In the realm of modern precision processing, stamping clients are eager to acquaint themselves with the latest automated equipment, seeking reliability and efficiency in their production lines. Air feeder machines have long been a popular choice for their reliable feeding function. However, they suffer from a prominent drawback – the inability to eliminate cumulative errors after feeding, leading to the need for frequent shutdowns and repositioning.
To address this issue, subsequent versions of feeder machines, including roller feeder machines and NC servo feeder machines, have emerged with specialized functions designed to eliminate cumulative errors. The relaxation of the feeding action has become a vital aspect of precision production, ensuring defect-free products and safeguarding the alignment tails used in the process.
The Role of NC Servo Feeder Machines
The NC servo feeder machine belongs to the category of roller-clamping feeding equipment. It offers two types, namely the pneumatic NC servo feeder machine and the mechanical NC servo feeder machine, each employing different relaxation methods.
1. Pneumatic NC Servo Feeder Machine
The pneumatic NC servo feeder machine relies on an electromagnetic valve to drive the cylinder, which, in turn, pushes or pulls the upper roller to achieve the relaxation function. Although this relaxation action is relatively slow, it boasts versatile installation options. It finds application not only in conjunction with punch presses but also with shearing machines and hydraulic presses, making it a preferred choice for various scenarios.
2. Mechanical NC Servo Feeder Machine
On the other hand, the mechanical NC servo feeder machine uses a mechanical rod-type relaxation method, enabling faster and more stable relaxation with easy adjustments. However, it requires the installation of the relaxation rod device on the press slide, limiting its application to short-step high-speed feeder scenarios or in combination with traditional punch presses.
Operational Processes of NC Servo Feeder Machines
Regardless of the type, both pneumatic and mechanical NC servo feeder machines follow the same operational processes, which involve two main stages: feeding and subsequent relaxation of the material by adjusting the position of the rollers.
1. Feeding Stage
During the crankshaft feeding zone, the NC servo feeder machine accurately feeds the sheet material into the stamping die through the precise movement of its servo motor, which drives the upper roller via gear transmission. This precise feeding action sets the stage for high-precision processing.
2. Relaxation Stage
The relaxation zone is where the magic happens. External forces, either from the cylinder-driven mechanism or the downward pressure of the relaxation rod, disengage the upper roller from the lower roller, releasing the rolling pressure on the fed sheet material. At this moment, the alignment pin precisely enters the material alignment hole, effectively eliminating cumulative errors and ensuring the utmost accuracy in each feeding cycle.
Advantages of NC Servo Feeder Machines
The utilization of NC servo feeder machines offers several advantages for precision production:
- Improved Product Quality: By eliminating cumulative errors, the NC servo feeder machines guarantee that the products manufactured on the stamping production line are free from defects, meeting stringent quality standards.
- Protection for Alignment Tails: The repeated instances of relative misalignment in traditional feeder machines can cause damage to alignment tails. The relaxation function in NC servo feeder machines ensures the alignment tails remain intact, preventing potential damage.
- Continuous Production: The cyclical motion of the NC servo feeder machines allows for uninterrupted and high-precision processing production, eliminating the need for frequent shutdowns and repositioning.
- Versatility in Application: The pneumatic NC servo feeder machines find application in various scenarios, including punch presses, shearing machines, and hydraulic presses, widening their range of usage.
- Stability and Adjustment: Mechanical NC servo feeder machines offer faster and more stable relaxation, coupled with easy adjustments for optimal performance.
In conclusion, NC servo feeder machines have emerged as indispensable tools in modern precision processing. Their ability to eliminate cumulative errors during feeding and ensure high-precision production has made them a preferred choice for stamping clients seeking efficiency and quality in their production lines. Whether it’s pneumatic or mechanical, these machines play a vital role in advancing precision production and driving the industry towards greater excellence.
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