Machine eliminating electronics in peeling of long vegetables, e.g. asparagus, employs pneumatic valve feeding back air to cylinder forming part of preceding peeling unit

摘要

Each conveying roller unit (2) has a pneumatic valve (8) with an output line connected to the inlet of the pneumatic cylinder (7) forming part of the preceding peeling unit. Preferred Features: Each peeler opens when idle. A three-way pneumatic valve (8) is employed. The pneumatic cylinder (7) is single-acting, with a return spring (10). The valve includes a vent. Springs open the blade carrier (5) of the peeler. To control pressure exerted by the peeling blade, the supply pressure to the pneumatic valve is adjusted. When idle, transport rollers close together. The pneumatic valve is opened on inserting a vegetable (13) between the roller pair (3), it is closed when idle.