The weighing and Feeding machine consists of Weighing modules, conveyors, circular conveyors, and Feeders. The overall system is made up of Siemens S7-200SMARTPLC, and the weighing instruments use Modbus Rtu protocol based on RS-485 for weight data transmission. There are two Electronic scales with conveyors that can be lifted and lowered on site. In actual operation, it is necessary to determine whether the feeding bucket of the electronic scale is in place. To meet reliability, opposite photoelectric switches are installed on both sides of the scale platform. After the operator selects the bucket feeding operation, the conveyor rises and transports the empty bucket to the feeding position, which blocks the photoelectric switch and sends a signal to the PLC. At this time, the PLC inputs a signal to the PLC Start the peeling operation and provide feedback to the upstream material picking machine operator through photoelectric indicators, allowing material picking to begin. When the set weight is reached, the material picking machine automatically stops and the conveyor rises to complete the material bucket discharge operation, and then transfers to the transport line.

The weighing hopper machine adopts a mobile and fixed feeding and discharging position method for material transportation. According to the actual situation on site, the bin position is set as the feeding and discharging position, and a chain conveyor is set up. After the PLC issues the feeding command, the transfer machine starts to deliver two buckets of materials to the conveying position at the same time. The conveyor rises and rotates to send the materials to the feeding machine. After the feeding machine detects the materials, it moves to the selected material bin. The feeding machine's frequency converter starts to lift at high speed to the deceleration position, and the speed is reduced to pour the materials into the corresponding bin. To ensure that the materials are fully emptied, it is controlled by the PLC program to be delivered twice. The principle followed in the mixing process of the Weighing system is "add the raw materials with a large proportion first, add the materials with a small proportion later, add the materials with a light specific gravity first, and add the materials with a heavy proportion later.

The weighing feeder adopts a frame, a feeding hopper, and a discharging hopper. The discharging hopper is fixed on the frame, and the feeding hopper is located at the top of the frame. A feeding pipe is inserted into the feeding hopper, and a weighing scale is used. The electronic weighing scale is located below the hopper in the storage box, the weighing module is located below the storage box, the storage rack for placing the weighing module, and the driving device for driving the displacement of the storage box. The driving device adopts a first connecting column and a second connecting column connected to the storage box, a fixed column hinged to the bottom of the first connecting column, a pushing cylinder connected to the bottom of the second connecting column, a fixing plate for fixing the first pushing cylinder and the bottom of the fixed column, and a driver located at the bottom of the fixing plate. The bottom of the second connecting column is connected to The cylinder shaft of the pushing cylinder is hinged, and the storage box can be opened towards the discharge hopper by pushing the cylinder, There is a distance between the drive shaft of the driver and the fixed plate in the state where the storage box is in contact with the weighing module. There are two sets of drive devices located on both sides of the storage box.

The storage box of the weighing feeder is pressed against the weighing module, and the displayed value is reset to zero, thereby avoiding data errors caused by calculating the weight of the storage box and its connected components; The driver starts and drives the fixed plate to move the storage box upwards until it separates from the weighing module. Raw materials are added to the feeding hopper through the feeding tube, and the raw materials in the feeding hopper enter the storage box. When the weight of the raw materials in the storage box is about the set value, the driver controls the fixed plate to move the storage box downwards until it is against the top surface of the weighing module, so that the weighing module can weigh and measure. When the weight reaches the set value, the feeding tube stops feeding; The driver is activated to control the fixed plate to drive the storage box to move upward until the top surface of the fixed column corresponds to the top surface of the hopper scale. The cylinder is then activated to push the second connecting column to move upward. The first connecting column cooperates with the fixed column to open one side of the storage box towards the other side. The raw materials inside the storage box are poured into the hopper scale, and the raw materials in the hopper scale are transported to the raw material mixing equipment. By setting up a weighing scale, it is possible to avoid manually weighing and transporting raw materials to the raw material mixing equipment, thereby improving the feeding efficiency of this utility model and reducing labor costs and workload. When feeding, shifting the storage box upwards can prevent raw materials from splashing out of the storage box and protect the weighing module from impact during feeding, improving the installation of the weighing module and extending its service life, thereby improving the reliability of the present utility model. By pushing the cylinder to cooperate with the second connecting column and the first connecting column and fixed column, automatic discharge can be achieved, thereby improving the efficiency of the discharge of the present utility model. By setting up two sets of driving devices, it is easy for the driving device to drive the storage box for displacement, which improves the stability of the storage box and enhances the force strength of the driving device, thereby improving the reliability of the present utility model.