The sharpening system for cutter blades for cutting flexible materials in automatic cutting machines comprises at least one sharpening element, and it also comprises a first sharpening module that includes at least one first sharpening element, and a second sharpening module that includes at least one second sharpening element. It provides a sharpening system that offers an integral and simple solution to current sharpening systems by incorporating an active sharpening system in the guide plate, either in the rotary area or on the outside, or symmetrically in the upper part of the lower body of the cutting head, interchangeably.

The present disclosure provides a carbide blade grinding forming processing production line, relates to the field of blade processing in forming, and provides a production line for grinding forming processing of a carbide blade with inscribed circular holes, which has functions of blade grinding forming processing, blade cleaning and drying and detection of external dimension of a formed blade, and has an automatic loading and uninstalling function. In most processing course of the blade, the cutter head is taken as a carrier, and an overturning device is configured to overturn a whole cutter die box, such that integral end surface overturning of the cutter head in the cutter die box after single end surface grinding is realized, and blade filling processes in different processing links are reduced.

The present disclosure provides a carbide blade grinding forming processing production line, relates to the field of blade processing in forming, and provides a production line for grinding forming processing of a carbide blade with inscribed circular holes, which has functions of blade grinding forming processing, blade cleaning and drying and detection of external dimension of a formed blade, and has an automatic loading and uninstalling function. In most processing course of the blade, the cutter head is taken as a carrier, and an overturning device is configured to overturn a whole cutter die box, such that integral end surface overturning of the cutter head in the cutter die box after single end surface grinding is realized, and blade filling processes in different processing links are reduced.

The present utility model provides a cutter sharpener including a housing, a height adjusting mechanism and a cutter clamping mechanism mounted on the housing, and a grinding mechanism rotatably connected to the height adjusting mechanism. The housing includes a first mounting location, the height adjusting mechanism is movably connected to the first mounting location, the height adjusting mechanism includes a lifting body, and the lifting body can move up and down relative to the first mounting location. The cutter sharpener further includes a degree indicating mechanism fixedly connected to the lifting body.

The present utility model provides a cutter sharpener including a housing, a height adjusting mechanism and a cutter clamping mechanism mounted on the housing, and a grinding mechanism rotatably connected to the height adjusting mechanism. The housing includes a first mounting location, the height adjusting mechanism is movably connected to the first mounting location, the height adjusting mechanism includes a lifting body, and the lifting body can move up and down relative to the first mounting location. The cutter sharpener further includes a degree indicating mechanism fixedly connected to the lifting body.

A method for sharpening cutting knives carried by a cutter drum in a housing of an agricultural vehicle includes: rotating the cutter drum while keeping a sharpening door closed so an overpressure is created inside the housing, the sharpening door shielding a sharpening stone from the cutting knives while creating the overpressure; opening a transition door of the housing below the cutter drum to eject crop material through the open transition door; opening the sharpening door to expose the cutting knives to the sharpening stone and closing the transition door; grinding one or more of the cutting knives with the exposed sharpening stone; and closing the sharpening door to shield the sharpening stone from the cutting knives after grinding.

A method of manufacturing a saw blade includes placing at least one tooth in an holder where at least one face of the tooth is covered and at least one face of the tooth is exposed, coating the exposed face, and after the coating, joining the tooth to a blade backer at an uncoated face.

A method of manufacturing a saw blade includes placing at least one tooth in an holder where at least one face of the tooth is covered and at least one face of the tooth is exposed, coating the exposed face, and after the coating, joining the tooth to a blade backer at an uncoated face.

The present disclosure presents a grinding apparatus for sharpening an edge tool. The grinding apparatus may comprise a grinding apparatus casing; a cylindrical grindstone and a support element. The cylindrical grindstone is removably attachable to the grinding apparatus casing. The support element is also removably attachable to the grinding apparatus casing for supporting the edge tool to be sharpened during the grinding operation. The support element includes an elongated member, which may be embodied as a cylindrical support bar. The cylindrical support bar may be configured to extend in a direction which is perpendicular to the rotation axis of the cylindrical grindstone, during operation, in such way that a grinding operation is enabled where the edge tool to be sharpened can be sharpened by means of the side surface facing outwardly from the grinding apparatus casing during the grinding operation.

The present disclosure presents a grinding apparatus for sharpening an edge tool. The grinding apparatus may comprise a grinding apparatus casing; a cylindrical grindstone and a support element. The cylindrical grindstone is removably attachable to the grinding apparatus casing. The support element is also removably attachable to the grinding apparatus casing for supporting the edge tool to be sharpened during the grinding operation. The support element includes an elongated member, which may be embodied as a cylindrical support bar. The cylindrical support bar may be configured to extend in a direction which is perpendicular to the rotation axis of the cylindrical grindstone, during operation, in such way that a grinding operation is enabled where the edge tool to be sharpened can be sharpened by means of the side surface facing outwardly from the grinding apparatus casing during the grinding operation.