CN214649278U

CN214649278U - Smooth vacuum packaging bag

Info

Publication number: CN214649278U
Application number: CN202120218891.3U
Authority: CN
Inventors: 曹东华
Original assignee: Dongguan Weili Electromechanical Co ltd
Current assignee: Dongguan Weili Electromechanical Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-11-09
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a plain noodles vacuum packaging bag, plain noodles vacuum packaging bag include the bag body, and two upper and lower bag faces have to the bag body, and at least one of them bag face is provided with an at least folding portion, and the folding portion extends along the length direction of the bag body, and the inside between folding portion and corresponding bag face and/or at folding portion is formed with an at least passageway of ventilating naturally, and the passageway of ventilating is located the inboard of bag face. The utility model discloses simple structure, the evacuation is fast, reduction in production cost by a wide margin.

Description

Smooth vacuum packaging bag

Technical Field

The utility model belongs to the technical field of the vacuum packaging bag technique who uses in vacuum sealing packagine machine and specifically relates to a plain noodles vacuum packaging bag is related to.

Background

The vacuum packing bag used for the vacuum sealing packing machine is formed with densely distributed grains or concave-convex points on the bag surface to realize that an air exhaust channel is formed in the bag after the two bag surfaces are mutually pressed and attached in the vacuum pumping process, and the vacuum packing bag is commonly called as a flour bag or a grain bag. The production process of the vacuum packaging bag comprises the steps of firstly producing a bag surface, hot-pressing and forming lines or concave-convex points on the surface of the bag surface, cutting the bag surface into qualified widths, overlapping the two bag surfaces together by hot-melting pressing equipment, hot-melting and pressing the edges of the two bag surfaces into a whole by the hot-melting pressing equipment, and hot-melting and pressing the bottom of a piece bag into a whole to obtain the vacuum packaging bag with an opening at one side and welded sealing strips at the edges of three sides.

In addition, the bag surface of the vacuum packaging bag has to have larger thickness based on the production process and the use requirement, the bag surface has too small thickness to form lines or concave-convex points, the smooth production is difficult, the bag surface has too small thickness and can cause too small air exhaust channel, in addition, the closed air exhaust channel caused by the deformation of the air exhaust channel is easy to occur in the vacuum pumping process, and the smooth vacuum pumping operation in the use process can not be ensured.

Furthermore, the amount of materials required for producing vacuum packaging bags of the same size is large, multiple production devices are required for producing the vacuum packaging bags, one set of production device for producing the vacuum packaging bags is more than 1 million yuan, the investment cost of the equipment required for producing the vacuum packaging bags is very high, the running production of the equipment is high, the investment cost and the running cost of the equipment are both converted into the vacuum packaging bags, and the comprehensive cost of the vacuum packaging bags is relatively high, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a plain noodles vacuum packaging bag, simple structure, it is effectual to bleed, with low costs to exist to prior art.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a plain noodles vacuum packaging bag, plain noodles vacuum packaging bag include the bag body, and the bag body has two upper and lower bag faces, and at least one of them bag face is provided with at least one folding part, and the folding part extends along the length direction of the bag body, has at least one ventilation channel between folding part and corresponding bag face and/or in the inside nature of folding part, and ventilation channel is located the inboard of bag face.

Furthermore, a plurality of folding parts are formed on the bag surface, and two adjacent folding parts are overlapped up and down or arranged adjacently left and right; one end of the bag body is provided with a bag opening, and the other end is sealed.

Furthermore, the bag surface is formed with a plurality of folding parts, and two adjacent folding parts along the width direction of the bag body are transversely staggered or transversely connected end to end.

Furthermore, a plurality of folding portions which are arranged adjacently are formed in the middle area of the bag surface or a plurality of folding portions which are arranged adjacently are formed in at least two areas of the bag surface respectively.

Furthermore, the folding part is arranged on the inner side or the outer side of the bag surface in a protruding mode, and the folding part comprises folded edges extending out of the bag surface and arranged in a folded mode.

Furthermore, one folding part comprises an upper folding sheet and a lower folding sheet which are formed by folding the bag surface, the outer sides of the upper folding sheet and the lower folding sheet which belong to the same folding part are connected into a whole, and the inner sides of the upper folding sheet and the lower folding sheet are respectively connected with the corresponding bag surface or the adjacent folding part.

Furthermore, the upper and lower two corrugated sheets belonging to the same folding part are partially overlapped, and the vent channel is arranged between the upper and lower two corrugated sheets belonging to the same folding part or the straight elongated vent channel is arranged between the corrugated sheets and the corresponding bag surface.

Furthermore, the smooth surface vacuum packaging bag comprises a bag body which is obtained by flattening or folding a hollow cylindrical plastic film produced by using a film blowing process, the bag body is an upper bag surface and a lower bag surface, and the ventilation channel extends along the length direction of the folding part.

Further, plain noodles vacuum packaging bag includes the piece bag, and the piece bag includes one side opening, trilateral sealed the bag body, the bag body has two from top to bottom and meet the side and in succession and link as an organic whole the bag face, the preceding tip of the bag body are provided with the opening, the back tip is provided with the hot melt sealing strip, the tip and the corresponding hot melt sealing strip hot melt of folding portion link as an organic whole, the back tip of the hot melt sealing strip sealing bag body.

Further, plain noodles vacuum packaging bag is including rolling up the bag or leading to the bag, roll up the bag or lead to the bag and include at length direction continuous extension the bag body, the bag body has two from top to bottom in the side of meeting is continuous and be linked together bag face, the inner chamber of the bag body runs through and communicates whole bag body along length direction.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model discloses simple structure, the evacuation is fast, and it is effectual to bleed, reduction in production cost by a wide margin.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the smooth vacuum packaging bag of the present invention.

FIG. 2 is a partial enlarged view at A.

Fig. 3 is a schematic view of the structure in which the folded portions formed on the bag surface are adjacently disposed.

Fig. 4 is a schematic view showing the structure in which adjacent folded portions formed on the bag surface are overlapped with each other.

Fig. 5 is a schematic structural view of a bag surface in which a plurality of folded portions are formed in a plurality of regions, respectively.

Fig. 6 is a schematic structural diagram of the smooth vacuum packaging bag of the present invention, which is made into a roll bag or a through bag.

The labels in the figure are: 1, a folding part 13 of a bag surface 12 of a bag body 11, a bag opening 15 of a ventilation channel 14 are hot-melt sealing strips.

Detailed Description

A kind of plain vacuum packaging bag, as shown in fig. 1-6, the plain vacuum packaging bag includes the bag body 1, the bag body 1 has two upper and lower bag faces 11, at least one bag face 11 has at least a folding portion 12, the folding portion 12 extends along the length direction of the bag body 1, the folding portion 12 is set up in the outside of the bag face 11 convexly, the folding portion 12 can also set up in the inside of the bag face 11 convexly, the folding portion 12 includes the folded edge extending from the bag face 11 and set up in half, form the air channel 13 between the folding portion 12 and the corresponding bag face 11, or, form a air channel 13 naturally in the inside of each folding portion 12, namely the interval existing between the folded edge of the folding portion 12 forms the air channel 13 naturally, the air channel 13 lies in the inside of the bag face 11, is used for leading the air in the bag body 1 out through the bag mouth 14, and the air channel 13 formed by a folding portion 12 has a relatively larger air section, therefore, the air flow passing resistance is smaller, the air extraction speed is higher, and the air extraction effect is better.

Two adjacent folding parts 12 are overlapped up and down or arranged adjacently left and right; one end of the bag body 1 is provided with a bag opening 14, the other end is sealed, and the smooth vacuum packaging bag is made into a sheet bag with one side opened and three sides sealed.

Preferably, a plurality of folding parts 12 are formed at the middle region of the bag surface 11 and are adjacently arranged, and a plurality of vent channels 13 parallel to the folding parts 12 are naturally formed at the middle region of the bag surface 11.

Preferably, a plurality of folding portions 12 are formed on the bag surface 11, and any two adjacent folding portions 12 are overlapped up and down to form a vent channel 13 with a larger vent cross section, so as to ensure the structural stability of the vent channel 13 and prevent the vent channel 13 from being pressed to seal the vent channel 13 when the pressure in the bag body 1 is too low.

Preferably, the bag face 11 is formed with a plurality of folding portions 12, and two folding portions 12 adjacent to each other in the width direction of the bag body 1 are transversely staggered or transversely connected end to end, so that the two adjacent folding portions 12 are relatively independent, and mutual interference is reduced through an isolation design, thereby ensuring that the vacuumizing is smoothly performed.

Preferably, a plurality of folding portions 12 are formed at a plurality of regions of the bag surface 11, respectively, and are disposed adjacently, so as to provide a greater number of vent channels 13 at the bag surface 11, thereby increasing the vacuum pumping speed.

Specifically, the plain vacuum packaging bag comprises a bag body 1 which is obtained by flattening or folding a hollow cylindrical plastic film produced by a film blowing process, wherein the bag body 1 comprises an upper bag surface 11 and a lower bag surface 11, and a ventilation channel 13 extends along the length direction of a folding part 12. The film blowing process is a mature film forming technology, the film blowing equipment required for producing the bag body 1 by using the film blowing process is very simple, the purchasing cost of the film blowing equipment is high, only tens of thousands yuan is needed, the operation cost is very low, the production process of the smooth vacuum packaging bag by using the film blowing process is simpler, and the comprehensive production cost is greatly reduced.

Wherein, one folding part 12 comprises an upper folding sheet and a lower folding sheet which are formed by folding the bag surface 11, the outer sides of the upper folding sheet and the lower folding sheet which belong to the same folding part 12 are connected into a whole, the inner sides of the upper folding sheet and the lower folding sheet are respectively connected with the corresponding bag surface 11 or the folding sheet of the adjacent folding part 12, a vent channel 13 is formed between the non-overlapping area of the inner sides of the two folding sheets and the bag surface 11, and the vent channel 13 can be formed between the two folding sheets. The upper and lower two corrugated sheets belonging to the same folded part 12 are partially overlapped, and a vent channel 13 is arranged between the upper and lower two corrugated sheets belonging to the same folded part 12 or a straight elongated vent channel 13 is arranged between the corrugated sheets and the corresponding bag surface 11.

When the bag is used, articles are plugged into the bag body 1, the bag opening 14 is inserted into a vacuumizing groove of a vacuum sealing and packaging machine and then slightly pressed, the vacuum sealing and packaging machine is started to vacuumize the bag body 1, air in the bag body 1 is pumped out through the ventilating channels 13 formed by the folding parts 12 to realize vacuumizing operation, and the bag opening 14 is hot-melted and sealed through the heating sheets of the vacuum sealing and packaging machine after vacuumizing is completed so as to realize sealing of the bag opening 14.

In a preferred technical scheme, a shaping rib is formed on the inner side or the outer side of the folded edge, and the folded part 12 and the formed ventilation channel 13 keep unchanged in shape during use, particularly during vacuum pumping, through shaping the folded edge by the shaping rib and the folded part 12 formed by the folded edge.

In addition, after a proper amount of articles are put into the bag body 1, the bag surface 11 and the folding part 12 are slightly unfolded and deformed, namely, the folding part 12 is slightly unfolded and deformed, and the ventilation channel 13 formed by the upper and lower two corrugated sheets is still kept on the inner side of the bag surface 11, during the vacuumizing process, the folding part 12 gradually shrinks along with the reduction of the vacuum degree in the bag body 1, the folding part 12 keeps the basic shape unchanged during the vacuumizing process, so that the ventilation channel 13 with a relatively large cross section is arranged in the bag at the later stage of the vacuumizing process, and the vacuumizing speed is increased.

Preferably, the plain vacuum packaging bag comprises a bag body 1 with an opening at one side and three sealed sides, as shown in fig. 1-5, the bag body 1 has an upper bag surface 11 and a lower bag surface 11 which are connected continuously and integrally at the connecting side, the front end of the bag body 1 is provided with an opening, the rear end is provided with a hot-melt sealing strip 15, the end of the folding part 12 is connected with the corresponding hot-melt sealing strip 15 in a hot-melt manner, and the hot-melt sealing strip 15 seals the rear end of the bag body 1.

Preferably, the smooth vacuum packaging bag comprises a roll bag or a through bag, as shown in fig. 5-6, the roll bag or the through bag comprises a bag body 1 continuously extending in the length direction, the bag body 1 is provided with an upper bag surface 11 and a lower bag surface 11 which are continuously connected at the connecting sides and are connected into a whole, and the inner cavity of the bag body 1 penetrates through and is communicated with the whole bag body 1 in the length direction.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A plain vacuum packaging bag is characterized in that: the smooth vacuum packaging bag comprises a bag body (1), wherein the bag body (1) is provided with an upper bag surface and a lower bag surface (11), at least one folding part (12) is arranged on at least one bag surface (11), the folding part (12) extends along the length direction of the bag body (1), at least one ventilation channel (13) is naturally formed between the folding part (12) and the corresponding bag surface (11) and/or in the folding part (12), and the ventilation channel (13) is positioned on the inner side of the bag surface (11).

2. The glazed vacuum package of claim 1, wherein: the bag surface (11) is formed with a plurality of folding parts (12), and two adjacent folding parts (12) are vertically overlapped or horizontally and adjacently arranged; one end of the bag body (1) is provided with a bag opening (14), and the other end is sealed.

3. The glazed vacuum package of claim 1, wherein: the bag surface (11) is formed with a plurality of folding parts (12), and two adjacent folding parts (12) along the width direction of the bag body (1) are transversely staggered or transversely connected end to end.

4. The glazed vacuum package of claim 1, wherein: a plurality of adjacently arranged folding parts (12) are formed in the middle area of the bag surface (11) or a plurality of adjacently arranged folding parts (12) are respectively formed in at least two areas of the bag surface (11).

5. The glazed vacuum package of claim 1, wherein: the folding part (12) is arranged on the inner side or the outer side of the bag surface (11) in a protruding mode, the folding part (12) comprises folded edges extending out of the bag surface (11) in a folded mode, and shaping ribs are formed on the inner side or the outer side of the folded edges.

6. The glazed vacuum package of claim 1, wherein: one folding part (12) comprises an upper folding sheet and a lower folding sheet which are formed by folding the bag surface (11), the outer sides of the upper folding sheet and the lower folding sheet which belong to the same folding part (12) are connected into a whole, and the inner sides of the upper folding sheet and the lower folding sheet are respectively connected with the corresponding bag surface (11) or the adjacent folding parts (12).

7. The glazed vacuum package of claim 6, wherein: the upper and lower two corrugated sheets belonging to the same folding part (12) are partially overlapped, and the vent channel (13) is arranged between the upper and lower two corrugated sheets belonging to the same folding part (12) or the straight and elongated vent channel (13) is arranged between the corrugated sheets and the corresponding bag surface (11).

8. The glazed vacuum package of any one of claims 1 to 7, wherein: the smooth surface vacuum packaging bag comprises a bag body (1) which is obtained by flattening or folding a hollow cylindrical plastic film produced by using a film blowing process, the bag body (1) comprises an upper bag surface (11) and a lower bag surface (11), and the ventilation channel (13) extends along the length direction of the folding part (12).

9. The glazed vacuum package of claim 8, wherein: plain noodles vacuum packaging bag includes the piece bag, and the piece bag includes one side opening, trilateral sealed the bag body (1), the bag body (1) have about two meet the side continuous and connect as an organic whole bag face (11), the preceding tip of the bag body (1) is provided with the opening, the back tip is provided with hot melt sealing strip (15), the tip and corresponding hot melt sealing strip (15) hot melt of folding portion (12) are connected as an organic whole, the back tip of the hot melt sealing strip (15) sealed bag body (1).

10. The glazed vacuum package of claim 8, wherein: plain noodles vacuum packaging bag is including rolling up the bag or leading to the bag, roll up the bag or lead to the bag and include at length direction continuous extension the bag body (1), two are continuous and be connected as an organic whole in the side of meeting about the bag body (1) has bag face (11), and the inner chamber of the bag body (1) runs through and communicates whole bag body (1) along length direction.