CN112481804A

CN112481804A - Weft yarn cutting device of warp knitting machine for weaving fabric

Info

Publication number: CN112481804A
Application number: CN202011552187.8A
Authority: CN
Inventors: 沈王龙; 潘忠明; 程福珍; 徐峰; 徐祯辉; 陈徐叶
Original assignee: Zhejiang Shengdannu New Material Technology Co ltd
Current assignee: Zhejiang Shengdannu New Material Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-03-12
Anticipated expiration: 2040-12-24
Also published as: CN112481804B

Abstract

The invention provides a weft cutting device of a warp knitting machine for weaving fabrics, which comprises a machine base, a plurality of guide wire rollers with a guiding function, a tension sensor for monitoring the tension of yarns, a cutting mechanism for cutting off the wefts, a fixed length component for clamping the wefts and a pressing component for pressing the wefts down to the cutting mechanism. The device cuts off the weft yarn at a fixed length through the cooperation of various mechanisms, greatly saves raw materials, and avoids the waste of the raw materials.

Description

Weft yarn cutting device of warp knitting machine for weaving fabric

Technical Field

The invention belongs to the technical field of warp knitting, and particularly relates to a weft yarn cutting device of a warp knitting machine for weaving fabric.

Background

The warp knitting machine is provided with a cloth cutting device which can cut the warp knitting fabric to meet the specified width requirement, but the cloth cutting device can not cut off the weft yarn sent from a weft creel of the warp knitting machine in a fixed length during the work, and particularly when the weft yarn material is expensive, the cloth cutting device often causes great waste.

Disclosure of Invention

The invention aims to provide a weft cutting device of a warp knitting machine for weaving fabric, which cuts weft at fixed length through the cooperation of a plurality of mechanisms, greatly saves raw materials and avoids the waste of the raw materials.

The technical scheme of the invention is as follows: a weft cutting device of a warp knitting machine for weaving fabrics comprises a machine base, a plurality of guide wire rollers with guiding function, a tension sensor for monitoring the tension of yarns, a cutting mechanism for cutting off the wefts, a fixed length assembly for clamping the wefts and a pressing assembly for pressing the wefts down to the cutting mechanism.

Firstly, the device can cut off woof fixed length when the warp knitting is sent out, monitors woof tension through tension sensor earlier, and when tension was enough, the fixed length subassembly was pressed from both sides the woof of shutdown mechanism tightly, thereby pushes down the subassembly and pushes down the woof to the shutdown mechanism on cut off the woof, and the device cuts off the woof fixed length through the cooperation of multiple mechanism, has saved raw and other materials greatly, has avoided the waste of raw and other materials.

Furthermore, the cutting mechanism comprises a cutter, a propulsion cylinder and a clamp, the propulsion cylinder is fixed on the base, the cutter is clamped at the upper end of the clamp, and the lower end of the clamp is connected with a telescopic rod of the propulsion cylinder. When the pressing mechanism presses the weft yarn, the air cylinder is pushed to push the cutter upwards, and the weft yarn is cut off rapidly.

Furthermore, the pushing assembly comprises a lower pressing block and a lower pressing cylinder which are symmetrically arranged on two sides of the cutting mechanism, the lower end of the lower pressing cylinder is fixed on the base, and the lower end face of the lower pressing block is connected with a telescopic rod of the lower pressing cylinder. And the lower pressing block is pulled downwards by the lower pressing cylinder to press the weft yarns downwards to the cutting mechanism.

Furthermore, the lower end surface of the lower pressing block is in an inwards concave arc shape. The circular arc-shaped pressing surface can prevent the weft yarns from falling off outwards when the weft yarns are pressed downwards, and the circular arc-shaped pressing surface can wrap the weft yarns.

Furthermore, the fixed length subassembly including fix the grip block and the die clamping cylinder that two longitudinal symmetries set up in the push down subassembly outside, be located and be equipped with the connecting rod on the grip block of downside and be connected fixedly with the push down subassembly, the grip block that is located the upside is connected with die clamping cylinder, die clamping cylinder fixes on the push down subassembly. The clamping cylinder pushes the clamping block on the upper side to be attached to the clamping block box on the lower side so as to clamp the weft yarn.

The warp knitting machine weft yarn cutting device for weaving the fabric has the advantages that:

1. the device cuts off the weft yarn at a fixed length through the cooperation of various mechanisms, greatly saves raw materials, and avoids the waste of the raw materials.

2. The circular arc-shaped pressing surface can prevent the weft yarns from falling off outwards when the weft yarns are pressed downwards, and the circular arc-shaped pressing surface can wrap the weft yarns.

Drawings

Fig. 1 is a schematic configuration diagram of a weft cutting device of a warp knitting machine for weaving a fabric.

Fig. 2 is a schematic view of a hold-down block.

In the figure: 1. a wire guide roller; 2. a clamping block; 3. a connecting rod; 4. a clamping cylinder; 5. pressing down the air cylinder; 6. propelling the cylinder; 7. a machine base; 8. a clamp; 9. a cutter; 10. pressing the block; 11. a tension sensor.

Detailed Description

As shown in fig. 1 and 2, the technical scheme of the invention is a weft cutting device of a warp knitting machine for weaving fabrics, which comprises a machine base 7, a plurality of guide wire rollers 1, a tension sensor 11 for monitoring the tension of yarns, a cutting mechanism for cutting off the wefts, a fixed length component for clamping the wefts and a pressing component for pressing the wefts down to the cutting mechanism, and is characterized in that the wire rollers 1 are fixed at a wire feeding end and a wire feeding end of the machine base 7, the tension sensor 11 is fixed on the wire rollers 1 at the wire feeding end, the cutting mechanism is positioned in the middle of the machine base 7, the pressing components are positioned at two sides of the cutting mechanism, and the fixed length components are fixed at two sides of the pressing component.

The cutting mechanism comprises a cutter 9, a propulsion cylinder 6 and a clamp 8, the propulsion cylinder 6 is fixed on the base 7, the cutter 9 is clamped by the upper end of the clamp 8, and the lower end of the clamp 8 is connected with a telescopic rod of the propulsion cylinder 6. When the pressing mechanism presses down the weft yarn, the air cylinder 6 is pushed to push the cutter 9 upwards, and the weft yarn is cut off rapidly.

The lower pressing assembly comprises a lower pressing block 10 and a lower pressing cylinder 5 which are symmetrically arranged on two sides of the cutting mechanism, the lower end of the lower pressing cylinder 5 is fixed on the base 7, and the lower end face of the lower pressing block 10 is connected with a telescopic rod of the lower pressing cylinder 5. The lower pressing block 10 is pulled downwards by the lower pressing cylinder 5 to press the weft down to the cutting mechanism.

The lower end surface of the lower pressing block 10 is in the shape of an inwards concave arc. The circular arc-shaped pressing surface can prevent the weft yarns from falling off outwards when the weft yarns are pressed downwards, and the circular arc-shaped pressing surface can wrap the weft yarns.

The fixed length subassembly including fix 2 and die clamping cylinder 4 that two longitudinal symmetries set up in the push down subassembly outside, be located and be equipped with connecting rod 3 on the grip block 2 of downside and be connected fixedly with the push down subassembly, the grip block 2 that is located the upside is connected with die clamping cylinder 4, die clamping cylinder 4 is fixed on the push down subassembly. The clamping cylinder 4 pushes the upper clamping block 2 to abut against the lower clamping block 2 box, so that the weft yarn is clamped.

The device cuts off the weft yarn at a fixed length through the cooperation of various mechanisms, greatly saves raw materials, and avoids the waste of the raw materials.

Firstly, the device can cut off the woof fixed length when the warp knitting is sent out, monitors woof tension through tension sensor 11 earlier, and when tension was enough, the fixed length subassembly was pressed from both sides the woof of shutdown mechanism tightly, thereby pushes down the subassembly and pushes down the woof to the shutdown mechanism on cut off the woof, and the device cuts off the woof fixed length through the cooperation of multiple mechanism, has saved raw and other materials greatly, has avoided the waste of raw and other materials.

Claims

1. A weft cutting device of a warp knitting machine for weaving fabrics comprises a machine base, a plurality of guide wire rollers with guiding function, a tension sensor for monitoring the tension of yarns, a cutting mechanism for cutting off the wefts, a fixed length assembly for clamping the wefts and a pressing assembly for pressing the wefts down to the cutting mechanism.

2. A warp knitting machine weft cutting device for weaving fabric according to claim 1, characterized in that: the cutting mechanism comprises a cutter, a propulsion cylinder and a clamp, the propulsion cylinder is fixed on the base, the cutter is clamped at the upper end of the clamp, and the lower end of the clamp is connected with a telescopic rod of the propulsion cylinder.

3. A warp knitting machine weft cutting device for weaving fabric according to claim 1, characterized in that: the lower pressing assembly comprises lower pressing blocks and lower pressing cylinders which are symmetrically arranged on two sides of the cutting mechanism, the lower ends of the lower pressing cylinders are fixed on the base, and the lower end faces of the lower pressing blocks are connected with telescopic rods of the lower pressing cylinders.

4. A warp knitting machine weft cutting device for weaving fabric according to claim 3, characterized in that: the lower end surface of the lower pressing block is in the shape of an inwards concave arc.

5. A warp knitting machine weft cutting device for weaving fabric according to claim 1, characterized in that: the fixed length subassembly including fix two grip blocks and die clamping cylinder that the longitudinal symmetry set up in the push down subassembly outside, be located and be equipped with the connecting rod on the grip block of downside and be connected fixedly with the push down subassembly, the grip block that is located the upside is connected with die clamping cylinder, die clamping cylinder fixes on the push down subassembly.