JP2009014589A - Gas concentration measuring method in packaging machine - Google Patents
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 120
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 162
- 239000011261 inert gas Substances 0.000 claims abstract description 8
- 238000010926 purge Methods 0.000 claims description 44
- 238000000691 measurement method Methods 0.000 claims description 15
- 230000001678 irradiating effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 34
- 238000007689 inspection Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 238000005259 measurement Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000004566 IR spectroscopy Methods 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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Abstract
Description
本発明は、ガス充填包装機の工程中において、全数の包装容器について当該容器を損傷することなく内部の特定ガスの濃度を測定する方法に関する。 The present invention relates to a method for measuring the concentration of a specific gas inside an entire number of packaging containers during the process of a gas filling packaging machine without damaging the containers.
ガス充填包装機では、包装袋内に被包装物を充填するとほぼ同時に窒素ガス等によりガス置換を行なってから袋口の密封が施される。特許文献1には、包装袋への被包装物及び不活性ガスの充填を行なうガス充填包装機が開示されている。 In the gas-filled packaging machine, the bag mouth is sealed after gas replacement with nitrogen gas or the like is performed almost simultaneously with the filling of the packaging bag. Patent Document 1 discloses a gas filling and packaging machine that fills a packaging bag with an article to be packaged and an inert gas.
ところで、包装済みの製品たる包装袋内に残存する酸素濃度を測定する場合には、酸素濃度計に備えられた注射針を包装袋に刺し込んで内部のガスを吸引することによりガス濃度を分析・測定している。検査に用いる製品(包装袋)は、上記注射針の孔が必ず開いてしまうことから、検査後に廃棄しなければならない。勿論、全数検査をすることはできないので、抜き取り検査が行なわれている。その抜き取り検査についても、検査数を増やせば測定時間も多くなり、その上経済的な損失を生ずるという不都合があった。 By the way, when measuring the oxygen concentration remaining in the packaging bag, which is a packaged product, the gas concentration is analyzed by inserting the injection needle provided in the oximeter into the packaging bag and sucking the internal gas.・ Measured. The product (packaging bag) used for the inspection must be discarded after the inspection because the hole of the injection needle is always opened. Of course, since 100% inspection cannot be performed, sampling inspection is performed. As for the sampling inspection, if the number of inspections is increased, the measurement time increases, and there is also a disadvantage that an economic loss occurs.
また、包装済みの包装袋に密封不良があるか否かを検査する方法として、包装リーク検査方法も知られている。例えば、特許文献2には、包装された検査品を真空中に置き、真空中でのマーカガス量の時間的変化を測定し、所定時点における量値と良品の同一時点における量値を比較して測定量値が良品の量値よりも大きい場合、その検査品を不良品と判定するシールの良否判定方法が開示されている。
A packaging leak inspection method is also known as a method for inspecting whether or not a packaged packaging bag has a sealing failure. For example, in
包装リーク検査方法は、検査品を収める減圧容器内を一々負圧状態にしなければならず測定時間も長く掛かるため、ガス充填包装機で生産される包装容器(製品)の全数検査には適さないと言えよう。
本発明の目的は、包装機の工程中において全数の包装容器について当該容器を損傷することなく内部の特定ガスの濃度を迅速に測定することが可能なガス濃度測定方法を提供することにある。 An object of the present invention is to provide a gas concentration measurement method capable of quickly measuring the concentration of a specific gas inside an entire number of packaging containers during the process of the packaging machine without damaging the containers.
前記目的を達成するために請求項1に記載した発明は、ガス置換をして包装された包装容器内の特定ガスの濃度を測定手段により測定するガス濃度測定方法であって、
前記測定手段として、特定波長のレーザー光を照射する発信器を備えたレーザー発生部と、その発信器から発振されるレーザー光を受光する受信器を備えたレーザー受光部とからなるレーザー式ガス濃度計を用い、前記包装容器内に被包装物を充填して不活性ガスによるガス置換を行なってから開口部の密封を施すようにした包装機の工程中に、前記発信器と受信器を相対的に接近及び離隔自在に設け、包装容器の両側で、かつ光透過可能箇所に前記発信器と受信器を夫々密着させた状態にて当該包装容器内の特定ガスの濃度を測定することを特徴とする。
In order to achieve the above object, the invention described in claim 1 is a gas concentration measuring method for measuring the concentration of a specific gas in a packaging container packed by gas replacement by a measuring means,
Laser type gas concentration comprising a laser generator having a transmitter for irradiating laser light of a specific wavelength as the measuring means, and a laser receiver having a receiver for receiving laser light oscillated from the transmitter Using a meter, the transmitter and receiver are placed in a relative position during the process of the packaging machine in which the packaging container is filled with an object to be packaged and gas is replaced with an inert gas, and then the opening is sealed. The concentration of the specific gas in the packaging container is measured in a state where the transmitter and the receiver are in close contact with each other on both sides of the packaging container and at places where light can be transmitted. And
同様の目的を達成するために請求項2に記載した発明は、ガス置換をして包装された包装容器内の特定ガスの濃度を測定手段により測定するガス濃度測定方法であって、
前記測定手段として、特定波長のレーザー光を照射する発信器を備えたレーザー発生部と、その発信器から発振されるレーザー光を受光する受信器を備えたレーザー受光部とからなるレーザー式ガス濃度計を用い、前記包装容器内に被包装物を充填して不活性ガスによるガス置換を行なってから開口部の密封を施すようにした包装機の工程中に、前面の開口部同士を対向させて配置した一対のガスパージ用ケース内に前記発信器と受信器を夫々収めると共にそれらガスパージ用ケースを相対的に接近及び離隔自在に設け、包装容器の両側で、かつ光透過可能箇所に前記ガスパージ用ケースを夫々密着させてパージガスを流した状態にて当該包装容器内の特定ガスの濃度を測定することを特徴とする。
In order to achieve the same object, the invention described in
Laser type gas concentration comprising a laser generator having a transmitter for irradiating laser light of a specific wavelength as the measuring means, and a laser receiver having a receiver for receiving laser light oscillated from the transmitter Using a meter, the front openings are made to face each other during the process of the packaging machine in which the packaging container is filled with the object to be packaged and gas is replaced with an inert gas, and then the openings are sealed. The transmitter and the receiver are housed in a pair of gas purge cases arranged in parallel, and the gas purge cases are provided so as to be relatively close to and away from each other. The case is characterized in that the concentration of the specific gas in the packaging container is measured in a state in which the cases are brought into close contact with each other and the purge gas is allowed to flow.
同様の目的を達成するために請求項3に記載した発明は、ガス置換をして包装された包装容器内の特定ガスの濃度を測定手段により測定するガス濃度測定方法であって、
前記測定手段として、特定波長のレーザー光を照射する発信器を備えたレーザー発生部と、その発信器から発振されるレーザー光を受光する受信器を備えたレーザー受光部とからなるレーザー式ガス濃度計を用い、前記包装容器内に被包装物を充填して不活性ガスによるガス置換を行なってから開口部の密封を施すようにした包装機の製品排出経路に、前記発信器と受信器を所定間隔に配置したガスパージ室を設け、そのガスパージ室内にパージガスを流した状態にて前記発信器と受信器の間を通過する包装容器内の特定ガスの濃度を測定することを特徴とする。
In order to achieve the same object, the invention described in claim 3 is a gas concentration measuring method for measuring the concentration of a specific gas in a packaging container packaged by gas replacement by a measuring means,
Laser type gas concentration comprising a laser generator having a transmitter for irradiating laser light of a specific wavelength as the measuring means, and a laser receiver having a receiver for receiving laser light oscillated from the transmitter The transmitter and the receiver are placed in the product discharge path of the packaging machine in which the opening is sealed after the packaging container is filled with the object to be packaged and the gas is replaced with an inert gas. A gas purge chamber arranged at a predetermined interval is provided, and the concentration of the specific gas in the packaging container passing between the transmitter and the receiver is measured in a state in which the purge gas flows in the gas purge chamber.
同様の目的を達成するために請求項4に記載した発明は、請求項3に記載の包装機におけるガス濃度測定方法において、前記包装容器が、包装袋又は瓶であることを特徴とするものである。 In order to achieve the same object, the invention described in claim 4 is characterized in that, in the gas concentration measurement method in the packaging machine according to claim 3, the packaging container is a packaging bag or a bottle. is there.
(請求項1の発明)
この包装機におけるガス濃度測定方法は、包装容器の両側で、かつ光透過可能箇所にレーザー式ガス濃度計の発信器と受信器を夫々密着させた状態にて当該包装容器内の酸素等の特定ガスの濃度を測定するので、全数の包装容器について当該容器を一切損傷することなく特定ガスの濃度を迅速に測定することができ、製品の品質の向上に寄与する。さらに、レーザー式ガス濃度計を包装機の工程中に設置しているので、ガス置換の不良な製品の発見が早くなり、その不具合に早期に対処することにより生産効率を高めることができる。
(Invention of Claim 1)
The gas concentration measurement method in this packaging machine is to specify the oxygen etc. in the packaging container with the transmitter and receiver of the laser gas concentration meter in close contact with each other on both sides of the packaging container. Since the concentration of gas is measured, the concentration of a specific gas can be measured quickly without damaging all of the packaging containers, contributing to the improvement of product quality. In addition, since the laser gas concentration meter is installed in the packaging machine process, the product with poor gas replacement can be found quickly, and the production efficiency can be improved by addressing the problem at an early stage.
(請求項2の発明)
この包装機におけるガス濃度測定方法は、包装容器の両側で、かつ光透過可能箇所にガスパージ用ケースを夫々密着させてパージガスを流した状態にて当該包装容器内の特定ガスの濃度をレーザー式ガス濃度計により測定するので、全数の包装容器について当該容器を一切損傷することなく特定ガスの濃度を高精度で迅速に測定することができ、製品の品質の向上に寄与する。
(Invention of Claim 2)
The gas concentration measuring method in this packaging machine is such that the concentration of a specific gas in the packaging container is measured with a laser gas in a state in which the gas purging case is brought into close contact with both sides of the packaging container and in a light transmissive place. Since measurement is performed with a densitometer, the concentration of a specific gas can be measured quickly and accurately without damaging all of the packaging containers, which contributes to the improvement of product quality.
(請求項3の発明)
この包装機におけるガス濃度測定方法は、縦ピロー包装機等の包装機の製品排出経路に設けたガスパージ室内にパージガスを流した雰囲気状態にてレーザー式ガス濃度計の発信器と受信器の間を通過する包装容器内の特定ガスの濃度を測定するので、全数の包装容器について当該容器を一切損傷することなく特定ガスの濃度を高精度で迅速に測定することができ、製品の品質の向上に寄与する。
(Invention of Claim 3)
In this packaging machine, the gas concentration measurement method is performed between a transmitter and a receiver of a laser gas concentration meter in an atmosphere state in which a purge gas is flowed into a gas purge chamber provided in a product discharge path of a packaging machine such as a vertical pillow packaging machine. Since the concentration of the specified gas in the passing packaging container is measured, the concentration of the specified gas can be measured quickly and accurately without damaging all of the packaging containers, thereby improving the quality of the product. Contribute.
(請求項4の発明)
この包装機におけるガス濃度測定方法は、瓶詰め包装機等の製品排出経路に設けたガスパージ室内にパージガスを流した雰囲気状態にてレーザー式ガス濃度計の発信器と受信器の間を通過する瓶等の内部の特定ガスの濃度を測定するので、全数の瓶等について特定ガスの濃度を高精度で迅速に測定することができ、製品の品質の向上に寄与する。
(Invention of Claim 4)
The gas concentration measurement method in this packaging machine is a bottle that passes between a transmitter and a receiver of a laser gas concentration meter in an atmosphere in which purge gas is flowed into a gas purge chamber provided in a product discharge path of a bottling packaging machine, etc. Since the concentration of the specific gas inside is measured, the concentration of the specific gas can be quickly measured with high accuracy for all the bottles and the like, which contributes to the improvement of product quality.
以下に、本発明の最良の形態例を図面に基づいて説明する。図1は本発明方法に用いるレーザー式ガス濃度計の説明図、図2は本発明方法の第1実施形態を適用したガス充填包装機の説明図、図3は第1実施形態の検知手段の説明図、図4は第2実施形態の検知手段の説明図、図5は第3実施形態の検知手段の説明図、図6は第4実施形態の検知手段の説明図、図7は第5実施形態の検知手段の説明図、図8は第6実施形態の検知手段の説明図である。 The best mode of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram of a laser gas concentration meter used in the method of the present invention, FIG. 2 is an explanatory diagram of a gas filling and packaging machine to which the first embodiment of the method of the present invention is applied, and FIG. 3 is a detection means of the first embodiment. FIG. 4 is an explanatory view of the detection means of the second embodiment, FIG. 5 is an explanatory view of the detection means of the third embodiment, FIG. 6 is an explanatory view of the detection means of the fourth embodiment, and FIG. FIG. 8 is an explanatory view of the detection means of the sixth embodiment, and FIG. 8 is an explanatory view of the detection means of the sixth embodiment.
本発明の包装機におけるガス濃度測定方法は、ガス置換をして包装された包装容器内の特定ガスである酸素濃度を測定するものである。測定手段としては、以下に説明する公知構造のレーザー式ガス濃度計Mを用いる。 The gas concentration measurement method in the packaging machine of the present invention measures the oxygen concentration, which is a specific gas, in a packaging container packaged by gas replacement. As a measuring means, a laser type gas concentration meter M having a known structure described below is used.
このレーザー式ガス濃度計Mは、半導体レーザーを光源とする赤外線吸収分光法を利用するもので、測定対象の分子に固有周波数の光を与えると光エネルギーを吸収しこれを測定することによりガス濃度の表示を行なうものである。図1に示すように、レーザー式ガス濃度計Mは、レーザーの発生部10とレーザー受光部20とからなる。
This laser gas concentration meter M uses infrared absorption spectroscopy using a semiconductor laser as a light source. When light of a natural frequency is given to a molecule to be measured, it absorbs light energy and measures the gas concentration. Is displayed. As shown in FIG. 1, the laser gas concentration meter M includes a laser generation unit 10 and a laser
レーザーの発生部10は、特定波長のレーザー光を発生させてファイバーケーブル15を介して測定ガスに照射する機能を有し、レーザーダイオードに安定電源を供給する電源ユニット11、レーザーダイオードから出力されるレーザー光の波長、その強度を安定するための冷却器ユニット12、冷却器ユニット12の冷却器の温度を一定にするための温度コントローラ13から構成されている。
The laser generator 10 has a function of generating laser light of a specific wavelength and irradiating the measurement gas via the fiber cable 15, and is output from the
レーザー受光部20は、ファイバーケーブル22を介して測定ガスにより吸収されたレーザー光の強度を測定してその強度からガス濃度を出力させる機能を有し、上記レーザーの発生部10から照射されたレーザー光が測定ガスを通過して吸収されたレーザー光を測定して酸素濃度に変換して表示を行なう計測・表示ユニット21で構成されている。
The
25は特定波長のレーザー光を照射する発信器である。酸素ガスの場合、波長(固有周波数)については、760〜770nmの範囲から選択される。27は発信器25から発振されるレーザー光を受光する受信器であり、図1に示す反射プリズムを用いる場合もある。26は発信器25から照射され測定ガスを透過して反射プリズムを経てキャッチしたレーザー光を電流に変換して計測・表示ユニット21に出力する検出部である。
(実施形態例1)
本発明方法の第1実施形態を適用したロータリー式ガス充填包装機Pを図2に示す。この包装機Pは、給袋工程(1)、賞味期限等の印字工程(2)、包装袋の開口工程(3)、被包装物の充填工程(4)、押込み工程(5)、ノズル挿入及び仮付けシール工程(6)、ガス置換・モミホグシ工程(7)〜(13)、トップシール工程(14)、シール冷却・ガス置換検知工程(15)、製品取出し工程(16)の16工程からなる。
(Example 1)
A rotary type gas filling and packaging machine P to which the first embodiment of the method of the present invention is applied is shown in FIG. This packaging machine P includes a bag feeding process (1), a printing process (2) such as the expiration date, a packaging bag opening process (3), a filling process (4), a pushing process (5), and a nozzle insertion. And from the 16 steps of the temporary sealing step (6), the gas replacement / burning step (7) to (13), the top sealing step (14), the seal cooling / gas replacement detection step (15), and the product removal step (16) Become.
この包装機Pの機台31上には、縦向きの間欠回転軸を回転自由に支持したスタンドを設け、その間欠回転軸に取り付けた円盤状の回転体32には、包装容器たる包装袋aを掴着又は釈放するための16個のグリップ対gが等角度間隔で放射方向に突出するように設けられている。なお、包装袋aは全体が透明であるか、一部に透明部分があることを要する。
On the
シール冷却・ガス置換検知工程(15)には、上記レーザー式ガス濃度計Mの検知手段35が設けられている。図3に示すように、この検知手段35は、上記機台31に取り付けられたベース36に一対の縦向きのレバー37を揺動可能に軸支し、一方のレバー37に上記ガス濃度計の発信器25、他方のレバー37に受信器27を取り付けている。発信器25の前面には当て板25aを、受信器27の前面には当て板27aを設けている。そして、発信器25と受信器27とは、図示しないカムとレバー機構の作動によりレバー37、37を揺動させることにより相対的に接近及び離隔自在に設けられている。
In the seal cooling / gas replacement detecting step (15), the detecting means 35 of the laser gas concentration meter M is provided. As shown in FIG. 3, the detection means 35 pivotally supports a pair of
シール冷却・ガス置換検知工程(15)には、前工程のトップシール工程(14)で施された包装袋aの袋口bのヒートシール部分を冷却するための冷却手段40の一対の冷却バー41が接離自在に設けられている。 In the seal cooling / gas replacement detection step (15), a pair of cooling bars of the cooling means 40 for cooling the heat seal portion of the bag mouth b of the packaging bag a applied in the top seal step (14) of the previous step. 41 is provided so that contact / separation is possible.
しかして、図示しないカムとレバー機構の作動によりレバー37、37を揺動させることにより包装袋aの両側で、かつ光透過可能箇所に発信器25と受信器27を夫々密着させた状態とし、その状態で包装袋a内の酸素濃度を測定する本発明の包装機におけるガス濃度測定方法の第1実施形態の検知手段35が構成される。
Accordingly, the
なお、測定方法については、上記レーザー式ガス濃度計Mの説明の中で述べているので、説明を省く。 Since the measurement method is described in the description of the laser gas concentration meter M, the description is omitted.
(実施形態例2)
本発明方法の第2実施形態の検知手段45を図4に示す。この検知手段45は、アンプルや輸液バッグ等の被包装物dを包装袋に包装するガス充填包装機に好適であり、第1実施形態の検知手段35と同様、包装機の工程中に設ける。前面のみを開放した箱形のガスパージ用ケース46は、その開口部47に額縁状のスポンジ48が固定され、側部に窒素ガス等のパージガスを導入する配管の継ぎ手49が設けられている。2つのガスパージ用ケース46、46の内部には、上記ガス濃度計Mの発信器25と受信器(図示せず)が夫々収められている。ガスパージ用ケース46、46は、前面の開口部47同士を対向させて配置され、図示しないスライド機構により相対的に接近及び離隔自在に設けられている。
The detection means 45 of the second embodiment of the method of the present invention is shown in FIG. This detection means 45 is suitable for a gas-filling packaging machine that wraps an article to be packaged d such as an ampoule or an infusion bag in a packaging bag, and is provided during the packaging machine process, like the detection means 35 of the first embodiment. A box-shaped gas purge case 46 having only the front surface opened has a frame-
しかして、図示しないスライド機構の作動によりグリップ対gで支持された包装袋aの両側で、かつ光透過可能箇所にガスパージ用ケース46,46を夫々密着させてパージガスを流した雰囲気状態にて当該包装袋a内の酸素濃度を測定する本発明の包装機におけるガス濃度測定方法の第2実施形態の検知手段45が構成される。 Accordingly, the gas purging cases 46 and 46 are brought into close contact with both sides of the packaging bag a supported by the grip pair g by the operation of a slide mechanism (not shown) and light transmissive, and the purge gas is allowed to flow. The detection means 45 of 2nd Embodiment of the gas concentration measuring method in the packaging machine of this invention which measures the oxygen concentration in the packaging bag a is comprised.
(実施形態例3)
本発明方法の第3実施形態の検知手段45aを図5に示す。この検知手段45aは、前記第2実施形態の検知手段45と同じ構造とされているので、検知手段45の説明に用いた図面の符号にaを付して詳しい説明を省く。この検知手段45aはロータリー式ガス充填包装機に限らず、包装袋に包装された製品eを水平方向に排出する構造の包装機に適する。
(Embodiment 3)
FIG. 5 shows the detection means 45a of the third embodiment of the method of the present invention. Since the detection means 45a has the same structure as the detection means 45 of the second embodiment, a detailed description will be omitted by adding a to the reference numeral used in the description of the detection means 45. This detection means 45a is suitable not only for a rotary type gas filling and packaging machine but also for a packaging machine having a structure for discharging the product e packaged in a packaging bag in the horizontal direction.
(実施形態例4)
本発明方法の第4実施形態の検知手段50を図6に示す。この検知手段50は、シート状のフィルムを製袋しつつ被包装物を当該袋内に充填包装する縦ピロー包装機に好適であり、包装機の製品排出経路に検知手段50の箱形のガスパージ室51を設ける。ガスパージ室51には、包装されて1個ずつ切り離されていない状態の包装袋fを上下方向に通過させるため、上口52と下口53を形成し、その内部に上記レーザー式ガス濃度計Mの発信器25と受信器27を所定間隔に配置している。54はガスパージ室51の側部に設けられたパージガスを導入する配管の複数の継ぎ手である。
(Embodiment example 4)
FIG. 6 shows the detecting means 50 of the fourth embodiment of the method of the present invention. This detection means 50 is suitable for a vertical pillow packaging machine that forms a sheet-like film into a bag and fills and packs an object to be packaged in the bag, and the box-shaped gas purge of the detection means 50 in the product discharge path of the packaging machine. A
しかして、ガスパージ室51の内部にパージガスを流した雰囲気状態にて発信器25と受信器27の間を通過する包装袋f内の酸素濃度を測定する本発明の包装機におけるガス濃度測定方法の第4実施形態の検知手段50が構成される。
Thus, the gas concentration measuring method in the packaging machine of the present invention for measuring the oxygen concentration in the packaging bag f passing between the
(実施形態例5)
本発明方法の第5実施形態の検知手段60を図7に示す。この検知手段60は、シート状のフィルムを製袋しつつ被包装物を当該袋内に充填包装する横ピロー包装機に好適であり、包装機の製品排出経路であるコンベア65の上方に検知手段60のガスパージ室61を設ける。ガスパージ室61には、包装されて1個ずつ切り離されていない状態の包装袋hを通過させるため、入口62と出口63を形成し、その内部に上記レーザー式ガス濃度計Mの発信器25と受信器27を所定間隔に配置している。64はガスパージ室61の天部に設けられたパージガスを導入する配管の複数の継ぎ手である。
(Embodiment 5)
FIG. 7 shows the detecting means 60 of the fifth embodiment of the method of the present invention. This detection means 60 is suitable for a horizontal pillow packaging machine that forms a sheet-like film and fills and packs a packaged article in the bag, and is provided above the conveyor 65 that is a product discharge path of the packaging machine. Sixty gas purge chambers 61 are provided. An
しかして、ガスパージ室61の内部にパージガスを流した雰囲気状態にて発信器25と受信器27の間を通過する包装袋h内の酸素濃度を測定する本発明の包装機におけるガス濃度測定方法の第5実施形態の検知手段60が構成される。
Thus, the gas concentration measurement method in the packaging machine of the present invention for measuring the oxygen concentration in the packaging bag h passing between the
(実施形態例6)
本発明方法の第6実施形態の検知手段70を図8に示す。この検知手段70は、飲料等を瓶iに充填包装する瓶詰め包装機に適し、包装機の製品排出経路であるコンベア75の上方に検知手段70のガスパージ室71を設ける。ガスパージ室71には、縦向き状態の瓶iを通過させるため、入口72と出口73を形成し、その内部に上記レーザー式ガス濃度計Mの発信器25と受信器27を通過する瓶iの瓶口に対応するべく所定間隔に配置している。74はガスパージ室71の天部に設けられたパージガスを導入する配管の複数の継ぎ手である。
(Embodiment 6)
FIG. 8 shows the detection means 70 of the sixth embodiment of the method of the present invention. This detection means 70 is suitable for a bottling and packaging machine for filling and packaging beverages and the like in bottles i, and a gas purge chamber 71 of the detection means 70 is provided above a conveyor 75 which is a product discharge path of the packaging machine. In the gas purge chamber 71, an
しかして、ガスパージ室71の内部にパージガスを流した雰囲気状態にて発信器25と受信器27の間を通過する瓶iの内部の酸素濃度を測定する本発明の包装機におけるガス濃度測定方法の第6実施形態の検知手段70が構成される。
Thus, in the gas concentration measuring method in the packaging machine of the present invention, the oxygen concentration inside the bottle i passing between the
以上に述べた通り、この包装機におけるガス濃度測定方法は、包装容器の両側で、かつ光透過可能箇所にレーザー式ガス濃度計の発信器と受信器を夫々密着させた状態又は密着させずにパージガスを流した雰囲気状態等にて包装容器内の酸素等の特定ガスの濃度を測定するので、全数の包装容器について当該容器を一切損傷することなく特定ガスの濃度を迅速に測定することができる。 As described above, the gas concentration measurement method in this packaging machine is the state where the transmitter and receiver of the laser type gas concentration meter are in close contact with each other on both sides of the packaging container and at a light transmissive position, or without contact. Since the concentration of a specific gas such as oxygen in the packaging container is measured in an atmosphere state in which a purge gas is flowed, the concentration of the specific gas can be quickly measured for all the packaging containers without damaging the container at all. .
M・・・レーザー式ガス濃度計
10・・・レーザーの発生部
20・・・レーザー受光部
25・・・発信器
27・・・受信器
46・・・ガスパージ用ケース
51,61,71・・・ガスパージ室
a・・・包装袋(包装容器)
i・・・瓶(包装容器)
P・・・ガス充填包装機
M ... laser type gas concentration meter 10 ...
i ... Bottle (packaging container)
P ... Gas filling and packaging machine
Claims (4)
前記測定手段として、特定波長のレーザー光を照射する発信器を備えたレーザー発生部と、その発信器から発振されるレーザー光を受光する受信器を備えたレーザー受光部とからなるレーザー式ガス濃度計を用い、前記包装容器内に被包装物を充填して不活性ガスによるガス置換を行なってから開口部の密封を施すようにした包装機の工程中に、前記発信器と受信器を相対的に接近及び離隔自在に設け、包装容器の両側で、かつ光透過可能箇所に前記発信器と受信器を夫々密着させた状態にて当該包装容器内の特定ガスの濃度を測定することを特徴とする包装機におけるガス濃度測定方法。 A gas concentration measurement method for measuring the concentration of a specific gas in a packaging container packaged by gas replacement with a measuring means,
Laser type gas concentration comprising a laser generator having a transmitter for irradiating laser light of a specific wavelength as the measuring means, and a laser receiver having a receiver for receiving laser light oscillated from the transmitter Using a meter, the transmitter and receiver are placed in a relative position during the process of the packaging machine in which the packaging container is filled with an object to be packaged and gas is replaced with an inert gas, and then the opening is sealed. The concentration of the specific gas in the packaging container is measured in a state where the transmitter and the receiver are in close contact with each other on both sides of the packaging container and at places where light can be transmitted. Gas concentration measurement method in a packaging machine.
前記測定手段として、特定波長のレーザー光を照射する発信器を備えたレーザー発生部と、その発信器から発振されるレーザー光を受光する受信器を備えたレーザー受光部とからなるレーザー式ガス濃度計を用い、前記包装容器内に被包装物を充填して不活性ガスによるガス置換を行なってから開口部の密封を施すようにした包装機の工程中に、前面の開口部同士を対向させて配置した一対のガスパージ用ケース内に前記発信器と受信器を夫々収めると共にそれらガスパージ用ケースを相対的に接近及び離隔自在に設け、包装容器の両側で、かつ光透過可能箇所に前記ガスパージ用ケースを夫々密着させてパージガスを流した状態にて当該包装容器内の特定ガスの濃度を測定することを特徴とする包装機におけるガス濃度測定方法。 A gas concentration measurement method for measuring the concentration of a specific gas in a packaging container packaged by gas replacement with a measuring means,
Laser type gas concentration comprising a laser generator having a transmitter for irradiating laser light of a specific wavelength as the measuring means, and a laser receiver having a receiver for receiving laser light oscillated from the transmitter Using a meter, the front openings are made to face each other during the process of the packaging machine in which the packaging container is filled with the object to be packaged and gas is replaced with an inert gas, and then the openings are sealed. The transmitter and the receiver are housed in a pair of gas purge cases arranged in parallel, and the gas purge cases are provided so as to be relatively close to and away from each other. A gas concentration measuring method in a packaging machine, characterized in that the concentration of a specific gas in the packaging container is measured in a state in which a case is brought into close contact with a purge gas.
前記測定手段として、特定波長のレーザー光を照射する発信器を備えたレーザー発生部と、その発信器から発振されるレーザー光を受光する受信器を備えたレーザー受光部とからなるレーザー式ガス濃度計を用い、前記包装容器内に被包装物を充填して不活性ガスによるガス置換を行なってから開口部の密封を施すようにした包装機の製品排出経路に、前記発信器と受信器を所定間隔に配置したガスパージ室を設け、そのガスパージ室内にパージガスを流した状態にて前記発信器と受信器の間を通過する包装容器内の特定ガスの濃度を測定することを特徴とする包装機におけるガス濃度測定方法。 A gas concentration measurement method for measuring the concentration of a specific gas in a packaging container packaged by gas replacement with a measuring means,
Laser type gas concentration comprising a laser generator having a transmitter for irradiating laser light of a specific wavelength as the measuring means, and a laser receiver having a receiver for receiving laser light oscillated from the transmitter The transmitter and the receiver are placed in the product discharge path of the packaging machine in which the opening is sealed after the packaging container is filled with the object to be packaged and the gas is replaced with an inert gas. A packaging machine comprising a gas purge chamber arranged at a predetermined interval, and measuring a concentration of a specific gas in a packaging container passing between the transmitter and the receiver in a state in which the purge gas flows in the gas purge chamber Gas concentration measurement method.
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