JPS6240681Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is an improvement of the milling roll for milling paddy or brown rice into milled rice. It may get crushed inside the cylinder.

Furthermore, if the whitening roll is started with grains remaining in the whitening cylinder, a significant load will be applied to the motor.

As described above, the present invention aims to prevent the generation of broken rice in the polishing cylinder and to prevent overloading of the motor when starting the polishing roll.

To explain the present invention with reference to the embodiment shown in FIGS. 1 and 2, the base end of the spiral thread 2 formed by a bullet is fixed to the rotating shaft 1, and the tip is made a free end to expand and contract the thread spacing. Form as you like.

In the other drawings, 3 is a porous polishing cylinder with a hole for removing bran, 4 is a supply hopper, 5 and 6 are bearings of the rotating shaft, 7 is an input pulley attached to the rotating shaft 1, and 8 is a milling cylinder 3. The discharge lid that presses the tip discharge port is shown.

In the present invention, grains such as paddy or brown rice supplied from the hopper 4 into the milling cylinder 3 are stirred by the rotating spiral strip 2 and polished by friction, and then the discharge lid 8 is pushed and the grains are discharged out of the machine.

However, the pressure P of the discharge lid 8 is too strong and the polishing tube 3
When the density of grains in the polishing tube 3 increases, as shown in Fig. 2, the spiral strips 2 automatically reduce the spacing between the threads to reduce the amount of grains transferred and prevent grains from clogging inside the polishing tube 3. When the grain density in the milling barrel 3 is restored to its normal state, the spiral strips 2 automatically expand the thread spacing due to their elasticity, increasing the amount of grain transferred and milling. Perform work efficiently.

When the whitening roll is started with grains remaining in the polishing barrel 3, the spiral threads near the drop opening of the hopper 4 are pushed by the grains and automatically rotate while reducing the thread spacing. Overload can be prevented without forcing the motor.

In this way, according to the present invention, since the milling roll is formed by the spiral thread 2 whose base end is fixed to the rotating shaft 1 and whose tip is a free end so that the thread spacing can be freely expanded and contracted, the grain inside the milling cylinder 3 is Depending on the density of the grain, the thread spacing is automatically reduced to prevent rice from breaking, the motor is prevented from overloading during startup, and the thread spacing is automatically expanded to efficiently mill the grain. This effect is produced.

The rotating shaft 1 in the present invention may have a length up to the vicinity of the drop opening of the hopper 4, as shown in the embodiment shown in FIG.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the main parts of an embodiment of the present invention, FIG. 2 is a side view of the main parts with reduced thread spacing, and FIG. 3 is a side view of the main parts of another embodiment. 1 is the rotating shaft, 2 is the spiral strip, 3 is the whitening tube, and 4 is the hopper.

Claims (1)

[Scope of utility model registration request] This whitening roll is made by fixing the base end of a spiral strip formed by a bullet to a rotating shaft and leaving the tip free, so that the spacing between the threads can be expanded or contracted.