JPH0133659Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a device for removing fluff on the side of a weft insertion device that inserts weft yarns inserted from a weft supply section into a warp opening.

BACKGROUND OF THE INVENTION In general, in shuttleless looms, fluff accumulates on the frame to which the gripper or weft guide is attached, as well as on other parts. As shown in FIG. 1, the weft Y supplied from the weft supply section 1 is continuously measured in length by a length measuring roller mechanism 2 and ejected from a storage nozzle 3 toward a storage pipe 4 and stored. When a predetermined amount of weft yarn Y is stored, the gripper 5, which opens and closes in synchronization with the rotation of the loom, is opened, and the main nozzle 7 for weft insertion on the slay 6, which swings back and forth, is opened.
The weft is ejected and inserted into a weft guide path formed by a large number of weft guide members 8 arranged in parallel. Then, the slay 6 swings in the direction of the arrow in FIG. 1, and the inserted weft yarn is driven into the woven fabric by the reed 20.

As the slay 6 swings back and forth, the weft Y between the gripper 5 and the main nozzle 7 also swings.
Frame 9 to which gripper 5 is attached due to this swinging
The fly fluff deposited on the top adheres to the same weft threads. Therefore, when the weft yarn Y is inserted, the fluff is brought into the main nozzle 7, clogging the nozzle, or being woven into the woven fabric, causing weaving flaws.

In order to solve this problem, conventionally a blowing piece 10 is attached to the frame 9 as shown in FIG. Measures have been proposed. However, since the fluff must be removed at least within the swing range of the weft yarn Y, the blowing piece 10 must be provided with a plurality of nozzle holes 10a to widen the spray range, and the amount of compressed fluid consumed is large. There is a flaw in that. Moreover, blowing piece 10
is fixed, so even when compressed fluid is continuously injected, there is a shadowed area through which the injected fluid does not pass, and fluff is likely to accumulate in this shadowed area. Furthermore, in order to reduce the consumption of compressed fluid, it is possible to intermittently inject the compressed fluid, but this requires a timer and the mechanism becomes complicated, making it impractical.

Further, the same situation applies even if blowing pieces having only one nozzle hole are arranged at a plurality of locations on the frame 9.

Purpose The present invention was developed in consideration of the above-mentioned problems, and its purpose is to prevent fluff accumulation on the weft insertion device over a wide area despite the simple mechanism, and to reduce compressed fluid consumption. It is an object of the present invention to provide a fluff removal device for a shuttleless loom, which can also reduce the amount of fluff.

Configuration In order to achieve the above object, the present invention includes a nozzle hole that injects compressed fluid in a direction opposite to the traveling direction of the weft on the side of the weft insertion device that inserts the weft supplied from the weft supply section into the warp opening. We adopted a configuration in which it is installed on a sleigh that swings back and forth.

Embodiment Hereinafter, an embodiment embodying the present invention will be described based on FIG. 2. The same parts as those in the conventional structure will be denoted by the same reference numerals, and detailed explanation thereof will be omitted.

Now, the main nozzle 7 installed on the Slay 6
The support base 11 is provided with a nozzle hole 11a, and is connected to a fluid supply source (not shown) via a supply pipe 12. The nozzle hole 11a faces in the direction opposite to the weft traveling direction, that is, toward the gripper 5, so that compressed fluid is continuously injected during the operation of the loom.

With this configuration, the nozzle hole 11a is also reciprocated by the beating action, that is, the reciprocating rocking motion of the slay 6, and the compressed fluid injected from the nozzle 11a is blown into the swinging range of the weft yarn Y shown in FIG. It will be attached. Therefore, the accumulation of fluff on the frame 9 is prevented, and the fluff does not adhere to the reciprocally swinging weft Y and be taken into the main nozzle 7, causing nozzle clogging or preventing the fluff from being woven. It will not be woven into the fabric and cause weave flaws.

In this configuration, the nozzle hole 11 for removing fluff
A wide range of fluff removal can be performed by providing only one fluff removal nozzle hole 10a, and unlike the conventional configuration in which a plurality of fluff removal nozzle holes 10a are fixedly arranged on the frame 9, compressed fluid consumption is reduced. This reduces the area that is shadowed by the compressed fluid spray.

In addition, a conventional beating mechanism is used as a mechanism for reciprocating the fluff removal nozzle hole 11a, that is, the fluff removal nozzle hole 11a is placed on the sleigh that is a part of the beating mechanism. Since this is provided, the mechanism will not become complicated.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and the nozzle hole for removing fluff may be placed at any other suitable location where it does not interfere with the progress of the weft on the slay, or it may be applied to a so-called drum length measuring loom. It is also possible to embody the present invention.

Effects As detailed above, despite its simple mechanism, the fluff removing device of the present invention can prevent fluff accumulation on the weft inserting device over a wide area, and reduce compressed fluid consumption. This has an excellent effect in that it can also be used.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part showing a conventional example, and FIG. 2 is a perspective view of a main part showing an embodiment embodying the present invention. DESCRIPTION OF SYMBOLS 1...Weft supply part, 5... Gripper, 6... Slay, 7... Main nozzle, 11a... Nozzle hole, Y... Weft.

Claims (1)

[Scope of utility model registration request] On the weft insertion device side that inserts the weft yarn supplied from the weft supply section into the weft opening, a nozzle hole that injects compressed fluid in a direction opposite to the traveling direction of the weft yarn is arranged in a reciprocating sley. This is a fluff removal device for shuttleless looms.