Web Carrier System Insures Wrinkle Free Sheeting Performance

The sheeter’s compact foot print begins with quick loading roll stands, dancer rolls, decurling units, and web steering to insure smooth web flow into the cutter infeed with convenient Operator controls.

The low profile of the web carrier framework allows an Operator to safely and quickly thread the webs of up to six unwinds from floor level.  It incorporates a layout of low inertia rolls that support the webs as they are drawn into the sheeter.  The idler rolls are grooved to maintain constant traction with the web, thereby eliminating gathering and web wander while spreading the webs evenly the distance of the run. By keeping the webs separated until reaching the cutter, static build up is also minimized.

Within the carrier system, select rolls have the capability of being skewed by the Operator.  This adjustment addresses baggy edged rolls that can contribute to webs wrinkling.  Movement of up to +/- 3” (75 mm) is achievable.

The overhead web carrier system also incorporates dancer rolls that handle web fluctuations caused by egg shaped rolls.  Located immediately after the skew roll, the pneumatically loaded dancer roll smooths web flow by absorbing the taut-slack condition of out of round rolls which aids in more efficient decurling and better sheet length accuracy.

Mill Duty Sheeter Provides High Output for Paper and Board

Robust construction, precision accuracy and "ice block" pile quality describe MAXSON's Mill Duty Sheeter

Robust construction, precision accuracy and “ice block” pile quality describe MAXSON’s Mill Duty Sheeter

Paper and board mills requiring high production equipment can now be assured of a quality product with the Mill Duty Sheeter from MAXSON AUTOMATIC MACHINERY COMPANY (Westerly RI).  Capable of operating at speeds of up to 1300 fpm (398 mpm), the Mill Duty Sheeter utilizes a unique dual knife rotary cutter design resulting in higher speeds on short cutoffs while providing maximum knife loading that delivers clean, dust free cut quality.

Available in widths of up to 100” (2540 mm), the MAXSON DFK Sheeter can deliver cut offs from 15” – 80” (381 – 2032 mm) long.  Sheet length accuracy of ±0.015” (±0.381 mm) and squareness of ±0.020” (±0.508 mm) is maintained regardless of cutoff or line speed.  Complimenting close tolerance accuracy is the superior cut quality obtained by the easily set dual knife rotary cutter.

For high bulk papers or board grades, the DFK Sheeter can be equipped with a dual slitting station to provide clean slit edges when sheeting multiple webs.  For continuous operation, it can also be outfitted with a count controlled directional gate that diverts sheet flow at full line speed to one of two stacking stations.

Off Line Cut to Registration, Cut to Mark Sheeter Available

The scanner identifies the registration mark and provides input to the knife drive to maintain pinpoint accuracy

The scanner identifies the registration mark and provides input to the knife drive to maintain pinpoint accuracy

Label converters and commercial printers sheeting to a registration mark on a variety of preprinted materials including holographic stock can ensure accuracy with the Cut to Register Sheeter at speeds up to 1000 fpm (308 mpm) from MAXSON AUTOMATIC MACHINERY COMPANY (Westerly, RI USA).

The sheeter utilizes a roll stand with line guidance capabilities, a sensitive scanner to detect registration marks, and a high resolution electronic drive system that hold the cut tolerance to within +0.006” (+0.15 mm) of the register mark regardless of line speed or cutoff.  The drive provides an “offset” parameter to position the cut from the mark, manual Operator override, programmed rejection of out of tolerance lengths and automatic sheet squaring.

This sheeter can be outfitted with a “continuous run” feature that avoids stopping the unit when making skid changes.  This permits the sheeter to be put in line with a printing press.  Available in widths up to 65” (1651 mm) the Cut to Register Sheeter has a repeat of between 11” – 65” (280 – 1651 mm) long.

 

Intuitive, Color Touch Screen Enhances Operator Productivity

From this view, the Operator can monitor counts of rejected cuts, sheets on a skid, total order count and lineal footage (meters). Line speed and sheet length are continually updated. Simple icons indicate starting and stopping the sheeter and increasing and decreasing the line speed.

From this view, the Operator can monitor counts of rejected cuts, sheets on a skid, total order count and lineal footage (meters). Line speed and sheet length are continually updated. Simple icons indicate starting and stopping the sheeter and increasing and decreasing the line speed.

 To boost sheeter Operator productivity, MAXSON AUTOMATIC MACHINERY COMPANY (Westerly, RI USA) has introduced a Human Machine Interface that incorporates a color touch screen with easily understood graphics to input and monitor machine parameters. The large 15.6” (396 mm) screen can be viewed from any angle and is centrally located on the sheeter for ease of access.

The intuitive main screen provides a stylized view of the sheeter. From this view, the Operator can monitor counts of rejected cuts, sheets on a skid, total order count and lineal footage (meters). Line speed and sheet length are continually updated. Simple icons indicate starting and stopping the sheeter and increasing and decreasing the line speed. Images are sufficiently large to forgive dimmer eye sight and less than coordinated hand positioning.

By simply touching the section of the sheeter diagram, the Operator is brought to a screen that allows access to specific operating parameters for either the roll stand, web conditioning, cutter, overlap delivery system and stacker. Machine set up and order input can be done quickly and easily, with the main operating view always one touch back from any screen. This allows the Operator to make adjustments without effort while the sheeter is operating at high speeds.

Sheeter Meets the Demands of the PET Thermoform Market

The MAXSON SDFK Sheeter can handle cut lengths from 11 inches – 2,000 inches (279 – 51,000 mm) at speeds up to 300 fpm (90 mpm). A continuous operating system is provided allowing sheeted material to be accumulated until completed pile is removed.

The MAXSON SDFK Sheeter can handle cut lengths from 11 inches – 2,000 inches (279 – 51,000 mm) at speeds up to 300 fpm (90 mpm). A continuous operating system is provided allowing sheeted material to be accumulated until completed pile is removed.

Thermoform plastic is used for vacuum forming all kinds of clear plastic parts – especially blister and clamshell packaging and point-of-purchase retail displays. Manufacturers of PET plastic can now sheet the product at higher speeds than conventional drop shear equipment, while insuring the square, accurate dimensions required for the Thermoform Industry using a sheeter designed by MAXSON AUTOMATIC MACHINERY COMPANY.

In this sheeter design, the cutting section includes knives mounted in an upper and lower rotating cylinders. The cylinders accelerate and decelerate during each revolution such that the peripheral speed of the blades and the speed of the web are equal at the cutting point maintaining sheet length accuracy and squareness. This cutting action eliminates the skive along the leading and trailing edge on thicknesses up to 0.060” (1.5 mm) thick, without producing slivers. Using an exclusive clash arrangement, the Operator can safely adjust the cross cutting blades while the cutter is running.

The MAXSON SDFK Sheeter can handle cut lengths from 11 inches – 2,000 inches (279 – 51,000 mm) at speeds up to 300 fpm (90 mpm). A continuous operating system is provided allowing sheeted material to be accumulated until completed pile is removed.

The sheeting line can be equipped with a reject gate  that diverts off specification material from the stacker to a Customer supplied bin.

“Half” Sheeter Introduced for Emerging Packaging Trend

Make readies are easily accomplished from the Sheeter's Operator side.

Make readies are easily accomplished from the Sheeter’s Operator side.

MAXSON AUTOMATIC MACHINERY COMPANY (Westerly RI USA) introduces a new high speed sheeter to serve the emerging trend of smaller format, custom oriented packaging.  The MAXSON MD1/2 Sheeter with a 15” – 42” (380 mm – 1067 mm) cutoff range and 30” (762 mm) trim width, is designed for the folding carton market that caters to the growing demand of single serving or small pack quantity boxes.

With its low inertia knife revolvers, the MD1/2 Sheeter exceeds over 18,000 cuts per hour throughout most of the cutoff range.  The electronic drives that power the dual knife rotary cutter maintain +/- 0.015” (+/- 0.38 mm) sheet length accuracy.  Using the ‘pile offset’ feature, press ready skids are delivered directly to the printer.

The MD1/2’s petite footprint permits the Operator to move effortlessly between the roll stand area and the stacker when tending the sheeter.  Make readies are easily accomplished from the machine’s near side.  A large, Windows® compatible, color touch screen uses intuitive icon displays to quickly input orders and monitor production.

Electrical enclosures are machine mounted, allowing quick field installation and straightforward operational serviceability.  Remote diagnostic capabilities that permit troubleshooting and programming modifications from MAXSON’s Westerly RI facility insure prompt after sales response.

 

Single Delivery, Pack Discharge Sheeter Now Available

When all the reams are discharged, the table raises back into position and the grid fingers retract until the next set of packs are to be off loaded. Safety interlocked guards and light curtains protect the Operator in the stacking area.

When all the reams are discharged, the table raises back into position and the grid fingers retract until the next set of packs are to be off loaded. Safety interlocked guards and light curtains protect the Operator in the stacking area.

MAXSON AUTOMATIC MACHINERY COMPANY (Westerly RI USA) now offers a sheeter for the cut size and digital format markets that continuously delivers reams from a single discharge point. Designed for the specialty papers and films industries, the MSS Sheeter can be configured convert rolls of material into packs of 25 – 1000 sheet count and offload multiple stacks to a packaging line.

Capable of sheeting between 10” – 40” (254 – 1016 mm) lengths and producing up to six piles across a 64” (1650 mm) trim width, the sheeter has a compact foot print – requiring only one Operator. Outfitted with digital drive controls and user friendly Operator console, sheet length is infinitely variable throughout the cutoff range with accuray within +/- 0.015” (+/- 0.38 mm) of the desired setting.

In the stacking area, sheets are piled on a conveyor that mounts on a scissors lift load table. When the preset pack count is achieved, interposers extend out over the stacking area as the load table drops to the off load position. The extending grid collects the sheets in the jog boxes while the conveyor feeds the packs to a Customer supplied packaging line. When all the reams are discharged, the table raises back into position and the grid fingers retract until the next set of packs are to be off loaded. Safety interlocked guards and light curtains protect the Operator in the stacking area.

An attractive option for the preprinted market, the sheeter can be outfitted with cut to mark capability. A sensor mounted at the cutter infeed detects the registration mark and can either cut on the spot or a preset distance from that point.

In-Line Roll Sheeter for Sheet Fed Presses Offered

An in line sheeter feeding a printing press can save 15% - 20% material costs without increasing the press crew size.

An in line sheeter feeding a printing press can save 15% – 20% material costs without increasing the press crew size.

An in-line roll sheeter for sheet fed printers is offered by MAXSON AUTOMATIC MACHINERY COMPANY (Westerly RI). The MSU Sheeter converts rolls of material into sheets then feeds them directly into the press, providing the competitive benefits of lower material cost, better yield and greater productivity by uniting the converting and printing processes.

Because roll stock is less expensive than cut sheets, printers can reduce their paper costs by 15 – 20% with the MAXSON MSU Sheeter. The equipment also enables them to custom-cut the paper to fit each job, so waste is reduced significantly. This is accomplished without increasing manpower requirements.

Outfitted with digital drive controls, sheet length is infinitely variable throughout the cutoff range with accuracies within +/- 0.015” (+/- 0.38 mm) of the desired setting. A slitting rig prior to the cutter trims oversized rolls to within 0.005” (0.13 mm) of the needed width. On a 40” (1016 mm) repeat, the sheeter is able to run at speeds up to 18,000 impressions/hour. For packaging applications, the sheeter can be outfitted with a dual knife rotary cutter, automatic splicing system and reject gate to realize the highest press productivity available on long production runs.

Available in various sizes, the in line sheeter can be fitted to sheet fed printing presses up to 51” x 73” (1295 mm x 1855 mm) wide format. In cases where the grain orientation is critical to post press operations, a right angle version of the sheeter is also available. The design of the sheeter is such that it can be easily retracted from the press’ feeder to allow skids of material to be run through the press as conditions dictate.

Shaftless Self Loading Roll Stand Reduces Down time

Pivot Arm Shaftless Self Loading Roll Stand that is able to handle rolls from 18” – 84” (457 – 2134 mm) in diameter and up to 10,000 pounds (4545 kg) in weight at speeds of up to 3000 fpm (914 mpm).

Pivot Arm Shaftless Self Loading Roll Stand that is able to handle rolls from 18” – 84” (457 – 2134 mm) in diameter and up to 10,000 pounds (4545 kg) in weight at speeds of up to 3000 fpm (914 mpm).

MAXSON offers a Pivot Arm Shaftless Self Loading Roll Stand that is able to handle rolls from 18” – 84” (457 – 2134 mm) in diameter and up to 10,000 pounds (4545 kg) in weight at speeds of up to 3000 fpm (914 mpm). Hydraulically powered, the unit loads the roll using the far chucking arm. This arm moves back and forth through a screw drive to accommodate various size rolls. Then clamping pressure is exerted to drive the chucks into the core.

The roll stand is mounted on tracks, which allows it to be moved off line laterally for loading. This allows the sheeter to continue to run while the roll stand is being loaded out of the web flow. This design also permits narrow rolls to be staggered across the width of the sheeter. The roll stand’s two speed traverse permits quick movement for off loading and slow, discreet positioning capability.

The Operator simply pushes the roll in between the stand’s arms. The roll stand then cradles the roll, chucks it, and lifts it into position. This self loading feature permits roll changes within 1 – 2 minutes. The roll stand is equipped with automatic tension control that reduces the brake pressure as the roll diameter decreases.

Sheeter to Convert Light Sensitive Material Now Available

The Photographic Film/Paper Sheeter which is specially designed to convert rolls of photographic papers and films into finished sized sheets in small pack quantities. It is designed to operate in a dark room environment and handle sensitive product without damage to the material’s emulsified surface.

The Photographic Film/Paper Sheeter which is specially designed to convert rolls of photographic papers and films into finished sized sheets in small pack quantities. It is designed to operate in a dark room environment and handle sensitive product without damage to the material’s emulsified surface.

Maxson Automatic Machinery Co., (Westerly, Rhode Island), offers the the Photographic Film/Paper Sheeter which is specially designed to convert rolls of photographic papers and films into finished sized sheets in small pack quantities. It is designed to operate in a dark room environment and handle sensitive product without damage to the material’s emulsified surface.

A shaftless unwind facilitates loading rolls under dark room conditions. Using microprocessor controls, the single rotating knife cutter maintains highly accurate lengths. No adjustment for sheet squareness when changing length is required. The sheeter can convert webs up to 65” (1650 mm) wide.

The Sheeter can include a sophisticated delivery system that diverts unacceptable sheets from the finished stack and a board inserter that introduces protective boards on the top and bottom of the sheet packet at preset count. Without reducing the sheeter’s speed, an automated conveyor accumulates packs as few as 10 sheets and off loads the reams to a packaging system


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