CREAM DEPOSITING

摘要

With reference to the figures, a cream depositing machine (1) comprises a rotatable stencil drum (2) having a series of first and second stencil ports (3, 4) disposed in four groups angularly around the circumference of the drum (2), at substantially 90° spacings. Each group comprises a single port (3) surrounded by an outer port (4) of annular form, the ports (3, 4) being disposed in close proximity. A chain drive sprocket (5) mounted on the stencil drum (2) comprises means for causing the drum to rotate in timed sequence about its longitudinal axis (6) as indicated by arrow (11). Source means (12 and 13) are provided for the pumped supply of first (8) and second (9) cream material separately to each group of stencil ports (3, 4). Cream flow control means (10) within the stencil drum (2), are operable, in timed sequence, (caused by drum rotation), to initially cause first cream material (8) to issue from the central stencil port (3), and thereafter, after angular movement of 90° of the stencil drum (2) to cause second cream material (9) to issue from the second or outer stencil port (4) surrounding the central port (3), whereby separate deposits of first and second cream material (8, 9) co-exist on the stencil drum 2. A stationary cutting wire (15), in light contact with the stencil drum (2), is provided for simultaneously removing the co-existing deposits of cream. Figures 6 to 14 show a dual drum machine provided with cream supplies (12, 13) for one drum (2), and further cream supplies (121, 131) for the other drum (7). For recirculation of cream the supply (12) can be connected to supply (121), and supply (13) to supply (131).