Squeezing screw component with juice separation function and juicer using same

Abstract

The invention discloses a squeezing screw component with juice separation function and a juicer using the same in the field of juice processing technology. The component is provided with a juice collection cavity surrounding each diversion trench outlet on a squeezing screw shaft. The squeezing screw component can be applied to a spiral juicer. The squeezing screw not only maintains the original conveying and pressure building functions, but also increases the effective separation area of unit volume of fruit paste at constant capacity of a spiral groove. The juice bidirectionally penetrates through a juice filtering cylinder and a squeezing screw sleeve, thereby shortening the juice penetration path and reducing the penetration resistance at constant depth of the spiral groove. A high-pressure separation section is added to the tail end of the squeezing screw, which reduces the force pushing capability of the spiral edge against fruit paste, prolongs the separation time of the pressed fruit paste and is beneficial to sufficient juice separation. The squeezing screw component avoids reverse osmosis and dispersion of juice caused by the spiral edge stirring the fruit paste, is beneficial to the formation of a relatively stable quasistatic filter pressing process, and reduces juice residue in fruit residue.

Description

technical field [0001] The invention belongs to the technical field of fruit juice processing, and in particular relates to a screw extractor assembly with a juice separation function and a juice extractor using the screw extractor assembly. Background technique [0002] The screw juice extractor uses the rotation of the variable-pitch screw located in the juice filter cylinder to convey the fruit paste. Through the adjustment of the pitch, groove depth and outlet resistance, the fruit paste in the juice filter cylinder is under pressure during the conveying process, and the juice passes through the filter. The fine holes on the juice cartridge are discharged to complete the juicing operation. [0003] The screw juicer is a traditional equipment for the industrial processing of fruit juice, and it is also the earliest continuous working juicer equipment put into use. The screw extractor produces a high compressive force on purees and can be used for juicing hard fruits and ...

AI Technical Summary

Problems solved by technology

After the fruit pulp is pressed in the squeezing chamber of the screw juicer, the squeezed juice can only be discharged from the juice filter tube around the screw, and because the pressure of the screw juicer is high, in order to ensure the rigidity and strength of the juice filter tube, the filter The juice cylinder is generally made of perforated steel plate, and the opening rate should not be too high; and in order to block the pomace, the hole diameter of the punching hole is small, which further limits the improvement of the opening rate and reduces the effective separation area

[0008] 2. One-way seepage results in long juice flow in the pressing process

Since the sides of the squeezed snails in contact with the fruit pulp have no function of permeating the juice, the juice can only be discharged from the filter cartridge around the squeezed snail, and the longest penetration path is the depth of the entire screw groove, causing the juice to flow through the pomace layer. High resistance, low separation efficiency

[0009] 3. The pressing time is short, and the juice of the pressed pulp is not enough

The pressing process of the screw juicer is continuous. The screw edge of the existing screw squeezer continues to the discharge port. The pushing and stirring capabilities of the end of the screw squeezer are too large, so that the juice in the fruit pulp that reaches the highest pressure cannot be fully separated. Reduced separation efficiency

[0010] 4. The stirring effect on pomace is too strong before the end of pressing

Static and stable under pressure, the juice is squeezed out by cutting the pores, and the excessive agitation of the pulp will destroy the porosity gradient or juice residual gradient in the direction of juice penetration, forming the reverse osmosis and diffusion process of the juice, which affects the stability of the juice discharge

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