Patent GB-190517458-A (GB)
Title: Improvements in Machines for Closing and Sealing the End Flaps of Cartons or Boxes.
Inventor: BIRD CHARLES SUMNER
Filed: 1905-08-29
Granted: 1906-01-25
Abstract: 17,458. Lake, H. H., [Bird, C. S.]. Aug. 29. Box-making machines. - Cartons, preferably filled, are fed into a machine which folds down the first pair of upper end flaps, glues and folds down the second pair, and finally ejects the cartons. The machine may be utilized to deal similarly with the lower or upper ends of empty cartons. The cartons are placed on the belt 133, Fig. 1, and fed towards the rotating table 23, and, in the position shown in Fig. 4, the end flaps b, c are bent inwards by tucker arms 153,154 actuated from the cam 151. The carton then passes into one of the pockets on the surface of the table 23, and, as the table moves, is pressed by the plate 61, Fig. 8, mounted on the fixed retaining-plate 60, back towards the radial wall 32, until the resistance of the spring 64 is overcome, when the plate 61 is swung on its pivot to permit the passage of the carton. The carton is carried beneath the tucker plate 74, Fig. 7, which is operated from the campath 71 and turns down the flap b, the flap c being folded down over it by the contracted bent portion 80 of the plate 79, immediately after which the other flaps are turned outwards into a horizontal position by the outwardly-expanding edges of the plate 79. The glueing - mechanism, shown in Figs. 10 and 11, then comes into action. The glue-supply roll 92, working in the reservoir 90, is mounted on a shaft 91, a ratchet on which is driven by a pivoted pawl 95 on a sprocket 94, caused to rotate by means of the chain 100. The shaft 91 may also be rotated by hand by means of the handle 104. A roll 107 causes the glue to be evenly distributed on the supply roll. Swinging frames 109, 110 are mounted on the shaft 91, and carry shafts 111, 112, 113, geared together, on which are the glue-transmitting rolls 114, 115, 116, 117. A controller arm 118, provided with a cam-roll 119, riding on the cam 120 on the shaft 91, is rigidly fixed at one end to the frame 109 and at the other is engaged by the tripperarm 85, which limits the downward movement caused by the cam 120. The carton in its movement raises the detector-plate 82, causing the tripper-arm to release the arm 118, the rolls 116, 117 then glueing the flaps e, d, supported on the folder plate 43 and the table 122, spring fingers 123 afterwards lifting the flap d. The sleeve 48, connected as shown in Figs. 12 with the folder plate 43, then enters the cam 52 on the fixed cam-plate 30, Figs. 1 and 12, and is slightly depressed by the portion 53, Fig. 13, thus causing the flap e to be thrown upwards and slightly inwards to hold the flaps b, c in place. While the sleeve 48 passes through the dwell 54 of the cam, the flap d is folded down by the arm 128, actuated by the cam 124. The sleeve 48 is then farther depressed by the portion 55 of the cam 52, causing the plate 43 to be projected first over the carton to fold down the flap e and then downwards to act as a presser, being left in this position till the cam 56, Figs. 1 and 15, is reached, the guard 57 preventing any accidental lifting of the sleeve 48. As the sleeve moves upwards through the cam-way 58, the link 51 and the folder-plate arm 40 are drawn backwards, till the bearing 41 is free of the holding-portion of the cam 45, when the spring 46 retracts the parts to their normal position. A bearing on the arm of the ejector 34 then enters the throw of a cam-groove on the underside of the cam-plate 30, and the carton is forced on to the belt 134, Fig. 1, which carries it away from the machine. The rotating table is driven by means of a rack on its under surface engaging a bevel-wheel on the main shaft 27, this rack at the same time causing the rotation of the shafts which drive the belts, the glueing- mechanism, and the folder arms 74, 128.