JPH05193300A - Automatic starcher for wallpaper - Google Patents

Abstract

PURPOSE:To improve precision in stopping by a specific size by a method wherein a signal which varies gradually following a specific decelerating pattern prior to reaching a set length is given a servo control system based on a pulse- counted result and a set speed and when the counted result reaches the set length, a motor is stopped. CONSTITUTION:A sensor 64 generates a number of pulses according to a transferred distance of a wall decorative material 7. Further, a speed detecting means 22 detects a transfer speed of the wall decorative material 7 based on the pulse. Furthermore, a servo control system 21 controls a speed of a motor 8 so that a detected speed signal becomes a value corresponding to a speed command signal to be separately inputted. Then, an acceleration and deceleration control means 23 gives a signal which varies gradually following a specific accelerating pattern to a set speed based on a seizing signal is given to the servo control system 21 as a speed command signal and besides, gives a signal which varies gradually following a specific speed pattern prior to reaching a set length based on the pulse counted number result and the set speed, and stops the motor 8 at a point of time when the counted result reaches the set length.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic wallpaper gluing machine for continuously applying a paste to the back surface of a long wall covering, mainly when a sheet-like wall covering is attached to an indoor wall surface. It is a thing.

[0002]

2. Description of the Related Art A general automatic wallpaper gluing machine is a main body having a glue tub built in between a stand for suspending a wall material (cloth) wound in a roll shape and a cloth receiver for receiving the cloth after gluing. The parts are arranged, various roll devices are incorporated in the main body, and the set length is glued at a set speed by a motor.

Usually, as the rolls incorporated in the main body, a relatively heavy gluing roll supported by frame plates as bearing plates arranged on both sides of the upper part of the gluing tub, and gluing of the gluing roll to the gluing roll. A doctor roll for adjusting the amount, a leveling roll located downstream of the gluing roll for leveling the glue transferred and applied to the wall covering, and a tension applied to the wall covering between the leveling roll. And a drive roll for sending out, and a pair of upper and lower rolls constituting a pinch roll that takes in the wall covering material while pinching it from above and below at a position on the upstream side of the gluing roll, and a shaft of the gluing roll and the upper roll. There is a pressing roll that presses the wall covering material from above so that the wall covering material comes into contact with the gluing roll at a predetermined circumferential length or more, and a gear is provided at a necessary roll shaft end of each roll. Each roll Te Ritsuke is driven by a single motor to work at a predetermined peripheral speed ratio.

In the automatic wallpaper gluing machine, one of the rolls is measuring the length of the wall covering which is being glued during the gluing work, and the rotation of the roll is stopped when the length measurement result reaches the set length. ing. Usually, this stop operation is performed by stopping the rotation of the motor that drives the rolls. Therefore, as the motor, a brake motor having good responsiveness at the time of starting and stopping, a geared motor incorporating IC servo control, or the like is used. ing.

[0005]

In the conventional automatic wallpaper gluing machine, firstly, the movement of the wall covering material is actually stopped even if the measurement result reaches the set length and the motor is stopped. There was a drawback that the delay was unavoidable until it was done and the extra length was glued. That is, the normal wallpaper moving speed during wallpaper gluing is 6 to 9 m / min, the maximum speed is about 12 m / min, and even in the case of an IC geared motor with good braking characteristics, the inertia of the load is relatively large, so it stops. There is a delay of about 0.2 seconds after the signal is generated until the roll is completely stopped. This causes a waste of about 2 to 3 cm even when operating at a steady speed and about 4 cm at the maximum speed. It was inevitable.

Secondly, the responsiveness of starting and stopping the drive system has a problem that it is slow at the time of stopping as described above, but it tends to be too fast at the time of starting. In the case of heavy weight, the wall covering may slip in the gluing machine, and tension may be applied too much, causing wrinkles and breakage. In addition, 70 to 80 cm of the end of the glued wall covering as the initial work There was a tendency that the feeding speed was too high when the paper was manually guided onto the tray so that the gluing surface was on the top, and the work became difficult.

Therefore, an object of the present invention is to improve the precision of the fixed length stop by minimizing the useless glue portion at the time of stop, and to prevent the wall covering from slipping, wrinkling and breaking even at the time of start. It is another object of the present invention to provide an automatic wallpaper gluing machine that makes initial manual work easy.

[0008]

SUMMARY OF THE INVENTION An automatic wallpaper gluing machine according to the present invention includes a glue tub while a sheet-shaped wall covering is moved along a predetermined path by a plurality of rolls which are rotationally driven by a motor. In an automatic wallpaper gluing machine that continuously transfers and coats the glue inside the back surface of the wall covering material with a gluing roll,
In order to achieve the above-mentioned object, a sensor that generates a number of pulses according to a moving distance of the wall covering, a speed detecting unit that detects a moving speed of the wall covering based on the pulse,
A servo control system for controlling the speed of the motor so that the speed signal detected by the speed detecting means becomes a speed value corresponding to a speed command signal inputted separately, and a set speed given in advance based on a start signal. Before giving a signal that gradually changes according to a predetermined acceleration pattern to the servo control system as the speed command signal and before the counting result reaches a preset set length based on the counting result of the pulse and the set speed. An acceleration / deceleration control means for giving a signal that gradually changes according to a predetermined deceleration pattern to the servo control system as the speed command signal and stopping the motor when the count result reaches a set length.

[0009]

In the wallpaper sizing machine according to the present invention, the motor operates in closed loop speed control by the servo control system including the sensor and the speed detecting means in the feedback loop. The speed command signal to the servo control system is given from the acceleration / deceleration control means as a signal that gradually changes in a predetermined change pattern at the time of starting and stopping.

That is, the sensor produces a number of pulses corresponding to the moving distance of the sheet-shaped wall covering to be glued by being moved by a plurality of rolls, which is a so-called photomicrosensor attached to one of the rolls. It is realized by a photoelectric incremental encoder. The speed detection means detects the moving speed of the wall covering material based on the pulse, and the servo control system responds to the speed command signal input from the acceleration / deceleration control means by the speed signal detected by the speed detection means. The speed of the motor is controlled so that the speed value becomes

When the servo control system receives a signal from the acceleration / deceleration control means for gradually accelerating to a set speed given in advance based on the start signal in accordance with a predetermined acceleration pattern, the motor starts the acceleration pattern of the speed command signal from zero speed. When the speed command signal reaches the set speed, the servo is locked and constant speed rotation is performed.

The moving distance (dimension) of the wall covering material after the motor starts rotating is monitored by counting the pulses, and when the pulse counting result reaches a certain count value before reaching the set length. The speed command signal given to the servo control system from the acceleration / deceleration control means becomes a signal that gradually decelerates according to a predetermined deceleration pattern. At the time when the speed command signal is switched to the deceleration signal, the pulse count value N is the residual length calculated in advance from the set length L, the set speed V at that time, and the preset deceleration rate D. When the pulse count value N reaches (LS) when the difference with S is reached, a speed command signal for gradually decelerating according to a predetermined deceleration pattern of the deceleration rate D is given to the servo control system. The motor is just stopped when the counting result reaches the set length L.

In the present invention, the acceleration pattern and the deceleration pattern at the time of starting the motor may be a continuous or stepwise changing pattern, and the respective acceleration rate and deceleration rate may be individually adjustable or fixed. .. Further, when decelerating or accelerating for the purpose other than stopping while working with the glue machine, an external command signal is given to the acceleration / deceleration control means to change the speed command at a predetermined acceleration or deceleration rate until another set speed. It may have an interrupt function that causes it.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the appearance of an automatic wallpaper sizing machine according to an embodiment of the present invention, and FIG. FIG. 3 is a block diagram of a motor drive control system in which is added, and FIG. 3 is a roll speed characteristic diagram.

First, referring to FIG. 1, a wallpaper gluing machine 1 includes a main body 3 having a glue trough supported by legs 2 and a cross roll 4 rotatably supported by a pedestal on the rear side of the main body 3.
And a cross receiver 5 arranged on the front side of the main body 3.

The wall covering material, that is, the cloth 7, is a cloth roll 4.
Further, an upper lid portion 6 that is openable and closable on an internal glue trough is hinged to the rear surface side of the main body portion 3, and the cloth 7 is passed under the upper lid portion 6. An operation panel for numerically displaying the length measurement result measured by a rotary encoder 64 (FIG. 2) described later in the central portion of the upper lid portion 6 and for giving a drive control command of the roll drive motor 8 attached to the side portion of the main body. 65 is provided. A cutter guide 36 for guiding the cutter when the cloth is cut in the width direction is provided on the front surface of the gluing machine main body 3.

As shown in FIG. 2, in the main body 3, a lower roll 31, a gluing roll 32, and a leveling roll 34, which form a pinch roll for taking in the cloth, are arranged in parallel in the lower portion of the cloth passing surface. Further, the doctor roll 33 and the glue raising roll 35 are arranged in contact with the gluing roll.

In the upper lid portion 6, an upper roll 61 constituting the pinch roll for taking in and a drive roll 63 for giving a tension to the cloth for feeding are arranged in parallel with each other above the cross passage surface. Further, between the upper roll 61 and the drive roll 63, a presser roll 62 that presses the cross 7 from above and rotates following is arranged in parallel, and the presser roll 62 has a swing angle adjustable by a presser angle adjustment link 66. Is.

The main body portion 3 and the upper lid portion 6 are hinged to each other on the rear side of the frame side plates, and the positions of the respective portions are determined so that the rolls are in the state shown in FIG. 2 in the closed state. In this state, the upper and lower pinch rolls 61 and 31 pinch the cross 7 therebetween, and the drive roll 63 and the leveling roll 34 sandwich the cross 7 between them.
It comes to approach through.

The rotation of the motor 8 is transmitted to the sizing roll 32 by the gear, and further transmitted to the lower roll 31 and the doctor roll 33 by the gear on the other end side of the sizing roll 32. The leveling roll 34 is driven by a doctor roll 33 via a gear, and the sizing roll 35 is a sizing roll 32.
Driven from another gear. Further, on the side of the upper lid portion 6, the drive roll 63 is driven by being coupled with the leveling roll 34 by a gear in a closed state thereof, and the other pressing roll 62 and the upper roll 61 are rotated by contact with the cloth 7. Is. A rotary encoder 64 such as a photomicrosensor is attached to the upper roll 61 so that the upper roll 61 functions as a length measuring roll for glued cloth.

In the gluing operation, the upper lid 6 is opened and the tip of the cloth 7 is pulled out from the cross roll 4, and the upper lid 6 is closed from the rear side of the main body through the space between the upper and lower pinch rolls 61 and 31 and the upper lid 6 is closed. The motor 8 is driven by a predetermined initial amount. The rolls connected by gears are rotated by a drive of the motor 8 at a predetermined peripheral speed ratio, whereby the glue in the trough attached to the gluing roll 32 by the gluing roll 35 is adjusted in advance by the doctor roll 33. The adhesive on the front surface of the gluing roll 32 is transferred and applied to the back surface of the cloth 7 that moves with the rotation of the gluing roll 32 under the pressing effect of the pressing roll 62.

The glued cloth then comes out to the front surface of the main body in a state where an appropriate tension is given by the drive roll 63 and the leveling roll 34. At this time, the glue surface due to the difference in peripheral speed of the leveling roll 34 is used. Is given a smoothing effect. When the cloth 7 comes out to the front by the initial amount, the motor 8 is temporarily stopped and the glue-unattached portion at the tip is cut by the cutter along the cutter guide 36, and then the required cross length is input from the operation panel 65. When the motor 8 is driven, the cloth of the required length glued to the back surface of the entire length is accumulated in a folded state on the cloth receiver (tray) 4 on the front surface.

In FIG. 2, the roll driving motor 8 includes a rotary encoder 64 and a servo control circuit 21 which generate a number of pulses corresponding to the cross movement distance according to the rotation of the upper roll 61.
And constitute a closed loop speed servo control system, and the output pulse of the rotary encoder 64 becomes a speed signal by the speed detection circuit 22 and is input as a feedback signal to the servo control circuit.

It is the acceleration / deceleration control circuit 23 that gives the speed command signal to the servo control circuit 21.
The speed signal from the speed detection circuit 22, the count value of the counter 24 that counts the pulse output of the rotary encoder 64, the set length and the set speed set in the input device 25 are input to the. The input device 25 also gives start and forced stop commands, as well as interrupt acceleration and deceleration commands.

The acceleration / deceleration control circuit 23 is the servo control circuit 2
1, an acceleration pattern generation circuit 231 that gradually changes the speed command signal according to a predetermined acceleration pattern, a deceleration pattern generation circuit 232 that gradually changes the speed command signal according to a predetermined deceleration pattern, a counting result of the pulse, and the set speed. Based on the above, the speed command signal is switched to a deceleration signal that gradually decreases according to a predetermined deceleration pattern by the deceleration pattern generation circuit 232 for the stop operation of the motor 8 before the counting result reaches a preset set length. And an arithmetic circuit 233 for generating a signal for.

The arithmetic circuit 233 calculates a deceleration rate from the set speed V based on the set length L and the set speed V given to the input device 25 and the deceleration rate D of the deceleration pattern preset in the deceleration pattern generation circuit 232. The cross movement length (remaining length) S until the motor 8 is completely stopped by decelerating at D is calculated.

The acceleration / deceleration control circuit 23 outputs a speed command signal to the servo control circuit 21 when a start signal or an interrupt acceleration command is given from the input device 25, or the acceleration pattern from the signal value at that time to a set speed to zero. The speed command signal is gradually increased according to the acceleration pattern of the generation circuit 231, and the speed command signal is maintained at the set speed in the steady state. When the interrupt deceleration command is given from the input device 25 or the pulse count value N of the counter 24 is changed to the input device. 25
When a difference (LS) between the set length L given to the deceleration pattern L and the remaining length S of the calculation result of the calculation circuit 233 is reached, a speed command signal is sent to the deceleration pattern generation circuit 232 to determine a predetermined deceleration rate D. Gradually decrease according to the deceleration pattern.

FIG. 3 is a speed characteristic diagram of the roll. Characteristic A is the case of the conventional speed servo control only, characteristic B is the characteristic C when it is controlled by a continuous acceleration / deceleration pattern according to the present invention.
Similarly, each shows the case where control is performed by a stepwise acceleration / deceleration pattern according to the present invention. In each characteristic, t _S is the starting point, t _L is the set length reaching point, and t _E is the roll complete stop point. In characteristic A, there is a delay of about 0.2 seconds between t _L and t _E. In the characteristics B and C, this delay hardly occurs. There is a slight delay between t _L and t _E in characteristics B and C, but this is because the gluing length always has a positive error with respect to the set length, and the gluing length is insufficient. This is because, in theory, it is possible to improve the fixed length stop accuracy up to the resolution of the rotary encoder 64.

As described above, the control operation according to the present invention suppresses the rapid acceleration of the roll at the time of start-up or during the acceleration in the middle to prevent the occurrence of slips, wrinkles, etc. of the cloth, and it is suitable for the initial work. It is possible to provide a high starting speed, and when the count result of the counter 24 reaches the set length L, the motor 8 is just completely stopped and the stopping accuracy at the glued set length is significantly improved. ..

[0030]

As described above, according to the present invention, since the useless glue portion is hardly generated at the time of stop, the accuracy of the fixed length stop is improved, and at the time of start-up, slips, wrinkles, and wrinkles of the wall covering material are generated. It is possible to obtain an effect that a breakage does not occur and a starting speed suitable for the initial work can be realized.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of an automatic wallpaper gluing machine according to an embodiment of the present invention.

FIG. 2 is a block diagram of a motor drive control system in which a schematic diagram of a roll configuration, which is a main part of the gluing machine in the previous figure, is added.

FIG. 3 is a velocity characteristic diagram of a roll.

[Explanation of symbols]

1: Wallpaper gluing machine, 2: Leg part, 3: Main body part with built-in glue tub, 4:
Cross roll, 5: Cross receiver, 6: Upper lid part, 8: Motor, 21: Servo control circuit, 22: Speed detection circuit, 2
3: acceleration / deceleration control circuit, 24: counter, 25: input device, 231: acceleration pattern generation circuit, 232: deceleration pattern generation circuit, 233: arithmetic circuit, 31: lower pinch roll, 32: glue roll, 33: doctor roll Three
4: Leveling roll, 35: Adhesive roll, 36: Cutter guide, 61: Upper pinch roll, 62: Presser roll, 6
3: drive roll, 64: rotary encoder, 65: operation panel, 66: presser angle adjustment link.

Claims (1)

[Claims] 1. A sheet-shaped wall covering material is moved along a predetermined path by a plurality of rolls that are rotationally driven in conjunction with a motor, while the glue in a glue tub is applied to the back surface of the wall covering material by a gluing roll. In an automatic wallpaper gluing machine that continuously transfers and applies, a sensor that generates a number of pulses according to the moving distance of the wall covering, and a speed detecting unit that detects a moving speed of the wall covering based on the pulse. A servo control system for controlling the speed of the motor so that the speed signal detected by the speed detecting means has a speed value corresponding to a separately input speed command signal, and a set speed given in advance based on a start signal A signal that gradually changes according to a predetermined acceleration pattern is given to the servo control system as the speed command signal, and the counting result is obtained based on the pulse counting result and the set speed. Is given to the servo control system as the speed command signal, which gradually changes according to a predetermined deceleration pattern before reaching a preset set length, and the motor is stopped when the count result reaches the preset length. An automatic wallpaper gluing machine, characterized by comprising acceleration / deceleration control means.