JPH0430995A - Tape slitting device - Google Patents

Abstract

PURPOSE:To make the position forming a slit, etc., properly changeable in accordance with a tape width, by moving the lower shaft fitted with a lower edge horizontally and freely over a base together with a lower block. CONSTITUTION:A lower shaft 8 fitted with a lower edge 14 is moved horizontally and freely over a base 1 together with a lower block 2. Moreover, when the upper block 3 fitted with an upper edge 23 which is bitten with this lower edge 14 is pushed down by the eccentric cam 20 pushing vertically via the operation mean of a lever, etc., the upper wedge 25 provided on this upper block 3 pushes the lower wedge 25 in the horizontal direction while press-fitting to the wedge 16 fitted to the lower shaft 8. The biting positions in the vertical and horizontal directions of the upper and lower edges 14, 23 are thus freely adjusted.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention involves cutting a tape at a predetermined position to create a slit.
This invention relates to a tape slitting device that can insert slots.

[Prior Art] In the past, in order to meet various purposes, for example, a running tape was cut at a predetermined position or width, or perforations, that is, intermittent slit-like holes were punched at a predetermined position or width. A tape slitting device has been developed that can be installed.

In such a tape slitting device, for example, a pair of rotary round blades is installed to engage the road surface on which the tape travels from above and below, and the tape is cut while rotating these rotary round blades. There are known structures in which the holes are drilled intermittently or intermittently.

[Problem to be solved] By the way, in such a tape slitting device,
If the position of the pair of rotary blades installed above and below is even slightly shifted, the cutting ability will be greatly reduced, and there is a risk that the tape will not be cut or perforations cannot be made, so adjusting the position of these rotary blades is especially important. The double-edged blades are usually fixed integrally to a base or the like.

By the way, in order to maximize the cutting ability depending on the thickness of the tape to be perforated, etc., the occlusal position of the rotary blade in the vertical and horizontal directions must be changed and adjusted as appropriate to maintain the optimal occlusal state. However, if the rotary blade is mounted in an immovable state as mentioned above, there is a risk of poor cutting, which is a problem.

Furthermore, among such tape slitting devices, it is known that, for example, a pair of similar configurations are provided on the left and right sides in order to pierce both edges of the tape. The slitting device has a structure in which the left and right devices are simply moved horizontally according to the width of the tape, and no consideration is given to finely adjusting the vertical position of the rotary blade at the moving position.

Therefore, in view of the above-mentioned conventional drawbacks, the present invention allows the main body portion to be moved freely in the horizontal direction, and
It is an object of the present invention to provide a tape slitting device that can freely move and adjust the occlusal position of a rotary round blade in the vertical and horizontal directions.

[Means for Solving the Problems] That is, the tape slitting device of the present invention includes a base provided with a motor, a lower block body that slides horizontally with respect to the base, and a rotating part that rotates with respect to the lower block body. A spline shaft that is freely and horizontally slidable and has a first gear fixed to one end, and a second gear that meshes with the first gear that rotates together with the spline shaft is fixed to one end and circularly attached to the other end. A lower shaft to which a plate-shaped lower blade is fixed and rotatably supported with respect to the lower block body so as to be able to move slightly in the horizontal direction, and a lower shaft rotatably mounted via a bearing between the lower shafts. A lower wedge that moves horizontally together with the lower block body, an upper block body that slides vertically while being guided by guide means provided on the lower block body, and a third gear that meshes with the second gear of the lower shaft are fixed to one end. At the same time, a disk-shaped upper blade that engages with the lower blade is fixed to the other end, and an upper shaft is rotatably supported with respect to the upper block body, and an upper shaft is rotatably supported with respect to the lower block body. An eccentric cam is provided on the upper block body that moves up and down according to the amount of eccentricity of the eccentric cam, and the eccentric cam is slidably engaged with the upper block body. It is characterized by having an upper wedge that pushes the wedge in the horizontal direction.

[Function] In the tape slitting device of the present invention, the lower shaft to which the lower blade is attached can freely move horizontally with respect to the base together with the lower block body. Further, in the tape slitting device of the present invention, when the upper block body is attached with the upper blade that engages the lower blade by an eccentric cam that is pushed up and down through an operating means such as a lever, the upper block body is pressed down. The upper wedge provided on the lower shaft presses against the wedge attached to the lower shaft and pushes the lower wedge horizontally, thereby allowing the vertical and horizontal occlusal positions of the upper and lower blades to be freely adjusted.

[Embodiment] An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a tape slitting device according to the present invention, and this tape slitting device is composed of a base 1, a lower block body 2, and an upper block body 3.

The base 1 is fixed to a floor surface 4, and houses a motor 5 that rotates an upper blade and a lower blade, which will be described later.

The lower block body 2 has a U-shaped cross section and a guide rail 6.
The spline shaft 7 is provided on the lower side, and the lower shaft 8 is provided on the intermediate side. The spline shaft 7 is slidable and rotatable in the horizontal direction (X direction) with respect to the lower block body 2 so that the positional relationship in the horizontal direction (X direction) with respect to the base 1 is immovable. is supported,
A pulley 11 and a first gear ]2(!: are fixed to one end of the shaft. A second gear 13 that meshes with the second gear 12 is fixed to one end, and a lower blade 14 in the shape of a circular disc is fixed to the other end, and is rotatably supported with slight movement relative to the lower block body 2. In addition, a lower wedge 16 is attached to the lower shaft 8 through a bearing 15 at the intermediate portion thereof in a fixed state in the axial direction.The lower wedge 16 has one end surface formed at a constant angle. It has an inclined taper surface 16a, and is always biased leftward by an elastic force by a coil spring 17 interposed between the other end surface and the lower block body 2.The lower block of this embodiment A pair of left and right bodies 2 are provided on the base 1, and depending on the width dimension of the tape 26 on which perforations are to be formed, the rain block body 2 is moved by a moving means not shown, and the distance between these bodies is adjusted appropriately. In addition, each lower block body 2 can be fixed to the base 1 at a predetermined position by a locking means (not shown).

The upper block body 3 can slide a certain distance in the vertical direction by guide means such as a guide rail (concave path) provided on the lower block body 2. In this embodiment, there is a gap between the upper block body 2 and the lower block body 2. The lower block body 2 is always pressed downward by an elastic force by the interposed spring 18.
It is suspended from the upper bracket (19). That is, this upper block body 3 has a cam hole 3a in the upper part as shown in FIG.
is formed, and an eccentric cam 2 is formed in the cam hole 3a.
As shown in FIG. direction). In addition,
Since this upper block body 3 is always pressed down by the spring 18, the cam hole 3a
The uppermost point of the holder is pressed and locked. and,
This upper block body 3 has a second gear 13 of the lower shaft 8.
A third gear 22 that meshes with and rotates is fixed to one end, and
An upper shaft 24 is rotatably attached to the other end of which is fixed a round-shaped lower blade 23 that engages the lower blade 14 in a proper state. In addition, this upper shaft 24 is loosely inserted into the hole 2a of the lower block body 2 with a certain margin so that it moves in the vertical direction (Z direction) in accordance with the vertical movement of the upper block body 3. There is.

Furthermore, this upper block body 3 has a
When the upper wedge 25 moves up and down according to the amount of eccentricity due to the rotational movement of the eccentric cam 20, the upper wedge 25 presses against the tapered surface 16a of the lower wedge 16 and pushes the lower wedge 16 in the horizontal direction (X direction). It is provided. In addition, this upper wedge 2
As shown in FIG. 4, the shaft 5 is formed into an inverted U-shape branched into two left and right halves so that a lower shaft 8 rotatably passes through the center thereof.

[Effects] As explained above, according to the tape slitting device according to the present invention, the lower shaft to which the lower blade is attached can freely move horizontally with respect to the base together with the lower block body. The position where the slit etc. are formed can be changed as appropriate depending on the tape width.

Further, according to the tape slitting device according to the present invention, when the upper block body is moved up and down by rotating the eccentric cam, the upper wedge provided on the upper block body moves up and down in the same manner. The lower shaft, which is attached to the lower wedge that presses against the upper wedge, is driven in the horizontal direction, and the vertical position of the upper block body with respect to the lower block body, in other words, the vertical position of the upper blade with respect to the lower blade,
The horizontal position of the lower block body with respect to the upper block body, in other words, the horizontal position of the lower blade with respect to the upper blade, can be finely adjusted at the same time.

[Brief explanation of drawings]

FIG. 1 is a tape slitting device according to the present invention, FIG. 2 is a cross-sectional view taken along the line II in FIG. 1, and FIG. 3 is a cross-sectional view taken along the arrow II to explain the action of the eccentric cam shown in FIG. , FIG. 4 is a sectional view taken along the line If-I in FIG. 1. DESCRIPTION OF SYMBOLS 1... Base, 2... Lower block body, 3... Upper block body, 5... Motor, 7... Spline shaft, 8...
...lower shaft, 12...first gear, 13...second
Gear, 14... Lower blade, 15... Bearing, 16... Lower wedge, 20... Eccentric cam, 22... Third gear, 2
3... Upper blade, 24... Upper shaft, 25... Upper wedge, 26... Tape.

Claims (1)

[Claims] 1. A base (1) equipped with a motor (5), a lower block body (2) that slides horizontally with respect to the base (1), and a lower block body (2) that slides horizontally with respect to the base (1). ) and a spline shaft (7) which is freely rotatable and horizontally slidable and has a first gear (12) fixed to one end;
A second gear (13) that meshes with the first gear (12) that rotates with ) is fixed to one end, and a disc-shaped lower blade (
14) and is rotatably supported with respect to the lower block body (2) so as to be able to move slightly in the horizontal direction.
and a lower wedge (16) which is rotatably attached to the middle of the lower shaft (8) via a bearing (15) and moves horizontally together with the lower shaft (8), and the lower block body (2).
), and a third gear (22) that meshes with the second gear (13) of the lower shaft (8) is fixed to one end. an upper shaft (24) having a disk-shaped upper blade (23) which engages with the lower blade (14) secured to the other end thereof and rotatably supported with respect to the upper block body (3); an eccentric cam (20) rotatably supported on the body (2) and slidably engaged with the upper block body (3); and an upper wedge (25) that is provided on the upper block body (3) that moves up and down with the movement of the lower wedge (25) and pushes the lower wedge (16) in the horizontal direction while being in pressure contact with the tapered surface of the lower wedge (16). A tape slitting device featuring: