JPS6058314A - Method of packing coil-shaped product - 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 The present invention relates to a method for packaging metal plate coils, paper rolls, and other coiled products (hereinafter collectively referred to as coils).

Conventionally, as a method of wrapping the above-mentioned coil with wrapping paper,
As shown in FIG. 1, a wrapping paper 2 wider than the coil width of the coil L is wrapped around the outer periphery of the coil and pasted with adhesive tape 8, and the wrapping paper portions 2a protruding from both ends in the width direction of the coil are attached to the side end surfaces of the coil. Fold each coil 1aK into a pleated shape as shown in FIG. Pasted and wrapped. However, the above-mentioned conventional methods are all performed manually, and therefore not only require a lot of labor but also have the problem of being extremely inefficient.

There have been attempts to mechanize the above-mentioned coil packaging work and package it efficiently, and various proposals and experiments have been made in recent years, but industrial mechanization has not yet been achieved in the metal coil packaging field.

An object of the present invention is to provide a method for mechanizing and efficiently performing the above-mentioned coil packaging work, and is particularly aimed at providing a method for efficiently performing the above-mentioned coil packaging work.
- The purpose is to provide a method for making a wall by pasting the folded end of the wrapping paper in the inner circumferential direction of the center hole using adhesive tape.

The invention will now be explained with reference to the drawings.

4 to 10 show a mechanized process of folding the folded end 2b of the wrapping paper 2 into the center hole 4 of the coil 1 and pasting and fixing it to the inner circumferential surface 1b with an adhesive tape 5 according to the present invention. The steps are shown in sequence.

FIG. 4 does not show the wrapping paper 2 wrapped around the outer periphery of the coil 1. In FIG. 4, reference numeral 6 denotes an inner diameter processing jig, which is connected to a suitable driving device such as a cylinder so that it can reciprocate along the central axis of the center hole 4 of the coil 1 and move in and out of the center hole 4.
A piston-like body 7 having an outer diameter smaller than the inner diameter of the central hole 4 is provided, and an expansion +, iJ
When the bag 8 is removed, compressed air is introduced into the bag 8 through the internal introduction port 0 of the piston-like main body 7, and the bag 8 is expanded as described later. It is configured to be pressed against the inner circumferential surface 1b of Jl.

First, the inner diameter processing jig 6 is moved from the position shown in FIG. 4 to arrow A as shown in FIG.
The piston body 7 is positioned within the center hole Φ by moving in the direction of . At this time, the air has been removed from the bag 8, and there is a sufficient gap between the jig 6 and the inner periphery of the center b.

Next, the portions 2a of the wrapping paper 2 protruding from both ends in the coil width direction are folded 7 times in the direction of the arrow B into the ends 1a of the coil 1 in the direction of the arrow B (proof folding).

Next, the folded part folded as described above is folded into the sixth fold.
As shown in the figure, after pressing against the coil side end surface 1aK by the wrapping paper holding ring 10, the inner diameter processing jig 6 is retreated in the direction of arrow C, and more than half of it is pulled out from the center hole 4, as shown in FIG. .

Next, as shown in FIG. 7, air is introduced into the bag 8 through an inlet 9.
The bag 8 is inflated until it comes into close contact with the inner circumferential surface 1b of the center hole 4, and the folded portion 2b of the wrapping paper 2 to be attached to the inner circumferential surface 1b of the center hole 4 is covered with adhesive λ-. It is temporarily attached to the outer peripheral surface of the bag body 8 using the i-tape 5.

This temporary adhesion work of the adhesive tape 5 is carried out through the center hole 4 of the coil 1.
Since the tape application is performed outside the tape, any suitable taping machine known in the art can be used. Furthermore, it is necessary to coat the outer peripheral surface of the bag 8 with a resin or the like so that it can be easily peeled off from the adhesive tape.

As described above, after temporarily adhering the adhesive tape 5 to the pleated end 2b and the outer peripheral surface of the bag body 8, as shown in FIG. Then, as shown in FIG. 9, the inner diameter processing jig 6 is again advanced in the direction of the arrow and inserted into the center hole 4. At this time, the adhesive tape 5 is peeled off from the bag body 8 and turned over.
The adhesive surface faces the inner peripheral surface 1b of the center hole 4.

Finally, as shown in FIG. 10, air is introduced into the bag 8 and the adhesive tape 5 peeled from the bag 8 in the previous step is pasted on the inner circumference of the center hole of the coil 1. Paste on bag body 8
After removing the air from the inside, the processing jig 6 is extracted from the center hole Φ, and a series of photons are ejected.

According to the present invention, an inner diameter processing jig is used, which has a piston-like body that moves in and out of the center hole of the coil, and a bag body that is inflated by fluid pressure on the outer periphery of the piston. After temporarily adhering to the bag with adhesive tape the end of the folded part folded into a pleat on the side end surface of the coil in a state where the bag is at least partially pulled out of the center hole, and then with the bag being contracted. Insert the inner diameter processing jig into the center hole of the coil, and at the time of inserting the inner diameter processing jig, the bag body is also peeled off.
-i Nazo is pasted on the inner circumferential surface of the coil center hole by the expansion operation of the mlI recording bag, thereby fixing the pleated end portion to the inner circumferential surface of the coil center hole.
This makes it possible to mechanize the packaging of metal plate coils, paper rolls, and other coiled products.
This has the effect of saving labor and improving efficiency.

[Brief explanation of the drawing]

Figures 1 to 8 are route diagrams showing the sequential steps of conventional packaging work. Figures 4 to 10 are the sequential steps of pasting the folded end of the wrapping paper to the inner peripheral surface of the center hole of the coil according to the present invention. It is an explanatory route map showing. . ■...Coil 1a...Coil side end surface 1b...Inner peripheral surface of center hole 2...Wrapping paper 2a...Folded portion 2
b...Folded end 4...Center hole 5...Viscous A
Depro...inner diameter processing jig 7...piston-shaped main body 8...bag body 9...air inlet 10...presser ring. 1s1 figure 2

Claims (1)

[Claims] 1 Wrap a wrapping paper wider than the coil width of a metal plate coil or similar coiled product around the outer periphery of the coil, and fold the wrapping paper parts protruding from both ends in the width direction of the coil into pleats against the side end surfaces of the coil. After that, the end of the pleated part is folded into the center hole of the coil and fixed to the inner circumferential surface of the center hole with adhesive tape, and when the coiled product is packaged, it can be moved in and out of the center hole of the coil. Using an inner diameter processing jig, which has a pouch that can be expanded by fluid pressure on the outer periphery of a piston-like body that can be expanded, the folded portion is removed with the inner diameter processing jig at least partially pulled out of the coil center hole. After temporarily adhering the end portion of the bag to the outer peripheral surface of the bag with adhesive tape, the inner diameter processing jig was inserted under pressure inside the coil center hole while the bag was contracted, and the jig was peeled off from the bag at the time of insertion. A coil characterized in that an adhesive tape is attached to the inner circumferential surface of the coil center hole by the expansion operation of the bag body, whereby the end of the pleated portion is attached and fixed to the inner circumferential surface of the coil center hole. How to package products.