| 摘要 |
PURPOSE: To provide a sand feeding apparatus capable of accurately feeding a certain quantity of sand into vinyl bags by supplying a constant quantity of sand automatically and accurately, thereby solving various problems caused by a manual operation. CONSTITUTION: An apparatus for feeding sand comprises a sieve(10) for supplying the sieved sand to the lower side by sieving sand; a shaking means for shaking and supporting the sieve relative to a frame; a hopper(20) which is installed under the sieve so that the sieved sand is supplied to the hopper, and on the bottom of which supply holes(26) are formed; a supply screw(22) installed directly above the supply holes inside the hopper and rotated by a driving source; a control member(30) installed under the supply holes and equipped with communication holes communicated with the supply holes and a blocking part for blocking the supply holes; and a control means for straightly reciprocating the control member to a certain distance to correspond the communication holes to the supply holes or block the communication holes through the blocking part.
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