JPS63233703A - Seeder for pot type raising seedling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Application This invention provides a method for forming a pot group in which the upper edges of each seedling-growing pot are connected to each other and the lower sides thereof are independent, forming a rectangular pot group as a whole. Place a paper or resin seedling nurturing device with a growth hole on top of the board reversing tool, and assemble it.
While this seedling raising device with inversion tool assembly is being transported by conveyor, a small amount of covering soil is supplied into each pot, followed by sowing, and then bed soil is supplied and the seedlings are transferred. A transfer type of seedling raising device that covers a seedling raising device with a tool assembly from above with a seedling box, turning the seedling raising device with a reversing tool set on top of the seedling box as appropriate, then removing the reversing tool on the top surface, and then watering. The present invention relates to a seeding device, and more particularly to a removing device for its reversing tool.

PRIOR TECHNOLOGY Conventional seeding machines for pot-type seedlings leave the pot-shaped seedlings on top of the reversing tool, cover the seedlings with soil during transfer, then sow the seeds, fill with bed soil, and then cover the seedling boxes on top. To perform watering by turning the seedlings upside down and removing the inverting device on the top, no technical means have been developed to cover the seedling box or remove the inverting device.

This work relied on manual labor.

Problems that the invention aims to solve Conventionally, the removal of the reversing tool has been done manually, which not only does not improve efficiency but also causes considerable fatigue during sowing, so there is a strong demand for automation. Met. Therefore, it was considered to scoop up and remove the reversing tool while it was being transferred, but an attempt was made to make the reversing tool slide down after being removed and transport it to a predetermined position using a conveyor.
A contradictory situation arose in that efficiency could not be improved unless the sliding speed was increased, and if the speed was increased too much, the delivery to the conveyor could not be ensured.

Means for Solving the Problem The upper edges of the opening side of the seedling growing pots 9a made of paper or resin are made continuous with each other, and a growing hole is provided in the center of the bottom of each seedling growing pot 9a in which the seedlings begin to grow and settle during seedling raising. A reversing tool 10 made of a plate for closing the growth holes 9b is placed on the back side of the seedling growing device 9, which is rectangular in plan view and has a large number of pot groups having holes 9b formed therein.
In this state, put a small amount of soil in each seedling raising pot 9a, then sow the seedlings, then fill the seedling pot 9a with bed soil, cover the seedling container 9 with the seedling box 18, and turn it upside down. A reversing tool removing device K is provided for scooping up and removing the back surface of the reversing tool 1o located above the seedling box 18 in the middle of the transfer during the transfer route when the reversing tool 10 is in the upper position and being transferred by a conveyor, The reversing tool 10 to be removed by the reversing tool removing device K is supplied to an inclined slide 103 and slid down, and the reversing tool 10 is appropriately supplied to a conveyor 105. This seeding machine for a pot-type seedling nursery is provided with a brake mechanism for applying a brake to a rotating reversing tool 10.

Functions and Effects of the Invention Since the present invention has the above-described configuration, when the reversing tool assembly raising W device P, which has been turned upside down and the reversing tool 10 is located at the top, is being transferred, the guide body 72 By Nae'ju
When 8 is guided and regulated so that it does not tilt horizontally to the left and right with respect to the transport direction and is being transported in a normal state,
The transfer tip side of the upper reversing tool 10 is lifted by the flotation device 74.

On the back side of this lifted reversing tool 10, the reversing tool 1o back v
The scooping body of iK enters and the reversing tool 10 is removed.

Then, the scooped-up reversing tool 10 is slid downward at a certain timing and is supplied onto the slide 103. Then, the reversing tool 1o that has been slid down onto the slide 103 is appropriately limited in its sliding speed by a brake mechanism 104, and is transferred to a conveyor 105 and transported to a predetermined position.

Therefore, according to the present invention, the reversing tool 10 can be automatically and reliably transferred from the reversing tool removing device K to the conveyor 105 and sent to a predetermined position.

Example An embodiment of the present invention will be described in detail based on the drawings.

One conveyor A is provided in four sections, first to fourth, which can be disassembled into a connected state and a detachable state, and one conveyor A for each section, A2. A1. A4 is configured by connecting a pair of left and right frames 1 with appropriate horizontal frames 2b and having legs 2a at a constant height.

v? In the first and second conveyors A, A2.

Conveyor belts 3 and 4 are stretched in the front and back direction,
When an object is placed on this, the second conveyor A2 side is configured to transfer it at a faster speed than the first conveyor A side. The third conveyor A has rotating rollers 5 and 5 on its starting end and ending end to rotate and transfer the object to the downstream side.
・5 and rotating rollers 6, 6, and 6 are attached to the left and right frames 1a.
- Cross the rack between 1a and install the reversing device (described later) between the starting end and the ending end! The structure is such that dH is provided. On the fourth conveyor A4, a conveyor belt 7 is stretched on the starting end side, and rolling rollers 8, 8, 8, . . . are stretched over the ending end side.

B is a seedling nursery supply device, which is made of pulp and has a tapered outer periphery so that the upper edges of each seedling raising pot 9a are continuous with each other and the lower sides are independent from each other, and a sprouting hole 9b is bored in the bottom. An inversion device in which a seedling raising device 9 having a rectangular shape and a plate-made reversing device 10 which is placed on the underside of the seedling raising device 9 and provided with fitting protrusions 10a to prevent it from shifting in the left-right and front-back directions are assembled in advance by hand. The first conveyor 80 conveyor belts 3 sequentially supply the seedling raising devices P with the assembly to the seedlings P in order.

The reversing tool 1o needs to be removed after reversing, and a collar 10c is provided further outward from the left and right fitting frame 10b of the seedling raising device 9 in order to scoop it up and easily remove it.

C is a covering soil supply device, which is provided on the conveyor belt 3 on the back side of the seedling nursery supply device B, and is provided in a covering soil storage tank 11.
and a covering soil feeding device 12.

Reference numeral D denotes a seeding device, which is installed on the conveyor belt 3 following the soil covering supply device C, and is composed of a seed storage tank 13 and a seed feeding device @14.

Reference numeral E denotes a bed soil supply device, which is provided on the conveyor belt 4 on the starting end side of the second conveyor A2, and is composed of a bed soil storage tank 15 and a bed soil delivery device 16.

F is a crushing device that presses and flattens the surface of the bed soil piled up on the top surface of the reversing device assembly seedling growing device P that has passed through each of the above-mentioned devices. It is suspended horizontally at a predetermined height.

G is a device for laying down seedlings using a seedling box, which is installed above the transfer rotation rollers 5, 5, and 5 on the starting end side of the third conveyor A, and has an inner rectangle of about 30 marks in width and 60 cm in height. Rectangular seedling boxes 18 are stacked face down, and the upper side of the transfer side is supported by rolling rollers 19 as front supports, and the transfer side end surface has a pitch corresponding to the vertical height of the seedling boxes 18. The receiving is stopped by pins 21a and 21b as rear supports that alternately go in and out each time the electromagnetic solenoid 20 is energized, and the seedling boxes 18 fall one by one from the transfer direction side, and the transfer roller 19 causes the seedling boxes 18 to fall one by one from the transfer direction side. It is fitted from above to the transfer end side of the seedling raising device P with a reversing tool assembly that is being transferred in a tilted state, and is pulled out backwards and transferred as the reversing tool assembly and seedling growing device P is transferred. If it comes off the moving roller 19, it will fall, and the seedling raising device P with reversing tool assembly that is being transferred will be placed face down.
It is configured to be fed out while being pressed by a pressure roller 22. Incidentally, 23 indicates a frame of the seedling raising device laying down device fiG.

Reference numeral 24 denotes a pressing roller for accurately fitting the seedling grower 9 to the reversing tool 10. The front side is attached to a support frame 25 that can be moved up and down, and is configured to be pushed down by a spring 26. .

Reference numeral 27 denotes a limit switch as a detector, which detects passage of the reversing tool 10 transferred with the seedling box 18 placed on the receiver-assembled grower P and excites the electromagnetic solenoid 2o. The seedling raising device P with the reversing tool assembly, which is not covered with the seedling box 18, is configured to work when the seedling raising device P, which is not covered with the seedling box 18, approaches the end side in the transfer direction of the seedling box 18 held by the seedling raising device laying down device 11ffG. There is.

Reference numeral H denotes a reversing device, which is located on the rear side of the seedling raising device laying down device G, and is a device for turning over the seedling raising device P with the reversing tool assembly that has been sent out with the seedling box 18 covered, as it is; Specifically, it is structured as follows.

In other words, the front and rear panels act as a holding device that sandwiches and supports the upper and lower surfaces of the seedling raising device P with the reversing tool assembly, on which the seedling box 18 is placed, between the left and right plates 28a and 28b, which have an interval wider than the width of the seedling box 18. A pair of pinching rollers 29a, 29b, 30a, 30
b is pivoted by shafts 31a, 31b, 32a, 32b, and the left and right plates 28a, 28b are mutually supported by shafts 38a, 32a, 32b.
38b.

39a and 39b, and the upper and lower and front and rear center outer parts of the left and right plates are rotatably supported by the frame 1 by a right support shaft 33 and a left support shaft 34. Incidentally, these left and right plates are naturally rotated in the direction of arrow A to invert the seedling raising device P with the reversing tool assembly, but in order to prevent the situation in which the center of gravity shifts and causes vibration during the inversion, it is necessary to A well-known one-way transmission mechanism 35 (generally called a one-way clutch) is provided between the support shaft 33 and the frame 1 as a drive prevention mechanism.

And, on the front side of this reversing device II, there is provided a seedling device pushing device 1 for forcibly pushing the seedling raising device P with the reversing tool assembly described in I above between the upper and lower holding devices of the reversing mechanism H, and 1) On the rear side of the reversing device 1, there is provided a raising device pull-out device J for forcibly pulling out the seedling growing device P with a reversing tool assembly that is held between the upper and lower clamping devices and turned upside down.

Both the seedling raising device pushing device and the seedling raising device pulling device J are:
A pair of holding rollers 36a are forced to rotate while holding the seedling raising device P with reversing tool assembly from above and below.

36b, 37a, and 37b are supported.

To explain the transmission structure of the reversing device H, a motor 40 supported on the frame 1 at the upper part of the seedling raising device pushing device transmits a spindle 41 of the holding roller 36a, and from this spindle 41 the upper holding roller The support shaft 42 of the reversing device H is transmitted from the support shaft 41 and 36b by a chino 43, and each of these support shafts 41 and 42 is configured to be driven in reverse. The rotation is transmitted through a position stop clutch mechanism 46.

That is, the drive as the left support shaft, 1ill 34 is 180
The fixed position stopping clutch mechanism 46, which stops the rotation of σ, is provided with pins 49, 50 at symmetrical positions with respect to the axis of the passive wheel body 48 with a boss, which is wedged on the drive shaft 34 with a key 47. Protrusions 51a, 5 to which adjusting bolts 51b, 52b, which are engaged with clutch pins to be described later, are screwed onto the pins 49,50.
A clutch pawl 51.52 having a diameter of 2a is fitted and provided, and both clutch pawls 51.52 are connected by a connecting rod 53, while the shaft 34 has an engagement recess opening into which the clutch pawl 51.52 engages. A large number of clutch cam bodies 54 formed on the inner circumferential surface are mounted via a one-way transmission mechanism 55, and the clutch pawl 51 is biased by a coil spring 56 so that the tip of the pawl resiliently engages with the four-portion opening. There is. still,
57 and 58 indicate interlocking pins.

59 is a detector for the seedling raising device P, which detects movement of the front end of the seedling raising device P pushed out through the holding device of the reversing device I, and is attached to the frame 1 so as to be movable and rotatable. A sensing roller 66 is mounted on a cylindrical body 62 fixed to a support shaft 60 with a pin 61 via a bracket 63 and a U-shaped fitting 65. A metal fitting 67 having a long hole 67a drawn therein is fixed, and the bolts 51b and 5 of the clutch pawls 51 and 52 of the half-turn fixed position stop clutch mechanism 46 are inserted into this long hole 67a.
The clutch actuating shaft 68 that comes into contact with the clutch 2b is inserted into the clutch actuating shaft 68 and is restricted by pins 69 and 69 so that it does not move in the axial direction. Reference numerals 70 and 71 each indicate a return spring, 70 has a function of returning the support shaft 60 to a predetermined position in the front and back, and 71 has a function of raising the sensing roller so that its vertical position becomes a predetermined height. It is configured as follows. Incidentally, this operating shaft 68 is also supported by the frame 1 so as to be movable only in the front-back direction, and is provided so as to be movable together with the supporting shaft 60.

The roller 66 as an actuator of this detector 59 is arranged so that the seedling raising device P pushed out through the reversing device I (on which the seedlings ri 18 are covered) is positioned on the spindles 33 and 34 of the reversing device H. When the front side is considerably long as a reference, the roller 66 contacts the seedling box 18, moves backward against the spring 70, moves the operating shaft 68 backward, and stops at the fixed position by half a rotation. Clutch mechanism 4
The clutch is configured to be turned on by removing it from the clutch pawl of No. 6.

Reference numeral 72 denotes a guide body made of round rods 72a and 72b screwed onto the left and right frames 1 of the third conveyor A through brackets 73 and 73.

The guide body 72 is configured to guide and restrict both sides of the seedling box 18 of the ff seedling device P with the reversing tool assembled therein so as to prevent it from being deflected during transportation. Reference numeral 74 denotes a reversing tool flotation device, which integrally fixes reversing tool receivers 74a and 74b which are inclined so that the front part is low and the rear part is high, from the middle part in the front and back direction of the left and right guide bodies 72 to the rear part. It is configured as follows.

K is a reversing tool removing device, which is located behind the reversing tool flotation device 74 on the rear side of the reversing device H, and is attached to the upper surface of the seedling raising device P that is reversed by the reversing device H and transferred by a conveyor. A scooping rod 75 that scoops up the lower surfaces of the left and right flanges 10c of the reversing tool 10, which has been positioned and whose transfer tip side has been partially lifted by the flotation device 74, is pivotally attached to the frame 1 with a pin 76. A receiving rod 77 is attached to the end side, and a bracket 78 fixed to the scooping rod 75 side and a bracket 79 fixed to the receiving rod 77 side are pivotally connected with a pin 80.
The rear end and the front end of the receiving rod 77 are connected to each other so that a gap m is provided in the front-rear direction. And the scooping rod 7
From the extension surface of the upper surface of 5, 1) η is attached to the bracket 1-78 on the side of the upper rod 75 so that the upper surface of the upper rod 77 can be rotated only downward from a straight line that does not protrude upward. The head of the bolt 81 that is screwed together and set is configured so as to come into contact with a push-up tool 82 fixed to the receiving rod 77. The support body 83 is fixed to the frame 1, and only the scooping rod 75 is tilted by receiving a fixed protrusion 84 on the outer side of the rod 77 so that the rod 77 is generally horizontal in normal fg. Configure it like this. 85 is a support for the scooping rod 75, which is the frame 1
A pin 86 fixed to the scooping rod 75 is provided so as to be received therein.

Then, the receiving rod 77 is raised and lowered by a reciprocating arm 98 pivoted on the frame side which is operated by a crank pin 88 which is transmitted and rotated by a fixed position stop clutch mechanism 87 for one rotation, and is scooped up. It is configured so that the reversing tool 10 can be slid down at once.

To explain the transmission structure specifically, a clutch cam body 91 having a large number of clutch pawl engagement recesses 91a formed on the inner circumferential surface is fixed to a rotating shaft 90 installed on the frame 1 so as to be transmitted and rotated. A clutch pawl 94 having a protrusion 940 is rotated by a pin 95 on a rotating shaft 93 which is attached to the rotating shaft 90 via a one-way transmission mechanism 92 so as to be rotatable in the direction of rotation of the shaft but not in the opposite direction. The clutch pawl 94 is mounted so as to be freely movable, and the clutch pawl 94 is resiliently engaged with the engagement recess 91a of the clutch cam body 91 by a spring 96, so that the rotary ring 93 is transmitted and rotated from the one-rotation shaft 90. ing. Then, a crank pin 88 is inserted into the rotating shaft 93, and an arm 89 rotatably mounted on the front frame 1 is connected via a long hole 89a, and the arm 89 is integrally attached to the frame 1. The arm 98 is attached to a rotatably provided support shaft 97.
An elongated hole 98a is bored at the tip of the rod, and a pin 99 installed in the rod 77 is inserted therethrough.

The above-mentioned clutch operation and disengagement are performed by a clutch actuating pin 100 that comes into contact with an adjustment bolt screwed into the protrusion 94a of the clutch pawl 94. When the clutch pawl 94 comes into contact with the screw threaded bolt, the clutch pawl 94 receives the rotational force of the rotary wheel 93, rotates inward against the spring 96, disengages from the engagement recess 91a, and stops rotating @93. When it comes off the part 94a, the power is transmitted.

This clutch actuation pin 100 is connected to a piston 102 that retracts when the solenoid 1o1 is energized and protrudes when it is de-energized. box 18
is excited by the switch SW1 that detects the
The actuating pin 100 is instantaneously reciprocated upon detection of the seedling box 18, so that the clutch is "disengaged" every rotation.

Reference numeral 103 denotes a slide, which consists of a pair of left and right rods that slide downward and forward upon receiving the reversing tool 10 released by the reversing tool removing device, and is disposed at the bottom of the conveyor.
It is configured to receive the outer flange 10c of the left and right fitting frame 10b of No. 0 and slide down without being deflected to the left or right.

Reference numeral 104 is a brake, and a plate body 104a having a wide left and right width is rotatably hung from the frame 1 side with a hook 104b.
The structure is such that it is provided above the middle part of the left and right sliding support rods 103, and it comes into contact with the reversing tool 10 that slides down on the sliding support rods to apply a brake thereon, and also passes under the reversing tool 10, which will be described later. The receiver is meant to pass smoothly so that it does not bounce on the conveyor.

Reference numeral 105 denotes a return conveyor, which is located under the frame 1 and carries a pair of left and right belts 1 between the front and rear legs 2a, 2a.
05a, 105a are stretched across the conveyor 105, and the slide support rod 103 is positioned on the conveyor 105, and the reversible conveyor 10 is returned to the starting end side of the seeding device.

L is a top feeding device, which is placed on the conveyor belt 7 of the fourth conveyor A4, and is a device that supplies soil about 8 minutes between each pot of the inverted seedling raising device 9; ,
It is composed of a soil storage tank 106 and a soil feeding device 107.

Reference numeral M denotes a watering device, which is located at the rear of the above-mentioned nurturing device J, and is a device for irrigating the surface of the seedling growing device 9, and has a fountain nozzle 108 attached to a water pipe.

The symbol 109 in the figure is a rod to prevent the seedling box from slipping off, which is provided at the bottom of the reversing device H, and prevents the seedling box covered with the seedling box being inverted from accidentally slipping from the clamping device during reversing. It is a guide rod.

To explain the operation of the upper side, first, the reversing tool 10 is placed on the lower surface of the seedling raising device 9 and the assembled seedling raising device P is transferred to the first conveyor 1 conveyor belt 3 of construction A by the seedling raising device supplying device B. When the seedlings are placed on top and fed, a small amount of covering soil is transferred and put into each pot 9a of the seedling raising device 9 being transferred by the covering soil supply device C, and then seeds (seed rice) are placed in each pot 9a by the sowing device. The soil is poured onto the covering soil and sown, and then the soil is supplied into each pot by the soil supply device E, and the soil is placed in the compaction device F.
The full bed soil is pushed into the bot 9a while being leveled and sent to the lower part of the seedling raising device laying down device G.

At this time, the detector 27 detects the state in which the reversing tool 1o has passed because the seedling raising device P with the reversing tool assembly is not present at the lower transfer end side of the lower part of the seedling raising device lowering device G. A signal is emitted to energize the electromagnetic solenoid 20, and the lowermost seedling 'T118 stacked face down is fed by the rolling rollers 19, 19 as the front support and the pin 21a as the rear support. At the same time as the pin 21a is retracted, the pin 21b is protruded to temporarily support the seedling box 18 in the second stage from the bottom so that it does not fall together, and then the pin 21a in its original state is protruded.

In addition, the next detection by the detector 27 is for the seedling raising device P with reversing tool assembly.
A signal will be emitted when the light passes through this detection section.

Therefore, only the side of the seedling box 18 in the transfer direction falls onto the conveyor, and the rear part is supported by the rollers 19, 19.

Then, when the above-mentioned seedling raising device P with reversing tool assembly is sent,
The front end of the seedling raising device 9 is fitted into the lower end of the seedling box 18 in the tilted position, and then transferred.

It is fed while being pressed by a pressure roller 22.

When the rear support of the seedling box 18 comes off from the rear rolling roller 19, it is held down by the pressure roller 22.
- At the same time, the seedling box 18 securely fits into the seedling raising device 9.

The seedling raising device P with the reversing tool assembly, which is thus covered with the seedling box 18 and sent out from the seedling raising device lowering device G, is forcibly moved by the upper and lower holding rollers 29a, 29b, and 30a of the reversing device H by the seedling raising device supplying device. .

30b as shown in FIG.

Then, when the seedling box 18 is slightly removed from the reversing device H,
The tip end surface hits the sensing roller 66 of the detector 59, and this roller 66 is moved backward.

Then, the clutch operating rod 68 connected thereto moves rearward and comes off from the adjustment bolts 51b and 52b attached to the protrusions 51a and 52a of the clutch pawl 51 or 52 of the half-turn fixed position stop clutch mechanism 46, The clutch pawl engages with the engagement recess opening of the clutch cam body 54, and the wheel body 4
8 is rotated.

The drive shaft 34 is rotated by transmission.

Therefore, the left and right plates 28a and 28b are rotated by transmission, and the seedling raising device P with a reversing tool assembly, which is held between these plates, is turned over through the state shown in FIG. 19. in this case,
The seedling raising device P to be reversed is rotated with the rotational axis of the anti-transmission rllH as a reference, and at the start of one reversal, the seedling raising device P is rotated with an offset to the front side, and as shown in Fig. 20, after being reversed, it is rotated naturally to the rear side. deviate to.

After the reversal starts, the seedling raising device P that had been in contact with the sensing roller 66 is removed from the sensing roller 66, so that the clutch actuating rod 68 and the roller 66 are returned to their original states by the spring 70. Therefore, the clutch pawl 51
．． Bolts 5 attached to protrusions 5la and 52b of 52
1b and 52b come into contact with the clutch actuating shaft 68 during half a rotation, and this contact causes both the clutch pawls 51 and 52 to come off from the engagement recess opening, thereby turning the clutch into a "disengaged" state.

As a result, the rotation of the drive shaft 34 is stopped and the drive shaft 34 is stopped in the state shown in FIG. 20.

That is, after reversing, the seedling raising device P is largely deviated from the center of the rotating shaft to the rear side and is stopped.

(The following is a blank space) At this time, the sensing roller 6G as the detector 59 is pressed downward by the inverted seedling box 18 and pushed downward against the spring 71, so that it does not become a transfer resistance.

Since the one-way transmission mechanism 35 is provided between the support shaft 33 and the frame 1 while the seedling nursery is inverted,
Even if the seedling nursery device passes the upright state in the middle of being reversed, it will not reverse due to its own weight, and since a one-way transmission mechanism 55 is also provided between the support shaft 34 and the clutch cam body 54, there will be no play due to chain transmission, etc. With this, the seedling nursery device can be stably inverted without vibration. In this way, when the seedling breeding device P2 is inverted, the following seedling breeding device P1 is moved forward from the center of rotation. Since the seedling raising device P1 is rotated in this state, there is a gap between the rear end of the seedling raising device P1 after the reversal, and during this period, the subsequent seedling raising device P2 can be continuously transferred without stopping the transfer, so that efficiency does not decrease.

Then, the seedling raising device P after inversion is stopped in the state shown in FIG. The device P is the clamping rollers 38a and 38b of the seedling raising device pull-out device J.
, 39a, 39b, and is transported while being pulled out rearward.

In this case, the drawer transfer speed v2 of the puller device J is set to be higher than the feeding transfer speed V by the pushing device, and the distance between the seedling raising device P2 that follows is adjusted and the seedlings are transferred. This transmission configuration may be suitably implemented by changing the pitch diameter of the chain transmission sprocket. In this way, the operating rotational speed of the reversing tool removing device and its transfer speed V are set higher than the transfer speed 2 of the pull-out device J, and the subsequent transfer speed 7 to the conveyor bell 1 is set lower.

In the later transfer to this reversing tool removal device, the transfer speed is returned to the one at the time of the push device construction, and the seedling raising device is transferred with no gap between the front and back, and the soil supplied by the above-mentioned priest dressing fiL is transferred downward. It is designed to prevent spills.

Although the explanation has been repeated, the left and right outer surfaces of the seedling box 18 are regulated by the guide member 72 so as not to swing left and right while the seedling raising device P after being inverted is being pulled out and transferred by the pull-out device J. The tip side of the reversing tool 10 of the seedling raising device P with reversing tool assembly that is guided and the reversing tool 10 being guided is placed in the upper position is reliably lifted by the floating device 74, and then the reversing tool removing device The scooping rod 75 accurately enters the right and left flanges 10c of the lifted reversing tool 10, scoops it up, and gradually pushes it upward. When the rear side becomes heavier, the reversing tool 10 rotates and rests on the receiving rod 77, and reliably separates upward from the seedling raising bot 9.

At this time, the scooping rod 75 and the receiving rod 77 have a gap m in the front and rear direction.
Since the bot 9a is deviated by the amount, the soil leaking from the bot 9a falls downward without interfering with the pivoting part between the scooping rod 75 and the receiving rod 77, and the receiving rod 77 is swung up by the arm 98, and both rods 75.77 This is because the rods 75 and 77 of both sides do not bend when the reversing tool 10 scooped up onto the upper surface is quickly slid down with the upper surfaces thereof aligned in one plane.

When the reversing tool 10 is accurately received by both rods 75 and 77, it can slide down toward the sliding support rod 103 while maintaining an accurate posture without bouncing up and down.

On the other hand, the seedling growing pot 9 accommodated in the seedling box 18 from which the reversing tool 10 has been removed is transferred to the rear, and the switch SW operator detects this and energizes the solenoid 101.

Then, the one-rotation fixed position stopping clutch mechanism 87 becomes "one person", and the rotating shaft 90 rotates the rotating shaft 93.

For this reason, the arm 98 is reciprocated up and down via the arm 89 by the crank pin 88 installed on the rotating shaft 93.

For this reason, as shown by the imaginary line in FIG. 13, the rear part of the receiving rod 77 is swung up and tilts significantly in a straight line together with the scooping rod 75.

Therefore, the reversing tool 10 placed on the receiving rod 77 quickly slides down and falls forward and downward from between the transfer rollers of the conveyor. Then, it is received by the slide 103 and slides forward and downward. At this time, the brake 104 stops the reversing tool 1o that is in the process of sliding down, and the brake 104 rotates forward with the force of the brake 104, and the reversing tool 10 passes under it, causing it to bounce, tilt, or fall. It is taken over by the return conveyor 105 and transferred to the starting end side of the seeding device without causing any damage.
1 is energized, the subsequent switch SW2 immediately de-energizes the solenoid 101 and the operating pin 100 returns to its original state. When the protrusion 94a of the clutch pawl 94 rotates once, it contacts the operating pin 100 and clutches the solenoid 101. will be cut off. Therefore, the receiving rod 77 returns from the tilted state and maintains the solid line state shown in FIG. 13, and becomes ready to start removing the subsequent reversing tool 10.

Subsequently, when the seedling raising device 9 from which the reversing tool 10 has been removed is transferred to the soil filling device J, there are approximately 8
Soil is poured in for about a day, and then watered thoroughly using an irrigation system.

In this way, a series of seeding operations is completed.

In the above-described embodiment, the seedling raising device laying down device G is incorporated in the process of the seeding machine, but this device G may be made removable so that this process can be performed manually.

[Brief explanation of drawings]

The figures show one embodiment of the present invention; Fig. 1 is a side view, Fig. 2 is a front sectional view of the main part, Fig. 3 is a partially cutaway slope view of the seedling nursery device, and Fig. 4 is a side view. is a slope view of the reversing tool, Figure 5 is a slope view showing a part of the state where the seedling raising device is set on the reversing tool, Figure 6 is a slope view of the seedling box, and Figure 7 is a side view of the seedling box lowering device. 8 is a side view of the main part, and FIG. 9 is a plan view of the main part. Fig. 10 is a plan sectional view of the main part, Fig. 11 is a back sectional view of the main part, Fig. 12 is a side sectional view of the main part, Fig. 13 is a side view of the main part, and Fig. 14 is a plan view thereof. , FIG. 15 is a back sectional view of the main part,
Figure 16 is a side view of the main part, Figure 17 is its plan view, and Figure 1
Figures 8 to 21 are side views of main parts for explaining the action;
FIG. 22 is a simplified side view showing the operation. Symbols in the figure: 9 is a seedling raising device, 9a is a seedling growing pot, 9b is a sprout hole, 1o is a reversing tool, 18 is a seedling box, K is a reversing A removal device, 103 is a slide, 104 is a brake machine i, 105 is a conveyor show.

Claims (1)

[Claims] The upper edges of the opening side of the seedling raising pots 9a made of paper or resin are made continuous with each other, and a large number of pot groups are formed in the center of the bottom of each seedling raising pot 9a, each having a growth hole 9b through which the seedling stems grow and grow during seedling raising. A reversing tool 10 made of a plate is placed on the back side of the seedling growing device 9, which has a rectangular shape in plan view.
In this state, put a small amount of covering soil into each seedling raising pot 9a, then sow seeds, and after filling with bed soil, cover the seedling raising pot 9 with the seedling box 18 as appropriate, turn it upside down, and turn it over. A reversing tool removing device is provided for scooping up and removing the back surface of the reversing tool 10 located above the seedling box 18 during the transfer during the transfer route when the reversing tool 10 is being transferred by a conveyor in a state where the tool 10 is on the upper side. The reversing tool 10 to be removed by the reversing tool removing device K is supplied to an inclined slide 103 and slid down, and this reversing tool 10 is appropriately supplied to a conveyor 105. This seeding machine for a pot-type seedling nursery is provided with a brake mechanism that applies a brake to a reversing tool 10.