JP3676949B2

JP3676949B2 - Two-pack filling device

Info

Publication number: JP3676949B2
Application number: JP20238799A
Authority: JP
Inventors: 全紀菱田; 学下條; 智小川; 勲嶋田
Original assignee: Hitachi Zosen Corp
Current assignee: Hitachi Zosen Corp
Priority date: 1999-07-16
Filing date: 1999-07-16
Publication date: 2005-07-27
Anticipated expiration: 2019-07-16
Also published as: JP2001031013A

Description

【０００１】
【発明の属する技術分野】
本発明は、たとえば食油入りドレッシングなど２液が混合された液体を同時にまたは連続して供給する２液充填装置に関する。
【０００２】
【従来の技術】
従来、本発明者等が提案した２液充填装置は、特開平９−１１８３９４号公報に開示されており、２つの充填通路にそれぞれダイヤフラム弁を設けたものである。
【０００３】
【発明が解決しようとする課題】
しかし、上記従来構成では、２つのダイヤフラム弁をそれぞれ駆動する駆動装置を収容するバルブケースが両側部に張り出すことになり、全体が大きくなるため、たとえばロータリー式充填機の回転テーブルに周方向に取付ける場合、その配設ピッチが大きくなり、全体が大形化するという問題があった。
【０００４】
本発明は上記問題点を解決して、全体をコンパクト化できる２液充填装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記目的を達成するために請求項１記載の発明は、内筒に形成された第１充填通路に、軸心方向に出退自在に内嵌された第１充填筒と、この第１充填筒の先端部に設けられて前記第１充填通路を開閉自在な第１弁体と、前記第１充填筒と内筒の間に設けられて第１充填筒を出退させ第１弁体を開閉する第１弁作動手段と、前記内筒に軸心方向に出退自在に外嵌されて第２充填通路が形成された第２充填筒と、この第２充填筒または内筒の先端部に設けられて第２充填通路を開閉自在な第２弁体と、第２充填筒の周部に介在されて第２充填筒を出退させ第２弁体を開閉する第２弁作動手段とを具備したものである。
【０００６】
上記実施の形態によれば、軸心部に第１充填通路を形成するとともにその外周部に第２充填通路を形成し、弁作動装置をそれぞれ筒体の間に設けるように構成したので、全体をコンパクトに構成することができ、たとえばターンテーブル等に一定ピッチで配置する場合など、装置の大きさに制約されることもない。
【０００７】
また請求項２記載の発明は、上記構成における第１弁作動手段は、第１充填筒と内筒の一方に形成されたシリンダ室と、他方に形成されてこのシリンダ室にスライド自在に嵌合されたピストン部とを備えた第１流体圧シリンダ装置により構成されたものである。
【０００８】
上記構成によれば、第１充填筒と内筒の間にシリンダ室を形成して、内筒を昇降駆動するので、コンパクト化をより促進することができる。
【０００９】
さらに請求項３記載の発明は、上記構成において、第２弁作動手段は、第２充填筒とこの第２充填筒に軸心方向にスライド自在に外嵌された外筒の一方に形成されたシリンダ室と、他方に形成されてこのシリンダ室にスライド自在に嵌合されたピストン部とを備えた第２流体圧シリンダ装置により構成されたものである。
【００１０】
上記構成によれば、第２充填筒と外筒との間にシリンダ室を形成して、内筒を昇降駆動するので、コンパクト化をより促進することができる。
【００１１】
さらにまた請求項４記載の発明によれば、第２弁作動手段により第２充填筒を動作させて第２弁体を閉動させる時に、第２充填通路を拡張して第２液を吸引するように構成したものである。
【００１２】
上記構成によれば、第２弁体を閉動させる時に、第２充填通路を拡張して第２液を吸い上げることができ、液垂れを防止することができる。
【００１３】
【発明の実施の形態】
ここで、本発明に係る２液充填装置の実施の形態を図１〜図５に基づいて説明する。
まず図１，図２の基本構成図を参照して説明する。
第１液を供給する第１充填通路１が軸心部に形成された内筒３に、第１充填筒２が軸心方向に出退自在に内嵌されている。そして、この第１充填筒２には、第１充填通路１の出口流路１ａが形成されて下部の一側部が切り欠かれて開口されるとともに、その先端部に第１充填通路１の開口部を開閉自在な第１弁体（シャッター弁）４が設けられている。そして、前記第１充填筒２と内筒３の間に設けられて第１充填筒２を出退させ第１弁体を開閉する第１弁作動手段である第１エアシリンダ（第１流体圧シリンダ装置）５が設けられている。
【００１４】
前記内筒３には、第２液を供給する第２充填通路６の固定流路６ｂが形成されるとともに、内筒３とこの内筒３に軸心方向に出退自在に外嵌された第２充填筒７との間に第２充填通路６の出口流路６ａが形成されている。また内筒３の端部には、第２充填筒７に内嵌されて第２充填通路６を開閉自在な第２弁体８が全周にわたって膨出されている。さらに第２充填筒７の外周部には外筒（下部ハウジング）９が軸心方向にスライド自在に外嵌されており、第２充填筒７と外筒９の間に、第２充填筒７を出退させて第２充填通路６を開閉する第２弁作動手段である第２エアシリンダ（第２流体圧シリンダ装置）１０が設けられている。
【００１５】
前記第１エアシリンダ５は、内筒３の内周面周囲に形成された凹部とこの凹部に臨む第１充填筒２の外周面の間に形成されたシリンダ室で、第１充填筒２に全周にわたって突設された第１ピストン部１２がこの第１シリンダ室５に摺動自在に嵌合されている。そして、第１ピストン部１２上の第１開動室１１ａに作動空気が給排出される第１エア供給口１４が形成されるとともに、下の第１閉動室１１ｂに、第１ピストン部１２を介して第１充填筒２を上方（閉動方向）に付勢する第１付勢手段である第１ばね１３が介装されている。
【００１６】
前記第２充填通路６は、上部で内筒３に穿設された固定流路６ｂと、下部で内筒３と第２充填筒７との間に形成された出口流路６ｂと、固定流路６ａと出口流路６ｂの間で第２充填筒７の上昇により縮小され、下降により拡張される拡縮流路６ｃとで構成されている。
【００１７】
前記第２エアシリンダ１０は、第２充填筒７の上部で拡縮空間（流路）６ｃを形成する段部が第２ピストン部２２に構成され、内筒３と外筒９の間に第２ピストン部２２をスライド自在に収容する第２シリンダ室２１が形成されている。そして、第２ピストン部２２の上方に形成された第２閉動室２１ａには第２充填筒７を下方（閉動方向）に付勢する第２ばね２３が介装され、また下方に形成された第２開動室２１ｂには、作動空気が給排出される第２エア供給口２４が形成されている。
【００１８】
したがって、図１に示すように、作動空気が供給されない状態では、第１エアシリンダ５が第１ばね１３により上方の閉動方向に付勢されて、第１充填通路１が第１弁体４により閉止されるとともに、第２エアシリンダ１０が第２ばね２３により下方の閉動方向に付勢されて、第２充填通路６が第２弁体８により閉止される。
【００１９】
また図２（ａ）に示すように、第１エアシリンダ５の第１開動室１１ａに作動空気が供給されることにより、第１ピストン部１２を介して第１充填筒２が下方にスライドされ、第１弁体４が内筒３から下方に離脱することにより、第１充填通路１が開放されて第１液が供給される。
【００２０】
さらに図２（ｂ）に示すように、第２エアシリンダ１０の第２開動室２１ｂに作動空気が供給されることにより、第２ピストン部２２を介して第２充填筒７が上方にスライドされ、第２弁体８から第２充填筒７が上方に離脱することにより、第２充填通路６が開放されて第２液が供給される。
【００２１】
さらにまた図２（ｃ）に示すように、第１エアシリンダ５の第１開動室１１ａと第２エアシリンダ１０の第２開動室２１ｂにそれぞれ作動空気が供給されることにより、第１充填筒２が下方に、第２充填筒７が上方にそれぞれスライドされ、第１弁体４により閉止されていた第１充填通路１が開放されて第１液が供給され、同時に第２弁体８により閉止されていた第２充填通路６が開放されて第２液が供給される。
【００２２】
また第２充填筒７が上方にスライドされた第２充填通路６の開放時には、拡縮流路６ｃは収縮状態にある。したがって、第２エアシリンダ１０の第２開動室２１ｂから作動空気が排出されて第２充填筒７が下方にスライドされると、拡縮流路６ｃが拡張されて出口流路６ａ内の第２液を吸い上げてサックバックを行うことができ、液垂れを防止することができる。
【００２３】
図３は上記２液充填装置の詳細図（実施例）であり、第１充填筒２と内筒３との摺動部、内筒３と第２充填筒７との摺動部および第２充填筒７と外筒９の摺動部には、それぞれＯリングなどのシール部材が介装されている。また、上部には、第１充填筒２の上端部をスライド自在に案内し、かつ内筒３を支持する上部ハウジング３１が設けられており、この上部ハウジング３１に第１充填通路１と第２充填通路６が形成されている。３３は上部ハウジング３１とジョイント３２とを連結する上部連結具、３４は上部ハウジング３１と内筒３とを連結する中間連結具、３５は内筒３と外筒９を連結する下部連結具である。さらに、第１エア供給口１４と第２エア供給口２４にはそれぞれエアホースとの接続具１５，２５が取付けられている。
【００２４】
図４および図５は２液充填装置の全体図で、ジョイント３２に設けられて第１充填通路１に連通される第１ジョイントポート３２ａに第１充填チューブ４１が接続されるとともに、第２充填通路６に連通される第２ジョイントポート３２ｂに第２充填チューブ５１が接続されており、これら第１，第２充填チューブ４１，５１に流量制御用の第１，第２ピンチバルブ４２，５２がそれぞれ設けられている。
【００２５】
第１ピンチバルブ４２は，下流部に配置された大流量バルブ４３と上流部に配置された小流量バルブ４４からなり、可撓性材質の第１充填チューブ４１の対向位置に一対の加圧ブロック４３ａ，４３ｂと４４ａ，４４ｂを配置し、開閉駆動装置（エアシリンダなど）４３ｃ，４４ｃにより一方の加圧ブロック４３ｂ，４４ｂを他方に押し付けて第１充填チューブ４１を挟み付け流量を調整することができる。
【００２６】
また第２ピンチバルブ５２は，下流部に配置された大流量バルブ５３と上流部に配置された小流量バルブ５４からなり、可撓性材質の第１充填チューブ５２の対向位置に一対の加圧ブロック５３ａ，５３ｂと５４ａ，５４ｂを配置し、開閉駆動装置（エアシリンダなど）５３ｃ，５４ｃにより一方の加圧ブロック５３ｂ，５４ｂを他方に押し付けて第１充填チューブ５１を挟み付け流量を調整することができる。
【００２７】
この実施の形態では、小流量バルブ４４，５４を閉じた状態で所定の小流量が流れるように設定しておき、また大流量バルブ４３，５３は閉じた状態で全閉するように設定しておくことで、大流量バルブ４３，５３が閉で全閉、大流量バルブ４３，５３が開で小流量バルブ４４，５４が閉で低速充填、大流量バルブ４３，５３と小流量バルブ４４，５４が開で高速充填を行うことができる。
【００２８】
次に、この２液充填装置による充填方法を説明する。
１）これら２液充填装置は一定ピッチで回転テーブル（図示せず）上に配置されており、空の容器が供給されて所定位置にくると、第１充填チューブの大小流量バルブ４３，４４が全開にされ、さらに第１エアシリンダ５の第１開動室１１ａに作動空気が供給されて内筒３が下降され、第１弁体４が内筒３から離脱さてれ第１液が容器に高速充填される。
【００２９】
２）容器内に第１液が所定量供給されると（ロードセルなどで計測されている）、小流量バルブ４４が閉じられて第１液が低速充填に切り替えられる。そして第１液が所定量に達すると大流量バルブ４３が閉じられるとともに、第１エアシリンダ５の第１開動室１１ａから作動空気が排出されて第２充填筒７が引き上げられ第１弁体４により第１充填流路１が閉じられる。
【００３０】
３）第２充填チューブの大小流量バルブ５３，５４が全開にされ、さらに第２エアシリンダ１０の第２開動室２１ｂに作動空気が供給されて第２充填筒７が上方にスライドされ、第２弁体８から第２充填筒７が上方に離脱されて第２充填通路６が開放され第２液が容器に高速充填される。
【００３１】
４）容器内に第２液が所定量供給されると、小流量バルブ５４が閉じられて第２液が低速充填に切り替えられる。そして第２液が所定量に達すると大流量バルブ５３が閉じられるとともに、第２エアシリンダ１０の第２開動室２１ｂから作動空気が排出されて第２充填筒７が押し下げられ、第２弁体８により第２充填流路６が閉じられる。この時、第２充填筒７が下方にスライドされることにより、拡縮流路６ｃが拡張されて出口流路６ａ内の第２液が吸い上げられサックバックされ、第２液の液垂れを防止する。
【００３２】
なお、上記実施の形態では、第１液および第２液の充填量をその重量から検出したが、他の手段により第１充填通路１および第２充填通路６の流量をそれぞれ測定した場合には、第１液と第２液を同時に充填することもできる。
【００３３】
上記実施の形態によれば、軸心部に第１充填通路１を形成するとともにその外周部に第２充填通路６を形成し、第１弁体４を作動させる第１エアシリンダ５を内筒３と第１充填筒２の間に形成し、さらに第２弁体８を作動させる第２エアシリンダ１０を内筒３と外筒９の間に設けるように構成したので、全体をコンパクトに構成することができ、たとえばターンテーブル等に一定ピッチで配置する場合など、装置の大きさに制約されることもない。
【００３４】
また第２エアシリンダ１０により第２充填筒７を下降させて第２弁体８により第２充填通路６を閉止する時に、第２充填通路６の拡縮流路６ｃを拡張するように構成したので、出口流路６ａ内の第２液を吸い上げることができ、液垂れを防止することができる。
【００３５】
【発明の効果】
以上に述べたごとく請求項１記載の発明によれば、軸心部に第１充填通路を形成するとともにその外周部に第２充填通路を形成し、弁作動装置をそれぞれ筒体の間に設けるように構成したので、全体をコンパクトに構成することができ、たとえばターンテーブル等に一定ピッチで配置する場合など、装置の大きさに制約されることもない。
【００３６】
また請求項２記載の発明によれば、第１充填筒と内筒の間にシリンダ室を形成して、内筒を昇降駆動するので、コンパクト化をより促進することができる。
さらに請求項３記載の発明によれば、第２充填筒と外筒との間にシリンダ室を形成して、内筒を昇降駆動するので、コンパクト化をより促進することができる。
【００３７】
さらにまた請求項４記載によれば、第２弁体を閉動させる時に、第２充填通路を拡張して第２液を吸い上げることができ、液垂れを防止することができる。
【図面の簡単な説明】
【図１】本発明に係る２液充填装置の実施の形態を示し、基本構成を示す縦断面図である。
【図２】（ａ）〜（ｃ）はそれぞれ同２液充填装置の動作説明図である。
【図３】同２液充填装置の実施例を示す縦断面図である。
【図４】同２液充填装置の全体を示す正面断面図である。
【図５】同２液充填装置の全体を示す側面断面図である。
【符号の説明】
１第１充填通路
２第１充填筒
３内筒
４第１弁体
５第１エアシリンダ
６第２充填通路
７第２充填筒
８第２弁体
９外筒
１０第２エアシリンダ
１１ａ第１開動室
１２第１ピストン部
１３第１ばね
１４第１エア供給口
２１ｂ第２開動室
２２第２ピストン部
２３第２ばね
２４第２エア供給口
４２，５２ピンチバルブ
４３，５３大流量バルブ
４４，５４小流量バルブ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a two-component filling apparatus that supplies a liquid in which two components are mixed, such as a dressing containing edible oil, simultaneously or continuously.
[0002]
[Prior art]
Conventionally, a two-liquid filling apparatus proposed by the present inventors has been disclosed in Japanese Patent Application Laid-Open No. 9-118394, and is provided with a diaphragm valve in each of two filling passages.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional configuration, the valve case that accommodates the drive devices that respectively drive the two diaphragm valves protrudes on both sides, and the overall size increases. For example, the rotary table of the rotary type filling machine has a circumferential direction. In the case of mounting, there is a problem that the arrangement pitch becomes large and the whole size increases.
[0004]
An object of the present invention is to provide a two-pack filling device that can solve the above-described problems and can be made compact as a whole.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to a first aspect of the present invention, there is provided a first filling cylinder fitted in a first filling passage formed in the inner cylinder so as to be freely retractable in an axial direction, and the first filling cylinder. The first valve body provided at the front end of the first valve body is capable of opening and closing the first filling passage, and is provided between the first filling cylinder and the inner cylinder to open and close the first valve body. A first valve actuating means, a second filling cylinder that is externally fitted to the inner cylinder so as to be retractable in the axial direction, and a second filling passage is formed, and a tip of the second filling cylinder or the inner cylinder A second valve body that is provided to freely open and close the second filling passage, and a second valve operating means that is interposed in a peripheral portion of the second filling cylinder to open and close the second valve body by moving the second filling cylinder back and forth. It is equipped.
[0006]
According to the above embodiment, the first filling passage is formed in the shaft center portion and the second filling passage is formed in the outer peripheral portion thereof, and the valve operating device is provided between the cylinders. The size of the apparatus is not limited, for example, when it is arranged at a constant pitch on a turntable or the like.
[0007]
According to a second aspect of the present invention, the first valve actuating means in the above configuration is formed in one of the first filling cylinder and the inner cylinder, and formed in the other and slidably fitted into the cylinder chamber. And a first fluid pressure cylinder device having a piston portion.
[0008]
According to the above configuration, since the cylinder chamber is formed between the first filling cylinder and the inner cylinder and the inner cylinder is driven to move up and down, the compactness can be further promoted.
[0009]
Furthermore, the invention according to claim 3 is the above-described configuration, wherein the second valve operating means is formed on one of the second filling cylinder and the outer cylinder that is fitted on the second filling cylinder so as to be slidable in the axial direction. The second fluid pressure cylinder device includes a cylinder chamber and a piston portion formed on the other side and slidably fitted in the cylinder chamber.
[0010]
According to the above configuration, since the cylinder chamber is formed between the second filling cylinder and the outer cylinder and the inner cylinder is driven to move up and down, it is possible to further promote downsizing.
[0011]
According to a fourth aspect of the invention, when the second filling cylinder is operated by the second valve actuating means to close the second valve body, the second filling passage is expanded to suck the second liquid. It is comprised as follows.
[0012]
According to the above configuration, when the second valve body is closed, the second filling passage can be expanded to suck up the second liquid, and dripping can be prevented.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Here, an embodiment of a two-liquid filling apparatus according to the present invention will be described with reference to FIGS.
First, a description will be given with reference to the basic configuration diagrams of FIGS.
The first filling cylinder 2 is fitted in an inner cylinder 3 formed in the axial center portion of the first filling passage 1 for supplying the first liquid so as to be retractable in the axial direction. The first filling cylinder 2 is formed with an outlet channel 1a of the first filling passage 1 and is opened by cutting out one side portion of the lower portion. A first valve body (shutter valve) 4 that can open and close the opening is provided. A first air cylinder (first fluid pressure) is provided between the first filling cylinder 2 and the inner cylinder 3 and serves as a first valve operating means that opens and closes the first filling cylinder 2 to open and close the first valve body. Cylinder device) 5 is provided.
[0014]
The inner cylinder 3 is formed with a fixed flow path 6b of the second filling passage 6 for supplying the second liquid, and is externally fitted to the inner cylinder 3 and the inner cylinder 3 so as to be retractable in the axial direction. An outlet flow path 6 a of the second filling passage 6 is formed between the second filling cylinder 7 and the second filling cylinder 7. A second valve body 8 that is fitted in the second filling cylinder 7 and that can freely open and close the second filling passage 6 bulges over the entire circumference at the end of the inner cylinder 3. Further, an outer cylinder (lower housing) 9 is fitted on the outer peripheral portion of the second filling cylinder 7 so as to be slidable in the axial direction, and the second filling cylinder 7 is interposed between the second filling cylinder 7 and the outer cylinder 9. A second air cylinder (second fluid pressure cylinder device) 10 is provided as second valve operating means for opening and closing the second filling passage 6 to open and close.
[0015]
The first air cylinder 5 is a cylinder chamber formed between a concave portion formed around the inner peripheral surface of the inner cylinder 3 and an outer peripheral surface of the first filling cylinder 2 facing the concave portion. A first piston portion 12 protruding over the entire circumference is slidably fitted into the first cylinder chamber 5. A first air supply port 14 through which working air is supplied and discharged is formed in the first opening chamber 11a on the first piston portion 12, and the first piston portion 12 is placed in the lower first closing chamber 11b. A first spring 13 is interposed as a first urging means that urges the first filling cylinder 2 upward (in the closing direction).
[0016]
The second filling passage 6 includes a fixed flow path 6b formed in the inner cylinder 3 in the upper part, an outlet flow path 6b formed between the inner cylinder 3 and the second filling cylinder 7 in the lower part, and a fixed flow. Between the path 6a and the outlet flow path 6b, it is comprised by the expansion / contraction flow path 6c contracted by the raise of the 2nd filling cylinder 7, and expanded by descent | fall.
[0017]
In the second air cylinder 10, a step portion that forms an expansion / contraction space (flow path) 6 c at the upper portion of the second filling cylinder 7 is formed in the second piston portion 22, and the second air cylinder 10 is formed between the inner cylinder 3 and the outer cylinder 9. A second cylinder chamber 21 that slidably accommodates the piston portion 22 is formed. A second spring 23 for biasing the second filling cylinder 7 downward (in the closing movement direction) is interposed in the second closing chamber 21a formed above the second piston portion 22 and formed below. The second opening chamber 21b is formed with a second air supply port 24 through which working air is supplied and discharged.
[0018]
Therefore, as shown in FIG. 1, in a state where the working air is not supplied, the first air cylinder 5 is urged in the upward closing direction by the first spring 13, and the first filling passage 1 becomes the first valve body 4. The second air cylinder 10 is urged in the downward closing direction by the second spring 23, and the second filling passage 6 is closed by the second valve body 8.
[0019]
Further, as shown in FIG. 2A, when the working air is supplied to the first open chamber 11a of the first air cylinder 5, the first filling cylinder 2 is slid downward through the first piston portion 12. When the first valve body 4 is detached downward from the inner cylinder 3, the first filling passage 1 is opened and the first liquid is supplied.
[0020]
Further, as shown in FIG. 2 (b), when the working air is supplied to the second opening chamber 21 b of the second air cylinder 10, the second filling cylinder 7 is slid upward through the second piston portion 22. When the second filling cylinder 7 is detached upward from the second valve body 8, the second filling passage 6 is opened and the second liquid is supplied.
[0021]
Furthermore, as shown in FIG. 2 (c), the working air is supplied to the first opening chamber 11 a of the first air cylinder 5 and the second opening chamber 21 b of the second air cylinder 10, respectively. 2 is slid downward, the second filling cylinder 7 is slid upward, the first filling passage 1 closed by the first valve body 4 is opened and the first liquid is supplied, and at the same time by the second valve body 8 The closed second filling passage 6 is opened and the second liquid is supplied.
[0022]
Further, when the second filling passage 6 is opened by sliding the second filling cylinder 7 upward, the expansion / contraction channel 6c is in a contracted state. Therefore, when working air is discharged from the second open chamber 21b of the second air cylinder 10 and the second filling cylinder 7 is slid downward, the expansion / contraction channel 6c is expanded and the second liquid in the outlet channel 6a is expanded. Suck back can be sucked up, and dripping can be prevented.
[0023]
FIG. 3 is a detailed view (Example) of the above two-liquid filling device, the sliding part between the first filling cylinder 2 and the inner cylinder 3, the sliding part between the inner cylinder 3 and the second filling cylinder 7, and the second part. Sealing members such as O-rings are interposed in the sliding portions of the filling cylinder 7 and the outer cylinder 9. In addition, an upper housing 31 that slidably guides the upper end portion of the first filling cylinder 2 and supports the inner cylinder 3 is provided at the upper portion, and the first filling passage 1 and the second housing 31 are provided in the upper housing 31. A filling passage 6 is formed. 33 is an upper connector for connecting the upper housing 31 and the joint 32, 34 is an intermediate connector for connecting the upper housing 31 and the inner cylinder 3, and 35 is a lower connector for connecting the inner cylinder 3 and the outer cylinder 9. . Further, the first air supply port 14 and the second air supply port 24 are respectively provided with connectors 15 and 25 for connection with an air hose.
[0024]
FIGS. 4 and 5 are general views of the two-liquid filling device. The first filling tube 41 is connected to the first joint port 32a provided in the joint 32 and communicated with the first filling passage 1, and the second filling is performed. A second filling tube 51 is connected to the second joint port 32 b communicating with the passage 6, and the first and second pinch valves 42, 52 for flow rate control are connected to the first and second filling tubes 41, 51. Each is provided.
[0025]
The first pinch valve 42 includes a large flow valve 43 disposed in the downstream portion and a small flow valve 44 disposed in the upstream portion, and a pair of pressurizing blocks at a position opposite to the first filling tube 41 made of a flexible material. 43a, 43b and 44a, 44b are arranged, and one pressurizing block 43b, 44b is pressed against the other by an opening / closing drive device (air cylinder, etc.) 43c, 44c to clamp the first filling tube 41 and adjust the flow rate. it can.
[0026]
The second pinch valve 52 includes a large flow valve 53 disposed in the downstream portion and a small flow valve 54 disposed in the upstream portion, and a pair of pressurizations are provided at positions opposed to the first filling tube 52 made of a flexible material. Blocks 53a, 53b and 54a, 54b are arranged, and one pressurizing block 53b, 54b is pressed against the other by an opening / closing drive device (air cylinder, etc.) 53c, 54c to clamp the first filling tube 51 and adjust the flow rate. Can do.
[0027]
In this embodiment, the small flow rate valves 44 and 54 are set to be closed so that a predetermined small flow rate flows, and the large flow rate valves 43 and 53 are set to be fully closed in the closed state. The large flow valves 43 and 53 are closed and fully closed, the large flow valves 43 and 53 are open, the small flow valves 44 and 54 are closed, and the low flow rate filling is performed. The large flow valves 43 and 53 and the small flow valves 44 and 54 are closed. Is open and can be filled at high speed.
[0028]
Next, a filling method using this two-pack filling device will be described.
1) These two liquid filling devices are arranged on a rotary table (not shown) at a constant pitch. When an empty container is supplied and reaches a predetermined position, the large and small flow rate valves 43 and 44 of the first filling tube are turned on. Fully opened, further, the working air is supplied to the first opening chamber 11a of the first air cylinder 5, the inner cylinder 3 is lowered, the first valve body 4 is detached from the inner cylinder 3, and the first liquid is transferred to the container at high speed. Filled.
[0029]
2) When a predetermined amount of the first liquid is supplied into the container (measured by a load cell or the like), the small flow valve 44 is closed and the first liquid is switched to low speed filling. When the first liquid reaches a predetermined amount, the large flow valve 43 is closed and the working air is discharged from the first open chamber 11a of the first air cylinder 5 to lift the second filling cylinder 7 and the first valve body 4. Thus, the first filling channel 1 is closed.
[0030]
3) The large and small flow rate valves 53 and 54 of the second filling tube are fully opened, and the working air is supplied to the second opening chamber 21b of the second air cylinder 10 so that the second filling cylinder 7 is slid upward. The second filling cylinder 7 is detached upward from the valve body 8, the second filling passage 6 is opened, and the container is filled with the second liquid at high speed.
[0031]
4) When a predetermined amount of the second liquid is supplied into the container, the small flow rate valve 54 is closed and the second liquid is switched to low speed filling. When the second liquid reaches a predetermined amount, the large flow rate valve 53 is closed, the working air is discharged from the second open chamber 21b of the second air cylinder 10, the second filling cylinder 7 is pushed down, and the second valve body The second filling flow path 6 is closed by 8. At this time, the second filling cylinder 7 is slid downward, so that the expansion / contraction channel 6c is expanded and the second liquid in the outlet channel 6a is sucked up and sucked back to prevent the second liquid from dripping. .
[0032]
In the above embodiment, the filling amounts of the first liquid and the second liquid are detected from their weights. However, when the flow rates of the first filling passage 1 and the second filling passage 6 are measured by other means, respectively. The first liquid and the second liquid can be filled at the same time.
[0033]
According to the above-described embodiment, the first filling passage 1 is formed in the shaft center portion, the second filling passage 6 is formed in the outer peripheral portion thereof, and the first air cylinder 5 for operating the first valve body 4 is provided as the inner cylinder. 3 and the first filling cylinder 2 and the second air cylinder 10 for operating the second valve body 8 is provided between the inner cylinder 3 and the outer cylinder 9, so that the whole is compact. For example, it is not limited by the size of the apparatus when it is arranged on a turntable or the like at a constant pitch.
[0034]
Also, when the second filling cylinder 7 is lowered by the second air cylinder 10 and the second filling passage 6 is closed by the second valve body 8, the expansion / contraction flow path 6c of the second filling passage 6 is expanded. The second liquid in the outlet channel 6a can be sucked up, and dripping can be prevented.
[0035]
【The invention's effect】
As described above, according to the first aspect of the present invention, the first filling passage is formed in the shaft center portion and the second filling passage is formed in the outer peripheral portion thereof, and the valve operating devices are provided between the cylinders. Thus, the overall configuration can be made compact, and the size of the apparatus is not limited, for example, when it is arranged on a turntable or the like at a constant pitch.
[0036]
According to the second aspect of the present invention, since the cylinder chamber is formed between the first filling cylinder and the inner cylinder and the inner cylinder is driven to move up and down, the downsizing can be further promoted.
Furthermore, according to the invention described in claim 3, since the cylinder chamber is formed between the second filling cylinder and the outer cylinder and the inner cylinder is driven to move up and down, the compactness can be further promoted.
[0037]
According to the fourth aspect of the present invention, when the second valve body is closed, the second filling passage can be expanded to suck up the second liquid, and dripping can be prevented.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a basic configuration of an embodiment of a two-liquid filling apparatus according to the present invention.
FIGS. 2A to 2C are operation explanatory views of the two-liquid filling device, respectively.
FIG. 3 is a longitudinal sectional view showing an embodiment of the two-liquid filling apparatus.
FIG. 4 is a front sectional view showing the entire two-liquid filling apparatus.
FIG. 5 is a side sectional view showing the entire two-liquid filling apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st filling path 2 1st filling cylinder 3 Inner cylinder 4 1st valve body 5 1st air cylinder 6 2nd filling path 7 2nd filling cylinder 8 2nd valve body 9 Outer cylinder 10 2nd air cylinder 11a 1st opening Chamber 12 First piston portion 13 First spring 14 First air supply port 21b Second opening chamber 22 Second piston portion 23 Second spring 24 Second air supply port 42, 52 Pinch valve 43, 53 Large flow rate valves 44, 54 Small flow valve

Claims

A first filling cylinder fitted in a first filling passage formed in the inner cylinder so as to be freely retractable in the axial direction;
A first valve body provided at the tip of the first filling cylinder and capable of opening and closing the first filling passage;
First valve actuating means provided between the first filling cylinder and the inner cylinder for opening and closing the first valve body by moving the first filling cylinder out and out;
A second filling cylinder that is externally fitted to the inner cylinder so as to be freely retractable in the axial direction to form a second filling passage;
A second valve body provided at the tip of the second filling cylinder or the inner cylinder and capable of opening and closing the second filling passage;
A two-liquid filling device comprising: a second valve actuating means that opens and closes the second filling cylinder and opens and closes the second valve body by being interposed in a peripheral portion of the second filling cylinder.

The first valve operating means includes a first fluid pressure including a cylinder chamber formed in one of the first filling cylinder and the inner cylinder, and a piston portion formed in the other and slidably fitted in the cylinder chamber. 2. The two-liquid filling apparatus according to claim 1, wherein the two-liquid filling apparatus is constituted by a cylinder device.

The second valve actuating means includes a cylinder chamber formed in one of a second filling cylinder and an outer cylinder fitted to the second filling cylinder so as to be slidable in the axial direction, and formed in the other cylinder chamber. 3. The two-liquid filling device according to claim 1, wherein the two-fluid filling device comprises a second fluid pressure cylinder device including a piston portion slidably fitted.

The second filling passage is expanded and the second liquid is sucked when the second valve cylinder is operated by the second valve actuating means to close the second valve body. Or the 2 liquid filling apparatus of 3.