CN106378964A - Manufacturing and leakage testing method of liquid bag - Google Patents
Manufacturing and leakage testing method of liquid bag Download PDFInfo
- Publication number
- CN106378964A CN106378964A CN201611090712.2A CN201611090712A CN106378964A CN 106378964 A CN106378964 A CN 106378964A CN 201611090712 A CN201611090712 A CN 201611090712A CN 106378964 A CN106378964 A CN 106378964A
- Authority
- CN
- China
- Prior art keywords
- bag
- fluid bag
- valve
- patch
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title abstract description 9
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 238000012360 testing method Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims description 58
- 239000000463 material Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005269 aluminizing Methods 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 6
- 206010053615 Thermal burn Diseases 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/36—Investigating fluid-tightness of structures by using fluid or vacuum by detecting change in dimensions of the structure being tested
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bag Frames (AREA)
Abstract
The invention discloses a manufacturing and leakage testing method of a liquid bag. The liquid bag comprises a bag body, a patch and a valve; the upper layer and the lower layer of the liquid bag are each composed of two or three layers of films, the bag body is prepared in a heat seal manner, a patchy biofilm is made of PET/PE, the PET face of the patchy biofilm faces upwards, the PE face and the PE of the bag body are subject to heat seal, the PET can resist high temperature, and therefore PE film melting can be prevented; the patch and bag body heat seal portion is subject hole digging, the hole diameter is the same with the diameter of the valve, the valve penetrates out of the interior of the bag through the hole of the bag body and the patch to be arranged on the bag body in a heat seal manner, and when the heat seal liquid bag is subject to side sealing, an opening needs to be reserved in one side, and is not sealed. During vacuum pumping, a hot knife is used for opening sealing, in the manufacturing process, leakage testing is carried out, and the time and the working procedure of liquid bag preparing are effectively reduced.
Description
Technical field
The invention belongs to packing technique field is and in particular to a kind of making of fluid bag and leak check method.
Background technology
With the enhancing of people's environmental consciousness, the requirement to flexible package punch for the country improves constantly, and fills the appearance of liquid first
Device such as metal bucket or Plastic Drum etc. will deliver to special qualified cleaning company cleaning, just can reuse after cleaning.But
Seldom, therefore cleaning cost is very high for qualified cleaning company.Container also has a cost returning transport, and round transports week
Phase is longer, and entreprise cost increases.Because fluid bag is disposable product, without cleaning without recovery compared with traditional container,
There are significant economic advantages, therefore obtained increasingly being widely applied in fields such as all kinds of chemical industry, food, agricultural product.But
It is the hidden danger that leakage is fluid bag, there is presently no the generally acknowledged method of testing of maturation, be also to promote the maximum obstacle of fluid bag.
Therefore, how just can verify qualified sack, be current urgent problem.
Content of the invention
The present invention for deficiency of the prior art, a kind of making of fluid bag and leak check method are provided.
For achieving the above object, the present invention employs the following technical solutions：
A kind of making of fluid bag and leak check method are it is characterised in that include：
The patch of given size is tailored out on fluid bag machine, by manipulator, patch is placed on the specified location of fluid bag,
And pushed the upper layer film heat-sealing of patch and fluid bag bag body by scalding knife；
Borehole on the patch having sealed and upper layer film, aperture is identical with the diameter of valve so that valve passes from the hole, scalds circular
In the presence of knife, valve is sealed with upper layer film；
First heat-seal operation is carried out to the weld seam of fluid bag, only stays an allowance weld not seal or leave one in allowance weld
The opening of measured length；
Fluid bag is laid in vacuum machine, allowance weld is overlapped with the welding rod in vacuum machine, tightens the valve gap of valve；
Vacuumized using vacuum machine, the second heat-seal operation is carried out to allowance weld simultaneously.
For optimizing technique scheme, the concrete measure taken also includes：
The deformation of the bottom sheet film of monitoring bag body, if bottom sheet film is recessed in valve, represents in bag there is vacuum；If under
Piece film does not produce depression, represents in bag do not there is vacuum.
Described fluid bag is pillow bag fluid bag, and described valve seals on the center line of fluid bag.
Described fluid bag be stereoscopic bag, bag body sealed two-by-two by the film of four identical numbers of plies form or folded by cylinder film and
Become.
Described fluid bag is three-dimensional lacing wire bag, and lacing wire is fixed on the bag of inner side, and lacing wire both sides adjacent with bag body are in 45 °
Connect.
The material of described fluid bag is multilayer PE film or the PET aluminizing and PE composite membrane, and the material of patch is PET/PE.
Described second heat-seal operation and the first heat-seal operation are maintained at same straight line.
Described vacuum machine is extracted into 1000Pa.
The invention has the beneficial effects as follows：1）Fluid bag exhausts vacuum and is easy to fold, and volume-diminished reduces pack space, increases
Install a bag quantity additional；2）Client sees that the fluid bag back side illustrates there is vacuum in bag when there being depression outside valve seat, does not have leakage point, can
Normal use, if the valve seat outer bag back side is not recessed, explanation has leak source should not feed can to return producer；3）This inspection sack
Damaged method is simple very clear, is suitable for variously-shaped large-scale fluid bag.
Brief description
Fig. 1 is the structural representation of pillow bag fluid bag.
Fig. 2 is the structural representation of three-dimensional fluid bag.
Fig. 3 is the structural representation of lacing wire solid fluid bag.
Reference is as follows：Allowance weld 1, valve 2, bag body 3, patch 4, bag bottom 5, lacing wire 6, discharging opening 7.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.
The leakage method of inspection of the fluid bag that the present invention provides is it is adaptable to the leakage of various large-scale fluid bag is checked.Liquid
Bag includes bag body 3, patch 4 and valve 2, and the material of bag body 3 is high intensity PE film or aluminum plated PET and PE composite membrane, bag configuration
Can be 2+2 or 3+3 type, that is, fluid bag levels are made up of 2 layers or 3 tunics respectively, bag body 3 makes levels by the way of heat-sealing
Film heat-sealing, the material of patch 4 is PET/PE, and the PET of patch 4 faces up, and PE face is sealed with the PE of bag body 3, and PET energy
High temperature resistant prevent PE film melt.
, bag body 3 is pillow pouch-type taking the pillow bag fluid bag of Fig. 1 as a example, and heat-sealing on fluid bag center line has valve 2, bag
The tunic up and down of body 3 can be 2 layers or 3 layers.In revealing the method for inspection, first by patch 4 on large-scale liquid bag making machine
It is cut into the size of regulation, is manually placed at the specified location of fluid bag by machinery, and pushed patch 4 and fluid bag bag by scalding knife
The upper layer film heat-sealing of body 3.Borehole on the patch 4 having sealed and upper layer film, so that valve 2 passes from the hole, scalds knife in circle
By valve 2 and upper layer film heat-sealing under effect.Four weld seams of fluid bag are sealed（I.e. the first heat-seal operation）, only stay one in advance
The opening staying weld seam 1 not seal or leaving 40cm length in allowance weld 1.Fluid bag is laid in large-scale vacuum machine, in advance
Weld seam 1 is stayed to overlap with the welding rod in vacuum machine, vacuum machine adopts the band of custom-made to scald knife heat-sealing, tightens the valve gap of valve 2.Will be true
Empty room is extracted into 1000Pa（Absolute pressure, gauge pressure vacuum is 0.099Mpa）, allowance weld 1 is sealed simultaneously（I.e. second
Heat-seal operation）.The deformation of the bottom sheet film of monitoring bag body 3, if bottom sheet film is recessed in valve 2, represents in bag there is vacuum；
If bottom sheet film does not produce depression, represent in bag that there is no vacuum, sack has leak source can not use.
The shape of conventional fluid bag also has the stereoscopic bag shown in Fig. 2-3, its method of inspection with pillow bag fluid bag, wherein
Upper piece film refers to seal a side pocket body of valve 2, and bottom sheet film refers to and upper piece relative side of film.In the stereoscopic bag of Fig. 2, bag body 3 by
The film of four identical numbers of plies seal two-by-two form or large-scale cylinder film fold form, sack seals into eight words with bag bottom 5
Shape, at sack, heat-sealing valve 2 is charging aperture, and heat-sealing at bag bottom 5 has discharging opening 7.Fig. 3 is three-dimensional lacing wire bag, and lacing wire 6 is fixed on
On bag body 3 inside stereoscopic bag, the connection at 45 ° of lacing wire 6 both sides adjacent with bag body 3, same Fig. 2 in position of valve 2.
The three of the above pouch-shaped opening that wherein one weld seam did not sealed or reserved 40cm length when making does not seal, and remains to take out true
Space-time uses.During inspection, fluid bag is placed in large-scale vacuum machine, tightens valve gap, vacuum is extracted into 1000pa, makes fluid bag
Interior formation vacuum, simultaneously by reserved opening heat-sealing, second weld seam will be overlapped with first time weld seam.Can from the sack back side
It is recessed in valve seat to bottom sheet film.Can detect whether sack seals using vacuumizing, have or not leak source, will if there are leak source sack
Gas leakage can cannot form vacuum, bottom sheet film would not be recessed in valve seat, can check whether while scalding last one side
Leakage, completes the operation of inspection during producing fluid bag, and this inspection process is full inspection, there is not destructiveness,
This be large-scale fluid bag up-to-date be also most reliable inspection leakage method.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonging under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention, should be regarded as the protection of the present invention
Scope.
Claims (8)
1. a kind of making of fluid bag and leak check method are it is characterised in that include：
The patch of given size is tailored out on fluid bag machine（4）, by manipulator by patch（4）It is placed on specifying of fluid bag
Position, and pushed patch by scalding knife（4）With fluid bag bag body（3）Upper layer film heat-sealing；
In the patch having sealed（4）With borehole on upper layer film, aperture and valve（2）Diameter identical so that valve（2）Wear from the hole
Go out, by valve in the presence of circular boiling hot knife（2）With upper layer film heat-sealing；
First heat-seal operation is carried out to the weld seam of fluid bag, only stays an allowance weld（1）Do not seal or in allowance weld（1）In
Leave the opening of certain length；
Fluid bag is laid in vacuum machine, allowance weld（1）Overlap with the welding rod in vacuum machine, tighten valve（2）Valve gap；
Vacuumized using vacuum machine, simultaneously to allowance weld（1）Carry out the second heat-seal operation.
2. as claimed in claim 1 a kind of making of fluid bag and leak check method it is characterised in that：Monitoring bag body（3）
The bottom sheet film of body portion deformation, if bottom sheet film be recessed in valve（2）Interior, represent in bag that there is certain vacuum,
Bag good seal；If bottom sheet film does not produce depression, represent in bag that there is no vacuum, bag has leak source.
3. as claimed in claim 1 a kind of making of fluid bag and leak check method it is characterised in that：Described fluid bag is
Pillow bag fluid bag, described valve（2）Heat-sealing is on the center line of fluid bag.
4. as claimed in claim 1 a kind of making of fluid bag and leak check method it is characterised in that：Described fluid bag is
Stereoscopic bag, bag body is sealed two-by-two by the film of four identical numbers of plies to form or folded by cylinder film and forms.
5. as claimed in claim 4 a kind of making of fluid bag and leak check method it is characterised in that：Described fluid bag is
Three-dimensional lacing wire bag, lacing wire（6）It is fixed on the bag of inner side, lacing wire（6）Both sides adjacent with bag body are in 45 ° of connections.
6. as claimed in claim 1 a kind of making of fluid bag and leak check method it is characterised in that：Described fluid bag
Material is multilayer PE film or the PET aluminizing and PE composite membrane, patch（4）Material be PET/PE.
7. as claimed in claim 1 a kind of making of fluid bag and leak check method it is characterised in that：Described second heat-sealing
Operation and the first heat-seal operation are maintained at same straight line.
8. as claimed in claim 1 a kind of making of fluid bag and leak check method it is characterised in that：Described vacuum machine is taken out
To 1000Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090712.2A CN106378964B (en) | 2016-12-01 | 2016-12-01 | A kind of making of fluid bag and leak check method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611090712.2A CN106378964B (en) | 2016-12-01 | 2016-12-01 | A kind of making of fluid bag and leak check method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106378964A true CN106378964A (en) | 2017-02-08 |
| CN106378964B CN106378964B (en) | 2018-09-04 |
Family
ID=57957467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611090712.2A Active CN106378964B (en) | 2016-12-01 | 2016-12-01 | A kind of making of fluid bag and leak check method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106378964B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108909025A (en) * | 2018-07-19 | 2018-11-30 | 石家庄市新金环铝塑包装有限公司 | A kind of plastic-aluminum valve bag and its production technology |
| CN108943860A (en) * | 2018-06-29 | 2018-12-07 | 上海奥特玛特物流设备有限公司 | A kind of double film air bags and its manufacturing method |
| CN109016670A (en) * | 2018-07-03 | 2018-12-18 | 嘉兴市聚力包装有限公司 | The production technology of PE packaging bag |
| CN112406179A (en) * | 2020-11-05 | 2021-02-26 | 中山高林美包装科技有限公司 | Automatic assembly line for aluminum foil bags with valves |
| CN114128523A (en) * | 2021-11-29 | 2022-03-04 | 成都名富园艺有限公司 | Repairing method for water storage structure of plant-growing coil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1429741A (en) * | 2001-12-30 | 2003-07-16 | 谢星倩 | Packaging bag and manufacturing method thereof |
| JP2013249136A (en) * | 2012-05-02 | 2013-12-12 | Mikasa Sangyo Kk | Spout stopper with check valve |
| JP2014193570A (en) * | 2013-03-29 | 2014-10-09 | Fuji Seal International Inc | Manufacturing method for pouch container with spout, and pouch container with spout |
| CN204036931U (en) * | 2014-08-06 | 2014-12-24 | 中山市新宏业自动化工业有限公司 | A middle sealing and valve bag making machine |
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| EP2939583A1 (en) * | 2014-05-02 | 2015-11-04 | Wolf PVG GmbH & Co. KG | Method and device for producing a vacuum cleaner bag and vacuum cleaner bag |
| CN105501669A (en) * | 2015-12-29 | 2016-04-20 | 南京沪江复合材料有限公司 | Liquid packing structure |
| CN205738648U (en) * | 2016-05-10 | 2016-11-30 | 南京沪江复合材料股份有限公司 | A kind of full-service fluid packaging bag |
-
2016
- 2016-12-01 CN CN201611090712.2A patent/CN106378964B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1429741A (en) * | 2001-12-30 | 2003-07-16 | 谢星倩 | Packaging bag and manufacturing method thereof |
| JP2013249136A (en) * | 2012-05-02 | 2013-12-12 | Mikasa Sangyo Kk | Spout stopper with check valve |
| JP2014193570A (en) * | 2013-03-29 | 2014-10-09 | Fuji Seal International Inc | Manufacturing method for pouch container with spout, and pouch container with spout |
| EP2939583A1 (en) * | 2014-05-02 | 2015-11-04 | Wolf PVG GmbH & Co. KG | Method and device for producing a vacuum cleaner bag and vacuum cleaner bag |
| CN204036931U (en) * | 2014-08-06 | 2014-12-24 | 中山市新宏业自动化工业有限公司 | A middle sealing and valve bag making machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943860A (en) * | 2018-06-29 | 2018-12-07 | 上海奥特玛特物流设备有限公司 | A kind of double film air bags and its manufacturing method |
| CN109016670A (en) * | 2018-07-03 | 2018-12-18 | 嘉兴市聚力包装有限公司 | The production technology of PE packaging bag |
| CN108909025A (en) * | 2018-07-19 | 2018-11-30 | 石家庄市新金环铝塑包装有限公司 | A kind of plastic-aluminum valve bag and its production technology |
| CN112406179A (en) * | 2020-11-05 | 2021-02-26 | 中山高林美包装科技有限公司 | Automatic assembly line for aluminum foil bags with valves |
| CN114128523A (en) * | 2021-11-29 | 2022-03-04 | 成都名富园艺有限公司 | Repairing method for water storage structure of plant-growing coil |
| CN114128523B (en) * | 2021-11-29 | 2022-12-02 | 成都名富园艺有限公司 | Repairing method for water storage structure of plant-growing coil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106378964B (en) | 2018-09-04 |
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