CN108677354B - A weft insertion mechanism of a multi-layer circular loom - Google Patents

Abstract

The utility model provides a multilayer tubular loom's weft insertion mechanism, including weft insertion fixed plate and weft insertion shuttle, evenly be provided with multiunit transmission and a plurality of shuttle spacing wheel along its circumferencial direction on the weft insertion fixed plate, the weft insertion shuttle includes arc rack and the carrier that sets up on it, the driving lever, arc rack meshes with transmission's gear, transmission includes fixing base and step motor, set up the locating hole on the gear, be provided with the screw in the locating hole, the gear passes through the screw fixation on step motor's epaxial, the notch has been seted up to the lower extreme of fixing base, notch department is provided with the sensor, the sensor is used for responding to the position of gear through the response screw position, install the gyro wheel on the fixing base, the lower extreme of arc rack is provided with spacing bottom plate, the both sides of spacing bottom plate cooperate with shuttle spacing wheel, the gyro wheel respectively, weft insertion shuttle accomplishes the weft insertion action along the circumferencial direction motion of weft insertion fixed plate. The design is high in weft insertion efficiency, good in weaving effect and high in reliability.

Description

A Weft Insertion Mechanism of Multi-layer Cylindrical Loom

technical field

The invention relates to the field of textile equipment, in particular to a weft insertion mechanism of a multi-layer circular loom, which is mainly suitable for improving weft insertion efficiency and weaving effect.

Background technique

At present, three-dimensional woven fabric composite materials have been used in various fields due to their excellent mechanical properties and light weight characteristics. The automation of three-dimensional weaving has been realized, but the weaving automation of multi-layer cylindrical woven fabrics in three-dimensional woven fabrics is a technical difficulty, especially in the weft insertion mechanism. Although the existing circular looms can complete weaving with high efficiency, the number of fabric layers weaved is not many, which cannot meet the requirements of various thicknesses, and the weft insertion mechanism of the circular loom will contact with the yarn, causing the yarn to wear and tear. High performance fiber fabrics cannot be woven. Therefore, prior art needs improvement and development.

Contents of the invention

The purpose of the present invention is to overcome the defects and problems of low weft insertion efficiency and poor weaving effect in the prior art, and provide a weft insertion mechanism of a multi-layer circular loom with high weft insertion efficiency and good weaving effect.

In order to achieve the above object, the technical solution of the present invention is: a weft insertion mechanism of a multi-layered circular loom, the weft insertion mechanism comprises a weft insertion fixing plate and a weft insertion shuttle, the weft insertion fixing plate is an annular structure, The weft insertion fixing plate is evenly equipped with multiple groups of transmission devices and a plurality of shuttle limit wheels along its circumferential direction. The weft insertion shuttle includes an arc-shaped rack and a yarn carrier arranged on it. The arc-shaped rack and the The gears of the transmission device are meshed, the arc-shaped rack is defined between the transmission device and the shuttle stop wheel, and the weft insertion shuttle moves along the circumferential direction of the weft insertion fixing plate to complete the weft insertion action.

The transmission device includes a fixed base and a stepping motor, the stepping motor is fixed on the upper end of the fixed base through the motor fixing plate, the lower end of the fixing base is connected with the weft insertion fixing plate, and the gear is located under the motor fixing plate, And the gear is connected with the stepping motor.

The gear is provided with a positioning hole, and a screw is arranged in the positioning hole, and the gear is fixed on the shaft of the stepper motor through a screw, and a notch is provided at the lower end of the fixing seat, and a sensor is provided at the notch, and the Sensor for sensing the position of the gear by sensing the position of the screw.

A waist-shaped hole is opened on the side of the fixed seat close to the shuttle limit wheel, and a roller is installed in the waist-shaped hole. The lower end of the arc-shaped rack is provided with a limit bottom plate. The bit wheel is matched, and the other side of the limit base plate is matched with the roller.

A driving lever is arranged on the arc-shaped rack near the yarn carrier.

The yarn carrying device includes a wire pulling retaining ring and a yarn bobbin arranged inside thereof, and the yarn bobbin is fixed on an arc-shaped rack through a yarn bobbin fixing seat, and a tension regulator is arranged on the yarn bobbin fixing seat, and the wire pulling The retaining ring is fixed on the bobbin fixing seat.

The weft insertion fixing plate is spliced by a plurality of arc-shaped plates.

A plurality of connecting seats are evenly arranged on the weft insertion fixing plate along its circumferential direction.

The inner peripheral surface of the weft insertion fixing plate is evenly provided with a plurality of mounting plates, and a partition plate is connected to one of the two adjacent mounting plates, and the transmission device and the shuttle limit wheel are all arranged on the mounting plate. board.

Compared with prior art, the beneficial effect of the present invention is:

1. In the weft insertion mechanism of a multi-layer cylindrical loom according to the present invention, multiple groups of transmission devices and a plurality of shuttle limit wheels are evenly arranged on the weft insertion fixed plate along its circumferential direction, and the weft insertion shuttle includes arc-shaped racks and The yarn carrier set on it, the arc-shaped rack meshes with the gear of the transmission device, and the arc-shaped rack is limited between the transmission device and the shuttle limit wheel. This design uses the circular motion of the rack and pinion to complete the weft insertion. It realizes automatic weft insertion, solves the problems of slow and low efficiency of manual weft insertion, and also optimizes the shortcomings of circular looms that cannot be used in multi-layer circular looms. Interfering with yarn. Therefore, the invention has high weft insertion efficiency and good weaving effect.

2. The gear in the weft insertion mechanism of a multi-layer cylindrical loom according to the present invention is located below the motor fixing plate, and a positioning hole is opened on the gear, and a screw is arranged in the positioning hole, and the gear is fixed on the shaft of the stepping motor through the screw , The lower end of the fixed seat is provided with a notch, and a sensor is arranged at the notch, and the sensor sends a position signal to let the stepper motor find the initial position, so as to move synchronously, so as to avoid the occurrence of tooth collision. Therefore, the present invention has high reliability.

3. In the weft insertion mechanism of a multi-layer cylindrical loom according to the present invention, a waist-shaped hole is provided on the side of the fixed seat close to the shuttle limit wheel, and a roller is installed in the waist-shaped hole, and the lower end of the arc-shaped rack is provided with a limit stop. Bottom plate, one side of the limit bottom plate is matched with the shuttle limit wheel, the other side of the limit bottom plate is matched with the roller, and the limit bottom plate limits the weft insertion shuttle on the moving track through the shuttle limit wheel and the roller; the yarn carrying The device consists of a thread retaining ring and a yarn bobbin inside. The yarn bobbin is fixed on the arc-shaped rack through the yarn bobbin fixing seat. The yarn bobbin fixing seat is equipped with a tension regulator. Depending on the tension, the dial retaining ring is fixed on the bobbin holder to prevent the opening from being too small and to expand the opening. Therefore, the invention has high reliability and good weaving effect.

4. In the weft insertion mechanism of a multi-layer cylindrical loom according to the present invention, a lever is arranged on the arc-shaped rack near the yarn carrier, and a plurality of installation plates are uniformly arranged on the inner peripheral surface of the weft insertion fixing plate. , one of the two adjacent mounting plates is connected with a partition, this design not only has high reliability, but also has a good weaving effect; the weft insertion fixing plate is made of multiple arc-shaped plates, which makes the manufacturing simple; A plurality of connecting seats are evenly arranged on the weft insertion fixing plate along its circumferential direction, so that the installation is simple and convenient. Therefore, the present invention has high reliability, good weaving effect, simple manufacture and convenient installation.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a front view of the transmission device in Fig. 1 .

FIG. 3 is a top view of FIG. 2 .

Fig. 4 is a schematic structural view of the weft insertion shuttle in Fig. 1 .

In the figure: weft insertion fixing plate 1, arc-shaped plate 11, connecting seat 12, mounting plate 13, partition 14, weft insertion shuttle 2, arc-shaped rack 21, yarn carrier 22, wire pulling retaining ring 221, yarn bobbin 222, bobbin fixing seat 223, tension regulator 224, limit base plate 23, lever 24, transmission device 3, gear 31, fixing seat 32, stepping motor 33, motor fixing plate 34, notch 35, sensor 36, Roller 37, shuttle limit wheel 4.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 to Fig. 4, a weft insertion mechanism of a multi-layer circular loom, the weft insertion mechanism includes a weft insertion fixing plate 1 and a weft insertion shuttle 2, the weft insertion fixing plate 1 is a ring structure, and the weft insertion is fixed There are several groups of transmission devices 3 and a plurality of shuttle limit wheels 4 evenly arranged on the board 1 along its circumferential direction, and the weft insertion shuttle 2 includes an arc-shaped rack 21 and a yarn carrier 22 arranged on it. The rack 21 is meshed with the gear 31 of the transmission device 3, and the arc-shaped rack 21 is defined between the transmission device 3 and the shuttle limit wheel 4. The weft insertion shuttle 2 moves along the circumferential direction of the weft insertion fixed plate 1 to complete the weft insertion. weft action.

Described transmission device 3 comprises fixed seat 32 and stepper motor 33, and described stepper motor 33 is fixed on the upper end of fixed seat 32 by motor fixed plate 34, and the lower end of fixed seat 32 is connected with weft insertion fixed plate 1, and described The gear 31 is located under the motor fixing plate 34 , and the gear 31 is connected with the stepping motor 33 .

The gear 31 is provided with a positioning hole, and a screw is arranged in the positioning hole, and the gear 31 is fixed on the shaft of the stepper motor 33 by a screw, and the lower end of the fixed seat 32 is provided with a notch 35, and the notch 35 A sensor 36 is provided, and the sensor 36 is used to sense the position of the gear 31 by sensing the position of the screw.

The fixed seat 32 is provided with a waist-shaped hole near the side of the shuttle limit wheel 4, and a roller 37 is installed in the waist-shaped hole. One side of the spacer is matched with the shuttle spacer wheel 4, and the other side of the spacer base plate 23 is matched with the roller 37.

A driving rod 24 is arranged on the arc-shaped rack 21 near the yarn carrier 22 .

The yarn carrier 22 includes a thread retaining ring 221 and a yarn bobbin 222 arranged inside, the yarn bobbin 222 is fixed on the arc-shaped rack 21 through the yarn bobbin fixing seat 223, and the yarn bobbin fixing seat 223 is provided with a tension The adjuster 224 , the wire dial retaining ring 221 is fixed on the bobbin fixing seat 223 .

The weft insertion fixing plate 1 is formed by splicing a plurality of arc-shaped plates 11 .

A plurality of connecting seats 12 are uniformly arranged on the weft insertion fixing plate 1 along its circumferential direction.

The inner peripheral surface of described weft insertion fixing plate 1 is evenly provided with a plurality of mounting plates 13, and a dividing plate 14 is connected on one mounting plate 13 in every adjacent two mounting plates 13, and described transmission device 3, shuttle limit Bit wheels 4 are all arranged on the mounting plate 13 .

Principle of the present invention is described as follows:

The purpose of this design is to provide a weft insertion mechanism of a multi-layer circular loom, aiming to solve the problems of the weft insertion mechanism of the multi-layer circular loom in the weft insertion mode, efficiency and operability, and at the same time ensure that the weft insertion process Does not interfere with the yarn and provides a greater weft tension.

A weft insertion mechanism of a multi-layer cylindrical loom, comprising a weft insertion fixed plate, a weft insertion shuttle, n sets of transmission devices uniformly distributed on the weft insertion fixed plate and n shuttle limit wheels, the weft insertion fixed plate passes through It is spliced in the form of a combination of m blocks to reduce the difficulty of production. The weft insertion fixing plate can also be a whole. The arc-shaped rack is meshed with n gears of n sets of transmission devices for transmission, so as to complete the weft insertion action along the circumferential direction. In the initial state, n stepping motors start to rotate at a low speed, find the initial origin position according to the signal of the sensor, and then rotate at a high speed synchronously, so that the arc-shaped rack can be smoothly and accurately meshed with other gears. At the same time, when the weft insertion shuttle is doing circular motion, it will not affect the shedding movement of the warp yarn. After the warp yarn is shedding first, the weft insertion shuttle will pass through the opening, and finally complete the beating action without stopping. In order to avoid tooth collision or tooth jamming, the position of the transmission device and the shuttle limit wheel should be adjusted. The shuttle limit wheel and the transmission device will limit the weft insertion shuttle to a fixed movement track, and adopt the form of a rack and pinion. The motion completes the weft insertion action, realizes automatic weft insertion, solves the problems of slow speed and low efficiency of manual weft insertion, and also optimizes the disadvantage that circular looms cannot be used in multi-layer circular looms.

Further, in order to facilitate the automation of weft insertion, each group of transmission devices includes a fixed seat, a stepping motor, a gear, a motor fixing plate, and a roller arranged on the weft insertion fixing plate, so that each gear can find the origin at the beginning , it is necessary to find the same positioning hole on each gear, the positioning hole fixes the screw, and the position of the screw is sensed by the sensor to determine the position of the gear. The position is convenient for disassembly and assembly, and the space is effectively used without interfering with the yarn.

Further, in order to allow the weft insertion shuttle to run smoothly, the motor fixing plate that fixes the stepping motor is provided with a waist-shaped hole at the place connected to the fixing seat for easy adjustment. When installing, firstly the rollers are closely attached to the limiting bottom plate under the arc-shaped rack, and then the gear is adjusted so that the gear and the arc-shaped rack mesh smoothly.

Further, in order to complete the weft insertion action with high efficiency and achieve a good weaving effect, the weft insertion shuttle is also an important influencing factor. The weft insertion shuttle includes a yarn carrier, a driving lever, an arc rack, and a limit bottom plate. The yarn carrier is arranged on the arc rack, and the limit base plate is arranged under the arc rack, and the limit base plate limits the weft insertion shuttle on the fixed motion track by contacting the shuttle limit wheel and the roller. The yarn carrying device includes a yarn bobbin, a yarn bobbin fixing seat, a tension regulator, and a thread retaining ring. The yarn bobbin is set on the yarn bobbin fixing seat, and the tension regulator is set at the front end of the yarn bobbin fixing seat, and can be adjusted according to the required weft tension. The tension of the tension regulator is large, and the dial retaining ring is arranged on the yarn bobbin fixing seat to prevent the opening from being too small and to expand the opening.

The weft insertion shuttle and the transmission device cooperate with each other in the form of rack and pinion, and use the stepping motor to complete the synchronous rotation of n gears. The shuttle limit wheel and the transmission device limit the weft insertion shuttle to a fixed motion track and move one circle. Promptly complete the weft insertion action. In this design, n sets of transmission devices are set up to control the movement of weft insertion, and the whole weft insertion action is completed in the form of rack and pinion.

The weft insertion mechanism of the multi-layer cylindrical loom designed in this design makes the weft insertion action smooth through the cooperation of various parts; through the precise control of the stepping motor, the motor is synchronized, and there will be no tooth collision phenomenon; The mechanism can complete the weft insertion action with high efficiency and provide a sufficient weft thread tension, so that the fabric has a good appearance, and the composite material can also achieve good mechanical properties. This design is simple in structure, precise in control, and can not interfere with the yarn, and can realize different weft insertion speeds by changing the parameters of the stepping motor.

Example:

Referring to Fig. 1, a weft insertion mechanism of a multi-layer circular loom comprises a weft insertion fixed plate 1 and a weft insertion shuttle 2, the weft insertion fixed plate 1 is a ring structure, and the weft insertion fixed plate 1 is arranged along its circumferential direction. 16 groups of transmission devices 3 and 16 shuttle limit wheels 4 are uniformly arranged; the weft insertion fixed plate 1 is spliced by four arc-shaped plates 11; the weft insertion fixed plate 1 is uniformly arranged along its circumferential direction 16 connecting seats 12; 16 mounting plates 13 are uniformly arranged on the inner peripheral surface of the weft insertion fixing plate 1, and a partition 14 is connected to one mounting plate 13 in each adjacent two mounting plates 13, the said The transmission device 3 and the shuttle limit wheel 4 are all arranged on the mounting plate 13 .

Referring to Fig. 1 to Fig. 3, described transmission device 3 comprises fixed seat 32 and stepper motor 33, and described stepper motor 33 is fixed on the upper end of fixed seat 32 by motor fixing plate 34, and the lower end of fixed seat 32 is fixed with weft insertion. The plate 1 is connected, the gear 31 is located under the motor fixing plate 34, and the gear 31 is connected with the stepping motor 33; the gear 31 is provided with a positioning hole, and a screw is arranged in the positioning hole, and the gear 31 passes through the The screw is fixed on the shaft of the stepping motor 33, the lower end of the fixed base 32 is provided with a notch 35, and the notch 35 is provided with a sensor 36, and the sensor 36 is used to sense the position of the gear 31 by sensing the position of the screw ; The side of the fixed seat 32 close to the shuttle limit wheel 4 is provided with a waist-shaped hole, and a roller 37 is installed in the waist-shaped hole.

Referring to Figures 1 to 4, the weft insertion shuttle 2 includes an arc-shaped rack 21 and a yarn carrier 22 arranged thereon, the arc-shaped rack 21 meshes with the gear 31 of the transmission device 3, and the arc-shaped rack 21 is defined between the transmission device 3 and the shuttle limit wheel 4, the arc-shaped rack 21 is provided with a driving lever 24 at a position close to the yarn carrier 22, and the lower end of the arc-shaped rack 21 is provided with a limit plate 23. One side of the limit bottom plate 23 cooperates with the shuttle limit wheel 4, and the other side of the limit bottom plate 23 cooperates with the roller 37, and the weft insertion shuttle 2 moves along the circumferential direction of the weft insertion fixed plate 1 Complete the weft insertion action.

Referring to Fig. 1 and Fig. 4, the yarn carrying device 22 includes a wire pulling retaining ring 221 and a yarn bobbin 222 arranged inside thereof, and the yarn bobbin 222 is fixed on the arc-shaped rack 21 through a yarn bobbin fixing seat 223, and the yarn bobbin A tension adjuster 224 is arranged on the fixing seat 223 , and the wire pulling retaining ring 221 is fixed on the yarn bobbin fixing seat 223 .

Claims (5)

1. The weft insertion mechanism of the multilayer tubular loom is characterized by comprising a weft insertion fixed plate (1) and a weft insertion shuttle (2), wherein the weft insertion fixed plate (1) is of an annular structure, a plurality of groups of transmission devices (3) and a plurality of shuttle limit wheels (4) are uniformly arranged on the weft insertion fixed plate (1) along the circumferential direction of the weft insertion fixed plate, the weft insertion shuttle (2) comprises an arc-shaped rack (21) and a yarn carrier (22) arranged on the arc-shaped rack, the arc-shaped rack (21) is meshed with a gear (31) of the transmission device (3), the arc-shaped rack (21) is limited between the transmission device (3) and the shuttle limit wheels (4), and the weft insertion shuttle (2) moves along the circumferential direction of the weft insertion fixed plate (1) to finish weft insertion;

the transmission device (3) comprises a fixed seat (32) and a stepping motor (33), the stepping motor (33) is fixed at the upper end of the fixed seat (32) through a motor fixing plate (34), the lower end of the fixed seat (32) is connected with the weft insertion fixing plate (1), the gear (31) is positioned below the motor fixing plate (34), and the gear (31) is connected with the stepping motor (33); the gear (31) is provided with a positioning hole, a screw is arranged in the positioning hole, the gear (31) is fixed on the shaft of the stepping motor (33) through the screw, the lower end of the fixing seat (32) is provided with a notch (35), the notch (35) is provided with a sensor (36), and the sensor (36) is used for sensing the position of the gear (31) through sensing the position of the screw;

the weft insertion fixing plate (1) is formed by splicing a plurality of arc-shaped plates (11); the weft insertion fixing plate (1) is characterized in that a plurality of mounting plates (13) are uniformly arranged on the inner peripheral surface of the weft insertion fixing plate (1), a partition plate (14) is connected to one mounting plate (13) of every two adjacent mounting plates (13), and the transmission device (3) and the shuttle limiting wheels (4) are arranged on the mounting plates (13).

2. Weft insertion mechanism for a multi-layer tubular loom according to claim 1, characterized in that: waist type hole has been seted up to one side that fixing base (32) is close to shuttle spacing wheel (4), installs gyro wheel (37) in the waist type hole, the lower extreme of arc rack (21) is provided with spacing bottom plate (23), one side and shuttle spacing wheel (4) of spacing bottom plate (23) cooperate, and the opposite side and the gyro wheel (37) of spacing bottom plate (23) cooperate.

3. Weft insertion mechanism for a multi-layer tubular loom according to claim 2, characterized in that: a deflector rod (24) is arranged on the arc-shaped rack (21) at a position close to the yarn carrier (22).

4. A weft insertion mechanism for a multi-layer tubular loom according to claim 3, wherein: the yarn carrier (22) comprises a yarn pulling retainer ring (221) and a yarn barrel (222) arranged in the yarn carrier, the yarn barrel (222) is fixed on the arc-shaped rack (21) through a yarn barrel fixing seat (223), a tension regulator (224) is arranged on the yarn barrel fixing seat (223), and the yarn pulling retainer ring (221) is fixed on the yarn barrel fixing seat (223).

5. Weft insertion mechanism for a multi-layer tubular weaving machine according to any one of claims 1 to 4, characterized in that: a plurality of connecting seats (12) are uniformly arranged on the weft insertion fixing plate (1) along the circumferential direction of the weft insertion fixing plate.

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