Handling: hand and hoist-line implements – Utilizing fluid pressure – Venturi effect
Patent
1982-03-02
1984-08-07
Marbert, James B.
Handling: hand and hoist-line implements
Utilizing fluid pressure
Venturi effect
B66C 102
Patent
active
044639805
ABSTRACT:
A vacuum suction apparatus for feeding a work piece to a press, removing the work piece that has been subjected to primary working, and feeding said work piece to the adjacent press for secondary working is disclosed.
The vacuum suction apparatus comprises two vacuum cups for holding a work piece to be pressed or a work piece that has been subjected to primary working, vacuum cup supporting means and an arm coupled to the vacuum cup supporting means by bolts. An air channel having two vacuum hose connecting holes and one communicating hole is formed in the interior of said vacuum cup supporting means. Another air channel having a vacuum hose connecting end and a communicating hole is formed in the interior of said arm. The vacuum hose connecting holes of the air channel in the cup supporting means are connected to vacuum hoses connected to the respective vacuum cups. The vacuum hose connecting hole of the air channel in the arm is connected to a vacuum hose connected to vacuum source. The communicating holes in the supporting means and arm face and are in alignment with each other and an annular packing is formed around either of the two communicating holes at the interface of the supporting means and arm.
REFERENCES:
patent: 2890077 (1959-06-01), Littell
patent: 3734325 (1973-05-01), Stone
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