Pressing drive system of juicer for fruits and vegetables

Abstract

A pressing drive system of a juicer for fruits and vegetables is especially applicable to making of orange juice, lemon juice and the like. Pressing action and speed adjustment of a pressing beam are achieved in ways that a synchronous belt is in meshed multi-face contact with synchronous pulleys, the pressing beam is driven by the synchronous belt to reciprocate along columns of the juicer, and a stepping motor is controlled to drive the synchronous belt. The pressing beam is large in speed ratio, high in action frequency, low in vibration noise and long in service life, the system light in mechanism weight, high in transmission mechanism and low in energy consumption, pressing action modes are adjustable and variable, and juicing processibility is high.

Description

technical field [0001] The invention belongs to article processing technology, and relates to a squeezing drive system of a fruit and vegetable juicer, especially suitable for squeezing citrus, lemon juice and the like. Background technique [0002] The stamping juice extractors used in the existing fruit and vegetable processing, especially the citrus juice extractors, all adopt the squeeze drive system with cams and springs, such as the bowl type juice extractors of FMC Company of the United States, FOMESA Company of Spain and Yangzhou Fuersi Company. machine, and application number 200910183678.7 "A Juicer Drive System", which belongs to this prior art. In this drive system, the beam connected to the pressing mechanism is driven down along the column by the contour surface of the cam through the roller, and the return action of the beam is realized by the spring or the conjugated return cam. The disadvantages are: 1) The roller and the cam are Rigid line contact, strong ...

AI Technical Summary

Problems solved by technology

In this drive system, the beam connected to the pressing mechanism is driven down along the column by the contour surface of the cam through the roller, and the return action of the beam is realized by the spring or the conjugated return cam. The disadvantages are: 1) The roller and the cam are Rigid line contact, strong contact pressure, small force transmission, easy to wear; 2) spring fatigue failure, resulting in drive failure, short working life; Large, unbalanced, vibration, and noise all hinder the increase in the frequency of pressing action; 4) The force of the cam on the beam is not parallel to its movement along the column, the lateral force is large, the friction resistance between the beam and the column is large, and the transmission efficiency is low; 5 ) In a working cycle, the juicing process requires the slow movement of the pressing beam for a certain period of time, and the fast movement for a certain period of time. Then the center distance of the cam profile surface changes when the hour is large. When the beam is required to move fast, the cam profile line becomes steeper and the cam rotates. When the resistance is increased, it is necessary to ensure that the driving force is sufficient, so the required power and mechanism strength are greatly increased. When it should be fast, it is not fast enough, and when it should be slow, it is not slow enough, and the ratio of beam speed to slow is small; The shape line is not suitable for the change of pressing action mode, that is, the requirements of flexible and diverse juicing processing technology

Images