JPH0120997Y2 - - Google Patents

Description

[Detailed description of the invention] This invention pushes grains or the material to be crushed into the body of a cylindrical body by force feeding with a screw, and applies pressure using a resistance plate provided at the outlet of the cylindrical body. This invention relates to an improvement in a screw-type grinder/grain miller that mills (or grinds) grains (or grinds) by correcting strong friction between the grains (or materials to be ground).

A grain milling machine (or crushing machine) has a rotating grinding rotor housed in a shaft rack inside a bran removing cylinder that constitutes a milling chamber.
Grain (or crushed material) naturally flowing down inside the bran removal cylinder
A grinding-type grain milling machine that mills grain by grinding it with the circumferential surface of a grinding trochanter, and as mentioned above, the grain is pushed into the body of a cylindrical body by a screw, and the pressure generated by the screw and the There are friction-type or screw-type grain milling machines (or crushers) that mill grains by strong friction created between grain particles using a resistance plate installed on the outlet side of a cylindrical body. .

By the way, each of these grain milling machines is equipped with a means for adjusting the degree of polishing, but the adjustment of the degree of polishing is
In the former case, it is known as a tilt-type grain milling machine because the milling action is performed by grinding the surface of the grain by bringing the naturally flowing grain into contact with the circumferential surface of a rotating grinding roller. As shown in the figure, by changing the angle of inclination of the bran removal cylinder, where the grains naturally flow down inside,
By changing the flow rate of grains that naturally flow down,
The grinding accuracy can be adjusted by adjusting the length of time that the grains contact the circumferential surface of the grinding roller and undergo grinding. However, in the case of the latter screw-type grain milling machine, the milling action of the grain milling machine is such that the grains fed into the body of the cylindrical body by the screw are forced into the screw by a resistance plate provided on the outlet side of the cylindrical body. By applying resistance in the sending direction, the grain is pressurized and a strong friction is created between the grain particles, and this sliding contact causes the milling to be performed. This is done by changing the resistance of a resistance plate that dams and pressurizes the discharge of grains fed into the body of the cylindrical body by a screw. That is, the resistance of the resistance plate is adjusted by adjusting the spring pressure that biases the resistance plate provided at the outlet of the cylindrical body so as to be openable and closable toward the closing side.

For this reason, the adjustment range is limited by the spring pressure of the spring used to bias the resistance plate, and it is not possible to apply more resistance than that spring pressure, so when a large resistance is required, There is the problem of having to replace the spring, and the adjustment of the degree of grinding and polishing is limited to the point where the resistance of the resistance plate is reduced to zero, so even if the resistance plate is removed and the resistance is reduced to zero, the cylinder will not change. There is a problem in that it is not possible to crush materials with a high moisture content, which may cause clogging in the body of the shaped body.

The present invention was devised in order to solve the problems that have arisen with the conventional means, and the cylindrical body that internally supports the screw, which was previously fixedly supported on the underframe, is now attached to the underframe. The cylindrical body is supported so that its axial direction can freely tilt and rotate from a downwardly tilted angle toward the outlet side of the cylindrical body to an upwardly tilted upwardly tilted angle, and by the tilted rotation, Without replacing the spring, the weight of the grain is added to the resistance of the resistance plate provided at the outlet of the cylindrical body as a resistance greater than the spring pressure of the spring. Adjustment of the degree of milling (or degree of grinding), which is set by the pressure applied to the grains, when the weight is reduced by the pressure applied to the grains by subtracting the pressure caused by the forced feeding of the screw. The pressure range is expanded from more than the spring pressure of the spring that biases the resistance plate toward the closing side to less than the pressure caused by the screw pressure, and the pressure range is adjusted according to the properties of the grain (or crushed material) to be milled (or crushed). The purpose of the present invention is to provide a new screw-type grain milling machine (or crushing machine) in which the degree of polishing (or degree of grinding) can be selected.

In the present invention, for this purpose, a cylindrical body in which a screw for press-feeding material is housed and supported in a cylinder is arranged so that the axial direction of the cylindrical body is directed upward toward the outlet at one end of the cylindrical body. The cylindrical body is supported on an underframe so as to be tiltable and rotatable, and a resistance plate that can be opened and closed is provided at the outlet of the cylindrical body to apply spring pressure. This invention proposes a screw-type crusher/grain milling machine that is biased toward the closed side by a tuned spring.

Next, embodiments will be described in detail with reference to the drawings.

FIG. 1 is a front view of a screw-type grain milling machine in which the present invention can be implemented, with a portion cut away to show the inside. In the figure, 1 is an underframe, 2 is a cylindrical body in which a screw 3 is housed and supported, and 4 is a supply hopper for supplying rice grains to be milled into the cylindrical body 2. M is a motor provided at the base end of the cylindrical body to drive the screw 3, and 5 is a cylindrical bran remover interposed between the inner surface of the circumferential wall 2a of the cylindrical body 2 and the outer periphery of the screw 3. The net 6 is rotatably supported by a support shaft 60 at the outlet 20 of the cylindrical body 2,
The resistance plate is shown biased toward the closing side by a spring 61.

The underframe 1 consists of a base part 10 and a support 11 set upright thereon, and an assembly seat 12 for assembling the supply hopper 4 is installed on the upper part of the support 11.
The supply hopper 4 is fixedly supported there. Further, on the front surface of the lower end of the support column 11, there is formed a plate-shaped portion 13 which protrudes forward and has a flat front surface, and a set bolt 14 is installed in the plate-shaped portion 13.

The supply hopper 4 has an outlet 40 provided at the bottom thereof, and the outer periphery of the outlet 40 is formed into a ball-shaped fitting part 41 .

The cylindrical body 2 has a receiving port 21 connected to the outlet 40 of the supply hopper 4 on the upper surface side of a portion near the proximal end of the body circumferential wall 2a.
The connection port between the intake port 21 and the outlet port 40 is
A concave spherical fitting portion 22 is formed to fit into the outer peripheral surface of the ball-shaped fitting portion 41 in the shape of a ball joint. Further, a sliding plate 23 extending downward from the trunk peripheral wall 2a is integrally installed on the lower peripheral surface side of the cylindrical body 2, and the ball-shaped fitting portion 41
A long groove 24 is formed along an arc centered at . In the cylindrical body 2, the aforementioned fitting part 22 fits into the ball-shaped fitting part 41 provided at the outlet 40 of the supply hopper 4, and the sliding plate 23 is provided on the front side of the support column 11. The nut 15 is screwed onto the set bolt 14 protruding from the long groove 24 of the sliding plate 23 while being in sliding contact with the plate-like part 13, and is supported by the underframe 1, and the nut 15 can be loosened. Then, within the range regulated by the long groove 24, it rotates around the aforementioned ball-shaped fitting part 41, and changes from the horizontal position shown by the solid line in Fig. 1 to the position shown in Fig. 1. As shown by the chain line, the direction of the axis w is tilted upward toward the outlet 20, and as shown by the chain line in FIG. It is possible to switch between an upwardly inclined and a downwardly inclined position, and to change and adjust the position to a desired inclined angle between them.

Numeral 8 indicates that the bran peeled from the rice grains is fed from a blower installed in the base end of the cylindrical body 2 and passed through the inner cavity of the rotating shaft 30 of the screw 3 to the rotating shaft 30.
Due to the blowing air from the through holes in the surrounding wall,
This is a pipe for guiding the bran blown out of the bran removing cylinder 5 to a bran tank 80 provided outside the machine.

Next, FIG. 3 shows another embodiment. In this embodiment, the connecting portion between the outlet 40 of the supply hopper 4 and the receiving port 21 of the cylindrical body 2 is replaced with the fitting portion 41 and the fitting portion 22 in the embodiment of FIGS. 1 and 2.
The only difference is that the outflow port 40 and the intake port 21 are connected by a flexible bellows-shaped connecting pipe 7 instead of a ball joint-like connection.
The other configurations are the same as those of the embodiment shown in FIGS. 1 and 2 described above, and the same reference numerals are given to the same constituent members and the explanation thereof will be omitted.

In addition, in each of the above-mentioned embodiments, the cylindrical body 2
Any means can be used to support the underframe in a tiltable and rotatable manner so that the axis w thereof is tilted at a desired angle with respect to a horizontal line. 41 and the fitting part 2 of the cylindrical body 2
2, the supply hopper 4 and the cylindrical body 2 are integrally connected, and the supply hopper 4 and the assembly seat 12 of the support column 11 are not connected. , a separate support shaft is provided at the connecting portion that connects the fitting portion 41 and the fitting portion 22 together, and this support shaft is pivotally supported by the support 11, so that the supply hopper 4 and the cylindrical body 2 can be connected to each other. It may be designed as appropriate, such as allowing both to tilt and rotate together.

In addition, since the illustrated example is a grain milling machine,
A bran removing tube 5 is provided at the inner side of the circumferential wall 2a of the cylindrical body 2. When used as a crusher for crushing grains, etc., the bran removing screen 5 is omitted, and the bran removing tube 5 is not used. The blower provided for this purpose, the pipe 8 for guiding bran, and the bran tank 80 are also omitted.

The embodiment device configured as described above operates as follows.

If the cylindrical body 2 that supports the storage shaft of the screw 3 is supported on the underframe 1 in an upwardly inclined position so as to rise toward the outlet 20 side, grains etc. can be transferred from the supply hopper 4 to the cylindrical body. When the grains are supplied into the barrel of the grain 2, are forced toward the outlet 20 side by the screw 3, and are pressurized by the resistance of the resistance plate 6 provided at the outlet 20, the weight of the grain itself increases due to the resistance. This is added to the resistance of the resistance plate 6 due to the spring pressure of the spring 61. This added resistance can be adjusted as desired by changing and adjusting the upward inclination angle toward the outlet 20.

Further, the spring pressure of the spring 6 that urges the resistance plate 6 toward the closing side is made zero, and the cylindrical body 2 that stores and supports the screw 3 is placed in a downwardly inclined position so as to descend toward the outlet 20 side. If it is supported by the underframe 1, grains, etc. are fed from the supply hopper 4 into the barrel of the cylindrical body 2, and the screw 3 feeds the grains to the outlet 2.
When the grains are forced to the 0 side, they flow toward the outlet 20 due to their own weight, so that the pressure applied to the grains by the screw 3 becomes negative. The effect of negative pressurization can also be adjusted as desired by adjusting the downward inclination angle.

As explained above, the screw-type crusher/grain milling machine according to the present invention has a cylindrical body 2 which stores and supports a screw 3 for pumping material into the cylinder, and the axial direction of the cylindrical body 2 is The outlet 2 of the cylindrical body 2 is supported on an underframe so as to be tiltable and rotatable so as to be freely changed between an upwardly inclined position and a downwardly inclined position toward the outlet 20 at one end of the body 2.
0 is provided with a resistance plate 6 that can be opened and closed freely, and is biased toward the closing side by a spring 61 whose spring pressure is adjustable. By creating an upwardly inclined state in which the axial direction of is inclined upward toward the outlet 20 side,
The pressure applied to the grains fed into the barrel of the cylindrical body 2 by the screw is applied to the resistance plate 6 by the spring pressure of the spring 61.
Pressure due to the weight of the grain itself is added to the resistance of In this state, the weight of the grain itself becomes negative for the pressure with which the screw 3 pumps the grain, and the pressure applied to the grain is reduced to below the spring pressure of the spring 61, and milling is performed. Therefore, in a wide range from a pressure greater than the spring pressure of the spring 61 that urges the resistance plate 6 toward the closing side to a small pressure less than the pressure of the pumping by the screw 3 when the spring pressure is zero,
A screw-type crusher/grain miller that allows you to adjust the pressure applied to the grains, and allows you to freely select the degree of polishing and crushing according to the properties of the grains to be milled or crushed or the object to be crushed. is obtained.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of an apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a front view of another embodiment. Explanation of drawing symbols, 1...underframe, 10...understand,
11... Support column, 12... Assembly seat, 13... Plate-like part, 14... Set bolt, 15... Nut, 2
... Cylindrical body, 2a ... Trunk peripheral wall, 20 ... Outlet, 2
1... Receiving port, 22... Fitting portion, 23... Sliding plate, 24... Long groove, 3... Screw, 30...
Rotating shaft, 4... Supply hopper, 40... Outlet,
41... Fitting portion, 5... Bran removal net, 6... Resistance plate,
60... Support shaft, 61... Spring, 7... Connection pipe, 8
...pipe, 80 ... bran tank, w ... shaft center line.

Claims (1)

[Scope of utility model registration request] A cylindrical body 2 housing and pivotally supporting a screw 3 for pumping material into the cylinder is tilted downward from a position in which the axial direction of the cylindrical body 2 is tilted upward toward an outlet 20 at one end of the cylindrical body 2. A spring 61 is supported on an underframe so as to be tiltable and rotatable so as to freely change its posture, and a resistance plate 6 is provided at the outlet 20 of the cylindrical body 2 so that the spring pressure can be adjusted. A screw-type crusher/grain mill that is biased toward the closed side.