Fabric passes:
The fabric passes in succession, through a stretcher (see figure A, point 1), a metal detector
(fig. A, 2) and a center piece (fig. A, 3), driven by cylinders, some idle and others controlled. Two
expanding cylinders (fig. A, 4), perfectly spread out the pieces and avoid creases and swelling
before logging in
to the velveting point (fig. A, a), where they are found
a cylindrical brush (fig. A, 5) with adjustable speed, which straightens the hair with steel tips
flexible, e
a mobile wedge-shaped bar (fig. A, 6), which controls the approach of the fabric to the brush and to the cutting point (fig. A, b) where
a metal cloth rack (figs. A and B, 7), also wedge-shaped, keeps the fabric taut close to the group
trimmer, whose distance from the fabric, adjustable, determines the length of the pile.

Processing execution

Il cimatore deve:
mettere in moto la macchina, per verificare il senso di rotazione e il contatto delle spazzole col
tessuto;
introdurre il tessuto, preparato in base al risultato voluto e cucito in un anello;
abbassare il cilindro all’arrivo del tessuto al gruppo cimatore, regolandone l’altezza con le viti di
registro.
Controllare quindi:
•l’uniformità di contatto e lo spessore fra pezza e lama, fermando la macchina e facendo scorrere
su tutta l’altezza di lavoro spessori di carta (normalmente formati da uno o più cartellini).
•Il feltro posto sopra il cilindro, verificando che sia imbevuto nella giusta quantità di olio.
Avviare la cimatura e ad ogni giro completo della pezza
•confrontare l’altezza della cimatura, col campione,
•abbassare il cilindro, procedendo per successivi tagli fino al risultato desiderato.

Most recurring defects

More or less large holes deriving from knots not previously cut, shells or balls of fluff
formed on the underside and not removed by the brush, especially on worsted hair to be shaved a
bottom.
Irregular shaving that occurs due to folds, overlapping of the fabric or lumps on the reverse.
They are the same causes as the holes, but with a higher cylinder treatment.
Difference between the center and the selvedge, caused by not flat preparation from the lint or from the edge
coat rack.
Cutting for the length of the piece, for foreign material stuck on the hanger that raises the fabric.
Hair cut not clean and uniform due to lack of trimming of the group.
By moving the fixed blade with respect to the cylinder, the cut can be increased but once the movement limit is reached,
the cut does not improve, therefore the group must be sent to the workshop to be rectified and ground.

Work management

The shearer, in addition to the pre-established tasks, must perceive “with the ear” sounds different from the normal one
shearing, as negligence of a few minutes can divide a piece.
The machine is equipped with accident-prevention sensors, but care must be taken where you place the
hands with sensors disconnected. Cleaning must always be carried out with the machine stopped and in any case
pay close attention to the blades.