JP3227270B2 - Seedling box transport mechanism for seedling seedling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling raising apparatus for seedling using a seedling box partitioned vertically and horizontally to produce pot seedlings such as lettuce, cabbage, broccoli, and Chinese cabbage. The present invention relates to a box transport mechanism.

[0002]

2. Description of the Related Art In a conventional seeding apparatus for raising seedlings for pot seedlings, the inside of a raising seedling box is divided vertically and horizontally or a cell tray is arranged so that seeds are not moved by irrigation, soil covering, or the like. Form, put the floor soil inside the pot part, form a seeding recess in the center of the upper surface of this floor soil,
The seed is sowed in the seeding recess.

The seeding device rotates a seeding roll having a large number of recesses on its outer periphery in synchronization with the transport of a seedling box to drop seeds from a recessed portion directly below the seeding roll, or to move a seeding plate back and forth. The seeds are dropped from one row of seed holes formed therein and supplied intermittently to the seeding recesses of the seedling raising box row by row. The transport mechanism for transporting the seedling box, it is necessary to intermittently transport the seedling box in synchronization with the seeding operation of the seeding device, the machine frame equipped with the seeding device,
A guide rail for placing and guiding the seedling raising box is provided, and a movable body having a support rod arranged in the lateral direction above the seedling raising box is provided in the seeding apparatus so as to be able to reciprocate back and forth. An engaging claw that engages with the pot portion so as to be detachable and pushes the seedling raising box forward is provided so as to be vertically swingable.

[0004]

By the way, the sizes of the seedling raising boxes and the cell trays are not limited to one type, and there are some different sizes, so that the size of the pot portion and the transport pitch may be different. Therefore, if there is one engaging claw that engages with the pot portion, it can correspond to only one kind of seedling raising box.

According to the present invention, a plurality of engaging claws having different lengths are easily provided, and a movable member is provided with a posture setting member for holding the engaging claws in an engaging posture and a non-engaging posture. This provides a seedling raising box transfer mechanism of a seedling raising seeding device that can select an appropriate engagement claw when the size of the pot portion and the transfer pitch are different, and can save unused ones. The purpose is to:

[0006]

A concrete means for solving the problems in the present invention is a seedling in which a pot portion 9 is formed inside a machine frame 30 provided with a sowing device H for intermittently sowing seeds 1. A guide rail 68 for placing the box 7 thereon and guiding it into the seeding apparatus H is provided, and the movable body 17 having the support rod 62 disposed in the lateral direction above the seedling raising box 7 in the seeding apparatus H is reciprocally movable back and forth. A seeding apparatus for raising seedlings, which is provided with an engaging claw 18 which is removably engaged with the pot portion 9 of the seedling raising box 7 and pushes the seedling raising box 7 forward when it moves forward on the support rod 62. In the nursery box transport mechanism, the engaging claws 18 are provided with a plurality of support rods 62 having different lengths, and the movable body 17 is capable of engaging the engaging claws 18 with the pot portion 9. The posture setting member 69 for holding the mating posture α and the non-engagement posture β not in contact with the nursery box 7 It is provided.

[0007]

When the seeding device H is driven, the seeds 1 intermittently fall to perform the seeding action, and the movable body 1 is synchronized with the seeding action.
7 is reciprocated back and forth, and the seedling raising box 7 placed on the guide rail 68 provided on the machine frame 30 is intermittently advanced. The movable body 17 has a support rod 62 arranged in the left and right direction above the seedling raising box 7, and the support rod 62 is provided with a plurality of engaging claws 18 having different lengths so as to be swingable. An engagement claw 18 is selected that matches the spacing of one or more pot portions 9 of the seedling box 7 to be conveyed, and the selected engagement claw 18 can be engaged with the pot portion 9 via a posture setting member 69. The engaging position α is set to the engaging position α, and the unused engaging claws 18 are held in the non-engaging position β.

When the movable body 17 reciprocates back and forth, the engaging claw 18 engages with the pot portion 9 at the time of forward movement and pushes the seedling raising box 7, and at the time of reverse movement, the engagement with the pot portion 9 is released and the seedling raising Box 7
, And thereby the seedling raising box 7 is transported only by the engagement claws 18 having the engagement posture α.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 6 and 7, the overall configuration of the seeding machine A is such that a conveying device B is incorporated in a machine frame 30 and a floor soil device C, a pressure-reducing roller D, a scraper E, a floor soil brush F, and a seeding recess forming device G are provided thereon. , A seeding device H, a watering device J, a soil covering device K, and a soil covering brush L.

The seedling raising box 7 is constructed by inserting a cell tray 32 into an outer box 31. The inside is vertically and horizontally partitioned by the cell tray 32, and a number of pot portions 9 are formed in a row and column. This seedling raising box 7 is first placed on the first belt conveyor 33 of the transport device B, a required amount of floor soil is supplied through the floor soil device C, and is crushed by the pressure reduction roller D. Excess soil is removed by the scraper E that is in sliding contact with the upper surface, and then the floor soil brush F optimizes the amount of floor soil.

The seeding recess forming device G is provided with a number of projections 35 in the axial direction and the circumferential direction on the outer periphery of the molding roller 34, and the transfer speed of the seedling box 7 is controlled by the power from the first belt conveyor 33. Rotate synchronously. Due to the rotating projections 35, the seedling raising boxes 7 sent from the floor soiling device C have seeding recesses 36 of a required depth continuously formed in the center of the floor soil upper surface of each pot portion 9 one by one in a row. The outer peripheral surface of the molding roller 34 is in sliding contact with the floor soil brush F and is always cleaned.

The seedling box 7 after the formation of the seeding recesses 36 is sent to the seeding device H, intermittently fed by two pitches by the seedling box transport mechanism 15 of the seeding device H, and simultaneously sent to each seeding recess 36 of the two rows of pot portions 9. Seeded. The seedling raising box 7 after sowing is conveyed by the second belt conveyor 37 of the conveying device B, a required amount of water and chemicals are supplied by the watering device J, the soil is supplied by the soil covering device K, and the surface of the soil is covered by the soil covering brush L. Is equalized.

In the seeding apparatus H shown in FIGS.
The right and left side walls 41 of the device frame 40 are fixed to the machine frame 30, the operation box 42 and the hopper 11 are fixed on the upper part of the device frame 40, and the motor M and the fixed base 5 are provided in the middle of the left and right side walls 41. Installed. The fixed table 5 is inclined upward in the seedling box transfer direction N (forward direction), and the seeding plate 3 is arranged on the upper surface thereof so as to be able to reciprocate in the seedling box transfer direction N. This sowing plate 3 and hopper 1
A seed storage unit 4 is formed between the storage unit 1 and the storage unit 1. Seed storage unit 4
Is divided by left and right side walls 41 and front and rear partition members 12F and 12R, and the seeding plate 3 is a bottom wall,
The seeds 1 supplied from the hopper 11 are temporarily stored.

The seeds 1 are stored at least at the rear lower side in the seed storage unit 4, and the seeds 1 are stored near the front upper partition member 12F.
Need not exist. The partition member 12 can be formed of a brush or a plate material, and the front upper partition member 12F is preferably formed of a brush. By the plurality of guide wheels 43 rotatably supported by the side wall 41, the seeding plate 3 is smoothly reciprocated, regulated in the left and right positions, and prevented from being detached from the fixed base 5. A large number of seed holes 2 are formed in this sowing plate 3 in a horizontal row. The number of seed holes 2 is 7
Is set to an integral multiple of the number of the pot portions 9 in one horizontal row, for example, twice.

The range of the reciprocating movement of the seeding plate 3 is from the position where the seed hole 2 is located at the rear lower part in the seed storage unit 4 to the position where the seed hole 2 is separated from the seed storage unit 4, that is, the seed hole 2 The stroke is such that the seeds 1 of a required grain can be securely stored in the storage unit 4 and the seeds 1 can be taken out of the seed storage unit 4 to a detached position with the surplus seeds removed. Since the seed holes 2 are formed in a large number in one row, the seeds 1 can be stored in the seed storage section 4 under the same conditions and can be simultaneously separated from the seed storage section 4, so that the stroke may be short.

At the front upper portion of a fixed base 5 supporting the seeding plate 3, a seed dropping port 6 is formed outside (separation position) of the portion corresponding to the seed storage section 4, and the seed hole 2 separated from the seed storage section 4 is formed. Can be opposed. When the seed hole 2 faces the seed drop port 6, the seed 1 stored in the seed hole 2 naturally falls from the seed hole 2 through the seed drop port 6. Above the seed drop opening 6, a drop assisting means 26 is provided. This drop assisting means 26
The support rod 27 supported by the device frame 40 slightly above and above the seed drop opening 6 (upper left in FIG. 1)
The number of pressing members 28 corresponding to the all seed drop ports 6 is rotatably provided.

Each of the pushing members 28 is formed by providing a wire 28B made of metal, plastic, or the like on a mounting body 28A fitted to the support rod 27.
B is a thin one whose tip can enter the seed hole 2, and its tip is preferably rounded so as not to damage the coated seed 1. When the linear member 30 is in contact with the upper surface of the seeding plate 3 in an inclined posture due to its own weight that is going to be vertical, and when the seed hole 2 moves to a position facing the seed drop port 6, The lower end of the linear material 30 is inserted into the seed hole 2, and the seed 1 stored in the seed hole 2 is subjected to a pressing force due to the weight of the pressing member 28 from above, so that the seed 1 is coated. Even if is deformed or cracked, it can be reliably pushed out from the seed hole 2.

A large number of chutes 8 made of plastic or metal are provided below the seed drop opening 6 of the fixed base 5. Each shoot 8 is arranged in a line so that the upper part can face the seed hole 2, but the lower part is in the seedling box transport direction 2.
It is divided into rows (plural groups), and can be simultaneously opposed to each seeding recess 36 of the two rows of pot portions 9 of the seedling raising box 7 that is intermittently transported.

The center of rotation of the pressing member 28 is the seed dropper 6.
Is slightly above and just above, so that even if the seeding plate 3 reciprocates, it will not be caught in the seed hole 2. The fixed base 5
A slider 19 is disposed in the front upper extension direction.
Like the seeding plate 3, the slider 19 is formed by a plurality of upper and lower guide wheels 43 rotatably supported on a side wall 41.
Smooth reciprocation and right and left position regulation are achieved. A rack 44 is attached to the lower surface of the slider 19 and meshes with a pinion 46 provided on a rotating shaft 45.

A gear 47 and a disk 48 are attached to the output shaft of the motor M fixed to the side wall 41 and the rotation shaft 45, and are connected to each other by a crank rod 49.
The pinion 46 is reciprocated by the rotation of the motor M, thereby enabling the slider 19 to reciprocate linearly. On the upper surface of the slider 19, a pair of left and right clutch claws 20
, And connected via a link 54 to both ends of a rotating body 53 that is also supported via a shaft 52.
A solenoid 21 is also mounted on the upper surface of the slider 19, and the iron core of the solenoid 21 is connected to the rotating body 53, and when the solenoid 21 is excited, the tips of the left and right clutch claws 20 swing outward in the opposite direction ( (Moving to the solid line position in FIG. 3).

An engagement recess 55 and a guide surface 56 are formed at the tip of each of the left and right clutch claws 20. When the slider 19 advances to the seeding plate 3 side, the engagement concave portion 55
The sowing plate 3 is engaged with the pin 57 on the upper surface of the sowing plate 3, and is engaged so that the sowing plate 3 is integrally slidable with the slider 19. In this connection, the guide surface 56 is
7 to guide the engagement of the engagement recess 55. And
By demagnetizing the solenoid 21, the clutch pawl 20
The engagement concave portion 55 is pivoted in a direction to separate from the pin 57.

A tension spring 49 is provided between the seeding plate 3 and the fixed base 5 to assist the seeding plate 3 in returning. Therefore, the slider 19 mainly serves to move the seeding plate 3 forward, and when the engagement of the clutch claw 20 is released, the seeding plate 3 is held in a state where the seed hole 2 is located in the seed storage part 4. The motor M, the slider 19, the clutch pawl 20,
The seeding plate drive mechanism 16 is constituted by the solenoid 21, the tension spring 49, and the like.

A transport device B is provided outside the device frame 40.
Is provided on the machine frame 30 with two guide rails 68 via a mounting plate 67, and the seedling box 7 is transferred to the first belt conveyor 3.
3 can be transferred. The seedling box transport mechanism 15
Is driven by a motor M, and a pair of interlocking rods 61 supported on the outer surface of the side wall 41 via rollers 60 so as to be able to move back and forth, and is attached to the left and right interlocking rods 61 via thumb screws 70 so as to be adjustable in position. The front and rear mounting blocks 71 and the support rods 62 provided between the left and right mounting blocks 71 constitute a frame-shaped movable body 17. The dovetail 18 is swingably provided.

Each of the right and left engaging claws 18 is a long engaging claw 18.
A and two or three pieces having different lengths, such as a short engaging claw 18B, are formed as one set. Each of the engaging claws 18A and 18B is detachable from the pot portion 9 of the cell tray 32, and is movable. 17
Engages and pushes the seedling raising box 7 by the amount by which the movable body 17 advances. Reference numeral 69 denotes a posture setting plate provided on the mounting block 71 or the support rod 62, which receives each engagement claw 18 by abutting the lower surface thereof, and as shown in FIG. Engagement posture α that can engage with part 9
And the non-engagement posture β not in contact with the seedling raising box 7. Each of the engaging claws 18 is thus substantially 180 degrees around the support rod 62.
It can be rotated by degrees, and its posture can be appropriately selected to change what is provided for conveyance.

That is, when the pitch to be moved is not suitable because the length of the pot portion 9 of the cell tray 32 in the longitudinal direction is different, the engaging claw 18 having a suitable size can be selected and used. At this time, the front and rear positions (transport direction) of the support bar 62 and the engagement claws 18 may be adjusted via the mounting block 71. When the unused engaging claw 18 is reversed to the non-engaging posture β on the opposite side,
As shown in (5), it is possible to retreat to an upper position where it does not engage with the cell tray 32 so as not to hinder the transportation of the seedling raising box 7.

A rotating shaft 63 is supported on the device frame 40. A gear 64 provided at one end of the rotating shaft 63
And a disk 65 provided at the other end thereof is connected to an interlocking rod 61 via a crank rod 66.
Accordingly, the rotation of the motor M causes the interlocking bar 61 to linearly reciprocate back and forth, and drives all the engagement claws 18 back and forth.

The left and right engaging claws 18 are directed forward and downward.
It is detachable from the pot portions 9 on the left and right sides of the cell tray 32, and engages with the pot portions 9 when moving forward, thereby holding the seedling raising box 7 in two.
It moves forward by a stroke corresponding to the pot portion 9 in the row, and only slides on the upper surface of the cell tray 32 when moving backward, whereby the seedling box 7 is intermittently conveyed. The apparatus frame 40 and the machine frame 30 are provided with a detecting means 22. The detecting means 22 includes three sensors 23, 2
4, 25. The first sensor 23 is located closest to the carrying direction (rear part), and detects the carry-in of the seedling raising box 7 into the seeding apparatus H and activates the motor M. The second sensor 24 is in the vicinity of the chute 8 and detects the seedling raising box 7 to excite the solenoid 21 of the seeding plate drive mechanism 16.

The third sensor 25 includes first and second sensors 23 and 2
The rear nursery box 7 is located between the four and prevents rear-end collision. That is, the third sensor 25 is turned on when detecting the seedling raising box 7, and maintains the operation of the motor M even when the first sensor 23 is turned off. However, the supply of the nursery box 7 was interrupted, the first sensor 23 was turned off, and the third sensor 2 was turned off.
When 5 comes off the rear end of the seedling raising box 7 and turns off, the motor M stops.

Then, when a new seedling box 7 is carried in and the first sensor 23 is turned on, the motor M operates to drive the seedling box transport mechanism 15. At this time, even if the engaging claws 18 are in the return stroke and the nursery box 7 cannot be sent immediately, there is a gap between the front end of the new nursery box 7 and the rear end of the last nursery box 7.
A gap set by the interval between the two sensors 23 and 25 is formed, and it is avoided that the new seedling raising box 7 collides with the last seedling raising box 7.

Next, a series of operations in the seeding machine A will be described. The seedling box 7 is constructed by inserting the cell tray 32 into the outer box 31, and the seedling box 7 is placed on the first belt conveyor 33 of the transfer device B and transferred. The seedling box 7 to be transported is first supplied with a required amount of floor soil through a floor soil device C,
After the pressure is suppressed, the excess soil is removed by the scraper E which is in sliding contact with the upper surface of the cell tray 32, and the floor soil brush F optimizes the amount of the floor soil.

The seedling raising box 7 containing a predetermined amount of floor soil enters the seeding recess forming apparatus G while being sent by the first belt conveyor 33, and projects on the outer periphery of the molding roller 34 which rotates in synchronization with the transport speed. With 35, a seeding concave portion 36 having a required depth is continuously formed at the center of the floor soil of each pot portion 9.
Thereafter, the seedling raising box 7 is sent to the entrance of the seeding apparatus H by the first belt conveyor 33 and is transferred onto the guide rail 68. In the sowing apparatus H, the loading of the seedling box 7 is detected by the first sensor 23, and the motor M is operated to operate the seedling box transport mechanism 15 and the seeding plate drive mechanism 16. The seedling raising box 7 is intermittently fed by two pitches by the engaging claws 18 of the seedling raising box transport mechanism 15. This seedling raising box 7 is located at a predetermined position in the seeding device H, that is,
When reaching the seeding position, the second sensor 24 detects this,
The solenoid 21 of the seeding plate drive mechanism 16 is excited.

When using a cell tray 32 having different pot portion 9 front and rear intervals, the left and right engaging claws 18 should be selected to have a length suitable for the cell tray 32 pot portion interval. And evacuate. In the seeding plate drive mechanism 16, the slider 19 is reciprocated by the power from the motor M, and the clutch pawl 20 provided on the slider 19 is activated by the excitation of the solenoid 21, and moves to the seeding plate 3 side. Then, it engages with the pin 57 on the seeding plate 3 to move the seeding plate 3 integrally with the slider 19.

The seeding plate 3 reciprocates on the fixed base 5 and moves a large number of seed holes 2 formed in one horizontal row from the inside of the seed storage section 4 to the detached position. The seed storage unit 4 is located below the hopper 11 and stores a large amount of seeds 1. When the seed holes 2 enter the inside, seeds 1 are stored in all the seed holes 2 under substantially the same conditions. At this time, the seeding plate 3 stops momentarily because the moving direction changes. Then, when the seed hole 2 passes below the partition member 12 in order to escape from the seed storage part 4, or by the time the seeding plate 3 is inclined forward and upward,
Excess seeds 1 are removed, and seeds 1 of a required grain remain in seed hole 2.

All the seed holes 2 are simultaneously detached from the seed storage unit 4 and face the seed drop openings 6 of the fixed base 5 supporting the seeding plate 3. The seeds 1 stored in all the seed holes 2 fall from the seed holes 2 through the seed drop openings 6 and enter a large number of shoots 8. Also at this time, the seeding plate 3 stops momentarily because the moving direction changes. When the seed hole 2 faces the seed drop opening 6, the tip of the linear material 28B of the drop assisting means 26 above the seed hole 2 enters the seed hole 2 and the seed 1 that is about to be clogged in the seed hole 2. If you push it out.

Each of the shoots 8 is arranged in a row so that the upper part can face all the seed holes 2, but the lower part is divided into two rows (a plurality of groups) in the seedling box transport direction, and is inserted in one horizontal row. The seeds 1 are divided into two groups, front and rear, and are simultaneously sown in each sowing recess 36 of the two rows of pot portions 9 of the seedling box 7 that is intermittently conveyed. When the seeding plate 3 releases the seed 1, the slider 19 and the tension spring 49 move the seeding plate 3 back, and return to the seed storage unit 4 to store a new seed 1.

The seedling raising box 7 after sowing is the second belt conveyor 3
7, a required amount of water and chemicals are supplied by the watering device J, and the soil is supplied by the soil covering device K, and the soil surface is leveled. The loading of the seedling box 7 into the sowing apparatus H is performed continuously, but if the loading is interrupted for any reason, the first sensor 23 is turned off, but the third sensor 25 stops the rear end of the last seedling box 7. The motor M is driven until the detection is performed, and the motor M stops when the third sensor 25 is turned off. Then, when a new seedling box 7 is carried in after a while,
A gap defined by the interval between the two sensors 23 and 25 is formed between the front end of the new seedling box 7 and the rear end of the last seedling box 7, and the new seedling box 7 is connected to the last seedling box 7. Collisions are avoided.

The present invention is not limited to the above embodiment, but can be variously modified. For example, the chutes 8 may be arranged in one or three rows, and the transport pitch of the pot 9 by the engagement claws 18 may be set to one or three.

[0038]

According to the present invention described in detail above, the engagement claw 1
Reference numeral 8 denotes a support rod 62 provided with a plurality of members having different lengths, and a movable member 17 is provided with an engaging claw 18 capable of engaging with the pot portion 9 and a non-engaging member which does not come into contact with the seedling raising box 7. Since the posture setting member 69 for holding in the posture β is provided, when the size of the pot portion 9 and the conveyance pitch are different, the engaging claw 18 having a size suitable for the size can be selected, and the conveyance of the seedling box 7 can be performed. It is possible to properly prevent the unused engaging claws 18 from retreating so as not to hinder the conveyance.

[Brief description of the drawings]

FIG. 1 is a sectional side view of a seedling raising apparatus of the present invention.

FIG. 2 is a sectional side view of a main part of the seeding device.

FIG. 3 is a view as viewed in the direction of the arrow X in FIG. 2;

FIG. 4 is a sectional view taken along line YY of FIG. 2;

FIG. 5 is an overall sectional front view of the seeding apparatus.

FIG. 6 is an explanatory sectional view showing a series of sowing operations.

FIG. 7 is a schematic side view of the entire seeding machine.

FIG. 8 is an enlarged side view of the fall assisting means.

FIG. 9 is a side view of the movable body.

FIG. 10 is a plan view of a movable body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 seed 7 seedling raising box 9 pot part 15 seedling raising box transport mechanism 17 movable body 18 engaging claw 30 machine frame 62 support rod 68 guardrail A seeder B transporter H seeder α engaging attitude β non-engaging attitude

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01C 7/08 320 A01G 9/08 605

Claims (1)

(57) [Claims] 1. A seedling box (7) having a pot (9) formed therein is placed on a machine frame (30) provided with a sowing device (H) for intermittently sowing seeds (1). A guide rail (68) for guiding the inside of the sowing device (H) is provided, and the sowing device (H) is provided with a movable body (17) having a support rod (62) arranged in the left-right direction above the seedling raising box (7). An engaging claw that is provided so as to be able to reciprocate back and forth, and engages with the pot portion (9) of the seedling raising box (7) so as to be disengageably engaged with the support rod (62) during forward movement and pushes the seedling raising box (7) forward. A seedling box transport mechanism of a seedling seedling device provided so that (18) can swing up and down, wherein the engaging claw (18) is provided with a plurality of support bars (62) having different lengths, The movable claw (17) has an engagement claw (1
8) A posture setting member (69) for holding the engaging position (α) capable of engaging with the pot portion (9) and the non-engaging position (β) not in contact with the seedling raising box (7). A seedling box transport mechanism for a seedling seeding apparatus.