JPS63317465A - Package equipped with opening and closing fastener, and method and apparatus for preparing the same - Google Patents

Abstract

PURPOSE:To provide a package capable of storing an article to be packed in a hermetically sealed state during the period up to the time of reuse after the package is once opened, by arranging a freely openable and closable fastener along the vicinity of the inside of a center seal part. CONSTITUTION:An article 2 to be packed is successively sent to a bag manufacturing apparatus 7 by the finger 11 provided to a feed apparatus 10 for feeding the article to be packed and covered with a strip like film 6 in a cylindrical shape. The strip-like part 23 of the male/female fastener 3 supplied through guide rails 26-26 is heated by upper and lower opposed welding sealers 27-27 to be thermally bonded to the inner surface of a cylindrical film 8. By this method, the freely openable and closable male/female fastener 3 is provided to the further inner side of the center seal part 1a formed to a package 1. By this constitution, when a part of the article 2 to be packed is taken out of the package 1 by opening the center seal part 1a of said package 1 and the remaining article 2 to be packed is stored, said article can be stored in a hermetically sealed state by closing the male/female fastener 3.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a package with an opening/closing zipper 1J, and a method and apparatus for manufacturing the same.

(Prior Art) There are various packaging forms depending on the purpose and the shape of the packaged object. When the item to be packaged is tall (thick) or when multiple pieces of confectionery or other small items are to be packaged, the band-shaped film is continuously shaped into a cylinder and wraps around the item. There is a package that is formed by sealing the package into a cylindrical shape and then cutting in the perpendicular direction between each packaged item at the same time as sealing to complete the packaging. In other words, by forming the strip film into a cylindrical shape and sealing all the open parts, the packaged item is hermetically packaged, and the packaged item is prevented from becoming stale (or drying out). are doing.

(Problems to be Solved by the Invention) With the above-mentioned package, the hermetically packaged object is not exposed to the outside air and can be prevented from becoming damp when not in use. In addition, once the package is opened,
There is no problem if the packaged item is consumed within a relatively short period of time. However, if the packaged item remains after opening, it is necessary to prevent the packaged item from coming into contact with the outside air and becoming damp (or dry) until it is repackaged at a later date. Conventionally, in such cases, the opening of the package was folded to prevent moisture from entering the package, but this was not sufficient.

The present invention has been made in view of the above-mentioned problems, and its purpose is to create a package that can hermetically preserve the packaged item even after it has been opened until it is ready for reuse. It is an object of the present invention to provide a manufacturing method and a manufacturing apparatus that can easily and accurately manufacture such a package.

(Means for Solving the Problems) In order to achieve the above-mentioned object, in the first invention of the present invention, a band-shaped film is formed into a cylindrical shape to cover an object to be packaged, and the side edges of the cylindrical film are In a package formed by applying a shrink seal to the overlapping ends to form a center seal part and sealing the openings on both sides of the cylindrical film in the lateral direction, the packaged article is hermetically housed. A zipper that can be opened and closed is placed along the inner side of the center seal.

Further, in the second invention, which allows the first packaging body to be manufactured easily and accurately, the object to be packaged is conveyed at predetermined intervals, while the strip-shaped film that is continuously pulled out is formed into a cylinder. The article to be packaged is filled into the cylindrical film, and a band-shaped male and female fastener in which a male fastener and a female fastener are engaged is inserted between the overlapping side edges of the cylindrical film, and then, The male type fastener and the female type fastener are adhered to the inner surfaces of the cylindrical film in contact with each other, and the outer sides of the male and female fasteners adhered to the side edge overlapping portion of the cylindrical film are compressed and sealed. After the application, seal cuts were made at predetermined intervals in the transverse direction of the cylindrical film's traveling direction.

In a third invention that effectively carries out the invention of the method described above, there is provided a packaged article conveying means for conveying the packaged articles at predetermined intervals; means for forming the drawn film strip into a cylindrical film; a film conveying means for transporting the object to be packaged into the cylindrical film; and a means disposed on the film loading side of the film conveying means. a guide means for inserting into a predetermined position a band-shaped male and female fastener in which a male type fastener and a TFT type fastener are engaged near the side edge overlapping portion of the cylindrical film; and a guide means disposed in the middle of the film conveying means. an adhesive means for adhering the male type fastener and the release fastener to the polymerized inner surface of the cylindrical film in contact with each other; a center seal means for sealing the outside of the male fastener; An end seal means is provided.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings of the first embodiment.

First, the package 1 according to the present invention is manufactured in a so-called pillow packaging form (including a gusset form), and as shown in FIGS. 1 and 2, a band-shaped film is formed into a cylindrical shape. The object to be packaged 2 is covered, and a vertical seal is applied to the overlapped end of the side edges of the cylindrical film to form a center seal part 1a, and the openings 1b on both sides of the cylindrical film are sealed in the direction of the frame. The object 2 is hermetically stored to prevent the object 2 from getting damp. This point is similar to the conventional one.

Here, in the present invention, a male and female fastener 3 which can be opened and closed further inward of the center seal portion 1a formed in the package 1 is provided.
are glued together. In addition, the specific structure of this male and female fastener will be described later.

As a result, the center seal portion 1a of the package 1 is opened, the male and female fasteners 3 are opened, and a part of the packaged object 2 stored in the package 1 is taken out. And after that,
When the remaining packaged items 2 are to be stored, they can be sealed and stored by closing the male and female fasteners 3.

That is, by opening and closing the male and female fasteners 3 as needed, the packaged item 2 can be easily taken out and stored for re-examination.

Next, to explain the above-mentioned apparatus for producing a package with an opening/closing fastener, as shown in FIGS. Placed above film 5! ! ! It is formed into a cylindrical shape by the bag device 7 and becomes a cylindrical film 8. On the other hand, it is packaged! JA2 is moved 1llfj by fingers 11 provided at predetermined intervals of the packaged object conveying device
It is sent to the bag making device 7. The article 2 to be packaged sent to the bag-making device 7 is covered in a cylindrical shape with a band-shaped film 6 and is transported forward on a film conveyance path (not shown). This film conveyance path is close to the discharge side of the packaged article conveying device 10 described above, and is located in front of the bag making device W in the vertical direction of travel, which is located approximately on the same line as the packaged article conveying device 10. 11'! of the lfF-shaped film 6 by the center sealing device 12 equipped with a pair of center sealers arranged in the center sealer 12'. I The green polymerized area is heat sealed.

Further, an end seal device 13 disposed in front of the center seal device 12 in the direction of movement seals and cuts in the lateral direction every space between two objects to be packaged within the cylindrical film 8 that moves forward with the object to be packaged 2 therein. Then, the package 1 is manufactured. Further, in this embodiment, the center sealing device 12 also applies a conveying force to the cylindrical film 8, and the center sealing device 12 and a film conveying path (not shown) constitute a film conveying means.

Here, in the device of the present invention: η, a guide device 14 that supplies the male reft fastener 3 continuous and engaged at a predetermined position within the film near the side edge overlapping portion 8a of the cylindrical film 8;
It is generally composed of an adhesive device 16 for adhering the female and male fasteners 3 to the inner surface of the cylindrical film side edge overlapping portion.

On the other hand, the male fastener 3 supplied by the guide device 14
To explain this, the male and female fastener 3 is composed of a male type fastener 3a and a single filter type fastener 3b. As shown in FIG. 5, the male shear fastener 3a has a band-shaped part 23 made of thermoplastic synthetic resin such as polyethylene or polypropylene, and eleven pieces are formed upright on the center line of this band-shaped part 23. The first articulating tool 24a is formed of a convex projection with a wide upper part. Furthermore, the female type fastener 3b has a band-like part 23 similar to the male-type fastener 3a, and a second articulating tool 24t that is integrally formed upright on the center line of this band-like part 23 and has a concave groove in its center. It is formed from. and,
These first. When the second articulating tools 24a and 24b engage with each other, the male U fastener 3 is closed.

The rational fastener 3 is a male fastener 31.
The film conveying device 10 is carried in with the female type fastener 31) and the female type fastener 31) interlocked with each other! The fastener 3 is supplied to a predetermined position of the above-mentioned cylindrical film 8 via a guide device 14. Book guide rail 26-
It consists of 26. This guide rail 26-26
is inserted into the upper opening of the bag-making device 7 described above, and the width of one rail is approximately equal to that of the band-like portion 23 on one side formed on the male iEI fastener 3. The distance of the gap formed between the guide rails 26 and 26 is the distance between the first and second articulating tools 24a of the fastener 3.
, b is formed to be slightly larger than the width. Then, as shown in FIG. 4, within the gap formed between the guide rails 26-26! i The first part of the female fastener 3 that interlocks with the other. With the second articulating tools 24a and 24b inserted, the male +ti fastener 3 is transferred to a predetermined position between the cylindrical films 8. In other words, male type, 1 injection type fastener 3
The guide rail 26 is interposed between the strip portions 23-23 of a and b.

On the other hand, an adhesive device 16, which is an adhesive means for adhering the male and female fasteners 3 supplied through the guide rails 26-26 to both inner surfaces of the cylindrical film 8, is installed near the tip of the guide rail 2626 as shown in FIG. It consists of a pair of left and right welding sealers 27-27. This welding sealer 27 has a heater (not shown) embedded therein, and the first one of all fasteners 3 in the center of the opposing surface. A recessed groove 28 serving as a non-heating part is bored with a width approximately equal to that of the second occlusal parts 24a, b, and the width of the opposing surface other than the recessed groove 28 serving as a heating part is the same as that of the opposing guide rail 26-.
It is formed approximately equal to that of No. 26. Furthermore, left and right welding sealers 27-27 and guide rails 26-26
are arranged in a horizontal line. That is, the first one of the female and male fasteners 3. A concave groove 28 is located at a position opposite to the second articulating tools 24a, b. second articulation tool 24a,
Without transmitting the heat of the welding sealers 27-27 to the cylindrical film 8, only the strip portion 23 of the male zipper 3 is heated by the upper and lower welding sealers 27-27 facing each other.
It is designed to be thermally bonded to the contact point on the inner surface of the At this time, the Pi female fastener 3 heated by the welding sealer 27-27 becomes a /8 molten resin and is thermally bonded to the inner surface of the side edge overlapping portion of the cylindrical film 8 that comes into contact with it, but the band-like portion 23 of the male fastener 3a and 1 band-shaped portion 23 of the fastener 3b
are not bonded because the guide rail 26 is interposed between them, and the first. The second articulating tools 24a and 24b are not heated and thermally bonded to each other because of the grooves 28 of the welding sealer 27. Therefore, the strip portion 23 of the male and female fastener 3 is
Only the inner surface of the flJl edge overlapping portion of the striped film 8 that is in contact with the strip portion 23 is bonded. Then, as the bonded male and female fasteners 3 are transported forward together with the cylindrical film by the film conveying device 10, the continuous male + TLT fasteners 3 are pulled out from the IQ container 25 and placed between the side edge overlapping portions of the cylindrical film. It is now being supplied.

Furthermore, in this embodiment, the end seal device 13 is composed of three end sealers 13a, b, and c. That is, since the male and female fasteners 3 are adhesively formed in the side edge overlapping portion of the cylindrical film 8 continuously in the direction of travel, when end-sealing the cylindrical film 8, the portion where the fastener 3 is formed is It is thicker than other parts, making it difficult to weld. Therefore, in - times of end seal operation, 4! The part of the female fastener 3 cannot be sufficiently sealed, therefore, the first. After performing two preliminary seals with the second end sealers 13a and 13b, the end sealer 13c of the cylinder 3 performs the main sealing and cutting. In order to perform the end sealing operation more smoothly, the sealing width of the end sealer is set to be narrower toward the front in the traveling direction, and the interval between the upper and lower end sealers is also set to become shorter.

Next, the method for manufacturing the package of the present application based on the above-mentioned device will be explained.
1, the items to be packaged 2 are pushed at predetermined intervals and sequentially transferred to the bag making device 7. At the same time, a strip film 6 continuously pulled out from the original film 5 is formed into a cylindrical shape by the bag making device 7, and the objects 2 to be packaged are fed into this cylindrical film 8 at predetermined intervals. . On the other hand, the attt fastener 3 is changed to the male fastener 3 by the kite device 14.
a and the one-way type fastener 3b are supplied slightly inward from the side edge overlapping portion 8a of the cylindrical film 8 while being in an engaged state, and inserted into a predetermined position of the side edge overlapping portion of the cylindrical film 8. It is thermally bonded only to the film that comes into contact with the film. That is, as shown in FIG. 6, the guide rails 26-26 are arranged so that the guide rails 26-26 are interposed between the strip-shaped portion 23 of the male-type fastener 3a and the strip-shaped portion 23 of the female-type fastener 3L). The first one is in the gap. Second articulator 24a, b
Insert. Then, by further moving the male +TFF fastener 3 forward, it is inserted into a predetermined position within the cylindrical film 8. Then, the male and female fasteners 3 are moved along the film transport path at the same speed as the cylindrical film 8 and the object to be packaged 2.
Move from. On the way, first, guide rail 26 2
The male fastener 3a contacts the inner surface of the side edge overlapping portion of the cylindrical film 8 at the welding sealer 27 provided at the tip of the cylindrical film 8.
The strip portion 23 of the thin fastener 3b and the strip portion 23 of the thin fastener 3b are respectively heat-sealed. At this time, as described above, the male fastener 3a and the female fastener 3b are not adhered to each other by the guide rails 26-26. moreover,
The cylindrical film 8 to which the male +ti fastener 3 is bonded and integrated is further transported forward, and the center seal device 12
, the side edge overlapping portion of the cylindrical film 8, that is, the male 1u
The side edge slightly outward from the location where the fastener 3 is adhered is sealed to form a center seal portion 1a, which becomes completely cylindrical. In this state, it is further transported forward, and the end sealing device 13 in the next stage seals and cuts at predetermined intervals, and as shown in FIGS. 1 and 2, the front and rear ends and approximately on the center line of the bottom are sealed. At the same time, a male and female fastener 3 is installed near the inside of the sealed portion approximately on the center line.
I=i A package 1 with an opening and closing zipper is manufactured.

In the above embodiment, the center seal is applied to the film after adhering the male fastener to the film, but the order may be reversed. Adhesion of the fastener and center sealing may be performed at the same time.

Furthermore, the means for adhering the male fastener is not limited to thermal adhesion, and pressure-sensitive adhesives are also used! ! Various types can be used.

(Effects of the Invention) As described above, in the package according to the present invention, even after Jf is opened, the packaged object can be hermetically preserved until it is resealed.

Also, according to the present invention! ! ! According to the transmission method and equipment,
The above package can be manufactured easily and reliably. Furthermore, since the male type fastener and the female type fastener are bonded to the film in an integrated state, positional accuracy is not required to be very high when adhering the male type fastener to the film, making handling easier.

Additionally, since a center seal is applied to the outer side of the male zipper, the airtightness of the package is further improved when not in use.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the package according to the present invention;
2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is a side view showing an embodiment of the device according to the present invention, FIG. FIG. 6 is a perspective view showing a female fastener used, and FIG. 6 is an enlarged sectional view showing a state in which the fastener is adhered to a film. ■...Packaging body 2...Packaged object 3...
a Male fastener 3a...male fastener 3b...
・Female type fastener 6... Strip film 8... Cylindrical film 8a... Side edge overlapping portion 10... Packaging Th conveyance device 12... Center seal device 13.
・・End seal device 14・Guide device;〃16・
・Adhesive device 23 ・Striped portion 24a ・・
First articulating tool 24b...Second articulating tool 26...
Guide rail 21...8 sealer Patent applicant Dai-n, Agent of Kikai Kogyo Co., Ltd.
Patent Attorney - Ken Iroki Patent Attorney Masatoshi Matsumoto Figure 1 h b Figure 2

Claims (3)

[Claims] (1) A strip film is formed into a cylindrical shape to cover the packaged item, and a vertical seal is applied to the overlapping end of the side edge of the cylindrical film to form a center seal part, and the openings on both sides of the cylindrical film are A packaging body in which the packaged item is hermetically stored by sealing it in the lateral direction, characterized in that a zipper that can be opened and closed is disposed along the inner side of the center seal part. packaging. (2) The objects to be packaged are conveyed at predetermined intervals, and the objects to be packaged are filled into a cylindrical film formed by cylindrical strips of film that are continuously pulled out. A band-shaped female and male fastener in which a male fastener and a male fastener are engaged is inserted between the side edge overlapping parts, and then the male fastener and the male fastener are adhered to the inner surface of the cylindrical film in contact with each other. At the same time, after applying a vertical seal to the outer side of the male and female fasteners adhered to the side edge overlapping portion of the cylindrical film, seal cuts were performed at predetermined intervals in the lateral direction of the traveling direction of the cylindrical film. A method for manufacturing a package with an opening/closing zipper, characterized in that: (3) a packaged object conveying means for conveying the packaged articles at predetermined intervals; a means for forming a cylindrical film into a strip-shaped film that is disposed on the discharge side of the packaged article conveying means and is continuously pulled out; A film conveyance means for conveying the article to be packaged while being supplied into the cylindrical film; and a male fastener disposed on the film loading side of the film conveyance means and located near the side edge overlap portion of the cylindrical film. a guide means for inserting into a predetermined position a band-shaped male and female fastener in which a male and female fastener are engaged with each other; and a cylindrical film disposed in the middle of the film conveying means and abutting the male fastener and the female fastener, respectively. an adhesive means for adhering to the polymerized inner surface of the cylindrical film; and a center seal means for vertically sealing the outer side of the male and female fasteners disposed at an intermediate point of the film conveying means and adhered to the side edge overlap portion of the cylindrical film. , an end sealing means disposed on the film discharge side of the film transporting means for sealing and cutting the cylindrical film at predetermined intervals in the transverse direction of the traveling direction of the cylindrical film. Manufacturing equipment.