JP5073061B2 - 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. 8, 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, for example, Japanese Patent Application Laid-Open No. 2006-240651.

  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.

  Then, an object of this invention is to provide 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 inside of the cylindrical film. A vertical seal device that forms a plurality of vertical seal portions in the cylindrical film for partitioning the space into a plurality of storage spaces in the horizontal direction, an input pipe that inputs a product into each of the plurality of storage spaces, and the cylindrical film A first seal portion having a plurality of plugs formed corresponding to each of the housing spaces and a second seal portion extending in the lateral direction over the entire width of the tubular film are formed by heat sealing. A transverse sealing device that cuts the tubular film between the first sealing portion and the second sealing portion, and a plurality of packaging bags each having a stopper are connected in the lateral direction. Multiple packaging bags A filling and packaging machine to be manufactured; a protective film attachment device for attaching a protective film covering the entire first seal portion of the multiple packaging bag to the multiple packaging bag; and the multiple packaging to which the protective film is attached A protective film mounting machine having a packaging bag separating device for cutting the bag along the plurality of vertical seal portions and separating the multiple packaging bags into a plurality of packaging bags.

  According to the packaging bag manufacturing apparatus of the present invention, first, a sheet-like film is made by a filling and packaging machine, and a multiple packaging bag in which a plurality of packaging bags each having a stopper is connected in the lateral direction is manufactured. Is done. And a protective film is attached to a multiple packaging bag so that a protective film may cover the whole 1st seal | sticker part which has the several stopper of a multiple packaging bag with the protective film attachment apparatus of a protective film mounting machine. The multiple packaging bags to which the protective film is attached are then separated into a plurality of 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. Therefore, according to the said invention, the packaging bag which has a stopper and comprised only by the film member can be manufactured efficiently.

  The protective film attachment device may include a seal bar for attaching the protective film to the multiple packaging bags by heat sealing. Further, the seal bar heat-seals the protective film over the entire length in the lateral direction of the multiple packaging bags and extends the plurality of vertical seal portions formed in the multiple packaging bags. It may be configured to perform heat sealing. Furthermore, the melting temperature of the protective film is lower than the melting temperature of the sheet-like film, and the seal bar is at a temperature equal to or higher than the melting temperature of the protective film and is higher than the melting temperature of the sheet-like film. You may be comprised so that heat sealing may be performed at low temperature.

  Moreover, the said protective film mounting machine may further have a protective film conveyance apparatus which conveys the said protective film. Further, the protective film conveying device is folded into a folding plate that folds the long-shaped protective film so that both ends thereof are overlapped, and a seal bar that heat-seals the folded portion of the folded protective film. You may have the conveyance roller which conveys the said protective 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 a plurality of inner spaces of the tubular film in the horizontal direction. A step of forming a plurality of vertical seal portions partitioning into a storage space in the cylindrical film, a step of introducing a product into each of the plurality of storage spaces, and a corresponding one of the storage spaces in the cylindrical film A first seal portion having a plurality of formed plugs and a second seal portion extending in the lateral direction over the entire width of the tubular film are formed by heat sealing, and the tubular film is formed by the first seal. Cutting between the seal part and the second seal part, and producing a multiple packaging bag in which a plurality of packaging bags each having a stopper are connected in the lateral direction. Manufacturing process and the multiple packaging bags Attaching a protective film covering the whole of the first seal part to the multiple packaging bag; cutting the multiple packaging bag to which the protective film is attached along the plurality of vertical seal parts; Separating the continuous packaging bag into a plurality of packaging bags;
Including a protective film mounting step.

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 protective film mounting machine in the packaging bag manufacturing apparatus which concerns on one Embodiment of this invention. It is a schematic front view of the protective film mounting machine shown in FIG. 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.

  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 protects by the filling packaging machine (refer FIGS. 2-4) which manufactures the multiple packaging bag in which the several packaging bag was connected to the horizontal direction, and a multiple packaging bag. And a protective film mounting machine (see FIGS. 5 and 6) for mounting the film and cutting the multiple packaging bags into individual packaging bags. 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.

  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 below the vertical sealing device 20 (FIG. For the sake of simplicity, 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 horizontal direction (horizontal direction), and a first seal having a plurality of plugs formed corresponding to the respective accommodation spaces of the tubular film 1 is provided. And a second seal portion 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 cut between the first seal portion and the second seal portion. A horizontal sealing device 30 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 first convex portion 32 is formed in a shape that forms a first seal portion having a plurality of plugs formed corresponding to each accommodation space of the tubular film 1, and the second convex portion 33. Is formed in a shape forming a second seal portion 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 sealing portions (shaded portions in the drawing) heat-sealed by the lateral sealing device 30 for the film 1 and the position where the film 1 is cut by the cutter 35. Yes.

  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. . 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 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 20, that is, when the film 1 is fed by the feeding pitch of one multiple packaging bag from the previous operation, the feeding of the film 1 is stopped and the horizontal sealing device 20 is stopped. The seal 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 multiple packaging bags are dropped (see FIG. 2). The multiple packaging bags obtained in this way are in a state where a plurality of packaging bags each having a stopper are connected in the lateral direction. Then, the squeeze roller 14 is opened, and the next product is dropped from the input pipe 12 into each accommodation space of the film 1.

[Protective film loading machine]
With reference to FIG.5 and FIG.6, the protective film mounting machine in the packaging bag manufacturing apparatus of this embodiment is demonstrated. FIG. 5 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. FIG. 6 is a schematic front view of the protective film mounting machine shown in FIG. However, for simplification of the drawing, the illustration of the conveying devices 51 to 53 shown in FIG. 6 is omitted in FIG. 5, and the illustration of the protective film conveying device 70 shown in FIG. 5 is omitted in FIG.

  As shown in FIG. 5, the protective film mounting machine is provided along a heat seal portion having a cap shape formed at the leading edge of the multi-packaging bag by the lateral sealing device 30 (see FIG. 2, etc.) of the filling and packaging machine. A stopper cut device 60 for cutting the film 1, a protective film transport device 70 for transporting the protective film 71 to the tip of the multiple packaging bags, and a protective film for fusing and cutting the protective film 71 on the multiple packaging bags The mounting apparatus 80 and the packaging bag separation apparatus 90 which isolate | separates the multiple packaging bag by which the protective film 71 was fuse | melted into an individual packaging bag are provided.

  Furthermore, as shown in FIG. 6, the protective film mounting machine is configured such that the film 1 is cut by the first transport device 51 that transports the multiple packaging bags to the position where the cap cut device 60 is disposed, and the cap cut device 60. The second transport device 52 that transports the multiple wrapping bags to the position where the protective film transport device 70 and the protective film attachment device 80 are disposed, and the multiple wrapping bags to which the protective film 71 is fused are separated from the packaging bags. And a third transport device 53 that transports the device 90 to a position where the device 90 is disposed.

Hereinafter, each above-mentioned structure with which a protective film mounting machine is provided is demonstrated.
(1) Transport devices 51, 52, 53
Each of the conveying devices 51, 52, and 53 includes two conveying rollers 51a, 52a, and 53a, and conveying belts 51b, 52b, and 53b wound around the two conveying 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 multiple packaging bags placed on each transport device are transported by the rotation of the transport belt.
(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). One cut bar 61 is formed with a plug cutting blade 61a having a shape corresponding to a heat seal portion (first seal portion) having a plug shape formed at the tip of the multiple packaging bag. . The plug cutting blade 61a of this example is provided with a shape that forms a notch 111a (see FIG. 7) that is a notch for facilitating opening of the plug formed in each packaging bag. On the other hand, a groove (not shown) having a shape corresponding to the plug cutting blade 61a is formed in the other cut bar 62 arranged to face the cut bar 61. Therefore, when the two cut bars 61 and 62 are in contact with each other and sandwich the multiple packaging bags, an excess portion of the film 1 forming the multiple packaging bags is cut, and each of the multiple packaging bags is formed. It is possible to form a plug at the tip of the packaging bag.

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 the plug cutting blade 61a by it.
(3) Protective film transport device 70
The protective film transporting device 70 includes a folding plate 72 that folds a long-shaped protective film 71 along its longitudinal direction so that both ends thereof are overlapped, and a seal bar that heat-seals the folded portion of the folded protective film 71. 73 and a plurality of transport rollers 74 that transport the folded protective film 71 to a position that covers the front end portion of the multiple packaging bags transported by the second transport device 52. Among the plurality of transport rollers 74, at least the transport rollers 74 arranged on the transport path of the multiple packaging bags are movable in directions away from each other so as to be able to retract from the transport path. The protective film conveyance device 70 also includes an air nozzle 75 that blows air between the both end faces in order to form a gap between the both end faces of the folded protective film 71.

Note that the protective film 71 is made of a material having a lower fusing temperature than the film 1 (see FIG. 2 and the like) forming a multiple packaging bag and having an easy peel property 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). At least one seal bar 81 is provided with a convex portion 81 a that abuts the protective film 71 when the two seal bars 81, 82 sandwich the protective film 71. Further, 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 multiple packaging bag. The convex portion 81a performs heat sealing over the entire length in the longitudinal direction of the multiple packaging bags (the direction in which the plurality of packaging bags are arranged), and the vertical sealing device 20 (see FIG. 2 and the like) on the film 1 of the multiple packaging bags. It has a shape capable of performing heat sealing on the extension of the formed plurality of vertical seal portions.

The protective film attachment device 80 further includes a protective film cutting blade 83 that cuts the protective film 71 fused to the multiple packaging bags. The protective film cutting blade 83 cuts the protective film 71 along one side end surface of the multiple packaging bag.
(5) Packaging bag separating device 90
The packaging bag separating device 90 includes a plurality of separation cutting blades 91 for cutting and separating each packaging bag of the multiple packaging bags conveyed by the third conveying device 53. Each separation cutting blade 91 can be moved in a direction in contact with the third conveyance device 53 and a direction away from the third conveyance device 53 by a drive mechanism (not shown). The separation cutting blade 91 is disposed so as to cut the film 1 of the multi-packaging bag along the vertical seal portion formed by the vertical seal device 20 (see FIG. 2 and the like).

  In this example, the multiple wrapping bags are formed by connecting six wrapping bags, and the number of vertical seal portions to be cut is five. Therefore, the packaging bag separating apparatus 90 includes five separating cutting blades 91. As a matter of course, the number of separation cutting blades 91 provided in the packaging bag separating apparatus 90 can be changed as appropriate according to the number of vertical seal portions to be cut in the multiple packaging bags.

  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.

  Next, with reference to FIG.5 and FIG.6, operation | movement of the protective film mounting machine mentioned above is demonstrated.

  The multiple packaging bags manufactured by the above-described filling and packaging machine are transported by the first transport device 51 to the position where the stopper cut device 60 is disposed. At this time, the position of the front end portion of the multiple packaging bags is detected by a position detection unit (not shown) made of, for example, an optical sensor, and the front end portion of the multiple packaging bags is transferred to the plug cutting device 60 based on the detection result. On the other hand, the first transport device 51 is controlled so as to be aligned at an appropriate position.

  After the multiple wrapping bags are aligned with respect to the plug cutting device 60 in this way, the plug cutting device 60 is actuated to move the two cut bars 61 and 62 in a direction close to each other. The front end of the packaging bag is sandwiched between the cut bars 61 and 62. Then, the front-end | tip part of a multiple packaging bag is cut | disconnected by the cutting blade 61a of the cut bar 61, and the stopper 111 (refer FIG. 7) is formed in the front-end | tip of each packaging bag which comprises a multiple packaging bag. Thereafter, the cut bars 61 and 62 move away from each other, and the cut bars 61 and 62 are retracted from the conveyance path of the multiple packaging bags.

  Then, the 1st and 2nd conveyance apparatuses 51 and 52 are rotationally driven in the same direction, and a multiple packaging bag is conveyed on the 2nd conveyance apparatus 52 from the 1st conveyance apparatus 51. In addition, when delivering the multiple packaging bags in this way, the first and second transport devices 51 and 52 are arranged at intervals such that the multiple packaging bags do not fall from the gaps between them.

  Then, the protective film conveyance apparatus 70 is operated and the protective film 71 is conveyed to the conveyance path | route of a multiple packaging bag. The transport of the protective film 71 is performed by rotationally driving the transport roller 74 in a state where the transport rollers 74 are brought into contact with each other as shown in FIG. As the protective film 71 is conveyed in the direction of the arrow in FIG. 5 by the conveying roller 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 roller 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 roller 74 is stopped and the two seal bars 73 are separated. Then, the transport operation of the protective film 71 is performed. Therefore, the transport operation of the protective film 71 by the transport roller 74 is performed intermittently. The transport pitch of the protective film 71 by the transport roller 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 to the conveyance path of the multiple packaging bags with the folded portion being heat-sealed. The second transport device 52 is provided with a position detection unit (such as an optical sensor) that detects the position of the side end of the multiple packaging bags placed thereon, and based on the detection result. The transport roller 74 transports the protective film 71 to a position where the end of the protective film 71 coincides with the side end of the multiple packaging bag.

  The multiple packaging bags placed on the second transport device 52 are then transported by the second transport device 52 to a position where the protective film transport device 70 and the protective film attachment device 80 are disposed. At this time, air is blown from the air nozzle 75 toward both ends where the protective film 71 is overlapped, and a gap is formed between both ends of the protective film 71. The front end portion of the multiple packaging bags is inserted into the folded protective film 71 through the gap. Also in the second transport device 52, the position of the front end portion of the multiple packaging bags is detected by a position detection unit (not shown) composed of, for example, an optical sensor, and the front end portion of the multiple packaging bags is detected based on the detection result. The second transport device 52 is controlled so as to be aligned at an appropriate position with respect to the protective film transport device 70 and the protective film mounting device 80.

  Next, the protective film 71 is heat-sealed by the protective film attachment device 80 with respect to the multiple packaging bags inserted into the folded protective film 71 in the above-mentioned aligned state. 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 the multiple packaging bags are sandwiched therebetween, 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 whole 1st seal | sticker part (refer FIG. 4) of a multiple packaging bag is attached to a multiple packaging bag. At this time, the temperature of heat applied to the protective film 71 and the multiple packaging bags is set to a temperature equal to or higher than the melting temperature of the protective film 71 and lower than the melting temperature of the film 1. Thereby, it is possible to prevent the films 1 of the multiple packaging bags from being fused by the heat sealing operation by the protective film attaching device 80.

  Subsequently, the protective film cutting blade 83 is lowered while the protective film 71 and the multiple packaging bags are sandwiched between the seal bars 81 and 82, and the protective film 71 is cut along the side end portions of the multiple packaging bags. . Thereafter, the transport roller 74 and the seal bars 81 and 82 arranged in the transport path of the multiple packaging bags are separated from each other, and the protective film cutting blade 83 is raised, and these are retracted from the transport path of the multiple packaging bags. .

  Next, the second and third transport devices 52 and 53 are driven to rotate in the same direction, so that the multiple packaging bags are transported from the second transport device 52 onto the third transport device 53. The second and third transfer devices 52 and 53 are also arranged at intervals such that the multiple packaging bags do not fall from the gaps between them when delivering the multiple packaging bags in this way. Then, the multiple packaging bags placed on the third conveying device 53 are conveyed by the second conveying device 52 to the position where the packaging bag separating device 90 is disposed. Also in the third transport device 53, the position of the front end portion of the multiple packaging bags is detected by a position detection unit (not shown) composed of, for example, an optical sensor, and the multiple packaging bags are packaged based on the detection result. The third transport device 53 is controlled so as to be aligned at an appropriate position with respect to the bag separating device 90.

  Subsequently, the packaging bag separation device 90 is operated to lower the separation cutting blade 91, and the multiple packaging bags aligned with the packaging bag separation device 90 are cut along the vertical seal portion. At the same time, a punch hole forming part (not shown) is operated to form a punch hole in the heat seal part formed in the folded part of the protective film 71.

  By the above operation, individually separated packaging bags are obtained.

  According to the packaging bag manufacturing apparatus of the present embodiment, first, a plurality of packaging bags each formed with a plug are formed in a lateral direction by forming a sheet-like film 1 by a filling and packaging machine. Multiple packaging bags are manufactured. Then, the protective film 71 is provided so that the protective film 71 covers the entirety of the first seal portion (see FIG. 4) having a plurality of plugs of the multiple packaging bags by the protective film attaching device 80 of the protective film mounting machine. Attached to multiple packaging bags. The multiple packaging bags to which the protective film 71 is attached are then separated into a plurality of 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. 5 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 housed in a support container as shown in FIG.

<Modification>
In the above description, the configuration in which the protective film 71 is attached to the film 1 of the multiple packaging bag by the protective film attaching device 80 is described as an example, but the means for attaching the protective film 71 by the protective film attaching device 80 is described here. However, the protective film 71 can be attached to the film 1 of the multiple packaging bag 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 multiple packaging bag by fusion as in these means, but by applying an adhesive to the protective film 71 and sticking it to the film 1 of the multiple packaging bag. The protective film 71 may be attached to the film 1 of the multiple packaging bag.

In the above description, the packaging bag separating apparatus shown in FIGS. 4 and 5 is described as an example in which the plug cutting device 60 is provided. However, the plug cutting device is used in the filling and packaging machine shown in FIGS. It may be provided. Or while cutting the cylindrical film 1 between the 1st seal | sticker part and the 2nd seal | sticker part of the cutter 35 (refer FIG. 4) with which the horizontal sealing apparatus 30 of the filling packaging machine was equipped, a cylindrical film It is possible to combine the function of the plug cut device in the lateral seal device 30 by cutting the shape 1 along the first seal portion so that an excess portion of the film 1 can be removed.

Claims (12)

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 to partition the internal space of the cylindrical film into a plurality of accommodation spaces in the horizontal direction;
An input pipe for supplying a product to each of the plurality of accommodating spaces;
A first seal portion having a plurality of plugs formed corresponding to each of the accommodation spaces in the tubular film, and a second seal portion extending in the lateral direction over the entire width of the tubular film. A transverse sealing device that is formed by heat sealing and that cuts the tubular film between the first sealing portion and the second sealing portion;
A filling and packaging machine for manufacturing a multiple packaging bag in which a plurality of packaging bags each having a cap are connected in the lateral direction;
A protective film attachment device for attaching a protective film covering the whole of the first seal portion of the multiple packaging bag to the multiple packaging bag;
A packaging bag separating device for cutting the multiple packaging bags to which the protective film is attached along the plurality of vertical seal portions and separating the multiple packaging bags into a plurality of packaging bags;
A protective film mounting machine having
A packaging bag manufacturing apparatus.   The said protective film attachment apparatus is a packaging bag manufacturing apparatus of Claim 1 provided with the seal bar which attaches the said protective film to the said multiple packaging bag by heat sealing.   The seal bar heat-seals the protective film over the entire length in the lateral direction of the multiple packaging bags, and heats the extension of the plurality of vertical seal portions formed in the multiple packaging bags. The packaging bag manufacturing apparatus of Claim 2 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 2 or 3, 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 is a packaging bag manufacturing apparatus of any one of Claim 1 to 4 which further has the protective film conveyance apparatus which conveys the said protective film.   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 5, further comprising a conveyance roller that conveys 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 for partitioning the internal space of the tubular film into a plurality of housing spaces in the horizontal direction;
Introducing a product into each of the plurality of storage spaces;
A first seal portion having a plurality of plugs formed corresponding to each of the accommodation spaces in the tubular film, and a second seal portion extending in the lateral direction over the entire width of the tubular film. Forming by heat sealing and cutting the tubular film between the first seal portion and the second seal portion;
A plurality of packaging bags, each of which includes a plurality of packaging bags each provided with a cap, and a plurality of packaging bags for manufacturing a plurality of packaging bags,
Attaching a protective film covering the whole of the first seal part of the multiple packaging bag to the multiple packaging bag;
Cutting the multiple packaging bags to which the protective film is attached along the plurality of vertical seal portions, and separating the multiple packaging bags into a plurality of packaging bags;
A protective film mounting process including:
A method for manufacturing a packaging bag.   The packaging bag manufacturing method according to claim 7, wherein the step of attaching the protective film to the multiple packaging bags includes attaching the protective film to the multiple packaging bags by heat sealing.   Heat sealing is performed on the protective film over the entire length in the lateral direction of the multiple packaging bags, and heat sealing is performed on the extension of the plurality of vertical seal portions formed in the multiple packaging bags. Item 9. A packaging bag manufacturing method according to Item 8. 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 8 or 9, 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 packaging bag manufacturing method according to any one of claims 7 to 10, wherein the protective film mounting step further includes a step of conveying the protective film.   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 11 including conveying a film.

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