 1 is
A winding frame B is arranged below the winding frame A, an electron beam of a photoelectric sensor is scanned at a predetermined position between the winding frames A and B, and the spiral wire rod that is drawn out from the winding frame A and falls. While the electron beam is blocked once, the reel A
The method for detecting entanglement of a wire rod is characterized in that it is determined that the entanglement has occurred when is rotated a predetermined number of times or when the spiral wire rod continues to block the electron beam for a predetermined time.

The invention according to claim 2 is characterized in that the winding frame A is a bobbin tightly winding the wire rod, and the winding frame B is a guide stand for winding the wire rod in a bundle. The method for detecting entanglement of a wire according to Item 1.

According to a third aspect of the invention, a separator is provided in which the wire rod fed from the winding frame A is attached to an arm which has the same rotation axis as the winding frame A but has the same rotation axis but the opposite rotation direction and the same rotation speed. The wire rod entanglement detection method according to claim 1 or 2, wherein the wire rod is entangled.

According to a fourth aspect of the present invention, the number of revolutions of the winding frame A is measured by rotating the bobbin attached to the winding frame A at the same number of revolutions with the same rotation axis and opposite rotation direction. The method for detecting entanglement of a wire rod according to any one of claims 1, 2, and 3, wherein the rotation number of the arm is measured.

The invention according to claim 5 is based on claims 1, 2 and
The entanglement is detected by the method according to any one of 3 and 4,
When the entanglement is detected, the axial rotation of the winding frame A is automatically stopped, which is a wire rewinding method.

[0011]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic side view showing an embodiment of the present invention. Bobbin 2 in which wire 1 is wound tightly
Is mounted on the bobbin mounting shaft 3, and the same mounting shaft 3 as the bobbin 2
The arm 4 is attached to the arm 4, the separator 5 is attached to the tip of the arm 4, and the electron beam light emitter 6 and the light receiver 7 of the photoelectric sensor are arranged below the same with a predetermined gap therebetween. The guide stand 8 for bundling is arranged vertically. The bobbin 2 is rotated in a direction opposite to the winding direction of the wire rod 1 to pay out the wire material 1, and the wire material 1 fed out is spirally dropped through a separator 5 which is rotated in the opposite direction to the bobbin 2, at which time. The electron beam 9 is cut off and accumulated in a bundle on the lower guide stand 8.

When the rewinding is normally performed, one loop of the spiral wire rod falls while the bobbin 2 rotates once, and the electron beam 9 is dropped twice by the spiral wire rod 1 at this time. Be cut off.

When entanglement occurs due to the rewinding, the wire rod 1 does not fall, during which the bobbin 2 continues to rotate and the electron beam 9 remains conductive, or the wire rod 1 is on the electron beam 9. At this time, the electron beam 9 remains blocked. In the present invention, it is determined that the entanglement occurs when the bobbin 2 rotates a predetermined number of times while the wire rod 1 blocks the electron beam once or when the electron beam continues to be blocked for a predetermined time.

Since the spiral wire drops while swinging vertically, the period at which the spiral wire blocks the electron beam varies. Therefore, the number of rotations of the bobbin during which the spiral wire blocks the electron beam once to determine that the entanglement has occurred is determined in consideration of the material and wire diameter of the wire. However, it is highly likely that misjudgment occurs when the bobbin makes only one revolution, and entanglement occurs when the bobbin makes three revolutions or more, and the entanglement becomes too large and it takes time to repair. Therefore, the number of rotations of the bobbin for determining the occurrence of the entanglement is appropriately two.

When entanglement occurs and the electron beam continues to be blocked by the wire rod, how many seconds the electron beam is blocked to determine that the entanglement occurs is as follows.
The time for two rotations of the bobbin is appropriate.

In the present invention, by dropping the wire rod fed from the bobbin through the separator, the drop start height of the wire rod and the loop diameter of the spiral wire rod become substantially constant, and the number of times the electron beam is blocked by the spiral wire rod. More stable measurement is possible.

The rotation speed of the arm which is coaxial with the bobbin and rotates at the same rotation speed in the opposite direction can be easily measured by using a photoelectric sensor or a proximity switch. Therefore, it is preferable to measure the rotation speed of the bobbin 1 by measuring the rotation speed of the arm 1.

In the present invention, the falling condition of the spiral wire rod fed from the bobbin or arm can be measured by using a proximity switch.

A fifth aspect of the present invention is a wire rewinding method for automatically stopping the rotation of the bobbin when the entanglement is detected by the method of the present invention. According to the entanglement detection method of the present invention, since the occurrence of entanglement can be detected accurately and quickly, when the entanglement is detected, this is immediately transmitted to the bobbin rotating electric circuit as an electric signal to rotate the bobbin. The automatic shut-off prevents the entanglement from entering the bundle, thus avoiding damage to the wire or damage to the rewinding device or the secondary processing device. It is also easy to repair the tangles.

[0020]

EXAMPLES The present invention will be described in detail below with reference to examples. (Embodiment 1) FIG. 2 is a program ladder diagram for carrying out the present invention by the method shown in FIG. When the passage detection signal (electron beam interruption number) [B001] of the spiral wire rod is once, the rotation signal (rotation number) [B00] of the separate arm
0] counter [C000] is 1
If it is, the counter [C000] is reset, the [M000] that enables the determination of the occurrence of entanglement is not turned on, and the bobbin continues to rotate. When the count number of [B000] is two, the counter [C000] is up, [M000] for enabling the determination of occurrence of entanglement is turned on, and the bobbin automatically stops rotating.

On the other hand, the on-time of the wire passage detection signal (electron beam cut-off number) [B001] is entangled and the judgment timer [T
000], and this on time is a predetermined time (3 seconds,
When the time corresponding to two revolutions of the bobbin) is reached, [T0
[00] is turned on, [M000] for enabling the determination of occurrence of entanglement is turned on, and the bobbin automatically stops rotating.

In FIG. 2, [D000] is an operation start pulse,
[C000] is a counter that is counted up by [B000] and is reset by [B001] or [D000]. [M001] is a coil that keeps the occurrence of entanglement as an error and continues bobbin rotation.
02] is a coil that holds the occurrence of entanglement as an error and resets the rotation of the bobbin.

The series of operations described above are input to a pc (programmable controller) and all are automatically performed.

The case where the wire rod wound on the bobbin is rewound into a bundle has been described above. However, the present invention can be widely applied when the wire rod is rewound, such as when the bundled wire rod is rewound to another shape.

[0025]

As described above, in the wire rod entanglement detection method of the present invention, the winding frame B is arranged below the winding frame A, and the photoelectric conversion is performed at a predetermined position between the winding frame A and the winding frame B. The electron beam of the sensor is scanned, and when the winding wire A is rotated a predetermined number of times or while the spiral wire material that is unwound from the winding frame A and blocks the electron beam once blocks the electron beam, When the electron beam is kept blocked for a predetermined time, it is determined that the entanglement has occurred, so that the entanglement can be detected accurately and quickly. When the entanglement is detected by the above method, by automatically stopping the rotation of the reel A,
It is possible to prevent the entangled portion from being mixed into the winding frame B, and thus to prevent the wire from being damaged due to the entanglement, or the damage to the rewinding machine or the secondary processing device. In addition, the entangled part can be easily repaired and productivity is improved. Therefore, it has a remarkable industrial effect.

[Brief description of drawings]

FIG. 1 is a side view illustrating an embodiment of a wire entanglement detection method of the present invention.

FIG. 2 is a program ladder diagram showing an embodiment of a rewinding method of the present invention.

FIG. 3 is an explanatory diagram of a wire rewinding method.

[Explanation of symbols]

1 wire rod 2 Bobbin with wire wound tightly 3 bobbin mounting axes 4 arms 5 separator 6 Electron beam emitter 7 Electron beam receiver 8 guide stand 9 electron beam 13 wire bundle 14 Conveyor for transferring bundles 15 machine frames 16 Guide rails for transferring bobbins 17 Conveyor for transferring new bobbins 18 Lifters for transferring new bobbins

Claims (5)

[Claims] 1. A winding frame B is arranged below the winding frame A, an electron beam of a photoelectric sensor is scanned at a predetermined position between the winding frames A and B, and is drawn out from the winding frame A and falls. When the reel A rotates a predetermined number of times while the spiral wire blocks the electron beam once, or when the spiral wire continues to block the electron beam for a predetermined time, it is determined that entanglement has occurred. A method for detecting entanglement of a wire rod, which comprises: 2. The wire rod according to claim 1, wherein the winding frame A is a bobbin that tightly winds the wire rod, and the winding frame B is a guide stand that winds the wire rod in a bundle. Entanglement detection method. 3. A wire rod fed from the winding frame A,
The wire rod entanglement detection method according to claim 1 or 2, wherein the reel is dropped through a separator attached to an arm that has the same rotation axis as the winding frame A but has the opposite rotation direction and rotates at the same rotation speed. 4. The number of rotations of the winding frame A is measured by measuring the number of rotations of an arm which has the same rotation axis as the bobbin attached to the winding frame A but the rotation direction is opposite and rotates at the same rotation number. The method for detecting entanglement of a wire rod according to claim 1, wherein the method is performed by measuring. 5. A wire rod, wherein entanglement is detected by the method according to any one of claims 1, 2, 3 and 4, and when the entanglement is detected, the axial rotation of the reel A is automatically stopped. Rewind method.