JPH11180639A - Electric wire entanglement decreasing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deliver an electric wire without catching of the electric wire to an electric wire part of a gripping electric wire when the electric wire is delivered from the gripping wire and without generating entanglement of the electric wire. SOLUTION: An electric wire 2 to be delivered from a gripping electric wire is pinched by arched groove provided rollers 16, and this electric wire 2 is rotated around the axes and delivered while disentangling the ring of the electric wire to be delivered from the gripping wire. Moreover, the electric wire is pinched between upper and lower flat rollers 20 arranged on the downstream side of the arched groove provided rollers, and therefore, twist of the electric wire is prevented from affecting a work part for processing the electric wire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire entanglement reducing device used to draw out an electric wire from a bundled wire when performing a process such as crimping a terminal to an electric wire such as a wire harness.

[0002]

2. Description of the Related Art A variety of wire harnesses for automobiles are available.
In order to be able to easily cope with small lots, electric wires are being stored in packages from a pail state to a donut-shaped state. As shown in FIG. 6, in order to perform a process such as terminal crimping on the electric wire, when the electric wire 2 is drawn out from the held electric wire, that is, the electric wire 2,
As shown in FIG. 6, there is a tendency that the wire is fed out while forming several loops from the bundled wire 1.

[0003] However, since the electric wire 2 is shaped into a small state, the electric wire 2 is strongly twisted and easily collapses due to vibration or the like during transportation.
When the electric wire 2 is fed out while forming the ring 2a from
There is a tendency that the appearance of the bundle of the bundle of electric wires 1 is distorted, and that the electric wires 2 that are not to be fed out in the bundle of electric wires 1 are wound together and fed out, so that the electric wires 2 become entangled. Such an electric wire 2
In order to prevent the entanglement of the electric wire 2, it is required that the bundled wire 1 be rotated in the payout direction (the direction in which the wire 2 is unraveled from the bundled wire 1) according to the payout speed (linear speed) of the wire 2.

Until now, a rotary supply 3 as shown in FIG. 8 has been used to rotate the holding wire 1 in the feeding direction according to the feeding of the electric wire 2. The rotary supply 3 includes a basket-shaped turntable 5 rotated by a motor 4, and the bundle 1 is mounted on the turntable 5. A wire speed sensor 7 supported by a column 6 is disposed above the turntable 5, and the electric wire 2 drawn out of the bundle wire 1 is guided to electric wire processing means via the wire speed sensor 7. The wire speed of the electric wire 2 corresponds to the processing speed of the electric wire processing means.

Since the turntable 5 rotates in the feeding direction of the wire 2 at a speed proportional to the wire speed of the wire 2 detected by the wire speed sensor 7, in the case of FIG. As shown in FIG. 7, since the loop of the electric wire 2 is unraveled, the package of the electric wire 2 is hardly disturbed, and the electric wire 2 is not drawn out by entanglement with the electric wire portion in the electric wire 1, 2 can be smoothly fed out.

[0006]

When the electric wire 2 forms a wire harness, the wire harness is formed from the multicolor, multidiameter, multiproduct variety of the electric wire 2, so that all of the wire of one type is handled. After the processing is completed, instead of processing wires of other types, wires of various types are appropriately replaced to process wires. In this manner, one wire on the turntable is processed. When replacing a wire with another wire, it takes a lot of time to replace the wire, and when the wire is replaced, the wire tends to collapse. There is a possibility that the wires may collapse. This collapse of the bundle of electric wires causes the electric wires to be easily entangled even when the electric wires are fed in the direction in which the electric wires are fed by the turntable.

[0007] The problem to be solved by the present invention is that even when processing different types of electric wires, there is no need to carry out replacement work on a turntable, so that the wires become entangled due to the collapse of the bundle. It is another object of the present invention to provide an electric wire entanglement reducing device capable of feeding out an electric wire.

[0008]

The object of the present invention is to provide an electric cable which is disposed between an electric wire supply means and an electric wire processing means for processing an electric wire drawn from the electric wire on the electric wire supply means. An electric wire entanglement reducing device for unwinding an electric wire while reducing the entanglement of the electric wire, the upper and lower rollers having a plurality of arc-shaped grooves which successively pass through the electric wire which is fed from the holding wire while rotating around its axis. And a combination of a plurality of upper and lower flat rollers arranged downstream of these circular grooved rollers and guiding the electric wires while preventing the rotation of the electric wires. It is in.

As described above, when the electric wire drawn out of the electric wire passes through the upper and lower rollers with the circular grooves, the electric wires engage with the outer peripheral surfaces of the circular grooves of the circular grooves with different outer diameters. Therefore, the feed speed of the wire portion contacting the outer peripheral portion having a large outer diameter is large, and the feed speed of the wire portion contacting the outer peripheral portion having a small outer diameter is reduced, so that the wire is rotated around its axis. It is paid out. Since this rotation imparts a twist to the electric wire, by making the direction of twisting of the electric wire coincide with the direction of unraveling the loop when the electric wire is paid out, no loop is generated when the electric wire is paid out, and therefore the bundled wire is removed. Since the electric wire portion is not entangled when the electric wire is fed out without being rotated on the turntable, the electric wire can be less entangled.

Further, if it is not necessary to put the wire on the turntable and rotate it, it is not necessary to replace the wire on the turntable when processing different types of wires, and therefore the workability is improved. In addition, the collapse of the load of the bundle at the time of replacement does not occur, so that the entanglement of the wire caused by the collapse of the load of the bundle can be eliminated.

Further, the twist given to the electric wire is prevented from spreading to the electric wire processing means by the upper and lower flat rollers arranged on the downstream side of the arcuate grooved roller, and therefore, the electric wire is straightened by the electric wire processing means. Supplied in a state, the electric wire can be processed smoothly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows an electric wire entanglement reducing device 10 according to the present invention.
Between the electric wire supply means 12 for holding the electric wire 1 so that the electric wire is fed out and the electric wire processing means 14 such as an automatic terminal crimping machine for processing the electric wire 2 fed from the electric wire 1 on the electric wire supply means 12. Be placed.

Although the small wire supply means 12 is shown as being composed of a transport support 12A such as a pallet for holding the small wires 1, it may be the floor itself. When the electric wire processing means 14 is an automatic terminal crimping machine, the automatic terminal crimping machine has a function of cutting the electric wire 2 at predetermined intervals, peeling off the tip, and then crimping the terminal.

As shown in detail in FIG. 2, the electric wire entanglement reducing device 10 includes a plurality of upper and lower members which sandwich the electric wire 2 drawn out from the bundled electric wire 1 from above and below and which sequentially pass while rotating about the axis thereof. Roller 16 having an arc groove and a plurality of upper and lower flat rollers 20 disposed downstream of the roller 16 having an arc groove to guide while preventing rotation of the electric wire.
Consists of a combination with All or a part of the roller 16 with an arc groove and all or a part of the flat roller 20 are:
The electric wire 2 is driven by an appropriate driving means (not shown) to feed out the electric wire 2.

In the illustrated embodiment, the arcuate grooved roller 16 comprises three upper rollers 16A, 16C, 16E and 2
The electric wire 2 sequentially contacts the upper roller 16A, the lower roller 16B, the upper roller 16C, the lower roller 16D, and the upper roller 16E, and contacts the rollers 16A to 16E. Passing while being sandwiched. As shown in FIG. 3, the roller 16 with an arc groove has an arc groove 18 with a concave center on the outer peripheral surface.
Is fed from the right side to the left side in FIG. 2 while contacting the arc groove 18 of the roller 16 with the arc groove.

The flat roller 20 is composed of two lower rollers 20A and 20C and one upper roller 20B. After the electric wire 2 is fed out from the roller 16 with the circular groove, the lower roller 20A, The roller contacts the upper roller 20B and the lower roller 20C sequentially, and passes while being sandwiched by these rollers 20A to 20C. Flat roller 20
4 has an outer peripheral surface 22 that is flat along the axial direction as shown in FIG.
2 is fed out from the right side to the left side in FIG.

The electric wire entanglement reducing device 10 includes upper and lower roller holding frames 24 and 26, and the upper rollers 16A, 16C and 16E of the roller 16 with the arc groove and the flat roller 2
0 upper roller 20B is the upper roller holding frame 2
4 and the lower roller 16 of the roller 16 with the arc groove
B, 16D and the lower roller 20A of the flat roller 20,
20C is supported by the lower roller holding frame 26. The upper roller holding frame 24 is a movable frame that moves up and down by frame moving means 28 described later, and the lower roller frame 26 is a fixed frame.

The frame moving means 28 comprises an air cylinder 32 mounted on a cylinder base 30. A piston 32a of the air cylinder 32 holds the upper roller frame 24. Extending from the upper roller frame 24 are a pair of guide bars 34, 34 which slidably penetrate the cylinder base 30. The upper roller frame 24 is guided by the guide bars 34, 34 to form the air cylinder 32. It moves up and down by the expansion and contraction of the piston 30a.

An inlet-side wire guide 36 and an outlet-side wire guide 38 are fixedly attached to the lower roller frame 26, which is a fixed frame, by screws 40 and 42, respectively. It is guided into and out of the device via 38.

Next, the operation of the wire entanglement reducing device 10 of the present invention will be described in detail with reference to FIG. 1. First, the piston 32a of the air cylinder 32 of the frame moving means 28 is contracted to move the upper roller frame 24 upward. And the upper rollers 16A, 16C and 16E of the circular grooved roller 16 and the upper roller 20B of the flat roller 20 are lowered.
Open for B, 16D and 20A, 20C.

Thereafter, as shown in FIG. 1, the electric wire 2 fed from the electric wire supply means 12 for holding the electric wire 1 is passed through the entrance side electric wire guide 36 to the rollers 16 above and below the arc grooved roller 16 and the flat roller 20. After being drawn out until the front end thereof is located downstream from the flat roller 20, the piston 32a of the air cylinder 32 of the frame advance / retreat means 28 is extended to extend the roller 16 with the arc groove and the upper roller of the flat roller 20 as appropriate. Press with pressure.
Thus, the electric wire 2 is set in the electric wire entanglement reducing device 10. The electric wire 2 set in this way is sequentially
It is paid out from.

As shown in FIG. 5, the roller 16 having a circular groove has a large outer diameter R at an axial end portion 18a of an outer peripheral surface 18 of the circular groove 18 with which the electric wire 2 comes into contact. Rather, the inner portion 18b (near the center in the axial direction) has a small outer diameter r, so that when the roller 16 with the arc groove rotates, the peripheral speed differs between the end portion 18a and the inner portion 18b. Therefore, the roller 1 with the arc groove is
The electric wire 2 passing through the outer peripheral surface of the circular arc groove 18 of 6
The feeding speed (feed speed) is large at the portion of the roller 16 with the arc groove that contacts the end portion 18a of the arc groove 18, and the feeding speed (feed speed) is high at the portion of the roller 16 with the arc groove that contacts the inner portion 18b of the arc groove 18. ) Becomes smaller. For this reason, the wire 2 is fed while being rotated about its axis, and the wire 2 is twisted.

The direction of the twist given to the electric wire 2 is
When the bundle 1 of the bundle supply unit 12 is set so as to coincide with the direction in which the ring 2a is unraveled at the time of feeding,
As shown in FIG. 7, the direction of unraveling the ring 2a as shown in FIG. 6 (when the winding direction of the electric wire 1 is the direction of FIG. 6, as shown in FIG. Direction), and therefore, as shown in FIG. 7, the wire 2a drawn out of the bundle 1 does not generate the loop 2a. Electric wire 2
If the loop 2a does not occur, the loop 2a does not entangle the wire portion of the bundled wire 1 and the occurrence of entanglement of the wire 2 can be reduced. Further, if the entanglement of the electric wire 2 does not occur, the collapse of the bundle of electric wires 1 does not occur. . Furthermore,
Unlike the prior art, there is no need to place the bundle on the turntable and rotate it.
In this case, there is no occurrence of collapse of the bundle of wires 2 which tends to occur during the replacement work, and similarly, no secondary entanglement of the electric wires due to the collapse of the bundle of wires occurs.

When processing different types of electric wires, the positions of the transfer support 12A holding the different types of wires 1 and the transfer support 12A holding the old wires 1 are exchanged. The electric wire 2 can be unwound from the kind of the electric wire 1 in a similar manner without entanglement. In this case, it should be noted that it is not necessary to replace the bundle 1 on the turntable.

The electric wire 2 is fed out while being twisted as described above, but immediately thereafter, passes between the upper and lower flat rollers 20 and is guided to the electric wire processing means 14 through the outlet side electric wire guide 38. This flat roller 20
The flat outer peripheral surface 22 has a function of preventing the twist of the electric wire 2 applied by the roller 16 with the arc-shaped groove from spreading to the electric wire processing means 14, so that the electric wire processing means 14 is straightened out. The processing of the electric wire 2 can be performed smoothly.

[0026]

According to the present invention, as described above, the electric wire drawn from the bundle passes through the upper and lower rollers with the circular grooves, so that the wire drawn from the bundle has the circular groove. The feed speed of the wire portion that contacts the outer circumferential surface with a large outer diameter is large, and the feed speed of the wire portion that touches the outer circumferential surface with a small outer diameter is high because the outer circumferential surface portions of the roller arc grooves that engage with different outer diameters are engaged. The wire is unwound while being rotated about its axis, and the wire is twisted, and thus occurs when the wire is unreeled by matching the direction of twisting of the wire with the direction of unraveling the loop when the wire is unreeled. The ring can be eliminated. For this reason, since the electric wire part in the bundle is not involved when the electric wire is drawn out, it is possible to effectively reduce the entanglement of the electric wire, and if there is no entanglement of the electric wire, a secondary entanglement of the electric wire due to collapse of the load may occur. There is no.

Further, since it is not necessary to place the wire on the turntable and rotate the wire, it is not necessary to replace the wire on the turntable when processing different types of wires, thus improving workability. In addition, the collapse of the load of the bundle at the time of replacement does not occur, so that the entanglement of the wire caused by the collapse of the load of the bundle can be eliminated.

Further, the twist imparted to the electric wire is prevented from spreading to the electric wire processing means by the upper and lower flat rollers disposed downstream of the arcuate grooved roller, and therefore, the electric wire is straightened by the electric wire processing means. Supplied in a state, the electric wire can be processed smoothly.

Further, since the electric wire is twisted by the roller with an arc groove so as to eliminate the twist of the electric wire in the electric wire, and is fed straight out by the flat roller, the electric wire in the electric wire is straightened. It also has the effect of further facilitating wire treatment.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of an electric wire processing system including an electric wire entanglement reduction device according to the present invention.

FIG. 2 is a side view of the electric wire entanglement reducing device according to the present invention.

FIG. 3 shows an arc grooved roller used in the present invention;
FIG. 1A is a side view thereof, and FIG. 1B is a front view thereof.

4A and 4B show a flat roller used in the present invention, wherein FIG. 4A is a side view thereof, and FIG. 4B is a front view thereof.

FIG. 5 is an explanatory diagram for explaining the operation of the roller with the arc groove.

FIG. 6 is a perspective view showing a state in which the electric wire is fed from the bundled electric wire.

FIG. 7 is a perspective view showing a state in which the electric wire is drawn out from the bundle without forming a loop.

FIG. 8 is a perspective view showing a method of feeding out an electric wire from a bundled electric wire without forming a loop according to the related art.

[Description of Signs] 1 bundled wire 2 wire 10 wire entanglement reduction device 12 bundled wire supply means 12A transport support stand 14 wire handling means 16 multiple rollers with upper and lower circular grooves 16A upper roller 16B lower roller 16C upper roller 16D lower side Roller 16E Upper roller 18 Arc groove 20 Upper and lower plurality of flat rollers 20A Lower roller 20B Upper roller 20C Lower roller 22 Flat outer peripheral surface 24 Upper roller holding frame 26 Lower roller holding frame 28 Frame advance / retreat means 30 Cylinder base 32 Air Cylinder 32a Piston 34 A pair of guide bars 36 Inlet wire guide 38 Outlet wire guide

Claims (1)

[Claims] 1. An electric wire which is disposed between an electric wire supply means and an electric wire processing means for processing an electric wire fed from an electric wire on the electric wire supply means, and which feeds out the electric wire from the electric wire while reducing entanglement. An entanglement reducing device, wherein a plurality of upper and lower rollers with circular grooves that sequentially pass while sandwiching the electric wire fed from the bundle from above and below while rotating around the axis thereof, and downstream of the roller with circular grooves An electric wire entanglement reducing device, comprising a combination of a plurality of upper and lower flat rollers arranged on the side and guiding while preventing rotation of the electric wire.