JP2009065922A - Seedling transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling transplanter equipped with a mechanism enabling seedlings to be unloaded and planted in a relatively simple construction. <P>SOLUTION: The seedling transplanter is such as to be equipped with a pair of seedling planting discs 9 and 9 functioning, beneath a tray guide 4 conveying downward a seedling tray A replenished from an upper seedling tray feed port 4a, to nip, unload and receive, and then plant a seedling E in the seedling tray A in a farm after being turned. In this transplanter, the outer circumferential rims of the pair of seedling planting discs 9 and 9 are provided with concave and convex parts, and a seedling is nipped with the convex parts and then made to horizontally slide so as not to allow the seedling planting discs 9 and 9 to interfere with the seedling at the concave parts, thus giving the effect of enabling seedlings to be unloaded, one by one from the seedling tray A, with high accuracy. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a seedling transplanter, and in particular, can be used as a seedling transplanter that supplies seedling trays in a form grown using seedling trays in which seedling pots are arranged vertically and horizontally, and is mainly effective for transplanting vegetable seedlings. It relates to a seedling transplanting machine.

While the seedling tray grown in a square mat shape supplied from the seedling tray supply port at the top of the tray guide is transferred to the seedling planting device side at the bottom of the tray guide, the seedling in the seedling tray is taken out by the seedling extraction device. The present applicant has applied for a seedling transplanter equipped with a seedling supply device for performing seedling planting by the seedling planting device.
JP 2002-233218 A

  The seedling transplanting machine described in Patent Document 1 has a configuration in which the seedlings in the seedling tray transferred from the upper part to the lower part of the tray guide are taken out by the seedling extracting device and transferred to the seedling transplanting device. The seedling picking device clamps the seedlings in the seedling pot one by one, takes them out from the seedling tray, and supplies them to the supply cylinder of the seedling planting device. A predetermined seedling is obtained by combining a cam mechanism and a double crank mechanism. It is the structure which has a pair of right and left seedling extraction needles operated by the extraction locus. Further, the seedling planting device is composed of a pair of beak bodies whose lower ends are opened and closed in conjunction with an up and down operation by a link mechanism.

  As described above, both the seedling extraction device and the seedling planting device have complicated operation parts, so that the seedling transfer process from the seedling tray to the planting position in the field becomes complicated, and it is impossible to plant at high speed. There was a limit to work efficiency. In addition, there are difficulties in assembly, maintenance, manufacturing costs, and the like.

  Then, the subject of this invention is providing the seedling transplanting machine provided with the apparatus which can take out a seedling and plant a seedling with a comparatively simple structure.

  The invention described in claim 1 includes a tray guide (4) for transferring the seedling tray (A) supplied from the upper seedling tray supply port (4a) to the lower side, and a seedling tray below the tray guide (4). A pair of seedling planting discs (9, 9) that are rotated and planted in the field after the seedling (E) of (A) is sandwiched and taken out are received, and the seedling planting discs (9, 9) It is a seedling transplanting machine which provided the uneven | corrugated | grooved part in the outer periphery.

  In the seedling transplanting machine of the present invention, the seedling transplanting disk (9, 9) is gripped by the convex part of the outer peripheral edge of the pair of seedling planting disks (9, 9) that are rotated and planted in the field, and the seedling transplanting disk (9, 9) is Since the seedlings are horizontally slid without interfering with the seedlings, there is an effect that the seedlings can be accurately taken out from the seedling tray (A) one by one.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a left side view of a seedling planting device portion of the riding seedling planting machine of this embodiment, FIG. 2 is a plan view thereof, and FIG. 3 is a perspective view of a tray guide portion of the seedling planting device. 4 shows a side view of the internal mechanism of the tray guide portion, and FIG. 5 shows a front view of the internal mechanism of the tray guide portion.
In this specification, the left and right sides are referred to as the left side and the right side, respectively, in the forward direction of the seedling transplanter, the forward direction is referred to as the front side, and the reverse direction is referred to as the rear side.

  In the seedling transplanting machine of FIG. 1, a seedling transplanting device N is connected to a tractor-shaped PTO lift link 2 via a box-shaped frame 3, and the seedling transplanting machine uses a seedling tray A (FIG. 3). It is a machine that allows seedlings to be planted while being supplied, and is particularly suitable for transplanting vegetable seedlings. Further, in the seedling feeding device H of the seedling planting apparatus N of the present embodiment, a pair of tray guides 4 are arranged facing the front-rear direction of the machine body of the seedling planting machine, and the pair of tray guides 4 are arranged in the left-right direction of the machine body. 2 in parallel, and has a total of four tray guides 4.

  As shown in FIG. 3, the square seedling tray A is a tray that has been nurtured by arranging the seedling pots D vertically and horizontally, and the seedling transplanter receives the replenishment of the seedling tray A to each tray guide 4 and transfers it. On the other hand, the seedling E is delivered to the pair of seedling planting disks 9, 9, and the pair of seedling planting disks 9, 9 directly plant the seedling E in the field.

  Each tray guide 4 is provided with a mechanism for transferring a seedling tray A formed so as to detour back and forth in a U-shape when viewed from the side, and each of the seedling trays A guided to be transferred to the tray guide 4 A disc-shaped seedling planting disk 9 for receiving the seedling E from the seedling pot D and planting the seedling E in the field is disposed. Further, the seedling E of the seedling tray A can be supplied to the tray guide 4 of the seedling transplanting machine while the seedling E is grown. The tray guide 4 is configured to be inclined such that the bottom portion of the U-shape is positioned in the front lower portion and the upper end portions of the supply port 4a and the delivery port 4b are positioned rearward and upward in a side view.

  The tray guide 4 includes a guide plate 24 that receives and guides the bottom of the seedling tray A, a guide side plate 25 that guides the left and right edges of the seedling tray A, and a feed chain that is stretched around the guide side plate 25 and rotates. 26, etc., receiving the replenishment of the seedling tray A, and engaging and transferring the spacing portions of the pots D on the left and right sides of the seedling tray A by the lugs 27 arranged in the feed chain 26.

  The lower end portion of the guide plate 24 is curved toward the lateral sprocket shaft 28 of the feed chain 26, and a guide body 30 is disposed between the guide side plates 25 on the left and right sides on the outer periphery, so that the seedling tray as a whole. A can be guided to detour and transfer in a U shape in side view. The feed guide 29 formed at the center of the guide plate 24 fits the gap portion of the pot D at the bottom of the seedling tray A to guide the transfer in the feed direction.

  Such a tray guide 4 is supported by a guide rail 32 so as to be reciprocally movable left and right over the lateral width of the seedling tray A with respect to an attachment frame 31 integrally attached to the frame 3. The tray guide 4 is configured such that the guide 33 is fitted to a lead cam 34 supported by the mounting frame 31, and the tray guide 4 can be reciprocated in the lateral direction by the rotation of the lead cam 34. The feed chain 26 is driven by the transmission rotation of the sprocket shaft 28 and is also rotated by a pair of left and right crank arms 36 via a link mechanism 35.

  The crank arm 36 moves laterally integrally with the tray guide 4 and engages with drive arms 38 that are integral with the left and right sides of the drive shaft 37 of the lead cam 34 that rotates at a fixed position with respect to the mounting frame 31. And is driven intermittently. Thus, the seedling tray A is vertically transferred by one row of the seedling pot D at a position where the tray guide 4 is moved to the left lateral end and the right lateral end.

  A seedling E is pushed out from the seedling tray A into the tray guide 4 and is sandwiched between the tips of a pair of seedling planting discs 9 and 9 that rotate in the direction of arrow F (see FIG. 1). The discs 9 and 9 rotate toward the field and plant and release the seedling E sandwiched between the fields.

  While the seedling E of the seedling tray A replenished from the seedling tray supply port 4a at the upper part of the tray guide 4 is transferred to the lower seedling planting disk 9, seedling planting is performed by the seedling planting disk 9 and seedling supply is performed. The subsequent empty tray B is sent out by being detoured in a U-turn form to a delivery port 4b formed on the front side or the rear side of the supply port 4a. Further, a guide body 44 that supports and guides the delivery of the empty tray B from the rear end portion of the guide side plate 25 to the rear upper side is provided at the delivery port 4b.

It is set so that the seedling tray A can be replenished at the supply port 4a when the delivery end of the empty tray B reaches the delivery port 4b of the tray guide 4.
In the state where the delivery end of the empty tray B has reached the delivery outlet 4b portion of the tray guide 4, the transport tip of the seedling tray A next to the empty tray B is the seedling extraction position X (see FIG. It is set so that it is located slightly before (see 1).

  Thus, when the seedling tray A is supplied to the supply port 4a of the tray guide 4 at the time of seedling planting work, the seedling tray A is transferred to the delivery port 4b side by detour around the U-turn portion by being transferred to the tray guide 4. In addition, the seedling planting operation by the seedling planting disk 9 is received, and the tray 4 is sent to the delivery port 4b as an empty tray B. In a state where the delivery end of the empty tray B has reached the delivery port 4b, since a new seedling tray A can be supplied to the supply port 4a, the operator can send the delivery end of the empty tray B to the delivery port 4b. It is possible to replenish the seedling tray A so as not to cause a stock loss in the planting operation by confirming that the seedling tray A has been reached or confirming the state in which the seedling tray A can be replenished at the supply port 4a. .

  In this way, it is possible to determine whether or not the seedling tray A can be replenished by monitoring the seedling tray A and the empty tray B on either the supply port 4a or the outlet 4b before and after the tray guide 4 in the U-turn form, Work operability can be facilitated. In particular, in a configuration in which the tray guide 4 is arranged at a relatively high position, and the operation view in the front-rear direction of the operator is blocked, for example, even if the state of the front supply port 4a is not visible, only the state on the delivery port 4b side is used. The replenishment work of the seedling tray A can be performed while watching.

As shown in the side view of FIG. 6 (a) and the cross-sectional view taken along line AA of FIG. 6 (a) in FIG. 6 (b), the seedling planting disc 9 has a rubber portion on the outer periphery of the metal disk 9a. 9b is attached, and consists of a pair of disk plates as shown in FIG. 6 (b). Further, an unevenness is provided on the outer peripheral edge of the seedling planting disc 9 in a side view, the seedling is grasped by the convex portion of the disc 9, and the seedling planting disc (9, 9) is not interfered with the seedling by the concave portion. Slide sideways.
Therefore, the uneven portion on the outer peripheral edge of the disk 9 has an effect of accurately picking out seedlings from the seedling tray (A) one by one.

  As shown in FIGS. 1 and 2, a pair of seedling planting disks 9 is provided in front of and behind each seedling feeding device H, and a pair of seedling planting disks 9 and 9 are arranged in the left-right direction. Therefore, the discs 9 and 9 can be installed without being influenced by the spacing between the seedling pots D arranged in the seedling tray A in the tray guide 4 or the size of the entire seedling tray, Even if they are provided side by side, the space between the planting strips can be made relatively narrow.

  In addition, when the seedling feeding timing (the timing at which the disc grabs the seedling) is changed in each of the pair of seedling planting discs 9 and 9 arranged at the front and rear, the planting timing also changes.

  Furthermore, as shown in FIG. 1 and FIG. 2, two pairs of seedling planting disks 9 corresponding to the front seedling feeder H are arranged in parallel, and those corresponding to the rear seedling feeder H are arranged in parallel. The two pairs of seedling planting disks 9 and 9 on the front side and the pair of seedling planting disks 9 and 9 on the rear side are configured to be able to slide independently.

In addition, since the slide phases of the horizontal slide mechanisms of the front and rear tray guides 4 are opposite to each other, the left and right balance of the machine body can be maintained.
In addition, a ground ring / cover soil ring 43 is arranged on both sides of each seedling planting disk 9, and the seedling planting disk 9 covers soil around the seedling planted in the cocoon C.

  Engine power is input to the center shaft 9c of the seedling planting disk 9 through a power transmission mechanism in a planting transmission case (not shown) arranged in front of the machine body. Further, the center shaft 9c of the seedling planting disk 9 is configured such that the inclination angle of the center shaft 9c can be changed by an adjusting operation tool (not shown) or the like by a joint portion 47 supported by the support frame 45. The support frame 45 is provided inside the planting transmission case.

As shown in FIG. 6 (b), the holding range of the seedling E by the rubber portions 9b, 9b can be changed according to the inclination angle of the central axis 9c of the pair of seedling planting disks 9, 9.
Note that the delivery of the seedling E from the tray guide 4 to the pair of seedling planting disks 9 and 9 is performed by the pair of seedling planting disks 9 and 9 holding and transporting the leaves of the seedling E. At this time, the rubber portions 9b, 9b of the pair of seedling planting disks 9, 9 to which the seedling E is delivered from the tray guide 4 hold the delivered seedling E while maintaining contact with each other. The holding position of the seedling E between the pair of seedling planting discs 9 and 9 can be appropriately adjusted in accordance with the position where the pair of seedling planting discs 9 and 9 rotates to plant the seedling E sandwiched in the field. When planting the seedling E sandwiched between the pair of seedling planting discs 9 and 9 in the field, the pair of seedling planting discs 9 and 9 can perform an operation of separating the seedling E in a timely manner.

  The timing of holding and releasing the seedling E by the pair of seedling planting discs 9 and 9 can be adjusted by changing the inclination angle of the seedling planting disc 9 with an adjusting operation tool or the like, and the interval between the pair of seedling planting discs 9 and 9. Change and adjust.

  Further, since the seedlings in the seedling tray A are directly held by the pair of seedling planting discs 9 and 9 and planted as they are, the gripping position of the seedling E by the pair of seedling planting discs 9 and 9 becomes constant, so The planting depth of the seedling E is stabilized.

The seedling planting disk 9 of the present embodiment has a simple configuration in which the seedling extraction device and the seedling planting device of a conventional seedling transplanting machine are integrated, so that seedling transplanting is advantageous in terms of its assembly, maintenance, manufacturing cost, etc. A machine is obtained.
In addition, when the seedling planting disc 9 grips the seedling E transferred from the tray guide 4, a member (not shown) that pushes the seedling E from the tray guide 4 to the seedling planting disc 9 while gripping the seedling E in the seedling pot D is placed on the tray. It can be provided inside the guide 4. Thereby, taking out of the seedling from the seedling tray A can be promoted, and the accuracy of taking out the seedling is improved.

  Further, at the position X where the seedling planting disk 9 receives the seedling E from the tray guide 4, the rotation directions of the seedling planting disk 9 and the tray guide 4 are opposite to each other. Therefore, the seedling E can be smoothly taken out from the tray guide 4 to the seedling planting disk 9.

  FIG. 7 is a left side view of a seedling planting device portion of a riding type seedling planting machine according to another embodiment of the present invention, and FIG. 8 is a plan view thereof. The seedling planting apparatus shown in FIGS. 7 and 8 has the seedling planting disks 9 described in FIGS. 2 to 6 arranged in parallel. Unlike the examples shown in FIGS. All are facing the same direction.

  Although a detailed configuration for driving the seedling planting disk 9 will not be described, it is not driven from the engine, but from the ground PTO drive shaft 7 that is driven by rotation transmission from the ground (for example, from a rotatable grounding wheel) by running the aircraft. Driven by the power of The drive shaft of the seedling planting disk 9 is actuated through sprockets 51 and 52 and a chain 53 housed in the transmission case 50 supported by the mounting frame 31 shown in FIG.

  When the tractor PTO (work machine) is driven, the PTO must be turned off before the PTO is lifted. Therefore, if the PTO driving force remains at “ON”, the seedlings are fed in an empty manner. However, according to the above configuration, the power from the PTO drive shaft 7 is generated when the link mechanism R including the lift link 2 for the work machine lifts the work machine (the seedling feeding device H in this embodiment) by the lift cylinder 18. Since the power transmission for operating the machine is reliably turned off, it is safe.

  In addition, since the operator's chair is provided above the seedling planting disk 9, the operator can work while sitting on the chair 40 except for the seedling replenishment operation.

FIG. 9 is a left side view of a walking seedling planting machine that performs seedling planting work while supplying seedlings using a seedling tray A (FIG. 3) of a walking seedling planting machine according to another embodiment of the present invention. . The seedling transplanting machine 9 shown in FIGS. 2 to 6 is arranged in parallel on the seedling transplanting machine in FIG.
In the seedling transplanting machine of FIG. 9, a seedling feeding device H having a tray guide 4 on which a seedling tray can be placed is arranged on the upper front side of the handle frame 8 in the form of a hand tractor. An auxiliary seedling placing table 10 on which a seedling tray is placed is disposed in front of the seedling transplanting machine. The delivery port 4 b is provided with a guide body 44 that supports and guides the delivery of the empty tray B, and the tip of the guide body 44 is used as a seedling replenishment marker 5. The seedling mount 6 is also arranged in the seedling feeding device H.

  Further, the lift cylinder 18 detects the height of the kite C by the ground sensor 41 at the bottom of the vehicle body 11 and switches the control valve of the hydraulic circuit of the lift cylinder 18 to change the vehicle height according to the kite height. The height and the seedling planting depth by the seedling planting disk 9 are maintained and controlled to be constant.

  9, the vehicle body 11 of the hand tractor has an engine 12 mounted at the front, a handle frame 8 at the rear, and a steering handle 13 at the rear end. On both the left and right sides, a drive wheel 15 that can be vertically swung by a wheel case 14 to adjust the vehicle height, and a front auxiliary wheel 16 are arranged. The power of the engine 12 is transmitted to the driving wheel 15 via a traveling mission in the traveling mission case 19 and a chain in the wheel case 14, and the driving wheel 15 is driven. The front end of the wheel case 14 is rotatable up and down around the axle housing 17 and can be moved up and down by expansion and contraction of a lift cylinder 18 and a rolling cylinder (not shown) by hydraulic pressure to change the vehicle height. The lift cylinder 18 switches the control valve of the hydraulic circuit of the lift cylinder 18 to change the vehicle height according to the height of the cylinder by detecting the height of the cylinder C by a grounding sensor (not shown) at the bottom of the vehicle body 11. However, the vehicle height and the seedling planting depth by the seedling planting disk 9 are maintained and controlled to be constant.

  Further, the auxiliary wheel 16 can also be moved up and down in synchronization with the drive wheel 15 to change the vehicle height in a parallel state. An arm 20 integrated with the wheel case 14 that rotates around the axle housing 17 is linked to and linked with the lift cylinder 18 by a link rod 21. The link 22 interlocking with the wheel case 14 interlocks with a front wheel arm 23 that supports the auxiliary wheel 16 so as to be rotatable up and down.

  When the drive wheel 15 moves downward relative to the vehicle body 11 due to the extension of the lift cylinder 18, the front auxiliary wheel 16 also moves downward by the same amount. Conversely, when the drive wheel 15 is raised, the auxiliary wheel 16 is also moved up by the same amount, and the vehicle height is changed by raising and lowering the vehicle body 11 in a parallel state. For this reason, the seedling planting posture by the seedling planting disk 9 is also maintained constant. In addition, the seedling feeding device H is supplied with the seedlings in the seedling tray being grown, and the seedlings are supplied from the tray guide 4 to the seedling planting disk 9. Is a configuration in which seedlings are planted in the cocoon C.

  The drive power of the drive shaft 37 of the seedling feeding device H is transmitted to the engine power via the traveling mission in the mission case 19 and the seedling planting disk 9 in the planting transmission case 39. Further, an inter-strain adjustment mechanism (not shown) is provided inside the traveling mission, an inter-strain adjustment mechanism K1 is provided between the traveling mission and the seedling planting disk 9, and between the seedling planting disk 9 and the seedling feeding device H An adjustment mechanism K2 is provided. Therefore, adjustment between strains can be performed over three stages.

  Moreover, it is good also as a structure which provided the strain | stump | stock adjustment mechanism K2 only between the seedling planting disc 9 and the seedling feeding device H. In this case, the planting interval of the seedlings on the cocoon C can be easily changed simply by adjusting the timing of feeding the seedlings from the seedling feeding device H to the seedling planting disk 9 with the inter-strain adjustment mechanism K2.

  This configuration is highly reliable because there is no need to print the phase timing adjustment between the seedling planting body and the seedling supply chain, unlike a seedling transplanter that drops seedlings from the seedling supply chain to a beak-shaped seedling planting body. A seedling transplanter can be provided.

FIG. 10 is a left side view of a walking seedling planting machine that performs seedling planting work while supplying seedlings using a seedling tray A (FIG. 3) of a walking type seedling planting machine according to another embodiment of the present invention. The same members as those described in FIG. 9 are denoted by the same reference numerals, and the description thereof is omitted.
The feature of this configuration is that the seedling feeding device H is driven by direct power transmission from the traveling mission via the power shaft 42. In this case, the seedling planting disk 9 receives power transmission from a ground PTO shaft (PTO shaft that rotates when grounded) (not shown). In addition, you may provide the special earthing | grounding ring coaxially and integrally rotated with the seedling planting disk 9. FIG.

  Further, when the drive shaft 37 provided in the seedling feeder H is connected to the power input shaft 49 provided on the seedling planting disk 9, the field condition is soft or muddy, or the field scene is uneven. For example, the seedling planting disk 9 is configured to receive power transmission from the seedling feeding device H without receiving power transmission from the ground PTO shaft (not shown). If the configuration for receiving power directly through the drive clutch is switched by turning on and off the drive clutch, seedlings can be planted using the seedling planting disk 9 in a wide range of field conditions.

  INDUSTRIAL APPLICABILITY The present invention has a high possibility of being used as a farming machine for transplanting seedlings that frees workers from heavy labor.

It is a left view of the seedling planting apparatus part of the riding type seedling planting machine of one Example of this invention. It is a top view of the seedling planting apparatus part of the riding type seedling planting machine of FIG. It is a perspective view of the tray guide part of the seedling planting apparatus of the riding type seedling planting machine of FIG. It is a side view of the internal mechanism of the tray guide part of the seedling transplanter of FIG. It is a front view of the internal mechanism of the tray guide part of the seedling transplanter of FIG. They are a side view (Drawing 6 (a)) of a seedling transplanting disk of a seedling transplanting machine of Drawing 1, and an AA line sectional view (Drawing 6 (b)) of Drawing 6 (a). It is a left view of the seedling planting apparatus part of the riding type seedling planting machine of the other embodiment of this invention of FIG. It is a top view of the seedling planting apparatus part of the riding type seedling planting machine of FIG. It is a side view of the walking type seedling planting machine of the riding type seedling planting machine of the other embodiment of the present invention of FIG. It is a side view of the walking type seedling planting machine of the riding type seedling planting machine of the other embodiment of the present invention of FIG.

Explanation of symbols

2 PTO lift link 3 Frame 4 Tray guide 4a Supply port 4b Delivery port 5 Seedling replenishment marker 6 Seedling stage 7 PTO drive shaft 8 Handle frame 9 Seedling disc 9a Disk 9b Rubber part 9c Center shaft 10 Auxiliary seedling stage 11 Car body 12 Engine 13 Steering handle 14 Wheel case 15 Drive wheel 16 Auxiliary wheel 17 Axle housing 18 Lift cylinder 19 Traveling mission case 20 Arm 21 Link rod 22 Link 23 Front wheel arm 24 Guide plate 25 Guide side plate 26 Feed chain 27 Lug 28 Lateral sprocket shaft 29 Feed guide 30 Guide body 31 Mounting frame 32 Guide rail 33 Guide 34 Lead cam 35 Link mechanism 36 Crank arm 37 Drive shaft 38 Drive arm 39 Planting transmission case 40 Chair 41 Ground sensor 42 Power shaft Ft 43 ground ring and earthen ring 44 guide body 45 support frame 47 joint portion 49 power input shaft 50 transmission case 51, 52 sprocket 53 chain 55 lift cylinder A seedling tray B empty tray C 畝 D breeding pot E seedling H seedling feeding device K1 , K2 Inter-strain regulatory mechanism N Seedling planting device

Claims (1)

A tray guide (4) for transferring the seedling tray (A) supplied from the upper seedling tray supply port (4a) to the lower side;
A pair of seedling planting discs (9, 9) for holding the seedling (E) of the seedling tray (A) sandwiched and taken out at the lower part of the tray guide (4) and then receiving the seedling (E) rotated on the field Provided,
A seedling transplanting machine characterized in that an uneven portion is provided on the outer peripheral edge of the seedling transplanting disk (9, 9).

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