The present disclosure provides a cutter structure for cutting polylactic acid fiber filter rods and relates to the technical field of cigarette preparation. The cutter structure includes a cutter shaft and cutters, wherein the cutters include a middle cutter and side cutters, the middle cutter is round, and cutting edges of the side cutters are flush with an edge of the middle cutter; hardness of the middle cutter is higher than that of the side cutters, so that the tow middle cutter can be conveniently used for cutting lized tows that have been crystallized in the polylactic acid fiber filter rods; and the side cutters are detachably arranged on side faces of the middle cutter and used for preventing glyceryl triacetate from adhering to the side faces of the middle cutter. The cutter structure provided by the present disclosure is simple in arrangement, the two kinds of cutters are cooperatively arranged, the situation that blades are damaged when the middle cutter collides with random crystallization points in polylactic acid fiber tows is avoided due to high hardness of the middle cutter, the side cutters on the side faces can protect the middle cutter against glyceryl triacetate adhesion, the side cutters are detachably arranged, so as to be conveniently replaced, and therefore the whole structure has higher efficiency and stability for cutting the polylactic acid fiber filter rods.

The present disclosure provides a cutter structure for cutting polylactic acid fiber filter rods and relates to the technical field of cigarette preparation. The cutter structure includes a cutter shaft and cutters, wherein the cutters include a middle cutter and side cutters, the middle cutter is round, and cutting edges of the side cutters are flush with an edge of the middle cutter; hardness of the middle cutter is higher than that of the side cutters, so that the tow middle cutter can be conveniently used for cutting lized tows that have been crystallized in the polylactic acid fiber filter rods; and the side cutters are detachably arranged on side faces of the middle cutter and used for preventing glyceryl triacetate from adhering to the side faces of the middle cutter. The cutter structure provided by the present disclosure is simple in arrangement, the two kinds of cutters are cooperatively arranged, the situation that blades are damaged when the middle cutter collides with random crystallization points in polylactic acid fiber tows is avoided due to high hardness of the middle cutter, the side cutters on the side faces can protect the middle cutter against glyceryl triacetate adhesion, the side cutters are detachably arranged, so as to be conveniently replaced, and therefore the whole structure has higher efficiency and stability for cutting the polylactic acid fiber filter rods.

A knife detecting and sharpening system can be installed in a machine base of a splitting machine and adjacent to a band knife, which is an annular loop and is driven by two knife-driving wheels, and adjacent to a wheel shaft of one of the two knife-driving wheels. The system is controlled by a computer of the splitting machine and comprises a resistance detector, connected to the wheel shaft and electrically connected to the computer, and an electric sharpening device, which is mounted inside the machine base and is controlled by the computer to sharpen the band knife's blade, to be withdrawn from the band knife, and to automatically clean dust generated during sharpening the blade. The resistance detector detects a resistance during sharpening and transmits it to the computer, which can control the electric sharpening device operating a sharpening mode or a stop-sharpening mode based on the resistance.

A knife detecting and sharpening system can be installed in a machine base of a splitting machine and adjacent to a band knife, which is an annular loop and is driven by two knife-driving wheels, and adjacent to a wheel shaft of one of the two knife-driving wheels. The system is controlled by a computer of the splitting machine and comprises a resistance detector, connected to the wheel shaft and electrically connected to the computer, and an electric sharpening device, which is mounted inside the machine base and is controlled by the computer to sharpen the band knife's blade, to be withdrawn from the band knife, and to automatically clean dust generated during sharpening the blade. The resistance detector detects a resistance during sharpening and transmits it to the computer, which can control the electric sharpening device operating a sharpening mode or a stop-sharpening mode based on the resistance.

A food slicer for slicing food items includes a slicer body and a slicer knife mounted for rotation relative to the slicer body. The slicer knife has a peripheral cutting edge with an associated cutting zone, and an associated knife drive motor. A food product carriage is mounted to the slicer body for reciprocating movement back and forth past the cutting zone of the slicer knife. A knife edge evaluation system includes at least one vibration sensor positioned and configured for detecting vibrations produced during slicer knife sharpening.

A food slicer for slicing food items includes a slicer body and a slicer knife mounted for rotation relative to the slicer body. The slicer knife has a peripheral cutting edge with an associated cutting zone, and an associated knife drive motor. A food product carriage is mounted to the slicer body for reciprocating movement back and forth past the cutting zone of the slicer knife. A knife edge evaluation system includes at least one vibration sensor positioned and configured for detecting vibrations produced during slicer knife sharpening.