JP4118568B2 - Method of manufacturing vertical pillow package with folds - Google Patents

Description

[0001]
[Industrial application fields]
The present invention is capable of continuously mass-producing pleated wrapping bodies in which the folds hang down from the peripheral edge of the bottom surface portion to conceal the bottom surface portion and have a stable self-standing property and feel a tight packaging form. The present invention relates to a method of manufacturing a vertical pillow package with folds.
[0002]
[Prior art]
In the conventional vertical bag making filling and packaging method, the packaging material is drawn out from the original roll of packaging material and is hung on the former so that the package filling cylinder passed through the inside of the former is bent into a cylindrical shape. Then, both ends of the packaging material are overlapped in the form of a palm, or envelopes are stacked and heat sealed, and then dropped as a packaging cylinder down the packaging filling cylinder, and the packaging is dropped through the packaging filling cylinder In addition to filling, a bottom heat seal and a top heat seal are applied on the lower side and upper side of the package to be wrapped.
And when making a two-piece heat seal with a bottom heat seal and a top heat seal, it is manufactured into a vertical pillow package with a bottom gusset and a top gusset by inserting a thrust bar in the vertical direction from the side direction. To be done. Furthermore, both ends of the packaging material in which the package-filling cylinder is wound substantially once are heat-sealed, and ribs are attached to the four sides as a packaging cylinder.
[0003]
[Problems to be solved by the invention]
The vertical pillow packaging body which is a square bottom manufactured by the above-described conventional vertical bag making filling packaging method cannot form a beautiful square bottom.
[0004]
The present invention is capable of continuously mass-producing pleated wrapping bodies in which the folds hang down from the peripheral edge of the bottom surface portion to conceal the bottom surface portion and have a stable self-standing property and feel a tight packaging form. It aims at providing the manufacturing method of the vertical pillow package with a fold.
[0005]
The invention described in [Claim 1] is that the packaging material is fed out from the original roll of the packaging material, the inner surfaces are heat-sealed in a palm-like shape, and the pleats extending in the width direction of the packaging material are collapsed to the required dimensions. Then, the packaging material is formed into a cylindrical shape so that the packaging-filled cylinder passed through the former is wound around the former by winding the pleated packaging material on the former. Both ends of the seal are connected and sealed as a wrapping tube, and are hung downward from the package filling cylinder. A seal is cut and a bag is cut between the two heat seals, and the cut package is turned upside down so that the folds hang down from the substantially peripheral edge of the bottom surface and the folds hide the bottom surface. have the autonomy of the state A method for producing a pleated vertical pillow packaging, characterized in that to produce a longitudinal pillow packaging that.
[0006]
The invention described in [Claim 2] is formed such that the inner surfaces of the packaging material are heat-sealed in the shape of a palm and are folded toward the upstream side and extend in the width direction of the packaging material so as to have an arrangement pitch of a required dimension. The wrapping material with the folds is drawn out from the raw roll rolled up as a wrapping material, and is hung on the former so that the package-filled cylinder passed through the inside of the former is bent into a cylindrical shape. Both ends of the packaging material are connected and sealed, and hung down as a packaging cylinder to the lower part of the package filling cylinder. In addition, the bag is cut off between the two heat seals, and the cut package is turned upside down, so that the folds hang down to the substantially peripheral edge of the bottom portion and the folds are the bottom portion. Hidden state A method for producing a pleated vertical pillow packaging, characterized in that to produce a longitudinal pillow packaging having a self-supporting.
[0007]
In the invention according to claim 3, the upstream and downstream slit forming plates are in close contact with the outer surface of the packaging material, and the downstream slit forming plate and the corresponding packaging material when the intermittent running of the packaging material is stopped. After fixing the packaging material with the presser plate, the fold folding plate is pushed into the gap between the upstream and downstream slit forming plates and the upstream side of the packaging material is pulled to fold, and then the upstream slit The upstream side of the fold fold of the packaging material is fixed by the forming plate and the corresponding packaging material pressing plate, and then the fold folding plate is retracted and returned, and then the upstream and downstream slit forming plates are supported. A pair of crease heat sealers provided are closed and crease heat seals are applied to the fold folds, and then the pair of crease heat sealers are opened and moved upward. The vertical pillow packaging body with pleats according to claim 1 or 2, wherein the packaging material pressing plates on the side and the downstream side are moved back and returned, and then the packaging material is intermittently run next. It is a manufacturing method.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1: shows the general | schematic whole perspective view of the vertical bag making filling packaging apparatus which can manufacture the vertical pillow packaging body with a pleat.
FIG. 2 is a horizontal sectional view of a required portion of the vertical bag making filling and packaging apparatus for explaining the bag making process.
The vertical bag making filling and packaging apparatus shown in FIGS. 1 and 2 will be described.
The packaging material F fed out from the packaging material roll R is pulled and run by the packaging material feeding roll 2 which is hung on the guide roll 1 and driven to increase and decrease by a servo motor (not shown) and the rotatable nip roll 3. Next, after being hung on the step roll 4, it is hung on the guide rolls 5 and 6.
The step roll 4 serves to keep the feeding resistance light and constant with respect to the withdrawal of the packaging material F from the downstream side. The packaging material supply roll 2 reduces the film supply amount when the step roll 4 is lowered to the lower limit position, and increases the film supply amount when it is raised to the upper limit position.
[0009]
Next, the packaging material F is passed through the crease applicator 7, where the inner surfaces are heat-sealed in the shape of a palm, and the crease h is attached so as to extend in a direction perpendicular to the traveling direction. As a result, the fold h is tilted backward in the transfer direction.
The crease applicator 7 includes upstream and downstream slit forming plates 7a and 7b that are in close contact with the lower surface (outer surface) of the packaging material F, and a crease heat sealer corresponding to the lower side of the slit forming plates 7a and 7b. 7c and 7d, and the packaging material presser plates 7e and 7f provided on the upper side of the slit forming plates 7a and 7b and pressing the packaging material F against the slit forming plates 7a and 7b, and the slits of the slit forming plates 7a and 7b. And a fold folding plate 7g which is provided on the upper side of the packaging material F and descends into the slit to fold the sheet.
The formation of the fold h is performed when the packaging material F is stopped intermittently. First, the packaging material pressing plate 7f is lowered and the packaging material F is pressed against the slit forming plate 7b. Then, the folding plate 7g is lowered and the packaging material F is pushed between the slits of the slit forming plates 7a and 7b to be folded. Next, the packaging material presser plate 7e is lowered, the packaging material F is pressed against the slit forming plate 7a, the folding plate 7g is raised and returned, and then the crease heat sealers 7c and 7d are closed to close the packaging material F. Heat sealing is applied to the fold folding palms to form folds h, and then the crease heat sealers 7c and 7d are opened and the wrapping material holding plates 7e and 7f are raised and returned to allow the wrapping material F to travel. To do.
It is also possible to carry out a procedure in which the fold folding plate 7g is first lowered to perform fold folding, and then lowered to the packaging material pressing plates 7e and 7f to press the packaging material F and raise the fold folding plate 7g. is there.
Although a pair of rotation free rolls are used as the fold-falling means 8 in the drawing, the present invention is not limited to this, and a clearance for allowing the packaging material F to travel and tilting the fold 1 to the upstream side, for example, 1.5 mm. A pair of upper and lower flat plates may be provided so that there is a gap of ˜3.0 mm.
[0010]
Next, the packaging material F is hung on the guide roll 9 and then on the collar portion 10a of the former 10, and as shown in FIG. 2 (a), the cylindrical portion 10b having a C-shaped section in which the front side of the former 10 is open. And the packing material filling cylinder 11 passing through the inside of the packaging material filling cylinder 11 is wound around the packaging material F so that both edges of the packaging material F protrude from the front side of the packaging material filling cylinder 11. The connecting tape T which is bent so as to be combined and fed out from a reel W formed by winding a three-layer connecting tape made of a double-sided sealant film is passed through the front side of the package-filling cylinder 11 and both edges of the packaging material F As shown in FIG. 2 (b), the center heat seal bar 21 sandwiches the connecting tape T between the both end edges of the packaging material F and the package-filled cylinder 11 as a cradle. End of packaging material F by pressing and heat-sealing It is connected sealed to each other the packaging cylinder H.
In addition, since the pleat h is facing upward, the packaging cylinder H can pass through the gap between the cylinder portion 10b of the former 10 and the package-filling cylinder 11.
[0011]
Next, the packaging cylinder H changes according to the state in which the cross-sectional shape of the article-filling cylinder 11 changes, as shown in FIGS. 2 (c)-(d)-(e). In FIG. 2 (c), the packaging cylinder H changes to a rectangle, and in FIG. 2 (d), the packaging cylinder H has ribs 11a in which grooves are formed on both sides of the article-filling cylinder 11, and guides 12, 2 (e), the ribs forming the grooves on both sides of the article-filling cylinder 11 are eliminated, and the widths of the guides 12 and 12 are correspondingly increased. The ribs are folded into a rib shape through the gap with the attached heat seal bar 13 and run intermittently. When the rib attached heat seal bars 13 and 13 are clamped at the time of stopping, the ribs m are formed. Then, as shown in FIG. 2 (f), the packaging cylinder H in which the ribs m are formed is pulled down by the belts 14 and 14 of the film feeding device and hangs down below the package-filling cylinder 11.
Each fold h is attached upward. The pitch at which the folds h are provided is determined by the height of the bag, the size for forming the bottom surface from the fold to the bottom heat seal (preferably approximately the same as the folding size of the side gusset), and the size required for the bottom heat seal. The length is equal to the total dimension. The film feeding device performs intermittent feeding having a length equal to the pitch at which the fold h is provided.
[0012]
Next, as shown in FIG. 1, the packaging cylinder H that hangs down below the article-filling cylinder 11 is guided by four corner guides 15 in the packaging cylinder that hang from the lower end of the article-filling cylinder 11 and is rectangular. It is maintained in the cylinder, and the lower side is heated by a pair of bottom gusset forming thrust bars 16 that are vertically positioned across the cut mark position and that have a bifurcated tip at the center of the width of the left and right side surfaces. A top gusset that is folded inside the top heat seal of the vertical pillow package to be cut and cut off, and a bottom gusset that is folded inside the bottom heat seal that is the next vertical pillow package P is formed. The The packaging tube H is subjected to two heat seals (top heat seal and bottom heat seal) by the horizontal heat sealers 17 and 17, and two heat seals by a cutter (not shown) incorporated in one horizontal heat sealer 17. A cut is inserted between the two to separate the bag.
While the two heat seals are being performed on the packaging cylinder H by the horizontal heat sealers 17, 17, a certain amount of products to be packaged are put into the hopper 20, dropped through the packaging material filling cylinder 11, and the horizontal heat sealers 17, 17. Filled on top. When the horizontal heat sealers 17 and 17 are opened, the film is fed by the belts 14 and 14 of the film feeding device. Repeat the above packaging cycle.
The vertical pillow package P to be separated has a fold h at its upper end. Therefore, both side surfaces of the vertical pillow package are held by the vacuum holding / reversing means 18 and are turned upside down after being detached. It is placed on the conveyor 19 while being attached to the lower end and transferred.
In addition, since the vertical pillow package P to be separated is turned upside down and has a fold h at the lower end, the top heat seal and the bottom heat seal are considered to be a normal vertical bag making filling packaging method when considering the package. This is the opposite of the case.
[0013]
FIG. 3 is a perspective view of a vertical pillow package with folds manufactured by the above-described vertical bag making filling and packaging apparatus.
This vertical pillow package P with folds has a triangular pocket-shaped bottom gusset on both sides with respect to the lower portion of the fold h, and a flat bottom surface is formed on the both sides. In addition, the folds h are coplanar with the front, right side, left side, and rear side and do not exhibit an independent appearance. It becomes a sex square bottom bag.
[0014]
The peripheral range of the present invention will be described.
In the vertical bag making and filling apparatus capable of manufacturing the vertical pillow package with pleats shown in FIG. 1, the packaging cylinder H may not be provided with a rib. In this case, the article-filling cylinder 11 can be a cylinder having the same diameter from the upper end to the lower end. Further, when the bottom gusset and the top gusset are not provided, it is not necessary to provide the packaging cylinder inner corner guide 15 at the lower end of the article-filling cylinder 11. Further, hems (ridge lines with fold lines) may be provided without providing ribs.
[0015]
Using the vertical bag-filling and packaging apparatus capable of producing the vertical pillow package with pleats shown in FIG. 1, the closing of both end edges of the packaging material F on the front side of the package-filling cylinder 11 is a palm-type heat seal. Alternatively, it may be a so-called envelope-sealed seal in which the inner surface of the other edge is in close contact with the outer surface of one edge.
In the case of an envelope tension seal, the outer portion of the double edge of the fold h overlapping on the inside is notched into the required shape, and the inner portion of the double edge of the fold h overlapping on the outer side is set to the required shape. When the cutouts are overlapped and heat sealed, the folds h on both sides of the closed portion become a single sheet. Further, the closing position of the both end edges in the horizontal direction of the packaging material may be not the center of the rear surface portion but, for example, the vicinity of the ridge between the right side surface and the rear surface portion. These modifications can be realized by slightly changing the vertical bag making filling and packaging apparatus shown in FIG. Further, the fold h may be provided at the upper end and the center of the height of the bag.
The raw roll R mounted on the vertical bag making and filling apparatus capable of producing the vertical pillow package shown in FIG. 1 is fed upstream from the original roll of the packaging material, and the inner surfaces are heat sealed in the shape of a palm. An original fabric roll formed by winding a pleated wrapping material formed so that a fold extending in the width direction of the wrapping material and having an arrangement pitch of a required dimension may be wound. That is, the manufacturing method of the vertical pillow package with folds according to the present invention may be performed in outline for adding folds h to the packaging material. When folds are performed in outline, the folds are usually rolled down backwards in the running direction. Therefore, if the original roll of wrapping material with folds is placed on the vertical pillow packaging machine, the folds will be moved in the running direction. Since it will turn forward and get caught by the former, rewind the wrapping material roll or apply a device that tilts the wrapping to the front in the running direction after attaching the crease to the wrapping material. Take it up through this device. In the manufacturing method of the vertical pillow package with folds according to [Claim 1] and [Claim 2], folds may be made with a crease apparatus different from the apparatus shown in the embodiment. It suffices if the inner surfaces are heat-sealed in the shape of a palm and tilted upstream to form a pleat extending in the width direction of the packaging material.
[0016]
The packaging material F for producing the vertical pillow package with folds is made of, for example, the following laminated film.
(1) OPP 20μm / Adhesive / LLDPE 20μm ・ ・ ・ ・ (Outer layer / Inner layer: Sealant)
(2) OPP 20μm / adhesive / uniaxially stretched or biaxially stretched HDPE / adhesive / LLDPE (... outer layer / intermediate layer / inner layer: sealant)
(3) OPP 20μm / adhesive / aluminum foil / adhesive / LLDPE 20μm ... (outer layer / intermediate layer / inner layer: sealant)
(4) OPP (silica or alumina deposition layer) / adhesive / uniaxially or biaxially stretched HDPE / adhesive / LLDPE 20 μm (outer layer / intermediate layer / inner layer: sealant)
(5) PET 20 μm / adhesive / aluminum foil / adhesive / OPP 20 μm / adhesive / LLDPE 20 μm (outer layer / intermediate layer / intermediate layer / intermediate layer / inner layer: sealant)
(6) Paper / Adhesive / LLDPE 50μm ... (Outer layer / Inner layer: Sealant)
(7) PET 12μm / Adhesive / LLDPE 20μm ・ ・ ・ ・ (Outer layer / Inner layer: Sealant)
(8) AL 19μm / Adhesive / LLDPE 70μm ... (Outer layer / Inner layer: Sealant)
(9) PET / SiOx 12μm / Adhesive / LLDPE 100μm ・ ・ ・ ・ (Outer layer / Inner layer: Sealant)
(10) CPP 5μm ・ OPP 30μm co-extrusion / adhesive / CPP 20μm ・ ・ ・ ・ (Outer layer / Inner layer; Inner and outer surface sealant)
In order to form the fold h by heat sealing, the structure of the packaging material F has a sealant film on the inner surface as can be seen from the illustration of the laminated film. In addition, the packaging material F may be comprised from the sealant film single-piece | unit.
[0017]
【The invention's effect】
As described above, the manufacturing method of a vertical pillow package with a fold according to the present invention is a vertical bag-filling and packaging method, in which the inner surface is bonded to each other in the shape of a palm when the packaging material is flat to form a folded fold. Since the structure is made of a self-supporting square bottom bag that hides the bottom surface with the folds, there is no risk of wrinkles occurring on the folds and a beautiful fold is obtained, and in particular, it does not exhibit an independent appearance as a fold. Forms a flat package with a pleat in a form that forms a flat surface with the peripheral surface, makes it feel tightly packed, has an excellent aesthetic appearance as a packaging form, and ensures perfect sealing of the folds, making it suitable as a liquid container. Can be mass-produced. Moreover, according to the manufacturing method of the vertical pillow package with folds of the present invention, since the downstream side of the wrapping material is not pulled when forming the folds, the gap between the folds becomes accurate and the vertical pillow package with folds is accurate. When the manufacturing method of a body is implemented, a package becomes a uniform size.
The method for manufacturing a vertical pillow package with folds according to the present invention allows the fold length (the length of the folds along the running direction of the wrapping material) to be a desired size, so that the packaging material is thick and strong. A vertical pillow package that can be displayed in the form of a bag using a large height of the folds and stacked in three steps.
[Brief description of the drawings]
FIG. 1 is a schematic overall perspective view of a vertical bag-filling / packaging apparatus capable of producing a foldable vertical pillow package according to the present invention.
FIG. 2 is a horizontal sectional view of a required portion of a vertical bag making filling and packaging apparatus for explaining a bag making process.
FIG. 3 is a perspective view of a vertical pillow package with folds manufactured by the vertical bag making and filling apparatus of FIG. 1;
[Explanation of symbols]
R: raw material roll of packaging material, F: packaging material, 1 ... guide roll, 2 ... packaging material feed roll, 3 ... nip roll, 4 ... step roll, 5, 6 ... Guide roll, 7 ... Folding device, 7a, 7b ... Slit forming plate, 7c, 7d ... Heat sealer for crease, 7e, 7f ... Packing material pressing plate, 7g Fold folding plate, 8 ... Folding means, 9 ... Guide roll, 10 ... Former, 10a ... Collar part, 10b ... Cylinder part, 11 ... Packing article filling cylinder, T ... connecting tape, H ... packaging cylinder, h ... fold, 12 ... guide, 13 ... heat seal bar with rib, m ... rib, 14 ... film feeder Belt, 15 ... Four corner guides in packaging cylinder, 16 ... Bottom gusset forming thrust bar, 17 ... Heat sealer, P ... vertical pillow packaging, 18 ... Vacuum type holding and inverting means, 19 ... conveyer, 20 ... hopper 21 ... center heat seal bar,

Claims (3)

The wrapping material is fed out from the original material roll of the wrapping material, the inner surfaces are heat-sealed in a palm-like shape, and the folds extending in the width direction of the wrapping material are formed so as to have an arrangement pitch of the required dimensions, and then The wrapping material with a pleat is hung on the former, and the package-filled cylinder passed through the former is bent into a cylindrical shape so that both ends of the packaging material are connected and sealed as a packaging cylinder. It hangs down to the bottom of the package filling cylinder, and then the two strips of heat sealer are used to heat the two strips at the position away from the folds of the packaging barrel at the bottom of the package filling cylinder. A vertical pillow packaging body having a self-supporting property in which the folds are hung down to the substantially peripheral edge of the bottom surface portion and the folds concealed the bottom surface portion by inserting a cut of the bag separation and turning the separated package upside down. Manufacture Method of manufacturing a pleated vertical pillow packaging characterized and. An original roll in which the inner surfaces of the packaging material are heat-sealed in the shape of a palm and are folded up toward the upstream side so that the folds extending in the width direction of the packaging material are formed so as to have an arrangement pitch of the required dimensions and wound as a packaging material with pleats The packaging material with pleats is drawn out from the former, hung on the former, bent into a cylindrical shape so that the packaging cylinder filled inside the former is wound almost once, and both ends of the packaging material are connected and sealed. As shown below, the two parts are heat-sealed by two heat sealers at a position away from the crease of the packaging cylinder below the filling cylinder. A vertical pillow having a self-supporting state in which the folds hang around the substantially peripheral edge of the bottom surface portion and the folds conceal the bottom surface portion by inserting a cut of the bag between them and turning the separated package upside down. Packaging Method of manufacturing a pleated vertical pillow packaging, characterized in that to produce the. The upstream and downstream slit forming plates are in close contact with the outer surface of the packaging material, and the packaging material is fixed by the downstream slit forming plate and the corresponding packaging material presser plate when the packaging material is stopped intermittently. The fold folding plate is pushed into the gap between the upstream and downstream slit forming plates, and the upstream side of the packaging material is pulled to fold, and then the upstream slit forming plate and the corresponding packaging material pressing plate And fixing the upstream side of the fold folding of the packaging material, and then retracting and returning the fold folding plate, and then a pair of crease heat sealers provided corresponding to the upstream and downstream slit forming plates To close the fold-folded portion, and then apply a heat-sealing to the fold-folded portion, and then open a pair of crease-sealing heat sealers, and upstream and downstream packaging presser plates The retracted return, then, the production method of and performing the next intermittent travel of the packaging material [Claim 1] or pleated vertical pillow packaging body according to [claim 2].

Images