JP2866580B2 - Winding device control method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a winding apparatus for winding a band made of, for example, resin, paper or the like into a predetermined length to produce a cloth.

[0002]

2. Description of the Related Art As is well known, a so-called winding device that winds a continuously fed belt-like material into a core material at predetermined lengths to produce a piece of fabric is known as a belt-like material. A main arm that has a first and a second pair of winding mechanisms for winding an object and that vertically rotates with a horizontal main shaft (hereinafter, this rotation is referred to as a “turret”); A first splicing unit that winds a predetermined length by a first wind-up mechanism, cuts the same, and then winds a strip that is subsequently fed to a second wind-up mechanism from a cut end, and a splice unit. And a dancer roll mechanism for replenishing the length of the strip which is insufficient in the event.

[0003] In controlling the winding device, a splice (cutting of the strip along with separation of the strip having already been wound and starting production of a new strip by winding the cut end) is performed. It is important how to increase the success rate.

In the conventional winding apparatus, the splicing speed is controlled by controlling the winding speed of the first winding mechanism by the following two methods to increase the success rate.

(1) The current value (torque) at the time of control of the dancer roll is held, and the winding speed of the first winding mechanism is memory-controlled based on the current value (torque). (2) The diameter and the number of revolutions of the cloth produced by the first winding mechanism are detected, and the winding speed of the first winding mechanism is arithmetically controlled.

[0006] However, the above-mentioned conventional control method of the winding device has the following problems. That is, in the above method (1), when the thickness of the band to be wound is large and the winding speed is high, the tension of the band between the winding mechanisms decreases with time, and the cutting failure occurs. There has been a very high probability that a problem such as a defective cut end surface or a defective winding will occur. Therefore, there is a limit in improving the production efficiency of cloth.

In the above method (2), the core material around which the band is wound is generally made of resin or paper, and the accuracy of the diameter cannot be expected. , The detection error sometimes becomes large. Therefore, according to the above-described arithmetic control based on the detection output, the tension of the strip at the time of cutting is naturally not stable, and similarly to the method of the above (1), problems such as cutting failure, cutting end face defect, or winding failure are caused. Is extremely high (this problem is particularly likely to occur when the thickness of the strip is small), and there is a limit to improving the production efficiency of the cloth.

SUMMARY OF THE INVENTION It is an object of the present invention to stabilize the tension of a strip at the time of cutting the strip, regardless of the winding speed, the thickness of the strip, or the precision of the diameter of the piece, thereby reducing the splice. It is an object of the present invention to provide a control method of a winding device that can increase the success rate and improve the production efficiency of cloth.

[0009]

According to the present invention, after a belt-shaped material continuously fed from a feeding mechanism is wound up by a predetermined length by a first winding means, the feeding mechanism and the first belt are wound. After the second take-up mechanism is interposed between the second take-up mechanism and the second take-up mechanism, the cut-off means is then used to cut the above-mentioned band-like material, and the subsequently fed band-like material is cut by the second take-up mechanism. In the control method of the winding device that winds up from the cut end, when the band is cut by the cutting unit, the tension of the band between the first and second winding mechanisms is detected by a tension detecting unit. In addition, the above object has been achieved by providing a control method of a winding device, wherein a winding speed of the first winding mechanism is controlled based on the detection output.

[0010]

In the control method of the winding device according to the present invention,
When the strip is cut by the cutting means, the first and second
The tension of the strip between the winding mechanisms is detected by the tension detecting means, and the winding speed of the first winding mechanism is controlled based on the detection output. The strip is reliably cut by the cutting means while the tension of the strip between the winding mechanisms is stable, and the cut end is reliably wound into the second winding mechanism.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a control method for a winding device according to the present invention will be described below in detail with reference to the accompanying drawings. FIG.
And FIG. 2 shows an automatic magnetic tape winding device (hereinafter, “winding device”) for implementing the control method of the winding device according to the present invention.
). In the drawing, reference numeral 1 denotes a winding device.

As shown in FIG. 1, the winding device 1 includes an apparatus main body 3 having a control unit 2 (see FIG. 2) described later, and a pair of winding mechanisms (first and second winding mechanisms). A) a main arm 8 provided with 4, 5 and a pair of tension detecting means 6, 7 and rotated by a turret motor 8a with a horizontal main shaft 8b (both shown in FIG. 2);
And a dancer roll mechanism 10 (see FIG. 2) for replenishing the length of the strip at the time of splicing.

The winding mechanisms 4 and 5 are provided at both ends of the main arm 8, respectively.
As shown in FIG. 2, take-up shafts 4a and 5a are provided in parallel to the horizontal main shaft 8b and rotatably, and drive motors 4b and 5b for driving these take-up shafts 4a and 5a to rotate.
And a configuration including: Note that clutches 4c and 5c are interposed between the drive motors 4b and 5b and the winding shafts 4a and 5a, respectively. The drive motors 4b, 5b are provided with rotation detectors 4d, 5d for outputting the number of rotations to the control unit 2 described later.

As shown in FIG. 1, the tension detecting means 6 and 7 are attached to the sub-arms 6a and 7a attached to the middle part in the longitudinal direction of the main arm 8 and to the distal ends of these sub-arms 6a and 7a. Cross rolls 6b, 7b are provided. Pickups 6c, 7c (see FIG. 2) for detecting the tension of the magnetic tape between the winding shafts 4a, 5a are provided on the cross rolls 6b, 7b. It is arranged. The sub-arms 6a and 7a are formed to be rotatable by a predetermined angle from the mounting base. Also, the sub arms 6a, 7
A branch arm 6d, 7d that branches at a predetermined angle with respect to the sub-arms 6a, 7a is disposed at an intermediate portion in the length direction of the arm a. Rolls 6e and 7e are attached.

The splice unit 9 is mainly composed of a club-shaped cutter arm 11 and a rider arm 12. Each of the arms 11, 12 is connected to one of the winding shafts 4a, 5a by a motor M. In the embodiment, it is configured to be rotatable so as to sandwich the right side in FIG. 1) from above and below.

A traverse type cutter 13 (cutting means) for cutting the magnetic tape T is provided on the cutter arm 11.
, A charging device 14, a press roll 15 and a guide roll 16 which are pressed against the surface of the magnetic tape roll R at the time of splicing. On the other hand, on the rider arm 12, the take-up touch roll 17 that presses down the magnetic tape T to be wound and enables good winding and the magnetic tape T fed through the dancer roll mechanism 10 are wound. Guide rolls 18 and 19 for guiding to any of the winding shafts 4a and 5a are provided. Note that the rider arm 12 rotates independently of the cutter arm 11, and
In addition to splicing, the magnetic tape roll wound up by the winding shafts 4a, 5a can be held down during the normal magnetic tape winding process.

As shown in FIG. 2, the dancer roll mechanism 10 includes one of the winding shafts 4a, 5a for winding between the feed line and the guide roll 19 of the rider arm 12. A dancer roll 20 that moves up and down based on the winding speed is provided.
Is controlled so as to replenish the length of the magnetic tape T accompanying the turret of the main arm 8 at the time of splicing. The dancer roll mechanism 10 is provided with a position detector 20a that outputs the position of the dancer roll 20 to the control unit 2 described later.

The control unit 2 of the winding device 1 includes a network unit 21 for referring to the speed of the feeding line for feeding the magnetic tape T to the winding device 1 and the winding shafts 4.
a, calculating units 22 and 23 for calculating the diameter of the magnetic tape (roll) wound by the winding shafts 4a and 5a;
The output from the rotation detectors 4d and 5d of the drive motor 5a, the output from the position detector 20a of the dancer roll 20, and the output from the pickups 6c and 7c are INPUT.
The CPU unit 27 includes regulators 24 and 25 to be driven and a regulator 26 that outputs a control output of the rotation angle of the main arm 8 to a drive motor. Although not shown in FIG.
The dancer roll 2 of the dancer roll mechanism 10
A unit for controlling the position of 0 based on the winding speed of the winding shafts 4a and 5a is also mounted.

A speed regulator 26a is interposed between the regulator 26 of the control section 2 and the turret motor 8a of the main arm 8, and a clutch 8c is provided between the turret motor 8a and the horizontal main shaft 8b. It is interposed. Current regulators 4e, 5e are interposed between the regulators 23, 24 and the drive motors 4b, 5b, respectively.

Next, the operation of the control method of the winding device 1 according to the present embodiment will be described with reference to FIGS. In the following description, for convenience, the winding shaft 4a of the winding mechanism 4 is referred to as the "old shaft 4".
a ", and the winding shaft 5a of the winding mechanism 5 will be described as a" new shaft 5a "(same in the drawing).

First, the end of the magnetic tape T fed from the feeding line (feeding mechanism) is fixed to the core material (C) attached to the old shaft 4a, and winding is started. And the old shaft 4a
The position of the dancer roll 20 is controlled by the winding speed of
When a predetermined winding speed (the winding amount of the magnetic tape of the old shaft 4a reaches a predetermined length) is reached, a switching signal for the old shaft 4a and the new shaft 5a is generated, and splicing is started. Up to this point,
The rider arm 12 of the splice unit 9 is
The surface of the magnetic tape T that is wound by the old shaft 4a is pressed from underneath (a) (see FIG. 3 (start) and FIG. 4).

Next, by rotating the sub arm 6a (clockwise in FIG. 5), the cross roll 6b is pressed against the surface of the magnetic tape roll R wound around the old shaft 4a, and the sub arm 7a is rotated. The cross roll 7b is moved backward (counterclockwise in FIG. 5), and the rider arm 12 is also moved backward to start the turret of the main arm 8. Here, the sub arm 7a is fixed at a fixed position so as to be substantially perpendicular to the main arm 8.
The clutch 5 between the new shaft 5a and the drive motor 5b
Then, the rotation speed of the new shaft 5a is increased to a predetermined value by connecting the rotation speed c. Then, while gradually reducing the speed of the turret,
The approach of the cutter unit 11 to the new shaft 4a is started.
Then, the turret is stopped to fix the positions of the old shaft 4a and the new shaft 5a, and the new shaft 5a is interposed between the old shaft 4a and the above-mentioned feed line (see FIGS. 3 to 5).

Further, the cutter arm 11 is lowered, the rider arm 12 is raised again, and these arms are arranged so as to sandwich the new shaft 5a.
To detect the pressurization (see FIGS. 3 to 6).

Next, the pickup 7 of the cross roll 7b
c, the tension of the magnetic tape T between the old shaft 4a and the new shaft 5a is detected. Based on the detected output, the rotational speed of the drive motor 4b of the old shaft 4a is feedback-controlled (tension control) and the dancer roll 20 is controlled. The current value (torque) at the time of the control is held, and the rotation speed of the drive motor 5b of the new shaft 5a is controlled based on the current value (memory control). Then, after the charging device 14 is operated, the cutter 13 is operated to start cutting the magnetic tape T. After the cutting of the magnetic tape T is completed, the old shaft 4a
Release the clutch 4c between the motor 4b and the old shaft 4a.
While stopping the rotation of the magnetic tape T while controlling the position of the dancer roll 20 by the rotation speed of the new shaft 5a.
Is stopped (see FIG. 3 (（) and FIG. 6).

Next, the cutter arm 11 is retracted from the new shaft 5a, and at the same time, the crimped cross roll is retracted, and the splice is completed (FIG. 3 (to the end)).
(See FIG. 7). Then, the produced magnetic tape roll R is removed from the old shaft 4a to obtain a target magnetic tape roll.

Further, when a predetermined amount of the magnetic tape T is wound on the new shaft 5a, the old shaft 4a is replaced with the new shaft 5a and the new shaft 5a in the splicing process.
Is spliced using the old shaft 4a as a new shaft 5a.
A magnetic tape roll is produced on the a side. After that, similarly,
By winding the magnetic tape for each winding shaft and performing the above-described splicing, a magnetic tape roll is efficiently produced from the continuously fed magnetic tape.

As described above, according to the control method of the winding device 1 according to the present embodiment, when the magnetic tape T is cut by the cutter 13 at the time of splicing, the magnetic tape between the old shaft 4a and the new shaft 5a is cut. The tension of the magnetic tape T between the old shaft 4a and the new shaft 5a is stabilized by controlling the rotation speed of the old shaft 4a based on the detection output while detecting the tension of T by the pickup 6b of the cross roll 6a. Because of this, regardless of the winding speed and thickness of the magnetic tape or the accuracy of the diameter of the roll (or the core material), good cutting and winding of the cut end can be performed. Therefore, the success rate of splicing can be increased as compared with the related art, and the production efficiency of the magnetic tape roll can be improved.

The method for controlling the winding device according to the present invention is not limited to the method using the winding device 1, and the method for controlling the cutter arm 11 of the winding device 1 is not limited thereto.
3 can be appropriately changed to a so-called guillotine-type or rotary-type cutting method according to the material of the strip to be cut or the like.
Of course, an effect can be obtained.

Also, the above-mentioned belt-like material is not limited to the magnetic tape of the above-mentioned winding device 1, and can be favorably applied to a case where various films or papers are wound into a roll. In this case, it is needless to say that the same operation and effect as in the above embodiment can be obtained.

[0030]

According to the control method of the winding device according to the present invention, when the band is cut by the cutting means, the tension of the band between the first and second winding mechanisms is detected. At the same time, the winding speed of the first winding mechanism is controlled based on the detection output, so that the tension of the strip is stabilized at the time of cutting, and good cutting and winding of the cut end thereof are performed. It becomes possible. Therefore, regardless of the winding speed of the strip, the thickness of the strip, or the accuracy of the diameter of the piece, the success rate of the splice can be increased, and the production efficiency of the piece can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a winding device for implementing a control method of the winding device according to the present invention.

FIG. 2 is a block diagram showing an input / output relationship in a control unit of the winding device.

FIG. 3 is a flowchart showing a splicing process by the winding device.

FIG. 4 is a schematic view showing a splicing step by the winding device.

FIG. 5 is a schematic view showing a splicing step by the winding device.

FIG. 6 is a schematic view showing a splicing step by the winding device.

FIG. 7 is a schematic view showing a splicing step by the winding device.

FIG. 8 is a schematic view showing a splicing step by the winding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magnetic tape winding device (winding device) 4 1st winding mechanism 5 2nd winding mechanism 6, 7 Tension detecting means 13 Cutting means T Magnetic tape (belt-like material)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65H 23/18-23/198 B65H 19/00-19/30

Claims (1)

(57) [Claims] After a predetermined length of a belt-shaped material continuously fed from a feeding mechanism is wound by a first winding means, the belt-like material is moved between the feeding mechanism and the first winding mechanism. After the second winding mechanism is interposed, the strip is cut by the cutting means, and the subsequently fed strip is wound from the cut end by the second winding mechanism. In the control method of the take-up device, when the strip is cut by the cutting means, the tension of the strip between the first and second winding mechanisms is detected by tension detection means, and based on the detection output. A method for controlling a winding device, comprising controlling a winding speed of the first winding mechanism.