CN101413841A - Method and device for rapidly detecting sealability of plastic bag packaging seal - Google Patents
Method and device for rapidly detecting sealability of plastic bag packaging seal Download PDFInfo
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- CN101413841A CN101413841A CNA200710047083XA CN200710047083A CN101413841A CN 101413841 A CN101413841 A CN 101413841A CN A200710047083X A CNA200710047083X A CN A200710047083XA CN 200710047083 A CN200710047083 A CN 200710047083A CN 101413841 A CN101413841 A CN 101413841A
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Abstract
The invention relates to a method for quickly detecting sealability of a plastic bag packing seal and a device thereof. The method comprises the following steps: an adhesive layer is stuck outside a bag body outside the plastic bag seal; the plastic bag stuck with the adhesive layer is pierced by an inflatable needle of the detection device, a valve of the detection device is opened, and an air compressor of the detection device is started to aerate positive pressure air with the pressure higher than the local atmospheric pressure by 50kPa into the plastic bag; the valve is closed after the aeration is completed, and the plastic bag is observed after being kept at the pressure for 15 seconds; if a pressure indicator of the detection device shows that the pressure drop in the plastic bag is lower than 1kPa, the leakage performance of the plastic bag packing seal is qualified; and if the pressure drop equals or is more than 1kPa, the leakage performance of the plastic bag packing seal is unqualified. The detection device consists of the inflatable needle, the pressure indicator, the valve, the air compressor and tubes. For articles packaged by sealed plastic bags, the method and the device can quickly and scientifically detect whether the air tightness of the sealed plastic bags is qualified.
Description
Technical field
The present invention relates to package encapsulation detection technique field, particularly a kind of method and apparatus of fast detecting sealability of plastic bag packaging seal.
Background technology
At present, the use of soft packaging bag (as: polybag) is more and more general, and is also more and more higher to the sealing requirements of closed flexible package bag, thereby the detection of closed flexible package sealing property is just seemed extremely important.About the detection (Leak Detection) of flexible packaging sealing, traditional method mainly is the method by naked-eye observation, and this method not only efficient is lower, and accuracy of detection is not high, and in a word, this method is unscientific.
In order to address this problem, someone has invented a kind of fast detecting method for sealing performance of closed flexible package bag, as Chinese invention patent prospectus (publication number: CN1719218A), the steps include: at first to seal intact soft packaging bag sample and closed flexible package bag to be measured is inserted in the container, airtight good container cover; Then to being inflated to packaging bag rated pressure and constant voltage a period of time in the container; Last quick opening container gland bonnet is observed tested soft packaging bag and the intact soft packaging bag volume change difference of sealing, obtains soft packaging bag sealing property to be measured.This can be simultaneously to sealing the pressurization of soft packaging bag external sync and the decompression of intact soft packaging bag sample and a plurality of sealing to be measured, obtain each soft packaging bag seal degree to be measured.Compare with classic method, this method method of operating is simple, detection speed is fast, testing result is accurate.
Though, above-mentioned this method by device such as some airtight containers and aerating device detect, but also adopted the mode of comparison and detection.But,, testing result is mainly still contrasted the volume change difference of tested soft packaging bag and the intact soft packaging bag of sealing by naked eyes from the effect that detects.Therefore, the testing result of this non-digitalization makes the science that detects also reduce greatly.
Summary of the invention
The method and apparatus that the purpose of this invention is to provide a kind of fast detecting sealability of plastic bag packaging seal, mainly solving above-mentioned conventional detection all needs to rely on naked eyes to carry out the testing result section of declaring, so technical matters of the not enough science of detection method, this method and device can be to articles packaged by sealed plastic bags, detect fast, scientifically whether seal the plastics impermeability qualified.
For solving the problems of the technologies described above, the present invention is achieved in that
A kind of method of fast detecting sealability of plastic bag packaging seal is characterized in that it comprises the steps:
The first step: when plastic bag packaging article, finish behind the sealing process on streamline, extract one bag at random out, and paste the sticker layer on outside the bag outside plastic bag sealing;
Second step: pierce through the polybag of the sticker layer that is sticked with the inflation needle of pick-up unit, and the valve of opening detecting device, the air compressor of start detection device is imported the positive pressure air that is higher than local atmospheric pressure 50kpa in polybag;
The 3rd step: after inflation is finished, valve-off, and keep observing after 15 seconds; If show on the pressure display unit of pick-up unit that the pressure in the polybag falls less than 1kpa, then the plastic bag packaging seal leaking performance is qualified; If show on the pressure display unit that the pressure in the polybag falls more than or equal to 1kpa, the plastic bag packaging seal leaking performance is defective.
A kind of device of fast detecting sealability of plastic bag packaging seal is characterized in that it is used to implement detection method as claimed in claim 1, and it is made up of inflation needle, pressure display unit, valve, air compressor and body; Wherein this inflation needle and air compressor are connected to the two ends of body, then are separately installed with pressure display unit and valve on the middle body.
By technique scheme, the technique effect that the present invention has is:
1, whether the inventive method qualified with the leaking performance of malleation method fast detecting plastic bag packaging seal, and comes the detection and the analyzing and testing result of science by the variation of the force value put down in writing on the pressure display unit, therefore, testing process fast, accurately, efficient.
2, one deck double faced adhesive tape is closely pasted in the film outside at polybag in the inventive method, and inflation needle pierces through plastic foil on this double faced adhesive tape, can keep this place's piercing site not leak when doing to detect, and guarantees to detect fast and accurately.
Description of drawings
Fig. 1 is the structural representation of invention.
Among the figure:
1-inflation needle;
2-pressure display unit;
3-valve;
4-air compressor;
5-body;
6-sticker layer;
7-polybag.
Embodiment
See also Fig. 1, it is the structural representation of the device of a kind of fast detecting sealability of plastic bag packaging seal of the present invention.As shown in the figure: it is made up of inflation needle 1, pressure display unit 2, valve 3, air compressor 4 and body 5; Wherein this inflation needle 1 and air compressor 4 are connected to the two ends of body 5, then are separately installed with pressure display unit 2 and valve 3 on the middle body 5.
By said apparatus, the invention also discloses a kind of method of fast detecting sealability of plastic bag packaging seal, it comprises the steps:
The first step: when plastic bag packaging article, finish behind the sealing process on streamline, extract one bag at random out, and paste sticker layer 6 (this sticker layer can be two-sided subsides) on outside the bag outside polybag 7 seals.
Second step: pierce through the polybag of the sticker layer that is sticked with the inflation needle of pick-up unit, and the valve of opening detecting device, the air compressor of start detection device is imported the positive pressure air that is higher than local atmospheric pressure 50kpa in polybag.
The 3rd step: after inflation is finished, valve-off, and keep observing after 15 seconds; If show on the pressure display unit of pick-up unit that the pressure in the polybag falls less than 1kpa, then the plastic bag packaging seal leaking performance is qualified; If show on the pressure display unit that the pressure in the polybag falls more than or equal to 1kpa, the plastic bag packaging seal leaking performance is defective.
If testing result is defective, then the technological parameter that seals of reply immediately adjusts, until detect by said method again leaking performance qualified till.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the application's claim change and modification, all should be technology category of the present invention.
Claims (2)
1, a kind of method of fast detecting sealability of plastic bag packaging seal is characterized in that it comprises the steps:
The first step: when plastic bag packaging article, finish behind the sealing process on streamline, extract one bag at random out, and paste the sticker layer on outside the bag outside plastic bag sealing;
Second step: pierce through the polybag of the sticker layer that is sticked with the inflation needle of pick-up unit, and the valve of opening detecting device, the air compressor of start detection device is imported the positive pressure air that is higher than local atmospheric pressure 50kpa in polybag;
The 3rd step: after inflation is finished, valve-off, and keep observing after 15 seconds; If show on the pressure display unit of pick-up unit that the pressure in the polybag falls less than 1kpa, then the plastic bag packaging seal leaking performance is qualified; If show on the pressure display unit that the pressure in the polybag falls more than or equal to 1kpa, the plastic bag packaging seal leaking performance is defective.
2, a kind of device of fast detecting sealability of plastic bag packaging seal, it is characterized in that it is used to implement detection method as claimed in claim 1, it is made up of inflation needle (1), pressure display unit (2), valve (3), air compressor (4) and body (5); Wherein this inflation needle (1) and air compressor (4) are connected to the two ends of body (5), then are separately installed with pressure display unit (2) and valve (3) on the middle body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710047083XA CN101413841A (en) | 2007-10-16 | 2007-10-16 | Method and device for rapidly detecting sealability of plastic bag packaging seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710047083XA CN101413841A (en) | 2007-10-16 | 2007-10-16 | Method and device for rapidly detecting sealability of plastic bag packaging seal |
Publications (1)
| Publication Number | Publication Date |
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| CN101413841A true CN101413841A (en) | 2009-04-22 |
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| CNA200710047083XA Pending CN101413841A (en) | 2007-10-16 | 2007-10-16 | Method and device for rapidly detecting sealability of plastic bag packaging seal |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017985A (en) * | 2012-12-14 | 2013-04-03 | 唐山轨道客车有限责任公司 | Device, system and method for detecting air impermeability of high speed motor train unit spare braking system |
| CN103604574A (en) * | 2013-12-02 | 2014-02-26 | 滁州汽车与家电技术及装备研究院 | Aerostat air bag leakage detection system and method based on synchronous measurement data fusion |
| CN103786931A (en) * | 2012-07-04 | 2014-05-14 | 楚天科技股份有限公司 | Transfusion soft bag heat-seal strength on-line detecting device and transfusion soft bag production line |
| CN103913280A (en) * | 2012-12-29 | 2014-07-09 | 北京谊安医疗系统股份有限公司 | Method of determining full inflation of foldable bag and anesthesia machine controlled leakage test method |
| CN105841881A (en) * | 2016-03-21 | 2016-08-10 | 张�杰 | Vacuum degree detection structure and detection method of external compound packaged five-layer coextrusion infusion bag |
| CN106289677A (en) * | 2016-08-09 | 2017-01-04 | 桐城运城制版有限公司 | A kind of device of quick detection sealing performance of soft packing bag |
| CN109506843A (en) * | 2018-12-10 | 2019-03-22 | 上海交通大学 | Mating surface leakage region measuring system and method based on dyeing theory |
| CN109850282A (en) * | 2018-12-25 | 2019-06-07 | 宁波鸭妹子食品有限公司 | Puffed food plastic bag seals detection device |
| CN110553925A (en) * | 2019-07-26 | 2019-12-10 | 中国航空工业集团公司济南特种结构研究所 | Device for testing tensile and compressive strength of structural element under high-temperature condition |
| CN110815947A (en) * | 2019-11-26 | 2020-02-21 | 湖南买买提环保科技有限公司 | Instant air supplement unit for bag making machine |
| CN111735707A (en) * | 2020-06-29 | 2020-10-02 | 天津市捷威动力工业有限公司 | Method and device for testing packaging strength of lithium ion soft package battery |
| CN113953193A (en) * | 2021-10-28 | 2022-01-21 | 河南米立方食品有限公司 | Puffed food plastic bag seals detection device |
-
2007
- 2007-10-16 CN CNA200710047083XA patent/CN101413841A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786931A (en) * | 2012-07-04 | 2014-05-14 | 楚天科技股份有限公司 | Transfusion soft bag heat-seal strength on-line detecting device and transfusion soft bag production line |
| CN103017985A (en) * | 2012-12-14 | 2013-04-03 | 唐山轨道客车有限责任公司 | Device, system and method for detecting air impermeability of high speed motor train unit spare braking system |
| WO2014090134A1 (en) * | 2012-12-14 | 2014-06-19 | 唐山轨道客车有限责任公司 | Device, system and method for detecting air tightness of backup brake system of high-speed motor train unit |
| CN103017985B (en) * | 2012-12-14 | 2015-03-11 | 唐山轨道客车有限责任公司 | Device, system and method for detecting air impermeability of high speed motor train unit spare braking system |
| CN103913280A (en) * | 2012-12-29 | 2014-07-09 | 北京谊安医疗系统股份有限公司 | Method of determining full inflation of foldable bag and anesthesia machine controlled leakage test method |
| CN103604574A (en) * | 2013-12-02 | 2014-02-26 | 滁州汽车与家电技术及装备研究院 | Aerostat air bag leakage detection system and method based on synchronous measurement data fusion |
| CN105841881A (en) * | 2016-03-21 | 2016-08-10 | 张�杰 | Vacuum degree detection structure and detection method of external compound packaged five-layer coextrusion infusion bag |
| CN106289677A (en) * | 2016-08-09 | 2017-01-04 | 桐城运城制版有限公司 | A kind of device of quick detection sealing performance of soft packing bag |
| CN109506843A (en) * | 2018-12-10 | 2019-03-22 | 上海交通大学 | Mating surface leakage region measuring system and method based on dyeing theory |
| CN109850282A (en) * | 2018-12-25 | 2019-06-07 | 宁波鸭妹子食品有限公司 | Puffed food plastic bag seals detection device |
| CN110553925A (en) * | 2019-07-26 | 2019-12-10 | 中国航空工业集团公司济南特种结构研究所 | Device for testing tensile and compressive strength of structural element under high-temperature condition |
| CN110553925B (en) * | 2019-07-26 | 2022-03-15 | 中国航空工业集团公司济南特种结构研究所 | Device for testing tensile and compressive strength of structural element under high-temperature condition |
| CN110815947A (en) * | 2019-11-26 | 2020-02-21 | 湖南买买提环保科技有限公司 | Instant air supplement unit for bag making machine |
| CN110815947B (en) * | 2019-11-26 | 2021-06-29 | 湖南买买提环保科技有限公司 | Instant air supplement unit for bag making machine |
| CN111735707A (en) * | 2020-06-29 | 2020-10-02 | 天津市捷威动力工业有限公司 | Method and device for testing packaging strength of lithium ion soft package battery |
| CN113953193A (en) * | 2021-10-28 | 2022-01-21 | 河南米立方食品有限公司 | Puffed food plastic bag seals detection device |
| CN113953193B (en) * | 2021-10-28 | 2023-09-12 | 河南米立方食品有限公司 | Puffed food plastic bag seals detection device |
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Open date: 20090422 |