JPH05195423A - Device for spreading textile of hand pushing type - Google Patents

Abstract

PURPOSE:To reduce burden of an operator during hand pushing and to increase synchronizing accuracy of wheel revolving speed and revolving speed (feeding speed) of a feeding roll. CONSTITUTION:Revolving speed of a wheel 3 of a main body A of a textile spreading device is converted to an electrical signal by a rotary encoder 8, revolving speed of a servo motor is controlled by the outputted signal of the rotary encoder 8 and feeding speed of raw textile 101 by a feeding roll 37 is synchronized with the revolving speed of the wheel 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand-push type spreading device which is constructed so as to feed an original fabric onto a spreading table while manually propagating the spreading device.

[0002]

2. Description of the Related Art In a spreading device that cuts a roll of a roll fed on a spreading stand to a predetermined length and stacks the rolls, a roll that has been unrolled from a roll is rolled by a roll. It is carried out on the counter stand.

In such a retraction device, the conventional retraction device transmits the rotation of the traveling wheels when the retraction device body is manually pushed to the delivery roll through the chain transmission mechanism, and at the same time, the retraction device. A one-way unit is interposed in the transmission path between the traveling wheel and the feeding roll so that the feeding roll rotates in a constant direction (feeding direction) regardless of whether the traveling direction of the main body is forward or backward. In addition, a Vitaly pulley is used as the V-belt pulley on the feeding roll side so that the amount of the raw material fed by the feeding roll can be adjusted steplessly.

[0004]

Therefore, if the main body of the retraction device is pushed by hand with the conventional retraction device,
There is a problem that the resistance when the V-belt or the chain rotates is the resistance when pushing the V-belt or the chain, which is a heavy burden on the operator. Further, since the traveling speed of the main body of the spreading device is not constant due to manual operation and the chain of the chain transmission mechanism is loose, the accuracy of synchronization between the rotational speed of the traveling wheel and the rotational speed of the delivery roll (delivery speed) is improved. However, there is a problem in that it is difficult to increase the accuracy of adjusting the amount of the raw material fed by the feeding roll.

The present invention has been made in view of the above problems, and it is possible to reduce the burden on the operator during manual pushing by electrically controlling the rotation speed of the delivery roll with reference to the rotation speed of the traveling wheels. In addition, it is possible to easily increase the synchronization accuracy between the rotation speed of the traveling wheels and the rotation speed (feeding speed) of the feeding roll, and it is also easy to improve the adjustment accuracy of the feed amount of the material by the feeding roll. It is an object of the present invention to provide a hand-operated spreading device which can be made possible.

[0006]

SUMMARY OF THE INVENTION A hand-pull type spreading device according to the present invention is configured such that an unwinding roll unwinds an unrolled material roll from an unrolling roll onto a spreading table and an unrolling roll from the unrolling roll. A hand-push type spreader in which a main body of the spreader device is made to travel by hand is provided with means for generating an electric signal according to the rotational speed of a traveling wheel provided in the main body of the spreader device. A motor, the rotation speed of which is controlled by the output signal of the generating means, is used as the rotation driving source of the feeding roll.

[0007]

According to this structure, the resistance when the worker manually pushes the main body of the retraction device is only the resistance when the traveling wheels rotate. Also, the rotational speed of the traveling wheels is converted into an electric signal,
Since the electric signal controls the motor that is the rotational drive source of the feeding roll, the synchronization accuracy of the rotation speed of the traveling wheel and the feeding roll is improved, and the adjustment accuracy of the feeding amount of the material roll by the feeding roll is also improved. improves.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side structural view of a hand-pushing type spreading device according to an embodiment of the present invention, and FIG. 2 is a plan view of the same device. A spreading device main body (hereinafter, referred to as a device main body) A of the hand-push type spreading device includes a carriage 1 and an original fabric processing unit 2 mounted thereon.

The dolly 1 has a pair of front and rear traveling wheels 3 and 4 mounted on a frame 5. Further, a timing pulley 6 is coaxially provided on the front traveling wheel (hereinafter referred to as front wheel) 3, and the timing belt 7 is provided between the timing pulley 6 and a timing pulley 9 on the rotary encoder 8 side attached to the frame 5. It is wrapped around. Therefore, when the rotation of the front wheel 3 is transmitted to the rotary encoder 8 via the pulley 6, the belt 7 and the pulley 9, an electric signal corresponding to the rotation speed of the front wheel 3 is output from the rotary encoder 8 by the function of the rotary encoder 8. Is output. The output signal from the rotary encoder 8 accurately corresponds to the rotational speed of the front wheel 3 because the timing pulleys are used for the pulleys 6 and 9 and the timing belt is used for the belt 7. .. Reference numeral 10 denotes a handle for pushing by hand, and the handle 10 is provided at an appropriate height position of the frame 5. As shown in FIG. 2, the handle 10 is provided so as to project to the side of the frame 5, a power switch 11 is installed in the center thereof, and the grips 12 and 12 on both sides of the power switch 11 are touched. It has a built-in sensor. The function of the touch sensor will be described later.

In the frame 21 of the original fabric processing unit 2,
Various rolls such as a bucket roll 22 on which the original roll 100 is placed, a plurality of auxiliary rolls 23 arranged in parallel on both sides of the original roll 100, a deflocculating roll 24, a feeding roll 25, and a dome 26 are attached. Moreover, a hanging space 27 for the material 101 is formed between the unwinding roll 24 and the dome 26. The bucket roll 22 is connected to the drive motor 31 via the input side pulley 28, the chain 29 and the output side pulley 30, and the unwinding roll 24 is passed through the input side pulley 32, the chain 33 and the output side pulley 34. 35, and further, the pay-out roll 25
Is connected to a motor 39, which is a rotary drive source, via an input side pulley 36, a chain 37, and an output side pulley 38.
A servomotor is used as the motor 39 as a rotation drive source of the feeding roll 25. Therefore, the rotation speed of the pay-out roll 25 and the timings of rotation start and rotation stop are accurately controlled by input signals of a servo amplifier (not shown) attached to the motor 39.

Here, the rotary encoder 8 described above is used.
Output signal (electrical signal) is a pulse signal corresponding to the rotation speed of the front wheels 3, that is, the traveling speed of the apparatus main body A, and the pulse signal is converted by a pulse signal conversion board (FV converter: not shown) to perform the servo control. It is designed to be input to the amplifier. Then, the state of the output signal of the rotary encoder 8 is switched by the electric signal from the touch sensor included in the handle 10. That is, when the operator swings on the handle 10, the gain becomes a normal value, and the electric signal from the touch sensor turns on the servo amplifier to start the motor 39 and rotate the feeding roll 25. When the person releases the handle 10, the gain down signal is input to the servo amplifier, the drift of the motor 39 is stopped, and the payout roll 25 becomes free. Further, the FV converter is provided with a volume for varying the input pulse, and the rotation speed of the feeding roll 25 is controlled by adjusting this volume.

A cutter unit 40 is provided at the end of the frame 5 of the carriage 1. This cutter unit 40 is
Rotating cutter 41, guide van 42, windshield curtain 4
3 and the like are provided, and gradually increase in synchronism with the increase in the number of times of rebound.

In the hand-operated spreading device constructed as described above, when the operator switches the power switch 11 to the on state, the bucket roll 22 is started and the original fabric roll 100 mounted thereon is rotated. At the same time, the unwinding roll 24 starts to unwind the original fabric of the original fabric roll 100. Further, when the worker holds the handle 10 in his hand to run the apparatus main body A, an electric signal corresponding to the speed at the time of running, that is, the rotation speed of the front wheels 3 is output from the rotary encoder 8 and is fed out by the output signal. The rotation speed of the motor 39 of the roll 25 is controlled. Therefore, the burden when the operator manually pushes the apparatus main body A is mainly the resistance when the front and rear traveling wheels 3 and 4 rotate, and the burden becomes extremely small, and the operator can use the apparatus main body A with a small force.
Can be driven. Then, even if the traveling speed of the apparatus main body A changes sequentially, the rotation speed of the feeding roll 25 changes in accordance with the change, so the feeding speed (feeding amount) of the material 101 by the feeding roll 25 is the apparatus main body A.
Is always commensurate with the traveling speed of No. 1, and it is difficult for the original fabric 101 extended on the reciprocating table 200 to be pulled, loosened, or wavy. In addition, the amount of the roll 101 fed by the feed roll 25 can be adjusted to the most appropriate state by operating the above-mentioned volume.

When the original fabric 101 is extended over the spreading table 200 over a predetermined length, the cutter unit 40 is started and the rotary cutter 41 cuts the original fabric 101.

Since the retraction is performed both when the apparatus body A is moving forward and when it is moving backward, the feeding roll 37 is rotating in the same direction when the apparatus body A is moving forward and when it is moving backward. Such a function is easily exhibited by inverting the output pulse of the rotary encoder 8 in the FV converter described above during forward movement and during reverse movement.

[0016]

EFFECTS OF THE INVENTION Since the hand-operated spreading device of the present invention is constructed so as to convert the rotational speed of the traveling wheels into an electric signal and control the rotational speed of the feeding roll by the electric signal.
Compared to the conventional method, the burden on the operator during manual pushing is greatly reduced, and at the same time, the accuracy of synchronization between the rotation speed of the traveling wheels and the speed of the payout roll and the accuracy of adjusting the feed amount of the material by the payout roll have been improved. Compared to this, it is possible to greatly improve. Therefore, the worker can smoothly operate the retraction device body.

[Brief description of drawings]

FIG. 1 is a side view of a hand-operated spreading device according to an embodiment of the present invention.

FIG. 2 is a plan configuration diagram of the device.

[Explanation of symbols]

 A main body of the spreading device 3 front wheels (running wheels) 8 rotary encoder (means for generating an electric signal) 24 unrolling roll 25 feeding roll 39 motor (rotational driving source of feeding roll) 100 raw roll 101 raw roll 200 rolling roll stand

Claims (1)

[Claims] 1. The unrolling roll unwinds the unrolled roll from the unrolled roll onto the spreading table with the unrolling roll, and the unrolling device main body is made to travel by hand while the unrolled roll is unrolled. The hand-push type spreading device is provided with means for generating an electric signal according to the rotation speed of the traveling wheels provided in the main body of the spreading device, and the motor whose rotation speed is controlled by the output signal of this electric signal generating means A hand-operated spreading device, which is used as a rotation drive source for the delivery roll.