JPH1189040A - Re-stranding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure concurrent de-stranding and reliable protection of wire by enabling coping with the changes in the kind of wires stranded, at the time of de-stranding the stranded wires. SOLUTION: A holding member 26 is arranged facing opposing a setting board 11 which sets stranded wires W. The holding member 26 is coupled to a driving means via a buffer means 25 and is driven so as to hold the stranded wires W. The driving means 21 is provided with a regulating means 24 for regulating the buffer position, at the time of holding the wires to the constant position. Thereby, the holding pressure of the holding member 26 is applied to the stranded wires W under a condition that such a holding pressure is buffered with the predetermined elastic force which has been regulated in advance by a regulating means 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a untwisting device.

[0002]

2. Description of the Related Art Conventionally, in processing a stranded wire in which a plurality of electric wires such as a communication cable are twisted and integrated, a stranded wire serving as a work is placed on a plate-like member.
A twist reversing device has been developed which displaces the pressure member relative to the plate member while pressing the plate against the plate member with the pressure member to untwist each of the electric wires (for example, Japanese Utility Model Application Laid-Open No. HEI 3-103).
-48317).

[0003] In the prior art, an operator grips the pressing member by hand and untwists the stranded wire manually. At this time, in order to prevent an excessive force from being applied to the electric wire from the pressing member, the pressing member has a pressing portion for pressing the electric wire, and the pressing portion is relatively moved along the pressing direction to the electric wire. It has a holding portion that displaceably holds, and an urging member that is provided between the holding portion and the pressing portion and urges the pressing portion in the pressing direction.

[0004]

In the above-mentioned urging member of the prior art, the load is only buffered when the operator manually presses the electric wire with the pressing member. When the type of the stranded wire is changed, for example, the clamping pressure varies and the number of electric wires constituting the stranded wire changes, a sufficient buffer function cannot be achieved. For this reason, untwisting of the stranded wire is difficult to be performed, and an unbalanced load sometimes acts on the electric wire.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and when the wire is untwisted, it is possible to cope with a change in the type of the stranded wire, thereby improving the untwisting performance and ensuring the reliability of the wire. An object of the present invention is to provide a untwisting device that can achieve both protection and protection.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a mounting table on which a stranded wire is mounted, and a mounting table which is disposed to face the mounting table and cooperates with the mounting table to form the stranded wire. A squeezable squeezing member, a squeezing position connected to the squeezing member, and a squeezing position where the squeezing member is brought close to the mounting table to squeeze the stranded wire, and a release position where the squeezing wire is separated from the mounting table to release the stranded wire. A driving means for driving the pressing member between the driving means, and a buffer means provided between the driving means and the pressing member, the buffer means for buffering a pressing force acting on the stranded wire when the pressing plate is pressed. By displacing the pressing member horizontally in a state of being sandwiched between the mounting table and the pressing member, a twist reversion device that returns the twist of the stranded wire that has been pressed, provided in the driving means, Characterized by providing a regulating means for regulating the buffer position of the buffer means at the time of pinching pressure, It is a device.

[0007] In the invention including this specific matter, when the clamping force by the clamping member is buffered by the buffering means, the regulating means provided in the driving means regulates the buffering position. The pressing member presses the stranded wire while the position is always kept constant. As a result, the squeezing pressure of the squeezing member acts on the stranded wire while being buffered by a desired elastic force defined in advance by the defining means.

In a preferred aspect, the defining means includes an adjusting mechanism capable of adjusting a defined buffer position. In the invention including this specific matter, it is possible to change the buffer position by the adjusting mechanism of the defining means so as to cope with stranded wires having different diameters. In another preferred embodiment, the apparatus further comprises a reciprocating means configured to be capable of displacing the driving means, and reciprocating the pressing member in the horizontal direction in conjunction with the driving means.

In the invention including the specific matter, the driving of the pressing member can be automated. According to another aspect of the present invention, there is provided a mounting table on which a stranded wire is mounted, a pressing member disposed to face the mounting table, and capable of pressing the stranded wire in cooperation with the mounting table; A drive that is connected to the pressing member and drives the pressing member between a pressing position where the pressing member is brought close to the mounting table to press the stranded wire and a release position where the pressing member moves away from the mounting table and releases the stranded wire. Means, a twist unwinding device that returns the twist of the stranded wire that has been pressed, by horizontally displacing the pressing member in a state where the stranded wire is sandwiched between the mounting table and the pressing member, A regulating means provided in the driving means and for regulating the clamping position of the clamping means at the time of clamping, and an adjusting mechanism provided in the regulating means and capable of adjusting the prescribed clamping position. Is a twist-back device.

[0010] In the invention including this specific matter, the distance that the clamping member approaches the mounting plate can be adjusted by the adjusting mechanism, and accordingly, it is possible to cope with the wire diameter of the electric wire forming the stranded wire. Thus, the pinching position can be changed.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
A preferred embodiment of the present invention will be described in detail. FIG. 1 is a perspective view showing a schematic configuration of a untwisting device 10 according to one embodiment of the present invention.

Referring to FIG. 1, a untwisting device 10 in the illustrated embodiment is mounted on a work table 1 and includes a mounting table 11 for mounting a stranded wire W serving as a work, and a mounting table 11. A pressurizing unit 12 provided above the mounting table 11 and a drive unit 13 for driving the pressurizing unit 12 in parallel are provided. The mounting table 11 is made of hard rubber having a high coefficient of friction.

The pressurizing unit 12 includes an air cylinder 2
1, a driving plate 23 attached to the operating portion 22 of the air cylinder 21, a driving plate 23 and the air cylinder 21
And a regulating unit 24 for regulating the stroke length of the air cylinder 21 so as to be changeable.
A spring unit 25 disposed on the driving plate 23 as a buffering means;
And a pressing plate 26 as a pressing member connected to the operating portion 22 through

The air cylinder 21 is disposed along the vertical direction, and directs the operating portion 22 downward. The operating portion 22 has a pair of rods 22A driven up and down by an air cylinder 21 and a block 22B fixed to a lower portion of the rod 22A. A driving plate 23 is fixed to a lower surface of the block 22B. Have been.

The driving plate 23 is a sheet metal member formed in a rectangular shape in plan view, and is for transmitting the driving force of the air cylinder 21 to the pressing plate 26 via a spring unit 25 described later. FIG. 2 is an exploded perspective view showing a main part of the defining unit in the embodiment of FIG.
FIG. 2 is a schematic partial cross-sectional view showing a main part of a defining unit in the embodiment of FIG. With reference to FIGS. 1, 2 and 3, defining unit 24 includes an adjusting unit 30 provided on the head of the air cylinder 21 and a regulating unit which stands on drive plate 23 and faces adjusting unit 30. And a pillar frame 40 integrally having the portion 41 as a main element.

Referring to FIG. 2, the adjusting section 30 includes an adjusting base 31 fixed to the head of the air cylinder 21.
And an adjustment dial 32 attached to the adjustment base 31 as main parts. Adjust base 31
Is provided on its upper surface with a substantially semicircular groove 31A and this groove 31A.
And an end wall portion 31B for closing one end portion of the adjusting dial 32. By receiving the outer peripheral surface of the adjusting dial 32 in the groove 31A, the adjusting dial 32 is slidably supported in the circumferential direction and the axial direction.

The adjusting dial 32 has an adjusting portion 32A formed in a polygonal column shape, perfect circular portions 32B and 32C extending at both ends of the adjusting portion 32A, and one perfect circular portion 32B.
Is a hollow body integrally formed with a photographing part 32F extending through a neck 32E. The adjusting portion 32A has a plurality of surfaces 32G, and receives the defining portion 41 of the pillar frame 40 described later by the surfaces 32G (see FIG. 3). The adjustment part 32A is continuous with the perfect circle parts 32B and 32C formed concentrically with each other. The diameters of the perfect circle portions 32B and 32C are set along the arc surface of the groove 31A of the adjustment base 31, so that the circles 32B and 32C can smoothly rotate around the same rotation center O on the groove 31A. Is configured. In contrast, the adjustment unit 3
Each of the surfaces 32G of the 2A has a different distance from the rotation center O. Therefore, every time the surface 32G is changed, the anvils 21, 2 supported on the surface 32G are changed.
The height of 2 will be replaced.

The taking section 32F is an annular body whose outer periphery is knurled. In the illustrated example, the photographing unit 32F
A symbol 32H such as a numerical value is displayed on an end face of the adjustment section 32A, and the symbol 32H is indicated for each surface 32G of the adjustment section 32A to indicate the height of the corresponding surface 32G and its level. Next, referring also to FIG.
2 has a large-diameter insertion hole 3 opening toward the photographing unit 32F.
2J and a small-diameter insertion hole 32K opening on the opposite side are formed concentrically with the rotation center O. And
A hexagonal hole bolt 33 is inserted through the opening of the large-diameter insertion hole 32J, and is screwed into a screw hole 31C formed in an end wall 31B of the adjustment base 31, so that the adjustment dial 32 can be rotated. It is designed to be attached to the unit 11.

In order to prevent the adjusting dial 32 from rotating during the untwisting operation of the stranded wire, the end wall 31 is prevented from rotating.
B has a stopper projection 31D protruding therefrom, and an end surface of a perfect circle portion 32C of the adjustment dial 32 is provided with a bottomed hole 32 drilled at an interval on the same circumference.
Many L are formed. Each of the holes 32L has a predetermined phase relationship with each of the surfaces 32G, so that even when any of the surfaces 32G is selected, any of the holes 32L can be fitted into the stopper projection 31D. I have.

To retract the adjustment dial 32 from the stopper projection 31D, the adjustment dial 32
Is configured to be relatively displaceable with respect to the hexagonal hole bolt 33 along the rotation center O. At the same time, the compression coil spring 3 is placed between the head 33B of the hexagonal hole bolt 33 and the shoulder 32M formed inside the adjustment dial 32.
4 is contracted.

Further, a safety cover 35 is fixed to the front end face of the adjust base 31 with screws 36. The cover 35 integrally has an end wall 35B formed with a slit 35A through which the neck portion 32E of the adjustment dial 32 is inserted, and a top plate 35C that is continuous with the end wall 35B in an L-shape. And the top plate 35C, the adjusting dial 32 and a defining portion 41 described later.
And covering.

On the other hand, the pillar frame 40 is provided so that the side of the air cylinder 21 can be guided up and down.
Are screwed to the drive plate 23 in a state of being connected to the drive plate 23. The defining portion 41 is cantilevered at the top of the pillar frame 40, and its lower surface faces the surface 32 </ b> G of the adjust dial 32 from above, so that the stroke length of the air cylinder 21 when the air cylinder 21 is extended. H
Is specified.

Returning to FIG. 1, at the four corners of the driving plate 23, the spring units 25 are provided. Each of the spring units 25 has a lower end fixed to a corner of the pressure plate 26 and an upper end formed on a shaft 25 passing through the driving plate 23.
A, a sleeve holder 25B protruding from the drive plate 23 and allowing vertical movement without the upper end portion of the shaft 25A being detached, and a sleeve holder 25B disposed on the outer periphery of the shaft 25A, and between the drive plate 23 and the pressure plate 26. Coil spring 25 contracted
C. And the spring unit 25
Is normally in a state where the driving plate 23 is separated from the pressure plate 26 by the urging force of the coil spring 25C. When the pressure plate 26 presses the stranded wire W by the air cylinder 21 as described later, the coil spring 25C Is bent to absorb the load.

The pressure plate 26 comprises a thin metal plate 26A and a rubber plate 26B attached to the lower surface of the metal plate 26A. The rubber plate 26B presses the stranded wire W between the mounting table 11 and the rubber plate 26B. Thereby, the stranded wire W is loosened.
Next, the drive unit 13 includes an air cylinder 51 fixed to a mounting frame (not shown) and extending horizontally,
And a rail 52 fixed to the mounting frame in parallel with the air cylinder 51.

The rod 53 of the air cylinder 51 carries the air cylinder 21, and the rail 52 guides the back of the air cylinder 21 so as to reciprocate in parallel. Next, in the illustrated embodiment, a control unit 6 for interlocking the air cylinders 21 and 51 is used.
It has 0. The control unit 60 is constituted by a microprocessor and other electric components, and each of the air cylinders 21 and
51 is controlled.

Next, the operation of the above embodiment will be described with reference to FIG. FIG. 4 is a schematic front view showing the operation of the untwisting device 10 in the embodiment of FIG.
(A) shows the middle of pressurization, and (B) shows the end of pressurization. Referring to FIG. 1 and FIG. 4 (A), the stranded wire W is placed on the
1 is operated, first, the rod 22 of the air cylinder 21 is operated.
Is extended, and the driving plate 23 is lowered by the stroke length H specified by the specifying unit 24. Thus, the pressing plate 26 presses the stranded wire W between the stranded wire W and the mounting table 11. At this time, the coil spring 25C of the spring unit 25 provided between the pressing plate 26 and the driving plate 23 bends, so that the pressing force of the pressing plate 26 is transmitted to the stranded wire W in a buffered state. As described above, the control unit 60 (see FIG. 1) extends the rod 53 of the air cylinder 51 while the stranded wire W is elastically clamped. As a result, the pressurizing unit 12 moves forward in one horizontal direction (left side in the figure) as a whole as shown in FIG.
The twist is returned by the relative displacement of No. 6. In this process, the height of the stranded wire W gradually decreases, but the coil spring 25C of the spring unit 25 extends, so that the pressure plate 2
No. 6 performs the untwisting operation while following the change in the diameter of the stranded wire W.

When the untwisting operation is completed, the control unit 60 sets the rods 22, 53 of the air cylinders 21, 51.
At the same time. As a result, the air cylinder 21 double-acts to the original position while the pressure plate 26 separates from the mounting table 11, and returns to the initial state. As described above, according to the above-described embodiment, when the squeezing force of the squeezing plate 26 is buffered by the spring unit 25 as the buffering unit, the regulating unit 24 provided in the air cylinder 21 as the driving unit is provided with the buffering unit. By defining the position (the position of the driving plate 23 shown in FIGS. 4 (A) and 4 (B)), the pressing plate 26 holds the stranded wire W while the spring unit 24 is always kept constant during the pressing. Press. As a result,
The clamping pressure of the clamping plate 26 acts uniformly while following the deformation of the stranded wire W in a state of being buffered by a desired elastic force prescribed by the regulating unit 24 in advance.

As described above, in the illustrated embodiment, the squeezing force of the pressing plate 26 acting on the stranded wire W can be transmitted to the stranded wire W while being buffered by a desired elastic force. Even if the number of electric wires constituting
Is easy to follow the deformation of the stranded wire W, and the unbalanced load is less likely to occur. As a result, a remarkable effect that the untwisting performance is improved and the electric wires constituting the stranded wire W can be surely protected. Play.

In particular, since the buffering position can be adjusted by the adjusting section 30 of the defining unit 24, even if the wire diameters of the wires constituting the stranded wire W are different, it is possible to easily cope with the change of the wire type. Therefore, there is an advantage that further versatility can be provided. Further, as described above, if the pressing position by the pressing plate 26 is changed by the defining unit 24, the wire type can be changed (diameter of each wire constituting the stranded wire W) even in a configuration in which the spring unit 25 is omitted. From this point, a remarkable effect that the untwisting performance can be improved and the electric wire can be surely protected can be achieved. In the configuration in which the spring unit 25 is omitted, the position of the pressing plate 26 in FIG. 4B is the pressing position, and the position is adjusted depending on the type of wire.

The above embodiment is merely an example of a preferred specific example of the present invention, and the present invention is not limited to the above embodiment. For example, the configuration of FIG. 5 can be adopted as the adjustment unit. FIG. 5 is a perspective view schematically showing a main part of another embodiment of the present invention. As shown in the drawing, an adjusting base 71 to which a spacer 70 having a different height h can be attached and detached is provided as an adjusting portion of the regulating unit 24, and the spacer 70 attached to the adjusting base 71 is changed. May be adopted.

As the pillar frame, a gate-shaped pillar frame 73 in which both ends of the defining portion 72 are supported as shown in the figure may be employed. It goes without saying that various changes can be made within the scope of the claims of the present invention.

[0032]

As described above, according to the present invention,
Since the squeezing pressure of the squeezing member acting on the stranded wire can be transmitted to the stranded wire in a state of being buffered by a desired elastic force, the squeezing member can be connected to the stranded wire even if the number of wires constituting the stranded wire changes. As a result, it becomes easy to follow the deformation of the wire, and it becomes difficult to generate an unbalanced load. As a result, a remarkable effect that the untwisting performance is improved and the electric wire can be surely protected is exhibited.

In particular, when the buffering position can be adjusted by the adjusting mechanism of the defining means, even if the wire diameters of the wires constituting the stranded wire are different, it is possible to easily cope with the change of the wire type. There is an advantage that it can have more versatility. Further, in another aspect of the present invention, by changing the pinching position by the pinching plate, it is possible to cope with a change in the wire type.From this point, the untwisting performance is improved, and the protection of the electric wire is surely performed. It has a remarkable effect that it can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a schematic configuration of a untwisting device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a main part of a defining unit in the embodiment of FIG.

FIG. 3 is a schematic partial sectional view showing a main part of a defining unit in the embodiment of FIG. 1;

4A and 4B are schematic front views showing the operation of the untwisting device in the embodiment of FIG. 1, wherein FIG.
(B) shows the end of pressurization.

FIG. 5 is a perspective view schematically showing a main part of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Twist unwinding device 11 Mounting table 21 Air cylinder 24 Regulation unit (regulation means) 25 Spring unit (buffering means) 26 Pressing plate 51 Air cylinder

Claims (4)

[Claims] 1. A mounting table on which a stranded wire is mounted, a pressing member arranged opposite to the mounting table, and capable of cooperating with the mounting table to press the stranded wire, and being connected to the pressing member; A driving unit that drives the pressing member between a pressing position where the pressing member is brought close to the mounting table to press the stranded wire and a release position where the pressing member moves away from the mounting table and releases the stranded wire; Buffer means provided between the mounting member and the pressing member, the buffer means for buffering a pressing force acting on the stranded wire when the pressing plate is pressed. A twisting unwinding device for untwisting the twisted stranded wire by displacing the pressure member horizontally, a regulating means provided in the driving means for defining a constant buffering position of the buffering means during clamping. A untwisting device characterized by comprising: 2. The untwisting device according to claim 1, wherein said defining means includes an adjusting mechanism capable of adjusting a defined buffer position. 3. The untwisting device according to claim 1, further comprising a reciprocating means configured to displace the driving means, and to reciprocate the pressing member in the horizontal direction in conjunction with the driving means. Untwisting device. 4. A mounting table on which a stranded wire is mounted, a pressing member arranged opposite to the mounting table and capable of cooperating with the mounting table and pressing the stranded wire, and being connected to the pressing member. A driving means for driving the pressing member between a pressing position in which the pressing member is brought close to the mounting table to press the stranded wire and a release position in which the pressing member is separated from the mounting table to release the stranded wire, A twist unwinding device that untwists the stranded wire that has been pinched by horizontally displacing the pinching member in a state where the stranded wire is sandwiched between the mounting table and the pinching member, provided in the driving means. And a regulating means for regulating the clamping position of the clamping means at the time of clamping, and an adjusting mechanism provided on the regulating means and capable of adjusting the prescribed clamping position. To untwist.