JPS5817014B2 - Fukugo Tape No Seizouhouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a composite tape in which a synthetic resin tape is bonded to an aluminum tape by heat fusion.

Among composite tapes, especially the tape shown in Figure 1,
That is, a synthetic resin tape 3 which is wider than this tape is adhered to the surface of the aluminum tape 2, and the protruding side edge of the synthetic resin tape is folded back and adhered to the back side of the aluminum tape. When manufacturing composite tapes continuously, the protruding side edge of the second tape is automatically folded back to the back side of the first tape, and this
It must be pressed onto the tape.

Conventionally, as a folding method, a method using a former has been adopted in which the cross-sectional shape gradually converges to the final cross-sectional shape of the composite tape as the tape advances.

However, in this conventional method, friction and static electricity occur between the second tape and the inner wall of the molding machine.
The second tape has the disadvantage that wrinkles tend to occur.

This invention was invented in order to eliminate the above-mentioned drawbacks, and its purpose is to ensure that the protruding side edges of the synthetic resin tape that protrude from the side edges of this tape are continuously attached to the back side of the aluminum tape. An object of the present invention is to provide a method for manufacturing a composite tape that can be folded back.

Next, the present invention will be explained in detail using illustrated examples.

FIG. 2 shows an embodiment of the present invention, in which an aluminum tape 2 is heated by a heating roll 1 after being sent out from an aluminum tape supply device (not shown), and is heated to an extremely thin layer (for example, 20 microns). A synthetic resin tape 3 having a width of 100 microns) and wider than the aluminum tape is sent to a pressure roll 4, and the synthetic resin tape 3 is laminated on one side of the aluminum tape 2 and heat-sealed.

Next, the protruding side edges of the synthetic resin tape 3 protruding from the side edges of the aluminum tape 2 are folded back and fused to the back side of the aluminum tape by a folding roll 5.

As shown in FIGS. 3 to 8, the folding roll 5 is made of a dog roll with a mass coefficient between it and a synthetic resin tape, such as a truncated cone-shaped rubber, for example.
It is rotatably supported on a fixed support shaft 6 with its large diameter portion facing the center line of the tape.

At this time, the horizontal inclination angle α of the rotational axis XX of the roll and the height h of the roll are determined so that one ridgeline of the roll contacts the folded portions of the aluminum tape and the synthetic resin tape in parallel.

Furthermore, the roll is supported such that the angle β between the rotational axis XX of the roll and the tape traveling direction is 90 degrees or more.

Next, the operation of this invention will be explained.

A heated aluminum tape 2 and a synthetic resin tape 3 having a width wider than the aluminum tape are laminated and successively fed to a pressure roll 4, whereby the synthetic resin tape is thermally fused to the surface of the aluminum tape.

As these tapes approach the folding roll 5, the protruding side edge 3' of the synthetic resin tape 3, which protrudes from the side edge of the aluminum tape 2, is pulled by the folding roll 5 and gradually moves toward the back side of the aluminum tape. get up.

When it eventually reaches the folding roll 5, the protruding side edge 3' of the synthetic resin tape 3 is completely folded back onto the back surface of the aluminum tape by the roll and is pressed into contact therewith.

At this time, the shape of the folding roll and the state in which it is supported on the fixed support shaft 6 are truncated conical as described above, and its rotation axis X-X forms an inclination of 90 degrees or more with respect to the tape traveling direction. As shown in Figure 9, the speed (1) at which the synthetic resin tape 3 is drawn in at the tip of the roll is faster than the speed (2) at which it is drawn in at the base end of the roll, and V in the tape traveling direction and in the tape centerline direction. and V
2 minute speeds V1 v, Vlh and V2v, V2h
Since Vlv>V2v and ■1h>■2h, respectively, the protruding side edge of the synthetic resin tape is actively stretched in the direction of the center line of the aluminum tape by the rotation of the roll.

The other projecting edge 3'' is also folded back in the same way.

Depending on the relative relationship between the width of the aluminum tape and the width of the synthetic resin tape, as shown in FIG. 10, a composite tape can also be produced by folding the synthetic resin tape around only one aluminum side edge.

In this invention, an extremely thin synthetic resin tape is adhered to the surface of a running heated aluminum tape, and the protruding side edge of the synthetic resin tape protrudes from the side edge of the aluminum tape so that the axis of rotation is in the tape traveling direction. Since it is configured to be folded back onto the back side of the aluminum tape using a single roll in the shape of a cone or truncated cone that is tilted at an angle of 90 degrees or more, the protruding side edge of the synthetic resin tape can be easily folded compared to a cylindrical roll. It has the effect of being able to actively stretch the aluminum tape toward its centerline while folding it back reliably.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of a composite tape manufactured by implementing the present invention, FIG. 2 is a schematic side view showing a state in which the composite tape is manufactured by implementing this invention, and FIG. Plan views of main parts, Figures 4 to 8 are A in Figure 3.
-A' sectional view to E-E' sectional view, FIG. 9 is an explanatory diagram showing the principle of this invention, and FIG. 10 is a cross-sectional front view showing an example of another composite tape manufactured by implementing this invention. be. In the figure, 1 is a heating roll, 2 is an aluminum tape, 3 is a synthetic resin tape, 4 is a pressure roll, 5 is a folding roll, and 6 is a fixed support shaft.

Claims (1)

[Claims] 1. After laminating an extremely thin synthetic resin tape on the surface of a running heated aluminum tape so that at least one side edge protrudes from the side edge of the aluminum tape, the protruding side edge of the synthetic resin tape is laminated. In a method for producing a composite tape by folding and adhering an aluminum tape to the back surface, the above-described process is performed using only a conical or truncated conical folding roll 5 whose axis of rotation is inclined at an angle of 90 degrees or more with respect to the tape's traveling direction. A method for manufacturing a composite tape of an aluminum tape and a synthetic resin tape, characterized in that the protruding side edge 3' of the synthetic resin tape 3 is folded back with a masatsuka and pressed against the back surface of the aluminum tape 2.