JPS5932954A - Rice refining machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a rice milling machine that can prevent overloading from occurring.

Generally, this type of rice polishing 4'A is done by rotating a 4'11 rice wheel and rubbing it against brown rice.

When the grain used for profit changes, or when the grain quality changes due to moisture content, the negative rust on the rice milling rolls changes and the drive motor becomes overloaded, and on the other hand, the polishing level of the polished rice changes. There were disadvantages such as changes in

The purpose of the present invention is to produce <'4'r rice with stable quality and high efficiency, and to prevent overload operation of a rice milling machine.

The invention will be explained by way of examples in the accompanying drawings.

A rice milling chamber 2 is connected to the bottom of the hopper 1 as shown in Fig. 1,
A rice milling roll 3 is provided in the rice milling room 2, and the grains are milled by friction caused by the rotation of the rice mill, and the circulation path 4 is raised.

In this way, grains are milled while being circulated in the rice chamber 2.

The pulley 6 of the rice milling roll 3 is excited by a transmission device fj:j7 such as a belt or chain from the drive motor 5.

The C resistor 8 is inserted into the circulation path 4 so that it can move forward and backward. This resistor 8 acts as a grain circulation load during the rice milling operation, and its protrusion IV changes the milling blade.

Base male screw 10' of resistor 8? i: A female thread that engages with the female thread 11 is provided integrally with the shaft 12' of the friction disk 12.

Drive rollers 13 and 14 are disposed on both sides of the circumferential end of the friction disk 12 so as to sandwich them therebetween.

The shaft 13.14 of the drive roller 13.14 is the roller base J.
9, the gear 15 of the shaft 13' meshes with the gear 16 of the shaft 14' via intermediate wheels, and the shafts 1; 3' are driven by a tension roller 18 by a rotation transmission wire 17. It is assumed that the tension roller I8 is rotated by a single-piece transmission device 7.

The roller base 19 is supported so as to be movable in the horizontal direction, and has threads/idols 20, 21 connected to both ends.

The shaft 13', the gear 15, and the drive roller J3 are rotated from the tension roller 18 via the rotation transmission wire 17. Also, the gear 15 rotates at the same time as the gear 16 via an intermediate gear, and the gear 15 is connected to the shaft 14'.
, the drive p-ra 14 rotates.

Roller base No. 19 arrow A1 is activated by applying solenoid.
9, and the &J solenoid '21 is operated to move the roller base No. 19 in the opposite direction of the arrow A19, and the drive roller I4 or it E sub-roller 13 contacts the friction disk 12, and the friction disk Rotation of the plate 12 causes the resistor 8 to advance or retreat due to the engagement of the female screw 11 and the male screw 10.

If the protrusion of the resistor 8 into the circulation path 4 is small, the grain circulation 8
Since the load per grain is small and the pressure applied to the grain is small, the frictional force is weak and the whitening blade is therefore small.

On the other hand, if the protrusion 11'r degree is large, the circulation load of grains will be large, the frictional force will also be large, and the clean white blade will be large. In this embodiment, this resistor 8 is connected to the circulation path 4.
Although it is shown in the figure, it is not limited to the circulation path 4, and the same effect can be achieved even if it is installed in the hopper IFA.
It is something that can be learned.

Figure 3 shows the automatic pressure adjustment circuit, where n is the motor 5.
5 is a comparison circuit that compares the output voltage of the conversion circuit 22 with a reference voltage for setting the whitening power, and 5 is a positive feedback circuit. The comparison circuit Z is a switching circuit that operates a solenoid or two slide/id by the two outputs, and has a voltage that changes according to a reference voltage and current value set by an adjustment resistor (not shown) for setting polishing power. Compare the deviation/id Δ] or operate the solenoid 21 to obtain +2'
The configuration shown in tJ, the circulation path 4 of the resistor 8 from the action G
The load on the motor 5 is adjusted by changing the protrusion amount z (Fig. A, 1) to change the degree of precision.

With the above configuration, the present invention always has one type of grain, one moisture content,
Constant 1゛~rice or automatically 1:4 according to changes in calving rate
It can be operated by anyone without the need for adjustment of the work load. In addition, excessive force is not applied to the grain when felling trees,
(Without damaging the grain and of good quality) [7 White grain can be obtained.

In addition, since the load can be adjusted visually during the rice operation, overheating of the drive motor and eventually Jtj 1JJ can be prevented. f
Since the lIs can be used, there is no need for an auxiliary motor, and there are many advantages such as being able to produce 6It at low cost.

[Brief explanation of the drawing]

Figure 111 is a longitudinal sectional front view of the present invention, Figure 112 is a schematic explanatory diagram of the main parts of the invention, and Figure 3 is an automatic voltage adjustment circuit diagram. 1... Hopper 2... Rice milling chamber 3... Rice milling roll 4... Circulation path 5... Drive motor 6... Pulley 7... Transmission device 8... Resistor 10... Male thread 11...Female thread 12...Friction disk 13.14...Drive roller 15.16...Gear 17...Rotation transmission wire 18...Tension roller rib, 21...Tsure /Id 22...conversion circuit...comparison circuit 24...stop 91 return circuit...su・ftsuching circuit agent patent attorney Yugai Saifuji 2 people @IrxJ

Claims (1)

[Claims] The rice milling roll (3) is transferred from the drive motor (5) to the transmission device (7).
), and in which a resistance f[j (8) is provided in the circulation path (4) so as to be freely retractable, the transmission device 1'? (7) A conversion circuit (22) that converts the electric current change of the EjiJ resistor (8) by the driving force from (7) and the electric current change of the MiJ drive motor (MiJ drive motor) and the output 'li of the conversion circuit (22)
E A rice milling machine that is fully equipped with an It calibration circuit 23) that compares FE with the reference voltage of the milling power setting, and operates according to the I+J 11IJ proposal by the output of the comparison circuit (23).