| 摘要 |
1,137,168. Pallet loading machines. NID PTY. Ltd. 2 May, 1966 [19 April, 1966], No. 19275/66. Heading B8C. Articles, e.g. trays, to be stacked, are fed one by one along rails 30 to a magazine 32 comprising four aligning posts 31, each having an associated spring-loaded tray support lug 34, and a cam-operated reciprocable table 33; on a tray entering the magazine, the table is raised, pushing the lugs out and lifting the tray; the table is then lowered, and the lugs return and engage under the tray. This process is repeated until a predetermined number, five as described, of trays is supported on the lugs; carriers 54, supported on parallel endless chains 45, then lift the five trays and convey them via position 18C to position 18D where they are deposited on a pallet 19D resting on rails 78; when a stack is complete, bars (77), Fig. 5, carrying pawls (80) and forming part of a frame 75, are driven forward, the pawls contacting the pallet to push the stack from the machine. Carriers (54), Figs. 10-12.-The chains 45 each carry at least one member (54), each member comprising a base plate (55) secured to the chain and having pivoted thereto a member (62), including a tray-supporting flange (63). The member (62) is spring-loaded into a position into an operative position; in its operative position, the member (62) presents the flange (63) to the bottom of the five trays in the magazine 32 and lifts them round past position 18C, and, on the flange (63) contacting the trays already stacked on the pallet or the unloaded pallet, the member (62) is sprung to its withdrawn position and the trays deposited. When the stack is complete, a trip lever 101, clear of the member (62) in its operative position, is tripped by the member in its withdrawn position, thereby activating a clutch 89 which drives the flame 75 forward, ejecting the completed stack and positioning an empty pallet. The moving parts of the machine may, alternatively, be pneumatically or electronically controlled.
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