초록 ▼

Apparatus for the thermoforming of hollow objects at a base comprises thermoforming of the objects from a sheet of thermoplastics material in a half of a double female mould that can be moved between a forming area against a male die and a discharge area to one or the other side of the forming area.

Apparatus for the thermoforming of hollow objects at a base comprises thermoforming of the objects from a sheet of thermoplastics material in a half of a double female mould that can be moved between a forming area against a male die and a discharge area to one or the other side of the forming area. The thermoformed objects are transferred from the discharge area onto a plurality of receiving formers moving sequentially stepwise along a track. One or more processing or handling operations are performed on the objects while the formers are stationary.

대표청구항 ▼

Apparatus for thermoforming of hollow objects from a sheet of thermoplastic material, the apparatus comprising: a support frame, a male die mounted on the support frame, a double female mold having female cavities thereof facing the male die to effect alternate transverse movements with respect to t

Apparatus for thermoforming of hollow objects from a sheet of thermoplastic material, the apparatus comprising: a support frame, a male die mounted on the support frame, a double female mold having female cavities thereof facing the male die to effect alternate transverse movements with respect to the male die between an operation position in which one half of the female mold is located in front of the male die and the other half is in an easily accessible side discharge position away from the male die; driving means for controlling the alternate transverse movements of the double female mold; a stepwise sheet feeder arranged to feed a sheet of thermoformable heated material between the male die and the double female mold; actuation means to effect closing and opening movement between the male die and the double female mold when one half of the female mold is in said operation position, in a direction normal to the alternate transverse movements and in sequential synchronization therewith, thereby forming hollow objects; a cutting device having control means for actuation during mating engagement between the male die and the female mold to cut out an object from the sheet of thermoformable material; a stepwise endless chain conveyor having a sequence of plate formers each of which receives the object in one forming operation, the chain conveyor being arranged to operate in synchronization with the driving means; at least one processing pick-up head capable of lifting a plurality of objects alternately from each half of the double female mold when in the discharge position and transferring the objects thus lifted into a respective plate former on the conveyor; and at least one processing station located along the conveyor for carrying out sequential processing each time of all of the objects while loaded in a plate former on the conveyor in synchronization with said driving means.