JP7455351B2 - Film supply system and film supply method - Google Patents

Description

The present invention relates to a film supply system and a film supply method for supplying packaging film to a packaging machine.

FIG. 11 is a top view (plan view) illustrating a conventional technique. The packaging machine 110 generally includes a packaging machine main body 111 that manufactures a package by wrapping an article in a packaging film 115, sealing a predetermined position of the packaging film 115, and cutting the packaging film 115. The basic configuration includes a film supply device 112 that continuously supplies film 115.

The film supply device 112 is disposed near the packaging machine main body 111 to which the packaging film 115 is supplied, and rotatably supports a raw fabric roll 116 wound with a strip-shaped packaging film 115 (see, for example, Patent Document 1). ).

In the film supply device 112, the process of removing the original fabric roll 116 from the support part after it has been supplied to the packaging machine main body 111, and the process of installing a new original fabric roll 116 in the empty support part after removal are performed. It needs to be done regularly. Generally, this type of work for attaching and detaching the raw fabric roll 116 is performed manually by the worker WK, but the raw fabric roll 116 is heavy and the process is complicated. Although it varies depending on the winding diameter of the original fabric roll 116 and the operating speed of the packaging machine 110, the original fabric roll 116 may be replaced at a rate of once every 30 minutes to one hour.

In particular, as shown in FIG. 11, when a plurality of packaging machines 110 are operating on one floor, the film supply device 112 of each packaging machine 110 needs to be replaced.

Further, in order to reduce the labor involved in replacing the original roll 116, packaging machines have been developed that can automatically replace the original roll 116 and automatically connect old and new films.

Japanese Patent Application Publication No. 2018-111515

Replacing the original roll 116 is complicated even in one packaging machine 110, and replacement is frequent, but when multiple packaging machines 110 are movable as shown in FIG. Since the replacement is done at the same time, replacement work will occur more frequently. That is, in the past, it was necessary to arrange a plurality of workers WK according to the number of packaging machines 110 (for example, in one-to-one correspondence), so there was a problem that the number of workers could not be reduced.

Similarly, in the case of an apparatus in which the original rolls 116 are automatically replaced by a robot, it is necessary to arrange a robot in each of the plurality of packaging machines 110. For this reason, it is necessary to ensure sufficient space between each packaging machine 110, and there is also the problem of rising costs.

Furthermore, whether the original roll 116 is replaced manually or by a robot, the original roll 116 needs to be transported to the vicinity of the film supply device 112 of each packaging machine 110, and depending on the layout of the packaging machines 110, it can be difficult to ensure a transport path.

The present invention has been made in view of the above-mentioned problems, and even in a configuration in which packaging films are individually supplied to multiple packaging machines, it is possible to reduce the number of personnel required to replace the original fabric rolls, and to replace the original fabric rolls. It is an object of the present invention to provide a film feeding device and a film feeding method that do not require conducting wires for transportation or securing a space for arranging a robot for replacement work.

The present invention is a film supply system that supplies packaging films to a plurality of packaging machine bodies, and includes a first packaging machine body, a second packaging machine body, and a first packaging machine body that supplies packaging films to a plurality of packaging machine bodies. A first film supply device that supplies a film, and a second film supply device that supplies a second packaging film to the second packaging machine main body, and is detachable from the end of the packaging film. It has a band-shaped dummy member, the dummy member is a member having higher rigidity than the packaging film, and the first packaging machine main body and the second packaging machine main body are arranged in a first area, and the The present invention relates to a film supply system characterized in that a first film supply device and the second film supply device are arranged in a second region provided outside the first region.

The present invention also provides a film supply method for supplying packaging films to a plurality of packaging machine bodies, in which a first packaging machine body is disposed in a first area, and a first packaging machine body is disposed in a second area. a step of supplying a first packaging film from a first film supply device, and a second packaging film disposed in the second region with respect to a second packaging machine body disposed in the first region; a step of supplying a second packaging film from a supply device; a step of joining a strip-shaped dummy member made of a member that is removably attached to an end of the packaging film and has higher rigidity than the packaging film; and a step of joining the second packaging film to an end of the packaging film. and a step of conveying the dummy member on a conveyance path, and the second area is an area provided outside the first area. It is something.

According to the present invention, even if the packaging film is individually supplied to a plurality of packaging machines, it is possible to reduce the number of personnel during the work of replacing the raw rolls, and to improve the flow line for transporting the raw rolls or for replacing the rolls. It is possible to provide a film supply device and a film supply method that do not require securing a space for arranging a working robot.

1 is a plan view showing an outline of a film supply system according to an embodiment of the present invention. 1 is a schematic front view showing an example of a packaging machine according to an embodiment of the present invention. 1 is a diagram illustrating an overview of a film supply system according to an embodiment of the present invention. 1 is a diagram showing a part of a film supply system according to an embodiment of the present invention. It is a front schematic diagram explaining operation|movement of the connection means based on embodiment of this invention. FIG. 1 is a schematic diagram showing an example of a film supply method according to an embodiment of the present invention. FIG. 1 is a schematic diagram showing an example of a film supply method according to an embodiment of the present invention. FIG. 1 is a schematic diagram showing an example of a film supply method according to an embodiment of the present invention. 1 is a schematic diagram showing an example of a film supply system according to an embodiment of the present invention. 1 is a schematic diagram showing an example of a film supply system according to an embodiment of the present invention. FIG. 2 is a top view showing a conventional technique.

<Film supply system>
Hereinafter, the configuration of a film supply system 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a top view schematically showing a film supply system 1. As shown in FIG. FIG. 2 is a diagram schematically showing one packaging machine 10, and is a front view of a pillow packaging machine as an example. In addition, in this figure and each subsequent figure, some structures are omitted as appropriate to simplify the drawings. In this figure and the subsequent figures, the sizes, shapes, thicknesses, etc. of members are appropriately exaggerated.

For convenience of explanation, the various directions in the packaging machine main body 11 are defined as the direction in which the packaging film 15 moves from upstream to downstream as the transport direction T, and the direction perpendicular to the transport direction T in the horizontal plane as the transport width direction W. , the direction (vertical direction) perpendicular to the transport direction T and the transport width direction W is defined as the transport height direction H.

Referring to FIG. 1, a film supply system 1 of the present embodiment is a system for supplying packaging films 15 in a plurality of packaging machines 10 (10A, 10B, . . . ). Each of the plurality of packaging machines 10 has a packaging machine main body 11 (11A, 11B...) and a film supply device 12 (12A, 12B...) that supplies packaging film 15 thereto. Here, a horizontal reverse pillow packaging machine is illustrated as an example of the packaging machine 10, but the present invention is not limited to this as long as the packaging machine 10 is capable of supplying a strip-shaped packaging film. Furthermore, although a case will be described here in which there are four packaging machines 10 as a specific example, the number of packaging machines 10 is not limited to this as long as it is plural. Note that in the figure, the upper side is the upstream side, and the lower side is the downstream side.

The film supply system 1 of the present embodiment includes a plurality of (for example, four) packaging machine bodies 11 (a first packaging machine body 11A, a second packaging machine body 11B, a third packaging machine body 11C, and a fourth packaging machine body 11C). 11D), which supplies the packaging films 15 (15A, 15B, 15C, 15D) to the first film supply device 12A, the second film supply device 12B, the third film supply device 12C, and the fourth film supply device 12C. It has a film supply device 12D.

Here, the packaging films 15 (15A to 15D) may be of different types (size (width), thickness, etc.), or at least some of them may be of the same type. That is, the plurality of packaging machines 10 may all package different articles, or at least some of them may package the same article.

Specifically, the first packaging machine 10A includes a first packaging machine main body 11A, a first film supply device 12A that supplies a first packaging film 15A thereto, a bag making device 25A, a center seal unit 27A, and a top It has a seal unit 30A and the like.

The second packaging machine 10B includes a second packaging machine main body 11B, a second film supply device 12B that supplies a second packaging film 15B thereto, a bag making device 25B, a center seal unit 27B, a top seal unit 30B, etc. has.

The third packaging machine 10C includes a third packaging machine main body 11C, a third film supply device 12C that supplies a third packaging film 15C thereto, a bag making device 25C, a center seal unit 27C, a top seal unit 30C, etc. has.

The fourth packaging machine 10D includes a fourth packaging machine main body 11D, a fourth film supply device 12D that supplies a fourth packaging film 15D thereto, a bag making device 25D, a center seal unit 27D, a top seal unit 30D, etc. has.

The four packaging machine bodies 11 (first packaging machine body 11A, second packaging machine body 11B, third packaging machine body 11C, and fourth packaging machine body 11D) have, for example, a conveyance direction T aligned with the first region R1. They are arranged side by side.

On the other hand, the four film supply devices 12 (first film supply device 12A, second film supply device 12B, third film supply device 12C, and fourth film supply device 12D) are located in an area different from the first area R1. The second region R2 is located outside the first region R1. The second region R2 is, for example, a region secured at a predetermined distance L from the first region R1 in a plan view (top view) shown in the figure. Specifically, for example, the first region R1 is a region disposed approximately at the center of the floor, and the second region R2 is a region disposed along a wall surface or the like. The distance L between the first region R1 and the second region R2 at the closest point is, for example, the distance L between the first region R1 and the second region R2 when at least one worker is transporting at least one raw fabric roll (replacement raw fabric roll) 17 and This is a sufficient distance to replace the counter rolls 16 and 17.

Here, as an example, a case is shown in which a film supply unit 12U that collectively supports four film supply devices 12 is provided in the second region R2. For example, the film supply unit 12U may be configured to be movable to any position. The configuration of the film supply unit 12U will be described later, but for example, it has two storage sections, upper and lower, in which the first film supply device 12A and the second film supply device 12B are arranged side by side, for example, and the lower storage section. For example, a third film supply device 12C and a fourth film supply device 12D are arranged side by side. In addition, each of the four film supply devices 12 supplies the packaging film 15 to each packaging machine main body 11 (currently being supplied), as well as the raw rolls 16 (16A, 16B, 16C, 16D). Holds original fabric rolls 17 (17A, 17B, 17C, 17D) (for standby, spare) to be replaced when 16 is completed.

Note that the raw rolls 16 and 17 are not distinguished (especially when packaging films 15 of the same standard are supplied continuously), but for convenience of explanation, the packaging film 15 being supplied is wound here. The original fabric rolls 16 that are currently in use are referred to as supply original fabric rolls 16 (16A, 16B, 16C, 16D), and the original fabric rolls that are on standby are referred to as replacement original fabric rolls 17 (17A, 17B, 17C, 17D).

The first packaging film 15A pulled out from one of the original fabric rolls (supplying original fabric roll) 16A of the first film supply device 12A is transported along the packaging film 15 conveyance path (hereinafter referred to as the The film is transported along one film transport route FRA) and supplied to the first packaging machine main body 11A.

The second packaging film 15B pulled out from one of the raw rolls (supply roll) 16B of the second film supply device 12B is transported along the packaging film 15 transport path (hereinafter referred to as a The film is transported on the second film transport path (FRB) and supplied to the second packaging machine main body 11B.

The third packaging film 15C pulled out from one of the raw rolls (supply raw roll) 16C of the third film supply device 12C is transported along the packaging film 15 transport path (hereinafter referred to as the The film is transported on the third film transport path (FRC) and supplied to the third packaging machine main body 11C.

The fourth packaging film 15D pulled out from one of the raw rolls (supply raw roll) 16D of the fourth film supply device 12D is transported along the packaging film 15 transport path (hereinafter referred to as the The film is transported on the fourth film transport path (FRD) and supplied to the fourth packaging machine main body 11D.

Each of the film transport means (first film transport means 40A, The second film conveyance means 40B, the third film conveyance means 40C, and the fourth film conveyance means 40D) are each, for example, a belt conveyor and rollers provided at appropriate positions. Thereby, the transport resistance of each packaging film 15 during transport can be reduced, and unnecessary sagging, wrinkles, etc. can be prevented. Note that each packaging film 15 only needs to be fed to each packaging machine main body 11 at least by being wound around rollers, and there is no need to provide a belt conveyor as each film conveying means 40 (40A to 40D).

Further, each film transport means 40 is arranged at an appropriate position (layout) such that the film transport paths FR do not interfere with each other.

The configuration of the packaging machine 10 will be described with reference to FIG. 2. This figure is a schematic front view showing the entire packaging machine 10. Here, it is assumed that all four packaging machines 10 have the same configuration, and will be described as one packaging machine 10 without distinguishing them from each other. Note that the four packaging machines 10 do not have to have the same configuration.

On the upstream side of the packaging machine main body 11 (on the left side in the figure), a packaged object conveying and supplying device 14 that supplies the packaged objects 13 to the packaging machine main body 11 at predetermined intervals is arranged. Note that the packaged object conveyance and supply device 14 may be included in the packaging machine 10 or may be not included in the packaging machine 10.

The film supply device 12 is disposed in the second region R2, and is connected to a supply roll 16 in which the packaging film 15 is wound up into a roller shape by a drive motor (not shown) (a speed controllable motor such as a servo motor). The raw material roll 16 is supplied to the packaging machine main body 11 at a constant speed while appropriately controlling the rotational speed of the supply material roll 16. The packaging film 15 is transported by a film transport means 40 that constitutes a film transport path FR. The film conveying means 40 is, for example, rollers 9 and a belt conveyor (not shown). Specifically, various rollers 9 (only two are representatively shown in the figure) and a belt conveyor (not shown) are arranged at predetermined positions from the supply roll 16 to the packaging machine main body 11, The packaging film 15 sent out from the supply roll 16 is passed around the rollers 9 and guided to the packaging machine main body 11 through a predetermined film transport path FR. In this embodiment, it is not always necessary to link the drive motor to the supply roll 16, and a feed roller may be provided on the film transport path FR of the packaging film 15 to pull it out.

The packaging machine main body 11 includes a bag making device 25 that makes bags of a cylindrical film (hereinafter referred to as a cylindrical film 24) by polymerizing both side edges of a continuously supplied strip-shaped packaging film 15; A conveying means (for example, a belt conveyor) 26 disposed downstream of the bag making machine 25 and conveying the cylindrical film 24, a center seal unit (center seal device) 27 disposed above the belt conveyor 26, and a belt. A top seal unit (top seal device) 30 disposed downstream of the conveyor 26 , a carry-out conveyor 28 disposed downstream of the top seal unit 30 , and an area above the belt conveyor 26 and immediately before the top seal unit 30 A restraining belt 29 is provided. Note that the "top seal" of the top seal unit 30 may also be referred to as an "end seal."

The packaged object conveyance/supply device 14 includes, for example, a plate-shaped conveyance path 22 and a conveyor device 18 disposed above the conveyance path 22. The conveyor device 18 includes, for example, sprockets 19 arranged front and rear, an endless chain 20 stretched around the plurality of sprockets 19, and a plurality of pushing fingers 21 attached to the endless chain 20 at predetermined pitches. configured. As a result, when the pushing finger 21 hits the rear surface of the object to be packaged 13, the object to be packaged 13 also moves forward on the conveyance path 22 as the pushing finger 21 moves.

The objects to be packaged 13 that are sequentially supplied from the object transport and supply device 14 to the packaging machine main body 11 are inserted into the bag making device 25 . Thereby, the articles 13 to be packaged supplied to the bag making device 25 are arranged within the tubular film 24 at predetermined intervals. Moreover, since the object 13 to be packaged is enclosed within the cylindrical film 24 in this manner, the belt conveyor 26 conveys the cylindrical film 24 containing the object 13 to be packaged therein.

The bag-making machine 25 passes the packaging film 15 continuously supplied from the film supply device 12, brings the both side edges 24a of the packaging film 15 into contact (polymerization), and forms bags into the cylindrical film 24. It is something to do. The bag making device 25 in this example is open at the upper side in the transport height direction H, and is set so that both side edge portions 24a of the packaging film 15 are located at the upper side.

The center seal unit 27 heat-seals the polymerized side edges 24a of the cylindrical film 24 by heating them while sandwiching them from both sides. The illustrated example includes a bar-shaped sealer (bar sealer) 31 that preheats both side edges 24a, and a pair of left and right pressure rollers 32 that heat-seal while applying a predetermined pressure. . Furthermore, the center seal unit 27 includes a pair of left and right pinch rollers 33 on the upstream side of the bar sealer 31. The pinch rollers 33 come into contact with each other through the bag making machine 25, pinch the opposite side edges 24a of the cylindrical film 24 with a predetermined pressure, and rotate in synchronization, so that the both side edges 24a of the cylindrical film 24 and the tube are A conveying force is applied to the shaped film 24. Further, the pressure roller 32 also has a function as a pinch roller. In other words, since the pressure roller 32 rotates in synchronization with the pinch roller 33 while sandwiching both side edges 24a of the cylindrical film 24 with a predetermined pressure, the cylindrical film 24 to give conveying force.

The top seal unit 30 seals and cuts the cylindrical film 24 in a direction intersecting the transport direction T (progressing direction), that is, a transport width direction W (crossing direction). The top seal unit 30 is, for example, a so-called box motion type unit, in which a pair of top sealers 30a and 30b arranged one above the other with a cylindrical film 24 in between maintains a state in which their sealing surfaces face each other and performs a predetermined position. The top seal (end seal, lateral seal) and cut are performed in the transport width direction W at pitches corresponding to the length of the article. By passing through the top seal unit 30, the leading portion of the cylindrical film 24 is separated from the trailing portion, and a package 35 is manufactured. Note that the top seal unit 30 may be of a rotary type.

Moreover, the packaging machine 10 of this embodiment is provided with a winding means 50 near the packaging machine main body 11, specifically, on the upstream side of the bag making device 25. The winding means 50 has, for example, a winding reel 51 and a pressing means (such as a roller) 52, and is a means that enables the dummy member 60 that is detachably attached to the packaging film 15 to be pulled out and wound up. Although not shown, one end of the dummy member 60 is fixed to the take-up reel 51, and by being wound up on the take-up reel 51, the other end approaches the packaging machine main body 11, and the dummy member 60 is moved to the take-up reel. By being pulled out from 51, the other end approaches the film supply device 12. The pressing means 52 is configured to be able to move forward and backward relative to the dummy member 60, for example, and is a means for pressing the dummy member 60 when bonded to the packaging film 15.

Note that the winding means 50 can be used as long as the dummy member 60 and the packaging film 15 can be temporarily joined (peelably joined) and the dummy member 60 can be pulled out and rolled up. Not exclusively.

The dummy member 60 is a band-shaped member made of a material with higher rigidity than the packaging film 15, and is used, for example, during maintenance of the packaging machine 10 (packaging machine main body 11), or when using different standards (size, etc.). ) is a member that can be temporarily joined to or peeled off from the end of the packaging film 15 when changing the packaging film 15. Specifically, it is preferable that the material has less bending and slack than the packaging film 15 of the same length, and can be used repeatedly.

The length of the dummy member 60 in the longitudinal direction (film transport direction FR) is determined from at least the upstream end of the bag making device 25 (or the winding means 50) to the original fabric roll 16 held by the corresponding film supply device 12, 17 (within the second region R2).

In this embodiment, the distances from the upstream end of each packaging machine main body 11 (bag making device 25) to the corresponding film supply devices 12 are different, but the dummy member 60 is provided for each packaging machine 10. It has the above-mentioned appropriate length.

As shown in FIG. 1, the four packaging machine bodies 11 are arranged in the first region R1. Moreover, it is arranged in the first region R1 of the winding means 50 provided in each of the packaging machine main bodies 11. On the other hand, the four film supply devices 12 that supply packaging films 15 to these, respectively, are collectively arranged in the second region R2. Note that at least some of the packaging machine main bodies 11 do not need to have the winding means 50.

With reference to FIG. 3, the film supply unit 12U and the film transport path FR (FRA, FRB, FRC, FRD) will be described. This figure is a schematic diagram of the film supply unit 12U and the film transport path FR. In the figure, the film supply unit 12U is a front view seen from the first region R1 side in FIG. 1 as an example. On the other hand, the film transport route FR is a conceptual diagram and does not show the actual configuration.

The film supply unit 12U has, for example, two upper and lower accommodating sections, in which, for example, a first film supply device 12A and a second film supply device 12B are arranged side by side in the upper accommodating section, and in a lower accommodating section, for example, a third film supply device 12B is arranged side by side. The film supply device 12C and the fourth film supply device 12D are arranged side by side. Moreover, each of the four film supply devices 12 holds a replacement material roll 17 (17A, 17B, 17C, 17D) in addition to the supply material roll 16 (16A, 16B, 16C, 16D).

The film supply unit 12U of this example integrates, for example, a first film supply device 12A, a second film supply device 12B, a third film supply device 12C, and a fourth film supply device 12D, and supports them integrally, for example.

The first packaging film 15A pulled out from the supply roll 16A of the first film supply device 12A is supplied to the first packaging machine main body 11A via the first film transport path FRA.

The second packaging film 15B pulled out from the supply roll 16B of the second film supply device 12B is supplied to the second packaging machine main body 11B via the second film transport path FRB.

The third packaging film 15C pulled out from the supply roll 16C of the third film supply device 12C is supplied to the third packaging machine main body 11C via the third film transport path FRC.

The fourth packaging film 15D pulled out from the supply roll 16D of the fourth film supply device 12D is supplied to the fourth packaging machine main body 11D via the fourth film transport path FRD.

As already mentioned, the vertical heights and horizontal positions of the film conveying means 40 (40A to 40D) are set appropriately so that the packaging films 15 (15A to 15D) do not interfere with each other. .

Furthermore, meandering adjustment means 63 and tension adjustment means 65 are provided on each film transport path FR from the second region R2 to the first region R1. Specifically, a meandering adjustment means 63A and a tension adjustment means 65A are provided on the first film transport path FRA from the film supply unit 12U of the first packaging film 15A to the first packaging machine main body 11A, and the second packaging film 15B Meandering adjustment means 63B and tension adjustment means 65B are provided on the second film transport path FRB from the film supply unit 12U to the second packaging machine main body 11B. Further, a meandering adjustment means 63C and a tension adjustment means 65C are provided on the third film transport path FRC from the film supply unit 12U of the third packaging film 15C to the third packaging machine main body 11C, and the film of the fourth packaging film 15D is Meandering adjustment means 63D and tension adjustment means 65D are provided on the fourth film transport path FRD from the supply unit 12U to the fourth packaging machine main body 11D. Details of the meandering adjustment means 63 and the tension adjustment means 65 will be described later.

In this example, the first film supply device 12A is used for supplying the supply roll 16A to be supplied to the first packaging machine main body 11A, and for replacing the supply roll 16A, which is on standby when the supply roll 16 is used up or when changing setups. It is configured to be able to hold the original fabric roll 17A. Specifically, the film supply device 12A has, for example, a support shaft 121 that rotatably supports the supply roll 16A, and the film supply device 12A has a support shaft 121 that rotatably supports the supply roll 16A, or the first package fed out from the supply roll 16A or the supply roll 16A. It has a function of applying a driving force to the film 15A, transporting the film at a predetermined speed, and supplying the film to the first packaging machine main body 11A.

The replacement original fabric roll 17A side has, for example, the same configuration as the supply original fabric roll 16A. That is, it has a support shaft 121 that rotatably supports the replacement material roll 17A, and provides a driving force to the replacement material roll 17A or the first packaging film 15A that is unwound from the replacement material roll 17A. It has a function of transporting the film at a predetermined speed and supplying it to the first packaging machine main body 11A.

Here, as an example, a configuration is assumed in which the supply roll 16A on the right side of the drawing and the replacement roll 17A on the left side are alternately replaced. That is, when the remaining amount of the supply roll 16A supported on the right side falls below a predetermined amount, the replacement roll 16A whose terminal end is automatically supported on the left side by a known film joining means (not shown), etc. It is joined to the starting end of the roll 17A. (Or they are joined manually by worker WK). Thereafter, the left replacement roll 17A starts supplying the first packaging film 15A as a new supply roll 16A. Then, the right support shaft 121 is released (by taking out the paper tube of the used material roll 16, etc.), and the newly brought in replacement material roll 17A is attached to the released right support shaft 121. It is attached.

Further, when the remaining amount of the supply roll 16A on the right side falls below a predetermined amount, the starting end of the replacement roll 17A whose terminal end is automatically supported on the left side by a known film joining means (not shown) or the like. It is joined to the part. (Or they are joined manually by worker WK). Thereafter, the left replacement roll 17A starts supplying the first packaging film 15A as a new supply roll 16A. Then, the left support shaft 121 is released (by taking out the paper core of the used material roll 16, etc.), and the newly brought in replacement material roll 17A is attached to the released left support shaft 121. It is attached. A new replacement original roll 17A is transported from a predetermined storage location and attached to the released support shaft 121 by the worker WK (or robot, hereinafter the same).

Thereafter, similarly, the illustrated left and right raw fabric rolls are alternately replaced with the supply raw fabric roll 16A and the replacement raw fabric roll 17A. In addition, in the description of this embodiment, the packaging film 15 supplied from the first film supply device 12A is referred to as the first packaging film 15A, regardless of which of the left and right rolls becomes the supply roll 16A.

Alternatively, the configuration may be such that the illustrated left and right rolls are fixedly used as the supply roll 16A and the replacement roll 17A. For example, the supply roll 16A may always be supported by the support shaft 121 on the right side in the figure, and the replacement roll 17A may be supported by the support shaft 121 on the left side in the figure. In this case, the support shaft 121 of the replacement original roll 17A does not need to rotate. In this configuration, when the supply roll 16A is used up, the worker WK releases the right support shaft 121 (by taking out the paper tube, etc.) and replaces it with the replacement roll 17A. When a new fabric roll (new replacement fabric roll 17A) is transported from the storage location, the worker WK attaches it to the free left support shaft 121.

For example, the two raw fabric rolls 16A and 17A are cylindrical raw fabric rolls in which the shafts (support shafts 121) of the two fabric rolls 16A and 17A extend in the depth direction when viewed from the worker WK, and both are arranged side by side on the left and right. The surfaces 16A and 17A (circular surfaces) are arranged to face the worker WK. With this arrangement, the worker WK can attach and detach the two fabric rolls 16A and 17A to and from the support shaft 121 using the same operation (movement).

However, the configuration is not limited to this example, and the shafts (support shafts 121) of the two original fabric rolls 16A and 17A may be arranged in vertical alignment. Also, make sure that the axes (support shafts 121) of the two fabric rolls 16A and 17A are on the same axis when viewed from the worker WK, that is, the fabric rolls 16A and 17A are on the same axis at the front and rear sides when viewed from the worker WK. It may be arranged side by side. Further, the original fabric rolls 16A and 17A may have a configuration in which the relative position with respect to the worker WK changes, for example, by sliding or rotating the support shaft 121.

The second film supply device 12B has, for example, the same configuration as the first film supply device 12A. That is, in this example, it has a support shaft 121 that rotatably supports the supply roll 16B, and is driven with respect to the supply roll 16B or the second packaging film 15B fed out from the supply roll 16B. It has a function of applying force, conveying the film at a predetermined speed, and supplying it to the second packaging machine main body 11B. It also has a support shaft 121 that rotatably supports the replacement original fabric roll 17B, and provides a driving force to the replacement original fabric roll 17B or the second packaging film 15B that is unwound from the replacement original fabric roll 17B. It has a function of conveying the film at a predetermined speed and supplying it to the second packaging machine main body 11B. The arrangement of the two original fabric rolls 16B, 17B and the mode of exchange are also the same as in the first film supply device 12A, so the explanation will be omitted.

The third film supply device 12C also has, for example, the same configuration as the first film supply device 12A. That is, this example has a support shaft 121 that rotatably supports the supply roll 16C and the replacement roll 17C, and the support shaft 121 rotatably supports the supply roll 16C and the replacement roll 17C, and the support shaft 121 rotatably supports the supply roll 16C and the replacement roll 17C. It has a function of applying driving force to the third packaging film 15C, transporting the film at a predetermined speed, and supplying the film to the third packaging machine main body 11C. The arrangement of the two original fabric rolls 16C, 17C and the manner of exchange are also the same as in the first film supply device 12A, so the explanation will be omitted.

The fourth film supply device 12D also has the same configuration as the first film supply device 12A, for example. That is, this example has a support shaft 121 that rotatably supports the supply roll 16D and the replacement roll 17D, and the support shaft 121 rotatably supports the supply roll 16D and the replacement roll 17D. It has a function of applying driving force to the fourth packaging film 15D, transporting the film at a predetermined speed, and supplying the film to the fourth packaging machine main body 11D. The arrangement of the two original fabric rolls 16D, 17D and the mode of exchange are also the same as in the first film supply device 12A, so the explanation will be omitted.

Although the case where the four film supply devices 12A to 12D have the same configuration has been exemplified above, each or at least a portion thereof may have a configuration in which the arrangement of the original fabric rolls 16, 17, etc. are different.

Furthermore, as already mentioned, the four film supply devices 12 (12A to 12D) only need to be concentrated in the second region R2, and do not need to be integrally supported by the film supply unit 12U. .

The meandering adjustment means 63 and the tension adjustment means 65 will be explained with reference to FIG. 4A is a perspective view showing an outline of the meandering adjustment means 63, and FIG. 1B is a top view thereof. FIG. 6C is a front view showing an outline of the tension adjusting means 65.

As shown in FIGS. 1A and 2B, the meandering adjusting means 63 has a known configuration capable of adjusting the meandering of the packaging film 15, and includes, for example, a guide provided in the width direction of the packaging film 15. It includes a roller 631, an adjustment turn bar 632, a drive mechanism (not shown) for the adjustment turn bar 632, a detection means (not shown), and the like. The adjusting turn bar 632 is configured to be able to swing around one end so that its axis is inclined with respect to the width direction of the packaging film 15, as shown in FIG.

The detection means (for example, a feedback sensor) of the meandering adjustment means 63 monitors the meandering of the packaging film 15 at any time as a deviation from the target value in the transport width direction W, and when a deviation is detected, it adjusts the meandering according to the amount of deviation. The detection signal is output to the drive mechanism of the adjustment turn bar 632. The drive mechanism corrects the meandering of the packaging film 15 by appropriately swinging the adjustment turn bar 632 as shown in FIG. Note that the structure is not limited to the above structure as long as the meandering of the long packaging film 15 can be adjusted.

As shown in FIG. 2C, the tension adjustment means 65 is, for example, a known dancer roller device that adjusts the tension of the packaging film 15 by applying a load. The dancer roller device 65 includes, for example, a dancer roller 652 rotatably supported by a vertically movable shaft 651, and a guide roller 653 immovably fixed to support means (frame, wall, etc.). By wrapping the packaging film 15 around these and moving the shaft 651 in the vertical direction as appropriate, the path length of the packaging film 15 is changed and the tension applied to the packaging film 15 is adjusted. For example, when each packaging machine main body 11 has the same configuration, the tension adjusting means 65 equally adjusts the tension on the downstream side of the film transport path FR, that is, before (just before) being supplied to each packaging machine main body 11. In addition, if the packaging machine main body 11 has a different configuration, or if the type or standard of the article to be packaged or the packaging film 15 is different, the tension before (just before) being supplied to each packaging machine main body 11 may be adjusted depending on the respective conditions. adjust. Note that the structure is not limited to the above structure as long as the tension applied to the long packaging film 15 can be adjusted. In addition, the packaging film 15 is stretched between a plurality of movable rollers in a part of the tension adjustment means 65, and the packaging film 15 is stored between these rollers by expanding and contracting the distance between the rollers, and the tension is increased by feeding out the packaging film 15. It may also include an adjusting mechanism.

Further, in the example of FIG. 3, the meandering adjustment means 63 is arranged upstream of the tension adjustment means 65, but either of them may be arranged upstream. Further, a plurality of meandering adjusting means 63 may be provided on one film transport path FR. Further, a plurality of tension adjustment means 65 may be provided on one film transport path FR.

In this way, the film supply system 1 of the present embodiment has a plurality of film supply devices 12 that respectively supply packaging films 15 to a plurality of packaging machine bodies 11 disposed in the first region R1. They are arranged in a concentrated manner in a second region R2 outside R1.

As a result, even if a plurality of packaging machines 10 are arranged, and the work of replacing the original film rolls 16 and 17 is frequently required for each, the film supply device 112 can be placed near each of the packaging machine main bodies 111. Compared to the conventional configuration (FIG. 11) in which they are arranged (distributed), the number of workers WK involved in the replacement work can be reduced. In other words, the worker WK can perform the replacement work intensively at one location in the second region R2, so that the work can be done by one person, for example, and the number of personnel can be significantly reduced.

Further, a robot that automatically exchanges the supply roll 16 and the replacement roll 17 may be disposed in the film supply unit 12U. For example, if one robot is placed in front of the film supply unit 12U shown in FIG. becomes possible. Therefore, compared to a configuration in which a robot is placed in each of a plurality of packaging machine bodies 11, there is no need to secure space for the robot around the packaging machine body 11, and a plurality of packaging machine bodies 11 can be efficiently arranged. At the same time, it is possible to suppress the increase in costs.

Also, when transporting a new replacement roll 17, it is only necessary to secure a transport wire from the storage location to one film supply unit 12U, and depending on the layout of the packaging machine main body 11, securing the wire may be difficult. You can avoid problems such as:

Furthermore, since the meandering adjustment means 63 and the tension adjustment means 65 are provided on each conveyance path of the packaging film 15 from the film supply unit 12U to each packaging machine main body 11, even when conveying a long packaging film 15, the It becomes possible to supply the packaging machine main body 11 in an appropriate state.

<Film supply method>
Next, the film supply method of this embodiment will be explained with reference to FIGS. 1 and 3.

The first film supply device 12A arranged in the second region R2 supplies the first packaging film 15A from the supply roll 16A to the first packaging machine main body 11A arranged in the first region R1. do. Further, the tension and meandering of the first packaging film 15A are adjusted as appropriate on the film transport path FRA from the first film supply device 12A to the first packaging machine main body 11A.

Further, the second film supply device 12B disposed in the second region R2 supplies the second packaging film 15B from the supplying original fabric roll 16B to the second packaging machine main body 11B disposed in the first region R1. supply. Further, the tension and meandering of the second packaging film 15B are adjusted as appropriate on the film transport path FRB from the second film supply device 12B to the second packaging machine main body 11B.

The third film supply device 12C arranged in the second region R2 supplies the third packaging film 15C from the supply roll 16C to the third packaging machine main body 11C arranged in the first region R1. do. Further, the tension and meandering of the third packaging film 15C are adjusted as appropriate on the film transport path FRC from the third film supply device 12C to the third packaging machine main body 11C.

The fourth film supply device 12D located in the second region R2 supplies the fourth packaging film 15D from the supply roll 16D to the fourth packaging machine main body 11D located in the first region R1. do. Further, the tension and meandering of the fourth packaging film 15D are adjusted as appropriate on the film transport path FRD from the fourth film supply device 12D to the fourth packaging machine main body 11D.

The packaging films 15 (15A to 15D) are supplied by each film supply device 12 (12A to 12D) independently. That is, each film supply device 12 feeds the packaging film to the corresponding packaging machine main body 11 according to the timing of adjustment and cleaning of each packaging machine 10 (10A to 10D), replacement (replenishment) of packaging film 15, and setup change. 15 is supplied or stopped. Correspondingly, the work of attaching and replacing the original rolls 16 and 17 to each film supply device 12 by the worker WK also occurs at arbitrary timings.

In this embodiment, even if different packaging films 15 are supplied to a plurality of packaging machine bodies 11, since the plurality of film supply devices 12 are centrally arranged in the second region R2, the original The number of personnel involved in replacing and attaching the rolls 16 and 17 can be significantly reduced compared to the conventional method.

Furthermore, the dummy member 60 and the winding means 50 make it possible to improve the work efficiency of replacing the packaging film 15 and to prevent the packaging film 15 from being wasted. This will be explained below.

<Usage example 1 of dummy member>
FIG. 5 is a diagram schematically showing a case where the supply of the packaging film 15 is started to the packaging machine main body 11 to which no packaging film 15 has been supplied.

As already mentioned, the film supply system 1 includes a strip-shaped dummy member 60 that is removably attached to the end of the packaging film 15, and a dummy member 60 in the vicinity of each packaging machine body 11 (at least one packaging machine body 11). It has a winding means 50 which can be rolled up and pulled out.

Then, the dummy member 60 is joined to the end of the packaging film 15 and is pulled out from the winding means 50 or wound up, thereby transporting the dummy member 60 on the film transport path FR.

In this embodiment, in one packaging machine 10, the film supply device 12 and the packaging machine main body 11 are spaced apart from each other compared to the conventional configuration. For this reason, when starting the supply of the packaging film 15, it is necessary to route the packaging film 15 along the film transport path FR so that its starting end reaches the packaging machine main body 11. Although this work must be performed by the worker WK, the use of the dummy member 60 makes the work easier.

That is, the worker WK pulls out the upstream end T1 of the dummy member 60 as shown in FIG. ), that is, in the opposite direction to the supply direction of the packaging film 15, the dummy member 60 is routed along the film transport path FR, and is caused to reach the vicinity of the film supply device 12. The length of the dummy member 60 in the longitudinal direction is sufficient to reach the film supply device 12 from the winding means 50. Further, the dummy member 60 is made of a material that is flexible enough to be able to be stretched over, for example, the winding film transport path FR, but is more rigid than the packaging film 15 (has less bending, slack, or flexibility).

Then, the upstream end T1 of the dummy member 60 is joined to the starting end (downstream end) T2 of the packaging film 15 in the second region R2 (or its vicinity). This joining may be performed automatically using a joining device (not shown) or may be performed by the operator WK.

Thereafter, as shown in FIG. 5B, the dummy member 60 is wound up by the winding means 50. The dummy member 60 is transported along the film transport path FR from upstream (second region R2) to downstream (first region R1), and the packaging film is connected to the upstream end T1 of the dummy member 60. 15 is also pulled out and passed around rollers on the film transport path FR.

As shown in FIG. 2C, when the winding means 50 approximately winds up the dummy member 60, the starting end T2 of the packaging film 15 pulled out by the dummy member 60 reaches the upstream side of the packaging machine main body 11. Therefore, for example, a worker WK or the like peels off the dummy member 60 from the packaging film 15 and attaches the packaging film 15 to the packaging machine main body 11.

Since the dummy member 60 is made of a material with higher rigidity than the packaging film 15, it generally holds the starting end T2 of the flexible packaging film 15 and wraps it around a roller or the like on the film transport path FR. Rather than pulling the film out to the vicinity of the machine body 11, the work of routing the film on the film transport path FR can be handled more easily. Then, by winding up the dummy member 60 after joining the packaging film 15 in the second region R2, the dummy member 60 guides the packaging film 15, so that the packaging film 15 can be easily moved to the rollers on the film transport path FR. It can be passed over.

The packaging film 15 stretched in this manner requires fine adjustment of the position (meandering) and tension on the film transport path FR, but the tension is applied to a certain degree by the winding means 50 via the dummy member 60. Since the operator WK holds the starting end T2 of the packaging film 15 and stretches it while adjusting the tension and meandering, various adjustments can be made more easily.

Furthermore, the dummy member 60 can be used repeatedly, and even if the specifications of the packaging film 15 are changed, the dummy member 60 can be used in the same manner and is efficient.

<Usage example 2 of dummy parts>
FIG. 6 shows a case in which, for example, adjustment of the film transport path FR (for example, adjustment of the film transport means 40, meandering adjustment means 63, tension adjustment means 65, etc.) is performed in a certain packaging machine 10 while the packaging film 15 is being supplied. , is a diagram showing an outline of the case where the packaging film 15 is removed from the film transport path FR.

As shown in Figure (A), the upstream end T1 of the dummy member 60 is joined to the packaging film 15 on the upstream side (first region R1) of the packaging machine main body 11, and as shown in Figure (B). The packaging film 15 is cut downstream from the joint. The packaging film 15 on the upstream side of the joining part with the dummy member 60 is the packaging film 15 that is unwound from the supply roll 16, but it is the packaging film 15 before being supplied to the packaging machine main body 11, and it will be supplied hereafter. It is called a front packaging film 15'.

Thereafter, as shown in FIG. 3C, the pre-supply packaging film 15' is wound up by the film supply device 12. Thereby, the pre-supply packaging film 15' is conveyed to the upstream side (film supply device 12 side) with the dummy member 60 joined, and leaves the film conveyance path FR.

As shown in FIG. 5D, the dummy member 60 is removed from the pre-supply packaging film 15' in or near the second region R2, and only the dummy member 60 is wound up by the winding means 50. As a result, the dummy member 60 is also removed from the film transport path FR.

When wrapping the packaging film 15 over the rollers of the film transport path FR again, the dummy member 60 is sent to the second region R2 (near it) as shown in FIG. The dummy member 60 is rewound. Guided by the dummy member 60, the pre-supply packaging film 15' is again routed along the film transport path FR and reaches the upstream side of the packaging machine main body 11.

<Example 3 of using dummy parts>
FIGS. 7 and 8 show that while a certain packaging film 15 is being supplied (before the supply roll 16 is finished and there is sufficient remaining amount), another packaging film 15N of different specifications (size, etc.) is being supplied. FIG. 3 is a diagram showing an outline of a case where setup is changed.

As shown in FIG. 7(A), the upstream end T1 of the dummy member 60 is joined to the packaging film 15 on the upstream side of the packaging machine main body 11, and as shown in FIG. 7(B), it is joined to the dummy member 60. The packaging film 15 is cut on the downstream side of the section.

Thereafter, as shown in FIG. 8(A), the packaging film 15 (pre-supply packaging film 15') upstream of the joint portion is wound up by the film supply device 12. As a result, the pre-supply packaging film 15' is conveyed to the upstream side (film supply device 12 side) with the dummy member 60 joined, and the pre-supply packaging film 15' leaves the film conveyance path FR. Thereafter, the dummy member 60 is removed from the pre-supply packaging film 15' in the second region R2 (or its vicinity). The worker WK removes the original fabric roll 16 (supply original fabric roll 16) around which the pre-supply packaging film 15' is wound from the film supply device 12.

Then, as shown in the same figure (B), a new fabric roll (a new supply fabric roll 16) on which another packaging film 15N is wound is created in place of the previous fabric roll 16 (supply fabric roll 16). Attach 16N (anti-roll). Then, the starting end T3 of the other packaging film 15N is joined to the upstream end T1 of the dummy member 60 waiting in (near) the second region R2.

Then, as shown in FIG. 3C, the dummy member 60 is wound up by the winding means 50. Thereby, the dummy member 60 is conveyed toward the first region R1 together with the other packaging film 15N, and the other packaging film 15N is routed along the film conveyance path FR.

As shown in Figure (D), when the joint part (starting end T3 of the other packaging film 15N) reaches the upstream side of the packaging machine main body 11, the dummy member 60 is peeled off from the other packaging film 15N, and the other The packaging film 15N is attached to the packaging machine main body 11. Note that if the cut packaging film 15 is left in the packaging machine main body 11 and the end of another packaging film 15N is connected to the cut part, the other packaging film 15N will be removed by operating the packaging machine main body 11. Since the cut packaging film 15N is passed through the bag making machine or the packaging machine main body 11 along with the cut packaging film 15N, the film threading operation can be performed easily. The dummy member 60 peeled off from the other packaging film 15N retreats from the film transport path FR and enters a standby state.

In this way, when it is necessary to replace the packaging film 15 with another packaging film 15N while the packaging film 15 remains on the film transport path FR, packaging is carried out near the film supply device 12 and at the upstream end of the packaging machine main body 11. When the film 15 (pre-supply packaging film 15') is cut, the pre-supply packaging film 15' remaining on the film transport path FR is wasted. However, in this embodiment, since the dummy member 60 functions as a film member that indirectly connects the packaging film 15 and other packaging films 15N, it is difficult to collect the unsupplied packaging film 15' remaining on the film transport path FR. This makes it possible to avoid wasting the pre-supply packaging film 15'. In addition, since the other packaging film 15N is guided by rewinding the dummy member 60, the other packaging film 15N can be easily wrapped around the rollers of the film transport path FR.

The other packaging film 15N that is stretched in this way may require fine adjustment of the position, tension, etc. on the film transport path FR, but it is Since the tension is applied, various adjustments can be easily made compared to the case where the operator WK holds the starting end T3 and stretches it.

<First area and second area>
An example of the layout of the first region R1 and the second region R2 will be described with reference to FIGS. 9 and 10. 9 and 10(A) are plan (top) schematic diagrams showing an example of the layout of the first region R1 and the second region R2, and FIG. 10(B) is a side view of FIG. 10(A). It is.

As shown in FIG. 9(A), the second region R2 may be provided anywhere on the outer periphery of the first region R1 in plan view.

Although FIG. 1 shows an example in which the second region R2 is provided on the side of the packaging machine main body 11 along the conveyance direction T in the packaging machine main body 11, the present invention is not limited to this. As such, it may be provided at a position on the upstream side of the plurality of packaging machine bodies 11.

Further, the second region R2 is an area where a plurality of (for example, two) film supply devices 12 that supply the packaging film 15 to each of a plurality of (for example, two) packaging machine bodies 11 are collectively arranged. Therefore, a plurality of such second regions R2 may be provided. Specifically, FIG. 2C illustrates a case where second regions R21 and R22 are provided at two locations on the outer periphery of the first region R1 (for example, on the left and right sides in a plan view). In this case, for example, in the second region R21 on the left side, there is a first film supply device 12A that supplies the first packaging film 15A to the first packaging machine main body 11A, and a second packaging film 15B that supplies the second packaging film 15B to the second packaging machine main body 11B. A second film supply device 12B for supplying the third packaging film 15C to the third packaging machine main body 11C is arranged in the second area R22 on the right side, and a third film supply device 12C for supplying the third packaging film 15C to the third packaging machine main body 11C, and A fourth film supply device 12D is arranged to supply the fourth packaging film 15D.

Further, since the first region R1 is a region where a plurality of packaging machine main bodies 11 are arranged, a plurality of such first regions R1 may be provided as shown in FIG. Specifically, in the example shown in FIG. 2D, first regions R11 and R12 are provided at two locations on both sides (for example, on the left and right sides in the figure) of the second region R2 in plan view.

In this case, for example, the first packaging machine main body 11A and the second packaging machine main body 11B are arranged in the first region R11 on the left, and the third packaging machine main body 11C and the fourth packaging machine main body 11B are arranged in the first region R12 on the right. Main body 11D is arranged. In the second region R2 in the center, four film supply devices 12 (12A to 12D) that supply packaging films 15 (15A to 15D) to the four packaging machine bodies 11A to 11D, respectively, are integrated. Deploy.

Further, as shown in FIG. 10, the second region R2 is not limited to being placed outside the first region R1 in the two-dimensional space, but may be placed outside the first region R1 in the three-dimensional space. Specifically, as shown in the figure, for example, a first region R1 is provided on a floor surface or the like, and a second region R2 is provided above the first region R1 in the vertical direction (conveying direction T of the packaging machine main body 11). Also good.

Although the present embodiment has been described above, the present invention may be configured to supply the packaging film 15 to each of the plurality of packaging machine bodies 11, and the number of packaging machine bodies 11 is not limited to the above example.

The arrangement of the packaging machine main body 11 is also an example, and at least some of the packaging machine main bodies 11 may be arranged so that the conveyance direction T is in a different direction.

Moreover, the packaging machine 10 is not limited to a horizontal reverse pillow packaging machine, and may be, for example, a horizontal positive pillow packaging machine or a vertical pillow packaging machine. Furthermore, the present invention is not limited to this, and may be a three-sided seal packaging machine, a four-sided seal packaging machine, or another packaging machine that supplies a strip-shaped packaging film.

Further, the arrangement of the plurality of film supply devices 12 (four in the above example) within the film supply unit 12U is not limited to the above example, but may be arranged arbitrarily. For example, referring to FIG. 3, they may be arranged in four rows in the width direction (horizontal direction in FIG. 3) with one row in the vertical direction relative to the worker WK, or in one row in the vertical direction and in four rows in the width direction (horizontal direction in FIG. 3). They may be arranged in four rows in the depth direction of the paper surface of FIG. 3, or may be divided into multiple stages in the vertical direction. Also, they do not need to be arranged in a row.

Further, the arrangement of the two rolls 16 and 17 in each film supply device 12 may be arbitrary, such as the axes of both rolls being aligned horizontally in the left and right, vertically in the top and bottom, or aligned in the depth direction (on the same axis). Moreover, the number of raw fabric rolls supported by one film supply device 12 may be three or more. Furthermore, the plurality of film supply devices 12 may have different arrangements (support positions) of the original rolls and different numbers of support.

Further, the plurality of film supply devices 12 (four in the above example) may be aggregated in the second region R2, and may not be integrally supported by the film supply unit 12U.

Further, among the plurality of packaging machines 10 (packaging machine main bodies 11), some may not be provided with the winding means 50.

Alternatively, the packaging film 15 may be supplied to the plurality of packaging machine bodies 11 arranged in the first region R1 from a plurality of film supply devices 12 arranged collectively in the second region R2. For example, in addition to this, a conventional packaging machine 110 (a packaging machine 110 equipped with a corresponding film supply device 112 near the packaging machine main body 111) may be included.

Furthermore, the film supply system 1 according to the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and technical idea of the present invention.

That is, in the above embodiments, the position, size, length, shape, material, orientation, etc. of each component can be changed as appropriate.

1 Film supply system 10 Packaging machine 11 Packaging machine main body 12 Film supply device 12U Film supply unit 13 To be packaged 14 To be packaged conveyance supply device 15 Packaging film 16 Original fabric roll (original fabric roll for supply)
17 Original fabric roll (replacement original fabric roll)
25 Bag making device 35 Packaging body 40 Film conveyance means 60 Dummy member 63 Meandering adjustment means 65 Tension adjustment means 121 Support shaft 631 Guide roller 632 Adjustment turn bar 651 Shaft 652 Dancer roller 653 Guide roller FR Film conveyance path

Claims (9)

A film supply system that supplies packaging films to multiple packaging machine bodies,
a first packaging machine body;
a second packaging machine main body;
a first film supply device that supplies a first packaging film to the first packaging machine main body;
a second film supply device that supplies a second packaging film to the second packaging machine main body;
has
A removable strip-shaped dummy member is provided at the end of the packaging film,
The dummy member is a member having higher rigidity than the packaging film,
arranging the first packaging machine main body and the second packaging machine main body in a first area,
arranging the first film supply device and the second film supply device in a second region provided outside the first region;
A film supply system characterized by: providing winding means for the dummy member at least upstream of the bag making device of the first packaging machine main body;
The film supply system according to claim 1, characterized in that: Providing tension adjustment means for the packaging film in the transport path of the packaging film from the second region to the first region;
The film supply system according to claim 1 or claim 2, characterized in that: A meandering adjustment means for the packaging film is provided in the transportation path of the packaging film from the second area to the first area.
The film supply system according to any one of claims 1 to 3, characterized in that: A film supply method for supplying packaging films to multiple packaging machine bodies, the method comprising:
Supplying a first packaging film from a first film supply device located in a second region to a first packaging machine body located in the first region;
supplying a second packaging film from a second film supply device arranged in the second region to a second packaging machine main body arranged in the first region;
a step of joining a strip-shaped dummy member made of a member that is removably attachable to the end of the packaging film and has higher rigidity than the packaging film;
a step of conveying the dummy member on the conveyance path of the packaging film,
The second area is an area provided outside the first area,
A film supply method characterized by: winding up the dummy member at least on the upstream side of the bag making device of the first packaging machine main body;
The film supply method according to claim 5, characterized in that: a step of joining one end of a pre-supply packaging film, which is a packaging film before supply upstream of the first packaging machine main body in the first region, to one end of a band-shaped dummy member;
conveying the dummy member together with the pre-supply packaging film toward the second area;
transporting the dummy member toward the first area;
The film supply method according to claim 5, characterized in that: conveying the dummy member together with the pre-supply packaging film toward the first area;
The film supply method according to claim 7, characterized in that: joining another packaging film to the dummy member in place of the pre-supply packaging film;
and conveying the dummy member together with the other packaging film toward the first area.
The film supply method according to claim 7, characterized in that:

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