Device for continuously adjusting the working pressure for staking machines with beating plates

Device for automatically adjusting the staking pressure in staking machines for leather and industrial hides, comprising:

• at least one fixed plate;
• at least one movable plate, said fixed plate and said movable plate facing each other, said fixed plate and said movable plate being provided with complementarily shaped tools;
• a plurality of threaded posts, said fixed plate being installed on said threaded posts;
• a plurality of bushes rigidly coupled to a bed and threaded complementarily with respect to said posts, said threaded posts being screwed in said bushes;
• locking devices acting selectively on said fixed plate in order to lock it in an intended position;
• at least one servomechanism rigidly coupled to said fixed plate, said servomechanism having a power supply;
• a synchronous mechanical power transmission train connecting said servomechanism to said threaded posts for the automatic and synchronous rotation thereof
• sensor devices for detecting a value of a maximum penetration of the tools and for generating a first electrical signal;
• and
• electronic control devices operatively connected to said sensor devices for comparing said first electrical signal with a presettable second electrical signal which corresponds to the intended staking pressure and for continuously adjusting said power supply.

Device for automatically adjusting the staking pressure in staking machines for leather and industrial hides, comprising:

• at least one fixed plate;
• at least one movable plate, said fixed plate and said movable plate facing each other, said fixed plate and said movable plate being provided with complementarily shaped tools;
• a plurality of threaded posts, said fixed plate being installed on said threaded posts;
• a plurality of bushes rigidly coupled to a bed and threaded complementarily with respect to said posts, said threaded posts being screwed in said bushes;
• locking devices acting selectively on said fixed plate in order to lock it in an intended position;
• at least one servomechanism rigidly coupled to said fixed plate and connected to said threaded posts for the automatic rotation thereof, said servomechanism having a power supply, said servomechanism being taken from the group consisting of hydraulic and pneumatic, said servomechanism including at least one cylinder having a stem;
• sensor devices for detecting a value of a maximum penetration of the tools and for generating a first electrical signal;
• and
• electronic control devices operatively connected to said sensor devices for comparing said first electrical signal with a presettable second electrical signal which corresponds to the intended staking pressure and for continuously adjusting said power supply.