Tool positioning apparatus

A tool positioning apparatus which is adapted to position by a numerical control a plurality of pairs of tools attached to pairs of tool holders mounted on a pair of parallel shafts so that longitudinal slits, scores or the like may be produced along a web of board such as corrugated board conveyed through between said pair of shafts, said tool positioning apparatus being provided with;

• pairs of tool holders slidably mounted on said pair of parallel shafts and adapted to attach said pairs of tools respectively;
• shifters arranged at tool feed control devices which are provided correspondingly to the number of said pairs of tools and movable on at least one guide member parallel to said shafts, and being adapted to engage and disengage with said pairs of tool holders respectively;
• a moving device capable of engaging simultaneously all of said shifters with said pairs of tool holders respectively and disengaging simultaneously all said shifters from said pairs of tool holders respectively, each of said shifters having a pair of plate members adapted to coact with said tool holders to form a gap between each said pair of tools when first engaged with said pair of tool holders and then moved on said shafts, and also to allow said pair of tools to contact with each other when secondly engaged with said pair of tool holders;
• and a numerical positioning controller capable of controlling driving motors of said tool feed control devices.

A tool positioning apparatus which is adapted to position by a numerical control a plurality of pairs of tools attached to pairs of tool holders mounted on a pair of parallel shafts so that longitudinal slits, scores or the like may be produced along a web of board such as corrugated board conveyed through between said pair of shafts, said tool positioning apparatus being provided with;

• pairs of tool holders slidably mounted on said pair of parallel shafts and adapted to attach said pairs of tools respectively;
• shifters being arranged at tool feed control devices which are provided correspondingly to the number of said pairs of tools and movable on at least one guide member parallel to said shafts, and being adapted to engage and disengage with said pairs of tool holders respectively;
• a moving device capable of engaging simultaneously all said shifters with said pairs of tool holders respectively and disengaging simultaneously all said shifters from said pairs of tool holders respectively, one of both of each pair of said pairs of tool holders having a head groove which is adapted to coact with a shifter to form a gap between said pair of tools when engaged with a shifter and allow said pair of tools to contact with each other when disengaged from said shifter;
• and a numerical positioning controller capable of controlling driving motors of said tool feed control devices.

A tool positioning apparatus which is adapted to position by a numerical control a plurality of pairs of tools attached to pairs of tool holders mounted on a pair of parallel shafts so that longitudinal slits, scores or the like may be produced along a web of board such as corrugated board conveyed through between said pair of shafts, said tool positioning apparatus being provided with;

• pairs of tool holders slidably mounted on said pair of parallel shafts and adapted to attach said pairs of tools respectively;
• shifters being arranged at tool feed control devices which are provided correspondingly to the number of said pairs of tools and movable on at least one guide member in parallel to said shafts, and being adapted to engage and disengage with said pairs of tool holders respectively;
• a moving device capable of engaging simultaneously all said shifters with said pairs of tool holders respectively and disengaging simultaneously all said shifters from said pairs of tool holders respectively, each of said shifters having a pair of plate members which are adapted to coact with said tool holders form a gap between said pair of tools when engaged with said pair of tool holders and allow said pair of tools to contact with each other when disengaged from said pair of tool holders;
• and a numerical positioning controller capable of controlling driving motors of said tool feed control devices.