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Multi-layer composite film plane bag-making machine with mouth and bag-making process using the bag-making machine

A multi-layer composite film and flat belt technology, which is used in bag making, flexible container manufacturing, paper/cardboard containers, etc. Uniform, beautiful appearance and high yield

Active Publication Date: 2018-01-19
ZHONGSHAN NCA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different stretchability of the inner membrane and the outer membrane (the inner membrane is thinner), the inner membrane is easier to stretch and deform than the outer membrane during traction. After longitudinal sealing and horizontal sealing, the inner membrane shrinks more than the outer membrane, and the bag There will be wrinkles, which will cause difficulty in guaranteeing the heat sealing strength and cause problems such as leaking packages.

Method used

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  • Multi-layer composite film plane bag-making machine with mouth and bag-making process using the bag-making machine
  • Multi-layer composite film plane bag-making machine with mouth and bag-making process using the bag-making machine
  • Multi-layer composite film plane bag-making machine with mouth and bag-making process using the bag-making machine

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Embodiment Construction

[0035] refer to Figure 1 ~ Figure 3 , the present invention is a multi-layer composite film flat mouth bag making machine, comprising a frame 1, which also includes successively along the film direction:

[0036] Three discharge racks 2, wherein one discharge rack 2 is positioned at an end of frame 1, and other two discharge racks 2 are positioned at frame 1 both sides, certainly, the present invention is not limited to three discharge racks 2, can be two one or four or five or more;

[0037] Two endometrium traction servo devices 3 are used to draw the endometrium transported from the feeding rack 2, each endometrium traction servo device 3 independently pulls each layer of endometrium, and the specific details of the endometrium traction servo device 3 The quantity is determined according to the number of inner membrane layers of the bag to be made;

[0038] The first pulling rubber roller device 4 is arranged on the frame 1 and is used to pull the outer film transported ...

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PUM

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Abstract

The invention discloses a multi-layer composite film flat spout bag making machine and a bag making process using the bag making machine; by pre-drawing each layer of inner film and accurately controlling the tension of the inner film before production, The inner film is pulled together with the outer film to make the bag with a small tension, which ensures the uniformity of the tensile deformation of the inner and outer film.

Description

technical field [0001] The invention relates to a multi-layer composite film plane bag-making machine with mouth and a bag-making process using the bag-making machine. Background technique [0002] Existing multi-layer composite film bag-making machines generally adopt a plurality of unwinding racks, each unwinding rack has two material rolls, and after passing through the tension frame, they are drawn into bags together. Due to the different stretchability of the inner membrane and the outer membrane (the inner membrane is thinner), the inner membrane is easier to stretch and deform than the outer membrane during traction. After longitudinal sealing and horizontal sealing, the inner membrane shrinks more than the outer membrane, and the bag There will be wrinkles, which will make it difficult to guarantee the heat-sealing strength and cause problems such as leaking packages. In order to solve the above problems, the present invention provides a multi-layer composite film f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31B70/00B31B70/10B31B70/64B31B70/74B31B155/00B31B170/20
Inventor 徐长恒黄天涛张汉宁
Owner ZHONGSHAN NCA