Double-film bag making machine

A bag-making machine and double-layer film technology, applied in the direction of envelope/bag manufacturing machinery, paper/cardboard containers, containers, etc., to achieve the effect of convenient operation, good effect and compact structure

Inactive Publication Date: 2010-06-09
WUXI HONGCHANG PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a double-layer insert si...

Method used

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Examples

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Embodiment Construction

[0038] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0039] figure 1 It is the overall structure schematic diagram of the double film bag-making machine of the present invention, as figure 1 As shown, the inner layer film used in the present invention, that is, the tube film, is placed at the far right end of the machine, fixed on the air shaft in the form of a roll film, and the air shaft is repositioned on the movable frame of the first discharging device a. The frame is equipped with a constant tension control system and a photoelectric automatic centering and deviation correction system composed of a fixed frame. The film material of the inner film is sent out by the discharge motor through the synchronous belt pulley to the discharge rubber traction roller assembly. Its speed control (fine adjustment) is completed by the subsequent tension pendulum roller. The tension pendulum ro...

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Abstract

The invention relates to a double-film bag making machine. The inner layer of the double-film bag making machine is a cylindrical film. Inner and outer films of the double-film bag making machine are discharged and conveyed by a discharging device and then are overlapped together to enter a folding device; the folded inner and outer films are fed in a middle seam sealing device for middle-seam sealing; then the sealed inner and outer films are fed in an insertion forming device which performs insertion processing on the two sides of each of the inner and outer films; and the cylindrical film after insertion formation is orderly fed in a transverse sealing device and a cutting device to finally form a finished product. The insertion forming device comprises a first tension roller swinging mechanism for converting intermittent movement produced in the middle-seam sealing into continuous movement, an insertion mechanism for the insertion formation and a second tension roller swinging mechanism for converting the continuous movement produced in the insertion formation into the intermittent movement. The insertion forming device of the invention adopts a vertical structure; and gravity suspension is adopted by a middle template. Actual use shows that the insertion forming device has the characteristics of excellent insertion effect, compact structure and convenient operation.

Description

technical field [0001] The invention relates to a bag-making machine, specifically, an inner layer of a tube film made of polyethylene PE (Polyethylene), an outer layer of a sheet film made of polyethylene terephthalate PET (polyethylene terephthalate) The utility model relates to a co-extruded film or aluminum-plastic composite film, or a double-layer film bag-making machine with a composite side of paper and plastic, belonging to the field of flexible packaging bag-making machines. Background technique [0002] With the progress of society, people's awareness of environmental protection and material safety has increased, and the packaging requirements for various objects have also been continuously improved and updated. In the past, many barrels (metal barrels or wooden plastic barrels) were gradually changed into special types of soft plastic bags for transportation and recycling. Since the inner layer is PE tube film and the outer layer is PET sheet film, the market pro...

Claims

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Application Information

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IPC IPC(8): B31B39/02B31B39/26B31B39/60B31B39/74
Inventor 王飞鸿王福仁
Owner WUXI HONGCHANG PRECISION MACHINERY
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