Feeders, machines for conveying materials, are indispensable equipment for light industry and heavy industry. The traditional feeder is a machine that uses the force of the machine motion to apply force to the material and transport the material. The feeder is specially used for the conveying of pellets, powders, flakes, and belt-shaped materials, and the product applications are also very extensive! In today's society, more and more industries will adopt mechanized conveying. This kind of automatic feeder has high accuracy, is environmentally friendly, time-saving, and greatly reduces labor intensity. Really achieved low cost and high return. In this era of rapid development, this kind of automation product will be favored and liked by more and more manufacturers! Today, I will tell you what is the working principle of the feeder?
The working principle of the feeder: There are some subtle differences in the working principles of different types of feeders, but the overall principle is similar. Take the roller feeder for example, which consists of a distribution device, a conveying wheel, a transmission rod, a bracket, and a control circuit. It is composed of five parts, and the distributing device discharges the bar material to the conveying wheel one rod at a time, and the conveying wheel sends the bar material to the grinding area. The bar material is above the conveying wheel when it is working. When the bar material is worn and rotated, the friction force of the bar material is reduced when the conveying wheel is rotating forward, thereby improving the abrasion accuracy. Vibration and noise are very small during work, especially suitable for long bar materials and precision workpiece processing. At present, the roller-type automatic feeder, which is increasingly widely used at home and abroad, can be used in various centerless grinders. It can complete the automatic feeding work with the processing machine tool. After the bar material in the storage box is delivered, the machine tool is automatically in a waiting state for feeding and passes the warning device. Inform the operator to add material.
The adjustment and debugging of the electromagnetic vibrating feeder are mainly the adjustment of the gap of the electromagnet core, and the adjustment and debugging of the spring plate group connected with the double mass point.
1. The adjustment of the air gap between the solenoid core and the armature. The size of the air gap between the iron core and the armature in the electromagnetic vibration feeder directly affects the normal operation of the feeder. If the adjustment is improper, the lighter will increase the current and reduce the amplitude. Small and non-normal operation, severe cases will cause iron core collision and damage to the iron core and coil. Therefore, regular inspection and adjustment of the air gap is an important condition to ensure operation.
2. There are two major factors in the amplitude of the adjustment trough of the double-mass point connection spring plate group: one is the electromagnetic excitation force of the feeder, and the second is the natural frequency of the feeder itself. According to the resonance principle of mechanical vibration, only when the natural frequency of the feeder resonates with the excitation frequency of the electromagnet, the amplitude of the trough is the largest.
The actual application of the feeder shows that the selection of a reasonable AC servo system can meet the requirements of the control system for fast response, high speed accuracy, and strong robustness. The actual application position control accuracy is up to ±0.1mm and can avoid accumulated errors. The control system can be applied to the production of high-precision opening series of cold-formed steel products, especially products similar to shelf columns, that is, the online pre-punched cold-formed production line with high-precision requirements for the cold-formed steel vertical and side holes. on.
