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Machine for making textile bags

A technology for manufacturing machines and fabric bags, applied in the direction of textiles and papermaking, program-controlled sewing machines, sewing units, etc., can solve problems such as no machines

Inactive Publication Date: 2007-09-26
COUNCIL OF SCI & IND RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no dedicated machine for making bags that can do everything from mouth hemming with edge folds to parallel side seaming automatically and in a synchronized manner in a single unit

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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  • Machine for making textile bags
  • Machine for making textile bags
  • Machine for making textile bags

Examples

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Effect test

example 1

[0087] The embodiment of the bag making machine of the present invention as detailed above herein is used for bags made from jute fabric. Models of the Simultaneous Multi-Edge Folding and Sewing Unit (SMESU) feature a spiral-tapered double-edge folder, a double-strand seamer, one of which is oriented upside down for simultaneous seaming on two edges, and grouped Gripper and conveyor for pulling the fabric during the hemming operation. The different parameters and specifications of the bags produced by the machine of the invention are as follows:

[0088] Type of material entered; jute fabric

[0089] Width of jute fabric: 570mm

[0090] Type of Edge Fold: Double Fold

[0091] Pitch of chain stitch at mouth hem: 10mm

[0092] Pitch of overlock stitches at parallel sides: 12mm

[0093] Length of bag manufactured: 940mm

[0094] Width of bag produced: 570mm

[0095] Bags per hour: 150

[0096] The bags are made in a continuous process, so the throughput for making paralle...

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

A fabric bag making machine is the combination of a fabric cutting and conveying unit (FCCU) and a hemming table assembly which comprises a simultaneous multi-edge folding and sewing unit (SMESU), a middle folding and material guiding unit (MMGU) and a simultaneous parellel side sewing unit (SPSS) and carries out operations like cutting, hemming, middle folding and simultaneous parellel side sewing in synchronization mode. The sequential assembly operation of the combination unit is controlled by computer to achieve complete automation of all the manual, semi-automatic or partial-automatic processes. The bag making machine of the invention enables bag manufacturing in a single device; the fabric material is fed continuously by controlled expanding process, cut to required length, hem folded and sewn to form a hem opening, and then middle folded and parellel side sewn. The bag after parellel side sewing and opening folding is preferably used as bag with bottom and one side sewn for they have excellent qualities.

Description

technical field [0001] The present invention relates to a fabric bag making machine. In particular, the invention relates to bag making devices in which eg fabric cutting, hemming, center folding and parallel side stitching are performed automatically in one device. Background technique [0002] The main use of this invention is to form the hem opening by continuously feeding fabric material in a controlled unrolling process, cutting the fabric to the desired length, simultaneously making edge folds and sewing, followed by center folds and parallel side seams, This facilitates the manufacture of bags in a single device. Bags with parallel side seams and mouth flaps are preferred for bottom and side seamed bags because of their superior quality. [0003] A prior art search covering patent databases revealed the existence of some semi-automatic or partially automatic machines for making bags from materials such as plastic netting, fabric, cloth and the like. [0004] Refere...

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): D05B19/12D05B21/00D05B25/00D05B35/02D05B37/00B65H35/00B65H20/02B65H45/00
Inventor 穆拉里德哈・沙提韦吕普拉萨德・穆卡赫杰・纳拉扬什里卡什纳・帕特卡・乌梅什谢卡尔・罗伊・希奔杜韦松迪奥・兰杰瓦・拉杰什
Owner COUNCIL OF SCI & IND RES
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