JP2000317319A - Rice mill stabilized in adjustment of milling precision - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a stabilized milling precision irrespective of temperature variation and variation among respective components while adjustment of a milling precision over a plurality of steps is surely carried out by a method wherein a slide plate is moved back and forth by allowing an adjusting dial to pivot, and an elastic force according to this movement is given to a pressure plate via a spring. SOLUTION: In the case where brown rice is milled in a rice-milling space comprising a rice-milling roll and a bran-removing cylinder, a pressure of the brown rice fed by pressure by the rice-milling roll is adjusted by a pressure adjuster 40 arranged to a front side of the bran-removing cylinder 30. That is, the pressure adjuster 40 connects a pressure plate 42 freely shifted-movably assembled into a support base 41 to a slide 44 assembled, in a freely slidable manner, in the same way by a spring 47, and constitutes a cam plate engaged with an engaging pin on the slide plate 44 so as to be enabled to pivot by an adjusting dial 45. Then, by allowing the adjusting dial 45 to pivot to a position according to a required milling precision, a tension of a spring 47 and a push force of the pressure plate 42 are adjusted according to back and forth transfer of the slide plate 44, and a mutually rubbing against pressure of brown rice is adjsuted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice mill for turning brown rice into white rice by rotating a milling roll, and more particularly to a small rice mill suitable for use at home.

[0002]

2. Description of the Related Art The applicant has already proposed various types of small-sized rice polishing machines for home use, but the main requirement of such small-sized rice polishing machines is that maintenance is easy. What is possible is to be able to easily and stably adjust the milling accuracy (what is called milling) according to the preference at home. The applicant has proposed in Japanese Patent Application Laid-Open No. Hei 10-244173 and the like that maintenance can be easily performed. However, it is considered that there has not yet been a method capable of stably adjusting the grinding accuracy. Can be

[0003] The conventional method of adjusting the milling accuracy, which is generally adopted, is to control the pressure of the brown rice forcibly fed when the brown rice is rotated by the milling roll in the rice bran cylinder, to the front end of the rice bran cylinder, that is, the outlet side. The adjustment of the pressure of the pressure plate is performed by an adjustment dial that is outside the apparatus. The adjustment of the pressure plate pressure by the adjusting dial is performed by changing the tension of the spring.

[0004] Since the tension adjustment of the spring is generally performed by turning a small adjustment dial, not only is it difficult to finely adjust the polishing accuracy, but also the temperature change of each member (room temperature). It is extremely difficult to stabilize by expansion and contraction due to the natural temperature change depending on the milling time.

Therefore, the present inventor can surely adjust the milling accuracy of a small household rice mill, and can always obtain stable milling accuracy even if there is a temperature change. As a result of various studies on how to do so, the present invention has been completed.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above situation, and an object of the present invention is to make it possible to adjust the polishing accuracy reliably and stably.

That is, first, the object of the invention according to claim 1 is that not only is it possible to surely adjust the milling accuracy over a number of stages, but also if there is a temperature change or a variation between the members. An object of the present invention is to provide a rice milling machine capable of achieving stable polishing accuracy.

A second object of the present invention is to provide a rice milling machine capable of achieving the same object as in the first aspect and improving the operability of an adjusting dial. Is to provide.

[0009]

Means for Solving the Problems In order to solve the above problems, first, means according to the first aspect of the present invention will be described with reference numerals used in the following description of embodiments. "The brown rice fed from the brown rice hopper 13 is forcibly fed into the periphery of the milling roll 20, and is milled in the milling space of the milling roll 20 and the bran removing cylinder 30 located therearound. In the rice milling machine 100 in which the degree is adjusted by the pressure adjuster 40 provided on the front end side of the bran removing tube 30, the pressure adjuster 40 is replaced by a support table 41 for supporting the bran removing tube 30 on the back surface, and this support table. A pressure plate 42 attached to the front side of 41 so as to be tiltable, a slide plate 44 slidably attached to the support table 41, and the slide plate 44 and the pressure plate 41 are elastically connected. Spring 4
7 and the cam plate 4 which is engaged with the engagement pin 44a on the slide plate 44 and is rotated by the adjustment dial 45.
5a, and the adjustment dial 45
By moving the slide plate 44 back and forth by the rotation of, the elasticity according to the back and forth movement of the slide plate 44 is applied to the pressure plate 42 via the spring 47, thereby adjusting the polishing accuracy and stabilizing it. A rice milling machine 100 "characterized by being designed.

That is, the rice milling machine 100 according to claim 1
When the brown rice fed from the brown rice hopper 13 is milled in the milling space formed by the milling roll 20 and the bran removing cylinder 30, the pressure of the brown rice forcibly sent by the milling roll 20 is reduced by the bran removing cylinder. Although the pressure is adjusted by a pressure adjuster 40 provided on the front end side of 30,
By configuring the pressure regulator 40 as follows, the polishing accuracy can be reliably adjusted even in a number of stages, and the adjustment can be stably performed.

That is, in the rice milling machine 100, the pressure regulator 40 is connected to the support table 41 for supporting the bran removing cylinder 30 at the back.
And a pressure plate 42 attached to the front surface of the support table 41 so as to be tiltable, a slide plate 44 slidably mounted on the support table 41, and an elastic plate composed of the slide plate 44 and the pressure plate 41. The spring 47 which is spontaneously connected to the engaging pin 44a on the slide plate 44 and the adjusting dial 45
And a cam plate 45a which is rotated by the rotation.

When the adjustment dial 45 is rotated to a position corresponding to the desired grinding accuracy, a cam plate 45a integral with the adjustment dial 45 is rotated. As shown in FIG. 5, the cam grooves 4 having different distances from the center of the rotating shaft 45b integrated with the adjustment dial 45 in this order.
Since a large number of 5c are formed, the slide plate 44 is moved back and forth by each of the cam grooves 45c. This is because, as shown in FIG.
This is because the engaging pins 44a are integrally erected and the engaging pins 44a sequentially engage with the cam grooves 45c of the cam plate 45a. It is because it is freely assembled.

As shown in FIG. 3, one end of a spring 47 is connected to the sliding plate 44 which is moved back and forth, and the other end of the spring 47 is connected to the upper end of the pressure plate 42. The pressure plate 42 is swingably attached to the support table 41 at a swing fulcrum 42a located in the middle of the pressure plate 42. A portion of the pressure plate 42 located below the swing fulcrum 42a is located on the outlet side of the bran removing cylinder 30. The opening is closed. As a result, the opening of the bran removing cylinder 30 is closed by the pressure plate 42 by the tension of the spring 47 in accordance with the rotation of the adjustment dial 45, and the pressure at which the pressure plate 42 can be pushed and opened is as described above. When the rice is generated in the milling space, the white rice is discharged from the opening of the bran removing cylinder 30.

What is important in the operation of the pressure regulator 40 is that the pressure plate 42
Is to smoothly adjust the closing force of the outlet of the bran removing tube 30 by the lower part of the burr. That is, according to the amount of rotation of the adjustment dial 45, the cam groove 4 on the cam plate 45a integrated therewith is adjusted.
5c corresponds to the engaging pin 44a on the slide plate 44, and the slide plate 44 moves back and forth according to a change in the distance of the cam groove 45c from the center of the rotation shaft 45b. Then, the tension of the spring 47 pulling the pressure plate 42 is adjusted according to the forward and backward movement of the slide plate 44, and as a result, the pressure plate 42 at the opening of the bran removing tube 30 is adjusted.
Is adjusted to adjust the pressure at which the brown rice that has been bran-removed in the milling space rubs against each other.

In the grinding accuracy adjustment by the pressure regulator 40, the grinding accuracy selected by the adjustment dial 45 is based on the fact that the number of parts constituting the pressure regulator 40 is reduced, By moving the slide plate 44 back and forth with respect to 41, and connecting the pressure plate 42 to the slide plate 44 via a spring 47, a temperature change due to a change in room temperature, a prolonged use time of the rice mill 100, or the like. Is not affected at all. In other words, the selected degree of milling accuracy in the milling machine 100 is always stable regardless of the degree of milling, and milling can be performed as expected.

Therefore, the rice milling machine 100 of the first aspect is
The adjustment of the milling accuracy over a large number of stages (there are 14 stages in the following embodiment) can be performed reliably and stably.

[0017] In order to solve the above-mentioned problem, the means adopted by the invention according to claim 2 relates to the rice milling machine 100 according to claim 1, wherein "the support table 41 is attached to the rice bran removing cylinder 30". It comprises a hanging part 41a, a horizontal part 41b for guiding the slide plate 44 at the upper end of the hanging part 41a, and a dial mounting part 41c inclined from the front end of the horizontal part 41b toward the horizontal part 41b. And that the rotating shaft 45b of the adjustment dial 45 can be inclined toward the front side of the rice mill 100. "

That is, the rice mill 10 according to the second aspect.
0, the support table 41 constituting the pressure regulator 40
Is configured as described above, the adjustment dial 45 can be used as shown in FIG. 1 and FIG.
In this case, the operability is improved by facing the user at the upper part of the front of the machine frame 10.

That is, the adjustment dial 45 is used for the rice mill 10
0 is located on the outside of the outer cover 11 while being supported by the support base 41 constituting the pressure regulator 40 with respect to the machine frame 10 inside the outer cover 11. 2 and 5, the support 45 is formed by a dial mounting portion 41c which is inclined obliquely rearward, as shown in FIGS. 2 and 5, so that the rotating shaft 45b of the adjustment dial 45 is obliquely forward. It will be inclined to
The user can easily see the entire surface of the adjustment dial 45, and can perform the rotation by pinching it by hand in a natural posture.

Therefore, the rice milling machine 100 of the second aspect is
While exhibiting the same action as that of the above claim 1,
The adjustment dial 45 can be arranged at an angle position that can be easily seen by the user, and the operability can be improved.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a description will be given of a rice-milling machine 100 which is an embodiment shown in the drawings, according to the invention as claimed in the above. Since the rice mill 100 substantially including the invention is shown, the following description will focus on the rice mill 100 of this embodiment.

FIG. 1 shows the entire shape and a part of the internal structure of a rice milling machine 100 according to the present invention.
The outer cover 11 is detachably provided on the upper part of the machine frame 10 by turning the cover screw 12 shown in FIG. 1 with a finger so that the outer cover 11 can be removed from the machine frame 10. is there. A lid is removably mounted on the outer cover 11, and a brown rice hopper 13 indicated by a dotted line in FIG. 1 is provided below the lid.

On the lower right side of the front of the machine frame 10,
As shown in FIG. 1, a white rice case 60 for receiving white rice dropped from a white rice shooter 50 described later is housed in a freely accessible manner, and on the left side of the white rice case 60, a milling roll 20 and a bran removing cylinder described later. A rice bran case 61 for storing rice bran formed by the action of the rice bran is provided.

Two openings are formed in the upper front part of the outer cover 11, and from these openings, as shown in FIG. 1, an adjustment dial 45 and a power switch of a pressure regulator 40 to be described later are exposed. It is like that. Of course, a locking portion is formed at the rear end of the outer cover 11 so as to be engaged with the rear upper end of the machine frame 10, and the outer cover 11 is attached to the machine frame 10 in the state shown in FIG. After being fixed by the cover screw 12 after being assembled, it is fixed in the state shown in FIG. 1 and the like.

Therefore, the outer cover 11 can be removed by removing the cover screw 12 and lifting the front part thereof.
The adjustment dial 45 is left on the support table 41 side as shown in FIG.
They are left open on the side. In other words, the outer cover 11 can be opened without using any tool such as a screwdriver. As shown in FIG.
The whole pressure regulator 40 in which the white rice shooter 50 and the bran removing cylinder 30 are integrated can be easily taken out.

The milling machine 100 is for milling brown rice fed from the brown rice hopper 13. The lower end of the brown rice hopper 13 has a milling roll 20 as shown in FIGS. At the rear end (the right end in FIG. 1). The milling roll 20 is connected to a drive shaft 21 located on the right side in FIG. 1, and the drive shaft 21 is driven to rotate by a drive motor 22 provided on the machine frame 10.

As shown in FIGS. 1 and 2, the periphery of the milling roll 20 is a bran removing cylinder 3 having a large number of bran removing holes 31.
0, and the space between the rice bran cylinder 30 and the milling roll 20 is a milling space. That is,
The brown rice fed from the brown rice hopper 13 is forcibly fed into the grinding space by the rotation of the grinding roll 20 and is rotated. The rotation causes the brown rice to rub against the bran removing hole 31 of the bran removing cylinder 30. As a result, the bran on the surface is peeled off and the rice is milled. Then, the bran removing cylinder 30 is attached to the cover 3 fixed to the machine frame 10 side.
Since the lower portion of the cover 32 is opened to the rice bran case 61 described above, the peeled rice bran is dropped into the rice bran case 61.

As shown in FIG. 7, the cover 32 is open at the bottom and surrounds the periphery of the bran removing tube 30.
It has a pair of right and left engaging claws 33 integrally formed on the front end side. As shown in FIG. 3, each of the engagement claws 33 includes a neck portion 33a and an engagement portion 33b formed at the tip of the neck portion 33a and having a triangular shape in a plan view.

As described above, pressure is applied to the brown rice in the milling space by the rotation of the milling roll 20, and the pressure is adjusted by the pressure regulator 40. In other words, this pressure regulator 40 is
The front end opening of the bran removing tube 30 is resiliently covered by a pressure plate 42 provided on the front surface.
This adjusts the degree of milling of brown rice, that is, the milling accuracy.

The support 41 constituting the pressure regulator 40
As shown in FIG. 4 to FIG. 6, the hanging portion 41 a and the horizontal portion 41 b which is horizontally connected at the upper end of the hanging portion 41 a
And a dial mounting portion 41c extending obliquely rearward from the front end of the horizontal portion 41b. As shown in FIG. 2 and the like, the front end of the bran removing tube 30 is integrally connected to the back surface of the hanging portion 41a of the support base 41,
The front end side opening of the bran removing cylinder 30 is opened at the hanging portion 41a.

As shown in FIG. 3, a pressure plate 42 is mounted on the front surface of the hanging portion 41a.
2, the front end side opening of the bran removing tube 30 is resiliently closed. That is, as shown in FIG. 3, the pressure plate 42 is supported by the support table 41 having a fulcrum arm 46 on the left and right integrated with the upper end thereof. The fulcrum arm 4 on the 41a side
By pivoting on the pivot 6, each of the swinging fulcrums 42a is tilted about a fulcrum. And, this pressure plate 42
As shown in FIG. 3, one end of a spring 47 is mounted on a portion located above the swing fulcrum 42a.

As shown in FIG. 3, the other end of the spring 47 is mounted on the front end of a slide plate 44 provided to be able to move back and forth with respect to the horizontal portion 41b of the support base 41. In other words, the spring 47 is a so-called tension spring, which always pulls the upper end side of the support plate supporting the pressure plate 42, whereby the pressure plate 42 swings each swing fulcrum 42a. As the fulcrum, the bran tube 30
Is always urged to close the opening.

The tension of the spring 47 is adjusted by the adjusting dial 4 attached to the dial attaching portion 41c of the support base 41.
5 is adjusted by the rotation operation. That is, by operating the adjustment dial 45, the pressing force of the pressure plate 42 is adjusted, and thereby the polishing accuracy is adjusted.

Specifically, as shown in FIG. 2, first, a cam plate 45a is integrated with an adjustment dial 45 via a rotation shaft 45b, and the rotation shaft 45b connects the support table 41 of the pressure regulator 40 to the adjustment plate 45. By the dial attachment part 41c which comprises,
In particular, as shown in FIG. 2, the rotating shaft 45b is supported so as to be inclined obliquely downward from the left. In other words, the cam plate 45 a rotated by the adjustment dial 45 is positioned obliquely with respect to the slide plate 44 movably mounted on the horizontal portion 41 b of the support base 41.

As shown in FIGS. 7 and 8, the cam plate 45a is rotated by an adjustment dial 45.
As shown in FIG. 8, the peripheral surface has a large number of cam grooves 45c formed so as to become farther from the center of the rotating shaft 45b.
In each of the cam grooves 45c, one engagement pin 44a provided on the slide plate 44 is engaged in order, whereby the cam plate 45a is moved by an amount corresponding to the rotational position. Thus, the slide plate 44 is moved back and forth. That is, when the cam plate 45a integrally provided inside the adjustment dial 45 pushes the engagement pin 44a provided on the slide plate 44, the advance / retreat amount of the slide plate 44 is determined. The adjustment of the pressing force is performed.

As shown in FIG. 3, engagement holes 43 are formed on both sides of the hanging portion 41a of the support base 41.
Each of these engagement holes 43 is provided in the cover 3 that encloses the bran removing tube 30.
2 can pass through the engaging portion 33b of the engaging claw 33, which is not directly engaged. However, the engaging portion 33b is engaged with the white rice shooter 50 described below. Then, the support table 41 is positioned and pressed between the front end of the cover 32 and the white rice shooter 50.

As shown in detail in FIG. 3, the white rice shooter 50 includes a pressure plate 42 on the pressure regulator 40 side.
It is arranged on the front surface of the hanging part 41a of the support base 41 while wrapping the slide plate 44, and guides the white rice which has come out by pushing the pressure plate 42 toward the pressure plate 42 side. A pair of right and left, that is, the cover 3
An engagement hole 52 corresponding to each of the engagement claws 33 on the two sides is formed. Each of the engagement holes 52 is formed by connecting an upper locking small hole 52a and a lower insertion large hole 52b continuously. The locking small hole 52a has a neck portion 33a of the engaging claw 33. The insertion hole 52 b is large enough to be inserted, and
Is large enough to allow the engaging portion 33b to be inserted.

The white rice shooter 50 is mounted on the machine frame 10 as follows. That is, as shown in FIG. 3, the bran removing cylinder 30 into which the milling roll 20 is inserted is covered together with the support 41 constituting the pressure regulator 40 by the cover 3.
2 and each engaging claw 33 on the cover 32 side is
One of the engagement holes 43 protrudes. This engaging claw 3
Next, the engaging hole 52 on the white rice shooter 50 side is engaged with the engaging hole 52. In this case, first, the engaging claw 33 side is inserted into the insertion large hole 52b of the engaging hole 52. The part 33b is fitted. Then, by slightly lifting the whole white rice shooter 50, the neck 3 on the side of each engaging claw 33 is raised.
3a is completely fitted into the small engaging hole 52a of the engaging hole 52. Then, the inner surface of the engaging portion 33b of each engaging claw 33 is locked to the front side of the engaging hole 52. Therefore, when the white rice shooter 50 is attached to the machine frame 10 side, any tool such as a screwdriver is required. You can do it without using it.

Of course, in order to remove the white rice shooter 50, it is only necessary to perform the reverse operation to that described above. When the mounting of the white rice shooter 50 is completed, the original state is restored by mounting the outer cover 11.

[0040]

As described in detail above, first, in the invention according to claim 1, as exemplified in the above embodiment,
"A milling roll 20 of the brown rice fed from the brown rice hopper 13
, And crushing is performed in the crushing space between the crushing roll 20 and the removing bran tube 30 located therearound. The degree of the crushing is determined by the pressure provided on the front end side of the removing bran tube 30. Rice milling machine 100 adjusted by adjuster 40
In the above, the pressure regulator 40 is supported on the support table 41 that supports the bran removing tube 30 on the back surface, the pressure plate 42 that is tiltably mounted on the front surface side of the support table 41, and is slidable with respect to the support table 41. , A spring 47 for resiliently connecting the slide plate 44 and the pressure plate 41, and an engagement pin 44 a on the slide plate 44, and rotated by an adjustment dial 45. The slide plate 44 is moved forward and backward by the rotation of the adjustment dial 45, and the elastic force according to the forward and backward movement of the slide plate 44 is applied to the pressure plate via the spring 47. 42 to adjust the milling accuracy and stabilize the milling accuracy. "There is a feature in its configuration, and this makes it possible to reliably adjust the milling accuracy over multiple stages. Of course, even if there is variation among the members or a temperature change, it is possible to provide a rice mill capable of a stable pearling degree.

According to the second aspect of the present invention, in the rice milling machine 100 of the first aspect, the support table 41 includes a hanging portion 41a to which the bran removing tube 30 is attached, and a hanging portion 4a.
Horizontal portion 41b for guiding slide plate 44 at the upper end of 1a
And a dial mounting portion 41c inclined from the front end of the horizontal portion 41b toward the horizontal portion 41b, so that the turning shaft 45b of the adjustment dial 45 is
The structure is characterized in that it can be tilted toward the front side of the "0". This makes it possible to achieve the same object as the above-mentioned claim 1, and to improve the operability of the adjustment dial. It can provide a rice milling machine that can do it.

[Brief description of the drawings]

FIG. 1 is a right side view showing a part of an internal structure of a rice mill according to the present invention in a see-through manner.

FIG. 2 is a right side view showing components taken out of the rice milling machine.

FIG. 3 is an exploded perspective view mainly showing a pressure regulator and a bran removing cylinder attached to a support base constituting the pressure regulator.

FIG. 4 is an enlarged rear view of a support base constituting the pressure regulator of the rice mill.

FIG. 5 is a side view of the support base.

FIG. 6 is a plan view in which a slide plate of the support base is incorporated.

FIG. 7 is an enlarged side view of a cam plate integrated with a rotation shaft of an adjustment dial.

FIG. 8 is a plan view of the cam plate.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Rice mill 10 Machine frame 11 Outer cover 12 Cover screw 13 Brown rice hopper 20 Milling roll 21 Drive shaft 22 Drive motor 30 Bran cylinder 31 Bran hole 32 Cover 33 Engagement claw 33a Neck 33b Engagement part 40 Pressure regulator 41 Support Table 41a Hanging part 41b Horizontal part 41c Handle attachment part 42 Pressure plate 42a Swing fulcrum 43 Engagement hole 44 Slide plate 44a Engagement pin 45 Adjustment dial 45a Cam plate 45b Rotating shaft 45c Cam groove 46 Support arm 47 Spring 50 White rice shooter 51 Base 52 Engagement hole 52a Small locking hole 52b Large insertion hole 60 White rice case

Claims (2)

[Claims] Claims: 1. A brown rice fed from a brown rice hopper is forcibly fed around a milling roll, and is milled in a milling space between the milling roll and a rice bran cylinder located around the milling roll. In a rice milling machine in which the degree is adjusted by a pressure adjuster provided on a front end side of the bran removing cylinder, the pressure adjuster may include a support base supporting the bran removing cylinder on a back surface, and a front side of the support base. A pressure plate mounted to be tiltable to a slide plate, a slide plate slidably mounted to the support table, a spring for resiliently connecting the slide plate and the pressure plate, And a cam plate which is rotated by an adjustment dial while being engaged with the engagement pin of the slide plate. The elastic force according to By applying to the pressure plate via a spring, with adjusting the pearling degree, rice mill, characterized in that it has to achieve its stabilization. 2. The support table has a hanging portion to which the bran removing tube is attached, a horizontal portion guiding the slide plate at an upper end of the hanging portion, and a front end of the horizontal portion facing the horizontal portion. The milling machine according to claim 1, wherein the milling machine is constituted by a dial mounting portion that tilts so that the rotation axis of the adjustment dial can be tilted toward the front side of the milling machine.