| 摘要 |
1,091,279. Coating apparatus. STOLLE CORPORATION. May 24, 1966 [June 10, 1965], No. 23157/66. Heading B2L. [Also in Divisions B8 and F4] A can treating apparatus, which may wash, rinse, dry, and then coat cans, comprises a baffle plate having at its rear an endless chain conveyer on which can carriers are secured, the carriers projecting through a labyrinth passage in the baffle plate to the front of the latter, the carriers having holders in which cans to be treated are loosely secured. Jets of detergent, rinsing water, drying gas and coating material are directed onto the cans as they progress along the apparatus. The baffle plate 13, Fig. 6, is inclined to the vertical, with its upper edge projecting into the washing, &c., compartment. Each carrier 18 is secured to two parallel conveyer chans 16, and has a generally S-shaped section 18b projecting through a labyrinth passage in the baffle plate 13. A bar 19a on the forward side of each carrier 18 is formed with two can holders 19. Each can holder 19 comprises three equi-angularly spaced fingers 20 having outwardly-flared ends, and a pivoted latch rod 21 spring-biased to turn so that a locking finger 22 is projected inwards over a retained can. The cans fit loosely into the holders 19, so that they can turn in the holders under the action of the jets. The pivoted latches 21 each have cam fingers 23 at their inner ends, which as the chains 16 move forwardly, engage fixed cams 24 to turn the locking fingers 22 to a withdrawn position, and thus accept or release the cans. The conveyor chains 16 run over sets of parallel sprockets (15), Fig. 1 (not shown), which guide the chains in a generally sinusoidal path, and traverse the cans along a correspondingly shaped path within a housing (10) enclosing the machine. An electric motor (not shown) powers an intermittent drive mechanism (17), Figs. 2, 3 (not shown), and a shaft (14) to drive the chains (16), so that the cans move through the apparatus step-by-step. At the input end of the machine, cans are supplied pneumatically through tubes 25, Fig. 6, to the holders 20, the latches 21 at this point being turned to their withdrawn position by engagement of the cam fingers 23 with a fixed cam 24. As the cans progress through the apparatus, they are subjected on their bases to jets (29), Fig. 9 (not shown); on their outsides to jets (27); and on their insides to jets (30). At the output end of the machine, the pivoted latches 21 are again turned to their withdrawn position, and the cans slide out of the downwardly-inclined holders 19 into pneumatically-operated withdrawal tubes (26), Fig. 8 (not shown). |
