Inward mouth folding device for bag body

A bag body and folding technology, which is applied in the field of automatic production equipment for bag bodies, can solve the problems of time-consuming, labor-intensive, and time-consuming production processes for manual folding and sewing, and saves time and labor costs.

Inactive Publication Date: 2021-03-26
陈坚承
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, manual folding of the bag opening and sewing is very time-consuming, making the existing production process of woven bags time-consuming and labor-intensive
[0003] Therefore, the production process of the woven bag of the prior art really needs to be improved

Method used

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  • Inward mouth folding device for bag body
  • Inward mouth folding device for bag body
  • Inward mouth folding device for bag body

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Experimental program
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Effect test

Embodiment Construction

[0029] The technical means adopted by the present invention to achieve the intended creation purpose are further described below in conjunction with the accompanying drawings and preferred embodiments of the present invention.

[0030] see figure 2 , Figure 6 and Figure 8 As shown, the folding device in the bag of the present invention is used to make a bag body A made of a flat plastic material (such as figure 1 As shown) the cutting opening A1 and the folding portion A2 adjacent to the periphery of the cutting opening A1 are folded toward the inside of the bag body A together, and in this embodiment can be further folded inward to the folding portion inside the bag body A A2 is welded and fixed on the inner wall surface of the bag body A (the state where the folded part A2 is welded and fixed is as follows: Figure 10 shown), the bag body A is preferably a plastic woven bag; the folding device in the bag includes a bag opening mechanism 10, a first folding assembly 20 ...

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PUM

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Abstract

The invention provides an inward mouth folding device for a bag body. The inward mouth folding device comprises a bag opening mechanism, a first mouth folding assembly and a second mouth folding assembly; the bag opening mechanism comprises two bag opening plates which are arranged in a spaced mode and can be opened and closed away from each other or towards each other; each bag opening plate is provided with at least one vacuum suction hole; the first mouth folding assembly comprises two abutting pieces, the two abutting pieces are pivoted to the two bag opening plates respectively, and eachabutting piece can rotate to the position between the two bag opening plates; the second mouth folding assembly is located on one side of the bag opening mechanism and comprises two bag mouth abuttingrods; the bag mouth abutting rods are arranged in a spaced mode along the pivoting axis of the abutting pieces; and the two bag mouth abutting rods can rotate to the position between the two bag opening plates and can rotate in the direction away from each other. Therefore, a bag mouth of a flat semi-finished woven bag can be automatically opened and folded inwards, and the time and labor cost required for producing the bag body are saved.

Description

technical field [0001] The invention relates to automatic production equipment for bags, in particular to a device for inwardly folding the mouths of plastic woven bags such as rice bags or feed bags. Background technique [0002] The plastic woven bag is made of plastic flat wire through warp and weft weaving. It is a light and durable packaging bag. In the production process of the woven bag, the cut flat wire burrs will remain at the periphery of the pocket of the semi-finished woven bag. In order to avoid the exposure of the raw edge of the bag mouth, the existing woven bag needs to manually open the bag mouth of the flat semi-finished woven bag at the end of the production process, and then fold the peripheral edge of the bag mouth with the raw edge towards the bag body. Finally, the folded part is manually sewn and fixed, so that the periphery of the finished bag mouth of the woven bag has a smooth and flat appearance. However, manual folding and sewing are very time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31B70/00B31B70/26
CPCB31B70/003B31B70/26
Inventor 陈坚承
Owner 陈坚承
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