The electronic scale of truck is a new type of electronic weighing technology, which is developed by combining modern microelectronics technology and microcomputer technology. The sensor body is composed of four weighing elastomers on the base. The strain gauges attached to it are slightly deformed, and the deformation of the strain gauges leads to their resistance changes. In order to measure the resistance changes, the weighing sensors are connected into a bridge circuit. When the sensor has no external force, the bridge is balanced. When the sensor is acted by external force, the terminal voltage of CD is not equal. The voltage change is measured by the amplifier circuit and converted into the corresponding quality value for display.

The electronic scale of pallet truck adopts sealed junction box, which is dust-proof and moisture-proof to ensure reliable signal transmission. The weighing instrument adopts special industrial process controller, and communicates with the central control room through RS-485 bus, which can be controlled independently and online by PLC. It is composed of computer, weighing module and peripheral equipment, which serves as the man-machine interface of the whole system. Complete all system parameter setting, process monitoring and data recording.

The electronic scale of truck adopts the functions of human-computer interaction, communication, display, storage and printing, and has various functional screens related to operation such as data and graphic display, state monitoring, data input and information storage. It can realize real-time process data monitoring, simulation and display of process flow, real-time data record consulting of electronic scales, operator authority setting, process parameter setting, setting operation process event alarm and manual and automatic control switching.

A "remote centralized weighbridge weighing system" is established for the electronic scale of the truck. By setting up a data service center, the weighbridge room is connected with its subordinate departments, including the goods yard/station and transfer station, and the weighbridge management system for goods measurement is completed. The data generated by each department is transmitted through the network and stored in the server, so as to achieve data sharing, which is convenient for enterprise managers to make statistical analysis, check and proofread the data, and grasp the measurement-related information in time, which is beneficial to the control and management of the measurement link. The weigher can also check the vehicle weighing status through the weighing software interface.

The electronic scale of electric forklift adopts the conversion between different signal transmission modes, and the monitoring system composed of electronic scale and PC is widely used in industrial control. The serial communication between electronic scale and PC is realized directly, which saves the cost and simplifies the system, and has great practical value. The customized weighing solutions of enterprises are far from the management department, so managers can't know the working state of electronic scales in real time, and the weighing work is also effectively controlled.

Methanol auxiliary filling machine adopts two-stage automatic filling method of size material, adopts barcode recognition, wireless transmission, automatic weighing, PLC control, mechanical and electrical, computer interface and other automation technologies, and independently develops intelligent filling weighing and inventory management system to prevent wrong materials in filling, ensure weighing accuracy and ensure the accuracy of filling process. Each batch of filling data is recorded and traceable, and the principle of first-in-first-out is followed when the raw materials are sent out, which effectively solves the waste of raw materials.

The ink filling machine uses the weighing module to connect with the data line of the weighing instrument, and controls the instrument to stop the pump and close the pneumatic valve when the preset quantitative weight is reached. Controlled by a PLC programmable device, the electric drum of the scale body runs simultaneously when the container is sent in, the photoelectric switch on the weighing module detects the signal sent by the passing container, controls the signal sent by the motor when the container reaches the filling position, and the electric rolling is stopped by the PLC and the skin is automatically peeled, the filling valve is driven by the stepping motor to reach the lower limit, and the well is sent by the travel switch. PLC control filling valve is fully opened for filling.

The epoxy resin filling machine utilizes the weighing module to connect with the weighing instrument with data line, and control the instrument to stop the pump and close the pneumatic valve when the preset quantitative weight is reached. The weighing and filling machine is controlled by PLC programmable device, when the container is fed in, the scale motorized drum runs at the same time, the photoelectric switch on the weighing module detects the signal sent by the container passing by, and controls the motor to stop the container and sends out a signal when the container reaches the filling position, and the PLC controls the motorized rollers to stop and tare the container automatically, and the filling valve is driven by the stepping motor to drop down and reach the lower limit, and the well is sent out by the travel switch, and PLC controls the filling valve to be fully opened for filling. The valve is fully opened for filling.

Diluent filling machine corresponds to the filling valve fast open valve filling, open the slow solenoid valve, PLC according to the running position of the encoder to determine the opening and closing state of the filling valve, bus transmission to the controller for opening and closing the filling valve, and through the RS485 to the controller for parameter setting, recipe selection, residue recovery and so on. After the filling is finished, a material recovery button is set in the filling and weighing screen to recycle the remaining residual material around the drop filling valve body, after selecting this button, the recycling tank cylinder moves and the residual material enters into the recycling drum through the pipeline.