JP4354899B2 - Processing apparatus and method for manufacturing packaged product - Google Patents

Description

  The present invention relates to the field of packaging articles with shrink film.

An article such as a paper pack filled with a beverage such as shochu may be wrapped with a shrink film (heat shrink film). The shrink film is made of polypropylene, for example, and has a property of shrinking by heat. The shrink film is shrunk by heating after the shrink film is placed on the article.
JP 2001-322634 A

  FIG. 1 is a diagram illustrating an example of a product in which an article is packaged with a shrink film. The article 10 is, for example, a paper pack filled with beverages. Typically, the article 10 is a four-sided body 30, a bottom 60, two triangular top surfaces 50, a top seal 40, a spout and It includes a cap 70 attached thereto. Since the shrink film 20 typically has a planar shape before the packaging of the article, when the article 10 which is a three-dimensional object is intended to be packaged by this, the protrusions 25 may be generated in the shrink film 20. When an article 10 having a shape as shown in FIG. 1 is packaged with a general shrink film packaging device, both sides (two locations) of the top seal 40 and two locations near the boundary between the bottom portion 60 and the trunk portion 30 Protrusions 25 can occur in The protrusions 25 are sometimes called “corners”. In addition, the formation of the protrusion 25 is sometimes referred to as “cornering”.

  Square cornering is a problem that cannot be avoided in a general shrink film packaging device. In the case of having a product 100 in which an article 10 such as a paper pack is packaged with a shrink film, it is considered that consumers often pinch both ends of the top seal 40 with fingers. Thus, if there are protrusions 25 on both sides of the top sheep 40, the consumer will feel pain when holding the product 100. Moreover, if the protrusion 25 is caught on clothes or the like, the clothes or the like may be damaged.

  The present invention has been made on the basis of recognition of the above-mentioned problems, and an object of the present invention is to reduce the protrusions generated on the shrink film in which the article is packaged.

A first aspect of the present invention relates to a processing apparatus for processing an article, and the processing apparatus includes a projection formed on the shrink film when the article is packaged by a packaging apparatus for packaging the article with a shrink film. A roller for pressing the outside of the apparatus to reduce the protrusion, and a heater disposed inside the roller, the protrusion being heated by heating the roller by the heater , The roller is disposed outside the packaging device and in the vicinity of the outlet of the packaging device .

A second aspect of the present invention relates to a processing apparatus for processing an article, and the processing apparatus is generated in the shrink film when the article is packaged by the packaging apparatus and the packaging apparatus for packaging the article with the shrink film. A roller for pressing the protruding portion outside the packaging device to reduce the protruding portion; and a heater disposed on the inner side of the roller, and the protruding portion when the roller is heated by the heater. Is heated.

A third aspect of the present invention relates to a manufacturing method for manufacturing a product in which an article is packaged with a shrink film. The manufacturing method includes a step of packaging an article with a shrink film by a packaging device, and the article is packaged with the packaging device. A pressing step for reducing the protrusion by pressing the protrusion generated in the shrink film with a roller disposed outside the packaging device, and the roller is disposed by a heater disposed on the inside thereof. The protrusion is heated by heating .

  ADVANTAGE OF THE INVENTION According to this invention, the projection part which arises in the shrink film which packaged articles | goods can be made small.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 2 is a diagram showing a schematic configuration of a processing apparatus according to a preferred embodiment of the present invention. The processing apparatus 1000 shown in FIG. 2 includes a packaging apparatus 200 that packages an article with a shrink film, a conveyance path (conveyor) 400 that conveys a product 100 obtained by packaging the article with the packaging apparatus 200, and the packaging apparatus 200. And a pressing mechanism 300 that presses the projection 25 generated on the shrink film that packages the article when the article is packaged to reduce the projection 25.

  FIG. 3 is a diagram illustrating the principle of packaging in the packaging apparatus 200. First, as shown in (a), the shrink film 20 is put on the article 10 such as a paper pack filled with a beverage or the like from above. Next, as shown in (b), the shrink film 20 is formed into a bag shape so that the body portion of the article 10 is completely wrapped, and the top seal side and the bottom side are cut by a hot wire heater or the like. Next, as shown in (c), in the heat tunnel, the shrink film 20 is contracted by heating to, for example, about 150 ° C., and the product 100 in which the article 10 is wrapped with the shrink film 20 is obtained. However, in this state, as shown in FIG. 1, the protrusions (corners) 25 are typically formed on both sides (two places) of the top seal 40 and two places near the boundary between the bottom portion 60 and the trunk portion 30. Can exist.

  These protrusions 25 are reduced by the pressing mechanism 300. The pressing mechanism 300 may be disposed in the heat tunnel of the packaging device 200, but the heat tunnel is maintained at, for example, about 150 ° C. in order to contract the shrink film, so that it can withstand such heat. In addition, it is necessary to design the pressing mechanism 300.

  Therefore, the pressing mechanism 300 is preferably arranged outside the packaging device 200 (or outside the heat tunnel) and in the vicinity of the outlet of the packaging device 200 (for example, a position within 50 cm from the outlet). Here, when the pressing mechanism 300 is arranged at a position far away from the outlet of the packaging device 200 (for example, a position away from the outlet by 50 cm or more), the heat tunnel of the packaging device 200 before the product 100 reaches the pressing mechanism 300. Since the temperature of the shrink film heated inside falls, it is necessary to heat a shrink film to about 150 degreeC again, and it cannot be said that it is efficient.

FIG. 4 is a diagram illustrating a configuration example of the pressing mechanism. The pressing mechanism 300 includes, for example, a roller 310 that presses the protruding portion 25 of the shrink film 20 and reduces it. Preferably, the pressing mechanism 300 includes one or a plurality of pairs of rollers 310 disposed opposite to both sides of a conveyance path 400 that conveys a product (packaged article) 100 discharged from the packaging device 200. The roller 310 can be rotatably supported by a shaft 330 provided on the arm 350. The arm 350 is rotatably supported by a shaft 340, and one end thereof is pressed by a spring 360 to press the roller 310 against the protrusion 25 of the product 100.
When the pressing mechanism 300 is disposed outside the packaging device 200, it is preferable to include a heater 320 for heating the protrusion 25. For example, the heater 320 is preferably disposed so that the protrusion 25 is heated by heating the roller 310. The heater 320 can be disposed inside the roller 310, for example.

  By pressing the protruding portion 25 generated on the shrink film by the pressing mechanism 300, the protruding portion 25 becomes smaller, for example, as shown in FIG. Thereby, when the consumer grasps the product 100, the finger does not feel pain. Further, it is possible to prevent clothes or the like from being damaged by being caught on the protrusions.

It is a figure which shows an example of the product which packaged the articles | goods with the shrink film. It is a figure which shows schematic structure of the processing apparatus of suitable embodiment of this invention. It is a figure which shows the principle of the packaging in a packaging apparatus. It is a figure which shows the structural example of a press mechanism. It is a figure which shows an example of the product by which the projection part of the shrink film was made small.

Explanation of symbols

10 Goods (for example, paper packs)
20 Shrink film 25 Projection (corner)
30 trunk 40 top seal 50 triangular top surface 60 bottom 70 cap 100 product 200 packaging device 300 pressing mechanism 310 roller 320 heater 330 shaft 340 shaft 350 arm 360 spring 400 conveyance path 1000 processing device

Claims (3)

A processing device for processing an article,
A roller for reducing the protrusion by pressing a projection generated on the shrink film when the article is packaged by a packaging apparatus that wraps the article with the shrink film;
A heater disposed inside the roller,
The protrusion is heated by heating the roller by the heater ,
The roller is disposed outside the packaging device and in the vicinity of the outlet of the packaging device,
The processing apparatus characterized by the above-mentioned. A processing device for processing an article,
A packaging device for packaging articles with shrink film;
A roller for pressing the protrusion generated in the shrink film when the article is packaged by the packaging apparatus outside the packaging apparatus to reduce the protrusion, and
A heater disposed inside the roller,
The protrusion is heated by heating the roller by the heater,
Processing apparatus according to claim and this. A manufacturing method for manufacturing a product in which an article is wrapped with a shrink film,
A step of packaging the article with a shrink film by a packaging device;
A pressing step of reducing the protrusion by pressing a protrusion formed on the shrink film when the article is packaged by the packaging apparatus with a roller disposed outside the packaging apparatus,
The protrusion is heated by the roller being heated by a heater disposed inside the roller,
The manufacturing method characterized by the above-mentioned.

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