Patent GB-1388761-A (GB)
Title: Method and apparatus for automatically setting up paper cases with bendableheaded inner cases
IPC: B31B50/76
Filed: 1972-03-27
Abstract: 1388761 Making cases KINKI INSATSU KK 27 March 1972 [19 Oct 1971] 14322/72 Heading B5D [Also in Division B8] The blank A shown in Fig. 3, is erected into an inner case whose lid portion bends to the rear upon opening and is inserted into an outer tubular case B. The lowermost blank A in a stack is removed by vertically reciprocating suction grippers (307). The blank is then intermittently transferred between endless conveyer chains (331, 332, 333) and an endless belt (336), the side edges of the blank being held by a pair of pawls (334) on the outer chains (331 and 333). Whilst so moved, the bottom flaps b 1 , b 2  are pushed upwardly and inwardly by projections (342) on circularly reciprocating L-shaped rods (341), the interlocking flap e is bent upwardly and inwardly by a reciprocating L shaped push-up rod (357) and the portions i-d of the blank are bent downwardly about the score line o over a fixed yoke (377) by an oscillating pivoted lever (372). The blank A is then moved between endless belts (383 and 384), the upper belt (383) being narrower than the lower belt (384). During this movement, the interlocking flap e is bent towards the line o by a guide plate (423). The blank A then encounters a die and plunger device (40) which folds up the sides m and portions h-d perpendicular to the back q and delivers the blank to a mould yoke (421) on an intermittentlymoved endless chain (422). Whilst the blank is held in the yoke (421), the top flaps a 1 , a 2  are bent to engage the back of the upstanding panel h by means of a rotating plate (431) and a stationary plate (433) respectively; the bottom flaps b 1 , b 2  are folded to be perpendicular to sides m by a rotating fan-shaped plate (443) and a stationary plate (442) respectively; the under surface of the panel g is pasted by a rotating fan-shaped pasting plate (454) which also makes contact with a pasting roll (452) dipping in a paste container (451); the portions g-d are then folded about line p over the portion h and flaps a 1 , a 2 , by a creasing mould (467) on an oscillating rod (462) and a guide rod (461) and is pressed in this position by a vertically reciprocating L-shaped plate (492); the insert portion d is then folded at a right-angle to portions f 2 -g and the interlocking flap e is pressed upwardly by means of an oscillating obtuse-angled press mould (473) working in conjunction with a fixed template (480); the side flaps n are bent upwardly by means of a vertically reciprocating U-shaped mould (499); the previously-pasted portion g is pressed against the portion h and flaps a 1 , a 2  by an oscillating press rod (511); the portions f 1 , f 2  are bent over and the insert portion d inserted above the downwardly displaced interlocking portion c by means of guideplates (423, 511, 522, 523); the front panel and side panels n are folded to overlie the back panel q and side panels m by a guide plate (531); the lid portion is opened by means of an oscillating panel (547) and retained in the open position by a plate (548) to enable contents to be inserted and the lid portion is then reclosed by a guide plate (551). The direction of travel of the inner case is rotated by 90 degrees by means of a turntable device (57). Flattened tubular blanks B each having a locking flap(s) at the end are removed one-by-one from a stack by reciprocating rods (602), are erected into tubular form by an oscillating L-shaped guide yoke (618), and are re-collapsed and pressed in an opposite direction to stabilize the creases by a shaping belt (641) and press roller (644) whilst conveyed by pawls (625) on a conveyer chain (624). A blank B is then pulled along a plate (651) by grippers (653, 654) and is pushed in a direction at right-angles to this direction by a push-out bar (652) past a guide plate (673) which folds the flap(s) vertically and to an ascillating L-shaped rod (681) which folds the flap(s) inwardly. The inner case A is inserted in the outer case B by means of support and press rods (693, 692) carried by an endless chain (691) and guiding the inner case A into the outer case B which is held open in its path by pawls (694) engaging the sides of case B.