JPS6140709A - Rotary mesh seeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a second-rotation dish seeding machine. Conventionally, with this type of seeding machine, there are cases where dirt gets into the gap between the perforated plate plate that rotates at an angle and the bottom plate of the secondary feeding box.
When the small seeds are bitten.

There was a problem in that the rotation of the perforated plate was not carried out smoothly and the accuracy of the W1 type was reduced. In addition, recently, seeds are coated with a disinfectant for disease control and sown, but even in this case, the disinfectant powder gets into the underside of the perforated plate, causing
This sometimes interfered with the smooth rotation of the perforated plate.

The present invention has been made in order to solve the above-mentioned difficulties, and provides a perforated plate type seeding machine characterized by providing a shutter that can be opened and closed on the back side of the seed extraction hole of a rotating perforated plate plate. .

That is, the present invention provides a shutter that can be opened and closed integrally with the perforated plate on the back side of the seed extraction hole of the perforated plate, so that it is in sliding contact with the perforated plate that makes up the bottom of the seed extraction hole and rotates nine times. This eliminates the need for the inclined bottom plate of the feeding box, and eliminates the sliding contact area with the perforated plate, which solves the drawbacks of conventional machines.

The present invention will be described in detail with reference to the drawings. Fig. 1 shows a conventional rotary perforated plate seeding machine, in which a perforated plate plate (2) is slightly spaced above the inclined bottom plate of one seed dispensing box (2) and is rotated by a drive shaft (2). is provided, and this perforated plate ■ has holes for pumping out seeds.
・ are drilled appropriately.

Seeds are dropped and supplied from the upper hopper ■ to the bottom of the seed dispensing box ■, but while the perforated plate ■ rotates and passes through this group of seeds, the perforated plate ■1 is drilled. Seed extraction hole■
■Seeds fall and enter.

When the perforated plate ■ rotates further and comes out above the second seed group, only the seeds that have firmly entered the first seed extraction hole ■ are drawn up because the perforated plate ■ is slanted.

Others fall back into the seed cluster. In this way, seeds can be pumped out relatively accurately, but a small gap inevitably occurs between the rotating perforated plate ■ and the slanted bottom plate of the fixed seed dispensing box ■. Therefore, if there is dirt among the nine seeds, or if one of the seeds is small, it will easily get into these small gaps and get chewed up, making it impossible to work the perforated plate smoothly.

Therefore, the present invention has developed seed extraction holes drilled in the rotating plate plate■.
At the same time as blocking the bottom of this seed extraction hole ■ on the back side of
It is characterized by the provision of a shutter (2) that allows the bottom to be opened as necessary.

To explain this using the embodiment shown in Figures 2 to 4, the second rotation plate ■ is detachably bolted to the rotation plate ■ fixed to the drive shaft ■, and rotates together with the first rotation plate ■. It is free. The rotary plate (2) is provided with a notch (2) facing the seed extraction hole (2) of the rotating plate (2), and a shutter (2) is provided close to the notch (2). This shutter ■ is supported by one end of an arm O which is pivotally attached to a fulcrum ■ protruding from the back side of the rotary plate ■, and is a seed extraction hole in a perforated plate ■ located in the center of the notch ■. It is pressed against (2) so that it can be opened and closed by the elasticity of spring (2). Although the purpose of this embodiment is to facilitate the replacement of the perforated plate (2), it is of course possible to provide the shutter (2) directly on the bottom surface of the perforated plate (2) for the purpose of the present invention. A cam roller O is provided at the other end of the arm 0, and this cam roller O rotates a perforated plate ■ to open a seed extraction hole ■.
When the seeds are pumped out and reach the upper part, it engages with the cam guide 0 provided on the side of the feeding box ■, opens the bottom of the 9 seed extraction holes ■ against the force of the spring ◎, and pumps out the seeds. Drop the seeds into the sowing guide ■. Then, if cam roller 0 passes over cam guide 0, arm O
returns to its original state by the force of the spring (■) and closes the bottom of the one-seed extraction hole (■). As described above, according to the present invention, a shutter that can be opened and closed is provided on the back side of the perforated plate.

It can completely prevent small seeds, dirt, powder, etc. from getting stuck between the perforated plate and the bottom plate of the feeding box, which has been a problem with this type of perforated seeding machine in the past, and the perforated plate can rotate smoothly. It has the practical benefit of allowing accurate sowing.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of the main parts of a conventional perforated seed seeding machine, and FIGS. 2 to 4 show an embodiment of the present invention. 2 is a longitudinal sectional side view of the main part, FIG. 3 is a plan view of the perforated plate plate seen from above in the direction of the drive shaft, and FIG. 4 is a side view showing the opening/closing structure of the shutter and ivy. The symbols in the figure are explained as follows.

Claims (1)

[Claims] A rotary perforated plate is rotatably pressed into contact with the opening at the lower end of the seed dispensing box, and a shutter that rotates together with the rotary perforated plate is opened and closed in a seed extraction hole drilled in the rotary perforated plate. A rotary perforated seeding machine characterized by freely press-fitting.