JPH08180753A - Wire stranding machine - Google Patents

Abstract

PURPOSE: To alter the tensile force to the optimum corresponding to the alteration of the speed by providing a control part to control a pinch roll drive motor based on a wire speed signal and a tensile force signal from a detection means attached to a tension roller. CONSTITUTION: An intermediate wire stranding machine 104 and a winding machine 107 start drive together with a ring motor 101B and pinch roll motor 41 under the control of a control part 3 by turning on a switch. A ring 101 and pinch rolls rotate and element wires 102 which are wound on a bobbin 101A is pulled out toward the winding machine 107 while the tensile force of the element wires 102 being adjusted to be constant by a tension roller 103 in the middle and also the relative positions of the element wires being adjusted respectively by the wire stranding machine 104. In the case tensile force alters in the degree which the tension roller 103 can not deal with, a control part 3 controls the motors 101B and 41 based on the detection signals from a tensile force detecting manes 1 and a wire speed detecting means 2 and thus the optimum tensile force can be applied to the element wires.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a twisting machine for twisting a plurality of strands together to form a single strand.

[0002]

2. Description of the Related Art As this twisting machine, for example, one shown in FIG. 2 is known. That is, the twisting machine is
A back tension device is provided after a dancer 103 applies a predetermined tension to each of the strands 102 sent from a plurality of supply bobbins 101A provided in No. 0, and an intermediate twisting machine 104 adjusts the relative positions of the strands 102. At 105, an appropriate tension is applied to the strands 102 to stabilize the final tension of each strand 102, and then the winder 107 twists the strands 102 that have passed through the back tension device 105. The twisted wire 106 is formed and wound on a winding bobbin (not shown).

[0003]

This twisting machine is designed to feed the wire at a predetermined constant speed suitable for performing the twisting work. However, if the feeding speed changes for some reason, There is also. However, in such a twisting machine, the dancer previously applies a constant and optimum tension in accordance with a constant feed rate, so if the feed rate changes, the tension will match the feed rate well. Without,
Various inconveniences such as disordered twisting and disordered star cuts may occur.

In view of the above-mentioned circumstances, the present invention has an object to provide a twisting machine capable of appropriately changing the tension to an optimum value in accordance with the change in the feed rate even if the feed rate is changed. It is what

[0005]

That is, the present invention provides a pinch roll that draws out the strands from a plurality of supply bobbins around which the strands are wound, and a pinch roll provided downstream of the pinch rolls in the strand transport direction. And a back tension device that finally stabilizes the tension provided on the downstream side of the dancer in the conveying direction of the strands, and the plurality of strands are collectively twisted together. A twisting machine for forming a twisted wire, wherein one pulley of a pair of pulleys constituting the dancer is movably disposed, and a tension detecting means for detecting a tension applied by the dancer is provided, A linear velocity detecting means for detecting a traveling speed of a wire passing through the back tension device is provided, and both a linear velocity signal output from the linear velocity detecting means and a tension signal output from the tension detecting means are input. , Controls the pinch roll driving motor, in which a control unit for changing the tension in accordance with the traveling speed of the wire.

[0006]

According to the present invention, the linear velocity changes in the control unit which receives both the tension signal detected and output by the tension detecting means attached to the dancer and the linear velocity signal detected and output by the linear velocity detecting means. If this is detected, the appropriate control signal corresponding to the linear velocity is output to the pinch roll, and the traveling speed of the strand on the pinch roll is appropriately adjusted with respect to the linear velocity when passing through the back tension device, As a result, the tension can be controlled according to the linear velocity and the optimum tension can be applied.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. In this embodiment, the same parts as those in the prior art will be designated by the same reference numerals to avoid redundant description.

FIG. 1 is a schematic diagram showing a twisting machine according to the present invention. In this twisting machine, tension detecting means 1 is attached to the dancer 103, and the back tension device 1
05 is provided with a linear velocity detecting means 2 and a control section 3. Since the winding diameter remaining amount of the wire 102 wound around the bobbin 101A is sequentially detected and a signal corresponding to the remaining amount is output to the bobbin 101A of the transmitter 100 of this embodiment, A winding diameter detector 5 is attached.

The tension detecting means 1 is for detecting the tension applied by the dancer 103. In this embodiment, a potentiometer is used and its output is connected to the input of the control section 3.

The linear velocity detecting means 2 detects the traveling velocity of the wire 102 passing through the back tension device 105. In this embodiment, a tacho-generator is used and its output is input to the control section 3. It is connected.

When the controller 3 receives both the linear velocity signal output from the linear velocity detecting means 1 and the tension signal output from the tension detecting means 2, the control portion 3 drives the driving motor 41 for the pinch roll 4 from these signals. It is controlled, that is, the tension of the wire 102 is changed to an optimum value according to the traveling speed of the wire 102. Further, the control unit 3 is configured to sequentially input the detection signal from the winding diameter detector 5, and the bobbin 101A receives the detection signal and the detection signal input from the linear velocity detecting means 2 described above. The rotational driving ring of the ring 101C for sequentially detecting the remaining amount of the wire 102 wound around, the traveling speed of the wire 102, and the like, and feeding the wire 102 wound around the bobbin 101A from the detected information. Motor 1
The operation of 01B is also properly controlled. That is, the controller 3 controls the bobbin 101A by the winding diameter detector 5.
The amount of winding of the bobbin 101A is detected, and the rotation of the ring is changed to an optimum state according to the amount of winding of the bobbin 101A (for example, when the winding amount is large, the ring rotation is slow, and when the winding amount is small, the ring rotation is fast). There is.

The drive motor 41 is connected to the output of the control unit 3, and is driven and rotated by the pinch roll 4 to synchronize with the traveling speed (linear velocity) of the wire 102 detected by the linear velocity detecting means 2. The proper feeding operation is performed.

The winding diameter detector 5 includes a wire 1 from the feeder 100.
This is for detecting the winding diameter of the wire 102 wound around the bobbin 101A, which gradually decreases as 02 is fed out, and is connected to the output of the control unit 3.

Therefore, according to this embodiment, when a switch (not shown) is turned on, the ring motor 101B and the pinch roll motor 41 are actuated by the control of the controller 3, and the intermediate twisting machine 104 and the winder 107 are operated. Will start. As a result, the ring 101C and the pinch roll 4 start rotating, and the wire 102 wound around the bobbin 101A becomes
While the tension is adjusted to be constant by the dancer 103 on the way, and the relative position of each of the strands 102 is adjusted individually by the intermediate twisting machine 104, it is fed toward the winder 107.

Now, as described above, the tension of the wire 102 is held constant to some extent by the dancer 103, but for some reason, the dancer 103 is kept.
It is assumed that a large tension fluctuation that cannot be completely repaired occurs.

In this case, the control unit 3 changes this tension by
The detection is performed by the detection signal from the tension detecting means 1 directly, or the linear velocity of the wire 102 varies with the variation of the tension, so that the control unit 3 outputs the variation of the linear velocity from the linear velocity detecting means 2. When detected by the signal, the control signal from the control unit 3 indicates the ring motor 101B and the pinch roll motor 41.
Is output to. Thereby, the feeding speed of the wire 102 is controlled and the rotation of the pinch roll 4 is appropriately controlled.

[0017]

As described above, according to the present invention, the tension signal detected and output by the tension detecting means attached to the dancer and the linear velocity detecting means attached to the back tension device detect and output. When the linear velocity of the wire changes, the control unit that receives both the linear velocity signal and the linear velocity signal outputs an appropriate control signal according to the linear velocity to the pinch roll and passes through the back tension device. The running speed of the wire on the pinch rolls upstream of this is adjusted with respect to the wire speed of the wire at the time of making the wire to match and match the running speed of the wire as it passes through each part. It is possible to apply the optimum tension by controlling the tension of the strand according to the linear velocity.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is an explanatory view showing a conventional example.

[Explanation of symbols]

 1 Tension detecting means 2 Linear velocity detecting means 3 Control part 4 Pinch roll 101A Supply bobbin 102 Elementary wire 103 Dancer 105 Back tension device

Claims (1)

[Claims] 1. A pinch roll (4) for pulling out the wire (102) from a plurality of supply bobbins (101A) around which each wire (102) is wound, and a wire conveying direction with respect to the pinch roll (4). (103) for adjusting the tension of the strands provided downstream of the dancer (103), and a back tension device for finally stabilizing the tension provided downstream of the dancer (103) in the transport direction of the strands (102) ( 105) and
A twisting machine for twisting a plurality of strands (102) together to form a single twisted wire, wherein one pulley of a pair of pulleys constituting the dancer (103) is movably disposed. The tension detecting means (1) for detecting the tension applied by the dancer (103) is provided, and the linear velocity detecting means (2) for detecting the traveling speed of the wire (102) passing through the back tension device (105). ) Is provided and both the linear velocity signal output from the linear velocity detecting means (2) and the tension signal output from the tension detecting means (1) are input, the pinch roll drive motor (41) is controlled. The twisting machine is provided with a control unit (3) that changes the tension according to the traveling speed of the wire (102).