JP2013002812A - Method and system for checking leakage of bag-like container - Google Patents

Method and system for checking leakage of bag-like container Download PDF

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Publication number
JP2013002812A
JP2013002812A JP2011130576A JP2011130576A JP2013002812A JP 2013002812 A JP2013002812 A JP 2013002812A JP 2011130576 A JP2011130576 A JP 2011130576A JP 2011130576 A JP2011130576 A JP 2011130576A JP 2013002812 A JP2013002812 A JP 2013002812A
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Prior art keywords
bag
container
nozzle
supply path
opening
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Koichi Takahashi
浩一 高橋
Kyoko Maeda
京子 前田
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Fukuda Co Ltd
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Fukuda Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/82—Testing the joint
    • B29C65/8207—Testing the joint by mechanical methods
    • B29C65/8246—Pressure tests, e.g. hydrostatic pressure tests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B29C66/53261—Enclosing tubular articles between substantially flat elements
    • B29C66/53262—Enclosing spouts between the walls of bags, e.g. of medical bags
    • B29C66/53263—Enclosing spouts between the walls of bags, e.g. of medical bags said spouts comprising wings, e.g. said spouts being of ship-like or canoe-like form to avoid leaks in the corners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81455—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps being a fluid inflatable bag or bladder, a diaphragm or a vacuum bag for applying isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets

Abstract

PROBLEM TO BE SOLVED: To check leakage of a bag-like container that does not include any mouth member.SOLUTION: A leakage check system comprises a nozzle 10 which is inserted into an opening of a bag-like container 100, and a pair of seal members 20. The pair of seal members 20 seal a gap between the nozzle 10 and the bag-like container 100 by pressing an opening edge 103a of the bag-like container 100 in the state where the nozzle 10 is inserted into the opening 103 of the bag-like container 100. Further, the leakage check system comprises a compressed air supply path 1 connected to the nozzle 10, a pressure sensor 5 and a differential pressure sensor 7 connected to the compressed air supply path 1. In such a sealed state, compressed gas is supplied from the compressed air supply path 1 through the nozzle 10 to the bag-like container 100 and then, fluctuation in pressure of a closed system of the compressed air supply path 1 including the bag-like container 100 is detected by the pressure sensor 5 and the differential pressure sensor 7, thereby determining the presence/absence of leakage of the bag-like container 100.

Description

本発明は、柔軟な袋状容器の漏れを検査する方法およびシステムに関する。   The present invention relates to a method and system for inspecting a flexible bag-like container for leaks.

近年、パウチ容器と称される柔軟な袋状容器が、飲料、洗剤等の流動性の内容物を収容するための容器として多用されている。
この袋状容器には硬質の口部材（飲料用の場合、スパウトと称される）が付けられており、この口部材を介して内容物を充填したり取り出すようになっている。 In recent years, flexible bag-like containers called pouch containers are frequently used as containers for storing fluid contents such as beverages and detergents.
The bag-like container is provided with a hard mouth member (referred to as a spout for beverages), and the contents are filled or taken out through the mouth member.

この袋状液体は、通常、複数のラミネートシートの周縁部を熱溶着等の手段で溶着することにより構成されているが、溶着不良等があると充填された内容物が漏れる可能性がある。
そこで、特許文献１に開示されたシステムでは、内容物を充填する前に、口部材に圧縮エア供給経路を接続し、この圧縮エア供給経路から口部材を介して圧縮エアを袋状容器に供給し、圧縮エア供給経路に接続された圧力センサにより、袋状容器での圧力変動を検出して、漏れがあるか否かを判定している。 This bag-like liquid is usually configured by welding the peripheral portions of a plurality of laminate sheets by means such as heat welding. However, if there is a poor welding or the like, the filled contents may leak.
Therefore, in the system disclosed in Patent Document 1, before filling the contents, a compressed air supply path is connected to the mouth member, and compressed air is supplied from the compressed air supply path to the bag-like container through the mouth member. The pressure sensor connected to the compressed air supply path detects pressure fluctuations in the bag-like container to determine whether or not there is a leak.

特開２０００−７２１０１号公報JP 2000-72101 A

しかし、特許文献１に開示された検査システムでは、圧縮エア供給経路を口部材に接続するため、口部材を備えていない袋状容器や口部材を取り付ける前の袋状容器の漏れ検査を行うことができなかった。   However, in the inspection system disclosed in Patent Document 1, in order to connect the compressed air supply path to the mouth member, a bag-like container that does not include the mouth member or a bag-like container before attaching the mouth member is inspected. I could not.

本発明は上記課題を解決するためになされたものであり、袋状容器の漏れを検査する方法において、
上記袋状容器の開口にノズルを差し込み、
上記ノズルの差し込み状態で、上記袋状容器の開口縁部を一対のシール部材により挟圧することにより、上記ノズルと袋状容器との間をシールし、
上記シール状態で、上記ノズルに接続された圧縮気体供給経路から、上記ノズルを介して上記袋状容器に圧縮気体を供給し、この圧縮気体供給経路での圧力または流量を検出することにより、袋状容器の漏れの有無の情報を得ることを特徴とする。 The present invention has been made to solve the above problems, and in a method for inspecting leakage of a bag-like container,
Insert a nozzle into the opening of the bag-like container,
In the inserted state of the nozzle, by sealing the opening edge of the bag-like container with a pair of seal members, the gap between the nozzle and the bag-like container is sealed,
By supplying compressed gas to the bag-like container through the nozzle from the compressed gas supply path connected to the nozzle in the sealed state, and detecting the pressure or flow rate in the compressed gas supply path, the bag It is characterized in that information on the presence or absence of leakage of the container is obtained.

本発明の他の態様によれば、
ア．袋状容器の開口に差し込まれるノズルと、
イ．上記袋状容器の開口にノズルが差し込まれた状態で、袋状容器の開口縁部を挟圧することにより、ノズルと袋状容器との間をシールする一対のシール部材と、
ウ．上記ノズルに接続され、このノズルを介して袋状容器に圧縮気体を供給する圧縮気体供給経路と、
エ．上記圧縮気体供給経路に接続され、この圧縮気体供給経路での圧力または流量を検出して、袋状容器の漏れの有無の情報を得る検出手段と、
を備えたことを特徴とする。 According to another aspect of the invention,
A. A nozzle inserted into the opening of the bag-like container;
A. In a state where the nozzle is inserted into the opening of the bag-shaped container, a pair of sealing members that seal between the nozzle and the bag-shaped container by clamping the opening edge of the bag-shaped container,
C. A compressed gas supply path connected to the nozzle and supplying compressed gas to the bag-like container through the nozzle;
D. Detecting means connected to the compressed gas supply path, detecting pressure or flow rate in the compressed gas supply path, and obtaining information on the presence or absence of leakage of the bag-like container;
It is provided with.

上記方法およびシステムによれば、口部材を備えていない袋状容器の漏れ検査を確実に行うことができる。   According to the above method and system, it is possible to reliably perform a leak inspection of a bag-like container that does not include a mouth member.

好ましくは、さらに、上記袋状容器がセット位置へ搬入されたりセット位置から搬出される際には、上記ノズルを後退させ、袋状容器がセット位置にセットされた状態で、ノズルを袋状容器の開口に差し込むように移動させるノズル駆動手段と、
上記搬入搬出の際には上記一対のシール部材を互いに離間した位置に後退させ、袋状容器がセット位置にセットされた状態で一対のシール部材を互いに近づけて袋状容器の開口縁部を挟圧するシール部材駆動手段と、
を備えている。
この構成によれば、ノズル差し込み動作およびシール動作を確実に行うことができる。 Preferably, when the bag-like container is carried into or out of the set position, the nozzle is retracted, and the nozzle is placed in the bag-like container with the bag-like container set at the set position. Nozzle drive means for moving so as to be inserted into the opening of
At the time of carrying in and out, the pair of seal members are retracted to positions separated from each other, and the pair of seal members are brought close to each other with the bag-like container set at the set position so as to sandwich the opening edge of the bag-like container. Sealing member driving means for pressing,
It has.
According to this configuration, the nozzle insertion operation and the sealing operation can be reliably performed.

好ましくは、上記ノズルの横断面形状が、上記一対のシール部材の対峙方向と直交する方向に細長い扁平形状をなし、両側縁に向かって先細をなしている。
この構成によれば、シール部材をノズルの両側縁に至るまで良好にノズル形状に追随させることができ、その結果、ノズルの近傍において袋状容器の開口縁部同士を確実に接触させた状態で挟圧することができシール性をより一層高めることができる。 Preferably, the cross-sectional shape of the nozzle has a flat shape elongated in a direction perpendicular to the facing direction of the pair of seal members, and tapers toward both side edges.
According to this configuration, the seal member can be made to follow the nozzle shape well up to the both side edges of the nozzle, and as a result, the opening edges of the bag-like container are reliably in contact with each other in the vicinity of the nozzle. The pressure can be pinched and the sealing performance can be further enhanced.

好ましくは、上記シール部材が柔軟な袋を有し、この袋に圧縮空気を供給して膨らませることにより、上記袋状容器の開口縁部を挟圧する。
これによれば、シール部材の袋はノズル形状に良好に追随でき、その結果、ノズルの近傍において袋状容器の開口縁部同士を確実に接触させた状態で挟圧することができシール性をより一層高めることができる。 Preferably, the sealing member has a flexible bag, and compressed air is supplied to the bag so as to inflate, thereby clamping the opening edge of the bag-like container.
According to this, the bag of the sealing member can follow the nozzle shape satisfactorily, and as a result, the opening edge of the bag-like container can be securely pressed in the vicinity of the nozzle and the sealing performance can be further improved. It can be further enhanced.

本発明方法によれば、口部材を備えていない袋状容器の漏れ検査を確実に行うことができる。   According to the method of the present invention, it is possible to reliably perform a leak inspection of a bag-like container that is not provided with a mouth member.

本発明の第１実施形態に係わる袋状容器の漏れ検査システムを示す概略図であり、袋状容器をセットした状態を示す。It is the schematic which shows the leak inspection system of the bag-shaped container concerning 1st Embodiment of this invention, and shows the state which set the bag-shaped container. 同システムによって検査される袋状容器の正面図である。It is a front view of the bag-like container inspected by the system. 同システムのシール構造を示す概略横断面図であり、（Ａ）はシール前の状態、（Ｂ）はシール状態をそれぞれ示す。It is a schematic cross-sectional view which shows the seal structure of the system, (A) shows the state before sealing, (B) shows the sealing state, respectively. 同システムの大漏れ検査状態を示す図１相当図である。FIG. 2 is a view corresponding to FIG. 1 showing a large leak inspection state of the system. 同システムの微小漏れ検査状態を示す図１相当図である。FIG. 2 is a view corresponding to FIG. 1 showing a minute leak inspection state of the system. シール構造の他の例を示す図３（Ｂ）相当図である。It is a figure equivalent to Drawing 3 (B) showing other examples of seal structure. 本発明の第２実施形態に係わる検査システムの一部を示す概略図である。It is the schematic which shows a part of test | inspection system concerning 2nd Embodiment of this invention.

以下、本発明の第１実施形態について図１〜図６を参照しながら説明する。図１は検査システムの全体を示す。この検査システムを説明する前に、検査対象となる袋状容器１００について説明する。この袋状容器１００は図２に示すように、複数のラミネートシート１０１の周縁を熱溶着により貼り合せることにより構成されている。熱溶着部を符号１０２で示す。この袋状容器１００は熱溶着されていない部位、すなわち開口１０３を有している。   Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows the entire inspection system. Before describing this inspection system, the bag-like container 100 to be inspected will be described. As shown in FIG. 2, the bag-like container 100 is constructed by bonding the peripheral edges of a plurality of laminate sheets 101 by heat welding. Reference numeral 102 denotes a heat welded portion. This bag-like container 100 has a portion that is not thermally welded, that is, an opening 103.

上記開口１０３は、一対の開口縁部１０３ａによって画成されている、開口１０３には後述する検査後に硬質の口部材（図示しない）が装着され、さらにこの口部材から内容物が袋状容器１００に充填されるようになっている。   The opening 103 is defined by a pair of opening edges 103a. A hard mouth member (not shown) is attached to the opening 103 after inspection, which will be described later. It is designed to be filled.

上記検査システムは、圧縮エア供給経路１（圧縮気体供給経路）を有している。この圧縮エア供給経路１には、その基端１ａに圧縮エア源２（圧縮気体源）が接続されており、さらに上流側から下流側に向かって順に圧縮エア圧を設定圧に調整するためのレギュレータ３と電磁開閉弁（開閉弁）ＳＶ１，ＳＶ２，ＳＶ３が設けられている。電磁開閉弁ＳＶ２，ＳＶ３は、袋状容器１００を含む閉鎖系を形成するための閉鎖手段として機能する。   The inspection system has a compressed air supply path 1 (compressed gas supply path). A compressed air source 2 (compressed gas source) is connected to the compressed air supply path 1 at the base end 1a, and the compressed air pressure is adjusted to a set pressure in order from the upstream side to the downstream side. A regulator 3 and electromagnetic open / close valves (open / close valves) SV1, SV2, SV3 are provided. The electromagnetic on-off valves SV2 and SV3 function as closing means for forming a closed system including the bag-like container 100.

さらに上記圧縮エア供給経路１には、電磁開閉弁ＳＶ２、ＳＶ３間にタンク４が接続されている。このタンク４の容量は袋状容器１００より遥かに大きい。
さらに上記圧縮エア供給経路１には、その下流端１ｂと電磁弁ＳＶ３との間に圧力センサ５（検出手段）が接続されており、電磁弁ＳＶ３の上流側と下流側には、差圧センサ６（圧力センサ、検出手段）の２つのポートがそれぞれ接続されている。
上記圧力センサ５および差圧センサ６には、これらセンサ５，６からの検出情報に基づき袋状容器１００の漏れの有無を判断し、その良否を表示する表示部７，８（判定手段、表示手段）がそれぞれ接続されている。 Further, a tank 4 is connected to the compressed air supply path 1 between the electromagnetic on-off valves SV2 and SV3. The capacity of the tank 4 is much larger than that of the bag-like container 100.
Further, a pressure sensor 5 (detection means) is connected to the compressed air supply path 1 between the downstream end 1b and the electromagnetic valve SV3, and a differential pressure sensor is provided upstream and downstream of the electromagnetic valve SV3. Two ports 6 (pressure sensor, detection means) are connected to each other.
The pressure sensor 5 and the differential pressure sensor 6 determine the presence or absence of leakage of the bag-like container 100 based on the detection information from these sensors 5 and 6, and display units 7 and 8 (determination means, display for displaying the quality) Means) are connected to each other.

図示しないが、圧縮エア供給経路１において、レギュレータ３と電磁開閉弁ＳＶ１との間、電磁開閉弁ＳＶ３の下流側に、目視可能な圧力計を接続してもよい。   Although not shown, in the compressed air supply path 1, a visible pressure gauge may be connected between the regulator 3 and the electromagnetic on-off valve SV1 and on the downstream side of the electromagnetic on-off valve SV3.

上記圧縮エア供給経路１およびその付属構成は、エアリークテスタにおいて公知ものである。以下、本発明の特徴部について説明する。   The compressed air supply path 1 and its attached structure are known in an air leak tester. Hereafter, the characteristic part of this invention is demonstrated.

上記検査システムは、さらにノズル１０を有している。このノズル１０は、その軸芯に沿って流路１１を有しており、この流路１１は、ノズル１０の上端（基端）に固定されたアタッチメント１５の流路１６を介して上記圧縮エア供給経路１の下流端１ｂに接続されている。   The inspection system further includes a nozzle 10. The nozzle 10 has a flow path 11 along its axis, and the flow path 11 is compressed air via a flow path 16 of an attachment 15 fixed to the upper end (base end) of the nozzle 10. It is connected to the downstream end 1 b of the supply path 1.

上記ノズル１０は、上記アタッチメント１５に連結されたエアシリンダ１８（ノズル駆動手段）により昇降する（軸芯方向に移動する）ようになっている。   The nozzle 10 is moved up and down (moved in the axial direction) by an air cylinder 18 (nozzle driving means) connected to the attachment 15.

上記検査システムは袋状容器１００の製造ラインに組み込まれており、ノズル１０の真下のセット位置に袋状容器１００が間欠的に搬入、搬出されるようになっている。ノズル１０は袋状容器１００の搬入、搬出時には上方に後退して袋状容器１００との干渉を避け、袋状容器１００がセット位置にある状態で下降して、袋状容器１００の開口１０３に差し込まれる。   The inspection system is incorporated in the production line of the bag-like container 100, and the bag-like container 100 is intermittently carried in and out of the set position directly below the nozzle 10. The nozzle 10 retracts upward at the time of carrying in and out of the bag-like container 100 to avoid interference with the bag-like container 100, and descends while the bag-like container 100 is in the set position, and enters the opening 103 of the bag-like container 100. Plugged in.

上記検査システムはさらに、弾性材料からなる一対のシール部材２０を有している。一対のシール部材２０は、ノズル１０と直交する方向に長く延びており、下降位置にあるノズル１０を挟んで対峙している。
一対のシール部材２０はそれぞれベース２１に固定されており、このベース２１に連結されたエアシリンダ２５（ノズル部材駆動手段）により、互いに接近、離間するようになっている。 The inspection system further includes a pair of seal members 20 made of an elastic material. The pair of seal members 20 extend in a direction perpendicular to the nozzle 10 and face each other with the nozzle 10 in the lowered position interposed therebetween.
The pair of seal members 20 are respectively fixed to the base 21, and are moved closer to and away from each other by an air cylinder 25 (nozzle member driving means) connected to the base 21.

図３（Ａ）に示すように、ノズル１０の横断面形状は「猫の目」形状（扁平な形状）をなしており、一対のシール部材２０の対峙方向と直交する方向に細長く延びており、その厚みは軸芯から両端に向かって徐々に薄くなり、両端が尖っている。ノズル１０において、一対のシール部材２０に対向する幅広の面の一部が、受面１２として提供される。   As shown in FIG. 3A, the cross-sectional shape of the nozzle 10 has a “cat's eye” shape (flat shape), and is elongated in a direction perpendicular to the facing direction of the pair of seal members 20. The thickness gradually decreases from the axial center toward both ends, and both ends are pointed. In the nozzle 10, a part of the wide surface facing the pair of seal members 20 is provided as the receiving surface 12.

図１に戻って説明すると、上記検査システムはさらに、上記袋状容器１００の膨張を規制する規制部材３０と、コントローラ（図示しない）を有している。このコントローラは、上記電磁弁ＳＶ１，ＳＶ２，ＳＶ３、エアシリンダ１８，２５をシーケンス制御する。   Returning to FIG. 1, the inspection system further includes a regulating member 30 that regulates the expansion of the bag-like container 100 and a controller (not shown). This controller controls the solenoid valves SV1, SV2, SV3 and the air cylinders 18, 25 in sequence.

上記構成をなす検査システムの作用を説明する。
検査に先立ち、図１に示すように上記電磁開閉弁ＳＶ１，ＳＶ２を開くことにより、設定圧の圧縮エアをタンク４に供給しておく。ノズル１０、シール部材２０は後退位置にある。 The operation of the inspection system having the above configuration will be described.
Prior to the inspection, compressed air having a set pressure is supplied to the tank 4 by opening the electromagnetic on-off valves SV1 and SV2 as shown in FIG. The nozzle 10 and the seal member 20 are in the retracted position.

上述したように袋状容器１００がセット位置に搬入された時、ノズル１０がエアシリンダ１８の駆動により下降し、袋状容器１００の開口１０３に差し込まれる。なお、この袋状容器１００には図示しない吹き付け手段により予め圧縮エアを吹き付けて開口１０３を画成する一対の開口縁部１０３ａを互いに離し、開口１０３を開いておくのが好ましい。   As described above, when the bag-like container 100 is carried into the set position, the nozzle 10 is lowered by driving the air cylinder 18 and inserted into the opening 103 of the bag-like container 100. The bag-like container 100 is preferably preliminarily blown with compressed air by means of blowing means (not shown) to separate the pair of opening edge portions 103a that define the opening 103 from each other and open the opening 103.

次に、図４に示すように、エアシリンダ２５を作動させて一対のシール部材２０を互いに接近させる方向に移動させる。これにより、シール部材２０は袋状容器１００の一対の開口縁部１０３ａを挟圧する。図３（Ｂ）に最も良く示されているように、一対の開口縁部１０３ａはノズル１０に対峙する領域では、ノズル１０の一対の受面１２に押し付けられ、ノズル１０に対峙しない領域では、互いに直接当たる。その結果、袋状容器１００がシールされる。   Next, as shown in FIG. 4, the air cylinder 25 is operated to move the pair of seal members 20 in a direction in which the pair of seal members 20 approach each other. Thereby, the sealing member 20 clamps the pair of opening edge portions 103a of the bag-like container 100. As best shown in FIG. 3B, the pair of opening edge portions 103 a are pressed against the pair of receiving surfaces 12 of the nozzle 10 in the region facing the nozzle 10, and in the region not facing the nozzle 10, Hit each other directly. As a result, the bag-like container 100 is sealed.

上記ノズル１０は断面形状が扁平で両側縁が先細で尖っているので、一対の開口縁部１０３ａは、ノズル１０に対峙しない領域のノズル１０近傍部でも、シール部材２０に押されて良好に接合され、これにより、良好なシールを行うことができる。   Since the nozzle 10 has a flat cross-sectional shape and both side edges are tapered and pointed, the pair of opening edge portions 103a are pressed well by the seal member 20 even in the vicinity of the nozzle 10 in a region not facing the nozzle 10. Thus, good sealing can be performed.

上記シール動作が完了した後、大漏れ検査を実行する。すなわち、図４に示すように電磁開閉弁ＳＶ２を閉じ、それから電磁開閉弁ＳＶ３を開く。これにより、タンク４内の圧縮エアが圧縮エア供給経路１、アタッチメント１５の流路１６およびノズル１０の流路１１を経て、袋状容器１００に供給される。   After the sealing operation is completed, a large leak inspection is performed. That is, as shown in FIG. 4, the electromagnetic on-off valve SV2 is closed, and then the electromagnetic on-off valve SV3 is opened. Thereby, the compressed air in the tank 4 is supplied to the bag-like container 100 through the compressed air supply path 1, the flow path 16 of the attachment 15, and the flow path 11 of the nozzle 10.

袋状容器１００に大漏れが無い場合には、袋状容器１００に圧縮エアが満たされると、電磁開閉弁ＳＶ２より下流側の閉鎖系（タンク４および袋状容器１００を含む閉鎖系）で圧力が均衡する。すなわち設定圧よりも僅かに低い圧力で一定となる。しかし、袋状容器１００に大漏れがある場合には、袋状容器１００から圧縮エアが漏れ続けるので閉鎖系の圧力は一定にならず下げ続ける。この圧力変動を圧力センサ５で検出し、この検出圧力に基づき表示部７で良否判定（袋状容器１００の大漏れの有無の判定）を行い、表示する。   When there is no major leak in the bag-like container 100, when the bag-like container 100 is filled with compressed air, the pressure is reduced in the closed system (closed system including the tank 4 and the bag-like container 100) on the downstream side of the electromagnetic on-off valve SV2. Are balanced. That is, the pressure is constant at a pressure slightly lower than the set pressure. However, when there is a large leak in the bag-like container 100, the compressed air continues to leak from the bag-like container 100, so that the pressure in the closed system is not constant and continues to decrease. This pressure fluctuation is detected by the pressure sensor 5, and based on this detected pressure, the display unit 7 determines pass / fail (determining whether there is a large leak in the bag-like container 100) and displays it.

袋状容器１００に大漏れが無いと判断した場合には、微小漏れ検査を実行する。すなわち、図５に示すように電磁開閉弁ＳＶ２のみならず、電磁開閉弁ＳＶ３も閉じる。これにより、電磁開閉弁ＳＶ３より下流側の閉鎖系（袋状容器１００を含む閉鎖系）と、電磁開閉弁ＳＶ２、ＳＶ３間の閉鎖系（タンク４を含む閉鎖系）が構築される。このような２つの閉鎖系の遮断状態、すなわち袋状容器１００とタンク４との遮断状態において、袋状容器１００に微小漏れが無いと、タンク４と袋状容器１００の圧力が等しいため差圧センサ６の差圧は実質的にゼロである。袋状容器１００に微小漏れがあると、袋状容器１００から圧縮エアが微小量ずつ漏れ、袋状容器１００側の閉鎖系の圧力がタンク４側の閉鎖系の圧力より低くなり、差圧センサ６ではこの差圧を検出する。表示部８では、この差圧センサ６の差圧情報に基づいて、良否判定（袋状容器１００の微小漏れの有無の判定）を行い、表示する。   When it is determined that there is no large leak in the bag-like container 100, a minute leak inspection is executed. That is, as shown in FIG. 5, not only the electromagnetic on-off valve SV2, but also the electromagnetic on-off valve SV3 is closed. Thereby, a closed system (closed system including the bag-like container 100) on the downstream side of the electromagnetic open / close valve SV3 and a closed system (closed system including the tank 4) between the electromagnetic open / close valves SV2 and SV3 are constructed. In such a closed state of the two closed systems, that is, the closed state of the bag-like container 100 and the tank 4, if there is no minute leak in the bag-like container 100, the pressure in the tank 4 and the bag-like container 100 is equal. The differential pressure of the sensor 6 is substantially zero. When there is a minute leak in the bag-like container 100, a small amount of compressed air leaks from the bag-like container 100, and the pressure of the closed system on the bag-like container 100 side becomes lower than the pressure of the closed system on the tank 4 side. 6 detects this differential pressure. The display unit 8 performs pass / fail determination (determination of the presence or absence of minute leakage of the bag-like container 100) based on the differential pressure information of the differential pressure sensor 6, and displays the result.

漏れ検査が終了したら、ノズル１０およびシール部材２０を後退させ、検査済みの袋状容器１００をセット位置から搬出する。   When the leak inspection is completed, the nozzle 10 and the seal member 20 are retracted, and the inspected bag-like container 100 is carried out of the set position.

図６は、本発明に適用可能な他のシール部材２０Ａを示す。このシール部材２０Ａは、柔軟なゴム製（弾性材料製）の袋２２からなり、ベース２１に形成された通路２１ａから圧縮エアを吹き込むことにより、膨らみ、この圧縮エアの圧力で袋状容器１００の開口縁部１０３ａを挟む。この袋２０はノズル１０の形状になじみ易く、より一層シール性を高めることができる。   FIG. 6 shows another seal member 20A applicable to the present invention. The sealing member 20A is formed of a flexible rubber (elastic material) bag 22, and is inflated by blowing compressed air from a passage 21a formed in the base 21, and the pressure of the compressed air causes the bag-like container 100 to expand. The opening edge 103a is sandwiched. This bag 20 is easily adapted to the shape of the nozzle 10 and can further enhance the sealing performance.

図７は本発明の検査システムの第２実施形態を示すものである。図７には、本発明の特徴部であるノズルやシール部材は省略されている。この検査システムは、検出圧力の代わりに検出流量に基づき袋状容器の漏れの有無を検査するものである。公知の構成であるので簡単に説明すると、圧縮エア供給経路１に流量センサ５１（検出手段）、オリフィス５２、電磁開閉弁５３が設けられるとともに、オリフィス５２をバイパスする回路にも電磁開閉弁５４が設けられている。   FIG. 7 shows a second embodiment of the inspection system of the present invention. In FIG. 7, the nozzle and the seal member, which are features of the present invention, are omitted. This inspection system inspects the presence or absence of leakage of the bag-like container based on the detected flow rate instead of the detected pressure. Since it is a known configuration, a brief description will be given. The compressed air supply path 1 is provided with a flow sensor 51 (detection means), an orifice 52, and an electromagnetic opening / closing valve 53. Is provided.

前述したと同様に袋状容器にノズルを差し込み、シール動作を行った後で、弁５３，５４を開いて設定圧の圧縮エアを供給し、その後で、弁５４を閉じる。袋状容器に漏れがあると、オリフィス５２を通って圧縮エアが流れ続け、これを流量センサ５１で検出することができる。流量センサ５１の検出流量に基づき表示部５５で良否判定および表示を行う。   As described above, after inserting a nozzle into a bag-like container and performing a sealing operation, the valves 53 and 54 are opened to supply compressed air of a set pressure, and then the valve 54 is closed. If there is a leak in the bag-like container, the compressed air continues to flow through the orifice 52 and can be detected by the flow sensor 51. Based on the flow rate detected by the flow rate sensor 51, the display unit 55 performs pass / fail judgment and display.

本発明は、上記実施例に制約されず、種々の態様を採用することができる。例えば、ノズルの断面は円、楕円等であってもよい。
検査対象となる袋状容器は、口部材を装着しないタイプのものであってもよい。
検査システムは、必要に応じて大漏れ、微小漏れのいずれか一方だけを検出してもよい。
検査システムは別途演算手段を有し、この演算手段で検出情報に基づき漏れ判定を行ってもよい。この場合、この漏れ判定に基づき袋状容器をラインから排除するようにしてもよい。
上述した実施例では、ノズルを差し込む前に圧縮エアを吹き付けることにより一対の開口縁部を離したが、一対の吸引手段を用いて一対の開口縁部を吸引することにより離すようにしてもよい。この吸引はノズル差込後に解除する。 The present invention is not limited to the above-described embodiments, and various aspects can be adopted. For example, the cross section of the nozzle may be a circle, an ellipse, or the like.
The bag-like container to be inspected may be of a type that is not equipped with a mouth member.
The inspection system may detect only one of a large leak and a small leak as necessary.
The inspection system may have a separate calculation unit, and the calculation unit may perform leakage determination based on the detection information. In this case, you may make it exclude a bag-shaped container from a line based on this leak determination.
In the above-described embodiment, the pair of opening edges are separated by blowing compressed air before inserting the nozzle, but may be separated by sucking the pair of opening edges using a pair of suction means. . This suction is released after the nozzle is inserted.

本発明は、袋状容器の漏れ検査に適用できる。   The present invention can be applied to leak inspection of bag-like containers.

１ 圧縮エア供給経路（圧縮気体供給経路）
２ 圧縮エア源（圧縮気体源）
５ 圧力センサ（検出手段）
６ 差圧センサ（検出手段）
１０ ノズル
１８ エアシリンダ（ノズル駆動手段）
２０，２０Ａ シール部材
２２ 袋
２５ エアシリンダ（シール部材駆動手段）
５１ 流量センサ（検出手段）
１００ 袋状容器
１０２ 溶着部
１０３ 開口
１０３ａ 開口縁部 1 Compressed air supply path (Compressed gas supply path)
2 Compressed air source (compressed gas source)
5 Pressure sensor (detection means)
6 Differential pressure sensor (detection means)
10 Nozzle 18 Air cylinder (nozzle drive means)
20, 20A Seal member 22 Bag 25 Air cylinder (seal member drive means)
51 Flow sensor (detection means)
100 Bag-like Container 102 Welding Portion 103 Opening 103a Opening Edge

Claims (5)

袋状容器の漏れを検査する方法において、
上記袋状容器の開口にノズルを差し込み、
上記ノズルの差し込み状態で、上記袋状容器の開口縁部を一対のシール部材により挟圧することにより、上記ノズルと袋状容器との間をシールし、
上記シール状態で、上記ノズルに接続された圧縮気体供給経路から、上記ノズルを介して上記袋状容器に圧縮気体を供給し、この圧縮気体供給経路での圧力または流量を検出することにより、袋状容器の漏れの有無の情報を得ることを特徴とする袋状容器の漏れ検査方法。 In a method for inspecting a bag-like container for leakage,
Insert a nozzle into the opening of the bag-like container,
In the inserted state of the nozzle, by sealing the opening edge of the bag-like container with a pair of seal members, the gap between the nozzle and the bag-like container is sealed,
By supplying compressed gas to the bag-like container through the nozzle from the compressed gas supply path connected to the nozzle in the sealed state, and detecting the pressure or flow rate in the compressed gas supply path, the bag A method for inspecting leakage of a bag-like container, characterized in that information on the presence or absence of leakage of the container is obtained. ア．袋状容器の開口に差し込まれるノズルと、
イ．上記袋状容器の開口にノズルが差し込まれた状態で、袋状容器の開口縁部を挟圧することにより、ノズルと袋状容器との間をシールする一対のシール部材と、
ウ．上記ノズルに接続され、このノズルを介して袋状容器に圧縮気体を供給する圧縮気体供給経路と、
エ．上記圧縮気体供給経路に接続され、この圧縮気体供給経路での圧力または流量を検出して、袋状容器の漏れの有無の情報を得る検出手段と、
を備えたことを特徴とする袋状容器の漏れ検査システム。 A. A nozzle inserted into the opening of the bag-like container;
A. In a state where the nozzle is inserted into the opening of the bag-shaped container, a pair of sealing members that seal between the nozzle and the bag-shaped container by clamping the opening edge of the bag-shaped container,
C. A compressed gas supply path connected to the nozzle and supplying compressed gas to the bag-like container through the nozzle;
D. Detecting means connected to the compressed gas supply path, detecting pressure or flow rate in the compressed gas supply path, and obtaining information on the presence or absence of leakage of the bag-like container;
A leak inspection system for a bag-like container, comprising: さらに、上記袋状容器がセット位置へ搬入されたりセット位置から搬出される際には、上記ノズルを後退させ、袋状容器がセット位置にセットされた状態で、ノズルを袋状容器の開口に差し込むように移動させるノズル駆動手段と、
上記搬入搬出の際には上記一対のシール部材を互いに離間した位置に後退させ、袋状容器がセット位置にセットされた状態で一対のシール部材を互いに近づけて袋状容器の開口縁部を挟圧するシール部材駆動手段と、
を備えたことを特徴とする請求項２に記載の袋状容器の漏れ検査システム。 Further, when the bag-like container is carried into or out of the set position, the nozzle is retracted, and the nozzle is placed at the opening of the bag-like container with the bag-like container set at the set position. Nozzle drive means for moving to insert, and
At the time of carrying in and out, the pair of seal members are retracted to positions separated from each other, and the pair of seal members are brought close to each other with the bag-like container set at the set position so as to sandwich the opening edge of the bag-like container. Sealing member driving means for pressing,
The bag-like container leakage inspection system according to claim 2, further comprising: 上記ノズルの横断面形状が、上記一対のシール部材の対峙方向と直交する方向に細長い扁平形状をなし、両側縁に向かって先細をなしていることを特徴とする請求項２または３に記載の袋状容器の漏れ検査システム。   4. The nozzle according to claim 2, wherein a cross-sectional shape of the nozzle is an elongated flat shape in a direction orthogonal to a facing direction of the pair of seal members, and is tapered toward both side edges. 5. Bag-like container leak inspection system. 上記シール部材が柔軟な袋を有し、この袋に圧縮空気を供給して膨らませることにより、上記袋状容器の開口縁部を挟圧することを特徴とする請求項２〜４のいずれか１つに記載の袋状容器の漏れ検査システム。   The said sealing member has a flexible bag, Supplying compressed air to this bag, and inflating it, pinches the opening edge part of the said bag-shaped container, The any one of Claims 2-4 characterized by the above-mentioned. Leak inspection system for bag-like containers as described in 1.
JP2011130576A 2011-06-10 2011-06-10 Method and system for checking leakage of bag-like container Pending JP2013002812A (en)

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JP2015021778A (en) * 2013-07-17 2015-02-02 東洋製罐グループホールディングス株式会社 Inspection method and inspection device of inspection object
CN112093165A (en) * 2020-08-29 2020-12-18 安徽百盛源包装材料有限公司 Environment-friendly packaging bag production device
CN113665907A (en) * 2021-10-25 2021-11-19 南通市技美自动化设备有限公司 A numerical control food packaging equipment for missing package detects
CN114184339A (en) * 2022-02-16 2022-03-15 常州迪瑞尔医用新材料有限公司 Sealing performance detection equipment of biological storage and transportation system
CN115060437A (en) * 2022-08-16 2022-09-16 常州树杰塑业有限公司 Airtightness detection device for high-strength battery powder bag

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Publication number Priority date Publication date Assignee Title
JP2015021778A (en) * 2013-07-17 2015-02-02 東洋製罐グループホールディングス株式会社 Inspection method and inspection device of inspection object
CN112093165A (en) * 2020-08-29 2020-12-18 安徽百盛源包装材料有限公司 Environment-friendly packaging bag production device
CN113665907A (en) * 2021-10-25 2021-11-19 南通市技美自动化设备有限公司 A numerical control food packaging equipment for missing package detects
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CN115060437A (en) * 2022-08-16 2022-09-16 常州树杰塑业有限公司 Airtightness detection device for high-strength battery powder bag

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