Universal tensile machine uses servo motor drive system to move the crossbeam up and down to achieve the test loading process. With precise loading speed and force measuring range, it has higher precision and sensitivity for the measurement and control of load, deformation and displacement. It can also carry out constant speed loading, constant velocity deformation, constant velocity displacement automatic control test, and has low Week load cycle, deformation cycle, displacement cycle and other functions. Mainly applicable to stretch of wire, metal foil, rubber plastics, food packaging, composite materials, elastomers, wood products, biological materials, paper products, foam materials, textile fibers, wire and cable, adhesives, connectors, etc. , Compression, bending, bending, shearing, peeling, tearing, puncturing, top breaking and other tests. Then, in the process of purchasing universal tensioning machine, how should we judge the quality of universal tensioning machine? In this regard, Shanghai Zhigan Rallying Machine Xiaobian summarized the following points:
1. Motor: High-quality universal tension motor uses AC servo speed control system, Panasonic AC servo motor, stable and reliable performance, with over-current, over-voltage, overload protection devices. At present, there is still a universal tensile machine on the market that uses ordinary three-phase motors or variable-frequency motors. This type of motor uses analog signal control, slow control response, and inaccurate positioning. Generally, the speed range has no high speed or low speed. High speed and inaccurate speed control.
2. Sensor: The sensor is an important part of the testing machine's precision and force measurement stability. The types of universal tension sensors on the market are S type and wheel type. Sensor internal strain gauges are not high accuracy, fixed strain gauges with plastic aging resistance is not good, the sensor's material will affect the sensor's accuracy.
3. Transmission system: There are two kinds of transmission parts of universal tensioning machine, one is the arc synchronous gear belt and the other is the precision screw auxiliary transmission; this transmission method has stable transmission, low noise, high transmission efficiency, high precision and long service life. The second is an ordinary belt drive. This kind of transmission method cannot guarantee the synchronism of the transmission, so the accuracy, stability and so on are not as above a kind of transmission system.
4, ball screw: universal tensioner currently used ball screw and trapezoidal screw. In general, trapezoidal screw gap is relatively large, the friction force is relatively large, and the service life is short. At present, there will be some manufacturers on the market. In order to save more costs, they will use a lead screw instead of a ball screw.
5, software and hardware: high-quality universal Rally machine using a brand computer, control system software for the Windows XP operating system platform, with a fast speed, mild interface, simple operation and other characteristics, can meet the needs of different materials, test and measurement, can measure a variety of Material physical properties test.
The above is a summary of Xiao Bian. If there is a need, a friend of Universal Rally can come to Shanghai Shigan Industrial Co., Ltd. to see, the Division specializes in the production and sales of various types of universal tensile machine, strict monitoring of quality, to ensure that users buy the rest assured, with Comfortable!
Universal Rally Machine Picture
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