JP2001176244A - Device for cutting tape to standard length - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for cutting a tape to a standard size which is capable of cutting the tape at a specified length without the occurrence of tape crops and without the variation of the tape. SOLUTION: The tape T delivered from a pancake 1 is attracted to an outer peripheral surface of an intermittent rotating body 10 of a regular prism shape and is transferred to a cutting station S1 by the intermittent rotation of this intermittent rotating body 10. In this cutting station S1, the tape held attracted by this intermittent rotating body 10 is cut to the specified length by a cutter 20 and is transferred to a retransfer position S2. In the retransfer position S2, the tape after cutting is attracted and transferred by a tape transporting head 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cutting apparatus for cutting a tape to a predetermined size, and more particularly to a tape cutting apparatus suitable for cutting a leader tape of an audio tape or a video tape.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional tape standard-size cutting device, in which 1 is a pancake in which a tape T is wound into a roll,
Is a pair of grippers for holding the tape, 3 is a tape transport head, and 4 is cutters on both sides of the tape transport head.

In the conventional apparatus shown in FIG. 3, after the tape T is pulled out by a fixed length with the right gripper 2, the grippers 2 on both sides are closed and the tape is sandwiched on both sides. Then, the tape transport head 3 puts the tape in a state of sucking the tape under a negative pressure,
The tape is cut by the cutters 4 on both sides.

[0004]

By the way, according to the conventional apparatus shown in FIG. 3, the tape T at the position outside the cutter 4 is gripped by the gripper 2, so that after cutting by the cutter 4, wasteful tape scraps are generated. In addition, the processing of the offcuts becomes a problem. Also,
If the tape between the grippers 2 on both sides is loose, the length of the cut tape also varies.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a fixed-length tape cutting apparatus capable of cutting a tape at a constant length without generation of tape scraps.

[0006] Other objects and novel features of the present invention will be clarified in embodiments described later.

[0007]

Means for Solving the Problems To achieve the above object, a tape standard-size cutting device according to the present invention absorbs a tape fed from pancake on an outer peripheral surface of a regular polygonal columnar intermittent rotating body, The intermittent rotating body is transferred to a cutting station by intermittent rotation. At the cutting station, the tape in the sucked state by the intermittent rotating body is cut into a fixed length by a cutter and transferred to a transfer position. At the transfer position, the tape is conveyed. The head is configured to suck and transfer the tape after cutting.

In the above-mentioned tape fixed-size cutting apparatus, it is preferable that both ends of the tape sucked and held by the tape transport head are fixed to a pair of hubs by clamps.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tape cutting device according to an embodiment of the present invention.

FIG. 1 shows an embodiment of a tape standard-size cutting apparatus according to the present invention. FIG. 1 is a front view of main components, and FIG. 2 is a plan view for explaining processing of the tape after cutting.

In the front view of FIG. 1, reference numeral 10 denotes a regular polygonal column-shaped intermittent rotating body capable of adsorbing (vacuum suction) the tape on the outer peripheral surface, and here has a regular octagonal column shape. Each outer peripheral surface is a flat rectangular surface, and sucks and holds a tape T (here, an example of a leader tape of a cassette tape) pulled out from the pancake 1 by vacuum suction. The pancake 1 is formed by winding a long tape, and the tape T is pulled out while maintaining a required tension.

Around the intermittent rotator 10, a cutting station S1 and thereafter a transfer station S2 are arranged. The cutter 20 is arranged at the cutting station S1 so as to be able to move forward and backward. At the corners of the intermittent rotator 10 (boundaries between the rectangular surfaces), concave grooves 11 that avoid the tip of the cutter 20 are formed. In the transfer station S2, a tape transport head 30 capable of holding the tape T by suction (vacuum suction) is disposed.

In the plan view of FIG. 2, the hub 40 of the cassette tape is held at regular intervals by holding means (not shown). In this case, the tape transport head 30 is turned upward (vertical) as shown in the front view of FIG. 1, but is rotated 90 degrees and becomes horizontal (horizontal) as shown in the plan view of FIG. The tape T held by the head 30 is set so that both ends are in close proximity to the notch 41 of the hub 40. Hubs 40 are provided on both sides of the tape transport head 30.
A pusher 43 for holding the clamp 42 for stopping the tape T and fitting the clamp 42 to the notch 41 of the hub 40 is disposed.

The overall operation of this embodiment is as follows. The tape T fed out from the pancake 1 is sucked on the outer peripheral surface of the regular polygonal column-shaped intermittent rotating body 10, and is transferred to the cutting station S1 by intermittent rotation of the intermittent rotating body 10.
At the cutting station, the tape T in the sucked state is cut by the cutter 20 by the intermittent rotating body 10. The tape T is cut to a fixed length by executing the cutting operation by the cutter 20 every time the intermittent rotating body 10 rotates intermittently at the same angle. And
The tape is transferred to the transfer position S2 by the intermittent rotating body 10, and at the transfer position S2, the cut tape is sucked by the tape transport head 30 (the vacuum suction of the head 30 is turned on, and the rotating body 10 is turned off).
Vacuum suction off), and FIG.
Rotate 90 degrees to the sideways state in the plan view of FIG.

As shown in FIG. 2, both ends of the cut tape T held by the tape transport head 30 are closely opposed to the hub 40, and the clamp 42 is inserted into the cutout 41 of the hub by the pusher 43 so that the tape can be inserted. Both ends are fixed to the hub 40.

According to this embodiment, the following effects can be obtained.

(1) Since the tape T is cut by the cutter 20 while adsorbing the regular polygonal columnar intermittent rotator 10, there is no generation of tape scraps. For this reason, it is economical and can solve the problem of the processing of the offcuts.

(2) Since the tape T is transported while being vacuum-sucked on the outer peripheral surface of the regular polygonal columnar intermittent rotating body 10, the tape transport is assured.

(3) The tape T is cut by the cutter 20 while adsorbing the tape T on the outer peripheral surface of the intermittent rotator 10, so that variations in the tape length can be reduced.

(4) The delivery operation of the tape after cutting is as follows.
This is a transfer operation between the plane of the intermittent rotating body 10 and the plane of the tip of the tape transport head 30, and the tape transfer after cutting is assured.

Although the case where the leader tape of a cassette tape is cut to a fixed length has been exemplified, the present invention is applicable to other uses for cutting various long tapes.

Although the embodiments of the present invention have been described above, it is obvious to those skilled in the art that the present invention is not limited to the embodiments and that various modifications and changes can be made within the scope of the claims. There will be.

[0023]

As described above, the tape constant-length cutting device according to the present invention absorbs the tape fed out of the pancake on the outer peripheral surface of the regular polygonal columnar intermittent rotator to form the intermittent rotator. It is transferred to a cutting station by intermittent rotation, and at this cutting station, the tape in the sucked state is cut by a cutter to a fixed length by the intermittent rotating body and transferred to a transfer position. Since the tape is adsorbed, there is no generation of tape scraps due to the cutting operation of the cutter, and it is economical and can solve the problem of processing scraps. Further, the tape is transported reliably, and the tape is cut while adsorbing the tape on the plane of the intermittent rotating body, so that variations in the length of the tape after cutting can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view of main components of an embodiment of a tape fixed length cutting device according to the present invention.

FIG. 2 is a plan view illustrating processing of a tape after cutting in the embodiment.

FIG. 3 is a front view of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pancake 2 Gripper 3,30 Tape transport head 4,20 Cutter 10 Intermittent rotating body 11 Concave groove 40 Hub 41 Notch part 42 Clamp 43 Pusher

Claims (2)

[Claims] 1. An intermittent rotator that intercepts a tape fed from a pancake on an outer peripheral surface of a regular polygonal columnar intermittent rotator and transfers the tape to a cutting station by intermittent rotation of the intermittent rotator. A tape cutting device which cuts a tape in a sucked state to a fixed length by a cutter and transfers the tape to a transfer position, and at the transfer position, sucks and transfers the cut tape by a tape transport head. . 2. The tape cutting apparatus according to claim 1, wherein both ends of the tape sucked and held by the tape transport head are fixed to a pair of hubs by clamps.