JPH0678612A - Apparatus for supplying seedling to transplanter - Google Patents

Abstract

PURPOSE:To enable easy assembling of a driving part constituting the main part of a longitudinal transfer mechanism on a seedling table frame, improve the assembling workability and the assembling accuracy of the driving part, prevent the intrusion of dust into the driving part and facilitate the maintenance of the apparatus. CONSTITUTION:This apparatus is provided with a longitudinal transfer driving case 55 having a part 55a for attaching to a seedling table frame 14. The driving case 55 contains a driving part 56 having a follower cam 69 interlocked with a longitudinal transfer operation member 54. The longitudinal transfer driving unit 48 having this structure is attached to the seedling table frame 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lateral feed mechanism for reciprocating a seedling frame of a seedling placing table on which a seedling tray is placed.
The present invention relates to a seedling supply device for a transplanter, which is provided with a vertical feed mechanism that vertically feeds the seedling tray at the left and right reciprocating end positions of the seedling stand frame.

[0002]

2. Description of the Related Art Conventionally, in a transplanter in which pot seedlings are taken out one by one from a seedling tray having a plurality of pot seedling accommodating portions and planted in a field, seedlings on a seedling tray on which the seedling tray is placed are placed. The platform frame is provided with a lateral feed mechanism that reciprocates left and right, and a vertical feed mechanism that vertically feeds the seedling tray at the left and right reciprocating end positions thereof. A vertical feed drive shaft that is constantly driven in an interlocking manner, a drive unit that has a follower cam that operates in conjunction with the vertical feed operation member of this drive shaft, and a vertical feed drive body that rotates in conjunction with this drive unit. The drive unit is attached to one side in the left-right direction of the seedling stand frame, and the vertical feed drive unit is attached to the output shaft of the drive unit. The drive unit drives the seedling tray at predetermined pitches. It can be fed vertically.

[0003]

However, in the conventional vertical feed mechanism constructed as described above, all of its components are mounted on the seedling frame, respectively, so that they can be assembled. When the number of interlocking parts is increased between the input side and the output shaft side, which are operated by the operation of the vertical feed operation member, and the assembling accuracy is difficult to obtain, and the assembling work becomes complicated, When this interlocking part uses a gear, if the assembling accuracy is poor, the vertical feed timing with respect to the seedling tray may be misaligned or the vertical feed amount may be misaligned. However, there is also a problem that it is difficult to perform maintenance because it needs to be carried out in a state of being attached to the seedling stand frame.

An object of the present invention is to provide a seed stand frame of a vertical feed mechanism.
It is possible to improve the assembly accuracy of the drive part while making it easy to assemble it to the frame, to make it possible to properly adjust the vertical feed timing and the vertical feed amount, and to prevent troubles due to dust entering the drive part. There is a point to do.

[0005]

In order to achieve the above object, the present invention provides a transverse feed mechanism X for moving the seedling stand frame 14 of the seedling placing table 14a on which the seedling tray 15 is placed, to the left and right.
A vertical feeding mechanism Y for vertically feeding the seedling tray 15 placed on the seedling placing table 14a at the left and right reciprocating end positions of the seedling table frame 14, wherein The mechanism Y includes a vertical feed drive shaft 37 having a vertical feed operation member 54, a drive unit 56 having a follower cam 69 that operates in conjunction with the vertical feed operation member 54, and the drive unit 5
6 is provided with a vertical feed drive body 79 that rotates in conjunction with 6, and a vertical feed drive case 55 having an attachment portion 55a to the seedling stand frame 14 is provided, and the drive portion 56 is provided with the drive portion 56. A longitudinal feed drive unit 48 is formed internally and this drive unit 48 is attached to the seedling stand frame 14.

[0006]

Operation: The vertical feed drive unit 4 is equipped with the drive unit 56, which constitutes the main part of the vertical feed mechanism Y, inside the vertical feed drive case 55.
8 is formed and is attached to the unit 48 and the seedling stand frame 14, the drive unit 56 can be attached to the seedling stand frame 14 and the assembling property thereof can be improved.
Moreover, since the drive unit 56 can be assembled to the drive case 55 before being mounted on the seedling frame 14, the assembly error of the drive unit 56 can be reduced and the assembly accuracy can be improved. The vertical feeding timing and the vertical feeding amount of the seedling tray can be properly adjusted.
It is possible to prevent the intrusion of dust and the like into the seedling frame 14 for maintenance.
Since it can be removed from the unit, maintenance can be performed easily.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 9 to 11, the basic construction of the transplanter of the present invention is such that a mission case 3 is provided at the rear of a front frame 1 having an engine 2 mounted at the front thereof. The left and right drive wheels 4 are supported on the space 3 via the left and right transmission case 5 so as to be vertically movable, and the front wheel 6 is supported on the front end side of the front frame 1 via an axle frame 7 so as to be vertically movable. A chassis frame 9 is provided at the rear of the mission case 3 and is connected to the front frame 1, and the chassis frame 9 is provided with a seedling feeding device 8 described below. A seedling planting device 10 is provided at the rear of the mission case 3 via a planting transmission case 11.

The seedling planting device 10 takes out a seedling picking nail 16 for picking up one pot of seedlings from a seedling tray 15 placed on a seedling placing table of a seedling feeding device 8 described later, and a picking nail 16 The potted seedlings 16 are received and configured by a hopper-shaped planting claw 18 that moves up and down in conjunction with the multi-cutter 17, and the potting plants 18 plant the pot seedlings on the ridge surface A at regular intervals. I am trying.

In FIGS. 9 to 11, reference numeral 12 is a pressure suppressing roller for suppressing the ridge surface A, and 13 is the seedling planting device 10.
, 19 is a steering wheel, 21 is a planted clutch lever, 22 is a main shift lever,
23 is a stock shift lever, 24 is a planting depth adjustment lever, 2
Reference numeral 5 is a left and right side clutch lever.

The chassis frame 9 is formed of a round pipe, has a recess 9a which bulges downward in the middle portion thereof, and a front end portion of which is above the mission case 3 and which supports a lifting cylinder 26. It is fixed via a frame 27, and the steering handle 19 is connected to the rear end portion. That is, the reinforcing plate 2 is provided above and below the cylinder frame 27.
8 and 29 are provided, the front end portion of the chassis frame 9 is fixed to the cylinder frame 27 via the horizontal frame 30 and the left and right connecting plates 31, and the front portion is connected via the cylinder frame 27. It is connected to the frame 1.

The intermediate portion of the chassis frame 9 corresponding to the recess 9a is shown in plan view in FIG.
Like a gate, and L as shown in FIGS.
-Shaped left and right side frames 32a, 32b are fixed,
The seedling feeding device 8 is provided at a portion surrounded by the recess 9a of the chassis frame 9 and the side frames 32a, 32b.
Are installed.

Next, the seedling supply device 8 will be described.

The seedling feeding device 8 comprises a lateral feed mechanism X for moving the seedling stand frame 14 having a seedling stand 14a on which the seedling tray 15 is placed to reciprocate left and right, and the seedling stand frame 14.
And a vertical feed mechanism Y that vertically feeds the seedling tray 15 placed on the seedling placement table 14a at the end position of horizontal movement of 1 by one pitch. The horizontal feed mechanism X includes a planting clutch (not shown). It is linked to the counter shaft 112, which is linked to the output side of the embedded planted clutch case 10 via a transmission chain 111, via a transmission chain 33, and is driven by the transmission chain 33 as shown in FIG. A lateral feed drive case 35 having a lateral feed drive shaft 34 is provided, the drive case 35 is fixed to the right side frame 32b, and the lateral feed shaft 40 having a traverse groove 40a is provided in the drive case 35. A pair of lateral feed switching gears 46 and 47, which are provided on the pair of intermittent gears 41 and 42, the lateral feed stop cams 43 and 44, and the counter shaft 45, are supported by supporting one end side in the axial direction of the lateral feed shaft 40. And in conjunction with the horizontal feed drive shaft 34, the seedling stand frame via the horizontal feed shaft 40 - arm 14
Is reciprocated left and right.

Further, in the lateral feed drive case 35, as shown in FIG. 4, the reduction gear 3 is attached to the lateral feed drive shaft 34.
It supports one end side in the axial direction of the vertical feed drive shaft 37 that is interlocked and coupled via 8, 39. The other end of the vertical feed drive shaft 37 and the horizontal feed shaft 40 in the axial direction is connected to the left side frame.
It is supported by a bearing case 36 fixed to the frame 32a.

The seedling frame 14 is provided with a seedling placing table 14a at the upper end of the starting end, and left and right side plates 14b at the lower end of the seedling, and a seedling tray 15 after taking out the seedlings. A tray collecting guide 14c that guides upward is provided, and a vertical feed mechanism Y described later is provided outside the left side plate 14b.
While the vertical feed drive unit 48 is attached, a guide roller 49 is provided at the lower front portion of the seedling stand frame 14 as shown in FIG. 5, and a resin sliding body (not shown) is provided at the lower rear portion. A slide guide 50 is provided, and the guide roller 49 and the slide guide 50 are connected to the side frame.
Guide rails 51 and 52 that are horizontally mounted between the frames 32a and 32b
The whole of the seedling stand frame 14 is reciprocally moved right and left by driving the lateral feed shaft 40.

Next, the vertical feed mechanism Y will be described.

The vertical feed mechanism Y includes a vertical feed drive shaft 37 and a vertical feed drive unit 48 which are constantly driven during a planting operation.
And a vertical feed driven body 79 mainly composed of a sprocket, a vertical feed driven body 80 and a conveyor belt 81. The vertical feed drive shaft 37 has a bracket 53 fixed to the drive shaft 37 and an elongated hole 53a. And a pair of vertical feed operating members 54 mainly composed of rollers for adjusting the distance from the drive shaft 37 via the tightening port 53b. The drive unit 48 is constructed as follows. ing.

That is, the drive unit 48 is provided with a vertical feed drive case 55 having an attachment portion 55a to the seedling stand frame 14, and the drive case 55 is interlocked with the vertical feed operation member 54. The drive unit 56 having an operating follower cam 69 is internally configured, and the drive unit 48 is provided with the drive unit 48 via the mounting portion 55a.
4 is detachably attached.

More specifically, the drive case 55 is shown in FIG.
As shown in FIG. 2, it is composed of split cases 55b and 55c made of aluminum or an aluminum alloy that can be split in two, and is joined tightly by a plurality of fixing screws 60. The driven shaft 60 is provided on one side in the length direction. Is disposed, and one end side in the axial direction of the driven shaft 60 is projected from the drive case 55 to the outside,
The driven shaft 60 is rotatably supported by a bearing of a bearing plate 61 provided outside the split case 55c and a bearing of the split case 55b, and the protruding shaft portion of the driven shaft 60 is interlocked with the vertical feed operation member 54. Then, a vertical feed driven cam 62 that rotates the driven shaft 60 in a driven manner, and an unlocking driven cam 63 that has a cylindrical shaft 63a that is rotatably fitted onto the driven shaft 60 are provided.

The driven cams 62 and 63 are attached to the outside of the drive case 55. In the drive case 55, a drive unit 56 that operates in conjunction with the driven cams 62 and 63 is operated. The drive unit 56 is configured as follows.

That is, a vertical feed arm 64 having a roller 64a at its tip is coupled to the case inner shaft of the driven shaft 60, and the case inner shaft of the cylindrical shaft 63a is connected to the case inner shaft.
A lock arm 65 having a roller 65a at its tip is spline-coupled, and a follower cam shaft 66 is rotatably supported at an intermediate part of the drive case 55, and a one-way clutch 6 is provided at an intermediate part of the follower cam shaft 66.
The follower cam 69 having an engaging hole 69a with which the roller 64a provided in the vertical feed arm 64 engages is fixed to the cylinder shaft 68 by supporting the cylinder shaft 68 via the follower cam shaft. Transmission gears 70 and 71 having different numbers of teeth are fixedly mounted on both sides of the shaft 66 in the axial direction, that is, on the outsides of both sides of the cylinder shaft 68, and the boss portion 70a of one transmission gear 70 is locked with the transmission gears 70 and 71. The gear-shaped lock body 72 having a plurality of lock grooves 72a with which the roller 65a provided on the arm 65 is engaged is fixed.

On the other side in the length direction of the drive case 55, there are inner gears 73a and 74a, and the transmission gear 7
A cylindrical output shaft 75, which rotatably supports the speed increasing gears 73 and 74 which always mesh with 0 and 71, is rotatably supported via a bearing, and the cylindrical output shaft 75 is provided at the intermediate portion in the axial direction with the above-mentioned increasing gears. A switching gear 77 having outer gears 77a, 77b selectively meshed with the inner gears 73a, 74a of the high-speed gears 73, 74 by operating a shifter 76 is spline-fitted and supported slidably in the axial direction. To do.

Then, the drive unit 5 having the above-mentioned configuration
6, all of the driven cams 62 and 63 are housed in the drive case 55, and the vertical feed drive unit 4
8 is formed, and by mounting the drive case 55 on the seedling stand frame 14, the drive unit 5 is formed.
Therefore, the vertical feed mechanism Y can be easily assembled.

The seedling frame 1 of the drive case 55 is used.
4 is mounted on the mounting portion 55 as shown in FIGS.
a is attached to the mounting plate 14a and the left side plate 14b of the seedling stand frame 14 via mounting bolts 78.

On the other hand, as shown in FIG. 6, the output shaft 75 is connected to the vertical feed drive body 79, and the other end in the axial direction is supported by the seedling stand frame 14 and is a vertical feed shaft 82. One end side in the direction is loosely inserted and interlocked with the output shaft 75.

In the embodiment shown in the drawing, as shown in FIG. 1, one end side in the axial direction of the output shaft 75 is connected to the drive case 5.
5, the vertical feed shaft 82 also penetrates the output shaft 75 and projects outward from the drive case 55, and the interlocking pieces 83, 8 are respectively attached to these projecting shaft portions.
4 is provided, and the interlocking pieces 83 and 84 are connected by a fixing bolt 85 to interlock the output shaft 75 and the vertical feed shaft 82. 1 and 12, one of the interlocking pieces 83 and 84, and in the embodiment shown in the drawings, a pair of circles is attached to the interlocking piece 84 that is integrally connected to the protruding shaft portion of the output shaft 75 by a fixing bolt 86. The arcuate elongated hole 84a is provided, the other interlocking piece 83 is provided with a pair of mounting holes 83a and a nut 83b fixed to the back surface, and the relative position in the circumferential direction between the interlocking pieces 83, 84, in other words, the output shaft 75. Adjusting mechanism 87 for adjusting the relative position of the longitudinal feed driving body 79 in the circumferential direction with respect to
Are configured.

Further, in the above structure, the bearing plate 61 has a stopper 88 for restricting the swing of the vertical feed driven cam 62 via the arm 61a as shown in FIG.
3 is provided on the vertical feed driven cam 62.
As shown in FIG. 7, an arm 62a having a stopper rubber 89 that contacts the stopper 88 is attached, and the stopper rubber is provided between the arm 62a and a spring receiver (not shown) provided in the drive case 55. 89 as stopper 8
8 is provided with a return spring 90.

The cylindrical shaft 63a of the unlocking driven cam 63 is provided with a spring receiver 91 extending to the opposite side of the driven cam 63 as shown in FIGS. 2, 3 and 8.
The roller 65a of the lower arm 65 is provided between the spring receiver 91 and the spring receiver rod 92 provided on the drive case 55.
9 for urging the lock body 72 into the lock groove 72a of the lock body 72
3 is provided.

In the vertical feed mechanism Y constructed as described above, the seed stand frame 14 is reciprocated left and right by the lateral feed mechanism X, and is constantly driven when it reaches the left and right reciprocal movement end position. Vertical feed operation member 54 of the vertical feed drive shaft 37
The driven cams 62 and 63 swing in the counterclockwise direction in FIGS.
3a is driven and rotated, and the vertical feed arm 64 and the lock arm 65 swing counterclockwise in FIGS. 2 and 3 against the return spring 90 and the spring 93.

When the lock arm 65 swings,
The roller 65a is disengaged from the lock groove 72a, the lock of the follower cam shaft 66 is released, and the vertical feed arm 64 swings, so that the roller 64a is engaged with the engagement hole 69a of the follower cam 69. The follower cam 69 swings, the swing drives the cylinder shaft 68, drives the follower cam shaft 66 via the one-way clutch 67, and selects one of the shifters 76 to engage one reduction gear 73 or 74. The cylindrical output shaft 75 is rotated via the vertical feed shaft 82 connected to the output shaft 75 via the adjusting mechanism 87, and the vertical feed drive body 79 fixed to the vertical feed shaft 82 is driven. .

An idle shaft 95, which supports the vertical feed follower 80 mainly consisting of a sprocket via a bracket 94, is provided on the upper part of the seedling frame 14 as shown in FIGS. A drive pin 81a which is mainly composed of a chain between the driven body 80 and the vertical feed driving body 79, and which intervenes between the pots of the seedling tray 15 to forcibly drive the seedling tray 15 in the vertical feed direction. A conveyor belt 81 having a length is stretched, and the conveyor 81 is driven by the vertical feed drive member 79 to rotate so that the seedling pot 15 in the seedling tray 15 can be moved.
It is designed so that it can be fed vertically by every 1 pitch of a.

Further, after the vertical feed operation member 54 has rotated and passed the driven cams 62 and 63, the driven cams 62 and 63 return to their original positions by the action of the return spring 90 and the spring 93. When the vertical feed is completed, the next vertical feed is prepared.

The vertical feed amount is determined by the swing angle of the driven cam 62 by the vertical feed operating member 54, and the speed increasing gear 7 by the shifter 76 of the switching gear 77 is determined.
By selecting 3,74, the vertical feed amount according to these speed increasing ratios can be obtained.

That is, when the seedling pots in the seedling tray 15 have a plurality of sizes of, for example, 25 mm square and 30 mm square, one of the speed increasing gears 73, 74 is selected according to the size of the seedling pot 15a. By selecting, the vertical feed amount according to the size of these seedling pots 15a can be obtained.

Further, in the shifter 76, as shown in FIG. 3, a shift shaft 96 is provided in the drive case 55 in a penetrating manner through a bearing tube 97, and a bearing of a shaft portion inside the case of the shift shaft 96 is provided. And a switching lever 99 is attached to the shaft end portion of the outer shaft portion of the case of the shift shaft 96, and is moved in the axial direction of the tubular output shaft 75 by the operation of the lever 99. The drive case 55 is provided with a lever guide plate 100, and the guide groove 100 is provided on the lever guide plate 100.
By a, it can be held at the switching position for switching from neutral to low speed or high speed range.

As described above, the drive case 55 includes
A vertical feed drive unit 98 that incorporates the drive unit 56 described above.
And the drive unit 48 is connected to the seedling frame 1
4 is detachably mounted on the drive case 55 via the mounting portion 55a of the drive case 55, so that the drive portion 56 can be easily mounted on the seedling frame 14 and the assembling property can be improved. Moreover, the driven shaft 60 having the cylinder shaft 63a, the follower cam shaft 66, and the output shaft 75 are the seedling stand frame.
The shafts 60, 66, and 75 are mounted on the drive case 55 rather than individually mounted on the drive frame 55. In other words, the shafts 60, 66, 75 are mounted on the drive case 55 before being mounted on the seedling stand frame 14. The assembling error can be reduced, and even if the gear speed increasing mechanism including the transmission gears 70, 71 and the speed increasing gears 73, 74 is formed between the follower cam shaft 66 and the output shaft 75, the assembling accuracy is improved. Yes, the vertical feed timing and vertical feed amount of the seedling tray 15 can be properly adjusted, and the drive case 55 can be hermetically sealed.
It is also possible to prevent dust and the like from entering the drive unit 56, and even when maintenance is performed, the seedling stand frame can be removed.
Since it can be removed from the frame 14, it can be easily maintained.

In the transplanter described above, as shown in FIG. 6, the pushing cam 101 is provided at the center of the vertical feed drive shaft 37.
And the side frames 32a and 32b are fixed.
A fixed support plate 102 is provided in the center of the support shaft 102 via a fixed shaft 103, and an extrusion operation arm 105 is swingably supported on the support plate 102 via a support shaft 104. Roller 105 engaged with the pushing cam 101
a is provided so as to interlock with the vertical feed drive shaft 37 so as to swing the extrusion operation arm 105 intermittently, and the seedling extrusion pin 106 is interlocked with the oscillation of the operation arm 105.
Is pushed into the seedling pot bottom of the seedling tray 15 from which the seedlings are picked up by the seedling take-out nails 16 to extrude the seedlings.

[0038]

INDUSTRIAL APPLICABILITY As described above, the present invention provides the seedling frame 14
A vertical feed drive case 55 having a mounting portion 55a is attached to the drive case 55, and the drive unit 56 of the vertical feed mechanism Y is installed in the drive case 55 to form a vertical feed drive unit 48. Since it is attached to the stand frame 14, the drive shaft 56, which is the main part of the vertical feed mechanism Y, can be easily assembled to the seedling stand frame 14, and the assembling property can be improved. Since the assembling accuracy of the drive unit 56 can be improved and the vertical feed timing and the vertical feed amount can be made appropriate, in addition, troubles due to intrusion of dust and the like into the drive unit 56 can be prevented, and maintenance is easy. It can be done.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part of a vertical feed mechanism.

FIG. 2 is a side view of a vertical feed drive unit.

FIG. 3 is an explanatory view showing a drive unit with a drive case of the vertical feed drive unit omitted.

FIG. 4 is a side view of the seedling supply device.

FIG. 5 is a partially omitted plan view showing only a vertical feeding mechanism portion in the seedling feeding device.

FIG. 6 is a partial cross-sectional plan view of the seedling feeding device.

FIG. 7 is a front view of only a vertical feed driven cam of the vertical feed mechanism.

FIG. 8 is a front view of a lock release driven cam to which a lock arm of a vertical feed mechanism is attached.

FIG. 9 is a side view of a transplanter to which the seedling supply device of the present invention is applied.

FIG. 10 is a side view of the transplanter with the hood and cover removed from FIG. 9.

11 is a plan view of the transplanter shown in FIG.

FIG. 12 is a perspective view showing an interlocking portion between an output shaft having an adjusting mechanism and a vertical feed shaft.

[Explanation of symbols]

 14 seedling frame 14a seedling mounting table 15 seedling tray 37 vertical feed drive shaft 48 vertical feed drive unit 54 vertical feed operation member 55 vertical feed drive case 55a mounting portion 56 drive unit 69 follower cam 79 vertical feed drive body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yozo Ogaki 2-18-1 Inadera, Amagasaki City, Hyogo Prefecture Kanzaki High Class Machinery Works Co., Ltd.

Claims (1)

[Claims] 1. A lateral feed mechanism X for reciprocating a seedling stand frame 14 of a seedling placing table 14a on which a seedling tray 15 is placed.
And at the end position of the left and right reciprocating movement of the seedling frame 14,
In the seedling supply device of the transplanter, which comprises a vertical feed mechanism Y for vertically feeding the seedling tray 15 placed on the seedling placing table 14a,
The vertical feed mechanism Y has a vertical feed drive shaft 37 having a vertical feed operation member 54, a drive unit 56 having a follower cam 69 that operates in conjunction with the vertical feed operation member 54, and an interlock with the drive unit 56. And a vertical feed drive body 79 that rotates
A vertical feed drive case 55 having an attachment portion 55a to the seedling stand frame 14 is provided, and the drive portion 56 is incorporated in the drive case 55 to form a vertical feed drive unit 48,
This drive unit 48 is attached to the seedling stand frame 14, and a seedling supplying device for a transplanting machine.