Analysis of Body Structure of Automatic Checkweigher
Automatic checkweigher body structure analysis The automatic checkweigher is a high-precision and high-speed weighing and sorting device, and an important auxiliary equipment for automatic packaging. The use of the automatic checkweigher machine replaces the traditional manual weighing and static electronic scales. In use, the use of an automatic checkweigher machine can increase the product qualification rate and reduce user complaints. Here is an article on the analysis of the body structure of the automatic checkweigher machine to help you better use the automatic checkweigher; the body of the automatic checkweigher Structural analysis: The automatic checkweigher is composed of conveyor (measurement part), load cell, display controller and other parts. 1. Conveyor Conveyor is composed of conveying device and weighing unit. There are many types of conveyors, and the belt, chain or roller type can be selected according to the form of the conveyed object. The size of the conveyor depends on the size of the object being weighed. The checkweigher weighing platform itself is a small vertical conveyor, and the weighed items are weighed at the moment they pass through the conveyor. Because it is dynamic metering, the speed of metering is relatively high. The transmission part of the conveyor adopts three-in-one electric drum (that is, the motor, reducer and roller are integrated), which can make the weighing platform compact in structure, reasonable in layout and beautiful in appearance. 2. Load cell There are also many types of load cell, such as: differential transformer type, resistance strain type and electromagnetic balance type. The precision series checkweigher adopts the most widely used resistance strain sensor, which has the advantages of low price, multiple product types and good stability. A weighing platform composed of a conveyor is placed on the sensor, and the number of sensors is determined according to the size of the weighing platform. 4 sensors are used to support the platform with large weight and large size, which has stable and reliable performance; Use a single sensor to support the table. 3. Display control The weight signal sent by the weighing sensor is amplified, processed by calculation, and the weight value is digitally displayed, and the weight data is compared with the preset value, and then the control signal of underweight, overweight and qualified is sent out. The threshold of underweight and overweight can be set manually. The display control instrument can display gross weight, net weight, the last weighing value, and the difference between the last weighing value and the set nominal value. It can also display the total number of weighing pieces, the number of underweight pieces, the number of overweight pieces, and the number of qualified products. The display controller can also send a variety of statistical information, and can connect useful information to the management computer through the communication interface or print out reports through a printer. 4. Rejection device (optional) According to the packaging form and characteristics of the inspected items, the rejection device can be divided into multiple methods such as pushing out, tilting and falling, handling, and diversion, and excludes the unqualified items that are detected into the production process. outer. The checkweigher is composed of conveyor (measurement part), load cell, display controller and other parts.
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