JPS58126386A - Braking of supply core in gathering twisting method - 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 an improved braking method for supply cores in a collective twisting method for twisting a plurality of supply cores.

When twisting a plurality of supply cores through a collective twisting device, a holding roller equipped with a powder brake is placed between the supply side and the winding side, and each supply core is loaded onto the same roller. , there is one in which each core is led out to the winding side.

In such a case, each supply core is braked by a holding roller equipped with a powder brake, which prevents hunting on the winding side and eliminates the disordered twist of each supply core. Powder braking is applied to each supply core through the current control, and when setting the back tension according to the size of the supply core, the powder brake is adjusted by controlling the current.

In other words, the powder brake is adjusted, thereby determining the braking force of the restraining roller, and applying bank tension to the supply core via the restraining roller.

However, when assembling and twisting each supply core as described in Section 2, even when each device and device is operated, the specified operating state cannot be reached immediately due to mechanical loss, and therefore, at the start of operation, each supply core The supply core is subjected to tension not only due to the mechanical losses mentioned above, but also to the supply core, which causes its conductors to be stretched, resulting in poor conductor resistance, poor twisting pitch, and
Problems such as a defective outer diameter had occurred.

Of course, if the bank tension by the holding roller is released at this point, the above-mentioned hunting will occur.

The present invention improves the braking method using suppressor rollers in order to eliminate the influence of mechanical loss that occurs at the start of operation in this type of collective twisting method, and thereby prevents defective twisting of supply cores from the start of operation. That is.

Hereinafter, a specific example of the method of the present invention will be explained with reference to the illustrated example of Inumiichi. In Figs. 1 and 2, when a plurality of supply cores are collectively twisted to make a stranded wire, the From the feeding device (11) to the collecting and twisting device on the winding side (
Multiple books for 2)? Fly core +3+ +3J
+31... is supplied, but at this time, each supply core +31 (31+3)... is
Brake device located between Il+21+41):i:
It will enter the collective twisting device (2) via the cable.

Therefore, each supply core +31 +31 +31... supplied from the supply device t11 in the above is braked via the introduction roller (5).
(41), and within the brake device (4),
Each supply core +3+ +3+ +a is attached to the outer periphery of the holding roller (7) attached to the pressing body (6) such as a pinch roller.
＋・・・75E times! I can be killed.

Each supply core after the above reloading +31 +31 [31・
. . ., it enters the collective twisting device (4) via the next stage guide roller (8) and the guide roller on the batten side (
9) and through each through hole of the batten Ol, and then each sub 7 (core +31 +31 +31...) is twisted through a known special twisting die O1, and the stranded wire αυ
becomes.

Furthermore, the twisted yarn 1lJaυ is taken up by a take-up machine II3 and wound up by a winding device a3.

Combine multiple supply cores +31 +31 +31
When collectively twisting..., each supply core +3+
[31+3)... is the pulling force by the pulling machine a4,
The braking force (smaller than the pulling force) of the holding roller (6) that opposes this acts, and therefore the holding roller (6) acts against this.
-2 (6) and the receiving machine port 3, each supply core +31
Hunting of ... is prevented.

Of course, each supply core +3) [31+31...
...The tension of the nika is set via the restrainer row 2 (6) according to its size, but since the mechanical loss already pointed out occurs at the start of the operation for collective twisting, each supply core f31 +31 +31...
A tension greater than that set by the erotic roller (6) is applied to the roller.

Therefore, in the method of the present invention, at the start of the operation, the damage suppressing roller (6) is supplied to the supply core f31 for a predetermined period of time.
+31... is driven and rotated in the feed direction, thereby preventing unwanted tension due to mechanical loss from acting on the supply core [31+31 +31...].

To explain this point below, in FIG. 1 mentioned above, the powder clutch (
A brake 051 consisting of a slip clutch) is installed, and a drive device o8 consisting of a motor 061 and a reduction gear ση is connected to the brake 051.

In the above, the brake [+5
1 has a configuration in which braking force (or transmission force) is changed by current control as is known, and the restraining roller (7) exerts a braking force (or transmission force) determined by this brake a1.

On the other hand, the driving device signal is turned ON at the same time as the collective twisting device (2) is started, and is turned OFF by a timer (not shown) after a predetermined time has elapsed.・ Therefore, each supply core mentioned above +31 +3+ +
At the start of operation when collectively twisting 3+ -, drive device o8
1 is turned on, the suppressor o -2 (71 rotates in the feed direction of the supply core f31 +3+ [31...], and as a result, mechanical loss due to mechanical loss at the start of the operation occurs. Unwanted tension in each supply core +3) [31 [31-...] will be eliminated.

In other words, at the start of operation, the clutch acts on the brake 05.
When the rotation of the drive device θ rice grains is transmitted to the restraining rollers (7) through 1, each supply core (31+31 +3+...
・The braking force of the four rollers (7) that apply back tension to the supply cores (7) becomes smaller than that at normal times, and the back tension is relaxed by the amount of tension caused by the mechanical loss, so at the start of the operation, each supply core (3+ [
31+3+... will no longer be weighted with unwanted ten/con.

Of course, the rotational force transmitted from the drive device Q& to the holding roller (7) can be achieved by controlling the current of the brake aω as described above.

After the start of operation (about 25 seconds have elapsed), when normal operation with no mechanical loss occurs, the timer turns off the drive unit, and power transmission from the unit A mark to the restraining roller (7) stops. In this state, the brake a1 is subject to the load of the drive device a in the stopped state (motor (161 and reducer a71)), so the brake t151 is originally intended to apply a predetermined braking force to the holding roller (7). This will provide a braking effect.

The braking force of this play kilometer is set to a predetermined value by current control as described above, and after the normal operation described above, the holding roller (7) applies the braking force determined by the brake (151) to each supply. Core F31 +3
+ A constant back tension is always applied to [31...1.

Note that in the above embodiment, a drive device consisting of a motor (161) and a reducer aη was used, but in the case of a geared motor or a torque motor, the brake Q5 also serves as a brake.
1 can be omitted.

In addition, a brake 051 is attached to one end of the shaft α4 of the holding roller (7), and a drive device 08 is connected to the brake (15). It may be attached separately.

In this case, the brake a attached to one end of the shaft Q41 can be replaced with a powder clutch and a powder brake (slip brake whose braking force can be adjusted by current control), while the other end of the shaft Q41 can be equipped with a timer l. Any motor that operates for a predetermined period of time is connected as the drive device a.

Furthermore, when connecting the drive device α mark to the other end of the shaft circle, an electromagnetic clutch/mechanical clutch which is operated by a timer may be interposed, and in the event of a clutch failure, the timer for the drive device can be omitted.

As explained above, in the present invention, when twisting a plurality of supply cores together through a collective twisting device, after the supply cores supplied from the supply side of the collective twisting device are transferred to the restraining roller for normal operation, In the method of leading out these supply cores to the winding side of the collective twisting device, at the start of operation when collectively twisting each supply core, the above-mentioned holding roller is driven to rotate in the feed direction of the supply cores to control the roller. The feature is that the power is reduced to the normal state, V is also small, and then the drive of the restraining roller is stopped and the braking force of the roller is switched to the normal state. As a result, each supply core can be twisted without elongation of the conductor or disturbance of pitch, resulting in a twisted product with stable quality from the beginning. becomes 0

[Brief explanation of the drawing]

1 and 2 are a schematic plan view and a schematic front view showing one embodiment of the method of the present invention together with its apparatus. (1)... Supply device (2)... Collective twisting device (3)... Supply core (4)... Brake device (7)... Pressing roller Q3]... Winding device 051-11 Brake 061Φ... Motor Q71... Speed reducer... Drive device

Claims (1)

[Claims] When twisting a plurality of supply cores together through a collective twisting device, each supply core supplied from the supply side of the collective twisting device is transferred to a holding roller for normal operation, and then these supply cores are collectively twisted. In the method of leading to the winding side of the device, at the start of operation when collecting and twisting each supply core, the above-mentioned holding roller is driven and rotated in the feeding direction of the supply core to increase the braking force of the roller to a level higher than the normal state. A method for braking a supply core in a collective twisting method, characterized in that the braking force of the holding roller is changed to a normal state by stopping the drive of the holding roller.