Slicing web material

Apparatus for producing structural honeycomb material from web material provided in the form of a plurality of superposed webs by cutting the web material transversely to form sections of the web material which apparatus comprises a blade formed with a linear cutting edge, means for advancing the web material a section at a time adjacent to the linear cutting edge, means for clamping the advanced web material in advance of the edge with the sections projecting beyond the edge in turn, a linear guide parallel with the edge, a counting movable to and fro along the linear guide, a blade carried by the mounting and formed with a circular peripheral cutting edge positioned to overlap the linear cutting edge, in web-material cutting association therewith, a drive having a loop of flexible material arranged with a lap connected with the mounting, and extending generally parallel with the linear guide, for moving the mounting to and fro along the guide in a continuous cyclic movement in which the mounting is moved in a first direction to a first reversal position, reversed in its motion, moved in the opposite direction to a second reversal position and again reversed in its motion for further movement in said first direction, said advancing and said clamping means being operable to advance a section of the web material when the mounting is in the region of its reversal positions and to clamp the web material when the mounting is moving to or fro over an intermediate part of its motion between the reversal positions, said blades cooperating to cut the web material transversely during each intermediate part of the cyclic movement of the mounting to cut off the then projecting section of the web material and leave the remainder of the web material with a cut edge at the position of the linear cutting edge, supply means for providing the superposed webs by bringing a plurality of separate webs into face to face relationship, said supply means having adhesive applicators for securing the webs together by longitudinally extending bands of adhesive, and means for applying adhesive to the web material to join the cut sections together in face to face relationship.

Apparatus for producing structural honeycomb material from web material provided in the form of a plurality of superposed webs by cutting the web material transversely to form sections of the web material which apparatus comprises a blade formed with a linear cutting edge, means for advancing the web material a section at a time adjacent to the linear cutting edge, means for clamping the advanced web material in advance of the edge with the sections projecting beyond the edge in turn, a linear guide parallel with the edge, a mounting movable to and fro along the linear guide, a blade carried by the mounting and formed with a circular peripheral cutting edge positioned to overlap the linear cutting edge, in web-material cutting association therewith, a drive for moving the mounting to and fro along the guide in a continuous cyclic movement in which the mounting is moved in a first direction to a first reversal position, reversed in its motion, moved in the opposite direction to a second reversal position and again reversed in its motion for further movement in said first direction, said drive having a belt extending around a pair of pulleys to provide a lap connected with the mounting and extending generally parallel with the linear guide, at least one of said pulleys being drivable by a second belt in a speed-increasing arrangement, said second belt being arranged for reciprocating movement by a slide arranged for reciprocating motion by a continuously rotatable crank arrangement, said advancing and said clamping means being operable to advance a section of the web material when the mounting is in the region of its reversal positions and to clamp the web material when the mounting is moving to or fro over an intermediate part of its motion between the reversal positions, said blades cooperating to cut the web material transversely during each intermediate part of the cyclic movement of the mounting to cut off the then projecting section of the web material and leave the remainder of the web material with a cut edge at the position of the linear cutting edge, supply means for providing the superposed webs by bringing a plurality of separate webs into face to face relationship, said supply means having adhesive applicators for securing the webs together by longitudinally extending bands of adhesive, and means for applying adhesive to the web material to join the cut sections together in face to face relationship.

Apparatus for producing structural honeycomb material from web material provided in the form of a plurality of superposed webs by cutting the web material transversely to form sections of the web material which apparatus comprises a blade formed with a linear cutting edge, final advancing means for advancing the web material a section at a time adjacent to the linear cutting edge, final clamping means for clamping the advanced web material in advance of the edge with the sections projecting beyond the edge in turn, a linear guide parallel with the edge, a mounting movable to and fro along the linear guide, a blade carried by the mounting and formed with a circular peripheral cutting edge positioned to overlap the linear cutting edge, in web-material cutting association therewith, a drive for moving the mounting to and fro along the guide in a continuous movement in which the mounting is moved in a first direction to a first reversal position, reversed in its motion, moved in the opposite direction to a second reversal position and again reversed in its motion for further movement in said first direction, said final advancing and said final clamping means being operable to advance a section of the web material when the mounting is in the region of its reversal positions and to clamp the web material when the mounting is moving to or fro over an intermediate part of its motion between the reversal positions, said blades cooperating to cut the web material transversely during each intermediate part of the cyclic movement of the mounting to cut off the then projecting section of the web material and leave the remainder of the web material with a cut edge at the position of the linear cutting edge, primary advancing means and primary clamping means, said primary and final clamping means, and said primary and final advancing means, being arranged to operate so that the primary advancing means advances the web material whilst the final clamping means is clamping it and the primary clamping means clamps the web material whilst the final advancing means is advancing it, the rate of the advancement by the primary advancing means being less than the rate of advancement by the final advancing means, said final advancing means having rotary members for gripping and advancing the web material, said rotary members being driven by means, adapted by slipping to enable the rotary members to stop rotating when they have advanced the web through the distance through which it has been advanced by the primary advancing means, supply means for providing the superposed webs by bringing a plurality of separate webs into face to face relationship, said supply means having adhesive applicators for securing the webs together by longitudinally extending bands of adhesive, and means for applying adhesive to the web material to join the cut sections together in face to face relationship.

Apparatus for producing structural honeycomb material from web material provided in the form of a plurality of superposed webs by cutting the web material transversely to form sections of the web material which apparatus comprises a blade formed with a linear cutting edge, means for advancing the web material a section at a time adjacent to the linear cutting edge, means for clamping the advanced web material in advance of the edge with the sections projecting beyond the edge in turn, a linear guide parallel with the edge, a mounting movable to and fro along the linear guide, a blade carried by the mounting and formed with a circular peripheral cutting edge positioned to overlap the linear cutting edge, in web-material cutting association therewith, a drive for moving the mounting to and fro along the guide in a continuous cyclic movement in which the mounting is moved in a first direction to a first reversal position, reversed in its motion, moved in the opposite direction to a second reversal position and again reversed in its motion for further movement in said first direction, said advancing and said clamping means being operable to advance a section of the web material when the mounting is in the region of its reversal position and to clamp the web material when the mounting is moving to or fro over an intermediate part of its motion between the reversal positions, said blades cooperating to cut the web material transversely during each intermediate part of the cyclic movement of the mounting to cut off the then projecting section of the web material and leave the remainder of the web material with a cut edge at the position of the linear cutting edge, supply means for providing the superposed webs by bringing a plurality of separate webs into face to face relationship, said supply means having adhesive applicators for securing the webs together by longitudinally extending bands of adhesive, and means for applying adhesive to the web material to join the cut sections together in face to face relationship, said blade formed with a linear cutting edge being provided at intervals along its length with adjustment devices operable, by deforming the blade locally, to adjust the linear cutting edge to maintain the cutting association with the peripheral cutting edge substantially constant when the mounting is moved over the said intermediate part of its motion.