Integrated Design Corporation

Magna-graphics Corporation

Eugene W Wittkopf

Allen R Jorgensen

Dale D Leanna

Robert A Daane

Gregory D Leanna

Glen B Leanna

Hot stamping apparatus and embossing apparatus for the production of holographic images on a substrate web, each apparatus comprising a heated roll and an anvil each having trunnions at its end journalled for rotation in bearings in a frame with a cooling system for cooling the bearings for all the trunnions and for cooling the trunnions of the heated roll.

Holographic embossing apparatus

Hot stamping apparatus and embossing apparatus for the production of holographic images on a substrate web, each apparatus comprising a heated roll and an anvil each having trunnions at its ends journalled for rotation in bearings in a frame with a cooling system for cooling the bearings for all the trunnions and for cooling the trunnions of the heated roll.

Web heating and pressing apparatus

Web printing apparatus having an impression roll and method of operating the apparatus for printing webs having different characteristics, such as different thickness and/or different modulus of elasticity, in which the speed of the impression roll is adjusted in accordance with the said characteristics and the tension to which the web is subjected in the printing operation to feed forward webs of different characteristics at different speeds for precision in impression length.

Web printing apparatus

A rotary perforator having a rotary anvil roll carrying one or two anvils cooperable with a fixed perforating blade edge for forming lines of perforations at spaced intervals along a continous web fed between the anvil roll and the blade edge, with provision for feeding the web and driving the anvil roll at different speeds, and for positioning the anvil roll at different skew angles relative to a plane transverse to the path of the web at right angles to the edges of the web so that the lines of perforations extend at right angles to the edges of the web, and with provision for forming the perforations in each line progressively across the web.

Web perforating apparatus

Apparatus comprising a frame, a pair of generally parallel rolls each having trunnions at its ends journaled for rotation in bearings in the frame with a gap between the rolls, and means for driving the rolls. The rotation of each trunnion in its bearing tending to generate heat which tends to raise the temperature of the trunnions and frame above the ambient temperature. The apparatus includes a cooling system, having a coolant supply manifold and a coolant return manifold, each with a branch for each bearing, and a pump for circulating coolant through each bearing. The cooling system also includes a device for controlling the temperature of the coolant. A temperature sensor senses the frame temperature, and a control, responsive to the temperature sensor, controls the device for controlling the temperature of the coolant to maintain a predetermined temperature differential between the temperature of the frame and the temperature of the coolant, with the coolant temperature lower than the frame temperature, whereby the gap between the rolls is maintained substantially constant.

Roll apparatus with cooling system for maintaining constant gap size and

To control the draw exerted on a web which is being fed to the rolls of a web processing machine, a strain wave gear power transmission device has its power input shaft driven by the main drive shaft of the machine and its output shaft coupled to the rolls including the nip rolls of the machine which draw the web. The wave generator (W.G.) shaft of the device is driven continuously in a single direction and at a higher rotational speed relative to the power input shaft. Encoders provide concurrent pulses at rates indicative of the main shaft and W.G. shaft speeds. The ratio of the pulse ratio is determined and compared to a stored value which corresponds to percent of draw desired. Any resulting error signal is used to change the speed of the W.G. shaft and output shaft. High encoder pulse rates provide for resolving small speed and draw errors. The output shaft of the transmission drives groups of rolls of the machine by way of a plurality of belt drive systems.

Web tension control system

A coater includes a gravuer roll rotatably mounted in a fountain of coating material. A doctor blade engages the roll and doctors material from the surface. A curved predoctor deflector opens upstream of the material and has an inclined upper edge at about the level of the material to form a wedge-shaped gap forcing material into the roll. The deflector bottom is spaced from the fountain bottom to define a return path. A curved deflector at the doctor blade collects doctored material from the doctor blade and returns it to the return path. The predoctor generates a reverse material flow in the fountain creating a pressure at the return path to create a smooth circulation of coating material and essentially constant level in the said container.

Doctor blade apparatus for coating apparatus

A five roll calendar apparatus includes five rolls mounted in a common horizontal plane, including three heated rolls with first and second covered rolls. Each heated roll includes an inner rigid core having an outer finished surface. A plurality of grooves are formed by machining the face of the core and a thin sleeve is shrunk fit onto the core to seal the grooves and establish heat transfer passageways. The size of the passageways, the separating lands and the shell thickness are such that the temperature at the surface of the roll is essentially constant over the portions of the cavity and the adjacent core body. The thin outer wall establishes a short time response for correcting the temperature of the web. The center roll is rotatably fixed and the other rolls are individually loaded toward the fixed roll for controlling of nip pressure. The covered rolls are mounted in suitable slide supports. The end rolls are mounted to a torque shaft which provides a high degree of squareness to the roll loading. A roll squeezes surface air from the web. Grooved guide rolls maintain proper web flatness. Heat sensing units are located to monitor web surface temperature and each is connected in a closed loop control for a heated roll.

Web surface treating apparatus

In a rotary press wherein ink nozzles apply different colored inks to different sections of an inking cylinder along the length thereof, and wherein excess inks run off of the inking cylinder into a compartmented inking pan, an anilox cylinder, by which ink is transferred from the inking cylinder to a plate cylinder, rotates on an axis that is fixed relative to a stationary frame for the press. The ink pan and its dividers are also stationarily secured to said frame. The plate cylinder and an impression cylinder that cooperates with it for imprinting a web are rotatably supported on sliders that carry those cylinders for bodily motion towards and from the anilox cylinder and one another. For easy change of ink color on inking cylinder sections, each compartment of the ink pan has plural readily closeable drain outlets that respectively lead to different ink reservoirs, there is an ink pump for each reservoir, and an elongated ink feed manifold for each pump has readily closeable outlets that provide for disconnectable communication with any ink nozzle.

Multi-color rotary press

In apparatus having a pair of spaced apart cylinders rotatable on respective axes that are substantially parallel and lie in a common plane, each cylinder has at each end thereof a smaller diameter concentric bearer ring. Each bearer ring on each cylinder is adjacent to a bearer ring on the other. For each bearer ring there is a roller supporting member that is movable in directions parallel to said plane and transverse to said axes, each roller supporting member being adjacent to its bearer ring, between that bearer ring and an adjacent roller supporting member. Two rollers on each supporting member, at opposite sides of said plane, rollingly engage its bearer ring. An adjustable spacer member reacting between adjacent supporting members substantially on said plane hold them spaced apart by an adjustably variable distance that determines the distance between the cylinders. Other rollers spaced to opposite sides of said plane rollingly engage each bearer ring to confine it against radial displacement, at least certain of said other rollers being under bodily bias that urges the cylinders towards one another. Preferably, all rollers are spaced like distances from said plane.

Adjustable mounting for cooperating die cylinders

Packs of product move along a defined path, compressed in the grip of carrier jaws. A pair of webs of thermoplastic sheet material move towards said path from opposite sides thereof and are joined at a heat-fused seam to form an effective continuous strip across said path and into which a pair of carrier jaws moves with its pack. Pressure jaws converge just behind the carrier jaws to form the strip into a loop around the carrier jaws and produce two parallel, slightly spaced heat-fused seams between which the webs are severed and one of which connects the ends of said loop to form a band around the carrier jaws while the other connects the webs into a strip for formation of the next band. Until the band-completing seam has cooled, the carrier jaws keep the pack compressed enough to prevent seam rupturing tension on the band, then diverge enough to tension the band slightly, whereupon band and pack, in unison, are slid endwise out of engagement with the carrier jaws. The two parallel fused seams and the cut between them are produced simultaneously by a single strip-like electrically heated element.

Machine for compression band packaging

Defectively made absorbent articles (e.g., disposable diapers) are shredded for reclamation, and their fluff fillers, mixed with undesired scraps, are fed downwardly towards a forwardly moving horizontal stretch of a conveyor screen. Fluff fibres are forced into a collecting chamber under said screen stretch by maintaining a subatmospheric pressure therein to generate a downward air flow through the screen. Above the stretch are a succession of separating chambers. Under the screen stretch, near the front of each such chamber, is an air outlet from which air is blown upward to lift material off of the screen. Near the front of each chamber, above the screen, is a paddle wheel rotor that propels lifted material rearwardly in the chamber, thus maintaining agitated circulation of material in each separating chamber. When one separating chamber is overloaded, excess material is carried on the screen into the next forward one.

Growing community of inventors

Suamico, WI, United States of America

Eugene W Wittkopf