JPS5853111B2 - Measuring device for degree of confounding - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for measuring the degree of entanglement of multifilament yarns.

If the passability and workability of multifilament yarn in the weaving and weaving process or its preparation process could be evaluated using a simple method and device, it would greatly contribute to streamlining management and improving productivity.

In the past, there have been examples of measuring the degree of confounding with the above intention in mind.

It is as shown in Fig. 1, in which one end of the multifilament yarn 1 is attached to a load 2 and the other end is suspended from a frame 3, a moving needle 4 is inserted between the fibers constituting the multifilament yarn, and the needle load 5 The moving needle 4 is dropped by the weight of
It was designed to measure the distance traveled.

In such conventional methods, the moving distance varies greatly depending on the position where the moving needle is inserted, and in the case of intermittent intertwined multifilament yarns, there is a possibility that the length of the unentangled portion may be distributed from the entire length to zero. The variation in the measured values was mixed with that of the thread itself, which was inconvenient when evaluating the intertwining property.

Furthermore, when reading the position of the movable hand 4, the position of the movable hand 4 is not certain, which tends to lead to measurement errors.

An object of the present invention is to provide an apparatus for measuring the degree of entanglement with high accuracy.The present invention was achieved as a result of intensive research in view of the deficiencies of the conventional methods described above.

The present invention is constructed as follows. That is, in a device for measuring the degree of entanglement of multifilament yarn, A. a fixed needle-shaped object inserted between the fibers constituting the multifilament yarn at substantially right angles to the yarn axis direction, and B. C5 means for applying a constant tension to the filament yarns; C5 means for applying a constant tension difference between the filament yarns on both sides of the fixed needle-shaped object to move the filament yarns; D. means for measuring the amount of movement of the filament yarns. An apparatus for measuring the degree of entanglement, which can be expressed as the degree of entanglement by measuring the length of filament yarn moving through a fixed needle under constant tension.

The present invention will be explained in more detail.

FIGS. 2 and 3 are schematic diagrams showing an apparatus used in an embodiment of the present invention, and the plane of the paper shows a vertical plane.

In FIG. 2 or 3, perform the following operations.

(1) Multifilament yarn 1 is connected to fixed pulley 6 or 6.
Multiply by 7.

(2) A fixed needle 10 is inserted between the fibers constituting the multifilament yarn 1 substantially at right angles to the yarn axis direction.

(3) Fix the fixed needle 10.

(4) Load 11°1 at 2 locations of multifilament yarn 1
Attach 2.

There is no particular temporal relationship between the operations (1) to (4) above, and after the operations, the multifilament yarn 1 is loaded,
It is sufficient if the fixed needle and the load are engaged in this order.

At this point, by setting a weight difference between the load 11 and the load 12, by carefully performing the above operation, the amount of movement of the multifilament yarn 1 can be adjusted by adjusting the amount of movement of the multifilament yarn 1 between the pointer 9 attached to the fixed pulley 6 and the scale plate 8. Depending on the relative positional relationship, it can be converted into the amount of rotation of the fixed pulley 6 and measured.

Furthermore, in order to ensure accurate measurement, the following method is preferred.

That is, the weights of the loads 11 and 12 are made equal, the above operations (1) and (4) are performed, and after the objects are brought to rest, the above operations (2) and (3) are performed.

Next, perform the following operations in order.

(5) Read the position of the pointer 9 on the scale plate 8.

At this time, it is convenient to make the scale plate 8 coaxial with the fixed pulley 6 and rotatable independently, and to align the zero point of the scale plate 8 with the pointer 9.

(6) Attach the auxiliary load 13 to either one side of the load 11 or the load 12.

(7) After the movement, rotation, etc. has stopped, read the position of the pointer 9 on the scale plate 8.

Using the above device, it is possible to perform measurements equivalent to conventional methods with high accuracy.

The scale on the scale plate 8 may be a convenient scale such as a decimal scale, an angle scale, a scale converted to the amount of thread movement, or a conversion scale with operations necessary for evaluating the measured values.

Further, the amount of rotation of the fixed pulley 6 may be measured optically or electrically, in addition to being read using the scale as described above.

A second object of the present invention is to improve the precision of measurement as described above, as well as to improve the precision of measured values.

In other words, from the point where the auxiliary load 13 is attached to one side of the load 11 or the load 12 and movement, rotation, etc. stops, the auxiliary load 13 is transferred to the other load side and the point where the movement, rotation, etc. stops. Measure the amount of movement and rotation.

A third object of the present invention is to independently measure the length of the intertwined portion and the length of the unentangled portion of a multifilament yarn that is intermittently cross-drawn.

In particular, when multifilament yarns made of crimped fibers are entangled by fluid agitation treatment, the entangled portions (focused portions) and non-entangled portions (spread portions) can be distinguished with the naked eye. are formed alternately.

In other words, the length of the spread part can be measured by inserting the fixed needle 10 into the spread part, and by inserting two fixed needles into the spread parts on both sides of the converging part, one by one, the length of the spread part can be measured. The length of the focused portion can be determined by subtracting the amount of rotation from the amount of separation between the two fixed needles.

Using only one fixed needle, the fixed needle 10 is inserted into the spread part next to one of the focused parts to determine one end of the focused part, and then the fixed needle 10 is inserted into the opened part next to the other focused part. , the other end of the focusing portion is determined, and if the position of the fixed needle 10 remains unchanged, the length of the focusing portion can be measured from the amount of rotation of the fixed pulley 6 that rotated between the determination of both ends of the focusing portion. .

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a conventional device. FIGS. 2 and 3 are schematic diagrams showing an apparatus used in one implementation of the present invention. 1: Multifilament yarn, 2. lL12: Load, 3:
Frame, 4: Moving needle, 5: Needle load, 6°7: Fixed pulley, 8:
Dial plate, 9: Pointer, 10: Fixed needle, 13: Auxiliary load.

Claims (1)

[Scope of Claims] 1. An apparatus for measuring the degree of entanglement of multifilament yarn, which includes: A. A fixed needle-shaped object inserted between the fibers constituting the multifilament yarn at a substantially right angle to the yarn axis direction; B. means for applying a constant tension to the multifilament yarn; C0 means for applying a constant tension difference between the filament yarns on both sides of the fixed needle-like object to move the filament yarn; and D. the amount of movement of the filament yarn. 1. A measuring device for measuring the degree of entanglement, which is capable of expressing the degree of entanglement by measuring the length of the filament thread moving through the fixed needle under constant tension.