JP2011195152A - Reverse pillow packaging machine and packaging method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correctly recognize the feeding position of an object to be packaged on the conveying surface, and to reliably executing the manual feed even with an opaque packaging film with a desired pattern being formed on the front side.SOLUTION: An object is packaged by using a strip film 15 on which a pattern D is applied on the front side, the pattern is transmitted to the back side and visible when the light is applied from its front side, and the pattern is invisible from the back side at a part not applied with the light. In the strip film, film parts on the right and left sides are raised upwardly by a bag-manufacturing apparatus while the upper portion is kept in an open state. In the strip film after passing through the bag-manufacturing apparatus, its front side is located on the lower side, and the light is applied by a light application device 35 from the lower side of the strip film in an object feed area R on the downstream side of the bag-manufacturing apparatus. Thus, the pattern is transmitted upwardly in the conveying state on the back side of the strip film. The transmitted visible pattern forms a rough indication of the feeding position of the object to feed the article.

Description

  The present invention relates to a reverse pillow wrapping machine and a packaging method, and more particularly to an improvement in a technology for supplying an article to be packed.

  As one form of the packaging machine, there is a pillow packaging machine that directly places an article to be packaged directly on a film to be transported, and then forms the film into a cylindrical shape and wraps and packages the article to be packaged. . This type of pillow wrapping machine is disclosed in, for example, Patent Document 1 and has the following configuration.

  First, the belt-like film wound around the raw roll is continuously supplied to the film conveying device, and the belt-like film is conveyed by the film conveying device. Place the items to be packed so that they are evenly spaced. Thereby, a strip | belt-shaped film is conveyed in the state by which the to-be-packaged goods were put on the film conveyance apparatus at equal intervals (packaging pitch), and is supplied to the bag making machine of the next stage.

  When passing through the bag making device, the belt-like film is formed into a cylindrical shape so as to wrap the article to be packaged, thereby forming the cylindrical film. And a to-be-packaged article is conveyed with a cylindrical film. A center seal device and an end seal device are arranged along the conveying direction. The center seal device seals the film polymerization end of the tubular film. The end seal device seals the tubular film in the lateral direction of travel (portion where the front and rear packages are not present) and cuts the portion of the tubular film in which the front package is stored. Is separated from the subsequent cylindrical film to produce a package.

  By the way, when supplying a package by hand to a desired position of the belt-shaped film transported on the film transport device, when a mark (registration mark) indicating the supply position is printed on the belt-shaped film, A package can be placed based on the printed mark. On the other hand, when supplying an article to be packaged to a desired position of a transparent belt-like film on which such mark is not printed, a “placing position instruction method for an article to be packaged on wrapping paper” as shown in Patent Document 1 Can be used. In other words, the technology disclosed in Patent Document 1 constitutes a transport surface for a belt-shaped film and can display an indication line indicating a transport position on the belt-shaped film moving on the transport surface. A placement position instruction is provided, and the article to be packaged is supplied to the desired position of the band-shaped film designated by the article to be packaged placing means.

  This packaged article placement position indicating means is constituted by a table provided with a plurality of light emitting elements such as diodes arranged along the transport direction of the belt-like film. And the light radiate | emitted from the light emitting element permeate | transmits a transparent strip | belt-shaped film, and is displayed as an indication line on the upper surface in the conveyance attitude | position of a strip | belt-shaped film. Each of the instruction lines is arranged so as to extend in a direction crossing the belt-like film (a direction perpendicular to the transport direction), and the drawing position of the instruction line synchronized with the movement of the belt-like film is also moved. Thereby, the operator who supplies a to-be-packaged object can supply a to-be-packaged object manually for every predetermined pitch by placing the to-be-packaged object between the front and back instruction lines.

Japanese Patent No. 3738093

  In the above-described apparatus, the packaging object placement position instruction means is required, so that the structure of the apparatus is complicated. And when changing the supply pitch of the product, it is necessary to change the distance before and after the instruction line drawn by the light emitted from the light emitting element, and when the transport speed is changed, Since it is necessary to change the moving speed of the instruction line, it is necessary to change or adjust the set value each time, which causes a problem that it becomes complicated.

  In order to solve the above-described problems, a reverse pillow packaging machine according to the present invention is (1) a bag making machine in which an opaque film fed from a raw fabric roll is reversed and a front surface on which a design is applied faces downward. A packaged material supply area provided downstream of the bag making device, and the packaged film is wrapped in a cylindrical shape on the downstream side of the packaged product supply position in the packaged product supply area, and the band-shaped film A center seal device that seals the film portion that is contacted on both side edges of the center seal device, and a means that is disposed downstream of the center seal device and seals or cuts the tubularly formed film in the lateral direction. In the package supply area, a light irradiation device for irradiating light from below to the belt-like film is provided, and the pattern appears to be transmitted to the back side when the film passes through the light irradiation device. In It was.

  In a normal sales state or the like, a transparent film may be used for the packaging film in order to prevent the contents of the package from being seen or to shield light from the package. And in the manufacturing process of a package, a to-be-packaged product will be supplied on the back surface of the strip | belt-shaped film located in the inner surface in a package. At this time, when a pattern or the like is applied to the front surface of the belt-like film together with the package, it is necessary to place an article to be packaged at a location corresponding to the position of the pattern. Therefore, in the present invention, by irradiating light with a light irradiation device from below the belt-like film in the package supply area downstream of the bag making machine, the front surface of the belt-like film (lower side in the transport state) Since the design is transmitted through the back side of the belt-like film (upper side in the transported state), the product can be positioned by placing the product to be packaged on the printed design. Since the pattern formed on the front surface of the film can be used as a mark for the supply position of the packaged object in this way, a device for indicating a special supply position is not necessary, and the configuration is simplified.

  (2) The strip film can be an aluminum vapor deposition film or an aluminum laminate film. In addition, the packaging method of the present invention is (3) supplying the belt-like film from below the bag making machine and passing the bag making machine to guide both side edges of the belt-like film to the upper side of the conveying surface, The side edges guided to the upper side are brought into contact with each other, the contacted portion is sealed with a center seal device, and then the strip-like film formed in a cylindrical shape is laterally sealed and cut to cut the package. A method for packaging in a reverse pillow packaging machine to be manufactured, wherein the belt-like film has a pattern on the front surface, and the pattern is transmitted to the back side when irradiated with light from the front surface. The pattern is not visible from the back side at the part not irradiated with light. In the bag making machine, the film parts on both the left and right sides of the belt-like film are raised upward, but the upper part is opened. ,in front The band-like film after passing through the bag making machine has its front surface positioned on the lower side, and a certain section on the downstream side of the bag making machine maintains its open state, and a part of the certain section or By irradiating light from below the belt-like film in all regions, the design can be seen to be transmitted upward in the conveying state on the back side of the belt-like film, and the design that appears to be transmitted is packaged. As a measure of the supply position, a step of supplying the packaged material onto the strip-shaped film in the open state is included.

  (4) The opaque belt-shaped film fed out from the raw roll is turned upside down with a bag making machine, the front side with the design is faced down, and transported to the package supply area in that state. In the article supply region, light is irradiated from below the band-shaped film to transmit the pattern to the back side, and the material to be packaged is manually supplied onto the band-shaped film based on the pattern, and then the both sides of the band-shaped film. The edge portion may be superposed to form a cylinder and heat-sealed, and then the cylindrical band-shaped film may be heat-sealed in the lateral direction and cut.

  In each of the above inventions, the lateral sealing and cutting with respect to the film may be integrally processed by an end seal device provided with cutter means as in the embodiment, or after the sealing process, the cutting process is performed. Also good.

  Even when manufacturing a packaging body using an opaque packaging film with a desired pattern on the front surface, the package is supplied and manufactured while aligning the pattern with a simple configuration. be able to.

1 is an overall view showing a preferred embodiment of the present invention. It is a figure which shows the strip | belt-shaped film. It is a top view of the principal part which shows suitable one Embodiment of this invention.

  As shown in FIG. 1, a reverse pillow packaging machine 10 used in the present embodiment is arranged below a packaging machine main body 11 and the packaging machine main body 11, and a belt-like packaging film is continuous with the packaging machine main body 11. And a film supply device 12 for supplying the film.

  The film supply device 12 links the output of a drive motor (not shown) (speed-controllable motor such as a servo motor) to the original roll 16 obtained by winding the belt-like film 15 into a roll. Supplying to the packaging machine body 11 at a constant speed while appropriately controlling the rotation speed. Further, various rollers are arranged at predetermined positions from the original fabric roll 16 to the packaging machine body 11, and the belt-like film 15 fed out from the original fabric roll 16 is passed over the rollers, thereby passing through a predetermined path. To the packaging machine body 11. Of course, in the present invention, it is not always necessary to link the drive motor to the raw roll 16, and a feed roller may be provided on the transport path of the packaging film and pulled out.

  The packaging machine main body 11 includes a bag making device 20 that forms a belt-like film 15 supplied upstream thereof into a cylindrical shape. The bag-making machine 20 is opened at the upper part in a state where the central part of the band-shaped film 15 is the bottom and the film parts on the left and right sides rise upward (both side edges are further opened outward). Bag form.

  An article supply region R is set on the downstream side of the bag making machine 20. The package 13 is manually supplied to the band-shaped film 15 whose upper side is opened in the package supply area R.

  On the downstream side of the product supply region R, a belt conveyor 23 that conveys the belt-like film 15 in a state where the article 13 is set, a center seal device 24 installed at a predetermined position above the belt conveyor 23, and a belt conveyor 23, an upper restraining belt 25 disposed on the downstream side of the center seal device 24, an end seal device 30 disposed on the downstream side of the belt conveyor 23, and a downstream side of the end seal device 30. A carry-out conveyor 26.

  A normal bag-making machine passes the belt-like film 15 continuously supplied from the film supply device 12 so that both side edge portions of the belt-like film are brought into contact (polymerization) so as to surround the periphery of the packaged object. In this embodiment, since the article to be packaged is supplied after passing through the bag making machine 20, the constant section (the article to be packaged supply area R) on the downstream side of the bag making machine 20 is Both side edge portions 15a are maintained in a separated state, and then brought into contact with each other to form a cylinder.

  The center seal device 24 seals both side edge portions 15a of the polymerized belt-like film 15. The center seal device 24 includes a pair of bar-shaped center sealers 24a. The pair of center sealers 24a heats both side edge portions 15a of the belt-like film 15 while being sandwiched from both sides with a predetermined pressure. To do. Thus, the side edge portions 15a are heat-sealed and integrated into a center seal portion. In addition, pinch rollers 24b and 24c are provided before and after the center sealer 24a. The pinch rollers 24b and 24c sandwich both side edge portions 15a of the belt-like film 15 and give a conveying force. The portion 15a is stably conveyed by the center sealer 24a.

  The upper restraining belt 25 is arranged in the immediate vicinity of the upstream side of the end seal device 30 and suppresses the article 13 in the tubular film 21 from being lifted upward so that it can be conveyed while maintaining a horizontal state. ing.

  The end seal device 30 seals and cuts the tubular film 21 in a direction orthogonal to the traveling direction, that is, in a transverse direction. The film part to be sealed / cut is a predetermined position between the front and back objects 13 to be packaged. Thereby, the head part of the cylindrical film 21 is isolate | separated from the subsequent by passing the end seal apparatus 30, and the package body 27 is manufactured.

  Here, in this embodiment, the light irradiation device 35 is provided below the transport surface of the strip-shaped film 15 in the packaged object supply region R. This light irradiation device 35 irradiates light over the entire surface of the package supply area R, and various light emitters such as fluorescent lamps and LEDs can be used, for example. Even if the light emitting sources are provided at a plurality of locations, it is only necessary to light them as a whole, so that ON / OFF control can be easily performed. In FIG. 1, for convenience of explanation, the light irradiation device 35 is drawn downward at a predetermined distance with respect to the transport surface of the belt-like film 15 after passing through the bag making device 20. Needs to be formed of a transparent member on the transport surface. Moreover, you may use the upper surface (front surface) of the light irradiation apparatus 35 as a conveyance surface.

  Since the strip-shaped film 15 used in this embodiment is made opaque by being subjected to aluminum deposition on the back surface of a predetermined film, the design printed on the front surface of the film is not seen through from the back side. It has become. That is, as shown in FIG. 2A, a pattern D (shown by an arrow here) D is printed at regular intervals on the front surface of the belt-like film 15. This design D is a package design or the like in the package 27 and is formed for each packaging pitch.

  On the other hand, since this belt-like film is subjected to aluminum vapor deposition on the back surface, as shown in FIG. 2B, when the belt-like film 15 is viewed from the back surface, it is opaque and the design D cannot be visually recognized. In the figure, it is indicated by a hidden line.

  However, this kind of aluminum vapor deposited film is not transparent and cannot be seen on the front surface, as shown in the figure, but it is not irradiated with light from the front surface side. When the back surface was seen, the present inventor knew that the pattern D was transparent and could be confirmed from the back surface side. Of course, it may be difficult to see due to the thickness of the aluminum vapor deposition, the color of the pattern on the front side, etc. In that case, the distance between the light emitting surface of the light irradiation device 35 and the belt-like film is made closer, or the light emission amount is increased. By making adjustments such as, the design D can be confirmed from the back side.

  Therefore, as shown in FIG. 3, the film part located on the light irradiation device 35 among the film parts of the belt-like film 15 has the pattern D printed on the front surface on the back side, that is, the upper surface in the transport posture. Can be seen from the side. And since the symbol D is formed for each packaging pitch, the symbol D becomes a mark indicating the supply position of the article 13 to be packaged, so that the worker can see through the back side of the belt-like film 15. The package 13 is supplied manually on the pattern D. Thereby, even if it is the pattern D of the front surface which is opaque in a normal conveyance state and cannot be finally confirmed from the back surface side of the belt-like film 15 located inside the package, it becomes the packaged object supply region R. While being transported on the light irradiation device 35, the operator can easily confirm the design D, and the design D is formed for each packaging pitch with respect to the belt-like film 15, so that positioning of the product supply can be performed. Easy to do.

  Furthermore, if the packaging pitch is different, the formation pitch of the pattern applied to the band-shaped film to be used is changed, and even if the moving speed of the band-shaped film 15 is changed, the movement of the pattern D is accompanied accordingly. Since the speed also changes, the worker may always set the package 13 at the position of the visible symbol D. And even if a manufacturing condition changes, the light emission state of the light irradiation apparatus 35 does not need to be adjusted according to it and it only needs to be always lighted, Therefore It can implement | achieve with a simple structure.

DESCRIPTION OF SYMBOLS 10 Packaging machine 11 Packaging machine main body 12 Film supply apparatus 13 Packaged object 15 Strip | belt-shaped film 15a Both edge parts 21 Cylindrical film 24 Center seal apparatus 30 End seal apparatus 35 Light irradiation apparatus

Claims (4)

A bag-making machine that reverses the opaque film fed from the roll and turns the front side down.
A package supply area provided downstream of the bag making machine;
A center seal device that wraps the packaged object in a cylindrical shape on the downstream side of the supply position of the packaged object in the packaged object supply region, and seals the film part where both side edges of the belt-shaped film are in contact with each other;
Means for horizontally sealing or cutting the cylindrically formed film formed on the downstream side of the center sealing device, and providing light to the packaging material supply region from below with respect to the belt-like film. Provide a light irradiation device to irradiate,
A reverse pillow wrapping machine, wherein when the film passes through the light irradiating device, the design is seen through the back side.   The said package-like film is an aluminum vapor deposition film or an aluminum laminated film, The packaged article conveyance supply apparatus of Claim 1 characterized by the above-mentioned. The belt-like film is supplied from the bottom of the bag making machine, and by passing through the bag making machine, both side edges of the belt-like film are guided to the upper side of the transport surface, and both side edges led to the upper side are contacted. And sealing the contacted portion with a center seal device, and then sealing the strip-shaped film formed in a cylindrical shape in the lateral direction and cutting it to produce a package. ,
The belt-like film has a design on the front surface, and when the design is irradiated with light from the front surface, the design appears to be transmitted to the back side, and the design is not exposed to light. Is invisible from the back side,
In the bag making machine, the film portions on both the left and right sides of the belt-like film are raised upward, but the upper side is opened, and the belt-like film after passing through the bag making machine has its front surface on the lower side. Position to,
The constant section on the downstream side of the bag making machine maintains its open state,
By irradiating light from below the belt-like film in a part or all of the fixed section, the design is made to appear to be transmitted upward in the conveying state on the back side of the belt-like film,
A packaging method characterized by including a step of using the pattern that is seen through as a guide for a supply position of an object to be packaged, and supplying the object to be packaged on the strip-shaped film in an open state.   The opaque belt-shaped film fed out from the roll is turned upside down by a bag making machine, the front side with the design is turned downward, and conveyed to the package supply area in that state, and the package supply area In this case, light is irradiated from below the band-shaped film to transmit the pattern to the back side, and the package is manually supplied on the band-shaped film based on the pattern, and then both side edges of the band-shaped film are removed. A packaging method comprising: polymerizing to form a cylinder and heat-sealing, and then heat-sealing and cutting the cylindrical band-like film in a lateral direction.

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