Directly falling powder type coffee grinding machine
View Patent ↗A coffee grinding machine includes a base, a motor and a grinding device. The motor is mounted in the base. The base has a top face provided with a platform for mounting the grinding device. The grinding device includes an outer cutter and an inner cutter. A bearing is mounted on the outer cutter to drive the outer cutter so that the outer cutter is rotated above the inner cutter to grind the falling coffee beans into coffee powders. Thus, the coffee powders fall down vertically and will not remain in the grinding device.
1. A coffee grinding machine comprising:
a base, a motor and a grinding device, wherein:
the motor is mounted in the base;
the base has a top face provided with a platform;
the platform is provided with a positioning hole for mounting the grinding device;
the motor is connected with a belt wheel by a belt, a gear or a chain;
the grinding device includes an outer cutter and an inner cutter;
blades of the outer cutter and the inner cutter cooperate with each other;
a bearing is mounted on and located above the outer cutter;
the bearing is connected with the belt wheel;
the belt wheel is rotated to drive the bearing so that the outer cutter is rotated at a high speed;
the inner cutter has a conic shape, and is mounted on a support seat;
the support seat has an interior ring provided with a plurality of through holes;
the inner cutter is mounted in the outer cutter by the support seat; and
the outer cutter is rotated about the inner cutter which functions as a center.
2. The coffee grinding machine of claim 1 , wherein a clearance is defined between the outer cutter and the inner cutter and is adjustable to control a size of coffee powder.