Feeders of Wire or Strips use Ferro-magnetic Sensors

In industrial pressing processes, wire and strip feeders play a vital role in delivering material to the press at the correct rate. The feed rate must be precisely matched to the speed of the pressing machine to prevent damage to the press tool or material. To achieve this, many systems incorporate a catenary loop—a controlled slack of material between the feeder and the press. This loop acts as a buffer to ensure smooth material flow, but its effectiveness relies on real-time feedback to adjust the feeder’s speed dynamically.

Ferro-magnetic sensors are an ideal solution for monitoring the catenary loop and controlling the feed rate on feeders, provided the raw materials are ferro-magnetic in nature. Two sensors are strategically placed at the upper and lower limits of the loop. These sensors detect the presence of the ferro-magnetic wire or strip and provide feedback to the feeder system. This feedback mechanism prevents excessive tension or slack in the material, safeguarding the pressing process and improving system efficiency.

When the lower ferro-magnetic sensor detects the wire or strip, it signals the feeder to slow down, reducing the feed rate. If the upper sensor detects the wire, it triggers the feeder to speed up, maintaining synchronization with the press. This real-time adjustment keeps the material flow consistent, preventing tool damage and ensuring high-quality output. Ferro-magnetic sensors excel in this application due to their ability to operate reliably in harsh environments with metal debris and vibrations. By using ferro-magnetic sensors, wire and strip feeders achieve optimal performance, protecting the press tools and materials while enhancing the precision and efficiency of the entire pressing process.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Magnet Biasing Type

Some special field applications, for the sake of circuit logic, security concerns, or a power saving necessity, require a sensing signal Continue reading -> Nov 17, 2024

Recommended Products

The Reed Switches and Sensors used in feeder applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

Standard Ferro-magnetic Metal Detection Sensor, FM-328

FM-218 Metal Detection Sensor Drawing starFeaturesActuates with Any Ferrous Metal. 10W Contact Rating. Normally Open contact. Continue reading -> Sep 28, 2024

Miniature Ferro-magnetic Metal Detection Sensor, FM-324

FM-324 Miniature Ferro-Magnetic Metal Sensor Drawing starFeaturesActuates with Any Ferrous Metal. 10W Contact Rating. Normally Open Continue reading -> Sep 28, 2024