JPS6155242A - Weaving method by water jet loom - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (a) Industrial Application Field The present invention relates to a weaving method using a water jet loom equipped with a weft detection device consisting of a pair of electrodes, which is attached to a reed frame on the opposite yarn feeding side. It is.

(b) Conventional technology Conventionally, water jet looms (hereinafter referred to as -, J.

As a typical weft yarn detection device for the conventional weft yarn detection device in As shown in the simplified front view of the reed end on the opposite yarn feeding side of J and L, a pair of reeds are attached to the reed frame (3) between the warp (1) on the opposite yarn feeding side and the yarn end treatment system (2). A weft yarn detection device consisting of electrodes (41, (5)) is generally used, and the weft yarn (Y) which has been inserted normally and has been wetted with water and retains conductivity is detected by the pair of electrodes (41, (5)). 5) and detects whether or not current flows between both electrodes (4) and (5) to judge whether the weft insertion is successful or not.

However, the conventional 11. By J, L, fluff such as spun yarn is added to the weft.
When weaving using a relatively large number of threads such as fluff, the following serious problems arise. That is, as shown in FIG. 3, during weft insertion, the fluff (6) touches the pair of electrodes (4),
(It gradually adheres and deposits on 51, and finally both electrodes (4)
, (5), and furthermore, each of the electrodes +4) and +5) and the electrode (4),
(5) Fly fluff (6) adheres and accumulates between the nearby reed feathers (8) and forms a bridge, and also accumulates between each reed feather (8),
Eventually, the fluff may bridge between the two electrodes (41, (51) via the reed feathers. As a result, current constantly flows between the two electrodes (41, f51) through the bridging fluff. Therefore, even if weft insertion fails, it will be incorrectly determined that the weft insertion was successful, and the weft detection function will be lost, resulting in a decrease in the quality of the fabric. , is common in spun yarns, but is particularly noticeable in the case of 100% cotton spun yarns compared to 100% spun yarns such as polyester, nylon, etc.

(c) Problems to be Solved by the Invention The present invention solves the above-mentioned problems in conventional -, J, and L weaving equipped with a weft detecting device consisting of a pair of electrodes, and Prevent the accumulation of fluff between the pair of i-poles of the detection device and always operate a stable weft detection function! ! ! The aim is to provide a method for woven fabrics.

(d) Means and action for solving the problems The present invention includes:
Attaches to the reed frame between the warp on the opposite yarn feeding side and the yarn end treatment system.
When weaving using a water jet loom equipped with a weft detection device consisting of a pair of electrodes, a thread is inserted between the pair of electrodes to perform a shedding motion similar to the shedding motion of the warp threads, and 's reed feather as sky feather! ! This is a 3A weaving method using a water jet loom.

That is, the present invention uses W, J,
As shown in the simplified front view showing one aspect of the reed end on the anti-yarn feeding side of A pair of electrodes attached parallel to the wings (8) +41. +5) of the weft detection device consisting of
A yarn (7) that moves in the same way as the shedding movement of the warp (1) is inserted between the pair of electrodes +4) and (5), and a thread (7) that moves in the same way as the shedding movement of the warp (1) is inserted between the electrodes (41, (5)) at each weft insertion. is moved up and down in conjunction with the warp shedding movement to remove fluff accumulated between the two electrodes (41, (51) to prevent bridging, and to prevent bridging between the two electrodes (41, (51).
The reed feathers (8) near the electrodes 51 are removed to leave empty feathers (9), and the areas around both electrodes (4) and (5) that cause fluff to accumulate are eliminated to make Mm. Furthermore, if the yarn (7) inserted between the two electrodes (41, (51) is guided by the yarn end treatment system (2) and advanced in the same manner as the yarn end treatment system (2), the vertical movement will cause The mis attached to the thread (η
Place both electrodes (4) again.

(5) It can be carried away without adhering to it.

According to the present invention, even when weaving using spun yarn with a large amount of fluff as the weft, a pair of electric currents m +4) of the weft yarn detection device,
15) Rj1 and Hi WJ'lam (4), (53 Toa Feather (81 (!: (D Mathe (7)) The occurrence of bridging phenomenon due to the accumulation of fluff completely disappeared, and the weft yarn detection device It operates accurately and stably, allowing fabrics of good quality to be obtained.

(e) Example 8 W, J, equipped with a weft detection device consisting of one pair of electrodes,
L, LW-41 type is used, the warp is made of nylon filament 700/34F, and the weft is made of 100% cotton 60゛S/
2, the weaving method of the present invention, in which the yarn is inserted between the electrodes and moved up and down in conjunction with the warp shedding movement, and the reed feathers near the electrodes are removed to create empty feathers, and the conventional weaving method. A cotton mixed tuff fabric (warp density: 112 threads/inch, weft thread density: 84 threads/inch) was woven at a loom rotation speed of 45 Or, p, m. Table 1 shows the weaving results for the 30 days.

As is clear from Table 1, the number of times the weft detection malfunction occurs is zero in the weaving method of the present invention. There were no weft defects in the upper fabric, and a fabric of far superior quality was obtained compared to conventional weaving methods.

(Effects of the Invention As described above, the present invention is equipped with a weft detection device consisting of a pair of electrodes.) When wefting, the space between the two electrodes is constantly cleaned and the reeds near the electrodes are cleaned by the vertical movement of the yarn inserted between the pair of electrodes, which has the same movement as the warp shedding movement. It is characterized by weaving with the feathers as empty feathers, and there is no chance that fluff will accumulate between the electrodes or between the electrode and the reed feathers, so there is no chance that fluff will accumulate between the electrodes. Such a phenomenon does not occur at all, and as a result, the weft yarn detection device operates accurately and stably during weft insertion, which greatly contributes to improving the quality of the weft yarn.

[Brief explanation of drawings]

Fig. 1 is a simplified front view of the reed end on the opposite yarn feeding side of W, J, L used in the present invention, and Fig. 2 is a simplified front view of the reed end on the opposite yarn feeding side of conventional glue, J, t:. Figures 3 and 3 are conventional beast J
FIG. 3 is an explanatory diagram showing the poor state of fluff deposited on the electrodes of the weft detection device in the case of FIG. (Y)... Weft 8 (l)... Warp, (2)... Yarn end treatment system. (3)...Reed frame, 141. (5)... Electrode, (
6)...Wind cotton.

Claims (1)

[Claims] (1) When weaving using a water jet loom equipped with a weft detection device consisting of a pair of electrodes, which is attached to the reed frame between the warp yarns on the opposite yarn feeding side and the yarn end treatment system, the gap between the pair of electrodes is A weaving method using a water jet loom, characterized in that threads are inserted through the loom to perform a movement similar to the shedding movement of the warp yarns, and the reed feathers near the electrodes are used as empty feathers for weaving.