WO2017177658A1

WO2017177658A1 - Sliding and positioning weft catcher

Info

Publication number: WO2017177658A1
Application number: PCT/CN2016/103467
Authority: WO
Inventors: 何晓东
Original assignee: 苏州市丹纺纺织研发有限公司
Priority date: 2016-04-15
Filing date: 2016-10-27
Publication date: 2017-10-19
Also published as: DE212016000117U1; DE112016002775T5; CN105671751A; JP3220562U; CN105671751B

Abstract

Disclosed is a sliding and positioning weft catcher, comprising a frame-shaped rail (200) disposed at a weft catch end of a weaving machine. A frame-shaped optical sensor (300) is provided on the rear side of the frame-shaped rail (200). Four slide slots (220) are provided on the inner side of the frame-shaped rail (200). Two sliders (210) driven by a motor are provided in each slide slot (220). The sliders (210) oppositely disposed in the slide slots (220) are correspondingly connected by means of two pairs of parallel metal wires (100). The motor and the sliders (210) are electrically connected with the frame-shaped optical sensor (300). The metal wires (100) are driven by the motor to rotate in opposite rotation directions. In the sliding and positioning weft catcher, when the frame-shaped optical sensor detects that a weft passes through the weft catcher, the motor starts, and the sliders drive the parallel metal wires to quickly move toward each other from edges of the frame-shaped rail. As the quadrilateral defined by the four parallel metal wires becomes smaller, the weft is finally limited at the center of the frame-shaped rail. Moreover, since the parallel metal wires oppositely rotate inwards, the weft can be tensioned and prevented from coming off.

Description

Sliding positioning type weft catcher

Technical field

The invention relates to the field of textile machinery, in particular to a sliding positioning type catcher suitable for a shuttleless loom.

Background technique

The shuttle loom is traditionally used because of the weaving machine. The shuttle is bulky and heavy, and is repeatedly projected by the flow. The machine has large vibration, high noise, slow speed and low efficiency.

The shuttleless loom was followed by a shuttle loom, a new type of loom that was born. The shuttleless loom quickly occupied the loom market due to its light weight, low vibration, low noise, fast speed and high efficiency. The shuttleless loom is divided into a rapier loom, a gripper loom, a water jet loom, an air jet loom, etc., wherein the air jet loom works by using air as a medium to produce a matcha against the weft yarn by the jetted compressed airflow. Traction is carried out, the weft yarn is taken through the shed, and the jet generated by the jet is used to achieve the purpose of simple weft insertion. Since the medium for driving the weft yarn, such as water or air, is affected by the outside during flight, the weft yarn passes through the weft end. The positions are different, causing the weft yarn to easily get out of the weft picking device.

Summary of the invention

In order to solve the above problems, it is an object of the present invention to provide a slide positioning type catcher capable of accurately capturing a weft yarn.

The technical solution adopted by the present invention to solve the technical problem thereof is:

The sliding positioning type weft catcher comprises a frame-shaped track disposed at a weft end of the weaving machine, and the frame-shaped track is provided with a frame-shaped optical sensor, and the inside of the frame-shaped track is provided with four sliding grooves, each of which has a chute Two sliders driven by a motor are disposed therein, and the sliders in the oppositely disposed sliding slots are correspondingly connected by two parallel wires, the motor and the slider and the frame light The sensor is electrically connected, the wire being driven by the motor to rotate and rotating in opposite directions.

Preferably, the linear distance between the perpendicularly intersecting wires is greater than 0.1 mm.

Preferably, the middle of the wire is provided with an annular groove matched with the weft yarn, and the groove is sanded.

Preferably, the arcuate section of the arcuate groove has an arc of not less than 30°.

The advantages of the invention are:

When the frame-shaped optical sensor detects that the weft yarn passes through, the motor starts, and the slider drives the parallel wires to move toward each other rapidly from the frame-shaped track side. Since the quadrilateral formed by the four parallel wires is smaller and smaller, the weft is finally limited. At the center of the frame-shaped track, at the same time, since the mutually parallel wires are twisted inward, the weft yarn can be tightened to prevent it from falling off.

DRAWINGS

Figure 1 is a right side view of the slide positioning type catcher.

Figure 2 is a front elevational view of the slide positioning type catcher.

Fig. 3 is a schematic view showing the movement of the slide positioning type catcher.

Fig. 4 is an enlarged view of the slide positioning type catcher mark I.

Figure 5 is a cross-sectional view of the slide positioning type catcher mark H.

detailed description

The present invention is further described below in conjunction with the accompanying drawings and embodiments:

In the present embodiment, referring to FIG. 1, FIG. 2, FIG. 4 and FIG. 5, the sliding positioning type catcher includes a frame-shaped rail 200 disposed at a weft-trapping end of the loom, and the frame-shaped rail 200 is rear-framed. The optical sensor 300 is provided with four sliding slots 220 on the inner side of the frame rail 200. Each of the sliding slots 220 is provided with two sliders 210 driven by a motor, and the sliders 210 in the oppositely disposed sliding slots 220 pass through two. The parallel wires 100 are correspondingly connected, and the motor and slider 210 are electrically connected to the frame-shaped optical sensor 300, and the wire 100 is driven to rotate by a motor and rotate in opposite directions.

In the above sliding positioning type catcher, the linear distance between the perpendicularly intersecting wires 100 is greater than 0.1 mm to prevent vertical cross-wear from being worn.

In the above-mentioned sliding positioning type weft catcher, an annular groove 50 matching the weft yarn 10 is opened in the middle of the wire 100, and the groove is sanded to increase the friction between the wire 100 and the weft yarn 10 to prevent the wire. latitude.

In the above sliding positioning type catcher, the arcuate section of the arcuate groove 50 has an arc of not less than 30°.

The above-mentioned sliding positioning type of weft catcher works:

Referring to FIGS. 2 and 4, when the frame-shaped optical sensor 300 detects that the weft yarn 10 has passed, the motor is activated, and the slider 210 drives the parallel wires 100 to move toward each other from the frame-shaped track 200, due to the four parallel wires 100. The enclosed quadrilateral is getting smaller and smaller, and finally the weft yarn 10 is confined to the center of the frame-shaped rail, and at the same time, since the mutually parallel wires 100 are inwardly twisted, the weft yarn 10 can be tightened to prevent it from falling off.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalents, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. range.

Claims

A sliding positioning type catcher, comprising: a frame-shaped track (200) disposed at a weft end of a weaving machine, wherein a frame-shaped optical sensor (300) is disposed on a rear side of the frame-shaped track (200), There are four sliding slots (220) on the inner side of the frame-shaped rail (200), and two sliding blocks (210) driven by the motor are arranged in each sliding slot (220), and sliding in the oppositely disposed sliding slots (220) The block (210) is correspondingly connected by two parallel wires (100) electrically connected to the frame-shaped optical sensor (300), the wire (100) being driven by a motor Rotate and rotate in the opposite direction.
The sliding positioning type weft catcher according to claim 1, wherein the linear distance between the perpendicularly intersecting wires (100) is greater than 0.1 mm.
The sliding positioning type weft catcher according to claim 2, wherein the wire (100) is provided with an annular groove (50) matched with the weft yarn (10), and the groove is frosted. .
The sliding positioning type weft catcher according to claim 2, wherein the arcuate section of the arcuate groove (50) has an arc of not less than 30°.