JPS643737B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the packaging method for wrapping rolls, and more particularly, cylindrical rolls such as iron plate coils. An object of the present invention is to provide a completely new and useful method for wrapping a roll, in which wrapping can be carried out reliably and completely, and the wrapping paper will not peel off from the inner circumferential surfaces of both sides at all.

Conventionally, packaging methods for this type of rolls include packaging using fully automatic and semi-automatic packaging machines.
The wrapping method involves, for example, wrapping the surface of the roll while automatically unwinding the wrapping paper wound into a roll, and then wrapping the wrapping paper on the inner circumferential surface of both sides of the roll while folding the flaps of the wrapping paper into the inner circumferential surface of the roll. The wrapper is wrapped by inserting the wrapper into the inner circumferential surfaces of both sides of the roll and rotating it so that the edges of the wrapping paper are pressed and folded into both sides of the roll.

However, according to this packaging method, the edges of the wrapping paper that are folded into both sides of the roll are only pressed against the inner circumferential surface of the roll by the pressure drum, so that the swell of the wrapping paper does not bulge at the edges in the wrapped state. This has caused a situation in which the edges of the wrapping paper that have been pressed together come off, which has been a fatal drawback in this type of packaging method.

The present invention resides in a completely new packaging method that ensures the elimination of the above-mentioned drawbacks, thereby making it possible to obtain a perfect roll packaging configuration. The specific configuration thereof will be explained below according to an embodiment shown in the drawings.

First, a wrapping paper 2 made of a waterproof material laminated with a polyethylene fiber cloth having a predetermined width wider than the roll 1 made of an iron plate coil is wound into a roll. It will automatically extend to the 1st side. that time,
An automatic gluing machine 3 is installed in front of the roll 1, and glue is applied to the inner periphery of the tabs 4, 4' on both sides of the wrapping paper 2 to be rolled out, forming a glue layer 5 of a predetermined width while wrapping the wrapping paper 2. to be transferred.

The transferred wrapping paper wraps the surface of the roll 1 sent by the conveyor and is automatically cut to perform surface wrapping.

Thereafter, the edges 4, 4' of the wrapping paper 2 are folded into the inner circumferential surface 1' of the roll 1 on both sides by an edge folding machine (not shown), and the edges 4, 4' of the wrapping paper 2 are folded into the inner circumferential surface 1' of the roll 1. The tabs 4, 4' are attached to the inner circumferential surface 1' of the roll 1 by the glue layer 5 provided on the tabs 4, 4', and complete packaging is completed by subsequent pressurization and drying.

The roll 1 wrapped in this way, especially the wrapping state on the inner peripheral surfaces 1' on both sides, is as shown in FIG. This results in a state in which the tabs 4, 4' are stuck together with glue, and there is no possibility of the tabs 4, 4' peeling off from these areas as in the prior art, resulting in a reliable packaging finish.

Moreover, since the glue is automatically applied during the process of automatically rolling out the wrapping paper 2, packaging can be carried out extremely efficiently without any difference in workability from conventional packaging operations of this type.

In this example, glue was used as the adhesive to be applied to both sides of the wrapping paper, but other adhesives such as solvent-based adhesives or adhesives may also be used, and the type of adhesive is not critical. do not have. Furthermore, the width and location of application are by no means limited to the above embodiments.

Furthermore, the material of the wrapping paper may be other than the above embodiments, such as kraft paper coated with polyethylene film, and the width and length of the wrapping paper can be arbitrarily selected depending on the relationship with the roll.

In addition, the type of roll is by no means limited to the above-mentioned iron plate coil, and any type may be used as long as it is a cylindrical roll.

Furthermore, the side wrapping means after surface wrapping of the roll is by no means limited to the above-mentioned embodiments; in short, by folding the tabs on both sides of the wrapping paper into the inner periphery of both sides of the roll, the inner periphery can be wrapped around the inner periphery via an adhesive. Just stick it on the surface.

As mentioned above, the present invention is a method for wrapping wrapping paper in a roll by automatically applying adhesive such as glue to the edges on both sides of the wrapping paper, and then folding the edges. Therefore, the edges of the wrapping paper can be folded and attached to the inner circumferential surfaces of both sides of the roll, which eliminates the problem of wrapping paper from the edges, which has traditionally been a problem in this type of roll wrapping method. This has resulted in a particularly remarkable effect in that it is possible to prevent peeling of the product and to ensure packaging without causing peeling after packaging.

Moreover, since the edges are attached to the inner circumferential surface of the roll and the edges of the wrapping paper are fixed, even if the wrapping paper bulges, it will never peel off from the edges. Therefore, the effect of preventing the peeling of the flaps when the wrapping paper bulges, which has been a particular problem, has been significantly improved compared to the conventional method.

Furthermore, since the adhesive is automatically applied at the same time as the wrapping paper is automatically fed out, the application process can be performed continuously, which improves work efficiency and improves production efficiency. can.

Furthermore, after applying adhesive to the edge of the wrapping paper,
At the same time as the selvage is folded in, the selvage is affixed to the inner circumferential surface on both sides of the roll via an adhesive, which requires complicated and extra work for applying the adhesive and folding the selvage. There is a practical advantage that the packaging operation of the roll as a whole can be performed very easily.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram showing the packaging process of the present invention.
FIG. 2 is a bottom view of the main part of the wrapping paper coated with adhesive. FIG. 3 is a perspective view of the roll after packaging. FIG. 4 is a longitudinal sectional view of FIG. 3. 1...roll, 1'...inner peripheral surface of roll, 2...
...Wrapping paper, 4,4'...Ear piece, 5...Glue layer.

Claims (1)

[Claims] 1 After the wrapping paper 2 is automatically fed out to perform surface wrapping of the cylindrical roll 1, the tabs 4, 4 on both side edges of the wrapping paper 2 are folded into the inner peripheral surfaces of both sides of the roll 1, and the roll 1 is wrapped. In the method for wrapping a roll, when the wrapping paper 2 is fed out, the tabs 4,
4, and then, at the same time as the tabs 4, 4 are folded in, the tabs 4, 4 are attached to the inner peripheral surfaces of both sides of the roll 1 via the adhesive. A roll packaging method characterized by: