Checkweigher classification device is based on the role of the control device issued by the sorting instructions, when the goods with the same sorting signal through the device, the device action, so that change the direction of operation in the conveyor weighing device into the other conveyor or into the sorting of the roadway. There are many kinds of sorting devices, generally there are several kinds of push-out type, floating type, inclined type and branch type, different devices for sorting goods packaging materials, packaging weight, the smoothness of the bottom surface of the packages and so on do not have exactly the same requirements.

The grading machine utilizes dynamic weighing technology to detect the weight of the product, and the application of different weight sensors can get different detection accuracy of the weight testing machine, which determines the detection accuracy and operational stability of the weight grading machine. The range range of the weight sensor determines the weighing weight and scale of the weight grading machine. Meanwhile, the precision of the weight sensor also affects the precision of the weight sorter.

Sorting machines can be integrated with various packaging production lines and conveyor systems, mainly used for on-line detection of whether the weight of the product is qualified or not, and whether there are missing parts in the package. Or according to the different weight of the items to be conveyed to the corresponding weight range area. Generally consists of control device, sorting device, conveying device and sorting roadway. The role of the control device is to identify, receive and process the sorting signal, according to the requirements of the sorting signal to instruct the sorting device, according to the variety of goods, according to the location of the goods delivered or according to the category of the owner of the goods for automatic classification.

Detection machine can accurately detect the weight of unqualified products in the continuous production line, according to its implementation of on-line judgment or weight automatic sorting control, qualified to return to the original conveyor belt, unqualified will be rejected (or alarm shutdown), and has the classification and statistics according to the settings. The hardware of the weighing system mainly consists of computer, signal detection part, signal conditioning circuit, data acquisition card part, control part and actuator part.

The inspection machine selects the continuous dynamic automatic weighing method to check the net weight of the objects, with alarm or fully automatic removal organization, thus achieving the net weight inspection without shutting down the machine on the production line. It is suitable for the discharge of bags and cartons. When the raw material is transferred to the middle of the weighing platform, the working pressure is applied to the load cell, which deforms and changes the characteristic impedance, outputting an altered pulse signal. This signal is amplified by an operational amplifier and output to a converter, which converts it into a convenient analog signal output to a microcontroller for calculation and manipulation. Based on key commands and its optimization algorithms, such results are exported to the display, which shows information about the net weight of the information object.

The weight detection and selection of the automatic detection machine are completed by the weighing sensor, AD module, PLC and conveying mechanism. PLC reads the real-time weight of the product from the AD module, and calculates the weight of the product under test by analyzing and calculating all the weight data during the whole process of the product under test passing through the weighing conveyor belt. At the same time, PLC will judge whether the weight data obtained is within the required weight range. The machine will start the belt reversal action to remove the weight of the unqualified product.

The detector enters the sorting scale at a neat and equal distance through the introduction conveyor, and when it passes the photoelectric sensor located at the front of the sorting scale, the sorting scale begins to measure the product. In the process of the product passing through the metering conveyor, the weighing component (weight sensor) completes the measurement of the product and displays the data to the operation department. The computer automatically compares the displayed measurement data with the pre-set standard weight value, upper and lower limits, and carries out the identification and sorting of overweight and light defective products.

Detector weighing process When the product enters the conveyor, the system recognizes the holding and detection of the product into the weighing zone according to external signals, such as photoelectric switch signals, or internal level signals. Depending on the speed at which the weighing conveyor is running and the length of the conveyor, or based on the level signal, the system can determine, when the product leaves the weighing conveyor. From the product into the weighing platform to leave the sample platform, the load cell will detect the weight signal, the controller selects the signal stability region of the signal for processing, you can get the weight of the product. Sorting process When the controller gets the weight signal of the product, the system will compare it with the pre-set weight range and sort the product, the sorting type will be different according to the application.

Detection machine is a kind of high-speed and high-precision on-line checkweighing and sorting equipment, which can be integrated with various packaging production lines and conveying systems, and is mainly used for on-line detection of whether the weight of the products is qualified or not, and whether there is any missing part in the package. Or according to the different weight of the items are transported to the corresponding weight range area. After the design improvement, the sorting machine has developed from the original simple weight detection to sorting according to the weight, and the level of sorting has also developed from the first level in the field of weight rejection and weight sorting to more than 20 levels at present.