JPH03277493A - Roll body cutting device - Google Patents

Abstract

PURPOSE:To minimize a fitting space remarkably by providing a disc like cutter, at its peripheral part, with a blade part having a groove of V-shape in the cross section along the radial direction and a saw tooth part positioned at the bottom part of the groove in the blade part. CONSTITUTION:While rotating at least one of a roll body 1 and a disc like cutter 5, the roll body 1 is cut into round slices by the cutter 5. In this case, the disc like cutter 5 is provided, at its peripheral part, with a blade part 5A with a groove 5b of V-shape in the cross section along the radial direction and a saw tooth part 5B positioned at the bottom part of the groove 5b of the blade part 5A. The cutting groove forming blade part 5A and chip removing saw tooth part 5B are thus integrated to save a fitting space as well as to enable the simultaneous performance of cutting groove formation and chip removal.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for rolling a roll-shaped body, such as a wide semi-finished product such as an adhesive tape or a plastic film, into a final product having a predetermined width. The present invention relates to a cutting device for cutting, and particularly relates to an improvement of a disc-shaped cutting tool for cutting.

[Prior Art] Conventionally, as this type of cutting device, one shown in FIG. 4, for example, is known. According to this, a disc-shaped cutter E is provided on one side of the roll-shaped body A, and a rotatable disc-shaped saw blade F is provided on the other side so as to face the cutter E. is provided.

Therefore, in order to cut the roll-shaped body A into rings, at least one of the roll-shaped body A and the disc-shaped cutter E is rotated (
The cutting edge of the cutter E is moved closer to the axis of the roll-shaped body A while rotating both of them (usually in opposite directions). Further, the rotating saw blade F is gradually inserted into the cutting groove formed in the roll-shaped body A by the cutting tool E in order to remove residues such as chips remaining in the cutting groove.

In this case, when inserting the saw blade F, it is necessary not only to align the blade E and the saw blade F so that they face each other with high precision, but also to adjust the forward and backward direction of the saw blade F to the blade E. It is necessary to match the forward and backward directions with high precision. In this case, particular care must be taken to match the latter advancing and retreating directions. That is, for both the blade E and the saw blade F, angles in at least two directions with respect to the axis of the roll-shaped body A (angles formed with a line orthogonal to the axis) are formed in both forward and backward directions. , and the angles formed with parallel lines) must be adjusted so that they exactly match.

Furthermore, when the saw blade F enters, the installation is done so that the saw blade F does not run out particularly in the plane direction due to the vibration of the stand.
Must be installed firmly.

[Problems to be Solved by the Invention] However, according to the configuration of the prior art, it is necessary to attach the disc-shaped cutter E and the disc-shaped saw blade F to the roll-shaped body A with extremely high precision, which makes the work difficult. Moreover, since it is necessary to provide mounting space for the cutter E and the saw blade F, a large working space must be secured.

Furthermore, when the saw blade F is inserted into the cutting groove by the cutter E, if even a slight blade vibration occurs, for example, as shown in FIG. , fusion parts 62 and the like occur on the cut surface due to friction, making it easy to produce many defective products.

The present invention has been made to solve the problems of the prior art, and it is an object of the present invention to provide a roll-shaped object cutting device that can reduce the installation space and allow easy installation work. purpose.

[Means for Solving the Problems] In order to achieve the above object, the present invention cuts the roll-shaped body into circular slices with the blade while rotating at least one of the roll-shaped body and the disc-shaped blade. In the roll-shaped body cutting device configured as above, the disc-shaped blade includes a blade portion having a V-shaped groove in a cross section along the radial direction, and a sawtooth portion located in the valley of the groove of the blade portion. is formed on the outer periphery.

[Function] The disc-shaped blade has an integral blade part for forming cutting grooves and a sawtooth part for removing chips, so it requires less installation space and can cut without forming cutting grooves. Powder removal is carried out simultaneously, and there is no need for strict adjustment of the position relative to the cutting groove and the direction of approach as in the prior art, and the operation of cutting the roll-shaped body into rings can be completed smoothly and easily.

[Embodiment] Fig. 1 shows an embodiment of the cutting device of the present invention, in which a roll-shaped body 1 is made of a wide sheet-shaped material such as an adhesive tape on a shaft portion 2 such as a paper core tube. Both ends of the shaft portion 2 are supported by a shaft support portion 3 and a rotary chuck 4, respectively, and are freely rotatable in a clockwise direction when viewed from the rotary chuck 4 side of the shaft portion 2. It has become. Further, a disk-shaped cutter 5 is provided on one side (upper part in the figure) of the roll-shaped body 1, and the cutter 5 is rotatable in a counterclockwise direction. Note that the roll-shaped body 1 is movable to the left in the figure by a pressing mechanism (not shown).

FIG. 2 shows details of the disc-shaped cutter 5,
A shaft hole 5a for mounting a rotating shaft is formed in the center, and a blade portion 5A having a V-shaped cross-section groove 5b is formed on the outer periphery of the shaft hole 5a. A sawtooth portion 5B is formed.

Here, the entire cutter 5 is made of high speed tool steel (SKH), for example.
It is integrally formed from blade materials such as steel), ceramic materials, and cemented carbide. Further, the roll-shaped body 1 may be, for example, 200~
When having a diameter of 4oo [mm], the diameter of the cutter 5 is 400 [mm], and the thickness tl of the outer periphery is 10 [mm].
, it is preferable to set the thickness t2 of the central body portion to 7 mm.

Since this embodiment is configured as described above, once the position at which the rotating roll-shaped body 1 is to be cut by the disc-shaped blade 2 is set, the blade 2 is rotated to cut the roll-shaped body 1.
, and a cutting groove is formed in the roll-shaped body 1 by the blade portion 5A.

When forming this cutting groove, chips and the like that remain in the cutting groove are scraped out by the sawtooth portion 5B. Then, when the cutting edge of the blade 2 moves to a predetermined position on the axis side of the roll 1 and the round cutting is completed, the blade 2 is moved back to perform the next round cutting,
The roll-shaped body 1 is moved toward the shaft support portion 3 by 8. FIG. Part plate 7
, 8, and a sawtooth plate 9 sandwiched between the plates 7 and 8.

Each of these plates 7°8.9 has shaft holes 7a and 8a in its center, respectively.

9a is formed, and several mounting holes 7b, 8b, 9b for joining are formed so as to sandwich the shaft holes 7a, 8a, 9a, and a fixing hole is formed in each mounting hole 7b, 8b, 9b. A screw (not shown) is inserted.

When the plates 7, 8, and 9 are assembled, the cutter 6 has a blade portion 6A having a V-shaped groove 6b on its outer periphery and a sawtooth portion 6B in its trough. In addition, when assembling, each plate 7
, 8.9 are temporarily assembled by interposing adhesive between them, and then the mounting hole 7b is removed.

Assembling can be easily performed by inserting screws into 8b and 9b.

The cutlery of this embodiment has the same functions and effects as those of the previous embodiment except that it is composed of a plurality of parts, so a redundant explanation will be omitted.

[Effects of the Invention] As described above, according to the present invention, the roll-shaped body is cut into rings by the roll-shaped body and the disc-shaped blade while at least one of the blades is rotated. In the cutting device for a roll-shaped object, the disc-shaped blade has a blade portion having a V-shaped groove in a cross section along the radial direction, and a sawtooth portion located in the valley of the groove of the blade portion on the outer peripheral portion. This feature allows the member to be placed only on one side of the roll-shaped body, which greatly reduces the installation space. Since this is possible with the use of a member, it is possible to omit the troublesome and strict adjustment of the position and direction of the cutter and the saw blade, which is required in the past, thereby improving work efficiency. Furthermore, the installation is not required to be more robust than necessary, and maintenance is facilitated. Furthermore, since the sawtooth part is located within the groove of the blade part, it is possible to avoid the risk of blade deflection of the sawtooth part, and at least to eliminate the occurrence of defective products due to the sawtooth part.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing one embodiment of the cutting device according to the present invention, Fig. 2 is a sectional view showing one embodiment of the cutter, Fig. 3 is a sectional view showing another embodiment of the cutter, and Fig. 4 is a sectional view showing another embodiment of the cutter. The figure is a plan view showing a conventional cutting device, and FIG. 5 is a perspective view illustrating defective ring-cut products. (Explanation of symbols) 1... Roll-shaped body, 5.6... Disc-shaped cutter, 5A. 6A...blade part, 5B, 6B...serration part, 5b, 6b
...V-shaped groove.

Claims (1)

[Claims] (1) In a roll-shaped body cutting device configured to cut the roll-shaped body into rings with the blade while rotating at least one of the roll-shaped body and the disc-shaped blade, the disc-shaped body The cutter is a roll-shaped body characterized in that a blade portion having a V-shaped groove in cross section along the radial direction and a sawtooth portion located in the valley of the groove of the blade portion are formed on the outer peripheral portion. cutting equipment.