JPS5870787A - Twist reversing apparatus of twisting machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a twisting device for a twisting machine that collects and twists a moderate number of cable cores.

When manufacturing a cable by gathering and twisting a plurality of cable cores, if the cable cores are not twisted, twisting will be applied to the cable cores themselves, resulting in waviness in the cables. On the other hand, if the cable cores are twisted when multiple cable cores are assembled, such cable undulations will be eliminated, but the cross section of the cables in the assembly will deviate significantly from a perfect circle, resulting in a poor appearance. .

For this reason, in order to improve the appearance of the cable without the cables, it is preferable that the twist rate can be changed as appropriate. However, since the twisting rate of the conventional technology is fixed, it is semi-fixed and requires gear replacement, making it difficult to change the twisting rate of the cable.

An object of the present invention is to provide a twisting device for a twisting machine that can arbitrarily and easily change the twisting ratio of a cable.

Embodiments of the present invention will be described in detail with reference to the drawings.
The figure shows a twisting device lO of a twisting machine according to the present invention, and the twisting machine ν includes a cage 16 supported on a bearing (not shown) so as to rotate the central axis 14, and this cage. The cage 16 consists of a plurality of bobbins supported to rotate around the center axis 14 and its own axis, and a cage driving source such as a motor that rotates the cage 16 around the center axis 14. ing. In the illustrated embodiment, this cage drive source is provided by a drive row 2 that engages the outer peripheral surface of the cage 16.
16a and 4C are connected so that the cage 16 is rotationally driven around the central axis 14 via this drive roller 16at. The plurality of bobbins 18 are connected to the cage 16
During the rotation of the cage 16, the cage 16 rotates around its own axis to feed out the wire rods (cable cores), and the wire rods are collected in twisted valleys by the rotation of the cage 16.

The twisting device 10 includes one bobbin drive source 22 that drives a plurality of bobbins 18 in the twisting direction around the central axis 14, and a transmission means arm that transmits rotational force from this bobbin drive source n to each bobbin 18. Contains.

In the embodiment shown in FIG. 1, the bobbin drive source 22 is a variable speed motor 22B whose phase is controlled by a thyristor 22A.
It consists of Incidentally, reference numeral 22C is a rotational speed detector which detects the speed of the motor 22B and controls the thyristor 22At so that this speed is constant 1rc. As shown in FIGS. 1 and 3, the transmission means 24 is connected to the central axis 1.
The central axis of the cage 16 rotating around 4 (not shown)
An intermediate gear 24A rotatably supported by the intermediate gear 24A and a plurality of drive gears 2 that mesh with each other in sequence so that the intermediate gear 24A is fully driven.
4B and intermediate gear 24 are driven sequentially from A to each bobbin 1
8't- A plurality of sets of driven gears 24C rotate around the central axis 14 (see FIG. 3). Therefore, when the bobbin drive source 22 rotates, the Each bobbin is rotated once around the central axis 14 in a direction opposite to the direction of rotation of the cable, as shown by the full arrow, to give the wire a twist.

The twisting device 10 of the present invention further includes a cage rotation speed detector 26 for detecting the rotation speed of the cage 16, and a bobbin rotation speed net' setting for the cage rotation speed 111 detected by the cage rotation speed detector. The bobbin driving source n is driven by a command from the bobbin rotation speed variable setting means. 1st
In the embodiment shown in the figure, the bobbin rotation speed variable setting means consists of a partial pressure 6 that divides the output of the cage rotation speed detection device, and the output of this partial pressure is used for phase control of the bobbin drive source n. Thyristor 22 A K is supplied to motor 22 B with a phase proportional to the partial voltage output? Drive.

Therefore, the twisting ratio of the cable is determined by the dividing ratio (set value) of this voltage divider (supply), and since this dividing pressure ratio is expressed as n*/n11, the twisting ratio P is P = (1--) x 100. By setting the voltage divider values in this manner, the twist rate of the cable can be adjusted steplessly.

FIG. 2 shows another embodiment of the invention, in which the same parts are designated by the same reference numerals. In this embodiment, the bobbin rotation speed variable setting means digitally outputs a starting preset counter 32 that counts the digital output of the cage rotation speed detector 21 that detects the cage rotation deposit, and a digital signal that indicates the rotation speed of the bobbin drive motor, which is a constant speed motor. It consists of a bobbin rotation speed detector and a stop preset counter that counts the digital signal from the bobbin rotation speed detector. A start switch and a stop switch made of semiconductor switches are connected in series to the bobbin drive source. When the preset counters 32 and 36 reach their set values, full output is generated and the start switch and stop switch 4o are activated. Therefore, by appropriately setting the count values of the preset counters 32 and 36, the bobbin drive source 22 can be intermittently rotated during the cage 160 rotation to provide twisting, and this twisting angle is determined by the preset counters. It can be varied by setting values 32 and 36.

According to the present invention, as described above, 1. Since the rotation speed of the bobbin in the twisting direction can be varied by setting the bobbin rotation speed variable setting means, the optimum twisting ratio can be given depending on the wire material to be twisted. Moreover, since there is no need to change the gears of the transmission means, work efficiency can be improved.

[Brief explanation of the drawing]

1 and 2 are schematic diagrams of different embodiments of the twisting device of the twisting machine according to the present invention, and FIG. 3 is a side view of the transmission means. 10...Twisting device, Le...Twisting machine, 1
4...Central axis line, 16...Cage%
Bobbin for edict, addition...cage drive source, 4.
...Bobbin drive source, 22A...Thyristor, 22B...Variable speed solutor, 24...
・Transmission means, 26...Cage rotation speed detector, Fuki...Bobbin rotation speed variable setting means, Chrysanthemum...
・Voltage divider, 32nd...Start preset counter, A...Bobbin rotation speed detector, O...Stop preset counter, A...Start switch,
40...Stop switch.

Claims (1)

[Scope of Claims] (A cage that rotates in one direction of its central axis; 21i number of bobbins attached to said cage so as to rotate by 19 degrees between its own l1II?tM and said central thin wire; Cage round rotation wJ that rotates the cage around one of the center @ lines
A main gear provided coaxially with the center thin wire and a main gear disposed coaxially with the center thin wire and the cage so as to mesh with the gear. The main gear is rotatably supported by the hobbin and is connected to the hobbin. In the twisting device, which rotates each bobbin ten thousand times around the central axis while revolving, the main gear is driven to rotate through the gears 1jJJ+. A twisting device for a twisting machine, which is characterized by a bobbin drive source connection. ψ) Consisting of a cage rotation speed detector for detecting the rotation speed of the cage, and a bobbin rotation speed variable setting means for setting the bobbin rotation speed relative to the cage rotation speed detected by the cage rotation speed detector. The twisting device for a twisting machine according to claim 1, wherein the bobbin drive source is driven by the bobbin rotation speed variable setting means. (3) The bobbin driving source is a variable speed motor, the bobbin rotation speed variable setting means is a voltage divider that divides the output of the cage rotation speed detector, and the variable speed motor is configured to adjust the voltage to the output of the voltage divider. A twisting device of a twisting machine according to claim 2, which is driven at a proportional speed. (4) The bobbin rotation speed variable setting means includes a start preset counter that counts the digital output of the cage rotation speed detector, a bobbin rotation speed detector that detects the rotation speed of the bobbin drive source using a digital signal, and the bobbin rotation speed variable setting means. and a stop preset counter that counts a digital signal from a rotation speed detector, the bobbin drive source having switch means that starts with a set output of the start preset counter and stops with a set output of the stop reset counter. A twisting device for a twisting machine according to claim 2.