Circular Cam: When the cam is circular, the movement of the rotor is relatively stable. During the rotation process, the change in the volume of the chamber formed between the rotor and the pump body is relatively uniform, resulting in a relatively stable conveying flow rate of the chocolate syrup with a small pulse. It is suitable for situations where high flow stability is required, and the chocolate syrup has a low viscosity and good fluidity, enabling relatively accurate and continuous conveying.
Elliptical Cam: When the elliptical cam rotates, the rate of change of the chamber volume will show a certain periodic change, causing the conveying flow rate to have a corresponding periodic fluctuation. However, this fluctuation is relatively regular. In some chocolate production processes that require a certain flow fluctuation or different flow rates at different stages, the elliptical cam can meet specific flow change requirements by reasonably designing parameters such as the ratio of the major and minor axes of the ellipse.
Special Curve Cam: Cams with shapes such as sine curves and Archimedean spirals can precisely control the change rule of the chamber volume according to the specific production process requirements, thus achieving more complex flow changes. For example, in the chocolate coating process, it may be necessary to convey the chocolate syrup at a slower flow rate in the initial stage and then gradually increase the flow rate. The cam with a special curve shape can meet this complex flow change requirement by designing a specific curve equation, improving the quality and uniformity of the chocolate coating.
