JP2803978B2 - Transplant machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter for successively transplanting soiled seedlings into ridges while running.

[0002]

2. Description of the Related Art An upland transplanter for transplanting soild seedlings (potted seedlings) such as vegetables has a large number of seedling receiving trays arranged endlessly as disclosed in Japanese Patent Application Laid-Open No. 4-293407. Then, the seedlings are intermittently transferred one pitch at a time, and the seedlings are placed on the respective seedling receiving trays, and the seedlings are transferred from the seedling receiving tray to the planting device at required positions and planted one by one. It is configured as follows.

[0003]

Since all of the seedlings grown in the seedling box are not always growing well, they must be inspected for quality before passing them to the planting device. Therefore, in the prior art, an optical sensor is arranged one pitch before the planting device to detect defective seedlings. Depending on the orientation, the degree of growth, etc., it may not be possible to detect the seedlings, and the tray for receiving seedlings may become an obstacle and difficult to detect.

Therefore, a detector such as a limit switch is provided.
Can be placed in contact with foliage and detected
Will interfere with the tray where the detector moves.
The intermittent movement is hindered, and
It is simply difficult to detect. Further, in the above-mentioned prior art, a normally soild seedling is transferred from a seedling receiving tray to a transplanting device at a required position.
Handed over, the defective seedlings fall after passing through the transplanter
However, the defective seedlings are dropped on the ridges, and may fall on the transplanted seedlings or damage the multi-film.

A first object of the present invention is to lower
Seedling detection center that detects the foliage of soiled seedlings on the seedling receiving tray
The foliage can be lifted by the
Reliable detection and detection without interference with seedling receiving tray
It is an object of the present invention to provide a transplanter capable of operating. Ma
Further, a second object of the present invention is to provide a foliage on each seedling receiving tray.
Contact member that changes from the non-detection position to the detection position.
Keeping the seedlings down
A seedling detection sensor that detects the foliage of
The foliage can be lifted by the
More reliable detection and no interference with the seedling receiving tray
And the detection operation can be performed with a small elevation of the seedling detection sensor.
An object of the present invention is to provide a transplanting machine.

[0006] A third object of the present invention, keep in place the guide member in the downstream side of the planting device, and to allow the proposal receiving with poor soil seedling dropping into the groove side of the furrow Transplant
To provide a machine.

[0007]

Means for Solving the Problems The object of the present invention is to solve the problems.
The first specific means for the operation is to use a large number of seedling receiving trays 71.
Are arranged endlessly and intermittently moved one pitch at a time.
Then, the seedlings B with soil are placed on the respective seedling receiving trays 71, and the seedling receiving trays 71 are received.
The quality of the seedling B on the tray 71
2 and the normal soild seedling B is placed at the required position in the seedling receiving tray 7.
In transplanter pass from one to the planting device 21, the non
The good seedling detection mechanism 102 moves down to the upper side of the planting device 21.
The foliage a of the seeded seedling B on the seedling receiving tray 71
The seedling detection sensor 104 for detecting
Hold the pan 104 in synchronization with the intermittent movement of the seedling receiving tray 71.
That is, it has the raising means 105.

[0008] A second tool for solving the problem in the present invention.
The physical means is to make a large number of seedling receiving trays 71 endless.
Place it and move it intermittently one pitch at a time.
The seedlings B with soil are placed on the tray 71 and are placed on the tray 71.
The quality of the seedling B is detected by the defective seedling detection mechanism 102,
The soiled seedling B is transferred from the seedling receiving tray 71 to the planting device 2 at a required position.
1, the defective seedling detection mechanism 10
2 is when the seedlings B with soil are placed on the respective seedling receiving trays 71.
The fist is changed from the non-detection posture to the detection posture.
The contact member 106 is provided, and the contact member 106 is moved downward to the upper side of the planting device 21.
By doing so, it comes into contact with the contact member 106 in the detected posture and
Seedling detection sensor that detects that it is in the detection position
104, and the seedling detection sensor 104 is
Actuating means 105 for lifting in synchronization with the intermittent movement of b71
It is to have.

A third tool for solving the problem in the present invention
The physical means include the first or second specific means,
Defective seedling which drops attached seedling B after passing through planting device 21
The defective seedling elimination mechanism 10 includes an elimination mechanism 103.
3 receives the defective soil seedling B falling on the lower side of the planting device 21 or is discharged to the opposite side to the planting device 21 via the kicking means 128 at a position facing the planting device 21. receiving with poor soil seedling B, and that it has a guide member 117 for guiding the groove C between ridges a.

[0010]

The seedling box 51 in which the seedlings B have been raised is loaded from the insertion opening 49 of the seedling box guiding means 45, and is intermittently fed from the upper side to the lower side by one pitch via the seedling box vertical feeding mechanism 39. During intermittent feeding, one row of soiled seedlings B are pushed out onto the seedling receiving tray 71 of the seedling lateral feeding mechanism 41 by the seedling pushing mechanism 40, and the seedlings B are fed by the seedling horizontal feeding mechanism 41 one pitch at a time. and feeding, the planting device 21 provided at its discharge end
It is supplied and is thereby planted in the ridges 3.

When the seedling receiving tray 71 on which the seedlings B are placed reaches one pitch short of the upper side of the planting apparatus 21, the seedling detecting sensor 104 moves downward from above, and the seedlings on the seedling receiving tray 71 move downward. The presence of the foliage a of the seedling B is detected, and if it is a normal soild seedling B, the seedling receiving tray 71 is inclined and supplied to the planting tube 33 when the planting device 21 is reached, and the foliage a is present. If not, the defective seedling removing mechanism 103 is operated to prevent the seedling receiving tray 71 from tilting, and the defective seedling (defective soild seedling B) is dropped after passing through the planting cylinder 33.

The seedling detection sensor 104 can operate under its own weight or
Descends via the actuating means 105 and
Lifted and moved up and down intermittently by the seedling receiving tray 71
And the seedling detection sensor 104 is connected to the seedling receiving tray 7.
Does not interfere with 1. Each seedling receiving tray 71 has a contact member.
106 is pivoted about a horizontal axis, and this contact member 106
When placing seedlings B on the receiving tray 71,
Thus, the posture is changed from the non-detection posture to the detection posture. Moving seedling
The detection sensor 104 does not directly contact the foliage a,
The presence of the foliage a is detected via the contact member 106.

[0013] The drop is Ru defective seedlings is guided in a groove C of between ridges A is received in the guide member 117 which is disposed below, is released onto the multi-film D in the groove C, the multi-film D It will be a hold on.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. 4 to 9, the transplanter 1 is a walking type having a steering handle 2 at the rear of a traveling vehicle body 3, and runs in the longitudinal direction across a ridge A covered with a multi-film D. . The traveling vehicle body 3 has an engine 5 mounted on a mount 4 at the front thereof, and is covered with a bonnet 7 having left and right spare seedling box mounts 6 on the left and right, and a transmission case 8 is fixed to the rear of the mount 4. The unit and the output unit of the engine 5 are linked by a winding transmission 9.

The power from inside the transmission case 8 is supplied to a wheel transmission shaft 10 and a PTO shaft 12 for driving a working unit 11.
The left and right ends of the wheel transmission shaft 10 support left and right drive wheels 14 via a transmission case 13 that swings up and down around the axis. The drive wheel 14 can be driven by the body. The drive wheel 14 rolls in the groove C between the ridges A.

The left and right transmission cases 13 can be adjusted up and down around the axis of the transmission shaft 10 to adjust the relative vertical position between the drive wheel 14 and the traveling vehicle body 3. Is provided with a grounding sensor 15 via a stay, and is provided with a cylinder 16 which is operated by a detection signal of the grounding sensor 15.
Is moved up and down to adjust the height of the traveling vehicle body 3 and perform horizontal control.

The main frame 17 of the traveling vehicle body 3 is formed of a square pipe or the like into a substantially L-shape in plan view and side view, and its front portion is bent downward, and is provided on one side of the gantry 4 on which the engine 5 is mounted. The vehicle body 3 is fixed
The left and right sides of the steering handle 2 are disposed substantially horizontally in the front-rear direction, and the rear portion is bent to the other side.
It has been. The middle portion of the main frame 17 is located only on one side of the traveling vehicle body 3, thereby forming a space 19 between the engine 5 and the mounting portion 18.

The transplanting work unit 11 has a seedling box device 20, a planting device 21, a multi-perforation device 22, and the like, and moves up and down around the axis of a power receiving shaft 23 supported on the fixed side of the transmission case 8 and the like. The movable frame 24 swings in the direction. The rear portion of the movable frame 24 is elastically and suspendedly connected to the main frame 17 by elastic support means 25. The elastic support means 25 is provided on a bracket fixed to the mounting portion 18 of the main frame 17. A top 26 pivotally supported by the bracket and a lower end loosely inserted into the top 26 and pivotally connected to the movable frame 24. The support rod 94 has an adjustable length, and the coil spring 28 is fitted over the support rod 94. By turning the handle 27, the support rod 94 is screwed into a threaded portion to adjust the length.

A pressure reducing roller (or soil covering roller) 38 provided at the rear of the movable frame 24 can adjust the distance between the movable frame 24 and the ridge A via an adjusting rod 98.
The height of the movable frame 24 can be adjusted.
The movable frame 24 includes a transmission case 30 having a wrapping transmission 29 for transmitting power to the seedling box device 20, the planting device 21, and the like. The wrapping transmission 29 is linked to the PTO shaft 12.

As shown in FIG. 8, the planting device 21 is supported by a movable frame 24 via a suspension link 31 by a parallel link 32 so as to be vertically swingable.
A beak-shaped openable and closable planting cylinder 33 is provided at the end of 2, and can be moved up and down by a crank motion of a crank body 34 interlocked with a winding transmission 29. The multi-perforation device 22 is provided in front of the planting tube 33. The perforation device 22 has a gas burner that uses the gas of the propane gas cylinder 35 shown in FIGS. 6 and 7 as a fuel, and burns the multi-film covered on the ridge A at equal intervals in the ridge longitudinal direction with a gas burner to form holes. The planting cylinder 33 protrudes into this hole, and the soil seedling B is transplanted to the ridge A.

In addition, in FIG.
Reference numeral 37 denotes a pair of left and right front wheels, and 37 denotes a ridge-and-shoulder copying roller. Seedling box device 20 in transplantation work unit 11
Has a seedling box vertical feeding mechanism 39, a seedling pushing mechanism 40, a seedling lateral feeding mechanism 41, a defective seedling detecting mechanism 102, and a defective seedling eliminating mechanism 103. Is mounted via a stay 42 or the like.

The seedling box vertical feeding mechanism 39 includes a pair of front and rear center guide rails 43 formed in a bow shape and a center guide rail 4.
3 is provided with seedling box guide means 45 having a pair of front and rear side guide rails 44 arranged on the front side and along the lower half. An intermediate portion in the longitudinal direction of the central guide rail 43 is a vertical guide portion 46, and upper and lower guide portions 47 and 48 which are curved to the same side vertically are coupled.

The side guide rail 44 has a trumpet-shaped insertion opening 49 formed in the upper part, and an outlet 50 formed in combination with the lower guide part 48 in the lower part. The outlet 50 is formed by the main frame 17 and the drive wheel 14. And is located between. The seedling box 51 is made of resin, has flexibility, and has a large number of pot portions 5 arranged vertically and horizontally.
2 is provided on the rear surface, and seedlings B with seedlings are raised in the pot portions 52. A space 54 is formed between the pot portions 52 in the vertical and horizontal directions. The seedling box 51 inserted from the insertion opening 49 as shown by the arrow in FIG. 4 is bent toward the upper guide portion 47, and is discharged from the outlet 50 through the transplantation working portion 11 while being curved and guided. 3, and is discharged to the outer side of the ridge A on one side in the traveling direction, particularly to the side of the drive wheel 14.

The pot portion 52 of the seedling box 51 is formed in a tapered cylindrical shape to facilitate extruding the seedlings B with soil, and a bottom portion of the pot portion 52 is formed with an extrusion opening by the seedling pushing mechanism 40. The seedling box vertical feed mechanism 39 includes a pair of left and right feed claws 55 for intermittently feeding the seedling box 51 one pitch at a time in the vertical direction. The feed claws 55 are vertically adjacent to each other at the vertical guide portion 46. It enters into the space 54 between the pot portions 52 and moves down after moving down.

Each of the left and right feed claws 55 has a U-shape so as to hold the pot portion 52 from behind, and is provided at the tip of a support rod 56, and the base end of the support rod 56 swings via a vertical shaft support 57. The pair of front and rear swing brackets 58 are mounted on a moving bracket 58 and supported by a support frame 59 so as to be vertically swingable about a support shaft 60 having a longitudinal axis. The pair of left and right support rods 56 can swing in the front-rear direction around the shaft support 57 as shown in FIG. 9, so that the feed claws 55 enter and exit the gaps 54 by this swing. I have.

As shown in FIG. 8, a relay transmission case 62 having a built-in relay transmission mechanism 61 using cams and gears is fixed to the rear wall of the support frame 59.
The input unit 63 of the internal transmission mechanism and the above-described winding transmission 29 are linked by a vertical winding transmission 64. As shown in FIG. 4, the output portion of the relay transmission mechanism 61 is distributed to a seedling box vertical feed drive rod 65, a seedling pushing drive rod 66, a seedling lateral feed shaft 67, and the like.

The driving rods 65 and 66 are arranged side by side and reciprocated vertically, and the shaft 67 is extended horizontally to have a driving sprocket 68. As shown in FIG. The endless chain 70 is wound around a driven sprocket 69 disposed opposite to the front and rear to form a seedling lateral feed mechanism 41 that intermittently feeds one pitch at a time.

A plurality of seedling receiving trays 71 are arranged in the chain 70 at intervals in the longitudinal direction, and the seedling receiving trays 71 swing from a horizontal posture to an inclined posture around a longitudinal axis 72 shown in FIG. It is freely movable and is urged by a helical spring 73 or the like to change from a horizontal posture to an inclined posture. A guide rail 95 for holding the seedling receiving tray 71 in a horizontal position is provided on a fixed side, and a lowering portion 95A is formed at a sending end of the guide rail 95 so as to be one step lower. Arrives, the helical spring 73 forcibly changes the inclined position, and the soiled seedlings B on the seedling receiving tray 71 can be intermittently supplied to the planting cylinders 33 one by one.

The driving rod 65, the first relay link 76, the second relay link 80, and the like constitute a feed pawl driving means 74. A first relay link 76 is pivotally supported on the upper part of the rear wall of the support frame 59 via a support shaft 75 so as to be swingable in the left-right direction. An end of the drive rod 65 is attached to a short arm 76A of the first relay link 76. It is pivoted with pins with play. First
The relay link 76 integrally includes a short arm 76A and a long arm 76B, and a manual operation lever 77 is provided on the support shaft 75 in parallel with the first relay link 76. The arm 77A of the manual operation lever 77 and the long arm 76B are arranged side by side,
Both are linked by a rod 78 skewered and a coil spring 79 for buffering shown in FIG.

The support frame 59 is provided with a crank-shaped second relay link 80 that swings around the vertical axis. The second relay link 80 and the manual operation lever 77 are pivotally connected by a connecting rod 81. One arm 80A of the second relay link 80 is engaged with a notch recess 58A formed in the upper part of the swing bracket 58 with play in the left-right direction.

The other arm 80B of the second relay link 80
Is connected to one end of the interlocking link 82 swinging about the vertical axis.
The other end of the interlocking link 82 and the front support rod 56 having the feed claw 55 are connected by a second link 84, and are further arranged below the first link 83 by being overlapped therewith. The third link 85 connects one end of the interlocking link 82 to the rear support rod 56 having the feeding claw 55, and the interlocking link 82, the first to third links 83, 84, 85, etc. , That is, an opening / closing link mechanism for moving the feed claw 55 into and out of the gap 54 between the pot portions 52 adjacent in the vertical direction.

Therefore, the first movement of the driving rod 65 causes the first movement.
The manual operation lever 77 is connected to the support shaft 75 via the relay link 76.
Is converted into a left-right swinging motion about the axis of the second relay link 80 through the pushing / pulling motion of the connecting rod 81 within the range of play with the notch recess 58A of the swinging bracket 58. By being converted into a dynamic motion, the pair of support rods 56 are pivotally connected to the shaft support 57 through the opening / closing link mechanisms 82 to 85.
Swinging around the fulcrum, the feed claws 55 enter and exit the gaps 54 that are adjacent in the vertical direction.

On the other hand, the notch recess 58 of the swing bracket 58
When the second relay link 80 is caused to swing back and forth beyond the range of play with respect to A, the swing bracket 58 swings up and down around the support shaft 60, where the feed claw 55 enters the gap 54. At this time, by swinging the swing bracket 58 downward, the seedling box 51 is fed one pitch in the vertical direction, and then the feed claws 55 are retreated from the gap 54 to swing the swing bracket 58 upward. Accordingly, the seedling box 51 is ready for the next vertical feeding, so that the seedling box 51 is intermittently fed one pitch at a time in the vertical direction.

Incidentally, by manually operating the manual operation lever 77, the seedling box 51 is manually fed vertically one pitch at a time. This is a preparation work for loading the seedling box 51 into the insertion slot 49 and starting operation. It is useful in such cases. Seedling pushing mechanism 4
Numeral 0 is arranged in the arcuate space of the center guide rail 43 together with the feed claws 55 and the like. Pusher 8 protruding into tray 71
6 is provided.

As shown in FIGS. 8 and 9, the pushers 86 are arranged in a comb-like manner on a slider 87, and the slider 87 slides on a slide guide 88 projecting inward from the side wall of the support frame 59. It is supported by. At both ends (front and rear) of the slider 87, a bracket 89 having a long hole 89A is provided.
Are fixed, and the engaging pieces 90 that fit into the elongated holes 89A are fixed.
A of the pair of second swing links 90 with the support frame 5
The front and rear walls 9 are each pivotally supported by a horizontal axis 90B.

On the other hand, the end of the pushing drive rod 66 is
The other link of the first swing link 91 and the lower end of the first swing link 90 are connected to one arm of the first swing link 91 pivotally supported via the horizontal shaft 91A.
It is connected by two. Accordingly, the push-pull movement of the drive rod 66 is performed via the first swing link 91 and the connecting link 92.
The power is transmitted to the swing link 90, transmitted to the slider 87 by the left and right swing of the second swing link 90, and the slider 87 reciprocates linearly on the slide guide 88, from behind the pot portion 52 via the pusher 86. One row of soiled seedlings B
Is pushed onto the seedling receiving tray 71 of the seedling lateral feeding mechanism 41, and then retreats.

The seedling pushing mechanism 40 operates the pusher 86 in the pushing direction when the seedling lateral feeding mechanism 41 is in a standby state for stopping and the seedling box vertical feeding means 39 is in a standby state for stopping. I do. When the seedlings are horizontally fed by the seedling lateral feeding mechanism 41, the seedling box vertical feeding mechanism 39 feeds the seedling boxes vertically by one pitch. The seedling lateral feed mechanism 41 intermittently feeds one row of soiled seedlings B one pitch at a time from the state in which the seedlings B are supported on the seedling receiving tray 71, one at a time at the sending end thereof. Supply falling. Above the delivery end of the seedling lateral feed mechanism 41, a reciprocatingly swinging seedling removing means 93 is provided to ensure this drop supply.

In FIG. 1 to FIG.
1. The defective seedling detection mechanism 102 and the defective seedling elimination mechanism 103 will be described in detail. The seedling lateral feeding means 41 fixes a large number of brackets 110 to the endless chain 70, and supports a seedling receiving tray 71 via a shaft 72 on the bracket 110 and is provided with a helical spring 73. The seedling receiving tray 71 is substantially L-shaped in a side view on which the seedlings B with soil can be placed.
In the middle of the upper surface, a position setting unit 111 for setting the position of the block soil b of the soil seedling B is formed of a bar or the like.

The seedling receiving tray 71 has the endless chain 7
0 while being kept in a horizontal position by the guide rail 95 by the intermittent movement of the planting tube 33,
At this position, the lower part 95A of the guide rail 95 inclines so as to be downward toward the planting cylinder 33, and the mounted seedling B is dropped from the block soil b side. Guide rail 9
5 is formed of a plate material or a bar material, and an endless chain 70
And guides the fully closed seedling receiving tray 71 in a horizontal posture or an inclined posture.

The defective seedling detection mechanism 102 includes a seedling detection sensor 104 disposed one pitch above the planting cylinder 33,
It has an actuating means 105 for moving it up and down, and a contact member 106 provided on the entire seedling receiving tray 71. Contact member 10
Reference numeral 6 denotes a support portion 112 erected from the vertical wall of the seedling receiving tray 71.
A contact portion 106A pivotally supported on the horizontal axis 113 through the horizontal axis 113 and comes into contact with the foliage a of the soild seedling B, and a sensing portion 106B protruding in a direction crossing from the contact portion 106A.
When the foliage a contacts the 06A, the sensing unit 106B faces upward
When there is no foliage a next seedling with soil B (detected attitude shown by the solid line in FIG. 2), the sensing unit 106B is downward from horizontal (Fig. 2
(A non-detection posture indicated by a one-dot chain line) .

The seedling detection sensor 104 has a long detection piece 104A.
Operating means 10 formed by a limit switch having
Numeral 5 is formed of a rotary solenoid or the like, and a seedling detection sensor 104 is attached to a rotation shaft 105A of the rotary solenoid, and the tip of the detection piece 104A is rotated with respect to the contact member 106 so as to move in the vertical direction. Actuating means 10
5 operates in synchronization with the seedling lateral feeding means 41, descends the detection piece 104A of the seedling detection sensor 104, and comes into contact with and detects the sensing portion 106B when the contact member 106 is in the foliage a detection state. . Detecting piece 1 when foliage a does not exist
Even if 04A falls, it does not come into contact with the sensing unit 106B.
The seedling detection sensor 104 detects the failure of the seedling B, and activates the defective seedling elimination mechanism 103.

The defective seedling elimination mechanism 103 is disposed on the side of the planting cylinder 33 and has a rotating shaft 115 of a rotary solenoid 115.
A push-up member 116 in the shape of an arc is attached to A. The seedling detection sensor 104 operates after detecting the failure of the seedling B on the seedling receiving tray 71 to move the seedling receiving tray 71 that moves one pitch downward. To prevent the seedling receiving tray 71 from being inclined. If the seedling receiving tray 71 is not in the inclined posture, the seedling-free block soil b thereon (defective seedling)
Is not supplied to the seedling tube 33, and the seedling receiving tray 7
At the point when 1 has passed the planting tube 33, the push-up member 116
As a result, the block soil b falls and is removed.

[0043] The defective seedling exclusion mechanism 103 has a chute-like guide member 117 in a position where the seedling without block earth b is dropped eliminated, the guide member 117 is dropped guide blocks soil b into the groove C between ridges A The block soil b is used for holding the multi-film D. still,
The defective seedling eliminating mechanism 103 and the operating means 105 are fixed to the stay 42.

The planting device 21 includes a seedling detection sensor 104.
When a defective seedling such as a seedling-free block soil b or a foliage-ungrown seedling is detected, the defective seedling excluding mechanism 103 is operated to
The inclination of the seedling receiving tray 71 that has reached the position 3 before is prevented so that the defective seedlings fall into the guide member 117 without entering the planting cylinder 33, and the normal soiled seedlings B move next. Power transmission to the drive wheel 14, the multi-perforation device 22 and the like is cut off until the time comes, so that the implantation interval is not changed.

FIGS. 10 and 11 show a modified example of the defective seedling detecting mechanism 102 and the defective seedling eliminating mechanism 103, in which the contact member 106 is not provided and the detecting piece 104A of the seedling detecting sensor 104 is directly connected to the foliage a. And the presence or absence thereof is detected, and the rotation angle of the seedling detection sensor 104, that is, the vertical movement range of the tip of the detection piece 104A needs to be larger than in the above-described embodiment. Similarly, foliage a
Can be detected, and the manufacturing cost is reduced. The position setting unit 1
Numeral 11 is formed by sticking a bar to the upper surface of the seedling receiving tray 71.

The defective seedling eliminating mechanism 103 includes the push-up member 11.
6 is provided with a rotating shaft 115A of the rotary solenoid 115.
Are directed in the front-rear direction, and the kicking means 128 is disposed above (above the seedling receiving tray 71 located at the soil seedling B supply position), and the guide member 117 is disposed at a position facing the planting cylinder 33. I have. The kicking means 128 is provided with a kicking member 130 formed of a bar or a brush on a rotating shaft of an actuator (a rotary solenoid or the like) 129. And can be kicked out on the other side.

That is, if the seedling B is a defective seedling, the raising member 116 prevents the inclination of the seedling receiving tray 71,
The kicking member 130 of the kicking means 128 kicks the defective seedling placed thereon on the side opposite to the planting tube 33, forcibly sends it to the guide member 117, and drops it into the groove C. I have. In the case of this modification, it is easier to kick out a defective seedling if the position setting section 111 is not provided, but the defective seedling may be destroyed by a strong kicking of the kicking member 130. There is no problem even if it is provided.

The present invention is not limited to the above embodiment, but can be variously modified. For example, the guide member 117 is formed so as to widely cover the lower part on the end side of the seedling lateral feeding means 41 except for the planting tube 33, and the planting tube 33 is formed.
All the seedlings B that have not been normally supplied to the soil may be guided to the groove C.

[0049]

According to the present invention described in detail above, defective seedling detection
The dispensing mechanism 102 moves down to the upper side of the planting device 21.
Of foliage a of soiled seedling B on seedling receiving tray 71
The seedling detection sensor 104 is disposed.
4 is lifted in synchronization with the intermittent movement of the seedling receiving tray 71
With the actuation means 105, the seedling detection sensor 104
It is possible to reliably detect the foliage a of the attached seedling B and to move intermittently.
A normal defective seedling that does not interfere with the seedling receiving tray 71
A detection operation can be performed.

Further , the defective seedling detecting mechanism 102
When placing seedlings B on the tray 71,
The contact member 106 that is changed from the non-detection posture to the detection posture is
Provided and detected by moving down to the upper side of the planting device 21
It comes into contact with the contact member 106 in the posture and it becomes the detection posture.
A seedling detection sensor 104 for detecting that
Seedling detection sensor 104 for intermittent movement of seedling receiving tray 71
Since it has the operating means 105 that lifts in synchronization,
It is possible to detect the foliage a of the seedling B more accurately and to detect the seedling.
The lifting stroke of the sensor 104 can be shortened.

Further, a defective seedling eliminating mechanism 103 is provided.
The defective seedling removing mechanism 103 receives the defective soil seedling B falling on the lower side of the planting device 21 or
Receiving the defective soild seedling B discharged to the side opposite to the planting device 21 through the kicking means 128 at a position facing the ridge A,
Because it has a guide member 117 for guiding the groove C between, without damaging the implant seedling B and mulch film D seedlings B with poor soil to be eliminated, yet be useful as a retainer for a multi-film D in furrow groove C Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing an embodiment of the present invention.

FIG. 2 is a sectional rear view of the main part.

FIG. 3 is a side view of the main part.

FIG. 4 is a rear view when the seedling pushing mechanism advances.

FIG. 5 is a rear view when the seedling pushing mechanism is retracted.

FIG. 6 is a side view of the entire transplanter.

FIG. 7 is a plan view of the entire transplanter.

FIG. 8 is a side view of the transplantation working unit.

FIG. 9 is a sectional view taken along line XX of FIG. 4;

FIG. 10 is a perspective view showing a modified example of the defective seedling detecting mechanism and the defective seedling removing mechanism.

FIG. 11 is a rear view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transplanter 11 Transplantation work part 17 Main frame 20 Seedling box device 21 Planting device 22 Multi-perforation device 24 Movable frame 39 Seedling box vertical feed mechanism 40 Seedling pushing out mechanism 41 Seedling lateral feeding mechanism 45 Seedling box guide means 102 Bad seedling detecting mechanism 103 defective seedling elimination mechanism 104 seedling detection sensor 105 operating means 106 contact member 128 kicking means A ridge B soil seedling C groove D multi-film

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yuji Izuno 1-1-1 Hama, Amagasaki-shi, Hyogo Prefecture Kubota Corporation Electronic Technology Center (72) Inventor Yuji Watanabe 1-1-1 Hama, Amagasaki-shi, Hyogo (56) References JP-A-4-293407 (JP, A) JP-A 54-139944 (JP, U) JP-A 54-139947 (JP, U) 58) Field surveyed (Int. Cl. ⁶ , DB name) A01C 11/02

Claims (3)

(57) [Claims] 1. A large number of seedling receiving trays (71) are arranged endlessly and intermittently moved one pitch at a time. A seedling (B) is placed on each seedling receiving tray (71). The quality of the seedling (B) on the receiving tray (71) is detected by the defective seedling detection mechanism (102), and the normal seedling (B) is transferred from the seedling receiving tray (71) to the planting device (21) at a required position. be received passed on)
In transplantation machine, the defective seedling detection mechanism (102), the planting device (21)
By moving down well, the seedling receiving tray (71)
Seedling detection sensor (1) for detecting foliage (a) of soild seedling (B)
04), and the seedling detection sensor (104)
Actuator lifting the tray (71) in synchronization with intermittent movement
An implanter comprising a step (105). 2. A large number of seedling receiving trays (71) are arranged endlessly and intermittently moved one pitch at a time, and a soil seedling (B) is placed on each seedling receiving tray (71). The quality of the seedling (B) on the receiving tray (71) is detected by the defective seedling detection mechanism (102), and the normal seedling (B) is transferred from the seedling receiving tray (71) to the planting device (21) at a required position. ), The defective seedling detection mechanism (102) includes:
The contact member (10) which is changed from the non-detection position to the detection position by the foliage (a) when the seedling (B) is placed on 1).
6), a seedling detection sensor (1) that moves down to the upper side of the planting device (21) to contact the contact member (106) in the detection position to detect that it is in the detection position.
04) is disposed, and has an operating means (105) for raising the seedling detection sensor (104) in synchronization with the intermittent movement of the seedling receiving tray (71). 3. A defective seedling elimination mechanism (103) for dropping defective soild seedlings (B) after passing through the planting device (21). Receiving the defective soild seedling (B) falling on the lower side of the device (21), or opposing the planting device (21) via the kicking means (128) at a position facing the planting device (21). The transplant according to claim 1 or 2, further comprising a guide member (117) for receiving the defective seedling (B) released to the side and guiding it to the groove (C) between the ridges (A). Machine.