JP5286067B2 - Packaging bag manufacturing apparatus and packaging bag manufacturing method - Google Patents

Description

  The present invention relates to a packaging bag manufacturing apparatus and a packaging bag manufacturing method for manufacturing a packaging bag filled with a product.

  Conventionally, as shown in FIG. 1, a packaging bag 1101 having a plug member 1102 for discharging a product filled therein is known. The packaging bag 1101 has a configuration in which sealing portions 1104 are formed on four sides of the outer peripheral portion of the accommodating portion 1103, and a plug member 1102 is sandwiched between upper sealing portions 1104 that form one side. Such packaging bags contain foods and drinks such as juice, juice containing fruit pulp, jelly and the like, and fluid products such as enteral nutrients.

  The plug member 1102 includes a detachable cap 1102a having a threaded portion, for example. Therefore, by removing the cap 1102 a from the packaging bag 1101, it is possible to suck out the product in the packaging bag 1101 by opening the cap member 1102.

This type of packaging bag is disclosed in Patent Document 1, for example.
JP 2006-240651 A

  However, since the packaging bag provided with the above-described plug member needs to prepare a plug member separately from the film member forming the housing portion, in addition to the increase in material cost, the manufacturing process becomes complicated and the manufacturing cost is increased. There is a problem of becoming higher.

  Moreover, the packaging bag provided with the above-described plug member is generally formed in a size (so-called “drinking size”) that accommodates an amount of product that can be used up once. Therefore, if the product in a packaging bag is consumed by one use, a packaging bag will be discarded immediately. The stopper member is usually made of a plastic resin, and in this example of a swallow size, in order to form one stopper member, an amount of resin that can form a film member for three bags is required. Therefore, it can be said that providing a plug member made of resin in a swallow-sized packaging bag has a large burden on the environment.

  Furthermore, since the cap member with a removable cap is complicated in structure and expensive, such a cap member provided in a packaging bag that is discarded after one use also increases the cost of the packaging bag. It becomes one cause.

  The objective of this invention is providing the packaging bag manufacturing apparatus and packaging bag manufacturing method which can manufacture efficiently the packaging bag which has a cap and was comprised only by the film member.

In order to achieve the above object, the packaging bag manufacturing apparatus of the present invention includes a bag making guide for forming a cylindrical film by overlapping both side ends of a sheet-like film fed downward, and an internal space of the cylindrical film. A vertical seal device that forms a plurality of vertical seal portions in the tubular film in a horizontal direction , a feeding pipe that feeds a product into each of the plurality of storage spaces, and a plurality of storage spaces in the horizontal direction. Separating means for separating and forming a plurality of packaging bags arranged in the lateral direction, and a first seal portion having a plurality of cap shapes formed on the plurality of packaging bags corresponding to each packaging bag , A second seal portion extending in the lateral direction across the entire width of the plurality of packaging bags is formed by heat sealing, and a transverse seal for cutting each packaging bag between the first seal portion and the second seal portion Each with a spigot Comprising a filling and packaging machine for producing a state aligned to the number of the packaging bag in the lateral direction. Furthermore, the packaging bag manufacturing apparatus includes a protective film attaching device for attaching a protective film covering the entire first seal portions of the plurality of packaging bags arranged in the lateral direction over the plurality of packaging bags, and a plurality of protective film attached A packaging bag separating device for cutting a protective film between adjacent packaging bags in the packaging bag along a plurality of vertical seal portions, and separating the plurality of packaging bags into individual packaging bags;
A protective film mounting machine is provided.

  According to the packaging bag manufacturing apparatus of the present invention, first, a sheet-like film is produced by a filling and packaging machine, and a plurality of packaging bags each having a stopper are produced side by side. And a protective film is attached over several packaging bags so that a protective film may cover the whole 1st seal | sticker part which has several stoppers of several packaging bags with the protective film attachment apparatus of a protective film mounting machine. The plurality of packaging bags to which the protective film is attached are then separated into individual packaging bags by a packaging bag separation device. Thus, in the packaging bag manufacturing apparatus of the present invention, since the protective film can be attached to the plurality of packaging bags by a single operation, compared to the case where the protective film is individually attached to each packaging bag. A packaging bag can be manufactured efficiently.

  The packaging bag manufacturing apparatus of the present invention further includes a conveyor provided with a bag holding device that holds a plurality of packaging bags manufactured by the filling and packaging machine from the filling and packaging machine in a standing state. The bag holding device includes a plurality of inner cans that receive and hold a plurality of laterally arranged packaging bags from a filling and packaging machine, and a mechanism that is fixed to the conveyor and holds and moves the inner cans. And an outer can.

  Furthermore, said protective film attachment apparatus is arrange | positioned above the conveyor, and may be provided with the seal bar which attaches a protective film to several packaging bags by heat sealing. Further, the seal bar heat-seals the protective film over the entire length in the lateral direction of the plurality of packaging bags, and heat-seals the extension of the plurality of vertical seal portions formed in the plurality of packaging bags. It may be configured as follows. Further, the melting temperature of the protective film is lower than the melting temperature of the sheet-like film, and the seal bar is heated at a temperature higher than the melting temperature of the protective film and lower than the melting temperature of the sheet-like film. You may be comprised so that sealing may be performed.

  Moreover, said protective film mounting machine may further have the protective film conveyance apparatus which conveys a protective film so that the upper end of the said some packaging bag hold | maintained by the bag holding | maintenance apparatus may be covered. Further, the protective film conveying device includes a folding plate that folds the long-shaped protective film so that both ends are overlapped, a seal bar that heat-seals the folded portion of the folded protective film, and the folded protection film You may have a conveyance roller which conveys a film.

In addition, the packaging bag manufacturing method of the present invention includes a step of forming both sides of the sheet-like film overlapped with each other and feeding them downward to form a tubular film, and accommodating a plurality of internal spaces of the tubular film in the lateral direction. A step of forming a plurality of vertical seal portions partitioning into a space on the cylindrical film, a step of putting a product into each of the plurality of storage spaces, and a plurality of rows arranged in the horizontal direction by separating the plurality of storage spaces in the horizontal direction A plurality of packaging bags , a first seal portion having a plurality of cap shapes formed corresponding to each packaging bag , and a plurality of packaging bags in the transverse direction over the entire width Forming an extended second seal portion by heat sealing and cutting each packaging bag between the first seal portion and the second seal portion, each comprising a spigot Manufacture of packaging bags that are manufactured in a state where a plurality of packaging bags are arranged in a horizontal direction A step. Furthermore, the packaging bag manufacturing method of the present invention includes a step of attaching a protective film covering the entirety of the first seal portions of the plurality of packaging bags arranged in the lateral direction over the plurality of packaging bags, and a plurality of packages to which the protective film is attached. A protective film mounting step including a step of cutting a protective film between adjacent packaging bags in the bag along a plurality of vertical seal portions and separating the plurality of packaging bags into individual packaging bags.

  ADVANTAGE OF THE INVENTION According to this invention, the packaging bag which has a stopper and comprised only by the film member can be manufactured efficiently.

  Next, embodiments of the present invention will be described with reference to the drawings.

  The packaging bag manufacturing apparatus which concerns on one Embodiment of this invention is a filling packaging machine (refer FIGS. 2-4) which manufactures a some packaging bag in the shape of a line, and a bag holding apparatus (refer FIG. 5). ) And a protective film mounting machine (see FIG. 6) for mounting the protective film on the plurality of held packaging bags. This protective film mounting machine includes a plug stopper, a protective film transport device, a protective film attachment device, and a packaging bag separation device.

  Hereinafter, the configuration of the filling and packaging machine and the protective film mounting machine will be described.

[Filling and packaging machine]
With reference to FIG.2 and FIG.3, the filling packaging machine in the packaging bag manufacturing apparatus of this embodiment is demonstrated. FIG. 2 is a perspective view showing a filling and packaging machine in the packaging bag manufacturing apparatus according to one embodiment of the present invention. FIG. 3 is a side view of the filling and packaging machine shown in FIG. 2 as viewed from the direction of arrow A in FIG.

  Referring to FIGS. 2 and 3, this filling and packaging machine is a vertical filling and packaging machine for bagging products to be supplied from a plurality of input pipes 12 which are six in this example. Around the plurality of charging pipes 12, bag-making guides 11 are arranged for forming a cylindrical film by overlapping both side ends of the sheet-like film 1 supplied via the guide roller 10. Yes.

  Below the bag making guide 11, a plurality of vertical sealing devices 20 that heat-seal the film 1 formed in a cylindrical shape by the bag making guide 11 in the vertical direction are arranged. In this example, seven pairs of vertical sealing devices 20 are provided so as to face each other with the film 1 interposed therebetween. At least one of the pair of vertical sealing devices 20 has a built-in heater that generates heat for heat-sealing the film 1, and the vertical sealing devices 20 are separated from each other by a drive mechanism (not shown) and against each other. It can move in the direction of contact. By these vertical sealing devices 20, heat seal portions are formed at equal intervals in both side edges of the film 1 formed in a cylindrical shape and in a region between the both side edges. A plurality of housing spaces partitioned from each other in the horizontal direction by the heat seal portion are formed. In this example, six storage spaces are formed in the tubular film 1 by the seven vertical sealing devices 20, and a product is charged into each of the storage spaces from each of the six charging pipes 12. In addition, since the structure of each vertical sealing apparatus 20 is the same as that of the vertical sealing apparatus used for a general vertical filling and packaging machine, the description is abbreviate | omitted.

  Below the vertical sealing device 20, five slit blades 15 for separating the accommodation spaces of the tubular film 1 are arranged. Further, as shown in FIG. 3, a pair of feed rollers 13 that rotate while sandwiching the film 1 and feed the film 1 downward are provided downstream of these (see FIG. 2 for simplification of the drawing). For this reason, the illustration of the feed roller 13 is omitted).

  Below the feed roller 13, a pair of squeeze rollers 14 that are opposed to each other with the film 1 interposed therebetween and are rotated in synchronization with the rotation of the feed roller 13 are provided. The squeeze roller 14 divides the product put in each accommodation space of the film 1 by sandwiching the film 1 over the entire width, and moves in a direction away from each other and a direction in contact with each other by a driving mechanism (not shown). Is possible. The squeeze roller 14 conveys the film 1 together with the feed roller 13 by rotating while sandwiching the film 1.

  Further, below the squeeze roller 14, the film 1 is heat-sealed in the lateral direction (horizontal direction), and a first plug having a plurality of cap shapes formed corresponding to each accommodation space of the tubular film 1 is provided. The seal portion 1a and the second seal portion 1b extending in the lateral direction over the entire width of the tubular film 1 are formed by heat sealing, and the tubular film 1 is formed by the first seal portion 1a and the second seal portion 1b. A horizontal sealing device 30 for cutting at a cutting position C between them is arranged.

  Here, with reference to FIG. 4, the structure of the horizontal sealing apparatus 30 mentioned above is demonstrated.

  The lateral seal device 30 has two seal bars arranged so that the pressurizing surfaces thereof face each other so that pressurization is possible, and the film 1 can pass between the seal bars. The two seal bars can be moved in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown). FIG. 4A is a perspective view showing one of the seal bars in a partially broken state.

  As shown in FIG. 4, the pressure surface of the seal bar 31 has a first convex portion 32 and a second convex portion 33 which are higher than the surroundings in the hatched region. The 1st convex part 32 is formed in the shape which comprises the 1st seal | sticker part 1a which has the some stopper shape formed corresponding to each accommodation space of the cylindrical film 1, and is 2nd convex. The portion 33 is formed in a shape that forms a second seal portion 1 b extending in the lateral direction over the entire width of the tubular film 1. Similar first and second convex portions 32 and 33 are formed on the other seal bar (not shown) facing the seal bar 31, and when the pressure surface of the seal bar pressurizes the film 1, these are the same. The first and second convex portions 32 and 33 are in contact with the film 1. At least one of the two seal bars has a built-in heater that generates heat for heat-sealing the film 1.

  The seal bar 31 is formed with a groove 34 that separates the first protrusion 32 and the second protrusion 33 over the entire length of the seal bar 31, and a cutter 35 is advanced and retracted in the groove 34. Held possible. A similar groove 34 is formed in the other seal bar facing the seal bar 31, but the groove 34 of the other seal bar is not provided with a cutter 35. The cutter 35 provided on the seal bar 31 protrudes so as to enter the groove 34 of the other seal bar when the film 1 is sandwiched between the two seal bars, thereby causing the film 1 to move in the lateral direction (horizontal direction). ). FIG. 4B shows the first and second seal portions 1a and 1b (shaded portions in the drawing) heat-sealed by the lateral sealing device 30 of the film 1 and the position C cut by the cutter 35 of the film 1. It shows.

  Next, the filling and packaging operation by the above-described filling and packaging machine will be described with reference to FIGS.

  First, both end portions of the sheet-like film 1 are overlapped with each other and fed downward to form a tubular film. Then, a plurality of vertical seal portions that partition the internal space of the tubular film 1 into a plurality of accommodation spaces in the horizontal direction are formed in the tubular film 1 by the vertical sealing device 20.

  Then, in a state where the squeeze roller 14 and the lateral seal device 30 are opened, the feed roller 13 is rotated to feed the film 1 downward while the product is put into each accommodation space formed in the film 1 from each feed pipe 11. . In this process, the slit blade 15 cuts the space between adjacent accommodation spaces of the film 1 and separates it as a belt-like bag. When the film 1 is fed by a predetermined amount, the squeeze roller 14 is closed, and the squeeze roller 14 divides the product in each accommodation space of the film 1 in the film feed direction.

  In this state, when the feed roller 13 and the squeeze roller 14 are further rotated to feed the film 1 downward, an empty filling portion where no product exists is formed in the film 1 as shown in FIG.

  When the empty filling portion is sent between the horizontal sealing devices 30, that is, when the film 1 is fed by the feeding pitch of one packaging bag from the previous operation, the feeding of the film 1 is stopped and the sealing of the horizontal sealing device 30 is performed. The bars (see FIG. 4) are brought closer to each other. Then, the seal bars are closed, and the empty filling portion of the film 1 is pressurized by these. When the seal bars are closed, the heaters built in these seal bars are driven to heat-seal the empty filling portion in the lateral direction. When this heat sealing is completed, the cutter 35 provided on one of the seal bars 31 is advanced to cut the heat-sealed portion of the film 1.

  When the heat-sealed portion is cut, the two seal bars are separated from each other, and the obtained six packaging bags W are dropped onto a conveyor (not shown) (see FIG. 2). The dropped six packaging bags W are held by a bag holding device (see FIG. 5) on the conveyor. Then, the squeeze roller 14 is opened, and the next product is dropped from the input pipe 12 into each strip-shaped accommodation space of the film 1.

[Bag holding device on conveyor]
With reference to FIG. 5, the bag holding | maintenance apparatus on the conveyor used with the packaging bag manufacturing apparatus of this embodiment is demonstrated. FIG. 5 is a perspective view showing a schematic configuration of the bag holding device.

  As shown in FIG. 2, a plurality of bag holding devices for receiving six dropped packaging bags W are prepared on the conveyor and fixed at regular intervals in the conveyor moving direction. As shown in FIG. 5, the bag holding device is provided for each packaging bag, and stores and holds and positions the packaging bag in a standing state, and is fixed to the conveyor 42 so that the plurality of inner cans can move freely. And an outer can 43 to be held.

  The inner can 41 is a rectangular box-shaped can whose upper portion is open, and holds the standing packaging bag that has entered the interior with the plug portion exposed (see FIG. 5B). On the other hand, the outer can 43 moves along with the conveyor 42 while aligning the plurality of inner cans 41 in the arrangement direction of the packaging bags so that the inner cans 41 can receive the plurality of packaging bags arranged side by side. The plurality of inner cans 41 can be guided by the side walls of the outer can 43 in the direction in which the packaging bags are arranged. Further, the outer can 43 is provided with mechanisms for raising and lowering the inner can 41, horizontally moving the inner can 41 along the arrangement direction of the packaging bags, and fixing the position of the inner can 41.

  Further, when the plurality of packaging bags are simultaneously dropped into the plurality of inner cans 41 on the conveyor 42, the separation guide is provided below the horizontal sealing device 30 (see FIG. 2) so that adjacent packaging bags do not interfere with each other. 44 is arrange | positioned corresponding to the boundary of packaging bags. And when the adjacent packaging bags are separated and dropped, the adjacent inner cans 41 are arranged in a predetermined manner so that each packaging bag can surely enter inside without being caught by the opening edge of the corresponding inner can 41. A gap is provided in the outer can 43.

[Protective film loading machine]
With reference to FIG. 6, the protective film mounting machine in the packaging bag manufacturing apparatus of this embodiment is demonstrated. FIG. 6 is a perspective view showing a schematic configuration of a protective film mounting machine in the packaging bag manufacturing apparatus according to the embodiment of the present invention.

  As shown in FIG. 6, the protective film mounting machine includes a conveyor 42 (see FIG. 5) that is a transport unit provided with a bag holding device 40 that receives a plurality of packaging bags containing products dropped from the filling and packaging machine.

Furthermore, the protective film mounting machine
A plug cutting device 60 that cuts the film 1 along a heat sealing portion having a plug shape formed at the upper edge of a plurality of packaging bags by a horizontal sealing device 30 (see FIG. 2 and the like) of the filling and packaging machine;
A protective film conveying device 70 for conveying the protective film 71 to the upper ends of the plurality of packaging bags held by the bag holding device 40;
A protective film attachment device 80 for fusing and cutting the protective film 71 to a plurality of packaging bags held by the bag holding device 40;
A packaging bag separating device 90 that separates the plurality of packaging bags to which the protective film 71 is fused into individual packaging bags.

  These devices 60, 70, 80, 90 are arranged in this order along the conveyance direction of the bag holding device 40 by the conveyor 42. Further, the arrangement pitches of the devices 60, 70, 80, 90 are the same as the arrangement pitch of the bag holding device 40 on the conveyor 42, or an integer multiple of 2 or more. For this reason, it is possible to operate two or more of the devices 60, 70, 80, 90 simultaneously.

  Hereinafter, each above-mentioned structure with which a protective film mounting machine is provided is demonstrated.

1) Conveyor 42
The conveyor 42 includes at least two transport rollers and a transport belt wound around the two transport rollers. At least one of the two conveying rollers is configured to be driven to rotate, and the conveying belt is rotated between the two conveying rollers by rotating the conveying roller. The plurality of bag holding devices 40 fixed on the outer surface of the conveyor 42 are transported by the rotation of the transport belt. The specific configuration of the bag holding device 40 is as already described with reference to FIG.

2) Mouth cut device 60
The plug cutting device 60 has two cut bars 61 and 62 that can be moved in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown). Both the cut bars 61 and 62 extend above the conveyor 42 along a direction perpendicular to the direction of the conveyance of the conveyor bag.

  One cut bar 61 has a shape corresponding to a heat seal portion (first seal portion 1a) having a cap shape formed at the upper ends of a plurality of packaging bags held by the bag holding device 40. A plug cutting blade (not shown) is formed. The plug cutting blade of this example is provided with a shape that forms a notch 111a (see FIG. 7) that is a notch for facilitating opening in the plug formed in each packaging bag. On the other hand, a groove (not shown) having a shape corresponding to the plug cutting blade is formed in the other cut bar 62 arranged to face the cut bar 61. Therefore, the two cut bars 61 and 62 contact each other and sandwich the upper end portions of the plurality of packaging bags at the same time, thereby cutting off an excess portion of the film 1 and forming a plug at the upper end of each packaging bag. Is possible.

  In the above description, an example in which a groove (not shown) is formed in the cut bar 62 has been described. However, instead of such a groove, a rubber sheet or the like is provided on the surface of the cut bar 62 facing the cut bar 61. It is good also as a structure which receives a plug cutting blade by it.

3) Protective film transport device 70
The protective film conveyance device 70 heat-seals the folding plate 72 that folds the long-shaped protective film 71 along the longitudinal direction so that both ends are overlapped, and the folded portion at the upper end of the folded protective film 71. And a seal bar 73.

  Further, the protective film conveying device 70 grips the upper end of the folded protective film 71 and conveys the protective film 71 to a position covering the upper ends of the plurality of packaging bags held by the bag holding device 40. 74 and a plurality of guide rollers 75 for guiding the protective film 71 during conveyance.

  The folding plate 72, the seal bar 73, the conveyance start position of the conveyance mechanism 74, and the guide roller 75 are provided on one of both sides of the conveyor 42 in a direction perpendicular to the packaging bag conveyance direction.

  The protective film 71 is made of a material having a lower fusing temperature than the film 1 forming the packaging bag (see FIG. 2 and the like) and having an easy peel property with respect to the film 1.

4) Protective film attachment device 80
The protective film attachment device 80 has two seal bars 81 and 82 that can be moved in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown). Both seal bars 81 and 82 extend above the conveyor 42 along a direction perpendicular to the direction of the conveyor bag transport. Further, both seal bars 81 and 82 are arranged across a path along which the protective film knob of the transport mechanism 74 of the protective film transport device 70 moves.

  At least one of the two seal bars 81 and 82 has a built-in heater that generates heat for heat-sealing the protective film 71 on the film 1 forming the packaging bag.

  The seal bars 81 and 82 heat-seal the entire plurality of packaging bags with the protective film 71 interposed therebetween, and a plurality of vertical seals formed on the film 1 of the packaging bag by the vertical sealing device 20 (see FIG. 2 and the like). It has a shape that allows heat sealing on the extension of the part.

  The protective film attachment device 80 further includes a protective film cutting blade (not shown) that cuts the protective film 71 fused across a plurality of packaging bags. This protective film cutting blade cuts the protective film 71 along the side end surface of one endmost packaging bag.

5) Packaging bag separator 90
The packaging bag separating apparatus 90 has two cut bars 91 and 92 that are movable in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown). Both cut bars 91 and 92 extend above the conveyor 42 along a direction perpendicular to the direction of the conveyor bag transport.

  One cut bar 91 is formed with a plurality of separation cutting blades (not shown) corresponding to boundary portions between adjacent bags of the plurality of packaging bags held by the bag holding device 40. Grooves (not shown) corresponding to the respective separation cutting blades are formed in the other cut bar 92 arranged to face the cut bar 91.

  Therefore, when the two cut bars 91 and 92 abut against each other and sandwich the upper ends of the plurality of packaging bags at the same time, the protective film 71 in the portion between the adjacent packaging bags is cut and divided into individual packaging bags. Is possible.

  In this example, six packaging bags are held side by side by the bag holding device 40, and the number of boundary portions between the bags to be cut is five. Therefore, the packaging bag separating apparatus 90 includes five separation cutting blades. As a matter of course, the number of separation cutting blades provided in the packaging bag separating apparatus 90 can be appropriately changed according to the number of boundary portions between the bags to be cut.

  Although not shown in the figure, the packaging bag separating apparatus 90 includes a punch hole forming part for forming a punch hole in a heat seal part formed in the folding part of the protective film 71.

Operation Next, the operation of the protective film mounting machine described above will be described with reference to FIG.

1) Conveyor charging step The plurality of packaging bags manufactured by the above-described filling and packaging machine (FIG. 2) fall to the conveyor 42 that is temporarily stopped, and enter the inner can 41 of the bag holding device 40 on the conveyor 42. Each is held in.

  Thereafter, the conveyor 42 is operated, and the bag holding device 40 in which the plurality of packaging bags are accommodated in the respective inner cans 41 is moved to a position where the stopper cut device 60 is disposed. However, during this movement, the bag holding device 40 pushes the inner cans 41 from the lateral direction by a horizontal movement mechanism (not shown) provided in the outer cans 43 to bring the inner cans 41 into close contact with each other. Position it. Thereby, the clearance gap between packaging bags is made into the minimum.

2) Plug cutting process When the bag holding device 40 comes between the cut bars 61 and 62 facing each other in the plug cutting device 60, the conveyor 42 is temporarily stopped. For this reason, the position of the upper end portion of the packaging bag is detected by a position detection unit (not shown) made of, for example, an optical sensor, and the upper end portion of the packaging bag is appropriate for the plug cutting device 60 based on the detection result. The conveyor 42 is driven and controlled so as to be aligned with the position.

  The bag holding device 40 that has come to the position of the spout cut device 60 simultaneously lifts all of the plurality of inner cans 41 containing the packaging bags by an elevating mechanism (not shown) provided in the outer can 43. An upper end portion is disposed between the cut bars 61 and 62.

  Thereafter, the plug cutting device 60 is operated to move the two cut bars 61 and 62 in a direction close to each other, and the upper ends of the plurality of packaging bags are sandwiched between the cut bars 61 and 62. Then, the upper end part of a some packaging bag is cut | disconnected by the cap cutting blade of the cut bar 61, and the stopper 111 (refer FIG. 7) is formed in the upper end of each packaging bag. Thereafter, the cut bars 61 and 62 move away from each other, and the bag holding device 40 lowers all of the plurality of inner cans 41 containing the packaging bags by an elevating mechanism (not shown) provided in the outer can 43. The upper ends of the plurality of packaging bags are retracted from between the cut bars 61 and 62.

3) Protective film transporting process Subsequently, the conveyor 42 is restarted, and a plurality of packaging bags are accommodated in the bag holding device in which the respective inner cans 41 are accommodated at the position where the protective film transporting device 70 and the protective film mounting device 80 are arranged. Move 40.

  When the bag holding device 40 comes to a position corresponding to the protective film conveyance path in the protective film conveyance device 70, the conveyor 42 is temporarily stopped. For this reason, the position of the upper end portion of the packaging bag is detected by a position detection unit (not shown) made of, for example, an optical sensor, and based on the detection result, the upper end portions of the plurality of packaging bags are detected by the protective film transport device 70. The conveyor 42 is driven and controlled so as to be aligned at an appropriate position with respect to the protective film conveyance path.

  During this stop, the protective film transport device 70 operates to transport the protective film 71 so as to cover the upper ends of the plurality of packaging bags. The transport of the protective film 71 is performed by moving the knob in a state where the folded portion of the protective film 71 is gripped by the knob 74a of the transport mechanism 74 as shown in FIG. Further, as the protective film 71 is conveyed in the direction of the arrow in FIG. 6 by the conveying mechanism 74, the protective film 71 is folded by the folding plate 72 so that both side ends overlap each other.

  As described above, the protective film transport device 70 includes the seal bar 73 that heat seals the folded portion of the protective film 71, and the transport operation of the protective film 71 by the transport mechanism 74 is not thermally sealed by the seal bar 73. Between. More specifically, while the two seal bars 73 are closed and the protective film 71 is thermally sealed, the conveyance operation of the protective film 71 by the conveyance mechanism 74 is stopped and the two seal bars 73 are separated from each other. Then, the transport operation of the protective film 71 is performed. Therefore, the transport operation of the protective film 71 by the transport mechanism 74 is performed intermittently. The transport pitch of the protective film 71 by the transport mechanism 74 is the same as or slightly smaller than the length of the seal bar 73 in the longitudinal direction. Thereby, it is possible to heat-seal with respect to the folding part of the protective film 71 without a gap.

  The protective film 71 is folded in this way, and is conveyed above the upper ends of the plurality of packaging bags in a state where the folded portion is heat-sealed. The transport mechanism 74 is provided with a position detection unit (such as an optical sensor) that detects the position of the side end of the outermost packaging bag. Based on the detection result, the transport mechanism 74 includes the protective film 71. The protective film 71 is transported to a position where the front end portion coincides with the side end portion of the outermost packaging bag.

  Thereafter, the bag holding device 40 corresponding to the position of the protective film attachment device 80 lifts all of the plurality of inner cans 41 containing the packaging bags by an elevating mechanism (not shown) provided in the outer can 43, and then a plurality of packages. A protective film 71 is placed on the upper end of the bag. That is, the upper end portions of the plurality of packaging bags are inserted into the folded protective film 71.

4) Protection film attachment process Next, the protection film 71 is heat-sealed with the protection film attachment apparatus 80 with respect to the upper end part of the some packaging bag with which the protection film 71 was covered as mentioned above. In this heat sealing, the seal bars 81 and 82 of the protective film mounting device 80 are brought close to each other, the protective film 71 and all the packaging bags are sandwiched between them, and the heaters of the seal bars 81 and 82 are driven in this state. Do by. Thereby, the protective film 71 which covers the 1st seal | sticker part (refer code | symbol 1a of FIG. 4) of all the packaging bags is attached to the whole several packaging bag. At this time, the temperature of heat applied to the protective film 71 and the film 1 of the packaging bag is set to a temperature equal to or higher than the melting point of the protective film 71 and lower than the melting point of the film 1. Thereby, it can prevent that the films 1 of a packaging bag will fuse | melt by the heat sealing operation | movement by the protective film attachment apparatus 80. FIG.

  Subsequently, the protective film 71 and all the packaging bags are sandwiched by the seal bars 81 and 82, and the protective film is cut along the side edge of the outermost packaging bag using a protective film cutting blade (not shown). 71 is cut. Thereafter, the seal bars 81 and 82 are separated from each other, and the bag holding device 40 lowers all of the plurality of inner cans 41 containing the packaging bags by an elevating mechanism (not shown) provided in the outer can 43. The upper end portion of the packaging bag is retracted from between the cut bars 61 and 62. Further, the pick portion of the transport mechanism 74 is retracted from the upper side of the bag holding device 40 to the outside of the conveyor 42.

5) Packaging Bag Separation Step Next, the conveyor 42 is operated again, and the bag holding device 40 that houses each of the inner cans 41 is moved to a position where the packaging bag separation device 90 is disposed.

  When the bag holding device 40 comes between the opposed cut bars 91 and 92 in the packaging bag separating device 90, the conveyor 42 is temporarily stopped. For this reason, the position of the upper end portion of the packaging bag is detected by a position detection unit (not shown) made of, for example, an optical sensor, and the upper end portion of the packaging bag is appropriate for the packaging bag separating device 90 based on the detection result. The conveyor 42 is driven and controlled so as to be aligned with the position.

  The bag holding device 40 that has come to the position of the packaging bag separating device 90 simultaneously lifts all of the plurality of inner cans 41 containing the packaging bags by an elevating mechanism (not shown) provided in the outer can 43. An upper end portion is disposed between the cut bars 91 and 92.

  Thereafter, the packaging bag separating apparatus 90 is operated to move the two cut bars 91 and 92 in a direction close to each other, and the upper ends of the plurality of packaging bags are sandwiched between the cut bars 91 and 92. Thereby, the two cut bars 91 and 92 contact each other, and the protective film 71 in the portion between adjacent packaging bags is cut with the cutting blade. As a result, the plurality of packaging bags connected by the protective film 71 are divided into individual packaging bags. Further, when the protective film is cut, a punch hole forming portion (not shown) may be operated to form a punch hole in the heat seal portion formed in the folded portion of the protective film 71.

  Thereafter, the cut bars 61 and 62 move away from each other, and the bag holding device 40 lowers all of the plurality of inner cans 41 containing the packaging bags by an elevating mechanism (not shown) provided in the outer can 43. The upper ends of the plurality of packaging bags are retracted from between the cut bars 61 and 62.

  Through the above steps, individually separated packaging bags are obtained. In addition, when the bag holding device 40 that has passed through the packaging bag separation process moves to the downstream end of the conveyor by the operation of the conveyor 42 and the opening of the inner can 41 is directed downward, the plurality of packaging bags obtained as described above are obtained. It is carried out onto another conveyor 45.

  The effect of the packaging bag manufacturing apparatus of this embodiment will be described.

  According to the packaging bag manufacturing apparatus of the present embodiment, first, a plurality of packaging bags each formed with a cap are formed side by side by a filling and packaging machine by forming the sheet-like film 1 into a bag. Then, the protective film 71 is provided such that the protective film 71 covers the entirety of the first seal portion (see reference numeral 1a in FIG. 4) having the stoppers in the plurality of packaging bags by the protective film attaching device 80 of the protective film mounting machine. Are attached over a plurality of packaging bags. The plurality of packaging bags to which the protective film 71 is attached are then separated into individual packaging bags by the packaging bag separating device 90.

  Thus, in the packaging bag manufacturing apparatus of this embodiment, since the protective film 71 can be attached by one operation | movement with respect to several packaging bags, when attaching a protective film separately with respect to each packaging bag In comparison, the packaging bag can be manufactured efficiently.

  Fig.7 (a) is a perspective view which shows the packaging bag manufactured by the packaging bag manufacturing apparatus of this embodiment. As shown in FIG. 7 (a), the packaging bag 100 manufactured by the packaging bag manufacturing apparatus of the present embodiment includes a main body 110 having a plug 111 formed with a notch 111a that is a notch for opening, A protective cover 120 sealed by the main body 110 is provided so as to cover the plug 111. The main body 110 is formed of a film 1 (see FIG. 2 and the like), and the protective cover 120 is formed of a protective film 71 (see FIG. 6 and the like) having an easy peel property with respect to the film 1. Thus, the packaging bag 100 by this embodiment is comprised only by the film member, and the burden given to an environment is small compared with the conventional structure provided with the plug of another member comprised by resin etc., and Cost can be reduced.

  A punch hole 120a is formed in the protective cover 120 at a portion where the protective film 71 is folded and heat-sealed. For example, a plurality of packaging bags 100 can be displayed in a suspended state as shown in FIG. 7B by passing the punch holes 120a through a bar-like hanging tool provided on a store shelf or a wall of a store. it can.

  When taking out the contents of the packaging bag 100, first, the protective cover 120 is removed from the main body 110 as shown in FIG. Since the protective cover 120 is attached to the main body 110 with easy peelability, the protective cover 120 can be easily peeled off from the main body 110 by hand. Thereby, the plug 111 of the main body 110 is exposed. Then, by tearing the plug 111 from the notch 111a and cutting off the tip of the plug 111, the main body 110 filled with the product is opened. Since the plug 111 is covered with the protective cover 120 until the protective cover 120 is removed and kept clean, the mouth 111 can be directly attached to the mouth 111 so that the contents of the main body 110 can be consumed and eaten. . Alternatively, the contents can be transferred to the container so that the contents are not spilled from the container during extraction by extracting the contents in a state where the elongated stopper 111 is inserted into a container such as a cup.

  In addition, the quantity of the product accommodated in the main-body part 110 is the range of 120 ml-200 ml normally. In particular, 150 ml is an amount suitable for a consumer to swallow after a single use. Therefore, when the packaging bag 100 is of a so-called all-out size, the amount of product contained in the main body 110 is 150 ml. It is preferable that In addition, when the main body 110 of the packaging bag 100 is a relatively large size having a capacity of, for example, 300 ml or more, the main body 110 is held and an internal product is transferred from the plug 111 to another container. In some cases, the main body 110 may be deformed and the internal product may overflow unexpectedly. Therefore, when the packaging bag 100 is of such a large size, the main body 110 of the packaging bag 100 may be used by being housed in a support container 112 made of a hard material as shown in FIG. Good.

<Modification>
In the above description, a configuration in which the protective film 71 is attached to the film 1 of the packaging bag by the heat seal using the protective film attaching device 80 is described as an example. However, the means for attaching the protective film 71 by the protective film attaching device 80 is not limited thereto. However, the protective film 71 can be attached to the film 1 of the packaging bag also by, for example, an impulse seal or a high frequency seal. Further, the protective film 71 is not attached to the film 1 of the packaging bag by fusion as in these means, but is applied by applying an adhesive to the protective film 71 and sticking it to the film 1 of the packaging bag. May be attached to the film 1 of the packaging bag.

  In the above description, the configuration in which the plug cutting device 60 is provided in the packaging bag conveying device shown in FIG. 6 has been described as an example. However, the plug cutting device is provided in the filling and packaging machine shown in FIGS. It may be. Or while cutting the cylindrical film 1 between the 1st seal | sticker part 1a and the 2nd seal | sticker part 1b, the cutter 35 (refer FIG. 4) with which the horizontal sealing apparatus 30 of the filling packaging machine was equipped, and a cylinder It is also possible to combine the function of the plug cutting device in the horizontal sealing device 30 by cutting the film-like film 1 along the first seal portion 1a so as to remove the excess portion of the film 1 It is.

It is a figure which shows the conventional packaging bag. It is a perspective view which shows the filling packaging machine in the packaging bag manufacturing apparatus which concerns on one Embodiment of this invention. It is the side view which looked at the filling packaging machine shown in FIG. 2 from the A arrow direction of FIG. It is a figure which shows the structure of the horizontal sealing apparatus in the filling packaging machine shown in FIG. It is a perspective view which shows schematic structure of the bag holding jig used for the packaging bag manufacturing apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows schematic structure of the protective film mounting machine in the packaging bag manufacturing apparatus which concerns on one Embodiment of this invention. It is a figure which shows the packaging bag manufactured by the packaging bag manufacturing apparatus which concerns on one Embodiment of this invention. It is a figure which shows the state which accommodated and used the main-body part of the packaging bag in the support container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Film 1a 1st seal | sticker part 1b 2nd seal | sticker part 10 Guide roller 11 Bag making guide 12 Input pipe 13 Feed roller 14 Shigori roller 15 Slit blade 20 Vertical seal device 30 Horizontal seal device 31 Seal bar 32 1st convex part 33 Second convex portion 34 Groove portion 35 Cutter 40 Bag holding device 51 Inner can 42 Conveyor 43 Outer can 44 Separation guide 60 Plug stopper 61, 62 Cut bar 70 Protective film transport device 71 Protective film 72 Folding plate 73 Seal bar 74 Conveyance Mechanism 74a Picking part 75 Guide roller 80 Protective film mounting device 81, 82 Seal bar 90 Packaging bag separating device 91, 92 Cut bar 100, W Packaging bag 110 Main body 111 Plug 111a Notch 112 Support container 120 Protective cover 120a Punch hole

Claims (14)

A bag-making guide for forming a tubular film by superimposing both side ends of a sheet-like film sent downward;
A vertical seal device for forming a plurality of vertical seal portions in the cylindrical film, which partitions the internal space of the cylindrical film into a plurality of accommodation spaces in the lateral direction;
An input pipe for supplying a product to each of the plurality of accommodating spaces;
Separating means for separating the plurality of storage spaces in the lateral direction into a plurality of packaging bags arranged in the lateral direction;
Wherein the plurality of packaging bags, the first seal portion having a shape of a plurality of spout formed corresponding to each said packaging bag, the second extending laterally across the entire width of the plurality of packaging bags A transverse seal device that forms a seal portion by heat sealing and cuts each of the packaging bags between the first seal portion and the second seal portion;
A filling and packaging machine for producing a plurality of packaging bags each provided with the plug in a state in which the packaging bags are arranged side by side;
A protective film attachment device for attaching a protective film covering the entirety of the first seal portions of the plurality of packaging bags arranged in the lateral direction over the plurality of packaging bags;
In the plurality of packaging bags to which the protection film is attached, the protective film in a portion between adjacent packaging bags is cut along the plurality of vertical seal portions, and the plurality of packaging bags are separated into individual packaging bags. A bag separating device;
A protective film mounting machine having
A packaging bag manufacturing apparatus. Further comprising a conveyor provided with a bag holding device for holding the plurality of packaging bags arranged in the lateral direction manufactured by the filling and packaging machine from the filling and packaging machine in a standing state;
The bag holding device includes a plurality of inner cans that receive and hold the plurality of packaging bags arranged in a horizontal direction from the filling and packaging machine, and are fixed to the conveyor, hold the inner cans, and The packaging bag manufacturing apparatus according to claim 1, further comprising an outer can having a moving mechanism.   The said protective film attachment apparatus is a packaging bag manufacturing apparatus of Claim 2 provided with the seal bar which is arrange | positioned above the said conveyor and attaches the said protective film over a plurality of said packaging bags by heat sealing.   The seal bar heat-seals the protective film over the entire length in the lateral direction of the plurality of packaging bags, and heats the extension of the plurality of vertical seal portions formed in the plurality of packaging bags. The packaging bag manufacturing apparatus of Claim 3 which performs a seal | sticker. The melting temperature of the protective film is lower than the melting temperature of the sheet-like film,
The packaging bag manufacturing apparatus according to claim 3 or 4, wherein the seal bar performs heat sealing at a temperature equal to or higher than a melting temperature of the protective film and lower than a melting temperature of the sheet-like film.   The said protective film mounting machine further has the protective film conveyance apparatus which conveys the said protective film so that the upper end of these packaging bags hold | maintained by the said bag holding | maintenance apparatus may be covered. The packaging bag manufacturing apparatus of Claim 1.   The protective film conveying device includes a folding plate that folds the long-shaped protective film so that both ends thereof are overlapped, a seal bar that heat-seals the folded portion of the folded protective film, and the folded protection The packaging bag manufacturing apparatus according to claim 6, further comprising a transport mechanism that transports the film. A process of forming both ends of the sheet-like film on each other and feeding them downward to form a tubular film;
Forming a plurality of vertical seal portions in the tubular film to partition the internal space of the tubular film into a plurality of accommodating spaces in the lateral direction;
Introducing a product into each of the plurality of storage spaces;
Separating the plurality of storage spaces in the lateral direction into a plurality of packaging bags arranged in the lateral direction;
Wherein the plurality of packaging bags, the first seal portion having a shape of a plurality of spout formed corresponding to each said packaging bag, the second extending laterally across the entire width of the plurality of packaging bags Forming a seal portion by heat sealing, and cutting each of the packaging bags between the first seal portion and the second seal portion;
A manufacturing process of a packaging bag, each of which is manufactured in a state in which a plurality of packaging bags each provided with the plug are arranged in a lateral direction;
further,
Attaching a protective film covering the entirety of the first seal portions of the plurality of packaging bags arranged in the lateral direction over the plurality of packaging bags;
A step of cutting a protective film between adjacent packaging bags in the plurality of packaging bags to which the protective film is attached along the plurality of vertical seal portions, and separating the plurality of packaging bags into individual packaging bags. When,
A protective film mounting process including:
A method for manufacturing a packaging bag. Using a conveyor provided with a bag holding device that holds the plurality of packaging bags arranged in the lateral direction manufactured by the filling and packaging machine from the filling and packaging machine in a standing state,
The said protective film mounting process is implemented while receiving and holding the plurality of packaging bags arranged in the lateral direction from the filling and packaging machine in a standing state by the bag holding device of the conveyor. Packaging bag manufacturing method.   The method for manufacturing a packaging bag according to claim 9, wherein the step of attaching the protective film to the plurality of packaging bags includes attaching the protective film over the plurality of packaging bags by heat sealing on the conveyor.   Heat sealing is performed on the protective film over the entire length in the lateral direction of the plurality of packaging bags, and heat sealing is performed on the extensions of the plurality of vertical seal portions formed in the plurality of packaging bags. Item 11. A packaging bag manufacturing method according to Item 10. The melting temperature of the protective film is lower than the melting temperature of the sheet-like film,
The packaging bag manufacturing method according to claim 10 or 11, wherein heat sealing is performed at a temperature equal to or higher than a melting temperature of the protective film and lower than a melting temperature of the sheet-like film.   The said protective film mounting process further includes the process of conveying the said protective film so that the upper end of these packaging bags hold | maintained by the said bag holding | maintenance apparatus may be covered. The packaging bag manufacturing method as described.   The step of conveying the protective film includes folding the long-shaped protective film so that both end portions are overlapped, heat-sealing the folded portion of the folded protective film, and folding the protective film The packaging bag manufacturing method of Claim 13 including conveying a film.

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