JPS6311830A - Method and apparatus for inspecting leak of container - Google Patents
Method and apparatus for inspecting leak of containerInfo
- Publication number
- JPS6311830A JPS6311830A JP15560686A JP15560686A JPS6311830A JP S6311830 A JPS6311830 A JP S6311830A JP 15560686 A JP15560686 A JP 15560686A JP 15560686 A JP15560686 A JP 15560686A JP S6311830 A JPS6311830 A JP S6311830A
- Authority
- JP
- Japan
- Prior art keywords
- container
- helium
- gas
- open end
- leakage
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 13
- 239000001307 helium Substances 0.000 claims abstract description 42
- 229910052734 helium Inorganic materials 0.000 claims abstract description 42
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000007789 gas Substances 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims description 24
- 238000007689 inspection Methods 0.000 abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 3
- 239000011888 foil Substances 0.000 abstract description 3
- 238000010926 purge Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005303 weighing Methods 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
【発明の詳細な説明】
（発明が属する技術分野）
本発明は飲料等の流体ケ収容するための容器の漏れを検
出するための検査方法及び装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention pertains) The present invention relates to an inspection method and apparatus for detecting leakage in containers for containing fluids such as beverages.
（従来の技術及びその問題点）
容品にピンホールが存在すると、飲料等の流体を封入し
て製品とした後漏几が生じるため、容器の製造工程後に
漏れの可能性があるか否か試験ンする必要がある。この
ような試験には、容器にぬれ性の良い染料溶液を充填し
参み出しの状況で判断する、いわゆるＶラドチェック液
性や、容器を７０圧しその後の圧力低下による加圧法な
どによりなされている。(Prior art and its problems) If there is a pinhole in a container, leakage will occur after a fluid such as a drink is sealed and the product is made into a product.Therefore, whether or not there is a possibility of leakage after the container manufacturing process. I need to take a test. Such tests include the so-called V-Radcheck liquid property test, in which a container is filled with a dye solution with good wettability and judgment is made based on the appearance of seepage, and the pressurization method, in which the container is held at 70 pressure and then the pressure is lowered. There is.
これらの方法は、かなり小さなピンホールまで検知でき
るようにするには非常に長時間を要し、またレッドチェ
ック液性では液体ン用いろため検知できるピンホールの
犬ぎさは液体の通過を許丁ものまでに限られ、また加圧
法は圧力による変形の大きな紙容器には使えないという
問題がある。These methods require a very long time to be able to detect even fairly small pinholes, and Red Check liquids require very little liquid, so the pinholes that can be detected are too narrow to allow liquid to pass through. There is also the problem that the pressurization method cannot be used for paper containers that deform significantly due to pressure.
本発明は、上述の問題乞解消丁べく、小さなピンホール
も短時間で検出でき、かつ紙を含むどのような素材の容
器にも使用できる＠前方法及び装置暑提供するごとを目
的とする。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide a method and apparatus that can detect even small pinholes in a short time and can be used for containers made of any material including paper.
（問題点を解決する手段）
本発明では、容器の開放端を流体を利用してシールする
ことにより、そのシール効果を完全にし、これによって
検査のための流体としてガス？利用できるようにし、容
器から漏れた検査用カスの存在を検知するようになし、
これによって小さなピンホールの存在も短時間で検知す
ることＺ可能にした。(Means for Solving the Problems) In the present invention, the open end of the container is sealed using a fluid, thereby perfecting the sealing effect, and thereby using gas as the fluid for inspection. be made available to detect the presence of test residue leaking from the container;
This makes it possible to detect even small pinholes in a short time.
（実施例）
第１図は本発明による容器の漏れ検査方法を実施する１
こめに用いる装置の一例の断面図であり、この装置にお
いては容器の開放端のシールには水を用いる。(Example) Figure 1 shows a method for testing container leakage according to the present invention.
1 is a cross-sectional view of an example of a device used for this purpose, in which water is used to seal the open end of the container.
第１図の例では、検食装置は、基部２を備えたカップ状
部材１を有している。この基部は、内面をアルミ箔で被
覆した紙製の容器６１その開放端４を下にした状態で支
持する形状を有する。基部２には水の供給路５が形成さ
れており、該供給路はバイブロにより、カップ状部材１
より筒い位置に配置された水槽１０に接続されている。In the example of FIG. 1, the food inspection device has a cup-shaped member 1 with a base 2. In the example shown in FIG. This base has a shape that supports a paper container 61 whose inner surface is covered with aluminum foil with its open end 4 facing down. A water supply path 5 is formed in the base 2, and the water supply path is connected to the cup-shaped member 1 by a vibro.
It is connected to a water tank 10 located at a more cylindrical position.
バイブロには弁７が設けられ流路な開閉する。このよう
に、本実施例では、供給路５．バイブロ、水槽１０及び
弁７は、水の供給装置を形成している。The vibro is provided with a valve 7 to open and close the flow path. In this way, in this embodiment, the supply path 5. The vibro, the water tank 10 and the valve 7 form a water supply device.
築部２にはまた排水路８が設けられ、該排水路は弁子９
によって開閉できる。基部２にはさらにヘリウム供給路
１１及び排気路１２が形成されており、またこれらに連
通したヘリウム供給チューブ１６及び排気チューブ１４
が基部２かも上方に伸びている。これらチューブは容器
３を基部上に支持し定状態で容器内にくるよう位置決め
されている。ヘリウム供給路１１はヘリウム供給パイプ
１５を介し加圧されたヘリウム供給源１６に接続されて
（・る。尚、ヘリウムの圧力は、供給源１６より容器６
内への流入を可能にするのみでよく、篩い圧力のヘリウ
ムは不要である。供給パイプ１５は弁１７によって加圧
空気の供給源２０にも接続されており、該弁は、ヘリウ
ム供給源１６及び空気供給源２０のいづれもしゃ断する
位置と、ヘリウムのみを容器に供給する位置及び空気の
みを容器に供給する位置の６つの位置をとり得ろ。この
例において、供給源１６．弁１７．供給路１１及びチュ
ーブ１６は検査用のガスの供給装置を形成している。The built-up part 2 is also provided with a drainage channel 8, which is connected to a valve 9.
Can be opened and closed by A helium supply path 11 and an exhaust path 12 are further formed in the base 2, and a helium supply tube 16 and an exhaust tube 14 are connected to these.
The base 2 also extends upward. These tubes support the container 3 on the base and are positioned so as to be stationary within the container. The helium supply path 11 is connected to a pressurized helium supply source 16 via a helium supply pipe 15.
sieve pressure helium is not required. The supply pipe 15 is also connected to a supply source 20 of pressurized air by a valve 17, which has two positions: one in which both the helium supply source 16 and the air supply source 20 are cut off, and the other in which only helium is supplied to the container. and a position where only air is supplied to the container. In this example, source 16. Valve 17. The supply path 11 and the tube 16 form a testing gas supply device.
排気路１２は弁１８’ａ−備えた排気パイプ１９に接続
され、該パイプはカップ状部材１から光分離れた位置あ
るいはカップ状部材を置いている部屋とは別の部屋まで
延ばしそこで大気に開放する。The exhaust passage 12 is connected to an exhaust pipe 19 provided with a valve 18'a, which extends to a position optically separated from the cup-like member 1 or to a room other than the room in which the cup-like member is placed, where it is exposed to the atmosphere. Open.
符号２１はヘリウム俣出器２２の測定端子であリ、この
実施例では容器乙の閉鎖端２′５上にのせることができ
る形状Ｙ！し、かつ容Ｆｉ’ａ＝測定時中そのままの位
置に保持する重りとして慎能できる重量を有する。測定
端子には吸引孔２４が設けてあり、これらを通して吸引
された気体はダクト２５を通り検出器本体２６に達し、
そこでヘリウムが定量される。このように特定のガスの
存在を知りあるいはそれに加え量を測定するためのガス
検出器はヘリウムあるいはその他の気体についても周知
であり、任意の構成のものが使用できる。例えハ商品名
「フロンガス」として仰られている気体と該気体に含ま
れるハロゲン元系を検知するいわゆる「ハロゲンディテ
クター」との組合せも使用できる。Reference numeral 21 is the measuring terminal of the helium dispenser 22, which in this embodiment has a shape Y that can be placed on the closed end 2'5 of the container A! and has a weight that can be used as a weight to hold it in the same position during measurement. The measurement terminal is provided with suction holes 24, and the gas sucked through these passes through a duct 25 and reaches the detector main body 26.
There helium is quantified. Gas detectors for detecting the presence of a specific gas or measuring the amount thereof are well known for helium or other gases, and any configuration can be used. For example, a combination of a gas referred to under the trade name "Freon gas" and a so-called "halogen detector" for detecting the halogen element contained in the gas can also be used.
容器３は通常筒状の本体を作る際に長手方向に他より肉
厚となったシーム部が形成され、アルミニウム箔の底板
２７乞筒状の本体に接着する除シーム部の付近の接看部
にピンホールができ易（、検量に当っては従って容器の
閉鎖端２３からの漏ｎが確実に恢出できるようにな丁必
要がある。図示の例では、底板２７は内圧に応じ容易に
変形するよ５薄い材料から成り、その保護の１こめ紙製
のカバー２８が接着されている。カバー２８は七の内部
と外部に圧力差が生じないようベント孔２９乞有し、測
定端子は容器の閉鎖端にかぶさりベント孔２９より流出
するヘリウムを吸引できるようになっている。図示のよ
うな紙の容器の場合、開放端４におけるシールが完全で
ないと、七の端面から検査用ガスが紙白の繊維間の丁き
間乞通り閉鎖端２６に達してしま５Ｔこめ、検査が不可
能になることが理解できよう。When the container 3 is made into a cylindrical body, a seam part that is thicker in the longitudinal direction is usually formed, and a bottom plate 27 of aluminum foil is attached to the cylindrical body in the vicinity of the unseamed part. Pinholes are easily formed in the container (therefore, during weighing, it is necessary to ensure that leakage from the closed end 23 of the container can be extracted).In the illustrated example, the bottom plate 27 is easily It is made of a thin material that is easily deformed, and a paper cover 28 is glued to protect it.The cover 28 has a vent hole 29 to prevent pressure difference between the inside and outside of the case. It covers the closed end of the container so that the helium flowing out from the vent hole 29 can be sucked in. In the case of a paper container like the one shown in the figure, if the seal at the open end 4 is not perfect, the test gas will leak from the end surface of the container. It can be seen that once the gap between the white paper fibers reaches the closed end 26, inspection becomes impossible.
第１図の装置により横歪７行う場合、ヱず弁子９を移動
させて、その前の測定後に残っている水を排水路８を通
じ排水する。尚、基部２にはせき部６１が形成されてい
てわずかな水は残るようになっている。この排水の際、
弁７を開さｍＴこな水が流れるようにする。これは前に
使つ１こ水に皺任するヘリウムの影響を完全になく丁１
こめで、測定の精度７七こまで上げろ必要かない場合、
率に前回用いた水を排水するだけでもよい。次いで弁子
９により排水路が閉じられ弁７が閉じられた状態で容器
６が開放端４を下にして置かれその閉鎖端２３上に測定
端子２１が置かれる。次ぎに弁１７によって加圧ヘリウ
ム供給源１６より容器内にヘリウムが供給されまたこの
量弁１８は開かれ容器内の空気は追出される。この際パ
イプ１９から一部ヘリウムが出るが、前述のようにパイ
プ１９は測定に影響のない位置まで延びている。尚、第
１図の例のように、測定端子２１が容器１を閉鎖する如
き形態を有する場合にはパイプ１９をカップ状部材１の
近（で開放するよ５にしても検査は可能である。When transverse straining 7 is carried out using the apparatus shown in FIG. Note that a weir 61 is formed in the base 2 so that a small amount of water remains. During this drainage,
Open valve 7 to allow water to flow. This completely eliminates the effect of helium that causes water to be used before.
If it is not necessary, increase the measurement accuracy to 77 points.
You can simply drain the water used last time. Next, with the drain channel closed by the valve 9 and the valve 7 closed, the container 6 is placed with the open end 4 facing down, and the measurement terminal 21 is placed on the closed end 23 thereof. Helium is then supplied into the container from the pressurized helium source 16 by means of valve 17, and this quantity valve 18 is opened to expel the air within the container. At this time, some helium comes out from the pipe 19, but as described above, the pipe 19 extends to a position where it does not affect the measurement. In addition, as in the example shown in FIG. 1, when the measuring terminal 21 has a form that closes the container 1, inspection is possible even if the pipe 19 is opened near the cup-shaped member 1 (5). .
弁１７．１８ ’＆閉じた抜弁７を開けろと、水はカッ
プ状部材１内に供給され、水槽１０内の水面の位置に応
じた圧力で容器６内のヘリウムを圧縮する。この状態で
一定時間経過する間の漏れの総量かヘリウム検出器２２
により測定される。尚、このヘリウムの加圧については
、水に依存することな（、ヘリウムの圧力自体をはじめ
から所定の横置圧力に保つようにしてもよい。When the valves 17, 18' and the closed vent valve 7 are opened, water is supplied into the cup-shaped member 1 and compresses the helium in the container 6 with a pressure depending on the position of the water surface in the water tank 10. The helium detector 22 determines the total amount of leakage during a certain period of time in this state.
It is measured by Note that the pressurization of helium does not depend on water (the pressure of helium itself may be maintained at a predetermined horizontal pressure from the beginning).
測定後は弁１８が開かれると共に弁１７の操作により加
圧空気の供給源２０から容器乙に空気が供給され、内部
のヘリウムが完全に追い出され、七の後、測定端子２１
乞持上げ容器ン取除（。このよう罠、本例では、供給源
２０．弁１７．パイプ１５．供給ｖ６１１．チューブ１
３．１４ 、併気路１２）パイプ１９及び弁１８は掃気
装置を形成している。而、検出器２２を、１つの容器の
検量が終了した後火の検査の開始時まで、吸引孔２４か
もガスが吸引されない形式とするか、あるいはその間の
測定により必要な測定値が影響されないように丁れば、
上述した掃気装置を形成しな（ともよ（、容器の周りか
らヘリウムか逃げるのを待って次の容器のセット７行う
か、先の容器を取外した後ファン等によりヘリウムをと
は丁ようにしてもよい。After measurement, the valve 18 is opened, and air is supplied from the pressurized air supply source 20 to the container B by operating the valve 17, and the helium inside is completely expelled.
Lift the container and remove it (such a trap, in this example, supply source 20. valve 17. pipe 15.
3.14, combined air passage 12) The pipe 19 and the valve 18 form a scavenging device. Therefore, the detector 22 should be of a type in which gas is not sucked into the suction hole 24 until the start of the fire inspection after the calibration of one container is completed, or the necessary measured values should not be affected by measurements during that time. If you cut it into pieces,
Do not form the scavenging device described above. Either wait for the helium to escape from around the container before setting the next container, or remove the previous container and remove the helium using a fan etc. Good too.
尚、本発明の発明者は容器６内にかかる圧力馨０、 Ｉ
Ｋ９／ｃａｔ （ゲージ圧）とし６０秒間の漏れ量を
測定し、１０ （ＴｏｒｒＡ／５ｅｃ）の漏れ量ノ容
器はＶラドチェック法ではＦ１１２時間の放置時間力）
必要であることを確認し、本発明により測定が従来より
悌めて短時間に行えることを確認した。さらに漏れ量１
Ｏ−６（Ｔｏｒｒｌ／５ｅｃ）以下の容６＆？Ｊ、ｃ６
とレッドチェック液性では４８時間以上経過しても漏れ
がなく、これによってレッドチェック法では実際上は不
可能な小さなピンホールの検出も可能であることを確認
した。Incidentally, the inventor of the present invention has determined that the pressure applied inside the container 6 is 0, I
Measure the leakage amount for 60 seconds at K9/cat (gauge pressure), and if the container has a leakage amount of 10 (TorrA/5ec), the leakage rate is F112 hours using the Vrad check method.
It was confirmed that this was necessary, and that the present invention enabled measurements to be carried out in a shorter time than in the past. In addition, leakage amount 1
6&? below O-6 (Torrl/5ec)? J, c6
With the Red Check liquid, there was no leakage even after 48 hours had passed, confirming that it was possible to detect small pinholes, which is practically impossible with the Red Check method.
第２図は容器６のシールに墾気ビ用いろ場合の装置の断
面図で、該装置はマンドレル４１を有している。マンド
レルには下部周方向溝４２と上部周方向溝４６とが形成
されていて、下部周方向溝からは空気供給路４４が、−
１：１こ上部周方向溝からは排気路４５が各々延びてい
る。さらに頂部で開口するヘリウム供Ｈｗ５４６が設け
られ、該供給路は供給パイプ４７乞介し加圧さ７ｔタヘ
リウムの供給源４８に接続されている。供給パイプ４７
には弁４９が設けられ管路を開閉する。空気供給路４４
も供給パイプ５１ケ介し加圧空気の供給源５２に接続さ
れ、また升５６を有し該升は加圧空気？空気供給路４４
へのみ送る位置と空気供給路４４及び接続パイプ５４０
両方へ窒気乞送る位置とをとり得る。また弁４９はヘリ
ウム乞ヘリウム供絽路４７へ送る位置と、それをしゃ断
して弁５６からの空気をヘリウム供給１ｉ￥８４６へ送
る位置とをとり得ろ。FIG. 2 is a cross-sectional view of the apparatus for sealing the container 6 using a pneumatic screw, the apparatus having a mandrel 41. A lower circumferential groove 42 and an upper circumferential groove 46 are formed in the mandrel, and an air supply path 44 is formed from the lower circumferential groove to -
Exhaust passages 45 extend from the 1:1 upper circumferential grooves. Furthermore, a helium supply Hw 546 that opens at the top is provided, and this supply path is connected to a supply source 48 of pressurized 7t tahelium through a supply pipe 47. Supply pipe 47
A valve 49 is provided to open and close the pipeline. Air supply path 44
It is also connected to a supply source 52 of pressurized air through a supply pipe 51, and has a cell 56, which cell is connected to a supply source 52 of pressurized air. Air supply path 44
position, air supply path 44 and connecting pipe 540
It can take a position that sends suffocation to both. Further, the valve 49 can take a position where helium is supplied to the helium supply line 47, and a position where it is cut off and air from the valve 56 is sent to the helium supply line 1i\846.
排気路４５は排気パイプ５５に接続しており、該パイプ
にはそれを開閉する弁５６が設けられている。こｎら排
気路４５．パイプ５５及び弁５６は本例において排気装
置を形成している。The exhaust path 45 is connected to an exhaust pipe 55, and the pipe is provided with a valve 56 for opening and closing it. These exhaust passages 45. The pipe 55 and the valve 56 form an exhaust system in this example.
第２図の例では、ヘリウム検出器５７は、容器乙の閉鎖
端２３に２けるカバー２８のベント孔２９に近づけて操
作者が手で持ったままその場に維持する小さな測定端子
５８ン有するものである。In the example of FIG. 2, the helium detector 57 has a small measuring terminal 58 which is held in place by the operator in the closed end 23 of the container near the vent hole 29 of the cover 28. It is something.
マンドレル４１０基部には、容器６の開放端４に７する
ゴムのシールリング４０が設けられている。尚、かかる
シールリングは特に紙容器の場合などはそれに強く押工
ことができず、シールリングのみにより完全な封止は望
めない。The base of the mandrel 410 is provided with a rubber sealing ring 40 that connects to the open end 4 of the container 6. Note that such a seal ring cannot be strongly pressed into paper containers, and complete sealing cannot be expected with the seal ring alone.
第２図の装置を用いて検査を行う場合、まず容器６をマ
ンドレル４１にかぶせる。この時供給路４４がら空気が
下部周方向溝４２に供給され続けている状態で容器をか
ぶせてもよく、また容器をかぶせた後に弁５６を操作し
空気乞導入してもよい。このとき弁５６は開いたままに
してお（。次いで弁４９を操作しヘリウム供給路４６に
流子。When performing an inspection using the apparatus shown in FIG. 2, first the container 6 is placed over the mandrel 41. At this time, the container may be covered while air is being continuously supplied to the lower circumferential groove 42 from the supply path 44, or the valve 56 may be operated to introduce air after the container is covered. At this time, the valve 56 is kept open (.Next, the valve 49 is operated to supply fluid to the helium supply path 46.
この間、下方周方向溝４２から常に上方周方向溝４６に
空気が流れそれが排気パイプ５５を通し排出されている
ため、ヘリウムが容器６の開放端４に達することはない
。During this time, air always flows from the lower circumferential groove 42 to the upper circumferential groove 46 and is exhausted through the exhaust pipe 55, so that helium never reaches the open end 4 of the container 6.
この状態で弁４９及び５６が閉じられると加圧空気の供
給源５２の圧力がそのまま作用し、容器６内は閉鎖端２
６付近のヘリウム層を含めその圧力に維持される。尚、
この圧力によってヘリウムが供給路４６に押戻されない
ように供給路４６の開口部に破線で示す如（一方向弁を
設けてもよい。When the valves 49 and 56 are closed in this state, the pressure of the pressurized air supply source 52 acts as it is, and the inside of the container 6 is kept at the closed end 2.
The pressure is maintained at that pressure, including the helium layer around 6. still,
To prevent helium from being pushed back into the supply channel 46 by this pressure, a one-way valve (as shown by the broken line) may be provided at the opening of the supply channel 46.
この状態を一定時間維持し七の間のヘリウムの漏れ量を
ヘリウム検ｌｆｆ器５７により測定する。尚、本発明の
発明者は、ヘリウムの容器内で維持される圧力を０．１
ゆ／Ｃ！１ｔ（ゲージ圧）、測定時間を６０秒として試
ＭＹ行ない、上述した水でシールする場合と同様の結果
を得た。This state is maintained for a certain period of time, and the amount of helium leaked during this period is measured by a helium detector 57. The inventor of the present invention has determined that the pressure maintained within the helium container is 0.1
Yu/C! Trial MY was carried out using a pressure of 1 t (gauge pressure) and a measurement time of 60 seconds, and the same results as in the case of sealing with water described above were obtained.
測定後、弁５６を開放し、−！−弁４９．５３を操作し
て、供給路４４．４６のいづれにも空気を送り、容器６
内から完全にヘリウムを追放する。After the measurement, the valve 56 is opened and -! - Operate the valves 49.53 to supply air to either of the supply channels 44.46 and the containers 6
Completely expel helium from within.
（発明の効果）
本発明では、流体により容器の開放端のシールを行うよ
うにした１こめ、そのシールは完全であり、従って検査
用にガスを用いても容器のピンホール部以外から流れ１
こガスにより測定誤差が生じることがない。この効果は
、特に紙の容器の検査の場合、通常のシール手段では開
放端における紙の端面から紙の繊維間の空間を伝わり閉
鎖端にガスが到達シてしまう１こめ、このようなガスの
通過も確実に阻止できる点で重要である。(Effects of the Invention) In the present invention, since the open end of the container is sealed with a fluid, the seal is perfect. Therefore, even if gas is used for inspection, no flow will flow from other than the pinhole portion of the container.
This gas will not cause measurement errors. This effect is especially important when inspecting paper containers, since with normal sealing means gas can travel from the paper end face at the open end through the spaces between the paper fibers and reach the closed end. This is important because it can reliably prevent passage.
このように、本発明では、検査用にカスを用いることが
可能になったことに基づき、小さなピンホールの短時間
での検出が可能となつ１こ。As described above, in the present invention, it is possible to detect small pinholes in a short time based on the fact that scraps can be used for inspection.
第１図は本発明による漏れ検査方法ケ、シール手段とし
て水を用いて実施するための装置の断面図；
第２図は本発明による漏れ検査方法乞、シール手段とし
て空気を用いて実施するための装置の断面図。FIG. 1 is a sectional view of an apparatus for performing a leak testing method according to the present invention using water as a sealing means; FIG. 2 is a sectional view of an apparatus for performing a leak testing method according to the present invention using air as a sealing means. A cross-sectional view of the device.
Claims (7)
方法において、検査用ガス以外の流体により前記開放端
をシールした状態で検査用ガスを前記容器内に供給し、
該容器からの漏れを前記特定の検査用ガスに感応するガ
ス検出器により検知することを特徴とする容器の漏れ検
査方法。(1) In a method for testing leakage in a container having an open end and a closed end, a test gas is supplied into the container with the open end sealed with a fluid other than the test gas;
A method for testing a container for leakage, comprising detecting leakage from the container using a gas detector sensitive to the specific test gas.
記検査用ガスとしてヘリウムを用いることを特徴とする
容器の漏れ検査方法。(2) A container leakage testing method according to claim 1, characterized in that helium is used as the testing gas.
おいて、前記容器の開放端をシールする流体として水を
用いることを特徴とする容器の漏れ検査方法。(3) A method for inspecting leakage of a container according to claim 1 or 2, characterized in that water is used as the fluid for sealing the open end of the container.
いて、前記容器の開放端をシールする流体として空気を
用いることを特徴とする容器の漏れ検査方法。(4) A method for inspecting leakage of a container according to claim 1 or 2, characterized in that air is used as the fluid for sealing the open end of the container.
装置において、容器の前記開放端を支持する基台部を有
したカップ状部材と、基台部に支持された状態の容器の
開放部をひたす水位にまでカツプ部材に水を供給する装
置と、前記基台部に容器を支持した状態において該容器
内に検査用ガスを供給するガス供給装置と、前記容器よ
り漏れる前記検査用ガスを検知するためのガス検出器と
より成る容器の漏れ検査装置。(5) A device for inspecting leaks in a container having an open end and a closed end, including a cup-shaped member having a base portion that supports the open end of the container, and an opening of the container supported by the base portion. a device for supplying water to the cup member up to a water level that immerses the cup member; a gas supply device for supplying test gas into the container while the container is supported on the base; A container leakage testing device consisting of a gas detector and a gas detector for detecting.
装置において、マンドレルと、該マンドレルにかぶせた
容器の内部に検査用ガスを供給するガス供給装置と、前
記容器より漏れる検査用ガスを検知するためのガス検出
器とより成り、前記マンドレルは下部周方向溝及び上部
周方向溝を有し、下部周方向溝は空気の供給源に接続さ
れ、また上部周方向溝は排気装置に連通しており、また
前記ガス供給装置は前記上部周方向溝よりも上の位置で
開口するマンドレル内の供給路を含み、該供給路は加圧
された検査用ガスの供給源に選択的に接続できるように
構成されていることを特徴とする容器の漏れ検査装置。(6) A device for inspecting leaks in a container having an open end and a closed end, including a mandrel, a gas supply device for supplying a test gas into the inside of a container covered with the mandrel, and a gas supply device for supplying a test gas leaking from the container. a gas detector for sensing, the mandrel having a lower circumferential groove and an upper circumferential groove, the lower circumferential groove being connected to an air supply source, and the upper circumferential groove communicating with an exhaust device. and the gas supply device includes a supply passage in the mandrel that opens above the upper circumferential groove, and the supply passage is selectively connected to a source of pressurized test gas. A container leakage testing device, characterized in that the container is configured to perform the following:
記供給路は加圧された検査用ガスの供給源と加圧された
空気の供給源とに選択的に接続できるように構成されて
いることを特徴とする容器の漏れ検査装置。(7) In the apparatus according to claim 6, the supply path is configured to be selectively connected to a pressurized test gas supply source and a pressurized air supply source. A container leakage testing device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15560686A JPS6311830A (en) | 1986-07-02 | 1986-07-02 | Method and apparatus for inspecting leak of container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15560686A JPS6311830A (en) | 1986-07-02 | 1986-07-02 | Method and apparatus for inspecting leak of container |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24527090A Division JPH03142335A (en) | 1990-09-14 | 1990-09-14 | Inspection device for leakage from vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6311830A true JPS6311830A (en) | 1988-01-19 |
Family
ID=15609700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15560686A Pending JPS6311830A (en) | 1986-07-02 | 1986-07-02 | Method and apparatus for inspecting leak of container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6311830A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016176868A (en) * | 2015-03-20 | 2016-10-06 | 株式会社ガスター | Leak inspection device and leak inspection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819243B2 (en) * | 1974-06-18 | 1983-04-16 | 株式会社クボタ | Stem culm pulling device for mobile agricultural machinery |
| JPS59212732A (en) * | 1983-05-18 | 1984-12-01 | Matsushita Electric Ind Co Ltd | Apparatus for inspecting water leakage of washing machine |
-
1986
- 1986-07-02 JP JP15560686A patent/JPS6311830A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819243B2 (en) * | 1974-06-18 | 1983-04-16 | 株式会社クボタ | Stem culm pulling device for mobile agricultural machinery |
| JPS59212732A (en) * | 1983-05-18 | 1984-12-01 | Matsushita Electric Ind Co Ltd | Apparatus for inspecting water leakage of washing machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016176868A (en) * | 2015-03-20 | 2016-10-06 | 株式会社ガスター | Leak inspection device and leak inspection method |
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