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Location:Home > Industry news > The working principle of quantitative packing scale

The working principle of quantitative packing scale

Addtime:2017/7/17 15:48:51  Views:659


The working principle of the quantitative scale
A) component
The weighing scale is usually composed of a feeding device, a loading device, a feeding device, a frame, and a control appliance.
Feeding device: due to the different flow of materials, design for material device is also very different, for granular materials with good fluidity, can choose the arc valve feeding, when the valve is opened, because of the gravity, automatic material flow from the living door, also can use the vibration trough, through vibration the frequency and amplitude control of the trough, the materials in the trough along the trough, to control the feeding purpose; for powdery materials with poor liquidity, usually spiral (auger) propulsion forced feeding; for particles and powder mixed materials (such as: animal feed) is usually used small belt conveyor feeding.
In order to ensure the accuracy of measurement and appropriate work efficiency, usually use the fast and slow two stage feeding form to add material to the loading device. Loading device: the loading device is connected with the sensing part to control the feeding process of the feeding device, and the loading device must also have the automatic unloading (unloading) function of the material that has been measured. Filling device: after the weighing, carrying automatic unloading device, the device will be filling material into a container, canned device for small quantitative scale for simple conical hopper, conical canned device for large quantitative scale of the bucket is arranged at the outlet of a bag holding unit, filling can be pocket clip at the outlet, canned device of powder material it should be equipped with air outlet to provide air pocket return channel, reduce dust by mouth overflow.
B) working principle
Quantitative scale work, usually by fast feeding quickly adding materials to the bearing device, when the bearing device material reaches a certain weight, fast charging system to stop working, determine the true weight bearing materials in the device, adjust the next weighing cycle feeding parameters, the open unloading device, loading the material into container.
Due to the fast feeding feeding speed, stop fast feeding is often higher than the weight of packaging, through the fast charging period of stable weight down to the true value, the fine feeder to continue working until the weight reaches the set value, stop by stable real weight weighing weighing cycle.

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