科研之友
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摘要
In this investigation, leaf-splitting unit was designed and fabricated for Aloe vera gel expulsion machine. The splitting unit consisted of grip roller, reciprocating blade, rotary disc and eccentric drive. The rotary motion was converted into the reciprocating drive with slanted rotary disc mounted on shaft. The grip roller was covered with spongy material to hold the A. vera leaf without breaking rind. The design parameters included were grip roller dimensions and speed, stroke of reciprocating blade and size of rotary disc. The leaf was inserted between two grip rollers and splitting into two halves carried out by reciprocating knife. The splitting unit was tested for different speed of grip expulsion roller and leaf thickness. It was concluded that for getting maximum gel recovery, minimum residual gel percentage, highest expulsion efficiency and output capacity, the leaves should be split in splitting unit and the A. vera gel expulsion should be carried out at 75 rpm roller speed for 25-30-mm thickness of A. vera leaves.
- 出版日期2014-8
