Amazon.com, Inc.
Bellows valve for vacuum systems

Abstract:

A valve for use within a vacuum cup of a vacuum gripping system is described. In one example, a vacuum cup includes a bellows and a valve assembly seated within an inner chamber of the bellows. The valve assembly includes a body disk seated within the inner chamber, a control disk seated toward a suction cup end of the bellows, a spring positioned between the body disk and the control disk, and a control stem extending through the central valve aperture of the body disk, through the spring, and secured to the control disk. When the control stem is seated within the central valve aperture, the valve assembly restricts fluid suction to within the inner chamber. When the valve control stem is unseated from the central valve aperture, the valve assembly conveys fluid suction to the suction cup end of the bellows.