JPH0515390Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> Normally, when electronic equipment receives disturbance noise, it often occurs at the interface between systems or between devices; , electrostatic induction, electromagnetic coupling,
It is recognized that noise transmission paths exist due to parasitic constants not shown in the wiring diagram, such as common impedance coupling.

As a measure against this noise, it is said that it is better to use twisted wires than to use them in parallel, and that it is more effective to use twisted wires with a large number of twists.

The present invention relates to a wire support used in a wire twisting machine that twists a plurality of wires together to prevent noise.

<Prior Art> Conventionally, as described above, devices for twisting electric wires together to prevent noise have been manufactured, sold, and used by general electrical equipment manufacturers.

However, most conventional electric wire twisting machines of this type were large machines that twisted together hundreds of meters of long electric wire wound on a drum.

<Problem that the invention aims to solve> However, a large number of electric wires are used in electronic equipment, and each electric wire is coded in various colors to avoid mixing and connecting incorrectly, and to make connections easier and faster. is usually used.

Conventional large electric wire twisting machines twist long electric wires together, so in order to use twisted electric wires with various color codes and color combinations for the above-mentioned electronic devices, it is necessary to twist electric wires with different numbers of twists and wires. In order to freely use wires of different diameters and large and small wire diameters, a huge amount of twisted wires had to be kept on hand.

In order to eliminate this drawback, the present invention makes it possible to easily and easily twist any wires suitable for use as needed, and the number of twists can also be adjusted arbitrarily depending on the wire diameter and the location of use. A wire support that can be used in a small wire twisting machine that is easy to set up and that can easily support the ends of wires, and that can be used to easily untwist the wires after twisting. It is an object of the present invention to provide a wire support that allows for less twisting.

<Means for Solving the Problems> The present invention relates to a wire support for a wire twisting machine that can achieve the above objectives, and includes:
The structure will be explained using FIGS. 1 to 6 corresponding to the embodiment. The wire support for a wire twisting machine according to the present invention includes a motor M, and a speed reducer 1 attached to the motor M.
A wire holder A is fixed to the rotating shaft 2 of the wire twisting machine main body B having a rotating shaft 2 connected to the rotating shaft 2 through Positioned and twisted wires K
...A wire support C used for holding the other end side, which includes a wire support frame 3 fixed in a non-rotating state, and a plurality of wires formed independently of each other in the wire support frame 3. It consists of insertion holes 31... and a structure in which a plurality of wires K to be twisted inserted into each of the wire insertion holes 31... can easily rotate.

<Function> When using the electric wire support C for the electric wire twisting machine having such a structure, first, the electric wire holder A holds one end of the electric wire K in the required number, and the other end of the electric wire K is attached to the electric wire. After separately inserting and supporting the wires into the respective wire insertion holes 31 of the support C, the rotating shaft 2 of the wire twisting machine main body B may be rotated.

When using the wire support C for a wire twisting machine having such a structure, first rotate the intermediate member 5 of the wire holder A in the circumferential direction against the biasing force of the spring 7. As shown in the figure, the wire insertion holes 41 and 61 of the front and rear members 4 and 6 are brought into open communication state, and the wire K near one end is inserted into the wire holder A.
After inserting the wire K into the wire insertion hole 41, 61, release the hand and let the wire K... be held in the hole 41, 61 by the urging force of the spring 7, and the other end side of the wire K... is inserted into the hole 41, 61. Wire support C The wire holder A is rotated to twist a plurality of wires together. When twisting the electric wires, the desired total number of twists is set by operating the rotation speed setting device 3 before the twisting operation, taking into account the length, thickness, number of twists between a predetermined length, etc. of the electric wires. Then, the wire holder A rotates by a set number of rotations, and a twisted wire K' having the required set number of twists is obtained.

<Examples> Examples of the present invention will be described below based on the drawings.

In addition to vinyl-covered wires, the electric wires mentioned in the present invention include rubber-covered wires, enamel-covered wires, etc., and any wires that are coated wires and can be twisted together may be used. Further, the covered wire may be a collection of fine wires or a single wire. Furthermore, the twisting is not limited to only electric wires of the same type and diameter, but may also be a twisting of electric wires of different types and different diameters, such as a combination of a collective electric wire and a single wire, a large-diameter electric wire and a small-diameter electric wire, etc.

The embodiment shown in Figs. 1 to 6 is one embodiment of the present invention. First, the main body B side of the wire twisting machine will be explained. The main body B of the wire twisting machine is shown in Figs. As shown in the outline, a box-shaped housing 12 includes a forward/reverse motor M, a speed reducer 1, a brake 11 using an electromagnetic clutch, and various wiring mechanisms (not shown). A rotating shaft 2 is formed protruding from the rotating shaft 2, and an electric wire holder A is fixed to the rotating shaft 2. As shown on the right side of FIG. 1 and enlarged in FIG. The rear member 4 has a convex fitting part 44 for attachment, and has four through-round wire insertion holes 41 formed along the axial direction, and the convex part on the back side. Four through-round electric wire insertion holes 61 . . . have concave fitting portions 62 that fit with the electric wire insertion holes 44 and are formed along the axial direction at positions that match the electric wire insertion holes 41. a front member 6 fixed to the rear member 4 by bolts 9; An intermediate member 5 having four through-holes 51 serving as wire pressing parts that open and close the wire insertion holes 41 and 61 and press the wire, and located between the rear member 4 and the intermediate member 5, The intermediate member 5 is inserted into both the wire insertion holes 4.
1 and 61, and when the intermediate member 5 is rotated in the circumferential direction against the urging force of the spring 7, both the wire insertion holes 41 , 61 are in an open communication state, and both the front and rear members 6, 4 have connecting pin holes 63, 4 as shown in FIG.
6 are formed in opposing positions, and their relative positions are regulated by a position regulating connecting pin 8, and a long hole 52 is formed in the intermediate member 5 as shown in FIG. The pin 8 is inserted through the elongated hole 52 so that the intermediate member 5 can be rotated in the circumferential direction within the margin of the elongated hole 52.

Further, as shown in FIGS. 1 and 6, the coil spring 7 has one end connected to the locking hole of the intermediate member 5.
3, the other ends are respectively locked in the locking holes 47 of the rear member 4, so that the intermediate member 5 is constantly biased in the clockwise direction.

In addition, the rear end side 42 of the rear member 4 is formed to have a small diameter, and as shown in FIG. , the amount of insertion of the wire end into the hole can be freely adjusted.

Therefore, the electric wire support B according to the present invention, as shown on the left side in FIG. 1 and the front and rear sides in FIGS. 2 and 3,
It is disposed at a position away from the electric wire holder A and facing the electric wire holder A (see FIGS. 4 and 5), and is for supporting the other end side of the electric wire K, and is placed on the fixing base 14. The lower end side is slidably mounted on horizontal shafts 15, 15 installed in the wire holder A through guide holes 35, 35, and is always biased by coil springs 16, 16 in a direction away from the wire holder A side. The wire support frame 3 is erected in this state. Four bearings 32... are arranged and fixed on the support frame 3, and a ring 33 having a wire insertion hole 31 is fixed in the center of each ring 32, so that each ring 33 can rotate freely by the bearings 32. There is. Each of these rings 33 has a structure in which a clip-shaped wire clamping tool 34 for clamping the electric wire K is fixed thereto. The wire support frame 3 also includes a guide ring 17 for converging and guiding the wire toward the wire holder A side.
are arranged so as to be located at the center of each of the wire insertion holes 31.

In order to twist a plurality of electric wires K using the electric wire support C configured in this way, first, as described in the section of the operation, the intermediate member 5 of the electric wire holder A is applied to the biasing force of the spring 7. The wire insertion holes 41 and 61 of the front and rear members 4 and 6 are rotated in the circumferential direction against the resistance, so that the wire insertion holes 41 and 61 of the front and rear members 4 and 6 are opened and communicated with each other as shown in FIG. After inserting the wire K into the wire insertion hole 41, 61 of A, release the hand and use the biasing force of the spring 7 to insert the wire K into the hole 41, 61.
61, the other end of the wire K is bundled and passed through the guide ring 17 of the wire support C, and then each wire is inserted into the wire insertion hole 31 individually, and the outer end thereof is inserted into the wire insertion hole 31. The portion can be held by the wire holding tool 34 (see FIG. 4). After doing this, the power switch of the wire twisting machine main body B is turned on, the direction of rotation of the rotating shaft 2 is determined by the forward/reverse changeover switch, and the motor M is started. By operating in this way, the motor M rotates, and the reduction gear 1
When the rotating shaft 2 rotates through the wire holder A, the electric wire holder A rotates, and the electric wire K is twisted into a strand K' from the state shown in FIG. 4 to the state shown in FIG. During this twisting action, the electric wires K are revolved on the electric wire holder A side as shown in FIG. 1, while individually rotating on the electric wire support C side as shown by the rotation arrows. Therefore, as each wire K is twisted, the spring 1
While pulling the wire support frame 3 toward the wire holder A side against the tensile force of 6, the stranded wire K' is obtained which is twisted with little self-twisting.

The stranded wire K′ obtained in this way is twisted a predetermined number of times depending on the thickness and length, and even after being removed from the wire holder A and the wire support C, there is little self-twisting. There is almost no natural untwisting action, and even if left untwisted, it is easy to maintain a predetermined number of twists for a long time.

For this electric wire twisting, the desired total number of twists is set by operating the rotation speed setting device of the twisting machine body B before the twisting operation, taking into account the length, thickness, number of twists between a predetermined length, etc. of the electric wire. When set, the wire holder A rotates by the set number of rotations, and a twisted wire K' having the required set number of twists is obtained.

As the electric wire rotation means of the electric wire insertion hole 31 according to the present invention, in addition to the one in which the hole 31 itself is actively formed to be rotatable using a bearing as shown in the above embodiment, for example, By forming the peripheral wall surface forming the ring 31 into a smooth surface like the ring 33 shown in the above embodiment,
It is also possible to employ a means that minimizes the frictional resistance with the electric wire. In addition, as the wires are twisted together, the overall length becomes gradually shorter, so
If it is made to be able to freely slide in the hole 31, the wire support frame 3 itself does not have to be structured to move forward.

Further, the number of wire insertion holes 31 is not limited to the four shown in each of the above embodiments, but it is sufficient to have at least two, and it is also possible to form three, five, or six wire insertion holes. be.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. It can be implemented with appropriate modification within the scope of achieving the following effects.

<Effects of the invention> As is clear from the above explanation, the wire support for the wire twisting machine according to the present invention is arranged at a position opposite to the wire holder that holds the wires and twists the wires. The structure is such that the other end of the wire is supported and the wire can rotate while supported in the hole, so the other end of the wire to be twisted is inserted into the wire insertion hole. Not only does it have the advantage of being extremely easy to insert and support, but the wires themselves that are inserted and supported into the hole can rotate independently within the hole.
Therefore, during twisting, it is possible to obtain twisted wires with less twist in each wire itself, so there is less untwisting after twisting, and the number of twists applied during twisting can be almost certainly maintained. This made it possible to obtain twisted electric wire.
Further, it has an extremely useful and practical effect in that electric wires with different coating colors and electric wires with different diameters can be freely selected on the spot, supported, and twisted.

[Brief explanation of drawings]

Fig. 1 is a partially cut away vertical sectional view showing an embodiment of the device of the present invention, Fig. 2 is a front view of the main part, Fig. 3 is a rear view of the main part, and Figs. 4 and 5 are respectively the device of the invention. FIG. 6 is an exploded perspective view showing the electric wire holder. In the figure, 1 is a speed reducer, 2 is a rotating shaft, 3 is a wire support frame, 31 is a wire insertion hole, A is a wire holder, B is the wire twisting machine body, C is a wire support, K is a wire, M
indicates a motor.

Claims (1)

[Claims for Utility Model Registration] A wire twisting machine body B having a motor M and a rotating shaft 2 connected to the motor M via a speed reduction device 1 is fixed to the rotating shaft 2 of the wire twisting machine body B to twist a plurality of twisted objects. A wire support C used to hold the other end of the wire K to be twisted, which is located opposite the wire holder A used to hold one end of the wire K, and is in a non-rotating state. A wire support frame 3 fixed to the wire support frame 3, and a plurality of wire insertion holes 31 formed independently of each other in the wire support frame 3...
An electric wire support for an electric wire twisting machine comprising: ... and a structure that allows a plurality of electric wires K to be twisted inserted into each of the electric wire insertion holes 31 to easily rotate. An electric wire support for an electric wire twisting machine according to claim 1, wherein two electric wire insertion holes 31 are formed. An electric wire support for an electric wire twisting machine according to claim 1, wherein four electric wire insertion holes 31 are formed. An electric wire support for an electric wire twisting machine as set forth in claim 1 of the utility model registration claim, in which six electric wire insertion holes 31 are formed. An electric wire support for an electric wire twisting machine according to claim 1, wherein the electric wire insertion hole 31 is freely rotated by a bearing 32.