CN103162921B - The Pinhole method of hermetically sealed package - Google Patents
The Pinhole method of hermetically sealed package Download PDFInfo
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- CN103162921B CN103162921B CN201110412383.XA CN201110412383A CN103162921B CN 103162921 B CN103162921 B CN 103162921B CN 201110412383 A CN201110412383 A CN 201110412383A CN 103162921 B CN103162921 B CN 103162921B
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- hermetically sealed
- sealed package
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- insulating material
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- Examining Or Testing Airtightness (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention relates to a kind of Pinhole method that food, medical supplies etc. need complete seal-packed article.The conducting objects of being packed parcel by insulating material is placed on immediately below a pair detecting electrode; One detecting electrode is connected with the positive pole of high-voltage power supply by wire, and another detecting electrode is by ground connection after wire access current sensing means; Two detecting electrode levels are put, spaced certain distance, and this distance can prevent two electrodes from causing short circuit due to high-voltage breakdown air; The stainless steel pelletron of two electrodes contacts with the insulating material surface of package of hermetically sealed package; High-voltage power supply applies high-tension electricity by detecting electrode to hermetically sealed package, and hermetically sealed package is charged; Pinhole; Exchange the polarity of two detecting electrodes, Pinhole.The present invention can realize the high speed harmless Pinhole online to package product, and can detect that diameter is less than the small pin hole of 0.5um, precision is high.
Description
Technical field
The present invention relates to a kind of Pinhole method that food, medical supplies etc. need complete seal-packed article.
Background technology
At food and medical supplies production field, for ensureing that product remains on sterilizing state, mostly adopt vacuum sealed package.And once pack generation pin hole, packing material contacts with air, food will rot, and has a strong impact on its shelf-life; Medical supplies, if blood plasma etc. is by contaminated, even produces the life security of people and threaten.So very important to the Pinhole of hermetically sealed package.
At present, mainly contain following several to the Pinhole method of hermetically sealed package:
Whether dye liquor method, is placed on tested packing material and is equipped with in the container of colored liquid, pressurize in container, through after a period of time, takes out tested packing material, opens packaging, observe object in packaging and be colored, thus judge to pack whether there is pin hole.
Air pressure difference detection method, puts into airtight container by tested packing material, container is evacuated, as sealed packet pin hole is housed time, air enters container by pin hole, produces pressure differential, whereby pressure difference detection needle outlet in vacuum tank.
Crystallization method, the method is applicable to be detected and packs the character that interior liquid has crystallization.Tested packing material is placed a period of time, and pin hole portion can produce crystalline solid, thus has judged pin hole.
Several Pinhole method to hermetically sealed package is above all based on the sampling Detection to detected material, and substantially belongs to destructive and detect, and cannot meet the online Requirements of Nondestructive Testing product on production line being carried out to 100%.
Summary of the invention
For Shortcomings part in prior art, the technical problem to be solved in the present invention proposes a kind of method that can can't harm Pinhole to hermetically sealed package to be checked online.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of Pinhole method of hermetically sealed package, and wrappage have insulativity, and are closely wrapped in packed article surface; Packed article has electric conductivity, and its detection method comprises the following steps:
The conducting objects of being packed parcel by insulating material is placed on immediately below a pair detecting electrode;
One detecting electrode is connected with the positive pole of high-voltage power supply by wire, and another detecting electrode is by ground connection after wire access current sensing means;
Two detecting electrode levels are put, spaced certain distance, and this distance can prevent two electrodes from causing short circuit due to high-voltage breakdown air;
The stainless steel pelletron of two electrodes contacts with the insulating material surface of package of hermetically sealed package;
High-voltage power supply applies high-tension electricity by detecting electrode to hermetically sealed package, and hermetically sealed package is charged;
When the insulating material of hermetically sealed package pack the part contacted with ground-electrode there is pin hole time, hermetically sealed package is discharged to detecting electrode by pin hole, current sensing means detects this discharge current, thus judges that the insulating package that contacts with ground-electrode exists pin hole; When insulating material packaging does not exist pin hole, current sensing means will can't detect this discharge current;
Exchange the polarity of two detecting electrodes, namely former ground-electrode connects the positive pole of high-voltage power supply, and the former detecting electrode ground connection connecing high-voltage power cathode, whether the another part detecting the insulating material packaging of hermetically sealed package exists pin hole.
Described two detector electrode structure are identical, are made up of derby and the stainless steel pelletron be embedded in below derby.
The stainless steel steel ball that described stainless steel pelletron is less than 2 millimeters by diameter conspires to create.
Described high-tension electricity is 0.6KV-30KV.
The present invention has following beneficial effect and advantage:
1. the present invention can realize the high speed harmless Pinhole online to package product.
2. the present invention can detect that diameter is less than the small pin hole of 0.5um, and precision is high.
Accompanying drawing explanation
Fig. 1 is detecting electrode front view;
Fig. 2 is that a detecting electrode left side is attempted;
Fig. 3 is embodiments of the invention structural drawing.
Embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
As shown in Figure 3, the conducting objects U2 being packed U3 parcel by insulating material is placed on immediately below a pair detecting electrode U4, U5.Wherein a detecting electrode U4 is connected with the positive pole of high-voltage power supply U8 by wire, and another detecting electrode U5 is by ground connection after wire access current sensing means U9.Detecting electrode U4, U5 are made up of derby U6 and the stainless steel pelletron U7 be embedded in below derby U6; The stainless steel steel ball that wherein stainless steel pelletron U7 is less than 2 millimeters by diameter conspires to create.Two detecting electrode U4, U5 levels are put, spaced certain distance, cause short circuit to prevent two electrode U4, U5 due to high-voltage breakdown air.U3 surface contact packed by the stainless steel pelletron U7 of two electrode U4, U5 and the insulating material of hermetically sealed package U1.
High-voltage power supply U8 applies 0.6KV-30KV high-tension electricity by detecting electrode U4 to hermetically sealed package U1, and hermetically sealed package U1 is charged.When there is pin hole in the part that the insulating material packaging U3 of hermetically sealed package U1 contacts with ground-electrode U5, hermetically sealed package U1 is discharged to detecting electrode U5 by pin hole, current sensing means U9 detects this discharge current, thus judges that the insulating material contacted with ground-electrode U5 is packed on U3 and be there is pin hole.And when insulating material packaging U3 does not exist pin hole, current sensing means U9 will can't detect this discharge current.Exchange the polarity of two detecting electrode U4, U5, namely former ground-electrode U5 connects the positive pole of high-voltage power supply U8, and the former detecting electrode U4 ground connection connecing high-voltage power supply U8 positive pole, whether the another part detecting the insulating material packaging U3 of hermetically sealed package U1 exists pin hole, thus completes the Pinhole to whole hermetically sealed package U1.
Claims (2)
1. a Pinhole method for hermetically sealed package, it is characterized in that, wrappage have insulativity, and are closely wrapped in packed article surface; Packed article has electric conductivity, and its detection method comprises the following steps:
The conducting objects of being packed parcel by insulating material is placed on immediately below a pair detecting electrode;
One detecting electrode is connected with the positive pole of high-voltage power supply by wire, and another detecting electrode is by ground connection after wire access current sensing means;
Two detecting electrode levels are put, spaced certain distance, and this distance can prevent two electrodes from causing short circuit due to high-voltage breakdown air;
Described two detector electrode structure are identical, are made up of derby and the stainless steel pelletron be embedded in below derby;
The stainless steel pelletron of two electrodes contacts with the insulating material surface of package of hermetically sealed package; The stainless steel steel ball that described stainless steel pelletron is less than 2 millimeters by diameter conspires to create;
High-voltage power supply applies high-tension electricity by detecting electrode to hermetically sealed package, and hermetically sealed package is charged;
When the insulating material of hermetically sealed package pack the part contacted with ground-electrode there is pin hole time, hermetically sealed package is discharged to detecting electrode by pin hole, current sensing means detects this discharge current, thus judges that the insulating package that contacts with ground-electrode exists pin hole; When insulating material packaging does not exist pin hole, current sensing means will can't detect this discharge current;
Exchange the polarity of two detecting electrodes, namely former ground-electrode connects the positive pole of high-voltage power supply, and the former detecting electrode ground connection connecing high-voltage power cathode, whether the another part detecting the insulating material packaging of hermetically sealed package exists pin hole.
2. the Pinhole method of hermetically sealed package according to claim 1, is characterized in that: described high-tension electricity is 0.6KV-30KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412383.XA CN103162921B (en) | 2011-12-12 | 2011-12-12 | The Pinhole method of hermetically sealed package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110412383.XA CN103162921B (en) | 2011-12-12 | 2011-12-12 | The Pinhole method of hermetically sealed package |
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| Publication Number | Publication Date |
|---|---|
| CN103162921A CN103162921A (en) | 2013-06-19 |
| CN103162921B true CN103162921B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110412383.XA Active CN103162921B (en) | 2011-12-12 | 2011-12-12 | The Pinhole method of hermetically sealed package |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799280A (en) * | 2017-11-15 | 2019-05-24 | 中国科学院沈阳自动化研究所 | The Pinhole detecting device and method of plastic film |
| CN110987298B (en) * | 2019-12-10 | 2021-09-24 | 楚天科技股份有限公司 | Leak detector function test sample bottle group, manufacturing method and leak detector function test method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162741A (en) * | 1996-02-16 | 1997-10-22 | 乔维恩电机株式会社 | Method for inspecting hermetically sealed package |
| CN1407934A (en) * | 1999-12-03 | 2003-04-02 | 乔维恩电机株式会社 | Method and device for inspecting sealed packages |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232337A (en) * | 1985-08-06 | 1987-02-12 | Shinko Denki Keiso Kk | Inspection method for pin hole or the like of sealed package body |
| JP3494585B2 (en) * | 1999-03-10 | 2004-02-09 | ジョーベン電機株式会社 | Inspection method of sealed package |
| JP2003194662A (en) * | 2001-12-27 | 2003-07-09 | Nihon Tetra Pak Kk | Sealing state inspection device |
| JP3940311B2 (en) * | 2002-04-15 | 2007-07-04 | ジョーベン電機株式会社 | Pinhole inspection method for insulation coating |
| JP5492504B2 (en) * | 2009-09-16 | 2014-05-14 | 株式会社ミューチュアル | Sealed package inspection equipment |
-
2011
- 2011-12-12 CN CN201110412383.XA patent/CN103162921B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1162741A (en) * | 1996-02-16 | 1997-10-22 | 乔维恩电机株式会社 | Method for inspecting hermetically sealed package |
| CN1407934A (en) * | 1999-12-03 | 2003-04-02 | 乔维恩电机株式会社 | Method and device for inspecting sealed packages |
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| Publication number | Publication date |
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| CN103162921A (en) | 2013-06-19 |
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