JP3180509B2 - Supply method and supply device for shielded electric wire - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shielded electric wire which is provided by wrapping a shield tape on an insulated wire to form a shielded electric wire, and guiding the shielded electric wire to an electric wire processing device such as a cutting press machine. The present invention relates to a method and a supply device for a shielded electric wire which do not cause inconvenience such as a failure in wrapping of a shield tape or disconnection even when an electric wire processing device or the like intermittently draws a shielded electric wire.

[0002]

2. Description of the Related Art As a method for supplying a shielded electric wire, as shown in FIG. 10, a shield tape 54 drawn from a shield tape supply 53 is wrapped by a wrap die 55 on an insulated wire 52 drawn from an electric wire supply 51. The shielded electric wire is wrapped vertically, and the shielded electric wire is directly supplied to an electric wire processing device such as a cutting crimping machine, or once wound on a reel or the like, and then the reel is attached to the electric wire processing device or the like. Subsequent processing is performed.

[0003]

As described above, when a shielded electric wire is supplied directly to an electric wire processing device or the like, an electric wire drawing device is provided on the electric wire processing device side.
Since the configuration in which the shielded electric wire is drawn in by a necessary amount when necessary is generally adopted, the drawing in of the shielded electric wire is performed intermittently.

When the drawing is intermittently performed as described above, the tension is temporarily relaxed when the drawing of the shielded wire is stopped, but when the drawing is started, the tension is rapidly applied due to the presence of the wrap die. Insulation-coated wires come off the guides, the shield tape is turned over, and other problems such as poor wrapping of the shield tape and disconnection occur frequently.

When the shielded electric wire is temporarily wound on a reel or the like and this reel is mounted on an electric wire processing device or the like and used, a certain number of reels or the like on which the shielded electric wire is wound are always secured. And there was a problem in terms of storage space.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the former method and apparatus for directly supplying a shielded electric wire to an electric wire processing apparatus or the like so that the electric wire processing apparatus or the like intermittently draws a shielded electric wire. Another object of the present invention is to make it possible to stably supply a shielded electric wire without occurrence of a wrapping defect of a shield tape, disconnection, and the like, and to facilitate tandem between an electric wire processing device and the like and a shielded electric wire supply device.

[0007]

To solve the above problems BRIEF SUMMARY OF THE INVENTION This invention is directed to wire shielded by winding a shield tape insulated wire, once 蓄 after sending this
A method for supplying a shielded electric wire which leads to another device or the like after sagging at a wire portion , wherein a slack portion of the shielded electric wire is provided.
Along the trajectory that moves up and down in response to the
Therefore, the first sensor, the second sensor
A sensor and a third sensor, and the second sensor
When passage of a shielded wire is detected, the
Feeds the wire with a wire at a predetermined speed, and the third sensor
When the passage of the shielded wire is detected by
Connect the shielded wire at a speed higher than the specified speed.
Send by speed, and shield by the first sensor
When the passage of a shielded wire is detected, the shielded wire
Stop feeding or move the shielded wire
The present invention provides a method of supplying a shielded electric wire in which the sending of the shielded electric wire is controlled so as to send out the electric wire.

Further, in order to carry out the above method, a wrap die for forming a shielded wire by winding a shield tape drawn from a shield tape supply around an insulated wire drawn from a wire supply, and a shielded wire thereof A take-out unit for drawing out from the wrap die,
And a蓄線unit for temporarily slack before directing shielded electric wire drawn out by the take-off section to the other device or the like, before
The slack portion of the shielded electric wire is
Along the trajectory that moves up and down according to the
The first sensor and the second sensor
A second sensor, a third sensor, and the second sensor;
When the passage of a shielded wire is detected,
The attached wire is sent out at a predetermined speed and sent to the third sensor.
When the passage of the shielded wire is detected,
Speed of the shielded wire is faster than the specified speed.
With the shield by the first sensor
When the passage of the wire is detected, the shielded wire
Stop feeding or move the shielded wire at a fine movement speed.
The present invention provides a supply device for a shielded electric wire, comprising: a control means for controlling a drawing speed of the shielded electric wire of the take-up section so as to send out .

[0009]

In the method and apparatus for supplying a shielded electric wire configured as described above, the shielded electric wire is controlled so that the shielded electric wire keeps a predetermined slack state. Even if it is pulled out intermittently by another device, no sharp tension is applied to the shielded wire at the time of pulling out.

[0010]

Embodiments will be described below with reference to the drawings. As shown in FIG. 1, the method of supplying the shielded electric wire is as follows. After being pulled out and sagged, it is guided to a cutting and pressing machine (hereinafter referred to as a cutting pressure machine) 6. In addition, the degree of slack of the shielded electric wire c is controlled such that the withdrawal amount of the shielded electric wire c of the take-off section 4 is always within a predetermined range. In addition, the shielded electric wire c in the slack state
Is pulled in by the cutting machine 6 itself, and after the length measurement, cutting and crimping of the terminals are performed.

FIGS. 2 to 6 show a specific supply apparatus for carrying out the above-mentioned supply method. This supply device includes an insulated wire supply unit 10 shown in FIG. 2, a shield tape supply unit 21, a release paper winding unit 22, and a wrap die 2.
3 and a device main body 20 provided with a shielded wire take-off portion 24, and a storage unit 30 which leads the shielded wire to an electric wire processing device such as a cutting device after sagging.

The insulated wire supply section 10 includes a gantry 11
And a gate-shaped frame 12 supported by the gantry 11 and having a pulley 13 suspended from the upper end thereof, and an electric wire sending section 14 provided on the gantry 11.

The electric wire sending section 14 is provided with an electric wire bundle mounting section 1.
4a, a guide tube 14b erected on the mounting portion 14a, and a guide piece 14c rotatably supported at the center of the upper end of the guide tube 14b.
Pull out the insulated wire a from the roll-shaped wire bundle A set on the mounting portion 14a so that the pulley 1
The device is guided to the apparatus main body 20 via three and a plurality of guide rollers 15. The drawn out insulated wire a is, together with the guide piece 14c, the guide tube 14b.
Is smoothly sent out from the wire bundle A while rotating along the outer circumference of the wire.

In the apparatus main body 20, each member such as the above-mentioned shield tape supply section 21, wrap die 23 and the like is attached to a support frame 20a constituted by an L angle or the like.

The shield tape supply section 21 includes a tape roll holder 21a for rotatably supporting the tape roll B of the shield tape.
Can be supplied to the wrap dice 23 via a plurality of guide rollers 21b.

The shield tape b has a room-temperature adhesive layer on the back surface, and a release paper b 'is attached to the adhesive surface to reduce the pull-out tension of the shield tape b. Therefore, the wrap dice 2
The release paper b 'which has been peeled off from the shield tape b is wound up by the release paper take-up portion 22 provided up to 3. This release paper winding section 22
As shown in FIG. 4, the take-up reel 22a is driven to rotate by a torque motor 22b, and the release paper b 'is automatically taken up according to the amount of the drawn-out shield tape b. I have.

As shown in FIG. 7, the wrap die 23 has a large-diameter inlet 23a and a small-diameter (substantially the same diameter as a shielded wire) outlet 23b, both of which are tapered. They are connected by a throttle 23c. Therefore,
The insulation-coated electric wire a and the shield tape b are connected to the inlet 23
a through the throttle portion 23c and the outlet 23b
When the wire is further pulled out, the shield tape b is wrapped vertically along the insulated wire a in the narrowed portion 23c and sent out as the shielded wire c.

The take-up section 24 hangs a belt 24c of a predetermined width on two guide rollers 24a on the left and right and one guide roller 24b at a lower position in the middle between the two guide rollers 24a.
A rotating body 24d, which is rotationally driven by a motor 24e, is brought into pressure contact with the interposed belt 24c. Therefore, when the shielded electric wire c is sandwiched between the belt 24c and the rotating body 24d, and the rotating body 24d is rotated, the shielding force is generated by the frictional force generated between the belt 24c and the rotating body 24d and the shielded electric wire c. The attached electric wire c is pulled out from the wrap dice 23, and
Sent to.

The wire storage section 30 has a body frame 30a formed by an L angle or the like, like the apparatus body section 20, and guide rollers 31, 32 are supported at upper right and left ends of the body frame 30a. . The take-off section 24
Is intermittently interposed via the two guide rollers 31 and 32.
After the wire is drawn and measured, the wire is guided to a cutting machine or the like which performs cutting and pressure welding. However, the slack state of the shielded electric wire c between the guide rollers 31 and 32, that is, the tension-free state is maintained. I have. Therefore, in order to always keep the slack of the shielded electric wire c within a certain range, the main body frame 30a is provided with laser sensors 33a, 33b, 33c for detecting the slackness of the shielded electric wire c at three places above and below the center. Is attached, and the rotating body 24d of the take-off unit 24 is controlled by control means (not shown).
, That is, the sending speed of the shielded electric wire c by the take-off unit 24 is controlled. Specifically, with the shield
The slack part of the wire c rises according to the variation of the slack condition.
Along the trajectory of the downward movement, from the bottom to the top
Laser sensor 33c (first sensor), laser sensor
Sensor 33b (second sensor) and laser sensor 33a (third sensor).
Sensors) are provided.

Hereinafter, the control method will be described. Before the cutting machine starts length measurement, as shown in FIG. 8A, the shielded electric wire c is stopped in the slackest state, and the central portion thereof is located below the laser sensor 33c. I have.

When the cutting machine starts length measurement from this state,
Since the shielded electric wire c is drawn into the cutting device, the slackness of the shielded electric wire c in the storage unit 30 is reduced, and as shown in FIG. 8 (b), the center of the shielded electric wire c is the laser sensor 33c. It lifts up after passing through 33b. Here, when the laser sensor 33b detects the passage of the shielded electric wire c, a detection signal is input to the control unit, and the control unit transmits the rotating body 24a of the take-off unit 24 at a speed lower than the length measuring speed of the cutting device. Is instructed to start driving. The slow speed referred to here is a speed at which abrupt tension is not applied to the wrap dice portion so as to prevent the wrapping failure of the shield tape and the inconvenience of disconnection from occurring.

However, in this state, the amount of retraction of the cutting device is larger than the amount of delivery of the take-off unit 24.
The slackness of the shielded electric wire c in the storage unit 30 gradually decreases, and as shown in FIG. 8C, the electric wire c also passes through the uppermost laser sensor 33a and further rises upward. Here, when the laser sensor 33a detects the passage of the shielded electric wire c, the control means drives the rotating body 24a to rotate at a speed faster than the length measuring speed of the cutting machine, unlike the above, based on this detection signal. In this state, since the delivery amount of the take-off unit 24 is larger than the retraction amount of the cutting device, the slackness of the shielded electric wire c in the storage unit 30 gradually increases, and when the retraction amount of the cutting device is large, The state shown in FIG. 9A and the state shown in FIG. 9B are sequentially repeated.

When the retraction of the cutting device is stopped, as shown in FIG. 9C, the slackness of the shielded electric wire c in the storage unit 30 gradually increases, and the lowermost laser sensor 33c is turned off. Pass through to the bottom. Here, when the laser sensor 33c detects the passage of the shielded electric wire c, the rotation of the rotating body 24a is stopped by the control means, and the state shown in FIG. Is done.

As described above, even when the shielded wire c is intermittently and abruptly pulled in on the cutting device side, the delivery of the shielded wire c by the take-off section 24 starts and ends at the beginning and end of the delivery. Is performed at a slow speed, so that no sharp tension is applied to the shielded electric wire c at the start of the length measurement of the cutting device, and the shield tape b and the insulated coated electric wire c from the guide roller of the apparatus main body 20 are not applied. Dropping is prevented, and problems such as poor wrapping of the shield tape and disconnection do not occur.

Even when the laser sensor 33c detects the shielded electric wire c, the rotation of the take-up portion 24 is not completely stopped, but the speed is further reduced to continue the drawing of the shielded electric wire c in a fine movement state. You can also. By doing so, since the take-off operation is always maintained, abrupt tension is not applied to the shielded electric wire c during the operation of the take-up unit 24, which is more effective.

[0026]

As described above, according to the present invention, a shielded electric wire in which a shield tape is wound around an insulated wire is used.
After sagging at the wire storage section, the wire is led to a shielded wire processing device such as a cutting machine, and the slack portion of the shielded wire is
Along the trajectory that moves up and down according to the variation of the slack,
The first sensor and the second sensor are arranged in this order from below to above.
A third sensor, and the second sensor
When the passage of a shielded wire is detected,
The electric wire is sent out at a predetermined speed, and the electric wire is sent out by the third sensor.
When the passage of the shielded wire is detected,
Speed the shielded electric wire faster than the specified speed.
And the shielded power supply by the first sensor.
When the passage of a wire is detected, the
Stop feeding, or send the shielded wire at a fine movement speed.
The shielded electric wire is sent out so that the shielded electric wire is suddenly tensioned when the processing device such as a cutting device intermittently draws in the shielded electric wire. Nothing. For this reason, the shield tape or the insulated wire does not come off the guide, and the shield tape does not turn over, and it is possible to effectively prevent defective wrapping or disconnection of the shield tape. Moreover, the second sensor allows the system
When the passage of a shielded wire is detected,
The attached wire is sent out at a predetermined speed and sent to the third sensor.
When the passage of the shielded wire is detected,
Speed of the shielded wire is faster than the specified speed.
With the shield by the first sensor
When the passage of the wire is detected, the shielded wire
Stop feeding or move the shielded wire at a fine movement speed.
Since it is sent out, shield by cutting pressure machine etc.
Flexible response to the pull-in speed and pull-in frequency of attached wires
Becomes possible.

[0027] In addition, such an effect facilitates tandem of a shielded electric wire supply device and a processing device for performing intermittent operation such as a cutting press, so that a shielded electric wire is once manufactured as in the related art. This eliminates the need for storage, and the problems associated with storage space and the like are eliminated.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a method for supplying a shielded electric wire according to the present invention.

FIG. 2 is a side view showing an insulated wire supply section of a supply device used to carry out the supply method of the above.

FIG. 3 is a side view showing an apparatus main body of the supply device.

FIG. 4 is a plan view of the same.

FIG. 5 is a side view showing a storage section of the supply device of the same.

FIG. 6 is a plan view showing the storage unit according to the first embodiment.

FIG. 7 is a diagram showing a state where the shield tape is being wrapped around the insulated wire;

FIG. 8 is a schematic diagram showing the control of the slack of the shielded electric wire in the storage unit.

FIG. 9 is a schematic diagram showing the control of the slack of the shielded electric wire in the storage unit.

FIG. 10 is a schematic view showing a conventional example.

DESCRIPTION OF SYMBOLS 10 Insulation-coated electric wire supply part 11 Frame 12 Frame 13 Pulley 14 Electric wire sending part 20 Main body part 21 Shield tape supply part 22 Release paper take-up part 3,23 Wrap dice 4,24 Pick-up part 30 Storage part 31, 32 Guide rollers 33a, 33b, 33c Laser sensor a Insulated wire b Shield tape c Shielded wire

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01B 13/26 H01B 13/00

Claims (2)

(57) [Claims] [Claim 1] with a wire shielded by winding a shield tape insulated wire, once 蓄 after sending this
A method for supplying a shielded electric wire that leads to another device or the like after sagging at a wire portion , wherein the slack portion of the shielded electric wire changes its slackness.
Along the trajectory that moves up and down according to the movement,
The first sensor, the second sensor, and the third sensor
And the passage of the shielded wire is detected by the second sensor.
The shielded wire at a given speed
Sending out, detection of passage of the shielded wire by the third sensor
When the shielded wire is
And the first sensor detects the passage of the shielded wire.
Stop sending out the shielded wire when
Alternatively, a method of supplying a shielded electric wire in which the shielded electric wire is controlled so that the shielded electric wire is sent at a fine movement speed . 2. A wrap die for forming a shielded electric wire by winding a shield tape drawn from a shield tape supply around an insulated wire drawn from an electric wire supply, and a take-out unit for drawing out the shielded electric wire from the wrap die. And a storage unit that temporarily sags the shielded electric wire drawn out by the take-off unit before leading it to another device or the like , wherein the storage unit includes a slack portion of the shielded electric wire.
Along the trajectory that moves up and down according to the variation of the slack,
A first sensor provided in order from the bottom to the top,
Detection of passage of the shielded electric wire by the second sensor, the third sensor, and the second sensor
The shielded wire at a given speed
Sending out the shielded electric wire by the third sensor.
When passage is detected, the shielded wire is
Sending out at a speed faster than the fixed speed,
When the passage of the shielded wire is detected by the sensor
Stop sending the shielded wire or
A shielded electric wire supply device , comprising: a control means for controlling a drawing speed of the shielded electric wire of the take-up section so as to send out the shielded electric wire at a fine movement speed .