A knife holder has a base and a knife support portion extending from the base. The knife support portion includes a distal edge and a knife support surface for supporting a knife. The knife support surface includes a shaped portion and a relieved surface. The shaped portion has a wavy shape and is located adjacent the distal edge. The relieved surface does not have a wavy shape and is located on the knife support surface so that at least part of the shaped portion is between the relieved surface and the distal edge. An abutment surface is between the base and the relieved surface and is defined by the relieved surface.

An apparatus for cutting food products is disclosed. The apparatus includes a cutting head comprising a cutting tool that is rotatable between a plurality of positions to change the cutting thickness of the cutting tool. The cutting head also includes a biasing element that biases the cutting tool in a position, and a moveable stop configured to cooperate with the biasing element to maintain the first cutting tool at any of the plurality of positions. The biasing element may be a mechanical spring.

Tools for replacing knives in cutting machines. The tools include a clamping body having a base, bracket, clamp, and knife support tab(s). The bracket has a flange portion spaced apart from an upper surface of the base. The clamp is coupled to the base for translating in translation directions transverse to a longitudinal axis of the base. The clamp has a lift tab on the same side of the base as a rear surface thereof, and a handle is secured to the flange portion of the bracket and located on the same side of the base as the lift tab. The support tab projects from the front surface of the base, and the clamp is biased toward the support tab so that the clamp and support tab create a knife gripping mechanism for clamping an edge of a knife against the tab.

A cutting machine head and a cutting machine are provided in the present invention. The cutting machine head includes a fixing plate, a cutter holder, a cutting component, a machine head lifting mechanism and a machine head rotating mechanism. The cutter holder is mounted on the fixing plate. The machine head lifting mechanism is connected to the cutter holder, and is used to drive the cutter holder to move up and down on the fixing plate. The cutting component includes at least two cutter head assemblies mounted on the cutter holder. The machine head rotating mechanism is connected to the cutter head assemblies for driving the cutter head assemblies to rotate. The rotating angle of each cutter head assembly of the cutting machine head can be controlled. The machine head rotating mechanism controls the cutter head assembly to rotate when the machine head is cutting, and the resulting cutting line has no flaws, which can ensure the integrity of the cutting pattern.

An electronic cutting machine includes at least one housing to which a drive roller is coupled for moving a sheet to be cut in a first direction and a cutter assembly coupled to the housing and moveable in a second direction that is perpendicular to the first direction.

A knife is provided for a cutting device for cutting continuous rods in a manufacturing process, the knife including: a knife body having a distal end and a proximal end opposite the distal end, the knife body configured to be attached to a cutting device; and a cutting edge located at the distal end of the knife body, the cutting edge including at least two cutting edge segments, each cutting edge segment including a profile, the profile including one maximum protrusion from the knife body, and at least a portion of a second cutting edge segment of the at least two cutting edge segments protruding, from the knife body, to a greater extent than the maximum protrusion of a first cutting edge segment of the at least two cutting edge segments, from the knife body. A cutting device, and a method of manufacturing a cutting device, are also provided.

A sheet feeder, which is configured to feed a sheet to a processing machine, includes a main body, a cutting unit, and an attaching portion. The cutting unit is attached to the main body and includes a cutter slidable in a first direction. The cutting unit is configured to cut, along in the first direction, the sheet to be fed to the processing machine with the cutter. The attaching portion is configured to attach the main body to the processing machine. The attaching portion is attachable to the shaft of the processing machine.

A microtome includes a blade; and a knife holder. The blade has a cutting edge configured to section a specimen block. The knife holder includes a base, a pressure plate and a frame. The pressure plate is connected to the base, and the pressure plate is adjustable relative to the base to clamp the blade between base and the pressure plate. The frame includes at least one limb and a bridge extending from the at least one limb parallel to the cutting edge. The bridge is proximate the cutting edge, the bridge and the blade cooperatively define a first gap therebetween, and the bridge and the pressure plate cooperatively define a second gap therebetween.

A knife holder is provided. The knife holder includes: a base; a pressure plate pivotally arranged to the base and configured to releasably clamp a blade in a sectioning position together with the base; and a blade changing apparatus embedded in the base and configured to output an unused blade out of the base to change a used blade.

A knife assembly includes a knife blade of which a front edge is a cutting edge, a holder configured for supporting the knife blade, a clamp arranged for clamping the knife blade onto the holder, and a fastening mechanism cooperating with the clamp and the holder for securing and clamping We knife blade between the clamp and the holder with the cutting edge protruding at a front side of the knife assembly. The holder has a frontal part which is, in clamped state, in contact with a bottom side of the knife blade at a first distance from the cutting edge. The clamp has a leading edge which, in clamped state, clamps onto a top side of the knife blade and is located a second distance from the cutting edge, the second distance being smaller than the first distance.