JPH09253510A - Rice milling machine with small rice remover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to discharge rice of a uniform grains by removing small rice and to surely and smoothly remove the small rice without clogging meshes with the small rice. SOLUTION: The base of the discharge chute 72 of a rice milling machine which discharges the rice milled by a grain polishing chamber 4 via the discharge chute 72 is composed of a net-like member 72a. A sieving function is added to the discharge chute 72. The discharge chute 72 is moved back and forth in the discharge direction and the direction opposite thereto by utilizing a driving device 5 for driving a grain milling roll 4 disposed in the grain polishing chamber 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice polishing machine for removing rice having a rice removal function for removing immature and small rice mixed in white rice.

[0002]

2. Description of the Related Art Conventionally, in a rice milling machine, unpolished rice and paddy put in a hopper are sent to a feed roll chamber, and after being sent to a whitening chamber by rotation of a feed roll in the feed roll chamber, a whitening roll in the whitening chamber is then fed. And the pressing force of the resistance disk provided at the outlet adjusts the mortgage to a whiteness and polishes the rice. The rice husks and bran generated in the whitening chamber at the time of the above-mentioned rice polishing are removed from the mesh surrounding the outer periphery of the whitening roll to the outside by suction by a fan.

[0003]

A large amount of immature and small rice is mixed in the rice that has been cut by the combine, and the immature and small rice is mixed in the above-mentioned conventional rice. When the rice is milled with a rice mill, the sufficiently small ones are removed from the mesh through the mesh surrounding the outer periphery of the whitening roll, but those larger than the mesh cannot be removed and the rice is milled. Therefore, there is a problem in that immature and small white rice is mixed with the polished rice and the grains of the white rice become uneven.

[0004]

A rice polishing machine equipped with a small rice according to claim 1 of the present invention is a rice polishing machine for discharging rice polished in a whitening chamber through a discharge chute, and the bottom surface of the discharge chute is reticulated. The discharge chute has a sieving function as well as a member.

According to a second aspect of the present invention, in a rice polishing machine equipped with small rice, a discharge device for driving a polishing roll provided in the polishing chamber is used to reciprocate the discharge chute in the discharge direction and the opposite direction. It is configured as follows.

The above-mentioned sieving function can be achieved not only by reciprocating the discharge chute as described in claim 2, but also by vibrating the discharge chute by a vibrator.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the entire construction of a rice polishing machine with a small rice according to the present invention.

In the figure, reference numeral 1 is a housing for covering the outer periphery of a rice polishing machine for attaching small rice, and inside the housing 1, a hopper 2, a feed roll chamber 3, a whitening chamber 4, a drive unit 5 and the like are provided.

The hopper 2 is provided in the upper part of the housing 1 and has a lower end opened as a discharge port 21. The discharge port 21 is communicated with the feed roll chamber 3 via a communication passage 22.

A shutter 23 is provided in the communication passage 22. An operation lever 24, one end of which is projectingly arranged outside the side surface of the housing 1, is connected to the shutter 23, and the shutter 23 is configured to open and close the communication passage 22 by operating the operation lever 24.

Inside the feed roll chamber 3, a feed roll 31 having a spiral portion 32 on its outer peripheral surface is horizontally arranged.

The whitening chamber 4 communicates with the front of the feed roll chamber 3. In the polishing chamber 4, a polishing roll 41 having stirring blades 42 on the outer peripheral surface is horizontally arranged.
The rice polishing roll 41 and the feed roll 31 are coaxially and integrally provided, and are configured to be rotatable by the drive of a drive device 5 described later.

The whitening chamber 4 is divided by a mesh member 4a surrounding the outer circumference of the whitening roll 41, and a recovery hopper 6 is arranged below the whitening chamber 4. Collection hopper 6
Collects rice husks and bran that are removed outward through the mesh of the mesh member 4a of the whitening chamber 4. The collection duct 61 communicates with the fan 62, and the exhaust duct 63 passes through the fan 62 to the outside. Is discharged to.

A discharge port 43 is formed on the discharge side (left side in FIG. 1) of the polishing chamber 4, and a discharge chute 7 is provided at the discharge port 43.

In the vicinity of the discharge port 43, the whitening chamber 4
A resistance disc 44 is provided, which serves as a resistance when the rice milled in (1) is discharged from the discharge port 43. This resistance disc 4
Reference numeral 4 gives an appropriate pressing force to the paddy and brown rice in the polishing chamber 4, and the whiteness of the rice to be polished is adjusted by making the pressing force variable.

The discharge chute 7 is composed of a detachable first chute 71 which is continuously provided below the discharge port 43, and a second chute 72 which is arranged below the first chute 71. .

The first chute 71 and the second chute 7
The second chute 7 is arranged in a state of being inclined downward.
The discharge end of 2 extends laterally of the housing 1.

The bottom surfaces of the first chute 71 and the second chute 72 are composed of mesh members 71a and 72a.

The mesh of the mesh member 71a has a size such that straw dust larger than white rice is left behind and all of the white rice is dropped downward. The mesh of the mesh member 72a is immature mixed with the polished rice. The size is set so that small rice can pass through.

Further, the second chute 72 is reciprocally movable in the discharge direction and the opposite direction by a power transmission mechanism 8 described later.

A recovery hopper 73 is arranged below the second chute 72. The recovery hopper 73 is for collecting the small rice that is removed outward through the mesh of the mesh member 72a on the bottom surface of the second chute 72, and is communicated with the fan 62 by the recovery duct 74, and passes through the fan 62. It is discharged from the discharge duct 63 to the outside.

The drive unit 5 is arranged at the bottom of the housing 1, and the drive shaft 51 is connected to the pulleys 52, 5 respectively.
3. The pulley 5 is linked to the rotary shaft 33 of the feed roll 31 and the whitening roll 41 via the belt 54.
5 is linked to the rotary shaft 62a of the fan 62 via 5 to rotate the feed roll 31 and the whitening roll 41 and the fan 62.

The power transmission mechanism 8 includes a pulley 81 provided in the middle of the rotary shaft 33, a rotary shaft 84 having a pulley 83 linked to the pulley 81 via a belt 82 at one end, and a rotary shaft 84. The other end of the shaft 84 and the second chute 7
2 and a link mechanism 85 provided between the two.

The link mechanism 85 has a rotating body 851 fixed to the other end of the rotating shaft 84, and a vertical link 8 eccentrically connected to the rotating body 851 from the axis of the rotating shaft 84.
52, both ends of the vertical link 852 and the second chute 72.
And a swinging link 853 having a substantially V shape connected to and.

The link mechanism 85 converts the rotational movement of the rotary shaft 84 into vertical movement by the rotary body 851 and the vertical link 852, and then moves the vertical movement in the front-back direction by the swing link 853. It is converted into motion and transmitted to the second chute 72. That is, as the vertical link 852 reciprocates up and down, the swing link 853 moves in the intermediate portion 8 thereof.
It swings back and forth around 54 as a fulcrum, which causes the second chute 72 to reciprocate back and forth.

Therefore, the second chute 72 can be reciprocally operated at a desired speed by appropriately setting the rotation ratio of the pulleys 81 and 83.

The vertical link 852 is composed of a rotary member 85.
Up and down 2 to smoothly convert the rotary motion of 1
The members 852a and 852b are flexibly connected.

Next, the operation of the rice polishing machine with small rice thus constructed will be described.

The rice and brown rice put into the hopper 2 are dropped into the feed roll chamber 3 by opening the shutter 23 with the operation lever 24, and conveyed to the whitening chamber 4 by the feed roll 31 of the feed roll chamber 3. To be done.

In the whitening chamber 4, the whiteness of the rice is adjusted to an appropriate whiteness by the action of the whitening roll 41 and the pressing force applied by the resistance disk 44, and the resistance disk 44 is discharged from the discharge port 43.
And is discharged to the first chute 71.

At this time, the rice husks and bran generated by the rice polishing in the polishing chamber 4 are the mesh members 4a for partitioning the polishing chamber 4.
After passing through the mesh, the suction force of the fan 62 removes it from the exhaust duct 63 through the recovery duct 61 and the fan 62 to the outside of the machine.

While the white rice carried into the first chute 71 flows over the net-like member 71a on the bottom surface of the first chute 71, the straw debris larger than the white rice remains on the net-like member 71a, and all the white rice comes from the mesh. It falls on the upstream portion of the second chute 72.

The white rice carried in or dropped on the second chute 72 is sifted by the reciprocating motion of the second chute 72 when being conveyed by the second chute 72, and the white rice smaller than the mesh of the mesh member 72a. Is removed from the exhaust duct 63 to the outside of the machine by passing through the mesh and passing through the recovery duct 74 by the suction of the fan 62.

Since the second chute 72 reciprocates in this manner, sufficient sieving can be performed, and small rice can be reliably and smoothly removed without clogging the mesh. Therefore, the second shoot 7
From the discharge end of No. 2, a uniform grain of white rice from which small white rice has been removed is discharged.

In this embodiment, the second chute 7
A description has been given of the case where the second chute 72 is provided with a sieving function by reciprocating the second chute 72, but the present invention is not limited to this, and the second chute 72 is vibrated by an exciter to perform a sieving function on the second chute 72. May be added.

[0037]

According to the rice milling machine equipped with the small rice according to claim 1,
By configuring the bottom of the discharge chute with a mesh member and adding a sieving function to the discharge chute, it is possible to discharge rice while sifting rice in the discharge chute, removing small rice and discharging uniform grain rice It is possible to do, without the small rice clogging the mesh,
The small rice can be removed reliably and smoothly.

According to the second aspect of the present invention, the rice milling machine for removing rice is constructed so that the discharging chute is reciprocated in the discharging direction and its opposite direction by utilizing a driving device for driving the polishing roll provided in the polishing chamber. As a result, it is possible to provide a rice milling machine that removes small rice with a simple configuration using an existing drive device without using a separate drive device.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the configuration of a rice polishing machine with rice removal according to the present invention.

[Explanation of reference numerals] 4 whitening chamber 5 drive device 72 second chute (discharging chute) 72a mesh member 8 power transmission mechanism

Claims (2)

[Claims] 1. A rice milling machine for discharging rice milled in a whitening chamber through a discharge chute, wherein the bottom surface of the discharge chute is composed of a mesh member, and a sieving function is added to the discharge chute. A characteristic rice polishing machine with small rice. 2. A structure configured to reciprocate the discharge chute in a discharge direction and a reverse direction thereof by using a driving device for driving a whitening roll provided in the whitening chamber.
The listed rice milling machine with small rice.