3 Rolls Bending Machines RCS Type
| 3 Rolls Bending Machines RCS Type | |
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| Capacity : 2 à 40 mm* – Useful length 1-6 m | |
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Design
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| > Mechanically welded, generously sized steel section frame Extreme stiffness facilitates machine levelling and anchoring. > Frame design and assembly ensure a perfect geometry with no deflection over time regardless of load. The wide space around the hinged bearing assembly and the retractable brake permit rolling all types of cones, providing very good visibility. > The full enclosure provides optimal operator and machine component protection. |
 
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| Rolls | |
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> A polished finish prevents damage to prefinished parts, even parts in such highly sensitive materials as prelacquered aluminium, Reynobond type composite materials, etc. > Optional roll hardening ensures optimal service life, even in the case of intensive usage on steel, stainless and high-yield steels. Hardening methods used ensure a surface hardness of between 45 and 65 HRC. |
| > Rolls are high-quality steel with selected and traceable properties. > Rolls are shaped to application : their profile is designed for optimal results within a known capacity range to eliminate defects at capacity limits. |
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| Functions | |
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| Movement > The bottom rolls move independently in symmetrical rectilinear guideways. > Each roll is moved by two double-acting hydraulic cylinders. > Force transmission is direct to maximise performance. > The use of proportional valves allows highly precise control of roll movement. Depending on control system ordered, control of parallelism and roll tilt for cone rolling is hydraulic or electronic. Both systems ensure optimal setup with no readjustment during operation. This technology requires no additional mechanical means of moving and controlling the rolls. The absence of wearing parts significantly reduces the frequency and cost of maintenance. |
Rotation > The roll-and-bearing assembly procures maximum reliability and minimum maintenance. All roll bearings are pressure lubricated by a central pump (manual of automatic control, depending on model). > The 3 rolls are driven by heavy-duty hydraulic motors or geared hydraulic motors on the shaft ends to prevent power loss. > Direct hydraulic roll control ensures precise workpiece movement in the machine, notably during prebending. All hydraulic actuators are centrally controlled. > A calibrated pressure relief device prevents overpressure of both the hydraulic cylinders and the geared hydraulic motors for maximum operational safety. > At equal performance, all components (motor, pump, valves, piping, etc) are selected for reliability. |
| Control System | |
| Picot RCS type roll bending machines may be equipped with two different control systems - A hydraulic system - A hydro electronic system (with or without numerical control). Hydraulic control This highly reliable system allows the capacity of RCS type roll bending machines to be used to its fullest extent in the production of small series. It is standard on most RCS models |
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| Standard machines Controls | |
 
Movements are directly controlled by manually operated progressive These very precise controls are located on the hinged bearing |
Roll parallelism and tilt control
Roll parallelism is controlled by a hydraulic synchro valve. The system is highly precise and ensures long-lasting reliability. Roll tilt, required for cone rolling, is adjusted directly by graduated handwheel. Position indicator :
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| Electronic control | Interface : |
| Wheeled control panel with proportional valves : > Control All controls are located in a wheeled control panel for better visibility of the workpiece during bending. Optimised roll movement control by 4 precise, heavy-duty manipulators : - front pinch roll up/down - rear pinch roll up/down - coupled rolls up/down - rotate all rolls clockwise/anti-clockwise The hydraulics opening and closing the hinged bearing assembly can be activated from the keyboard on the control panel (optional on models 135, 150 and 170). > 28 pictogram keys for easy, intuitive use. > High-legibility fluorescent graphic screen prevents eye strain. Roll parallelism and tilt control is fully electronic : |
Direct movement control by proportional manipulators.
Instantaneous display of roll positions and current movements.
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