JP2003118745A - Sealed bag having anti-germ plug and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealed bag having anti-germ plug by an efficient manufacturing means in which a segment contacted with a base part of the plug is spaced apart from a content storing segment so as to prevent the content from being contacted with the plug during its distribution and storage even if the plug is set and further enable the stored content to be kept in its sanitary state. SOLUTION: There is provided a plastic sealed bag in which the sealed bag is divided by a partition melting segment melted in an easy-peeling state into more than two units in such a way that the units cannot be communicated to each other; a plug is melted and fixed to one side of the sealed bag; no stored content is filled in the unit contacted with a base part of the plug; and a circumferential edge of a film is melted and fixed. This bag is manufactured by some steps of forming a long film into a cylindrical shape while its both edges are oppositely facing to each other; melting and fixing a base part of the plug between the two opposing films, and spot melting and fixing a circumference of the base part of the plug to form the spot melted segment having the plug; feeding the stored content into the unit not contacted with the base part of the plug; and melting and fixing the oppositely facing surfaces of the film in their width direction after feeding the stored content.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic sealed bag with a stopper, in which the base portion of the stopper is separated from the contents storage portion, and the sealed bag with a bacteria-blocking stopper which can keep the contents hygienic. Regarding the continuous manufacturing method.

[0002]

2. Description of the Related Art The contents filled in a plastic sealed bag are sterilized or sterilized with microorganisms in order to prevent deterioration of the contents under distribution and storage and to extend the storage period. As the sterilization and sterilization methods, the contents are once sealed in a plastic film, packaged, and then the packaging bag is heat-treated at a high temperature for a relatively long time. At that time, the contents that are still heated are filled in a bag, and the heat is used to sterilize and sterilize the film in a hot pack filling method, or the contents and the plastic film are separately sterilized in advance and the aseptic is sealed and filled. There are filling methods. As a method of separately sterilizing the latter contents and film, the contents are sterilized by heating the contents indirectly or momentarily while continuously passing the contents through, for example, a tube, a plate or a scraping type sterilizer. There is a method of sterilizing by heating or a method of sterilizing by heating by blowing heated steam directly into the contents.

The film is sterilized by batch-type sterilization by irradiating a film wound in a roll with γ-rays or electron beams, and by continuously feeding the film in a sterile chamber, high-concentration peroxide There are methods such as immersion in an aqueous hydrogen solution, spraying an aqueous hydrogen peroxide solution, and chemical sterilization such as immersion in an aqueous solution of peracetic acid or sodium hypochlorite. This method is said to be commercially sterile. There is. Although it does not reach the level of commercial sterility, in the case of sterilization treatment for extending the storage period such as refrigeration, there is a method such as irradiating the film with ultraviolet rays to sterilize it.

When a plastic sealed bag is filled with a fluid such as a liquid, a highly viscous fluid, or a paste, it is easy to take out the contents little by little by providing a spout on the bag. It has a through hole that extends from the tip to the base, and has a male screw on the outer periphery of the distal end, and a cap having a female screw that is screwed with this male screw on the inner periphery, or a cap that has a lid that fits.
A stopper member made of a plastic material having a spindle-shaped cross-section whose base is easily fused to the front and back bag materials is commercially available, and
Sealed bags with spouts are also commercially available.

In the case of a sealed bag with a stopper, it is necessary to sterilize or sterilize the stopper in addition to the film, and the above-mentioned methods are adopted. However, since the plug member has a complicated shape and a small caliber, it has a disadvantage that a dead zone occurs and it is difficult to sterilize sufficiently. In particular, in the case of contents such as foods in which various bacteria tend to propagate, not only the contents but also the film is completely sterilized before use, but sterilization of the mouth plug does not leave sufficient blind spots. was there. Moreover, most foods are liquids, highly viscous fluids, pastes, etc., and it is convenient to store them in a sealed bag provided with a spigot.

On the other hand, among the sealed bags, there are sealed bags called multi-chamber bags or temporary separation bags. The inside of the bag is divided into two or more compartments, and each compartment is filled with different contents. Moreover, the separation site in the bag is provided with an easily peelable fusion that easily peels off with a stimulus that pushes one of the compartments by hand.
Generally, the two-component viscous adhesive, the adhesive, the food and the seasoning and seasoning for the food are mixed and used at the time of use, but the contents are preferably filled when they are stored. In such a multi-chamber bag, it is necessary that the peel strength of the easily peelable fusion bonding part is appropriate. Further, when the content is a fluid, the internal pressure is directly applied to the easily peelable fusion-bonded portion, so that peeling is easy and it is difficult to adjust the peel strength.

[0007]

Under these circumstances, the present invention prevents contamination of the contents by providing a mouth plug and holding it so that the contents do not come into direct contact with each other. It is a thing. Specifically, the front and back films can be linearly and easily peeled off at a site that does not come into contact with the base of the stopper to separate the stopper from the contents until the time of use.

[0008]

According to the constitution of the present invention, a plastic sealed bag having a peripheral edge portion of a film fused thereto does not flow into two or more compartments due to a partition fusion-bonded portion which is easily peeled off. It is characterized in that it is separated as much as possible, a spigot is fused to one side of the sealed bag, and the compartment in contact with the spout base is not filled with contents. While feeding the long film from the upper side to the lower side, a step of facing both edges so that the same surface faces each other to form a tubular shape, and fusing a spigot base between two facing films,
A step of forming a fusion-bonded portion having a plug by fusion-bonding the periphery of the plug base, and a part spaced apart from the plug base, wherein the film faced along the longitudinal direction of the film. A step of forming partition fusion-bonded portions by subjecting each other to easy peeling, a step of charging the contents into a compartment not in contact with the plug base, and a surface of the film facing each other after the contents are charged. A method comprising the steps of fusing each other in the width direction and sealing the compartment into which the contents have been introduced and the compartment into which the contents have not been introduced.

That is, according to the present invention, the sealed bag is separated into two or more compartments by a fusion-bonding portion of at least two sides or a linear peelable fusion-bonding that reaches a crease line, and a compartment in contact with the spout base is vacant. It is what Preferably, the upper chamber is divided into upper and lower parts, and the upper chamber is defined as a part in contact with the spout base. As a result, it is possible to prevent the contamination of the contents by separating the spout that is difficult to sterilize reliably from the contents of the sealed bag before filling. Therefore, the easily peelable fusion-bonding part must not come into contact with the spout base, and must maintain an appropriate fusion-bonding strength such that it does not peel off during distribution and storage and easily peels off during use. In order to surely obtain an appropriate fusion strength, two or more kinds of resins having different softening temperatures, preferably 10 ° C. or more, are mixed and used as the heat-fusible resin, or ultrasonic fusion is performed. It is preferable not only to isolate the mouth plug base from the contents, but also to fill the compartment in contact with the mouth plug base with a gas such as carbon dioxide gas that inhibits the growth of bacteria.

As for the form of the bag, a stand pack having a gusset fold at the bottom and imparting uprightness is preferable. When the stand pack is used, the linear easily peelable fusion-bonding portion is always above the contents. When the content is a fluid, the internal pressure applied to the easily peelable fusion bonding site becomes large, but if the easily peelable fusion bonding site exists on the content, the easily peelable fusion bonding site and the content are almost Do not touch. Even if they come in contact with each other, a large pressure is not applied, and even if the peel strength is weak,
There is no risk of peeling during the distribution and storage process, and the easy peeling and fusing process becomes easier.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The plastic sealing bag used in the present invention is not particularly limited, but it is a three-way seal having no fusion parts on the front surface and the back surface because it is separated into two or more compartments and melted easily. A 4-sided seal, a stand pack, a gusset bag and the like are preferable. A single layer film may be used as the film, but a laminated film is generally used. A film obtained by laminating a heat-fusible layer such as polyethylene, particularly linear low density polyethylene, polypropylene, ethylene-vinyl acetate copolymer, or ionomer resin on a base material film such as nylon, polyester or stretched polypropylene is used. In the present invention, the plastic bag is provided with a stopper, and by the easy peeling fusion of the front and back films,
It is blocked into two or more compartments, one that contacts the spout and one that does not. In some cases, it is also possible to separate the content storage portion that does not come into contact with the spout into two or more compartments. In particular, when the content is a fluid such as a liquid, a highly viscous fluid, or a paste-like material, it is preferable that the content can be reliably discharged in a fixed amount without leaking when the content is discharged in small amounts.

The partition fusion-bonded portion is an easily peelable fusion-bonded portion,
When the peeling force is applied to the hermetically sealed bag, it is peeled off preferentially to the peripheral fusion bonding portions such as the top fusion bonding portion, the side fusion bonding portion, and the bottom fusion bonding portion.
The fusing strength of the partition fusing part is 2.0-15.0N / 15m
It is preferably in the range of m. Fusion strength is 2.0N /
If it is less than 15 mm, the easily peelable fusion-bonded portion is broken before use and the contents leak out. On the other hand, the fusion strength is 1
If it exceeds 5.0 N / 15 mm, the easily peelable fusion-bonded part is less likely to break during use.

The film is previously sterilized in order to maintain sterility as much as possible. As a sterilization method, there is a batch type sterilization method in which a film wound around a roll is placed in a sterile chamber and irradiated with γ rays or electron rays. Further, a method of continuously irradiating the film with γ-rays or electron beams, or irradiating with ultraviolet rays is also adopted. Also, heating the contents after filling,
There is also a method of sterilizing the film with the heat. In the bag with the stopper of the present invention, it is preferable that the stopper is also sterilized by irradiation with ultraviolet rays before being fused to the bag.

FIG. 1 is a perspective view showing an example of the sealed bag of the present invention, and FIG. 2 is a perspective view showing an example of a spout. Reference numeral 1 is a sealed bag, 2 is a side fusion bonding portion, and 3 is a gusset-folded bottom fusion bonding portion. By gusseting the bottom, the sealed bag 1 in FIG. 1 could be made to stand upright. Reference numeral 4 is a spout, 5 is a spout base portion, and 6 is a fusion-bonding portion which is fused with the spigot base portion 5 sandwiched therebetween. As shown in FIG. 2, the spigot base 5 has a spindle shape in cross section for facilitating airtight fusion with the fusion-bonded portion 6, and penetrates the nozzle 7 at the bottom to discharge the content by a fixed amount. A through hole 8 that can be opened is opened. One side of the spigot base 5 having a spindle-shaped cross-section is fused with the fusion-bonding part 6 on one side of the sealing bag, and the other side of the spout-base 5 is the fusion-bonding part 6 on the other side of the sealing bag. In the region without the plug base of the fusion-bonded part 6, the regions serving as the fusion-bonded parts of the films on both surfaces of the sealing bag are fused. Reference numeral 9 is a cap screwed with the nozzle 7.

The partition fusion-bonding portion 10 is a portion that does not come into contact with the spout base portion, and it is sufficient that the sealing bag is separated into two or more compartments so that they cannot flow through each other. Generally, it is provided in a linear shape parallel to the fusion bonding portion 6. The compartment 11 below the partition fusion-bonded portion is filled with the content 11. The content 11 is generally a fluid. Side fusion bonding part 2,
The bottom fusion part 3 and the top fusion part 6 have a fusion strength of 12 N / 15 mm or more, but the partition fusion part 10 differs according to the type of contents, the size of the sealing bag, the material, etc.
A peel strength in the range of 4.9 to 11.8 N / 15 mm, measured according to 8, is preferred. The partition fusion-bonded portion 10 is peeled off when the storage area for the contents 11 is strongly pressed, and the contents can be taken out from the nozzle 7 when the cap 9 is removed, as shown by the arrow in FIG.

Although FIG. 1 shows a stand pack having a gusset fold and a bottom fusion bonding portion 3 at the bottom of the bag, the spout base 5 is the partition fusion bonding portion even in the case of a normal sealed bag that does not stand upright. If it is not in contact with 10, the object of the present invention can be achieved. Furthermore, it is preferable to fill a gas that does not grow miscellaneous bacteria into the compartment in contact with the spout base. Carbon dioxide, nitrogen gas, and other harmless gases are used as the gas that does not cause the growth of bacteria. In the present invention, these gases are naturally not included in the contents.

In order to obtain the peel strength in such a range, it is preferable to use ultrasonic waves for fusion. When an ultrasonic fusion machine is used, a resonance horn and a pedestal, which are opposed to each other with the film interposed therebetween, are provided. The resonant horn is connected to a vibrator that converts high-frequency current from the transmitter into longitudinal vibration. By pressing the film with the resonance horn and the pedestal and transmitting ultrasonic vibration energy to the film, local internal heat generation is generated at the boundary surface of the overlapping films, and that part is instantaneously fused, The easily peelable partition fusing part 10 is formed on the film.

In the easily peelable fusing mechanism 26, it is necessary to set the shape of the resonant horn and the fusing conditions so that the fusing strength of the easily peelable part becomes weaker than that of the top fusing part or the side fusing part. is there.
For example, if the tip of the resonance horn is embossed, the fusion pressure is different between the embossed convex portion and the concave portion, and this causes unevenness of the partial fusion strength, and the film is peeled at the easily peelable fusion portion. It has an advantage that peeling easily occurs from the concave portion when a force is applied. In addition to embossing the tip of the resonance horn, even if stripe-shaped irregularities oriented so as to intersect each other are formed on the opposing surfaces of the resonance horn and the pedestal, the partial fusion strength You can make unevenness. Alternatively, when lowering the temperature of the heat bar, shortening the heating time, or lowering the heating pressure and fusing with the heat bar, use a heat-fusible layer in which two or more resins with different softening temperatures are mixed. Preferably.

When bag-making is carried out using a laminated film having an ordinary heat-fusible layer provided on one surface thereof, the base materials do not fuse to each other in the gusset folding section 3, and the side-welding section faces downward. In addition, it is difficult to obtain sufficient uprightness. The gusset fold is in a state where two gusset folds are sandwiched between two front and back films. Here, a method is generally used in which perforations are provided at the side fusion-bonded portions in the central portion of the two gusset folds. When a hole is provided in the center of the gusset fold, the 2
Since the sheets of film come into direct contact with each other, the heat-fusible layers are directly fused to each other, and as a result, the four sheets of film can be integrated, and both the uprightness and the appearance are improved.

Next, an example of a bag-making filling and packaging machine suitably used for producing a self-supporting gusset bag with a spout will be described with reference to FIG. 3 which is a side view thereof and FIG. 4 which is a front view thereof. explain. This bag-making and filling machine feeds the long sheet-shaped film 20 from the upper side to the lower side by two sets of feed rollers 21 and supplies the contents from a charging nozzle 22 extending vertically downward, as shown in FIG. The self-standing sealed bag 1 is manufactured.

In FIGS. 3 and 4, a long sheet-shaped film 20 supplied via a guide roller 23 is provided above the charging nozzle 22 in a state where both edges of the film 20 face the same side. A film folding mechanism 24 for folding the portion of the bottom surface of the sealing bag 1 inward to form a flat shape.
Is provided.

Film folding mechanism 24 and fusion bonding mechanism 25
A stopper supply mechanism 27 for supplying the stopper 4 and a stopper fusion mechanism 28 for sealing the supplied stopper 4 are disposed between the seal bag 1 and the sealing bag 1. There is. The plug supply mechanism 27 is omitted in FIG. A spout cooling mechanism 29 for cooling the portion of the tubular film to which the spigot 4 is fused is arranged below the ceiling fusion mechanism 25. Further, since the squeeze roller 30 presses the tubular film after the spigot 4 is fused to the tubular film, the length is short so as to press the tubular film at a position where the spigot 4 does not pass. The feed roller 21 rotates while sandwiching the tubular film 20, thereby feeding the tubular film downward, and is provided below the above-mentioned fusion bonding mechanism 25.

Below the feed roller 21 and below the lower end of the charging nozzle 22, a pair of squeegee rollers 30 which are arranged to face each other with a tubular film interposed therebetween and which are rotated in synchronization with the rotation of the feed roller 21 are provided. It is provided. The squeeze roller 30 divides the contents put into the tubular film by sandwiching the tubular film, and is provided so as to be movable opposite to each other in the A direction shown in FIG. 4 by a drive mechanism (not shown). ing. Further, the squeeze roller 30 is rotated with the tubular film sandwiched therebetween, so that the tubular film is fed downward together with the feed roller 21. A side fusing mechanism 31 for fusing the opposed inner surfaces of the tubular film to each other over the front width and forming the side fusing part 2 of the sealing film 1 is disposed below the crawler roller 30.

The film folding mechanism 24 includes a trapezoidal plate 33,
Two guide arms 34 provided below the trapezoidal plate 33
And a pushing plate provided between the two holding plates 35 provided below each guide arm 34, and two pairs of holding rollers 36. The trapezoidal plate 33 has an upper side length longer than a lower side length and a width of the film 20, and
It is a plate member in which the angles of the two hypotenuses are equal to each other and are arranged obliquely with respect to the vertical direction. Two guide arms 34 extending horizontally and parallel to each other are provided near the lower side of the trapezoidal plate 33.

The film 20 via the guide arm 34
Is fed downward by being driven by the feed roller 21 while closely contacting with the upper surface of the trapezoidal plate 33, and further, the spread of the end portion of the film 20 is suppressed from the outside of the film by each guide arm 34. As a result, two ridges 20a are formed on the film as shown in FIG.
The area between is the bottom of the freestanding gusset bag.

Below the guide arm 34, one pushing plate and two holding plates 35 are arranged for folding the region between the two ridges 20a formed in the bag further inward. The pushing plate is an inverted triangular member, and is arranged so as to be inclined so as to push the region between the two ridges 20a shown in the portion 5 from the outside of the bag 20. Each holding plate 35
Are placed facing each other inside the bag with a space between them,
By supporting the two ridges 20a from the inside of the bag, each ridge 20a is pushed when the bag is pushed by the pushing plate.
Is regulated so that is not pushed inward.

As shown in FIG. 6, the film 20 that has passed through the pushing plate and the pressing plate 35 is folded into a W-shape on the side opposite to the open end, and has two peaks 20b and a valley between them. And are formed. Further, the pressing plates 35 are arranged so as to be inclined so that their mutual intervals become smaller in accordance with the inclination of the hypotenuse of the pushing plate. Two pairs of pressing rollers 36
As shown in FIG. 6, the folded portion of the folded film 20 and the overlapped edge portion are respectively sandwiched to guide the feeding of the film.

As shown in FIG. 7, which is a sectional view taken along the line BB in FIG. 3, the bottom fusion mechanism 41 has a pair of bottoms that are moved oppositely by drive sources (not shown) arranged so as to face each other. It has a heat bar 42 and a receiving plate 43 arranged between the bottom heat bars 42. The film 20 that has passed through the film folding mechanism is fed so that the receiving plate 43 is located between the two crests 20b. Each bottom heat bar 43 is moved forward in a state where the film is stopped to be fed, and both sides of the receiving plate 43 are sandwiched between the bottom heat bars 42, that is, the inner surfaces of the films facing each other are fused by the two crests 20b. , The bottom fused portion is formed. Such a portion of the film fused by the bottom fusion mechanism functions as a rib for stably standing the sealed bag 1 as shown in FIG.

When gusset folding and bottom fusion are not performed, a three-sided sealed bag having no self-supporting property is obtained. If the bottom fusion is performed without gusset folding, a four-sided sealed bag can be obtained. The easily peelable fusing process is performed by using the vertical fusing mechanism on the part to be fused by partitioning. If the above-mentioned ultrasonic fusion machine is used, a better partition fusion zone can be obtained. Further, an easily peelable fusing process can be performed by adjusting a heating time, a heating temperature or a fusing pressure by using a heat fusing mechanism using an ordinary heat bar.

As shown in FIG. 7, the ceiling fusion bonding mechanism 25 has a ceiling heat bar 44 and a ceiling heating receiving bar 45 which are arranged to face each other with both edges of the film 20 facing each other. On the surface of the ceiling heating bar 45 facing the ceiling heat bar 44,
A mat made of silicone rubber is attached to prevent the heated film from adhering to the ceiling heating receiving bar 45. By pressing and heating both edge portions of the film facing each other by the ceiling heat bar 44 and the ceiling heating receiving bar 45,
Both edges of the film are fused to each other to form the fusion-bonded portion 6 on the film. Since it is necessary to provide a spigot in the present invention, the actual fusion bonding mechanism is performed by using a more complicated mechanism which will be described later.

FIG. 8 is an enlarged view in which a part of the spout supply mechanism 27 shown in FIG. 3 is cut away. The stopper supply mechanism 27 transfers the stopper holder 50 holding a large number of stoppers 4 and the stopper 4 held by the stopper holder 50 to the position of the stopper fusion mechanism 28 (see FIG. 3). Unit 51. The stopper holder 50 is fixed to the base 53 by a bracket 52 inclining with respect to the horizontal direction, and holds the stoppers 4 arranged in a line with the cap facing downward. Spout holder 50
In order to maintain this posture of the stopper 4, the guide groove having the flange portion of the stopper body as a guide is provided in the.

The plug transfer unit 51 is provided on the base 53 so as to be swingable about a shaft 54. A finger 55 for gripping the cap of the stopper 4 is provided at the tip of the stopper transfer unit 51. As the structure of the fingers 55, a general structure for gripping an article can be applied, but the gripping method utilizing its own elastic deformation is the simplest.

When the cap transfer unit 51 is rotated clockwise to the position of the cap holder 50 by a driving means (not shown), the cap 4 at the lowermost position held by the cap holder 50 is finger 55. Is gripped by. After that, by rotating the stopper transfer unit 51 counterclockwise, the stopper 4 gripped by the finger 55 is moved to the stopper holder 5
It is pulled out from 0 and is transferred to the position of the spout fusion mechanism 28 through the locus shown by the one-dot chain line as the spout transfer unit 51 rotates. On the other hand, when the stopper 4 is pulled out from the lower end of the stopper holder 50, the remaining stopper holders 50 slide down along the guide groove, and the lowermost one is supported on the support member 56. In the next operation, the lowermost stopper 4 is pulled out.

As shown in FIG. 3, the spigot fusion mechanism 28 is located on the open end side of the film folded by the film folding mechanism 24, and as shown in FIG.
There are two heaters 57 for fusing, which are arranged so as to face each other with 0 therebetween and are respectively moved to face each other in the horizontal direction. Each fusing heater 57 has a built-in heating means such as an electric heater. As shown in FIG. 2, the spout 4 is a spout base 5 having a spindle-shaped cross section on the side opposite to the cap 9 of the spout body,
The heater 5 for fusing is provided on the facing surface of each heater 57 for fusing.
The recess that receives this spout base 5 when 7 is closed,
It is formed in a shape that matches the outer shape of the spout base 5.

After the plug 4 is supplied by the above-mentioned plug supply mechanism 27, each fusing heater 57 of the plug fusion mechanism 28 is used.
By closing, the cap base 5 and the edge of the film are heated while being pressurized, and the cap 4 is fused to the open end of the film while being sandwiched between the edges of the film. .

The ceiling fusion mechanism 25 is located below the spout fusion mechanism 28 and has a ceiling heater bar and a ceiling heater receiving bar. However, like the fusing heater 57 of the spout fusion mechanism 28, the top heater bar and the top heater receiving bar face each other when the top heater bar and the top heater receiving bar are closed. A recess is formed to receive the spout base of No. 4. As a result, the film having the spigot base 5 fused thereto is favorably fusion-bonded.

As shown in FIG. 4, the spout cooling mechanism 29 is
After the fusion bonding is performed by the fusion bonding mechanism 25, the two compression members 58 are arranged so as to face each other with the tubular film interposed therebetween and are respectively moved to face each other in the horizontal direction. Each pressure member 5
8 is made of a metal having a high thermal conductivity, and the pressing surface of each pressurizing member 58 faces each other when the pressurizing member 58 is closed, like the fusing heater 57 of the spout fusion mechanism 28. Stopper base 5
Is formed to receive the. By sandwiching the fusion-bonded portion of the plug base 5 of the tubular film with the pressing member 58, the heat given by the plug fusion mechanism 28 and the ceiling fusion mechanism 25 is applied to the pressure member 58. As a result,
The portion where the spout base 5 is fused is cooled.

In FIG. 9, two cylinders 61 and 66 are arranged with the tubular film 20 in between, with their rods facing each other. Each of the cylinders 61 and 66 is fixed to a slider (not shown) that moves to face each other in the horizontal direction. A cutter holding bar 62 holding a cutter 63 so as to be able to move forward and backward is fixed to the rod of one cylinder 61. Further, the cylinder 61 is provided with a heater receiving bar 64, which receives a heater bar 67, which will be described later, swingably in the direction of arrow D in the figure around the support shaft 61a. Although the heater receiving bar 64 is biased counterclockwise in the drawing by spring elasticity,
The position of the tip portion of the is regulated so as not to rotate beyond a height substantially equal to the position of a heater bar 67 described later. A mat made of silicone rubber is attached to the tip surface of the cutter holding bar 62 and the tip surface of the heater receiving bar 64.

Further, the rod of the cylinder 61 is provided with a cam, and the heater receiving bar 64 is provided with a cam receiving roller which comes into contact with the lower surface of the cam when the rod of the cylinder 61 is advanced. This allows the cylinder 6
When the rod of No. 1 moves forward and the cam rides on the cam receiving roller, the heater receiving bar 64 swings clockwise against the urging force of the spring.

A heater bar 67 containing a heating means (not shown) such as an electric heater is fixed to the rod of the other cylinder 66. Further, the cylinder 66 is provided with a cooling bar 68 which receives the cutter holding bar 62.
The support shaft 66a is provided so as to be swingable in the direction of arrow E in the drawing. The cooling bar 68 is biased clockwise in the drawing by a spring, but the position of the tip of the cooling bar 68 is regulated so as not to rotate beyond a height substantially equal to the position of the cutter holding bar 62. A groove is formed at the tip of the cooling bar 68 so that the cutter 63 can enter when the cutter 63 held by the cutter holding bar 62 is advanced.

Further, the rod of the cylinder 66 is provided with a cam, and the cooling bar 68 is provided with a cam receiver which comes into contact with the lower surface of the cam when the rod of the cylinder 66 is advanced. As a result, when the rod of the cylinder 66 moves forward and the cam rides on the cam receiving roller, the cooling bar 68 swings counterclockwise against the biasing force of the spring.

Next, the filling and packaging operation of the bag making and packaging machine described above will be described with reference to FIGS. 3, 4 and 10. 3 and 4, in a state where the squeeze roller is opened, while the contents are charged from the charging nozzle 22 into the compartment provided with the gusset fold of the tubular film, the feeding roller 21
Is rotated to feed the tubular film 20 downward. On this occasion,
The bottom fusion-bonded portion 3, the ceiling fusion-bonded portion 6 and the partition fusion-bonded portion 10 have already been formed on the tubular film.
The contents 11 are filled in the compartment on the side of the bottom fusion portion, which is partitioned by, and nothing is filled in the compartment on the side of the ceiling fusion portion where the spout base 5 is fused. The charging nozzle 22 charges the contents into a compartment that does not come into contact with the spout base 5.

When the cylindrical film 20 is fed by a predetermined amount, the closing roller 30 is closed, and the contents are divided by the closing roller 30 in the cylindrical film. When the tubular film is fed downward by further rotating the feed roller 21 and the squeeze roller 30 in this state, as shown in FIG. 10A, the tubular film 20 has no empty contents 20d.
Is formed.

When the tubular film is fed until the empty filling section 20d is positioned between the side fusion bonding mechanisms 31, the feeding of the tubular film is stopped and the cylinders 61 and 66 are moved closer to each other by driving the slider described above. To go. At this time, the heater bar 67 is moved forward, and the heater bar 67 and the heater receiving bar 64 face each other. Each cylinder 61, 66
As shown in FIG. 10B, the heater bar 67 and the heater receiving bar 64 are closed and the empty filling section 20d is pressurized. As a result, the empty filling section 20d
Are fused together.

When the fusion of the empty filling portion 20d is completed, the heater bar 67 is moved backward, and at the same time, the cutter holding bar 62 is advanced as shown in FIG. 10 (c). As a result, the cooling bar 68 and the heater receiving bar 64 are each rotated clockwise, and the cooling bar 68 is moved to a position facing the cutter holding bar 62, while the heater receiving bar 64 is moved.
Is retracted downwards. As a result, the empty filling section 20d is pressurized by the cooling bar 68 and the cutter holding bar 62 this time.
In this state, the fused portion is cooled, and the cutter 63 is
To cut the fused portion.

When the fused portion is cut, the cylinders 61 and 66 are retracted, and the obtained sealed bag 1 is dropped. At this time, the cutter holding bar 62 is retracted and the heater receiving bar 64 is returned to the original position. Then, the closing roller 30 is opened, and the contents for the next time are dropped from between the closing rollers 30.

The thus-obtained sealed bag becomes a self-supporting sealed bag 1 which can stand upright with the bottom fusion bonding portion 3 as the bottom. Moreover, the contents are filled in the bottom compartment, and the top plug, which is not filled with the contents, is provided with a spigot at the uppermost portion, so that the spigots and the contents are reliably separated. This bag-making filling and packaging machine, while feeding the film, is provided with a spigot at the top fusion-bonding part, and the bottom fusion-bonding part is gusset-folded to make the bottom fusion-bonding and the formation of partition fusion-bonding by easy peeling fusion Since the filling of the contents and the filling of the contents are carried out at the same time, the sealed bag shown in FIG. 1 can be carried out continuously and efficiently.

In the above description, the compartment on the spout side was not filled with anything, but a harmless gas such as carbon dioxide gas or nitrogen gas can be filled. In this case, the spigot is attached. A second dosing nozzle can be inserted in the side compartment and these gases can be filled from this second dosing nozzle. Furthermore, it is also possible to provide two or more compartments that do not come into contact with the mouth plugs and to fill each compartment with different contents. Also in this case, each charging nozzle may be used for each section.

[0049]

EFFECTS OF THE INVENTION According to the present invention, in order to prevent the contents from coming into contact with the spout during distribution and storage while having the spout, the part in contact with the spout base is separated from the contents storage part, and the contents are stored. A sealed bag with a bacteria-blocking spout that can be kept hygienic can be provided by an efficient means.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of an embodiment of the spout.

FIG. 3 is a side view of one embodiment for manufacturing a sealed bag with a spout.

FIG. 4 is a front view of an embodiment for producing a sealed bag with a spout.

FIG. 5 is an end view of the film showing a state in which the gusset is being folded.

FIG. 6 is an end view of the film in a gusset folded state.

7 is a sectional view taken along line BB of FIG.

FIG. 8 is an enlarged cross-sectional view in which a part of the spout supply mechanism shown in FIG. 3 is cut away.

FIG. 9 is an explanatory diagram of a side fusion bonding mechanism.

FIG. 10 is a view showing a side fusion mechanism including filling, fusion, and
It is explanatory drawing which shows a cooling and cutting process.

[Explanation of symbols]

1 sealed bag 2 Side fusion part 3 Bottom fusion part 4 mouth plugs 5 spout base 6 Fusion part 7 nozzles 8 through holes 9 cap 10 Partition fusion splicing part 11 contents 20 films 21 Feed roller 22 Input nozzle 24 Film folding mechanism 25 Healing mechanism 26 Easy peeling fusion mechanism 27 Mouth supply mechanism 28 Mouth plug fusion mechanism 29 Mouth cooling mechanism 30 Shigoki Roller 31 side fusion mechanism 34 Guide arm 35 Press plate 36 Pressing roller 41 Bottom fusion mechanism 42 bottom heat bar 43 Support plate 44 Heaven heat bar 45 Heaven heating receiving bar 50 mouthpiece holder 51 Mouth transfer unit 52 bracket 53 base 54 shaft 55 fingers 56 Support member 57 Heater for fusion 58 Pressure member 61, 66 cylinders 62 cutter holding bar 63 cutter 64 heater receiving bar 67 heater bar 68 Cooling bar

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65D 30/16 B65D 30/16 A 4F 211 33/36 33/36 81/20 81/20 N 83/00 B65B 55/08 A // B65B 55/08 B B29L 22:00 B29L 22:00 B65D 83/00 G (72) Inventor Tetsuo Matsushita 2102 Hiratsuka, Ageo-shi, Saitama Asahi Kasei Packs Ltd. (72) Inventor Orihiro Tsuruta Gunma Prefecture Takasaki City Midorimachi 4-5-20 Orihiro Engineering Co., Ltd. F-term (reference) 3E014 PA01 PA02 PA03 PB03 PC03 PC08 PC16 PF06 3E050 AA02 AB02 BA02 BA11 CA01 CB02 DC02 DC08 DD03 DD10 DF01 DH04 FA01 FB01 FB07 GA02 GA01 GA10 GB05 JA04 JA05 3E064 AA03 AA04 AA05 AB23 BA27 BA29 BA30 BA36 BA46 BA54 BB03 BC08 BC18 EA18 FA03 HN65 HT07 3E067 AA04 AB01 AB26 BA12A BB14A BC07A CA24 EA18 EA32 FA08 FA22 CA08 HA08 BA20 CA08 A08 BA22 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 BA08 AD05 AD08 AG07 AH54 TA01 TC18 TD11 TJ11 TN 02 TN22 TQ13

Claims (12)

[Claims] 1. A plastic sealed bag having a peripheral edge portion of a film fused thereto is separated into two or more compartments by a partition fusion-bonding portion that is easily peeled off so that they cannot flow into each other. A sealed bag with a bacteria-blocking spout, characterized in that a spigot is fused to a side, and a compartment in contact with the spout base is not filled with contents. 2. The fusion bonding strength of the partition fusion bonding portion is 2.0 to 1.
It is 5.0 N / 15 mm, The sealed bag with a bacteria-blocking spout according to claim 1, which is characterized in that. 3. The sealed bag with a bacteria-blocking spout according to claim 1, wherein a side of the plastic sealed bag facing the spout is a gusset-folded stand pack. 4. The hermetically sealed bag with a bacteria-blocking plug according to any one of claims 1 to 3, wherein a gas that does not allow bacteria to grow is enclosed in a compartment that contacts the plug base. 5. The hermetically sealed bag with a bacteria-blocking spout according to claim 4, wherein the gas that does not allow the bacteria to grow is carbon dioxide gas. 6. The sealed bag with a bacteria-blocking spout according to any one of claims 1 to 6, wherein the content is a fluid. 7. A plastic sealed bag having a peripheral edge portion of a film fused thereto is separated into two or more compartments so that they cannot flow through each other by a partition fusion-bonded portion that is easily peelable and is fused, In manufacturing a sealed bag in which the stopper is fused to the side and the compartment in contact with the stopper base is not filled with the contents, the long film is fed from the upper side to the lower side so that the same surface faces each other. A step of facing both edges to form a tube, and fusing a spigot base between two films facing each other,
A step of forming a fusion-bonded portion having a plug by fusion-bonding the periphery of the plug base, and a part spaced apart from the plug base, wherein the film faced along the longitudinal direction of the film. A step of forming partition fusion-bonded portions by subjecting each other to easy peeling, a step of charging the contents into a compartment not in contact with the plug base, and a surface of the film facing each other after the contents are charged. A method for producing a sealed bag with a bacteria-blocking spout, comprising the steps of fusing each other in the width direction and sealing the compartment into which the contents are put and the compartment into which the contents are not put. 8. The sealed bag with a bacteria-blocking spout according to claim 7, wherein in the step of forming the partition fusion-bonded portion, the front and back films are linearly fused by an ultrasonic fusion method. Manufacturing method. 9. The miscellaneous bacteria according to claim 7, wherein the step of forming the partition fusion-bonded portion uses a heat bar to linearly fuse the front and back films with a weaker fusion strength than the peripheral fusion-bonded portion. A method for manufacturing a sealed bag with a shut-off stopper. 10. The step of forming the film into a tubular shape includes forming two crests by folding inward the portions opposite to the opposite edge portions facing each other, and forming the film into a tubular shape. After the step of forming, the method further comprises the step of fusing the two crests in the longitudinal direction of the film, wherein the sealed bag with a bacteria-blocking spout according to any one of claims 7 to 9. Production method. 11. The step of forming the film in a tubular shape includes a step of folding the long film at the center in the width direction so that both edges of the long film are aligned with each other. The method for producing a sealed bag with a bacteria-blocking spout according to any one of 1. 12. A step of, after the step of forming the film into a tubular shape, fusing the inner surfaces of the film along the fold line at the fold line formed in the film by being folded at the center in the width direction. The method for producing a sealed bag with a bacteria-blocking spout according to claim 11, further comprising: