A kind of collapsible flat package freshness protection package
The utility model relates to a kind of flat package freshness protection package, particularly relates to a kind of collapsible flat package freshness protection package.
In the prior art, flat package freshness protection package is by the straight coiling growth of paper tube core roll shape, and the length of paper tube core is equivalent to the width of freshness protection package, as shown in Figure 1, a series of specification is arranged, as 30cm * 38cm100 only or 25cm * 30cm150 only etc., bag with bag between be provided with the fracture dotted line, the product that has is also done external packing with carton, for easy to use, on carton, have opening, can in opening, extract sack out, utilize the fracture dotted line to be easy to sack is torn it down.Its weak point is that the length of package freshness protection package is longer, is generally 25cm or 30cm, uses often to make the people feel inconvenience, puts and also accounts for bigger place; If the width of freshness protection package continue to increase, it is long that the length of this package product will seem, uses and to deposit the shortcoming of inconvenience just more obvious, thereby also limited freshness protection package and develop to big specification direction; On the other hand, the used paper tube core of the straight rolling of paper tube core takies bigger space, and except that the materials increase cost of paper tube core itself, it also makes the product chap, causes volume to increase, and corresponding external packing materials also can increase, and therefore, cost are further increased.
Also has the folding package freshness protection package of a kind of organ (as shown in Figure 2) in the market, before the back cover operation, fold, again by back cover line fixed fold state, though it has reduced the width dimensions of freshness protection package, the length that is the package product reduces, but organ is collapsible because folding structure causes near the freshness protection package stress concentration interface point A that the back cover line folds, and the plastic film that freshness protection package adopts as thin as a wafer, therefore, the bag very easily seepage that just slightly is stressed at an end reduces fresh-keeping quality; In addition, organ type freshness protection package foldable structure is fixed by the back cover line, also influences the effective usage space of freshness protection package on Width.
First purpose of the present utility model provides a kind of collapsible flat package freshness protection package, and it can reduce the length of flat package freshness protection package, makes the specification of freshness protection package not be subjected to the restriction of the greatest limit width of traditional freshness protection package.
Second purpose of the present utility model provides the flat package freshness protection package of a kind of collapsible centreless, further to dwindle the volume of product, the external packing that makes product to best quality and more the direction of health develop.
First purpose of the present utility model realizes by following technical measures: between the back cover operation and coiling operation of the flat package freshness protection package of tradition, the additional fold device, original open and flat freshness protection package is folded up in required ratio, it comprises continuity freshness protection package and tube core, freshness protection package is wound on the tube core, it is characterized in that: freshness protection package adopts flat back cover line, on tube core, become roll shape in folded roll on the Width, the width of package freshness protection package and the length of used tube core are all reduced, and the ratio that reduces is decided by folding mode.
The folding mode of freshness protection package described in the utility model on Width can adopt the folded in half formula, also can adopt both sides doubling formula, even can also adopt the form of three foldings.
Second purpose of the present utility model can realize by following technical measures: on the basis of above-mentioned collapsible flat package freshness protection package, remove tube core wherein, use additional removable jew core winding apparatus instead and carry out rolling, when being wound up into the size that needs, extraction core volume makes the package freshness protection package not have tube core, can save the shared space of tube core, small product size is further dwindled, and required external packing is also less.
The utility model can also be mixed the box-packaged of various practicalities reasonable in design, makes product not only exquisiteness but also health.
The utility model compared with prior art has following advantage: (1) reduces the length of flat package freshness protection package owing to adopt folding mode, its length than the developed width of bag can reduce three at least/one or more.When the freshness protection package employing was half-and-half rolled over, width can be reduced to half of original width; When adopting the both sides doubling, the width of package freshness protection package is slightly larger than half of original width; When adopting three folding forms, the width of package freshness protection package is reduced to 1/3rd of original width.Dexterous convenient when (2) it uses, be easy to deposit, also can realize the small size packing of big specification freshness protection package, make freshness protection package no longer be subjected to the restriction of greatest limit width.(3) owing to adopt flat back cover line, the distribution of stress at back cover line place is even, has avoided the organ type freshness protection package to have the deficiency of focal point of stress at back cover line place, even adopt at freshness protection package under the situation of plastic film as thin as a wafer, also be difficult for seepage takes place, to guarantee fresh-keeping quality; In addition, adopt flat back cover line after, foldable structure is not subjected to the influence of back cover line, therefore, effective usage space of freshness protection package can not reduce.(4) because after the length of package freshness protection package and volume reduce, all corresponding minimizing of packing materials and tube core materials, thereby cost-cutting; In addition, if further adopt the centreless package, small product size will be dwindled widely, compared with prior art, under the situation of same specification, quantity, centreless package product not only reduces on length, and on radial dimension also near in addition less than size of the prior art, whole volume reduces greatly, thereby cost is further reduced; (5), improving the class of collapsible flat package freshness protection package, and guarantee that product more meets hygienic standard, avoids cross pollution because the dwindling of small product size can make product external packaging more be tending towards best quality.
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the unfolding assumption diagram of flat package freshness protection package traditional in the prior art.
Fig. 2 is the unfolding assumption diagram of the collapsible package freshness protection package of organ in the prior art.
Fig. 3 is the unfolding assumption diagram of first embodiment of the present utility model.
Fig. 4 is the unfolding assumption diagram of second embodiment of the present utility model.
Fig. 5 is the unfolding assumption diagram of the 3rd embodiment of the present utility model.
Fig. 6 is the outside drawing of the two band carton packages of the utility model embodiment.
Fig. 7 is the outside drawing of the two band packing boxes of the utility model embodiment.
Fig. 8 is the unfolding assumption diagram of the 4th embodiment of the present utility model.
Collapsible flat package freshness protection package shown in Figure 3 is first embodiment of the present utility model, it comprises successional freshness protection package 1 and paper tube core 2, and freshness protection package 1 is wound on the paper tube core 2, and the dotted line at 3 places above the freshness protection package 1 is fracture dotted lines, 4 places are the back cover line, and freshness protection package 1 adopts flat back cover line.On technology, the utility model is to have increased folding process between the back cover operation of the flat package freshness protection package of tradition and coiling operation, make the both sides inside doubling respectively of bag, only at a distance of about 1cm, the width of the package freshness protection package of moulding is slightly larger than half of straight rolling freshness protection package width thus between the both sides of the edge after folding.
Collapsible flat package freshness protection package shown in Figure 4 is second embodiment of the present utility model, with the difference of first embodiment shown in Figure 3 is: adopt the collapsible flat freshness protection package of centreless package.On the technology, adopt additional removable jew core winding apparatus to carry out rolling, when being wound up into required size, unload the coring volume, owing to saved the shared space of paper tube core, and folding mode is identical with first embodiment shown in Figure 3, and the radial dimension of the package freshness protection package of moulding is slightly less than the corresponding size of prior art thus, and its volume further reduces.
Collapsible flat package freshness protection package shown in Figure 5 is the 3rd embodiment of the present utility model, with the difference of embodiment shown in Figure 4 is: folding mode is for freshness protection package folding half-and-half, and the width of folding later package freshness protection package equals half of former width; In addition, adopt identical removable jew core winding apparatus to carry out rolling with embodiment shown in Figure 4, for the freshness protection package of same size, quantity, half of the volume the when volume-diminished of the package freshness protection package of moulding is directly rolled up for band paper tube core thus, required packing box is also corresponding to be reduced.Be to adopt carton package as shown in Figure 6, have an outlet cap on the carton, can use from this outlet expansion that pulls outward out when getting freshness protection package, the bag tail that to pull out during harvesting pushes back in the box, and lid is pushed back in the box, guarantees cleaning, prevent that fly worm or cockroach from entering in the box, causes cross pollution.Also available plastics of external packing box or metallic material are made, and as shown in Figure 7, by adding the box-packaged of design fineness, product are developed to top grade.
Collapsible flat package freshness protection package shown in Figure 8 is the 4th embodiment of the present utility model, with the difference of embodiment shown in Figure 4 be: folding mode adopts the forms of three foldings, the width of folding later package freshness protection package equal bag developed width 1/3rd, this folding mode is applicable to the freshness protection package of big specification.