SHANGHAI, April 13 /PRNewswire-Asia/ -- Schuler ( http://www.schulergroup.com/cn ) presents a new generation of mechanical presses with servo drive. The new automatic blanking and forming presses can be quickly set up for a wide variety of applications. This is guaranteed by the variable ServoDirect Technology SDT which all presses feature as standard. Depending on the specified die and automation concept, the new presses can be operated as either transfer presses or presses with progressive die technology.
(Photo: http://www.prnasia.com/sa/2010/04/13/20100413615855.jpg )
The flexibility of the new range derives from its high-performance torque motors without flywheel, clutch and brake. As the drive speed can also be freely regulated, it is possible to vary the movement and force characteristics during the pressing stage and thus adapt the slide curve exactly to the respective application. As a result, the slide can be precisely positioned, slowed down during drawing or moved at a constant speed. This not only improves part quality, but also reduces die wear. The ability to freely program the drive means that the slide curve can be adapted exactly to the frequency of the press automation equipment -- an important contribution toward raising output. The ability to program the slide movement also means that the slide can be moved in reversible operation (oscillating stroke), thereby simply replacing the function of a mechanical slide adjustment.
The servo presses (http://www.schulergroup.com/major/cn/10_Anlagen_Verfahren/01_Blechumformung/03_Schneid_und_Umformautomaten/04_Servoantrieb/index.html ) are also ideally suited as tryout machines. With the aid of a hand-wheel, the slide can be moved in small steps and precisely positioned while adjusting the die. Slide movement is reversible in every position.
The flexible automatic blanking and forming presses are driven by highly dynamic torque motors. The new machine generation also boasts a positive energy balance: although peak power is higher for the same die and output than for a mechanical press with conventional drive system, the servo press has a lower overall energy requirement than its conventionally driven equivalent, which requires extra power for the clutch and brake during start/stop operation.
Introducing new opportunities for press shops in the metalforming and stamping supply industry: Schuler combines the proven, reliable eccentric drive with the market’s most advanced ServoDirect Technology SDT featuring highly efficient and state-of-the-art torque motors. A new press series is now available for blanking and forming -- developed to meet the requirements for flexiblity and high production rates. In conjunction with Schuler coil lines, destackers/blank loaders or tri-axis transfer systems, Schuler has created a fully automated forming system for a wide range of parts at high production rates. The new press series encompasses stamping and forming presses with servo drive in capacities from 2.500 to 30.000 kN.
The Schuler Group can offer a press system that is the right solution for press shops of every size and practically every application. Formed parts produced on Servo Presses can be found in various industries like in the automotive industry as well as in the non-automotive industry like in the home appliances, hardware, construction, sanitary, electric, furniture and packaging industry.
ServoDirect Technology SDT at a glance:
The motion curves can be individually programmed and the pendular stroke permits shorter stroke lengths without complex and costly stroke adjustments. The presses are driven directly by high-performance torque motors -- designed without flywheel, clutch or brake.
-- Considerably increased production rates compared to mechanical presses
with conventional drives. ServoDirect press output rates can be
increased up to 60 percent as compared to conventional mechanical
presses, depending on die designs.
-- High production rates can also be achieved due to programmable slide
stroke (pendular stroke motion).
-- Processes like spot welding or plastic process coating that normally
follow after the complete forming process has been completed can be
integrated into the forming process.
-- Highly efficient energy-management system: The required power during
acceleration is actually recovered and stored during regenerative
braking. The energy is then available for use again during the next
acceleration cycle. This kind of energy management actually reduces the
overall connected load usage and reduces current peaks.
-- Greater degree of flexibility since slide speeds and motion sequences
are individually programmable. The use of advanced, high-performance
servo motors and the direct connection to the eccentric drive without
flywheel permits different motion sequences to be programmed within the
press cycle. With the aid of this technology, the slide motion
characteristics can be optimally adapted to the process parameters of
both die and automation. This permits, for example, the ability to
adapt the system to the requirements for processing high-strength
steels.
-- Pendular operating mode: The pendular operating mode permits smaller,
application-specific stroke lengths to be programmed without additional
mechanical stroke adjustment. Corresponding to the requirements of the
process or the die, the servo motor performs a partial forward and
return stroke in a reciprocal motion.
-- Adaptation and optimization of the stroke length: The stroke length is
freely programmable which leads to the optimization of the forming
process.
-- Best possible part quality and long die service life.
-- Motion characteristics coordinated with the transport process for both
progressive dies and transfer dies.
-- Precise tryout mode using a manual dial. The slide speed for inching is
variable and the reverse-movement of the slide is also possible. The
"Quick-Lift" function allows quick slide opening.
-- The slide motion is reversible in any position.
-- High uptime and fast spare parts availability due to the modular press
concept with standardized components and subassemblies.
About the Schuler Group
As the technological and global market leader in metalforming, Schuler supplies machines, production lines, dies, process know-how and services for the entire metal-working industry. Our most important clients include car manufacturers and their suppliers, as well as companies in the energy, electrical and household equipment industry. Schuler is also the market leader in coin minting technology. From its base in Germany, the company is represented in over 20 nations around the world and employs more than 5,000 people. In addition to its numerous foreign subsidiaries, the Schuler Group also comprises Muller Weingarten, which it acquired in April 2007.
In China Schuler has subsidiaries in Shanghai, Beijing, Dalian, Tianjin and Jinan and handles the entire range of products from the Schuler Group. The core competencies include engineering, manufacturing, and sales of mechanical and hydraulic presses as well as blanking lines and internal and external assembly of lines. Engineering and manufacturing are in accordance with German standards and Schuler safety codes. Regularly scheduled training of personnel in Shanghai and at Schuler Germany guarantee the highest level of technical capability. Also available: Extensive services performed by highly qualified service specialists on site. This ensures Schuler customers in China high production rates and high levels of overall productivity.
