JPS63344Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an awn removal machine that removes awns, stems, etc. from rice seeds.

Normally, when seed rice is sown with a seedling seeding machine,
If the seed rice has awns, stems, etc. attached to it, it will greatly affect the accuracy of sowing, so the seed rice is put in an awn remover to remove the awns and stems.
Leave the branches, stems, etc.

An awning machine has already been devised in which the seed rice is pushed through a porous awning body by a feeding screw to remove the awns. In this awning machine, the feeding screw is equipped with a synthetic resin spiral. A brush is used to smoothly discharge the rice seeds from the outlet of the awning body, and tough items such as stems may remain attached to the seeds.

In view of these problems, the present invention provides a resistance mechanism in front of the discharge port of the awning body, which elastically presses the rice seeds at the final position of the awning process to apply resistance and slow down the movement speed of the seeds. It is an object of the present invention to provide an awn removal machine configured to increase the force of sliding and pushing each other so as to detach even tough branches and stems.

The features of the present invention for achieving this purpose are that the awning machine for separating the awns and stems from the seed rice has a seed supply port at one end and a discharge port at the other end, and has an uneven inner circumferential surface. A cylindrical de-awning body is formed, a feeding screw which is arranged concentrically inside the awn-decapitating body and feeds the seed rice supplied from the supply port to the discharge port, and a discharge port of the awn-decaption body. The present invention has a resistance mechanism which is placed facing the rice grains and elastically presses the fed seed rice to apply a resistance force.

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 5, the awning machine 1 is roughly divided into a cylindrical awning body 2 whose axis is arranged horizontally;
A feeding screw 3 is arranged concentrically within this awning removal body 2, an outer cylinder 4 is arranged concentrically to surround the awning removal body 2, and this outer cylinder 4 is A supporting frame 5, a hopper 6 detachably provided on the upper part of the frame 5, and a suction mechanism 7 disposed at the end of the outer cylinder 4 on the seed A supply side.
and a resistance mechanism 8 provided on the front surface of the outlet of the awn removal body 2.

The awning body 2 is an octagonal punching plate with a large number of holes 11 formed therein, and has a seed supply port 12 on the peripheral surface of one end and a discharge port 13 on the other end. Grooves 14 parallel to the axis of the holes 11 are formed on the inner surface of the deawning body 2, and like the holes 11, they are uneven to allow the awns B and stems C to separate from the seed A. The awning body 2 may be formed of a net, and its cross-sectional shape may be hexagonal, circular, or the like.

The feed screw 3 passes through the inside of the awn removal body 2, and is rotatably supported at one end by the frame 5 via a bearing 16 and at the other end by the outer cylindrical body 6 via a bearing 17, and is connected to a chain transmission means. It is driven by a motor 19 via 18. This feeding screw 3 is constructed by having peristaltic brushes 21 arranged in a spiral shape around a shaft 20.

The peristaltic brush 21 is a synthetic resin brush 21a that is hard enough not to damage the seed rice A, and a grooved metal rod 22.
It is implanted in the groove of the shaft 20, wound spirally around the shaft 20, and welded to the shaft 20. In the axial direction of the shaft 20, coarse parts S and dense parts P are formed alternately.

The seed rice A is quickly sent in a coarse state to the coarse pitch section S, and is sent in a dense state to the dense pitch section P while slowly being pushed against each other. That is, the feeding screw 3 moves the seed rice A in peristaltic motion while
The grains A are moved from the supply port 12 to the discharge port 13, and along the way, the holes 11 and grooves 14 of the dehulling body 2 are removed due to the rubbing of the seeds A against each other due to peristaltic motion.
By locking the awn B and branch stalk C, the awn B and branch stalk C are released. The detached awn B and ramus fall into the outer cylindrical body 6 through the hole 11.

Further, a pushing portion 24 is formed near the discharge port 13 of the feeding screw 3. This pushing part 24
is a shaft 20 with short round rods 25 arranged in a spiral pattern and welded to the shaft 20, which resists the resistance force of the resistance mechanism 8 and
Push it strongly.

The outer cylindrical body 4 supports the awn removal body 2 via support members 28 and 29, and the end close to the supply port 12 is open facing the suction mechanism 7, and the end close to the discharge port 13 is open. A dropping port 30 for the seed rice A is formed on the lower surface. A ventilation passage 3 is provided between the outer cylinder body 4 and the awning body 2.
1 is formed, and the air sucked from the drop port 30 by the suction mechanism 7 passes through the ventilation path 31 and collects the awns B and ramus C that have fallen into the outer cylinder 4 below the suction mechanism 7. The dust is discharged from the dust exhaust port 33 to the dust collection basket 34. This dust collection basket 34 is formed of a fine mesh net.

A cap 35 is provided at the drop port 30 of the outer cylinder 4, and an air suction path 36 is formed by the cap 35. Seed rice A falling from the drop port 30
Some of them are incompletely matured, and they have less endosperm and are lighter than fully matured ones, so they are blown into the ventilation path 31 by the levitation force of the air passing through the air suction path 36, that is, by the wind force. and is removed to the dust collecting basket 34 together with the awn B and the branch stem C.

Reference numeral 37 denotes a wind force adjustment means provided on the upper part of the outer cylinder 4, and is configured to open and close an air intake port 38 formed in the outer cylinder 4 with an adjustment lid 39, and this adjustment lid 39 has two A book groove 39a is formed, and 2
A thumbscrew 40 passes through the groove 39a and is screwed into the outer cylinder 4. Tightening and loosening the thumbscrew 40 adjusts the position of the adjustment lid 39 to change the size of the air intake port 38. By doing so, the amount of air taken into the ventilation passage 31 is adjusted.

If the amount of air flowing in from the air intake port 38 is large, the amount of air suctioned from the drop port 30 will be reduced, and the wind power will be reduced, so that only particularly light among the immature seed rice will be removed. Conversely, the air intake port 3
If the amount of air flowing in from 8 is small, use the drop port 30.
The amount of air sucked in increases, the wind force is large, and relatively heavy immature seed rice is also removed.

The hopper 6 is fitted into the upper part of the frame 5, is removably fixed with a bolt 43, penetrates the outer cylinder 4, communicates with the supply port 12, and dehusks the seed A in fixed amounts. Supplied into the body 2.

The suction mechanism 7 includes a fan 45 fixed to the shaft 20 of the feeding screw 3 and a cover body 47 surrounding the fan 45 and forming a suction chamber 46. The cover body 47 is attached to the frame 5. It is fixed, communicates with the outer cylindrical body 4, and is connected to its end.

The resistance mechanism 8 includes a spring 5 in front of the discharge port 13.
A disc-shaped resistor 51 which is compressed by 0 is arranged to elastically press the seed rice A discharged from the discharge port 13 to provide a resistance force, thereby preventing the sliding of the seed rice A against each other within the awning body 2. The awn is removed more completely by making more touching and pushing movements.

The resistance mechanism 8 is shown in detail in FIG. 4 and FIG. It slidably penetrates the disc 53 that
Moreover, the spring 50 is fitted.

A support member 54 that supports the bearing 17 that supports one end of the shaft 20 of the feed screw 3 is fixed to the outer cylinder 4, and two threaded rods 55 project outward from the support member 54. This threaded rod 5
5 passes through the disc 53, a wing nut 56 is screwed thereto, and a spring 57 is fitted in a portion between the disc 53 and the support member 54.

The disk 53 is slidable with respect to the outer cylinder 4, and by rotating the wing nut 56 and changing the position of the disk 53 with respect to the threaded rod 55, the elastic force of the spring 50 is adjusted and the resistance is increased. The resistance given to the seed rice A through the body 51 is adjusted.

In this embodiment, the resistance given by the resistor 51 to the seed rice A can be adjusted.
5. It is also possible to fix the disc 53 to the outer cylinder 4 without providing the wing nut 56 and the spring 57, and to provide a certain resistance force only by the elastic force of the spring 50. good.

Further, in the present invention, a pushing part 24 is provided at the final part of the feeding screw 3 to move the seed rice A more forcefully against the resistance of the resistor 51. Even if the moving part 24 is not provided and a spiral brush with no density is formed up to the discharge port 13, a sufficiently large awn removal effect can be obtained compared to an awn removal machine not provided with the resistor 51. Furthermore, even with a configuration in which only one disc-shaped resistor is attached to the awn removal body 2 via a tension spring, the discharge port 1
3 It is possible to suppress the nearby seed rice A and give it resistance.

Reference numeral 60 denotes a cleaning opening formed in the lower part of the outer cylinder 4, which is opened and closed by a lid 62 provided on the outer cylinder 4 via a hinge 61.

In the present invention described in detail above, a resistance mechanism is provided in front of the discharge port of the awning body to provide elastic resistance to prevent the seed rice from being discharged. The moving speed of neighboring rice seeds decreases, and they forcefully slide against and push each other, making it possible to reliably separate even strong branches and stems from the seed rice, allowing for more complete awning. becomes.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall perspective view, FIG. 2 is a vertical cross-sectional view, and FIG. 3 is a second cross-sectional view.
Figure 4 is a longitudinal sectional view of the main part,
FIG. 5 is a view taken along the arrows in FIG. DESCRIPTION OF SYMBOLS 1...Awning remover, 2...Awning removing body, 3...Feeding screw, 4...Outer cylinder body, 5...Frame, 6...
Hopper, 7... Suction mechanism, 8... Resistance mechanism, 11
...hole, 12 ... supply port, 13 ... discharge port, 21
...Peristaltic brush, 50,57...Spring,
51...Resistor, 53...Disk, 54...Supporting member, A...Seed, B...Awn, C...Branch.

Claims (1)

[Scope of utility model registration request] A cylindrical awn removal machine that separates awns and stems from seed rice includes a cylindrical awn removal body having a seed supply port at one end and a discharge port at the other end, and having unevenness formed on its inner circumferential surface; A feeding screw arranged concentrically inside the awning body to feed the seed rice supplied from the supply port to the discharge port, and a feeding screw arranged facing the discharge port of the awning body from which the seed rice is fed. 1. A de-awning machine characterized by having a resistance mechanism that elastically presses rice seeds to provide resistance.