Apparatus and method for ejecting workpieces from forming machin

Details Apparatus and method for ejecting workpieces from forming machin Apparatus and method for ejecting workpieces from forming machin

1994-05-19

1996-07-09

Lavinder, Jack W.

Sheet metal container making

Apparatus applying closure to receptacle

Seamer

269290, 269909, B21D 5100

Patent

active

055338534

ABSTRACT:
An apparatus and method is disclosed for ejecting workpieces from machines, especially lidded containers from lid seamers, that have a forming station including a chuck element and a forming roller and that have a positioning mechanism that advances to move the workpiece into engagement with the forming station. The apparatus and method utilize a resilient element to exert an ejecting force. The resilient element is disposed on the chuck element in a manner so that engagement of the workpiece operates to compress, either by compression or deflection, the resilient element so that it exerts a restorative force that ejects the workpiece. Where a lid seamer is sued with a pull opener (e.g., pop top) lid, the contact with the resilient member occurs a location spaced from the opener and its connecting elements. The resilient element is preferably cup-shaped having a central panel and a longitudinally and radially outwardly projecting lip. A variety of constructions of the resilient element and manners of mounting to the chuck element and its associated spindle are described.

REFERENCES:
patent: 1373001 (1921-03-01), Gray
patent: 2385429 (1945-09-01), Underwood
patent: 3025814 (1962-03-01), Currie

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