JPH02277558A - Automatically controlling device for load in vertical type rice milling equipment - Google Patents

Abstract

PURPOSE:To smoothly enable automatic control of load by providing a mechanism which is dislocated in the direction of rotation according to load of rice polishing between a center shaft and a rice milling roll. CONSTITUTION:When a hopper 46 is opened and unpolished rice 47 is supplied, this unpolished rice 47 is supplied into a grain feed chamber 3 and sent to the lower part by the grain feed screw 7 of a grain feed roll 5 for lower feeding and introduced into a polishing chamber A. Unpolished rice is agitated by the slantingly projected line 8 of a rice milling roll 6 in the polishing chamber 4. When rice polishing is progressed, load resistance is increased and the feed rate due to the grain feed screw 7 of the grain feed roll 5 is made plenty and reaction force is enhanced. Dislocation is caused between a hollow vertical shaft 9 and a driving shaft 13. Thereby the hollow vertical shaft 9 descends and both the grain feed roll 5 and the rice polishing roll 6 are moved to the lower part and polished rice is allowed to fall. Thereby miniaturization is enabled and precision enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of application in Lr industry) The present invention relates to an automatic load adjustment device in a vertical rice milling device.

(Prior art) Conventionally, for the purpose of preventing rice from breaking due to the load generated during rice milling and milling rice with a high yield, a downward feeding grain spiral was provided in the upper space of the vertical case a. In a vertical rice milling device in which a vertical rice polishing cylinder C is provided at a lower position of the grain spiral, and a vertical rice polishing roll d is provided in the polishing cylinder C, the rice polishing roll d has its lower end formed in a perfect circle, The lower end discharge part of the polishing tube C is formed into a perfect circle with a tapered part e that becomes smaller in diameter toward the bottom, and when there is no load, the polishing tube C
Regarding an automatic load adjustment device for a vertical rice milling device, the known Japanese Patent Publication No. 1983 discloses a load automatic adjustment device for a vertical rice milling device in which the polishing tube C is lowered to close the lower end discharge portion, and when under load, the polishing tube C is automatically raised to automatically open the lower end discharge portion. -1900 publication.

(Problems to be Solved by the Invention) In order to achieve the purpose of "preventing rice from breaking due to the load generated during rice milling and milling rice with a high yield," the rice milling roll d inside the vertical cage is rotated upward and downward. The structure is such that
The structure was such that the external polishing cylinder C was moved up and down, and the lower end discharge part was automatically closed or opened.

This configuration has the problem that the structure is inevitably large-sized and that it is particularly difficult to center the polishing tube C.

That is, since the polishing tube C surrounds the rice polishing roll d, its diameter is proportionally larger than that of the rice polishing roll d. Therefore, when the polishing tube C is designed to be moved up and down, a large diameter one is moved up and down, so the guide tube and the spring structure are all inevitably large.

In addition, the polishing cylinder C simply surrounds the rice polishing roll d in a concentric manner, and its surrounding state is only concentric and does not rotate. To be precise, the structure is quite distorted, and it is installed with a distortion of several millimeters. Therefore, when creating a structure in which the polishing tube C is rotated to move it up and down (it cannot be moved up and down unless it is rotated), the parts that do not have their centers exposed are forced to rotate, causing each part to squeak. It turns out.

(Objective of the Invention) Therefore, the present invention provides a dedicated rice milling device that is capable of automatic load adjustment with a compact structure and that can perform automatic load adjustment smoothly without any creaks.

Furthermore, the present invention provides a rice milling device that is higher grade than conventional ones.

In addition, the present invention provides a rice milling device that can be easily automated, and therefore does not cause broken rice due to erroneous operation even if rice milling technology is insufficient.

(Means for Solving the Problem) Therefore, the present invention has been devised by providing a downward feeding grain feeding spiral 5 in the upper grain feeding chamber 3 in the fibrous case 2 and a downward feeding grain feeding spiral 5 in the lower milling chamber 4 in the case 2. In a vertical rice milling device provided with rice milling rolls 6, each of the rice milling rolls 6 is provided with a mechanism that shifts in the rotational direction according to the rice milling load between the center shaft 9 that rotates the rice milling rolls 6 and the rice milling rolls 6 to prevent the shift. The rice polishing roll 6 is configured to move vertically depending on the time, and a resistance lid is provided at the lower end of the rice polishing roll 6. are integrally fixed, so that when there is no load, the rice milling roll 6 moves to close the milling chamber 4, and when there is a load, the rice milling roll 6 moves to automatically open the milling chamber 4. Automatic load rAl in vertical rice milling equipment! This is a device.

(Example) An example of the present invention will be described with reference to the drawings.
A fibrous case 2 of the rice milling machine is fixed at the upper position of the fibrous case 2, a grain feeding chamber 3 is formed in the upper space inside the fibrous case 2, and a milling chamber 4 is formed in the lower space inside the fibrous case 2. However, the structure above 0 in which the grain feeding room 3 and the milling room 4 are communicated vertically all around (360 degrees) applies to the vertical type, and does not apply to the horizontal type. Therefore, it makes sense and has advantages that the horizontal type does not have.

A downward feeding grain feeding roll 5 is provided in the grain feeding chamber 3, and a rice milling roll 6 having approximately the same diameter as the grain feeding roll 5 is provided in the milling chamber 4 (Fig. 3), 7 is the grain feeding roll 5. Single or double grain feeding spirals 5 and 8 are oppositely inclined at the inclined protrusions of the rice milling rolls 6.

A hollow vertical shaft 9 is provided at the center of the downward grain feeding roll 5 and the rice milling roll 6.

The upper end of the hollow vertical shaft 9 is made to protrude above the fibrous case 2 to form a protrusion 10 (the protrusion 10 may be configured without protrusion. Therefore, the protrusion 10 is an example), and the protrusion 1
0 is equipped with an F lower yJ joint pipe member through a bearing 11.
Two drive shafts 13 are mounted on the outer peripheral surface of the upper half of the hollow vertical shaft 9.
A spring is fitted between the hollow vertical shaft 9 and the drive shaft 13! 4 is provided with a ball 15 which is hit by a spiral groove 1 formed on the outer surface of the hollow vertical shaft 9 and extending vertically.
6. Therefore, when the drive shaft 13 rotates,
The hollow vertical shaft 9 is a spring! 4 and the ball 15, and when the resistance of the hollow vertical shaft 9 becomes heavy and there is a deviation in rotation, the hollow vertical shaft 9 moves downward by the action of the spiral groove 16. A driven pulley 17 is fixed to the upper end of the drive shaft 13.

A motor 18 is fixed to the side of the hard and soft case 2,
Drive pulley 19 of motor 18 and said passive pulley 1
7 and turn the belt.

Bearings 21.22 are provided on the outer peripheral surface of the drive shaft 13 at desired intervals vertically. A tube n is provided, and the bearings 21 and 22 are provided on the inner surface side of the fixed vertical tube n.
Join the outer sides of.

The upper end of the fixed vertical tube 23 is fixed to the ceiling plate 24 of the hard and soft case 2, and the lower end of the fixed vertical tube n is made a free end at an intermediate position between the upper and lower sides of the hard and soft case 2.

Inside the hollow vertical shaft 9, a ventilation passage δ is formed extending upward and downward;
The opening end of the air pipe is made to face the opening end of the ventilation path δ.

A rice milling roll 6 is fixed to the lower half of the hollow vertical shaft 9.

The rice milling roll 6 is formed of a silver-gold cylinder 27 with a diameter of up and down, and is fixed to the lower end of the grain feeding roll 5. A metal plate 29 with inclined protrusions 8 is fixed to the outer surface of the metal plate 29. A blowhole cut is formed in the shadow part of the protrusion 8, so that the wind blown out from the blowout port (9) formed in the hollow vertical shaft 9 is blown from the blowhole cut.

At the lower end of the whitening chamber 4, a suitable member is attached to form a lower end discharge part 31 formed into a perfect circle, and the lower end of the rice polishing roll 6 is made to protrude below the lower end discharge part 31 formed into a perfect circle.
A horizontal resistance cover η is provided on the protruding portion.

One end of the lever rod n is engaged with the vertically adjustable cylinder provided at the upper end of the hollow vertical shaft 9, and the upper end of the rod U that moves up and down is attached to the other end of the lever rod. The upper part of the rod U is passed through and hangs down, a flange r is provided at the lower end of the rod U, and an elastic spring is provided between the upper part of the rod U and the flange r. 6. 41 is the lower piece, 42 is the screw, 4
3 is cheat 2.

The outer periphery of the whitening chamber 4 is surrounded by a 6-8 square bran removal tube, and a bran removal chamber 45 is formed outside the bran removal tube 44.

Such rice milling equipment is usually installed in a single-seat circulation structure, but it may also be installed in a rice mill as a three-seat or four-seat system. In addition, 10 to 30
It is also sometimes used as a pedestal.

(effect) Describe the effect on the tide.

Prior to the work, when the screw 42 is rotated by rotating the screw 42 and the U-form frame 5 is moved downward, the upper piece I of the U-form frame 35 is
Since the spring 38 is moved downward and compressed, the elasticity of the spring 38 moves the collar π downward, and the other end of the rod 34 is moved down to tilt the lever north as shown in Fig. 7, and the lever Pull up the -E lower adjustment lever 12 through the -E. When the vertical adjustment cylinder 12 is pulled up, the bearing 11 is pulled up, so that the hollow vertical shaft 9
Pull up the protruding part 10 of.

Then, the downward feeding grain feeding roll 5 and the rice milling roll 6 fixed to the hollow vertical shaft 9 are pulled up, so the resistance lid fixed to the lower end of the rice milling roll 6 is pulled up, and the lower end discharge part of the milling chamber 4 is pulled up. 31 (as shown by the temporary line in Figure 4).

Therefore, when the motor 18 is energized, the drive pulley 19
→ Bell) 20 → Passive pulley 17 → Drive shaft 13 → Ball 15
The hollow vertical shaft 9 is rotated through the lower end discharge part 31, and the downward feeding grain feeding roll 5, rice milling roll 6, and resistance saving support are rotated.

Next, when the hopper 46 is opened and brown rice 47 is supplied, the brown rice 47 is fed into the grain feeding chamber 3, and is fed downward by the downward feeding/feeding i9 spiral 7 of the corrugating roll 5 and flows into the milling chamber 4. In the whitening chamber 4, the rice is stirred by the inclined protrusions 8 of the rice polishing rolls 6.

In this case, since the inclined protrusion 8 is inclined in the direction of returning the brown rice 47 upward, the brown rice 47 is raised as indicated by the white arrow.

As long as the amount of brown rice flowing into the whitening chamber 4 is not too large, there is little resistance, so use the resistance lid! As it rotates while closed, the rice polishing progresses, and the first grain becomes polished rice.

As rice milling progresses, the load resistance indicated by the black arrow increases, and the amount of grain fed by the grain feeding spiral 7 of the downward feeding grain feeding roll 5 increases, so the reaction force becomes higher and higher, and finally the hollow vertical shaft 9 This will cause a misalignment between the drive shaft 13 and the drive shaft 13. When misalignment occurs, the hollow vertical shaft 9 descends due to the relationship between the ball 15 and the spiral groove 16, the downward feed grain feed roll 5 and the rice milling roll 6 also move downward, and the resistor M32 descends, causing the lower end discharge portion 31 to move downward. Open it and let the polished rice fall out.

In the case of a milling machine that has completed one pass, the fallen polished rice can be guided directly to a stone removal machine, etc., in the case of a single-pass circulation system, it can be returned to the head, and in the case of a continuous milling machine, the resistance can be weakened and the rice can be passed on to the next machine.

(Effects) Conventionally, in order to prevent broken rice that occurs during rice milling and to mill rice with a high yield, a downward feeding grain spiral was provided in the upper space of the vertical case a, and the downward feeding grain spiral was In a vertical rice milling device, a vertical rice polishing cylinder C is provided at a lower position, and a vertical rice polishing roll d is provided in the polishing cylinder C, the rice polishing roll d has its lower end formed into a perfect circle, and the rice polishing cylinder C The lower end discharge part is formed into a perfect circle with a tapered part e that becomes smaller in diameter toward the bottom, and when there is no load, the polishing cylinder C descends to close the lower end discharge part, and when there is a load, the polishing cylinder C automatically opens. Regarding an automatic load adjustment device for a vertical rice milling device configured to automatically open the lower end discharge section by lifting up, there is a known Japanese Patent Publication No. 63-
It is described in Publication No. 1900.

In the known apparatus, the internal rice polishing roll d does not move up and down, the external polishing tube C moves up and down, and the lower end discharge part is automatically closed or opened. This configuration inevitably increases the size of the structure, and
In particular, there is a problem in that centering of the polishing cylinder C is difficult.

In other words, since the polishing tube C surrounds the rice polishing roll d, it itself has a large diameter. Therefore, when the polishing tube C is moved up and down, the one with a large diameter is moved up and down, so it is inevitably large. It becomes a structure.

In addition, although the polishing cylinder C concentrically surrounds the rice polishing roll d, the surrounding state is only concentric and does not rotate, so it cannot be strictly defined. When I looked at it, I saw that it was installed quite distorted. Therefore, if the polishing tube C is structured to be rotated to move it up and down (it cannot be moved up and down unless it is rotated), creaks will occur in various parts because the center is not exposed.

However, the present invention provides a vertical rice milling device in which a downward grain feeding spiral 5 is provided in an upper grain feeding chamber 3 in a pleated case 2, and a rice milling roll 6 is provided in a lower milling chamber 4 in the case 2. In this, the rice milling roll 6 is provided with a mechanism that shifts in the rotational direction according to the rice milling load between the center shaft 9 that rotates the rice milling roll 6 and the rice milling roll 6, and the rice milling roll 6 moves according to the shift amount.
The rice milling roll 6 is configured to move in the vertical direction, and a resistance lid v is integrally fixed to the lower end of the rice milling roll 6, so that when there is no load, the rice milling chamber 4 is closed by the movement of the rice milling roll 6 and no load is applied. Since this is an automatic load adjustment device for a vertical rice milling device that is configured to automatically open the milling chamber 4 by moving the rice milling roll 6, it is more effective than the known method of moving the milling tube up and down. Since the rice polishing roll 4, which has a smaller diameter than the polishing cylinder, is moved up and down, the apparatus becomes smaller and the accuracy is improved. Moreover, since the rice polishing roll 4 itself has a rotating structure, it is accurately centered from the beginning. Therefore, even if a rotational structure (that is, a rotational deviation structure) for moving the rice milling roll 4 up and down is provided, there is no need for any particular centering, and it can be manufactured easily. In addition, the rice milling roll 6 is provided with a mechanism that shifts in the rotational direction according to the rice milling load between the center shaft 9 that rotates the rice milling roll 6 and the rice milling roll 6, so that the rice milling roll 6 shifts according to the shift. , easy to configure.

[Brief explanation of drawings]

Figure 1 is a publicly known example, Figure 2 is a longitudinal side view of the whole,! lR
Figure 3 is a sectional view of the rice milling part in Figure 2, Figure 4 is a vertical side view, Figure 5 is a diagram of the rice milling state, and Figures 6 to 9 are the lower level fr.
1 is a mechanical diagram. Explanation of symbols 1...Metal underframe, 2...Folded case, 3...Grain feeding room, 4...Milling room, 5...Downward feed husk roll, 6
... Rice milling roll, 7 ... Grain feeding spiral, 8 ... Inclined protrusion, 9 ... Hollow vertical shaft, 10 ... Projection, 11 ...
bearing,! 2... Vertical adjustment tube, 13... Drive shaft, 14
...Spring, 15...Ball, 16...Spiral groove, 17.
...Passive pulley, 18...Motor, 19...Drive pulley, 20...Belt, 21.22...Bearing, 23...Fixed vertical tube, 24...Ceiling plate, 25...・
Ventilation duct, air pipe, n...silver-gold cylinder, n...
・Window hole, 6... blowhole. 30...Air outlet, 31...Lower end discharge part, 32...
・Resistance cover, ah... lever, 34... rod, 35.
...C formwork, 36...Top piece. 37... Tsuba, 38... Spring, 39... Long hole, 40
... Fixed frame, 42 ... Screw, 43 ... Nut, 4
4... Bran removing cylinder, 45... Bran removing chamber, 46... Hopper, 47... Brown rice, 48... Fountain.

Claims (1)

[Claims] In a vertical rice milling device, a downward feeding grain feeding spiral 5 is provided in an upper grain feeding chamber 3 in a vertical case 2, and a rice milling roll 6 is provided in a lower milling chamber 4 in the case 2. 6 is a structure in which a mechanism is provided between the center axis 9 for rotating the rice milling roll 6 and the rice milling roll 6 to shift in the rotational direction according to the rice milling load, and the rice milling roll 6 moves in the vertical direction according to the shift. A resistance lid 32 is integrally fixed to the lower end of the rice milling roll 6, so that when there is no load, the rice milling roll 6 moves up and down to close the milling chamber 4, and when there is a load, the rice milling roll 6 closes. An automatic load adjustment device in a vertical rice milling device configured to automatically open the whitening chamber 4 by vertical movement of the rice milling device 6.