MACHINE TOOLS SOUTH
3171 Green Valley Road • Birmingham, AL 35243 • Office: (205) 968-3570 • Fax: (888) 235-8257


Back to available Plate and Angle Rolls



STANDARD FEATURES


                                                                                   ROLLS
The heart of WDM 4 roll plate bending machine is the rolls themselves. These rolls are machined from 1045/50 steel bars or forgings. They are crowned to compensate for deflection and supported on sealed, self-aligning spherical bearings
requiring minimal maintenance.



Roll Support and Adjustment



                                                                 ANGLING OF ROLLS
The hydraulic circuit is fitted with a half turn valve that allows all adjustable rolls to be angled for cone rolling, etc.







Rolls


                                                                              ROLL DRIVE
The top and bottom center rolls are driven by individual low speed high torque type hydraulic motors coupled to rails with ridged couplings and planetary type speed reducers. ( 4", 5", and 6" roll machines do not have speed reducers) Top and bottom roll speeds are hydraulically synchronized and equalized.




Roll position indicators
Rolls




ROLL SUPPORT AND ADJUSTMENT
The bearings that hold the rolls are supported on a set of master and slave hydraulic cylinders with very effective seals and travel in a radial path.


Angling of Rolls


RESTORING PARALLELISM OF ROLLS
Restoring parallelism of rolls is accomplished by a special valve arrangement designed by WDM which is activated when the roll is lowered to the bottom and held momentarily until all movement ceases. Roll is then parallel with top roll.




Roll Drive


ROLL POSITION INDICATORS
The roll position indicators consist of an etched dial and painter located on main housing facing operator's position. Various other indicators are available. See options.


xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxHYDRAULIC SYSTEM
The hydraulic reservoir is an integrol part of the machine frame which help dissipate system heat. This and careful attention efficiency keeps the hydraulic system cool. The pump, valves, and other hydraulic components are sized and designed with maximum efficiency and function in mind. Sound deadening material is incorporated into the pump compartment to reduce sound levels even more.


Control Valves


xxxxxxxxxxxxxxxxxxxxxxSPEED CONTROLS
The part of the entire system is controlled via a flow controll knob located on the main housing near the operator's station. This knob controls the roll rotation and the adjustment speeds. Individual speed control is available as an option on smaller machines and standard on larger machines. (400-10 and above)



FRAME




xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxFINISH
Machine is finished with V.O.C. compliant haze gray epoxy and safety blue enamal.






Electrical System




xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxSAFETY CABLE
A safety cable on three sides of the machine allows anyone to stop the machine by tripping the wire. It's switch incorporates a feature which makes it impossible to start the machine unless the cable installed with proper tension.



Hydraulic System


      CONTROL VALVES
The control valves are of manual octuarion type and mounted on main machine housing. This standard feature feel and feathering capability to the operator's finger tips. Many other controls are available. See options.








Speed Control






FRAME
All this is housed in a compact, streamline, fabricated and machined steel frame composed of steel plates and robust structural sections.


Speed Control


ELECTRICAL SYSTEM The electrical system is housed in NEMA 12 enclosures and is installed in accordance with NFPA-79 specifications. Motors are effecient, totally enclosed, fan cooled, hostile environment type.

Safety Cable



SOME STANDARD OPTIONS AVAILABLE


xxxxxxxxxxxxxxCONE ATTACHMENT
The cone attachment consist of an indexable and replaceable hardened steel nose mounted on a bronze bushed steel sleeve which slides onto the reduced diameter portion of the top roll next to the drop end and removed when not rolling cones.


Roving Pendant Control




xxxxxxxxxxxxxxFREE STANDING CONSOLE
This is similar to the above feature except roll movement and rotation functions are controlled by joysticks mounted on the console. The drop end controls, motor start stop, and emergency stop buttons are also mounted on the console. When the machine is equipped with D.R.O. indicators (see below) and controls they also installed in this console.


Swing console type control

xxxxxxxxDUAL GUARDED FOOT PEDAL
This feature is available for forward and reverse rotation of the rolls, allowing operator to use both hands to manipulate workpiece.



Digital Readouts

DIGITAL READOUT WITH PRESETS
This feature can be used to replace the dial pointer. In addition to giving the digital roll position it can also be pre-programmed with 2 preset positions allowing the operator to return repeatly and with accuracy to the pre-set position, greatly increasing productivity. It reads roll position at inboard (drive-end) Series 421, or inboard and outboard (drop-end) Series 422, useful for cone rolling.


LENGHT INDICATION D.R.O.
A digital readout (Series L) can be provided to indicate length rolled in hundredths of an inch. This aids operator in rolling flat-radius, flat-radius-flat, or variable radii type workpiece.


WDM


Cone Attachment

ROVING PENDANT CONTROL
This is a popular option used to increase the mobilty of the operator while forming the workpiece. It allows the operator to raise and lower all adjustable rolls and rotate roll in forward and reverse while moving anywhere within the range of the attaching cord.


Free Standing Console

SWINGING CONSOLE TYPE CONTROL
This console is mounted on the drop end housing of the machine and swivels about 120 degrees allowing the operator to view both sides of the machine while forming the workpiece. This control has all of the advantages of the manual type valves with additional advantage of some movement. The optional D.R.O. indicators are installed on this console.


Dual Guarded Foot Pedal

DIGITAL READOUTS
The dial pointer type controls can be replaced with electronic digital readouts on inboard (drive-end) Series 421, or inboard and outboard (drop-end) Series 422, useful for cone rolling.


Digital readout wit presets

LENGTH INDICATION DRO WITH PRESET
This control is same as Series L , at left, except that additionally it incorporates 2 pre-programmable presets (Series LP) which stop the machine when preset length is reached.
Also available is model Series LP6 which has 6 preset positions instead of 2. (These features can not be used with manual valve models)


AUTOMATIC CYCLE CONTROL
The Series 425-4 control is used for high volume production. After entering the workpiece the operator depresses the guarded foot pedal which initiates the cycle. The machine completes all forming fuctions automatically. It is also possible to use this machine manually or in a manual with preset mode when automatic operation is not desirable. If the machine is equipped with a feeder or parts ejector they also operated by this control. The control console can be mounted on drive-end, drop-end, or be free-standing.
FORMING PROCEDURE




forming procedure
Workpiece is entered into the machine and squared against far bending roll.
Center (pinch) roll is raised to grip workpiece.

forming procedure
Roll is reversed until leading edge of workpiece nears center of roll.

forming procedure
Far bending roll is lowered. Near bending roll is raised to pre-bend position.

forming procedure
Rolls are rotated forward until
pre-bend is complete.

forming procedure
Near bending roll is lowered. Far bending roll is raised to rolling position.

forming procedure
Workpiece is rolled to completion.


For more information and pricing contact,
Sales
3171 Green Valley Road
Birmingham, AL 35243
Office: (205) 968-3570
Fax: (888) 235-8257
E-mail: Sales@MachineToolsSouth.com