JPH0134561B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a seeding machine that sows seeds one by one.

The above-mentioned seeding machine allows the seed grains stored in the seed hopper to be inserted one by one into the feeding groove provided in the feeding mechanism and carried out to the seed conduit.
The seeds are fed out one by one intermittently. However, in reality, by getting a few seeds into the feeding groove, more seeds than the specified number can be sown, and therefore, when the sown seeds germinate, thinning need.

This means that many of the seeds are not properly spherical;
It has an elongated shape with a long axis and a short axis, and when it is inserted into the feeding groove, it stands in a standing position with the direction of the long axis facing up and down, so that several seed grains are placed in the feeding groove. Due to the inclusion of The reason why the seed grains are drawn out in an upright position is because the seed grains housed in the seed hopper are brought into an upright position by the pressure of the accumulated seed grains. There is a known method of preventing the seed grains from aligning in an upright position by vibrating the hopper to bring the seed grains into a fluid state, but it is not perfect, and even with such a method,
It is difficult to correctly control and feed out seed grains one by one from a seed hopper.

The present invention solves this problem by creating a new system that allows seed grains to be correctly fed out one by one using a feeding groove formed in a size corresponding to the seed grains while preventing mistakes in seed feeding. The purpose is to provide a means.

In the present invention, as a means to achieve this objective, a belt for feeding out seeds that rotates endlessly is installed between the lower surface of the discharge port of the seed hopper mounted on the machine body and the seed conduit. The belt is provided with feeding grooves at appropriate intervals in the feeding direction so as to fit the seed grains to be sown.
The long axis is formed in a size several tenths larger than a single seed grain in a lying position, and is formed in the shape of a punched hole that penetrates from the outer surface side to the inner surface side of the belt, and The wall thickness of the belt is formed to be much thinner than the long axis of the seed grains so that one half of the various grains that are fitted in the feeding groove in a standing position with the long axis vertically protrudes. On the inner side of the stroke side,
A guide plate is disposed in sliding contact with the inner surface of the belt, and a guide plate is disposed on the outer surface of the belt at a position forward of the discharge port of the seed hopper in front of the seeds in the feeding direction of the belt, and a lower edge of the belt is disposed on the outer surface of the belt. The present invention proposes a seeding machine characterized in that an appropriate number of brushes are disposed in sliding contact with the outer surface and rotate in a direction opposite to the feeding direction of the belt.

Next, an example of implementation will be specifically described with reference to the drawings. In Figures 1 to 3, 1 is the main machine frame that constitutes the body of the seeding machine A. It is made in the shape of a long girder in the front and back, and the front end (the left end in Figure 1) is equipped with a feeding mechanism a, which will be described later. A front wheel 2, which also serves as a driving wheel, is pivotally supported, and a rear wheel 3 is pivotally supported at the rear end. Reference numeral 4 denotes a mounting machine frame for the feeding mechanism a which is detachably assembled to the main engine frame 1, and is formed into a plate shape rising from the main engine frame 1, and has a drive shaft for the feeding mechanism a at the upper end on the front end side. A rotating shaft 5 is horizontally supported.

Reference numeral 6 denotes a machine frame of the feeding mechanism a, which is made in the shape of a long girder rod in the front and back, and its front end is supported on the rotating shaft 5 so that it can freely rotate around the rotating shaft 5, and
The front and rear intermediate portions are supported by the mounting frame 4 so as to be adjustable up and down by means of a set screw 8 fitted into an arc-shaped long hole 7 provided in the mounting frame 4 and a tightening nut 9 screwed into the set screw 8. By this adjustment, the rear end side, which is the rotation end, is rotated up and down about the aforementioned rotation shaft 5, and the inclination angle of the machine frame 6 can be freely adjusted. The machine frame 6 has a driving pulley 10 rotatably supported at its front end which rotates about the rotating shaft 5, and a driven pulley 11 rotatably supported at its rear end.
A wide belt 12 for feeding out seeds is endlessly stretched around the belt 11. This belt 12 is formed to have a thickness thinner than the length on the long axis side of the seeds to be sown, and a single seed grain G is formed in a feeding groove 13 provided for inserting and feeding the seeds on the long axis side. The belt 12 is formed in a size such that it can be inserted into the belt 12 in a lying position, and is formed in the shape of a punched hole that passes through the belt 12 from the outside side to the inside side. The belt 12 is made depending on the seeds to be sown, and is attached to the pulleys 10 and 11 interchangeably. This replacement is carried out by rotating the rotating shaft 14 of the driven pulley 11, which is pivotally supported on the rear end of the machine frame 6, against the bias of a spring 15 acting to pull the rotating shaft 14 rearward. This is done by moving the drive pulley 10 and the driven pulley 11 forward along a shaft hole 16 provided as an elongated hole in the front-back direction at the rear end of the drive pulley 10 and the driven pulley 11.

20 is a belt 1 for feeding out seeds of the above-mentioned feeding mechanism a.
2, the sprocket 22 provided on the rotating shaft 21 of the front wheel 2 and the sprocket 2 provided on the rotating shaft 5 of the drive pulley 10.
3 and the chain 2 that was endlessly applied to them.
4, the drive pulley 10 is driven by the rotational force of the front wheel 2 that rotates as the aircraft advances, and the upward rotation side, which is the feeding stroke side of the belt 12, is connected to the front end, which is the inclined rising end. Rotate it to the side.

Reference numeral 30 denotes a guide plate provided on the inner surface of the upper rotating portion of the seed feeding belt 12, which is on the feeding stroke side, and is formed in a channel shape with a cross section opening downward, and is connected to the feeding mechanism described above. It is assembled to the upper surface of the machine frame 6 of FIG. a with a set screw 31 so that the upper surface comes into sliding contact with the inner surface (lower surface) of the belt 12.

40 is a seed hopper for supplying seed grains to be sown to the starting end (rear end in FIG. 1) on the feeding stroke side of the seed feeding belt 12; The belt 12 is provided with a discharge port 41 formed long in the front and back with a somewhat narrow width, and the discharge port 41 is formed on the starting end side of the belt 12 so that the discharge port 41 is joined to the upper surface of the starting end of the belt 12 as shown in FIG. It is arranged upward and is fixedly supported by the above-mentioned guide plate 30 by a suitable stay 45. A gate-shaped outlet 4 is provided at the lower end of the front wall 42 of the hopper 40 facing the above-mentioned outlet 41.
3 is formed, and a brush 44 whose lower end is in sliding contact with the upper surface of the belt 12 is vertically disposed at the outlet 43 thereof.

A guide trough 50 is disposed in front of the outlet 43 of the hopper 40 and above the belt 12, and is formed in the shape of a channel whose bottom surface opens to a width slightly narrower than that of the belt 12. It is supported by the stay 51 on the guide plate 30 described above, and the lower surface of the left and right side edges of the open opening 52 on the bottom surface is connected to the guide gutter 5.
The belt 12 is in sliding contact with the upper surface of the belt 12 via a cushion material 53 attached to the lower surface of the front wall 54, and a gate-shaped opening 55 that opens forward is provided at the lower end of the front wall 54. A brush 56 is vertically disposed in sliding contact with the upper surface of the belt 12.

Reference numeral 60 denotes a brush disposed on the upper surface side of the belt 12, as shown in FIGS. 4 and 5.
A rotating shaft 61 is supported across the left and right side walls of the guide trough 50, and a sprocket 62 attached to one end of the rotating shaft 61 is connected to a sprocket 63 provided on the rotating shaft 5 of the drive pulley 10. chain 64
The lower surface of the belt 12 in sliding contact with the upper surface of the belt 12 is driven to rotate in a direction opposite to the direction in which the belt 12 is fed. The belt 1 is equipped with this brush 60 and the above-mentioned feeding groove 13.
2, the guide plate 30, and the machine frame 6 constitute a feeding mechanism a.

The brush 60 may be driven to rotate in the forward direction of the feeding direction of the belt 12 on the lower surface side that slides on the upper surface of the belt 12, or may be driven to reciprocate back and forth.

70 is a vibration mechanism that vibrates the seed hopper 40; in this embodiment, the seed hopper 40
The above-mentioned guide plate 30, which also serves as the mounting machine frame,
When assembling to the machine frame 6 via the set screw 31, the elastic material 71 is interposed and the guide plate 3
At the front end of 0, a spring plate 7 is attached as shown in FIG.
2 is attached, and the front end of the spring plate 72 is provided on the flange 10a of the drive pulley 10.
3, the spring plate 72 vibrates due to the rotation of the drive pulley 10, and the guide plate 30
The hopper 40 is made to vibrate in various ways.

80 is various from the discharge port 41 of the hopper 40,
This is a seed conduit that guides seed grains that are inserted into the feeding groove 13 provided in the belt 12 and carried out and released at the rotating section on the front end side of the belt 12, and the upper end is formed into a hopper shape 81 surrounding the rotating section. Immediately behind the front wheel 2, a feed pipe 82 at the lower end, which can be freely adjusted up and down, doubles as a ridge shaper for forming small ridges on the seed bed by forming the treading surface into a deep concave surface, as shown in FIG. It is positioned so as to face the main engine frame 1 and supported by the main engine frame 1. In addition, as shown in FIG.
The front wheel 2 is sown with seed grains released from the front wheel 2.
The soil is covered by pressing down on the small ridges formed by the soil.

Note that the member 8 indicated by the chain line in FIG.
Reference numeral 3 denotes a control handle that is attached when the body of the seeding machine A is pushed by hand and driven manually, and in the embodiments shown in FIGS. It is formed approximately 1.3 times the size of the matured seed grain G.

The embodiment device constructed in this manner operates as follows.

The seed sowing machine A is driven by a tractor or the like, and the seed dispensing mechanism a is driven by an appropriate means to drive and rotate the seed dispensing belt 12, so that the seeds are stored and deposited in the seed hopper 40. The seed grains are discharged from the discharge port 4 of the seed hopper 40.
The belt 12 rotates on the lower surface of the seeds 1, and the seeds are carried out by fitting into the feed grooves 13 provided at predetermined intervals so as to have a predetermined spacing between the plants, and are discharged into the seed conduit 80 and sown. It becomes like this.

At this time, the seed grains G that fit into the delivery groove 13 of the belt 12 tend to enter the delivery groove 13 in a standing position with the long diameter side of the seed grain G facing up and down, as shown in FIG. , there is a tendency for two or three seed grains G to become embedded. However, the seed grains G that are inserted more than the specified single grain in this way can be removed because the feeding groove 13 is transparent in the form of a punched hole and the guide plate 30 is provided on the inner surface of the belt 12. The lower end side of the seed grain G comes into sliding contact with the upper surface of the guide plate 30 and is carried out.
As shown in the figure, either the excess seed grain G is pushed out and the single seed grain G assumes a lying position and is fitted into the feeding groove 13 in a stable state, or the excess seed grain G is fed out as shown in FIG. The seed grain G fitted into the groove 13 is in an upright position, with one half of it protruding from the upper surface of the belt 12.

In this way, the seed grains G, which are in a standing position and fitted into the feeding groove 13 and whose upper half side protrudes toward the upper surface side of the belt 12 by the guide plate 30, are rotated by the rotation of the belt 12. While the seed hopper 40 moves in the feeding direction in this state and passes through the lower surface side of the discharge port 41 of the seed hopper 40 and is fed out toward the seed conduit 80, the lower edge side slides into contact with the outer surface side of the belt 12, and the belt 12 At this time, as shown in FIG. Only one seed grain G, which has been swept out and fitted into the feeding groove 13 in a lying position, is carried toward the seed conduit 80.

As explained above, the seeding machine according to the present invention has the following features:
Discharge port 41 of the seed hopper 40 mounted on the aircraft body 1
Between the lower surface and the seed conduit 80, a belt 12 for feeding out seeds that rotates endlessly is stretched upwardly in the feeding direction, and the belt is stretched so that the seed grains G to be sown are inserted therein. Feeding grooves 13 provided at appropriate intervals in the feeding direction in the belt 12 are formed in a size several tenths larger than a single seed grain G in a lying position with its major axis sideways. The belt 12 is formed in a punched hole shape that penetrates from the outer surface side to the inner surface side, and the thickness of the belt 12 is set such that the seed grain G is inserted into the feeding groove 13 in an upright position with its long axis vertical. The belt 12 is formed to be much thinner than the long axis of the seed grain G so that one half side protrudes, and the belt 12
A guide plate 30 is disposed in sliding contact with the inner surface of the belt 12, and a lower guide plate 30 is disposed on the outer surface side of the belt 12 at a position forward of the discharge port 41 of the seed hopper 40 in front of the seed conduit 80 in the feeding direction of the belt 12. Since an appropriate number of brushes 60 are arranged so that the edge side slides on the outer surface of the belt 12 and rotates in a direction opposite to the direction in which the belt 12 is fed out, the brush 60 is placed in a lying position within the feeding groove 13. The seed grains G are inserted easily one by one. Then, the feeding groove 1 into which one seed grain G is inserted
3, the seed grain G in a standing position in the gap formed by the periphery of the seed grain G and the size of the margin of the feeding groove 13.
As the lower end side of the belt 1 becomes stuck, the extra seed grains G that are inserted in an irregular position are removed from the belt 1.
With the guide plate 30 in contact with the inner surface of the belt 12, the upper half side is in a state of protruding toward the outer surface of the belt 12, and by sweeping the protruding portion with the brush 60, the excess seed grains G that have been inserted are swept out from the feeding groove 13. Since only one seed grain in a lying position is left in the feeding groove 13, sowing can be reliably carried out one by one without causing any missing plants.

[Brief explanation of drawings]

Fig. 1 is a side view of a seeding machine that can carry out the present invention, Fig. 2 is a side view seen from the opposite side of the same, Fig. 3 is a plan view of the same, and Fig. 4 is a longitudinal cross-sectional side view of the main parts of the same. ,
FIG. 5 is a vertical sectional front view of the same essential parts, FIG. 6 is a perspective view of the same parts, and FIGS. 7, 8, 9, and 10 are explanatory views of the operation. Explanation of drawing symbols, A... Seeding machine, a... Feeding mechanism, 1... Main engine frame, 2... Front wheel, 3... Rear wheel, 4
...Mounting machine frame, 5...Rotating shaft, 6...Machine frame, 7...
...Long hole, 8...Screw, 9...Tightening nut, 10...
...Drive pulley, 10a...Flange, 11...
Driven pulley, 12... Belt, 13... Feeding groove, 14... Rotating shaft, 15... Spring, 16... Shaft hole, 20... Drive mechanism, 21... Rotating shaft, 22,
23...Sprocket, 24...Chain, 30
... Guide plate, 31 ... Set screw, 40 ... Seed hopper, 41 ... Discharge port, 42 ... Front wall, 4
3... Feeding port, 44... Brush, 45, 51...
Stay, 50... Guide gutter, 52... Opening port, 53
...Cushion material, 54...Front wall, 55...Opening port, 56, 60...Brush, 61...Rotating shaft, 6
2, 63...Sprocket, 64...Chain,
70... Vibration mechanism, 71... Elastic material, 72... Spring plate, 73... Teeth, 80... Seed conduit, 81...
...hopper shape, 82...feeding pipe, 83...member,
G... Seed grain.

Claims (1)

[Claims] 1. Between the lower surface of the discharge port 41 of the seed hopper 40 mounted on the machine body 1 and the seed conduit 80, a belt 12 for feeding out seeds that rotates endlessly is stretched upwardly in the feeding direction. , the belt 1 is inserted into the seed grain G to be sown.
2, the feeding grooves 13 provided at appropriate intervals in the feeding direction are formed to have a size several tenths larger than a single seed grain G in a lying position with its major axis sideways. The belt 12 is formed in a punched hole shape that penetrates from the outer surface side to the inner surface side, and the thickness of the belt 12 is set such that the seed grain G is inserted into the feeding groove 13 in an upright position with its long axis vertical. A guide plate 30 is formed to be much thinner than the long axis of the seed grain G so that one half side protrudes, and a guide plate 30 that slides on the inner surface of the belt 12 is disposed on the inner surface of the belt 12 on the seed feeding stroke side.
On the outer surface side of the belt 12, a lower edge side is in sliding contact with the outer surface of the belt 12 at a position in front of the seed conduit 80 in the feeding direction of the belt 12 and in front of the discharge port 41 of the seed hopper 40. 12
A seed sowing machine characterized by having an appropriate number of brushes 60 that rotate in a direction opposite to the feeding direction of the seed sowing machine.