Holographic Sheeter Cuts Preprinted Material to Exacting Registration

The MDH Sheeter can be configured to include a delivery system designed to avoid marking the sheets and a cut to registration system that permits converters and printers to produce sheets of preprinted holographic material.

The MDH Sheeter can be configured to include a delivery system designed to avoid marking the sheets and a cut to registration system that permits converters and printers to produce sheets of preprinted holographic material.

MAXSON AUTOMATIC MACHINERY COMPANY  offers equipment that permits converters and printers to produce sheets of pre-printed holographic material.  Outfitted with a shaftless unwind, web steering unit, slitter rig, cut to registration system the MAXSON MDH Sheeter is also configured with an overlapping delviery system that conveys sheets to the pile without marring sensitive coatings.

The sheeter is outfitted with a high resolution scanner that can detect registration marks embedded in the holographic web.  A sophisticated motion control program governs the positioning of the cross cut to maintain tolerances to within +/-0.010” (+/-0.25 mm) of the registration mark, regardless of sheet length or line speed.  the ability to offset the cut a preset length from the registration mark is also a part of the program.  The sheeter insures exceptional product quality by continuously monitoring the accuracy of sheet registration.  Any sheets that do not maintain accuracy specification can be automatically diverted from the sheet flow to the stacker via a reject gate positioned immediately after the cutter.

The overlap carriage has an adjustment that allows the depth of the ringed roll to be set relative to the bottom slow speed tapes. This variable nip setting eliminates the burnishing on sensitive sheets caused by excessive contact with the packet’s surface. The top high speed tapes pass in between the rings of the overlap roll, removing the likelihood of belt marks.

 

MAXSON Expands Engineering Product Development Team

MAXSON AUTOMATIC MACHINERY COMPANY has added experienced personnel to its Engineering Department to lead development efforts in advancing sheeter designs for the digital, folio and large format sizes.

The next generation of MAXSON’ sheeter models will continue to insure Operator safety, enhance ease of set up, ability to convert a versatile range of materials productively, minimize power demands, incorporate intuitive control interfaces that provide readily exportable production information, and construction that uses readily accessible components available from third party vendors.

Curtis-Martin

 

 

 

Curtis Martin earned his B.S. Chemistry from Kansas State University. His career experiences include designing cutting equipment, lithium ion battery systems for aerospace, military and non-military applications, heads up displays for first person control and robotics.

 

 

 

 

Tadeusz-Kuzniar
Tadeusz Kuzniar graduated with a M.S. in Electronics in the Wroclaw Technical University (Poland). He joined INDRAMAT, which later become part of BOSCH REXROTH, focusing on CNC controls and automation. As a Principal Applications Engineer, Ted developed solutions for various applications and led workshops for advanced controllers, drive and interface systems.

Compact, High Speed Precision Sheeter Available

10.10.14Printers and converters who have purchasing sheeted stock can now transform rolls to precisely dimensioned skids of material with the MAXSON MSP Sheeter. Available in widths of either 57″ (1447 mm) or 65” (1650 mm), the sheeter can run at speeds of up to 1000 fpm (308 mpm) while maintaining tolerances of ±0.015” (±0.381 mm) length accuracy.

The sheeter’s compact size requires minimal floor space and only one operator. Various stacker configurations are available, permitting lengths up to 65″ (1524 mm) long to be sheeted or for the digital press market 40” (1016 mm) long. Outfitted with the MAXSON Airfoil Overlap, it runs lightweight grades of paper jam free at high speeds.  Though capable of cutting up to 5 rolls at a time, the MSP Sheeter is usually outfitted with two shaftless unwinds for short runs and quick make readies allowing press room managers to sheet only the number of sheets required for an order.

“Intelligent” Sheeter Decurl Unit Now Available

03.07.14A penetrating breaker roll decurl unit programmed to automatically treat web curl as the roll unwinds – thus relieving the Operator of such adjustments and permitting “best practice” routines – is now available from MAXSON AUTOMATIC MACHINERY COMPANY (Westerly RI USA). In “Intelligent” mode, the decurl movement is programmed from the start point (maximum roll diameter) to the end point (core diameter). The roll stand’s tension controller calculates the diameter of the roll. When a new roll is started, the bi-directional breaker roll automatically reverts to the start position. In the case of a splicer, when a splice occurs, the breaker roll automatically returns to the start position after the splice passes through the splice detector. At the beginning of a new roll, the Operator may choose to manually position the decurller for the particular roll’s condition. Using the “Teach” key sets the start position equal to the current penetration. In “Intelligent” mode the Operator may choose to manually override the automatic progression of the breaker roll. When such a manual adjustment is made, the end point is recalculated automatically.

Dust Removal Design Insures Cleanly Slit Sheets

Slitter Dust Removal SystemMAXSON AUTOMATIC MACHINERY COMPANY (Westerly RI USA) offers a vacuum system for its sheeters that remove dust at the slitters, insuring the cleanliness of sheeted stock and minimizing “hickies” (dust related defects) at the printing press. Suction is applied at the point of slitting removing any debris from the slit edge. Sheet metal bonnets enclose all but the contact edge of the top slitter blade and bottom slitter ring. Flexible hosing from each slitter is joined to a common manifold that is piped to a blower and duct collection box. The Operator’s lateral positioning of the slitters and setting the depth penetration of the upper slitters is not impeded. The slitter dust removal system is particularly effective when converting high bulk board substrates or multiple webs of coated papers, eliminating debris buildup caused by the slitting action.

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