JP2006137109A

JP2006137109A - Mold release device equipped with leakage checking mechanism for vessel in injection drawing blow molding machine

Info

Publication number: JP2006137109A
Application number: JP2004329347A
Authority: JP
Inventors: Naohide Matsuzaka; 直英松坂
Original assignee: Aoki Technical Laboratory Inc
Current assignee: Aoki Technical Laboratory Inc
Priority date: 2004-11-12
Filing date: 2004-11-12
Publication date: 2006-06-01

Abstract

<P>PROBLEM TO BE SOLVED: To constitute a mold release device so that the leakage inspection of a vessel can be carried out within a time for injection-molding a preform as one process in a molding process in injection drawing blow molding. <P>SOLUTION: The mold release device of an injection drawing blow molding machine is composed of the mold opening/closing mechanism 20 of a neck mold 4 set vertically movably in a support mechanism and the leakage checking mechanism 30 of a drawing blow vessel 5. The leakage checking mechanism 30 is composed of an ascending/descending cylinder 32 and an ascending/descending board 31 set in the upper part of the support mechanism and a leakage checking tube 35 suspended downward from the lower surface of the ascending/descending board 31. The tip part of the leakage checking tube 35 is formed to be an engagement part 35a engaged airtightly with the vessel opening of the drawing blow vessel 5. The tip from the engagement part 35a is formed to be a smaller diameter than the inside diameter of the vessel opening to make an air nozzle 35b packing inspection air in the drawing blow vessel 5 holding a neck part 5a in the neck mold 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、延伸ブロー成形したボトルや広口容器等の容器の漏洩原因となるピンホールや底部クラックの成形不良を、ボトルからの漏洩エアの有無を検出して判断することができる射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置に関するものである。 The present invention is an injection stretch blow molding that can detect the molding failure of pinholes and bottom cracks that cause leakage of containers such as stretch blow molded bottles and wide mouth containers by detecting the presence or absence of leaked air from the bottle. The present invention relates to a mold release device having a container leakage inspection mechanism in a machine.

ボトルの延伸ブロー成形の１つの方式として、射出成形したプリフォームを、ネック型（リップ型）により首部（リップ）を保持してブロー金型位置に移し、その位置で所望形状のボトルや広口容器などの延伸ブロー容器に成形したのち、容器の首部（リップ）をネック型（リップ型）から離型せずにそのまま保持して離型装置に移し、ネック型（リップ型）を開放して容器の離型を行うという一連の工程を、回転移送手段の採用により行っているものがある。 As one method of bottle stretch blow molding, an injection molded preform is moved to the blow mold position while holding the neck (lip) with a neck mold (lip mold), and a bottle or a wide-mouth container of a desired shape at that position. After forming into a stretch blow container, etc., hold the neck (lip) of the container as it is without releasing it from the neck type (lip type) and transfer it to the release device, and open the neck type (lip type) to open the container In some cases, a series of steps of releasing the mold is performed by adopting a rotary transfer means.

また延伸ブロー成形した壜状の容器における口部の気密性を、密閉した容器にエアを圧入して検査することが行われている。この場合の検査手段は、延伸ブロー成形した容器をエア圧入手段を備えた検査装置に移してセットし、密閉した口部からエアを圧入して内圧をかけ、そのエア気圧力が平衡したのち、一定時間経過後のエア圧力の差を測定し（差圧測定という）、その測定された値を基にして気密性の有無を判定するというものである。
特許第２８３２２６３号明細書特開昭６２−７３１３５号公報 In addition, the airtightness of the mouth portion of a stretched blow-molded bowl-shaped container is inspected by injecting air into the sealed container. In this case, the inspection means is set by moving the stretch blow molded container to an inspection apparatus equipped with air press-fitting means, press-fitting air from the sealed mouth and applying the internal pressure, The difference in air pressure after a lapse of a certain time is measured (referred to as differential pressure measurement), and the presence or absence of airtightness is determined based on the measured value.
Japanese Patent No. 2832263 JP-A-62-73135

上記従来の漏洩検査手段では、延伸ブロー成形機から取出した容器を漏洩検査装置にセットして検査を行うため、容器を直立状態で移送する搬送装置やセット装置が必要となる。また搬送中あるいはセット時に容器に瑕疵が生じて不良品となる無駄も生じ易く、容器の取出しから漏洩検査まで時間を要するのでで効率が悪いなどの課題を有する。 In the conventional leakage inspection means, the container taken out from the stretch blow molding machine is set in the leakage inspection apparatus and inspected, and therefore, a transport apparatus and a setting apparatus for transferring the container in an upright state are required. In addition, there is a problem that the container is likely to become defective due to wrinkles during transportation or setting, and it takes time from taking out the container to leak inspection, so that the efficiency is low.

この発明は、上記延伸ブロー容器の漏洩検査における課題を解決するために考えられたものであって、その目的は、射出延伸ブロー成形における成形工程の一工程として、容器の漏洩検査を成形ロッドごとにプリフォームの射出成形時間内にて行え、これまでの成形サイクル時間内で容器の漏洩検査を行うことができる新たな構成の射出延伸ブロー成形機における離型装置を提供することにある。 The present invention has been conceived to solve the above-mentioned problems in the leakage inspection of stretch blow containers, and its purpose is to perform container leakage inspection for each molded rod as a step in the injection stretch blow molding process. Another object of the present invention is to provide a mold release apparatus in an injection stretch blow molding machine having a new configuration that can be performed within the injection molding time of the preform and can inspect the leakage of the container within the molding cycle time thus far.

上記目的による本発明は、射出延伸ブロー成形機が備える上部基盤の上面の離型装置を、支持機構に昇降自在に設けたネック型の型開閉機構と延伸ブロー容器の漏洩検査機構とから構成し、その漏洩検査機構を、支持機構の上部に設置した昇降シリンダと、その昇降シリンダのピストンロッドに連結した昇降盤と、その昇降盤の下面に下向きに垂設した漏洩検査管とから構成し、その漏洩検査管の先端部を、延伸ブロー容器の容器開口と気密に嵌合する嵌合部に形成するとともに、該嵌合部から先端を容器開口の内径よりも小径に形成して、上部基盤の下面に設けた回転移送手段が備えるネック型に首部を保持した延伸ブロー容器内に、検査エアを充填するエアノズルに形成してなる、というものである。 According to the present invention, the mold release device for the upper surface of the upper base provided in the injection stretch blow molding machine is composed of a neck-type mold opening / closing mechanism provided on the support mechanism so as to be movable up and down and a leak inspection mechanism for the stretch blow container. The leakage inspection mechanism is composed of a lifting cylinder installed at the upper part of the support mechanism, a lifting plate connected to the piston rod of the lifting cylinder, and a leakage testing tube suspended downward on the lower surface of the lifting plate, The tip of the leak test tube is formed in a fitting part that fits airtightly with the container opening of the stretch blow container, and the tip from the fitting part is formed to have a smaller diameter than the inner diameter of the container opening. It is formed in the stretch blow container which hold | maintained the neck part to the neck type | mold with which the rotational transfer means provided in the lower surface of this is formed in the air nozzle filled with test | inspection air.

また本発明の上記昇降盤は、下面に検査エアのエア分配盤を有し、そのエア分配盤に複数本の上記漏洩検査管を、上記ネック型に保持された延伸ブロー容器の位置ごとに垂設してなるというものであり、また上記昇降盤は下面に検査エアのエア分配盤を有し、そのエア分配盤に垂設した上記漏洩検査管に、中空のピストンロッドを摺動自在に嵌め込んでシリンダを漏洩検査管周囲の盤面に止着した抜外し装置を備え、そのピストンロッドの延長部を、漏洩検査管からの延伸ブロー容器の抜外し管として、先端面を上記嵌合部の上に位置させてなる、というものである。 Further, the elevator board according to the present invention has an air distribution board for inspection air on the lower surface, and a plurality of the leakage inspection tubes are suspended on the air distribution board for each position of the stretch blow container held by the neck type. The lifting board has an air distribution board for inspection air on the lower surface, and a hollow piston rod is slidably fitted to the leak inspection pipe suspended from the air distribution board. And the cylinder is fixed to the board surface around the leak test tube, and the piston rod extension is used as a pull-out tube for the stretch blow container from the leak test tube, and the tip surface of the fitting portion is It is said to be positioned above.

また本発明の上記漏洩検査管は、上記支持機構に昇降自在に設けた上記ネック型の型開閉機構の下部作動盤を貫通して設けられ、その下部作動盤の下面両側に縦長に設けたくさび部材よりも短い抜外し管を、漏洩検査管に差し通して下部作動盤の下面に取付けてなる、というものである。 Further, the leak test tube of the present invention is provided through the lower operation panel of the neck type mold opening / closing mechanism provided in the support mechanism so as to be movable up and down, and the wedge provided vertically on both sides of the lower surface of the lower operation panel. An extraction tube shorter than the member is inserted into the leakage inspection tube and attached to the lower surface of the lower operation panel.

さらに本発明の上記ネック型の型開閉機構は、上記支持機構に昇降自在に設けて互いに連結した開閉作動盤と、その開閉作動盤の下面両側に縦長に設けたネック型開放用のくさび部材と、開閉作動盤の中央部上に設置した型開閉シリンダとからなり、その型開閉シリンダのピストンロッドを、開閉作動盤下側の上記昇降盤に連結して、型開閉シリンダ側が開閉作動盤と共に昇降移動するように構成してなる、というものである。 Further, the neck-type mold opening / closing mechanism of the present invention includes an opening / closing operation panel which is provided so as to be movable up and down on the support mechanism and connected to each other, and a neck-type opening wedge member provided vertically on both sides of the lower surface of the opening / closing operation panel. The mold opening and closing cylinder is installed on the center of the opening and closing operation panel, and the piston rod of the mold opening and closing cylinder is connected to the lifting plate below the opening and closing operation panel so that the mold opening and closing cylinder side moves up and down together with the opening and closing operation panel. It is configured to move.

また上記ネック型の型開閉機構は、上記支持機構に昇降自在に設けて互いに連結した上部作動盤及び下部作動盤と、その下部作動盤の下面両側に縦長に設けたネック型開放用のくさび部材と、上部作動盤の中央部上に設置した型開閉シリンダとからなり、その型開閉シリンダのピストンロッドを、上部作動盤下側の上記昇降盤に連結して、型開閉シリンダ側が上部作動盤と共に昇降移動するように構成してなる、というものである。 The neck-type mold opening / closing mechanism includes an upper operation panel and a lower operation panel which are provided so as to be movable up and down on the support mechanism and are connected to each other, and a neck-type opening wedge member provided vertically on both sides of the lower surface of the lower operation panel. And a mold opening / closing cylinder installed on the center of the upper operation panel, and the piston rod of the mold opening / closing cylinder is connected to the above-described lifting plate on the lower side of the upper operation panel so that the mold opening / closing cylinder side and the upper operation panel are It is configured to move up and down.

本発明では、離型装置を支持機構に昇降自在に設けたネック型の型開閉機構と延伸ブロー容器の漏洩検査機構とから構成したことにより、これまでと同様な射出延伸ブロー成形時間内にて容器の漏洩検査を行え、また容器の首部をネック型で保持したまま離型前に行えるので、漏洩検査を効率良く行うことができる。
また漏洩検査機構の構造も、漏洩検査管を垂設した昇降盤と、その昇降シリンダとを支持機構に設けて、昇降盤を型開閉機構のくさび部材を縦設した作動盤の間や下側に配置するだけで済むので、漏洩検査機構によつて離型装置がこれまでよりも著しく複雑となるようなこともない。さらに漏洩検査管をもって型開時における首部の片側のネック型への付着を防止でき、漏洩検査時における漏洩検査管の先端部と容器開口の嵌合も、型開前の漏洩検査管の上昇又は型開後の漏洩検査管周囲の抜外し管により解除されるので、漏洩検査後の離型も確実となる。 In the present invention, since the mold release device is configured by a neck-type mold opening / closing mechanism provided on the support mechanism so as to be movable up and down, and a leakage inspection mechanism of the stretch blow container, the injection stretch blow molding time is the same as before. Since the container can be inspected for leakage and before the mold release while the neck of the container is held in the neck shape, the leakage inspection can be performed efficiently.
In addition, the structure of the leakage inspection mechanism is also provided between the operating panel in which the lifting plate with the leakage inspection tube suspended and the lifting cylinder are provided in the support mechanism and the wedge member of the mold opening / closing mechanism is vertically installed. Therefore, the leakage inspection mechanism does not make the release device significantly more complicated than before. In addition, the leak test tube can prevent the neck from adhering to the neck mold on one side of the neck when the mold is opened. Since the release tube around the leak test tube after the mold is opened is released, the mold release after the leak test is also ensured.

図中１は公知の射出延伸ブロー成形機が備える上部基盤で、図示しない機台上方に周辺を支えて昇降自在に設けられている。２は基盤上面に立設した離型装置、３は上部基盤１の下面に回転自在に設けられている移送盤で、機台上に設置した図示しないブロー金型と型閉する複数のネック型４を有する。この複数のネック型４は、コイルばね４ｂにより弾圧されて閉じている一対の型板４ａに分割して取付けてあり、型板４ａの型閉面に出入するくさび部材により開閉する通常の構造からなる。５は延伸ブロー容器の１種であるボトルで、ネック型４により首部５ａを保持して、移送盤３の回転により隣設した延伸ブロー装置（図は省略）から離型装置２の直下に移送されて停止する。 In the figure, reference numeral 1 denotes an upper base provided in a known injection stretch blow molding machine, which is provided above a machine base (not shown) so as to be movable up and down while supporting the periphery. 2 is a mold release device erected on the upper surface of the base, 3 is a transfer board rotatably provided on the lower surface of the upper base 1, and a plurality of neck molds that are closed with a blow mold (not shown) installed on the machine base. 4. The plurality of neck molds 4 are divided and attached to a pair of mold plates 4a that are closed by being elastically pressed by a coil spring 4b, and have a normal structure that opens and closes by a wedge member that goes in and out of the mold closing surface of the mold plate 4a. Become. 5 is a bottle which is a kind of stretch blow container, which holds the neck portion 5a by the neck mold 4 and is transported directly from the stretch blow apparatus (not shown) adjacent to the mold release apparatus 2 by the rotation of the transfer board 3. To be stopped.

上記離型装置２は、上部基盤１の穴部周囲に設置した長方形の座盤２１と、その両側に前後一対ずつ立設した４本の支柱２２，２２と、その支柱２２，２２の頂部にわたり横架して固設した固定盤２３とからなる支持機構に、ネック型４の型開閉機構２０とボトル５の漏洩検査機構３０とを昇降自在に組み込んだ構成からなる。 The release device 2 includes a rectangular seat 21 installed around the hole of the upper base 1, four support columns 22, 22 erected on both sides of the support frame 22, and the top of the support columns 22, 22. The support mechanism includes a fixed platen 23 that is installed horizontally and has a configuration in which a mold opening / closing mechanism 20 of the neck mold 4 and a leakage inspection mechanism 30 of the bottle 5 are assembled so as to be movable up and down.

上記型開閉機構２０は、支柱２２，２２に挿通支持して、両側をタイロッド２４，２４により一体に連結したネック型開放用の上部作動盤２５及び下部作動盤２６と、その下部作動盤２６の下面両側に縦長に設けたネック型開放用の先端が三角形のくさび部材２７，２７と、上部作動盤２５の中央部上に設置したネック型４の型開閉シリンダ２８とからなり、その型開閉シリンダ２８のピストンロッド２８ａを、後記する漏洩検査機構３０の昇降盤３１に連結して、型開閉シリンダ側が上部作動盤２５と共に昇降移動するようにしてある。 The mold opening / closing mechanism 20 is inserted into and supported by the support columns 22 and 22, and the upper operation panel 25 and the lower operation panel 26 for opening the neck mold in which both sides are integrally connected by the tie rods 24 and 24, and the lower operation panel 26. The neck type opening tip provided vertically on both sides of the lower surface comprises triangular wedge members 27, 27 and a neck type 4 type opening / closing cylinder 28 installed on the center of the upper operation panel 25, and the type opening / closing cylinder. 28 piston rods 28a are connected to an elevator board 31 of a leakage inspection mechanism 30 to be described later, and the mold opening / closing cylinder side moves up and down together with the upper operation board 25.

上記漏洩検査機構３０は、上記タイロッド２４，２４と支柱２２，２２とに上下動自在に挿通して、上下部の作動盤２５，２６の間に設けた昇降盤３１と、上記固定盤２３の対称位置に設置して、ピストンロッド３２ａを上部作動盤２５に挿通し、昇降盤３１の上面両側の昇降ロッド３３，３３に連結した昇降シリンダ３２，３２と、昇降盤３１の下面に取り付けた内部にエア通路３４ａを有するエア分配盤３４と、そのエア分配盤３４に下部作動盤２６を通してボトル位置ごとに下向きに設けた複数本の漏洩検査管３５，３５とからなる。 The leakage inspection mechanism 30 is inserted into the tie rods 24 and 24 and the support columns 22 and 22 so as to freely move up and down, and an elevating plate 31 provided between the upper and lower operation plates 25 and 26, and the fixed plate 23. Installed at symmetrical positions, the piston rod 32a is inserted into the upper operation panel 25, and the lifting cylinders 32, 32 connected to the lifting rods 33, 33 on both sides of the upper surface of the lifting board 31, and the interior attached to the lower surface of the lifting board 31. And an air distribution board 34 having an air passage 34a, and a plurality of leakage inspection tubes 35, 35 provided on the air distribution board 34 downward through the lower operation panel 26 for each bottle position.

上記漏洩検査管３５の先端部は、ボトル口部の内径よりも若干大径で該口部を気密に密閉する嵌合部３５ａに形成してあり、その嵌合部２８ａから先端をボトル口内径よりも小径に縮径形成してエアノズル３５ｂとなした長尺の管体からなる。この漏洩検査管３５，３５には、図示しないコンプレッサからエア分配盤３４に圧送された圧縮エアによる検査エアがエア通路３４ａを経て分配され、その検査エアが嵌合部３５ａにより口部が密閉された各ボトル５，５に、エアノズル２８ｂから噴出して充填できるようにしてある。 The tip of the leak test tube 35 has a diameter slightly larger than the inner diameter of the bottle mouth, and is formed in a fitting portion 35a that hermetically seals the mouth. It is made of a long tube body that is formed to have a smaller diameter than the air nozzle 35b. The leakage inspection pipes 35 and 35 are supplied with inspection air by compressed air pressure-fed from an unillustrated compressor to the air distribution board 34 through an air passage 34a, and the mouth of the inspection air is sealed by a fitting portion 35a. The bottles 5 and 5 can be filled by being ejected from the air nozzle 28b.

このような構成の離型装置２では、図１に示すように、複数本のボトル５，５がネック型４，４により首部５ａを保持されて各漏洩検査管３５，３５の直下に停止すると、先ず昇降シリンダ３２，３２が油圧により伸長動作する。この際、上部作動盤２５と昇降盤３１は型開閉シリンダ２８とピストンロッド２８ａにより連結され、またピストンロッド２８ａが伸長しないように油圧を掛けてあることから、図２に示すように、ピストンロッド３２ａ，３２ａが、昇降ロッド３３，３３を押下げて、昇降盤３１を上下部の作動盤２５，２６と共に、漏洩検査管３５の嵌合部３５ａがボトル開口に嵌り込んで密閉する下限位置まで下降する。これによりエアノズル３５ｂがネック型４を通してボトル５内に挿入し、またくさび部材２７の先端もネック型４の座板４ａの上部間に入り込む。 In the mold release device 2 having such a configuration, as shown in FIG. 1, when a plurality of bottles 5 and 5 hold the neck portion 5 a by the neck molds 4 and 4 and stop immediately below the leak test tubes 35 and 35. First, the elevating cylinders 32 and 32 are extended by hydraulic pressure. At this time, the upper operation panel 25 and the lifting / lowering board 31 are connected to each other by a mold opening / closing cylinder 28 and a piston rod 28a, and hydraulic pressure is applied so that the piston rod 28a does not extend. Therefore, as shown in FIG. 32a, 32a pushes the elevating rods 33, 33 down to the lower limit position where the elevating plate 31 is fitted together with the upper and lower operation plates 25, 26 and the fitting portion 35a of the leak test tube 35 is fitted into the bottle opening and sealed. Descend. As a result, the air nozzle 35 b is inserted into the bottle 5 through the neck mold 4, and the tip of the wedge member 27 also enters between the upper portions of the seat plate 4 a of the neck mold 4.

昇降シリンダ３２，３２が下限位置で停止してボトル開口が漏洩検査管３５により密閉されると、図示しないコンプレッサから気密検査装置を備えたエア回路を経てエア分配盤３４に検査エアが圧送され、検査エアはエアノズル３５ｂからボトル内に噴出して充填される。そして後記する漏洩検査が済むと、ボトル首部内からエアノズル３５ｂが抜け出さない程度に昇降シリンダ３２，３２が縮小作動して、ネック型５に保持されているボトル５から嵌合部３５ａを抜外して密閉を解除する。 When the elevating cylinders 32 and 32 are stopped at the lower limit position and the bottle opening is sealed by the leakage inspection tube 35, the inspection air is pumped from the compressor (not shown) to the air distribution board 34 through the air circuit equipped with an airtight inspection device. Inspection air is ejected from the air nozzle 35b into the bottle and filled. After the leakage inspection described later, the elevating cylinders 32 and 32 are reduced so that the air nozzle 35b does not come out from the bottle neck, and the fitting portion 35a is removed from the bottle 5 held by the neck mold 5. Release the seal.

この密閉解除後に、上記型開閉シリンダ３２が油圧により縮小動作する。この場合、ピストンロッド３２ａを連結した昇降盤３１が、昇降シリンダ３１のピストンロッド３１ａ，３１ａに支えられて、密閉解除位置に固定されているので、ピストンロッド３２ａの縮小により型開閉シリンダ３２を設置した上部作動盤２５が、さび部材２７，２７を備えた下部作動盤２６と共に下限位置まで下方移動する。 After the sealing is released, the mold opening / closing cylinder 32 is contracted by hydraulic pressure. In this case, the elevator 31 connected with the piston rod 32a is supported by the piston rods 31a, 31a of the elevator cylinder 31 and fixed at the sealing release position. Therefore, the mold opening / closing cylinder 32 is installed by reducing the piston rod 32a. The upper operation panel 25 moves downward to the lower limit position together with the lower operation panel 26 including the rust members 27 and 27.

この下方移動によりくさび部材２７，２７が、図３に示すように、ばね圧で閉じているネック型４の一対の型板４ａの間に上から深く割り込んで、その型板４ａと共にネック型４を押し開く。このネック型４の横方向への型開によりボトル５の首部５ａの保持が解除されて、ボトル５，５は型開と同時に一斉に離型して落下する。この際、ノズル３５ｂは首部内に残されているので、首部５ａがネック型４の片側に付着して一緒に横移動するのを阻止する邪魔棒となり、離型が確実に行われるようになる。 As shown in FIG. 3, the wedge members 27, 27 are deeply cut into the gap between the pair of template plates 4 a of the neck mold 4 closed by the spring pressure as shown in FIG. 3, and the neck mold 4 together with the template 4 a. Press to open. When the neck mold 4 is opened in the lateral direction, the holding of the neck portion 5a of the bottle 5 is released, and the bottles 5 and 5 are simultaneously released from the mold and dropped. At this time, since the nozzle 35b is left in the neck portion, the neck portion 5a becomes a baffle bar that prevents the neck portion 5a from adhering to one side of the neck mold 4 and laterally moving together, so that the mold release is performed reliably. .

ボトル５，５の離型が済むと、型開閉シリンダ３２が伸長動作して、上部作動盤２５と下部作動盤２６とを元の上方位置まで引き上げ、くざび部材２７，２７を型板４ａから抜き出す。これに伴い型板４ａがばね圧により閉じてネック型４の型閉となる。型開閉シリンダ２８が上限位置で停止すると、昇降シリンダ３２が縮小作動して昇降盤３１を上部作動盤２５及び下部作動盤２６と共に元の上限位置まで上昇する。これにより漏洩検査管３５，３５とくさび２７とが図１に示す上記移送盤３よりも上方の元の位置まで戻る。この後に、移送盤３の回転による新たなボトルの離型装置２への移送が行われる。 When the bottles 5 and 5 are released, the mold opening / closing cylinder 32 extends to raise the upper operation panel 25 and the lower operation panel 26 to their original upper positions, and the wedge members 27 and 27 are removed from the mold plate 4a. Extract. Along with this, the template 4a is closed by the spring pressure, and the neck die 4 is closed. When the mold opening / closing cylinder 28 stops at the upper limit position, the lifting / lowering cylinder 32 is reduced to raise the lifting / lowering board 31 to the original upper limit position together with the upper operation board 25 and the lower operation board 26. As a result, the leakage inspection tubes 35 and 35 and the wedge 27 return to their original positions above the transfer board 3 shown in FIG. Thereafter, a new bottle is transferred to the mold release device 2 by the rotation of the transfer board 3.

この離型装置２におけるボトル５の漏洩検査は、ボトル５の離型前に行われる。嵌合部３５ａによりボトル開口を気密に密閉したのち、漏洩検査管３５の先端のエアノズル３５ｂから検査エア（例えば０．０１〜０．０２Ｍｐａ）をボトル５に充填して、ボトル内のエア圧力を平衡させたのち、一定時間経過後のエア圧力の差を気密検査装置に設けた判定部により測定して差圧の有無を判定する。この判定に要する時間はプリフォームの射出成形時間（例えば６秒）内で充分に済む。 The leakage inspection of the bottle 5 in the mold release device 2 is performed before the bottle 5 is released. After the bottle opening is hermetically sealed by the fitting portion 35a, the bottle 5 is filled with inspection air (for example, 0.01 to 0.02 Mpa) from the air nozzle 35b at the tip of the leakage inspection tube 35, and the air pressure in the bottle is reduced. After equilibration, the presence or absence of the differential pressure is determined by measuring the difference in air pressure after a lapse of a certain time by a determination unit provided in the airtightness inspection device. The time required for this determination is sufficient within the injection molding time (for example, 6 seconds) of the preform.

エア漏れがない場合には、平衡したエア圧力と一定時間経過後のエア圧力の差は実質ゼロとなるので、この場合のボトル５は良品と判定される。一方、差圧が生じるような場合は、ボトル５の何処かにクラックやピンホールがあり、そこから検査エアの漏洩が生じていることになるので、この場合は差圧の大小にかかわらず成形不良のボトルとして判定される。また漏洩個所は漏洩エアの圧力により押し開かれるので、その程度には差はあるが後に目視することもできる。 If there is no air leakage, the difference between the balanced air pressure and the air pressure after a lapse of a certain time is substantially zero, so that the bottle 5 in this case is determined as a non-defective product. On the other hand, if differential pressure occurs, there is a crack or pinhole somewhere in the bottle 5 and inspection air leaks from it, so in this case, molding is done regardless of the magnitude of the differential pressure. It is determined as a defective bottle. Further, since the leaked portion is pushed open by the pressure of the leaked air, there is a difference in the degree, but it can be visually observed later.

同時成形されたボトル５，５のうち、１本でもエア漏れによる成形不良と判定されたボトルがあると、その同時成形された全部が不良成形として一括分別される。この分別手段としては、図４に示すように、選別シュート４０を縦シュート４１とその側部に設けた開口に斜めに接続した分岐シュート４２とから構成し、その開口に縦シュート４１を遮断して不良ボトル５′を分岐シュート４２に導く開閉板４３を、扇形に揺動自在に備えた通常構造のシュートでよい。 If at least one bottle is determined to be defective due to air leakage among the simultaneously formed bottles 5 and 5, all the simultaneously formed bottles are collectively classified as defective molding. As shown in FIG. 4, the sorting chute 40 includes a vertical chute 41 and a branch chute 42 obliquely connected to an opening provided on the side thereof, and the vertical chute 41 is blocked at the opening. Thus, a chute having a normal structure may be used in which the open / close plate 43 that guides the defective bottle 5 ′ to the branch chute 42 is swingable in a fan shape.

また開閉板４３の揺動は、通常に採用されているロータリーソレノイド（図は省略）により軸部を回動して行えるようにすればよく、不良ボトル５′の判定と同時に出力される電気信号により、ロータリーソレノイドを回動作動して開閉板４３により縦シュート４１を斜めに遮断し、その後の離型により落下してくる全てのボトルを不良ボトル５′，５′として分岐シュート４２に導いて分別する。また一括して不良ボトル５′と判定されたボトルは、分別後の人為的な選別作業により不良品を見付けて排除する。 Further, the swinging of the opening / closing plate 43 may be performed by rotating the shaft portion with a normally employed rotary solenoid (not shown), and an electric signal output simultaneously with the determination of the defective bottle 5 '. By rotating the rotary solenoid, the vertical chute 41 is obliquely cut off by the opening / closing plate 43, and all the bottles falling by the subsequent release are led to the branch chute 42 as defective bottles 5 'and 5'. Sort. In addition, the bottles determined to be defective bottles 5 'at a time are found and rejected by an artificial sorting operation after sorting.

上記実施形態は、ネック型４の開放時にボトル５が片側のネック型に付着して離型不良を防止する手段として、漏洩検査管３５の嵌合部３５ａをボトル開口から抜き外したのち、エアノズル３５ｂをボトル首部内に残しているが、図５〜７に示す第２の実施形態は、漏洩検査管３５の周囲に抜外し管３６を鞘のように嵌め、その先端面によりボトル口面を押圧できるようにして、ボトル５を漏洩検査管３５の嵌合部３５ａから抜き外すことにより、離型時のネック型４への付着を防止したものである。 In the above embodiment, the bottle 5 is attached to the neck mold on one side when the neck mold 4 is opened, and the air nozzle is used after removing the fitting portion 35a of the leak test tube 35 from the bottle opening as a means for preventing the mold release failure. 35b is left in the bottle neck, but in the second embodiment shown in FIGS. 5 to 7, the pipe 36 is fitted like a sheath around the leak test pipe 35, and the bottle mouth surface is formed by the tip face thereof. By removing the bottle 5 from the fitting portion 35a of the leak test tube 35 so as to be able to be pressed, adhesion to the neck mold 4 at the time of mold release is prevented.

上記抜外し管３６は、内径が漏洩調査管３５の外径よりも摺動クリアランス分だけ大きく、後端にフランジ３６ａを一体形成した漏洩調査管３５より短い管体からなり、その先端部外周は先細りのテーパー面に形成してある。この抜外し管３６は漏洩検査管３５を差し通して、上記下部作動盤２６の下側面にフランジ３６ａにより取り付けてある。また抜外し管３６の長さは下部作動盤２６の両側の上記くさび部材２７よりも短く、くさび部材２７によるネック型４の型開後に、漏洩検査管３５の嵌合部３５ａと気密に嵌合したボトル口面を押下げる長さからなる。 The above-mentioned removal pipe 36 is formed of a tubular body whose inner diameter is larger than the outer diameter of the leakage investigation pipe 35 by a sliding clearance and shorter than the leakage investigation pipe 35 integrally formed with the flange 36a at the rear end. It is formed on a tapered taper surface. The removal pipe 36 is inserted through the leakage inspection pipe 35 and attached to the lower surface of the lower operation panel 26 by a flange 36a. Further, the length of the removal pipe 36 is shorter than the wedge members 27 on both sides of the lower operation panel 26, and after the neck mold 4 is opened by the wedge members 27, the fitting pipes 35a of the leak test pipe 35 are hermetically fitted. It consists of a length that pushes down the bottle mouth.

このような抜外し管３６を漏洩検査管３５の周囲に備える離型装置２では、上記実施形態と同様に、先ず上記昇降シリンダ３２，３２を伸長動作して、図６に示すように、昇降ロッド３３，３３を押下げると、上記するように昇降盤３１が、上下作動盤２５，２６と共に漏洩調査管３５の嵌合部３５ａがボトル開口を気密に密閉する下限位置まで下降する。これによりエアノズル３５ｂをネック型４を通してボトル５内に挿入する。 In the mold release device 2 provided with such a removal pipe 36 around the leakage inspection pipe 35, the lifting cylinders 32, 32 are first extended as shown in FIG. When the rods 33 and 33 are pushed down, as described above, the elevator 31 is lowered to the lower limit position where the fitting portion 35a of the leakage investigation tube 35 hermetically seals the bottle opening together with the upper and lower operation plates 25 and 26. As a result, the air nozzle 35 b is inserted into the bottle 5 through the neck mold 4.

上記漏洩検査管３５からの検査エアによるボトル５の漏洩検査が済むと、上記型開閉シリンダ２８が縮小動作して、ピストンロッド２８ａにより開閉シリンダ２８を設置した上部作動盤２５と、下側に上記さび部材２７，２７を備えた下部作動盤２６とを下限位置まで下方移動する。これによりくさび部材２７，２７と抜外し管３６も下方移動して、図７に示すように、先ずくさび部材２７，２７がネック型４の一対の型板４ａの間に上から深く割り込んで、その型板４ａと共にネック型４を押し開く。 When the inspection of leakage of the bottle 5 by the inspection air from the leakage inspection tube 35 is completed, the mold opening / closing cylinder 28 is contracted, and the upper operation panel 25 in which the opening / closing cylinder 28 is installed by the piston rod 28a and the above-described operation panel 25 on the lower side. The lower operation panel 26 provided with the rust members 27, 27 is moved downward to the lower limit position. As a result, the wedge members 27 and 27 and the removal pipe 36 are also moved downward. First, as shown in FIG. 7, the wedge members 27 and 27 are deeply inserted between the pair of template plates 4a of the neck mold 4 from above. The neck mold 4 is pushed open together with the template 4a.

このネック型４の型開によりボトル５の首部５ａの保持が解除されるが、首部５ａは漏洩検査管３５の先端部に嵌合保持されているのでボトル５は落下せず、その位置に吊り持たれた状態にある。これにより型開に際するネック型４の片側への付着が阻止される。引き続いてくさび部材２７よりも短い抜外し管３６がボトル口面に達し、先端面によりボトル首部を強制的に押し下ろす。これにボトル首部が嵌合部３５ａから抜け出してボトル５，５が漏洩検査管３５から抜け落ちてゆく。 Opening of the neck mold 4 releases the holding of the neck portion 5a of the bottle 5, but the neck portion 5a is fitted and held at the tip of the leak test tube 35, so the bottle 5 does not fall and is suspended at that position. It is in a held state. This prevents the neck mold 4 from adhering to one side when the mold is opened. Subsequently, the removal tube 36 shorter than the wedge member 27 reaches the bottle mouth surface, and the bottle neck is forcibly pushed down by the tip surface. As a result, the neck of the bottle comes out of the fitting portion 35a, and the bottles 5 and 5 fall out of the leak test tube 35.

ボトル５，５の離型が済んだのち、型開閉シリンダ２８を伸長動作すると、上部作動盤２５と下部作動盤２６とが上限位置まで引き上げられ、くざび部材２７，２７が型板４ａから抜き出る共に抜外し管３６が漏洩検査管３５の周側面を摺動して元の上方位置に戻る。次に昇降シリンダ３２を縮小作動すると、昇降盤３１が漏洩検査管３５，３５と共にエアノズル３５ｂが上記移送盤３よりも上方に位置する元の上限位置まで上昇し、次の成形品の取出に備える。 When the mold opening / closing cylinder 28 is extended after the bottles 5 and 5 are released, the upper operation panel 25 and the lower operation panel 26 are pulled up to the upper limit position, and the wedge members 27 and 27 are removed from the template 4a. At the same time, the removal pipe 36 slides on the peripheral side surface of the leakage inspection pipe 35 and returns to the original upper position. Next, when the elevating cylinder 32 is contracted, the elevating plate 31 moves up to the original upper limit position where the air nozzle 35b is located above the transfer plate 3 together with the leak test tubes 35, 35, and prepares for the removal of the next molded product. .

図８に示す第３の実施形態は、上記昇降盤３１の下側のエア分配盤３４に、上記抜外し管３６を漏洩検査管３５と共に取付け、抜外し管３６をエア又は油圧作動のバルブ装置３７により上下作動する構成からなる。 In the third embodiment shown in FIG. 8, the removal pipe 36 is attached to the air distribution board 34 on the lower side of the elevator 31 together with the leakage inspection pipe 35, and the removal pipe 36 is an air or hydraulically operated valve device. 37 is configured to move up and down.

この実施形態の離型装置２の型開閉機構２０は、上記下部作動盤２６を備えず、くさび部材２７，２７は、上部作動盤２５に相当する開閉作動盤２５′に取付けてある。また洩検査機構３０の昇降盤３１は支柱２２，２２とくさび部材２７，２７とに挿通してあり、その昇降盤３１の下側の上記分配盤３４に、上記抜外し管３６のバルブ装置３７が設けてある。 The mold opening / closing mechanism 20 of the mold release device 2 of this embodiment does not include the lower operation panel 26, and the wedge members 27, 27 are attached to an opening / closing operation panel 25 ′ corresponding to the upper operation panel 25. The elevating plate 31 of the leakage inspection mechanism 30 is inserted into the support columns 22 and 22 and the wedge members 27 and 27, and the valve device 37 of the removal pipe 36 is connected to the distribution plate 34 below the elevating plate 31. Is provided.

上記バルブ装置３７は、エア分配盤３４に固着した両端開口のバルブシリンダ３８と、そのバルブシリンダ３８に貫挿して両端をシリンダ開口に支持した中空のピストンロッドの周囲に一体形成したシリンダ内のピストン３９とからなる。上記抜外し管３６はピストンロッドの延長部をもって形成され、そのピストンロッドをエア分配盤３４に固定した上記漏洩検査管３５に摺動自在に挿通して、先端面が上記嵌合部３５ａの上に達するところまで長く設けてある。 The valve device 37 includes a piston in a cylinder integrally formed around a valve cylinder 38 that is open at both ends fixed to the air distribution board 34 and a hollow piston rod that is inserted through the valve cylinder 38 and supported at both ends by the cylinder opening. 39. The removal pipe 36 is formed with an extension part of a piston rod, and the piston rod is slidably inserted into the leakage inspection pipe 35 fixed to the air distribution board 34, and the tip surface is above the fitting part 35a. It is provided long until it reaches

この離型装置２では、先ず上記昇降シリンダ３２，３２を伸長動作して、右半図に示すように、作動ロッド３３，３３を押下げると、昇降盤３１が漏洩検査管３５と共にバルブ装置３７を下限位置まで降下する。この降下により上記嵌合部３５ａがボトル開口を気密に密閉し、またエアノズル３５ｂがボトル５内に入り込む。 In this mold release device 2, when the lifting cylinders 32, 32 are first extended and the operating rods 33, 33 are pushed down as shown in the right half view, the lifting plate 31 together with the leak test tube 35 is a valve device 37. To the lower limit position. Due to this lowering, the fitting portion 35 a hermetically seals the bottle opening, and the air nozzle 35 b enters the bottle 5.

上記実施形態と同様な経路により圧送された圧縮エアが、漏洩検査管３５からボトル５に充填され、その充填エアによる漏洩検査が済んだら、上記型開閉シリンダ２８を伸長動作して、ピストンロッド２８ａにより開閉作動盤２５′を降下すると、くさび部材２７，２７が開閉作動盤２５′と共に下方移動して、ネック型４の一対の型板４ａの間に上から深く割り込み、型板４ａをネック型４と共に押し開らいて型開する。 The compressed air pumped by the same path as in the above embodiment is filled into the bottle 5 from the leakage inspection tube 35. After the leakage inspection with the filled air is completed, the mold opening / closing cylinder 28 is extended to move the piston rod 28a. When the opening / closing operation panel 25 'is lowered by the above, the wedge members 27, 27 are moved downward together with the opening / closing operation panel 25', interrupting deeply from above between the pair of template plates 4a of the neck mold 4, and the template 4a is moved to the neck type. 4 is pushed open together and the mold is opened.

この状態では、上記第２の実施形態と同様にネック型４の型開しても、首部５ａが漏洩検査管３５の先端部とに嵌合したままで落下しないので、ネック型４の型開後にバルブ装置３７のシリンダ上室に油圧を供給してピストン３９により、ピストンロッドと一体の抜外し管３６を下方移動する。抜外し管３６は漏洩検査管３５を摺動して先端面によりボトル開口面を押圧する。これによりボトル５，５が抜け落ちてゆく。 In this state, even if the neck mold 4 is opened as in the second embodiment, the neck 5a remains fitted to the tip of the leak test tube 35 and does not fall. Later, hydraulic pressure is supplied to the cylinder upper chamber of the valve device 37, and the removal pipe 36 integrated with the piston rod is moved downward by the piston 39. The removal tube 36 slides on the leak test tube 35 and presses the bottle opening surface with the tip surface. Thereby, the bottles 5 and 5 fall out.

ボトル５，５の離型が済んだのち、バルブ装置３７のシリンダ下室にエア又は油圧を供給してピストン３９により、ピストンロッドと一体の抜外し管３６を上方移動して元の位置に戻し、型開閉シリンダ３２を縮小作動して開閉作動盤２５′を上限位置まで戻し、くざび部材２７，２７を型板４ａから抜き出す。しかるのち昇降シリンダ３２を縮小作動して、左半図に示す漏洩調査管３５，３５のエアノズル３５ｂが上記移送盤３よりも上方に位置する元の上限位置まで昇降し、次の成形品の取出に備える。 After the bottles 5 and 5 are released, air or hydraulic pressure is supplied to the cylinder lower chamber of the valve device 37, and the removal pipe 36 integrated with the piston rod is moved upward by the piston 39 to return to the original position. Then, the mold opening / closing cylinder 32 is contracted to return the opening / closing operation panel 25 'to the upper limit position, and the wedge members 27, 27 are extracted from the mold plate 4a. Thereafter, the lifting cylinder 32 is contracted and the air nozzle 35b of the leakage investigation tube 35, 35 shown in the left half figure is moved up and down to the original upper limit position located above the transfer board 3, and the next molded product is taken out. Prepare for.

上記実施形態の何れにおいても、ボトル５の首部５ａをネック型４で保持したまま射出延伸ブロー成形時間内にて漏洩検査が効率良く行え、漏洩検査に際する漏洩検査管３５とボトル開口との気密な嵌合も、型開前の漏洩検査管３５の上昇又は型開後の漏洩検査管周囲の抜外し管３６の降下により確実に解除して、ボトル５を漏洩検査管５から抜外すので、漏洩検査後のボトルの離型を支障なく行いうる。 In any of the above embodiments, the leakage inspection can be efficiently performed within the injection stretch blow molding time while the neck portion 5a of the bottle 5 is held by the neck mold 4, and the leakage inspection tube 35 and the bottle opening in the leakage inspection Since the airtight fitting is reliably released by the rise of the leak test tube 35 before the mold is opened or the drop tube 36 around the leak test tube after the mold is opened, the bottle 5 is removed from the leak test tube 5. It is possible to release the bottle after leakage inspection without any trouble.

なお、上記実施形態はボトル５を対象としたものであるが、広口容器でもリップ型により保持して漏洩検査を行い得るので、本発明は図示の実施形態にのみ限定されるものではない。 In addition, although the said embodiment is intended for the bottle 5, since it can hold | maintain with a lip | rip type even in a wide-mouthed container and a leak test | inspection can be performed, this invention is not limited only to embodiment shown in figure.

本発明に係る離型装置の縦断正面図である。It is a vertical front view of the mold release apparatus which concerns on this invention. 同上の延伸ブロー容器の漏洩検査時の縦断正面図である。It is a vertical front view at the time of the leak test | inspection of a stretch blow container same as the above. 同じく延伸ブロー容器の離型時の縦断正面図である。It is a longitudinal front view at the time of mold release of a stretch blow container similarly. 延伸ブロー容器の選別状態を示す離型装置の一部と選別シュートの縦断側面図である。It is a longitudinal section side view of a part of a mold release device which shows the selection state of a stretch blow container, and a selection chute. 本発明に係る第２の実施形態の離型装置の縦断正面図である。It is a vertical front view of the mold release apparatus of 2nd Embodiment which concerns on this invention. 同上の延伸ブロー容器の漏洩検査時の縦断正面図である。It is a vertical front view at the time of the leak test | inspection of a stretch blow container same as the above. 同じく延伸ブロー容器の離型時の縦断正面図である。It is a longitudinal front view at the time of mold release of a stretch blow container similarly. 本発明に係る第３の実施形態の離型装置の検査作動と検査作動時の状態とを示す縦断正面図である。It is a vertical front view which shows the test | inspection operation | movement of the mold release apparatus of 3rd Embodiment which concerns on this invention, and the state at the time of test | inspection operation.

符号の説明Explanation of symbols

１上部基盤
２離型装置
３移送盤
４ネック型
５ボトル
５ａ首部
２０ネック型の型開閉機構
２２支柱
２３固定盤
２５上部作動盤
２５′ 開閉作動盤
２６下部作動盤
２７くさび部材
２８開閉シリンダ
３０漏洩検査機構
３１昇降盤
３２昇降シリンダ
３４エア分配盤
３５漏洩検査管
３５ａ嵌合部
３５ｂエアノズル
３６抜外し管
３７抜外し装置
３８ピストン
３９ピストンロッド DESCRIPTION OF SYMBOLS 1 Upper base | substrate 2 Mold release apparatus 3 Transfer board 4 Neck type 5 Bottle 5a Neck part 20 Neck type type | mold opening / closing mechanism 22 Support | pillar 23 Fixed board 25 Upper action | operation board 25 'Open / close action board 26 Lower action board 27 Wedge member 28 Opening / closing cylinder 30 Leakage Inspection mechanism 31 Elevating plate 32 Elevating cylinder 34 Air distribution plate 35 Leakage inspection tube 35a Fitting portion 35b Air nozzle 36 Removal tube 37 Removal device 38 Piston 39 Piston rod

Claims

射出延伸ブロー成形機が備える上部基盤の上面の離型装置を、支持機構に昇降自在に設けたネック型の型開閉機構と延伸ブロー容器の漏洩検査機構とから構成し、その漏洩検査機構を、支持機構の上部に設置した昇降シリンダと、その昇降シリンダのピストンロッドに連結した昇降盤と、その昇降盤の下面に下向きに垂設した漏洩検査管とから構成し、その漏洩検査管の先端部を、延伸ブロー容器の容器開口と気密に嵌合する嵌合部に形成するとともに、該嵌合部から先端を容器開口の内径よりも小径に形成して、上部基盤の下面に設けた回転移送手段が備えるネック型に首部を保持した延伸ブロー容器内に、検査エアを充填するエアノズルに形成してなることを特徴とする射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置。 The mold release device on the upper surface of the upper base provided in the injection stretch blow molding machine is composed of a neck-type mold opening / closing mechanism provided on the support mechanism so as to be movable up and down and a leakage inspection mechanism of the stretch blow container, and the leakage inspection mechanism is The elevating cylinder installed on the upper part of the support mechanism, the elevating plate connected to the piston rod of the elevating cylinder, and the leak test tube hanging downward on the lower surface of the elevating plate, the tip of the leak test tube Is formed in a fitting part that fits airtightly with the container opening of the stretch blow container, and the tip of the fitting part is formed to have a smaller diameter than the inner diameter of the container opening, and is provided on the lower surface of the upper base. A mold release device equipped with a container leakage inspection mechanism in an injection stretch blow molding machine, characterized in that it is formed as an air nozzle for filling inspection air in a stretch blow container having a neck held by a neck mold. .

上記漏洩検査管の先端のエアノズルは、上記ネック型の型開時の延伸ブロー容器内の邪魔棒を兼ねる長さからなることを特徴とする請求項１記載の射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置。 2. The leakage of a container in an injection stretch blow molding machine according to claim 1, wherein the air nozzle at the tip of the leak test tube has a length that also serves as a baffle rod in the stretch blow container when the neck mold is opened. Mold release device with inspection mechanism.

上記昇降盤は下面に検査エアのエア分配盤を有し、そのエア分配盤に複数本の上記漏洩検査管を、上記ネック型に保持された延伸ブロー容器の位置ごとに垂設してなることを特徴とする請求項１又は２記載の射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置。 The elevator board has an air distribution board for inspection air on the lower surface, and a plurality of the leakage inspection tubes are suspended on the air distribution board for each position of the stretch blow container held by the neck type. The mold release apparatus provided with the container leakage test | inspection mechanism in the injection stretch blow molding machine of Claim 1 or 2 characterized by these.

上記昇降盤は下面に検査エアのエア分配盤を有し、そのエア分配盤に垂設した上記漏洩検査管に、中空のピストンロッドを摺動自在に嵌め込んでシリンダを漏洩検査管周囲の盤面に止着した抜外し装置を備え、そのピストンロッドの延長部を、漏洩検査管からの延伸ブロー容器の抜外し管として、先端面を上記嵌合部の上に位置させてなることを特徴とする請求項１又は３に記載の射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置。 The lifting board has an air distribution board for inspection air on the lower surface, and a hollow piston rod is slidably fitted into the leakage inspection pipe suspended from the air distribution board so that the cylinder is placed around the leakage inspection pipe. And an extension device of the piston rod is used as an extraction tube for the stretch blow container from the leakage inspection tube, and the distal end surface is positioned on the fitting portion. The mold release apparatus provided with the leakage inspection mechanism of the container in the injection stretch blow molding machine of Claim 1 or 3 to do.

上記漏洩検査管は、上記支持機構に昇降自在に設けた上記ネック型の型開閉機構の下部作動盤を貫通して設けられ、その下部作動盤の下面両側に縦長に設けたくさび部材よりも短い抜外し管を、漏洩検査管に差し通して下部作動盤の下面に取付けてなることを特徴とする請求項１又は３に記載の射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置。 The leak test tube is provided through the lower operation panel of the neck-type mold opening / closing mechanism provided in the support mechanism so as to be movable up and down, and is shorter than a wedge member provided vertically on both sides of the lower surface of the lower operation panel. 4. A release mold having a leakage inspection mechanism for a container in an injection stretch blow molding machine according to claim 1, wherein the removal pipe is inserted into the leakage inspection pipe and attached to the lower surface of the lower operation panel. apparatus.

上記ネック型の型開閉機構は、上記支持機構に昇降自在に設けて互いに連結した開閉作動盤と、その開閉作動盤の下面両側に縦長に設けたネック型開放用のくさび部材と、開閉作動盤の中央部上に設置した型開閉シリンダとからなり、その型開閉シリンダのピストンロッドを、開閉作動盤下側の上記昇降盤に連結して、型開閉シリンダ側が開閉作動盤と共に昇降移動するように構成してなることを特徴とする請求項１又は４記載の射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置。 The neck-type mold opening / closing mechanism includes an opening / closing operation panel that can be moved up and down on the support mechanism and connected to each other, a neck-shaped opening wedge member provided vertically on both sides of the opening / closing operation panel, and an opening / closing operation panel The mold opening / closing cylinder is installed on the center of the opening / closing cylinder, and the piston rod of the mold opening / closing cylinder is connected to the lifting plate below the opening / closing operation panel so that the mold opening / closing cylinder side moves up and down together with the opening / closing operation panel. The mold release apparatus provided with the container leakage test | inspection mechanism in the injection stretch blow molding machine of Claim 1 or 4 characterized by the above-mentioned.

上記ネック型の型開閉機構は、上記支持機構に昇降自在に設けて互いに連結した上部作動盤及び下部作動盤と、その下部作動盤の下面両側に縦長に設けたネック型開放用のくさび部材と、上部作動盤の中央部上に設置した型開閉シリンダとからなり、その型開閉シリンダのピストンロッドを、上部作動盤下側の上記昇降盤に連結して、型開閉シリンダ側が上部作動盤と共に昇降移動するように構成してなることを特徴とする請求項１又は５記載の射出延伸ブロー成形機における容器の漏洩検査機構を備えた離型装置。 The neck-type mold opening / closing mechanism includes an upper operation panel and a lower operation panel which are provided so as to be movable up and down on the support mechanism and are connected to each other, and a neck-type opening wedge member provided vertically on both sides of the lower surface of the lower operation panel, The mold opening and closing cylinder is installed on the center of the upper operation panel. The piston rod of the mold opening and closing cylinder is connected to the lifting plate on the lower side of the upper operation panel, and the mold opening and closing cylinder side moves up and down together with the upper operation panel. 6. A mold release apparatus comprising a container leakage inspection mechanism in an injection stretch blow molding machine according to claim 1, wherein the apparatus is configured to move.