Color printing packaging bag is used for packaging bulk materials with large packaging capacity

In the color printing packaging bag, 10kg weights are placed on two load-bearing points of the weighing bucket. When the weighing display displays "positive difference", the sensor output shall be adjusted to the lower direction; When the weighing display shows "negative difference", the sensor output shall be adjusted in the increasing direction. For example, when the output of L / C-1 sensor decreases, rotate a set of trimming resistors related to L / C-1 (the original value is 10 ohms) to the left with the same amount of rotation. Rotating to the right (clockwise) decreases the resistance value and increases the display value (recorded as "plus"); Turning to the left (counterclockwise) increases the resistance value and decreases the displayed value (recorded as "minus"). Note: when rotating the trimming resistor, if the rotation of each group of two is inconsistent, it will make the adjustment difficult. Therefore, the rotation of each group of trimming resistor of the sensor should be consistent as far as possible. If the error value of each bearing point is not greater than 10g, it is qualified.

Adjust the weighing according to the calibration steps in the weighing display controller manual. During verification, the weights shall be increased in the order of 0kg, 40kg, 70kg, 90kg and 100kg from zero point to Z maximum point, and the error shall not be greater than 10g, 20g, 35g, 45g and 50g respectively; Reduce the weight in the order of 100kg, 90kg, 70kg, 40kg and 0kg respectively from the maximum Z value to the zero point, and the error shall not be greater than the respective allowable error; The repeatability verification shall be carried out at two quantitative points of 40kg and 100kg, and each weighing point shall be carried out three times, and each time the error shall not be greater than their respective tolerance.

There are many parameters that must be set for the quantitative packaging scale. The common key parameters are introduced as follows: a. the quantitative value of the weighing display controller can be set as the quantitative target value, such as 90kg. b. Fast acceleration advance and slow acceleration advance. When the weight is > (set value) - (advance of fast acceleration), stop fast acceleration and turn to slow acceleration; Stop feeding when the weight is > (set value) - (slow charging advance).

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