JP5249702B2 - Bag making filling and packaging machine and bag making filling and packaging method - Google Patents

Description

  The present invention relates to a bag making and packaging machine and a bag making filling and packaging method for producing a self-supporting bag filled with a product.

  Conventionally, as shown in FIG. 17, a self-supporting bag 1101 having a plug member 1102 for discharging a product filled therein is known. The self-supporting bag 1101 has a configuration in which sealing portions 1104 are formed on three 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 a self-supporting bag accommodates a product having fluidity such as a food and drink such as juice, juice containing pulp and jelly, and a pharmaceutical such as enteral nutrient.

  The plug member 1102 includes a detachable cap 1102a having a threaded portion, for example. Therefore, by removing the cap 1102a from the self-supporting bag 1101, the stopper member 1102 can be opened and the product in the self-supporting bag 1101 can be sucked out.

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

  However, the self-standing bag provided with the above-described plug member needs to prepare a plug member separately from the film member that forms the housing portion. Therefore, in addition to the increase in material cost, the manufacturing process becomes complicated and the manufacturing cost increases. There is a problem of becoming higher.

  In addition, the self-supporting bag provided with the above-described plug member is generally formed in a size (so-called drinking-out size) that accommodates an amount of product that can be used up once. Therefore, when the product in the free-standing bag is consumed by one use, the free-standing bag is immediately discarded. 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 self-supporting bag of a drink-out size has a large burden on the environment.

  In addition, since the cap member with a removable cap is complicated in structure and expensive, such a cap member is provided in a free-standing bag that is discarded after a single use. It becomes one cause.

  Then, an object of this invention is to provide the bag making filling packaging machine and bag making filling packaging method which can manufacture the self-supporting bag which has a cap and was comprised only by the film member.

  In order to achieve the above object, a bag making and filling machine according to the present invention is a long sheet-shaped inner bag film that forms an inner bag filled with a product, and a length that covers at least a plug formed on the inner bag. A bag making and filling machine that fills a product by making a bag while feeding the outer bag film of a long sheet in a state of being overlapped with each other, and a feeding pipe disposed in a vertical direction for feeding the product And a bag making guide for making the outer bag film and the inner bag film into a cylindrical shape, and the width of at least the inner bag film among the outer bag film and the inner bag film produced in the cylindrical shape. Folding guides that fold inward in the longitudinal direction of the film and form at least two peaks on the inner bag film, and both end portions of the inner bag film are connected to the plug of the inner bag. Cut into shape to form A cutting part that forms a plug forming part, a bottom seal mechanism that heat-seals at least two crests formed on the inner bag film by the folding guide along the longitudinal direction of the film, and the cylindrical shape A top seal mechanism that heat-seals both side ends of the outer bag film and the inner bag film that are superposed on each other along the longitudinal direction of the film, and is disposed below the input pipe, A bottom seal mechanism and a side seal mechanism that thermally seals the outer bag film and the inner bag film heat-sealed by the top seal mechanism and cuts the heat-sealed portion.

  According to the bag making and filling machine of the present invention, the outer bag film and the inner bag film are formed into a cylindrical shape by the bag making guide, and at least the inner bag film is folded inward by the folding guide to form two peaks. The At least those peak portions formed on the inner bag film are heat-sealed by the bottom seal mechanism to form the bottom seal portion of the self-supporting bag. At both end portions where the inner bag film is overlapped, a plug forming portion that becomes a plug of a self-supporting bag manufactured by this bag making filling and packaging machine is formed by a cutting portion, and both end portions of the inner bag are inner bag Heat sealing is performed by the top seal mechanism to form the inner bag top seal portion of the self-supporting bag. Furthermore, both end portions of the overlapped outer bag films are heat-sealed by the outer bag top seal mechanism to form an outer bag top seal portion of a self-supporting bag. After the product is put into the inner bag film from the feeding pipe, the outer bag film and the inner bag film are heat-sealed in the lateral direction by the side seal mechanism to form the side seal portion of the self-supporting bag, and this heat-sealed portion Is disconnected. In this way, the bag making and filling machine of the present invention manufactures a self-supporting bag having an inner bag having a cap and an outer bag covering at least the cap.

  Since the self-supporting bag manufactured by the bag-filling-packaging machine of the present invention is composed only of a film member, it is a burden on the environment as compared with the conventional configuration including a plug of another member composed of resin or the like. And the cost can be reduced. In addition, since the plug is covered with the outer bag and kept clean until the outer bag is cut off, the mouth can be directly attached to the plug and the contents of the self-supporting bag can be drunk 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 while the stopper is inserted into the container such as a cup.

  The top seal mechanism includes the cutting part, and forms the plug forming part at both side end parts of the inner bag film formed into a cylindrical shape, and the inner part in which the plug forming part is formed. An inner bag top seal mechanism for heat-sealing both end portions of the bag film and an outer bag top seal mechanism for heat-sealing both end portions of the outer bag film formed into a cylindrical shape are separately provided. It is good also as a structure.

  Alternatively, the cutting part is arranged at a position where the plug forming part can be formed on both side ends of the inner bag film before being sent to the bag making guide, and the top seal mechanism is An inner bag top seal mechanism for heat-sealing both side ends of the inner bag film in which the cap formation part is formed, and an outer bag for heat-sealing both side edges of the outer bag film formed in the cylindrical shape It is good also as a structure provided with the top seal mechanism integrally.

  Further, the width of the outer bag film is wider than the width of the inner bag film, the inner bag film is sent downward in a state aligned with the center in the width direction of the outer bag film, the folding guide is The outer bag film and the inner bag film produced in a cylindrical shape by a bag making guide are folded inward along the longitudinal direction of the film and overlapped, and the outer bag film and the inner bag are overlapped. You may be comprised so that the said 2 peak part may be formed in a bag film.

  Alternatively, the outer bag film is composed of two long sheet-like films each having a width that covers at least a portion that forms the plug formed on both side ends of the inner bag film by the cutting portion, One of the films is aligned with the inner bag film so as to cover the plug forming portion formed on one side end of the inner bag film, and the other film is aligned with the inner bag film. The inner bag film and the outer bag film are sent downward in a state of being aligned with the inner bag film so as to cover the plug forming portion formed on the other side end, and the folding guide is Of the outer bag film and the inner bag film produced in a cylindrical shape by the bag making guide, the width direction center portion of the inner bag film is the inner side along the longitudinal direction of the film. Folding, it may be configured to form the two ridges only in said bag film.

  Further, a sterilization unit for sterilizing the outer bag film and the inner bag film by immersing the inner bag film and the outer bag film before being sent to the bag making guide, and the outer bag film and the You may provide the film sterilizer which has the drying part which dries the said disinfection liquid adhering to the inner bag film, and sends the said outer bag film and the said inner bag film to the said bag making guide.

  Further, the bag-making filling and packaging method of the present invention comprises a long sheet-shaped inner bag film that forms an inner bag filled with a product, and a long sheet-shaped outer cover that at least covers a plug formed on the inner bag. A step of making a bag in a cylindrical shape in a state of being stacked on top of each other, and sending the bag film downward; and at least a central portion in the width direction of the inner bag film formed in a cylindrical shape along the longitudinal direction of the film And then heat-sealing two crests formed by the folding along the longitudinal direction of the film, and cutting both end portions of the inner bag film into a shape that forms the plug of the inner bag Then, in the longitudinal direction of the film, the step of forming the plug forming portions at both end portions of the inner bag film and the both end portions of the inner bag film formed into the cylindrical shape are overlapped. And heat sealing along the cylindrical shape A step of heat-sealing along the longitudinal direction of the film in a state in which both end portions of the outer bag film are overlapped, and an inner bag in which the both end portions and the two peak portions are heat-sealed. The step of putting a product into the film, the inner bag film into which the product has been put, and the outer bag film covering at least the plug of the inner bag film are heat-sealed in the lateral direction, and this heat-sealing is performed. Cutting the cut portion.

  According to the present invention, it is possible to manufacture a self-supporting bag having a stopper and composed only of a film member.

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

[First Embodiment]
FIG. 1A is a perspective view showing a schematic configuration of a bag making filling and packaging machine according to the first embodiment of the present invention, and FIG. 1B is a front view of the bag making filling and packaging machine shown in FIG. 1A. Moreover, FIG. 2 is a figure which shows the self-supporting bag manufactured by the bag making filling packaging machine shown to FIG. 1A etc. FIG.

  As shown in FIG. 2 (a), the bag making and filling machine of the present embodiment includes a self-standing bag 60 comprising an inner bag 62 having a stopper 62a and an outer bag 61 containing the inner bag 62 therein. The inner bag 62 of the self-supporting bag 60 is filled with the filling material fed from the feeding pipe 12 (see FIG. 1) extending in the vertical direction while making a bag.

  Referring to FIG. 2A, a bottom seal portion 63 common to the outer bag 61 and the inner bag 62 is formed at the bottom of the self-supporting bag 60, and common to the outer bag 61 and the inner bag 62 on both sides of the self-supporting bag 60. A side seal portion 66 is formed. An inner bag top seal portion 64 constituting the upper edge of the inner bag 62 and the stopper 62a is formed on the upper portion of the inner bag 62. Further, an outer bag top seal portion 65 constituting the upper edge of the outer bag 61 is formed on the upper portion of the outer bag 61.

  First, an overall schematic configuration of the bag making filling and packaging machine of the present embodiment will be described.

  Referring to FIG. 1A and FIG. 1B, a bag filling and packaging machine includes a film supply roller around which an outer bag film 1 is wound, and a film supply roller around which an inner bag film 2 narrower than the outer film 1 is wound. Is installed. The bag making filling and packaging machine includes a guide roller 10 that supplies the film drawn from these film supply rollers to the downstream side in the film transport direction in a state where the inner bag film 2 is superimposed on the outer bag film 1. ing. The outer bag film 1 and the inner bag film 2 are aligned with each other so that the inner bag film 2 is superimposed on the central region of the outer bag film 1.

  Although not shown in the drawing, these films 1 and 2 are temporarily connected to each other so that no positional deviation occurs between the two films 1 and 2 that have been aligned as described above. A point seal mechanism for applying a point seal for stopping may be provided. This point seal mechanism can be installed between, for example, two guide rollers 10. It is preferable that the point seal for temporary fixing is applied to a region where the main seal is applied in a subsequent process. In this example, since the bottom seal is applied to the central region of the two films 1 and 2, it is preferable to apply the point seal to the center of the two films 1 and 2.

  On the downstream side of the guide roller 10 in the film conveyance direction, these films 1 and 2 are covered with the inner bag film 2 by the outer bag film 1 and both end portions of the inner bag film 2 are overlapped. A bag-making guide 11 that is folded so that both side ends of 1 are overlapped is arranged.

  On the downstream side of the bag making guide 11 in the film conveying direction, the folding guide 14 for folding the portion of the film 1, 2 folded by the bag making guide 11, which becomes the bottom surface of the free standing bag 60, and the inner bag overlapped with each other. A first pressing roller 13 is provided for bringing both end portions of the film 2 into close contact with each other. The inner bag film 2 is formed in a cylindrical shape by the bag making guide 11 and the first pressing roller 13.

  Further, on the downstream side of the bag making guide 11 in the film conveying direction, a feeding pipe 12 for placing a product into the inner bag film 2 formed in a cylindrical shape is arranged. The product has fluidity such as foods and beverages such as juice, juice containing pulp, jelly, and pharmaceuticals such as enteral nutrients.

  On the downstream side of the folding guide 14 and the first pressing roller 13 in the film conveying direction, there is a bottom seal mechanism 30 that heat-seals the films 1 and 2 folded by the bag making guide 11 and the folding guide 14 along the longitudinal direction thereof. Has been placed. The bottom seal mechanism 30 forms a bottom seal portion 63 (see FIG. 2A) of the entire self-supporting bag 60. Further, at the position facing the bottom seal mechanism 30, a plug forming portion that is a portion that becomes the plug 62 a (see FIG. 2A) is formed at both end portions of the overlapped inner bag film 2. An inner bag top seal mechanism 20 is disposed that cuts both side ends into a predetermined shape and heat-seals both side ends along the longitudinal direction of the inner bag film 2. The inner bag top seal mechanism 20 forms an inner bag top seal portion 64 (see FIG. 2A) of the inner bag 62 provided with a spigot 62a.

  On the downstream side in the film transport direction of these seal mechanisms 20 and 30, a second pressing roller 16 is disposed to bring both side ends of the outer bag film 1 folded by the bag making guide 11 into close contact with each other, and the second pressing roller 16 is arranged. On the further downstream side of the roller 16, an outer bag top seal mechanism 40 for heat-sealing both side ends of the outer bag film 1 along its longitudinal direction is disposed. The outer bag top seal mechanism 40 forms an outer bag top seal portion 65 (see FIG. 2A) of the outer bag 61.

  As shown in FIG. 1B, on the downstream side in the film transport direction of the seal mechanisms 20 and 30, the feed roller 17 rotates while sandwiching the films 1 and 2 and feeds the films 1 and 2 downstream in the transport direction. (In FIG. 1A, illustration of the feed roller 17 is omitted for simplification of the drawing).

  On the downstream side of the feed roller 17 in the film transport direction, a pair of squeeze rollers 15 that are opposed to each other with the films 1 and 2 interposed therebetween and are rotated in synchronization with the rotation of the feed roller 17 are provided. The squeeze roller 15 divides the product put into the inner bag film 2 by sandwiching the films 1 and 2 over the entire width, and moves in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown). Is possible. The squeeze roller 15 rotates with the films 1 and 2 interposed therebetween, thereby transporting the films 1 and 2 together with the feed roller 17 to the downstream side in the transport direction.

  Further, on the downstream side of the squeeze roller 15 in the film conveying direction, the films 1 and 2 are heat-sealed in the lateral direction (horizontal direction) to form a side seal portion 66 (see FIG. 2A) of the self-standing bag 60, A side seal mechanism 50 that cuts the films 1 and 2 in the lateral direction (horizontal direction) at the side seal portion 66 is disposed.

  Next, the bag making guide 11 and the folding guide 14, the inner bag top seal mechanism 20, the bottom seal mechanism 30, the outer bag top seal mechanism 40, and the side seal mechanism 50 will be described in detail.

(1) Bag Making Guide and Folding Guide As shown in FIG. 1A, the bag making guide 11 has an upper side longer than the lower side but smaller than the width of the outer bag film 1 and has two oblique sides. It is composed of trapezoidal plates having the same angle, and is disposed obliquely with respect to the vertical direction.

  The films 1 and 2 in a state of being overlapped via the guide roller 10 are fed downward while being in close contact with the upper surface of the bag making guide 11 by driving of the feed roller 17 (see FIG. 1B). Thereby, as shown to Fig.3 (a), the two ridges 3 are formed in the films 1 and 2, and the area | region between these ridges 3 becomes a bottom face of a self-supporting bag.

  The folding guide 14 is disposed below the lower side portion of the bag making guide 11 in order to further fold the region between the two ridges 3 formed on the films 1 and 2 inward. The folding guide 14 has a slope portion 14a that approaches the conveyance center line of the films 1 and 2 as it goes from the upper side of the vertical filling and packaging machine to the lower side in the conveyance direction of the films 1 and 2. When the films 1 and 2 on which the two ridges 3 are formed by the bag making guide 11 are further conveyed downward, a region between the two ridges 3 of the films 1 and 2 is inclined surface 14 a of the folding guide 14. Is folded in a V-shape inside. Thereby, the two peak parts 4 and the trough part 5 between them are formed in the films 1 and 2 (refer FIG.3 (b)).

(2) Inner bag top seal mechanism FIG. 4 is a view showing the inner bag top seal mechanism shown in FIG. 1A and the like, wherein FIG. 4 (a) is a top view thereof and FIG. 4 (b) is a front view thereof. FIG. 5 is a view showing the pressing surface of the seal bar of the inner bag top seal mechanism shown in FIG.

  As shown in FIG. 4, the inner bag top seal mechanism 20 has two cylinders 23 fixed to the frame with the rods 23 a facing each other, and a support member 22 fixed to the rod 23 a of each cylinder 23. It has two seal bars 21 and 24 supported so that the pressurizing surfaces face each other so as to be pressurized, and the inside of each seal bar 21 and 24 is folded by a bag making guide 11 (see FIG. 1A and the like). The open end of the bag film 2 is configured to pass through.

  Each seal bar 21, 24 has a built-in heating means (not shown) such as an electric heater. While the seal bars 21 and 24 are heated by these heating means, the cylinders 23 are simultaneously driven to advance the seal bars 21 and 24, whereby the open ends of the inner bag film 2 are heat-sealed.

  Here, as shown in FIG. 5, the pressure surfaces of the seal bars 21 and 24 have convex portions 21 a and 24 a that are higher than the surroundings in the hatched region. These convex parts 21a and 24a have a shape corresponding to the stopper 62a (see FIG. 2) formed in the inner bag. When the pressing surfaces of the seal bars 21 and 24 press the film 2, the convex portions 21 a and 24 a come into contact with the film 2. In addition, the length in the vertical direction of the convex portions 21a and 24a of the seal bars 21 and 24 is larger than the feed pitch of the film 2, and the inner bag top seal portion 64 is located at the upper and lower ends of the convex portions 21a and 24a. It overlaps with the side seal portion 66 (see FIG. 2) of the self-supporting bag 60.

  Further, groove portions 21b and 24b are formed along the convex portions 21a and 24a in the respective seal bars 21 and 24, and a cutter 24c is held in the groove portion 24b of one seal bar 24 so as to be able to advance and retreat. The cutter 24c protrudes so as to enter the groove portion 21b of the other seal bar 21 when the film 2 is sandwiched between the two seal bars 21, 24, thereby forming the film 2 along the convex portions 21a, 24a. Disconnect. As described above, the inner bag top seal mechanism 20 includes the cutter 24c as a cutting portion that cuts both end portions of the inner bag film 2 into a shape that forms the cap 62a of the inner bag 62.

  As described above, the inner bag top seal mechanism 20 is provided with the plug 62a by heat-sealing the open end of the inner bag film 2 into a shape having the plug 62a and cutting off an excess portion around the end. The inner bag top seal portion 64 (see FIG. 2) is formed.

(3) Bottom Seal Mechanism FIG. 6 is a view showing the bottom seal mechanism shown in FIG. 1A and the like. FIG. 6 (a) is a top view thereof and FIG. 6 (b) is a front view thereof. FIG. 7 is a view showing the pressing surface of the seal bar of the bottom seal mechanism shown in FIG.

  As shown in FIG. 6, the bottom seal mechanism 30 is attached to the frame of the bag making filling and packaging machine, and includes two cylinders 33 fixed to the frame 10 a with the rods 33 a facing each other, and the rods of the cylinders 33. The two seal bars 31 are supported by the support members 32 fixed to the respective 33a so that their pressure surfaces face each other, and the tip 10 is supported between the bottom seal bars supported by the frame 10a. And a receiving plate 34. The distance between each seal bar 31 and the receiving plate 34 is set such that the seal bar 31 is pressed against the receiving plate 34 by advancing the rod 33a of the cylinder 33.

  The films 1 and 2 folded by the bag making guide 11 (see FIG. 1A and the like) are sent with the receiving plate 34 inserted between the two ridges 4. Each seal bar 31 incorporates heating means (not shown) such as an electric heater. While heating each seal bar 31 with these heating means, each cylinder 33 is driven simultaneously and each seal bar 31 is advanced, so that the portions of the films 1 and 2 sandwiched between the receiving plate 34 and the seal bar 31 That is, the two peaks 4 are heat sealed simultaneously.

  Here, the pressurization surface of each seal bar 31 has a convex portion 31a that is higher than the surrounding area in the hatched area as shown in FIG. When pressurizing, the convex portion 31 a comes into contact with the films 1 and 2.

  The shape of the convex portion 31a determines the shape of the bottom seal portion 63 (see FIG. 2) of the self-standing bag 60, that is, the shape of the rib that allows the self-standing bag to stand. In the present embodiment, the bottom seal portion 63 forms a concave curve at the boundary between the region to be heat sealed and the region to be filled with the product, and the boundary between the region to be heat sealed by the side seal mechanism 50 is a curve. The shape is connected. Moreover, the length L in the vertical direction of the convex portion 31a is larger than the feed pitch P of the film 1, and the bottom seal portion 63 is located on the side seal portion 66 ( 2) (see FIG. 2).

  In addition, the convex portion 31a is formed with a concave portion 31b surrounded by the convex portion 31a, which does not pressurize the film when the films 1 and 2 are heat-sealed. The region of the formed valley portion 5 is provided at a position where pressure is not applied.

  With the above configuration, when the films 1 and 2 are heat-sealed by the bottom seal mechanism 30, the films 1 and 2 are not heat-sealed in the region corresponding to the recess 31 b of the seal bar 31 and the region of the valley portion 5. Therefore, these regions serve as escape of air bubbles generated when heat-sealing (air accumulation), and no air bubbles remain in the heat-sealed region, so that a good and clean heat seal can be performed.

(4) Outer bag top seal mechanism Similarly to the inner bag top seal mechanism 20 shown in FIG. 4, the outer bag top seal mechanism 40 includes two cylinders fixed to the frame with the rods facing each other, Two seal bars 41 (see FIG. 8) supported by pressurizing surfaces of the support members fixed to the rods so as to oppose each other, and a bag making guide is provided between the seal bars 41. 11 (see FIG. 1A and the like) is configured to allow the open end of the outer bag film 1 folded through. The configuration of the outer bag top seal mechanism 40 other than the seal bar 41 is the same as that of the inner bag top seal mechanism 20 shown in FIG.

  Each seal bar 41 incorporates heating means (not shown) such as an electric heater. While heating the seal bar 41 with these heating means, each cylinder is simultaneously driven to advance each seal bar 41, whereby the open end of the outer bag film 1 is heat-sealed.

  FIG. 8 is a view showing the pressing surface of the seal bar of the outer bag top seal mechanism.

  As shown in FIG. 8, the pressure surface of each seal bar 41 has a convex portion 41 a that is higher than the surrounding area in the hatched area. When the pressure surface of the seal bar 41 presses the film 1, the convex portion 41 a comes into contact with the film 1. In addition, the length in the vertical direction of the convex portion 41a of the seal bar 41 is larger than the feed pitch of the film 1, and the outer bag top seal portion 65 is a side seal of the self-supporting bag 60 at the upper and lower ends of the convex portion 41a. It overlaps with the part 66 (refer FIG. 2).

(5) Side seal mechanism As with the inner bag top seal mechanism 20 shown in FIG. 4, the side seal mechanism 50 is also fixed to the two cylinders fixed to the frame with the rods facing each other and to the rods of the cylinders. And two seal bars 51 and 52 (see FIG. 9) supported so that the pressurizing surfaces of the support members face each other so as to be capable of being pressed. A bag making guide is provided between the seal bars 51 and 52. 11 (refer FIG. 1A etc.) and the film | membrane 1 and 2 folded in are comprised. Since the configuration of the side seal mechanism 50 other than the seal bars 51 and 52 is the same as that of the inner bag top seal mechanism 20 shown in FIG.

  Each of the seal bars 51 and 52 incorporates a heating means (not shown) such as an electric heater. While the seal bars 51 and 52 are heated by these heating means, the cylinders are simultaneously driven to advance the seal bars 51 and 52, whereby the films 1 and 2 are heat-sealed in the horizontal direction (horizontal direction). Thus, the films 1 and 2 are formed into a bag shape.

  FIG. 9 is a view showing the pressing surface of the seal bar of the side top seal mechanism.

  As shown in FIG. 9, the pressure surfaces of the seal bars 51 and 52 have convex portions 51 a and 52 a that are higher than the surroundings in the hatched area. When the pressing surfaces of the seal bars 51 and 52 press the films 1 and 2, the convex portions 51 a and 52 a come into contact with the films 1 and 2. The lengths of these convex portions 51a and 52a are longer than the lateral width when the cylindrical films 1 and 2 are flattened. Therefore, the convex portions 51a and 52a forming the pressure surfaces of the seal bars 51 and 52 can heat-seal the films 1 and 2 over the entire width thereof.

  In addition, groove portions 51b and 52b extending in the longitudinal direction of the convex portions 51a and 52a are formed in the central portions of the convex portions 51a and 52a of the seal bars 51 and 52, respectively. Furthermore, a cutter 52c is held in the groove 52b of one seal bar 52 so as to be able to advance and retreat. The cutter 52c protrudes so as to enter the groove portion 21b of the other seal bar 21 after heat sealing the films 1 and 2 with the two seal bars 21 and 24, thereby causing the films 1 and 2 to move laterally (horizontal direction). Cut the free standing bag 60 from the films 1 and 2.

  As described above, the side seal mechanism 50 heat-seal the films 1 and 2 in the horizontal direction and cut the heat-seal portion in the horizontal direction to thereby remove the side seal portion 66 (see FIG. 2) of the self-standing bag 60. Form.

  Next, the filling and packaging operation by the above-described bag making filling and packaging machine will be described with reference to FIGS. 1A, 1B, and 10.

  Referring to FIGS. 1A and 1B, first, with the squeeze roller 15 and the side seal mechanism 50 open, the feed roller 17 is rotated while the product is being fed into the inner bag film 2 from the feeding pipe 12, and the film 1, Send 2 down. At this time, the films 1 and 2 have already been folded by the bag making guide 11 and the folding guide 14, and the bottom seal mechanism 30, the inner bag top seal mechanism 20 and the outer bag top seal mechanism 40 have a predetermined portion. Is heat sealed.

  When the films 1 and 2 are fed by a predetermined amount, the squeeze roller 15 is closed, and the product in the inner bag film 2 is divided by the squeeze roller 15.

  In this state, when the feed roller 17 and the squeeze roller 15 are further rotated and the films 1 and 2 are sent downward, as shown in FIG. The

  When the empty filling portion is sent between the side seal mechanisms 50, that is, when the films 1 and 2 are fed by the feed pitch P of one bag from the previous operation, the feeding of the films 1 and 2 is stopped, and the side seal mechanism is stopped. 50 cylinders (not shown) are projected to bring the seal bars 51 and 52 (see FIG. 9) closer to each other. Then, as shown in FIG.10 (b), the seal bars 51 and 52 are closed and the empty filling part of the films 1 and 2 is pressurized by these. When the seal bars 51 and 52 are closed, the heating means 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 52c provided on one seal bar 52 is advanced, and the heat-sealed portions of the films 1 and 2 are cut.

  When the heat-sealed portion is cut, the cylinders are retracted to separate the seal bars 51 and 52 from each other, and the resulting packaging bag is dropped (see FIG. 10C). Then, the squeeze roller 15 is opened and the next product is dropped from the charging pipe 12.

  As shown in FIG. 2 (a), the packaging body obtained as described above can stably stand with the bottom seal portion 63 heat-sealed by the bottom seal mechanism 30 (see FIG. 1A etc.) as the bottom. It becomes the self-supporting bag 60 which can be. The self-supporting bag 60 has a double structure of an outer bag 61 and an inner bag 62, and the self-supporting bag 60 is constituted only by a film member. Therefore, the self-supporting bag 60 according to the present embodiment has a smaller burden on the environment and can reduce the cost, as compared with a conventional configuration including a separate plug made of resin or the like.

  When taking out the contents of the self-supporting bag 60, first, the upper portion of the outer bag 61 is cut out to expose the plug 62a of the inner bag 62 (see FIG. 2B). And the inner bag 62 filled with a product is opened by cutting off the front-end | tip part of the stopper 62a. Since the spout 62a is covered with the outer bag 61 and kept clean until the outer bag 61 is cut off, the mouth can be directly attached to the spout 62a and the contents of the self-supporting bag 60 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 62a is inserted into a container such as a cup.

  As described above, according to the bag making and filling and packaging machine for self-supporting bags of the present embodiment, it is possible to manufacture a self-supporting bag having a cap and composed only of a film member.

[Second Embodiment]
FIG. 11 is a perspective view showing a schematic configuration of a bag making filling and packaging machine according to the second embodiment of the present invention. FIG. 12 is a view showing a self-supporting bag manufactured by the bag making filling and packaging machine shown in FIG.

  As shown in FIG. 12 (a), the bag making and filling machine of this embodiment is a self-supporting bag 150 comprising an inner bag 152 having a cap 152a and an outer bag 151 containing the inner bag 152 therein. Is filled in the inner bag 152 of the self-supporting bag 150 with the product introduced from the input pipe 112 (see FIG. 11) extending in the vertical direction.

  Referring to FIG. 12A, in the self-supporting bag 150 of this embodiment, the inner bag top seal portion 154 is sealed to the outer bag 151 so that an easy peel can be performed. The configuration of the self-supporting bag 150 of the present embodiment is the same as that of the self-supporting bag 60 described in the first embodiment except for this point. That is, a bottom seal portion 153 common to the outer bag 151 and the inner bag 152 is formed at the bottom of the free standing bag 150, and a side seal portion 156 common to the outer bag 151 and the inner bag 152 is formed on both sides of the free standing bag 150. Has been. An inner bag top seal portion 154 that forms the upper edge of the inner bag 152 and the stopper 152a is formed on the upper portion of the inner bag 152. Further, an outer bag top seal portion 155 constituting the upper edge of the outer bag 151 is formed on the upper portion of the outer bag 151.

  First, an overall schematic configuration of the bag making filling and packaging machine of the present embodiment will be described.

  The bag making and filling machine includes a film supply roller on which an outer bag film 101 which is a film having an easy peel property is wound, and a normal film (for example, a polyethylene film) which does not have an easy peel property. And a film supply roller around which the inner bag film 102 having a narrow width is wound. The bag making filling and packaging machine includes a guide roller 110 that supplies the film drawn from these film supply rollers to the downstream side in the film conveying direction in a state where the inner bag film 102 is superimposed on the outer bag film 101. ing. The outer bag film 101 and the inner bag film 102 are aligned with each other so that the inner bag film 102 is superimposed on a central region on the outer bag film 101.

  Although not shown in the drawing, the packaging machine of the present embodiment is provided with an inner bag cutting mechanism that cuts the inner bag film 102 until the inner bag film 102 is overlaid on the outer bag film 101. ing. The inner bag cutting mechanism is a cutting portion that cuts both side portions of the inner bag film 102 to form a plug forming portion that later becomes the plug 152a. This inner bag cutting mechanism can be configured similarly to the inner bag top seal mechanism 20 in the packaging machine of the first embodiment described with reference to FIGS. 4 and 5. However, the inner bag top seal mechanism 20 is provided with heating means and convex portions 21a and 24a on the seal bars 21 and 24 in order to perform heat sealing in addition to cutting the inner bag. Since the cutting mechanism does not require a heat sealing function, at least the heating means is not provided in the seal bar of the inner bag cutting mechanism.

  Also, although not shown in the figure, the films 101 and 102 are connected to each other so that the two films 101 and 102 superimposed in the above-described state are not displaced. A seal mechanism for providing a seal for temporarily fixing may be provided. This sealing mechanism can be installed between two guide rollers 110 that overlap the inner bag film 102 with the outer bag film 101. The temporary fixing seal is preferably applied to a region where the main seal is applied in a subsequent process. In this example, a temporary fixing seal is applied to a region where the side seals of the two films 101 and 102 are applied.

  On the downstream side of the guide roller 110 in the film transport direction, these films 101 and 102 are covered with the inner bag film 102 by the outer bag film 101 and both end portions of the inner bag film 102 are overlapped. A bag-making guide 111 that is folded into a cylindrical shape is arranged so that both side ends of 101 are overlapped.

  In addition, a charging pipe 112 is provided for charging a product into the inner bag film 102 formed in a cylindrical shape. The input pipe 112 extends into the cylindrical inner bag film 102 through an opening formed in the bag making guide 111. The product has fluidity such as foods and beverages such as juice, juice containing pulp, jelly, and pharmaceuticals such as enteral nutrients. In the present embodiment, other products such as solid materials can be put into the inner bag film 102 through the opening formed in the bag making guide 111.

  On the downstream side of the bag making guide 111 in the film conveyance direction, a folding guide 114 is provided for folding inward the portion of the film 101, 102 that is folded into a cylindrical shape by the bag making guide 111 to be the bottom surface of the self-standing bag 150. Yes. Further, on the downstream side of the folding guide 114 in the film transport direction, the folded film 114 is folded into a first pressing roller 113 that closely contacts both side ends of the folded films 101 and 102 and the folding guide 114 of the films 101 and 102. A second pressing roller 116 that closely contacts the portion is disposed.

  A bottom seal mechanism 130 for heat-sealing the films 101 and 102 folded by the bag making guide 111 and the folding guide 114 along the longitudinal direction is disposed on the downstream side of the pressing rollers 113 and 116 in the film conveying direction. Yes. The bottom seal mechanism 130 forms a bottom seal portion 153 (see FIG. 12A) of the entire self-supporting bag 150. Further, a top seal mechanism 120 that heat-seals both side ends of the folded outer bag film 101 and inner bag film 102 along the longitudinal direction of the film is disposed at a position facing the bottom seal mechanism 130. Yes. The top seal mechanism 120 forms an inner bag top seal portion 154 having a cap 152a of the inner bag 152 and an outer bag top seal portion 155 (see FIG. 12A) of the outer bag 151.

  Although not shown in the drawing, on the downstream side of the sealing mechanism 120, 130 in the film transport direction, a feed roller that rotates while sandwiching the films 101, 102 and feeds the film 101, 102 downstream in the transport direction is provided. (In FIG. 11, the illustration of the feed roller is omitted for simplification of the drawing).

  A pair of squeeze rollers 115 are provided on the downstream side of the feed roller in the film transport direction so that the films 101 and 102 are opposed to each other and can be rotated in synchronization with the rotation of the feed roller. The squeeze roller 115 divides the product put in the inner bag film 102 by sandwiching the films 101 and 102 over the entire width, and is moved in a direction away from each other and a direction in contact with each other by a drive mechanism (not shown). Is possible. The squeeze roller 115 conveys the films 101 and 102 to the downstream side in the conveying direction together with the feed roller by rotating with the films 101 and 102 sandwiched therebetween.

  Further, on the downstream side of the squeeze roller 115 in the film conveying direction, the films 101 and 102 are heat-sealed in the lateral direction (horizontal direction) to form a side seal portion 156 (see FIG. 12A) of the self-standing bag 150, A side seal mechanism 140 that cuts the films 101 and 102 in the lateral direction (horizontal direction) along the side seal portion 256 is disposed.

  Next, the top seal mechanism 120 described above will be described in detail.

  Similar to the inner bag top seal mechanism 20 in the first embodiment shown in FIG. 4, the top seal mechanism 120 is fixed to two cylinders fixed to the frame with the rods facing each other, and fixed to the rods of the cylinders, respectively. And two seal bars 121 (see FIG. 13) supported so that the pressurizing surfaces of the support members face each other so as to be capable of being pressed, and between the seal bars 121, a bag making guide 111 (FIG. 11). The outer bag film 101 folded in the reference) is configured to pass through. The configuration of the outer bag top seal mechanism 120 other than the seal bar 121 is the same as that of the inner bag top seal mechanism 20 shown in FIG.

  Referring to FIG. 13, each seal bar 121 incorporates a heating means (not shown) such as an electric heater. Each seal bar 121 is formed with a first convex portion 121 a that forms the inner bag top seal portion 154 of the inner bag 152 and a second convex portion 121 b that forms the inner bag top seal portion 155 of the outer bag 151. Has been. While heating the seal bar 121 with these heating means, each cylinder is simultaneously driven to advance each seal bar 121, whereby the open end of the outer bag film 101 and the open end of the inner bag film 102 are heat sealed. The

  The top seal mechanism 120 in the present embodiment is configured to seal the outer bag film 101 covering the inner bag film 102 from the outside. Therefore, the inner bag top seal portion 155 is formed on the inner bag film 102 and the inner bag top seal portion 155 of the outer bag film 101 is applied to the portion of the seal bar 121 that is heat sealed by the first convex portion 121a. The contacting portion is heat sealed to the inner bag film 102. However, since the outer bag film 101 has easy peel properties as described above, the outer bag film 101 can be easily peeled off from the inner bag film 102 when the bag is opened.

  Since the folding guide 114, the bottom seal mechanism 130, and the side seal mechanism 140 in this embodiment have the same configurations as those described in the first embodiment, detailed descriptions thereof are omitted here. In addition, since the filling and packaging operation by the bag making and packaging machine of the present embodiment is the same as that of the first embodiment, detailed description thereof is omitted.

  As shown in FIG. 12A, the self-supporting bag 150 obtained by the bag making and filling and packaging machine of the present embodiment is also stable with the bottom seal portion 153 heat-sealed by the bottom seal mechanism 130 (see FIG. 11) as the bottom. It is possible to stand up. The self-supporting bag 150 also has a double structure of an outer bag 151 and an inner bag 152, and the self-supporting bag 150 is constituted only by a film member. Therefore, the self-supporting bag 150 according to the present embodiment also has a smaller burden on the environment and can be reduced in cost as compared with a conventional configuration including a separate plug made of resin or the like.

  When taking out the contents of the self-supporting bag 150, first, the upper portion of the outer bag 151 is cut out (see FIG. 12B). Then, the side seal portion 156 of the outer bag 151 is peeled off, and the portion sealed by the plug 152a of the outer bag 151 is peeled off from the plug 152a to expose the plug 152a (FIG. 12C). reference). Finally, the inner bag 152 filled with the product is opened by cutting off the tip of the plug 152a. The cap 152a of the self-standing bag 150 according to the present embodiment is also covered with the outer bag 151 and kept clean until the outer bag 151 is cut off. You can drink and eat the contents. Alternatively, the contents can be transferred to the container so that the contents do not spill out of the container during extraction by extracting the contents while the elongated stopper 152a is inserted into a container such as a cup.

  As described above, according to the bag making and filling and packaging machine for self-supporting bags of the present embodiment, it is possible to manufacture a self-supporting bag having a cap and composed only of a film member.

[Third Embodiment]
FIG. 14: is a perspective view which shows schematic structure of the bag making filling packaging machine based on the 3rd Embodiment of this invention. FIG. 15 is a view showing a self-supporting bag manufactured by the bag making filling and packaging machine shown in FIG.

  As shown in FIG. 12A, the bag making and filling machine of this embodiment is a self-supporting bag composed of an inner bag 252 having a cap 252a and an outer bag 251 covering the cap 252a of the inner bag 152. While the bag 250 is made, the inner bag 252 of the self-supporting bag 250 is filled with a product charged from a loading pipe 212 (see FIG. 14) extending in the vertical direction.

  Referring to FIG. 15A, the self-supporting bag 250 of the present embodiment includes an inner bag top seal portion 254 that forms the upper edge of the inner bag 252 and the plug 252 a, and a bottom seal that forms the bottom portion of the inner bag 252. It has the inner bag 252 in which the part 253 was formed, and the outer bag 251 which covers the cap 252a of the inner bag 252. An outer bag top seal portion 255 is formed on the upper edge of the outer bag 251. The outer bag 251 is sealed to the inner bag top seal portion 254 of the inner bag 252 so that an easy peel is possible.

  First, the overall schematic configuration of this bag making filling and packaging machine will be described.

  The bag making and filling machine includes two film supply rollers each wound with an outer bag film 201 which is a film having an easy peel property, and an ordinary film (for example, a polyethylene film) having no easy peel property. A film supply roller around which the bag film 202 is wound is installed.

  Although not shown in the drawing, the packaging machine of this embodiment is cut into the inner bag film 202 before the inner bag film 202 is overlaid on the outer bag film 201 as in the second embodiment. An inner bag cutting mechanism is provided. The inner bag cutting mechanism is a cutting portion that cuts both side portions of the inner bag film 202 to form a plug forming portion that later becomes the plug 252a. This inner bag cutting mechanism can be configured similarly to the inner bag top seal mechanism 20 in the packaging machine of the first embodiment described with reference to FIGS. 4 and 5. However, the inner bag top seal mechanism 20 is provided with heating means and convex portions 21a and 24a on the seal bars 21 and 24 in order to perform heat sealing in addition to cutting the inner bag. Since the cutting mechanism does not require a heat sealing function, at least the heating means is not provided in the seal bar of the inner bag cutting mechanism.

  The bag-making filling and packaging machine includes a guide roller 210 that supplies the film drawn from these film supply rollers to the downstream side in the film conveyance direction in a state where the inner bag film 202 is superimposed on the outer bag film 201. ing. One outer bag film 201 of the two outer bag films 201 is aligned with the inner bag film 202 so as to cover the plug forming portion formed at one side end of the inner bag film 202, and the other The outer bag film 201 is aligned with the inner bag film 202 so as to cover the plug forming portion formed at the other side end of the inner bag film 202. Therefore, the outer bag film 201 and the inner bag film 202 are aligned so that the inner bag film 202 straddles between the two outer bag films 201 arranged at intervals.

  Also, although not shown in the figure, these films 201, so as not to cause misalignment between the outer bag film 201 and the inner bag film 202 that are overlaid in the above-described state of alignment. A sealing mechanism is provided that provides a seal for temporarily fixing the 202 to each other. This sealing mechanism can be installed between two guide rollers 210 that superimpose the inner bag film 202 on the outer bag film 201. The temporary fixing seal is preferably applied to a region where the main seal is applied in a subsequent process. In this example, a temporary fixing seal is applied to an area where the side seals of the films 201 and 202 are applied. By performing the temporary fixing seal in this manner, the outer bag film 201 and the inner bag film 202 can be integrally conveyed.

  On the downstream side of the guide roller 210 in the film conveying direction, these films 201 and 202 are overlapped with both end portions of the inner bag film 202, and the two outer bag films 201 are both end portions of the inner bag film 202. A bag-making guide 211 is disposed so as to cover both sides of the two outer bag films 201 so as to be covered from the outside. Thereby, the inner bag film 202 is formed in a cylindrical shape.

  Further, a charging pipe 212 is provided for charging the product into the inner bag film 202 formed in a cylindrical shape. The input pipe 212 extends through the opening formed in the bag making guide 211 into the cylindrical inner bag film 202. The product has fluidity such as foods and beverages such as juice, juice containing pulp, jelly, and pharmaceuticals such as enteral nutrients. In the present embodiment, other products such as solid materials can be put into the inner bag film 202 through the opening formed in the bag making guide 211.

  On the downstream side of the bag making guide 211 in the film conveying direction, a folding guide 214 is provided for folding inward the portion that becomes the bottom surface of the inner bag film 202 folded into a cylindrical shape by the bag making guide 211. Further, on the downstream side of the folding guide 214 in the film transport direction, the folded sides are folded into the first pressing roller 213 for bringing both side ends of the folded films 201 and 202 into close contact with each other and the folding guide 214 of the inner bag film 202. A second pressing roller 216 that closely contacts the portion is disposed.

  A bottom seal mechanism 230 that heat-seals the inner bag film 202 folded by the bag making guide 211 and the folding guide 214 along the longitudinal direction is disposed on the downstream side of the pressing rollers 213 and 216 in the film conveying direction. Yes. The bottom seal mechanism 230 forms a bottom seal portion 253 (see FIG. 15A) of the self-standing bag 250. Further, a top seal mechanism 220 that heat-seals both ends of each of the folded outer bag film 201 and inner bag film 202 along the longitudinal direction of the film is disposed at a position facing the bottom seal mechanism 230. Yes. The top seal mechanism 220 forms an inner bag top seal portion 254 having a cap 252a of the inner bag 252 and an outer bag top seal portion 255 (see FIG. 15A) of the outer bag 251.

  Although not shown in the drawing, on the downstream side in the film transport direction of the seal mechanisms 220 and 230, a feed roller that rotates while sandwiching the films 201 and 202 and feeds the films 201 and 202 downstream in the transport direction is provided. (In FIG. 14, the illustration of the feed roller is omitted for simplification of the drawing).

  A pair of squeeze rollers 215 that are opposed to each other with the films 201 and 202 interposed therebetween and are rotated in synchronization with the rotation of the feed roller are provided on the downstream side of the feed roller in the film transport direction. The squeeze roller 215 divides the filling material put into the inner bag film 202 by sandwiching the films 201 and 202 over the entire width, and in a direction away from each other and a direction in contact with each other by a driving mechanism (not shown). It is movable. The squeeze roller 215 rotates with the films 201 and 202 interposed therebetween, thereby transporting the films 201 and 202 together with the feed roller to the downstream side in the transport direction.

  Further, on the downstream side of the squeeze roller 215 in the film conveying direction, the films 201 and 202 are heat-sealed in the lateral direction (horizontal direction) to form a side seal portion 256 (see FIG. 15A) of the self-standing bag 250, A side seal mechanism 240 that cuts the films 201 and 202 in the lateral direction (horizontal direction) along the side seal portion 256 is disposed.

  Note that the folding guide 214, the top seal mechanism 220, the bottom seal mechanism 230, and the side seal mechanism 240 in the present embodiment have the same configurations as those described in the second embodiment, and therefore detailed descriptions thereof are provided here. Description is omitted. Further, since the filling and packaging operation by the bag making and packaging machine of this embodiment is the same as that of the second embodiment, detailed description thereof is omitted.

  As shown in FIG. 15A, the self-supporting bag 250 obtained by the bag making and filling machine of this embodiment is also stable with the bottom seal portion 253 heat-sealed by the bottom seal mechanism 230 (see FIG. 14) as the bottom. It is possible to stand up. Note that the self-supporting bag 253 of this embodiment is different from the self-supporting bags of the other embodiments, and the outer bag 251 and the inner bag 252 do not have a double structure. In the self-supporting bag 250 of this embodiment, a main body portion that accommodates a product is formed only by the inner bag 252, and the outer bag 251 is provided to cover at least the spigot 252 a of the inner bag 252. The self-supporting bag 250 of the present embodiment is also composed only of a film member, and the burden on the environment is small and the cost is reduced as compared with the conventional configuration including a plug of another member composed of resin or the like. be able to.

  When taking out the contents of the self-supporting bag 250, first, the non-seal portion 251a of the outer bag 251 is pulled to peel off the side seal portion 256 of the outer bag 251 and the portion sealed by the cap 252a of the outer bag 251 Is removed from the stopper 152a, and the outer bag 251 is removed from the inner bag 252 (see FIG. 15B). Thereby, the stopper 252a of the inner bag 252 is exposed. And the inner bag 252 filled with a product is opened by cutting off the front-end | tip part of the stopper 252a. The cap 252a of the self-standing bag 250 according to the present embodiment is also covered with the outer bag 251 until it is removed until the outer bag 251 is removed. Therefore, the mouth of the self-standing bag 250 is directly attached to the plug 252a. You can drink and eat the contents. Alternatively, the contents can be transferred to the container so that the contents are not spilled out during extraction by extracting the contents in a state where the elongated stopper 252a is inserted into a container such as a cup.

  As described above, according to the bag making and filling and packaging machine for self-supporting bags of the present embodiment, it is possible to manufacture a self-supporting bag having a cap and composed only of a film member.

[Other Embodiments]
FIG. 16 is a diagram showing a film sterilization apparatus for sterilizing a film supplied to the bag making and filling packaging machine of each embodiment described above.

  As shown in FIG. 16, the film sterilization apparatus 300 dries the film 301 sterilized with the sterilizing liquid through the sterilizing part 310 and the sterilizing part 310 that sterilizes the film 301 drawn from the film supply roller with the sterilizing liquid. And a drying unit 320 for sending to the bag making guide of the bag making filling and packaging machine. The film 301 dried by the drying unit 320 is sent to the bag making guide via the guide roller in the bag making filling and packaging machine of each embodiment described above.

  The sterilization unit 310 has a sterilization layer 311 filled with a hydrogen peroxide solution that is a sterilization solution. The sterilization layer 311 is provided with a film drawing unit 312 that can be freely inserted into and removed from the sterilization layer 311. The film routing unit 312 has a plurality of rollers arranged alternately, and the films 301 are drawn in a meandering state by alternately winding the films 301 around these rollers.

  When the bag making and packaging machine is operated with the film drawing unit 312 installed in the sterilization layer 311 filled with the hydrogen peroxide solution, the film 301 is sent while being immersed in the hydrogen peroxide solution. 301 is sterilized.

  The drying unit 320 dries the aqueous hydrogen peroxide solution attached to the film 301 when the film 301 passes through the sterilization unit 310 by blowing hot air or the like.

  By combining this film sterilization apparatus 300 with the bag making filling and packaging machine of each of the embodiments described above and performing filling and packaging using the sterilized film, a sterile self-supporting bag can be manufactured. Providing healthy foods with no preservatives added, since it is not necessary to add preservatives to the contents, which can extend the shelf life of the product by making the self-supporting bag sterile. And the like. When filling and packaging using such a sterilized film, it is preferable that the contents to be filled therein are also put into the film in a sterilized state.

  In addition, although the structure which supplies one film 301 was demonstrated here, in the bag making filling packaging machine of each embodiment mentioned above, it is comprised so that a film may be supplied from two or three film supply rollers. Therefore, the film sterilization apparatus 300 includes a plurality of sterilization units 310 and drying units 320 according to the number of films, or the sterilization apparatus 310 and the drying apparatus 320 can sterilize and dry these films in common. All the films supplied to the bag making filling and packaging machine are sterilized.

  In addition, in order to prevent germs floating in the air from adhering to the film sterilized by the film sterilizer 300 or adhering to the aseptic contents put into the cylindrical film from the feeding pipe. The film sterilization apparatus 300 and the bag making filling and packaging machine are surrounded by a partition wall to form an aseptic room, and air that has been cleaned in an aseptic state is fed into the aseptic room so that the atmospheric pressure in the aseptic room is greater than the ambient atmospheric pressure. It is preferable to provide a configuration in which the height is also increased. Thereby, since germs floating in the air do not enter the sterile room, a sterile self-standing bag can be manufactured more reliably and stably.

It is a perspective view which shows schematic structure of the bag making filling packaging machine which concerns on the 1st Embodiment of this invention. It is a front view of the bag making filling packaging machine shown in FIG. 1A. It is a figure which shows the self-supporting bag manufactured with the bag making filling packaging machine shown to FIG. 1A. FIG. 1A is a cross-sectional view of the film that has passed through the bag making guide shown in FIG. 1A and the like, and FIG. 1B is a cross-sectional view of the film that has passed through the folding guide shown in FIG. 1A and the like. It is a figure which shows the inner bag top seal mechanism shown to FIG. 1A etc. It is a figure which shows the pressurization surface of the seal bar of the inner bag top seal mechanism shown in FIG. It is a figure which shows the bottom seal mechanism shown to FIG. 1A etc. It is a figure which shows the pressurization surface of the seal bar of the bottom seal mechanism shown in FIG. It is a figure which shows the pressurization surface of the seal bar of an outer bag top seal mechanism. It is a figure which shows the pressurization surface of the seal bar of a side top seal mechanism. It is a figure explaining the filling packaging operation | movement by the bag making filling packaging machine shown to FIG. 1A etc. FIG. It is a perspective view which shows schematic structure of the bag making filling packaging machine which concerns on the 2nd Embodiment of this invention. It is a figure which shows the self-supporting bag manufactured with the bag making filling packaging machine shown in FIG. It is a figure which shows the pressurization surface of the seal bar of the top seal mechanism shown in FIG. It is a perspective view which shows schematic structure of the bag making filling packaging machine which concerns on the 3rd Embodiment of this invention. It is a figure which shows the self-supporting bag manufactured with the bag making filling packaging machine shown in FIG. It is a figure which shows the film sterilizer which sterilizes the film supplied to a bag making filling packaging machine. It is a figure which shows the conventional self-supporting bag.

Explanation of symbols

1, 101, 201 Outer bag film 2, 102, 202 Inner bag film 10, 110, 210 Guide roller 11, 111, 211 Bag making guide 12, 112, 212 Input pipe 13, 113, 213 First pressing roller 14, 114, 214 Folding guides 15, 115, 215 Squeeze rollers 16, 116, 216 Second pressing roller 17 Feed roller 20 Inner bag top seal mechanism 30, 130, 230 Bottom seal mechanism 40 Outer bag top seal mechanism 50, 140, 240 side Seal mechanism 60, 150, 250 Self-standing bag 120, 220 Top seal mechanism 300 Film sterilizer 310 Sterilizer 320 Dryer

Claims (12)

A long sheet-shaped inner bag film that forms an inner bag filled with a product and a long sheet-shaped outer bag film that covers at least the spigot formed on the inner bag are fed downward in a state of being overlapped with each other. A bag making and filling machine for bag making and filling products,
An input pipe arranged in a vertical direction to input a product;
A bag making guide for making the outer bag film and the inner bag film into a cylindrical shape;
Of the outer bag film and the inner bag film formed in the cylindrical shape, at least a central portion in the width direction of the inner bag film is folded inward along the longitudinal direction of the film, and at least 2 in the inner bag film. A folding guide that forms two peaks,
A cutting part that forms both ends of the inner bag film into a shape that forms the plug of the inner bag to form a plug forming part;
A bottom seal mechanism for heat-sealing at least two ridges formed on the inner bag film by the folding guide along the longitudinal direction of the film;
A top seal mechanism for heat-sealing both end portions of each of the outer bag film and the inner bag film that are superposed on each other along the longitudinal direction of the film;
The side of the outer bag film and the inner bag film that are arranged below the charging pipe and heat-sealed by the bottom seal mechanism and the top seal mechanism are laterally heat-sealed, and the heat-sealed portion is cut. A sealing mechanism;
A bag making filling and packaging machine. The top seal mechanism is
Both end portions of the inner bag film having the cut portion and forming the plug forming portions at both end portions of the inner bag film formed into a cylindrical shape and having the plug forming portions formed therein An inner bag top seal mechanism for heat sealing,
An outer bag top seal mechanism for heat-sealing both end portions of the outer bag film formed into a cylindrical shape;
The bag making filling and packaging machine according to claim 1, wherein the bag making and packaging machine is provided separately. The cutting part is disposed at a position where the plug forming part can be formed on both side ends of the inner bag film before being sent to the bag making guide,
The top seal mechanism includes an inner bag top seal mechanism that thermally seals both end portions of the inner bag film on which the cap forming portion is formed, and both end portions of the outer bag film that are formed into a cylindrical shape. The bag making filling and packaging machine according to claim 1, which is integrally provided with an outer bag top seal mechanism for heat-sealing the bag. The width of the outer bag film is wider than the width of the inner bag film, the inner bag film is sent downward in a state aligned with the center of the width direction of the outer bag film,
The folding guide is formed by folding the outer bag film and the inner bag film, which are formed into a cylindrical shape by the bag making guide, into the inner side along the longitudinal direction of the film and overlapping the film. The bag making filling and packaging machine according to any one of claims 1 to 3, wherein the two crests are formed in an outer bag film and the inner bag film. The outer bag film is composed of two long sheet-like films each having a width that covers at least a portion that forms the plug formed at both ends of the inner bag film by the cutting portion, The film is aligned with the inner bag film so as to cover the plug forming portion formed at one side end of the inner bag film, and the other film is placed on the other side of the inner bag film. In a state where the inner bag film is aligned with the inner bag film so as to cover the plug forming portion formed on the side end, the inner bag film and the outer bag film are sent downward,
The folding guide folds the widthwise center portion of the inner bag film of the outer bag film and the inner bag film, which are formed into a cylindrical shape by the bag making guide, inward along the longitudinal direction of the film. The bag making filling and packaging machine according to claim 3, wherein the two crests are formed only on the inner bag film.   A sterilization section for sterilizing the outer bag film and the inner bag film by immersing the inner bag film and the outer bag film before being sent to the bag making guide in a sterilizing solution, the outer bag film and the inner bag 6. The film sterilization apparatus according to claim 1, further comprising: a drying unit that dries the sterilizing liquid attached to the film and sends the outer bag film and the inner bag film to the bag making guide. The bag making filling and packaging machine described in 1. A long sheet-shaped inner bag film that forms an inner bag filled with a product and a long sheet-shaped outer bag film that covers at least the spigot formed on the inner bag in a state of being stacked on each other Making a bag and sending it downward,
At least a central portion in the width direction of the inner bag film formed into a cylindrical shape is folded inward along the longitudinal direction of the film, and two peaks formed by the folding are heated along the longitudinal direction of the film. Sealing, and
Cutting both side ends of the inner bag film into a shape that forms the plug of the inner bag, and forming a plug forming portion on both side ends of the inner bag film;
Heat sealing along the longitudinal direction of the film in a state where both end portions of the inner bag film formed into a tubular shape are overlapped;
Heat sealing along the longitudinal direction of the film in a state in which both side ends of the outer bag film formed into a cylindrical shape are overlapped;
Introducing the product into the inner bag film in which the both side ends and the tip portions of the two peaks are heat-sealed;
A step of heat-sealing the inner bag film into which the product is charged and the outer bag film covering at least the plug of the inner bag film in a lateral direction, and cutting the heat-sealed portion;
A bag making filling packaging method.   Along the longitudinal direction of the film, the step of forming the plug forming portions on both side ends of the inner bag film and the both side ends of the inner bag film formed into a tubular shape are overlapped. The bag making filling and packaging method according to claim 7, wherein the heat sealing step is performed simultaneously. The step of forming the plug forming portions at both end portions of the inner bag film is performed before folding at least the center portion in the width direction of the inner bag film formed in a cylindrical shape inward along the longitudinal direction of the film. To
Heat sealing along the longitudinal direction of the film in a state in which both end portions of the inner bag film formed in the cylindrical shape are overlapped, and both sides of the outer bag film formed in the cylindrical shape The bag making filling and packaging method according to claim 7, wherein the step of heat-sealing along the longitudinal direction of the film in a state where the end portions are overlapped is performed simultaneously.   The width of the outer bag film is wider than the width of the inner bag film, and the inner bag film and the outer bag film are positioned downward with the inner bag film aligned with the center of the outer bag film in the width direction. The bag making filling and packaging method according to any one of claims 7 to 9, further comprising:   The outer bag film is composed of two long sheet-like films each having a width that covers at least a portion that forms the plug formed on both side ends of the inner bag film, The inner bag film is aligned with the inner bag film so as to cover the plug forming portion formed on one side end of the inner bag film, and the other film is placed on the other side end of the inner bag film. The manufacturing method according to claim 9, comprising sending the inner bag film and the outer bag film downward while being aligned with the inner bag film so as to cover the formed plug formation portion. Bag filling packaging method.   The bag making filling and packaging method according to any one of claims 7 to 11, further comprising a step of sterilizing the inner bag film and the outer bag film before being sent to the bag making guide.

Images