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A kind of bag making process of square bottom bag

A square bottom bag and process technology, which is used in bag making operations, container manufacturing machinery, box making operations, etc., can solve the problems of increased processing time, cumbersome, and reduced production efficiency of plastic bag making machines, to simplify the process and equipment. The effect of investment and improvement of machining accuracy

Active Publication Date: 2017-05-31
WUXI HONGCHANG PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing square-bottom bag making process, the bottom of the square-bottom bag is generally cut and heat-sealed to the membrane module separately. This process requires a separate bottom cutting mechanism, conveying mechanism, positioning mechanism, etc., which is cumbersome. At the same time, the processing time is increased, and the production efficiency of the plastic bag making machine is greatly reduced.

Method used

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  • A kind of bag making process of square bottom bag
  • A kind of bag making process of square bottom bag
  • A kind of bag making process of square bottom bag

Examples

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0046] Such as Figure 1-Figure 19 Shown, a kind of square bottom bag making process is characterized in that comprising the following steps:

[0047] 1) Input the bottom film 1, and the bottom film 1 is conveyed along the feeding direction;

[0048] 2), making side material 2, such as figure 1 with figure 2 As shown, fold and flatten both sides of the film for making side material 2 toward the center line 4 of the film, fold the edges on both sides and connect them to the center line 4 of the film, and cut the folded and flattened film according to the set length Form the side material 2; send the side material 2 laterally to the upper surface of the ...

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Abstract

The invention discloses a square bottom bag making process. The square bottom bag making process is characterized by comprising the following steps of 1 inputting a base film, 2 manufacturing edge materials, 3 covering an upper film, 4 heat-pressing and turning edges and corners, 5 turning the edge of the upper film, 6 turning the edge material of the base film, 7 heat-sealing edges and corners, 8 turning the upper bottom edge and heat-sealing the bottom edge, 9 conducting edge heat-sealing on the edge materials and 10 performing cutting to make bags. The edge materials forming the bottom face of each bag body are reserved on two sides of the bottom film, the edge materials are directly turned over to cover the turned areas of the edges and corners after the edges and corners are turned, and then follow-up operation is perform. Therefore, bottom face cutting and a positioning mechanism are omitted, and machining accuracy can be also improved while technological process is simplified and device cost is reduced.

Description

technical field [0001] The invention relates to a square bottom bag making process. Background technique [0002] In the existing square-bottom bag making process, the bottom of the square-bottom bag is generally cut and heat-sealed to the membrane module separately. This process requires a separate bottom cutting mechanism, conveying mechanism, positioning mechanism, etc., which is cumbersome. At the same time, the processing time is increased, and the production efficiency of the plastic bag making machine is greatly reduced. The prior art is badly in need of a process simplification and a square-bottom bag-making process with high production efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the defects in the prior art and provide a square bottom bag making process with simplified process and high production efficiency. [0004] In order to achieve the above object, the technical solution of the present invention is to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31B70/04B31B70/20B31B70/64B31B70/74B31B50/04B31B50/20B31B50/64
Inventor 王飞鸿林秋
Owner WUXI HONGCHANG PRECISION MACHINERY