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Challenge:
A manufacturer of fence making equipment received a special request from their customer for a machine which cuts fencing sections to length from 0 to 120 inches, with as many as 150 product (length) changes per day. Although the company already had fence cutting equipment, the set up time to change lengths (changing stops on a hydraulic cylinder) took more than five minutes. A five minute set up was unacceptable to this customer.
Feed to Length Requirements
| Load |
150 lbs moving,
800 lbs holding |
| Speed |
3.0 inches/sec |
| Duty Cycle |
40% |
| Repeatability |
±0.01 inches |
| Programmability |
Prompt operator for position in inches and quantity |
| Interface |
Operator interface |
Solution:
| Control |
Integrated Servo Control |
| Actuator |
Rodless Actuator |
| Accessories |
home sensor
end-of-travel |
The customer mounted the fence gripper to the carriage of a 120 inch rodless cylinder to make a fully automated 0-120 inch cut to length system. The display on the integrated servo control/drive prompts the operator to enter the length of the fence in inches, as well as the number of sections to cut. The Home offset command allows the user to enter in the actual length of fence. The control was chosen for its high performance servo response, integral operator interface, ease of programming, and I/O capability, which eliminated the need for a PLC.
Application Solutions
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