JP2023056226A - Plural-row vertical filling and packaging machine and plural-row package - Google Patents

Abstract

To provide a plural-row filling and packaging machine capable of manufacturing filling packages of articles to be packaged while remaining connected in parallel without generating a vertical wrinkle in a lateral sealing part, and plural-row packages manufactured by the plural-row filling and packaging machine.SOLUTION: A plural-row vertical filling and packaging machine, for continuously manufacturing plural rows of filling packages formed by filling articles to be packaged at the same time, comprises: a pair of vertical seal rolls for forming two side part vertical seal parts and continuously forming cutting vertical seal part by continuously vertical-sealing one or more positions between the side part vertical seal parts along a longitudinal direction; and a pair of roll cutters for continuously forming a cutting line at a center position in a width direction of the cutting vertical seal part, respectively. The roll cutter forms the cutting line so that a long cut part and a perforation-like cut part are alternately continued.SELECTED DRAWING: Figure 3

Description

In the present invention, in a packaging bag made of a plastic film, objects to be packaged, which are liquid, viscous, powdery, solid, etc., or mixtures thereof, are arranged side by side in the width direction in partitioned regions. The present invention relates to a vertical filling and packaging machine for filling and packaging a multi-row package and a multi-row package. In particular, the present invention is characterized by a separation structure added to a separation vertical seal portion provided in the vertical direction to partition a plurality of filled packages in the width direction.

Conventionally, a multi-row package (a package having a plurality of defined filling chambers) is used when providing a pair of different types such as shampoo and conditioner, ketchup and mustard, or when multiple packages are provided together. It is often used when providing

Such a multi-row package can be filled and packaged simultaneously in a plurality of rows while forming a soft plastic film into a bag, as described in Patent Documents 1 and 2, for example. can be produced by a multi-row filling and packaging machine of the type.

JP-A-2003-312685 Japanese Utility Model Laid-Open No. 60-193004

However, when trying to manufacture a plurality of packages connected in parallel (in the width direction) by the multi-row filling and packaging machine of Cited Documents 1 and 2, when laterally sealing the adjacent packages, The parts try to expand in the width direction, but they interfere with each other and cannot expand in the horizontal direction. Vertical wrinkles appear in the horizontal seal part, and the items to be packaged are caught in the horizontal seal part. , there is a problem that the packaged item leaks through the vertical wrinkles.

Therefore, in the present invention, a multi-line filling and packaging machine capable of manufacturing filled packages of objects to be packaged while they are connected in parallel without causing vertical wrinkles in the laterally sealed portion, and manufacturing by the multi-line filling and packaging machine It is an object of the present invention to provide a multi-row package that can be

In order to achieve the above object, the present invention provides a multi-row vertical filling and packaging machine that simultaneously and continuously manufactures filled packages in multiple rows by filling packaging objects in plastic film packaging bags. ,
Both sides of one sheet of plastic film that is continuously fed out in the longitudinal direction and folded back in the width direction, or both sides of two sheets of continuously fed out plastic film that are continuously fed out in the longitudinal direction A plurality of sections partitioned by sealing to form two vertical side seal portions and continuously longitudinally sealing one or more positions between the two vertical side seal portions along the longitudinal direction a pair of vertical seal rolls continuously forming separate vertical seal portions forming a row of cylindrical filling chambers;
a pair of roll cutters that continuously form a separation line at a center position in the width direction of the separation vertical seal portion;
A plurality of rows of the filled packages are simultaneously formed into bags by laterally sealing the entire width of the partitioned plurality of rows of the cylindrical filling chambers at predetermined intervals in the longitudinal direction while filling the packaging material. a pair of horizontal seal rolls,
in those comprising
The roll cutter is characterized in that the separation line is formed by alternately connecting long cut portions and perforated cut portions.

In the vertical filling and packaging machine of the present invention,
(1) The long cut part of the separation line is formed to have a length of 3% or more and 50% or less of the total length of one of the multiple-row packages,
(2) The perforated cut portion of the separation line is formed to have a length of 80% or less and 20 mm or less of the length of the long cut portion,
(3) the perforated cut portion of the separation line consists of a chain line, a dashed line or a dotted line, and the line pitch is 0.5 to 3.0 mm;
(4) Having a pair of wrinkle prevention rolls provided with a drum-shaped roll pair arranged corresponding to the position of the separated vertical seal portion at a position near the upstream side of the pair of horizontal seal rolls,
is preferred.

Further, according to the present invention, a packaging bag surrounded on all sides by a vertical seal portion and a horizontal seal portion is filled with an object to be packaged, and a plurality of rows of filling packages made of a plastic film are arranged in the width direction. A multi-row package,
The multi-row package body has a separate vertical seal portion provided in the vertical direction to partition the filled package body in the width direction, and the separate vertical seal portion extends over the entire length in the center portion in the width direction. A separation line is provided to
The separation line is characterized by being composed of a plurality of long cut portions and perforated cut portions alternately formed.

In addition, in the multi-row package of the present invention,
(1) each of the long cut portions of the separation line has a length of 3% or more and 50% or less of the total length of the multi-row package;
(2) each of the perforated cut portions of the separation line is 80% or less and 20 mm or less of the length of the cut portion;
(3) the perforated cut portion of the separation line consists of a chain line, a dashed line or a dotted line, and the line pitch is 0.5 to 3.0 mm;
(4) The perforated cut portion of the separation line is arranged at least in the vicinity of the position where the vertical separation seal portion joins the horizontal seal portion;
is preferred.

According to the present invention, a pair of vertical sealing rolls are used on the superimposed plastic film to form side vertical sealing portions on both sides, and continuously in the longitudinal direction at one or more positions in the width direction. A cut-off vertical seal portion is formed to form a cylindrical filling chamber consisting of a plurality of rows, and then, directly below the cut-off vertical seal portion, at the center position in the width direction of the cut-off vertical seal portion, a long length is cut by a pair of roll cutters in the longitudinal direction. By forming a plurality of continuous separation lines alternately with the part and the perforated cut part, after that, while filling each of the cylindrical filling chambers consisting of a plurality of rows with the object to be packaged, a pair of horizontal sealing rolls When performing horizontal sealing, the long cut portion relaxes the mutual restraint of the plurality of cylindrical filling chambers connected in parallel, enabling free deformation in the width direction (horizontal direction). It is possible to effectively prevent the object to be packaged from being caught in the interior and the occurrence of vertical wrinkles.

In particular, according to the present invention, each of the long cut portions has a length of 3% or more and 50% or less of the total length of one multi-row package, so that the width of the plurality of cylindrical filling chambers connected in parallel It is possible to freely deform in the direction, and it is possible to further suppress the occurrence of vertical wrinkles in the horizontal seal portion, and by pulling with fingers starting from the long cut portion, the perforated cut portion can be easily cut, and one filled package can be easily separated from a plurality of rows of packages.

It should be noted that the ease of separating one filled package body from a multi-row package body is even greater when the perforated cut portions are 80% or less of the one long cut portion and 20 mm or less. In addition, by making it within this range, it is possible to effectively relax the mutual restraint of a plurality of cylindrical filling chambers connected in parallel, suppressing the occurrence of vertical wrinkles in the horizontal seal portion. can do.

Further, according to the present invention, the perforation-like cut portion is configured by a chain line, a broken line, or a dotted line, and the line pitch (the length of the line and the interval between the lines) is 0.5 to 3.0 mm. , when separating one filled package from a multi-row package, tearing is performed along the perforated cut (dashed line, dashed line or dotted line), and the tear does not propagate in an unexpected direction. , unintentional breakage of the filling package can be prevented.

Furthermore, according to the present invention, by providing a pair of wrinkle prevention rolls having a roll pair arranged corresponding to the separated vertical seal portion position at a position near the upstream of the pair of horizontal seal rolls, the horizontal seal rolls In the multiple rows of cylindrical filling chambers facing toward, the cut-off vertical seal portion is sandwiched from the front and back (front and back) by the drum-shaped roll pair, and both edges of the cut-off vertical seal portion and the vicinity thereof can be flattened. In this state, the film can be sent out to a pair of horizontal seal rolls to perform horizontal sealing, so that vertical wrinkles in the horizontal seal portion, especially vertical wrinkles in the horizontal seal portion near the separated vertical seal portion, can be effectively prevented. can be prevented.

1 is a schematic diagram showing an embodiment of a multi-row vertical filling and packaging machine of the present invention; FIG. It is (a) the partial enlarged view which shows other embodiment of the multi-row vertical filling packaging machine of this invention, (b) The schematic diagram which looked at the wrinkle prevention roll from the top. It is a figure which shows one embodiment of the multi-row package of this invention. It is a figure showing an embodiment of a separation line provided in a separation vertical seal part, (a) shows a case where a perforated cut part consists of a two-dot chain line, (b) a dashed line, and (c) a dotted line.

FIG. 1 is a schematic diagram showing one embodiment of a multi-row filling and packaging machine according to the present invention, and FIG. 2 is a partially enlarged view showing another embodiment of the multi-row filling and packaging machine according to the present invention, FIG. 3 is a diagram showing one multi-row package P manufactured by the multi-row filling and packaging machine of the present invention. Hereinafter, the present invention will be described based on the drawings.

In the multi-row vertical filling and packaging machine shown in FIG. From a film roll R on which a plastic film F formed by laminating a layer and a metal foil layer such as an aluminum foil is wound, the plastic film F is continuously drawn out from the top to the bottom while running. While being guided by a guide rod 1 during running, the plastic film F is folded back in the width direction so that the sealant layers face each other, and both side end portions of the plastic film F are overlapped.

Next, a pair of longitudinal seal rolls 2 (in the horizontal plane, extending in the front-rear direction in the drawing and parallel to each other. In the drawing, only the front seal rollers located on the front side are shown), as described above. While sandwiching both side ends of the plastic film F and one or more places (one in the figure) with a predetermined gap between the both side ends, the vertical seal roll 2 heats and pressurizes. Thus, under the rotation of the vertical seal roll 2, the sealant layers are continuously fused and joined in the longitudinal direction (longitudinal direction).

Here, the pair of vertical seal rolls 2 is composed of one drive motor and gear mechanism (not shown) that rotates them in opposite directions at a constant speed, and one (front side) of the vertical seal roll 2. , toward the bearing blocks supporting the other (rear side) vertical seal roll 2, for example, air cylinders.

Such a pair of vertical seal rolls 2 each has one or more annular seal bars 2A, 2B, 2C on the outer peripheral surface at predetermined intervals, and a heater that contributes to heating the seal bars 2A, 2B, 2C. built-in.

The pair of vertical sealing rolls 2 are pressed by a pair of cylinders (not shown) toward the vertical sealing roll 2 on the front side toward the vertical sealing roll 2 on the rear side. is sandwiched between both seal bars 2A and 2C and heated and pressurized to fuse to form the side vertical seal portion 4, and the substantially central position of the width direction of the plastic film F is sandwiched by the seal bar 2B, Heating and pressurization are applied to fuse them to form a cut-off vertical seal portion 5, thereby forming two rows of cylindrical filling chambers 6 and 6'. Further, the vertical seal roll 2 draws out the cylindrical filling chambers 6, 6' downward in the drawing and travels based on rotation. In this embodiment, the case of forming two rows of cylindrical filling chambers 6, 6' is shown as an example, but the present invention is not limited to this. A plurality of chambers may be further provided at intervals to form a plurality of rows (three rows or more) of cylindrical filling chambers.

Further, as another embodiment, the cylindrical filling chambers 6 and 6' are formed by folding one sheet of long plastic film F in the width direction as described above. It may be formed by superimposing two sheets of the plastic film F fed out and heating and pressurizing both side ends thereof in the longitudinal direction to provide the side longitudinal seal portions 4 .

Next, by a pair of roll cutters 7, a separation line 8 is formed in the longitudinal direction at the center position of the separation vertical seal portion 5 that connects (divides) the two rows of cylindrical filling chambers 6 and 6' in the width direction. Form continuously. The separation line 8 is provided so that a long cut portion 8a and a perforated cut portion 8b shorter than the long cut portion 8a are alternately connected to each other, as shown in an enlarged view in FIG.

It is preferable that at least one of the pair of roll cutters 7 is a round blade such as a Cameron cutter. A plurality of slits are formed so as to form alternately.

Subsequently, the items to be packaged M supplied from tanks (not shown) through pumps (not shown) and supply channels (not shown) are continuously filled into the cylindrical filling chambers 6 and 6' through filling nozzles 11a and 11b. At the same time, a plurality of rows of cylindrical filling chambers 6, 6' traveling in a pair of horizontal seal rolls 10 are sandwiched over the entire width while being connected in the width direction, and the cylindrical filling chambers 6, 6' While squeezing out the filled items to be packaged, the squeezing position is heated and pressurized to form the lateral seal portion 12 . As a result, a multi-row package P in which a plurality of (two in the figure) filled packages 20 are separated and connected in the width direction by the vertical seal portion 5 is continuously manufactured while being connected in the longitudinal direction of the plastic film F. be done.

At this time, when the cylindrical filling chambers 6 and 6' are sandwiched between the pair of horizontal seal rolls 10, the long cut portions 8a of the separation line 8 provided in the vertical separation seal portion 5 cut the width direction ( It is possible to deform (spread) in the lateral direction), and therefore, it is possible to effectively suppress the sandwiching of the packaged item in the lateral seal portion 12 and the occurrence of vertical wrinkles.

FIG. 2(a) is a partially enlarged view showing another embodiment of the vertical filling and packaging machine of the present invention. (In the horizontal plane, they extend in parallel in the front-rear direction of the drawing. In the drawing, only the front side located on the front side is shown.). The pair of anti-wrinkle rolls 9 are positioned in the vicinity of the upstream side of the horizontal sealing rolls 10, and a pair of front and rear wrinkle prevention rolls 9 are positioned in the plurality of rows of cylindrical filling chambers 6, 6' corresponding to the cut-off vertical seal portions 5. drum-shaped roll pair 9a.

The drum-shaped roll pair 9a, as can be seen from the schematic diagram viewed from above in FIG. At least the cut-off vertical seal portion 5 and its vicinity are sandwiched from the front and rear by the portions. Both edges of the cut-off vertical seal portion 5 and its vicinity are crushed by the drum-shaped roll pair 9a into a thin and flat shape, and while maintaining that shape, are sent out to a pair of horizontal seal rolls 10 for horizontal sealing. will take place. It is presumed that this is because there is a delay in returning the packaging film and the object to be packaged that have been deformed by crushing to their original state (original position). Therefore, by providing a pair of wrinkle prevention rolls 9, it is possible to horizontally seal both edges of the cut-off vertical seal portion 5 and the vicinity thereof in a flat shape, so that vertical wrinkles in the horizontal seal portion 12, In particular, it is possible to effectively prevent the occurrence of vertical wrinkles in the horizontal seal portion 12 near the cut-off vertical seal portion 5 (intersection position of the cut-off vertical seal portion 5 and the horizontal seal portion 12). In combination with the provided separation line 8 (long cut portion 8a), it is possible to prevent the occurrence of vertical wrinkles in the lateral seal portion 12 more effectively.

The pair of horizontal seal rolls 10 extends in parallel in the front-rear direction in the figure (only the one on the front side located on the front side is shown in the figure), and are driven in opposite directions by a motor via a set of gears. It rotates in one direction and at a constant speed. For example, the horizontal seal roll 10 has a plurality of heat seal bars 13 positioned at regular intervals on its outer peripheral surface and extending in the axial direction, and the heat seal bars 13 facing each other form a cylindrical filling chamber. By sandwiching and heating the cylindrical filling chambers 6, 6', the horizontal sealing portion 12 can be formed over the entire width in the direction orthogonal to the traveling direction of the cylindrical filling chambers 6, 6'.

The horizontal sealing means may be provided with a pair of horizontal sealing rolls in two stages. In the second step, the lateral seal portion 12 is pressed by a cooled seal bar, so that the lateral seal portion 12 can be fixed and stabilized.

The multi-row packages P that are continuously bag-made on the horizontal seal roll 10 are cut by a cutting device 15 such as a rotary cutter across the entire width of the horizontal seal portion 12 at approximately the middle position in the traveling direction, and separated into pieces, It is also possible to carry out as one multi-row package P shown in FIG. 3, or to carry out in a state in which a plurality of packages are connected in the running direction by making perforations in the laterally sealed portion 12 .

One multi-row package P manufactured as described above consists of a state in which two filled packages 20 are separated and connected in parallel via the vertical seal portion 5 as shown in FIG. The body 20 can be separated through a separation line 8 provided over the entire length of the separation vertical seal portion 5 at the center position in the width direction.

As described above, the separation line 8 is formed by alternately connecting a plurality of long cut portions 8a and perforated cut portions 8b. When the length is 3% or more and 50% or less of the (bag length), the width direction (horizontal direction) of the parallel cylindrical filling chambers 6 and 6 ′ ) can be relaxed, and the cylindrical filling chambers 6 and 6 ′ can be freely moved to suppress the occurrence of vertical wrinkles in the lateral seal portion 12 .

In addition, one filled package 20 can be easily cut off from a plurality of rows of packages P by tearing the tear line 8 with fingers starting from the long cut portion 8a.

On the other hand, each of the perforated cut portions 8b has a length of 80% or less of the length of the long cut portion 8a and 20 mm or less, thereby relaxing the restriction in the width direction of the parallel cylindrical filling chambers 6 and 6'. In addition, tearing along the tearing line 8 can be easily performed. The perforated cut portion 8b is preferably 2 mm or more in order to prevent the separation line 8 from being accidentally cut during distribution, handling, or the like.

Moreover, the separation line 8 is preferably formed so that the perforated cut portions 8b are positioned at least at the upper and lower ends of the vertical separation seal portion 5 (near the position where the horizontal seal 12 joins). It is possible to prevent the disconnection line 8 from being unintentionally cut.

4, the perforated cut portion 8b can be (a) a two-dot chain line, (b) a dashed line, and (c) a dotted line. 0.5 to 3.0 mm, the perforated cut portion 8 can be torn in the desired direction when separating one filled package 20 from the multi-row package P. Thus, the tear does not propagate in an unexpected direction, and unintentional breakage of the multi-row package P (filled package 20) can be prevented.

The multi-row filling packaging machine and the multi-row packaging body of the present invention are liquids such as food and drink, seasoning liquids, pharmaceuticals, and chemicals, viscous substances, powders/granules, fluid solids, or mixtures thereof. It can be suitably used when manufacturing filled packages filled with items to be packaged, which are arranged in a plurality of rows and connected.

1 guide rod 2 vertical seal rolls 2A, 2B, 2C seal bar 4 side vertical seal portion 5 separated vertical seal portion 6, 6' cylindrical filling chamber 7 roll cutter 8 separation line 8a long cut portion 8b perforated cut portion 9 Wrinkle prevention roll 9a Drum-shaped roll pair 10 Horizontal sealing rolls 11a, 11b Filling nozzle 12 Horizontal sealing part 13 Heat sealing bar 15 Cutting device 20 Filling package R Film roll F Plastic film P Multi-row package M Object to be packaged

Claims (10)

A multi-row vertical filling and packaging machine that simultaneously and continuously manufactures filled packages in multiple rows by filling a plastic film packaging bag with an object to be packaged,
Both sides of one sheet of plastic film that is continuously fed out in the longitudinal direction and folded back in the width direction, or both sides of two sheets of continuously fed out plastic film that are continuously fed out in the longitudinal direction A plurality of sections partitioned by sealing to form two vertical side seal portions and continuously longitudinally sealing one or more positions between the two vertical side seal portions along the longitudinal direction a pair of vertical seal rolls continuously forming separate vertical seal portions forming a row of cylindrical filling chambers;
a pair of roll cutters that continuously form a separation line at a center position in the width direction of the separation vertical seal portion;
A plurality of rows of the filled packages are simultaneously formed into bags by laterally sealing the entire width of the partitioned plurality of rows of the cylindrical filling chambers at predetermined intervals in the longitudinal direction while filling the packaging material. a pair of horizontal seal rolls,
in those comprising
The multiple-row vertical filling and packaging machine, wherein the cut-off line of the roll cutter is formed by alternately connecting long cut portions and perforated cut portions. 2. The multiple-row longitudinal package according to claim 1, wherein the long cut portion of the separation line is formed to have a length of 3% or more and 50% or less of the total length of one of the multiple-row packages. Mold filling packaging machine. 3. The multi-row vertical filling according to claim 2, wherein the perforated cut portion of the separation line is formed to have a length of 80% or less and 20 mm or less of the length of the long cut portion. packing machine. 4. The perforated cut portion of the separation line is composed of a chain line, a dashed line or a dotted line, and the line pitch is 0.5 to 3.0 mm. The multi-row vertical filling and packaging machine described in . A pair of wrinkle prevention rolls comprising a drum-shaped roll pair arranged corresponding to the position of the cut-off vertical seal portion at a position near the upstream side of the pair of horizontal seal rolls. 5. The multi-row vertical filling and packaging machine according to any one of 4. It is a multi-row package in which filled packages made of plastic film are connected in a plurality of rows in the width direction, in which a packaging bag surrounded on all sides by a vertical seal part and a horizontal seal part is filled with an object to be packaged. hand,
The multi-row package body has a separate vertical seal portion provided in the vertical direction to partition the filled package body in the width direction, and the separate vertical seal portion extends over the entire length in the center portion in the width direction. A separation line is provided to
A multi-row package, wherein the separation line is formed by alternately forming a plurality of long cut portions and perforated cut portions. 7. The multi-row package according to claim 6, wherein each of the long cut portions of the separation line has a length of 3% or more and 50% or less of the total length of the multi-row package. 8. The multi-row package according to claim 7, wherein each perforated cut portion of said separation line is 80% or less and 20 mm or less of said cut portion length. 9. The perforation-like cut part of the separation line according to any one of claims 6 to 8, wherein the perforated cut part is composed of a chain line, a dashed line or a dotted line, and the line pitch is 0.5 to 3.0 mm. Multi-row packaging. The plurality of rows according to any one of claims 6 to 9, wherein the perforated cut portion of the separation line is arranged near a position where the vertical separation seal portion joins the horizontal seal portion. package.

Images