CN2252778Y

CN2252778Y - Automatic discharging and anti-leakage package bag

Info

Publication number: CN2252778Y
Application number: CN 96218830
Authority: CN
Inventors: 吴传仪
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-08-07
Filing date: 1996-08-07
Publication date: 1997-04-23
Anticipated expiration: 2006-08-07

Abstract

The utility model relates to an automatic air exhaust and anti-leakage packing bag, which is composed of a filling opening and a bag body which is made of airtight soft plus materials, wherein air exhaust filtering material layer soft plus materials are embedded in the wall of the bag body of the upper part of one end of the filling opening, and an airtight moisture-proof soft plus material layer is covered and fixed on an air exhaust filtering material layer. The automatic air exhaust and anti-leakage packing bag has the advantages of low cost, good air exhaust performance and moisture-proof performance, and the plus materials can not leak.

Description

Self-bleeding prevents letting out packaging bag

A kind of self-bleeding is anti-lets out packaging bag, belongs to the packing container class, particularly relates to air-flow and drives the packaging bag of using on powder and the granules high-speed canning conveyor line.When carrying out the automation can,, require Filling bag that certain venting quality should be arranged because of air-flow has certain pressure with air-flow drive powder and granules.The open type can is arranged in the current prior art, and filling process falls behind, and does not match with apparatus for production line, reduce packaging efficiency greatly, dust and air-flow are gone out from sack, dust severe overweight in the workshop, the gross pollution working environment influences operator ' s health and wastes raw material, and is to improve can efficient, the packaging bag of latex glass wool cloth appears again, the packaging bag of this automatic filling bag, the cost height is for solving exhausting problem, in the exhaust of bag overpunch, because air inlet and exhaust overbalance cause air inlet many, exhaust is few, resistance is big, make the can deficiency in weight, can only irritate the about 43kg of bag as the packaging bag of 50kg, for supplying weight, increase packaging bag again, cost further improves again, simultaneously, still has the blowdown phenomenon in can exhaust and the transportation, contaminated environment wastes raw material.

CN9323137.0, the composite microporous bag of paper has solved the cost height of latex coated glass cloth packaging bag and the problem of printing quality difference, and it is to pass through the bonding ply of paper of adhesives on plastic woven cloth, solves the problem of moistureproof and printing quality.Also get a few row 0.1-0.5mm exhausting problem of through hole when solving can that be evenly distributed on bag top.But still the big air inlet of vapour lock is more than the exhaust phenomenon when existing can, and the blowdown problem is not uprooted, and punching back anti-soak properties reduce.

The purpose of this utility model is to reduce packing cost, can prevent blowdown by self-bleeding, solves and irritates a bag deficiency in weight, the novel package bag that anti-soak properties are good.

The utility model is achieved in that self-bleeding is anti-and lets out packaging bag that form by filling exit with the bag that the soft lining of airtight protection against the tide constitutes, embedding is connected with the soft lining of exhaust filter material layer in the bag wall of the top of filling exit one end.Be fixed with the soft lining of airtight moisture proof barrier in the covering of exhaust filter material layer outside.Cover the soft lining of airtight moisture proof barrier on the exhaust filter material layer, the airtight moistureproof bag soft lining outer with the exhaust filter material layer forms the exhaust passage to be interrupted connection mode.

The positive effect that implements of the present utility model, it utilizes the good advantage of airtight anti-soak properties of plastic-coated woven cloth, utilizes plastic knitting to be furnished with certain exhaust performance embedding again simultaneously and is connected in bag top, has solved the exhausting problem when irritating bag, air inlet and exhaust balance, the can weight standard improves can efficient, at storage and transportation blowdown not, do not waste raw MAT'L, free from environmental pollution, reduce dust in the workshop air greatly, improve workman's working environment.The airtight moisture proof barrier of one deck is arranged again on the exhaust filter material layer, after can is toppled over, after a small amount of residual air in packaging bag top is discharged from, the inner negative pressure that forms of packaging bag, exhaust filter structure layer and moisture proof barrier are close to and are one under external atmospheric pressure and raw material are splashed the mutual action of expansive force, play the moistureproof effect of letting out of preventing in storage and transportation.

Fig. 1 self-bleeding is prevented blowdown packaging structure scheme drawing;

Fig. 2 packaging bag A-A cross-sectional view.

Fig. 3 embodiment two self-bleedings are prevented blowdown package construction scheme drawing;

The self-bleeding of Fig. 4 embodiment three is prevented blowdown package construction scheme drawing.

Embodiment one, and Fig. 1 and Fig. 2 cut open figure structure schematic representation for anti-structural representation and the A-A that lets out packaging bag of self-bleeding.1 is the filling exit of packaging bag among the figure, and 2 is bag, and 3 for embedding is connected bag top exhaust filter material layer, and 4 for fixedly covering the moisture proof barrier on the exhaust filter material layer, and 5 is the interruption connection mode static line on moisture proof barrier and the bag 2.(the two sealed sliding running-fit) powder or granules are along with the air-flow that certain pressure is arranged pours bag 2 bottoms after filling exit 1 is inserted in filling tube, material accumulates in the bag, air-flow returns bag 2 tops, automatically discharge from exhaust filter material layer 3, be interrupted along moisture proof barrier and bag and captive joint the exhaust passage that line forms and discharge outside the bag, exhaust filter material layer 3 embeds and is connected bag top, suitably select the area size and the specifications and models of exhaust filter material layer to reach air inlet and exhaust balance, in this embodiment, the exhaust filter structure layer on bag top adopts the plastic woven cloth of every sq cm 18 buttons, all the other linings in the bag 2 except that the exhaust filter material layer and moistureproof overplate are selected every sq cm 13 buttons of plastic-coated or the plastic woven cloth of 14 buttons for use.

Embodiment two, and its structural representation is seen Fig. 3 and 3-1, and the meaning of each numbering is identical with embodiment 1 among the figure, not repeated description.Different is the upper left corner of exhaust filter material layer at bag 2, with embodiment 1 some difference.It can self-bleeding process is identical with embodiment one, no longer repeats.

Embodiment three, and its structural representation is seen Fig. 4 and 4-1, and meaning of each numbering and self-bleeding process no longer repeat with embodiment one on the figure, have be that exhaust filter material layer 3 embeds the centre that is connected bag 2 tops.

Claims

1, a kind of self-bleeding is anti-lets out packaging bag, forms by filling exit with the bag that the soft lining of airtight protection against the tide constitutes, and feature of the present utility model is to embed in the bag wall of the top of filling exit one end and be connected with the soft lining of exhaust filter material layer.

2, packaging bag according to claim 1 is characterized in that, covers in exhaust filter material layer outside and is fixed with the soft lining of airtight moisture proof barrier.

3, packaging bag according to claim 1 and 2 is characterized in that, covers the soft lining of airtight moisture proof barrier on the exhaust filter material layer, and the airtight moistureproof bag soft lining outer with the exhaust filter material layer forms the exhaust passage to be interrupted connection mode.