Supply device, retrofit kit for a vibration feeder as well as a manufacturing method and an operation method for the supply device

A supply device with which elements in disordered form are suppliable to a second receiving volume, the device having the following features:

• a first receiving container which has a first circumferential outer wall and defines a first receiving volume for the disordered elements which is fillable via a first supply opening and drainable via a first outlet opening,
• a second receiving container which has an inner wall and defines the second receiving volume, wherein
• the first receiving container with the first receiving volume is arranged at least partly within the second receiving volume,
• a bottom of the second receiving container is positioned at a distance to the first outlet opening such that the first receiving volume is defined and limited by the first circumferential outer wall of the first receiving container and the inner wall of the second receiving container, and a transfer zone is present for disordered elements from the first receiving container into the second receiving container, and wherein
• at least the bottom of the second receiving container with regard to the first receiving container is movable such that the disordered elements are dischargeable from the first receiving volume of the first receiving container into the second receiving volume of the second receiving container by means of the movement of the bottom.