Spiral oil squeezing rod

Abstract

The invention discloses a spiral oil squeezing rod. The spiral oil squeezing rod comprises a squeezing screw shaft (1) of which the diameter is gradually increased from a feeding end to a discharge end of an oil press, and a thread (2) arranged on the squeezing screw shaft (1), wherein the thread (2), of which the thread pitch is sequentially increased gradually, is arranged on the squeezing screw shaft (1); the squeezing screw shaft (1) comprises a first squeezing screw shaft (3), a second squeezing screw shaft (4) and a third squeezing screw shaft (5); convex hinder rings (6) are arranged on the first squeezing screw shaft (3) and the second squeezing screw shaft (4); keyways (7) are arranged in the hinder rings (6); the first squeezing screw shaft (3), the second squeezing screw shaft (4) and the third squeezing screw shaft (5) are spliced together through the keyways (7); the thread pitch of the third squeezing screw shaft (5) is smaller than the thread pitch of the second squeezing screw shaft (4); the thread pitch of the second squeezing screw shaft (4) is smaller than the thread pitch of the first squeezing screw shaft (3); and the diameters of the first squeezing screw shaft (3), the second squeezing screw shaft (4) and the third squeezing screw shaft (5) are sequentially increased.

Description

technical field [0001] The invention mainly relates to an oil pressing device, in particular to a screw oil pressing rod. Background technique [0002] Camellia seed oil, commonly known as camellia oil, also known as camellia oil and camellia seed oil, is a pure natural high-grade edible vegetable oil extracted from the mature seeds of common Camellia oleifera in the family Theaceae. The oil content of camellia oleifera seed is generally 25-35%. The extracted camellia oleifera seed oil mainly contains unsaturated fatty acids such as oleic acid and linoleic acid. Its fatty acid content and ratio are very similar to olive oil, and it is known as "Oriental olive oil". , and even some nutritional indicators are higher than olive oil. Because the whole growth process of Camellia oleifera does not need to use chemical fertilizers and pesticides, the camellia fruit grows from flowering to maturity, and after the rain and dew in winter, spring, summer, and autumn, it absorbs natura...

AI Technical Summary

Problems solved by technology

[0003] The structural design of the screw oil extraction rod in the prior art is unreasonable, which leads to low squeezing efficiency of the raw material, high residual oil rate, and tea seeds cannot be fully utilized. Most of the conventional oil extraction rods are made of 45 steel. It has the problems of poor strength and easy wear

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