| 摘要 |
<p>Stripping device comprises a piston with a peripheral packing (membrane) which can be inflated and applied against the wall of the plastic mould so that a perfect seal is obtd. in spite of any irregularities in the mould surface. The membrane, when deflated, leaves a certain amt. of play between the piston and the mould wall. Before filling the mould, the piston is placed in position; compressed air is admitted at nozzle in the hollow stem and expands into the space between the two pieces of the piston, which are held together by the bolts. The elastic membrane is clamped into position by the ring and seals the bottom of the mould. The latter is then filled. When the cheese is formed, the press. is relaxed and the piston pushed upwards. The cheese is extracted and remains on the upper face of the piston. Any defects in the mould surface are accommodated by the elasticity of the membrane on the piston, which is easily cleaned and can be made from stainless steel or high strength plastic.</p> |
