CN220333465U - Multilayer plastic composite heat-sealing valve port bag - Google Patents
Multilayer plastic composite heat-sealing valve port bag Download PDFInfo
- Publication number
- CN220333465U CN220333465U CN202321723869.XU CN202321723869U CN220333465U CN 220333465 U CN220333465 U CN 220333465U CN 202321723869 U CN202321723869 U CN 202321723869U CN 220333465 U CN220333465 U CN 220333465U
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- China
- Prior art keywords
- plastic film
- heat
- composite plastic
- multilayer
- seal
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- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 239000004033 plastic Substances 0.000 title claims abstract description 11
- 229920003023 plastic Polymers 0.000 title claims abstract description 11
- 239000002985 plastic film Substances 0.000 claims abstract description 24
- 229920006255 plastic film Polymers 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000013461 design Methods 0.000 claims abstract description 4
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 description 6
- 230000035699 permeability Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Abstract
The utility model relates to the technical field of valve bags and discloses a multi-layer plastic composite heat-seal valve bag which comprises a multi-layer composite plastic film, wherein two sides of the multi-layer composite plastic film are connected through heat sealing to form a sealing line, the upper end and the lower end of the multi-layer composite plastic film are also heat-sealed to form a valve bag, the sealing line does not extend to the top end of the multi-layer composite plastic film to form a material inlet for feeding and discharging, and the sealing line is of a U-shaped design. The multilayer plastic composite heat-seal valve pocket is connected in a heat-sealing mode, has stable quality and convenient processing, adopts the multilayer composite plastic film as a base material, can contain nanoscale powdery and granular products, has the advantages of leakage prevention, moisture prevention and greatly improved tensile strength and anti-falling strength; in addition, the exhaust channel is arranged, so that air in the valve bag can be guided out, and the problems of bag breaking and powder leakage are avoided.
Description
Technical Field
The utility model relates to the technical field of valve bags, in particular to a multi-layer plastic composite heat-seal valve bag.
Background
The valve bag is a kind of packing bag, and is mainly used for packing edible powder, chemical fertilizer, synthetic material, explosive, grain, salt, mineral and other solid material and flexible article. The valve pockets can be divided into: an upper open valve pocket, a lower open valve pocket, and an upper and lower open valve pocket.
The existing valve bag is generally made of woven bags in the filling process, the problem of air permeability of the valve bag is easy to cause the problems of bag breaking and powder leakage, and in addition, the leakage resistance and the moisture resistance are poor.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a multi-layer plastic composite heat-sealing valve bag, which solves the problems of air permeability, leakage and moisture resistance of the valve bag.
The utility model provides the following technical scheme: the utility model provides a compound heat seal valve port bag of multilayer plastics, includes the compound plastic film of multilayer, the both sides of compound plastic film of multilayer are connected and are formed the seal line through the heat seal, and the upper and lower both ends of compound plastic film of multilayer also form the valve pocket through the heat seal, the seal line does not extend to the top of compound plastic film of multilayer and forms the material mouth that is used for advancing the ejection of compact, the seal line is U type design, and the both ends of seal line extend to the bottom of compound plastic film of multilayer respectively, a plurality of groups gas vent has been seted up to the inboard one end of seal line, be used for to the exhaust export of material mouth is seted up at the middle part of seal line.
Preferably, air in the valve pocket is introduced into the interior of the sealing line through the air outlet and is discharged from the outlet through the material inlet.
Compared with the prior art, the utility model has the following beneficial effects:
the multilayer plastic composite heat-seal valve pocket is connected in a heat-sealing mode, has stable quality and convenient processing, adopts the multilayer composite plastic film as a base material, can contain nanoscale powdery and granular products, has the advantages of leakage prevention, moisture prevention and greatly improved tensile strength and anti-falling strength; in addition, the exhaust channel is arranged, so that air in the valve bag can be guided out, and the problems of bag breaking and powder leakage are avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the venting and feeding of the present utility model.
In the figure: 1. a multilayer composite plastic film; 2. a seal line; 3. a material port; 4. an exhaust port; 5. and an outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, a technical solution of the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings of the embodiments of the present disclosure, and detailed descriptions of known functions and known components are omitted from the present disclosure in order to avoid unnecessarily obscuring the concept of the present disclosure.
Referring to fig. 1-2, a multi-layer plastic composite heat-seal valve bag comprises a multi-layer composite plastic film 1, so that the multi-layer composite plastic film can contain nano-level powdery and granular products, the anti-leakage and dampproof performance are greatly improved, the tensile strength and the anti-falling strength are greatly improved, two sides of the multi-layer composite plastic film 1 are connected through heat sealing to form a sealing line 2, the upper end and the lower end of the multi-layer composite plastic film 1 are also connected through heat sealing to form a valve bag, the stability of the multi-layer composite plastic film is improved, and the quality problem of bag breakage caused by falling of negative glue in the high-temperature filling and low-temperature storing processes of the adhesive valve bag is avoided.
The sealing line 2 does not extend to the top of the multi-layer composite plastic film 1 and forms the material mouth 3 that is used for feeding and discharging, the sealing line 2 is U type design, and the both ends of sealing line 2 extend to the bottom of multi-layer composite plastic film 1 respectively, a plurality of groups of gas vents 4 have been seted up to the inboard one end of sealing line 2, be used for to the exhaust export 5 of material mouth 3 is seted up at the middle part of sealing line 2, the inside of the air in the valve port bag is led in the sealing line 2 through gas vent 4 to from export 5 through material mouth 3 discharge, form the exhaust passage, derive to the air in the valve pocket, its gas permeability is good, avoids the material leakage again, and the internal valve mouth strengthens the subsides structure, improves workman filling efficiency, easily palletizing robot realizes automatic pile up neatly, and effect after the pile up neatly is still neat, pleasing to the eye, antiskid.
The above embodiments are only exemplary embodiments of the present utility model and are not intended to limit the present utility model, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this utility model will occur to those skilled in the art, and are intended to be within the spirit and scope of the utility model.
Claims (2)
1. The utility model provides a multilayer plastics complex heat seal valve port bag which characterized in that: including multilayer composite plastic film (1), the both sides of multilayer composite plastic film (1) are connected and are formed seal line (2) through the heat-seal, and the upper and lower both ends of multilayer composite plastic film (1) also form the valve pocket through the heat-seal, seal line (2) do not extend to the top of multilayer composite plastic film (1) and form material mouth (3) that are used for feeding and discharging, seal line (2) are U type design, and extend to the bottom of multilayer composite plastic film (1) respectively at the both ends of seal line (2), a plurality of groups gas vent (4) have been seted up to the inboard one end of seal line (2), be used for to material mouth (3) exhaust export (5) have been seted up at the middle part of seal line (2).
2. The multilayer plastic composite thermal valve bag of claim 1, wherein: air in the valve pocket is introduced into the interior of the sealing line (2) through the air outlet (4) and is discharged from the outlet (5) through the material inlet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321723869.XU CN220333465U (en) | 2023-07-04 | 2023-07-04 | Multilayer plastic composite heat-sealing valve port bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321723869.XU CN220333465U (en) | 2023-07-04 | 2023-07-04 | Multilayer plastic composite heat-sealing valve port bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220333465U true CN220333465U (en) | 2024-01-12 |
Family
ID=89458655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321723869.XU Active CN220333465U (en) | 2023-07-04 | 2023-07-04 | Multilayer plastic composite heat-sealing valve port bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220333465U (en) |
-
2023
- 2023-07-04 CN CN202321723869.XU patent/CN220333465U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |