KR102511687B1 - Apparatus for feeding multiple weft yarn in rapier loom - Google Patents

Abstract

The present invention relates to an apparatus for feeding multiple weft yarns (2), which feeds multiple weft yarns simultaneously in a rapier loom by a single opening movement. The apparatus of the present invention comprises: a uniform density focused loop forming machine (24) which provides multiple yarn-processed weft yarns (8) by processing the focused supply multi-weft yarns (8a) supplied from a weft unwinding unit (20) such that the yarns have uniform density and are entangled to form multiple loops; and a weft feeder (28) which supplies individual wefts (6) of the weft unwinding unit (20) or the multiple yarn-processed weft yarns (8) formed by the uniform density focusing loop forming machine (24) as weft yarns to the rapier loom, wherein the uniform density focused loop forming machine (24) has a yarn-processing nozzle with a main nozzle hole where the focused supply multi-weft yarns (8a) pass, which is formed at an acute angle in the direction opposite to the straight direction of the focused supply multi-weft yarn (8a), and a plurality of reverse air flow inclined inflow holes (52) communicating with the main nozzle hole (50). A vortex airflow running counter to the direction of travel of the multi-weft yarn (8a) passing through the main nozzle hole (50) of the uniform density focused loop forming machine (24) is created to achieve uniform density and multiple loop formation processing of the processed multi-weft yarn (8) to allow extruded air (A) to flow into the reverse air flow inclined inflow hole (52). The yarn-processing pressure of the compressed air (A) is configured to become 1-6 kgf/㎠, and more preferably, 1.5-4.6 kgf/㎠, and the backdraft force (F1) applied to the multi-weft yarn (8a) by the compressed air (A) is configured to be less than the traction force (F2) of the weft feeder (28).

Description

Multi-weft weft insertion device in rapier loom {APPARATUS FOR FEEDING MULTIPLE WEFT YARN IN RAPIER LOOM}

The present invention relates to a rapier loom, in particular, a multi-weft yarn in which a plurality of weft yarns are weaved at the same time without weft weft insertion defects, enabling uniform density and loop formation without external toll processing, and various weaving texture expressions, colors and patterns. It relates to an improvement of a multi-weft weft insertion device in a rapier loom.

In general, a rapier loom is a loom that weaves fabric by moving and inserting a rapier that performs mechanical movement without using a shuttle to supply weft (weft) in a direction perpendicular to the warp. It has the advantage of being able to stably insert the weft with a small amount and reducing warp breakage, and is currently widely used like an air jet loom or a water jet loom.

Weaving on the rapier loom involves a shedding motion that divides the warp in the heald up and down to form an opening through which the weft can pass, and a weft insertion motion in which the weft is passed through the rapier through the opening formed by the opening motion, Weaving is performed by beating motion, which pushes the weft yarn passing through the opening to the pellet plate as a body so that the warp yarn and the weft yarn form a single tissue.

In this weaving process, the opening movement creates an opening for the weft thread to pass through by operating the healds connecting a large number of warp yarns in an up and down direction, and this heald moves a pair of heald frames in the upper and lower directions alternately. An opening is formed by In addition, the body acupuncture motion is possible because the body fixed to the body shaft performs an angular motion by receiving the driving force from the driving motor so that the body fixed to the body shaft reciprocates constantly in the forward and backward directions.

This rapier loom is weaved by putting one weft thread into one opening movement. If multiple weft threads can be put into one opening movement, it can express various textures and colors, so it is well received by many people. can be obtained, and weaving productivity can be improved.

An example of a device implemented to provide various texture and color expressions to a fabric by injecting a plurality of weft threads into one opening movement is Patent Registration No. 10-1437507 mentioned in the Patent Document section below.

If some of the weft yarns are dropped out of the many weft yarns introduced at once using this rapier loom, it can cause weaving defects. This problem is solved, and the supplied weft yarn can be prepared and weft weft as high-quality processed yarn without separate outsourcing processing. If so, you'll get a bigger response.

Registered Patent No. 10-1437507 "Apparatus and Method for Multiple Weft Weft Insertion in Air-Jet Loom"

Therefore, the object of the present invention is a multi-weft yarn that allows multiple weft yarns to be weaved at the same time without weaving defects, in a rapier loom that enables uniform density and loop formation without external toll processing, and enables the expression of various arrangement textures, colors, and patterns desired by the user. It is to provide a multi-weft weft insertion device.

Another object of the present invention is to provide a multi-weft weft insertion device in a rapier loom that allows multiple weft yarns to be wefted without the burden of outsourcing toll processing, having multiple loops, uniform weft density, and reducing net weight.

The present invention according to the above object is a multi-weft weft insertion device (2) for simultaneously weaving a plurality of weft yarns with one opening movement in a rapier loom, and individual weft yarns (6) unwound from a plurality of supply bobbins (12). ) to the weft unwinding unit 20 for supplying concentrated supply and individual weft yarns 6 unwound from one supply bobbin 12, and uniform throughout the focused supply multiple weft yarns 8a of the weft unwinding unit 20. A uniform density concentrated loop forming machine 24 for providing a yarn-processed multi-weft yarn 8 by yarn processing so as to form a plurality of loops having a density, and individual weft yarns 6 or uniform density focused loops of the weft unwinding unit 20 a weft feeder 28 for supplying the yarn-processed multi-weft yarn 8 formed by the forming machine 24 as weft yarn to the rapier loom;

The uniform density focused loop forming machine 24 is a yarn processing nozzle having a main nozzle hole 50 through which the focused supply multiple weft yarns 8a pass, and forms an acute angle in the direction opposite to the straight direction of the focused supply multiple weft yarns 8a. and has a plurality of reverse air flow inclined inlet holes 52 communicated with the main nozzle hole 50, and a uniform density focused loop forming machine 24 to enable uniform density and loop forming processing of the processed multi-weft yarn 8 ), the extruded air (A) is introduced into the reverse airflow inclined inlet hole 52 so that a vortex airflow that runs counter to the direction of travel of the multi-weft yarn 8a passing through the main nozzle hole 50 is created, compressed air The yarn processing pressure of (A) is configured to be 1 kgf / cm 2 ~ 6 kgf / cm 2, and the counterair force (F1) applied to the multi-weft yarn (8a) by the compressed air (A) is the traction force (F2) of the weft feeder (28) ) It is characterized in that it is configured to form less than.

In addition, in the multi-weft weft insertion device in the rapier loom of the present invention, the yarn processing pressure of compressed air (A) is configured to be 1.5 kgf / cm 2 ~ 4.6 kgf / cm 2 among 1 kgf / cm 2 ~ 6 kgf / cm 2 Characterized in that do.

In addition, in the multi-weft weft insertion device 2 in the rapier loom of the present invention, the yarn of the pressure air (A) in the multi-weft yarn 8a introduced into the main nozzle hole 50 of the uniform density focused loop forming machine 24 The number of weft mouths of the multi-weft yarn (8a) suitable for the processing pressure range is 2 to 8, the number of filaments in each weft (6) of the multi-weft yarn (8a) is 30 to 200, each weft of the multi-weft yarn (8a) The thickness value of (6) is characterized in that it consists of 70 to 600 denier.

In addition, in the multi-weft weft insertion device 2 in the rapier loom of the present invention, the weft control unit controls the detailed yarn processing pressure value of the compressed air (A) within the pressure range of 1 kgf / cm 2 to 6 kgf / cm 2 of the compressed air (A) (36) and a yarn processing detailed pressure setting memory (M), but in the yarn processing detailed pressure setting memory (M), the number of weft wefts of the multi-weft yarn (8a), each weft yarn (6) of the multi-weft yarn (8a) It is characterized in that the detailed pressure range value corresponding to the number of filaments and the thickness value (denier) of each weft yarn 6 constituting the multi-weft yarn 8a is mapped.

In addition, in the multi-weft weft insertion device 2 in the rapier loom of the present invention, a weft control unit 36 and a user interface and a yarn processing input unit 38 for selecting or inputting required input values for multi-weft configuration variables are provided, The weft control unit 36 determines the detailed pressure range value within the milling pressure range of 1kgf/cm2 to 6kgf/cm2 of the compressed air (A) based on the pressure setting memory (M) according to the requested input value through the milling input unit 38. It is characterized in that it is configured to set.

In addition, according to another aspect of the multi-weft weft insertion device 2 in the rapier loom of the present invention, the weft control unit 36 is manually set within the yarn processing pressure range of 1 kgf / cm 2 to 6 kgf / cm 2 of compressed air (A) And it is characterized in that it is configured to be variable.

The present invention, as a multi-weft weft insertion device, has the advantage of simultaneously weaving a plurality of weft yarns without weaving defects, providing a multi-weft yarn having uniform density and multiple loops, and enabling the multi-weft yarn to express various textures, colors, and patterns. There is an advantage in that multiple weft yarns have uniform weft density and can be implemented to reduce net weight without burdening the cost of outsourcing processing.

1 is an overall schematic configuration diagram of a rapier loom including a multi-weft weft insertion device according to an embodiment of the present invention;
2 is a specific configuration diagram of a multi-weft weft insertion device for weaving by weaving a plurality of weft yarns of FIG. 1 into one yarn-processing multi-weft yarn having frequent loops and uniform density;
3 is a perspective cross-sectional view of a main part of a uniform density convergent loop forming machine for preparing yarn-processed multi-weft yarns of the present invention;
4 is a cross-sectional configuration diagram of the uniform density focused loop forming machine of FIG. 3;
5 is a schematic cross-sectional view of a yarn-processed multi-weft yarn having a uniform density according to an embodiment of the present invention.

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

1 is an overall schematic configuration diagram of a rapier loom including a multi-weft weft insertion device 2 according to an embodiment of the present invention, and FIG. 2 is a process of processing multiple weft yarns 6 of FIG. 1 with frequent loops and uniform density. It is a specific configuration of the multi-weft weft insertion device 2 for weaving by weaving with the multi-weft yarn 8.

The multi-weft weft insertion device 2 of the rapier loom according to the present invention shown in FIGS. 1 and 2 allows a plurality of weft yarns 6 to be provided with yarn processing multi-weft yarns 8 having uniform density and frequent loop formation, When the slant opening is formed once in the rapier loom, the rapier 4 weaves the yarn-processed multi-weft yarn 8 so that the rapier loom can weave the fabric 10. By doing so, the present invention uses the multi-weft weft insertion device 2 to form uniform density and multiple loops without toll processing by the outer circumference to give a yarn processing effect like a similar spun yarn, as well as various texture and color expressions. It enables.

Accordingly, the fabric 10 woven by the rapier loom has a light weight compared to its volume due to the input of the yarn-processed multi-weft yarn 8 and expresses new textures, shapes, and various colors. And, according to the present invention, the weft multi-weft yarn 8, which is weft-weaved, is entangled due to the entanglement characteristics of the weft yarns of the weft yarn 8 even while passing through the inclined opening by the rapier 4. to prevent this

In the rapier loom, the rapier (4) is a means of carrying the weft to the opposite side while holding the weft on one side and moving in the width direction of the fabric. Depending on the method, one carrier carries the weft from one side to the other A method in which a carrier and a gripper simultaneously enter the warp opening on the left and right sides of the loom, take the weft at the center of the warp opening, and pass the carrier to the gripper on the opposite side, and then insert the weft into the warp opening as it comes out of the warp opening. am.

In the present invention, in implementing the multi-weft weft insertion device 2, while implementing so that any weft yarn among the supplied multi-weft yarns 8 does not fall off, the multi-weft yarn 8 is yarn-processed with reverse airflow compressed air. By forming a plurality of loops as a whole on the processed multi-weft yarn 8 and forming a uniform density, even the toll processing effect by the outer circumference is given.

Specifically, the multi-weft weft inserting device 2 of the present invention has a uniform density throughout the weft to be weft and carries tangled multi-weft yarns 8 or individual weft yarns 6 so that frequent loops are formed As a guide unit that transmits to the unit (which is rapier 4),

A weft unwinding unit 20 for centrally supplying individual weft threads 6 unwound from a plurality of supply bobbins 12 and supplying individual weft threads 6 unwound from one supply bobbin 12;

A uniform density focused loop forming machine (24) for providing a yarn-processed multi-weft yarn (8) by yarn-processing the concentrated-supply multi-weft yarn (8a) of the weft unwinding unit (20) so that it has a uniform density throughout and is entangled to form a plurality of loops. )and,

The yarn-processed multi-weft yarn 8 or the individual weft yarn 6 processed by the uniform-density focused loop forming machine 24 is supplied as weft yarn to the rapier loom, and the weft-feeding drum 28b and the weft-feeding drum 28b are driven. A weft feeder 28 composed of a drive motor 28a for making;

A position where the rapier (4) can pick up the yarn multi-weft yarn (8) or the individual weft yarn (6) by selecting one of the yarn multi-weft yarns (8) and the individual weft yarn (6) of the individual supply bobbin (12). It includes a weft selector 42 that guides to be transferred to.

In the present invention, it is possible to directly prepare the yarn processed multi-weft yarn 8 with uniform density and frequent loop formation through the uniform density focused loop forming machine 24 of the multi-weft weft insertion device 2 without separate outer toll processing. The weight is relatively low for the same volume of plywood, so raw material requirements are reduced (usually raw material costs are calculated in units of weight).

3 is a cross-sectional perspective view of the main part of the uniform density and concentrated loop forming machine 24 for preparing the yarn processed multi-weft yarn 8 of the present invention, and FIG. 4 is a cross-sectional view of the uniform density and concentrated loop forming machine 24 of FIG. am.

As shown in FIGS. 3 and 4, the uniform density focused loop forming machine 24 of the present invention is a yarn processing nozzle having a main nozzle hole 50 through which the focused feed multiple wefts 8a pass, and the focussed feed multiple wefts 8a It is formed with an acute angle inclination in the direction opposite to the straight direction of and has a plurality of reverse air flow inclined inlet holes 52 communicating with the main nozzle hole 50.

When the compressed air (A) is continuously supplied to the plurality of weft yarns (6) disposed in the main nozzle hole (50) through the plurality of reverse airflow inclined inlet holes (52) of the uniform density focused loop forming machine (24), multiple weft yarns (8a) ) is applied to the multiple weft yarns 8a so that the weft yarns 6 are entangled with each other to form a plurality of irregular loops and have a uniform density. This loop shows an effect similar to the hair of the spun yarn, giving the filament yarn a very similar effect to the spun yarn in terms of feel, appearance, and physical properties. It is a form that is given to have a uniform density throughout the yarn-processed multi-weft yarn (8) by forming a loop well.

5 shows a schematic cross-sectional configuration of a yarn-processed multi-weft yarn 8 having uniform density and multiple loops according to an embodiment of the present invention.

Referring to FIG. 5, in the yarn-processed multi-weft yarn 8 of the present invention, while the plurality of weft yarns 6 of the concentrated multi-weft yarn 8a introduced into the uniform density focused loop forming machine 24 are entangled in the counter air flow in the weft direction, It is a configuration in which many irregular loops are formed and have a uniform density throughout the yarn-processed multi-weft yarn (8).

Referring back to FIGS. 1 and 2, an air hose 34 is connected to the reverse air flow inclined inlet hole 52 of the uniform density focused loop forming machine 24, and the air hose 34 is connected to the pressure reducing regulator 32. It is connected to the air compressor 30 as a medium. The compressed air (A) generated by the air compressor 30 is decompressed and controlled by the pressure regulator 32 .

In the pressure reducing regulator 32 of the present invention, the multi-weft yarn 8a passing through the main nozzle hole 50 of the uniform density focused loop forming machine 24 so that the uniform density of the processed multi-weft yarn 8 and the loop forming process can be performed well Compressed air (A) is introduced into the reverse airflow inclined inlet hole 52 so that a vortex airflow that runs counter to the direction of travel is created. / cm 2 ~ 6 kgf / cm 2, preferably configured to be 1.5 kgf / cm 2 ~ 4.6 kgf / cm 2.

According to the present invention, when the sanding pressure of the compressed air (A) exceeds 6 kgf / cm 2 in the range of 1 kgf / cm 2 ~ 6 kgf / cm 2 of the compressed air (A) applied to the uniform density focused loop molding machine 24 Not only does the frequency of loop processing formation of the processed multi-weft yarn (8) increase any more, but it also increases the traction load of the weft feeder (28) in the traveling direction of the multi-weft yarn (8), which may cause problems in the feeding operation, and the air compressor ( 30) has the disadvantage of lowering price competitiveness due to the increased capacity. In addition, maintaining the yarn processing pressure of the compressed air (A) at 6 kgf / cm 2 or less means that the counterair force (F1) applied to the multi-weft yarn (8) by the compressed air (A) is the traction force (F2) of the weft feeder (28) ) is configured to form less than .

In addition, if the yarn processing pressure of the compressed air (A) is less than 1 kgf / cm2 in the yarn processing pressure range of 1 kgf / cm 2 ~ 6 kgf / cm 2 of the yarn processed compressed air (A), the loop processing of the processed multi-weft yarn 8 is not well There is a problem in forming uniform density, and there is a critical significance for the working pressure range (1 kgf/cm 2 to 6 kgf/cm 2 ) of the compressed air (A).

In addition, in the present invention, the detailed yarn processing pressure range within the yarn processing pressure range of 1 kgf / cm 2 ~ 6 kgf / cm 2 of the compressed air (A) is the number of weft wefts of the multi-weft yarn (8a), within each weft yarn (6) of the multi-weft yarn (8a) It varies depending on the number of filaments and the thickness value (denier) of each weft yarn 6 constituting the multi-weft yarn 8a. In addition, in order to make the various texture expressions, colors and patterns expressed by the manufacturer longer even under the same weft configuration conditions, a low It can be changed to the value side, and in order to make the expression diverse, it can be changed to the high value side in the detailed machining input range within the machining pressure range of 1 kgf / cm 2 ~ 6 kgf / cm 2 of compressed air (A).

According to the present invention, the number of weft mouths of the multi-weft yarn (8a) suitable for the yarn processing pressure range [1kgf / cm 2 ~ 6 kgf / cm 2] of the pressure air (A) is 2 to 8, and each weft of the multi-weft yarn (8) ( 6) The number of filaments is 30 to 200, and the thickness of each weft (6) of the multi-weft (8a) is 70 to 600 denier. It is preferable to include polyester yarn and low melting yarn as the weft yarn material of the multi weft yarn 8a, which is easy to form frequent loops and form uniform density.

In the present invention, in the pressure range of compressed air (A) 1kgf / cm 2 ~ 6 kgf / cm 2 (preferably within 1.5 kgf / cm 2 ~ 4.6 kgf / cm 2) Weighing control unit for controlling the detailed machining pressure value of compressed air (A) (36), and a detailed processing pressure setting memory (M) is also provided. In the yarn processing detailed pressure setting memory M under the control of the weft insertion control unit 36, the number of weft wefts of the multi-weft yarn 8a, the number of filaments in each weft yarn 6 of the multi-weft yarn 8a, and the multi-weft yarn 8a A detailed pressure range value corresponding to the thickness value (denier) of each constituting weft yarn 6 is mapped.

In addition, the present invention has a weft input control unit 36 and a yarn processing input unit 38 that interfaces with the user, and through the yarn processing input unit 38, input values for multiple weft yarn configuration variables can be selected or input. In the weft control unit 36, according to the user's request through the processing input unit 38, based on the pressure setting memory (M), the processing pressure range of compressed air (A) is within 1 kgf / cm 2 ~ 6 kgf / cm 2 (preferably Set the appropriate detailed pressure range value within 1.5kgf/cm2 ~ 4.6kgf/cm2).

In addition, the weft control unit 36 manually sets and A variable configuration is possible.

Meanwhile, the input/output feed rate of the uniform density focused loop forming machine 24 of the present invention is not over-feeded and maintained the same despite sand processing. This is because the effect of overfeed is expressed by the counterairflow action force (F1) applied to the multi-weft yarn (8) despite having the same feed rate in the present invention.

In FIGS. 1 and 2, unexplained reference numerals "22" yarn guides and "40" denote guiding yarns.

In the above-described multi-weft weft insertion device 2 of the present invention, a plurality of weft yarns 6 are simultaneously wefted without wefting defects, and a processed multi-weft yarn 8 having a uniform density and a plurality of loops is prepared, and the processed multi-weft yarn 8 It enables the expression of various textures, colors and patterns. In addition, in the present invention, multiple weft yarns have a uniform weft density and are implemented to reduce the actual weight without burdening the cost of outsourcing processing.

In the above description of the present invention, specific embodiments have been described, but various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be determined by the described embodiments, but by the claims and their equivalents.

(2)-- Multi-weft weft insertion device (4)-- Rapier
(6)--Individual weft yarn (8)--Straight multi-weft yarn
(10)-- Fabric (12)-- Feed bobbin
(20)--weft take-out unit (22)(26)--yarn guide
(24)--Concentrated Loop Forming Machine with Uniform Density (28)-- Weft feeder
(28a)--feed motor (28b)--weft feeding drum
(30)-- Air compressor (32)- Pressure regulator
(34)--air hose (36)--weighing control unit
(38)-- Saga-gong input part (40)-- Guidance apostolic part
(42)-- Weft selector (50)-- Main nozzle ball
(52)-- counter air flow inclined inlet hole
(M)--Detail pressure setting memory for sand processing (A)--Compressed air
(F1)-- Counterair flow force (F2)-- Weft feeder traction force

Claims (6)

In the multi-weft weft insertion device that simultaneously weaves a plurality of weft yarns with one opening movement in a rapier loom,
A weft unwinding unit 20 for centrally supplying individual weft threads 6 unwound from a plurality of supply bobbins 12 and supplying individual weft threads 6 unwound from one supply bobbin 12;
A uniform density focused loop forming machine (24) for providing a multi-processed multi-weft yarn (8) by yarn processing to have a uniform density throughout the concentrated supply multi-weft yarn (8a) of the weft unwinding unit (20) and to be entangled to form a plurality of loops. and,
A weft feeder 28 for supplying the individual wefts 6 of the weft unwinding unit 20 or the yarn-processed multi-weft yarns 8 formed by the uniform density focused loop forming machine 24 as weft yarns to the rapier loom;
In order to control the detailed machining pressure value of the compressed air (A) within the pressure range of 1 kgf / cm 2 to 6 kgf / cm 2 of the compressed air (A), a weft control unit 36 and a detailed machining pressure setting memory (M) are provided,
In the yarn processing detailed pressure setting memory (M), the number of weft wefts of the multi-weft yarn (8a), the number of filaments in each weft yarn (6) of the multi-weft yarn (8a), and the thickness of each weft yarn (6) constituting the multi-weft yarn (8a) The detailed pressure range value corresponding to the value (denier) is configured to be mapped,
The uniform density focused loop forming machine 24,
As a yarn processing nozzle having a main nozzle hole 50 through which the focused supply multiple weft yarns 8a pass, an acute angle inclination is formed in the direction opposite to the straight direction of the focused supply multiple weft yarns 8a and communicated with the main nozzle hole 50 It has a plurality of reverse air flow inclined inlet holes 52, and passes through the main nozzle hole 50 of the uniform density focused loop forming machine 24 so that the processed multi-weft yarn 8 can be processed with uniform density and loop formation. The extruded air (A) is introduced into the reverse air flow inclined inlet hole 52 so that a vortex air flow that runs counter to the direction of travel of the multi-weft yarn (8a) is created, so that the yarn processing pressure of the compressed air (A) is 1 kgf/ It is configured to be cm 2 ~ 6 kgf / cm 2, and the reverse airflow action force (F1) applied to the multi-weft yarn (8a) by the compressed air (A) is formed to be less than the traction force (F2) of the weft feeder 28 Characterized in that Multi-weft weft insertion device in a rapier loom.
The method of claim 1, wherein the yarn processing pressure of the compressed air (A) is 1.5 kgf / cm 2 ~ 4.6 kgf / cm 2 among 1 kgf / cm 2 ~ 6 kgf / cm 2 Multi weft weft insertion device in the rapier loom, characterized in that .
According to claim 1 or 2, in the multi-weft yarn (8a) injected into the main nozzle hole (50) of the uniform density focused loop forming machine (24), the multi-weft yarn (8a) suitable for the yarn processing pressure range of the pressure air (A) ), the number of weft wefts is 2 to 8, the number of filaments in each weft (6) of the multi-weft (8a) is 30 to 200, and the thickness of each weft (6) of the multi-weft (8a) is 70 to Multi-weft weft insertion device on a rapier loom, characterized in that composed of 600 denier.
delete The method of claim 1, and a weft input control unit 36 and a user interface and a slicing input unit 38 for selecting or inputting requested input values for multi-weft yarn configuration variables,
The weft control unit 36 determines the detailed pressure range value within the milling pressure range of 1kgf/cm2 to 6kgf/cm2 of the compressed air (A) based on the pressure setting memory (M) according to the requested input value through the milling input unit 38. Multi-weft weft insertion device in the rapier loom, characterized in that configured to set.
The multi-weft yarn in a rapier loom according to claim 1, wherein the weft control unit 36 is configured to be manually set and varied within a yarn processing pressure range of 1 kgf / cm 2 to 6 kgf / cm 2 of compressed air (A) intrusion device.

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