JPS6242759Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a device for variable adjustment of the suction direction of paddy of a suction nozzle in a dehusker or the like using a defan. A conventional dehusher using a dehulling fan is designed to dehustle the paddy by colliding the inner wall lining inside the casing with the paddy flying at high speed from the dehulling fan. In other words, removing fufun is
It consists of a large number of rotary blades arranged radially, and
The structure is such that the paddy is blown away by centrifugal force from between these rotary blades, and the husks that fly off due to this fan colliding with the inner wall lining, which is the terminal part for sliding out, and the impact at that time destroys the paddy husk. It is made so that it can be torn and the brown rice and chaff can be separated. In such an impact-type removing device, in order to increase removal efficiency, the exit direction of the suction nozzle that supplies the rice grains from the hopper into the casing, that is, the flying direction of the rice grains, is fixed in a specific direction. Therefore, in general, by setting the flight direction in a fixed manner in this way, it is possible to sufficiently increase the removal efficiency, but depending on the type of paddy, drying condition, etc., there may be differences in the impact force, causing brown rice to drop. There is a risk of the shell cracking, shifting of the shell, and damage to the embryo. Conventionally, these defects have been prevented by lowering the fan removal rotation speed, but this has resulted in the problem that lowering the fan removal rotation speed reduces the suction force and lowers removal efficiency. . Therefore, the present invention has been developed to allow variable adjustment of the paddy suction direction in order to increase sufficient defaning efficiency according to the type of paddy and drying condition by freely adjusting the exit direction of the suction nozzle without lowering the defaning rotation speed. The purpose is to provide a device. In order to achieve this objective, the structure of the present invention is such that a suction nozzle is rotatably arranged in a case, two elongated holes are bored in the case, and a flange is fixed to the body of the suction nozzle. In addition to drilling a bolt hole opposite to the above long hole,
The direction of the exit of the suction nozzle can be variably adjusted by inserting the tip of a bolt whose rear end is locked into the bolt hole into the long hole and moving the bolt along the long hole. It is assumed that this was done. Hereinafter, the present invention will be explained based on the illustrated embodiments. As shown in FIG. 1 and FIG.
A removing section 2 is provided on the lower side of the main body 1, and the removing section 2 receives paddy to be processed and other similar grains from a hopper 3 provided above the side of the main body 1 through a suction nozzle 37 (third (see Figs. 5 to 5). In this removal section 2, the paddy is collided with the buffer sheet 30 (see Figs. 3 to 5) which is the inner wall lining of the case 4 which is a casing due to centrifugal force, and the paddy husk is broken by the impact and becomes brown rice. The paddy shells will be separated. It should be noted that paddy, rice bran, straw waste, etc. are mixed into the hopper 3 and fed into the removing section 2 as they are. The brown rice, chaff, rice cake, straw waste, etc. separated in the removing section 2 are sent as they are to the sorting section 6 in the main body 1 via the pipe 5. Inside the sorting unit 6, although not shown, a plurality of wind cylinders with different diameters are arranged, one of which communicates with the paddy hull discharge port via a fan, and the other with the air suction port and the unpolished rice. The air is sucked through the air suction port by the rotation of the fan, and the brown rice, unprocessed paddy, paddy husks, rice cakes, straw waste, etc. that fall into the wind barrel are removed by wind pressure. Straw waste and rice husk with light specific gravity are discharged outside from the rice husk discharge port by a fan, and rice grains are separately discharged outside from the rice grain discharge port, Heavy brown rice and paddy are sent from the take-out port to a lifting device 7 attached to the main body 1. Although not shown, in the lifting device 7, a large number of buckets facing the takeout port are rotatably arranged via a conveyor, and the brown rice and paddy stored in the buckets are transferred to the main body 1 via the conveyor and buckets. It is designed to be transported to a tank 8 positioned above. The brown rice and paddy supplied to the tank 8 are uniformly discharged to an internal mangoku device (not shown). Although not shown in the figure, slanted nets are arranged in three stages inside this Mangoku device, and brown rice and paddy are sorted within this Mangoku device. (not shown)
In addition, the paddy is returned to the hopper 3 via a paddy chute (not shown) to be deprocessed again. In other words, untreated paddy is recycled and completely removed. As shown in FIGS. 3, 4, and 5, the removal part 2 is a snail-shaped case 4.
It has a plurality of rotary blades 21 rotatably disposed on the rotor. The case 4 is fixed to the main body 1 side of the removal device via a bracket or the like (second
), this case 4 has a lid fixed to it that has the same shape as this case 4, and this case 4
It has a so-called de-fan inside. That is, a rotating shaft 25 passes through the center of the case 4, and a rotating disk 26 is rotatably coupled to the rotating shaft 25 within the case 4 via a bearing or the like. The disk 26 has a plurality of rotary blades 21 arranged in a radial direction about the rotating shaft 25 (see FIG. 3). The rotary blade 21 is also coupled to another disc 26' facing the disc 26. That is, the plurality of rotary blades 21 are connected to a pair of disks 2
6 and 26', and its axial direction is a radial direction centered on the rotating shaft 25. Therefore, the rotary blade 21 constituting the defaning unit has a rotation axis 25 with respect to the discs 26, 26'.
By connecting, for example, 36 blades at an angle of 10 degrees around , a considerably wide gap is formed between the rotary blades 21. A buffer sheet 30 serving as an inner wall lining is disposed on the inner wall in the circumferential direction of the case 4. This buffer sheet 30 is made of rubber or other material having appropriate elasticity so that the paddy that collides with it will not be crushed. They are made of similar materials. Next, in the case 4 of the removed part 2, there is a large hole 3 in the center.
A suction nozzle 37 serving as an outlet of the hopper 3 is disposed within the hole 35 . and,
The outlet 38 of this nozzle 37 opens at the center of the group of rotary blades 21, so that grains such as paddy from inside the hopper 3 are supplied to the center of the defaner. Note that the case 4 may be formed with a cutout window of an appropriate shape, and the cutout window may be selectively opened to draw the atmosphere into the case 4, that is, into the detached portion 2. The removal section 2 formed as described above is provided with a variable adjustment device for paddy suction direction according to the present invention. That is, the case 4 has two semicircular elongated holes 1 located on both sides of the hole 35, as shown in FIG.
0, 11 are formed, and these long holes 10, 11
A threaded end portion of a bolt 12 is movably inserted into each of the holes. On the other hand, the suction nozzle 37 has
As shown in FIG. 4, it has a flange 40 fixed to its body 39, and bolt holes are bored in this flange 40 opposite to the elongated holes 10 and 11 on the case 4 side. The rear end of the bolt 12 is inserted into and the bolt 12 is locked there. That is, the chute 37 is fixed to the case 4 side by abutting the flange 40 against the inner surface of the case 4, inserting the bolts 12 into the bolt holes and the elongated holes 10 and 11, and fixing them with wing nuts or the like. be. Therefore, by loosening the wing nuts and the like to allow the bolts 12 to move freely within the elongated holes 10 and 11, the flange 40 can be rotated to any rotational position. By rotating, the direction of the outlet 30 of the suction nozzle 37, that is, the flying direction of the rice grains etc. discharged from the suction nozzle 37 toward the inner peripheral surface of the case 4 can be freely selected. Next, the operation of the above-mentioned removal device will be described. First, the rice, rice cake, etc. supplied to the hopper 3 are sent to the center of the defaning part 2 through the suction nozzle 37. At this time, inside the removal part 2, that is, inside the case 4, the disc 2 is inserted through the rotating shaft 25.
6, 26' and the rotor 21 connected thereto are rotating, and the centrifugal force accompanying the rotation causes the paddy sent to the center of the defan to collide with the buffer sheet 30 provided on the inner surface of the case 4. That will happen. Then, the paddy husks collided with the buffer sheet 30 are broken by the impact and separated from the brown rice, and the separated brown rice and the paddy husks are sent to the sorting section 6 via the pipe 5. In addition, since the rotary blades 21 are provided in a radial manner, for example, 36 pieces, the gaps between the rotary blades 21 are relatively large, and a large number of rice grains are blown away from this gap, increasing the processing efficiency. Furthermore, if the rotary blade 21 is appropriately provided with a buffer member made of rubber or the like, it is possible to prevent large impact from being applied to the rotor blade when the paddy blown in the direction of rotation hits this buffer member.
Moreover, it is possible to prevent damage to the rotary blade 21, splitting of the hull of the paddy, and shearing of the skin. Next, the exit direction of the suction nozzle 37, that is,
When attempting to change the deefficiency by changing the flight direction of paddy, etc., loosen the bolt 12 that is locked to the flange 40 fixed to the suction nozzle 37, and By moving the suction nozzle 37 along the elongated holes 10 and 11, the body of the suction nozzle 37 is rotated, and the direction of the outlet 38 is moved clockwise or counterclockwise. This makes it possible to change the direction of the outlet 38 of the suction nozzle 37, that is, the paddy suction direction, depending on the quality of the paddy. Here, an experimental example will be shown using the removing device according to the above embodiment, which is equipped with the variable adjustment device for paddy suction direction according to the present invention. [Experiment example] Figure 3 shows the direction of supply of strained light for soft rice produced in the Nishigun district of Miyazaki Prefecture with a dryness of 13.5%.
Assuming that the direction of the exit 38 is horizontal and that it is displaced 30 degrees upward and 30 degrees downward as A, B, and C in sequence, the results are as follows. This experimental result shows that it is preferable to set the nozzle at position A in the case of the above-mentioned rice.

[Table] As described above, according to the present invention, the exit direction of the suction nozzle, that is, the paddy suction direction can be freely changed and adjusted. This can be improved accordingly.

[Brief explanation of the drawing]

The attached drawings relate to one embodiment of the present invention and are
The figure is a front view of the scrubbing machine, Figure 2 is a side view, Figure 3 is a front view of the removal part, Figure 4 is a sectional view taken along the - line in Figure 3, and Figure 5 is a - line in Figure 4. 6 is a front view of the nozzle, and FIG. 7 is a sectional view taken along the line -- in FIG. 6. 4...Case, 10, 11...Long hole, 12...
Bolt, 37... Nozzle, 38... Outlet, 39...
...Body, 40...Flange.

Claims (1)

[Scope of utility model registration request] A suction nozzle is installed in the case in a rotating self-propelled material, and two elongated holes are bored in the case, and bolt holes opposite to the elongated holes are bored in the flange fixed to the body of the suction nozzle. At the same time, the tip of the bolt whose rear end is locked in the bolt hole is inserted into the elongated hole, and the exit direction of the suction nozzle is determined by moving the bolt along the elongated hole. A variable adjustment device for the direction of paddy suction that can be variably adjusted.