JP2023063435A - Seedling-culture container stacking and taking-out method, and seedling-culture container stacking and taking-out device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that the rotation transmission configuration is complicated with all of transfer rollers and lifting rollers driven by one motor.

SOLUTION: Provided is a seedling-culture container stacking and taking-out method, in which a seedling-culture container A that has been sown is transferred to a shipping transfer table 15 provided at an end of a sowing transfer table 1, the seedling-culture container A is pushed by the subsequent seedling-culture container A and moves on transfer rollers of the shipping transfer table 15 which can idle via a one-way clutch 50, and when the preceding seedling-culture container A comes into contact with a start sensor 45, a stacking motor M starts to drivingly rotates the idling transfer rollers to transfer the seedling-culture containers, with the preceding seedling-culture container A in contact with a stopper, lifting rollers 20 are started to be drivingly rotated to perform lifting, the lifted preceding seedling-culture container A is supported by a support device 24 having supports 25, the subsequent seedling-culture container A is received below the supported preceding seedling-culture container A and lifted by the lifting rollers 20, and this operation is repeated and a predetermined number of stacked seedling-culture containers A is taken out.

SELECTED DRAWING: Figure 6

COPYRIGHT: (C)2023,JPO&INPIT

Description

The present invention relates to a method for stacking and removing sown seedling containers and an apparatus for stacking and removing seedling containers.

Conventionally, the end of a seeding transfer table for sowing seeds in an empty seedling container is connected to the beginning of a shipping transfer table, and the shipping transfer table has a transfer roller for transferring the seeded seedling container and a lifting roller for lifting. and a support for supporting the raised seedling container lifted by a lifting roller, and a transfer table for transportation is connected to the end of the transfer table for shipping (see Patent Document 1).

JP 2018-148864 A

In the above known example, all the transfer rollers and the lifting rollers are driven by a single motor, so there are problems in that the rotary transmission structure is complicated and the manufacturing and assembly costs are high.
Moreover, since this rotation transmission structure is complicated, there exists a subject that assembly and adjustment are not easy.
In the present application, the configuration of the lifting roller and the transport roller is devised to simplify the rotation transmission configuration, facilitate assembly, and allow the seedling containers to be stably stacked to facilitate the removal work. is.

In the invention of claim 1, an empty seedling-growing container A is supplied to a seeding transfer table 1, at least bed soil, seeds, and cover soil are supplied from above to the seedling-growing container A during transfer, and the seeded seedling-growing container A is sown. is transferred to a loading transfer table 15 provided at the end of the seeding transfer table 1, and the seedling container A transferred from the seeding transfer table 1 is pushed by the following seedling container A, and can be idly rotated by the one-way clutch 50. When the front end of the preceding seedling-raising container A comes into contact with the start sensor 45, the stacking motor M is energized to drive and rotate the idling transfer roller for fast forward transfer, Then, the pair of front and rear lifting rollers 20 are driven and rotated to start lifting, the fast-feeding start position is positioned in front of the stopper 44, and the preceding seedling-raising container A lifted by the lifting rollers 20 is supported by the supporting device 24 having the supporting member 25. Then, the succeeding seedling-growing container A is received under the supported preceding seedling-growing container A, lifted by a lifting roller 20, and this operation is repeated to take out the seedling-growing container A stacked in a predetermined number. is.
According to the second aspect of the invention, there is provided an unloading device for a seeded seedling container A, which is provided integrally or separately at the terminal end of a seeding transfer table 1 for sowing bed soil, seeds, etc. in an empty seedling container A. A plurality of transfer rollers 17 for conveying the seedling container A transferred from the seeding transfer table 1 are arranged on the transfer table 15 for seeding, and the sown seedling container A is lifted between the transfer rollers 17 arranged in parallel in front and behind. A pair of front and rear lifting rollers 20 rotating on a horizontal axis are provided, and a support device 24 having a support 25 capable of supporting a predetermined number of seedling containers A lifted by the lifting rollers 20 is provided, and one of a plurality of transfer rollers 17 arranged side by side. The transfer roller 17A and the lifting roller 20, which are idly rotatable by two one-way clutches 50, are driven by one stacking motor M, and the front end of the moved preceding seedling-raising container A comes into contact with the start sensor 45 and the stacking motor M. is energized to start the fast-forwarding driving rotation of the idling transfer roller and the lifting rotation of the lifting roller 20, and the rapid-feeding start position is located before the stopper 44 to form a raising seedling container stacking and extracting device.
The invention of claim 3 is a pick-out device for a sown seedling container A, which is provided integrally or separately at the terminal end of a seeding transfer table 1 for sowing bed soil, seeds, etc. in an empty seedling container A. The transfer table 15 includes a transfer roller 17 for transferring the seedling container A transferred from the seeding transfer table 1, a pair of front and rear lifting rollers 20 for lifting the seeded seedling container A, and a predetermined number of sheets lifted by the lifting roller 20. A support device 24 having a support 25 capable of supporting the seedling container A is provided, and the lifting roller 20 is rotated horizontally by a roller mounting shaft 22 in a direction crossing the conveying direction of the seedling container A to lift the sown seedling container A. A plurality of transfer rollers 17 are arranged side by side in the conveying direction, and the plurality of transfer rollers 17 are configured to freely rotate in the conveying direction of the seedling container A, and are provided between a pair of front and rear lifting rollers 20. Only the transfer roller 17 is an idling drive switching transfer roller 17A that can be switched between idling and drive rotation by the one-way clutch 50, and the idling drive switching transfer roller 17A is configured to drive and rotate when the seedling container A passes the start sensor 45. 2. The raising seedling container stacking/unloading device is configured such that the fast-feeding start position where the front end of the preceding raising seedling container A contacts the start sensor 45 is located in front of the stopper 44 .
According to the fourth aspect of the invention, the idling drive switching transfer roller 17A is provided between at least the pair of front and rear lifting rollers 20, and the idling drive switching transfer roller 17A transmits the rotation of the roller mounting shaft 22 of either the front or rear lifting roller 20. and the lifting roller 20 and the transfer roller 17 are driven by one motor M for stacking.
According to the fifth aspect of the invention, the starting sensor 45 for starting the rotation of the stacking motor M is provided on the downstream side of the idling drive switching transfer roller 17A in the conveying direction so that the position thereof can be adjusted back and forth.

In the first aspect of the invention, the seedling container A transferred from the seeding transfer table 1 is pushed by the subsequent seedling container A and moved on the transfer roller of the shipping transfer table 15 that can be idly rotated by the one-way clutch 50. , the transfer roller of the loading transfer table 15 can be configured by using the transfer force of the seedling container A of the seeding transfer table 1, the transmission structure can be simplified, and the transfer roller can be prevented from wearing and durable. In addition, when the preceding seedling-raising container A comes into contact with the start sensor 45, the transfer roller is driven and rotated by the stacking motor M. Since the lifting roller 20 and the transfer roller 17 can be driven and the transfer force of the seedling container A of the seeding transfer table 1 can be used, the rotation transmission between the lifting roller 20 and the transfer roller 17 can be simplified. Since the driving rotation of the lifting roller 20 is started while the seedling container A abuts against the stopper, the seedling container A can be lifted in order, the stacking attitude can be arranged, and the take-out work can be facilitated.
In the second aspect of the invention, one of the plurality of transfer rollers 17 arranged side by side, the idling drive switching transfer roller 17A and the lifting roller 20 are driven by one stacking motor M, thereby simplifying the transmission structure. Together with this, the cost can be reduced.
In the invention of claim 3, the plurality of transfer rollers 17 are configured to rotate freely in the conveying direction of the seedling container A, and only the idling drive switching transfer roller 17A provided between the pair of front and rear lifting rollers 20 is the seedling container. When A passes a predetermined position, it is configured to be driven and rotatable, so that the transfer rollers of the loading transfer table 15 can be configured using the transfer force of the seedling container A of the seeding transfer table 1, and the transmission structure can be simplified. can be done and the cost can be reduced.
In the fourth aspect of the invention, the idling drive switching transfer roller 17A that rotates is provided between the pair of front and rear lifting rollers 20, and the idling drive switching transfer roller 17A rotates the roller mounting shaft 22 of either the front or rear lifting roller 20. is transmitted, the transmission configuration can be simplified and the cost can be reduced.
In the fifth aspect of the invention, the start sensor 45 is provided on the downstream side of the idling drive switching transport roller 17A in the transport direction so that the front-rear position can be adjusted. It is possible to prevent contact between the raising seedling container A and the lifting roller 20 during movement, to align the stacking posture of the raising seedling container A, to facilitate the take-out work, and to transfer the lifting roller 20 in the standby state. Since it is not located above the upper surface of 17, it is possible to provide a good-looking stacking/unloading device that gives a sense of security to purchasers and workers, improves the added value of merchandise, and facilitates packing, transportation, and maintenance. , also contributes to product cost reduction.

Schematic diagram of a seeded seedling container conveying device. 1 is a perspective view of a stacking/unloading device; FIG. Same plan view. The same side view. The same side view and front view. Left and right longitudinal side views of the carriage showing the lifting rollers. The side view of the cam body of a roller mounting shaft. The front view of the state which piled up the raising seedling container. The side view and front view of the support body of a support apparatus, and an assembly state figure. Explanatory drawing of the stacked seedling container. Support state explanatory drawing of a seedling-growing container. Fig. 3 is a perspective view of a stacked seedling container; A transmission circuit diagram of another embodiment of the stacking and unloading device.

One embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a seeding transfer table for transferring bed soil, seeds, and cover soil to a seedling-growing container A. A bed soil supply device 2 for supplying bed soil to the seedling container A is provided, and a seed supply device 3 for supplying seeds to the seedling container A during transfer is provided on the downstream side of the bed soil supply device 2 in the transfer direction. A cover soil supplying device 4 for supplying cover soil to the seedling container A being transported is provided on the downstream side of the device 3 in the transport direction.
That is, on the seeding transfer table 1, in addition to the bed soil supply device 2 and the like, a rotating brush for leveling the bed soil and an irrigation device are provided so that seeds are sown in the seedling container A during transfer. All you have to do is
A loading/unloading device 10 is provided at the terminal end of the seeding transfer table 1 . The stacking/retrieving device 10 stacks the sown seedling containers A in an upward direction and retrieves a group A of the stacked seedling containers A stacked by a predetermined number of stages. Configure with

The transfer table for loading 15 may be configured integrally with the transfer table for seeding 1 or may be configured separately. .
It has a pair of frames 16 on the left and right sides of a transfer platform 15 for loading, and is placed on the floor by support legs 14 . A plurality of transfer rollers 17 are arranged in the transfer direction on the transfer table 15 for shipping. The transfer roller 17 is provided by mounting a transfer roller rotating shaft 18 on the frame 16 . All of the transfer rollers 17 are configured to freely rotate when receiving the seedling-growing container A from the seeding transfer table 1 to receive the preceding seedling-growing container A pushed by the following seedling-growing container A. The unit is driven and rotated by a stacking motor M that is energized when the preceding seedling-raising container A enters a predetermined position, and transfers the preceding seedling-raising container A to form a gap between it and the succeeding seedling-raising container A. Also, the stacking motor M drives the lifting roller 20 to lift the preceding seedling-growing container A upward.

The configuration of the lifting roller 20 for lifting the seedling container A is arbitrary. The roller mounting shaft 22 is configured to lift the sown seedling container A by rotating horizontally in a direction intersecting the conveying direction of the seedling container A, and both ends thereof are mounted on the frame 16 .
In this case, at least two rollers 20A of the lifting rollers 20 are arranged side by side at the tip of the arm 21, and a pair of left and right lifting rollers 20 are arranged side by side. By forming a space portion 20B into which a hand can be inserted and inserting a hand from the space portion 20B, it is possible to take out the stacked seedling-raising container A already supported by the support member 25 of the support device 24, which will be described later. Efforts are being made to facilitate and improve the efficiency of work in general.
Reference numeral 20C denotes a pair of left and right covers provided in front of the locus of movement of the lifting roller 20, forming a space 20B between the covers 20C.

A plurality of lifting rollers 20 are arranged side by side in the axial direction of the roller mounting shaft 22, and a pair of front and rear lifting rollers 20 are provided in the conveying direction, and in FIG. When the seedling-growing container A is lifted as it is, and the lifted seedling-growing container A is supported by the support body 25 of the support device 24 described later, the seedling-growing container A moves away from the bottom surface of the seedling-growing container A and lifts the next seedling container A. wait for
Although the transmission configuration to the lifting mechanism 19 is arbitrary, as an example, a lifting chain 29 is provided between an output gear 27 provided on the output shaft 26 of the stacking motor M and an arm gear 28 provided on the roller mounting shaft 22. to transmit the driving rotation of the stacking motor M (Figs. 3 and 5).
In this case, the stacking motor M is attached to a mounting portion 30 provided on the lower surface of the frame 16, the output gear 27 and the front and rear arm gears 28 are arranged in an inverted triangle, and the lifting chains 29 between the front and rear arm gears 28 are arranged. A tension gear 31 is meshed with the upper surface side of (FIG. 5).

The tension gear 31 is attached to the tip of the tension arm 32, and the base of the tension arm 32 is rotatably attached to the attachment portion 30 by the attachment shaft 33. As shown in FIG. When the tension gear 31 is moved downward with respect to the mounting portion 30, the lifting chain 29 is tightened, and when the tension gear 31 is moved upward with respect to the mounting portion 30, the lifting chain 29 is loosened.
In this case, the stacking motor M is attached to the mounting portion 30 so as to be vertically movable. Synchronous adjustment of height position is possible.
That is, when the stacking motor M (output gear 27) is moved upward with respect to the mounting portion 30 to loosen the lifting chain 29, the lifting chain 29A between the rear arm gear 28 and the output gear 27 is Although it is locked and does not move, by moving the tension gear 31 up and down with the adjusting bolt 31A, the lifting chain 29B from the rear arm gear 28 to the output gear 27 via the front arm gear 28 rotates the front arm gear 28. For example, when the tension gear 31 is lowered by the adjusting bolt 31A, the front arm gear 28 rotates counterclockwise in FIG. 5, and when the tension gear 31 is raised by the adjusting bolt 31A, The front arm gear 28 rotates clockwise.

Therefore, for example, if the front and rear lifting rollers 20 are placed in a substantially horizontal state, the height difference between the front and rear lifting rollers 20 can be easily visually recognized. When the tension gear 31 is moved up and down by the adjustment bolt 31A so that the heights are the same, the height positions of the front and rear lifting rollers 20 can be easily synchronized (synchronized) and adjusted. When the tension of the lifting chain 29 is adjusted by lowering M with respect to the mounting portion 30, the synchronous adjustment of the height positions of the front and rear lifting rollers 20 and the arm 21 and the tension adjustment of the lifting chain 29 are completed. do.

Of the plurality of transfer rollers 17 arranged side by side, a predetermined transfer roller 17 is an idling drive switching transfer roller 17A capable of switching between idling and drive rotation, and is provided between the front and rear lifting rollers 20 .
Therefore, until the seedling container A is conveyed to the idling drive switching transfer roller 17A, the idling drive switching transfer roller 17A is not driven, and the preceding seedling raising container A is pushed by the subsequent seedling raising container A on the idling drive switching transfer roller 17A. The idling drive switching transfer roller 17A, which has been conveyed and is idling, is switched to drive rotation, and is also used as a fast-feed roller for fast-forwarding the preceding seedling-growing container A relative to the succeeding seedling-growing container A.
The idling drive switching transfer roller 17A is provided with a plurality of rollers arranged side by side on the fast-feed roller rotating shaft 39, and a small-diameter passive gear 40 is fixed to the fast-feed roller rotating shaft 39. A rapid feed chain 42 is hung between the roller mounting shaft 22 and a large-diameter intermediate gear 41 to transmit the driving rotation of the stacking motor M.

As a result, the seedling container A can be transported to the start sensor 45, which will be described later, by utilizing the transport force of the subsequent seedling container A transported by the seeding transfer table 1, and the cost can be reduced with a rational configuration.
A start sensor 45 for starting the rotation of the stacking motor M is provided on the downstream side of the idling drive switching transfer roller 17A in the conveying direction (FIG. 3).
Therefore, the lifting roller 20 can be made to wait at a position below the upper surface of the transfer roller, contact between the raising seedling container A and the lifting roller 20 during movement can be prevented, and the stacking posture of the raising seedling container A can be aligned. In addition, since the lifting roller 20 in the waiting state is not positioned above the upper surface of the transfer roller 17, the stacking and taking-out device can be made to have a good appearance, and the added value of the merchandise can be improved. , which facilitates packaging, transportation and maintenance, and contributes to product cost reduction.

In this embodiment, a start sensor 45 for starting rotation of the stacking motor M is provided between the idling drive switching transfer roller 17A and the front lifting roller 20, and the front end of the preceding seedling container A is idling drive switching transfer roller 17A. The start sensor 45 activates the motor M for stacking while passing through and being supported by the idling drive switching transfer roller 17A, so that the seedling container A can be rapidly fed in a stable state and lifted by the lifting roller 20.
In this case, the front end of the seedling container A passes over the idling drive switching transfer roller 17A and then contacts the start sensor 45 to turn on the start sensor 45 and start driving the stacking motor M. The forward and rearward position of the start sensor 45 is adjustable so that the lifting roller 20 lifts the seedling container A after the container A is brought into contact with the stopper 44 provided at the end of the transfer platform 15 for shipping.

Therefore, even seedling containers A having different outer dimensions can be aligned and stacked against the stopper 44, the stacking posture can be stabilized, and the take-out operation can be facilitated.
The stopper 44 is formed by a vertical plate member, and makes line contact with the seedling container A to stop the transfer.
Therefore, when the seedling container A comes into contact with the stopper 44, mud is prevented from adhering to the stopper 44, and the movement stop position of the seedling container A can be stabilized, so that the stacking posture can be improved.
In addition, the front end of the seedling container A passes over the idling drive switching transfer roller 17A and then contacts the start sensor 45 to start driving the stacking motor M. In the present application, the one-way clutch 50, which will be described later, causes the idling drive switching transfer roller 17A to idle, and when the start sensor 45 starts driving the stacking motor M, the idling drive switching transfer roller 17A is driven to rotate. The seedling container A is configured to be fast-forwarded.

Therefore, since the raising seedling container A is conveyed by a plurality of transfer rollers 17 arranged in parallel, the lifting posture when the raising roller 20 lifts up the raising seedling container A can be stabilized.
In addition, after the seedling container A is passed over the rear lifting roller 20 of the plurality of transfer rollers 17 arranged side by side, only the lifting roller 20 and one idling drive switching transfer roller 17A need to be driven. 45 can be provided on the downstream side of the idling drive switching transfer roller 17A in the conveying direction, so that the rotation transmission mechanism can be simply constructed and the cost of the entire apparatus can be reduced.
In the other rotation transmission path diagram of FIG. 13, among the plurality of transfer rollers 17 arranged side by side, the transfer roller 17 on the upper side in the transfer direction of the rear lifting roller 20 is used as the idling drive switching transfer roller 17B. The rotation of the roller 17A is transmitted by the intermediate gear 40A, the intermediate gear 40B, and the chain 42A, and the start sensor 45 detects the rear idle drive of the pair of front and rear idle drive switching transfer rollers 17A and 17B on the upper side in the conveying direction. When provided on the downstream side of the transfer roller 17B in the conveying direction, the seeding and stacking processing capacity of the seeding transfer table 1 and the loading transfer table 15 of the stacking and unloading device 10 are improved, and the seedling container stacking that exhibits the above effects. It can be a take-out device.

A one-way clutch 50 is provided in the transmission path to the idling drive switching transfer roller 17A, and it is freely rotated until the start sensor 45 detects the seedling container A, and when the start sensor 45 detects the seedling container A, the one-way clutch 50 is driven. It is configured to rotate (Figs. 3 and 6).
Therefore, the idling drive switching transfer roller 17A rotates freely until the start sensor 45 detects the seedling container A, so that the raising seedling container A is smoothly conveyed to a predetermined position, and the raising mechanism of the raising seedling container A lifting mechanism. Ensure a rise by 19.
In addition, a transfer roller 17 is also provided in front of the rear lifting roller 20, but the front transfer roller 17 is not driven, and the transfer force of the succeeding seedling raising container A transferred by the seeding transfer table 1 is used. It can be transported to the start sensor 45, and the structure can be rationalized, and the cost can be reduced.

Thus, the support 25 of the support device 24 allows the raising of the raising seedling container A by the lifting roller 20, but holds the raising seedling container A once raised so as not to lower it. In the support 25, the base of the arm 60 is rotatably attached to the attachment portion 62 by the attachment shaft 61, and the upper portion of the arm 60 is formed with a support portion 64 for supporting the raised seedling container A (FIG. 9).
The support portion 64 is formed so as to be inclined toward the left-right center of the loading transfer table 15 as it goes upward.

The tip 64B of the support surface 64A passes under the lower surface of the raised seedling-raising container A, and the preceding seedling-raising container A drops onto the upper surface of the subsequent seedling-raising container A. In addition, if the support surface 64 is horizontal, the distance T between the vertex of the rotational locus Y centered on the mounting shaft 61 and the support surface 64A on which the seedling container A is placed is large, and the support 25 precedes accordingly. When retreating from the lower surface of the seedling-growing container A, the drop from the preceding seedling-growing container A to the upper surface of the succeeding seedling-growing container A increases in proportion to the distance T, and the sowing surface of the seedling-growing container A is disturbed by the vibration at the time of falling. In the present application, when the support surface 64A of the support portion 64 is inclined as shown in FIG. As a result, it is possible to suppress the occurrence of vibration when the tip portion 64B of the support surface 64A retreats from the bottom surface of the raised seedling-raising container A below the lower surface of the raised seedling-raising container A, and the seedling-raising container A is sown. Prevent the surface from being disturbed.

Further, the tip portion 64B of the support portion 64 is configured to be able to support the side ribs 64C provided on the side surface of the seedling container A when the support surface 64A is retracted from the bottom surface of the seedling container A (Fig. 10).
That is, since the support surface 64A of the support portion 64 is formed as an inclined surface, the bottom surface of the seedling-growing container A is supported by point contact at either the left or right of the support surface 64A. When the support surface 64A is retracted from the bottom surface of the preceding seedling-growing container A, the lower surface of the side rib 64C provided on the side surface of the seedling-growing container A is configured to abut on the tip portion 64B of the support portion 64 to provide support. To alleviate the shock when 64 retreats from the bottom surface of the seedling-growing container A, suppress the generation of vibration of the piled-up seedling-growing container A, and prevent the seeding surface of the seedling-growing container A from being disturbed.

In addition, the structure of the support body 25 is arbitrary, and in the embodiment, the arms 60 are respectively formed by a pair of front and rear vertical plate members, the upper edges of the arms 60 are formed on the support surfaces 64A, and the upper sides of the front and rear arm portions 60 are formed. The tip portions (connecting portions 64D) 64B of the front and rear arm portions 60 are connected by a shaft member, and the side ribs 64C are supported by the tip portions 64B (FIGS. 9 and 10). .
Alternatively, the support 25 may be manufactured by bending a plate member.
In addition, since the support portions 64 of the left and right support members 25 are inclined downward toward the center, when the succeeding seedling-raising container A is placed on the support portions 64 of the left and right support members 25, the slanted surfaces are used for unloading. The transfer table 15 is moved on the inclined surface toward the center of the left and right frames 16 by its own weight, and the left and right support bodies 25 are aligned with the center of the frame 16 so that the seedling containers A can be stacked and supported, thereby facilitating removal. do.

A retraction guide surface 65 is formed on the inner surface of the arm 60 below the support portion 64 so that the support 25 is retracted and rotated outward by contact with the rising seedling container A. As shown in FIG.
A spring 66 is provided between the arm 60 and the mounting portion 62 side (shipping transfer stand 15/frame 16) to urge the support 25 so as to protrude toward the center between the left and right frames 16 at all times (Fig. 9).
A stopper projection 67 projecting upward is provided on the outer side of the upper portion of the arm 60, and a spring 66 contacts the upper portion of the mounting portion 62 to restrict the inward rotation of the arm 60 and hold the support 25 at the supporting position.
The support 25 is always urged by the spring 66 so as to rotate toward the center of the shipping transfer table 15, and is brought into contact with the stopper projection 67 of the mounting portion 62 to stand by at the support position. rises and comes into contact with the retraction guide surface 65, it rotates outward and retracts from the seedling-growing container A, and when the bottom surface of the seedling-growing container A passes the upper end of the retraction guide surface 65, it rotates inward due to the spring elasticity of the spring 66. Then, the support part 64 is positioned below the bottom surface of the seedling-growing container A to support it, preventing the raised seedling-growing container A from descending.

Further, the tip position of the support portion 64 of the support body 25 is positioned outside the rotational locus Z of the lifting roller 20 in plan view (FIG. 3).
Therefore, it is possible to avoid interference between the rotational trajectory Z of the lifting roller 20 and the tip position of the support portion 64 of the support 25, and there is no restriction on the movement of the support 25 in the conveying direction. The support 25 can be arranged at a predetermined front and rear position, and the stacking posture of the seedling-growing container A by the support 25 can be improved.
In the embodiment, the mounting shaft 61 is welded and fixed to the base of the arm 60, and the mounting portion 62 is divided into front and rear portions. In this state, the divided mounting members 62A are connected by bolts 62B to be integrated, and mounted on the frame 16 of the unloading transfer table 15 so that the position thereof can be freely adjusted in the longitudinal and lateral directions (FIG. 9).

Therefore, manufacturing errors of the frame 16 of the transfer table for shipping 15 and the support 25 of the support device 24 can be absorbed and installed, and the stacked seedling containers A can be stably and reliably supported.
A cam body 70 is provided on the roller mounting shaft 22 of the lifting roller 20 , and a stacking stop switch 71 is provided near the cam body 70 . When the stacking motor M is energized, the preceding seedling-raising container A is supported by the support member 25 and the lifting roller 20 returns to the standby position. , the notch 74 is fitted, and the energization to the stacking motor M is cut off.

FIG. 7 shows a state in which the connection terminal 72 of the stacking stop switch 71 is fitted with the notch 74 on the outer peripheral surface of the cam body 70 .
In addition, at a predetermined position of the frame 16 of the transfer table 15 for shipping, a stacking detection switch 75 is provided to detect that the seedling containers A are stacked on the support 25 by a predetermined number of layers. When this is detected, power to the seeding transfer table 1 is cut off.

(Action of Embodiment)
The starting end of the loading transfer table 15 of the stacking/unloading device 10 is connected to the terminal end of the seeding transfer table 1 that supplies soil, seeds, etc. to the empty seedling container A.
Next, an empty seedling-growing container A is supplied to the starting end of the seeding transfer table 1, and the seedling-growing container A being transferred is supplied with bed soil below the bed soil supply device 2, is watered, and is watered. Seeds are supplied below the , and cover soil is supplied below the soil supply device 4 .
The seedling container A that has been seeded and transferred to the end of the seeding transfer table 1 is transferred onto the transfer roller 17 of the loading transfer table 15 of the stacking/unloading device 10, and is pushed by the succeeding seedling container A into a free rotating state. It moves on the transfer roller 17 as it is and contacts the start sensor 45 .

When the seedling container A comes into contact with the start sensor 45, the stacking motor M is energized to drive and rotate the idling drive switching transfer roller 17A to rapidly feed and convey the seedling container A, forming a gap between it and the following seedling container A. At the same time, the lifting roller 20 is driven and rotated to raise the preceding seedling-growing container A until the support 25 supports it.
When the seedling container A is lifted by the lifting rollers 20, the support 25 pushes the guide surface 29 outward by the seedling container A rising against the elasticity of the spring 31, and the support 25 rotates outward to lift the seedling container A. When the bottom surface of the raising seedling container A passes the upper end of the guide surface 29, the support surface 30 slips under the bottom surface of the raising seedling container A to support and wait.

When the preceding seedling-growing container A is supported by the support member 25, the notch 74 on the outer peripheral surface of the cam body 70 enters the connection terminal 72 of the stacking stop switch 71, and the power to the stacking motor M is cut off.
While the preceding seedling-growing container A is supported by the support 25, the succeeding seedling-growing container A is transferred from the terminal end of the seeding transfer table 1 onto the transfer roller 17 of the loading transfer table 15 of the stacking/unloading device 10, and is transferred onto the transfer roller. 17 to contact the start sensor 45, the start sensor 45 energizes the stacking motor M, drives and rotates the idling drive switching transfer roller 17A, and transfers the seedling container A at a rapid rate, and transfers the seedling container A to the following seedling container A. At the same time as forming an interval between them, the lifting roller 20 is rotated to lift the second seedling container A.

When the second seedling container A is lifted by the lifting roller 20, the guide surface 29 is pushed outward by the second seedling container A rising against the elasticity of the spring 31, and the support 25 is rotated outward. Then, the upper surface of the second seedling-growing container A is pressed against the lower surface of the first seedling-growing container A, and the lifting roller 20 lifts the seedling-growing container A while the two layers are stacked. When the bottom surface of the container A passes the upper end of the guide surface 29, it rotates inward due to the elasticity of the spring 31, and the support surface 30 slips under the bottom surface of the second raising seedling container A and supports it.
When the second seedling container A is supported by the support 25, the notch 74 on the outer peripheral surface of the cam body 70 enters the connection terminal 72 of the stacking stop switch 71, and the power to the stacking motor M is cut off. Stacking ends.

In this way, the seeded seedling containers A sown on the seeding transfer table 1 repeat the above operation to stack the seedling containers A in a predetermined number of stages, and the seedling containers A stacked in a predetermined number of stages are unloaded by hand as appropriate. It is taken out from the transfer table 15 for use.
When a predetermined number or more of the seedling containers A are piled up on the support 25, the pile detection switch 75 detects this and stops the seeding transfer table 1. As shown in FIG.

DESCRIPTION OF SYMBOLS 1... Sowing transfer table, 2... Bed soil supply apparatus, 3... Seed supply apparatus, 4... Cover soil supply apparatus, 10... Stacking/unloading apparatus, 15... Transfer table for loading, 16... Frame, 17... Transfer roller, 17A... Idling drive switching transfer roller (front idle driving switching transfer roller), 17B... Idling drive switching transfer roller (rear idle driving switching transfer roller), 19... Lifting mechanism, 20... Lifting roller, 21... Arm, 22... Roller mounting shaft , 20A Roller 20B Space 20C Cover 23 Guide member 24 Support device 25 Support 26 Motor output shaft 27 Output gear 28 Arm gear 29 Lifting chain , 30... Mounting part 31... Tension gear 32... Tension arm 33... Mounting shaft 39... Rapid feed roller rotating shaft 40... Passive gear 40A, 40B... Intermediate gear 41... Intermediate gear 42... Rapid feed chain, 42B Chain 45 Starting sensor 50 One-way clutch 60 Arm 61 Mounting shaft 62 Mounting portion 62A Mounting member 62B Bolt 64 Supporting portion 64A Supporting surface 64B Tip Part, 64C... Side rib, 65... Retraction guiding surface, 66... Spring, 67... Stopper projection, 70... Cam body, 71... Stacking stop switch, 74... Stacking detection switch, M... Motor for stacking.

Claims (5)

An empty seedling-growing container A is supplied to the seeding transfer table 1, at least bed soil, seeds, and cover soil are supplied from above to the seedling-growing container A being transferred, and the sown seedling-growing container A is placed on the seeding transfer table 1. The seedling container A transferred from the sowing transfer table 1 is pushed by the following seedling container A, and the transfer roller of the shipping transfer table 15 that can be idly rotated by the one-way clutch 50. When the front end of the preceding seedling-raising container A that has moved up and comes in contact with the start sensor 45, the stacking motor M is energized to drive and rotate the idling transfer rollers for fast forward transfer, and a pair of front and rear lifting rollers. 20 is driven to rotate to start lifting, the fast-feeding start position is set before the stopper 44, and the preceding seedling-raising container A lifted by the lifting roller 20 is supported by a support device 24 having a support 25, and is supported by this support. A method for stacking and taking out seedling containers A in which a succeeding seedling growing container A is received under a preceding seedling growing container A, lifted by a lifting roller 20, and this operation is repeated to take out a predetermined number of stacked seedling growing containers A. In the unloading device for the seeded seedling container, which is provided integrally or separately at the terminal end of the seeding transfer table 1 for sowing bed soil, seeds, etc. in the empty seedling container A, the unloading transfer table 15 of the unloading device includes: A plurality of transport rollers 17 for transporting the seedling container A transferred from the seeding transfer table 1 are arranged side by side, and a pair of front and rear horizontal shafts rotate to lift the seeded seedling container A between the plurality of transfer rollers 17 arranged in parallel in the front and back. A lifting roller 20 is provided, and a support device 24 having a support body 25 capable of supporting a predetermined number of seedling containers A lifted by the lifting roller 20 is provided, and one of the transfer rollers 17 arranged side by side can be idled by a one-way clutch 50. The transfer roller 17A and the lifting roller 20 are driven by one stacking motor M, and the front end of the moved preceding seedling-raising container A comes into contact with the start sensor 45, energizing the stacking motor M, and idling. A raising seedling container stacking and extracting device in which the fast-forwarding drive rotation of the transfer roller and the lifting rotation of the lifting roller 20 are started, and the fast-forwarding start position is located in front of the stopper 44. In the unloading device for the seeded seedling container, which is provided integrally or separately at the terminal end of the seeding transfer table 1 for sowing bed soil, seeds, etc. in the empty seedling container A, the unloading transfer table 15 of the unloading device includes: A transport roller 17 for transporting the seedling container A transferred from the seeding transfer table 1, a pair of front and rear lifting rollers 20 for lifting the sown seedling container A, and a predetermined number of the seedling containers A lifted by the lifting rollers 20 can be supported. A support device 24 having a support 25 is provided, and the lifting roller 20 is configured to rotate horizontally by a roller mounting shaft 22 in a direction crossing the conveying direction of the seedling container A to lift the sown seedling container A, and a transfer roller. A plurality of transfer rollers 17 are arranged side by side in the conveying direction, and the plurality of transfer rollers 17 are configured to rotate freely in the conveying direction of the seedling container A, and only the transfer roller 17 provided between the pair of front and rear lifting rollers 20 is a one-way clutch. The idling drive switching transfer roller 17A that can switch between idling and driving rotation by 50 is provided, and the idling drive switching transfer roller 17A is configured to drive and rotate when the seedling container A passes the start sensor 45. A raising seedling container stacking and extracting device in which the fast-feeding start position where the front end contacts the start sensor 45 is located in front of the stopper 44 . In claim 2 or claim 3, the idling drive switching transfer roller 17A is provided between at least a pair of front and rear lifting rollers 20, and the idling drive switching transfer roller 17A rotates the roller mounting shaft 22 of one of the front and rear lifting rollers 20. is transmitted, and the lifting roller 20 and transfer roller 17 are driven by one motor M for stacking. In claim 4, the start sensor 45 for starting the rotation of the stacking motor M is provided on the downstream side of the idling drive switching transfer roller 17A in the conveying direction so that the position thereof can be adjusted back and forth.

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