JP3802208B2 - White grinding machine for horizontal grinding - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a whitening apparatus in which the filling degree of rice grains in a cereal chamber of a horizontal grinding type pulverizer is uniformly increased to make the whitening effect effective and to have a high performance.
[0002]
[Prior art]
Needless to say, the conventional horizontal grinding type grain milling machine is a grain feeding room in which a feeding of a graining room formed by surrounding a grinding roll with a descreening screen incorporates a cerealing roll. Is provided with a white rice outlet that has a pressure valve on the drainage gutter and is equipped with a variable flap in the cereal chamber, so that the rice grains fed into the cereal chamber are refined while giving a stirring reversal action.
[0003]
[Problems to be solved by the invention]
Therefore, the filling degree of the rice grains in the cereal chamber in the conventional horizontal grinding type pulverizer is low, and the whitening action is not effectively performed, and there is a difficulty in improving the performance.
[0004]
[Means for Solving the Problems]
Accordingly, the present invention solves the difficulty described in the preceding paragraph, and surrounds the grinding roll with a descreening screen and forms it in the grain chamber formed between the grinding roll and the descreening screen. The supply of the cereal room feeds brown rice and the discharge takes out the white rice from the cereal. The supply of the cereal room is in the middle of the crease and discharge, and the lower part of the grinding roll is the lower part or the lower part. By blocking the gap between the upper side and the upper side by the arc-shaped stop plate that intersects with the axis of rotation of the grinding roll, the rice grains that are trying to flow into the sewage are blocked. Since it is retained, the degree of filling in the wadding increases in the cereal room, and the whitening action is effectively performed.
[0005]
At that time, if a plurality of stop plates are provided at predetermined intervals in the direction of the axis of rotation of the grinding roll, the filling degree of the rice grains in the cereal chamber is evenly increased, and the whitening action is further enhanced and the efficiency is increased. .
[0006]
Further, by providing a spacer having a smooth surface on the peripheral surface portion of the grinding roller facing the stop plate, the rice grains are not bitten and damaged grains such as broken rice are not generated.
[0007]
Then, the descreening screen is divided into a plurality of arcuate bodies, and the descreening screen to be divided is connected to each other via a flap base having variable flaps to surround the grinding roll. In this case, by adjusting the stop plate to the circumferential line connecting the variable flap and the variable flap, the one that has accumulated due to the stop plate and has increased density is taken over by the variable flap and adjusted. The adjustment effect by the variable flap becomes large.
[0008]
Furthermore, by forming the variable flap of the trailing wing after the rotation longer than the variable flap of the leading rotation of the rotation, the adjustment range is increased although the density is increased due to retention by the stop plate. The action is performed effectively.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
【Example】
Hereinafter, the polishing apparatus according to the present invention will be described with reference to the drawings. (1)... Is a grinding roll, (2) is a descreening screen, (3) is a grinding roll (1). .. is surrounded by the descreening screen (2) and formed between the grinding roll (1)... And the descreening screen (2), (9) The cerealing room (9) has a built-in roll (10), and the cerealing room (9) is connected to the cereal supply room (3) and feeds brown rice into the cerealing room (3). 11) is a presser foot attached to the drainage, and the grinding roll (1) is joined to the cerealing roll (10) by joining the grinding roll (1). A roll (10) is integrally mounted on the rotary shaft (12), and (13) is a discharge chamber formed around the outside of the descreening screen (2). ) To arrow (I) The wind that is fed in is passed through the cerealing roll (10) and the grinding roll (1) and is blown out from the blast port (15) into the milling chamber (3). In the evacuation chamber (13), a suction / exhaust air is blown as indicated by an arrow (b).
[0010]
(16) is a hopper for supplying brown rice to the cerealing room (9), (17) and (18) are a shutter and a cerealing room that are opened and closed by the operation of the operation part (19) provided on the drainage hook ( 9) is a regulating valve for the supply amount to (20), and (20) is a white rice outlet provided at the bottom of the cereal chamber (3) with a pressure lid (21) with a weight attached, The pressure lid (21) is closed.
[0011]
In addition, (22) is a white rice extraction case attached to the outside of the machine wall (23) of the discharge hopper to take out the white rice in the cereal chamber (3), the upper part of which extends to both sides, Each of the extended portions communicates with the upper portion of the evacuation chamber (13) through which the suction and exhaust air flows through the suction ports (24) and (24).
[0012]
Further, the upper and lower intermediate portions of the white rice take-out case (22) branch to both sides so as to surround the bearing portion (25) supporting the rotating shaft (12). It communicates with both sides of the white rice extraction tub (26) that receives white rice from the white rice outlet (20).
[0013]
Then, the milling roll (1) has a machine wall (23) corresponding to the upper edge of the grinding roll (1), and the white rice take-out case (22) branches off and crosses the bearing portion (25). The discharge ports (27) and (27) are opened, and the drainage of the cereal chamber (3) is communicated with the white rice extraction case (22).
[0014]
Further, around the end surface portion of the presser foot (11) passing through the side of the white rice discharge port (27) of the presser foot (11) rotating integrally with the grinding roll (1) at the cereal chamber (3). Several air outlets (28) for blowing air from inside the cavity of the grinding roll (1) are opened, and the rotation leading edge of each of the air outlets (28) has a rod-like discharge blade (29). Are obliquely integrated.
[0015]
FIGS. 6 to 8 show another embodiment of the removal screen (2), in which the upper and lower circumferences of the grinding roll (1)... The upper half screen (2a) and the lower screen (2b) of the surrounding semi-cylindrical body are divided, each end thereof is bent, and variable flaps (6) and (7 ) Are arranged in a cylindrical shape by interposing and connecting the flap bases (8) and (8).
[0016]
The variable flap (6) can be rotated and adjusted in the same manner as indicated by an arrow (c) with the shaft (30) as a fulcrum, and the variable flap (7) with the shaft (31) as a fulcrum. .
[0017]
Next, (4) shows that the lower part of the grinding roll (1) is in the middle or lower part as shown in FIG. 4 and FIG. An arc-shaped stop plate provided on the descreening screen (2) while intersecting with the axis of rotation of the grinding roll (1) between the surroundings and the upward rotation. The portion of the grinding roller (1) facing the plate (4) is opposed to the spacer (5) having a smooth surface sandwiched between the grinding rollers (1) and (1). Closed in contact with the stop plate (4), the lower part of the cereal chamber (3) or the lower part of the cereal chamber (3) is turned upward from the lower part of the cereal chamber (3). It is divided into and.
[0018]
Although not shown, it is preferable that a plurality of the stop plates (4) are provided at predetermined intervals in the direction of the rotation axis of the grinding roll (1).
[0019]
In this case, in another embodiment in which the scavenging screen (2) is divided, as shown in FIGS. 7 and 8, the lower screen (8) between the flap stands (8) and (8) ( 2b) From the top or lower screen (2b) to the upper screen (2a), a continuous state is established, leaving a part of the cereal chamber (3) divided into feed and discharge. Yes.
[0020]
(32) is a ring-shaped fixed flap provided at the part of the removal screen (2) of the supply and discharge hooks at a certain interval from the stop plate (4). The fixed flap (32) is spaced from the peripheral surface of the grinding roll (1) so that the rice grains can pass from the supply side to the discharge side. Further, in the other embodiments, the fixed flap (32) is divided into the one on the lower screen (2b) and the one on the upper screen (2a) by the flap table (8) (8). Has been interrupted.
[0021]
In addition, the stop plate (4) and the fixed flap (32) are arranged on the flap table (8) and (8) in the above-mentioned other embodiment that divides the descreening screen (2). The variable flaps (7) that are aligned on the circumferential line (P) connecting the respective variable flaps (6) and (7) to be arranged and that reach the trailing edge after rotation of the grinding roll (1) The rotation leading arrival is longer than the variable flap (6).
[0022]
As a result, the brown rice supplied from the hopper (16) to the cerealing chamber (9) is continuously fed into the cerealing chamber (3) by the cerealing roll (10), and the grinding roll (1 ) Is subjected to the whitening effect.
[0023]
During this whitening action, the ring-shaped fixed flap (32) provides a flow-inhibiting action to the drainage, and the variable flaps (6) (7) provide flow resistance and discharge to the hook. While the induction is adjusted and the action of stirring reversal is given to the rice grains, the rice grains with the rotation of the grinding roll (1) from the lower side or the lower side to the upper side by the stop plate (4) The high density of the material is retained by the damming action, the filling degree in the cereal chamber (3) is increased and the whitening action is effectively performed, and the damming action for increasing the filling degree is the stop plate (4 ) And the spacer (5) are brought into contact with each other so that the rice grains are not bitten, and the rice cake produced by the whitening action leaks from the descreening screen (2) to the discharge chamber (13). In the chamber (13) The suction and discharge air is being discharged outside.
[0024]
Also, the white rice comes out from the white rice discharge port (27), (27) of the discharge hopper and falls into the white rice extraction case (22). In the process of falling, the inside of this case (22) is an arrow. The soot adhering to the white rice is removed by the suction and exhaust air blown up as in (d), and the soot removed is lifted in the white rice extraction case (22) and discharged from the suction ports (24) and (24). The white rice that has entered the chamber (13) and joined with the spilled leakage from the descreening screen (2) is discharged from both sides of the white rice extraction slag (26). And then taken out.
[0025]
The white rice discharged from the white rice discharge port (27) is blown out from the air discharge port (28) opened in the presser foot (11) while the white rice discharge port (27) is pushed by the rotating discharge blade (29). The white rice discharge port (27) smoothly exits and falls into the white rice extraction case (22) by the wind, and the pressure lid (21) of the white rice outlet (20) is normally closed. However, if the pressure in the cereal chamber (3) becomes abnormally high due to the excessive amount of brown rice fed into the cereal chamber (3), it opens by the internal pressure in the cereal chamber (3) and opens the rice exit ( 21) also causes white rice to flow out.
[0026]
In the other embodiment for dividing the descreening screen (2), the rice grains are retained by the stop plate (4) provided on the lower screen (2b), and the density is further increased. As the density increases and the density increases, the arrival after the rotation is transferred to the variable flap (7), and the adjustment effect by the variable flap (7) increases. In addition, the variable flap (7) for the follower reaching the post-rotation is formed longer than the variable flap (6) for the predecessor of the rotation, and the adjustment range is increased.
[0027]
【The invention's effect】
The present invention is implemented in the form described above, and has the following effects.
[0028]
That is, the grinding roll is surrounded by a descreening screen, and the cereal chamber is formed between the grinding roll and the descreening screen. The white rice is taken out, the supply of the cereal chamber is in the middle of the wrinkle and the discharge, and the lower part of the grinding roll is between Since the discharge is blocked by the arc-shaped stop plate that intersects the rotation axis of the rice, the sewage is allowed to flow and stay in the rice grains. The degree of filling is increased and the whitening action is effectively performed, so that a high performance product can be provided.
[0029]
By providing a plurality of the stop plates at predetermined intervals in the direction of the axis of rotation of the grinding roll, the filling degree of rice grains in the cereal chamber is evenly increased, and the whitening action is further enhanced to increase the efficiency. Can do.
[0030]
Further, by providing a spacer having a smooth surface on the peripheral surface portion of the grinding roller facing the stop plate, the rice grains are not bitten and damaged grains such as broken rice are not generated.
[0031]
Then, the descreening screen is divided into a plurality of arcuate bodies, and the descreening screen to be divided is connected to each other via a flap base having variable flaps to surround the grinding roll. In this case, by adjusting the stop plate on the circumferential line connecting the variable flap and the variable flap, the one that has accumulated due to the stop plate and has increased density is taken over by the variable flap and adjusted. The adjustment effect by the variable flap becomes large.
[0032]
Furthermore, by forming the variable flap of the trailing wing after the rotation longer than the variable flap of the leading rotation of the rotation, the adjustment range is increased although the density is increased due to retention by the stop plate. The action is performed effectively.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view of a horizontal grinding type grain refiner.
FIG. 2 is a front view of the same grain machine as seen from the discharge.
3 is a cross-sectional view taken along line AA and line BB in FIG. 1. FIG.
4 is a cross-sectional view taken along line CC in FIG. 1. FIG.
FIG. 5 shows another example of the stop plate.
FIG. 6 is a cross-sectional view taken along lines AA and BB in another embodiment.
FIG. 7 is a sectional view taken along line CC in the example.
FIG. 8 shows another example of the stop plate of the same example.
FIG. 9 is a development view of the removal screen portion in the same example.
[Explanation of symbols]
1 Grinding roll 2 Removal screen 3 Grain chamber 4 Stop plate 5 Spacer 6 Variable flap
7 Variable flaps
8 Flap stand P Circumference line

Claims (5)

In the grain chamber (3) formed between the grinding roll (1) and the removal screen (2) by surrounding the grinding roll (1) with the removal screen (2), The supply of the cereal chamber (3) feeds brown rice from the scallop and takes out the white rice from the discharge. The supply of the cereal chamber (3) is in the middle of the scour and discharge, and the grinding roll (1 The lower circumference or between the lower circumference and the upward rotation is blocked by an arcuate stop plate (4) intersecting the axis of rotation of the grinding roll (1). Whitening machine for horizontal grinding cereal machine. 2. A plurality of stop plates (4) are provided at predetermined intervals in the direction of the axis of rotation of the grinding roll (1). The horizontal grinding type grain milling machine described. 2. A spacer (5) having a smooth surface is provided on the peripheral surface portion of the grinding roll (1) facing the stop plate (4). Or claim 2. The horizontal grinding type grain milling machine described. The descreening screen (2) is divided into a plurality of arcuate bodies, and the descreening screen (2) to be divided is a flap table (8) (8) with variable flaps (6) (7), respectively. 8) In the case of surrounding the grinding roll (1) by being connected to each other via a circumferential line (P) connecting the stop plate (4) to the variable flap (6) and the variable flap (7). 2. Matched above. Or claim 2. The horizontal grinding type grain milling machine described. 5. The variable flap (7) for the trailing arrival after the rotation is formed longer than the variable flap (6) for the rotation leading arrival. The horizontal grinding type grain milling machine described.

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