JPH05308818A - Sowing apparatus - Google Patents

Abstract

PURPOSE:To carry out the sowing to pots having various sizes. CONSTITUTION:A transfer apparatus 77 for transferring a seedling box having a number of pots 2 arranged in lateral and longitudinal directions is placed on a transfer bed 5. A bed soil supplying apparatus 8 is placed at the starting end of the transfer bed 5 and a seed-supplying apparatus 22 is placed in front of the bed soil supplying apparatus 8. The seed supplying apparatus 22 is composed of a horizontal bottom plate 28 having a discharging port 29, a shutter 30 having a seedling-fitting hole 31 and relatively sliding on the upper surface of the bottom plate 28 and a sowing part 23 moving along a circular orbit and having a hopper 26 placed on the shutter 30. The transfer bed 5 under the seed-supplying apparatus 22 is provided, in place of the transfer apparatus 22, with a transfer mechanism 65 having a sowing transfer piece 66 synchronously reciprocating under the sowing part 23 and a feeding transfer piece reciprocating in a state opposite to the reciprocation phase of the sowing transfer piece 66. A stop switch 76 to stop the transfer apparatus 77 and the bed soil supplying apparatus 8 is placed at a prescribed position where the feeding transfer piece 67 engages with the pot 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seeding device.

[0002]

2. Description of the Related Art In the publicly known Japanese Patent Laid-Open No. 3-35708, a shutter having a horizontal plate-like bottom plate having a discharge port and a seed fitting hole for sliding on the upper surface of the bottom plate is provided above a horizontal transfer device. And a seeding section comprising a hopper provided on the shutter is provided, the seeding section is circularly moved with respect to the transfer device, and the seedling mat is sown in synchronization with the seeding part, wherein the transfer device is It describes a configuration in which a transfer protrusion is provided on a chain that moves in synchronization with the seeding part.

[0003]

In the above-mentioned known example, since the seedling raising box is transferred by the transfer projection provided on the chain that moves in synchronization with the seeding section, the seedling raising box having different front and rear lengths, the spacing and the size. There is a problem that seeds cannot be sown on a pot sheet or the like having pots of different sizes.

[0004]

OBJECT OF THE INVENTION The present invention is to enable seeding in any seedling box.

[0005]

Therefore, according to the present invention, a bed soil supplying device 8 is provided at the beginning end of a transfer table 5 provided with a transfer device 77 for transferring a seedling box having a large number of pots 2 vertically and horizontally. On the front side of the soil supply device 8, a horizontal plate-shaped bottom plate 28 having a discharge port 29, a shutter 30 having a seed fitting hole 31 that relatively slides on the upper surface of the bottom plate 28, and a hopper 26 provided on the shutter 30. A seed supply device 22 including a sowing section 23 that moves more circularly is provided, and the transfer table 5 below the seed supply apparatus 22 is reciprocally moved in synchronization with the lower part of the sowing section 23 instead of the transfer device 77. A transfer mechanism 65 including a seeding transfer piece 66 and a feed transfer piece 67 that reciprocates opposite to the seeding transfer piece 66 is provided, and the feed transfer piece 67 is located at a predetermined position where the feed transfer piece 67 engages with the pot 2. Is the transfer device 77 and the soil supply device The is obtained by a stop switch 76 for stopping provided seeding device.

[0006]

EXAMPLE One example of the present invention will be described with reference to the drawing. In FIG. 4, reference numeral 1 is a plug pot seedling raising mat for raising plug pot seedlings such as vegetables and flowers such as eggplant, tomato and lettuce, A large number of pots 2 are formed side by side on a square thick plate made of a material such as styrofoam at predetermined intervals in front, back, left and right. The pot 2 has a small-diameter through hole 3 formed in the lower portion thereof, and has a larger diameter toward the upper side, and has a conical cross section. The plug pot seedlings are cultivated by supplying the bed soil 4 to the pots 2 of the seedling raising mat 1 and sowing seeds to cover the soil and watering the seedlings. Those skilled in the art call it a plug pot seedling because it is entangled in an inverted conical shape.

Reference numeral 5 is a transfer device for transferring the seedling raising mat 1 for plug pots in a substantially horizontal direction. At the starting end of the transfer table 5, the seedling raising mat 1 at the bottom of the seedling raising mats 1 vertically polymerized is transferred. An automatic feeder 6 for supplying one by one is provided, and a floor soil feeder 8 having a soil feeding belt 7 and the like is provided in front of the automatic feeder 6. Reference numeral 9 denotes a scraper provided on the front side of the floor soil supplying device 8. The flat plate member 10 made of an elastic member such as metal, rubber or synthetic resin is bent in a triangular shape when viewed from above, and the left and right sides of the flat plate member 10 are attached. Member 1
It is mounted on the upper surface of the transfer table 5 through the height adjustable via 1. The seedling raising mat 1 is provided on the lower edge of the flat plate member 10.
The cutouts 12 are formed at the same intervals as the left and right intervals of the pot 2 and substantially the same width as the left and right of the pot 2, and the scraping parts 13 are formed between the cutouts 12. The scraper 9 leaves the floor soil 4 above the pots 2 by the notch 12 among the floor soil 4 supplied onto the seedling raising mat 1, and the upper surface 14 of the seedling raising mat 1 between the pots 2 and 2 is cut. The bed soil 4 is removed by the scraping part 13.

Reference numeral 15 is a pressure-reducing roller that is constantly urged downward by a spring (not shown) provided on the front side of the scraper 9, and 16 is a leveling brush provided on the front side of the pressure-reducing roller 15, which is a flat brush. It is expected that the front side in the transfer direction is low and the rear side is inclined high, and the tip is positioned slightly lower than the upper surface of the pot 2 to push the soil into the pot 2. A pair of front and rear rotary leveling brushes 17 are provided on the front side of the leveling brush 16. Following the rotating and leveling brush 17, a seed supply device 22 is provided for sowing seeds 20 such as lettuce, which are substantially spherical by coating, one by one.
Reference numeral 23 denotes a seeding section of the seed supply device 22, and the transfer table 5
It is attached to a frame 24 fixed to the upper position of the above so as to be able to move circularly via a pair of front and rear cranks 25, 25. A hopper 26 is detachably fixed to the upper part of the seeding section 23, and both ends of a plurality of left and right leveling brushes 27 are fixed in the hopper 26 at predetermined intervals in the front and back.
A bottom plate 28 is positioned below the base plate with a predetermined gap, and the bottom plate 28 is fixed to the seeding section 23. Vertical discharge ports 29 are formed in the bottom plate 28 below the leveling brush 27 at predetermined intervals in the front-rear direction.

In the gap between the bottom plate 28 and the leveling brush 27, a downwardly U-shaped shutter 30 is movably positioned only in the front-rear direction. That is, the bottom plate 2 is attached to the seeding section 23.
8 is fixed, the shutter 30 is placed on the bottom plate 28, and then the hopper 2 with the leveling brush 27 is placed on the shutter 30.
Position 6 and fix. A seed fitting hole 31 corresponding to the discharge port 29 is formed in the shutter 30,
The seed fitting hole 31 and the discharge port 29 are made to communicate with each other by the relative movement of the bottom plate 28 and the bottom plate 28, and the seed 20 is dropped. Reference numeral 32 denotes a seed guiding groove formed on the upper surface of the shutter 30, and the seed fitting hole 31 is formed at the groove bottom of the seed guiding groove 32.
The width of the seed guiding groove 32 is at least the same as that of the seed 20,
Even if the depth of the seed guiding groove 32 is deep, the seed guiding groove 32 is formed to be the same as the seed 20 so that the seeds 20 can be fitted in a line. The lower end of the leveling brush 27 faces the seed guiding groove 32.

A pair of front and rear engaging legs 34, 35 projecting downward are formed on the left and right sides of the shutter 30.
Reference numerals 4 and 35 removably engage with a front-rear moving shaft 36 for moving the shutter 30 back and forth from above. Moving axis 3
6 is pivotally supported by a front plate 37 and a rear plate 38 of the seeding section 23 so as to be movable back and forth, and a washer 39 is attached to a front end portion of a moving shaft 36 projecting forward from the front plate 37, and the washer 39 and the front plate 37 are attached. A spring 40 is provided between and. A stopper 41 is provided at a predetermined position of the moving shaft 36 inside the front plate 37, and the moving shaft 36 between the engaging leg 34 and the engaging leg 35 of the shutter 30 is provided.
The washer 42 is fixed to the washer 42 and the engaging leg 35.
A spring 43 is provided between them. The engagement leg 35 and the rear plate 38
A washer 44 is fixed to the moving shaft 36 between the and.

A left and right engaging shaft 47 is fixed to the rear end portion of the moving shaft 36, and both ends of the engaging shaft 47 are inserted into elongated holes 48 formed in the frame 24. An engaging member 49 that engages and disengages with the engaging shaft 47 at a predetermined position is provided near the engaging shaft 47. The rear end of the engaging member 49 is fixed to the rotating frame 50, and the rotating frame 50 is a horizontal shaft 51 axially attached to the frame 24.
Only the rotation can be freely stopped.

The movement of the seeding section 23 (hopper 26 and bottom plate 28) side and the shutter 30 will be described. The rotation of the front and rear cranks 25 causes the whole seeding section 23 to move in a circle (counterclockwise rotation in the figure), and the moving shaft 36 moves. When the engagement member 49 engages with the engagement shaft 47 at the rear end, the movement shaft 36 becomes positionally immovable with respect to the seeding section 23 (the engagement shaft 47 is engaged with the engagement member 4).
When 9 is not engaged, the movement of the moving shaft 36 due to the action of the spring 40.
Moves with the seeding section 23). As a result, the seeding section 23
When the seeds start descending from the uppermost position (12 o'clock of the clock) (FIG. 11), the seeding section 23 and the hopper 26 are rearward of the moving shaft 36 and the shutter 30 (movement is blocked by the washer 44). To the seed fitting hole 3 (Fig. 13).
1. The leveling brush 27 moves and retracts from above 1 and the seed fitting hole 3
The seed fits into the position 1 and moves forward from the lateral position (9 o'clock on the clock), and the discharge port 29 coincides with the seed fitting hole 31 to drop the seed. In addition, after the seed is dropped, the seed fitting hole 3
In order to position 1 under the leveling brush 27, a regulating member 52 is provided on the rear plate 38 of the seeding section 23.

An upper end of a hose 55 is detachably connected to a lower portion of each of the outlets 29, and a lower end of the hose 55 is connected to the seeding section 2.
3 is connected to the drop port 57 of the seeding plate portion 56 provided in the lower part. The drop openings 57 are formed at the same intervals as the pots 2 of the seedling raising mat 1. On the rear side of the seeding plate portion 56, a pressing plate portion 59 having a group of pressing protrusions 58 is integrally formed. The pressing protrusion 58 is a recess 60 on the upper surface of the soil 4 of the pot 2.
Seeds are formed in the recess 60.

Therefore, a transfer mechanism 65 for seeding is provided on the transfer table 5 below the frame 24. Transfer mechanism 6
Reference numeral 5 includes a seeding transfer piece 66 for transferring the seedling-growing mat 1 in synchronism with the moving speed of the seeding section 23, and a feed transfer piece 67 for transferring the seedling-raising mat 1 to the seeding transfer piece 66. The transfer pieces 66, 67 are rotatably mounted on the shafts 68, 69 so that the shaft cylinder 70 of the base can be adjusted to the left and right, and the tips of the transfer pieces 66, 67 are positioned downward by their own weight. 1 goes under the transfer pieces 66, 67, and the tips of the transfer pieces 66, 67 are in the pot 2.
It is transferred by engaging the inner wall of the. A projecting piece 85 is fixed to the tips of the transfer pieces 66 and 67, and a through hole 86 is formed in the projecting piece 85. The pot 2 is formed by the step difference between the transfer pieces 66, 67 and the protruding piece 85.
It surely engages with the inner wall of the above, and escapes the floor soil 4 from the through hole 86 to prevent clogging.

The shafts 68 and 69 are respectively engaged with the guide holes 71 in the front-rear direction formed in the frame 24, and the rear ends of the rods 72 and 73 are axially attached to the portions projecting from the guide holes 71, respectively. The front end of the rod 72 is pivotally attached to the seeding rotary disc 74. The radius of the sowing rotary disc 74 is the same as the length of the crank 25, and the moving speed of the sowing transfer piece 66 and the moving speed of the sowing section 23 are matched. The front end of the rod 73 is pivotally attached to the feed rotary disc 75,
By changing the length of the rod 73 and the mounting portion of the feeding rotary disk 75, the feeding speed of the seedling raising mat 1 by the feeding transfer piece 67 is adjusted. A mounting hole 97 for the rod 73 is formed in the feed rotary disc 75 in advance,
Install selectively.

That is, since several kinds of seedling-growing mats 1 having different pot intervals are commercially available, the seeding transfer piece 66 and the feed transfer piece 67 are reciprocally moved in opposite directions. At the point, the feeding transfer piece 67 is taken over by the seeding transfer piece 66, and the moving speed of the feeding transfer piece 67 until this takeover is changed.

In FIG. 25, S is the feed start point of the feed transfer piece 67, T is the feed transfer piece 67 and the seeding transfer piece 6.
6 is a transfer point where the tip end coincides with 6, and G is a seeding point at which the seeding transfer piece 66 advances the seedling mat 1 to sow.
Then, the number of sowing times by the sowing section 23 is arbitrarily set with respect to the total number of pots 2 of the seedling raising mat 1 and divided by the set number of sowings to obtain the number of pots 2 to be sowed at one time. The interval from the first pot 2 to the last pot 2 and the seeding interval C are matched.

For example, in the case of the above-mentioned seedling-growing mat 1 having the crank 25 having a length of 40 mm, the number of which is 20, and the intervals of which are 25 mm, when sowing 4 pots 2, the number of seeding is 5 times. Since the sowing interval C is 100 mm and the synchronous sowing interval A is 40 mm, the feeding interval B is 60 mm, and when the seedling raising mat 1 has 18 pots 2 having an interval of 25 mm, 3 pots 2 are provided. The number of seeding was 6 and the seeding interval C was 7
Since it is 5 mm and the synchronous sowing interval A is 40 mm, the feed interval B is 35 mm.

The seeding plate portion 56 and the pressing plate portion 5 are
9 are prepared by exchanging several types of drop ports 57 and pressing protrusions 58 having different numbers and intervals (for example, when 20 pots 20 are used, four dropping ports 57 and pressing protrusions 58 are seeded). Using the plate portion 56 and the pressing plate portion 59, 1
When there are eight, the seeding plate portion 56 and the pressing plate portion 59 of the three drop openings 57 and the pressing protrusions 58 are used. )

A set of seeding transfer piece 66 and feed transfer piece 67 is also provided on the front side of the seeding section 23. Reference numeral 83 is a rod for connecting the front and rear seeding transfer pieces 66, and 84 is a rod for connecting the front and rear transfer pieces 67.
61 is a motor, 62 is a gear, 63 is a shaft, 64 is a gear, 7
6 is a stop switch for stopping the transfer roller 77 on the starting end side of the transfer table 5, the automatic supply device 6, and the soil supply device 8, and 78 is a start switch for activating them.
79 is a shaft, 80 is a gear, 81 is a shaft, 82 is a chain, 87
Is a supporting device provided below the seed feeding device 22, and a free roller 88 is provided below the pressing protrusion 58 to securely support the seedling raising mat 1 to be pressed, and the front side of the free roller 88 is supported. A pipe 89 is provided to prevent the seedling raising mat 1 transferred by the seeding transfer piece 66 and the feed transfer piece 67 from advancing due to inertia. The seeding transfer piece 66 and the feed transfer piece 67 are moved faster than the transfer roller 77, and a predetermined interval is provided between the feed start point S of the feed transfer piece 67 and the transfer roller 77. There is.

Thus, the shutter 30 has the moving shaft 36.
Since the opening and closing are performed only when the engaging member 49 is engaged with the engaging shaft 47, the rear end of the supporting arm 90 is fixed to the horizontal shaft 51 to which the engaging member 49 is attached, and the front end of the supporting arm 90 is fixed. A sensing roller 91 is provided. When the sensing roller 91 comes into contact with the upper surface of the side edge of the seedling-growing mat 1, the engaging shaft 47 of the moving shaft 36 engages with the engaging member 49 (clutched). When the seedling-growing mat 1 is not present, the sensing roller 91 is a sensing roller. 91 is lowered and the support arm 90 is not rotated, and the engagement member 49 is retracted to a position where the engagement shaft 47 is not engaged (clutch disengagement), so that the relative movement of the shutter 30 and the bottom plate 28 is not performed. , Not sown. A manual switching device 92 is provided at a desired position of the support arm 90 so that the support arm 90 can be manually moved up and down to manually engage and disengage the clutch. Reference numeral 93 is a cover soil supplying device, 94 is a brush, 95 is an irrigation device, and 96 is an extracting device. The transfer table 5 on the rear side of the seed supply device 22
A transfer roll 77 is provided in the.

[0022]

[Operation] Next, the operation will be described. When the seedling-growing mat 1 is supplied to the transfer table 5, the soil is supplied by the bed soil supply device 8 to reach below the scraper 9, and the scraper 9 is one of the floor soils 4 supplied on the seedling-growing mat 1. The floor soil 4 is left above the pot 2 by the notch portion 12, and the floor soil 4 on the upper surface 14 of the seedling-growing mat 1 between the pots 2 is removed by the scraping portion 13. Therefore, the compression roller 15
Put the soil 4 above the pot 2 on the seedling mat 1
Since it can be compressed as much as possible to the upper surface position, the soil floor 4 in the pot 2 is reliably suppressed. The seedling-growing mat 1 that has passed below the compression roller 15 can be pressed into the pot 2 by the elastic leveling brush 16 into the pot soil 2 on the upper surface 14 of the seedling-growing mat 1 between the pots 2. Excessive soil is removed by the rotating and leveling brush 17, and the supply of the floor soil 4 is completed.

When the tip of the seedling-growing mat 1 comes into contact with the stop switch 76, the rotation of the transfer roller 77 is stopped, and the seedling-growing mat 1 is at this point (feed start point S).
Wait at. On the other hand, the rod 73, which is moved backward by the rotation of the feeding rotary disc 75, moves the feeding transfer piece 67 backward, and the feeding transfer piece 67 is on standby.
It engages with the inner wall of the first pot 2 at the feed start point S to start the forward movement (when the tip of the seedling-growing mat 1 comes into contact with the start switch 78, the transfer roller 77 is rotated again). When the feeding transfer piece 67 starts to move forward,
The sowing transfer piece 66 starts to move backward, and the sowing transfer piece 66
And the tip of the feeding transfer piece 67 are coincident at the transfer point T,
The sowing transfer piece 66 continues to advance the seedling raising mat 1 from the takeover point T. Since the crank 25 for moving the seeding unit 23 and the diameter of the seeding rotary disc 74 of the seeding transfer piece 66 are the same, the transfer speed of the seeding transfer piece 66 and the transfer speed of the seeding section 23 are the same. The upper surface of the pot 4 of each pot 2 of the seedling-growing mat 1 is pressed by the pressing protrusions 58 of the pressing plate portion 59 that gradually descends due to the circular movement.

On the other hand, the seed feeding device 22 includes the crank 2
Since the sowing section 23 repeatedly moves through the seeds 5 and 25, the seed 20 is moved while moving while keeping the dropping port 57 formed in the sowing plate section 56 at the lowermost end of the sowing section 23 in line with the pot 2.
Can be seeded by dropping. That is, the front and rear cranks 2
By the rotation of 5, the whole seeding section 23 moves circularly (counterclockwise in the figure), and when the engaging member 49 engages with the engaging shaft 47 at the rear end of the moving shaft 36, the moving shaft 36 moves relative to the seeding section 23. When the seeding section 23 starts descending from the uppermost position (12:00 of the clock) (FIG. 11), the seeding section 23 is fixed.
The hopper 26 has a moving shaft 36 and a shutter 30 (washer 4
(Movement is blocked by 4) in the rear arrow direction (FIG. 13), and the leveling brush 27 moves and retreats from above the seed fitting hole 31 to the seed fitting hole 31. Seeds fit.

Next, the sowing section 23 is placed in the horizontal position (9 of the clock).
16), the direction of movement is in the direction opposite to the arrow A, which is the frontward movement. Therefore, the discharge port 29 coincides with the seed fitting hole 31 to drop the seeds, and the seeds are passed one by one through the hose 55 to the sowing plate. It falls into the pot 2 through the drop opening 57 of the portion 56. In this case, since the pressing plate portion 59 having the pressing protrusions 58 is provided on the rear side of the seeding plate portion 56, the concave portion 60 is formed in the upper part of the soil 4 of the pot 2 and the seed is seeded in the concave portion 60. When the seeds fall, the seeding plate portion 56 is as close as possible to the upper surface of the pot 2, so that the seeding effect is prevented by preventing the seeds from scattering and improving the seeding accuracy. The moving axis 3
The relationship between 6 and the seeding section 23 will be described. In FIG. 11, since the moving shaft 36 is about to move in the direction opposite to the arrow A due to the elasticity of the spring 40, the engaging shaft 47 of the moving shaft 36 engages with the engaging member 49. It fits. The shutter 30 has a spring 43.
Although it is urged in the direction indicated by arrow A, it does not move because the regulating member 52 is in contact therewith. In FIG. 12, the seeding section 2
3 moves a little in the direction of arrow a, but the moving shaft 36 does not move and the spring 40 extends a little. In FIG. 13, since the seeding section 23 further moves in the direction of arrow A, the position of the shutter 30 in contact with the washer 44 does not change, but the hopper 26 moves together with the seeding section 23, so that the hopper does not move relative to the shutter 30. 26 moves in the direction of arrow a to move the seed fitting hole 3
When the seed 20 is fitted into the inside of 1 and the stopper 41 of the moving shaft 36 comes into contact with the front plate 37, the elasticity of the spring 40 does not urge the sowing section 23 in the direction of arrow a, and the sowing section 23 is provided by 40 and 41. The moving shaft 36 moves together with the seeding section 23, and the engaging shaft 47 at the rear end of the moving shaft 36 is engaged with the engaging member 49.
It is located further back (Fig. 14). At this time, the engagement shaft 47
When the engaging member 49 is removed further, the seeding section 23 and the moving shaft 36 both move circularly.

When the engaging member 49 is engaged with the engaging shaft 47, only the seeding portion 23 moves in the direction opposite to the arrow while contracting the spring 40 as shown in FIG. 15, and eventually, as shown in FIG. The outlet 29 of the bottom plate 28 is aligned with the seed fitting hole 31,
The seed 20 falls into the hose 55 through the discharge port 29. Further, when the seeding section 23 moves in the direction opposite to the arrow A, the engagement leg 35 of the shutter 30 is disengaged from the washer 44.
5, so that the seeding part 23 can be used until it returns to FIG.
And the shutter 30 move together.

As described above, in the case of the seedling raising mat 1 having four drop openings 57 formed in the seeding plate portion 56 of the seeding portion 23 and having 20 pots 2, one seedling raising operation is repeated 5 times. The whole mat 1 can be sown, but when the seedling-growing mat 1 is not transferred for some reason, the sensing roller 91 descends to the front end of the support arm 90 of the engaging member 49, and the engaging member 49 Is retracted to a position where the engaging shaft 47 of the moving shaft 36 is not engaged, so that the relative movement of the shutter 30 and the bottom plate 28 is not performed and seeding is not performed. It is also possible to forcibly rotate the support arm 90 by the manual switching device 92 and lower the sensing roller 91.

However, the seed 20 is obtained by coating vegetable seeds such as lettuce, and not only the size of the seed itself is different even in the same variety, but the size of the seed 20 also depends on the thickness of the coating. Is different. Therefore,
When sowing Chinese cabbage seeds after sowing the lettuce, the hopper 26 is removed from the sowing section 23, and the shutter 30 on the bottom plate 28 is removed.
And replace it with a shutter 30 having a seed fitting hole 31 that matches the size of another seed 20.

Similarly, since the seedling raising mat 1 is commercially available in several types having different pot intervals, the seeding transfer piece 66 and the feed transfer piece 67 are reciprocally moved in opposite directions. At a certain point, the feeding transfer piece 67 is taken over by the seeding transfer piece 66, and the moving speed of the feeding transfer piece 67 until this takeover is changed. That is, the seeding section 23 moves in a circle without stopping, sowing is performed by the descending stroke and the ascending stroke from the rear to the front, and the returning stroke is performed until reaching the initial seeding start position. Transfer point 66 by transfer piece T
The seedling mat 1 is transferred from the feeding start point S to the takeover point T by the feeding transfer piece 67 during the return stroke of the seeding section 23 by synchronizing the speed of transfer from the seedling section G to the sowing point G. is doing. Therefore, the sowing transfer piece 6
6 and the transfer piece 67 for feeding, the interval between the pots 2 to be seeded at once by both (for example, 4 out of 20 pots 2
This means that the seedling raising mat 1 is moved only by the number of the above). Among these, the movement of the seeding section 23 requires that the crank 25 and the rotary disc 74 for seeding have the same diameter so as to be completely matched. After transferring the seedling raising mat 1 at the transfer point T, the transfer piece 67 may reach the transfer point T at the same time as the returning sowing transfer piece 66. When the moving amount and moving speed of the feeding transfer piece 67 are changed, The seedling raising mats 1 having different pot intervals and numbers can also be sowed.

For example, in FIG. 25, the number of sowing times by the sowing section 23 is arbitrarily set with respect to the total number of pots 2 of the seedling raising mat 1, and the pot 2 is sowed once to divide by the set number of sowing times. Find the number, then the first pot 2
It is sufficient to match the interval from the end to the last pot 2 with the seeding interval C. The length of the crank 25 is 40 mm,
In the case of the above seedling raising mat 1 having pots 2 each having an interval of 25 mm, when attempting to sow four pots 2, the number of sowing times is 5, the sowing interval C is 100 mm, and the synchronous sowing interval A is 40 mm. Therefore, when the seedling-growing mat 1 has 18 pots with a feed interval B of 60 mm and an interval of 25 mm, the seedling number is 6 when the seedlings are seeded in 3 pots 2. Since the interval C is 75 mm and the synchronous sowing interval A is 40 mm, the feed interval B is 35 mm.

When the intervals are different even with the same number of two pots, it is possible to deal with them only by changing the feeding interval B without changing the synchronous plating interval A. For example, crank 25
With a length of 40 mm and 20 pots with a spacing of 25 mm
In the case of the above seedling raising mat 1 having 4 seeds, when trying to sow into 4 pots 2, the number of sowing times is 5, and the sowing interval C is
Is 100 mm, and the synchronous sowing interval A is 40 mm, so the feed interval B is 60 mm, but with 20 pieces, the interval is 3
In the case of the seedling raising mat 1 having 0 mm pots 2, when trying to sow four pots 2, the number of sowing does not change at 5 times, but the sowing interval C is 120 mm, and the synchronous sowing interval A is 40 mm. Therefore, the feed interval B may be set to 80 mm, and the position of the transfer point T does not change. Therefore, the feed start point S is moved to the rear side by 20 mm. At this time, the stop switch 76 and the start switch 78 are also changed corresponding to the change of the feed start point S.

In the above description, the length of the synchronous sowing interval A is not changed, but this is a principle, and the length of the synchronous sowing interval A matches the length of the crank 25 in the first place. It is set by the moving arc locus of the pressing protrusion 58 of the pressing plate portion 59, and may be changed depending on the size of the opening of the pot 2, the pressing depth, and the like. In this case, in the case of the seedling raising mat 1 having the pots 2 having the length of the crank 25 of 40 mm, the number of which is 20, and the interval of which is 25 mm, when seeding 4 pots 2, the number of seeding is 5, Since the sowing interval C is 100 mm and the synchronous sowing interval A is 40 mm, the feeding interval B is 60 mm, but there is no change in the sowing interval C, which is the interval between the pots 2 for sowing at one time, and the length of the crank 25 is the same. When only the value is changed to 50 mm, the seeding interval C is 100 mm and the synchronous sowing interval A is 50 mm, so the feed interval B is only 50 mm.

In the above case, the transfer roller 77 is the seeding section 23.
Since the seedling-growing mat 1 is being transferred at a speed unrelated to the above, it is temporarily stopped by the stop switch 76, but since the position to be stopped by the stop switch 76 is the feed start point S, the feed transfer piece 67 is always the head. It engages with the pot 2 and the tips of the feeding transfer piece 67 and the seeding transfer piece 66 coincide with each other at the take-over point T, and they can be transferred in synchronization with the seeding section 23.

In addition, a pot sheet which is made of a paper material or the like and used for raising seedlings for rice transplanters, or a seedling sheet for vegetables having the same shape as the pot sheet but having a different size, can be transferred by the transfer table 5. Any seeds can be seeded, and the seeding device of the present invention is capable of spot seeding one to several grains at desired positions.

[0035]

According to the present invention, the bed soil supply device 8 is provided at the beginning end of the transfer table 5 provided with the transfer device 77 for transferring a seedling box having a large number of pots 2 vertically and horizontally, and in front of the bed soil supply device 8. A horizontal plate-shaped bottom plate 28 having a discharge port 29, a shutter 30 having a seed fitting hole 31 that relatively slides on the upper surface of the bottom plate 28, and a hopper 26 provided on the shutter 30. The seed feeding device 22 is provided, and the transfer table 5 below the seed feeding device 22 is replaced with the transfer device 77, and a sowing transfer piece 66 that reciprocally moves below the sowing section 23 in a synchronized manner. A transfer mechanism 65 composed of a feed transfer piece 67 that reciprocates opposite to the seeding transfer piece 66 is provided, and the transfer device 77 and the bed soil are provided at a predetermined position where the feed transfer piece 67 engages with the pot 2. Stop switch 7 for stopping the supply device 8 Therefore, even if the transfer device 77 transfers the seedling-growing mat 1 at a speed unrelated to the seeding section 23, the stop switch 76 causes the feed start point S of the feed transfer piece 67 to start. Since it is temporarily stopped at, the feed transfer piece 67 is always engaged with the first pot 2,
At the take-over point T, the tips of the feeding transfer piece 67 and the seeding transfer piece 66 are aligned with each other, and there is an effect that they can be transferred in synchronization with the seeding section 23 and reliable seeding can be performed.

[Brief description of drawings]

FIG. 1 is a side view.

FIG. 2 is a perspective view of a soil supply unit.

FIG. 3 is a front view of the scraper.

FIG. 4 is a perspective view of a soil supply state.

FIG. 5 is a side view.

FIG. 6 is a side view.

FIG. 7 is a side view.

FIG. 8 is a schematic perspective view.

FIG. 9 is a perspective view of a hopper, a brush, and a shutter.

FIG. 10 is a cross-sectional view of a seeding part.

FIG. 11 is a state diagram of the same operation.

FIG. 12 is a state diagram of the same operation.

FIG. 13 is a state diagram of the same operation.

FIG. 14 is a state diagram of the same operation.

FIG. 15 is a state diagram of the same operation.

FIG. 16 is a state diagram of the same operation.

FIG. 17 is a state diagram of the same operation.

FIG. 18 is a state diagram of the same operation.

FIG. 19 is a state diagram of the same operation.

FIG. 20 is a plan view of the inside of the hopper.

FIG. 21 is a sectional view.

FIG. 22 is a perspective view of a transfer piece.

FIG. 23 is a side view of the same.

FIG. 24 is a side view of the transfer mechanism.

FIG. 25 is an explanatory diagram thereof.

[Explanation of symbols]

1 ... Plug pot seedling raising mat, 2 ... Pot, 3 ... Through hole, 4 ... Floor soil, 5 ... Transfer device, 6 ... Automatic supply device, 7 ...
Soil feeding belt, 8 ... Floor soil supplying device, 9 ... Scraper, 1
0 ... Flat plate member, 11 ... Mounting member, 12 ... Notch part, 13 ...
Scratching part, 15 ... Squeezing roller, 16 ... Leveling brush, 17 ...
Rotating leveling brush, 20 ... Seed, 22 ... Seed supply device, 2
3 ... Seeding part, 24 ... Frame, 25 ... Crank, 26 ...
Hopper, 27 ... Leveling brush, 28 ... Bottom plate, 29 ... Discharge port, 30 ... Shutter, 31 ... Seed fitting hole, 32 ... Seed guide groove, 34, 35 ... Engaging leg, 36 ... Moving shaft, 37 ... Front plate , 38 ... rear plate, 39 ... washer, 40 ... spring, 41 ...
Stopper, 42 ... Washer, 43 ... Spring, 44 ... Washer, 47 ... Engaging shaft, 48 ... Long hole, 49 ... Engaging member, 50
... Rotating frame, 51 ... Horizontal axis, 52 ... Restricting member, 55 ... Hose, 56 ... Seeding plate part, 57 ... Drop opening, 58 ... Pressing protrusion,
59 ... Pressing plate portion, 60 ... Recessed portion, 61 ... Motor, 62 ... Gear, 63 ... Shaft, 64 ... Gear, 65 ... Transfer mechanism, 66 ... Seeding transfer piece, 67 ... Feeding transfer piece, 68, 69 ... Shaft , 7
0 ... Shaft cylinder, 71 ... Guide hole, 72, 73 ... Rod, 74
... Rotating disk for sowing, 75 ... Rotating disk for feeding, 76 ... Stop switch, 77 ... Transfer roll, 78 ... Start switch, 7
9 ... Shaft, 80 ... Gear, 81 ... Shaft, 82 ... Chain, 83,
84 ... Rod, 85 ... Projection piece, 86 ... Through hole, 87 ... Support device, 88 ... Free roller, 89 ... 90 ... Support arm, 9
1 ... Sensing roller, 92 ... Manual switching device, 93 ... Soil supply device, 94 ... Brush, 95 ... Irrigation device, 96 ... Extraction device, 97 ... Mounting hole.

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[Procedure amendment]

[Submission date] June 3, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

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[Figure 3]

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

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[Figure 4]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

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[Figure 5]

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

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[Figure 6]

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

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[Figure 7]

[Procedure Amendment 6]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 22

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FIG. 22

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 23

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FIG. 23

[Procedure Amendment 8]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 24

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FIG. 24

[Procedure Amendment 9]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 25

[Correction method] Change

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FIG. 25

Claims (1)

[Claims] 1. A bed soil supply device 8 is provided at a starting end of a transfer table 5 provided with a transfer device 77 for transferring a seedling box having a large number of pots 2 vertically and horizontally, and a discharge port is provided in front of the bed soil supply device 8. 29
Seed comprising a horizontal plate-shaped bottom plate 28 having a shutter, a shutter 30 having a seed fitting hole 31 that relatively slides on the upper surface of the bottom plate 28, a hopper 26 provided on the shutter 30, and a sowing section 23 that moves circularly. A feeding device 22 is provided, and on the transfer table 5 below the seed feeding device 22, a sowing transfer piece 66 that synchronously reciprocates below the sowing section 23 in place of the transfer device 77, and the sowing A transfer mechanism 65 including a feed transfer piece 67 that reciprocates in the opposite direction to the transfer piece 66 is provided, and the transfer device 77 and the bed soil supply device 8 are provided at a predetermined position where the feed transfer piece 67 engages with the pot 2. A seeding device provided with a stop switch 76 for stopping.