Working Principle

When the machine starts to operate, the hopper metering valve (level sensor) opens, the raw material is directly sent to the weighing disc (into the weighing hopper) composed of high-precision loading unit (weighing unit), and when the weighing hopper transmitter detects the weight reaches the preset value, it closes the metering valve. Another hopper metering valve opens, and so on, when all the raw materials are weighed and measured correctly, the whole batch of raw materials will be sent to the mixing tank for mixing. The high efficiency mixer will mix the raw materials evenly, and then fall into the storage tank or directly into the feeder of the moulding machine. A level sensor in the mixing bin controls the entire dosing process. Weighing and dosing of the raw material can be carried out using pneumatic valves alone or in combination with an electrically operated screw feeder.

Characteristics

1、PLC controller adopts advanced control algorithm, automatic adjustment compensation and vibration prevention function to ensure good batching accuracy.

2、Modular detachable structure design saves space and is convenient for clearing materials.

3、Stainless steel is used in the contact part with raw material to avoid raw material contamination and easy to clean.

4、System with statistics and quantitative mixing function, can count the amount of each kind of material per shift, optimise the consumption of raw materials, reduce waste.

5、The ratio or percentage between the raw materials can be set, easy to operate, accurate and stable continuous operation of the metering, mixing the raw materials at the same time as the next batch of raw materials for weighing and measuring.

6、Accurate and continuous control of weight, micro-measurement accuracy can be met 0.2~05%. The order of discharging each material can be pre-set.

7、With formula storage function, can store 100 groups of formula.

8、Graded security password control and alarm history record function.

9、It can be installed directly on the machine or installed beside the machine with optional stand.

10、Optional RS485 communication interface can communicate with the host to achieve automation and centralised monitoring.

Range of application

Weighing and metering machine is mainly used for injection moulding and extrusion, casting, compression moulding and blow moulding machines and other plastic processing industries that require a variety of raw materials in proportion to the accurate mixing of the use of raw materials, can be used as a raw material dosage station for a single moulding machine, but also as a raw material dosage and mixing centre for a number of moulding machines. The dosing machine can be mounted on a stand above the machine, or on a stand next to the machine, with a vacuum suction machine for conveying the raw material to the moulding machine, or on the floor above the moulding machine.

Product Specification Sheet