JPS6361887B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transplanting device that pulls out seedlings grown in continuous paper cylinder pots in rows, separates them into individual pot seedlings, and plants them in the main field.

A continuous paper tube assembly pot body is made by connecting individual paper tubes to form a band shape, and folding the band shape into a meandering shape to form an aggregate pot body. The most typical example is a continuous paper tube collection pot in which the individual pots are connected in a beaded manner to a connecting part and has a separation guiding part with a cut in the connecting part, as shown in Japanese Patent Publication No. 55-30805. It is the body. This continuous paper cylinder assembly pot can be pulled out as a single row, so it can be peeled off in rows from the front row and pulled out, separated into individual pots and seedlings, and planted in the main field. . Transplanting machines suitable for this purpose include Special Publication No. 55-30805, Utility Model Publication No. 55-39700, and 55
-46126, 56-4250, etc. have been proposed by these inventors. These transplanters use a pair of rollers or belts to press and hold both sides of rows of bodies and pull them out in rows.
A pair of diagonal rollers with elastic bodies or conical rollers with a high circumferential speed located in the front separate the seedlings into individual pots based on the difference in circumferential speed, and after separation, they are dropped through a chute and grooves are opened in advance. It is planted by burying it in a trench.

The above transplanter is suitable for beet potted seedlings (usually diameter 1.9cm).
It shows extremely good transplanting results when used for seedlings in elongated pots such as those with a diameter of 10 to 13 cm (height: 10 to 13 cm); When used for transplanting potted seedlings that are small in height compared to their large size, the cut in the separation guiding section may not be sufficient, resulting in poor separation, or when separating the seedlings, the seedlings may be pinched from the sides with considerable force. Because it has to be
The rhizosphere soil inside the pot collapses. Furthermore, as a result of planting through a falling chute, the height of the potted seedling is low, causing it to fall over within the chute, making planting impossible.

In order to eliminate such drawbacks, the inventor first conducted forced planting instead of using the above-mentioned falling method,
From the time the potted seedlings are held in the planting holder until the completion of planting, the seedling rows are pulled out, stopped at a predetermined position, and the potted seedlings are separated, and the separated potted seedlings are transplanted. We have completed a transplanting machine that can reliably transplant even seedlings in continuous paper tube pots to planting positions at predetermined intervals using a planting holder. The rotational speed of the tip of the holder is very fast, and since it is an intermittent drawer, the pullout resistance due to contact with the guide section that guides the rows of potted seedlings increases, causing the pot connecting section to May cause amputation.

The present invention provides a transplanting device equipped with a device to prevent the above-mentioned drawbacks, and when pulling out seedlings in pots with meandering continuous paper cylinders in rows, the seedlings are guided by rotating rollers and the seedlings in rows are guided. The press plates on both sides are designed to release the pressure when the rows of seedlings advance, thereby preventing the rows of seedlings from being cut midway due to pull-out resistance.

Examples of implementation will be described below with reference to the drawings.

Reference numeral 1 indicates a machine frame of a transplanter. An engine 2 is mounted on the front of the machine frame 1, and wheels 3 are attached below. The wheels 3 receive the rotation of the engine 2 via a chain 4, and the machine body is moved forward ( Proceed in the direction of the arrow). Machine frame 1
A seedling stand consisting of a front seedling stand 5a and a rear seedling stand 5b is fixed on top, the front seedling stand 5a is steeply inclined in the direction opposite to the direction of movement of the aircraft, and the rear seedling stand 5b is positioned above it. The surface should be gently sloped or horizontal. The rear seedling stand 5b is constituted by a mechanism having a seedling feeding function such as a belt conveyor. Reference numeral 6 denotes a pot body made of continuous paper cylinders, which is placed on the belt conveyor of the rear seedling stand 5b.

7, 7 is a pair of guide wheels, and the rear seedling stand 5
It is provided at the upper part of the front seedling stand 5a, facing the rear end of the conveyance of the seedlings b, and the interval is such that the continuous paper tube-set potted seedlings 6 connected in a meandering manner on the rear seedling stand 5b are sequentially peeled off from the front row. , and are spaced at intervals equal to or larger than the width of the peeled potted seedling rows 6-A, and are mutually rotated in the feeding direction by a rotation mechanism to be described later. For this reason, pulling out of the potted seedling row 6-A is facilitated, and unnecessary pulling resistance is not applied.

Following the guide wheels 7, 7, a row of potted seedlings 6-A
A pair of pressing plates 8, 8 are provided which are approximately equal in height to , and one pressing plate 8 is fixed to a shaft 19 that passes through the front seedling stand 5a and rotates by means described later. The other pressing plate 8 is fixed by a mounting rod 20 fixed to the front seedling stand 5a, and the lower end of the shaft 19 and the lower end of the mounting plate 20 are connected by a spring 10. For this reason, the pressing plate 8 on the mounting plate 20 side is fixed, but the pressing plate 8 on the shaft 19 side swings by means described later, and the potted seedling rows 6- A is always pressed by the effect of the spring 10, but is released when the shaft 19 rotates.

At a position facing the ends of the pressing plates 8, 8,
A stop plate 9 is provided, and the stop plate 9 retracts from the surface of the front seedling stand 5a, and as described later, the stop plate 9
A groove is provided in the center to allow the connecting portion of the potted seedling row 6-A to pass through. Therefore, when the potted seedling row 6-A is released by the rotation of the shaft 19, it descends, and the seedlings at the tip end at the stop plate 9.
It will come into contact with and stop.

Numeral 11 is a planting holder, and a predetermined number of planting holders are fixed to the holder attachment ring 12 facing the front seedling stand 5a.
The planting holder 11 rotates as the attachment ring 12 rotates. This rotation causes the planting holder clamping part 11'
When the paper tube 6-B1, whose tip is supported by the stop plate 9, is clamped, the press plate 8, which is interlocked with the means described later, releases the pressure, and the stop plate 9 is moved to the front seedling stand 5.
The planting holder 11 sinks to the back surface of the paper tube 6-B1 and rotates downward one by one while holding the tip paper tube 6-B1. For this reason, the continuous potted seedling row 6-A advances along the pull-out path, but when it advances by the length of the leading paper cylinder 6-B1, the stop plate 9 protrudes from the upper surface of the front seedling stand 5a, and the leading paper cylinder 6-B1 advances. −
It blocks the front side of the paper cylinder 6-B2 next to B1, stops the progress of the paper cylinder-collected potted seedling row 6-A, and
9 returns to its original state, and the pressing plate 8 again presses the side surface of the paper tube-collected pot body seedling row 6-A. For this reason, the tip paper cylinder 6-B
1 is lowered while being held in the planting holder 11, the connecting portion is cut, and the plant is planted at a predetermined position cut in a groove in the main field by means to be described later. In order to carry out the above operation, the planting holder 11, the stop plate 9, the pressing plate 8, and the guide wheel 7 are all driven in conjunction with each other, and the chain wheel 15 provided on the shaft 3' of the wheel 3 and the machine frame 1 A chain 16 is attached to a chain wheel 15' fixed to the shaft 14 of the cam 13 provided in A chain 18 is also provided between the chain wheel 17 and the driving force of the engine 2 is transmitted to the holder attachment wheel 12 via the chains 4, 16, and 18. On the other hand, the surface of the cam 13 is in sliding contact with the lower end of the sliding rod 9' forming the lower part of the stop plate 9, and the planting holder 11 is in sliding contact with the tip paper cylinder 6-B.
1, the stop plate 9 moves to the lower surface of the front seedling stand 5a, and when the potted seedling row 6-A advances by one paper cylinder, the cam 13 is configured to protrude to the upper surface of the front seedling stand 5a. It is made into a sliding contact.

On the other hand, the shaft 19 fixed to one of the pressing plates 8, 8 extends downwardly through the front seedling stand 5a, and the mounting rod 20 of the other pressing plate 8 is attached to the front seedling stand 5a. The shafts 19' and 20' are fixed at right angles to the shaft 19 and the mounting rod 20, respectively, and springs 10 are tensioned on the shafts 19' and 20'. The lower part of the shaft 19 projects in the right angle direction to form an engaging pawl 21, and this engaging pawl 21 has a protrusion wheel 23 having protrusions corresponding to the number of planting holders 11.
is in contact with This protruding wheel 23 has a protruding axle 24
The upper end of the shaft 24 fits into a bearing provided on the back surface of the front seedling stand 5a, and a bevel gear 25 provided at the lower end.
is engaged with and interlocks with a bevel gear 27 provided at one end of a shaft 26 provided on the machine frame 1. The rotation of the shaft 26 is transmitted by a chain 30 stretched between a chain wheel 28 of the shaft 26 and a chain wheel 29 provided on the camshaft 14.

At this time, the rotation of the planting holder 11 and the rotation of the protruding wheel 23 should be set to the same rotational speed in advance, and the engagement time between the engaging claw 21 and the protrusion should be made to correspond to the time for the planting holder 11 to pull out one paper tube. When the planting holder 11 clamps the tip paper tube 6-B1, the engagement claw 21 and the protruding wheel 23 engage, and the shaft 19 rotates against the spring 10, causing the lower part of one of the pressing plates 8 to The pressure on the potted seedling row 6-A is released, and as the planting holder 11 descends, the pressure plate 8
The paper tube-collected pot-body seedling row 6-A is advanced without being subjected to pull-out resistance due to pressure. After that, when it advances by one paper cylinder, the engagement claw 21 and the projection wheel 23 are disengaged, and the spring 10 returns the pressing plate 8 to its original position, so that it presses the potted seedling row 6-A. , to prevent the seedling row 6-A from falling on the front seedling stand 5a. The guide rings 7, 7 provided at the upper end of the seedling stand 5a are covered with a cushion material 31 such as sponge, soft rubber, felt, etc., and the rotating shafts 32, 32 fitted and fixed in the center are used to guide the seedlings. A bevel gear 33 is fixed to the lower end of the bevel gear 33 passing through the portion 5a.

This bevel gear 33 is a shaft 3 provided in the machine frame 1.
The shaft 3 engages with the bevel gear 35 fixedly attached to the shaft 3.
4 and a chain wheel 37 provided on the shaft 26. By making the rotational speed of the guide wheels 7, 7 the same as the speed at which the planting holder 11 pulls out the potted seedling rows 6-A, the rotation speed of the guide wheels 7, 7 is set to be the same as the pulling speed of the planting holder 11. This prevents the paper from being sent to the machine and eliminates the pull-out resistance at the time of pull-out. The drive of the belt conveyor provided in the rear seedling stand 5 may be linked by a chain from the wheel shaft 3' or may be linked by a chain from the shaft 34 that rotates the guide wheel 7. is set such that when the planting holder 11 rotates, the potted seedling row 6-A moves forward one pitch when the potted seedling row 6-A pulls out an example of an aggregate.

This invention has the above configuration, and when the engine 2 is driven, the wheels 3 rotate to advance the transplanter body. At the same time, the camshaft 14, which is interlocked with the vehicle linkage shaft 3' through the chain 16, also rotates.
Chains 18, 3 are connected with this camshaft 14 as a base point.
Since 0 and 38 rotate in conjunction with each other, the planting holder 11
rotates and clamps the tip paper cylinder 6-B1 of the potted seedling row 6-A which is stopped at the position of the stop plate 9 of the front seedling stand 5a. At this moment, the stop plate 9 sinks to the lower surface of the front seedling stand 5a due to the operation of the cam 14, and the protrusion of the protrusion wheel 23 moves to the pressure plate 8 due to the rotation of the protrusion axle 24.
engages with an engaging claw 21 provided on a shaft 19 fixed to the
Since the shaft 19 is rotated, the potted seedling row 6-A of the pressing plate 8
The pressure on the seedling row 6-A is released, and while the planting holder 11 rotates while holding the tip paper tube 6-B1,
is pulled out, but there is no resistance to the withdrawal.

Next, when the holder 11 with one paper cylinder is rotated, the stop plate 9 is moved to the front seedling stand 5 by the operation of the cam 13.
a The paper tube 6 that protrudes from the top surface and is next to the tip paper tube 6-B1
-B2 is closed, and the engaging claw 21 and the protrusion of the protruding wheel 23 are also disengaged, and the pressing plate 8 is in a state of pressing the potted seedling row 6-A from both sides, but the planting holder 11 is Since it is still rotating, the tip paper cylinder 6-
Separate B1 while holding it in place and plant it at the actual planting position. Furthermore, when the next planting holder 11 clamps the paper tube seedling 6-B2 which has become the next tip, the same operation is repeated again to perform the transplanting work.

In this invention, when the planting holder grips and pulls out the paper tube seedlings at the tip of the continuous rows of paper tube seedlings as described above,
This pulling force pulls out rows of seedlings one after another, and stops the next paper tube seedling at the tip with the stop plate set at a predetermined position, and then separates the paper tube seedlings, so the planting holder is always in the specified position and accurately. The top paper cylinder can be held between the paper tubes, and when the seedlings are pulled out in conjunction with this drawer, the pressure on the rows of seedlings is released, and the puller is pulled out in rows from the aggregate using a rotating guide wheel, eliminating pullout resistance. Therefore, it is possible to completely prevent the rows of seedlings from being cut midway when they are pulled out, making the transplanter extremely easy to work with.

Although the guide wheel is forcibly driven in the above explanation, it can also be used as a free roller as it can almost eliminate the pull-out resistance, and the stop plate does not protrude or sink on the surface of the seedling stand. In addition to this structure, the object of the present invention can be sufficiently achieved by a structure in which the stop plate is opened left and right on the seedling stand surface and the stop plate is retracted from a predetermined position to allow the tip paper tube seedlings to pass through.

The transplanting machine of the present invention is particularly effective when used for transplanting seedlings of vegetables, tobacco, etc. grown in large-diameter continuous paper tubes.

[Brief explanation of drawings]

FIG. 1 is a side view of the device of the present invention, FIG. 2 is a plan view, FIG. 3 is a detailed sectional view of the pressing plate, and FIG. 4 is a cross-sectional view of the pressing plate. 1...Machine frame, 5a...Front seedling stand, 5b...Rear seedling stand, 6...Paper tube assembly potted seedlings, 6-A...Potted seedling row, 8...Press plate, 9... Stop plate, 11... Planting holder, 19... Shaft, 23... Projection wheel.

Claims (1)

[Scope of Claims] 1. In a transplanting machine that peels and pulls seedlings in continuous paper tube cluster pots placed on a seedling stand in rows, separates them into individual paper tube seedlings, and plants them in the main field, the seedlings on the rear seedling stand A resistance removing mechanism when pulling out a row of continuous paper tube pots and seedlings is provided, which consists of a pair of guide wheels facing the end of the feeding mechanism and a pressing plate following the guide wheels. A continuous paper tube pot body seedling row stop plate is provided that comes into contact with the front surface of the seedling tube, and a stop plate is used to release the pressure from the press plate and to move the stop plate to the lower surface of the seedling stand or to the left and right. A device for separating and transplanting seedlings in pots made of continuous paper tubes, characterized in that the device is linked to the rotation of a transplant holder that passes through a position. 2. The resistance removal mechanism uses the front part of the seedling stand as a steeply sloped surface, and uses the continuous paper cylinder pot seedling row as a pull-out part, and the planting holder includes a pressing plate that presses the continuous paper cylinder pot seedling row from the side on the top surface. The continuous paper cylinder grouped pot seedling according to claim 1, wherein the pressing plate releases the pressure on the seedling row while holding the cutting edge seedling in the seedling row and pulling out one pitch of paper cylinder seedlings. isolated implantation device. 3. A patent claim characterized in that the resistance removing mechanism includes a pair of free rollers or forced drive rollers disposed at the upper end of the steeply sloped surface of the seedling stand, and the distance between the rollers is set to be larger than the width of the row of seedlings in the paper cylinder pot. A device for separating and transplanting seedlings in continuous paper cylinder pots according to item 1 or 2. 4. The resistance removing mechanism is characterized in that the rotating circumferential speed of the pair of forced drive rollers provided at the upper end of the steep slope of the seedling stand is approximately the same as the rotating speed of the plant holder, and is rotated in the direction of the pull-out path. An apparatus for separating and transplanting seedlings in continuous paper cylinder pots according to claim 1, 2, or 3.