Page 124 - Industrial Cutting of Textile Materials

Manual cutting equipment in textile cutting operations 111

Fig. 8.13 Presser foot of a band-knife machine.

The drilling machine consists of the following main parts: (1 and 2) handles, (3)
needle, (4) needle guide, and (5) base plate (see Fig. 8.15).

8.6.1 The drilling needle

The marking drills are done by a rotating steel needle that is fixed to a stand on the ma-
chine. The needles may be of different sizes (1.0, 1.5, 2.0, and up to 5.0 mm) according
to the size of holes required. The machine may provide the additional option of heating
the needle up to 200°C by means of a thermostatic control.

8.6.2 The base plate
The base plate ensures the stability of the machine. When the machine is put on a fab-
ric spread, it also decreases distortion of the material and keeps the fabric compressed
during the drilling process.

8.6.3 Safety devices
A special cover may be fixed to protect the movable needle and to prevent injury to
the operator.