Cutting device

Abstract

To provide a cutting device which can suitably cut a processing object while suppressing enlargement of the device.SOLUTION: An anvil roller 10 of a cutting device 1 includes a cylindrical supporting surface which can rotate around a rotation axis orthogonal to a transportation direction of a processing object that is a belt-like thin plate material to extend in a horizontal direction and support an undersurface of the processing object. A roller cutter 20 includes: a cutter shaft 21 which is arranged above the anvil roller 10 to extend in the horizontal direction and rotate in conjunction with the anvil roller 10; and a cutting blade 22 which stands on the cutter shaft 21 to cut the processing object from an upper surface side while rotating. A rotation axis of the roller cutter 20 is slanted to a rotation axis of the anvil roller 10 when viewed from a vertical direction. The cutting blade 22 stands on a cutter shaft to be in parallel with the rotation axis of the anvil roller 10 at a position contacting with the processing object when viewed from the vertical direction.SELECTED DRAWING: Figure 1

Claims

1. An anvil roller that is rotatable along a rotation axis perpendicular to the conveying direction of the object to be processed, which is a strip-shaped thin plate material, and has a cylindrical support surface that extends horizontally to support the lower surface of the object to be processed, The roller cutter comprises a cutter shaft that extends horizontally above the anvil roller and rotates in conjunction with the anvil roller, and a cutting blade that is erected on the cutter shaft and rotates to cut the object to be processed from the top side, The rotation axis of the roller cutter is inclined with respect to the rotation axis of the anvil roller when viewed from the vertical direction. The cutting edge is erected on the cutter shaft so as to be parallel to the rotation axis of the anvil roller at the position where it contacts the object to be processed when viewed from the vertical direction. The roller cutter is configured such that the cutting edge of the cutting blade at one end in the extension direction of the cutter shaft contacts the object to be processed before the cutting edge of the cutting blade at the other end. When viewed from a vertical direction, the width of the cutting edge is larger on the side of the roller cutter that protrudes in the direction into which the object to be processed is being fed. Cutting device.

2. The anvil roller has a suction hole for sucking the object to be processed near the cutting portion of the object to be processed. The cutting device according to claim 1.

3. The anvil roller has either a flexible and resilient receiving portion or a groove into which the cutting blade enters, which receives the cutting blade that has successively cut the object to be processed within a predetermined range of rotation angle from one end to the other end of the cutter shaft. The cutting device according to claim 1.

4. The roller cutter has an elastic body that can press the object to be processed against the support surface when the cutting blade comes into contact with the object to be processed, near the cutting blade and at least at the end in the extending direction of the cutter shaft. A cutting device according to any one of claims 1 to 3.

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