JPH05156552A - Weft-treating method for fragment loom and apparatus therefor - Google Patents

Abstract

PURPOSE:To prevent the contamination of peripheral parts and woven fabric by instantaneously removing cut powder generated by the cutting of weft with a cutter. CONSTITUTION:Cut powder generated by the cutting of weft 3 is removed or blown off at the downstream side of a cutter 8 for cutting the weft 3 between a leno selvedge 2 and a trimmed selvedge 7 at the side opposite to the yarn- feeding side of a fragment loom.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weft processing method for a fragment loom such as an air jet loom and an apparatus used for the method.

[0002]

2. Description of the Related Art In a fragment loom such as an air jet loom, a water jet loom, a rapier loom, etc.
As shown in (Air jet loom), the plucking selvages 2 are formed by weaving the warp yarns 1 at both edges so that the yarns are not unraveled at the left and right edges of the woven fabric P. Further, a weft filler 4 for confirming whether or not the weft 3 is reliably driven is provided on the opposite side of the weft yarn 3 to the outside of the portion forming the twisting selvage 2, and the weft filler 4 A holding device 5 for sucking and holding the yarn end of the weft 3 that has passed through the weft filler 4 is provided on the outside. The yarn end portion of the weft yarn 3 held by the holding device 5 is entangled with the weft yarn processing yarn 6 supplied from the outside of the warp yarn 1 to form a throwing selvage 7, and then a cutter 8 in sequence. Therefore, the twisting ear 2 is cut off. Reference numeral 9 denotes a guide roller that pulls out the cut away selvage 7 to the outside of the woven material P and removes it.

[0003]

However, when the excess portion of the weft yarn 3 is cut by the cutter 8 as described above,
There is a problem that cutting powder is generated from the weft yarn 1 at the time of cutting, and the periphery is contaminated. In particular, when glass fibers are used as the weft yarn 3, several hundred filaments of glass fibers are bundled with a binder (a sizing agent). Therefore, filament powder or binder powder is generated during cutting, A part thereof adheres to the end of the woven fabric, or accumulates and adheres to the cutter 8, the winding roller 10, the surfs roller (not shown) and the like. If the cut powder is left to accumulate, it is not preferable because the cutter 8 may be difficult to cut or the woven material may be soiled. Also, if the cut powder accumulates on the elastic material such as rubber wound around each roller or the felt-based napped material, the roller diameters will gradually differ between the non-feeding side and the yarn feeding side, which will affect the fabric. There is a problem in that the tension becomes different between the left and right, which causes poor texture.

The present invention has been made in view of the above circumstances, and an object thereof is to immediately remove the cutting powder generated by cutting the cutter so that the peripheral parts and the woven fabric are not contaminated.

[0005]

In order to achieve the above object, the present invention, when weaving using a fragment loom, forms a knurled ear on the cloth end on the anti-feeding side and throws away the selvage on the outside. In the weft processing method in which the weft yarn is cut between the twisting selvage and the discarding selvage with a cutter to remove the discarding selvage from the twisting selvage, a cut that occurs during weft cutting on the downstream side of the cutter. The first gist of the present invention is a weft processing method in which powder is removed by suction or blown away, and a mop selvage forming means is provided on the anti-feeding side of a fragment loom to form a mop selvage on the cloth edge side, A throwing edge forming means provided on the outside to form a throwing edge, and a cutter provided between the twisting edge and the discarding ear to cut the weft thread therebetween, and a suction nozzle or a suction nozzle near the downstream side of the cutter. The morphism and are weft processing apparatus summer as Katsuhito powder produced during weft by the nozzle is provided above cutter is sucked and removed or blown removing the second aspect.

[0006]

That is, the present inventor has conducted a series of researches on a method for surely removing the cutting powder generated by cutting the end portion of the weft. As a result, I modified the cutter,
Or, instead of changing the cutting method, it was found that an excellent effect can be obtained simply by forcibly removing or blowing off the cut powder immediately after cutting the cutter,
The present invention has been reached.

Next, the present invention will be described in detail based on examples.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a plan view showing an essential part of an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA '. This device is similar to the weft processing device (see FIG. 6) provided in an ordinary fragment loom, and the warp yarn 1 is also applied to the left and right edges of the woven fabric P.
The weaving ears 2 are formed even by weaving, and the weft-treated yarn 6 is supplied to the outside of the formation portion of the weaving ears 2 to entangle the ends of the wefts 3 to form the discarding ears 7. The cutter 8 is also designed to be cut from the end of the barb 2 and pulled out and removed via the guide roller 9. In this device, the saxion nozzle 1 that is open diagonally below the cutter 8 and directly below the cutter 8 is opened.
0 is provided, and the suction operation is performed as indicated by the arrow while the loom is operating.

According to this apparatus, the cutting powder generated when the weft 3 is cut by the cutter 8 can be sucked and removed from the opening 10a of the suction nozzle 10,
The cut powder does not adhere to the woven fabric P, nor does it accumulate and adhere to the blade of the cutter 8 and the peripheral rollers. Therefore, the woven material P is not contaminated and the cutting ability of the cutter 8 is not deteriorated. Also, conventionally, only the non-feeding side such as the take-up roller and the surf-s-roller is
Gradual accumulation of cutting powder gradually increases the diameter and the tension on the fabric becomes unbalanced on the left and right, resulting in weaving failure.However, this device does not cause such imbalance of tension, and weaving does not occur. The quality of the dough is not deteriorated.

By the way, when the effect of the cut powder was examined when weaving was performed using the above apparatus and when weaving was performed without using the above apparatus, the following results were obtained.

[0011]

From the above results, according to the device of the present invention,
It has been found that the amount of cut powder adhered can be greatly reduced and the left and right pressure balances of the press roller can be kept uniform.

The opening 1 of the suction nozzle 10
The shape of 0a may be a round shape as shown in FIG. 3 (a) or a shape which is slightly crushed in the horizontal direction as shown in FIG. 3 (b).

Further, in the above embodiment, the opening 10a of the suction nozzle 10 is arranged right below the cutter 8 and laterally. However, the direction of the opening 10a is not limited as long as the cutting powder can be sucked. There is no problem even if it is in any direction. For example, as shown in FIG. 4, the woven cloth P may be arranged so as to face upward.

Then, as described above, the opening 10a faces upward.
When arranging, the mounting position of the suction pipe 10 is raised above that in FIG.
May be set so as to contact the end of the woven fabric P from below. By doing so, when the woven cloth P is brought into sliding contact with the opening 10a, the cutting powder attached to the cloth P is opened in the opening 10a.
Since it is scraped off at the edge portion of, the cut powder can be removed by suction more reliably. In this case, in order to enhance the effect of cutting off the cut powder, a plurality of rubbing rods 11 are provided in the opening 10a of the saxion pipe 10 in parallel with the direction of the weft thread 3, as shown in FIG. You can also do it.

Further, in the above embodiment, the cut powder is sucked and removed from the lower side, but as shown in FIG. 5, the air nozzle 12 is provided from the upper side to the lower side.
Alternatively, the cut powder may be blown off and removed by injecting air at a high pressure downward from. However, since it is not possible to completely eliminate the contamination of the peripheral parts by just blowing it away, a suction pipe 13 for suction is arranged immediately below the air nozzle 12 as shown by the chain line to blow away the cut powder. By sucking this from the lower side, the cut powder can be reliably removed.

[0017]

As described above, according to the present invention, in the fragment loom, a suction nozzle or an injection nozzle is provided in the vicinity of the downstream side of the cutter on the non-feeding side so that the cutting powder generated during the weft cutting is immediately sucked or removed. It is designed to be blown off and removed. Therefore, according to the present invention, the cut powder does not adhere to the woven fabric, does not deposit and adhere to the cutter blade or the peripheral rollers, etc., which may result in contamination of the woven fabric or reduction in the sharpness of the cutter. Absent. Further, conventionally, only on the non-feeding side such as the take-up roller and the surf roll, the diameter gradually increases due to the accumulation of the cutting powder, and the tension applied to the fabric becomes unbalanced on the left and right, and the weaving failure is likely to occur. However, according to the present invention, such an imbalance in tension does not occur, the life of each roller is extended, and the quality of the woven fabric is maintained.

[Brief description of drawings]

FIG. 1 is a plan view showing a main part of an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line AA ′ in FIG.

FIG. 3A is an explanatory view showing an opening shape of a suction nozzle used in the above embodiment, and FIGS. 3B and 3C are explanatory views showing a modification thereof.

FIG. 4 is an explanatory view of a modified example of the attachment mode of the suction nozzle.

FIG. 5 is a cross-sectional view showing the main parts of another embodiment of the present invention.

FIG. 6 is an explanatory view of a conventional weft processing device.

[Explanation of symbols]

 1 Modding thread 2 Mopping ear 3 Weft thread 6 Weft processing thread 7 Discarding ear 8 Cutter 10 Suction nozzle 12 Air nozzle

Claims (2)

[Claims] 1. When weaving using a fragment loom, a crease is formed on the cloth edge on the anti-feeding side and a discard ear is formed on the outside thereof, and a weft thread is formed between the crease and the discard ear. In the weft processing method of cutting with a cutter and removing the discarded selvage from the selvage, the cutting powder generated during weft cutting is removed by suction or blown off on the downstream side of the cutter. Weft processing method for fragment loom. 2. A mop ear forming means which is provided on the non-feeding side of the fragment loom and forms a mop ear on the cloth end side, a waste ear forming means which forms a waste ear on the outside of the mop ear, and the mop ear. Equipped with a cutter for cutting the weft yarn between this and the selvage, and a suction nozzle or an injection nozzle is provided in the vicinity of the downstream side of the cutter, and the cut powder generated when the weft yarn is cut by the cutter is removed by suction or blown away. A weft processing device, which is characterized in that