CN204433306U - A kind of heat sealing packaging bag - Google Patents
A kind of heat sealing packaging bag Download PDFInfo
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- CN204433306U CN204433306U CN201520069205.5U CN201520069205U CN204433306U CN 204433306 U CN204433306 U CN 204433306U CN 201520069205 U CN201520069205 U CN 201520069205U CN 204433306 U CN204433306 U CN 204433306U
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Abstract
The utility model relates to a kind of heat sealing packaging bag, and it comprises: outer bag and inner bag, and wherein inner bag is placed in outer bag, and outer bag and inner bag heat seal or sewn together after the ring limit infolding of oral area, inner bag offers several breather holes.The utility model can after packaging bag completes heat sealing by offering several breather holes on inner bag, air not emptying in bag is squeezed when internal pressure increases at stacking or transport operation automatically discharge, and relative insulation can be kept with the external world when normal pressure, outside air cannot be exchanged in a large number with in bag, thus prevent product and outside air bump contact in bag and the moisture absorption goes bad, and substantially do not increase the manufacturing cost of packaging bag, be conducive to applying of automated packaging equipment.
Description
Technical field
The utility model belongs to packaging bag field, particularly relates to a kind of heat sealing packaging bag that can adapt to automatic packing work requirement better.
Background technology
Along with the progress of science and technology and the day by day in short supply of social labor power, current in the package handling of the bagged product such as white sugar, chemical fertilizer, people have adopted more and more and have comprised automatic bag feeding, automatic weighing, self-sealing fully-automatic packaging equipment replacement hand-filling operation.The packaging bag that can meet automated packaging equipment requirement is at present that inner bag and outer bag are in sack portion heat seal or sewn together, and leak gas too much after sealing in order to avoid packaging bag, the packaging product generation moisture absorption is lumpd or goes bad, the sealing of packaging bag adopts heat seal to add the sealing process of sewing usually, namely first inner bag is sealed completely by heat seal, carry out again sewing above heat sealing line and outer bag sewed up together with inner bag, so both having avoided the intensity that gas leakage in turn ensure that stitching.But because packaging bag air wherein before automated packaging equipment heat sealing cannot be emptied completely at all, packaging bag internal pressure can be caused when sealing completes laggard windrow buttress or transport operation to increase owing to being squeezed, heat seal place of the inner bag of packaging bag at bottom and oral area is often risen brokenly by not emptying air, cause packaging bag to be leaked gas, thus it is rotten to make the product large area in packaging bag contact the moisture absorption with air.Just because of there are the problems referred to above, automated packaging equipment is caused to be difficult to so far be widely applied in the package handling of the easy moisture absorption product such as white sugar, fertilizer, cause the consumption of a large amount of social labor power, affect the raising of Business Economic Benefit, constrain the development of enterprise.
In order to address this problem, the denomination of invention that the applicant proposes: a kind of packaging bag (application number: propose following technical solution in patent of invention 201410208094.1) a: insulation strip is set to the inner bag of packaging bag, this insulation strip is arranged on the inner side of packaging bag body oral area, can prevent packaging bag body internal surface from being sealed by complete adhesion when heat sealing is carried out in packaging bag, heat sealing line retains a gap that can outwards be vented.This technical scheme solves the problems referred to above well, but also causes packaging bag manufacturing cost to rise to some extent, gives and uses link to bring certain cost increase, define certain obstacle to popularization.
Therefore, need a kind of heat sealing packaging bag can either meet the requirement of automated packaging equipment, again can after completing sealing, air not emptying in bag is squeezed when internal pressure increases at stacking or transport operation automatically discharge, and relative insulation can be kept with the external world when normal pressure, make outside air carry out few exchanging with in bag, prevent the article moisture absorption in bag from going bad, and substantially do not increase use link productive costs.But not yet find that there is the packaging bag that can meet above-mentioned requirements at present.
Summary of the invention
The purpose of this utility model is, solves the shortcomings and deficiencies that existing packaging bag exists, and provides a kind of heat sealing packaging bag being more applicable to automatic package handling.
The purpose of this utility model and solve its technical matters and realize by the following technical solutions.According to a kind of heat sealing packaging bag that the utility model proposes, it comprises: outer bag and inner bag, described inner bag is placed in described outer bag, and described outer bag and the heat seal or sewn together after the ring limit infolding of oral area of described inner bag, described inner bag offers several breather holes.
The purpose of this utility model and solve its technical matters and also can be applied to the following technical measures to achieve further.
Aforesaid heat sealing packaging bag, wherein said breather hole is 1 ~ 50, and aperture is 0.1 ~ 1mm, is be opened in the scope of 150mm below sack sealing line.
Aforesaid heat sealing packaging bag, wherein said inner bag is plastic film bag.
Aforesaid heat sealing packaging bag, wherein said outer bag is Polywoven Bag, plastic film coated bag or paper bag, and offers breather hole on plastic film coated bag or paper bag.
Aforesaid heat sealing packaging bag, the length of wherein said inner bag and width are all greater than length and the width 5 ~ 50mm of described outer bag, and described inner bag is not connected in bottom with described outer bag.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of heat sealing packaging bag of the utility model at least has following advantages and beneficial effect: heat sealing packaging bag of the present utility model can either adapt to the job requirements of fully-automatic packaging equipment, after heat sealing can being carried out completing weighing pack again, air not emptying in bag is squeezed when internal pressure increases at stacking or transport operation automatically discharge, and relative insulation can be kept with the external world when normal pressure, outside air cannot be exchanged in a large number with in bag, prevent product and outside air bump contact in bag and the moisture absorption goes bad, solve white sugar well, a difficult problem for the automatic packaging operation of the moisture-sensitive products such as fertilizer, and substantially do not increase the manufacturing cost of packaging bag, make fully-automatic packaging equipment can at white sugar, apply in the package handling of the moisture-sensitive products such as fertilizer, great lifting operating efficiency and quality, it is the labour power that society separates amplification quantity simultaneously, the economic benefit of effective raising enterprise.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of specification sheets, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of a preferred embodiment of a kind of heat sealing packaging bag of the utility model.
1: outer bag 2: inner bag
3: sack flanging hot pressing line 4: breather hole
Detailed description of the invention
For further setting forth the utility model for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of its detailed description of the invention of heat sealing packaging bag, structure, feature and the effect thereof that the utility model proposes, be described in detail as follows.
Referring to shown in Fig. 1, is the structural representation of a preferred embodiment of a kind of heat sealing packaging bag of the utility model.Heat sealing packaging bag of the present utility model forms primarily of outer bag 1 and inner bag 2, inner bag 2 is placed in outer bag 1, inner bag 2 offers several breather holes 4, conveniently with adapt to the automatic bag feeding of automated packaging equipment and open bag operation, outer bag 1 and inner bag 2 heat seal or sewn together after the ring limit infolding of oral area.Wherein, breather hole 4 can, according to the size of the size of packaging bag and required discharge tolerance, quantity 1 ~ 50, select flexibly, and these breather holes 4 are opened in the scope of 150mm below sack sealing line in the scope of aperture 0.1 ~ 1mm.
In order to make heat sealing packaging bag inner bag 2 when packaging product be not easy to be bursting at the collision, the length of inner bag 2 and width is made to be greater than length and the width 5 ~ 50mm of outer bag 1 respectively when packaging bag makes.In order to reduce manufacture difficulty, control the cost of manufacture of packaging bag further, the inner bag 2 of heat sealing packaging bag of the present utility model can not be connected in bottom with outer bag 1.
In a preferred embodiment of the present utility model, inner bag 2 is go out with pinprick the breather hole 4 that 10 ~ 20 diameters are 0.5mm when making, outer bag 1 is sewn together in bottom flap, when heat sealing packaging bag makes outer bag 1 and the oral area of inner bag 2 be inwardly be converted into a treaty 20mm ring limit and adopt hot-press equipment that this ring limit hot pressing is formed sack flanging hot pressing line 3, by outer bag 1 with inner bag 2 together with sack place adhesion (heat seal), also sewing device can be adopted sewn together for this ring limit, outer bag 1 and inner bag 2 is made to connect together with (sewing) at sack place, wherein the length of inner bag 2 and width are greater than length and the width 20mm of outer bag 1 respectively.
Outer bag 1 of the present utility model is Polywoven Bag, inner bag 2 is plastic film bags, according to the different needs of the demand in market and packaging product, outer bag 1 plastic film coated bag or paper bag can also be substituted, wherein on plastic film coated bag or paper bag, suitably offer breather hole simultaneously.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solutions of the utility model content, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (5)
1. a heat sealing packaging bag, it comprises: outer bag and inner bag, described inner bag is placed in described outer bag, and described outer bag and the heat seal or sewn together after the ring limit infolding of oral area of described inner bag, is characterized in that: on described inner bag, offer several breather holes.
2. heat sealing packaging bag according to claim 1, is characterized in that: described breather hole is 1 ~ 50, and aperture is 0.1 ~ 1mm, is be opened in the scope of 150mm below sack sealing line.
3. heat sealing packaging bag according to claim 1, is characterized in that: described inner bag is plastic film bag.
4. heat sealing packaging bag according to claim 1, is characterized in that: described outer bag is Polywoven Bag, plastic film coated bag or paper bag, and offers breather hole on plastic film coated bag or paper bag.
5. heat sealing packaging bag according to claim 1, is characterized in that: the length of described inner bag and width are all greater than length and the width 5 ~ 50mm of described outer bag, and described inner bag is not connected in bottom with described outer bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069205.5U CN204433306U (en) | 2015-01-30 | 2015-01-30 | A kind of heat sealing packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520069205.5U CN204433306U (en) | 2015-01-30 | 2015-01-30 | A kind of heat sealing packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204433306U true CN204433306U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520069205.5U Active CN204433306U (en) | 2015-01-30 | 2015-01-30 | A kind of heat sealing packaging bag |
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| Country | Link |
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| CN (1) | CN204433306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627497A (en) * | 2015-01-30 | 2015-05-20 | 广西力源宝科技有限公司 | Hot seal sealing packaging bag |
| CN111409959A (en) * | 2020-03-27 | 2020-07-14 | 郑利 | Method for preventing caking of chemical fertilizer and chemical product, anti-caking agent and application |
-
2015
- 2015-01-30 CN CN201520069205.5U patent/CN204433306U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627497A (en) * | 2015-01-30 | 2015-05-20 | 广西力源宝科技有限公司 | Hot seal sealing packaging bag |
| CN111409959A (en) * | 2020-03-27 | 2020-07-14 | 郑利 | Method for preventing caking of chemical fertilizer and chemical product, anti-caking agent and application |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |