JPH01117162A - Fabric length measurement and running/stopping method and device - Google Patents

Abstract

PURPOSE:To make a joint at a position most approximate to a setting cloth length value automatically detectable by installing a detecting element, which operates when cloth length measured at a measuring part reached the setting value, and detects a cloth joining part, and also installing a travel control part stopping a cloth travel means with a detection signal out of this detecting element. CONSTITUTION:At a measuring part 3 coming into contact with cloth being traveled by a travel means, cloth length is operated by a cloth length measuring computing element 16 from rotational frequency of a rotor 2, and this measured value is compared with the setting value of a cloth length setter 17. With the compared result, when this measured value is reached to the setting value, a joint detection starting signal 18 is outputted to a joint catch apparatus 19 from the cloth length measuring computing element 16. Operation of the joint catch apparatus 19 is started by this starting signal 18, while a joint is detected by this joint catch apparatus 19, and at the time of this detection, a travel stopping signal 20 is outputted to a travel control part 21, thereby stopping the travel of cloth.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a method for measuring the length of a fabric when feeding a fabric running in an expanded form as a preparatory process for dyeing, scouring, etc., and stopping at the repeating part. The present invention also relates to a traveling stopping method and a device therefor.

Conventional technology Conventionally, methods for measuring the length of fabric and detecting seams include not only human visual observation but also the use of a light source as shown in JP-A-60-194166 and JP-A-61-1) 9764, etc. Seam detectors using electromagnetism and other seam detectors have been disclosed.

Problems to be Solved by the Invention However, when measurement is performed visually, measurement errors are inevitable and labor costs increase. In addition, when measuring the fabric length using a seam detector, it is assumed that the seam per one thread is always a constant value, so if the length between the seams is constant, accurate measurement values and running stops can be obtained. You can, but
The length between repeating parts is not necessarily constant.

Therefore, even if the fabric length value is calculated and displayed by the seam detector by reading the number of seams passed by the running fabric, it will be inaccurate. In addition, when the length of the fabric is measured using a simple fabric length measuring device and the running of the fabric is stopped at a predetermined length and then cut, there are problems such as cutting at a part other than the repeating part, resulting in wasted fabric. .

Therefore, in practice, the fabric running means is set to automatically stop when it reaches a preset value (for example, 3000 m) on the fabric length measuring device, and when it stops, the operator manually runs the fabric further to seal the seam. I'm working on a search.

The purpose of the present invention is to solve the above-mentioned problems and to perform a detection operation of the repeating part when the preset fabric length exceeds the set value, for example, when the fabric length is set to 2980m against a tentative target fabric length of 3000m. After the detection operation, the running of the fabric is stopped when the first repeating part is detected.

Means for Solving the Problems The present invention aims to achieve the above-mentioned object by a method according to a first invention. The second long comparison operation
means, a third means which starts operating at the same time as the measured value reaches a set value, and detects the fabric joining part; and a fourth means which issues a signal to stop the running of the fabric based on this detection. The length measurement and running stop method were used.

The invention of the device according to the second aspect of the invention provides a means for moving the fabric, a guide consisting of a roll or a bar attached so as to be in contact with the fabric surface, and a position corresponding to the guide with the fabric interposed therebetween. A fabric length measuring section based on the rotational speed of a rotating body attached so as to be in contact with the fabric length, a fabric length comparison computing section that compares a preset fabric length with the measured value by the measuring section, and The fabric length measuring and running stopping device is made up of a detecting section for the spliced part of the fabric that starts operating in response to a signal, and a running control section that stops the running means of the fabric in response to a signal based on the detection by this detecting section.

Operation In the first aspect of the present invention, while measuring the length of the running fabric (first means), a comparative operation is performed to determine whether the fabric length has reached a preset value (second means). When the result exceeds the set value, a repeating part is detected to issue a signal to stop the next traveling stop (third means), and when the repeating part is detected, a signal is sent to the next traveling control part. The fabric is then stopped from running (fourth means). Therefore,
Even if the length between the spliced parts is not a constant value, for example, 50 m/seam and 100 m/seam are joined, or even if the shrinkage rate due to processing changes, the fabric can run longer than the set length. is reliably obtained, and the traveling can be stopped at the first repeating section located at the next position beyond this length.

The apparatus according to the second aspect of the invention has a fabric running means, and the fabric length is calculated from the rotation count number by a rotating body attached so as to be in contact with the running fabric. Compare and calculate this measured value with the preset fabric length,
As soon as the set fabric length is exceeded, the detection section of the repeating section starts operating, and control is such that the running of the fabric can be stopped at the same time as detection.

Example The drawings shown as examples will be explained.

FIG. 1 is a schematic side view showing the running state of the fabric, FIG. 2 is an enlarged plan view of the main part, FIG. 3 is an enlarged side view of the same, and FIG. 4 is a control block diagram.

1 is a rolled fabric, 2 is a rotating body such as a roller for measuring fabric length, and 3 is an encoder for measuring fabric length as a fabric length measuring section. 4 indicates a sensor of a seam detector as a detection part of the repeating part. The encoder 3 and the sensor 4 are each electrically connected to a control section. 5 is a touch roll.

6.7 is a guide roller and other guides; 8 is a fabric.

Incidentally, reference numerals 9 to 15 in FIG. 1 are guide or drive rollers, which constitute a device for moving the fabric to a predetermined position.

FIG. 4 shows a control block diagram of this embodiment, and the guide 6.7 is located at a position corresponding to the guide 6.7 in the length measuring section 3. It is calculated by the fabric length measurement calculator 16 based on the rotation speed of the rotating body 2. A comparison is made with the set value of the cloth length setting device 17,
When the measured value reaches the set value, a seam detection start signal I8 is issued, the seam is detected by the seam catcher 19, and a travel stop signal 20 is sent to the travel/reli control section 21.

Using this device, in the invention of the method, the first means to the fourth means are
Measures will be implemented sequentially.

Effects of the Invention In the method of the present invention, the first means to the fourth means are sequentially carried out, and in the control section, the length of the cloth is measured, compared, and certified.
When the fabric length exceeds a preset length, the seam detector starts operating, and at the same time as the next first seam U is detected, a signal is issued to stop the fabric from running.

In the device of the present invention, the fabric length is accurately measured by a fabric length measuring means on the fabric surface that is suspended on a traveling device, and when the fabric length exceeds a set value, a signal from the seam detector is used to detect the fabric length. Now you can catch accurately.

As described above, in the present invention, the winding amount can be measured extremely accurately by mechanical control rather than by human visual inspection, etc., which can reduce labor costs, etc., and also ensure that the fabric length reaches the set value when the fabric is stopped. Since it is designed to operate at a position beyond which the seam is detected at the position closest to the set fabric length value, there is no waste in stopping or cutting the fabric.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an apparatus for carrying out the present invention, FIG. 2 is an enlarged plan view of the main parts, and FIG. 3 is an enlarged side view of the main parts.
FIG. 4 is a control block diagram. 2...Rotating body 3...Fabric length measuring section 4...Repeat section detection section

Claims (2)

[Claims] (1) A first means for measuring the length of the running fabric, a second means for comparing and calculating the fabric length between a preset fabric length and the measured value, and operates simultaneously when the measured value reaches the set value. A method for measuring the length of a fabric and stopping the running of a fabric, characterized in that a third means for detecting a part of the fabric that has started to be folded and a fourth means for issuing a signal to stop the running of the fabric based on this detection are carried out in sequence. (2) A means for moving the fabric, a guide such as a roll or bar attached so as to be in contact with the fabric surface, and a guide consisting of a roll or bar attached so as to be in contact with the fabric surface at a corresponding position with the fabric between the guides. a fabric length measuring section based on the rotational speed of a rotating body; a fabric length comparison calculation section for comparing a preset fabric length with a value measured by the measuring section; and a fabric length comparison calculation section that starts operating in response to a signal from the fabric length comparison calculation section. A fabric length measuring and running stopping device comprising: a detecting unit for a repeating unit; and a running control unit that stops a fabric running means in response to a signal based on the detection by the detecting unit.