JP2003291909A - Filling/packaging method of item to be packaged - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a filling/packaging method for an item to be packaged which makes it possible to structure a work mechanical part simple and to fill and package voluminous or a plural kinds of items to be packaged in one packaging bag without lowering the work efficiency or without overflowing the item. <P>SOLUTION: A film 6 is continuously supplied to a packaging machine 1 for producing continuous top end open packaging bags 2 where a unit number of packaging bags 3 are connected. Each bag 3 of the bags 2 goes through processes for its top end to be opened, an item to be filled to be filled and is top end opening to be sealed while each packaging bag 2 is intermittently transferred in a direction crossing at right angles with the continuing direction of the bags 3 in a mutually parallel posture. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for filling and packaging an object to be packaged, which consistently performs the steps from film bag making to filling and packaging of the object to be packaged. It is possible to secure a long working time for each of the packaging bags by combining the continuous feeding of the packaging bags with the intermittent feeding of the continuous packaging bags, while simplifying the structure of the working mechanism section. It proposes the technology that can do.

[0002]

2. Description of the Related Art For example, when a packaging bag is filled with an object to be packaged such as a liquid in an amount exceeding 500 ml, the packaging bag to be continuously manufactured is formed into an arc shape, a drop winding shape, or another planar shape. It has been proposed to sequentially perform the required work on the packaging bag by using a working mechanism section that follows and displaces the respective packaging bag while continuously traveling.

[0003]

However, in this proposed technique, it is necessary to perform various operations on the continuously traveling packaging bag, and therefore all the working mechanism parts are continuously moved in synchronization with the packaging bag. In addition to complicating the structure of the working mechanism, slowing down the moving speed of the packaging bag in order to secure a long filling time when filling a large amount of objects to be packaged in each packaging bag. On the contrary, if the moving speed of the packaging bag is increased in order to improve the work efficiency, the packaging object may overflow or spill due to the centrifugal force acting on the packaging object in the moving bag. There was a problem of high fear.

The present invention solves the above problems of the proposed technique, and its purpose is to perform various required operations on a packaging bag which is in a stopped state, thereby providing a working mechanism. The structure of the parts can be simplified, and a large amount of objects to be packaged or a plurality of types of objects to be packaged can be packaged in one packaging bag without the risk of lowering work efficiency and overflow of the objects to be packaged. Another object of the present invention is to provide a method for filling and packaging an object to be packaged, which can be filled and packaged inside.

[0005]

According to the method of filling and packaging an object to be packaged according to the present invention, a single-layer or laminated film is continuously supplied to a bag-making apparatus so that a unit number of packaging bags are continuous in the lateral direction. While manufacturing continuous packaging bags with open tops,
Respective continuous packaging bags, in their parallel arrangement state, in the direction intersecting the continuous direction of the packaging bag, for example, in the direction orthogonal to
While intermittently transferring while maintaining mutual parallel posture,
Open the top opening of each continuous packaging bag,
The steps of filling the object to be packaged and sealing the upper opening are sequentially performed.

According to this method, in the intermittent transfer of continuous packaging bags, each continuous packaging bag can be maintained in a stopped state until one continuous packaging bag is manufactured by the bag manufacturing apparatus. Also, since this stop time can be adjusted by selecting the unit number of packaging bags, this stop is performed for each operation such as opening the opening of the packaging bag, filling the packaged object, and sealing the opening of the packaging bag. By carrying out at the station, it is possible to simplify the structure of each work mechanism without needing to move the work mechanism, and moreover, in a required stop time, a large amount of packaged objects can be packaged. It is possible to carry out each operation including the filling of all of the continuous packaging bags at the same time reliably and efficiently, and moreover, without fear of overflow of the articles to be packaged.

In addition, it is possible here to provide a plurality of filling stations for the articles to be packed next to one another without having to increase the overall complexity of the device or increase the size thereof, in which case a large number of Since it becomes possible to divide and fill the article to be packaged at each of a plurality of stations, it is possible to further shorten the stop time of the continuous packaging bag and further improve the work efficiency. When a plurality of filling stations are provided, in addition to this, under the action of each station, for example, two or more types of articles to be packaged, such as liquid and solid matter, can be easily put in the same packaging bag. It can also be filled and packaged.

Further, in this method, when the packaging bag is shaped into a desired shape prior to the step of filling the object to be packaged, for example, after opening the upper opening of the packaging bag, the bag is formed into a simple shape. It is possible to easily and reliably fill the packaging bag with the required amount of the article to be packaged.

[0009] Here, preferably, prior to sealing the upper end opening of the packaging bag filled with the object to be packaged, a portion in the vicinity of the sealing position is clamped, and the portion is bent and deformed in either the front or rear direction of the packaging bag. The upper end opening is sealed while maintaining this bending deformation state. In the soft packaging bag after filling the items to be packed,
Since the upper end opening is largely open, if the upper end opening is directly sandwiched and sealed with a heat heel blade or the like, the film before and after the opening of the packaging bag should be properly opened. Difficult to align and seal
Often, the seal will wrinkle at least one film. On the other hand, when the packaging bag is clamped at a position slightly below the sealing position separately from the heat-sealing blade, and the packaging bag is bent and deformed to either side of it, the sealing Regardless of the bulge of the body of the packaging bag, it is possible to properly align them with the original width of the packaging bag before and after the packaging bag regardless of the bulging of the body of the packaging bag. When the opening of the packaging bag is sealed with a sealing blade or the like, it is possible to sufficiently prevent wrinkles from being generated in the film, and it is possible to improve the appearance of the packaging bag in which the packaged object is packaged, as well as to be packaged. It is possible to completely eliminate the risk of unexpected leakage of objects.

If the air inside the bag is replaced with an inert gas such as nitrogen gas or a sterilizing gas such as carbon dioxide gas prior to such sealing of the upper opening of the packaging bag, the inside of the bag will be packaged. It is possible to prevent, for example, the deterioration of the taste of the packaged product due to the oxidation of the product, and to more effectively prevent the propagation of fungi in the bag. And these things
The same applies to the case where the air inside the bag is sucked and removed to create a negative pressure atmosphere prior to the sealing of the upper end opening.

Incidentally, prior to the opening process of the upper opening of the packaging bag, in other words, with the films before and after the packaging bag aligned as they were at the time of manufacturing, at least one of the front and back of the packaging bag has laser processing or the like. When a straight or curved tear guide mark with the required depth is formed, the packaging bag should be removed along the tear guide trace when the packaged bag is taken out. And can be opened easily.

Here, the sealing of the upper opening of the packaging bag is
In the case of partitioning a narrow-convex projecting passage for the packaged product that communicates with the packaging space of the packaged product, the packaging bag filled with the packaged product should be opened at a position that crosses the dispensing passage. By performing the above, it is possible to always properly pour the required amount of the article to be packaged through the narrow pour passage, and it is possible to effectively prevent excessive pour.

By the way, when at least the step of opening the upper end opening of the packaging bag, and more preferably the step of bag making to the sealing of the film are performed in a sterile atmosphere, floating bacteria and falling bacteria of the object to be packaged It is possible to more effectively prevent stains due to the like.

Thus, according to the present invention, each continuous packaging bag is subjected to various required operations while being stopped during intermittent feeding, whereby the structure of each working mechanism is sufficiently simple. In addition, it is possible to prevent the device from becoming large in size, and to pack a large amount or a plurality of types of objects to be packaged in one packaging bag without lowering the work efficiency and overflowing the objects to be packaged. It can be surely filled and packaged as intended.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a conceptual plan view illustrating a device for carrying out the method according to the present invention. In FIG. 1, reference numeral 1 indicates a packaging machine using a single-layer or laminated film as a packaging bag. The illustrated packaging machine 1 is for producing a continuous packaging bag 2 in which a required number of packaging bags, for example, ten packaging bags are continuous in the lateral direction as shown in FIG. 2, and each packaging of the continuous packaging bag 2 is performed. As shown in FIG. 2 (a), the bag 3 is of a three-sided type in which the bottom and both sides are heat-sealed, and as shown in FIG. 2 (b), only both sides are heat-sealed. It can also be of the side seal type. Further, the form of each packaging bag 3 may be a square bottom bag or the like conventionally known in relation to the object to be packaged and its filling amount.

Here, in manufacturing the continuous packaging bag shown in FIG. 2 (a), a pair of rolls of the packaging machine 1, which are located at the uppermost position in the figure, function as the feeding rolls 4, and the feeding rolls are fed. 4, the film 6 wound around the take-up roll 5 is continuously fed out and run through the guide plate 7 in a state of being folded in two in the width direction. Further, the roll located in the middle of the drawing is made to function as the side seal roll 8, and the film 6 that is fed and run in the widthwise two-fold posture is provided with the side seal 9 that has a predetermined interval in the running direction. Further, the pair of rolls located at the lowest position is made to function as the bottom seal roll 10, whereby the folded back portion of the film 6 in the two-fold posture is provided with the bottom seal 11 continuous in the traveling direction of the film 6.

The packaging bag 3 thus continuously produced is cut into a continuous packaging bag 2 by the cutting means 12 in units of a predetermined number of bags. When the continuous packaging bag 2 is manufactured in this manner, perforations or other cutting marks 13 for cutting and separating the packaging bag are formed in the side seal area for each one or plural bags of the packaging bag 3. It can also be formed.

On the other hand, the side seal type continuous packaging bag 2 shown in FIG. 2 (b) can be manufactured in the same manner by making the lower seal roll 10 inactive, and such a continuous seal bag can be manufactured. Even on the packaging bag 2, a cutting mark 13 is formed in the side seal area.
Can be provided.

Continuous packaging bag 2 manufactured as described above
Each of them has an intermittent transfer device 14 with a transfer means or the like.
It is carried in in the standing posture as shown in Fig. 2, and there,
In the same horizontal plane, they are arranged parallel to each other and at equal intervals.

Here, the intermittent transfer device 14 is arranged such that, after one continuous packaging bag 2 is aligned and arranged, the next continuous packaging bag 2 is carried into the intermittent packaging device 14 and aligned. All 2 are simultaneously intermittently fed by a pitch corresponding to one pitch in a direction orthogonal to the continuous direction of the packaging bag 3. As a result, the continuous wrapping bag 2 that has been transferred to the transfer end position of the intermittent transfer device 14 and during which all the filling and wrapping work of the object to be packaged, which will be described later, is completed, for example, in the continuous direction of each wrapping bag 3. Is taken out from the intermittent transfer device 14.

On the other hand, for the continuous packaging bag 2 which has reached the opening station 15 as a fixed station installed in relation to the feed pitch of the intermittent transfer device 14 by the intermittent feeding, while the intermittent feeding is stopped. Then, open the upper opening of all the packaging bags 3, and then by intermittent feeding,
For example, this continuous packaging bag 2 is carried into the first filling station 16 which also serves as a fixing station while the upper end opening is open.

The opening of the packaging bag opening at the opening station 15 is performed by, for example, a pair of driving rolls paired so as to move in the extending direction of the continuous packaging bag 2 while sandwiching the upper opening of the packaging bag 3. In addition to the above, the peripheral speeds of the paired rolls are made different from each other, and as the drive rolls move, a force in the direction opposite to the width direction of the packaging bag is applied to the film before and after the opening of the packaging bag. By doing so, it can be easily and surely performed, and the open state can be maintained by inserting a jig or the like into the upper end opening.

By the way, before the continuous packaging bag 2 is carried into the opening station 15, at least one of the front and rear films in the opening of each packaging bag is subjected to laser processing or the like so as to be virtually shown in FIG. As illustrated by a line, it is preferable to form a tear guide mark 17 of a required depth that extends in a straight line or a curved line and crosses a corner of the packaging bag 3. According to this, the packaged object is filled and packaged. By opening the packaging bag along the tear guide marks 17, it is possible to realize a smooth and easy opening.

Then, with respect to the continuous packaging bag 2 carried into the first filling station 16, a required amount of articles to be packaged is provided while the upper end opening of each packaging bag 3 is open and the intermittent feeding is stopped. Fill. Here, when the required amount of articles to be packaged cannot be completely filled with only the stop time of the continuous packaging bag 2 of the first filling station 16, or when two or more types of articles to be packaged are filled in one packaging bag. By providing a second filling station 18 adjacent to the first filling station 16 or a third or more additional station, the intended filling of the object to be packaged can be performed easily with a small fixed station having a simple structure. And surely.

Prior to filling the packaging bags 3 of the continuous packaging bag 2 with the articles to be packaged, the packaging bags 3 are shaped into a required shape that allows the articles to be packaged easily, for example, under heating. In this case, it is possible to more easily fill the required amount of the object to be packaged. The continuous packaging bag 2 that has been filled with the required amount of the object to be packaged is then preferably transferred to a clamp station 19 that clamps a portion near the upper end opening of the packaging bag 3,
Therefore, as shown in the longitudinal sectional view of the packaging bag in FIG.
The pair of clampers 20 clamps the packaging bag 3 at a position slightly below the sealing position, and at the same time, while maintaining the clamped state, the upper part of the packaging bag 3 is moved in either direction before or after that. In the figure, it is bent and deformed forward.

According to this, the deformation of the packaging bag film in the thickness direction of the packaging bag 3 is sufficiently removed from the upper end opening portion of the packaging bag 3 filled with the object to be packaged, and the front and rear films are opened at the packaging bag opening portion. Can be aligned flat under mutual surface contact. Therefore, for each packaging bag 3,
Continuous packaging bag 2 while maintaining such a sandwiched / bent state
Are carried into the sealing station 21, where the upper opening of each packaging bag 3 is sandwiched and sealed by a pair of heat-sealing blades 22 as shown by phantom lines in FIG. Since the upper end opening can always be properly sealed, this can prevent the film from being wrinkled at the packaging bag sealing portion and enhance the appearance of the packaging bag. It is possible to sufficiently prevent unexpected leakage of the packaged object from the package.

When the upper opening of the packaging bag 3 is sealed in this way, as shown in FIG. 4, the top seal 23 has a narrow space which communicates with the packaging space 3a for the packaged object of the packaging bag 3. When the width-convex to-be-packaged object pouring path 24 is defined, by opening the packaging bag at the pouring path position,
It is possible to always pour out the object to be packed under the constraint of the narrow flow path as always, and it is possible to effectively prevent the excess pour-out.

Even in this case, when the tearing guide mark 17 formed by laser processing or the like is formed so as to extend in the direction traversing the article pouring path 24, the packaging bag can be easily and smoothly opened. Can be done. In addition, it is possible to replace the air in the bag with an inert gas, a sterilizing gas, or the like prior to the above-described sealing of the upper opening of the packaging bag 3, and according to this, the article to be packed in the bag can be replaced. And the propagation of fungi in the bag can be effectively prevented, and these are almost the same when the air in the bag is removed by suction.

The packaging bag 3 filled with the objects to be packaged as described above and sealed at the upper end opening, and by extension, the continuous packaging bag 2
For example, when the filled package is a high temperature package that has been sterilized by heating, the package is cooled by one or more cooling stations 25 and 26 provided adjacent to the sealing station 21. It is preferable that these operations complete a series of filling and packaging operations.

Thereafter, the continuous packaging bag 22 is carried out of the intermittent transfer device 14 by the movement of the packaging bag 3 in the continuous direction, as described above. By the way, such a filling package of the packaged object is as shown in FIG.
It is preferable to perform a sterile atmosphere from the opening station 15 of the upper opening of the packaging bag 3 to the sealing station 21, which effectively prevents floating bacteria, falling bacteria, etc. from entering the packaging bag 3. be able to. And more preferably, as shown in the figure surrounded by a virtual line,
The aseptic atmosphere is provided from the packaging machine 1 to the sealing station 21 to sufficiently eliminate the risk of bacteria attachment to the film or the like in the bag making process.

[0031]

As described above, according to the present invention, the structure of the working mechanism can be simplified by filling the object to be packed and performing various required operations on the packaging bag in the stopped state. In addition, it is possible to fill a single packaging bag with a large amount or a plurality of types of objects to be packaged without fear of lowering work efficiency and overflow of the objects to be packaged. A work station can be appropriately attached without increasing the size.

[Brief description of drawings]

FIG. 1 is a conceptual plan view illustrating an embodiment of the present invention.

FIG. 2 is a side view illustrating a seal type of the continuous packaging device.

FIG. 3 is a diagram showing a modification of clamping / bending near the upper opening of the packaging bag.

FIG. 4 is a side view showing an example of division of a packaged article pouring passage.

[Explanation of symbols]

1 packaging machine 2 continuous packaging bags 3 packaging bags 6 films 9 Side seal 11 Bottom seal 13 cutting marks 14 Intermittent transfer device 15 Opening station 16 First filling station 17 Tearing mark 18 Second filling station 19 Clamp station 20 clamper 21 seal station 22 Heat seal blade 23 Top seal 24 Pour out passage for packaged items 25,26 Cooling station

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Claims (9)

[Claims] 1. A single-layer or laminated film is continuously supplied to a bag-making apparatus to produce a continuous packaging bag in which a unit number of packaging bags are continuous and an upper end is opened, and each continuous packaging bag is packaged. While intermittently transferring in parallel with each other in a direction intersecting with the continuous direction of the bags, opening of the upper end opening, filling of the object to be packaged and sealing of the upper end opening of each continuous packaging bag A method for filling and packaging an object to be packaged, which sequentially performs the steps of. 2. The method of filling and packaging an article to be packaged according to claim 1, wherein the article to be packaged is filled at a plurality of locations. 3. The method of filling and packaging a packaged article according to claim 1, wherein the packaging bag is shaped and processed into a desired shape prior to the step of filling the packaged article. 4. Prior to the sealing of the upper end opening, the portion in the vicinity of the sealing position is clamped to be bent and deformed in either the front or rear direction of the packaging bag, and the upper end opening is sealed while maintaining this state. The filling and packaging method of the packaged object according to any one of 1 to 3. 5. The air in the bag is replaced with an inert or sterilizing gas prior to the sealing of the upper end opening.
4. The method for filling and packaging an object to be packaged according to any one of 4 above. 6. The method for filling and packaging an object to be packaged according to claim 1, wherein air in the bag is suctioned and removed prior to sealing the upper end opening. 7. The filling and packaging method for an object to be packaged according to claim 1, wherein a tear guide mark is formed on at least one of the front and rear films of the packaging bag prior to the sealing of the upper end opening. 8. The package according to any one of claims 1 to 7, wherein the upper end opening is sealed while defining a narrow-width convex packaged article discharge passage communicating with a packaging space of the packaged article. Filling and packaging method of goods. 9. The method according to claim 1, wherein at least the opening step of the upper opening of the packaging bag to the sealing step are performed in a sterile atmosphere.
The method for filling and packaging an article to be packaged according to any one of 1.