JP4453408B2 - Manufacturing method of bagging food and sealing device for bagging filling - Google Patents

Manufacturing method of bagging food and sealing device for bagging filling Download PDF

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JP4453408B2
JP4453408B2 JP2004072407A JP2004072407A JP4453408B2 JP 4453408 B2 JP4453408 B2 JP 4453408B2 JP 2004072407 A JP2004072407 A JP 2004072407A JP 2004072407 A JP2004072407 A JP 2004072407A JP 4453408 B2 JP4453408 B2 JP 4453408B2
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佳之 森田
史章 渡部
伸一 末松
義弘 久延
和子 中野
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Toyo Seikan Group Holdings Ltd
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Description

本発明は、袋詰め食品の製造方法およびこの方法に使用する袋詰め充填シール装置に関する。   The present invention relates to a method for producing a bag-packed food and a bag-filling-seal device used in the method.

固体食品、流動状食品、液汁入り固体食品、飲料等（以下一括して「食品」という）を袋詰め食品として含気包装する場合は、食品の酸化、褐変等を防止するために、袋内の空気を窒素ガス等の不活性ガスによりガス置換することが必要になる。袋詰め食品の含気包装は一般に回転テーブル式充填シール機を使用して自動的に行われている。回転テーブル式充填シール機は、回転テーブルの周方向に等間隔で設けられた複数の袋保持ユニットを備え、かつ回転テーブルを囲むようにして袋開口部、食品充填部、密封部が固定して設けられ、回転テーブルを間欠的に回転させることにより各袋保持ユニットに保持された袋の開口、食品の充填および袋の密封を順次行うものである。この充填シール機を使用する包装方法において、従来は食品の充填後袋を密封する直前に不活性ガスのガスブローを行うことが一般に行われており、また、たとえば特許文献１に開示されるように食品の充填の直前にガスブローを行う方法、特許文献２に開示されるように食品の充填中にガスブローを行う方法、特許文献３に開示されるように食品の充填前および食品充填中にガスブローを行う方法、特許文献４に開示されるように袋の開口時および密封直前にガスブローを行う方法等種々のガス置換方法が提案されている。
特開平２−２３３３２１号公報 特開昭６０−９９８２０号公報 特開昭５４−９２４８７号公報 特開平７−３１３１２８号公報 When air-packing solid food, fluid food, solid food with liquid juice, beverages (hereinafter collectively referred to as “food”) as bag-packed food, in order to prevent food oxidation and browning, It is necessary to replace the air with an inert gas such as nitrogen gas. In general, air-packaging of packaged food is automatically performed using a rotary table type filling and sealing machine. The rotary table type filling and sealing machine includes a plurality of bag holding units provided at equal intervals in the circumferential direction of the rotary table, and a bag opening portion, a food filling portion and a sealing portion are fixedly provided so as to surround the rotary table. By opening the rotary table intermittently, opening of the bags held in each bag holding unit, filling of food and sealing of the bags are sequentially performed. In the packaging method using this filling and sealing machine, conventionally, an inert gas gas blow is generally performed immediately after sealing a bag after filling with food, and as disclosed in, for example, Patent Document 1 A method of performing gas blowing immediately before filling food, a method of performing gas blowing during food filling as disclosed in Patent Document 2, and a gas blowing before and during food filling as disclosed in Patent Document 3. Various gas replacement methods have been proposed, such as a method of performing gas blowing as disclosed in Patent Document 4 and immediately before the bag is opened and immediately before sealing.
JP-A-2-233321 JP-A-60-99820 JP 54-92487 A JP 7-313128 A

上記従来の不活性ガスによるガス置換は、いずれも回転テーブルの間欠回転において食品充填の前か後の１時点かあるいは食品充填の前後の間隔をおいた２時点において行われているが、ガスブロー時間は生産速度すなわち単位時間に何袋製造するかという速度によって決まるので、たとえば回転テーブルの袋保持ユニットの数が８個であり生産速度が３０袋／分の場合はガスブロー時間は食品充填の前か後の１時点の場合は約１秒、食品充填の前後の間隔をおいた２時点の場合でも約２秒に過ぎない。したがって、従来のガス置換では食品内容物の底部側のガス置換が不充分であったり、ガス置換の後で空気が袋内に再混入してしまい、袋内全体の置換率が悪く、特に充填する食品が固形食品である場合にこの傾向が著しい。   The conventional gas replacement with the inert gas is performed at one time point before or after food filling or at two time points before and after food filling in intermittent rotation of the rotary table. Is determined by the production speed, that is, how many bags are produced per unit time. For example, if the number of bag holding units on the rotary table is 8 and the production speed is 30 bags / min, is the gas blow time before food filling? In the case of the later one time point, it is about 1 second, and even in the case of two time points with an interval before and after filling the food, it is only about 2 seconds. Therefore, in the conventional gas replacement, the gas replacement at the bottom side of the food contents is insufficient, or air is mixed again in the bag after the gas replacement, the replacement rate of the entire bag is poor, especially filling This tendency is remarkable when the food to be processed is a solid food.

本発明は、上記従来の袋詰め食品の充填方法における問題点を解決し、袋詰め食品の生産効率を落とさずに不活性ガスによる置換を充分に行うことができる袋詰め食品の製造方法および装置を提供しようとするものである。   The present invention solves the problems in the above conventional bag-filled food filling method, and can provide a bag-filled food manufacturing method and apparatus capable of sufficiently performing replacement with an inert gas without reducing the production efficiency of the bag-filled food. Is to provide.

上記本発明の課題を解決する袋詰め食品の製造方法は、充填シール装置により袋詰め食品を含気包装する袋詰め食品の製造方法であって、
袋開口部近傍に設けられ、袋開口部と食品充填部との間を往復動して袋開口部から食品充填部に移送される袋内に挿入されて不活性ガスを吹き込む第１のガスブローノズルを袋の開口直後に袋内に挿入して食品の充填開始直前と直後の間の所定の時点まで不活性ガスを吹き込んだ後該第１のガスブローノズルを袋から抜き出す第１の工程と、
食品充填部近傍に設けられ、食品充填部に移送された袋内に挿入されて不活性ガスを吹き込む第２のガスブローノズルを食品の充填開始直前に袋内に挿入して食品充填開始直前と直後の間の所定の時点から食品充填終了直前と直後の間の所定の時点まで不活性ガスを吹き込んだ後該第２のガスブローノズルを袋から抜き取る第２の工程と、
食品充填部近傍に設けられ、食品充填部と袋が袋密封部に到着する前の所定位置との間を往復動して食品充填部から袋閉口部に移送される袋内に挿入されて不活性ガスを吹き込む第３のガスブローノズルを食品充填中に袋内に挿入して食品充填終了直前と直後の間の所定の時点から袋の密封前に袋開口部を閉じるまで不活性ガスを吹き込んだ後該第３のガスブローノズルを袋から抜き取る第３の工程を備える袋詰め食品の製造方法において、
該第１のガスブローノズルによる不活性ガスの吹き込みと該第２のガスブローノズルによる不活性ガスの吹き込みおよび該第２のガスブローノズルによる不活性ガスの吹き込みと該第３のガスブローノズルによる不活性ガスの吹き込みを所定時間中重複して同時に行うことを特徴とする袋詰め食品の製造方法である。

The method for producing a bag-packed food that solves the above-described problems of the present invention is a method for producing a bag-packed food in which a bag-filled food is aerated by a filling seal device,
A first gas blow that is provided in the vicinity of the bag opening, reciprocates between the bag opening and the food filling unit, and is inserted into a bag that is transferred from the bag opening to the food filling unit and blows an inert gas. A first step of inserting the nozzle into the bag immediately after opening the bag and blowing the inert gas to a predetermined time between immediately before and after filling of the food and then extracting the first gas blowing nozzle from the bag; ,
A second gas blow nozzle that is provided in the vicinity of the food filling unit and is inserted into the bag transferred to the food filling unit and blows in an inert gas is inserted into the bag immediately before the start of filling the food, and immediately before the start of filling the food. A second step of extracting the second gas blow nozzle from the bag after blowing an inert gas from a predetermined time point immediately after to a predetermined time point immediately before and after the end of filling the food;
It is provided in the vicinity of the food filling part, inserted into a bag that is reciprocated between the food filling part and a predetermined position before the bag arrives at the bag sealing part, and is transferred to the bag closing part from the food filling part. Insert a third gas blow nozzle for blowing active gas into the bag during food filling and blow in inert gas from a predetermined time immediately before and after food filling until the bag opening is closed before sealing the bag. After that, in the manufacturing method of the bag-packed food comprising the third step of extracting the third gas blow nozzle from the bag,
Blowing of inert gas by the first gas blowing nozzle, blowing of inert gas by the second gas blowing nozzle, blowing of inert gas by the second gas blowing nozzle, and by the third gas blowing nozzle A method for producing a packaged food product, wherein the blowing of inert gas is performed simultaneously for a predetermined time.

本発明の１側面においては、該第１、第２、第３の各ガスブローノズルは、袋内への挿入および袋からの抜き出しの動作時においては、不活性ガスの吹き出しが停止していることを特徴とする。   In one aspect of the present invention, the first, second, and third gas blow nozzles stop the blowing of the inert gas during the insertion into the bag and the extraction from the bag. It is characterized by that.

本発明の目的を達成する袋詰め食品充填シール装置は、回転テーブルの周方向に等間隔で設けられた複数の袋保持ユニットを備え、かつ回転テーブルを囲むようにして袋開口部、食品充填部、袋密封部が設けられ、回転テーブルを間欠的に回転させることにより各袋保持ユニットに保持された袋の開口、食品の充填および袋の密封を順次行う回転テーブル式袋詰め食品充填シール装置であって、
袋開口部近傍に設けられ、袋開口部と食品充填部との間を往復動して袋開口部から食品充填部に移送される袋内に挿入されて不活性ガスを吹き込む第１のガスブローノズルを備える第１の不活性ガスブロー装置と、
食品充填部近傍に設けられ、食品充填部に移送された袋内に挿入されて不活性ガスを吹き込む第２のガスブローノズルを備える第２の不活性ガスブロー装置と、
食品充填部近傍に設けられ、食品充填部と袋が袋密封部に到着する前の所定位置との間を往復動して食品充填部から袋閉口部に移送される袋内に挿入されて不活性ガスを吹き込む第３のガスブローノズルを備える第３の不活性ガスブロー装置
を備え、該第１のガスブローノズルによる不活性ガスの吹き込みと該第２のガスブローノズルによる不活性ガスの吹き込みおよび該第２のガスブローノズルによる不活性ガスの吹き込みと該第３のガスブローノズルによる不活性ガスの吹き込みを所定時間中重複して同時に行うことを特徴とする。 A bag-filled food filling seal device that achieves the object of the present invention includes a plurality of bag holding units provided at equal intervals in the circumferential direction of a rotary table, and includes a bag opening, a food filling portion, and a bag so as to surround the rotary table. A rotary table type bag-filling food filling and sealing device which is provided with a sealing portion and sequentially performs opening of bags held by each bag holding unit, filling of food and sealing of bags by rotating the rotary table intermittently. ,
A first gas blow that is provided in the vicinity of the bag opening, reciprocates between the bag opening and the food filling unit, and is inserted into a bag that is transferred from the bag opening to the food filling unit and blows an inert gas. A first inert gas blowing device comprising a nozzle;
A second inert gas blow device provided with a second gas blow nozzle that is provided in the vicinity of the food filling portion and is inserted into a bag transferred to the food filling portion and blows an inert gas;
It is provided in the vicinity of the food filling part, inserted into a bag that is reciprocated between the food filling part and a predetermined position before the bag arrives at the bag sealing part, and is transferred to the bag closing part from the food filling part. A third inert gas blowing device including a third gas blowing nozzle for blowing an active gas, and blowing an inert gas by the first gas blowing nozzle, blowing an inert gas by the second gas blowing nozzle, and It is characterized in that the inert gas blowing by the second gas blow nozzle and the inert gas blowing by the third gas blow nozzle are performed simultaneously for a predetermined time .

本発明の方法によれば、第１の工程、第２の工程および第３の工程においてガスブローを切れ目無く行うことにより、袋の開口後食品の充填前から袋の密封直前まで袋内に不活性ガスを実質的に連続して吹込むので、袋詰め食品を従来と同一の生産速度で生産してもガスブローの時間を従来よりも数倍長くとることができ、しかもガスブローを途中で中断することがないので、ガスブロー中断の間に空気が袋に再混入することもなく、生産効率を落とさずに充分なガス置換を達成することができる。これによって、従来のガス置換方法ではガス置換後の残存酸素濃度が数％であったものが、本発明の方法によれば残存酸素濃度０．５％以下、残存酸素量１．０ｍｌ以下に減少させることができる。
また、第１の工程と第２の工程および第２の工程と第３の工程を所定時間の間重複して同時に行うことにより袋内へのガスブローの連続性を一層完全に行うことができる。 According to the method of the present invention, by performing gas blowing seamlessly in the first step, the second step, and the third step, it is inert in the bag from the time of opening the bag before filling the food to immediately before sealing the bag. Since the gas is blown substantially continuously, the gas blowing time can be increased several times longer than before even if the packed food is produced at the same production speed as before, and the gas blowing is interrupted halfway. Therefore, air is not mixed again into the bag during the gas blow interruption, and sufficient gas replacement can be achieved without deteriorating the production efficiency. As a result, in the conventional gas replacement method, the residual oxygen concentration after gas replacement was several percent, but according to the method of the present invention, the residual oxygen concentration is reduced to 0.5% or less and the residual oxygen amount is reduced to 1.0 ml or less. Can be made.
Further, the continuity of gas blowing into the bag can be more completely performed by simultaneously performing the first step, the second step, the second step, and the third step simultaneously for a predetermined time.

また、本発明の袋詰め充填シール装置によれば、第１の不活性ガスブロー装置、第２の不活性ガスブロー装置および第３の不活性ガスブロー装置の３段階の不活性ガスブロー装置を設け、第１の不活性ガスブロー装置および第３の不活性ガスブロー装置のガスブローノズルを往復動させることにより、ガスブローを従来の装置に比べて長い時間継続して行うことが可能となり、生産効率を落とさずに充分なガス置換を達成することができるとともに、回転テーブル上のすべての袋保持ユニットにそれぞれガスブローノズルを設置する必要がないので、その分設備コストを低下させることができる。また、第１のガスブローノズルによる不活性ガスの吹き込みと第２のガスブローノズルによる不活性ガスの吹き込みおよび第２のガスブローノズルによる不活性ガスの吹き込みと第３のガスブローノズルによる不活性ガスの吹き込みを所定時間中重複して同時に行うことにより、袋内へのガスブローの連続性を一層完全に行うことができる。 Further, according to the bag filling and sealing apparatus of the present invention, the three-stage inert gas blowing device including the first inert gas blowing device, the second inert gas blowing device, and the third inert gas blowing device is provided. By reciprocating the gas blow nozzles of the inert gas blow device and the third inert gas blow device, it is possible to perform gas blow continuously for a longer time than the conventional device, and it is sufficient without reducing the production efficiency. Gas replacement can be achieved, and since it is not necessary to install gas blow nozzles in all the bag holding units on the rotary table, the equipment cost can be reduced accordingly. Further, the inert gas is blown by the first gas blow nozzle, the inert gas is blown by the second gas blow nozzle, the inert gas is blown by the second gas blow nozzle, and the inert gas is blown by the third gas blow nozzle. By performing the gas blowing simultaneously for a predetermined time, the continuity of the gas blowing into the bag can be performed more completely.

以下添付図面を参照して本発明の実施の形態について説明する。
図１は本発明の充填シール装置を模式的に示す平面図、図２〜図１２は不活性ガスブローの各工程における同装置の動作を順を追って説明するための説明図である。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a plan view schematically showing a filling and sealing apparatus of the present invention, and FIGS. 2 to 12 are explanatory views for explaining the operation of the apparatus in each step of inert gas blowing step by step.

この充填シール装置１は回転テーブル式袋詰め充填シール装置であって、図１中矢印Ｑ方向に間欠的に回転する回転テーブル２の周方向に等間隔で８個の袋保持ユニット３が回転テーブル２の周縁部に固定されている。これら袋保持ユニット３はそれぞれ一対の袋把持アーム４を備えており、これら袋把持アーム４の開閉動作可能な爪５、５により袋６の閉じられた両側部を把持するように構成されている。また一対の袋把持アーム４、４は相互に接近した接近位置と相互に離間した離間位置の２位置の間に移動することができる機構を備えている。   This filling and sealing device 1 is a rotary table type bag filling and sealing device, and eight bag holding units 3 are arranged at equal intervals in the circumferential direction of the rotary table 2 that rotates intermittently in the direction of arrow Q in FIG. 2 is fixed to the peripheral edge. Each of the bag holding units 3 includes a pair of bag holding arms 4 and is configured to hold both sides of the bag 6 closed by claws 5 and 5 that can open and close the bag holding arms 4. . Further, the pair of bag gripping arms 4 and 4 includes a mechanism capable of moving between two positions, ie, an approach position close to each other and a spaced position spaced apart from each other.

回転テーブル２を囲むようにして、図示しない袋供給部から袋６を受領し袋保持ユニット３により袋６をその上端部６ａが閉じた状態で把持する袋受領部I、袋６に所定の印字を行う印字部II、一対の袋把持アーム４、４を接近位置すなわち幅が狭まる方向に移動させることにより把持した袋６の上端部６ａを開口するとともに、２本の開口サポートアーム１５、１５により袋６を回転テーブル２の半径方向に拡開して保持する（図３の状態）袋開口部III、開口した袋６に食品（例えば固形食品）を充填する第１食品充填部IV（本発明における食品充填部を構成する）、この袋６からガスブローノズルを抜く行程部V、袋６を閉じてシールするために第１のヒートシールを行う第１密封部VI（本発明における密封部を構成する）、最終ヒートシールを行う第２密封部VIIおよびシールされた袋６のシール部を冷却プレスにより冷却した後袋６を排出コンベヤー７に排出する冷却・排出部VIIIが袋保持ユニット３の配置間隔と同一の等間隔で固定的に設けられている。回転テーブル２は、袋保持ユニット３が各部I〜VIIIでそれぞれ所定の時間（例えば１秒間）とどまりその間に所定の作業が行われた後に次の工程を行う部に移動するように間欠的な回転運動を行う。   A bag 6 is received from a bag supply unit (not shown) so as to surround the rotary table 2, and the bag holding unit 3 holds the bag 6 with its upper end 6a closed, and performs predetermined printing on the bag 6. The upper end 6a of the gripped bag 6 is opened by moving the printing unit II and the pair of bag gripping arms 4 and 4 in the approaching position, that is, in the direction in which the width is narrowed. Is opened and held in the radial direction of the turntable 2 (state shown in FIG. 3), and the first food filling portion IV (the food in the present invention) is filled with food (for example, solid food) in the bag opening III and the opened bag 6. A filling portion), a process portion V for removing the gas blow nozzle from the bag 6, and a first sealing portion VI for performing a first heat seal to close and seal the bag 6 (which constitutes the sealing portion in the present invention) ) Final heat sea The second sealing part VII and the sealing part of the sealed bag 6 are cooled by a cooling press, and then the cooling and discharging part VIII for discharging the bag 6 to the discharge conveyor 7 is the same interval as the arrangement interval of the bag holding unit 3 It is fixedly provided. The turntable 2 is intermittently rotated so that the bag holding unit 3 stays at each part I to VIII for a predetermined time (for example, 1 second) and then moves to a part for performing the next process after a predetermined work is performed. Do exercise.

袋開口部IIIには、袋開口部IIIと第１食品充填部IVとの間を矢印Ａ−Ａ方向に往復動して袋開口部IIIから第１食品充填部IVに移送される袋６内に挿入されて不活性ガスを吹き込む第１のガスブローノズル９を備える第１の不活性ガスブロー装置８が設けられている。   In the bag opening III, the bag 6 is transferred to the first food filling unit IV from the bag opening III by reciprocating in the direction of the arrow AA between the bag opening III and the first food filling unit IV. There is provided a first inert gas blowing device 8 provided with a first gas blowing nozzle 9 which is inserted into the nozzle and blows in an inert gas.

ガスブローノズル９は、開口サポートアーム１５、１５の中間に配置され、開口サポートアーム１５、１５が装着された回転アーム１０に固定されたエアシリンダー装置１１に取付けられエアシリンダー装置１１により上下動が可能である。回転アーム１０は袋開口部IIIと第１食品充填部IVの間を回転軸２１の周りに回転往復動する。   The gas blow nozzle 9 is disposed in the middle of the opening support arms 15 and 15 and is attached to the air cylinder device 11 fixed to the rotary arm 10 to which the opening support arms 15 and 15 are attached, and is moved up and down by the air cylinder device 11. Is possible. The rotary arm 10 reciprocates around the rotary shaft 21 between the bag opening III and the first food filling part IV.

開口サポートアーム１５、１５は回転アーム１０に取付けられた回動軸１２、１２の枢着された回動アーム１３、１３の先端に固定されており、回動アーム１３、１３の回動により袋６内に出入りすることができ、袋６内に挿入されて袋６を回転テーブル２の半径方向に拡開する。なお、開口サポートアーム１５、１５を、管状部材を用いて不活性ガスの吹き出しが可能なように構成し、ガスブローノズルとの兼用型にすることもできる。   The opening support arms 15 and 15 are fixed to the distal ends of pivoting arms 13 and 13 pivotally attached to pivoting shafts 12 and 12 attached to the rotating arm 10. 6 is inserted into the bag 6 and the bag 6 is expanded in the radial direction of the rotary table 2. In addition, the opening support arms 15 and 15 can be configured so as to be able to blow out an inert gas using a tubular member, and can also be used as a gas blow nozzle.

第１食品充填部IVには、第１食品充填部IVに移送された袋６内に挿入されて不活性ガスを吹き込む第２のガスブローノズル１６、１６を備える第２の不活性ガスブロー装置１７が設けられている。ガスブローノズル１６、１６は図５から明らかなように食品を袋６内に充填するホッパー１４の両側に固定されており、ホッパー１４の上下動につれて上下動する。   The first food filling unit IV includes a second inert gas blowing device 17 including second gas blowing nozzles 16 and 16 which are inserted into the bag 6 transferred to the first food filling unit IV and blow in inert gas. Is provided. As apparent from FIG. 5, the gas blow nozzles 16, 16 are fixed to both sides of the hopper 14 that fills the bag 6 with food, and move up and down as the hopper 14 moves up and down.

また第１食品充填部IVには、第１食品充填部IVとガスブローノズルを袋から抜く行程部Vとの間を往復動して第１食品充填部IVから第２食品充填部Vに移送される袋６内に挿入されて不活性ガスを吹き込む第３のガスブローノズル１９を備える第３の不活性ガスブロー装置１８が設けられている。   In addition, the first food filling unit IV is reciprocated between the first food filling unit IV and the stroke unit V for removing the gas blow nozzle from the bag and transferred from the first food filling unit IV to the second food filling unit V. There is provided a third inert gas blowing device 18 provided with a third gas blowing nozzle 19 which is inserted into the bag 6 and blows inert gas.

第３のガスブロー装置１８は回転軸２１の周りに食品充填部IVとガスブローノズルを袋から抜く行程部Vの間を矢印Ｂ−Ｂ方向に往復動する回転アーム２０を備え、この回転アーム２０に取付けられたエアシリンダー装置３０にガスブローノズル１９が取付けられている。ガスブローノズル１９はエアシリンダー装置２３によって上下動することができる。   The third gas blowing device 18 is provided with a rotating arm 20 that reciprocates in the direction of arrow BB between the food filling portion IV and the stroke portion V for removing the gas blowing nozzle from the bag around the rotating shaft 21. A gas blow nozzle 19 is attached to an air cylinder device 30 attached to the cylinder. The gas blow nozzle 19 can be moved up and down by an air cylinder device 23.

なお、各ガスブローノズル９、１６、１９は図示しない不活性ガス供給源および開閉弁に接続されている。   Each gas blow nozzle 9, 16, 19 is connected to an inert gas supply source and an on-off valve (not shown).

以下この装置の動作について図２〜図１２を参照して説明する。
図示しない袋供給部から供給される袋６は、図２に示すように、袋受領部Iにおいて停止状態にある袋保持ユニット３の離間位置にある袋把持アーム４，４の爪５、５により袋６の上端部６ａが閉じた状態で把持される。次いで回転テーブル２が回転し、袋６が印字部IIを経て袋開口部IIの位置に至って停止すると、図３に示すように、袋把持アーム４、４は接近位置に移動して袋６の上端部６ａを開口するとともに、２本の開口サポートアーム１５、１５が袋６内に挿入されて袋６を回転テーブル２の半径方向に拡開する。 The operation of this apparatus will be described below with reference to FIGS.
As shown in FIG. 2, the bag 6 supplied from the bag supply unit (not shown) is received by the claws 5, 5 of the bag gripping arms 4, 4 at the separation position of the bag holding unit 3 that is stopped in the bag receiving unit I. The bag 6 is gripped with the upper end 6a closed. Next, when the rotary table 2 is rotated and the bag 6 reaches the position of the bag opening II through the printing unit II and stops, the bag gripping arms 4 and 4 move to the approaching position as shown in FIG. While opening the upper end 6 a, two opening support arms 15, 15 are inserted into the bag 6 to expand the bag 6 in the radial direction of the turntable 2.

その直後に、第１の不活性ガスブロー装置８が作動してエアシリンダー装置１１の動作によりガスブローノズル９が降下し、図４に示すように袋６内に挿入され、不活性ガスの袋６内への吹き込みが開始される。   Immediately thereafter, the first inert gas blowing device 8 is actuated and the gas blowing nozzle 9 is lowered by the operation of the air cylinder device 11 and inserted into the bag 6 as shown in FIG. Blowing in begins.

次いで袋６内にガスブローノズル６が挿入され不活性ガスが袋６内に吹き込まれた状態を維持したまま回転テーブル２が回転して袋６が第１食品充填部IVに至ると回転テーブル２は停止し、図５に示すように、食品充填用のホッパー１４が袋６内に下降して袋６内に食品（たとえば固形食品）が充填される。また食品の充填開始と同時に第２の不活性ガスブロー装置１７が動作し、ガスブローノズル１６、１６から袋６内への不活性ガスの吹き込みが開始される。一方ガスブローノズル９は不活性ガスの吹き込みを食品の充填開始直後まで継続してから吹き込みを停止する。したがって、食品の充填開始からその直後にいたる期間両ガスブローノズル９、１６は重複して不活性ガスの吹き込みを行い、これによって不活性ガスの連続的な吹き込みを保証する。   Next, when the gas blow nozzle 6 is inserted into the bag 6 and the state in which the inert gas is blown into the bag 6 is maintained, the rotary table 2 rotates and the bag 6 reaches the first food filling part IV. As shown in FIG. 5, the food filling hopper 14 descends into the bag 6 and the bag 6 is filled with food (for example, solid food). The second inert gas blowing device 17 operates simultaneously with the start of filling of the food, and the blowing of inert gas from the gas blowing nozzles 16 and 16 into the bag 6 is started. On the other hand, the gas blow nozzle 9 stops the blowing after continuing the blowing of the inert gas until immediately after the start of the filling of the food. Accordingly, both the gas blow nozzles 9 and 16 perform the insufflation of the inert gas in a period from the start of the filling of the food to immediately after that, thereby guaranteeing continuous insufflation of the inert gas.

ガスブローノズル９は、不活性ガスの吹き込みを終了すると、図６に示すように、ホッパー１４による食品充填が行われている間にエアシリンダー装置１１の作動により上昇して袋６から離脱する。また開口サポートアーム１５、１５も袋６内から離脱する。   When the blowing of the inert gas is completed, the gas blow nozzle 9 is lifted by the operation of the air cylinder device 11 and is detached from the bag 6 while the food is being filled by the hopper 14 as shown in FIG. The opening support arms 15 and 15 are also detached from the bag 6.

ガスブローノズル９の離脱と同時またはその直後に、図７に示すように、第３の不活性ガスブロー装置１８が作動し、エアシリンダー装置３０の動作によりガスブローノズル１９が袋６内に降下する。ガスブローノズル１６、１６はホッパー１４による食品充填終了と同時に不活性ガスの吹き込みを停止する。一方ガスブローノズル１９は食品充填終了の直前に不活性ガスの吹き込みを開始し、これによって不活性ガスの連続的な吹き込みを保証する。   At the same time or immediately after the gas blow nozzle 9 is detached, as shown in FIG. 7, the third inert gas blow device 18 is operated, and the gas blow nozzle 19 is lowered into the bag 6 by the operation of the air cylinder device 30. . The gas blow nozzles 16, 16 stop the blowing of the inert gas simultaneously with the completion of the food filling by the hopper 14. On the other hand, the gas blow nozzle 19 starts the blowing of the inert gas immediately before the end of the filling of the food, thereby ensuring the continuous blowing of the inert gas.

食品充填が終了すると、ホッパー１４は図８に示すように上昇し、次いで回転テーブル２が回転して袋６はガスブローノズルを袋から抜く行程部Vに向かう。この間ガスブローノズル９は、図９に示すように、袋６内に挿入さたままであり、ガスブローが継続されている。   When the filling of the food is completed, the hopper 14 is lifted as shown in FIG. During this time, the gas blow nozzle 9 remains inserted into the bag 6 as shown in FIG. 9, and the gas blow is continued.

回転テーブル２がさらに回転して袋６が第２食品充填部Vに至ると回転テーブル２の回転と共に１０に示すように、袋把持アーム４、４が離間位置に開いて袋開口部６ａが閉じる。この時点ではガスブローノズル１９からの不活性ガスの吹き込みはまだ継続している。   When the rotary table 2 further rotates and the bag 6 reaches the second food filling part V, the bag holding arms 4 and 4 are opened to the separated position and the bag opening 6a is closed as indicated by 10 along with the rotation of the rotary table 2. . At this time, the blowing of the inert gas from the gas blow nozzle 19 is still continued.

次に、袋６がガスブローノズルを袋から抜く行程部Vに停止中に、図１１に示すように、ガスブローノズル１９からの不活性ガスの吹き込みを停止し、ガスブローノズル１９を袋６から引き抜く。   Next, while the bag 6 is stopped at the stroke portion V where the gas blow nozzle is removed from the bag, as shown in FIG. 11, the blowing of the inert gas from the gas blow nozzle 19 is stopped, and the gas blow nozzle 19 is moved to the bag 6. Pull out from.

次いで回転テーブル２が回転して袋６が図１２に示すように袋上端部６ａが閉じた状態で第１密封部VIに至ると回転テーブル２は停止し、袋６の上端部６ａはヒートプレス２３（図１）に挟持されて第１のヒートシールが行われる。次いで袋把持アーム４、４が離間位置にあるままの状態で回転テーブル２が回転して袋６が第２密封部VIIに至ると回転テーブル２は停止し、袋６はヒートプレス２４に挟持されて第２のヒートシールが行われる。さらに袋把持アーム４、４が離間位置にあるままの状態で回転テーブル２が回転して袋６が冷却・排出部VIIIに至ると回転テーブル２は停止し、袋６の上端部６ａは冷却プレス２５に挟持され、袋６の冷却が行われた後袋６は製品として排出コンベヤー７に排出される。袋６の排出を終えた袋把持アーム４、４は離間位置を維持したまま次の回転テーブル２の回転により袋受領部Iに送られ次回の袋受領に備えて待機する。   Next, when the rotary table 2 rotates and the bag 6 reaches the first sealing portion VI with the bag upper end 6a closed as shown in FIG. 12, the rotary table 2 stops and the upper end 6a of the bag 6 is heated. 23 (FIG. 1), the first heat sealing is performed. Next, when the rotary table 2 rotates and the bag 6 reaches the second sealing portion VII while the bag gripping arms 4 and 4 remain in the separated position, the rotary table 2 stops and the bag 6 is sandwiched between the heat presses 24. Then, the second heat seal is performed. Further, when the rotary table 2 rotates and the bag 6 reaches the cooling / discharging unit VIII while the bag gripping arms 4 and 4 remain in the separated position, the rotary table 2 stops, and the upper end 6a of the bag 6 is the cooling press. After being sandwiched by 25 and cooling the bag 6, the bag 6 is discharged as a product onto the discharge conveyor 7. The bag holding arms 4 and 4 that have finished discharging the bag 6 are sent to the bag receiving unit I by the next rotation of the rotary table 2 while maintaining the separated position, and wait for the next bag reception.

なお、各ブローノズル９、１６、１９は、袋内への挿入および袋からの抜き出しの動作時においては、不活性ガスの吹き出しが停止するようにしてもよい。これにより、ノズル動作に伴う雰囲気の袋内への流入を有効に低減することが可能となる。   The blow nozzles 9, 16, and 19 may be configured such that the blowing of the inert gas stops during the insertion into the bag and the extraction from the bag. This makes it possible to effectively reduce the inflow of the atmosphere into the bag accompanying the nozzle operation.

上記実施形態において、袋開口部IIIと第１食品充填部IVの間のガスブローノズル９の往復動と第１の食品充填部IVとガスブローノズルを袋から抜く行程部Vの間のガスブローノズル１９の往復動は同期して行われる。すなわち、第１の食品充填部IVにおいてガスブローノズル９が袋６から抜き取られる（図６の状態）と同時にガスブローノズルを袋から抜く行程部Vにおいてガスブローノズル１９が袋６から抜き取られ(図１１の状態)、抜き取られたガスブローノズル９が袋開口部IIIに戻り次の不活性ガス吹き込みに備えて待機する動きに同期して抜き取られたガスブローノズル１９が第１食品充填部IVに戻り次の不活性ガスの吹き込みに備えて待機する。   In the above embodiment, the gas blow nozzle 9 reciprocates between the bag opening III and the first food filling portion IV, and the gas blow between the first food filling portion IV and the stroke portion V for removing the gas blow nozzle from the bag. The reciprocation of the nozzle 19 is performed synchronously. That is, at the first food filling part IV, the gas blow nozzle 9 is extracted from the bag 6 (state of FIG. 6), and at the same time, the gas blow nozzle 19 is extracted from the bag 6 at the process part V where the gas blow nozzle is extracted from the bag ( The state of FIG. 11), the extracted gas blow nozzle 9 returns to the bag opening III, and the gas blow nozzle 19 extracted in synchronism with the standby operation in preparation for the next blowing of the inert gas is the first food filling portion IV. Return to and wait for the next blowing of inert gas.

上記実施形態においては、ガスブローノズル１９は第１食品の充填部IVとガスブローノズルを袋から抜く行程部Vの間を往復動して不活性ガスの吹き込みを行うが、ガスブローノズル１９の行程を延長して、第１の食品充填部IVとガスブローノズルを袋から抜く行程部Vを越えて第１密封部VIに到着する直前の位置の間を往復するようにして不活性ガスの吹き込みを行うように構成してもよい。   In the above embodiment, the gas blow nozzle 19 reciprocates between the filling portion IV of the first food and the stroke portion V that removes the gas blow nozzle from the bag to blow the inert gas. Extending the stroke, the first food filling portion IV and the gas blow nozzle are removed from the bag. The stroke of the inert gas is reciprocated between the position just before reaching the first sealing portion VI beyond the stroke portion V. You may comprise so that blowing may be performed.

上記装置において、ガスブローノズル９、１９の上下動は空気圧のほか油圧、電動など種々の方法で行うことができる。ガスブローノズルの数も１本に限らず、使用目的に応じ複数本でもよい。   In the above apparatus, the gas blow nozzles 9 and 19 can be moved up and down by various methods other than air pressure, such as hydraulic pressure and electric power. The number of gas blow nozzles is not limited to one, and a plurality of gas blow nozzles may be used depending on the purpose of use.

上記実施形態においては、回転テーブル２に８個の作業部I〜VIIIが設けられているが、作業部の数はこれに限らない。また、本発明の方法は、回転テーブル式袋詰め充填シール装置に限らず、直線形の袋詰め充填シール装置にも適用することができる。   In the above-described embodiment, eight working units I to VIII are provided on the rotary table 2, but the number of working units is not limited thereto. The method of the present invention can be applied not only to a rotary table type bag filling and sealing apparatus but also to a linear bag filling and sealing apparatus.

本発明にかかる方法の実施に使用する充填シール装置の１実施形態を示す平面図である。It is a top view which shows one Embodiment of the filling sealing device used for implementation of the method concerning this invention. 袋の供給動作を示す斜視図である。It is a perspective view which shows the supply operation | movement of a bag. 袋を開口した状態を示す斜視図である。It is a perspective view which shows the state which opened the bag. 袋内に第１のガスブローノズルによる不活性ガスの吹き込みを開始した状態を示す斜視図である。It is a perspective view which shows the state which started blowing inactive gas by the 1st gas blow nozzle in a bag. 食品充填部において第２のガスブローノズルを袋内に挿入する動作を示す斜視図である。It is a perspective view which shows the operation | movement which inserts a 2nd gas blow nozzle in a bag in a food filling part. 食品充填部において第１のガスブローノズルを抜き取る動作を示す斜視図である。It is a perspective view which shows the operation | movement which extracts the 1st gas blow nozzle in a food filling part. 食品充填部において第３のガスブローノズルを袋内に挿入する動作を示す斜視図である。It is a perspective view which shows the operation | movement which inserts the 3rd gas blow nozzle in a bag in a food filling part. 食品充填部において第２のガスブローノズルを引き抜く動作を示す斜視図である。It is a perspective view which shows the operation | movement which pulls out the 2nd gas blow nozzle in a food filling part. 第３のガスブローノズルによる不活性ガスの吹き込み動作を示す斜視図である。It is a perspective view which shows the blowing operation of the inert gas by the 3rd gas blow nozzle. 袋を閉じる動作を示す斜視図である。It is a perspective view which shows the operation | movement which closes a bag. 第３のガスブローノズルを引き抜く動作を示す斜視図である。It is a perspective view which shows the operation | movement which pulls out the 3rd gas blow nozzle. 不活性ガスの吹き込みを終了し袋が密封部に向かう状態を示す斜視図である。It is a perspective view which shows the state which complete | finished blowing of inert gas and a bag faces a sealing part.

符号の説明Explanation of symbols

１ 袋詰め充填シール装置
２ 回転テーブル
３ 袋保持ユニット
４ 袋把持アーム
６ 袋
８ 第１の不活性ガスブロー装置
９、１６、１９ ガスブローノズル
１７ 第２の不活性ガスブロー装置
１８ 第３の不活性ガスブロー装置

DESCRIPTION OF SYMBOLS 1 Bag filling filling sealing apparatus 2 Rotary table 3 Bag holding unit 4 Bag holding arm 6 Bag 8 1st inert gas blower 9, 16, 19 Gas blow nozzle 17 2nd inert gas blower 18 3rd inert gas blow apparatus

Claims (3)

充填シール装置により袋詰め食品を含気包装する袋詰め食品の製造方法であって、
袋開口部近傍に設けられ、袋開口部と食品充填部との間を往復動して袋開口部から食品充填部に移送される袋内に挿入されて不活性ガスを吹き込む第１のガスブローノズルを袋の開口直後に袋内に挿入して食品の充填開始直前と直後の間の所定の時点まで不活性ガスを吹き込んだ後該第１のガスブローノズルを袋から抜き出す第１の工程と、
食品充填部近傍に設けられ、食品充填部に移送された袋内に挿入されて不活性ガスを吹き込む第２のガスブローノズルを食品の充填開始直前に袋内に挿入して食品充填開始直前と直後の間の所定の時点から食品充填終了直前と直後の間の所定の時点まで不活性ガスを吹き込んだ後該第２のガスブローノズルを袋から抜き取る第２の工程と、
食品充填部近傍に設けられ、食品充填部と袋が袋密封部に到着する前の所定位置との間を往復動して食品充填部から袋閉口部に移送される袋内に挿入されて不活性ガスを吹き込む第３のガスブローノズルを食品充填中に袋内に挿入して食品充填終了直前と直後の間の所定の時点から袋の密封前に袋開口部を閉じるまで不活性ガスを吹き込んだ後該第３のガスブローノズルを袋から抜き取る第３の工程を備える袋詰め食品の製造方法において、
該第１のガスブローノズルによる不活性ガスの吹き込みと該第２のガスブローノズルによる不活性ガスの吹き込みおよび該第２のガスブローノズルによる不活性ガスの吹き込みと該第３のガスブローノズルによる不活性ガスの吹き込みを所定時間中重複して同時に行うことを特徴とする袋詰め食品の製造方法。 A method for producing a bag-packed food comprising aeration-packaging of the bag-packed food with a filling seal device,
A first gas blow that is provided in the vicinity of the bag opening, reciprocates between the bag opening and the food filling unit, and is inserted into a bag that is transferred from the bag opening to the food filling unit and blows an inert gas. A first step of inserting the nozzle into the bag immediately after opening the bag and blowing the inert gas to a predetermined time between immediately before and after filling of the food and then extracting the first gas blowing nozzle from the bag; ,
A second gas blow nozzle that is provided in the vicinity of the food filling unit and is inserted into the bag transferred to the food filling unit and blows in an inert gas is inserted into the bag immediately before the start of filling the food, and immediately before the start of filling the food. A second step of extracting the second gas blow nozzle from the bag after blowing an inert gas from a predetermined time point immediately after to a predetermined time point immediately before and after the end of filling the food;
It is provided in the vicinity of the food filling part, inserted into a bag that is reciprocated between the food filling part and a predetermined position before the bag arrives at the bag sealing part, and is transferred to the bag closing part from the food filling part. Insert a third gas blow nozzle for blowing active gas into the bag during food filling and blow in inert gas from a predetermined time immediately before and after food filling until the bag opening is closed before sealing the bag. After that, in the manufacturing method of the bag-packed food comprising the third step of extracting the third gas blow nozzle from the bag,
Blowing of inert gas by the first gas blowing nozzle, blowing of inert gas by the second gas blowing nozzle, blowing of inert gas by the second gas blowing nozzle, and by the third gas blowing nozzle A method for producing a bag-packed food, wherein the inert gas is blown simultaneously for a predetermined time. 該第１、第２、第３の各ガスブローノズルは、袋内への挿入および袋からの抜き出しの動作時においては、不活性ガスの吹き出しが停止していることを特徴とする請求項１に記載の袋詰め食品の製造方法。   2. The first, second, and third gas blow nozzles are characterized in that the blowing of inert gas is stopped during the operation of insertion into the bag and extraction from the bag. The manufacturing method of the bag-packed food as described in. 回転テーブルの周方向に等間隔で設けられた複数の袋保持ユニットを備え、かつ回転テーブルを囲むようにして袋開口部、食品充填部、袋密封部が設けられ、回転テーブルを間欠的に回転させることにより各袋保持ユニットに保持された袋の開口、食品の充填および袋の密封を順次行う回転テーブル式袋詰め食品充填シール装置であって、
袋開口部近傍に設けられ、袋開口部と食品充填部との間を往復動して袋開口部から食品充填部に移送される袋内に挿入されて不活性ガスを吹き込む第１のガスブローノズルを備える第１の不活性ガスブロー装置と、
食品充填部近傍に設けられ、食品充填部に移送された袋内に挿入されて不活性ガスを吹き込む第２のガスブローノズルを備える第２の不活性ガスブロー装置と、
食品充填部近傍に設けられ、食品充填部と袋が袋密封部に到着する前の所定位置との間を往復動して食品充填部から袋閉口部に移送される袋内に挿入されて不活性ガスを吹き込む第３のガスブローノズルを備える第３の不活性ガスブロー装置
を備え、該第１のガスブローノズルによる不活性ガスの吹き込みと該第２のガスブローノズルによる不活性ガスの吹き込みおよび該第２のガスブローノズルによる不活性ガスの吹き込みと該第３のガスブローノズルによる不活性ガスの吹き込みを所定時間中重複して同時に行うことを特徴とする袋詰め充填シール装置。 Provided with a plurality of bag holding units provided at equal intervals in the circumferential direction of the turntable, and provided with a bag opening, a food filling portion, and a bag sealing portion so as to surround the turntable, and the turntable is rotated intermittently A rotary table type bag-filling food filling sealing device that sequentially performs opening of the bags held by each bag holding unit, filling of food and sealing of the bags,
A first gas blow that is provided in the vicinity of the bag opening, reciprocates between the bag opening and the food filling unit, and is inserted into a bag that is transferred from the bag opening to the food filling unit and blows an inert gas. A first inert gas blowing device comprising a nozzle;
A second inert gas blow device provided with a second gas blow nozzle that is provided in the vicinity of the food filling portion and is inserted into a bag transferred to the food filling portion and blows an inert gas;
It is provided in the vicinity of the food filling part, inserted into a bag that is reciprocated between the food filling part and a predetermined position before the bag arrives at the bag sealing part, and is transferred to the bag closing part from the food filling part. A third inert gas blowing device including a third gas blowing nozzle for blowing an active gas, and blowing an inert gas by the first gas blowing nozzle, blowing an inert gas by the second gas blowing nozzle, and A bag-filling-seal device characterized in that the blowing of the inert gas by the second gas blow nozzle and the blowing of the inert gas by the third gas blow nozzle are performed simultaneously for a predetermined time.
JP2004072407A 2004-03-15 2004-03-15 Manufacturing method of bagging food and sealing device for bagging filling Expired - Lifetime JP4453408B2 (en)

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