| 摘要 |
1,048,796. Packaging; endless conveyers. KLIKLOK CORPORATION. Oct. 27, 1965 [Nov. 3, 1964], No. 45391/65. Headings B8A and B8C. [Also in Division F2] An apparatus for closing hinged lidded filled cartons has a pair of endless conveyer chains 13, 14 each driven at the same speed, one within the other. The cartons enter the apparatus with their lids 19, Fig. 2 (not shown), open, being pushed forwards into the apparatus by abutments 25, Fig. 4 (not shown), on a conveyer 20. At a position B2, Fig. 2 (not shown), the lids 19 are engaged by a belt 22 inclined to the conveyer 20 which moves at the same speed as the cartons, and folds each lid on to its carton. The leading edge of the carton is then engaged by an L-shaped element 15, Fig. 1, fixed on the outer conveyer 13. This element 15 folds the leading side flap 27, Fig. 3 (not shown), of the lid down against the side of the carton. Another L-shaped element 16 on the inner conveyer 14 then engages the trailing edge of the carton and folds a flap 29 down against the carton. The L-shaped elements 15, 16 are arched so as to reduce bowing of the flaps 27, 29. The abutments 25, Fig. 4 (not shown), on the input feed conveyer 20, are then withdrawn, and the pair of L-shaped elements 15, 16 convey the carton through apparatus. Glue tabs 30, 31, Fig. 3 (not shown), on the carton, are folded inwards against the face of the carton by a fixed guide 38, and a reciprocating finger 44 respectively. A starwheel adhesive applier 48, Fig. 7 (not shown), fixed above an electrically heated glue bath 49, applies four spots of glue on to the underside of the carton front flap 28. The flap 28, Fig. 7 (not shown), is then folded downwards against the carton by folder blades 51, 52. The carton is then disengaged from the elements 15, 16 and moved away by a conveyer 56, Fig. 8 (not shown). The apparatus is adjustable for various sizes of cartons. The glue applier star wheel 48 can be replaced by a different size applier 148, Fig. 7 (not shown). The height and width of the track 26, Fig. 8 (not shown), on which the cartons move can be varied by means of a hand wheel 61, and by adjusting the position of a plate 64. The apparatus is operated in time relationship with the filling and loading conveyer 20. The driving power is supplied from a shaft 67, Fig. 9 (not shown), through a chain drive 69 to a main drive shaft 71. The shaft 71 drives the conveyers 13, 14 through sprocket and chain arrangements. The shaft 71 drives to a normally locked differential 79 &c., Fig. 10 (not shown), through a chain 76 also driving directly to the conveyer 14. The locked differential drives through another parallel chain 82 &c., to the conveyer 13. By manual release and rotation of the normally locked differential 78, angular adjustment between the two parallel chain drives is effected to vary the spacing between the L- shaped elements 15, 16 so as to accept cartons of different lengths. |
