JP2822685B2 - Stranded wire machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stranded wire machine for manufacturing a cable or an electric wire by twisting a plurality of wire materials.

[0002]

2. Description of the Related Art As shown in FIG. 4, a stranded wire obtained by alternately inverting a plurality of wire members W with a predetermined inverting pitch P and twisting them is used for a cable or an electric wire. In such a stranded wire, if the wire is cut where the twisting direction changes in the opposite direction, even if the wire is connected again, the direction of the wire material W is the same, so that the bent portion is easily pulled out and bonded. Can be.

As shown in FIG. 5, a stranded wire machine for producing a stranded wire as described above is provided with a fixed mesh plate 1 having a plurality of filaments W penetrated and a fixed distance from the fixed mesh plate 1. And a rotatable supporting plate 2 rotatably supported, a die 3 for tightening the stranded wire material W twisted by the two eye plates 1 and 2, a take-up device 4 for pulling the stranded wire material W, 2 and a DC motor 5 for driving the take-off device 4.

The driving force of the motor 5 is transmitted from one line shaft 6 to the take-off device 4 via a bevel gear 7, and from the same line shaft 6 via a continuously variable transmission 8, a crank 9 and a gear 10. It is also transmitted to the rotating eyeboard 2.
The rotating motion is converted by the crank 9 into a oscillating motion, and the turning plate 2 is inverted.

The reverse pitch of the stranded wire is set by adjusting the rotation speed of the rotary plate 2 by the continuously variable transmission 8, and the inclination angle of the wire material W, that is, the reverse angle of the rotary plate 2, is It is set by changing the length of the lever of the crank 9.

[0006] In the figure, reference numeral 11 denotes a rough winding device driven through the line shaft 6, which untwists the wire material W.
Press and wind with thread, tape, etc. Numeral 12 denotes a vertical attachment device, which covers the outer periphery of the wire material W wound and pressed.
It is something to make .

[0007]

In THE INVENTION It is an object of the conventional twisted wire machine, when setting the inversion pitch, continuously variable transmission 8 can not operate unless a machine operation state, the take-up device 4 during this operation is driven There is a problem that the wire material W is pulled and a loss of the wire material W corresponding to the take-off length required for setting the pitch occurs.

In order to solve this, the continuously variable transmission 8
A clutch for disjunction between the input shaft and the output shaft of variable settings
For this purpose, a motor for rotating the input shaft of the continuously variable transmission 8 is required. Therefore, the structure of the continuously variable transmission 8 becomes complicated.

In addition, since the continuously variable transmission 8 has insufficient reproducibility, it is not possible to obtain a more reliable reversing pitch, and it is necessary to confirm the reversing pitch after the operation.

When setting the reversal angle, the crank 9
Since the length adjustment of the lever is manually performed, there is a problem that it is difficult to adjust the length.

SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a twisting machine capable of easily changing the twist pitch and the twist angle of a twisted wire.

[0012]

According to the present invention, as shown in FIGS. 1 and 2, a plurality of filaments W are inverted by a predetermined inversion pitch P to give alternate twists in the opposite direction. A twisting device 15, a pulling device 4 for pulling the twisted wire material W, a twist driving device 16 for rotating the twisting device 15 forward and reverse by a predetermined angle, and a separate twist driving device 16. Line driving device 1 that drives the take-off device 4 with a driving system of
7 and a twist control device 18 for controlling the drive of the twist driving device 16 in accordance with the linear speed pulled by the take-off device 4. The twist control device 18 is provided with a reverse pitch of the wire material W. an inversion pitch setting means 19 for setting a, the input set
Reversal angle setting means 20 for setting the reversal timing and shift timing of the twist driving device 16 based on the fixed angle, and the twisting corresponding to the linear velocity based on the output from the reversal pitch setting means 19 and the reversal angle setting means 20. to determine the rotational speed and rotational direction of the drive device 16 is made to have a driving means 21 for driving the twisted drive device 16, the rate of increase or decrease of the rotational speed of the front and rear in the twisted drive 16 of the inversion timing relative
The gears are shifted at the gear shift timing so as to be smaller in size.

[0013]

In the above means for solving the problems, when the reversing pitch and the set angle of the wire material W are inputted according to the type of the stranded wire to be manufactured, the reversing pitch setting means 19 sets the twist driving device 16.
Is set to the rotation speed for the linear velocity. The reversal angle setting means 20 sets the reversal timing and the shift timing.

Then, by driving the line driving device 17, the take-off device 4 is driven to pull the filament material W. At this time, the number of rotations according to the linear velocity is determined by the driving means 21 and the twist driving device 16 is driven.

Then, the twisting device 15 rotates to one side,
The filament W is inclined from the state parallel to the longitudinal direction and twisted.

When the set shift timing is reached during the twisting, the rotational speed of the twisting drive device 16 is reduced so as to decrease at a small rate, and when the twisting drive device 16 rotates to the set reversal timing, The rotation direction is reversed, the rotation speed increases at a small rate, and the rotation speed increases at a large rate beyond the shift timing. The line material W is inclined in the opposite direction, the inclination of the line material W gradually decreases, and the line material W becomes parallel to the longitudinal direction. The length of the stranded wire up to this point is the inverted pitch P.

Further, the rotation of the twisting device 15 causes the filament W to be twisted with the inclination being reversed.

[0018]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a control block diagram of the twisting machine of the present invention, and FIG.
FIG. 3 is a perspective view of a twisting device and a twist driving device, and FIG. 3 is a diagram illustrating a change in a reversing operation of the twisting device. The same components as those in the related art are denoted by the same reference numerals.

The twisting machine of this embodiment is a twisting device 15 for inverting a plurality of wire materials W with a fixed pitch and alternately twisting them in the opposite direction, and pulls the twisted wire material W. A take-off device 4, a twist drive device 16 for rotating the twist device 15 forward and reverse by a predetermined angle, and a line drive device 17 for driving the take device 4 by a drive system different from the twist drive device 16. And a twist control device 18 that controls the driving of the twist driving device 16 in accordance with the linear velocity pulled by the take-off device 4.

Then, the twist control device 18 includes a wire material W
An inversion pitch setting means 19 for setting the inversion pitch, ON
Reversal angle setting means 20 for setting the reversal timing and shift timing of the twisting drive device 16 based on the input set angle, and according to the linear velocity based on the output from the reversal pitch setting means 19 and the reversal angle setting means 20. Twist drive 1
6 to determine the rotation speed and rotation direction of the twist driving device 1
6 for driving the motor 6.

As shown in FIG. 2, the twisting device 15 includes a fixed mesh plate 1 having a plurality of holes 1a through which a wire material W penetrates, and an equal number of wires arranged opposite to the fixed mesh plate 1. Hole 2a for strip material penetration
And a die 3 for tightening the twisted filament W. The rotary eye plate 2 is attached to a cylindrical rotary body 23 on which a driven gear 22 is fitted. I have.

The twist driving device 16 includes an AC servomotor 24, a driving pulley 25 attached to a motor shaft 24a of the motor 24, and a driven pulley 27 connected to the driving pulley 25 via a belt 26. , The driven pulley 27
And a driving gear 28 externally fitted to the pulley shaft 27a of the driving gear 22. The driving gear 28 is connected to the driven gear 22 via an intermediate gear 29.

The pulley shaft 27a is provided with a rotation sensor PG1 for detecting the rotation speed of the servo motor 24 via a rotation detection pulley 30.

The take-off device 4 includes a pair of capstans 3.
The line driving device 17 comprises an AC motor 32 of an inverter control type, a driving pulley 33 attached to a motor shaft 32a of the motor 32, and a driving pulley 33 connected to the driving pulley 33 via a belt 34. Driven pulley 35 and a line shaft 36 attached to the driven pulley 35.

A drive shaft 38 is connected to the line shaft 36 via a pair of bevel gears 37 in a direction orthogonal to the drive shaft 38. A small gear 39 meshed between the two capstans 31a, 31b is attached to the drive shaft 38. The driving force of the motor 32 is transmitted to both the capstans 31a and 31b.

A rotation sensor PG2 for detecting the number of rotations of the motor 32 via a rotation detection pulley 40 is provided on the motor shaft 32a.

The inversion pitch setting means 19 of the twisting control device 18 converts the input from the digital switch into the sequencer 4
1 and a servo motor 24 corresponding to the linear velocity pulled by the take-off device 4 obtained from the rotation sensor PG2.
Are set.

The rotation ratio for setting the number of rotations per hour of the servo motor 24 is such that the rotation ratio A increases or decreases at the rate of the inclination θ ₁ and the inclination θ ₂ (θ ₁ > θ).
₂ ) The rotation ratio B that increases or decreases at the rate of
The rotation ratio B is selected before and after inversion.
By doing so, the rotational angular velocity of the rotatable plate 2 is reduced, and the tension is not applied to the wire W too much.

The inversion angle setting means 20 reads the input from the digital switch into the sequencer 42 and sets the inversion timing and the shift timing of the servo motor 24. And four counters A to D43
a to 43d are set with respective timings, and the counters A, C43a and 43c are used to determine the shift timing during rotation,
The counters B, D43b and 43d have reversal timings when reversing the rotation direction of the servo motor 24 from one side to the other side or from the other side to one side.

The drive means 21 outputs the detection values from the rotation sensor PG1 of the servo motor 24 to the counters A and C43.
a, a rotation ratio selection unit 45 for selecting one of the rotation ratios A and B depending on whether or not the set value of the rotation ratio has been reached, and the rotation of the motor 32 with respect to the rotation ratio selected by the rotation ratio selection unit 45. A rotation speed determination unit 46 that determines the rotation speed of the servo motor 24 according to the linear speed obtained from the sensor PG2.
And a motor drive unit 47 for driving the servo motor 24 while feeding back the servo motor 24 using the rotation sensor PG1 based on the output from the rotation speed determination unit 46.

The rotation speed determining section 46 includes a thinning circuit 48 for obtaining the rotation speed of the servo motor 24 from the rotation speed of the motor 32 and the selected rotation ratio so that the set reverse pitch is obtained, and counters B and D43b. , 43d, a rotation direction determining unit 49 for determining the rotation direction of the servo motor 24, and an inversion unit 50 for determining the rotation direction of the servo motor 24 based on the determination result of the rotation direction determination unit 49.
Consists of

The other configuration of the twisting machine is the same as that of the conventional one.

In the above configuration, first, a reversing pitch and a set angle of the wire material W corresponding to the type of the stranded wire to be manufactured are inputted .

When a desired inversion pitch is inputted by a digital switch, the rotation ratios A and B are set by the inversion pitch setting means 19. When a desired set angle is input by a digital switch, the inversion angle setting means 20 sets the inversion timing and the shift timing. For example, the counter A43a has +100 and the counter B43b has
Is set to +150, the counter C43c is set to -100, and the counter D43d is set to -150.

The motor 32 of the line driving device 17
By driving the servo motor 24 of the twist driving device 16, the take-off device 4 is driven and the wire W is pulled. At this time, the rotation ratio A is selected by the rotation ratio selection unit 45, and the servo motor 24 is selected by the rotation speed determination unit 46.
Is determined, and the servo motor 24 is driven by the motor drive unit 47.

Then, the rotatable plate 2 rotates to one side, and the filament W is twisted. And servo motor 2
The rotation of No. 4 is detected by the rotation sensor PG1, and the count is incremented. When the count reaches +100 set in the counter A 43a, the rotation ratio B is selected by the rotation ratio selection unit 45, and the rotation speed of the servo motor 24 is changed by the rotation speed determination unit 46 so that the rotation speed becomes slow. It is shifted.

Then, the turning plate 2 is rotated up to the set inversion angle.
There rotates, reaches the count is set in the counter B43b +150.

The servo motor 24 is controlled by the rotation speed determining unit 46.
Is determined to reverse the rotation direction of the servo motor 2
In No. 4, the rotation direction is reversed without changing the rotation speed.

Then, the count is decremented, and +1
When it is reduced to 00, the servo motor 24 is shifted so that the number of rotations is determined by the rotation ratio A.

At this time, the inclination of the linear material W gradually increases until the count becomes 0 after inversion,
When it becomes negative, the slope gradually decreases.

When the count reaches -100 set in the counter C43c, the servo motor 24 is shifted again. When the count becomes -150, the rotation direction is reversed, and the filament W becomes parallel to the longitudinal direction. Further, as the twisting device 15 rotates, the twisting direction is reversed and the twisting is similarly performed.

Therefore, the reverse pitch and the set angle must be entered.
The rotation speed and the rotation direction of the servo motor 24 of the twist driving device 16 are automatically determined only by applying force, so that the shape of the twisted wire can be changed by a simple operation.

Therefore, it is not necessary to operate the continuously variable transmission while operating as in the prior art, and it is possible to prevent the loss of the filament material W during shifting. In addition, the rotating eyeboard 2
When the reversal angle is set, it is only necessary to set the counter, as compared to manually adjusting the length of the lever of the crank.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention.

[0045]

As is apparent from the above description, according to the present invention, in order to drive and control the twist driving device of the twisting device in accordance with the linear speed pulled by the pulling device, the reverse pitch of the wire material is adjusted. Reversing pitch setting means for setting, reversing angle setting means for setting reversal timing and shift timing of the twist driving device based on the input setting angle, reversing pitch setting means and reversing angle setting means. There is provided a driving means for driving the twist driving device by determining the rotation speed and the rotation direction of the twist driving device according to the linear speed based on the output, so that only the reversing pitch and the set angle are input . The rotation speed and the rotation direction of the twist driving device are automatically determined and drive-controlled, and the shape of the stranded wire can be changed by a simple operation.

In addition, before and after the speed change, the speed is changed so that the rate of increase or decrease of the rotation speed is small at the time of reversing. Therefore, when the twist driving device is suddenly stopped and reversed, the tension applied to the wire material is reduced. Can be reduced, and disconnection can be prevented.

Therefore, it is not necessary to operate the continuously variable transmission while operating as in the prior art, and it is possible to prevent the loss of the filament material during gear shifting. Also, when setting the inversion angle of the twisting device, it is only necessary to set the counter as compared with manually adjusting the length of the crank lever, so that it is possible to adjust the mark. It has an excellent effect.

[Brief description of the drawings]

FIG. 1 is a control block diagram of a twisting machine according to the present invention.

FIG. 2 is a perspective view of a twisting device and a twist driving device.

FIG. 3 is a diagram showing a change in a reversing operation of the twisting device.

FIG. 4 is a front view of a stranded wire.

FIG. 5 is a schematic view of a conventional twisting machine.

[Explanation of symbols]

 Reference Signs List 4 take-off device 15 twist device 16 twist drive device 17 line drive device 18 twist control device 19 reverse pitch setting means 20 reverse angle setting means 21 drive means W wire material

Claims (1)

(57) [Claims] 1. A twisting device for inverting a plurality of filaments with a predetermined reversing pitch to alternately twist in the opposite direction, a pulling device for pulling the twisted filaments, and a twisting device. A twist driving device that rotates forward and backward by a predetermined angle, a line drive device that drives the take-up device by a drive system different from the twist drive device, and a twist drive device that drives the twist device in accordance with the linear speed pulled by the take-up device. A twist control device for controlling the driving of the joint drive device, the twist control device comprising: a reverse pitch setting means for setting a reverse pitch of the wire; and a twist driving device based on the input set angle. Angle setting means for setting the reversal timing and shift timing of the motor, and the rotation speed and the rotation direction of the twist driving device corresponding to the linear speed are determined based on the output from the reversal pitch setting means and the reversal angle setting means, and the twist is performed. Drive the combined drive Drive means, and before and after the reversal timing, the speed is changed at the shift timing so that the rate of increase or decrease of the rotational speed of the twist driving device becomes relatively small. A stranded wire machine characterized by the following.