摘要:
A magnetic fanner for providing a gap between stacked, magnetically permeable sheets has a housing formed of non-magnetically permeable material defining a sealed chamber within which a piston is reciprocable between a first position in which magnets carried by the piston are adjacent the stacked sheets to another position in which the magnets are remote from the stacked sheets. The piston is movable in response to the presence of unequal fluid pressures in the housing on opposite sides of the piston and pressurized fluid may be delivered to a selected side of the piston in controlled relation to the exhaust of pressure fluid from the opposite side of the piston. Pressure fluid delivery and exhaust is obtained via passages in rods which span the housing chamber and guide the piston during its movements.
摘要:
A magnetising device in a web processing machine for magnetising a magnetisable area of a web of packaging material is disclosed. The magnetising device comprises a first magnetic component having a north pole and a south pole, and a second magnetic component having a north pole and a south pole. Poles of a first and same polarity are arranged adjacent in an opposed relationship and poles of a second and the same polarity are arranged remote from each other.
摘要:
A system and a method for production of a packaging laminate that comprises a layer containing magnetizable particles. The method involves marking faults, such as single spot defects and splices, on the packaging laminate by the application of a magnetic field to make a magnetic mark on the packaging laminate. A packaging device is arranged to sense the presence of the magnetic mark related to a package made from the packaging laminate.
摘要:
Apparatus for splicing expiring and replenishing webs of a web material includes first and second spaced platens having respective facing inner surfaces defining a passageway for transit of the expiring web, where the platens are adapted for displacement toward and away from one another in a reciprocating manner. The first platen is adapted to engage an end of the replenishing web, while the second platen is adapted to engage and position the moving expiring web. Moving the platens together with their respective inner surfaces in close proximity to one another causes a cutting die on the first platen to sever the expiring web forming outfeeding and infeeding ends of the expiring web, and to attach the expiring web's outfeeding end to the replenishing web. Attached to the second platen in facing relation to the first platen and engaging the expiring web is an ironing pad to ensure firm contact and adhesion of expiring web to the replenishing web. During web splicing, the cutting die is transferred from the first platen to the second platen to free the replenishing web from the first platen, with the cutting die engaging and collecting or holding the expiring web's infeeding end.
摘要:
A system and a method for production of a packaging laminate that comprises a layer containing magnetizable particles. The method involves marking faults, such as single spot defects and splices, on the packaging laminate by the application of a magnetic field to make a magnetic mark on the packaging laminate. A packaging device is arranged to sense the presence of the magnetic mark related to a package made from the packaging laminate.
摘要:
A magnetic-ink reading device includes a housing and a conveyor in the housing. A medium inlet and outlet port for inserting and pulling out a medium printed using magnetic ink are in the housing. The conveyor conveys the medium along a conveying path. The magnetic-ink reading device includes a magnetizing mechanism configured to magnetize the magnetic ink of the medium on the conveying path and a magnetism detection head disposed near the magnetizing mechanism and configured to read magnetism of the magnetized magnetic ink. The magnetic-ink reading device includes a reversing mechanism provided on the medium inlet and outlet port side of the conveying path and configured to reverse front and rear surfaces of the medium on a reversing path on an inside. The reversing mechanism includes a retraction path for temporarily retracting the medium when the magnetism of the medium is read by the magnetism detection head.
摘要:
Apparatus for splicing expiring and replenishing webs of a web material includes first and second spaced platens having respective facing inner surfaces defining a passageway for transit of the expiring web, where the platens are adapted for displacement toward and away from one another in a reciprocating manner. The first platen is adapted to engage an end of the replenishing web, while the second platen is adapted to engage and position the moving expiring web. Moving the platens together with their respective inner surfaces in close proximity to one another causes a cutting die on the first platen to sever the expiring web forming outfeeding and infeeding ends of the expiring web, and to attach the expiring web's outfeeding end to the replenishing web. Attached to the second platen in facing relation to the first platen and engaging the expiring web is an ironing pad to ensure firm contact and adhesion of expiring web to the replenishing web. During web splicing, the cutting die is transferred from the first platen to the second platen to free the replenishing web from the first platen, with the cutting die engaging and collecting or holding the expiring web's infeeding end.
摘要:
A magnetically enhanced roller for handling of magnetically attractable substrates comprises a rotatably fixed shaft and a sleeve circumscribing the rotatably fixed shaft. The sleeve configured to rotate around the shaft. The roller further includes an array of magnets adjacent to the shaft. Individual magnets of the array of magnets are oriented to provide magnetic field lines along a direction orthogonal to the rotatably fixed bearing shaft.