Core loading mechanism for web cutting machines

A core loading mechanism for a web cutting machine in which at least a first sub-web is wound on a core operating on a first support roll, and at least a second sub-web is wound on a core operating on a second support roll, said core loading mechanism comprising:

• a receiver for holding cores for roll winding to be formed at each of said support rollers;
• transfer elements for receiving the cores from said receiver and for performing initial separation between cores for the first and second support rolls, said transfer elements including curved members receiving the cores near the ends thereof and providing generally concave surfaces along which the cores will travel;
• actuator means for reorienting said transfer elements for causing cores on said transfer elements to roll off thereof;
• and
• a guide device receiving the cores from said transfer elements and directing the cores to each of said support rolls.

A core supply apparatus for a web slitting machine on which a wide roll of a web of paper or the like can be divided into a plurality of narrower rolls, which machine includes an unwinding station for the wide roll, a cutting station in which the wide web is longitudinally divided into sub-webs by means of at least one longitudinal cutting means, and a take-up station have a plurality of take-up units by means of which the sub-webs are wound into narrower rolls, the take-up units being arranged in different groups of take-up units and the take-up units of one group having substantially aligning winding axes which are spaced from substantially aligning winding axes of the other group;

• said core supply apparatus comprising:
• a tubular magazine arranged horizontally and parallel to the winding axes for holding all winding cores for all take-up units of each group, said magazine holding the winding cores coaxially in series and being adapted for receiving the winding cores inserted from one end;
• said tubular magazine including a tube having a longitudinal opening therein, said longitudinal opening having a width corresponding to at least the diameter of the winding cores;
• and means for rotating said tube about its longitudinal axes from a position in which the longitudinal opening is directed other than downwardly to a position in which the longitudinal opening is directed downwardly;
• releasing means for passing the winding cores out of said magazine;
• and
• a transfer mechanism for accepting the winding cores from said magazine, said transfer mechanism being adapted for separating the cores into groups and for transferring the winding cores to the take-up units of each group.

A core loading mechanism for a web cutting machine in which at least a first sub-web is wound on a core operating on a first support roll, and at least a second sub-web is wound on a core operating on a second support roll, said core loading mechanism comprising:

• a tubular magazine disposed above the support rolls for holding cores for roll winding to be formed at each of said support rollers;
• said tubular magazine having a tube with a longitudinal opening therein, said tube being rotatable about its longitudinal axes for moving said longitudinal opening from an upwardly directed position in which cores remain in said tube to a downwardly directed position in which cores pass from said tube;
• transfer elements for receiving the cores from said magazine and for performing initial separation between cores for the first and second support rolls;
• and
• a guide device receiving the cores from said transfer elements and directing the cores to each of said support rolls.