JPH10211901A - Production of bag with plug and bag making and filling method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently produce a plugged bag wherein a plug is attached to the seam edge of a twofold packing material. SOLUTION: A packing material X sterilized in a sterilizing part 20 is sent from above to below while folded double laterally in a folding part A, and an attaching part (y) of a plug Y is inserted into the gap between seam edges of the packing material X at a plug supply part B. The seam edges are mutually bonded together with the plug Y thermally at a vertical seal part C to perform vertical sealing. Thereafter, first lateral sealing is applied to the packing material on the lower side of the plug Y from the seam edges of the folded-back edge at a lateral seal part E. The region surrounded by the folded-back edge, the vertical seal and the first seal of the packing material X is filled with content at a filing part D. Finally, second sealing is performed on the upper side of the plug Y from the seam edges to the folded back edge at the lateral seal part E, and the first and second seal parts are cut at a cutting part F to form a bag Z with plug.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for making a bag with a plug, such as a pouch container with a plug, and a method for filling and filling the bag. The present invention relates to a bag making method and a bag making and filling method for a bag with a stopper attached to a joint edge of a folded package material.

[0002]

2. Description of the Related Art There is a bag with a plug, such as a pouch container with a plug, as shown in FIG. 5, for example. The bag 50 with a spout is made by folding a packaging material 51 such as a film having thermal adhesiveness into two,
Although the three sides except the fold part 51a are formed into a bag shape by heat bonding, the plug 52 is attached to the fold part 51a of the packaging material 51 to be folded in two by heat bonding.

[0003] By the way, as described above, the plugged bag 50 in which the plug 52 is attached to the fold portion 51a of the packaging material 51 is provided with the plug 5 in the fold portion 51a of the packaging material 51.
In a state where the mounting hole 2 is formed and the plug 52 is passed through the mounting hole, the flange portion 52a of the plug 52 is thermally bonded to the periphery of the forming hole of the packaging material 51, so that the plug 52 is packaged. Since it is fixed to the material 51, when the packaging material 51 is folded into two and formed into a bag shape, the flange portion 52 of the plug 52
There is a problem that the packaging material 51 is bent at the edge of a, and the packaging material 51 is easily broken at the bent portion, which causes leakage of the contents.

For this reason, recently, as shown in FIG.
The attachment part y of the plug Y is not a fold part of the packaging material X,
A plug-attached bag Z of a type that is sandwiched between joint edges and thermally bonded to the joint edges together with the plug Y has been developed.

[0005] Therefore, an object of the present invention is to provide a bag with a plug which can efficiently manufacture a bag with a plug attached to the joining edge of the folded packaging material as described above. To provide a bag making method and a bag making and filling method.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a belt-shaped packaging material having a heat-adhesive property.
The step of sending out while folding in two in the width direction, the step of sandwiching a mounting portion of a thermo-adhesive plug between the joining edges of the folded folding packaging material, and the mounting portion of the plug is sandwiched. A step of performing a vertical seal by thermally bonding the joint edges of the packaging material to each other together with the mounting portion of the plug, and the packaging material having been subjected to the vertical sealing, the plug of the plug in the feeding direction. Before and after, a step of performing a horizontal seal by sequentially heat-bonding from the seam edge to the folded edge, and a bag-forming method of a bag with a plug, and a band-shaped packaging material having heat bonding property, A step of sending out from above while folding in two in the width direction, a step of sandwiching a mounting portion of a thermo-adhesive plug between joint edges of the folded folding packaging material, and attaching the plug. The package in which the part is sandwiched A step of performing vertical sealing by thermally bonding the seam edges of the material together with the attachment portion of the plug, and placing the vertically sealed packaging material on the lower side of the plug at the seam. Performing a first horizontal seal by thermal bonding from the edge to the folded edge; and from above into a region surrounded by the folded edge, the vertical seal, and the first horizontal seal of the folded packaging material. A step of filling the contents and a step of performing a second horizontal seal by thermally bonding the packing material filled with the contents from the joint edge to the folded edge above the plug. And a method for filling and filling a bag with a spout provided with the following.

The above-mentioned plug is a plug that can be poured out by cutting off the tip or opening the screw cap.

[0008]

Embodiments will be described below with reference to the drawings. FIG. 1 shows a bag-making and filling device 1 for a bag with a stopper for filling the contents while producing the bag with a stopper Z shown in FIG.

The bag with a spout Z comprises an inner layer made of a thermoplastic resin film such as polyethylene or polypropylene, a biaxially stretched polyester film, a biaxially stretched polyamide film, a biaxially stretched polypropylene film, or the like, or these films. A packaging material X which is a laminated film composed of a known gas barrier film or the like and an outer surface layer laminated thereon.
And a plug Y of the same material as the inner layer of the packaging material X. The bag Z with the plug is filled with a liquid content such as a sauce.

The bag-making and filling apparatus 1 comprises a delivery section 10 for continuously feeding the band-shaped packaging material X wound up in a roll form, and a package for sterilizing the delivered band-shaped packaging material X. It comprises a sterilizing section 20 for the material X and a bag making and filling section 30 for filling the contents while making the sterilized strip-shaped packaging material X. The bag making and filling section 30 is installed in a sterile room. Have been.

The sterilization section 20 has a sterilization tank 21 filled with a hydrogen peroxide solution, and the packaging material X sent from the sending section 10 is introduced into the sterilization tank 21 by the guide rollers 11. It is configured to be sterilized by being guided and immersed in a hydrogen peroxide solution. In addition,
The packaging material X sterilized by the sterilizing section 20 is guided by the guide rollers 22, 23 and 24 to the next bag making and filling section 3.
While being guided to zero, the packaging material X immersed in the hydrogen peroxide solution is dried on the way.

In the bag making and filling section 30, the sterilizing section 20
The packaging material X sterilized by the above is sent out from the upper side to the lower side, and a folding part A that folds the packaging material X in the width direction thereof along the sending direction of the packaging material X, a spout A supply section B, a vertical seal section C, a filling section D, a horizontal seal section E, and a cutting section F are sequentially arranged.

First, in the folding section A, the packaging material X
The packaging material X is folded in two in the width direction along a triangular guide plate 31 disposed on the path of
As a result, the seam edges of the folded packaging material X are sandwiched in a state of being overlapped with each other.

In the plug supply section B, the plug Y conveyed by a parts feeder (not shown) or the like is connected to the plug Y in FIG.
As shown in (b), the packaging material X folded in half is gripped by the plug gripping means 33 that moves along the joint edge, and the mounting portion y of the plug Y is held by the gripping roller 3.
2 is sandwiched between the joining edges of the packaging material X to be folded in two from the near side.

In this manner, the packaging material X in which the attachment portion y of the plug Y is sandwiched between the joint edges is shown in FIG.
As shown in (b), in the vertical seal portion C, the joining edge is heat-pressed by a pair of vertical seal bars 34 and thermally bonded together with the mounting portion y of the plug Y, A vertical seal is applied.

As shown in FIG. 1, the packing material X having the seam edge vertically sealed in this manner is such that, in the horizontal seal portion E, the lower side of the plug Y is from the seam edge. Heat-pressing is performed by a pair of horizontal seal bars 35 over the folded edge, and they are thermally bonded to each other, so that the first
Is performed. Then, in the filling section D, a predetermined amount of the content is filled via the filling nozzle 36 in a region surrounded by the folded edge, the vertical seal, and the first horizontal seal of the folded packaging material X. .

Finally, by the horizontal seal bar 35,
After performing the second horizontal sealing by thermally bonding the upper side of the plug Y from the joint edge to the folded edge, the knife 37 at the cutting portion F uses the first and second horizontal seals. When the sealing portion is sequentially cut at the central portion in the width direction, a bag Z with a plug filled with the contents as shown in FIG. 3 is completed.

The above-mentioned second horizontal seal is provided with a first seal for a portion corresponding to a bag with a plug to be sent next.
Therefore, in a series of bag making and filling steps, the second horizontal seal of the previous plugged bag and the first horizontal seal of the next plugged bag are simultaneously performed.

As described above, in this method for making and filling a bag with a plug, when the packaging material X is folded in two, the mounting portion y of the plug Y is folded between the joining edges of the packaging material X to be folded in two. And the sealing edge is vertically sealed together with the mounting portion y of the plug Y, so that a plurality of bags Z with plugs can be efficiently manufactured from the band-shaped packaging material X.

Further, since the bag is made in a state where the band-shaped packaging material X is folded in two, the bag making efficiency is high and the design of the front and back of the bag can be easily matched.

In the above-described embodiment, the bag making and the filling of the contents are performed at the same time.
The contents can be separately filled using another filling machine and resealed. When filling the contents with another filling machine and resealing, the double-folded folded edge side of the plugged bag Z in the above embodiment manufactured in an aseptic state may be cut off to form a filling port. If the plug has a screw cap or the like, the screw cap may be once removed, the contents may be filled from the plug, and the screw cap may be sealed again. In this case, since the inside of the bag is in a sterile state, there is an advantage that washing and the like of the inside become unnecessary.

In this embodiment, in order to fill the contents at the same time as the bag making, the packing material X is sent out from the upper part to the lower part at the bag making and filling part 30. When the filling of the contents is not performed, that is, when only the bag making is performed, it is not necessary to send out the packaging material X in the vertical direction. It can also be done.

In this embodiment, the plug Y is sandwiched between the joining edges of the packaging material X from above the sandwiching roller 32 of the folding portion A. After the joining edges are overlapped, a gap forming member is formed below the joining edges between the overlapping joining edges so as to form a gap enough to allow the mounting portion y of the plug Y to be inserted. The plug Y may be inserted from the formed gap. Especially,
When sending out the packaging material X horizontally, the nipping roller 3
In such a case, it is preferable to provide the gap forming member described above.

Further, in the above-described embodiment, the spouted bags connected via the horizontal seal portion are cut by the knife 37 to be separated into individual spouted bags Z. It is not necessary to perform the cutting up to the cutting in the bag making and filling step, and the cutting may be performed in a step different from the series of bag making and filling steps.

Further, instead of cutting the horizontal seal portion with the knife 37, a perforation for cutting is formed, and if necessary, the perforated bag is cut by breaking at the perforation portion. May be separated.

In the above-described embodiment, the packaging material X
Is simply folded in two by the guide plate 31, but by folding the folded edge of the folded packaging material X further inward using another guide plate, FIG.
It is also possible to make a bag Za with a plug as shown in (a) and (b). In FIG. 4, Xa indicates a folded edge of the packaging material X.

[0027]

As described above, according to the bag making method and the bag making and filling method of the bag with the plug of the present invention, when the three-side seal is applied, the plug is attached between the joining edges of the folded packaging material. Since the portion is sandwiched and a vertical seal is applied to the joint edge in that state, a plurality of bags with a plug can be efficiently manufactured from the band-shaped packaging material.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an apparatus for carrying out a bag making and filling method according to the present invention.

FIG. 2 is a detailed view showing a plug supply unit according to the first embodiment.

FIG. 3 is a perspective view showing a bag with a stopper manufactured by the above-described living body filling method.

FIG. 4 is a perspective view showing different types of plugged bags.

FIG. 5 is a perspective view showing one embodiment of a bag with a plug.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag-making and filling apparatus 10 Sending part 20 Sterilization part 30 Bag-making and filling part 31 Guide plate 32 Nipping roller 33 Plug holding means 34 Vertical seal bar 35 Horizontal seal bar 36 Filling nozzle 37 Knife A Folding part B Plug supply part C Vertical Sealing part D Filling part E Horizontal sealing part F Cutting part X Packaging material Y Plug Z Bag with plug

Claims (2)

[Claims] 1. A step of sending out a heat-adhesive band-shaped packaging material while folding it in two in the width direction thereof, and inserting a thermo-adhesive spout between the joining edges of the folded folding packaging material. A step of sandwiching an attachment portion, a step of performing vertical sealing by thermally bonding together a joint edge of the packaging material in which the attachment portion of the plug is sandwiched together with the attachment portion of the plug, Performing a horizontal seal by successively thermally bonding the wrapped material that has been made, before and after the plug in the feeding direction, from the joint edge to the folded edge, thereby performing a horizontal seal. Bag way. 2. A step of sending a band-shaped packaging material having a heat-adhesive property from the top to the bottom while folding the packaging material in two in the width direction; A step of sandwiching the plug attaching portion having: and a vertical seal is performed by thermally bonding the jointed edges of the packaging material sandwiched by the plug attaching portion together with the plug attaching portion to each other. A step of performing a first horizontal seal by thermally bonding the vertically sealed packaging material from the joint edge to the folded edge below the plug. A step of filling contents from above into a region surrounded by the folded edge, the vertical seal and the first horizontal seal of the packaging material; and placing the packaging material filled with the contents on the upper side of the plug. , From the joint edge to the folded edge Bag-making method of filling spout-equipped bags that includes a step of performing a second transverse seal by heat adhesion me.