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中文简体In the design and development of modern blenders, the morphological structure of the blade is one of the key factors to improve the performance of the equipment. During the design process, engineers need to comprehensively consider the interaction between fluid dynamics and solid mechanics to ensure that the blade can efficiently complete its mixing and crushing functions. In the current market, blenders generally use four-blade, six-blade or even eight-blade blade groups, which form a complex three-dimensional mixing path through the combination of blades in different directions and angles. This design not only improves the mixing efficiency, but also effectively responds to the processing needs of a variety of ingredients.
In specific applications, the horizontal blade is mainly responsible for rapid crushing and rotary cutting of ingredients, while the angled blade forms an internal vortex by flipping the raw materials up and down to ensure all-round mixing and uniform crushing. The edge of the blade usually adopts a serrated or wavy cut. This irregular cut surface design can generate stronger shear and crushing forces at high speeds, especially suitable for processing fiber or frozen ingredients. The thickness control of the blade is crucial, both to ensure sufficient strength to prevent deformation and to control within a reasonable range to reduce air resistance, thereby improving the operating energy efficiency ratio. In addition, the dynamic balance design of the cutter head assembly should also be precise to avoid eccentricity during high-speed rotation, prevent increased noise, increased vibration, and even additional burden on the motor.
In terms of power transmission, the connection method between the cutter head and the motor shaft directly affects the transmission efficiency and long-term stability of the equipment. Common connection methods include metal couplings and gear meshing structures, while some high-end models use magnetic transmission systems or self-lubricating bearings to further reduce wear and energy loss. In the selection of bearings, high-precision bearings that are resistant to high temperatures and wear must be used to ensure smooth and stable rotation under continuous high-speed operation. In addition, the combination of the cutter head and the mixing cup should have good sealing and anti-seepage design, usually using a double sealing ring and a leak-proof gasket combination structure to prevent liquid from penetrating into the motor compartment, causing short circuits or corrosion problems, and also have the effect of shock absorption and noise reduction.
In terms of safe use, the cutter head assembly needs to be equipped with multiple physical and structural protection measures to avoid damage caused by accidental touch. Some blender brands have introduced an automatic cup lock mechanism in their designs to ensure that the motor will not start until the blender cup is fully engaged with the machine base, thereby effectively preventing splashing or exposed operation of the blade due to loose cup body. At the same time, the edge of the blade has been specially passivated to reduce the risk of scratches caused by accidental contact during use without affecting cutting efficiency. For blenders with heating functions, the blade must also have good thermal conductivity and thermal shock resistance to prevent material fatigue or structural fracture caused by temperature difference changes.
From the perspective of cleaning and maintenance, the removal and installation design of the blade assembly should be as simple and quick as possible. The use of a screw-type buckle structure or a one-button release design can significantly improve the user's daily cleaning convenience. At the same time, the internal structure of the blade should reduce gaps and grooves to prevent the accumulation of food residues and avoid bacterial growth. Some high-end products also introduce one-piece injection molding technology to tightly combine the blade base with the connector to eliminate odor and hygiene hazards caused by water accumulation in the gap. In order to improve the self-cleaning ability of the cutter head, some designs set a reverse blade under the cutter group, using the water flow and vortex formed during rotation to build a self-circulating flushing mechanism, thereby significantly improving the overall hygiene level.
