Patent GB-191220429-A (GB)
Title: Improvements in Machines for Creasing and Pleating Discs of Material into Cup-shaped Form, and for Turning-over the Borders thereof for Souffle Cups and Analogous Articles.
IPC: D21J3/00
Filed: 1912-09-07
Granted: 1913-09-04
Abstract: 20,429. Mansell, Hunt, Catty, & Co., and Stratton, E. A. Sept. 7. Cupping and the like.-A machine for forming pleated soufflÚ cups &c. is provided with means for turning-over the edge of the cup so as to stiffen the cup and lock the pleats. As shown, the blanks of material to be pleated are fed from a pile by means of a suction separator a, Fig. 2, connected to a suction pump the piston of which is driven from a slotted lever o, Fig. 4, driven by a pin on a crank n in such a manner as to give the piston a quick return motion. The blanks are pressed upwards by a spring-pressed plate b<5> towards a ring b<4> supported by pillars b<2> which are radially adjustable to receive rings b<4> of various sizes. Fingers b<1> on the ring b<4> assist to separate the top blank only. The separator a deposits the blank on to a socket c of a pleating- apparatus c d similar to the pleating-devices described in Specifications 28,162/10 and 28,079/11, the socket c and the pile of blanks being carried on a table i which is oscillated by cam-and-link mechanism from a main shaft driven by worm gearing. The table i also carries two other sockets e, g which act with plungers /, h to turn over the edge of the pleated cup, and the cups in various stages of formation are held by the plungers while the table i oscillates. In one position of rest of the table, the plungers are depressed so as to cause a new blank to be delivered into a cup in the socket c, to deliver a finished cup into a delivery tube j, and to advance the cups which had previously been treated in the sockets c, e, into the sockets e, g, respectively. In the other position of rest of the table, the plungers d, f, h carry out their respective operations. The pleated cup delivered by ejector mechanism from plunger d to socket e is acted on in this socket by a plunger f formed with a conical part f<1>, which coacts with a similar part e' arranged above a movable liner e<2> of the socket e, and splays the edge of the pleated cup outwards. The plunger f and liner e<2> then recede together, and then the part f<1> is depressed to fold the splayed edge over the edge of the liner e<2>. The plunger f then withdraws with the cup, the part f<1> holding the turned-over edge until an ejector on the plunger ejects the cup into socket g. This socket has a stationary inner portion g<2> and a movable portion g<1>. As the plunger h descends, a shoulder h<3> on the inner portion h<2> of this plunger co-acts with the upper edge of the part g<2> and bends the turned-over edge outwards. As the cup with its edge first turned over is delivered to socket g, the turnedover edge protrudes just beyond the edge of the socket g<2> and on depression of the plunger the sleeve portion h' of the plunger h and the outer portion g' of the socket meet and sharply crease this first turned-over edge, and finally the parts h', g<1> move towards the base of socket g and complete the second turn-over. The inner and outer parts of the plungers are actuated by rollers on arms attached to these parts and cam-grooves on a main vertical shaft. The ejectors are also actuated by edge cams z on this shaft acting on rollers z<1> on arms z<2> connected to the shafts of the ejectors by collars z<3> and cotters z<4>. The cams z displace the arms about horizontal pivots z‹, and the ejectors return to normal position under the action of springs z<6>. The lever e<2> and portion g<1> of socket g are actuated by rods r<1>, r<2> and levers q<1>, q<2> acted on by cams p<1>.