KR20180003154A - Apparatus for prevetning feed fault of multiple weft yarn in air zet loom and method therefor - Google Patents

Abstract

The present invention relates to an apparatus for preventing errors in insertion of multi weft yarns in air jet looms, and a method therefor, intended to prevent errors in insertion due to deviation of random strands among multi weft yarns during insertion for the multi weft yarns to insert multi weft yarns at the same time with a single shedding motion in the air jet loom. To this end, a focused joint is formed at an upper end portion of the multi weft yarn inserted in the next time prior to cutting the multi weft yarn after performing body beating motion, thereby preventing deviation during insertion rate of the random strand among the multi weft yarns. The formation of the focused joint at the upper end portion of the multi weft yarns can be achieved by entangling weft yarn by interlacing the multi weft yarns or by focusing the upper end portion of the multi weft yarns by heat fusion.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for preventing multiple warp inferior defects in an air jet loom,

The present invention relates to an air jet loom, and more particularly to an air jet loom which prevents multiple defects in multiple weft insertion in multiple weft insertion devices that allow multiple weft texture expressions or color representations, And more particularly,

In general, an air jet loom is a loom for weaving a fabric using a nozzle and a nozzle having a small amount of compressed air and holes without using a shuttle to feed weft (weft) in a direction perpendicular to the inclination. .

Weaving in an air jet loom is divided into a shedding motion which divides the incline into upper and lower parts to form an opening through which the weft can pass, a picking motion which sends out the weft through the opening formed by the opening movement, And a weaving operation by pushing the weft passed through the opening to the pel plate as a body to make the warp and the weft form a single structure.

In this weaving process, the opening motion is performed by vertically staggering the sheaves connecting a large number of slopes, thereby forming an opening through which the weft yarns can pass. Such a shearing motion causes the pair of shearing frames to move up and down in a staggered manner An opening is formed. In addition, the body stick motion is enabled because the body shaft, which receives the driving force from the driving motor, performs angular motion and the body fixed to the body shaft reciprocates constantly in the forward and backward directions.

Such an air jet loom has a single weft insertion in one opening movement, and weaving is performed. If a plurality of wefts can be put in one opening movement, various texture expressions and color expressions can be performed. And productivity of weaving can be improved.

As a representative example of a device implemented by putting a plurality of weft yarns into one opening motion and capable of expressing various textures and colors on a fabric, it is disclosed that the invention is patented and invented by the inventor of the present invention. Publication No. 10-1437507.

The prior art multi-purpose weft insertion apparatus described in Patent Registration No. 10-1437507 is a multi-purpose weft insertion apparatus which uses ripping wefts, for example, by using coarse wefts at a time to stop the ripping of the cloth, stop) It is possible to express the organization form, and by using the wefts of various colors at once, it is possible to express the geometric pattern which is created by the unspecified color, and the randomly united wefts are randomly twisted, So that a fabric having a new texture or color combination can be woven.

However, in the above-mentioned prior art, some wefts of the multiple weft yarns fall out sometimes due to the large number of weft yarns being bundled in the air jet loom, which sometimes causes weft yarn defects.

Patent Registration No. 10-1437507 entitled " Multi-Upper Arrangement Device and Method in an Air Jet Loom "

Accordingly, it is an object of the present invention to provide a multi-yarn warp failure preventing device and method for preventing an inferior warp of multiple warp yarns falling out of multiple weft yarn in- .

According to another aspect of the present invention, there is provided a multi-directional weft insertion apparatus for simultaneously causing multiple wefts to be brought in a single opening movement in an air-jet loom, comprising: at least one main nozzle for delivering weft yarns to high- And a plurality of weft inserting units for controlling the weft in accordance with the number of wefts so that the multiple wefts discharged from the one or more main nozzles can pass through the air tunnel formed in the body of the body reciprocating back and forth in accordance with the body needle movement To prevent defective insertion of multiple strands during multiple weft overrun operation, we use a weft cutter bar to form a convergence bar at the end of the multiple weft yarn that will be inserted next, And after the body needle is moved, the above-mentioned focusing kneading machine performs a pre-cutting operation using a weft cutter The following is a multiple weft wiip failure prevention device in an air jet loom, characterized in that configured to perform the focusing bars molded in multiple weft leading end to be injected at a time.

In the above-described collecting unit molding machine, it may be constituted by an interlacer having an open nozzle hole capable of inserting multiple weft yarns, or a heat-joining punch for thermally joining punching multiple weft yarns.

In addition, as a method for preventing multiple warp inferiority in an air jet loom according to the present invention, there is a method of preventing an arbitrary strand of multiple wefts from falling out of multiple warp yarns during a multiple warp in- A plurality of weft yarns are formed at the ends of the multiple weft yarns to be inserted next immediately before the multiple weft yarn cutting after the body needle movement to prevent the arbitrary yarns of multiple weft yarns from falling out during the weft yarn break. .

The present invention relates to a method and apparatus for multiple yarn weaving in which multiple weft yarn movements are simultaneously carried out in a single opening operation in an air jet loom, Forming a gathering node at the ends of the multiple weft yarns to be inserted, thereby preventing the arbitrary yarns of the multiple weft yarns from falling off during the weft yarn breakage, thereby minimizing the weft defects of the weaving yarns.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a multi-position false entry implemented in an air jet loom in accordance with an embodiment of the present invention,
FIG. 2 and FIG. 3 are a plan view showing a multiple warp inbound state including the multiple warp inbound failure prevention means of the present invention,
FIG. 4 and FIG. 5 are side structural diagrams showing a multiple warp-in-warp condition including the multiple warp-in and bad-
FIGS. 6 and 7 are perspective views showing examples in which a collecting section molding machine is installed as a multi-purpose warp failure preventing means of the present invention,
8 is a view showing a gathering node formed at the tip of multiple wefts according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic block diagram of a multi-yarn false entry in an air jet loom in accordance with an embodiment of the present invention implemented to prevent multiple warp inbound failures. FIG.

The multistage yaw entrances of the present invention shown in Fig. 1 allow multiple weft yarns 8 (hereinafter "multiple weft yarns") 22 to be simultaneously brought into contact when forming a single tilted opening in an air jet loom, By allowing the loom to weave the fabric 32, it allows rip-stop tissue morphology, geometric pattern representation of unspecified color, random irregularities on the fabric surface, (Weft) of the multiple weft yarns 22 is prevented from falling out when the weft-fed multiple weft yarns 22 pass through the inclined openings, .

1, the body 2, which reciprocates in the anteroposterior direction by the body needle movement, is provided with a number of body furs 4 An air tunnel 6 is formed on the upper part of the body fingers 4 so that the weft 8 loaded in the high-pressure air can pass through the body fingers 4.

A main nozzle 10 for spraying high pressure air for weft supply is installed at the entrance side of an air tunnel 6 formed so as to cover a large number of body fins 4, Up to eight main nozzles 10 are concentratedly installed so that a plurality of wefts 8 forming the weft yarns 22 can be simultaneously introduced.

As a modification of the present invention, the main nozzles 10 may be formed as one unit, and a plurality of wefts, that is, multiple weft yarns 22 may be supplied from one main nozzle 10.

Therefore, in the present invention, the multiple weft yarns 22 are fed from one or more main nozzles 10.

Multiple weft yarns 22 from one or more main nozzles 10 are conveyed into the high pressure air to pass through the air tunnel 6 so that the multiple weft yarns 22 are forced into the compressed air The sub nozzles 12 are arranged in the vicinity of the upper portion of the air tunnel 6. The plurality of subnozzles 12 add momentum to the wefts 8 of the multiple weft yarns 22 passing through the air tunnel 6 by sequentially injecting sub-air carriers in a sequential order. A weft sensor 9 is installed in the vicinity of the exit of the air tunnel 6 to detect whether or not the multiple weft yarns 22 of the plurality of weft yarns 8 are over the weft yarn, To the controller 24 to allow the body needle motion to occur after the upper limb under the control of the loom controller 24. [

In the multiple weft overrun device according to the present invention, the multiple weft yarns (22) having a plurality of weft yarns (8) are also fed to the compressed air up to the final arrival position, And controlling the weft in the weft direction.

The multiple weft carrier unit 16 is disclosed in Patent Registration No. 10-1437507 referred to in the prior art and its configuration and function are described in detail. Here, a brief description will be given of a case in which each weft supply high-pressure air A number of pressure reducers provided on each piping which are sent to each of the plurality of main nozzles 10 and a plurality of pressure reducers The pressure reduction rate memory stores the pressure reduction rate per air. The pressure reduction rate is controlled according to the number of wefts of 2 to 8 simultaneously introduced with reference to the pressure reduction rate memory to supply the reduced pressure high pressure air to each main nozzle Pressure ratio control unit.

When the high-pressure air whose pressure reduction rate is adjusted in accordance with the number of weft yarns is supplied by the multiple weft carrier unit 16, the air tunnel 6 formed by grasping the upper portion of the numerous body fins 4 constituting the body 2, The multiple weft yarns 22 having a plurality of wefts 8 are passed and the upper weft yarn is formed.

In Fig. 1, reference numeral 14 denotes a weft supply unit. The weft sensor 9 located at the outlet of the air tunnel 6 detects whether all the wefts 8 of the multiple weft yarns 22 inserted at the same time are properly transported .

When the weft sensor 9 senses the weft of all the wefts 8 of the multiple weft yarns 22, we provide a corresponding weft override signal to the weft yarn controller 24 so that the weft yarn controller 24 By driving the body shaft to perform the body needle motion, the body 2 is pushed to the pell plate so that the warp and the weft form a single structure.

In the present invention, the multiple weft yarn entrances are made such that multiple weft yarns (22) of multiple weft yarns (8) are brought together at the same time to form weft yarns in an air jet loom when forming an inclined opening in an air jet loom, There occurs a phenomenon that any strands (weft yarns) fall off during the course of the multiple weft yarns 22 passing through the air tunnel 6 of the body flesh 4.

In the present invention, a multi-purpose weft insertion device including multiple weft insertion failure preventing means is constituted to prevent this.

A plurality of weft yarns 22 are wound on the weft cutter 18 after the body needle movement of the body 2 in order to prevent the defective insertion of any strands in the multiple weft yarns 22 during the over- (FIG. 8) 26 is formed at the leading end of the multiple weft yarns 22 to be inserted next immediately before the multiple weft cutting by the weft cutter 20 as shown in FIG. 1, 18).

8 (a) and 8 (b), the focusing kneading machine 20 is operated under the control of the loom controller 24 and before the weft cut by the weft cutter 18, ). ≪ / RTI >

FIGS. 2 and 3 are plan views showing a multiple warp-inundation state including the multiple warp-in and bad-defeat means of the present invention. FIGS. 4 and 5 are views showing a multi- And FIG.

FIGS. 2 and 4 are views showing a state before the body needle movement after the multiple wefts 22 are inserted into the oblique opening. FIG. 3 and FIG. 5 are views showing the state before the weft cutting operation Fig.

6 and 7 are perspective views showing examples in which the collecting unit molding machine 20 is installed as the multiple warp and unwanted failure preventing means of the present invention.

6 shows an example in which the converging section molding machine 20 is constituted by an interlacer 20A having an open nozzle hole into which multiple weft yarns 22 can be inserted and FIG. And a heat-joining punch 20B for performing heat-joining punching of the weft yarn as another example.

In Figures 2 and 3, 6 and 7, reference numeral 30 is a slope in the open state and 32 is a woven fabric. 6 and 7, the gathering section molding machine 20, the weft cutter 18, and the fabric 32 are shown to be somewhat apart from each other to facilitate understanding of the drawing, but it is to be understood that they are close to the actual arrangement .

8 is a view showing a focusing node 26 formed at the tip of the multiple weft yarns 22 according to the present invention.

In the present invention as described above, under the control of the loom controller 24, an arbitrary strand of the multiple weft yarns 22 is pulled out during the upward operation of the multiple weft yarns 22, The fiducials 26 are formed by using the fiducial molding machine 20 at the leading end of the multiple weft yarns 22 to be fed into the fiducial mark forming machine 20 The weft cutter 18 adjacent to the weft cutter 18 cuts the multiple weft yarns 22 so that the bundled weft yarn 22 to be fed next has a converging weft yarn 26, Thereby preventing any strands from falling off while passing through the air tunnel 6 of the body flesh 4.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the scope of claims and equivalents thereof.

(2) - Body (4) - Body Flesh
(6) - Air tunnel (8) - Weft
(9) - Weft detector (10) - Main nozzle
(12) - Subnozzle (14) - Weft feeder
(16) - multiple weft carrier unit (18) - weft cutter
(20) - Focusing section forming section (20A) - Interlaysa
(20B) - thermally bonded punch (22) - multiple weft
(24) - Loom controller (26) - Focus node
(30) - slope (32) - fabric

Claims (6)

An apparatus for multiple weft insertion in which a plurality of wefts are brought in simultaneously by a single opening movement in an air jet loom,
An air tunnel formed in a body of a body in which multiple weft yarns of a plurality of weft yarns sent from one or more main nozzles are reciprocated in a back and forth movement in accordance with the body needle movement are provided with one or more main nozzles for delivering weft yarns to high- And a plurality of weft-in units for controlling the weft in accordance with the number of wefts so that they can be conveyed,
In order to prevent defective insertion of multiple strands during the multiple weft insertion operation, the multifilament feeder is disposed at the side of the weft cutter so as to form a convergence node at the end of the multiple weft yarn to be inserted next to the multi- Wherein the multifilament forming machine is configured to perform a multifilament forming process on the multifilament front end portion to be inserted next before the weft cutting by the weft cutter after the body stapling operation. Prevention of bad influences.
The apparatus as set forth in claim 1, wherein the collecting unit molding machine comprises an interlacer having an open nozzle hole into which multiple wefts can be inserted.
[2] The apparatus as set forth in claim 1, wherein the bundle forming machine comprises a thermally bonded punch for thermally bonding and punching multiple weft yarns.
In order to prevent the failure of the arbitrary strands of multiple wefts during the introductory operation of multiple wefts in which a plurality of wefts are brought in simultaneously by a single opening movement in the air jet loom, Wherein the plurality of weft yarns are formed at the leading ends of the multiple weft yarns to prevent the arbitrary yarns of the multiple weft yarns from falling out during the weft yarn loops.
[5] The method of claim 4, wherein the plurality of weft yarns are interlaced to form a bundle of yarn on the multiple weft yarn end portion, through weft yarn entanglement.
[5] The method of claim 4, wherein the plurality of weft yarns are formed by thermally splicing the leading ends of the plurality of weft yarns to form a plurality of weft yarns at the plurality of weft yarns.

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