JP2520282Y2 - Seeding machine - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application In the present invention, a pot-shaped seedling box is filled with soil, and a certain amount of seed is sown in each pot, followed by covering with soil and irrigation. The present invention relates to the configuration of a seeding machine for performing a series of operations in one step.

(B) Conventional technology Conventionally, seeding machines that perform seeding and spot seeding in seedling boxes filled with soil have been known, but these are such that seedling boxes are continuously transported and the number of seeds dropped is strictly limited. The seeds were sown without seeds. Further, a precision seeding machine is also known in which each pot of a pot-shaped seedling box is sown one by one or several seeds, but these are configured to intermittently convey the seedling boxes.

(C) Problems to be solved by the device However, in the conventional seeding machine for performing sowing or spot sowing, there is no problem even if the seed drop position is slightly displaced due to the seedling box slipping on the transport roller. However, when changing to a seedling box with pots and sowing a fixed amount each, if the position of one pot shifts, the positions of the pot and seedling box after that will also shift, so the pots that are not sowed and the number of seeds Since different pots are produced, they cannot be handled in the same way as a seeding machine that performs seeding or spot seeding.

In addition, the precision seeding machine is expensive because it has a structure in which the pot position is extended and intermittently conveyed for seeding.

(D) Means for Solving the Problems The present invention has been made in view of the above points, and has the following configuration.

In claim (1), while carrying a seedling box having pots arranged in a grid pattern, the seedling box is soiled and seeded,
In the seeding machine that covers soil and irrigates in one step, the soil filling section A
Is intermittently conveyed in a state where the rear end and the front end of the seedling box 4 are in contact with each other by the conveyance roller 1 provided in the seedling box 4, and conveyors 7 and 9 having locking bodies on the chain are arranged at the seeding section B at regular intervals. It is configured such that it is opened and conveyed, and a conveyor 13 is provided in the soil cover / irrigation section C to convey again in a continuous state.

Further, in claim (2), in the seeding machine according to claim (1), the seed hole forming roller 5 is arranged on the front side of the seed feeding device 6 of the seeding section B, and the seed hole forming roller 5 is provided.
Is formed by a forming roller 5a divided into the number of pots, a communication hole 5c is opened on the side surface of the forming roller 5a, and a through rod 51 having a diameter smaller than the communication hole 5c penetrates the communication hole 5c of the forming roller 5a. However, the forming rollers 5a are connected to each other so as to slightly rotate.

(E) Embodiment of the Invention The purpose and structure of the invention are as described above, and the structure of the embodiment shown in the accompanying drawings will be described.

FIG. 1 is an overall side view of a seeding machine of the present invention, FIG. 2 is a side view of a transfer device for a seeding section, and FIG. 3 is an electric circuit diagram.

To explain from the overall configuration in FIG. 1, the seeding machine comprises a soil filling section A, a seeding section B, and a soil covering / irrigation section C, and the soil filling section A has a large number of transport rollers 1, 1 ... Is
The transport rollers 1, 1 ... are chains that are wound around the sprockets via sprockets provided on the side ends of the roller shafts.
2, 2, ..., The chain 2 is driven by a motor 3 via a sprocket, a chain 8 and the like. The seedling boxes 4, 4 ... Are placed on the transport rollers 1, 1 ... and can be transported, and the seedling boxes 4 have pots arranged in a grid pattern.

Then, the soil-filling device 11 is arranged on the center of the soil-filling section A, and the seedling box 4 is continuously placed on the transport rollers 1, 1 ... without break, and the soil drops from the seedling box and the seedling box. By not doing so, waste is eliminated, and a certain amount of soil is dropped by the soil inserting device 11 to fill the soil. A rotary brush 12 for leveling the soil on the seedling box after the soil is placed at the rear of the soil putting device 11.

The seeding section B has to be accurately conveyed in order to sow one or several seeds on each pot of the seedling box 4, so a chain type conveyor 7 for pushing and sending individual seedling boxes from the roller conveyance that causes slippage, 9 is used for transport.

That is, a roller type conveying device 17 is arranged on the extension of the conveying roller 1, a conveyor 7 is arranged on the conveying device 17, and a conveyor which conveys from the bottom in the same manner on the rear extension of the conveying device 17 as well. 9 is provided and a drive motor 10 is provided at the rear end of the conveyor 9 to drive the conveyor 7, the transfer device 17, the conveyor 9 and the seed feeding device 6. The conveyor 9
The seed hole forming roller 5 is arranged in the front part of the, and the seed feeding device 6 is arranged in the rear part thereof.

In the soil cover / irrigation section C, a roller type conveyor 13 is arranged on the rear end of the conveyor 9 and is driven by a motor 18,
A soil covering device 14 is placed on the conveyor 13, and the seedling box 4 on which seeds have been sown is covered with soil. Rotating brush on the back
A irrigation device 16 is provided which is provided with 15 to level the soil after covering and to give water to the rear part.

As shown in FIGS. 2 and 3, the transport mechanism, which is the main part of the present invention, is configured so that the transport rollers 1, 1, ... Are driven by the motor 3 via the chain 8, and the motor 3 is operated by the limit switch 20, Controlled by 21,22,23,24, the limit switches 20,21 are arranged between the conveying roller 1 and the conveying device 17 in the conveying path of the seedling box 4, and the limit switch 22 is arranged on the front end side of the conveyor 7. The limit switches 23 and 24 are provided to the transfer roller 25 located at the position of the length of the seedling box 4 from the front end of the transfer device 17.
And the transport roller 25.

The conveyor 7 has a drive sprocket 26 and a driven sprocket.
A chain 28 is wound between 27, and locking bodies 29, 29, which are L-shaped plates in a side view, are arranged on the chain 28 at a constant interval slightly longer than the length of the seedling box 4, and driven. A gear 30 is fixed on the drive shaft on which the sprocket 26 is fixed,
The sprocket on the intermediate shaft meshes with the gear 31 on the intermediate shaft.
Power is transmitted from the sprocket on the driven shaft 34 via the chain 33 from the 32.

Sprocket 35, 36 is fixedly mounted on the driven wheel 34,
The sprocket 35 has a chain 39 wound around the sprocket 37 on the drive shaft at the rear end of the conveyor 9, and the sprocket 36 has a chain 40 wound around the sprocket on the roller shaft of the transport roller 25 at the rear end. , The rotation of the transport rollers 25, 25, ... via the chains 41, 41 to the sprockets of the other transport rollers 25, 25, and the conveyor 7, the transport device 17, and the conveyor 9 are constantly driven by the power of the drive motor 10. It has been done.

However, the transport roller 1 is
It is adapted to be driven intermittently by 20, 21, 22, 23, 24 so as to match the rotation of the locking body 29.

That is, as shown in FIG. 3 and FIG. 4, the limit switch 20 is normally closed until the seedling box 4 reaches the limit switch 20, so the motor 3 is activated and the transport roller 1 is continuously driven. Boxes 4, 4 ... are also transported continuously.

Then, as shown in FIG. 5, when the seedling box 4 reaches the limit switch 20, the limit switch 20 is turned off and the transport roller 1 is stopped. On the other hand, since the conveyor 7 is always driven, when the locking body 29 on the conveyor 7 reaches the limit switch 22 and the limit switch 22 is turned on and closed, the motor 3 is driven again and the seedling box 4 is also conveyed.

The locking body 29 immediately passes over the limit switch 22 and opens the limit switch 22, but by driving the transport roller 1, the seedling box 4 reaches the limit switch 21 as shown in FIG. 21 is closed and the limit switch 23 is normally closed, so the transport roller 1 continues.
Is driven.

When further conveyed and the tip of the seedling box 4 reaches the limit switch 23 as shown in FIG. 7, the limit switch 23 is opened (the limit switch 20 is turned on and opened, the limit switch 21 is turned on and closed). , Limit switch 22 is open when OFF)
The transport roller 1 is stopped.

Therefore, the transportation of the succeeding seedling boxes 4b, 4c ... Is stopped, but since the leading seedling box 4a is in the state of being transported onto the transport device 17, the transport device 17 is constantly driven. The seedling box 4a is transported as it is, and the leading seedling box 4a and the next seedling box are transferred.
There is a gap between it and 4b.

Then, the locking body 29 enters between the seedling boxes 4a 4b and pushes the seedling box 4a to reliably convey the seedlings box 4a, and the locking body 29 turns on the limit switch 22 and the transport roller 1 again. Drive the seedling boxes 4b, 4c ...

Further transfer, as shown in FIG. 9, limit switches 20, 21,
The transport roller 1 is stopped when 23 is turned on and the limit switch 22 is turned off, but since the limit switch 24 arranged after the limit switch 23 is turned on, the transport roller 1 is continuously driven without stopping. The intermittent drive is performed so as to leave a gap only when the transfer roller 1 transfers the transfer roller 1 to the conveyor 7.

Then, the seedling box 4 is inherited from the conveyor 7 to the conveyor 9, and the above operation is repeated to switch the transportation of the seedling boxes 4 abutting against each other to the reliable transportation with a gap.

Then, after seeds are sown on the conveyor 9, it is inherited from the conveyor 9 to the conveyor 13. However, since the seedling box 4 and the front and rear of the seedling box 4 are continuously conveyed on the conveyor 13, the conveying speed of the conveyor 9 The transport speed of the conveyor 13 is slightly slowed down so that the rear seedling box can catch up with the front seedling box.

As shown in FIG. 10, the seed hole forming roller 5 on the conveyor 9 is supported on a machine base 45 that supports the conveyor 9 by a supporting rod 4
6, 46 are erected, pivot supports 47, 47 are pivotally supported at the upper ends of the support rods 46, 46, and support stays 48, 48 are pivotally supported at the lower portions thereof, and pivot supports 47, 47 are provided.
And the supporting stays 48, 48 with screw rods 49, 49 interposed therebetween, and by rotating the handles 49a, 49a provided at one end of the screw rods 49, 49, the height of the tips of the supporting stays 48, 48 is increased. The height can be adjusted.

A support shaft 50 is mounted on the ends of the support stays 48, 48, and the seed hole forming roller 5 is rotatably inserted into the support shaft 50. The seed hole forming roller 5 comprises the same number of forming rollers 5a, 5a ... As the number of rows (rows) of pots of the seedling box 4,
As shown in FIGS. 11 and 12, the convex portion 5 having substantially the same shape as the pot
b, 5b ... are projected radially, forming rollers 5a, 5a ... Two communicating holes 5c, 5c are opened at a constant distance from the center of the side surface,
The through rods 51, 51 having a smaller diameter than the communication holes 5c, 5c penetrate the forming rollers 5a, 5a ... And lock the ends with pins, so that the assembled seed hole forming roller 5 forms the forming rollers 5a, 5a. ... Each of them is made rotatable by the difference in diameter between the communication hole 5c and the through rod 51 to cause backlash.

Therefore, when the seedling box 4 is conveyed to the seed hole forming roller 5, the convex portions 5b, 5b ... Are fitted in the pot to form a seed hole, but at this time, even if a small stone or the like is bitten, the small rotation occurs. The position of the whole seedling box is not displaced by absorbing it, and it is possible to reduce damage to the seed hole forming roller 5 and the seedling box 4 and to prevent defective fitting.

(F) Effects of the Invention With the above configuration, the present invention has the following effects.

Since it is configured as in claim (1), seedling boxes are continuously conveyed in the soil filling section and the soil covering / irrigation section, and the soil is prevented from dropping between the seedling boxes and the work is efficiently performed. In the seeding section, the seedling box can be transported with a gap provided between the seedling boxes, and the conveyor with the locking body enables reliable transport without slippage and improved seeding accuracy. Of.

Since the seed hole forming roller can be easily fitted and fitted even if there is an error in the seedling box or the seedling box is distorted, even if stones or the like adhere to the pot. It was possible to reduce the possibility that the seed hole forming roller and the seedling box were damaged, because the convex portion did not run away and bite.

[Brief description of drawings]

FIG. 1 is an overall side view of the seeding machine of the present invention, FIG. 2 is a side view of a transfer device for a seeding section, and FIG. 3 is an intermittent drive electric circuit diagram.
4 to 9 are drawings showing a state of transporting the seedling box, FIG. 10 is a perspective view of the seed hole forming roller, FIG. 11 is the same front view partial sectional view, and FIG. 12 is the same side sectional view. is there. A: soil filling section B: seeding section C: soil cover / irrigation section 1 ... transport roller 4 ... seedling box 5 ... seed hole forming roller 5a ... forming roller 5c ... communicating hole 6 ... seed feeding Equipment 7,9,13 …… Conveyor 51 …… Through rod

Claims (2)

(57) [Scope of utility model registration request] 1. A seeding machine for carrying out soiling, sowing, and soil covering / irrigation in one step while transporting a seedling box having pots arranged in a grid pattern, which is provided in the soiling section A. The seedling box 4 is intermittently conveyed in a state where the rear end and the front end of the seedling box 4 are in contact with each other by the conveying roller 1 and the seeding section B is provided with conveyors 7 and 9 each having a locking body on the chain and is conveyed at a constant interval. Then, the seeding machine is characterized in that a conveyor 13 is provided at the soil cover / irrigation section C and the conveyor 13 is configured to convey again. 2. The seeding machine according to claim 1, wherein a seed hole forming roller 5 is arranged on the pre-process side of the seed feeding device 6 in the seeding section B, and the seed hole forming roller 5 is used for the number of pots. The forming roller 5a is composed of divided forming rollers 5a.
A communication hole 5c is opened on the side surface of the through hole, a through rod 51 having a diameter smaller than the communication hole 5c is passed through the communication hole 5c of the forming roller 5a, and the forming rollers 5a are connected to each other so as to rotate slightly. Seeding machine to do.