Refrigeration & Equipment Engineering

18 (A) - RINGER MACHINE

RINGER MACHINE

Aim: To seal (ring) a polythene casing stuffed with meat and record the power transmission elements of a ringer machine.

Apparatus:

1. Polythene casing with stuffed meat.
2. Measuring scale
3. Outside and inside caliper
4. Tachometer
5. Thread (Nylon)
   

Working principle: The ringer machine is used to seal a polythene casing on both the sides. In its working principle the power and motion from the electrical motor (i.e. driving shaft pulley) is transmitted to the vertical rectangular driven shaft by means of a bell crank lever mechanism. The rectangular shaft have a bottom die to cut the wire and making a ring shape to close the casing, where as top die supports to the bottom die to make the wire ring shape and to seal the casing.

Observations: Following observations have to be recorded.

Sl.No.	Parameters
1.	Horse power of the electrical motor (HP/KW)
2.	RPM of the electrical motor (rpm)
3.	Type of mechanism used
4.	Type of cam used
5.	No. of dies used

Procedure:

• Switch on the electrical motor before starting the work.
• Put the casing in between two dies.
• Take out the sealed casing.
• Switch off the machine.