JPH0136956Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a device for measuring the tension in the width direction of a fabric, and more specifically, it relates to a device for measuring the tension in the width direction of a fabric, and more specifically, it relates to a device for measuring the tension in the width direction of a fabric, and more specifically, it relates to a device for measuring the tension in the width direction of a fabric, and more specifically, it relates to a device for measuring the tension in the width direction of a fabric. The present invention relates to a device for measuring tension in the width direction.

BACKGROUND OF THE INVENTION Various types of continuous heat treatment apparatuses have been proposed for introducing a fabric tentered by a tenter into a fabric processing chamber equipped with a hot air jetting apparatus and performing treatments such as drying and heat setting. In the conventional fabric processing process, in order to adjust the tension applied to the fabric during drying and heat setting as described above, the edges of the fabric are cut using a tenter before being introduced into the fabric processing chamber. The cloth is supported under tension and introduced into a hot air atmosphere while maintaining a constant cloth width.

Problems to be Solved by the Invention However, the width of the fabric is affected not only by the temperature and blowing time of the hot air, but also by the weave structure and basis weight of the fabric. The amount of fabric shrinkage may vary unexpectedly. Furthermore, the original width dimensions of the introduced fabrics may be irregular. In such a case, if the amount of width expansion of the fabric exceeds the allowable range, excessive tension in the width direction will act on the fabric, causing problems such as edge tearing and uneven shrinkage. In order to avoid such problems, it is necessary to measure the tension of the fabric introduced into the fabric processing chamber during drying and heat setting, and maintain a tension level that is appropriate for the heat treatment conditions and woven structure. . However, conventional fabric processing chambers are not equipped with a device to measure the tension in the width direction of the fabric, making it extremely difficult to set the amount of shrinkage of the fabric, in other words, the tension in the width direction of the fabric. This was causing problems such as an increase in waste and hindering labor savings.

The main object of the present invention is to provide a device for measuring the tension in the width direction of a fabric, which can solve the above-mentioned problems found in conventional fabric processing chambers or continuous fabric heat treatment processes.

Means for Solving the Problems In view of this objective, the present invention has been developed by locking both sides 2a, 2a of the fabric 2 to be processed with tenter clips 3, 3, and inserting the tenter clips 3, 3 into the fabric processing chamber 1. In a continuous heat treatment apparatus for fabrics that is moved at a constant speed along a pair of running rails 4, 4 installed in the longitudinal direction, the pair of running rails 4, 4 are supported by a pair of slide blocks 5a, 5b, and the slide Each of the blocks 5a and 5b is screwed into a left-hand screw 7a and a right-hand screw 7b which are connected to each other by clutches 8 and 8 on the same axis while facing each other in the width direction of the fabric processing chamber 1. is supported so as to prevent movement in the axial direction, and the other screw 7b is supported so as to be slidable in the axial direction.
A pressure member 7d is provided at the end of the pressure member 7d, and a load sensor 1 is mounted on a part of the machine frame 1a facing the pressure member 7d.
1, and is configured to detect the widthwise tension acting on the processed fabric 2 by the pressure member 7d and the load sensor 11. be.

Embodiment FIG. 1 is a cross-sectional view of a fabric processing chamber illustrating the main structure of the device of the present invention, and FIGS. 2A and 2B illustrate the structure of the connecting clutch portion of the rail width adjustment mechanism and the sensor mounting portion. FIG. As can be seen in these drawings, inside the fabric processing chamber 1, a tenter device is installed to remove the edges 2a of the fabric 2 to be processed.
Clip 3 that moves at a constant speed by locking with pin 3a
A running rail 4 is provided which functions as a guide member when the clip 3 moves at a constant speed along the longitudinal direction of the fabric processing chamber 1, that is, along the moving direction of the fabric 2 to be processed. The clip 3 and the running rail 4 are placed on slide blocks 5a and 5b which are arranged opposite to each other at both ends of the fabric 2 to be treated, and the slide blocks 5a and 5b are
It is slidably supported on the rail 10 in a screw-engaged state with a left-hand screw 7a and a right-hand screw 7b, which are arranged on the same axis in abutted state. As seen in FIG. 2A, the left-hand screw 7a and right-hand screw 7b having a square screw structure have meshing teeth 8a fixed to their respective butting ends.
They are connected by clutches 8, 8 with 8b. The left-hand screw 7a is rotatable but supported by bearings 9b and 9c so as not to move in the width direction, and the right-hand screw 7b is rotatable and supported by bearings 9a and 9c so as to be slidable in the width direction. 9c.

As mentioned above, the pair of rail width adjustment mechanisms 6 are
It consists of a pair of slide blocks 5a, 5b on which the left and right running rails 4 are placed, a rail 10, a pair of left-hand and right-hand screws 7a, 7b, bearings 9a, 9b, 9c, and a clutch 8, and a chain drive means 12 is connected to it from the outside. It is configured to be adjustable through the

A pressure member 7d is attached to the protruding end 7c of the right-hand screw 7b from the bearing 9a;
d is locked by the fixing pin 13 so as to maintain a non-rotating state, and in this state is in pressure contact with the load sensor 11 fixed to the outer wall.

The tension in the width direction acting on the fabric 2 is caused by the pins 3a,
Clip 3, running rail 4, slide block 5
The force is transmitted to the right-hand screw 7b via the pressure member 7b, and further transmitted from the pressure member 7d to the load sensor 11.

At this time, the meshing teeth 8a, 8b of the clutch 8
In between, it is necessary to provide a top gap G that can sufficiently absorb the amount of displacement of the sensor 11.

The pair of rail width adjustment mechanisms 6 in the above embodiment are connected by clutches 8, 8 with meshing teeth 8a, 8b having a top gap G.
The scope of rights to this invention should not be construed as being limited by such illustrative explanations. For example, the right-hand thread and the left-hand thread may be supported independently, and the adjustment may be made using chain drive means separately from a counter shaft (not shown) provided parallel to the right-hand thread and the left-hand thread.

Further, as the sensor 11 for tension detection, a general-purpose load cell, a magnet cell, etc. can be used, and the detected tension value is sent to a known amplifier and arithmetic circuit, and is recorded and displayed as an analog signal or digital signal ( (not shown).

Since the device of the present invention is constructed as described above,
By detecting the tension in the width direction generated by the width-widening operation of the tenter rail or the contraction of the fabric, it is possible to accurately grasp the magnitude of the tension applied to the fabric during processing.

Effects of the invention According to the device of the invention, it is possible to continuously detect the tension along the width direction of the fabric to be processed, which has been difficult to measure up until now, so that defects caused by inappropriate tension settings can be detected. It is possible to prevent the occurrence of a backlash. Thus, the present invention can have a significant effect on improving the quality of fabrics introduced into the drying process and heat setting process and reducing costs.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view of a fabric processing chamber illustrating the main structure of the device of the present invention, and Fig. 2 A and B are partial cross-sectional views illustrating the structure of the connecting clutch portion and sensor mounting portion of the rail width adjustment mechanism. It is a diagram. 1... Fabric processing chamber, 2... Fabric to be treated, 3...
Clip, 4... Traveling rail, 5a, 5b... Slide block, 6... Rail width adjustment mechanism, 7a
...Left-hand thread, 7b...Right-hand thread, 8...Clutch,
8a, 8b... Clutch meshing teeth, 10...
Rail, 11...Load sensor for tension detection.

Claims (1)

[Scope of utility model registration request] In a continuous heat treatment apparatus for fabric, in which both sides of the fabric to be treated are locked with tenter clips, and the tenter clips are moved at a constant speed along a pair of running rails installed longitudinally inside a fabric processing chamber, the pair of running rails are are supported by a pair of slide blocks, and each of the slide blocks is screwed into a left-hand screw and a right-hand screw that are connected by a clutch on the same axis, facing each other in the width direction of the fabric processing chamber. The screw is supported in a state where movement in the axial direction is prevented, and the other screw is supported so as to be slidable in the axial direction, and a pressure member is provided at the end of the screw supported so as to be slidable in the axial direction,
A load sensor is provided in a part of the machine frame facing the pressure member, and the tension in the width direction acting on the fabric to be processed is detected by the pressure member and the load sensor. A device for measuring tension in the width direction of a fabric.