There are three main ways of sharpening of knives for the meat grinder: on the equal wooden bar upholstered with abrasive paper; in the meat grinder, by means of special round tool-grinding bars which are established instead of grid or knife (it is possible to buy in household shop or in the market); by means of drill or the bench drilling machine, on horizontally lying karborundovy stone.
It is required to you
- 1 way - equal wooden bar 25-40 mm thick, 50-80 mm wide, 150-200 mm long, abrasive paper of 120-150 units;
- 2 way - 2 special round tool-grinding bars;
- 3 way - drill (bench drilling machine) and the device for pressing of knives to tool-grinding circle.
Instruction
1. For use of the first way it is necessary to upholster from above wooden bar with abrasive paper, then to rub, evenly pressing at the edges, the cutting part of knife or grid on nazhdachka, periodically checking spot of contact with it on knife or grid. The knife is considered ground if the contact spot evenly and without admissions has extended on all surface of knife or grid. This way is the simplest, but it is low-effective.
2. The second way is more effective. Two round tool-grinding bars are included in the package for sharpening of knives of the meat grinder. One is uniform on thickness, has semicircular border on the outer edge (as on grid) and the round opening in the center is part for sharpening of knife, the second bar of smaller diameter, has square opening in the center (as on knife), its thickness decreases from the center to edge - this for sharpening of grid. At first it is necessary to assemble the meat grinder with the first bar instead of grid, to make sharpening, rotating the screw only clockwise, trying to obtain uniform and full spot of contact of working surface of knife. Then it is necessary to assemble the meat grinder, having established the second bar instead of knife. To make sharpening as well as with the first bar. Diameter of spot of contact has to exceed a little diameter of knife and evenly surround grid openings.
3. The most effective is the third way. In cartridge of drill (bench drilling machine) the vilochkoobrazny device which middle part has to be a little less central opening of grid is inserted, and extreme are inserted into side openings of grid. Sharpening needs to be made, rotating and pressing this adaptation grid to horizontally located (lying on table) to karborundovy circle. The surface of circle has to be plain, without ditches and hillocks. Rotating speed - is no more than 300 - 400 revolutions per minute. The surface in the place of contact of circle with grid or knife needs to be humidified constantly with water, otherwise there is risk to burn grid or knife. The drill needs to be disciplined vertically! For sharpening of knife other adaptation which is the iron pin with a diameter of 12-15 mm from one edge ground by square of 8 by 8 mm into which the knife is inserted is used. Attention! The drill needs to be disciplined vertically, otherwise the knife or grid will seek to leave circle. If you have no corresponding skills, then use the bench drilling machine or the second method.