JP2648764B2 - Seeding equipment - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a sowing apparatus for sowing a seed on a sowing bed.

[Conventional technology and its problems] As a sowing apparatus for sowing seeds on a sowing bed, a predetermined drop hole is conventionally opened on the bottom of a tank in which seeds are stored, and a guide hole having the same diameter as the drop hole. There is known a shutter plate provided with a plurality of shutter plates which are rotatably driven on the bottom surface of a tank. In order to sow seeds with this sowing apparatus, the shutter plate is rotationally driven, and the seeds are sequentially dropped from the guide holes and the drop holes to the seeding floor at the timing when the guide holes and the drop holes on the bottom of the tank communicate with each other. It has become. However, when seeding is performed by the above-described device, the seed may be bitten between the shutter plate and the tank bottom, and the seed may be broken. Further, even when the guide hole of the shutter plate and the drop hole on the bottom of the tank are in communication with each other, the seed may not fall into the guide hole, so that the seed to be sown cannot be maintained at a constant amount. Further, when the size of the seeds is different, it is necessary to replace the shutter plate with a guide hole corresponding to the size, but there is a problem that this replacement is troublesome and requires time and effort.

The present invention has been made in view of these circumstances, and aims to provide a sowing apparatus that enables sowing of a fixed amount and prevention of destruction of seeds, and also facilitates sowing of seeds having different sizes. I do.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a guide chute attached to the bottom surface of a tank in which seeds are stored and for dropping seeds onto a seeding bed, and communicating the guide chute with the tank. A shutter having a guide hole to be formed and sliding the tank bottom surface in an oblique direction, a partition plate for supplying a fixed amount of seeds to the shutter, a driving means for reciprocatingly sliding the shutter at appropriate timing intervals, and the driving means; And a fastener for detachably connecting the shutter to the shutter.

[Operation] Since the present invention is configured as described above, it is easy to replace the shutters having different hole diameters, and the partition plate that forms the metering chamber is provided. Is prevented, so that the destruction of the seed is prevented.

EXAMPLES Hereinafter, the present invention will be specifically described with reference to the accompanying drawings.

FIG. 1 is an overall side view of an embodiment in which the present invention is applied to a sowing mulching apparatus, and FIG. 2 is a sectional view of a main part showing an operation. The seeding mulching device, for example, is connected to a tractor (not shown) and performs seeding and laying of a multi-film while being indexed. Reference numeral 1 denotes a frame connected to the tractor, and a molded plate 3 is attached to the lower surface of the frame via a vertically adjustable shaft body 2. A molding roller 5 pivotally supported by an arm 4 is attached to the frame 1, and a tread wheel 7 is rotatably attached via a spring 6, and a clay plate 8 is provided at the rear end of the frame 1. Installed. The forming blank 3 cuts into the floor soil to form a partition, and the forming roller 5 forms the seeding bed by leveling the floor soil below the frame 1 by rotation. The forming roller 5 also acts to lay the band-shaped multi-film 10 wound on the film roll 9 on the seeding floor. The tread wheel 7 acts to pull out the multi-film 10 from the film roller 9 by stepping on both ends of the multi-film 10. Further, the soil collecting plate 8 collects the floor soil and forms a multi-film 10 laid on the seeding floor.
Is covered with floor soil on both sides of the multi-film 10, thereby preventing the multi-film 10 from scattering. The multi-film 10 wound around the film roll 9 is drawn out along the feed roller 11 and the guide plate 12 attached to the pole 13 on the frame 1, passes through the opening of the frame 1, and is guided below the forming roller 5. And laid on the seeding floor.

In such a sowing mulching apparatus, a sensor switch 14 is provided on the back side of the guide plate 12, and a sowing mechanism 20 for dropping seeds onto a sowing bed is provided. As shown in FIG. 2, the sensor switch 14 includes a switch box 15 and a switch lever 16 attached to a lower portion of the switch box 15. Switch lever 16
Are bent in the direction of the guide plate 12 and urged to be movable in the direction of the guide plate 12. On the other hand, an opening 12 is provided in a portion of the guide plate 12 corresponding to the bent portion of the switch lever 16.
a is formed. The multi-film 10 fed downward along the guide plate 12 has a hole 10a in its length direction.
Are formed at predetermined intervals. In such a structure, when the hole 10a of the multi-film 10 moves to the opening 12a of the guide plate 12, the switch lever 16 moves the opening 12a of the guide plate 12 and the hole 10a of the multi-film 10 as shown in FIG. And project outward. Such a sensor switch 14 generates a drive signal for driving means for sliding a shutter 24 described later at appropriate timing intervals.

As shown in FIG. 1, the seeding mechanism 20 includes a tank 21 that is detachably mounted on the frame 1 in an upright state, and a guide chute 22 that extends downward from the bottom surface of the tank 21. The seed 21 is stored in the tank 21 as shown in FIG. The bottom surface 23 of the tank 21 is formed to be obliquely inclined, a part of which is opened, and a guide chute 22 is connected to this opening. Guide chute 22
Has a lower end extending on the seeding bed, and guides the seeds to fall on the seeding bed. Such seeding mechanism
A shutter 24 is provided on the bottom surface of the tank 21 of 20. The shutter 24 is moved by a plunger by a cotter pin 31 such as an attachment.
A guide hole 25 which is attached to 26 and communicates the tank 21 and the guide chute 22 is opened. The seed A enters the guide hole 25 and acts to guide the seed A entered by sliding the shutter 24 to the guide chute 22. In the case where the shutter 24 sows seeds having different sizes, the shutter 24 having the guide hole having a diameter matching the size of the seed can be replaced via the split pin 31. It's easy. The upper part of the plunger 26 is inserted into the solenoid 27. Further, the upper portion of the plunger 26 is inserted into a return spring 28 composed of a coil spring, and is urged by the return spring 28 to slide downward. The solenoid 27 raises the plunger 26 against the spring force of the return spring 28 by energization, whereby the shutter 24 slides upward. Therefore, the plunger 26, the solenoid 27, and the return spring 28 constitute driving means for causing the shutter 24 to slide back and forth. In this case, the shutter 24 is mounted so as to slide back and forth in parallel with the bottom surface 23 of the tank 21. That is, the shutter 24 is attached so as to slide the bottom surface of the tank 21 in an oblique direction. With the structure in which the shutter 24 slides in the oblique direction, the seed A in the tank 21 is not bitten by the shutter 24, the guide chute 22, or the like, and the seed A can be smoothly guided. Therefore, destruction of the seed A due to biting can be prevented. Further, since the shutter 24 has a structure of sowing seeds by sliding back and forth,
The installation space is small and can be installed close to the seeding floor. Therefore, it is possible to reliably and easily control the falling of the seed to a predetermined position. In addition, tank
A fixed volume chamber 30 is formed by a partition plate 29 at a lower portion in the inside 21, and the guide chute 22 is connected to the fixed volume chamber 30.
By partitioning by the partition plate 29, a fixed amount of the seed A in the tank 21 is held in the fixed amount chamber 30, so that the fixed amount of the seed can be dropped and the excessive seed A is prevented from falling.

 Next, the operation will be described.

The multi-film 10 wound around the film roll 9 is previously pulled out onto the seeding bed, and adjusted so that the solenoid 10 is energized when the hole 10a coincides with the switch lever 16. This is to make the seed A dropped from the guide chute 22 coincide with the hole of the multi-film 10 laid on the seeding floor later. After such adjustment, when the apparatus is indexed by the tractor, the seeding bed is formed by the forming plate 3 and the forming roller 5, and the treading wheels 7 are formed.
The multi-film 10 is sequentially fed out by the rolling. By feeding out the multi-film 10, the multi-film 10 moves along the guide plate 12. And that hole 10
If a does not exist in the opening 12a of the guide plate 12, FIG.
The switch lever 16 does not protrude from the guide plate 12 as shown in FIG.
24 does not work. Therefore, the seed A does not fall. The hole 10a of the multi-film 10 is the opening 12a of the guide plate 12.
, The switch lever 16 is opened by the urging force.
It protrudes outward through the holes 12a of the multi-film 10 and the multi-film 10. This energizes the solenoid 27,
Since the shutter 24 is lifted diagonally upward, the guide hole
The seed A that has entered the inside 25 falls from the guide chute 22 onto the seeding floor. In this case, as described above, the shutter 24
Slides obliquely, so that there is no bite of the seed A. Then, when the apparatus further moves according to the index of the tractor and the hole 10a of the multi-film 10 comes off the opening 12a of the guide plate 12, the switch lever 16 is pushed back, so that the power supply to the solenoid 27 is stopped. Then, the return spring 28 causes the shutter 24 to return downward and slide, and the falling of the seed A is stopped. Even when the shutter 24 returns, the seed A
There is no biting. Note that the seeds dropped on the seeding bed are laid so that the holes 10a of the subsequent multi-film 10 are located, so that there is no hindrance to germination.

In the above embodiment, the present invention is applied to a sowing mulching apparatus. However, the sowing apparatus of the present invention can be used simply to perform seed sowing at regular intervals. In this case, by making the shutter 24 interlock with the crank of the wheel of the handcart, the timing at which the shutter 24 slides back and forth can be set to be suitable for the seeding interval according to the moving speed of the seeding device.

[Effects of the Invention] As described above, the present invention includes a partition plate forming a constant quantity chamber for seeds, so that a certain amount of seeds can be sown,
Further, since the shutter for dropping the seeds slides obliquely at an appropriate timing, the seeds are not bitten, so that the seeds can be smoothly dropped and the seeds can be prevented from being broken. Further, since the attachment means for detachably connecting the driving means and the shutter is provided, the shutter can be easily replaced.

[Brief description of the drawings]

FIG. 1 is a side view of an embodiment in which the present invention is applied to a sowing mulching apparatus, and FIGS. 2 (a) and 2 (b) are cross-sectional views of main parts showing an operation. 10 ... Multi film, 10a ... Hole, 14 ... Sensor switch, 16 ... Switch lever, 20 ... Seeding mechanism, 21 ... Tank, 23 ... Bottom, 24 ... Shutter, 27 ... Solenoid, 28 ...... Return spring.

Claims (1)

(57) [Claims] 1. A guide chute attached to a bottom surface of a tank for storing seeds for dropping seeds onto a seeding floor, and a guide hole for communicating the guide chute with the tank are formed to slide the bottom surface of the tank diagonally. A shutter to be provided, a fixed chamber formed by a partition plate provided at a lower portion in the tank and the shutter for performing the fixed supply of the seed, and a fixed chamber provided between the fixed chamber and the guide chute at an appropriate timing interval. A seeding device, comprising: a driving unit for reciprocatingly sliding the shutter; and an attachment that detachably connects the driving unit and the shutter. .