阅读说明：本技术 一种用于纬纱束编织的剑杆织机及其操作方法 (Rapier loom for weft yarn bundle weaving and operation method thereof ) 是由 朱惠忠 于 2019-12-02 设计创作，主要内容包括：本发明公开了一种用于纬纱束编织的剑杆织机,包括机架、开口机构、引纬机构、打纬机构、送经机构和卷取机构,接纬剑包括：通过挠性剑带与接纬传剑机构联动的剑头座；架设于剑头座上的接纬剑头,该接纬剑头与剑头座铰接配合；用于驱动接纬剑头上钩尖部位向上摆动的复位弹簧；用于限制接纬剑头上钩尖部位向上摆动时的角度的限位件。本发明可以一次将至少2根以上纬纱送入梭口,而且送入后能保证送纬剑头和接纬剑头间的顺利交接,然后通过打纬机构形成在纬纱方向具有多根纬纱的织物,而该织物在纬纱束中可以掺入不同颜色的纬纱,从而提高纬纱方向的美观度,同时提高纬纱方向的织物强度。本发明还包括一种剑杆织机的操作方法。(The invention discloses a rapier loom for weaving weft yarn bundles, which comprises a frame, an opening mechanism, a weft insertion mechanism, a beating-up mechanism, a let-off mechanism and a winding mechanism, wherein a weft receiving rapier comprises: a rapier head seat linked with the weft connecting rapier conveying mechanism through a flexible rapier band; the weft receiving rapier head is erected on the rapier head seat and is in hinged fit with the rapier head seat; a reset spring for driving the hook tip part on the weft receiving rapier head to swing upwards; and the limiting part is used for limiting the angle when the hook tip part on the weft receiving rapier head swings upwards. The invention can send at least more than 2 wefts into the shed at one time, can ensure the smooth connection between the weft feeding rapier head and the weft receiving rapier head after being sent, and then forms a fabric with a plurality of wefts in the weft direction through the beating-up mechanism, and the fabric can be mixed with wefts with different colors in the weft bundle, thereby improving the aesthetic degree of the weft direction and simultaneously improving the fabric strength in the weft direction. The invention also comprises an operation method of the rapier loom.)

1. The utility model provides a rapier weaving machine for weft yarn bundle is woven, includes the frame, and installs shedding mechanism, weft insertion mechanism, beating-up mechanism, warp let-off mechanism and the coiling mechanism in the frame, weft insertion mechanism includes the weft insertion sword, installs in the weft feeding yarn clamping piece of weft insertion sword side, with weft insertion sword matched with weft insertion sword rapier conveying rapier weaving mechanism, with weft insertion sword matched with weft insertion sword weft insertion rapier weaving mechanism, flexible sword area, sword wheel, guider and rapier forming mechanism, characterized by, the weft insertion sword includes:

a rapier head seat linked with the weft connecting rapier conveying mechanism through a flexible rapier band;

the weft receiving rapier head is erected on the rapier head seat and corresponds to the position of the weft feeding rapier, the weft receiving rapier head is hinged and matched with the rapier head seat, and the hook tip part of the weft receiving rapier head can swing up and down around a hinge center;

a reset spring for driving the hook tip part on the weft receiving rapier head to swing upwards;

and the limiting part is used for limiting the angle of the hook tip part on the weft receiving rapier head during upward swinging so as to ensure that the hook tip part on the weft receiving rapier head is matched with the weft feeding rapier.

2. The rapier loom for weft yarn bundle weaving according to claim 1, characterized in that: the weft receiving rapier head comprises a strip-shaped weft receiving rapier body, the weft receiving rapier body comprises a front end matched with the weft feeding rapier and a rear end matched with the rapier opening mechanism, and the front end of the weft receiving rapier body is provided with a hook head used for receiving weft yarns transmitted by the weft feeding rapier;

the front end of the weft receiving sword body is also provided with an anti-hooking barrier strip, the anti-hooking barrier strip is positioned above the hook head and extends from the rear end to the front end direction, and an opening for weft yarns to enter the hook head is reserved between the anti-hooking barrier strip and the hook head.

3. The rapier loom for weaving weft yarn bundles according to claim 2, wherein a spring holder fixed with the rapier head seat is further erected above the front end of the weft receiving rapier body, and one end of a return spring is fixedly connected with the spring holder and the other end of the return spring is fixedly connected with the front end of the weft receiving rapier body so as to drive the hook head to swing upwards around the hinge joint;

the limiting part is positioned above the front end of the weft receiving rapier body and is fixed with the rapier head seat, and the bottom of the limiting part is abutted against the upper surface of the front end of the weft receiving rapier body so as to limit the angle of the hook head swinging upwards around the hinged part.

4. A rapier weaving machine for weft bundle weaving according to claim 3, characterized in that: the weft insertion rapier comprises a weft insertion rapier head, wherein a roller is hinged to the side of the weft insertion rapier head, and a guide groove which is arranged along the circumferential direction of the roller and is used for accommodating weft yarns during weft insertion is formed in the rim of the roller.

5. The rapier loom for weft yarn bundle weaving according to claim 1, characterized in that: the rapier weaving machine comprises:

the main shaft is fixed with a swing frame crank;

the swing frame is hinged on the rack, and the weft receiving rapier and the rapier wheel are both arranged on the swing frame;

the hand pulling device is used for connecting the swing frame crank and the swing frame, and two ends of the hand pulling device are respectively hinged and matched with the swing frame crank and the swing frame;

the rapier opening mechanism is a rapier opening plate which is fixed on the rack and arranged towards the side where the swing frame is located, the weft receiving rapier reciprocates back and forth on the swing frame and moves close to or away from the rapier opening plate along with the swing of the swing frame, and therefore the rapier opening plate intermittently pushes the rear end of the weft receiving rapier body to drive the hook head of the weft receiving rapier body to swing downwards around the hinged position and release weft yarns.

6. The rapier loom for weaving weft yarn bundles according to claim 5, wherein a rapier opening roller is provided at a rear end of said weft receiving rapier body to be engaged with said rapier opening plate.

7. The rapier loom for weft yarn bundle weaving according to claim 1, wherein said weft receiving rapier-transferring mechanism comprises:

a crank shaft including a rotation shaft interlocked with the main shaft and a crank arm connected to the rotation shaft;

the direction-changing gear box comprises an input shaft and an output shaft, wherein the input shaft is axially parallel to the crankshaft, the output shaft is perpendicular to the input shaft, and the output shaft and the rapier wheel are coaxially fixed;

one end of the oscillating bar is a fixed end fixedly connected with the input shaft, and the other end of the oscillating bar is a linkage end in linkage fit with the crank arm;

and one end of the linkage spring is fixedly connected with the linkage end of the oscillating bar, and the other end of the linkage spring is fixedly connected with the crank arm.

8. The rapier loom for weft yarn bundle weaving according to claim 7, characterized in that: the weft splicing rapier conveying mechanism further comprises: the check block is fixed on the rack, is positioned on one side of the swing rod close to the crank shaft, and can be used for abutting against the side part of the swing rod so as to limit the swing angle of the swing rod.

9. The rapier loom for weft yarn bundle weaving according to claim 7, characterized in that: the weft splicing rapier conveying mechanism further comprises: the lower part of the adjusting rod is hinged and matched with the rack, and the stop block is fixed at the upper part of the adjusting rod; the adjusting rod is provided with a positioning hole, the rack is provided with a plurality of adjusting holes corresponding to the positioning hole, and the positioning hole is fixedly connected with the adjusting holes through fasteners.

10. An operating method of a rapier loom is characterized by comprising the following steps:

step 1, warp yarns are separated up and down through an opening mechanism to form a shed;

step 2, forming a weft yarn bundle by a plurality of weft yarns, fixing the weft yarn bundle through a weft supply yarn clamping piece, picking up the weft yarn bundle by a weft feeding sword with the help of a weft feeding sword transmission mechanism, and pushing the weft yarn bundle from one side of a shed to the other side;

step 3, the weft receiving sword moves towards the close weft sending sword under the help of the weft receiving rapier conveying mechanism, and completes the connection of weft yarn bundles with the weft sending sword at the position close to the other side of the shed, and the weft yarn bundles exit from the weft sending sword at the moment;

step 4, after the weft receiving sword belt exits from the shed with the weft yarn bundle, the beating-up mechanism pushes the weft yarn bundle introduced into the shed to a cloth fell to enable the weft yarn bundle to be tightly interwoven with the warp yarn to form a fabric;

step 5, when the beating-up mechanism works, the rapier opening mechanism is gradually close to the rear end of the weft receiving rapier body, and the rapier opening mechanism pushes the rear end of the weft receiving rapier body at the moment so that the front end of the weft receiving rapier body overcomes the acting force of a return spring and swings downwards around a hinged part to release weft yarn bundles at the hook point part of the weft receiving rapier head, and therefore the weft yarn bundles are guaranteed to be separated from an opening at the hook head part of the weft receiving rapier head;

and 6, leading the fabric away from the cloth fell by the let-off mechanism, and winding the fabric led away from the cloth fell onto a cloth roller by the winding mechanism.

Technical Field

The invention relates to a weaving machine, in particular to a rapier weaving machine for weaving weft yarn bundles.

The invention relates to a method for operating a weaving machine, in particular to a method for operating a rapier weaving machine for weaving weft bundles.

Background

The rapier loom is a mainstream machine in the loom, has the advantages of high speed, stability and good variety adaptability, and is a preferred machine for weaving various grades of clothing fabric and other various grey fabrics. In shuttleless looms, the weft insertion principle of rapier looms was first proposed, which was originally a single rapier, and later invented a rapier loom for two rapier weft insertion. The rapier loom prototype was shown in the first international textile machinery exhibit (ITMA) of 1951, and a shuttleless loom was evaluated as a new technology at this exhibit.

The structure and the working principle of the rapier loom are described and explained in detail in the teaching unit 5 'shuttleless loom' (pages 094-199) of the module I and the documents of the general theory of textile machinery, and the like, published by the Chinese textile publisher in 2011 and 5 in the modern weaving technology published by the Donghua university publisher in 2014 and 1. The rapier opening mode mainly comprises two modes, wherein one mode is rigid mechanical impact release, and the other mode is electronic control assistance (such as electric control cylinder pushing and the like).

The chinese intellectual property office disclosed a flexible rapier loom at 22.03.1988, which discloses a basic structure of a weft insertion device (i.e., a weft insertion mechanism) on a conventional flexible rapier loom, wherein a driving mechanism of the weft insertion device employs a sector gear link type rapier conveying mechanism, which is fully disclosed in the patent. The chinese intellectual property office disclosed a "rapier opening mechanism of a double-rapier loom" in 2018, month 07 and 17, wherein the structure and the working principle of the existing rapier opening mechanism are disclosed in the specification and the attached drawings, and the specific working process is as follows: in the rapier and rapier connecting head yarn holding motion process, the position of releasing yarn can be determined, the position of releasing yarn is corresponding, through adjusting the adjusting arm, the rapier opening idler wheel can be effectively driven by the guide shaft to adjust the position, the rapier opening idler wheel is in trimming contact with the clamping yarn sheet flange, the clamping yarn sheet is gently pushed, and the yarn releasing effect is achieved. When the sword is opened, the adjusting arm is driven to swing only through a mechanical mechanism or an electronic control mechanism, and the movement of the sword opening roller is realized through driving the adjustment to swing, so that the sword opening roller is in trimming contact with the yarn clamping sheet flange when the sword is opened. The adjusting arm does not contact with the rapier, so that the impact of the rapier on the rapier by the rapier-opening object can be effectively reduced when the rapier is opened, the stability of leading the rapier is increased, and the service life of the rapier is prolonged. The Chinese intellectual property office discloses a roller type rapier opening mechanism of a rapier loom in 12-31.2007, when the rapier head returns to be close to the end point, a rolling bearing is in contact with a rapier opening block, the rapier head continues to return, the rolling bearing rolls on the upper surface of the rapier opening block, meanwhile, due to the inclined surface structure of the rapier opening block, the rapier opening block is pressed down by the rolling bearing to drive a yarn clamping reed to move downwards, and therefore a yarn clamping jaw formed by a yarn clamping block of the rapier head and the yarn clamping reed is opened. The working principle of the rapier opening mechanism belongs to the mature prior art, and mainly ensures that the action time of a weft receiving rapier acted by a rapier opener from the beginning to the completion of weft releasing is longer than that of a side rapier opener of a weft feeding rapier, and the action time of the weft receiving rapier or the weft feeding rapier is adjusted by properly moving the position of the rapier body motion direction of the rapier opener.

A conventional rapier loom includes a shedding mechanism, a weft insertion mechanism, a beating-up mechanism, a warp let-off mechanism, and a take-up mechanism, in which weft yarns are fed into a shed by the weft insertion mechanism one time after another and then pushed toward a fell via the beating-up mechanism and formed into a fabric. According to the configuration quantity of the rapier, the rapier can be divided into single rapier weft insertion and double rapier weft insertion. In the rapier loom adopting the single rapier weft insertion form, the rapier can only send one weft yarn into the shed at one time, but cannot send two or more weft yarns at one time, otherwise, the weft yarns are loosened or the weft yarns are hooked and broken in the picking and handing-over processes of the weft yarns. If more than two wefts are conveyed into the shed at one time through the weft insertion mechanism, the multi-rapier combined weft insertion mode can be adopted, and the rapier conveying mechanism are added to convey a plurality of wefts into the shed at the same time or a single rapier multiple-time shed entering and exiting mode is adopted to convey a plurality of wefts into the shed repeatedly. However, the foregoing method inevitably increases the equipment cost, or increases the working time during spinning, which is disadvantageous for reducing the cost or improving the production efficiency.

At present, if the aim of simultaneously conveying a plurality of weft yarns into a shed at one time is to be achieved, the defects that the existing weft insertion mechanism cannot realize the purpose, a plurality of weft yarns cannot be smoothly conveyed into the shed during rapier conveying, or a rapier conveyed into the shed cannot smoothly exit and the like easily occur. The weft yarn bundle refers to a weft yarn assembly in which a plurality of weft yarns (at least 2 or more) are assembled together.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a rapier loom suitable for weaving weft yarn bundles.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a rapier weaving machine for weft yarn bundle is woven, includes the frame, and installs shedding mechanism, weft insertion mechanism, beating-up mechanism, warp let-off mechanism and the coiling mechanism in the frame, weft insertion mechanism includes the weft insertion sword, installs in the weft feeding yarn clamping piece of weft insertion sword side, with weft insertion sword matched with weft insertion sword rapier conveying rapier weaving mechanism, with weft insertion sword matched with weft insertion sword weft insertion rapier weaving mechanism, flexible sword area, sword wheel, guider and rapier forming mechanism, characterized by, the weft insertion sword includes:

a rapier head seat linked with the weft connecting rapier conveying mechanism through a flexible rapier band;

the weft receiving rapier head is erected on the rapier head seat and corresponds to the position of the weft feeding rapier, the weft receiving rapier head is hinged and matched with the rapier head seat, and the hook tip part of the weft receiving rapier head can swing up and down around a hinge center;

a reset spring for driving the hook tip part on the weft receiving rapier head to swing upwards;

and the limiting part is used for limiting the angle of the hook tip part on the weft receiving rapier head during upward swinging so as to ensure that the hook tip part on the weft receiving rapier head is matched with the weft feeding rapier.

The invention has the beneficial effects that: the warp yarns are separated up and down through an opening mechanism to form a shed; gathering a plurality of weft yarns into weft yarn bundles, wherein the weft yarn bundles are fixed by a weft feeding and clamping piece, and a weft feeding sword picks up the weft yarn bundles with the help of a weft feeding and rapier conveying mechanism and drives the weft yarn bundles to be pushed from one side of a shed to the other side; the weft receiving sword moves towards the close weft sending sword under the help of the weft receiving rapier conveying mechanism, and completes the connection of weft yarn bundles with the weft sending sword at the position close to the other side of the shed, and the weft yarn bundles exit from the weft sending sword at the moment; after the weft receiving rapier with weft yarn bundles exits from the shed, the beating-up mechanism pushes the weft yarn bundles introduced into the shed to a weaving opening, so that the weft yarn bundles are tightly interwoven with warp yarns to form a fabric; when the beating-up mechanism works, the weft receiving rapier head is close to the rapier opening mechanism, and the rapier opening mechanism pushes the end part of the weft receiving rapier head at the moment, so that the weft receiving rapier head overcomes the acting force of the reset spring and presses the hook point of the weft receiving rapier head around the hinged shaft, and the weft yarn bundle is separated from the hook point of the weft receiving rapier head; the let-off mechanism leads the fabric away from the cloth fell, and the take-up mechanism winds the fabric led away from the cloth fell onto a cloth roller. The invention can send at least more than 2 wefts into the shed at one time, can ensure the smooth connection between the weft feeding rapier head and the weft receiving rapier head after being sent, and then forms a fabric with a plurality of wefts in the weft direction through the beating-up mechanism, and the fabric can be mixed with wefts with different colors in the weft bundle, thereby improving the aesthetic degree of the weft direction and simultaneously improving the fabric strength in the weft direction. Meanwhile, a scissor structure is not needed in the whole process, the mechanism structure is simplified, the working efficiency of the fabric in multi-weft yarn weaving is improved, and the production cost is reduced. In addition, according to the technical scheme, a scissor mechanism is not needed, namely after the weft feeding sword feeds the weft yarn and returns each time, the weft yarn is not required to be cut by the scissor mechanism, and only the weft feeding sword and the weft receiving sword normally feed and receive the weft yarn bundle, so that the cost of the scissor mechanism is reduced, the installation space is saved, and the space is reserved for the installation of other mechanisms.

Further setting the following steps: the weft receiving rapier head comprises a strip-shaped weft receiving rapier body, the weft receiving rapier body comprises a front end matched with the weft feeding rapier and a rear end matched with the rapier opening mechanism, and the front end of the weft receiving rapier body is provided with a hook head used for receiving weft yarns transmitted by the weft feeding rapier; the front end of the weft receiving sword body is also provided with an anti-hooking barrier strip which is positioned above the hook head and extends from the rear end to the front end direction, and an opening for weft yarns to enter the hook head is reserved between the anti-hooking barrier strip and the hook head. The weft receiving rapier head with the structure is simple in structure and good in stability, the hook head is freely arranged, the hook-shaped part of the hook head can be designed to be larger, and the opening on the hook head is also larger. Because the weft yarn bundle contains a plurality of weft yarns, the weft receiving rapier head with the structure is particularly suitable for hooking and releasing the weft yarn bundle, and can meet the requirement of weaving the weft yarn bundle. The hook head is structurally characterized in that when the rapier receiving head releases weft yarn bundles through the rapier opening mechanism, the hook head swings downwards around the hinged part, and the weft yarn bundles in the hook head can be naturally separated from the hook head.

Further setting the following steps: a spring frame fixed with the rapier head seat is erected above the front end of the weft receiving rapier body, one end of a reset spring is fixedly connected with the spring frame, and the other end of the reset spring is fixedly connected with the front end of the weft receiving rapier body so as to drive the hook head to swing upwards around the hinged position; the limiting part is positioned above the front end of the weft receiving rapier body and is fixed with the rapier head seat, and the bottom of the limiting part is abutted against the upper surface of the front end of the weft receiving rapier body so as to limit the angle of the hook head swinging upwards around the hinged part. In the scheme, the reset spring drives the hook tip part on the weft receiving rapier head to swing upwards; the limiting part limits the angle of the hook tip part on the weft connecting rapier head when swinging upwards so as to ensure that the hook tip part on the weft connecting rapier head can keep forward and ensure that a proper butt joint angle is kept when the weft connecting rapier is in butt joint with the weft feeding rapier. The installation mode and the position of the reset spring and the limiting part can be selected in various ways, the reset spring can drive the hook tip part on the rapier gripper head to swing upwards only by ensuring, and the limiting part can limit the angle when the hook tip part on the rapier gripper head swings upwards, wherein other replacement modes can be easily thought of through the installation and the selection of the reset spring and the limiting part, and are not repeated herein.

Further setting the following steps: the weft insertion rapier comprises a weft insertion rapier head, wherein a roller is hinged to the side of the weft insertion rapier head, and a guide groove which is arranged along the circumferential direction of the roller and is accommodated when weft yarns penetrate is formed in the rim of the roller. Because many woofs when the woof restraints form in this scheme set, consequently can produce bigger frictional force than traditional form when the bringer sword connects and send, in order to reduce the wearing and tearing of woof to avoid the influence to the fastness, so need increase the gyro wheel of taking the direction recess, become rolling friction with sliding friction, with this reduction wearing and tearing.

Further setting the following steps: the rapier weaving machine comprises: the main shaft is fixed with a swing frame crank; the swing frame is hinged on the rack, and the weft receiving rapier and the rapier wheel are both arranged on the swing frame; the hand pulling device is used for connecting the swing frame crank and the swing frame, and two ends of the hand pulling device are respectively hinged and matched with the swing frame crank and the swing frame; the rapier opening mechanism is a rapier opening plate which is fixed on the rack and arranged towards the side where the swing frame is located, the weft receiving rapier reciprocates back and forth on the swing frame and moves close to or away from the rapier opening plate along with the swing of the swing frame, and therefore the rapier opening plate intermittently pushes the rear end of the weft receiving rapier body to drive the hook head of the weft receiving rapier body to swing downwards around the hinged position and release weft yarns. The rapier opening plate is arranged to help the weft receiving rapier to release weft yarn bundles, and the rapier opening plate is simple in structure, convenient to operate, low in cost and easy to operate, and can control the position and time when the weft yarn bundles are released by adjusting the position, the length and the angle of the rapier opening plate.

Further setting the following steps: the back end of the weft receiving rapier body is provided with a rapier opening roller matched with the rapier opening plate. The rapier opening roller is matched with the rapier opening plate, so that the abrasion of the weft receiving rapier body and the rapier opening plate can be reduced, and the service life is prolonged.

Further setting the following steps: the weft receiving and rapier conveying mechanism comprises: a crank shaft including a rotation shaft interlocked with the main shaft and a crank arm connected to the rotation shaft; the direction-changing gear box comprises an input shaft and an output shaft, wherein the input shaft is axially parallel to the crankshaft, the output shaft is perpendicular to the input shaft, and the output shaft and the rapier wheel are coaxially fixed; one end of the oscillating bar is a fixed end fixedly connected with the input shaft, and the other end of the oscillating bar is a linkage end in linkage fit with the crank arm; and one end of the linkage spring is fixedly connected with the linkage end of the oscillating bar, and the other end of the linkage spring is fixedly connected with the crank arm. Compared with the traditional mechanism, the weft connecting rapier conveying mechanism has the advantages that the structure is simpler, a plurality of gears and connecting rods are saved, the forming cost is reduced, the weight is reduced, the weft connecting rapier conveying mechanism is more convenient to maintain, and the loss is reduced. The swing angle of the output shaft of the change gear box can be freely controlled by controlling the angle of the swing rod and the elasticity of the linkage spring, the swing of the angle of the output shaft controls the reciprocating rotation of the rapier wheel, and correspondingly, the stroke of the reciprocating motion of the weft receiving rapier is controlled by the flexible rapier band wound on the rapier wheel.

Further setting the following steps: the weft splicing rapier conveying mechanism further comprises: the check block is fixed on the rack, is positioned on one side of the swing rod close to the crank shaft, and can be used for abutting against the side part of the swing rod so as to limit the swing angle of the swing rod. The stop block is used for stopping the swing rod to control the swing angle of the swing rod, the swing rod is used for controlling the swing angle of the output shaft of the change gear box, the swing of the angle of the output shaft controls the reciprocating rotation of the rapier wheel, and correspondingly the stroke of the weft splicing rapier reciprocating motion is controlled by the flexible rapier band wound on the rapier wheel. Therefore, the reciprocating motion stroke of the weft connecting sword can be realized by simply controlling the stop block, the operation is convenient, the structure is simple, the efficiency is high, and more adjusting and controlling modes are provided, so that different weft connecting requirements are met.

Further setting the following steps: the weft splicing rapier conveying mechanism further comprises: the lower part of the adjusting rod is hinged and matched with the rack, and the stop block is fixed at the upper part of the adjusting rod; the adjusting rod is provided with a positioning hole, the rack is provided with a plurality of adjusting holes corresponding to the positioning hole, and the positioning hole is fixedly connected with the adjusting holes through fasteners. More adjusting schemes can be met through the adjusting rod, and different working requirements are met.

In order to overcome the disadvantages of the prior art, the invention provides an operating method of a rapier loom suitable for weaving weft yarn bundles.

The technical scheme adopted by the invention for solving the technical problems is as follows: an operating method of a rapier loom is characterized by comprising the following steps:

step 1, warp yarns are separated up and down through an opening mechanism to form a shed;

step 2, forming a weft yarn bundle by a plurality of weft yarns, fixing the weft yarn bundle through a weft supply yarn clamping piece, picking up the weft yarn bundle by a weft feeding sword with the help of a weft feeding sword transmission mechanism, and pushing the weft yarn bundle from one side of a shed to the other side;

step 3, the weft receiving sword moves towards the close weft sending sword under the help of the weft receiving rapier conveying mechanism, and completes the connection of weft yarn bundles with the weft sending sword at the position close to the other side of the shed, and the weft yarn bundles exit from the weft sending sword at the moment;

step 4, after the weft receiving sword belt exits from the shed with the weft yarn bundle, the beating-up mechanism pushes the weft yarn bundle introduced into the shed to a cloth fell to enable the weft yarn bundle to be tightly interwoven with the warp yarn to form a fabric;

step 5, when the beating-up mechanism works, the rapier opening mechanism is gradually close to the rear end of the weft receiving rapier body, and the rapier opening mechanism pushes the rear end of the weft receiving rapier body at the moment so that the front end of the weft receiving rapier body overcomes the acting force of a return spring and swings downwards around a hinged part to release weft yarn bundles at the hook point part of the weft receiving rapier head, and therefore the weft yarn bundles are guaranteed to be separated from an opening at the hook head part of the weft receiving rapier head;

and 6, leading the fabric away from the cloth fell by the let-off mechanism, and winding the fabric led away from the cloth fell onto a cloth roller by the winding mechanism.

The invention can send at least more than 2 wefts into the shed at one time, can ensure the smooth connection between the weft feeding rapier head and the weft receiving rapier head after being sent, and then forms a fabric with a plurality of wefts in the weft direction through the beating-up mechanism, and the fabric can be mixed with wefts with different colors in the weft bundle, thereby improving the aesthetic degree of the weft direction and simultaneously improving the fabric strength in the weft direction. Meanwhile, a scissor structure is not needed in the whole process, the mechanism structure is simplified, the working efficiency of the fabric in multi-weft yarn weaving is improved, and the production cost is reduced.

Drawings

Fig. 1 is a schematic structural view of a weft receiving sword according to an embodiment of the invention.

Fig. 2 is a schematic structural view of another view angle of the weft receiving sword in the embodiment of the invention.

FIG. 3 is a schematic structural diagram of a main shaft, a swing frame crank, a swing frame, a hand pulling, a weft receiving rapier and a rapier wheel according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a weft receiving and rapier conveying mechanism according to an embodiment of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings: