JPH03264471A - Automatic folding method for adhesive tape end part - Google Patents

Abstract

PURPOSE:To ensure the folded part of an adhesive tape end part by fixing a cut adhesive tape on a placing base by vacuum suction, then bringing two pins to be the folding center into contact with the adhesive tape, and folding the tape end part by a pressing roller. CONSTITUTION:An adhesive tape 1 is placed, with its adhesive face on top, on a tape placing base 2 and fixed being sucked by vacuum suction holes 3. The tape placing base 2 is provided with a groove part slightly larger than the width of the adhesive tape 1, and a part to be folded passes this groove. Two pins 4 are provided movablly in the adhesive tape width direction, and the distance between two pins 4 is set to be smaller than the width of the adhesive tape 1 in the fixed state. When a roller 5 is moved to D along a locus, the non-adhesive face side of the adhesive tape 1 is pushed by the roller 5, so that the adhesive face side is adhered to the pins 4 and folded at the pins 4 as the folding center. The pins 4 are then moved mutually so as to be widened larger than the width of the adhesive tape 1, and adhesion is removed. The vacuum suction is released, and the adhesive tape 1 is pulled in the direction of an arrow mark E and crushed by the roller 5 to form a folded part.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method for automatically folding an end of an adhesive tape.

[Prior art] As shown in Figure 3, the conventional method for automatically folding the end of an adhesive tape involves fixing the adhesive tape by vacuum suction or the like without directly touching the adhesive surface of the tape, and then folding it back. .

[Problem to be Solved by the Invention J] However, in the prior art described above, when the adhesive tape is folded back, the tape does not bend between the vacuum suction hole and the roller, and the third
As shown by the dotted line in the figure, there was a problem in that the adhesive tape peeled off from the suction.

[Means for Solving the Problems] The method of automatically folding the end of an adhesive tape according to the present invention is to place a cut adhesive tape on a tape holder having a groove slightly wider than the tape width and fix it by vacuum suction. The adhesive tape is characterized in that two pins that move in the direction are brought into contact with the adhesive tape to serve as the center of folding, the ends of the adhesive tape are pressed, the tape is folded back with a roller, the pins are removed, and the tape is crushed while being crushed with a wax arm.

[Example] Figure 1 is a sketch showing a method for automatically folding back the end of an adhesive tape in an example of the present invention.
is fixed with the adhesive side facing up and the non-adhesive side facing the tape holder 2 by suction through the vacuum suction holes 3 in the tape holder 2. Further, the tape holder 2 has a groove portion slightly wider than the width of the adhesive tape 1. The folded portion of the adhesive tape 1 passes through this groove, and the end portion is cut off leaving only the length necessary for folding.

As shown in FIG. 1, the two pins 4 protrude into the groove from the side holes of the tape stand 2.

In addition, the pin 4 can move in the width direction of the adhesive tape,
When the adhesive tape l is fixed to the tape stand 2, the distance between the two pins is smaller than the width of the adhesive tape l.

The roller 5 can move from the position shown in the figure until point B reaches point D along the locus C, and can freely rotate about the line A-A.

In this state, when the roller 5 moves until the point B of the roller 5 reaches the point D along the trajectory C, the non-adhesive side of the adhesive tape 1 is pushed by the roller 5, and the adhesive side comes into contact with the pin 4 and adheres to the pin 4. is the center of the fold and is folded back. Further, the adhesive surfaces of the portion sandwiched between the tape stand 2 and the roller 5 come into contact with each other and are bonded together.

FIG. 2 is a sketch after the roller 5 in FIG. 1 has been moved. The adhesive tape 1 is fixed by vacuum suction and by being sandwiched between the tape stand 2 and the roller 5.

In this state, when the two pins 4 are moved in the direction of E until the distance between the two pins becomes wider than the width of the adhesive tape 1, the adhesive tape L is adhered to the two pins 4, so from both sides As it is pulled, the adhesive on pin 4 on one side is peeled off, so it tries to move as it is pulled on the other pin, but
The sides of the adhesive tape l get caught on the sides of the groove of the tape stand 2 and are left behind. Therefore, the adhesive between the adhesive tape 1 and the pin 4 is peeled off, and the two are separated.

In this state, when the adhesive tape 1 is released from being fixed by vacuum suction and the adhesive tape 1 is pulled in the direction of the arrow E and moved, the adhesive tape 1 with its adhesive surfaces facing each other is placed on the tape holder 2 by the roller 5. Since the tape is pressed, the adhesive surfaces come into contact with each other while passing between the roller 5 and the two tape holders, and are bonded together, allowing the ends to be folded back.

Further, since the tape 5 can freely rotate around the A-A line, there is little resistance when the adhesive tape 11 moves.

【Effect of the invention〕

As described above, according to the method for automatically folding back an end of an adhesive tape according to the present invention, a folded portion can be formed at an end of an adhesive tape.

This folding can be used when removing the adhesive tape once applied.

Adhesive tape tape stand Hole for vacuum suction pin roller that's all

Claims (1)

[Claims] Place the cut adhesive tape on a tape stand with a groove slightly wider than the tape width, fix it by vacuum suction, bring the two pins that move in the width direction of the adhesive tape into contact with the adhesive tape, use it as the center of the fold, and press the end of the adhesive tape. An automatic folding method for the end of an adhesive tape, which is characterized by bringing the folded adhesive sides into contact with each other using a roller, removing a pin, and applying the adhesive while crushing the tape with a roller.