JPS63258734A - Method of cutting film of shrink-film package - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a method for removing a large number of articles from a package in which a large number of articles are stacked in multiple stages with a partition plate interposed therebetween, and the entire outer circumference of the article is shrink-wrapped with a synthetic resin film. The present invention relates to a method for cutting a film prior to cutting the film.

(Prior Art) Conventionally, for example, when conveying articles such as empty cans, a large number of articles are arranged on a rectangular pallet a, and then a rectangular partition plate is used to transport the articles, such as empty cans. The articles are stacked in multiple stages via cables C, and a rectangular top plate d is placed on top, forming a vertically long rectangular parallelepiped. In order to prevent the product from sticking or being damaged, the entire product is shrink-wrapped using a shrink film f. This is convenient as simple packaging, and has been widely used in recent years, but it is necessary to cut and remove the shrink film f after transportation, and since the entire volume is large, this removal is necessary. There was an inconvenience that the work was time-consuming and work efficiency was low.

In particular, when shrink-wrapping, the shrink-wrapped film f shrinks between the partition plates C and clings tightly to the goods as shown in Figure 2, so the film f is inadvertently
Cutting the object may damage the object, and for this reason, if the object is cut away from the object, an uncut portion will remain and the cutting operation will have to be repeated.

(Problems to be Solved) □ The present invention eliminates such conventional inconveniences and provides a method that allows the film to be easily removed from the shrink package without damaging the packaged article. The purpose is to

(Means for Solving the Problems) In order to achieve the above object, the present invention alternately stacks a large number of articles on a rectangular pallet and a rectangular partition plate placed on the articles. A rectangular top plate is placed on top of the top layer of items, and each item is arranged with a certain gap from each side of the pallet and each partition plate as the outermost position. A method for cutting a shrink film of a rectangular parallelepiped package whose outer periphery is shrink-wrapped with a film, comprising: continuously cutting the shrink film horizontally along each side of a pallet over each side of the package; This method is characterized by the step of vertically cutting incompletely shrunk portions of the shrink film formed near the vertices of each of the four corners of the top plate, each partition plate, and the pallet from the top plate to the pallet.

For cutting the shrink film in the present invention, an appropriate film cutting means such as a rotating cutting blade or a heating cutting blade may be used.

In the step of continuously cutting the shrink film of the package horizontally, cutting means may be provided for each side, but while the package is placed on a rotary table and rotated, It is efficient to cut continuously across each side.

In the present invention, when the shrink film of the package is cut vertically, as will be described later, as shown in FIG. Since the film is located at a distance from the article at this incompletely shrunk portion, by cutting at this portion, the incompletely shrunk portion can be used to avoid the packaged article. In the step of vertically cutting the shrink film of the package, a cutting device may be installed on each side of the package, but a cutting device may be installed at a position facing the side surface. The number of cutting means can be reduced by placing the package on a rotary table, rotating it, and cutting it on each side in the same manner as described above.

The horizontal cutting step and the vertical cutting step may be performed at any step (or may be performed at the same time).

(Function) The present invention continuously cuts the shrink film at positions along each side of the pallet over each side of the package,
Separate the film that covers the sides and bottom of the pallet from the film that covers the area above the pallet. In addition, the film of the package was cut vertically from the top plate to the pallet near the four corners of the top plate, each partition plate, and the pallet, and the film covering the top plate was removed, and in addition to the horizontal cutting, each side was cut. Cut the film into strips. When cutting vertically, the cutting blade is cut at incompletely contracted portions formed near the vertices of the top plate, each partition plate, and each of the four corners of the pallet to avoid contact of the cutting blade with the packaged article.

(Example) A more detailed explanation will be given below with reference to the drawings showing an example of implementation of the present invention.

The package A from which the shrink film f is cut in this embodiment is the one shown in FIGS. 1 and 2 described above.

This package A is placed on a rotary table B as shown in the third figure, and the film f is cut by three rotary cutting blade devices C, D, and E provided on one side of the package A. That is,
The film f is horizontally cut along the upper side of the barrel a of the package A by a rotary cutting blade device C over its entire length. Parallel to this cutting, the rotary cutting blade device H cuts the vicinity of both side edges of the side surface vertically from the top plate d to the horizontal cutting position. At this time, the vertical cutting position is the incomplete shrinkage part g where the film f formed near the apex of the four corners of the top plate d, temporary partition C, and pallet a is difficult to shrink, as shown in the fourth figure. cut.

Next, the rotary table B is rotated 90 degrees, and the rotary cutting blade devices C, D, and E perform horizontal cutting and vertical cutting in the same manner as described above, as shown by the phantom line in FIG.

When the film f on each side of the package A is cut in this way, the film f becomes a plurality of strips hanging from the top plate d, except for the part that covers the top plate d, as shown in Figure 5. It peels off from the packaged item.

Thereafter, as shown in FIG. 6, the film f is removed by a film removal device F provided above the top plate d.

(Effects) The present invention alternately stacks a large number of articles and rectangular partition plates placed on the articles on a rectangular pallet in multi-tier stacking, and places a rectangular top plate on the top layer of articles. At the same time, each item is arranged with a certain gap from each side of the pallet and each partition plate as the outermost position, and the entire outer periphery of the item is shrink-wrapped with film. This has the effect that the packaged article can be reliably cut without damaging it, and the cut film can be easily removed.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a shrink-wrapped package, FIG. 2 is a side view of a portion of FIG. Fig. 3 is a perspective view for explaining the cutting process, Fig. 4 is a plan view for explaining the cutting position, Fig. 5 is a perspective view of the cutting completed state, and Fig. 6 is a perspective view of the state in which the film is removed. It is. A...Package a...Pallet +-b...Goods C.
...Partition plate d...Top plate f...Shrink film g...Incomplete shrinkage part Fig. 1 Fig. 2 Fig. 3 Fig. 4, 7d 5th - Δ 6th factor

Claims (1)

[Claims] 1. On a rectangular pallet, a large number of articles and rectangular partition plates placed on the articles are stacked alternately in multi-tier stacking, and a rectangular top plate is placed on the topmost article and the pallet is stacked. and a method of cutting the shrink film of a rectangular parallelepiped package in which each article is arranged with a certain gap from each side of each partition plate as the outermost position, and the entire outer periphery of the article is shrink-wrapped with film. , a step of continuously cutting the shrink film horizontally along each side of the pallet over each side of the package; A film cutting method for a shrink film package, comprising the step of vertically cutting the incompletely shrunk portion of the shrink film from the top plate to the pallet.