| 摘要 |
PURPOSE:To prevent the wasteful use of lid film by rendering lid film feed pitch smaller than conveyor feed pitch, minimizing the former to such degree as to permit the lid to be stamped out and placing the same on a container after stamping. CONSTITUTION:A chain 3 of a conveyor 2 is sent intermittently at pitch P1. A container (r) placed in a bucket 5 upstream and packet with articles is sent to a stamping position (A). Feed rollers 31 and 32 for feeding lid film (f) are disposed in a position downstream of the stamping position A and rotated in synchronism with the operation of the chain 3. The angle for an intermittent rotation is set at such a value that clearance g1 between holes formed in the lid film is minimized or the intermittent feed pitch P2 of the lid film (f) is P2=D+g1 (D is the diameter of lid) and less than P1. Upon stopping the lid film (f), a cylinder 16 is placed into operation to force down a punch 21 to cut out the lid. A cylinder 26 comes into operation to downwardly move a push plate 27, whereby the lid is brought in alignment with the container (r) and then dropped thereonto. The cylinders 26 and 16 are then brought back into the original condition and a chain 2 is sent by pitch P1 and the lid film (f) by pitch P2. |
