JPH04187014A - Seeding receiver-closing device in seedling-delivering section of transplanter - Google Patents

Abstract

PURPOSE:To prepare the subject device preventing the lag of a seedling-feeding timing by disposing a closing means in a link mechanism for vertically moving a transplanting cylinder, the closing, means being used for changing from the opening posture of a seedling-receiver to a seedling-holding posture in a process for lifting the transplanting cylinder. CONSTITUTION:A closing means 45 is disposed in a link mechanism 31 for vertically moving a transplanting cylinder 32. When a seedling receiver 39 receiving a seedling A is opened to deliver the seedling into the transplanting cylinder 32 and subsequently the transplanting cylinder 32 is lifted with the link mechanism 31, the closing means 45 is operated to press the seedling receiver 39, and the opening posture of the seeding receiver is changed into the closing posture thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a seedling receiver closing device in a seedling transfer section of a transplanter.

(Prior art) In a transplanter for field use for transplanting potted seedlings of vegetables, etc.
When transferring seedlings to a transplant tube that can be moved up and down, an operator transfers the seedlings on a seedling table to the transplant tube.

(Problems to be Solved by the Invention) In the above-mentioned conventional technology, since the delivery is performed manually, if the timing of the delivery is delayed, a so-called stock shortage occurs.

In addition, the seedling mounting table is in the form of a so-called turntable, and the seedling feeding mechanism using the turntable is intermittently rotated to feed the seedlings one by one.
If the seedlings are delivered to the transplant tube one by one, or the turntable is replaced with one seedling at the delivery end of the transverse conveyor.
If the transfer tube is delivered one by one, the movement timing of the turntable and transverse conveyor and the transfer tube are likely to be misaligned, and if this occurs, many plants will be missing.

Therefore, a seedling transfer section is provided between the seedling supply mechanism and the transplant tube to temporarily hold the seedlings that have fallen from the supply mechanism, and when the position of the holding device is changed between the holding position and the open position. If the closing timing of the receiver is off, supplying seedlings becomes substantially difficult.

In view of the above-mentioned actual situation, the present invention provides a seedling receiving mechanism, whether a transverse conveyor or a turntable, when the seedling receiving device is provided to temporarily hold the seedlings and then released to transfer the seedlings. The purpose is to automatically close a seedling receiver in a posture in relation to the movement of a transplant tube.

(Means for Solving the Problems) The present invention provides a traveling machine body 4 with a transplant tube 32 movable up and down via a link mechanism 31, a supply mechanism 10 for supplying seedlings A to the transplant tube 32, and In order to achieve the above-mentioned purpose, the following technical measures are taken in a transplanter equipped with a seedling transfer section 37 that temporarily holds the angle of view supplied falling from the supply mechanism 10 and transfers it to the transplant tube 32. There is.

That is, the present invention provides the above +'+'i delivery:, +'r
[i 37,'ko::L, Posture of holding seedling A and seedling A
The transplanting tube '32 is provided with a seedling receiver 39 that can freely change its position between two receiving trowels 1 and an open position, and a closing means 4 that changes the seedling receiver 39 in the open position to a seedling holding position in the process of raising the transplanting tube 32.
5 in the link mechanism 31.

(Function) The seedling receiver 39 holding the seedling A is released and the transplant tube 3
2, the link mechanism 33 transfers the transplant tube 32
When the seedling receiving device 39 enters the rising process, the closing means 45 operates to press the seedling receiver 39 in the open position to the closed position.

(Example) Hereinafter, a practical example of the present invention will be described in detail based on the first page. In Figs. 6 and 7 showing the entire structure of the transplanter, ■ is a field sample, which is covered with mulch film 2. The transplant machine 3 is designed to run after checking this Ul.

The transplanting machine 3 is a traveling type, and is equipped with a seedling box guide means 5, an i'I'1iii arrow means 6, a seedling pushing means 7, and a lateral feeding means 8 on the rear side of the traveling body 4, and these are used for supplying seedlings. Mechanism 1
0, and a planting means 9 and the like are provided at the sending end of the lateral feeding means 8. The fuselage 4 has a front wheel 11 on one side of the front end and rear wheels 11A on both sides of the rear end, and runs by driving the rear wheels 118 by the power of an engine 12 mounted in the center. A handle 13 is provided at the center of the rear end of the body 4.

The seedling box guide means 5 is for guiding the seedling box 14 from above to below, and as shown in FIGS. 8 to 10,
A guide plate 15 curved in an arc shape and this guide plate 15
The guide side plates 16 each have an inverted cross section and are fixed to the left and right sides of the guide plate 16, and the guide pieces 17 are arcuate and fixed to the inside of each guide side plate 16.

The seedling box 14 is made of thin plastic, and as shown in FIG. 8, has a large number of pot sections 18 in the vertical and horizontal directions, and feed holes 19 are formed at both left and right ends at the same pitch as the pot sections 18 in the vertical direction. . Each feed hole 19 is provided so as to coincide with the center of the bond portion 18, and an extrusion hole 20 is formed at the bottom of each pound portion 18. The seedling box 14 has both left and right edges formed by the holding portion 16a of the guide side plate 16 and the guide piece F. The M-box is loaded into the guide means 5 so that the M-boxes can fit inside the box, and the boxes are guided along the guide plate 15 so that the bottom surface of the box 18 slides on the guide plate 15.

The seedling box feeding means 6 has a feeding pawl that engages with the feeding hole 19, and is used to intermittently feed the seedling box 14 loaded in the seedling box guiding means 5 one pinch at a time from above to below. be.

The seedling pushing means 7 is for simultaneously pushing out the seedlings A in a horizontal row in the seedling box 14 onto the horizontal feeding means 8. The seedling box feeding means 6 and the seedling pushing means 7 are connected to the seedling box guiding means 5.
Inside the curved part, a seedling pushing means 7 is arranged in the center, and seedling box feeding means 6 are arranged on both left and right sides thereof.

The seedling extrusion means 7, as shown in FIG. 9 and FIG. 1O,
Corresponding to each pot section 18 in a horizontal row of the seedling box 14, the same number of push rods 20 as the number of pot sections (seven in the embodiment) arranged in a horizontal row are provided, and each of the push rods 20 is inserted into the push frame 21 in a forward direction. It is installed so that it protrudes from the

The extrusion frame 21 is supported and guided by a pair of left and right guide rods 23 fixed to the support plate 22 so as to be slidable back and forth. These are connected to each other via a drive mechanism. An opening 23' is formed in the guide plate 15 in correspondence with each push-out rod 20, and the push-out rod 2 is formed in this opening 23°.
0 moves forward and backward to push out the angle of view to the traversing means 8.

Note that after the feeding operation of the seedling box feeding means 6 is completed, the seedling pushing out means 7
The phase relationship is such that an extrusion action occurs.

The horizontal feeding means 8 receives the seedlings A pushed out from the pot portions 18 in a horizontal row of the seedling box 14 by each pushing rod 20 of the seedling pushing means 7, and intermittently supplies the seedlings A to the planting means 9 one by one. It is something. As shown in FIG. 8, this cross-feeding means 8 consists of a chain 26 wound between a pair of left and right sprockets 24 and 25, an oval guide plate 27 disposed near the rear of the chain 26, and a The seedling receiver 29 is pivotally supported on the bracket 28 by pins 30 at equal intervals and is slidably guided by the outer periphery of the oblong guide plate 27. In the oval indoor board 27, the seedling holder 29 is tilted around the bin 30, and the M
A notch 27a is formed so as to fall into the means 9 for planting A.

The planting means 9 is located at the sending end of the lateral feeding means 8, and the first
As shown in the figure, a transplant tube 32 is supported by a link mechanism 31 so as to be movable up and down.

In FIG. 1, the link mechanism 31 includes a first parallel link 33 that is supported by the traveling body 4 and swings in the front-back direction, and a second parallel link 33 that is supported by the first parallel link 33 and swings in the vertical direction. parallel links 34, both parallel links 33
．． 34 is moved by the rotation of the drive arm 35, the lower end of the transplant tube 32 moves as indicated by reference numeral B in FIG.

Therefore, the transplant tube 32 is pivotally connected to the second parallel link 34 in a vertical posture, and sticks into the soil at the bottom dead center C during its vertical movement, and the field angle accommodated therein is transplanted into the ridge 1. At the same time, it accepts the angle of view at top dead center.

The transplant tube 32 is composed of a half tube 32A having a U-shape in plan view, and a shaft plate 32B rotatably supported by a bottle 32C on the open side of the half tube 32A, and a shank plate 32R.
32 protrudes downward from the front edge of the lower end of the half-cylindrical body 32^ when closed.
0, which prevents soil from entering the semi-cylindrical body 32A when it is stuck into the soil, and on the other hand, after it is stuck into the soil, it is released by pressing the soil against it, and the seedlings inside it are released. It is ready to be planted.

For this reason, the shank plate 32B is pivoted 36A to the second parallel link 34 in the middle, and connected to the opening/closing link 36 pivoted 36B to the traveling body 4 at the other end by a pivot pin 360. It opens at C, gradually closes during the rising process, and becomes completely closed at top dead center, making it possible to receive seedlings.

Between the sending end of the transverse feeding means 8, which is the seedling supply mechanism 10 described above, and the top dead center of the transplant tube 32, the seedlings B that have fallen from the transverse feeding means 8 are temporarily held and delivered to the transplant tube 32. Seedling delivery means 37 is provided.

The seedling transfer means 37 includes a transfer tube 38 supported in a vertical position, and a bottom plate that can be opened and closed at the bottom of the tube 38, that is, a seedling receiver 39.
is provided in the cylinder 38 so as to be rotatable about a fulcrum shaft 39B.

As shown in FIGS. 3 to 5, the seedling receiver 39 is attached to the delivery tube 38 at the negative end and bent when the other end is engaged with the seedling receiver 39 and closes the receiver 39. a rod-shaped spring 40 for opening the receiver and imparting elastic storage force;
One end is pivoted to the cylinder 38 with a pin 41, and the coil part 4 is in the middle.
2A and has a hook-shaped portion 42B at the tip, and the receiver 39
A rod-shaped spring 42 for maintaining the closed position of the receiver, which can be freely engaged and detached from the notch 39A, is provided on both left and right sides, and the fulcrum shaft 3
9B is provided with a crank-shaped arm 43 whose tip 43A is engaged with the rod-shaped spring 42, and this arm 43 is provided with a pin 43B that projects laterally.

On the other hand, the pin 43B of the arm 43 is rotated in the direction of the arrow F by kicking the pin 43B of the arm 43 as shown in the arrow E, and the hook-shaped portion 42B is elastically deformed in the direction of the arrow G. The opening tool 44 is provided with an opening tool 44 for detaching from the seedling delivery section 39A, and this opening tool 44 opens the bottle as described above when the transplanting barrel 32 vertically faces the seedling transfer section in the vicinity of the top dead center in the movement trajectory B of the transplanting barrel 32. 43B, and as a result, when the plunger 11 ring 42 separates from the receiver 39, the receiver 39 is opened by the action of the mis-spring 400, and the seedling A held there falls and is delivered to the transplant tube 32. It is like that.

Since the opening tool 44 takes a swing locus up and down and back and forth, it is formed of a rod-shaped body, and by providing a coil spring 44A in the middle of the rod-shaped body, the spring 44A is deflected after engaging with the bottle 43B. This kicks the arm 43, and the spring 44A cushions the impact while ensuring the placement.

Further, as shown in FIGS. 1 and 2, a closing means 45 is provided in conjunction with the link mechanism 31 for forcibly closing the receiving member 39 when it is opened.

The closing means 45 includes an arm 46 protruding from the second parallel link 34, and a rod 47 in which an upper end pin 46A of the arm 46 is engaged with a play 47A shown by an elongated hole.
An arm 49 is connected to the end of the rod 47 via a ball joint 48, and this arm 49 is rotatable on a horizontal plane via a fulcrum 50A to a stay 50 provided on the fixed side. The previous location is Zuinikooshitei Hanshihe.

Further, the push plate 4 of the arm 49 and the receiver 8
The fixed side between the L tool 39 supports a relay push port, and a push rod 53 which is biased in the return direction (pull direction) by a do 51 and a coil spring 52, and slides in the rod longitudinal direction. It has a U-shaped guide support fitting 54, so that when the rod 47 is interlocked in the direction of the arrow G in FIG. 2 by the action of the parallel link 34, the arm 49 swings in the direction of the arrow H. The push rod 53 is pressed against the spring 52 via the relay rod 51 by the push plate 49A, and the opened receiver 39 is closed against the spring 40, and the closed position is again held by the spring 42, Arm 4
Hold it as 3rd prize.

Since the transplant tube 32 moves along the trajectory B, the closing of the receiver 39 is interlocked with the play 47A when the transplant tube 32 moves from the top dead center to the bottom dead center C or until the middle of this transition. The relationship is stopped, and after that, the receiver 3 is moved from the bottom dead center C to the top dead center DQ by interlocking as described above.
9 is closed, and the angle of view from the seedling feeding means 8 is temporarily reserved within the delivery cylinder.

In addition, in the embodiment described above, the seedling feeding mechanism can also be in the form of a turntable.

(Effects of the Invention) The present invention is as described above, and the seedling delivery section 37Q is
A seedling receiver 39 is provided that can change its position between a posture for holding the seedling A and an open posture for transferring the seedling A to the transplant tube 32, and the seedling receiver 39 in the open position is changed to the seedling holding posture in the process of raising the transplant tube 32. Since the link mechanism 31 is equipped with a closing means 45 for closing the seedlings A from the supply mechanism 10, once the seedlings A from the supply mechanism 10 are held in the seedling receiver 39 and supplied to the transplant tube 32, when the transplant tube 32 is raised, the link mechanism It can be closed again by the closing means 45 accompanying 31, so there is no lag in supply timing, delivery is reliable, and no stock shortage occurs.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view showing the operation, FIG. 2 is a perspective view, FIG. 3 is an enlarged side view, FIG. 4 is a side view of the other side, and FIG. The figure is a partial plan view, Figure 6 is an overall top view of the transplanter, Figure 7 is a side view, Figure 8 is a front view of the feeding mechanism, Figure 9 is an enlarged side sectional view of the same, and Figure 9 is an enlarged side sectional view of the same. Figure 10 is a sectional view of the same plane. 4... Traveling machine body, 10... Supply mechanism, 32... Transplant tube, 3I... Link mechanism, 37... Seedling delivery section, 3... ... Seedling receiver, 45... Closing means.

Claims (1)

[Claims] (1) A transplant tube (32) is provided on the traveling body (4) via a link mechanism (31) so as to be movable up and down, and a supply mechanism (10) is provided for supplying seedlings (A) to the transplant tube (32). , a transplanter equipped with a seedling transfer section (37) that temporarily holds the seedlings (A) supplied falling from the supply mechanism (10) and transfers them to the transplant tube (32), the seedling transfer section (37) is equipped with a seedling receiver (39) whose position can be freely changed between a position for holding the seedling (A) and an open position for transferring the seedling (A) to the transplanting cylinder (32),
32), the link mechanism (31) moves the closing means (45) to bring the seedling receiver (39) in the open position into the seedling holding position.
) A seedling receiver closing device in a seedling transfer section of a transplanter.