JP2726113B2 - Tape cutting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cutting device incorporated in a magnetic tape winding device or the like that connects a magnetic tape to a leader tape and winds the tape into a cassette.

[Conventional technology]

A conventional cutting device of this type is generally the one shown in the schematic configuration diagram of FIG. This cutting device has a holding portion 31 attached to a substrate (not shown) and adsorbing the tape T on its support surface 31a by air, and a cutter 32 having a blade portion 32a at a predetermined angle θ with respect to the support surface 31a. Then, the cutter 32 is moved through the groove-shaped cutter passage 31b of the holding portion 31 in the width direction of the tape T (direction of arrow A) parallel to the support surface 31a to cut the tape T.

[Problems to be solved by the invention]

However, in the above conventional example, since the cutter 32 is moved in the width direction of the tape T, the tape T is lifted up when the cutter 32 hits the tape T as shown in the explanatory view of FIG. The tape T may be cut in a wrinkled state. In this case, there is a problem that the cut portion bends or has a waveform. This problem is particularly likely to occur in a tape coated with a magnetic material having high hardness, such as a metal tape.

In the conventional example, as shown in the explanatory view of FIG. 11, only one point of the blade portion 32a of the cutter 32 is a tape T.
In this case, since the cutting is performed only at this one point (point P), the wear of the blade portion 32a at this point is remarkable, and the cutter 32
Had a short life span.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the related art, and an object of the present invention is to provide a tape cutting device that has good cutting performance and a long life.

[Means for solving the problem]

The tape cutting device according to the present invention has a holding portion that holds a long tape in close contact with a support surface, and a blade portion that extends in a direction at a predetermined angle with respect to the support surface of the holding portion,
A cutter for cutting the tape held on the supporting surface by the blade in the width direction thereof, and a cutter provided at a predetermined position of the holding portion and below the cutting position of the tape, and passing through the cutter when cutting the tape. And a cutter driving mechanism for moving the cutter in a direction at a predetermined angle with respect to the support surface from obliquely above the upper surface of the tape when cutting the tape.

(Operation)

In the present invention, the tape held on the support surface of the holding portion, the cutter is moved in a direction from the diagonally above the tape upper surface to the tape upper surface, at a predetermined angle to the support surface. Cut the tape. That is, the blade portion of the cutter hits the tape obliquely from above, moves the cutter passage while pressing the tape against the support surface, and cuts the tape. As described above, according to the present invention, the tape is cut while applying a force in the direction of pressing the tape against the support surface, so that the tape is not lifted up at the time of cutting the tape, and a good cut is performed.

In addition, by moving the cutter in an oblique direction and cutting the tape, the cutter can be pressed against the tape while pulling the blade portion, and the cutting can be improved.

Further, since the tape is cut using a predetermined length of the blade portion of the cutter, the wear of the blade portion is dispersed not at one point but at a predetermined length, and the wear does not concentrate at one point.

〔Example〕

 Hereinafter, the present invention will be described based on the illustrated embodiment.

FIG. 1 is a schematic configuration diagram showing one embodiment of a tape cutting device according to the present invention. The cutting device according to the present embodiment has a blade 2a that adsorbs a long tape T on the supporting surface 1a of the holding unit 1 and extends in a direction that forms a predetermined angle θ with respect to the supporting surface 1a of the holding unit 1. The tape T held on the support surface 1a by the cutter 2 attached to the arm 3 is cut in the width direction. Further, in the holding unit 1, a cutter passage 1b for passing the cutter 2 at the time of cutting the tape T below the cutting position of the tape T is formed in a groove shape as shown in the drawing or by dividing the holding unit 1 into two. It is formed by this. Further, at the time of cutting the tape T, the cutter 2 is moved in a direction B obliquely above the upper surface of the tape T (upper right position in the drawing) toward the upper surface of the tape T and at a predetermined angle with respect to the support surface 1a. The cylinder 4 is provided as a cutter driving mechanism.

FIG. 2 is an explanatory view showing a tape T cutting step in the embodiment of FIG. As shown in the figure, in the present embodiment, the tape T held on the support surface 1a of the holding portion 1 is used.
When the cutter 2 is cut, the cutter 2 is moved in a direction toward the upper surface of the tape T from obliquely above the upper surface of the tape T and at a predetermined angle φ with respect to the support surface. Accordingly, the blade portion 2a of the cutter 2 hits the tape T from obliquely above, and moves the cutter passage 1b while pressing the tape T against the support surface 1a to cut the tape T.

Thus, according to the present embodiment, the tape T is supported on the support surface 1a.
Since the tape can be cut while applying a force in the direction of pressing the tape T, when the tape T is cut, the tape T does not rise as shown in FIG. Therefore, the tape T can be cut satisfactorily without wrinkling, so that the cut portion of the tape T can be formed in a good shape without bending or waveform.

In addition, by moving the cutter 2 in the oblique direction B, as shown in the explanatory view of FIG. 3, the blade 2a can be pressed against the tape T while being pulled, so that the actual blade angle is merely a push. It becomes sharper than in the case of patch cutting. Therefore, the cutting becomes good, which can also contribute to making the shape of the cut portion good.

Further, in this embodiment, as shown in FIG. 3, the tape T is formed by using a predetermined length 1 of the blade portion 2a of the cutter 2.
As shown in FIG. 11, the wear of the blade portion 2a is not concentrated at one point, and the wear can be dispersed over the predetermined length l, so that the life of the cutter 2a can be extended. Can be. For this reason, the present apparatus is sufficiently applicable to cutting a tape coated with a magnetic material having high hardness, such as a metal tape such as a DAT tape.

FIG. 4 is a schematic configuration diagram showing another embodiment of the present invention. 2, the same or corresponding components as those in the embodiment of FIG. 1 are denoted by the same reference numerals. In this embodiment, the driving mechanism of the cutter 2 including an arm, a cylinder, etc. This is different from the embodiment. That is, in this embodiment, the cutter 2 is provided on an arm 6 that can pivot about the fulcrum 5, and the end of the arm 6 opposite to the cutter 2 is pulled up by a cylinder 7 in the upward direction in FIG. Is turned counterclockwise, and the cutter 2 is pressed against the tape T from diagonally above. The configuration and operation other than those described above are the same as those in the embodiment of FIG.

FIG. 5 is a schematic configuration diagram showing still another embodiment of the present invention. 2, the same or corresponding components as those of the embodiment shown in FIG. 1 are denoted by the same reference numerals. In this embodiment, the driving mechanism of the cutter 2 is different from that of the embodiment shown in FIG. That is, in this embodiment, the cutter 2 is provided on a plate-like arm 8, and the arm 8 is provided with a slot 9 extending in a square shape and a slot 10 extending in a straight line. Guide pins 11, 12 which are respectively fixed are inserted into the elongated holes 9, 10 of the arm 8. Therefore, the tape T
When the cylinder 13 pushes the end of the arm 8 on the side without the cutter 2 in the direction C during cutting, the arm 8 is guided by the long holes 9 and 10 and moves. To cut the tape T. Since the configuration and operation other than those described above are the same as those of the embodiment of FIG. 1, their description will be omitted.

In this embodiment, for example, in a magnetic tape winding device, as shown in FIG. 5, the arm 8 is provided so as to extend perpendicularly to the surface of the substrate 14, so that the above-mentioned FIGS. The occupied area of the substrate 14 (the substrate
There is an advantage that when viewed from the direction D, the area occupied by the structure of the cutting device may be small.

FIG. 6 is a schematic configuration diagram showing still another embodiment of the present invention. 5, the same or corresponding components as those in the embodiment of FIG. 5 are denoted by the same reference numerals. In this embodiment, the shape of a long hole 10 is different from that of FIG. Therefore, the trajectory when the cutter 2 is moved is different from the case of FIG. The configuration and operation other than those described above are the same as those of the embodiment of FIG. 5, and thus the description thereof is omitted.

FIG. 7 is a schematic configuration diagram showing still another embodiment of the present invention. 5, the same or corresponding components as those of the embodiment of FIG. 5 will be denoted by the same reference numerals. In this embodiment, a roller 17 rotating along an inner surface of a guide 16 is provided on a side surface of an arm 15. 18 is different from the embodiment of FIG. Therefore, the arm 15 moves according to the inner surface shape of the guide 16, and thus the cutter 2 can move in the oblique direction.
The configuration and operation other than those described above are the same as those of the embodiment of FIG. 5, and thus the description thereof is omitted.

8 (a) and 8 (b) are a schematic configuration diagram and a schematic perspective view showing still another embodiment of the present invention. In the figure, components that are the same as or correspond to those in the embodiment of FIG. 5 are given the same reference numerals and described. In this embodiment, a guide member is provided so that an arm 19 provided with the cutter 2 can be moved in the C direction.
The support 21 fixed to the guide member 20 is inserted into a bearing (not shown) so as to be rotatable in the E direction.
The guide member 20 is pulled upward by a spring 22. The arm 19 has a guide provided on the upper side.
A roller 24 is provided which rotates in contact with the roller 23. Therefore, in this embodiment, when the arm 19 is moved in the direction C by the cylinder 13, the arm 19 moves obliquely downward while drawing a locus determined by the roller 24 along the guide 23. The configuration and operation other than those described above are the same as those of the embodiment of FIG. 5, and thus the description thereof is omitted.

Note that the present invention is not limited to the above-described six types of embodiments, and may have another configuration in which the cutter 2 is pressed against the tape T from an obliquely upward direction to cut the tape T.

〔The invention's effect〕

As described above, according to the present invention, since the tape does not rise, the tape can be cut well,
In addition, by applying a cutter to the tape while pulling it, the sharp edge angle can be sharpened, so that the cutting becomes good, and the shape of the cut portion can be made good.
Further, since the tape can be cut using a predetermined length of the blade portion of the cutter, the wear of the blade portion is not concentrated at one point, and the life of the cutter can be extremely extended.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing one embodiment of a tape cutting device according to the present invention, FIG. 2 is an explanatory diagram showing a tape T cutting step in the embodiment of FIG. 1, and FIG. FIGS. 4 to 7 are schematic structural views according to another embodiment, and FIGS. 8 (a) and 8 (b) are schematic structural views according to another embodiment. FIG. 9 is a schematic configuration diagram of a conventional tape cutting device, FIG. 10 is an explanatory diagram for explaining a problem of tape lifting in a conventional example, and FIG. 11 is a problem of cutter wear in a conventional example. FIG. 3 is an explanatory diagram for explaining the method. 1 ... Holder, 1a ... Support surface, 1b ... Cutter passage, 2 ... Cutter, 2a ... Blade, 3, 6, 8, 15, 19 ... Arm, 4, 7, 13 ... Cylinder , 9,10 ... Long hole, 11,12 ... Guide pin, T ... Tape.

Claims (1)

(57) [Claims] 1. A holding portion for holding a long tape in close contact with a support surface, and a blade portion extending in a direction at a predetermined angle with respect to the support surface of the holding portion. A cutter that cuts the tape held on the support surface in the width direction thereof, a cutter passage that is provided at a predetermined position of the holding portion and below the cutting position of the tape, and passes the cutter when cutting the tape, A tape cutting device, comprising: a cutter driving mechanism for moving the cutter in a direction forming a predetermined angle with respect to the support surface from obliquely above the upper surface of the tape when cutting the tape.