Cutting apparatus
Provided is a cutting apparatus including: an upper knife; a lower knife fixed at a predetermined position; a fixing member to which the upper knife is fixed; a fixing mechanism configured to detachably fix the upper knife at a fixing position of the fixing member; and a motion mechanism configured to move the fixing member between a non-cutting position and a cutting position in the vertical direction to perform switching between a non-cutting state where a first tip of the upper knife is spaced apart in the vertical direction from a second tip of the lower knife and a cutting state where the first tip passed by the second tip, and the fixing mechanism can adjust the fixing position in a first direction that is orthogonal to the vertical direction and in which the first tip and the second tip come close to or move away from each other.
1 . A cutting apparatus configured to cut a sheet bundle, the cutting apparatus comprising:
a first knife having a first end face formed on a first base end on the opposite side of a first tip in a vertical direction, and at least one fastening hole formed in the first end face so as to extend in the vertical direction and having an internally threaded inner circumferential face;
a second knife fixed at a predetermined position;
a fixing member having a second end face arranged facing the first end face in the vertical direction, and at least one fitting groove extending in the vertical direction and opened on one end side in a first direction;
a fixing mechanism having at least one fastening bolt having an externally threaded outer circumferential face, the fixing mechanism being configured to detachably fix the first knife at a fixing position of the fixing member by fastening the fastening bolt into the fastening hole with the first end face and the second end face being in contact with each other; and
a motion mechanism configured to move the fixing member between a non-cutting position and a cutting position in a vertical direction to perform switching between a non-cutting state where a first tip of the first knife is spaced apart in the vertical direction from a second tip of the second knife and a cutting state where the first tip passed has passed by the second tip,
wherein the first direction is orthogonal to the vertical direction and is a direction in which the first tip and the second tip come close to or move away from each other, and
wherein the fixing mechanism is configured to adjust the fixing position in the first direction by sliding the fastening bolt within the fitting groove.
2 . The cutting apparatus according to claim 1 ,
wherein the fixing member has a plurality of fitting grooves arranged with intervals in a second direction, the second direction being orthogonal to the vertical direction and the first direction,
wherein the first knife has a plurality of fastening holes arranged with intervals in the second direction, and
wherein the fixing mechanism has a plurality of fastening bolts and fastens the plurality of fastening bolts into the plurality of fastening holes with the first end face and the second end face being in contact with each other to fix the first knife at the fixing position of the fixing member.
3 . The cutting apparatus according to claim 2 further comprising a holding part configured to hold a state where the first end face and the second end face are in contact with each other in an unfixed state where the first knife is not fixed at the fixing position of the fixing member.
4 . The cutting apparatus according to claim 3 ,
wherein the holding part is a magnet arranged so as to form a part of one of the first end face and the second end face, and
wherein the other one of the first end face and the second end face is formed of a magnetic material.