Synchronous setting circular knitting machine and method for producing knitted fabric containing thermoplastic fibers through same

A technology for circular knitting and fabric knitting, which is applied in shaping/stretching circular fabrics, knitting, weft knitting, etc. It can solve the problems of reducing heat energy utilization, affecting fabric quality, deteriorating the lubrication conditions of knitting equipment and the dimensional accuracy of needle cylinders, etc. problems, to achieve the effect of improving the utilization rate of fabrics

Active Publication Date: 2014-03-26
QINGDAO JIFA GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current technological process has the following defects: Since the pre-setting process is completed on the stenter setting machine or the cylinder high-temperature setting machine in the dyeing and finishing workshop, the equipment investment is large, the process flow is long, the energy consumption is high, and the production cost is high.
Due to the limited expansion of knitted fabrics and the limitation of the internal space of the needle cylinder of the equipment, the rollers continue to heat the fabric when the knitting equipment is shut down, resulting in local over-setting of the knitted fabric (the knitting equipment is frequently shut down due to yarn breakage or other reasons, which One defect seriously affects the quality of the fabric)
The synchronous shaping device disclosed in this invention patent application has no heat insulation device. On the one hand, heat loss reduces the utilization rate of heat energy and increases energy consumption; It has a great influence on the service life of the knitting machine and the quality of the fabric
In addition, the invention patent application does not specifically disclose the production process and shaping process of knitted fabrics containing thermoplastic fibers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Synchronous setting circular knitting machine and method for producing knitted fabric containing thermoplastic fibers through same

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specific Embodiment approach

[0040] A specific embodiment of the method for producing knitted fabrics containing thermoplastic fibers by using the above-mentioned synchronously shaped circular knitting machine of the present invention includes the following A process or B process:

[0041] Process A: Use the above-mentioned synchronous shaping circular knitting machine to carry out synchronous presetting of weaving→dyeing→dehydration→cutting→open-width post-setting, and finally obtain the finished open-width knitted fabric;

[0042] Process B: Using the above-mentioned synchronous sizing circular knitting machine to carry out synchronous pre-sizing → dyeing → stripping

[0043] Water→wet stretching→drying→cylindrical shrinking and calendering, and finally the finished circular knitted fabric is obtained.

[0044] Specifically, the aforementioned weaving synchronous pre-setting process includes the following steps: the circular knitting machine is started, and the cylindrical knitted fabric moves to the pu...

Embodiment 1

[0059] Install the synchronous sizing device of this above-mentioned embodiment on 18 inches of 28G knitting single-sided small circular knitting machines. The weaving fabric is 40S cotton + 20D spandex high elastic single jersey. The rotating speed of the single-sided small circular knitting machine is 20 rpm, the number of equipment channels is 52, the cloth lowering speed is 13 mm / s, the height of the heat setting roller is 300 mm, the diameter of the heat setting roller is 370 mm, and the setting temperature is At 200°C, the qualitative time for the circular knitted fabric to pass through the outer surface of the heat setting roller is 23 seconds. The width of the finished circular knitted fabric is 520--530 mm. The fabric is then dyed—dehydrated—wet stretched—dried—tubular pre-shrunk and calendered, and finally the finished circular knitted fabric has a width of 460 mm and a square meter weight of 160 grams per square meter. The appearance quality, shrinkage rate and sq...

Embodiment 2

[0061] Install the synchronous sizing device of this above-mentioned embodiment on 30 inches of 28G knitting single-sided circular knitting machines. The weaving fabric is 150D polyester + 30D spandex high elastic single jersey. The rotary speed of the single-sided circular knitting machine is 16 rpm, the number of equipment channels is 90, the cloth lowering speed is 20 mm / s, the height of the heat setting roller is 320 mm, the diameter of the heat setting roller is 600 mm, and the setting temperature is 190 °C, the qualitative time for the circular knitted fabric to pass through the outer side of the heat setting roller is 16 seconds. The width of the finished circular knitted fabric is 900--930 mm. The fabric is then dyed—dehydrated—split—stentered, and finally the flat-width knitted finished fabric is obtained with a width of 1750 mm and a square meter weight of 180 grams per square meter. The appearance quality, shrinkage rate and square meter weight of the fabric all m...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a synchronous setting circular knitting machine and a method for producing knitted fabric containing thermoplastic fibers through the synchronous setting circular knitting machine. The synchronous setting circular knitting machine comprises a rack, a creel support, a needle cylinder, a dragging coiling device, a control cabinet and a synchronous setting device and is characterized in that the synchronous setting device comprises a heat setting roller which is arranged on the creel support and additionally provided with a lifting device, the heat setting roller is connected with a heat setting roller control cabinet, the heat setting roller is located above a dragging fabric coiling roller in the dragging coiling device and driven by the lifting device to ascend and descend, the axis of the heat setting roller coincides with the axis of the needle cylinder, and the outer diameter of the heat setting roller is smaller than the inner diameter of the needle cylinder. According to the circular knitting machine, fabric knitting and heat setting can be performed at the same time, the synchronous setting device is designed reasonably, the knitted fabric can be evenly and continuously heated, and heat setting efficiency is high; pre-setting of the dyeing and finishing working procedure in the production technology is omitted, the technological process is simplified, production cost of the fabric can be reduced substantially, meanwhile consumption is reduced, and the sales-output ratio of ready-to-wear clothes and the utilization rate of the fabric are improved.

Description

technical field [0001] The invention belongs to the technical field of production technology of knitting machines and knitted fabrics, and in particular relates to a synchronously shaped circular knitting machine and a method for producing knitted fabrics containing thermoplastic fibers. Background technique [0002] During the process of parking, storage and transportation of knitted fabrics containing thermoplastic fibers, the surface of the knitted fabrics is irregular and wrinkled due to various stress extrusions, so most knitted fabrics containing thermoplastic fibers need to be dyed before dyeing. Preformed for good dimensional stability and flat appearance. At present, there are two conventional technological processes for knitted fabrics containing thermoplastic fibers: 1. Weaving→cutting→open width presetting→seaming→dyeing→cutting→open width post-setting, and finally obtain the finished open width knitted fabric; 2. Weaving → cylinder high temperature pre-setting ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D04B15/00D06C5/00
Inventor 武玉勤杨为东解珍香于希超文元庆邹斌
Owner QINGDAO JIFA GROUP
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