Refinement of the old meat grinder
Continuation of the theme of finalizing the meat grinder, which crumples meat.
There are already three videos on this topic on my channel:
Why does the MEAT GRINDER CRUMPLE meat. Refinement of the NEW meat grinder. Part 1 (of 4 parts)
• Почему МЯСОРУБКА МНЁТ мясо. Доработка...
Why does the MEAT GRINDER CRUMPLE meat. Refinement of the PLANES of the knife and grate. Part 2 (from 4 parts)
• Почему МЯСОРУБКА МНЁТ мясо. Доработка...
Why does the MEAT GRINDER CRUMPLE meat. CONICAL HOLES in the grate of the meat grinder. Part 3 (of 4 parts)
• Почему МЯСОРУБКА МНЁТ мясо. КОНИЧЕСКИ...
I invite you to watch other videos on my channel in playlists
"Tool. Tool sharpening":
• Самодельный инструмент. Затачивание и...
"For the home, for the family":
• Для дома, для семьи
"Machines. Repair and improvements. Modernization":
• Станки. Ремонт и доработки. Модернизация
“Lathe MN-80. Modernization":
• Токарный станок МН-80. Модернизация
"Products from balls. Working with balls»
• Изделия из шаров. Работа с шарами
I invite you to my channel:
https://www.youtube.com/my_videos?ar=...
URL of this video:
• Почему МЯСОРУБКА МНЁТ мясо. Доработк...
They gave me a look at the Mulineks meat grinder, manufactured in 1996, which stopped cutting meat, began to crumple.
It turned out that the remote plastic sleeve of the auger was worn out so much that there was even an axial clearance.
This means that when the meat grinder is working, the knife does not fit snugly against the grate and therefore the meat grinder does not cut meat well, crumples.
Unscrewed the cap nut. It can be seen that the grate is recessed into the body, and the union nut cannot press the grate against the knife. Therefore, it is necessary to move the auger with a knife onto the grate, that is, it is necessary to put a distance washer. So I did.
That is, the problem of an old, heavily worn meat grinder is quite easily solved - by setting a remote washer. Now the meat grinder will work.
I decided to check the knife and grate at the same time.
The lattice, in fact, is also a knife, only motionless. And she also participates in the process of cutting meat, like a movable meat grinder knife.
The knife is already dull and needs to be sharpened. But first I decided to check the plane of the knife on the calibration plate for paint.
It turned out that three of the knife blades had no tips on the surface plate. Therefore, in operation, they do not press against the grate, and therefore the meat grinder can cut worse.
Rubbed the knife on the back surface. The priter is on the plate, and not on the sandpaper, because the cutting edges collapse on the sandpaper. I showed it in one of my previous videos. And showed that it's bad:
• ЗАВАЛИВАНИЕ РЕЖУЩИХ КРОМОК при затачи...
I sharpened the knife blades along the front surface on a diamond wheel.
I decided to check the flatness of the grating also by the paint on the calibration plate.
And the lattice turned out to be non-planar.
Therefore, the lap and grate on both sides are also on the lapping plate with diamond paste.
Some believe that the plane of the knife and grate should be sanded with sandpaper. Sometimes even polished with sandpaper to a mirror finish.
But specular does not mean flat.
When the edges are filled, the cutting edge of the knife passes over the cutting edge of the grate without touching it, because the edges are lowered. A gap is formed between the edges of the knife and the grate. The meat gets into this gap, crumples, is poorly cut, especially if it is not frozen. And when films come across, they sometimes do not cut off at all, and therefore they are wound on a screw. And the meat grinder has to be disassembled and cleaned from these wound films.
In any case, the auger presses, pushes the meat. But the minced meat turns out in this case wrinkled, not cut.
In this case, the load on the auger increases. And this leads to its accelerated abrasion and to the appearance of an axial clearance. And then it is necessary to put a washer to eliminate this gap.
And if both edges are sharp and the knife fits well on the grate, then even warm meat and films are good, easily cut and the minced meat is not crumpled, but chopped.
The main reason why the Mulinex meat grinder began to work, and work well, is the elimination of the axial clearance, that is, the installation of a spacer washer.
But the sharpening of the knife and the grate also, of course, improved the work of the meat grinder.