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Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags

A technology of covering sheets and square bottom valves, which is applied in packaging, transportation and packaging, and the manufacture of rigid/semi-rigid containers, etc., can solve problems such as unprovided solutions, and achieve the effect of quality assurance

Active Publication Date: 2015-04-22
汤阴县鑫和包装材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And above-mentioned prior art all does not provide effective solution means

Method used

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  • Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags
  • Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] like figure 2 As shown, the conveying device (not shown in the figure) beats the delivery tube bag piece 9 on the platform plate 20 of the frame (not shown in the figure);

[0027] Installed on the top of the platform plate 20, perpendicular to the moving direction of the tube bag sheet 9, a coil feeding device is fixed in a cantilever bracket type; A cutting device composed of rotating hob 4;

[0028] Secondly, the welding and pressing device is composed of the negative pressure transfer roller 5 and the lower pressing roller 6, which is installed in the gap provided on the platform plate 20, and the tangent at the corresponding gap is roughly at the same level as the platform plate 20, and the cylinder The valve strip or bag bottom cover sheet cut from the bag piece 9 and the roll material 1 passes through the gap;

[0029] The negative pressure transfer roller 5 and the lower pressing roller 6 are respectively driven by the driving gear I7 and the driving gear II8...

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PUM

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Abstract

The invention provides a hot-gas welding press fit device suitable for valve strips or bag bottom covering sheets of woven plastic block bottom valve bags. The hot-gas welding press fit device is low in pressure and capable of achieving short stroke clutching. The hot-gas welding press fit device comprises a lower press fit roller corresponding to a negative-pressure transferring roller, a gap formed between the lower press fit roller and the negative-pressure transferring roller corresponds to a gap set on a rack flat pallet, the tangent of the lower press fit roller and the rack flat pallet are on the same horizontal line, and cylindrical bag sheets and valve strips or covering sheets pass through the gap; and the lower press fit roller implements clutch pressing actions with the negative-pressure transferring roller through a pair of four-bar mechanisms with cylinders serving as executive components.

Description

technical field [0001] The invention relates to a packaging machine, in particular to a pressing device for hot air welding of a bag bottom cover sheet in a bag making machine for a square bottom valve bag. Background technique [0002] The square bottom valve bag made of plastic composite woven cloth, the production steps are as follows figure 1 As shown, first, both ends of the tubular sheet are opened and folded into a hexagonal shape. The symmetrical triangular area in the hexagon is called "wrap angle" or "corner flap", and the rectangular part that is symmetrical up and down in the hexagon is called "horizontal flap"; the dividing line of the middle rectangular part of the hexagon Call it the "Bottom Fold Centerline". Secondly, at one end of the tube, a valve strip needs to be pasted; then, the two horizontal flaps are respectively folded along the center line of the bottom of the bag, cross-folded towards each other, and overlapped a little to form a rectangular bag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B31B1/64B31B50/64
Inventor 刘成臣
Owner 汤阴县鑫和包装材料有限公司
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