Punching machine feeders play a pivotal role in the stamping industry, with NC Servo and Roller Feeders standing as the two leading contenders. Customers are often found deliberating over these two options, trying to decide which will serve their needs best. A comprehensive understanding of the various functional, structural, and financial distinctions between NC Servo and Roller Feeders can help make this decision easier.
As experts in the manufacture of punching machine feeders, we dissect these variations across five key parameters: driving power, feeding pitch, operational adjustments, additional features, and acquisition costs.
Powering the Drive: NC Servo vs. Roller Feeders
The driving power behind an NC Servo feeder is derived from a servo motor (typically a Mitsubishi servo motor in standard models). The motor’s energy, transferred via synchronised pulleys and gears, promotes the rotation of the upper and lower drums, thereby enabling stepwise feeding. Conversely, the roller feeder draws its driving power from an eccentric disk affixed on the punching machine’s output shaft. This design enables the feeder to work without additional power, thereby boosting energy efficiency.
Feed Pitch: The Flexibility Divide
An NC Servo feeder, guided by a Mitsubishi PLC, driver, and motor, does not place any limitations on the feeding pitch, which can span from 0 to 9999.99mm. In contrast, the roller feeder, constrained by its transmission and power source, restricts the maximum feeding pitch to 300mm, curbing its versatility.
Ease of Adjustments: The Operational Edge
Feeding pitch and count adjustments on an NC Servo feeder are effortlessly accomplished via a 7-inch touch screen, and an operational handle assists in quickly carrying out the punching machine’s inching trial. Conversely, the roller feeder demands meticulous adjustment of the eccentric disk’s eccentricity on the punching machine’s output shaft. This task requires expertise and significant time due to the influence of the braking device.
Additional Features: Unleashing Advanced Capabilities
The incorporation of a numerical control system equips the NC Servo feeder with a variety of auxiliary functions that the roller feeder lacks.
i. Segmented feeding feature: NC Servo feeders can set various feeding distances (standard models can configure up to 10 segments), fulfilling the requirements of multi-station operations.
ii. Feed count setting function: NC Servo feeders allow for the adjustment of the total number of stampings based on production needs, enabling complete automation.
iii. Self-detection and alarm feature: In case of issues with the feed material or feeder, the NC Servo feeder’s self-detection and alarm function can stop the machine promptly, preventing potential mishaps and damage.
Investment Considerations: The Cost Perspective
Due to the inclusion of numerous electrical components and a higher demand for precision feeding, NC Servo feeders generally have a higher cost than roller feeders.
By exploring the above five dimensions, customers can gain a clear understanding of the unique features of NC Servo and Roller Feeders. Armed with this knowledge, they can make an informed choice based on their specific needs, financial capabilities, and long-term plans.