JPH02144360A - Method and device of winding beltform long substance - Google Patents

Abstract

PURPOSE:To perform simple setting of lateral movement of a roller by a method wherein on amount of displacement in an actual edge position of the one edge of a beltform substance in the upper stream position of a winding roller from a reference edge position is detected, and a function of the number of windings is added to the displacement amount to compute an adding result. CONSTITUTION:A computing amplifying circuit is contained in a control device 6 to feed an output from a detector 4 to detect the edge of a beltform substance 3 wound around a winding roller 1. An input signal is compared with a detecting signal from a position detector 11 of the winding roller 1 to compute a comparing result. A drive device 7 is controlled by a distance set to a value optimum to a lateral amount of the beltform substance 3 to move a support stand 2. Computation produces addition of a function of the number of windings to a displacement amount.

Description

[Detailed Description of the Invention] Industry! The present invention relates to a method and apparatus for controlling the winding of a long belt-like object such as a belt-like object 1, such as an m+i strip, or a synthetic resin sheet.

Conventionally, when roll paper is unwound and passed through various stations such as printing and then wound up, it is necessary to correct the lateral deviation (meandering) of the fed roll paper before winding it up. In order to correct the deviation, the fishing boat is equipped with a detector that detects the edge position (referred to as the edge position) of the strip, and the winding position is corrected based on the output signal of this detector. An example of this device is shown in the fourth example.
As shown in the figure, a support stand 2 that supports the S-taking roller l is attached so as to be able to move laterally, and a detector 4 for detecting the edge position of the strip 3 that is taken up once is fixed to a lever 5 extending from the support stand 2. When the detector 4 detects a shift in the position of the edge of the strip 3, the control device 6 which manually outputs the output signal controls the drive device 7 to move the support base 2 by the same amount in the same direction as the shift. Move horizontally.

The figure shows a rotational drive device 8 for the take-up roller 1. The fixed arrangement of rollers 9, 10 is also shown.

In addition, if you wind a plated steel plate or plastic sheet whose lateral thickness is not constant and only the edges are thick, the ends may wind up in a tangled shape, resulting in deformation of the coil or collapse of the coil. The board may get scratched. In order to prevent this, the position of the edge detector 4 is periodically moved in accordance with the number of turns of the plate to wind the strip in a meandering manner. This meandering winding is called staggered winding.

For staggered winding, take-up roller rotation detector 13° detection quality 1 detection! S14 is provided to receive both signals and drive a small motor 17 or cylinder etc. by the take-up roller rotation signal conversion adder 15 and the edge position detector position control device 16.
It is necessary to control the edge position detector position.

According to this configuration, the lever 5, whose one end is fixed to the support base 2 and extends, needs to have a strong structure that can prevent vibration and deflection, which makes it expensive. Furthermore, since the take-up roller is laterally moved by the same distance as the detected amount of deviation, there is a drawback that control is not optimal in practice due to the influence of the feed speed and deviation rate.

In order to solve this drawback, Japanese Patent Publication No. 44-29606 provides a detection device capable of follow-up control for detecting the edge position in addition to the conventional control device. In this case, two sets of control devices are required and are expensive.

In addition, the staggered winding described above requires parts such as a take-up roller rotation detector, a detector position detector, and a small motor, and since these parts are movement-controlled, a strong support mechanism is needed to support them, and parts such as a small motor are required. requires additional energy.

Furthermore, in the method described in Japanese Utility Model Publication No. 49-22516, it is shown that a fixed edge detector is used to control the center position of the strip on the take-up roll, but because of staggered winding, In this case, a mechanism must be added to move this fixed edge detector in accordance with the number of turns.

The purpose of the present invention is to solve the above-mentioned drawbacks, to correct the winding deviation with high accuracy with a simple and inexpensive structure, and to provide a long belt-like material that can meet various demands. The present invention provides a winding method and device.

The method for winding up a long belt-like object according to the present invention is based on the method for winding up either one or both edges of the belt-like object at an upstream position of the S-taking roller, from a reference edge position or a reference center position to an actual edge position or The amount of deviation in the center position is detected by a fixed detector.
Control i1M that moves the roller laterally from the reference position by a distance calculated by calculating the amount of deviation in order to bring the winding edge position or center position to a predetermined relative position with respect to the roller end.
I do.

According to a preferred embodiment, the operation adds a function of the number of turns to the amount of deviation.

The winding device for a long belt-shaped article according to the present invention is configured to provide an actual edge position from a reference edge position or a reference center position with respect to one or both edges of the belt-shaped article at an upstream position of two winding rollers. A fixed detector detects the amount of deviation in the center position, and the roller is moved by a distance calculated by calculating the amount of deviation in order to set the winding edge position I or the center position to a predetermined relationship position with respect to the roller end. A drive device and a control device are provided for lateral movement from a reference position.

The lateral movement distance of the take-up roller is theoretically the same as the amount of deviation in the edge position or center position, and known devices calculate this value, but in reality it is the amount of deviation in the feed speed of the strip. The error will be based on the rate of change, etc. Furthermore, if the edges are thick, staggered winding may be desired without intentionally aligning the edges.

The configuration of the present invention makes it possible to easily and arbitrarily perform the various winding operations described above.

Embodiments and drawings illustrating the present invention will be described. In each figure, the same reference numerals indicate similar parts or components.

FIG. 1 shows a winding device according to an embodiment of the present invention, and a winding roller 1. A support base 21 that supports the roller; a strip 3 to be wound up;
a controller 6 for supplying an output signal of the detector 4 for detecting the edge position of the detector 4; A drive device 7 for laterally moving the support base 2
1. Rotation drive device for the take-up roller 18. Roller 9.10. It has a position detector 11 for the winding roller l.

When performing staggered winding, a winding row rotation detector 13 is added. Of course, this is not necessary when staggered winding is not performed.

In addition, a detector 4' is added when controlling the center position of the belt-like object. However, if the length of the detector 4 is sufficiently longer than the width of the strip 3, it is also possible to detect both ends using one detector.

The strip 3 is fed through rollers 9, 10 in the direction of the arrow and wound onto a winding roller l as a coil.

A detector 4 is arranged between the rollers 9,10. The detector 4 is of a fixed arrangement and is independent of the movement of the support 2. For this reason, the detector 4 is of a type with a wide detection band, so that it can cope with large deviations of the band-shaped object 3.

The control device 6 that supplies the output of the detector 4 is a calculator.

It includes an amplifier circuit, and compares and calculates the input signal with the detection signal of the position detector 11 of the take-up roller 1, and controls and supports the drive device 7 by an optimally set distance for horizontal displacement of the strip 3. Move platform 2.

An example of this calculation will be described next.

X: Deviation from the li”4 point detected by the detector Y: Winding 1
If we consider the deviation in the Chinese direction from the reference position for cola control, then in principle the fixed arm of the prior art is controlled so that Y=X.

However, the amount of lateral movement of the first take-up roller 1 for correcting misalignment is a function of the detected edge misalignment, but also depends on the distance between the first take-up roller l and the detector 4, the speed of the strip 3, and the misalignment rate. In many cases, the ratio is not 1:1. Therefore this needs to be corrected.

The apparatus for winding up a long belt-shaped article described in Utility Application No. 159306/1987 by the applicant shows a device for winding up a long strip onto a roll with the edges aligned. in this case.

Y=kX　　k≦1　.

Furthermore, if the edges are thick, if the edges are perfectly aligned, the edges of the roll will bulge, which is inconvenient.

In this case, staggered winding with mismatched edges is desired. For this purpose, Y = k When switching the meandering direction for each time, use ro which is an integer multiple of n such that r>re>r-n.In this way, it is applicable to both cases where the edges are perfectly aligned and the required staggered winding. do.

The block diagram of FIG. 2 shows the case where the above-mentioned edges are made to coincide.

In block 20, the control device 6 generates a reference position setting signal and supplies an edge reference position M and a drive reference position N to blocks 21,22. The detector 4 detecting the strip 3 in block 23 generates an edge position signal U and supplies it to block 23 . In block 24, block 21.23
The positional deviation X is obtained by calculating the signal. Furthermore block 25
Multiply the proportional coefficient k by the required positional deviation Y in block 2
6 and supplies it to the controller 6'.

On the other hand, the position detector 11 of the one-rotation drive device indicates the drive device position W.
is detected in block 27, and block 22 is detected in block 28.
The difference Z and -N from the drive device reference position N are obtained and supplied to the controller 6'.

The regulator 6' calculates the output from the blocks 26, 28 by an integral operation and supplies the required output to the drive 7. This makes it possible to control the edges of the strip 3 to match on the roll.

FIG. 3 shows a block diagram of a circuit for performing staggered winding as an example of possible mismatched edges of a strip on a roll according to the present invention.

Since FIG. 3 is the same as in FIG. 2 with the addition of a staggered signal generator, only the differences will be explained.

In block 31, the stagger signal generator detects the winding rotation speed by the winding roller rotation detector 13 which detects the rotation speed of the winding roller rotated by the winding drive device 8, and the winding rotation function 5=f (r) is generated, and block 32 calculates Y=kX from block 26 to obtain the corrected positional deviation Y°·kX+4(r).
8 and further roller 9 or 1
The control sensitivity proportional variable V(t) based on the traveling speed of the strip material from the block 33 calculated based on the speed signal V' of the speed detector 12 provided at 0 is integrated in the block 34, and the control (ie
Y'-Z)v is supplied to the controller 6'.

The controller 6' calculates this value by an integral operation and supplies an output to the drive device 7 to perform necessary control.

Note that as an example of the control sensitivity proportional variable V, a linear function v=av + b of the speed V' may be used.

When the sensitivity is constant, V is kept constant, so the speed detector 12 shown in FIGS. 1 and 3 is unnecessary.

Although the winding roller rotation detector 13 is provided in FIG. 3, when the winding diameter can be detected or calculated, the speed detector 1
Since the rotation speed r can be determined by knowing the running length of the strip from the signal from 2 and dividing this by πD, the take-up roller rotation detector 13 becomes unnecessary.

By using the control circuit shown in FIG. 3, staggered winding is performed using a relatively hour wheel circuit that has no moving parts compared to the known detection without moving the throat, and furthermore, when aligning the edges, block 32 is used.
The same system as in Fig. 2 without supplying the signal from ? [ff.

In the above description of FIGS. 2 and 3, the edge position detector may detect the position of one edge of the strip 3, and the edge position detector may detect the edge position of one edge of the strip 3. It is also possible to detect the center position of the width of the strip using detectors installed at both ends of #3. The circuit for calculating the center position is well known and is the same as that of Japanese Utility Model Publication No. 4122516, so the description thereof will be omitted.

February ■ Enoki's Disappointment The present invention makes it possible to correct the lateral movement of the take-up roller in response to lateral deviation of the strip, and to perform the required winding of the take-up roller such as staggered winding using the minimum amount of equipment when winding the strip. It can be easily set by scratching.

Since the detection part is fixed, there is no error due to vibration during movement, and i
There is no need for a strong and heavy movable part to support the J motion detection section, and equipment costs and driving power can be reduced. Further, it is possible to minimize the addition of equipment for calculation control such as staggered winding and stability control using proportional control.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a winding device according to an embodiment of the present invention, and FIG.
The figure is a block diagram of the control when the ends of the strip are made to coincide, FIG. 3 is a block diagram of the control when the ends of the strip are wound in an arbitrary staggered manner, and FIG. 4 is a perspective view of a conventional winding device. It is a diagram. ■110 Take-up roller 21. Support stand 31. Strip 41
9. Edge position detector 69. Control device 710. Drive device 898 rotation drive device

Claims (1)

[Claims] 1. In order to wind up a strip, the amount of deviation of the actual edge position from the reference edge position with respect to one edge of the strip at an upstream position of the winding roller is calculated. Determining the center position of the strip by detecting it with a fixed detector or by detecting both edge positions, and detecting the deviation in order to bring the winding edge or center position into a predetermined relationship position with respect to the roller end or the roller center. A method for winding up a long belt-like object, characterized by controlling the roller to move laterally from a reference position by a distance calculated by performing calculations on the amount. 2. The winding method according to claim 1, wherein said calculation adds a function of the number of windings to the amount of deviation. 3. A winding device for a strip, which detects the amount of deviation of the actual edge position from a reference edge position with respect to one or both edges of the strip at an upstream position of the winding roller. A fixed detector, and a drive device and a control device that move the roller laterally from a reference position by a distance calculated by calculating the amount of deviation in order to bring the winding edge position into a predetermined relative position with respect to the roller end. A winding device for a long belt-like object, comprising: