JPS59192007A - Seeder for seedling - 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 sowing machine for raising seedlings that can reliably sow a predetermined amount of seeds only on the bed.

For example, a seeding machine installed in a seedling seeding device receives seeds sent out from a feeding roll at the bottom of a seed hopper with a seeding roll that has a large number of feeding grooves on the outer periphery. The container is configured to sow the stored seeds onto the floor inside the seedling nursery box.

In this conventional seeding machine, the driving source for the seeding roll is shared with the drive source for transporting the seedling boxes, and the seeding roll, which is also continuously rotated, is driven from above the seedling boxes that are continuously sent by the seedling box transport mechanism. Since the seeds fall from the seedling box, the seeds may fall between the seedling boxes, or may be sown against the wall instead of being sown in the correct position inside the seedling box. This may result in p-deficient plants with crowded seedlings.

In addition, the amount of seeds to be sown in seedling boxes is regulated to be approximately 82 rows for adult seedlings, approximately 40 rows for intermediate seedlings, and approximately 56 rows for young seedlings, but with conventional seeding machines, it is difficult to change the speed. , it was necessary to prepare one set for each seeding rate.

The present invention solves the problems of the conventional device, allows seeds to be sown correctly in the proper position in the seedling nursery box, and is suitable for use in growing seedlings.
The purpose of the present invention is to provide a seedling seeding machine that can be easily changed for various uses and for seedlings and for seedlings.

The features of the present invention for achieving this purpose include a seedling box transfer mechanism that transports the seedling box at a constant speed, and a seedling box transport mechanism that has a plurality of seed feeding grooves on the outer periphery so that the seedling box can be moved inside the seedling box while rotating. a seeding roll that sows seeds at regular intervals on the soil bed; a detection mechanism that detects the tip of the seedling box being transferred below the seeding roll; It has a drive mechanism that transmits power to the seeding roll, and the drive mechanism rotates only while the seedling box moves from the sowing start position to the sowing end position under the sowing dream tree by the power from the drive source. At the same time, there is a timing part that cuts off power transmission from the drive source to the seeding roll after one stroke, and this timing part allows time-limited power from the driving source to be transmitted to the seeding roll, and the rotational speed of this seeding roll can be changed. The present invention is characterized in that it has a transmission section.

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

In Figure 1, the seedling seeding sowing machine (1) is placed on a support frame (4) that supports the transfer mechanism (3) of the seedling nursery box (2), and is also placed on the support frame (4). It constitutes a series of sowing equipment for raising seedlings, along with a soil-covering soil supplier (not shown), a watering machine, a soil leveling machine, etc.

The seedling box transfer mechanism (3) can be switched between forward and reverse directions to move back and forth while placing the seedling box (2) thereon.
), a motor part α3 fixed to the support leg υ of It consists of a roller α4, a sprocket part and a chain 00 that transmit power from the motor part o3 to the entire rotating shaft α.

These sprocket Q5, chain 00, etc. are housed in a groove in one of the frames having a U-shaped cross section. A chain transmission means [
Power can be transmitted via 181.

The transfer mechanism (3) is a roller conveyor type in order to perform normal forward and reverse rotation, and is configured to drive all rollers, but it is configured to drive only one roller by wrapping a belt around it. It may be configured.

On the west side of Figures 1 to 5, the sowing machine (1) has a frame α
An outer frame □□□ fixed to B, an inner frame downwardly disposed within this outer frame so as to be movable up and down, and an inner frame that is disposed on the outer frame and supports the seed hopper (support) and the feeding roll. The upper frame ■ supported by the inner frame @, the sowing roll (3+1, rotating brush C12 and surplus paddy discharge body
z, surplus paddy discharge body t! :31 and a drive mechanism for driving the feed roll □□□. The outer frame is made up of two side plates, and the front, rear, top and bottom are open.

The sowing machine (1) is activated when the seedling box (2) is transferred in the direction of the arrow (B). Therefore, the seedling box (2) is transferred in the direction of the arrow (A) when supplying soil and watering. , so raise the inner frame upwards and use the seeding roll.
l, Rotating brush! 3z and surplus paddy discharge body 1 are evacuated upward. The swinging fulcrum of the inner frame mouth is a support shaft L3θ supported by the outer frame (2).

As shown in FIG. 2, the seeding roll el11 has a large number of feeding grooves formed at equal intervals on its outer periphery, and together with the temporary guide placement, seeds (C ) while storing the seeds in the feeding groove.

Inside the seeding roll 1, plungers are provided so as to be slidable in the radial direction, corresponding to the respective feeding grooves, and the seeds are prevented from falling to the lowest position by an arc-shaped regulating plate. (C) is pushed out as it naturally falls at the lowest position and sown in the seedling raising box (2).

Incidentally, in the present invention, the seeding roll cover 1 is a plunger (
It may also have a simple concave feeding groove without a hook.

The drive mechanism □□□ includes a synchronous drive mechanism (84a) that synchronously rotates various rolls in the seeding machine (1), and a synchronous drive mechanism that links the power of the drive source [phase] with the transfer of the seedling box (2). Timing drive mechanism (84b') that transmits to (84a)
).

In the synchronous drive mechanism (84a) shown in FIG. 2 and FIG.
3z and surplus paddy discharge body (sprocket at one end of each shaft of 131 (right side in Figure 8)) e71 t381 [391
(40) are provided, and these have chains Ql+
is wound around the chain, and tension is applied to the chain circle by the tension sprocket f42. The seeding roll 1 is then driven by the driving force from the sprocket f371.
311, the rotating brush device and the surplus paddy discharge system 1 are driven synchronously.

・A gear circle is provided at the end of the support shaft protruding to the outside of the outer frame ■ (left side in Figure 8), and a gear ring is provided on the rotating shaft (43) provided on the outer surface of the outer frame @. (40
It meshes with. A chain (5θ) is wound between the rotating shaft (431 is provided with a sprocket ridge, and the sprocket is provided between the shafts of the feed roll (2)) 954+.

The chain (5 hills are bracketed on the top of the outer frame)
Pulley on the spindle diagram fixedly supported via 4571 @
(or a sprocket is also fine),
Tension is applied by a tension lever provided on the spindle side.

The upper frame 31 can be freely rotated around the support shaft 3, and can be rotated clockwise in FIG. 2 to take out the seeds in the seed hopper α and repair and inspect the interior of the lower frame 31.

Timing drive mechanism (84b) shown in Figures 3 to 5
, it has a timing section (71) and a transmission section V disposed outside the outer claim (to), and its drive source VQ.
is the motor placed inside *r of the outer frame.
The detection mechanism provided on the outer frame mother and frame a sword (
It operates with the cooperation of 73).

In the detection mechanism 3), the detection switch H that activates the drive source is located on the outer frame 128 (or the frame Gυ may also be used).
The operating piece is rotated by an operating lever ffE9 to turn on and off the switch (74).

The operating lever blade is fixed to the end of a shaft fη which is supported by the frame αB so as to be rotatable about nine horizontal axes, and this shaft ff71
A contact piece that can come into contact with the seedling growing box (2) being transferred is provided in the middle of the container.

The shaft V η is located approximately directly below the seeding roll (li) 9, and the tip (2a) of the seedling raising box (2) is located at the seeding roll Iv (b).
When the contact piece (C) is moved to the lower part of the contact piece (C), the contact piece (C) comes into contact with the tip (2a) of the contact piece (C), as shown in FIG.
, the shaft (77) and the operating lever (a) are rotated together,
Allowing the downward rotation of the actuating piece that is pressed downward,
Turn the detection switch from the OFF state to the ON state and send an activation signal to the drive source (7o).

The timing section (71) is rotatably provided on a binion □＠υ fixed to the motor shaft (8 (1)) and a support shaft supported by the outer frame ■.
1), and a switch (exposed) operated by a contact piece (84) provided on the timing gear plate.
A switch that moves up and down (this is the exposed operating piece).

The timing drive mechanism (a4b) is stopped by one revolution of the timing gear (83), which is used to stop the operation of the switch (the drive source is o).

The speed change Faν4 is a first gear (
88), and a second gear provided on the rotating shaft example Vf rotatably supported by the outer frame ■ and engaged with the first gear ■.
Force can be transmitted from the motor shaft to the rotating shaft @9) via the chain transmission means υ1).

The chain transmission means (91) includes a tension sprocket (93) and a tension sprocket (93) fixed to a sprocket (9) fixed to the motor @4η and a rotating shaft (9),
All sprockets) (92) [93] The tension sprocket (94) is supported by a bracket 1J6)K fixed to the outer frame so that its position can be adjusted slightly, and the chain is wrapped around the chain. The tension of (95) can be adjusted.

One set of gears (88) +90) of the transmission unit Vuku is provided with a plurality of gears with different numbers of teeth and can be replaced.By replacing the gears, the power of the rotating shaft (89) can be changed to the rotation speed. The change is transmitted to the support shaft (c), and the synchronous drive mechanism (
The power of the driving source (0) can be transmitted to g4a).

- is the outer cover of the timing drive mechanism (a4b), (98
) respectively indicate switch boxes for operating the drive mechanism C34).

In particular, the sowing operation in the sowing machine (1) of the present invention will be explained. In Figures 1 to 6, the sowing roll c3]
The gear (ss) (qo )
The ratio of the number of teeth is 1:1, which is 9, and the seeding row/I/c
The circumference of lυ is approximately one-fourth of the inner length of the seedling box (2) (L), and when the reed and pinion (81) rotate four times, the timing gear (83) rotates once, and the gear (&8 ) (9
I and the sowing roll C+'JJ rotate four times, so the blade of the sowing roll is set for sowing 62 rows of seeds (C) and for growing seedlings.

The seedling box transfer machine (3) fails to operate via the motor part c[3'fc, and when the seedling box (2) after feeding is placed on the floor (b) and transferred in the direction of arrow (B), its tip When (2a) reaches almost directly below the seeding row/I/C 31), the contact piece (c) is rotated by the seedling raising box (2), and the detection switch 9 is activated.

The drive source (701) is activated by the operation of the Raichiu 4), which rotates the timing gear (goods), and also drives the sowing roll 01 via the chain transmission means (91), transmission section (74, chain (41), etc.) , the feed roll, the rotation plan (2), the surplus paddy discharge body C13, etc. are driven synchronously.

The sowing roll GD rotates and the sowing start position @ where the seeds (q fall) from the feeding groove (6f, i) is a point that is a distance M (j?) backward from the tip (2a) of the seedling raising box (2). , for example, the position of the detection switch Q (to) is set so that the point K is 1/64th of the length L).

When the timing gear (83) rotates once and the contact piece (threshold) returns to its original position, i.e., the switch (851t) - actuation position (C), the actuation trap of the switch ((to)) causes the drive source (
The operation of 70) is stopped and the power transmission to N@low/L/c31) is stopped, and in the meantime, the sowing roll Cl1)
rotates 4 times and places 62 rows of seeds 0 on the bed soil 0 at regular intervals (
Sow every 2 hours. The interval (21) is 62 with a length of L)
It is 1/1. The sowing end position (β) is a point located a distance (1) forward from the rear end (2b) of the seedling nursery box (2), that is,
length L) minus distance C1) in front.

Even after sowing, the seedling nursery box (2) continues to be transported and supplied to a soil covering machine, etc. In the sowing machine (1), the contact piece (c) returns to its original state as shown by the imaginary line in Figure 4, and then It is prepared for the detection of the seedling raising box (2) being transferred to.

Next, when performing seeding for intermediate retention, gear of transmission section V2 (
) Replace the tooth ratio of the gear (90) with a gear with a ratio of 5:4, and rotate the bath surface low/L/3' 5 times while the timing gear (83) makes one revolution. 40 on the floor □□□
Sow rows. Myelination interval (2f)-id length opening)
1/40 of the position @) (β) is the seedling box (
2) is located inwardly away from the leading end (2a) and trailing end (2b).

Similarly, when sowing seeds for young seedlings, the timing gear (83) is rotated once by replacing the gear (88) on the transmission part with a gear with a ratio of the number of teeth on the gear side f near to 4. In between, the seeding row 1VGD was rotated 7 times to sow 56 rows.

Note that the present invention is not limited to the above-mentioned embodiments, and the ratio of the number of teeth between the pinion (81) and the timing gear (&l), the number of contact pieces N, the circumferential length of the seeding roll c3, and The number of feed grooves (60, etc.) can be selected as appropriate, and the number of rows for adult seedlings, clasps, and young seedlings is not strict;
There is a permissible range in Article 6.

In addition, as the drive source σ3, the drive source σ3 is independent of the motor unit σ3.
Although a motor is used, the power of the motor may be transmitted to the drive mechanism diagram via an electromagnetic clutch. In that case, switch 9+) (85) is used to activate and stop the electromagnetic clutch. The transfer mechanism (3) is disconnected from the operation of the transfer mechanism (3) and the drive mechanism (to) is stopped.

Although a limit switch is used for the switch C1, other contact switches or non-contact switches may be used.

According to the non-invention detailed above, sowing row /l/61:
Since the drive source 4 that transmits power to the drive mechanism (to) of the seedling box (2) can be operated and stopped independently of the seedling box transfer mechanism (3), the seedling box (2) whose tip (2a) is detected by the detection mechanism (2)
), seedlings can be sown from the accurate sowing start position @), and the timing section (7υ) allows seedlings to be raised and placed in the box (2).
Since the sowing row A/C 3]) is set to rotate only while the sowing row A/C3) is moving below the sowing roll 6η from the sowing start position ■ to the sowing end position φ), the sowing end position ψ) must also be set accurately. This prevents seeds from being sown on the top edge (2a) and rear end (2b) of the seedling box (2), thus ensuring dense seedlings and missing plants. It is possible to prevent the sowing low tva within the time set by the timing part 1) by providing a transmission part vz't-.
Since the rotation speed of 1) can be changed, one seed sowing machine (11) can sow seeds for adult seedlings, for holding seedlings, for young seedlings, etc.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an overall front view, FIG. 2 is a sectional front view, FIG. 6 is a sectional side view, and FIG. 4 is a front view showing a timing drive mechanism. FIG. 5 is a cross-sectional view taken along the line V-Y in FIG. 4, and FIG. 6 is a cross-sectional view of the seedling box showing the sowing position. (1)... Seeding machine for seedling raising, (2 tons... seedling raising box, (3)
... Seedling box transfer mechanism, ■... Feeding roll, Ov...
・Seeding roll, (to)... Drive mechanism, (84&)...
・Synchronous drive mechanism, (84b)...timing drive mechanism, (6(f)...feeding groove, decoy...drive source, ffl
+...Timing part, 4...Transmission part, (73)...
・Detection mechanism, @)...Seeding start position, (β)...Seeding end position. Patent applicant: Daiwa Seiko Co., Ltd.

Claims (1)

[Claims] 1. A seedling box transport mechanism (3) that transports the seedling box (2) at a constant speed, and a bed soil (D) in the seedling box (2) that rotates while having a plurality of seed feeding grooves on the outer periphery. A seedling roll (311) that sows seeds (0) at regular intervals on top, and a seedling raising box (2) that is transported below this sowing roll (3I).
and a drive mechanism 1 that transmits the power from the drive source ff01 to the seeding roll (311) by the operation of this detection mechanism (2). The timing section CII rotates only while moving from the sowing end position φ) to the sowing end position φ), and cuts off the power transmission from the drive source 17 (1) to the sowing row # (311) after the rotation.
J and a transmission section (which transmits the time-limited power from the drive source side to the seeding roll 111 by this timing section (company) and can change the rotational speed of this seeding roll 111).
2) A seedling-raising seeding machine characterized by having the following.