JP2017063623A - Seedling system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling system that prevents a sudden fall of a seedling box.SOLUTION: The present invention provides a seedling system that comprises a stowage device (118) forming a cluster of stack seedling boxes (Cβ) by stacking a next stack seedling box on previously transformed stack seedling boxes (Cα) when repeating a movement of grasping the stack seedling boxes (Cα) formed by stacking a plurality of seedling boxes (C) with a pair of oppositely arranged holding claws (164a, 164b). When the stowage device stacks the stack seeding boxes (Cα), one holding claw (164a) of the pair of the holding claws (164a, 164b) grasping the stack seeding boxes (Cα) is detached away from the stack seeding boxes (Cα) before the other holding claw (164b) is detached.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a seedling raising system.

  2. Description of the Related Art Conventionally, a seedling raising system including a stacking device that repeats a plurality of operations of stacking seeded seedling boxes in a seeding facility or a seedling facility is known.

  In such a conventional stacking apparatus, for example, the stacked seedling boxes (for example, 10 pieces) are moved onto the stacking arms, and a pair of holding arms arranged opposite to each other are opened, and stacked in a predetermined position. There is known a configuration in which predetermined seedling boxes (for example, 30 sheets) are stacked by repeating the attaching operation (for example, three times) (for example, see Patent Document 1).

JP 2012-95547 A

  However, such a conventional loading apparatus is configured to open the pair of holding arms at the same time and drop the stacked seedling boxes to a predetermined position, so that there is a problem that the seedling box drops suddenly. . Thereby, for example, the soil in the nursery box is generated.

  Note that the same problem as described above also occurs when a pair of holding arms are opened simultaneously to drop a single seedling box into a predetermined position.

  An object of the present invention is to provide a seedling raising system that prevents a sudden drop of a seedling box in consideration of such problems of the conventional seedling raising system.

In order to achieve the above object, the first present invention provides:
When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, A stacking device (118) for stacking the next seedling box (C) or the staged stacking seedling box (Cα) on the seedling box (C) or the staged stacking seedling box (Cα) that has already been transferred to a predetermined position. )
The pair of holding claws (164a) for holding the seedling box (C) or the staged stacking seedling box (Cα) when the stacking apparatus stacks the seedling box (C) or the staged stacking seedling box (Cα). 164b), one of the holding claws (164a) is separated from the seedling box (C) or the staged stacking seedling box (Cα) before the other holding claws (164b). It is a nursery system.

The second aspect of the present invention
When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, A stacking device (118) for stacking the next seedling box (C) or the staged stacking seedling box (Cα) on the seedling box (C) or the staged stacking seedling box (Cα) that has already been transferred to a predetermined position. )
In the seedling raising system, the upper surface or the lower surface of the pair of holding claws (164a, 164b) facing each other is inclined toward the tip in a side view.

The third aspect of the present invention
When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, A stacking device (118) for stacking the next seedling box (C) or the staged stacking seedling box (Cα) on the seedling box (C) or the staged stacking seedling box (Cα) that has already been transferred to a predetermined position. )When,
A position detector (302, 303) for directly or indirectly detecting the position in the height direction of the holding claws (164a, 164b);
Release the holding of the seedling box (C) or the staged stacking seedling box (Cα) with respect to the loading device (118) after a predetermined time has elapsed since the position detection unit (302, 303) detected the position. A controller (110a) for issuing a release command to
The control unit (110a) is a seedling raising system characterized in that the predetermined time can be adjusted.

The fourth aspect of the present invention is
When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, The next seedling box (C) or the stacked seedling box (Cα) is stacked on the seedling box (C) or the stacked seedling box (Cα) that has already been transferred to a predetermined position, and the stacked seedling box is stacked. A loading device (118) forming a group (Cβ);
An interval detection unit that detects an interval in the height direction between the holding claws (164a, 164b) and the seedling box (C) or the stacked seedling box (Cα) that has already been transferred to the predetermined position;
When the holding claws (164a, 164b) are moved downward and it is determined that the interval detected by the interval detection unit has reached a predetermined interval, the seedling box (C) or the staged stacking seedling box (Cα) And a controller (110a) for issuing a release command for releasing the grip of
The said control part (110a) is a seedling raising system characterized by the said adjustment of the said predetermined space | interval being possible.

The fifth aspect of the present invention provides
A stacking device (117) for stacking a plurality of the seedling boxes conveyed by the seedling box transport conveyor (103) to prepare the stacked product seedling boxes (Cα);
The stacking device (118) stacks the next stacked seedling box (Cα) on the stacked seedling box (Cα) that has already been transferred to the predetermined position, and the stacked product seedling box group (Cβ). A device that forms
A transfer device (119, 120) for transferring the stage stacking seedling box group (Cβ) stacked by the stacking device (118) to a predetermined transfer position;
A soil removal device for removing the soil placed on the transfer device (119, 120) or the attached soil;
The seedling raising system according to any one of the first to fourth aspects, wherein the seedling raising system is provided.

The sixth aspect of the present invention provides
The stacking device (117) has a stacking guide member (180, 190) that contacts a side portion of the seedling boxes to be stacked and holds the posture of the stacked seedling boxes. And
The stacking guide members (180, 190) are configured to be retractable out of the transfer path when the loading device (118) grips and transfers the stacking seedling box to the predetermined position. It is the seedling raising system of the said 5th this invention characterized by the above-mentioned.

The seventh aspect of the present invention
The said stacking apparatus (117) is a seedling raising system of the said 5th or 6th this invention characterized by changing the number of the said seedling boxes to pile up.

In addition, the eighth aspect of the present invention
A nursery box transshipment device (143) for taking out the nursery box from the stage stacking nursery box group stacked by the loading device (118) and stacking it on a shelf of a carriage;
The nursery box transshipment device (143)
A transshipment transport device (145) for transporting the seedling box taken out from the staged seedling box group;
Extrusion devices (160a, 160b) for extruding the seedling box conveyed by the transshipment conveying device (145) toward the shelves of the carriage;
Regulation which has a contact part (173) which can contact the side of the seedling box pushed out toward the shelf by the extrusion device (160a, 160b) and regulates the stop position of the seedling box by the contact part Devices (171a, 171b, 172a, 172b),
In the seedling raising system according to any one of the fifth to seventh aspects of the present invention, the contact portion (173) is configured to be retractable outside a movement path of the carriage.

  According to the first aspect of the present invention, for example, it is possible to prevent a sudden drop of the nursery box (C) or the multi-stage nursery box (Cα) due to the opening operation of the pair of holding claws (164a, 164b), and It can be prevented. In addition, in the case where the next seedling box (C) or the stacking seedling box is loaded on the seedling box (C) or the stacking seedling box that is already in a predetermined position, the seedling box (C) or the stacking seedling box One holding claw (164a) side is first aligned with the seedling box (C) or the stacking seedling box already in a predetermined position, and the other holding claw (164b) in the seedling box (C) or the stacking seedling box afterwards Since the side can be adjusted to the seedling box (C) or the stacking seedling box that is already in the predetermined position, the next seedling box (C) is placed on the seedling box (C) or the stacking seedling box that is already in the predetermined position. Or the position shift at the time of stacking a stacking seedling box can be prevented, and the loading posture of the seedling box (C) or the stacking seedling box (Cα) becomes good.

  According to the second aspect of the present invention, for example, it is possible to prevent a sudden drop of the nursery box (C) or the multi-stage nursery box (Cα) due to the opening operation of the pair of holding claws (164a, 164b), and the soil in the nursery box can be reduced. It can be prevented. In addition, when the next seedling box (C) or the stacking seedling box is to be stacked on the seedling box (C) or the stacking seedling box that is already in a predetermined position, the next seedling box (C) or the stacking seedling Since the box, or the seedling box (C) or the stacking seedling box that is already in the predetermined position, is difficult to move laterally (difficult to move) by the opening operation of the holding claws, the next seedling box (C) or the stacking seedling box And the position shift with the seedling box (C) or the stacking seedling box which is already in the predetermined position can be prevented, and the loading posture of the seedling box (C) or the stacking seedling box (Cα) becomes good.

  According to the third aspect of the present invention, for example, the impact of a sudden drop of the seedling box (C) or the multi-stage seedling box (Cα) due to the opening operation of the pair of holding claws (164a, 164b) can be suppressed. Can prevent the position of the next seedling box (C) or the stacking seedling box and the seedling box (C) or the stacking seedling box that is already in the predetermined position. Or the loading attitude | position of a stage-stacking seedling box (C (alpha)) becomes favorable.

  According to the fourth aspect of the present invention, for example, it is possible to suppress an impact of a sudden drop of the nursery box (C) or the multi-stage nursery box (Cα) due to the opening operation of the pair of holding claws (164a, 164b). Can prevent the position of the next seedling box (C) or the stacking seedling box and the seedling box (C) or the stacking seedling box that is already in the predetermined position. Or the loading attitude | position of a stage-stacking seedling box (C (alpha)) becomes favorable.

  According to the fifth aspect of the present invention, it is possible to prevent deterioration of the loading posture of the stacked seedling box (Cβ) on the soil transfer device (119, 120). In addition, it is possible to prevent malfunction (unsuitable speed change, vibration, etc.) of the transfer device (119, 120) due to soil. Accordingly, it is possible to improve the transfer accuracy of the stacked seedling box group.

  According to the sixth aspect of the present invention, the stacking guide members (180, 190) retreat out of the transfer path, so that the stacking device (118) does not have to move the stacking seedling box to a high level and then move it sideways. As a result, it is possible to prevent deterioration of the stacking posture of the stacking seedling box (Cα) and improve work efficiency. In other words, in order to accurately guide the seedling boxes to be stacked, the vertical width (height) of the stacking guide member can be increased, and the stacking posture of the seedling boxes can be improved.

  The seventh aspect of the present invention can cope with various seedling boxes, seedling conditions, loading conditions, and the like.

  According to the eighth aspect of the present invention, the nursery box (C) can be properly pushed into the cart shelf, and the nursery box stacked on the cart is a structure (eg, a frame or the like) of the nursery box transfer device (143). ) Can be prevented. Further, since the extrusion devices (160a, 160b) can be operated at high speed, the work efficiency can be improved.

Plan layout diagram of sowing seedling raising facility as an example of the seedling raising system of the present invention Whole side view of seeding equipment of this embodiment Plan view of stacking / loading / transfer equipment of this embodiment Side view of the stacking / loading / transfer equipment of this embodiment (A): Front view of stacking / loading / transfer equipment of this embodiment, (b): First provided at the tip of a pair of movable arms facing each other of the loading device of this embodiment. An enlarged front view of the second holding claw of the holding claw and the second holding claw (A): Front view showing a state in which the seedling box has been transported by the seedling box transport conveyor to the stacking apparatus of the present embodiment, (b): side view of the stacking apparatus shown in FIG. 6 (a), (C): Front view showing a state where the seedling box is lifted by the stacking apparatus of the present embodiment, (d): Side view of the stacking apparatus shown in FIG. 6 (c), (e): This embodiment The front view which shows the state by which the seedling box lifted by the stacking apparatus of the form is supported above the seedling box conveyance conveyor, (f): Side view of the stacking apparatus shown in FIG.6 (e) (A)-(c): Schematic for demonstrating the 1st stacking guide member as an example of the stacking guide member of embodiment of this invention. (A)-(c): Schematic for demonstrating the 2nd stage product guide member as another example of the product guide member of embodiment of this invention. (A)-(c): Schematic perspective view for demonstrating the transfer path | route of the stacking seedling box in the loading apparatus of this Embodiment (A): Perspective view showing a situation where the stacked seedling box group in this embodiment is placed on the placing table at the placing position on the back side of the budding carriage, (b): the step in this embodiment The perspective view which shows the condition which mounts the growth seedling box group on the mounting base of the mounting position on the near side of the budding trolley, (c): in this embodiment, the four mounting positions in the front, rear, left and right of the budding trolley. The perspective view which shows the condition where the stage pile seedling box group is mounted on the mounting stand of Side view of seedling box transshipment device in the present embodiment The top view of the seedling box transshipment apparatus in this Embodiment (A)-(c): Explanatory drawing which shows the procedure which puts the immersion container for net bags in 2 steps | paragraphs in this Embodiment, and puts it in an immersion seed tank, (d): Expansion of the S section of Fig.13 (a) Figure Side view of seed vat dehydrator in the present embodiment Schematic plan view of the loading mechanism using the second loading device that loads directly on the pallet

  Hereinafter, an embodiment of the seedling raising system of the present invention will be described with reference to the drawings.

  FIG. 1 is a plan layout view of a sowing and breeding facility as an example of the seedling raising system of the present invention, and FIG. 2 is an overall side view of the sowing facility 102.

  The seedling raising facility shown in FIG. 1 has a seedling box storage on the second floor, and the seedling box C of the seedling box storage is sequentially supplied one by one to the seeding equipment 102 installed on the first floor by the seedling box supply device 101. The

  The sowing facility 102 shown in FIG. 2 is configured to put floor soil in the seedling box C in order from the upstream side to the downstream side along the seedling box transport conveyor 103 that transports the seedling box C in a certain direction, and suppresses and levels the soil. There are provided a floor soil supply device 104, a paddy rice irrigation device 105, a seeding device 106 for sowing seeds on the floor soil, a soil covering supply device 107 for covering soil, and a vegetable irrigation device 108.

  Note that a leveling unit 109 for leveling the floor soil supplied to the seedling box C is provided on the lower side of the seedling box transporting side of the floor soil supply device 104. In addition, when sowing vegetable seeds, the irrigation device 108 for vegetables is operated, and the soil is covered with the soil covering supply device 107 and then watered.

  The seedling box C that has been sowed by the sowing facility 102 is transferred with a predetermined number of seedling boxes on the pallet or the emergence carriage 111 by the stacking / loading / transfer facility 110. Then, the seedling boxes stacked on the pallet or the emergence carriage 111 are carried into the emergence chamber 112 and germinated. The stacked seedling boxes sprouted in the budding room 112 are stacked on the greening cart 146 by the seedling box transfer device 143 (see FIG. 12), and the greening cart 146 is carried into the greening chamber 200 where the temperature is controlled, and is sent to the predetermined place. Raise seedlings until they grow to the size of The budding chamber 112 and the greening chamber 200 are each provided with three chambers.

  Further, in the sowing and seedling facility shown in FIG. 1, the seed pod that automatically supplies seed pods from the seed pod container 114 (see FIG. 1) to the sowing apparatus 106 as the seed pods stored in the sowing apparatus 106 of the sowing equipment 102 decrease. A supply conveyor 115 is provided.

  A plurality of seed water tanks 116 (for example, five) are provided in the sowing seedling raising facility, and seed seed containers 114 in a state in which seed seeds are accommodated are submerged in the soaked water tanks 116 filled with water, sowing seeds and sprouting seeds. Then, the seed is supplied to the sowing device 106. The water supplied to the seed water tank 116 is electrolyzed water (disinfectant) generated by electrolysis, and seeds are also disinfected in this soaking process.

  Therefore, the soaking water tank 116 constitutes soaking equipment and seed disinfection equipment. Strong acidic water and strong alkaline water generated as the electrolyzed water are stored in an acidic water tank 201 and an alkaline water tank 202 provided in a common greening chamber 200 to maintain a desired temperature (see FIG. 1). ). The water supplied to the immersion water tank 116 can be appropriately selected from strong acidic water or strong alkaline water according to the amount of storage in the tanks 201 and 202. Ideally, strong alkaline water is distributed and supplied, and when the soaking process is completed, the strongly acidic water and strong alkaline water in each soaking tank 116 are mixed and neutralized, and the neutralized water is drained. is there. The sowing and seedling facility is also provided with a germination facility 204 that can accommodate the seed vat container 114, and seeds can be germinated in the seed vat container 114.

  Next, the stacking / loading / transfer equipment 110 will be described with reference to FIGS.

  3 is a plan view of the stacking / loading / transfer facility 110, FIG. 4 is a side view of the stacking / loading / transfer facility 110, and FIG. It is a front view of the loading and transfer equipment 110.

  FIG. 5B shows a second holding claw out of the first holding claw 164a and the second holding claw 164b provided at the distal ends of a pair of movable arms 126a and 126b facing a loading device 118 described later. It is an enlarged front view of 164b. The first holding claw 164a and the second holding claw 164b have the same shape.

  As shown in FIGS. 3 to 5, the stacking / loading / transfer equipment 110 is arranged at the end of the seedling box transport conveyor 103 and is transported one by one by the seedling box transport conveyor 103. A stage stacking device 117 that forms a stage stacking seedling box Cα by lifting C from below and stacking up to a predetermined number (for example, 10 sheets), and a stage stacking seedling box Cα stacked by the stage stacking apparatus 117 A stacking device 118 that grips together, laterally moves in a direction parallel to the X axis (see FIG. 4), and stacks at a predetermined position of the stacking arm 119 to form a stage stack seedling box group Cβ; A stacking arm 119 on which the stage stacking seedling box Cα is stacked a predetermined number of times (for example, twice) by the stacking device 118 and the stacking arm 119 on which the stage stacking seedling box group Cβ is formed are parallel to the Z axis. (See Fig. 5 (a)) and move in the vertical direction and parallel to the Y axis (see Fig. 5 (a)). And a transfer mechanism 120 for transferring the stage stacking seedling box group Cβ collectively to a predetermined position on the budding carriage 111.

  Further, as shown in FIG. 3, the stacking / loading / transfer facility 110 includes a control unit 110a for controlling various operations by the stacking / loading / transfer facility 110, and the type of the seedling box C (the seedlings depending on the type). A control box 110b that houses an operation panel (not shown) for setting various initial values such as the number of stacked boxes and the number of times of stacking.

  Further, in the case where the stacking device 118 forms the stage stacking seedling box group Cβ by performing the work of stacking the stage stacking seedling box Cα a plurality of times at the same position on the stacking arm 119, the control panel includes: The setting for making the number of seedling boxes to be stacked by the stacking device 117 different in the course of the multiple stacking operations is also possible. For example, in the case of the stacking / loading / transfer equipment 110, the worker uses the control panel to perform the first time when forming a total of 35 stacking seedling box groups Cβ in three stacking operations. The number of staged seedling boxes Cα in the stacking of 10 is set to 10, the number of staged seedling boxes Cα in the second stacking is set to 12, and the number of staged seedling boxes Cα in the third stacking is set. The number of sheets can be set to 13.

  Moreover, it is good also as a structure which sets the number of the stacking seedling box C (alpha) in one stacking. For example, in the case where the formation of the stacking seedling box group Cβ is performed by three times of stacking operations, the number of the stacking seedling box Cα in one stacking is set to 10 using the control panel. A total of 30 stacked seedling box groups Cβ is formed by three times of stacking, and when the number of stacked seedling box Cα is set to 15 in one stacking, a total of 45 is totaled for 45 times. A plate stacking seedling box group Cβ is formed.

  In addition, the number of stacked seedling box groups Cβ obtained by the stacking operation and the number of stacked seedling box seeds Cα in one stacking are set, and linked to the setting of the number of stacked stack seedling boxes Cα. The number of times of stacking may be set automatically. For example, if the total number of stacked seedling box Cβ is set to 30 and the number of stacked seedling boxes Cα is set to 10, the number of stacking is automatically set to 3 times, and the stacked seedling box If the total number of groups Cβ is set to 30 and the number of staged stacking seedling boxes Cα is set to 15, the number of stacking is automatically set to 2 and the number of staged stacking seedling box groups Cβ is counted. When 40 sheets are set and the number of stacked seedling boxes Cα is 15, the number of stacking is automatically set to 3 times, and the number of stacked seedling boxes Cα is set in the first and second stacks. In the final (third) stacking, the remaining number (10 sheets) necessary for the number of the stacked seedling box group Cβ is stacked.

  Thereby, in this Embodiment, the number of the seedling boxes which form the stacking seedling box group C (beta) can be changed. In addition, the setting of the number of seedling boxes forming the stacking seedling box group Cβ is facilitated.

  Therefore, it can respond to various seedling boxes, seedling conditions, and loading conditions.

  The configuration including the loading arm 119 and the transfer mechanism 120 of the present embodiment corresponds to an example of the transfer device of the present invention.

  Next, the above-described stacking device 117 will be further described with reference to FIGS. 6 (a) to 6 (f).

  FIG. 6A is a front view showing a state in which the seedling box C has been transported to the stacking device 117 by the seedling box transport conveyor 103, and FIG. 6B shows the stage shown in FIG. 6A. It is a side view of the product apparatus 117.

  FIG. 6C is a front view showing a state where the seedling box C is lifted by the stacking device 117, and FIG. 6D is a side view of the stacking device 117 shown in FIG. 6C. .

  FIG. 6 (e) is a front view showing a state where the seedling box C lifted by the stacking device 117 is supported above the seedling box transport conveyor 103, and FIG. 6 (f) is a diagram of FIG. 6 (e). It is a side view of the stacking apparatus 117 shown in FIG.

  In FIG. 6B, FIG. 6D, and FIG. 6F, the drive cam 124 that rotates integrally with the rotation shaft 123 of the eccentric cam 121 on the right side in the drawing is omitted.

  That is, the stacking device 117 comes into contact with the bottom surface of the seedling box C conveyed by the seedling box transport conveyor 103 and lifts the seedling box C (see FIGS. 6A to 6D). The support plate 122 supports the edge of the nursery box C lifted by the eccentric cam 121 (see FIGS. 6E and 6F).

  Eccentric cams 121 are discs driven by eccentric rotating shafts 123, and a total of four eccentric cams 121 are provided on the front, rear, left and right of the raising seedling box C (see FIGS. 6 (a) and 6 (b)). The four eccentric cams 121 are driven and rotated in the same phase (see the clockwise arrow in FIG. 6B) and simultaneously lift the nursery box C (see FIGS. 6C and 6D). Two support plates 122 are provided on the left and right sides, and are urged to the left and right by springs, and are pushed by the protrusions 124a of the drive cam 124 by driving the drive cam 124 that rotates integrally with the rotating shaft 123 of the eccentric cam 121. It moves toward the seedling raising box C side (right and left inner side) (see FIG. 6A, FIG. 6B, FIG. 6E, and FIG. 6F). Therefore, the support plate 122 is configured to move from the left and right outer sides toward the seedling box C side (left and right inner sides) and project below the edge of the seedling box C.

  The stacking device 117 repeats the above operation every time the seedling box C is transported by the seedling box transport conveyor 103.

  As a result, the seedling boxes C conveyed one by one on the seedling box transport conveyor 103 are lifted from below the seedling boxes C already supported on the support plate 122 of the stacking device 117, and a predetermined number (for example, 10).

  Further, the stacking device 117 is provided with a stacking guide member that contacts the downstream side portion of the stacked seedling boxes C and holds the posture of the stacked seedling boxes Cα vertically.

  Hereinafter, the stacked product guide member will be described with reference to FIGS. 7A to 8C.

  FIG. 7A to FIG. 7C are schematic diagrams for explaining a first product guide member 180 as an example of the product guide member of the present invention. FIG. 8A to FIG. (c) is the schematic for demonstrating the 2nd stacking guide member 190 as another example of the stacking guide member of this invention.

  FIG. 7A is a plan view of the first stack guide member 180, FIG. 7B is a side view of the first stack guide member 180, and FIG. 7C is a configuration of the first stopper portion. FIG.

  8A is a plan view of the second stack guide member 190, FIG. 8B is a side view of the second stack guide member 190, and FIG. 8C is the second stopper portion. It is a schematic side view which shows the state which fell to the lowest point.

  As shown in FIGS. 7A to 7B, the first stack guide member 180 includes a pair of open / close cylinders 181 disposed on both outer sides of the end point of the stack conveyor 103a of the stack device 117, and A first stopper portion 182 that is connected to the open / close cylinder 181 and that contacts the side portion Cs on the end point side of the stacked seedling boxes C and holds the posture of the stacked seedling boxes Cα vertically.

  Moreover, the height of the 1st stopper part 182 is set more highly than the maximum height of the stage pile raising seedling box C (alpha).

  Further, as shown in FIGS. 7A to 7C, the first stopper portion 182 has a replaceable pipe-shaped first stopper pipe-shaped member 182b with respect to the rod-shaped first stopper bar-shaped member 182a. It is the composition which covers. The first stopper pipe member 182b may be an elastic body that absorbs impact.

  Furthermore, before starting the stacking operation, in response to a command from the control unit 110a, the first stopper unit 182 connected to the movable unit of the open / close cylinder 181 is located on the end point side of the stacked seedling boxes C. By extending in the direction in contact with the part Cs, the stacked posture of the stacked seedling boxes C is shifted in the X-axis direction (see FIG. 4) due to the impact of the seedling boxes C fed by the stacking conveyor 103a. It is prevented.

  In addition, before starting the stacking operation by the stacking device 118, the first stopper unit 182 connected to the movable unit of the open / close cylinder 181 is set in the stacked seedling box C according to a command from the control unit 110a. The stage stacking seedling box Cα transported by the pair of movable arms 126a and 126b of the loading device 118 collides with the first stopper portion 182 by contracting in the direction of retreating from the position of the side portion Cs on the end point side. Is avoided.

  Note that the seedling box conveyor 103 (see FIG. 2) of the present embodiment includes a seeder 106 conveyor that maintains a constant seeding speed in the seeding facility 102 and a fast-feed conveyor for widening the spacing between the seedling boxes on the conveyor. And a three-stage speed difference conveyor 103a (see FIG. 7 (a)), which is a low speed to reduce the impact at the end for the stacking operation.

  Thereby, since the 1st stopper part 182 of the 1st stacking guide member 180 retreats out of the transfer path of the stacking seedling box Cα, the loading device 118 raises the stacking seedling box Cα to a high level. It is not necessary to move it sideways. Therefore, it is possible to prevent deterioration of the stacked posture of the stacked seedling boxes, and to improve the work efficiency. In other words, the height of the first stopper portion 182 can be made sufficiently high in order to accurately guide so that the posture of the seedling boxes to be stacked does not shift, and the improvement of the stacking posture of the seedling boxes can be improved. I can plan.

  In addition, the transfer path | route of the stage pile breeding seedling box C (alpha) in the loading apparatus 118 is further later mentioned using FIG. 9 (a)-FIG.9 (c).

  Next, a second stack guide member 190 as another example of the stack guide member of the present invention will be described with reference to FIGS. 8 (a) to 8 (c).

  As shown in FIGS. 8A to 8B, the second stack guide member 190 includes a lift cylinder 191 and a lift cylinder 191 disposed below the end point of the stack conveyor 103a of the stacker 117. And a second stopper portion 192 that contacts the end portion side Cs of the stacked seedling boxes C and holds the posture of the stacked seedling boxes Cα vertically.

  Further, the height of the second stopper portion 192 is set so as to extend higher than the maximum height of the stacking seedling box Cα when rising, and at the time of lowering, the height of about five seedling boxes C stacked. This is the lower limit.

  As described above, the reason why the lower limit of the height of the second stopper portion 192 is determined at the time of lowering is that if the second stopper portion 192 is completely lowered, the seedling box C is raised before being raised again. This is for avoiding being fed and stacked. Thereby, cycle tact time can be shortened (processing capacity can be improved).

  Before starting the stacking operation, the second stopper portion 192 connected to the movable portion of the lifting cylinder 191 is moved to the end portion side side Cs of the stacked seedling boxes C in accordance with a command from the control unit 110a. Prevents the stacking posture of the stacked seedling boxes C from shifting in the X-axis direction (see FIG. 4) due to the impact of the seedling boxes C fed by the stacking conveyor 103a. Is done.

  In addition, before starting the stacking operation by the stacking device 118, the second stopper portion 192 connected to the movable portion of the elevating cylinder 191 is in accordance with a command from the control unit 110a. By contracting in the direction of retreating downward from the position of the side portion Cs on the end point side, the stage stacking seedling box Cα transferred by the pair of movable arms 126a and 126b of the loading device 118 collides with the second stopper portion 192. Can be avoided.

  As a result, the second stopper 192 of the second stack guide member 190 retreats out of the transfer path of the stacking seedling box Cα, so that the loading device 118 raises the stacking seedling box Cα to a high level. It is not necessary to move it sideways. Therefore, it is possible to prevent deterioration of the stacked posture of the stacked seedling boxes, and to improve the work efficiency. In other words, the height of the second stopper portion 192 can be made sufficiently high to accurately guide the posture of the seedling boxes to be stacked so that the posture of the seedling boxes is improved. I can plan.

  Further, when the second stopper portion 192 is retracted out of the transfer path of the stacked seedling box Cα, it is not lowered completely, but a minimum height of about five seedling boxes C stacked is secured. By adopting the configuration, even when the seedling box C is sent in early, the stacked posture can be reliably maintained. Thereby, cycle tact can be shortened.

  Next, the loading device 118 described above will be further described with reference to FIGS.

  That is, the loading device 118 is configured to hold and move the stacked seedling boxes Cα stacked in a predetermined number of stacked sheets (for example, 10 sheets), and is moved by the pair of movable arms 126a and 126b. Grasping the growing seedling box Cα.

  The stacking device 118 repeats the operation of stacking the stacked stacking seedling boxes Cα stacked on the stacking arm 119 in order on the stacking arm 119 a plurality of times (for example, three times in total), thereby raising the seedling box The configuration is such that C is stacked on a predetermined number of sheets (30 sheets in total).

  As shown in FIG. 3, the pair of movable arms 126 a and 126 b are configured to be in contact with the side surface on the long side of the stepped seedling box Cα in plan view, and are 2 along the X-axis direction (see FIG. 3). A set is provided. The pair of movable arms 126a and 126b is moved up and down along the Z-axis direction (see FIG. 4) by a vertical movement motor 127 and driven by a lateral movement motor 128 (see FIG. 3). 4) and is rotated about the actuator rotation shaft 126c disposed along the X-axis direction by the first pneumatic actuator 162a and the second pneumatic actuator 162b. ing.

  The loading rack 129 includes a loading rack support first column 129A disposed on the stacking device 117 side and a loading rack support second column 129B disposed on the loading arm 119 side. It is supported while maintaining a predetermined height.

  Further, the first holding claws 164a and the second holding claws 164b projecting to the side of the stage stacking seedling box Cα for supporting the staged stacking seedling box Cα to be gripped from below are provided at the distal ends of the pair of movable arms 126a and 126b (FIG. 5 (a)).

  Further, as shown in FIG. 5B, the upper surface 164b1 and the lower surface 164b2 of the second holding claw 164b are inclined so that the thickness of the second holding claw 164b is thinner than the thickness of the root portion. ing. The first holding claw 164a has the same configuration.

  The second holding claw 164b has a first photoelectric sensor 301, a second photoelectric sensor 302, and a third photoelectric sensor 303, which will be described later, on one side surface (the side surface shown in FIG. 5B). A reflection plate 164b3 (see FIG. 5B) for reflecting the emitted light is attached. The detection result of the reflected light by the first photoelectric sensor 301 to the third photoelectric sensor 303 is used by the control unit 110a to determine the operation start timing of the first pneumatic actuator 162a. These will be further described later.

  By adopting a configuration in which the upper surface and the lower surface of the first holding claws 164a and the second holding claws 164b are both inclined, it is possible to prevent a sudden drop of the stage-growing seedling box Cα due to the opening operation of the pair of holding claws, It can prevent the soil in the nursery box. Further, when the next stage stacked breeding seedling box Cα is stacked on the stage stacked breeding seedling box Cα that has already been transferred to a predetermined position on the loading arm 119, the next stage stacked breeding seedling box Cα and already transferred. Since the stacked stage seedling box Cα is less likely to be displaced (difficult to move) in the lateral direction by opening the pair of holding claws, the next stage stacked seedling box Cα and the staged seedling box Cα that has already been transferred Can be prevented, and the stacked posture of the stacked seedling box group Cβ is improved.

  Furthermore, in the loading apparatus 118 of this Embodiment, the timing which cancels | releases holding | grip of the stage stacking seedling box C (alpha) is set as the structure which differs with the 1st holding claw 164a and the 2nd holding claw 164b.

  That is, the control unit 110a performs control to start the operation of the second pneumatic actuator 162b after a predetermined time has elapsed after starting the operation of the first pneumatic actuator 162a. The predetermined time is configured such that the operator can set an arbitrary value using an operation panel provided in the control box 110b.

  Thereby, the 2nd holding claw 164b leaves | separates from the lower surface of the stage pile seedling box C (alpha) behind the 1st holding claw 164a by the said fixed time. In other words, the 1st holding claw 164a leaves | separates from the lower surface of the stage pile raising seedling box C (alpha) ahead of the said 2nd holding claw 164b only for the said fixed time.

  Compared with the conventional loading device in which the pair of holding claws are separated from the stacked-stacking seedling box Cα simultaneously by the above operation, the first holding claws 164a on one side for holding the stacked-stacked seedling box Cα have the second holding on the other side. Since it leaves | separates ahead of the nail | claw 164b, it can prevent the sudden drop of the stage pile raising seedling box C (alpha), and the impact by a fall reduces, As a result, the soil side in a raising seedling box can be prevented.

  In addition, when the next stage stacking seedling box Cα is to be stacked on the stage stacking seedling box Cα that has already been transferred to a predetermined position on the loading arm 119, the seedlings at the bottom of the next stage stacking seedling box Cα are placed. Match one long side of the box (the side gripped by the first holding claws 164a) with the one long side of the uppermost seedling box of the stacked stack seedling box Cα that has already been transferred, and then The other long side (the side gripped by the second holding claws 164b) of the bottom stage seedling box of the next stage stacking seedling box Cα is the top stage seedling of the stage stacking seedling box Cα that has already been transferred. Since it can be adjusted to the other long side of the box, it is possible to prevent the positional deviation between the next staged seedling box Cα and the staged seedling box Cα that has already been transferred, and the loading posture of the staged seedling box group Cβ Becomes better.

  In addition, the above-mentioned effect in the case of stacking the next stage stacking seedling box Cα on the staged stacking seedling box Cα that has already been transferred is that the uneven shape on the upper surface side of the seedling box C and the uneven shape on the lower surface side are: This is remarkably exhibited in a configuration in which each other is engaged.

  In addition, in the loading device 118 of the present embodiment, the number of times of loading operation is set to three as an example, and the position of the second holding claw 164b in the height direction (Z-axis direction in FIG. 5A) is detected. A case where the first photoelectric sensor 301 to the third photoelectric sensor 303 are provided will be described.

  Below, the 1st photoelectric sensor 301-the 3rd photoelectric sensor 303 are demonstrated using FIGS. 3-5 (b).

  The first photoelectric sensor 301 to the third photoelectric sensor 303 have a predetermined height on the side surface of the loading rack support second pillar 129B disposed on the loading arm 119 side of the stacking / loading / transfer equipment 110. The first sensor mounting stay 311 to the third sensor mounting stay 313 are fixed at this position.

  As shown in FIG. 5A, the first sensor mounting stay 311, the second sensor mounting stay 312, and the third sensor mounting stay 313 have root portions fixed to the side surfaces of the loading rack support second pillar 129B. The first photoelectric sensor 301 to the third photoelectric sensor are rectangular plate-like members arranged in parallel to the Y-axis, and on the side surface on the side where the second holding claw 164b exists among the side surfaces on both sides of the tip. The type sensors 303 are fixed at predetermined height positions with reference to the upper surface of the predetermined position (loading position) of the loading arm 119. Here, the upper surface of the loading arm 119 at a predetermined position (loading position) is an upper surface of a mounting plate 119b provided on the loading arm 119, on which an initial stage seedling raising box Cα, which will be described later, is placed.

  Further, the first photoelectric sensor 301 to the third photoelectric sensor 303 emit light in the horizontal direction toward the side where the second holding claw 164b exists, which is parallel to the X axis shown in FIG. It is a photoelectric sensor having a light projecting unit (not shown) that emits light and a light receiving unit (not shown) that receives reflected light of the light.

  That is, when the loading device 118 descends in the state of gripping the stage stacking seedling box Cα in the loading operation, according to the number of times of loading in the loading operation, The light emitted in the horizontal direction from any one of the first photoelectric sensor 301 to the third photoelectric sensor 303 is again reflected by the reflector 164b3 attached to the side surface of the second holding claw 164b. When reflected in the horizontal direction, the reflected light is received by any one of the first photoelectric sensor 301 to the third photoelectric sensor 303, so that a predetermined position (product) of the loading arm 119 is obtained. The position in the height direction of the second holding claw 164b is detected using the upper surface of the attachment position) as a reference.

  Specifically, the fixed position of the first photoelectric sensor 301 is determined when the distance between the lower surface of the second holding claw 164b and the mounting plate 119b of the loading arm 119 reaches the first value. The light receiving unit of the first photoelectric sensor 301 is set to receive light emitted from the light projecting unit of the first photoelectric sensor 301 as reflected light reflected by the reflecting plate 164b3 of the second holding claw 164b. ing.

  The first value is constant without depending on the type of the seedling box C (the height of the seedling box C varies depending on the type).

  Further, the fixed position of the second photoelectric sensor 302 is such that when the distance between the lower surface of the second holding claw 164b and the mounting plate 119b of the loading arm 119 reaches the second value, The light receiving unit of the type sensor 302 is set to receive light emitted from the light projecting unit of the second photoelectric sensor 302 as reflected light reflected by the reflection plate 164b3 of the second holding claw 164b.

  The second value assumes the case where the kind of seedling box C is the highest in height, and uses the highest height value of the seedling box C as the level of the stacking device 117. A value obtained by adding the first value to the overall height of the stacked seedling box Cα multiplied by the number (for example, 10) is used.

  Further, the fixed position of the third photoelectric sensor 303 is the third photoelectric sensor when the distance between the lower surface of the second holding claw 164b and the mounting plate 119b of the loading arm 119 reaches the third value. The light receiving unit of the type sensor 303 is set to receive the light emitted from the light projecting unit of the third photoelectric sensor 303 as reflected light reflected by the reflection plate 164b3 of the second holding claw 164b.

  Note that the third value assumes that the kind of seedling box C is the highest in height, and the height of the seedling box C is set to the number of stacks of the stacking device 117 ( For example, a value obtained by adding the first value to the overall height after two times of stacking the seedling box Cα multiplied by 10) × 2.

  In addition, the type of the seedling box C is configured to be settable in advance by the operator as to which type to use from among a plurality of types via the operation panel of the control box 110b. The configuration can be changed during work. By setting the type of the seedling box C to be used via the operation panel, the height information of the seedling box C is set in the control unit 110a.

  When the controller 110a determines that the reflected light from the third photoelectric sensor 303, the second photoelectric sensor 302, or the first photoelectric sensor 301 has been detected, a delay timer (not shown) built in the controller 110a is detected. ), A countdown of a predetermined set time is started to control the operation start timing of the first pneumatic actuator 162a. Here, the predetermined set time is determined by the control unit 110a according to the height information of the seedling box C and the information on the number of times of stacking during the stacking operation.

  For example, assuming that the number of repetitions of the loading operation of the loading device 118 is 3, in the case of the first loading operation, the control unit 110a determines that the reflected light is detected by the first photoelectric sensor 301. After the first set time of the delay timer has elapsed, a command to stop the lowering of the pair of movable arms 126a, 126b is issued and a release command to release the holding of the stage stacking seedling box Cα is issued, and the first pneumatic actuator The operation of 162a is started.

  Here, the first set time can be adjusted so that the impact of the drop of the stacked seedling raising box Cα due to the opening operation of the pair of movable arms 126a, 126b can be suppressed, and the soil in the raising seedling box can be prevented from being soiled. It is configured. Note that the first set time does not depend on the type of the seedling box C.

  In the case of the second loading operation, the control unit 110a receives the pair of movable arms after the second set time of the delay timer has elapsed since it was determined that the reflected light was detected by the second photoelectric sensor 302. A command to stop the descent of 126a and 126b is issued and a release command to release the grasping of the stage stacking seedling box Cα is issued to start the operation of the first pneumatic actuator 162a. Here, the second set time is set in the control unit 110a as follows.

  That is, the first value is subtracted from the second value described above, and the number of stacked units of the stacking device 117 is set to a height value corresponding to the height information of the seedling box C actually used that has been input in advance. Obtained by dividing the “difference distance” obtained by subtracting the actual overall height value of the multi-stage seedling box Cα multiplied by (for example, 10) by the speed at which the second holding claws 164b move downward. The time obtained by adding the first set time to the set time is set as the second set time.

  Further, in the case of the third loading operation, the control unit 110a has a pair of movable arms after the third set time of the delay timer has elapsed since it was determined that the reflected light was detected by the third photoelectric sensor 303. A command to stop the descent of 126a and 126b is issued and a release command to release the grasping of the stage stacking seedling box Cα is issued to start the operation of the first pneumatic actuator 162a. Here, the third set time is set in the control unit 110a as follows.

  That is, the first value is subtracted from the third value described above, and the number of stacked units of the stacking device 117 is set to a height value corresponding to the height information of the seedling box C that is actually used that has been input in advance ( For example, the difference distance obtained by subtracting the actual overall height value after the two-stage stacking of the multi-stage seedling box Cα multiplied by 10) × 2 is indicated by the second holding claw 164b The time obtained by adding the first set time to the time obtained by dividing by the moving speed is defined as a third set time.

  By the way, in the conventional stacking apparatus, when the kind of seedling box to be used is different, the height of the seedling box is different depending on the kind, so that the descent stop position (height) of the pair of holding claws after the second stacking And the start position (height) of the opening operation needs to be changed. Therefore, it is necessary to change the mounting height of the proximity switch that detects the position in the height direction of the pair of holding claws every time the type of seedling box used is different, which reduces work efficiency or makes adjustments There are problems such as making mistakes.

  On the other hand, in the above configuration, even when the kind of seedling box to be used is different, the control unit 110a uses the seedling box to be used by setting the kind of seedling box to be used in advance from the operation panel of the control box 110b. Since the second set time and the third set time, which are the set times of the delay timer, are automatically changed according to the type, the operator can change the second photoelectric sensor 302 and the third photoelectric sensor 303. There is no need to change the mounting height. Note that each of the second set time and the third set time may be configured to be individually set by the operator.

  The second photoelectric sensor 302 and the third photoelectric sensor 303 of the present embodiment are an example of the position detection unit of the present invention.

  Next, with reference to FIGS. 9A to 9C, the transfer path of the stacked stack seedling box Cα in the loading device 118 will be described.

  FIG. 9A to FIG. 9C are schematic perspective views for explaining a transfer path of the stage stacking seedling box Cα in the loading device 118.

  As shown in FIG. 9A, when the loading device 118 first loads the loading arm 119 (first time), the upper surface of the mounting plate 119b on the loading arm 119 in the retracted position I described later is It becomes a position lower than the lower surface of the stacked product seedling box Cα at the gripping position J that grips the stacked stacked product seedling box Cα.

  Accordingly, the pair of movable arms 126a and 126b of the stacking device 118 grip the stage stacking seedling box Cα, slightly float from the gripping position J, and move laterally along the X-axis direction (see FIG. 9A). Then, it moves onto the loading arm 119 and moves down to the retracted position I.

  When the reflected light from the reflecting plate 164b3 attached to the second holding claw 164b is received by the first photoelectric sensor 301 (see FIG. 4) during the downward movement of the pair of movable arms 126a and 126b, the control is performed. The unit 110a operates the delay timer to stop the downward movement of the pair of movable arms 126a and 126b after the first set time has elapsed, and starts the operation of the first pneumatic actuator 162a to The first holding claws 164a provided in the section are moved outward to release the gripping of one side of the stage stacking seedling box Cα.

  Thereafter, the controller 110a starts the operation of the second pneumatic actuator 162b after a predetermined time has elapsed, thereby moving the second holding claw 164b provided at the tip of the movable arm 126b outward. Release the grip on the other side of the stacked seedling box Cα.

  Next, as shown in FIG. 9 (b), when the second stage stacked seedling box Cα is loaded from the stacking device 118 to the loading arm 119, the bottom surface of the stage stacked seedling box Cα at the gripping position J The height is substantially the same as the upper surface of the stacked seedling box Cα that has already been stacked on the arm 119 for the first time.

  The loading arm 119 is configured to move up from the retracted position I to the normal position H (see FIG. 9B) before loading the second-stage stacked seedling box Cα. The retreat position I and the normal position H will be further described later.

  Accordingly, the pair of movable arms 126a and 126b of the stacking device 118 grip the stage stacking seedling box Cα, slightly float from the gripping position J, and move laterally along the X-axis direction (see FIG. 9A). Then, it moves onto the loading arm 119 and slightly moves down to the upper surface of the first stage stacked seedling box Cα.

  When the reflected light from the reflecting plate 164b3 attached to the second holding claw 164b is received by the second photoelectric sensor 302 (see FIG. 4) during the downward movement of the pair of movable arms 126a and 126b, the control is performed. The unit 110a operates the delay timer to stop the downward movement of the pair of movable arms 126a and 126b after the second set time has elapsed, and starts the operation of the first pneumatic actuator 162a to The first holding claws 164a provided in the section are moved outward to release the gripping of one side of the stage stacking seedling box Cα.

  Thereafter, the controller 110a starts the operation of the second pneumatic actuator 162b after a predetermined time has elapsed, thereby moving the second holding claw 164b provided at the tip of the movable arm 126b outward. Release the grip on the other side of the stacked seedling box Cα.

  Next, as shown in FIG. 9 (c), when loading the third-stage stacked seedling box Cα from the loading device 118 to the loading arm 119, the stacking is performed more than the bottom surface of the stacked stacking seedling box Cα at the gripping position J. The upper surface of the stacked seedling box Cα already stacked for the second time on the attached arm 119 becomes higher.

  Accordingly, the pair of movable arms 126a and 126b of the loading device 118 grips the stage stacking seedling box Cα and moves up from the gripping position J to a position slightly higher than the upper surface of the second stage stacking seedling box Cα. It moves laterally and moves onto the loading arm 119, and slightly moves down to the upper surface of the second stage stacked seedling box Cα.

  When the reflected light from the reflecting plate 164b3 attached to the second holding claw 164b is received by the third photoelectric sensor 303 (see FIG. 4) during the downward movement of the pair of movable arms 126a and 126b, the control is performed. The unit 110a operates the delay timer to stop the downward movement of the pair of movable arms 126a and 126b after the third set time has elapsed, and starts the operation of the first pneumatic actuator 162a to The first holding claws 164a provided in the section are moved outward to release the gripping of one side of the stage stacking seedling box Cα.

  Thereafter, the controller 110a starts the operation of the second pneumatic actuator 162b after a predetermined time has elapsed, thereby moving the second holding claw 164b provided at the tip of the movable arm 126b outward. Release the grip on the other side of the stacked seedling box Cα.

  As a result, in the transfer operation of the stacked stacking seedling box Cα by the loading device 118, the sudden drop of the stacked stacking seedling box Cα can be prevented, and the impact due to the drop is reduced. Can be prevented.

  In addition, when stacking the next stage stacking seedling box Cα on the stage stacking seedling box Cα that has already been transferred to a predetermined position on the loading arm 119, as described above, The positional deviation from the staged seedling box Cα that has already been transferred can be prevented, and the loading posture of the staged seedling box group Cβ is improved.

  Next, the loading arm 119 will be described with reference to FIGS. 3 to 5A and FIGS. 10A to 10C.

  FIG. 10 (a) is a perspective view showing a situation where the stacked seedling box group Cβ is mounted on the mounting platform 111a at the mounting position on the back side of the budding cart 111, and FIG. 10 (b) is a stacked product. It is a perspective view which shows the condition which mounts the seedling box group C (beta) on the mounting base 111a of the mounting position of the near side of the germination carriage 111. FIG. FIG. 10C is a perspective view showing a state in which the stage stacking seedling box group Cβ is placed on the placement platforms 111a at the four placement positions in the front, rear, left, and right sides of the budding carriage 111.

  The loading arm 119 includes two arm bodies 119a and a mounting plate 119b provided at the tip of each arm body 119a, and is moved in the Y-axis direction (via the transfer rack driven by the movement motor 179). 3) and is moved up and down by a pantograph mechanism 130 (see FIG. 5A) provided below.

  In addition, the loading arms 119 are twelve in order to prevent the tilting when the two arm bodies 119a carrying the stage stacking seedling box group Cβ are moved along the Y-axis direction. The roller 119c (see FIGS. 3 and 5A) is configured to move while sandwiching the top and bottom.

  Further, above the arm body 119a, a scraper having an inclination angle on the further left side of the roller 119c depicted on the left side in FIG. 5A among the rollers 119c disposed on the upper side of the arm body 119a. 119d is provided. As a result, when the stacked seedling box group Cβ is placed on the budding carriage 111 or the like, soil or the like that is placed on or attached to the arm body 119a is placed on the budding carriage 111 by the loading arm 119. The scraper 119d is removed when returning and operating after being placed.

  Accordingly, it is possible to prevent the soiling or the like from being sandwiched between the roller 119c and the arm body 119a, thereby deteriorating the loading posture of the stage stacking seedling box group Cβ on the loading arm 119.

  In addition, malfunction of the loading arm 119 due to soil or the like (inappropriate speed change, vibration, etc.) can be prevented.

  Therefore, it is possible to improve the transfer accuracy of the stacked seedling box group Cβ.

  In addition, with the above configuration, it is possible to prevent the loading arm 119 from being stopped abnormally and to reduce the work time associated with the abnormal stop.

  In addition, the inspection time before and after the work can be reduced.

  In order to remove soil or the like that is placed on or attached to the arm body 119a, an air ejection device (not shown) may be provided in place of the scraper 119d or in addition to the scraper 119d. According to this configuration, at the time of emergency stop, abnormal stop, work end, manual operation (button pressing), air blow around the roller 119c is performed, so that dirt or the like is caught in the roller 119c. It can be prevented.

  Thereby, in addition to the said effect, cleaning in a difficult-to-clean place and implementation of a safe operation | work can be aimed at.

  With the above configuration, the stacking device 118, for example, stacks the 10-stage stacked seedling box Cα in three portions and stacks it up and down, for a total of 30-stage stacked seedling box group Cβ (FIG. 5A). When the loading arm 119 is loaded on the mounting plate 119b of the loading arm 119, the loading arm 119 is moved in the forward direction along the Y-axis direction by driving the moving motor 179, and stands in a budding cart 111 ( 3), and the loading arm 119 is moved down by the pantograph mechanism 130 to move the stage stacking seedling box group Cβ to the pedestal 111a (see FIG. 3) of the budding carriage 111. By driving the moving motor 128, the loading arm 119 moves in the backward stroke along the Y-axis direction and moves to the retracted position I, and is moved up from the retracted position I to the original normal position H by the pantograph mechanism 130. (See FIG. 10B).

  The budding trolley 111 has a configuration in which the stacked seedling box group Cβ is placed at four placement positions in front, rear, left, and right (see FIG. 10C), and the placement position faces the loading arm 119. Move appropriately to reach the position. Accordingly, the loading arm 119 places the stage stacking seedling box group Cβ at the placement position on the near side and the placement position on the back side of the loading arm 119. In FIG.10 (c), the order which mounts the stage pile raising seedling box group C (beta) in the total four mounting positions of the budding carriage 111 was shown with 1-4.

  The budding cart 111 travels in the direction of arrow P (see FIG. 3 and FIG. 10C) on the cart travel rail 131 (see FIG. 5A) provided in parallel along the seedling box transport conveyor 103. It has a configuration.

  Further, in the present embodiment, the loading arm 119 is configured to place the stage stacking seedling box group Cβ on the front side and back side of the budding carriage 111, and when placed on the back side, Lateral movement from the normal position H moves the stage stacking seedling box group Cβ onto the platform 111a at a predetermined position, moves down to transfer the stage stacking seedling box group Cβ onto the stage 111a, It is the structure which returns to the normal position H, moving up by the horizontal movement of a stroke.

  Further, when the loading arm 119 is placed at a position on the near side of the budding carriage 111, the stage stacking seedling box group Cβ is moved from the normal position H to the loading stage 111a at a predetermined position by lateral movement in the forward direction. After moving down, the stage stacking seedling box group Cβ is transferred onto the stage 111a, moved to the retreat position I by the lateral movement in the backward stroke, and after the first loading operation by the loading device 118. It is configured to move upward from the retracted position I to the normal position H before the second stacking operation.

  Therefore, according to the above configuration, when placing the stacked seedling box group Cβ in the position on the back side of the budding carriage 111, the loading arm 119 returns to the normal position H while moving upward by the lateral movement in the backward stroke. Therefore, the return of the loading arm 119 to the normal position H can be accelerated, and the work efficiency can be improved.

  In addition, according to the above configuration, even when the stage stacking seedling box group Cβ is placed at the front side of the budding carriage 111, the stacking device 118 first loads the stage stacking seedling box Cα on the stacking arm 119. When attaching, the stacking arm 119 at the retracted position I is directly stacked, so that the stacking seedling box Cα is loaded without waiting for the stacked arm 119 to move up from the retracted position I to the normal position H. Work efficiency can be improved.

  For example, the stacking device 117 stacks a total of 10 seedling boxes C to form a stacked stacking seedling box Cα, and the loading device 118 transfers the first stacking seedling box Cα to the loading arm 119. The time required for loading is substantially the same as the time required for the loading arm 119 to return from the normal position H to the loading position on the front side of the budding carriage 111 from the normal position H and return to the retreat position I. It is equivalent.

  Next, the front wheel 111F and the rear wheel 111R of the budding carriage 111 will be described (see FIGS. 3 and 10C).

  In the present embodiment, the front wheel 111F of the fixed wheel is a high-hardness resin wheel or an iron wheel, and the rear wheel 111R of the universal wheel is made of elastic resin, rubber, or the like.

  As a result, when the stacked seedling box group Cβ is placed on the budding carriage 111, as shown in FIG. 10 (c), the budding carriage 111 is placed on the front wheel 111F side because it is first placed from the front wheel 111F side. Although the load of the stage stacking seedling box group Cβ is biased, the front wheel 111F is not deformed, so that it can be prevented from inclining toward the front wheel 111F as in the prior art.

  For this reason, when the loading arm 119 places the stacked product seedling box group Cβ on the rear wheel 111R side on the budding cart 111, the bottom surface of the stacked product seedling box group Cβ and the upper surface of the mount 111a of the budding cart 111 are parallel to each other. Thus, since they do not interfere with each other as in the prior art, it is possible to improve the placement accuracy on the budding carriage 111 and to prevent placement mistakes.

Further, since the rear wheel 111R is made of an elastic material, slip prevention can be achieved.

Next, using FIG. 11 to FIG. 12, a nursery box transshipment device 143 that takes out seedling boxes two by two from the stage-stacked seedling box group Cβ of the budding cart 111 and transfers them to the shelves of the greening cart 146 will be described.

  FIG. 11 is a side view of the seedling box transfer device 143, and FIG. 12 is a plan view of the seedling box transfer device 143.

  The budding cart 111 that accommodates the stacked stage seedling box groups Cβ1 to Cβ4 (see FIG. 12) is germinated in the budding chamber 112 for about three days. When the stacking seedling box group germinated in the budding room 112 is transferred to the greening cart 146, the budding cart 111 is supplied to the seedling box transfer device 143 together with the budding cart 111.

  As shown in FIGS. 11 to 12, the seedling box transshipment apparatus 143 stacks the seedling box C transported by the stacking lift unit 144, the seedling box transport unit 145, and the seedling box transport unit 145 on the greening cart 146. Among the stacked seedling box groups Cβ1 to Cβ4 stacked on the budding carriage 111, first, the two-stage stacked growing seedling box groups Cβ1 on the front wheel 111F side of the budding carriage 111, Two seedling boxes C are taken out from Cβ2 and stacked on the shelves on one side of the front and rear of the greening cart 146, and then the two-row stacked seedling box groups Cβ3, Cβ4 on the rear wheel 111R side of the budding cart 111 are placed. It is the structure which takes out the seedling box C 2 sheets from each and stacks it on the shelf of the other side before and after the greening cart 146 respectively.

  The stage lift section 144 is fork 148, scoops two rows of stage stack seedling box groups Cβ1 and Cβ2 (see FIG. 12) on the front wheel 111F side of the budding carriage 111, supplies them to the lift position 149, and is stacked. After raising the seedling box groups Cβ1 and Cβ2 by the height of one seedling box and supplying all the seedling boxes to the seedling box transporting unit 145, the rear wheel 111R side of the budding cart 111 is again connected with the fork 148. The two-stage stacked product seedling box groups Cβ3 and Cβ4 (see FIG. 12) are scooped and supplied to the lift position 149, raised in the same manner as described above, and supplied to the seedling box transport unit 145.

  The seedling box transport section 145 takes out the two seedling boxes C in order from the upper layer of the stage stack seedling box group Cβ raised by the stage lift section 144, places them on the roller conveyor 150, and places them on the shelf stack section 147 side. It is the structure conveyed to.

  Further, in the seedling box transporting unit 145, a second irrigation device 158 for irrigating the nursery box C to be transported from above is provided above the roller conveyor 150. Below the roller conveyor 150, a scraper (not shown) for removing soil and the like fixed to the rollers of the roller conveyor 150, and a nozzle (not shown) for jetting water to the rollers are provided. The nozzle is configured to eject water at the same timing in conjunction with the second irrigation device 158.

  As a result, soil or the like fixed to the roller that cannot be removed by the scraper can be removed by the water sprayed from the nozzle.

  Further, the roller conveyor 150 is provided with a first seedling box stopper 155a and a second seedling box stopper 155b on the lower conveyance side and the upper conveyance side, and is conveyed to the first seedling box stopper 155a or the second seedling box stopper 155b. The two seedling boxes C are brought into contact with each other and stopped at a predetermined position on the roller conveyor 150.

  The first seedling box stopper 155a and the second seedling box stopper 155b can be moved out and with respect to the seedling box transport path of the roller conveyor 150, and when passing through the seedling box C, the first seedling box stopper 155a is retracted upward. It has become.

  For the two seedling boxes C1 and C2 (see FIG. 12) that are taken out from the stacking seedling box groups Cβ1 and Cβ2 and are sequentially conveyed, the roller conveyor 150 is provided by the first nursery box stopper 155a on the lower side of the conveyance. It stops at the first stop position on the lower conveyance side. For the two seedling boxes C3 and C4 (see FIG. 12) that are taken out from the stacked seedling box groups Cβ3 and Cβ4 and are sequentially transported, the roller conveyor 150 is provided by the second nursery box stopper 155b on the upper side of the transport. It stops at the second stop position on the upper transport side.

  In addition, the shelf portion 147 includes a greening cart lifting unit 159 provided on one side of the roller conveyor 150 and a first seedling box stopper on the opposite side of the roller conveyor 150 from the greening cart lifting unit 159 in plan view. 155a, and a first extrusion device 160a and a second extrusion device 160b respectively provided on the lower conveyance side and the upper conveyance side corresponding to the second seedling box stopper 155b.

  Further, in the greening cart lifting / lowering unit 159, the greening cart 146 is moved up and down so that each of the shelves 157 on which the seedling boxes C provided at predetermined intervals above and below the greening cart 146 are at the same height as the roller conveyor 150. It has become.

  Accordingly, the shelf stacking unit 147 raises the shelves 157 and the roller conveyor 150 at the same height by intermittently raising the greening carts 146 at every vertical pitch of the shelves 157 in the greening cart lifting unit 159. In the state, using the first extrusion device 160a, the two seedling boxes C1 and C2 on the roller conveyor 150 stopped by the first seedling box stopper 155a are placed on the uppermost shelf 157 on one side of the greening cart 146. Push in at the same time in order and stack to the bottom.

  Thereafter, the shelf stacking unit 147 further lowers the greening cart 146 intermittently at every vertical pitch of the shelves 157 in the greening cart lifting and lowering unit 159 so that the shelves 157 and the roller conveyors 150 have the same height. In the state, using the second extrusion device 160b, the two seedling boxes C3 and C4 on the roller conveyor 150 stopped by the second seedling box stopper 155b are placed on the lowermost shelf 157 on the other side of the greening cart 146. Push in at the same time in order and stack to the top.

  Here, the extrusion speeds of the first extrusion device 160a and the second extrusion device 160b are variable by an inverter. That is, since the extrusion speed is configured to be adjustable according to the weight difference depending on the type of seedling box C and the amount of soil and water filled, the insertion into the greening cart 146 due to insufficient extrusion speed or excessive It is possible to prevent the rotation of the nursery box due to the extrusion speed and the occurrence of excessive impact.

  Further, in a plan view, the greening cart 146 is positioned at the position facing the first extruding device 160a and the second extruding device 160b at the lowest stage for stopping the movement of the two nursery boxes that have been extruded simultaneously. A first nursery box positioning bar 157a and a second nursery box positioning bar 157b which are vertically extended from the lower side of the shelf 157 to the upper side of the uppermost shelf 157 are erected.

  Further, in plan view, the first nurturing seedling is placed on the frame 159a of the greening cart lifting / lowering unit 159 on the opposite side of the greening cart 146 with respect to the greening cart 146 at the same height as the roller conveyor 150. A pair of first regulating devices 171a and 171b and a pair of second regulating devices 172a and 172b are arranged on both sides of the box positioning bar 157a and the second seedling box positioning bar 157b.

  In addition, the pair of first regulating devices 171a and 171b and the pair of second regulating devices 172a and 172b each have a contact portion 173 configured to be able to move in and out of the shelf 157 of the greening cart 146. .

  For example, the cylinders of the pair of first regulating devices 171a and 171b extend before the two seedling boxes C1 and C2 are pushed out simultaneously to the shelf 157 of the greening cart 146, so that the first seedling box positioning bar 157a is extended. The contact part 173 is pushed out in advance on both sides of the.

  Here, for example, of the pair of first restricting devices 171a and 171b, the device disposed on the front side with reference to the traveling direction Q (see FIG. 12) of the greening cart 146 is referred to as a front first restricting device 171a. The device disposed on the rear side is referred to as a rear first regulating device 171b. The same applies to the pair of second regulating devices 172a and 172b.

  In the present embodiment, the position where the contact portion 173 is pushed out in advance is, for example, the position where the contact portion 173 of the rear first regulating device 171b is pushed out of the pair of first regulating devices 171a, 171b. It is comprised so that it may become slightly far from the roller conveyor 150 from the position where the contact part 173 of the front side 1st control apparatus 171a is extruded.

  Thereby, when the two seedling boxes C1 and C2 are pushed out simultaneously to the shelf 157 of the greening cart 146, the center part of the side surface of the seedling box C2 hits the first seedling box positioning bar 157a and the two seedling boxes C1 and C2 turn slightly in the clockwise direction and stop in plan view with the first nursery box positioning bar 157a as a fulcrum.

  The greening cart 146 has a frame that forms a shelf frame (not shown) at the position where the contact portion 173 of the pair of first restriction devices 171a and 171b and the pair of second restriction devices 172a and 172b is withdrawn. Are not provided over the upper and lower sides of the plurality of shelves 157.

  The shelf frame is a frame body (a rectangular parallelepiped frame body) that constitutes the greening carriage 146 and supports the shelf 157. The contact portion 173 protrudes inside the rectangular frame constituting the shelf frame, and the shelf frame is long in the vertical direction from the upper side of the uppermost shelf 157 to the lower side of the lowermost shelf 157.

  Thereby, in the range which raises / lowers the greening cart 146 in order to stack the seedling boxes C, the shelf frame does not interfere with the protruding contact portion 173.

  The shelf 157 includes a pair of left and right support plates 157R and 157L that support only the bottom surfaces of both left and right ends of the seedling box C, and the contact portion 173 is located between the left and right support plates 157R and 157L. It is a configuration.

  The pair of first regulating devices 171a and 171b are in a position where the contact portion 173 is pushed out while the greening cart 146 is raised by the vertical pitch of the shelf 157 by the greening cart lifting unit 159, and the greening cart 146 moves forward. Before the operation, the cylinder is contracted to retract the contact portion 173 from the greening cart 146.

  After the stacking of the seedling boxes is completed, the operator can place the seedling box on the shelf 157 on the side of the plurality of shelves 157 arranged in the vertical direction (that is, on the side of the first extrusion device 160a and the second extrusion device 160b). A rod-shaped restricting body (not shown) for preventing falling off is attached to the greening cart 146.

  This bar-shaped regulating body is a member having the same configuration as the first nursery box positioning bar 157a and the second seedling box positioning bar 157b described above, and until the feeding of the seedling box to the shelf 157 of the greening cart 146 is started, The first seedling box positioning bar 157a and the second seedling box positioning bar 157b shown in FIG. However, when starting to put the seedling box into the shelf 157 of the greening cart 146, the rod-shaped regulation body is once removed, and after the stacking of the seedling box is completed, the seedling box is removed to be put into the shelf 157. In order to prevent the seedling box from falling off from the shelf 157 on the side (the side of the first extrusion device 160a and the second extrusion device 160b), a rod-shaped regulation body is mounted again.

  The contact portion 173 of the pair of second regulating devices 172a and 172b has the same configuration as described above.

  Thereby, the pushing position of the seedling box C in the greening cart 146 can be made appropriate, and the seedling box C stacked in the greening cart 146 becomes a structure (for example, a frame or the like) of the seedling box transfer device 143. Interference can be prevented.

  Moreover, since the extrusion apparatuses 160a and 160b can be operated at high speed, the work efficiency can be improved.

  In the above description, the green cart 146 is stacked while being raised by one pitch of the shelf 157. However, the green cart 146 is first raised and the shelf 157 is lowered by one pitch. It is good also as a structure to pile up. Moreover, although the structure which pushes the seedling box into the shelf 157 before and behind the greening cart 146 at a time by the first extrusion device 160a and the second extrusion device 160b has been described, the greening cart 146 is first moved by a single extrusion device. The nursery box may be pushed into the front shelf 157 while being raised by one pitch of the shelf 157, and then the greening cart may be advanced to push the nursery box into the rear shelf 157.

  Next, with reference to FIGS. 13 (a) to 13 (c), a configuration in which the soaked container 400 for net bags is stacked in two stages and placed in the soaked water tank 116 (see FIG. 1) will be described.

  FIG. 13A to FIG. 13C are explanatory views showing a procedure for putting the netting seed container 400 for the net bag into the soaking water tank 116 in two layers. FIG.13 (d) is an enlarged view of the S part shown in the figure of Fig.13 (a).

  As shown in FIG. 13 (a), latches 401 that can be turned up and down are provided at both ends (the back side and the near side in FIG. 13 (a)) of the upper end of the opposite side wall of the soaking container 400, respectively. A hook 402 for hooking the latch 401 is provided below the four latches 401 in total.

  Further, as shown in the enlarged view of the S part in FIG. 13A (see FIG. 13D), the inner side surface 402 a of the hook 402, that is, the surface on which the latch 401 is hooked, faces the side wall of the seed container 400. Inclined.

  Note that the soaking container 400 contains a straw bag 410.

  As a result, after putting the straw bag 410 in each of the two soaking containers 400 (see FIG. 13A), one of the soaking containers 400 is stacked on the other by the crane 420, and the latch 401 of the soaking container 400 below is stacked. Is rotated upward and hooked on the hook 402 of the upper soaking container 400 (see FIG. 13B), and two soaking containers 400 can be put in one soaking tank 116 ( 13 (c)), the number of the immersion water tanks 116 can be reduced.

  Further, when the two soaking containers 400 are suspended by the crane 420 and submerged in the soaking water tank 116, the inner surface 402a of the hook 402 is inclined, so that the latch 401 is firmly in contact with the side wall of the soaking container 400, It is possible to prevent rattling of the connecting portion of the soaking container 400 stacked on the surface.

  Next, with reference to FIG. 14, vibration reduction of the seed pod dehydrator 500 will be described.

  FIG. 14 is a side view of the seed vat dehydrator 500.

  As shown in FIG. 14, a disc-like weight 502 having the same weight as the seed soup to be put into the basket 501 is also used as a central axis of rotation of the basket 501 below the basket 501 in which the soot seed dehydrator 500 is placed. It is attached to the weight rotation shaft 502a.

  A basket rotation shaft 501a protruding downward from the lower end of the basket 501 is connected to a basket rotation motor 501c via a basket rotation belt 501b.

  The weight 502 is connected to a weight rotation motor 502c that rotates the weight 502 in a direction opposite to the basket 501 via a weight rotation belt 502b.

  The basket rotation shaft 501a is loosely connected to the weight rotation shaft 502a.

  As a result, the weight 502 can be rotated in the opposite direction to the rotation direction of the basket 501, so that vibration during dehydration is canceled and vibration can be reduced.

  Therefore, it is possible to reduce the diameter of the anchor bolt that fixes the seed soaker 500 to the floor, and to reduce the number of anchor bolts.

  In the above embodiment, the photoelectric sensor is used to detect the position of the second holding claw 164b in the height direction, and after the set time of the delay timer corresponding to the detection result has elapsed, the stage stacking seedling box The configuration for issuing a release command for releasing the grip of Cα has been described. However, the present invention is not limited to this. For example, at least one of the first holding claws 164a and the second holding claws 164b and a predetermined arm of the loading arm 119 A CCD camera (not shown) that acquires, as image data, the “interval” in the height direction of the uppermost stage of the stage stacking seedling box Cα that has already been transferred to the position, the upper side surface of the loading rack support second pillar 129B The “interval” may be calculated from the image data. In the case of this configuration, the control unit 110a lowers the pair of holding claws, calculates the “interval” from the image data acquired by the CCD camera, and determines that the calculated value has reached a predetermined value. The release command for releasing the holding of the stacked seedling box Cα is issued, and the predetermined value is configured to be adjustable. Note that the first photoelectric sensor 301 described above may be used as the timing for issuing a release command when the staged seedling box Cα is first loaded at a predetermined position of the loading arm 119. Here, the CCD camera corresponds to an example of the interval detection unit of the present invention.

  In the above embodiment, a configuration has been described in which the reflection plate 164b3 is attached to the second holding claw 164b and the position of the second holding claw 164b in the height direction is directly detected using a photoelectric sensor. For example, the position of the holding claw can be obtained by attaching a reflecting plate to the actuator rotating shaft 126c or the like disposed on the upper part of the movable arm 126a or 126b and detecting the position of the actuator rotating shaft 126c with a photoelectric sensor. It may be configured to indirectly detect.

  Moreover, in the said embodiment, the timing which the loading apparatus 118 cancel | releases the holding | grip of the stage stacking seedling box C (alpha) in all the 1st-3rd loading operations on the mounting plate 119b of the loading arm 119, Although the configuration in which the first holding claw 164a and the second holding claw 164b are different from each other has been described, the present invention is not limited to this. For example, in the first stacking operation, all the holding claws on both sides are opened simultaneously, and the second and subsequent times. The configuration may be such that two holding claws on one side are opened first, and two holding claws on the opposite side are opened after a predetermined time. Thereby, it becomes possible to prevent the stacking error between the stacked seedling boxes Cα.

  Further, in the above embodiment, the configuration has been described in which the upper surface 164b1 and the lower surface 164b2 of the second holding claw 164b are inclined, and the upper surface and the lower surface of the first holding claw 164a are similarly inclined. However, the configuration is not limited thereto, and for example, a configuration in which one of the upper surface and the lower surface is inclined may be employed.

  In the above embodiment, the control unit 110a determines the operation start timing of the first pneumatic actuator 162a based on the detection result of the reflected light by the first photoelectric sensor 301 to the third photoelectric sensor 303. In addition to performing the control, the operation of the first pneumatic actuator 162a is started, and after the predetermined time has elapsed, the second control for starting the operation of the second pneumatic actuator 162b has been described. For example, the configuration may be such that either one of the first control and the second control is not performed.

  Further, in the above-described embodiment, after the operation of the first pneumatic actuator 162a is started, the operation of the second pneumatic actuator 162b is started after a predetermined time has elapsed, so that the loading device 118 can Although the structure which makes the timing which cancels | releases the raising seedling box C (alpha) differ by the 1st holding claw 164a and the 2nd holding claw 164b was demonstrated, not only this but the operation | movement of the 1st pneumatic actuator 162a is started, for example The timing is released at the same time as the timing of starting the operation of the second pneumatic actuator 162b, and the operating speed of the first pneumatic actuator 162a is faster than the operating speed of the second pneumatic actuator 162b. Timing of the first holding claw 164a and the second holding claw 164b In may be configured to be different.

  Moreover, in the said embodiment, although the stacking apparatus 118 demonstrated the case where it was set as the structure which piles up the stacking seedling box C (alpha) in which the seedling box C was stacked in multiple steps, it is not restricted to this, For example, this invention When repeating the operation of holding a single seedling box C by a pair of holding claws arranged opposite to each other and transferring the seedling box C to a predetermined position, the stacking device of the stacking apparatus is placed on the seedling box C that has already been transferred to the predetermined position. The structure which piles up the seedling box C of this may be sufficient. Even in this case, as described above, since the seedling box can be prevented from suddenly falling, it is possible to prevent the soil in the seedling box from being close to the soil, and the stacking posture is improved.

  Further, in the above embodiment, the stacking device 118 forms the stacked stacking seedling box group Cβ by stacking the stacked stacking seedling box Cα at a predetermined position of the stacking arm 119, and then the stacking arm 119 is moved. Although the structure which is moved and transferred onto the emergence carriage 111 has been described, the present invention is not limited to this, and for example, a structure in which the pallet 600 or the emergence carriage 111 is directly stacked may be used (see FIG. 15). FIG. 15 is a schematic plan view of a loading mechanism using the second loading device 618 that loads directly on the pallet 600. In this case, as shown in FIG. 15, the second stacking device 618 forms the stacked product seedling box group Cβ by stacking the stacked product seedling box Cα at a predetermined position of the pallet 600 a plurality of times. Although the pair of movable arms of the second loading device 618 is not shown, the configuration is basically the same as the pair of movable arms 126a and 126b (see FIGS. 4 and 5) of the above embodiment.

  Here, the order of stacking the stacked seedling box Cα at a predetermined position of the pallet 600 is preferentially stacked from the side far from the second stacking device 618, that is, from the back side of the pallet 600. In FIG. 15, in the pallet 600 at the center position, the stacked seedling box group Cβ21 is first stacked at the innermost position, and then the stacked seedling box group Cβ22 is stacked at the front side position. After that, after the stacked seedling box group Cβ23 is further stacked at the front side position, the stacked seedling box group Cβ24 is finally stacked at the frontmost position. In addition, the left pallet 600 shows a state where the stacking of the stacked seedling box group Cβ is completed.

  Further, in the loading mechanism of FIG. 15, the configuration of directly stacking on the pallet 600 has been described. However, the configuration is not limited thereto, and for example, a configuration of directly stacking on the budding carriage 111 instead of the pallet 600 may be used.

  Moreover, in the loading apparatus of the said embodiment, when it stops abnormally in the middle of loading, it memorize | stores how far it was loaded, and it is the structure which starts loading based on the memorize | stored information at the time of work resumption. There may be.

  INDUSTRIAL APPLICABILITY The present invention can provide a seedling system that prevents a sudden drop of a seedling box, and thus is useful as a seedling system in a seeding facility or a seedling facility.

DESCRIPTION OF SYMBOLS 101 Seedling box supply apparatus 102 Seeding equipment 103 Seedling box conveyance conveyor 104 Floor soil supply apparatus 105 Irrigation apparatus 110 Stacking / loading / transfer equipment 111 Emergence cart 117 Stacking apparatus 118 Loading apparatus 119 Loading arm 120 Transfer mechanism 143 Nursery box transshipment device C Nursery box Cα Tiered seedling box Cβ Tiered seedling box group

Claims (8)

When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, A stacking device (118) for stacking the next seedling box (C) or the staged stacking seedling box (Cα) on the seedling box (C) or the staged stacking seedling box (Cα) that has already been transferred to a predetermined position. )
The pair of holding claws (164a) for holding the seedling box (C) or the staged stacking seedling box (Cα) when the stacking apparatus stacks the seedling box (C) or the staged stacking seedling box (Cα). 164b), one of the holding claws (164a) is separated from the seedling box (C) or the staged stacking seedling box (Cα) before the other holding claws (164b). Nursery system. When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, A stacking device (118) for stacking the next seedling box (C) or the staged stacking seedling box (Cα) on the seedling box (C) or the staged stacking seedling box (Cα) that has already been transferred to a predetermined position. )
The seedling raising system characterized in that the upper surface or the lower surface of the pair of holding claws (164a, 164b) facing each other is inclined toward the tip in a side view. When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, A stacking device (118) for stacking the next seedling box (C) or the staged stacking seedling box (Cα) on the seedling box (C) or the staged stacking seedling box (Cα) that has already been transferred to a predetermined position. )When,
A position detector (302, 303) for directly or indirectly detecting the position in the height direction of the holding claws (164a, 164b);
Release the holding of the seedling box (C) or the staged stacking seedling box (Cα) with respect to the loading device (118) after a predetermined time has elapsed since the position detection unit (302, 303) detected the position. A controller (110a) for issuing a release command to
The control unit (110a) is configured to be capable of adjusting the predetermined time, and the seedling raising system is characterized in that When repeating the operation of holding the seedling box (C) or the stacked seedling box (Cα) stacked in a plurality of stages by a pair of holding claws (164a, 164b) arranged opposite to each other and transferring them to a predetermined position, The next seedling box (C) or the stacked seedling box (Cα) is stacked on the seedling box (C) or the stacked seedling box (Cα) that has already been transferred to a predetermined position, and the stacked seedling box is stacked. A loading device (118) forming a group (Cβ);
An interval detection unit that detects an interval in the height direction between the holding claws (164a, 164b) and the seedling box (C) or the stacked seedling box (Cα) that has already been transferred to the predetermined position;
When the holding claws (164a, 164b) are moved downward and it is determined that the interval detected by the interval detection unit has reached a predetermined interval, the seedling box (C) or the staged stacking seedling box (Cα) And a controller (110a) for issuing a release command for releasing the grip of
The control unit (110a) is configured to be capable of adjusting the predetermined interval. A stacking device (117) for stacking a plurality of the seedling boxes conveyed by the seedling box transport conveyor (103) to prepare the stacked product seedling boxes (Cα);
The stacking device (118) stacks the next stacked seedling box (Cα) on the stacked seedling box (Cα) that has already been transferred to the predetermined position, and the stacked product seedling box group (Cβ). A device that forms
A transfer device (119, 120) for transferring the stage stacking seedling box group (Cβ) stacked by the stacking device (118) to a predetermined transfer position;
A soil removal device for removing the soil placed on the transfer device (119, 120) or the attached soil;
The seedling raising system according to any one of claims 1 to 4, wherein the seedling raising system is provided. The stacking device (117) has a stacking guide member (180, 190) that contacts a side portion of the seedling boxes to be stacked and holds the posture of the stacked seedling boxes. And
The stacking guide members (180, 190) are configured to be retractable out of the transfer path when the loading device (118) grips and transfers the stacking seedling box to the predetermined position. The seedling raising system according to claim 5, wherein   The seedling raising system according to claim 5 or 6, wherein the stacking device (117) is configured to be able to change the number of the seedling boxes to be stacked. A nursery box transshipment device (143) for taking out the nursery box from the stage stacking nursery box group stacked by the loading device (118) and stacking it on a shelf of a carriage;
The nursery box transshipment device (143)
A transshipment transport device (145) for transporting the seedling box taken out from the staged seedling box group;
Extrusion devices (160a, 160b) for extruding the seedling box conveyed by the transshipment conveying device (145) toward the shelves of the carriage;
Regulation which has a contact part (173) which can contact the side of the seedling box pushed out toward the shelf by the extrusion device (160a, 160b) and regulates the stop position of the seedling box by the contact part Devices (171a, 171b, 172a, 172b),
The seedling system according to any one of claims 5 to 7, wherein the contact portion (173) is configured to be retractable outside a movement path of the carriage.

Images