JP2018068179A - Transplantation hand unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide transplantation hand units which can arrange the entire root of a seedling extending and spreading outward from the lower surface of a seedbed piece and which can insert the entire root into a hole of a transplanting destination, at the time of transplantation.SOLUTION: A transplantation hand unit 20 is provided in a transplanting device that transplants a seedling S so as to be able to pinch a seedbed piece N in which seedling S is planted, and comprises a first hand 40 which transplants the pinched seedbed piece N, and a second hand 50 that can be contacted with a root Ne of the seedling S so as to pinch the root Ne of the seedling S, in order to align the root Ne of the seedling S spreading and extending outward from the lower surface of the seedbed piece N pinched by the first hand 40. The first hand 40 and the second hand 50 is configured to be relatively movable in longitudinal direction Z.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a transplantation hand unit used when transplanting a plant seedling, for example.

  Conventionally, for example, a hydroponic seedling transplanting device described in Patent Document 1 is known. In this transplantation device, when transplanting a plant seedling planted in a urethane block (nursery bed piece) into a hole of a transplant destination such as a breeding panel, a pair of clamping plates (transplantation hands) are used to transfer a medium seedling (a seedling stem part). The urethane block is inserted into the hole by sandwiching and lowering from above the hole. Further, in that case, the seedlings extending so as to spread outward from the lower surface of the urethane block by ejecting water downward from the outlet of the water guide pipe fixed vertically inside the holding plate. The tips of the roots of the seedlings are sharpened like the tip of a brush, which makes it possible to prevent the roots of the seedlings from being caught on the periphery of the hole of the transplantation destination.

JP 2004-242652 A

  By the way, at the stage of transplanting, the roots of seedlings often extend so as to spread radially outward from the lower surface of the urethane block. Therefore, in the configuration in which water is jetted downward from the outlets of the water guide pipes provided inside the pair of opposing sandwiching plates, water is applied to the entire roots that spread radially outward from the lower surface of the urethane block. It was difficult to spread, and there was a possibility that the whole root of the seedling could not be aligned and inserted into the hole of the transplant destination as desired.

  The present invention has been made in view of such circumstances, and its purpose is to align the entire roots of the seedlings that extend so as to spread outward from the lower surface of the seedbed pieces during transplantation, and within the holes of the transplant destination. It is to provide a transplantation hand unit that can be inserted.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A transplanting hand unit that solves the above problem is a transplanting hand unit provided in a transplanting apparatus for transplanting seedlings, and is provided so as to be able to sandwich a seedbed piece on which the seedling is planted, and transplants the seedbed piece that has been sandwiched. A hand and the root of the seedling are contacted so as to sandwich the root of the seedling so as to align the root of the seedling extending so as to spread outward from the lower surface of the seedbed piece sandwiched by the first hand A second hand that is capable of moving relative to each other in the vertical direction.

  According to this configuration, the second hand sandwiches the root of the seedling root extending so as to spread outward from the lower surface of the seedbed piece sandwiched by the first hand, and the first hand and the second hand are in the vertical direction. By moving relatively away from each other, the second hand moves from the root of the seedling root toward the tip of the root with respect to the seedbed piece. That is, since the second hand moves from the root to the tip so as to handle the root of the seedling with respect to the seedbed piece, the roots of the seedling are aligned. Therefore, the whole roots of the seedlings extending so as to spread outward from the lower surface of the seedbed piece at the time of transplantation can be aligned and inserted into the hole at the transplantation destination.

In the transplant hand unit, it is preferable that the second hand is configured to be movable in the vertical direction.
According to this configuration, for example, when the transplantation hand unit is attached to the transplantation device so as to be movable in the vertical direction, the second hand can be moved in the vertical direction without providing a mechanism for moving the first hand in the vertical direction. By providing a moving mechanism, the seedling roots can be aligned to transplant the seedling. That is, the mechanism in which the first hand and the second hand move relatively in the vertical direction can be simplified.

In the transplant hand unit, it is preferable that the first hand is configured to be movable in the vertical direction.
According to this configuration, for example, when the transplantation hand unit is fixed and attached so as not to move in the vertical direction with respect to the transplantation device, the first hand can be provided without providing a mechanism for moving the second hand in the vertical direction. It is possible to transplant seedlings by arranging the roots of the seedlings just by providing a mechanism that moves in the vertical direction. That is, the mechanism in which the first hand and the second hand move relatively in the vertical direction can be simplified.

In the transplanting hand unit, it is preferable that the first hand and the second hand are configured to be movable in the vertical direction.
According to this configuration, since the first hand and the second hand can be independently moved up and down, even when the transplantation hand unit is attached to the transplantation device so as to be movable in the vertical direction, Even when fixed and attached so as not to move, the seedlings can be transplanted with the roots of the seedlings aligned. That is, it can be set as a highly versatile structure in the attachment method to the transplantation device.

In the transplanting hand unit, it is preferable that the second hand has an encircling part that encloses the roots of the seedlings when the roots of the seedlings are sandwiched.
According to this structure, the surrounding part surrounds the roots of the seedling, so that the roots of the seedling can be aligned without applying a large load.

  According to the present invention, the whole roots of the seedlings extending so as to spread outward from the lower surface of the seedbed piece at the time of transplantation can be aligned and inserted into the hole at the transplantation destination.

The front view which shows typically one Embodiment of the transplant apparatus provided with a transplant hand unit. The perspective view of a transplant hand unit. The perspective view of a 1st hand and a 2nd hand. The perspective view when a 2nd hand handles the root of a seedling. The perspective view in the state where the roots of the seedling were aligned by the second hand. The perspective view when transplanting the seedling with which the root was arranged. The perspective view when inserting a seedling into the hole of the 2nd panel.

Hereinafter, an embodiment of a transplantation device including a transplantation hand unit will be described with reference to the drawings.
As shown in FIG. 1, the transplanting device 11 includes a transplanting mechanism 12 that transplants a plant seedling S and a transport mechanism 13 that transports the seedling S. In addition, the transplant apparatus 11 in this embodiment is an apparatus which transplants the seedling S planted in the seedbed piece N which is a sponge-like block comprised, for example with urethane etc. with the seedbed piece N together.

  The transport mechanism 13 includes a first transport unit 15 that transports a first panel 14 on which a plurality of seedlings S before transplantation are placed, a second transport unit 17 that transports a second panel 16 that is a transplant destination of the seedlings S, and have. The first panel 14 is provided in a tray shape and has a plurality of grooves 18 penetrating in the vertical direction Z on the bottom wall thereof. In the seedling S placed on the first panel 14, the root Ne of the seedling S extends downward from the lower surface of the seedbed piece N via the groove 18. On the other hand, the 2nd panel 16 is provided in plate shape, and has the some hole 19 penetrated to the up-down direction Z from the upper surface to the lower surface. That is, the transplanting mechanism 12 transplants the seedling S from the first panel 14 to the second panel 16 by inserting the seedbed piece N placed on the first panel 14 into the hole 19 of the second panel 16. The hole 19 provided in the second panel 16 is opened in a circular shape.

  The 1st conveyance part 15 and the 2nd conveyance part 17 are comprised by the conveyor etc., for example, and are arrange | positioned so that it may mutually adjoin. Moreover, the 1st conveyance part 15 and the 2nd conveyance part 17 are conveying the 1st panel 14 and the 2nd panel 16 in the mutually passing direction, respectively. The first transport unit 15 and the second transport unit 17 may be configured to transport the first panel 14 and the second panel 16 in the same direction, respectively. Here, in this embodiment, a direction along the direction in which the transport mechanism 13 transports the first panel 14 and the second panel 16 is referred to as a depth direction X.

  The transplanting mechanism 12 includes a transplanting hand unit 20 having a hand for transplanting the seedling S, and a moving mechanism 30 that moves the transplanting hand unit 20. The moving mechanism 30 is installed on the pair of frames 31 so as to straddle the transport mechanism 13 and the pair of frames 31 disposed so as to sandwich the transport mechanism 13 in the width direction Y intersecting the depth direction X and the vertical direction Z. It has the 1st rail part 32 and the 1st slider 33 attached to the 1st rail part 32 so that a movement is possible. The moving mechanism 30 is attached to the first slider 33 on the opposite side to the side where the first rail portion 32 is located, and is attached to the second rail portion 34 so as to be movable. And a second slider 35. The first rail portion 32 extends along the width direction Y, and the first slider 33 is movable along the first rail portion 32 in the width direction Y. The second rail portion 34 extends in the vertical direction Z, and the second slider 35 is movable in the vertical direction Z along the second rail portion 34.

  The transplantation hand unit 20 is attached to the second slider 35. In other words, the transplantation hand unit 20 is movable in the vertical direction Z by the second rail portion 34 and the second slider 35. The transplantation hand unit 20 can be moved in the width direction Y together with the second rail portion 34 and the second slider 35 by the first rail portion 32 and the first slider 33. In summary, the transplantation hand unit 20 can be moved along the width direction Y and the vertical direction Z by the moving mechanism 30 above the transport mechanism 13.

  As shown in FIG. 2, the transplantation hand unit 20 can sandwich the first hand 40 capable of sandwiching the seedbed piece N and the root Ne of the seedling S extending downward from the seedbed piece N sandwiched by the first hand 40. A second hand 50. The transplantation hand unit 20 has a support plate 21 that supports the first hand 40 and the second hand 50. The support plate 21 is provided so as to extend in the up-down direction Z, and the back side facing the second rail portion 34 is attached to the second slider 35. A first hand 40 is attached to the support plate 21 via a first attachment portion 60 on the front surface opposite to the back surface in the depth direction X. The first mounting portion 60 includes a plurality of (four in the present embodiment) rods 61 extending along the depth direction X from a position close to the lower end of the support plate 21, and L along the vertical direction Z and the depth direction X. It is comprised with the metal fitting 62 bent and extended in the shape of a character. The metal fitting 62 has a portion extending along the vertical direction Z attached to the tip of a rod 61 extending from the support plate 21, and a portion extending along the depth direction X is attached to the first hand 40. That is, in the present embodiment, the first hand 40 is fixed to the support plate 21.

  An elevating mechanism 22 that allows the first hand 40 and the second hand 50 to move relative to each other in the vertical direction Z is attached to the front surface of the support plate 21. The elevating mechanism 22 includes a guide rail portion 23 that extends along the vertical direction Z, and a moving body 24 that is movably attached to the guide rail portion 23. The guide rail portion 23 is provided over substantially the entire length of the support plate 21 in the vertical direction Z, and its lower end portion extends so as to pass through a space surrounded by the rod 61 and the metal fitting 62 of the first mounting portion 60. . The second hand 50 is attached to the movable body 24 that can move in the vertical direction Z along the guide rail portion 23 via the second attachment portion 70. That is, in the present embodiment, the second hand 50 is movable in the vertical direction Z with respect to the support plate 21.

  The second mounting portion 70 is positioned by the fixing plate 71 fixed to the moving body 24, the connecting plate 72 connected to the fixing plate 71, the positioning member 73 attached to the connecting plate 72, and the positioning member 73. And a metal fitting 74 attached to the connecting plate 72. The metal fitting 74 extends so as to be bent in an L shape along the vertical direction Z and the depth direction X, and a portion extending in the vertical direction Z is attached to the connecting plate 72 via the positioning member 73, and extends along the depth direction X. The extending part is attached to the second hand 50. Then, the second hand 50 moves up and down by the elevating mechanism 22 attached to the support plate 21, thereby moving relative to the first hand 40 fixed to the support plate 21 in the vertical direction Z.

  As shown in FIG. 3, the first hand 40 has a pair of sandwiching arms 41 for sandwiching the seedbed piece N and a drive unit 42 for driving the sandwiching arms 41. The drive part 42 is comprised, for example with an actuator etc., The metal fitting 62 which comprises the 1st attaching part 60 is attached to the upper surface with the screw which is not shown in figure. The drive unit 42 is connected to each clamping arm 41 via a plate-like transmission member 43. The transmission member 43 is screwed to the holding arm 41 with a screw (not shown), and is provided so as to be rotatable about a base end side on which the drive unit 42 is located. Then, the drive unit 42 changes the distance between the tips of the sandwiching arms 41 so that the pair of sandwiching arms 41 moves symmetrically in the width direction Y. That is, the first hand 40 is configured so that the holding arm 41 can be opened and closed, and the driving arm 42 is in a state in which the holding arm 41 is closed so as to reduce the distance between the tips of the holding arm 41, thereby Pinch. In addition, the 1st hand 40 in FIG. 3 has the state which the clamping arm 41 opened.

  The clamping arm 41 constituting the first hand 40 is provided so as to extend along the depth direction X, and is opposite to the connection portion 44 connected to the transmission member 43 and the side where the drive portion 42 is located in the connection portion 44. It has the extending | stretching part 45 provided so that it may extend from the lower part of the end surface used as the side, and the holding part 46 which is attached to the lower surface of the extending | stretching part 45, and can hold | grip the seedbed piece N. FIG. The gripping portion 46 is provided so as to be bent in an L shape downwardly after extending along the depth direction X from the extending portion 45. And the 1st hand 40 clamps the seedbed piece N because the part extended toward the downward direction in the holding part 46 contacts the seedbed piece N. As shown in FIG. In addition, in this embodiment, although the connection part 44 and the extending | stretching part 45 are provided integrally, you may provide as a separate member, respectively.

  The second hand 50 is a contact arm that contacts the root Ne of the seedling S so as to sandwich the root Ne of the seedling S so as to align the root Ne of the seedling S extending from the lower surface of the seedbed piece N held by the first hand 40. 51 and a drive unit 52 for driving the contact arm 51. The drive part 52 is comprised by an actuator etc., for example, The metal fitting 74 which comprises the 2nd attachment part 70 is attached to the upper surface with the screw which is not shown in figure. The drive unit 52 is connected to each contact arm 51 via a plate-shaped transmission member 53. Here, the drive unit 52 and the transmission member 53 of the second hand 50 have the same configuration and function as the drive unit 42 and the transmission member 43 of the first hand 40. In other words, the second hand 50 is configured so that the contact arm 51 can be opened and closed, and the contact arm 51 is closed so that the drive unit 52 reduces the distance between the tips of the contact arms 51, so that the nursery piece N It contacts the root Ne of the seedling S extending from the lower surface of the. In addition, the 2nd hand 50 in FIG. 3 has the contact arm 51 open.

  The contact arm 51 constituting the second hand 50 is provided so as to extend along the depth direction X, and is opposite to the connection portion 54 connected to the transmission member 53 and the side where the drive portion 52 is located in the connection portion 54. The extending part 55 provided so that it may extend from the lower part of the end surface used as the side, and the contact part 56 which is attached to the lower surface of the extending part 55 and can contact the root Ne of the seedling S is provided. The contact portion 56 extends from the extending portion 55 along the depth direction X, and the tip portion 57 is provided at a position where it overlaps the grip portion 46 of the first hand 40 in the vertical direction Z.

  The front end portion 57 of the contact portion 56 is provided wide in the width direction Y so that portions thereof overlap each other in the vertical direction Z when the second hand 50 is in a closed state. The tip portion 57 is provided with a guide portion 58 that guides the root Ne of the seedling S so that the root Ne of the seedling S is bundled when the second hand 50 sandwiches the root Ne of the seedling S. The guide part 58 is provided in the contact part 56 so as to face each other in the width direction Y, and is provided so as to cut out the tip part 57 of the contact part 56 in an L shape. And the guide part 58 which mutually opposes forms the surrounding part 59 which surrounds the root Ne of the seedling S, when a part of tip part 57 overlaps in the up-down direction Z (refer FIG. 4). That is, the second hand 50 has an enclosing portion 59 that encloses the root Ne of the seedling S so as to be bundled.

Next, the operation of the transplantation hand unit configured as described above will be described.
As shown in FIG. 4, when the transplanting hand unit 20 transplants the seedling S, the gripping portion 46 of the first hand 40 sandwiches and holds the seedbed piece N from above. The seedbed piece N sandwiched between the first hands 40 is elastically deformed with the contact of the grip portion 46. Then, the second hand 50 comes into contact with the root Ne of the seedling S so as to sandwich the root Ne of the seedling S extending from the lower surface of the seedbed piece N held by the first hand 40. At this time, in the second hand 50, the contact arm 51 is closed at a position directly below the nursery bed piece N in the vertical direction Z so as to sandwich the root of the seed Ne at the root Ne. The root Ne of the seedling S extending from the lower surface of the seedbed piece N is surrounded by the surrounding portion 59 formed by the guide portion 58 provided at the tip portion 57 of the contact portion 56, and the root is bundled by the surrounding portion 59. It becomes a state.

  As shown in FIG. 5, when the root Ne of the seedling S is bundled by the second hand 50, the first hand 40 and the second hand 50 relatively move away from each other in the vertical direction Z. Specifically, the second hand 50 that sandwiches the root Ne of the seedling S moves downward by the lifting mechanism 22. At this time, the second hand moves downward with respect to the seedbed piece N sandwiched by the first hand 40, so that the surrounding portion 59 surrounds the root Ne of the seedling S and the root Ne of the seedling S Move from to the tip. That is, the second hand moves from the root of the seedling S to the tip so as to handle the root Ne of the seedling S. Therefore, the root Ne of the seedling S is aligned by the second hand 50. Then, the seedbed piece N in which the roots Ne of the seedling S are aligned is moved together with the transplanting hand unit 20 by the moving mechanism 30 toward a position directly above the hole 19 of the second panel 16 as a transplant destination of the seedling S. .

  As shown in FIG. 6, when the seedbed piece N moves to a position directly above the hole 19 of the second panel 16, the contact arm 51 of the second hand 50 that bundles the root Ne of the seedling S opens, so that the first The two hands 50 are not in contact with the root Ne of the seedling S. Then, the second hand 50 that is not in contact with the root Ne of the seedling S is moved upward so that the second hand 50 is positioned at substantially the same height as the first hand 40 by the lifting mechanism 22 with the contact arm 51 open. Move towards.

  As shown in FIG. 7, after the second hand 50 has moved to approximately the same height as the first hand 40, the transplanting hand unit 20 is moved downward by the moving mechanism 30 so as to sandwich the seedbed piece N. The hand 40 also moves downward, and the seedbed piece N is inserted into the hole 19 of the second panel 16 together with the grip portion 46 of the first hand 40 from above. At this time, since the root Ne of the seedling S extending from the lower surface of the seedbed piece N is preliminarily aligned by the second hand 50, when the seedbed piece N is inserted into the hole 19, the root Ne of the seedling S becomes the edge of the hole 19. There is a reduced risk of contact. Then, after inserting the seedbed piece N into the hole 19, the transplanting hand unit 20 opens the holding arm 41 of the first hand 40, so that the first hand 40 is not in contact with the seedbed piece N, and the seedbed piece N Release the pinch. When the holding of the seedbed piece N by the first hand 40 is released, the seedbed piece N returns to the original shape by the restoring force of the seedbed piece N itself in the hole 19 and is held by the second panel 16.

According to said embodiment, the following effects can be acquired.
(1) The second hand 50 sandwiches the root Ne of the seedling S extending so as to spread outward from the lower surface of the seedbed piece N sandwiched by the first hand 40, and the first hand 40 and the second hand 50 Are moved relative to each other in the vertical direction Z, whereby the second hand 50 moves relative to the seedbed piece N from the root Ne of the seedling S toward the tip of the root Ne. That is, since the second hand 50 moves from the root to the tip so as to handle the root Ne of the seedling S with respect to the seedbed piece N, the root Ne of the seedling S is aligned. Therefore, the whole root Ne of the seedling S extending so as to spread outward from the lower surface of the seedbed piece N at the time of transplantation can be aligned and inserted into the transplantation destination hole 19.

  (2) The second hand 50 is configured to be movable in the vertical direction Z. Therefore, when the transplanting hand unit 20 is attached to the transplanting device 11 so as to be movable in the vertical direction Z, the second hand 50 can be moved in the vertical direction Z without providing a mechanism for moving the first hand 40 in the vertical direction Z. It is possible to transplant the seedlings S by arranging the root Ne of the seedlings S only by providing a mechanism for moving at. That is, the mechanism in which the first hand 40 and the second hand 50 move relatively in the vertical direction Z can be simplified.

(3) When the second hand sandwiches the root Ne of the seedling S, the surrounding portion 59 surrounds the root Ne of the seedling S, so that the root Ne of the seedling S can be aligned without applying a large load.
In addition, you may change the said embodiment as follows. Further, the following modifications may be combined as appropriate.

  The transplant hand unit 20 may be configured such that the first hand 40 can move in the vertical direction Z instead of the configuration in which the second hand 50 can move in the vertical direction Z. According to this modification, in addition to the effects (1) and (3) in the above embodiment, the following effects can be obtained.

  (4) When the transplantation hand unit 20 is fixed and attached to the transplantation device 11 so as not to move in the vertical direction Z, the first hand can be provided without providing a mechanism for moving the second hand 50 in the vertical direction Z. The seedling S can be transplanted by arranging the root Ne of the seedling S by simply providing a mechanism in which the 40 moves in the vertical direction Z. That is, the mechanism in which the first hand 40 and the second hand 50 move relatively in the vertical direction Z can be simplified.

  The transplantation hand unit 20 may be configured such that the first hand 40 and the second hand 50 can move in the vertical direction Z, respectively. According to this modification, in addition to the effects (1) and (3) in the above embodiment, the following effects can be obtained.

  (5) Since the first hand 40 and the second hand 50 can move up and down independently, even if the transplantation hand unit 20 is attached to the transplantation device 11 so as to be movable in the vertical direction Z, Even in the case of being fixed and attached so as not to move in the direction Z, the seedling S can be transplanted with the root Ne of the seedling S being aligned. That is, it can be set as a highly versatile structure in the attachment method to the transplantation device 11.

  -The surrounding part 59 does not need to be provided in the 2nd hand 50. FIG. In this case, at least the tip 57 of the contact arm 51 of the second hand 50 can be elastically deformed in order to reduce the burden on the root Ne of the seedling S when the second hand 50 sandwiches the root Ne of the seedling S. It is preferable to be made of a soft material. Further, in order to reduce the burden on the root Ne of the seedling S when the second hand 50 moves so as to handle the root Ne of the seedling S, at least the distal end portion 57 of the contact arm 51 of the second hand 50 is It is preferable to be made of a material having good slipperiness.

-The guide part 58 which the 2nd hand 50 has may be provided, for example in circular arc shape.
The first hand 40 is not limited to a configuration that opens and closes by rotating around the end of the transmission member 43, but a configuration that opens and closes when the clamping arm 41 moves so as to slide along the width direction Y. Also good. The same applies to the second hand 50.

  The grip portion 46 of the first hand 40 does not necessarily have to be bent downward, and may simply be configured to extend along the depth direction X. In this case, it is preferable that the gripping portion 46 grips the upper end of the seedbed piece N.

  DESCRIPTION OF SYMBOLS 11 ... Transplantation device, 20 ... Transplantation hand unit, 40 ... 1st hand, 50 ... 2nd hand, 59 ... Surrounding part, N ... Nursery piece, Ne ... Root, S ... Seedling, Z ... Vertical direction.

Claims (5)

A transplanting hand unit provided in a transplanting device for transplanting seedlings,
A first hand that is provided so as to be able to sandwich a seedbed piece on which the seedling is planted, and transplants the sandwiched seedbed piece;
In order to align the roots of the seedlings extending so as to spread outwardly from the lower surface of the seedbed piece sandwiched by the first hand, a first contactable with the roots of the seedlings by sandwiching the roots of the seedlings. With 2 hands,
The transplanting hand unit is configured such that the first hand and the second hand can move relative to each other in the vertical direction.   The transplanting hand unit according to claim 1, wherein the second hand is configured to be movable in a vertical direction.   The transplanting hand unit according to claim 1, wherein the first hand is configured to be movable in a vertical direction.   The transplantation hand unit according to claim 1, wherein each of the first hand and the second hand is configured to be movable in the vertical direction.   The transplant according to any one of claims 1 to 4, wherein the second hand has an enclosing portion that encloses the roots of the seedlings when the roots of the seedlings are sandwiched. Hand unit.

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