Abstract

A machine for preparing snacks comprises a source of compressed gas (CA) and pneumatic actuators (1001, 2001, 1002, 2002) for causing displacements among an upper mould plate (UP), a lower mould plate (LP) and an intermediate mould plate (IP). The pneumatic actuators (1001, 2001, 1002, 2002), comprise a compression pneumatic-cylinder (1001, 1002) having a plunger (102) delimits a first and second chambers (A, B) having variable volume. The second chamber (B) is connected with the source of compressed gas (CA) via a first duct (L1, La1, La2), the first chamber (A) is connectable to the second chamber (B) through a second duct (SLa, SLb), and the first chamber (A) is also connected to the second chamber (B) via a third duct (EL). A flow-regulator device (FR1, FR2) is set on the second duct (SLa, SLb), and a shut-off member (CV1, CV2) is set on the third duct (EL).

IPC Classes  ?

• A23P 30/36 - Puffing or expanding by pressure release, e.g. explosion puffingPuffing or expanding by vacuum treatment in discontinuously working apparatus
• A23P 30/10 - Moulding
• A23P 30/38 - Puffing or expanding by heating

Abstract

1122112212121211,212121212122) from the retracted position to the advanced position, and - preventing passage of compressed gas from the second chamber (B) to the first chamber (A) when the plunger (102) is brought by the displacement pneumatic -cylinder (2001, 2002) from the advanced position to the retracted position.

IPC Classes  ?

• A23P 30/36 - Puffing or expanding by pressure release, e.g. explosion puffingPuffing or expanding by vacuum treatment in discontinuously working apparatus
• A23P 30/38 - Puffing or expanding by heating
• A23P 30/10 - Moulding