JPH083224Y2 - Seedling splitting device for straw transplanter - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention relates to a seedling splitting device in a straw transplanter.

(B) Conventional technology In the conventional strawberry transplanter, a planting body for planting the delivered seedlings one by one on the field is provided on the delivery side of the seedling supply table.
A seedling supply path formed by the left and right side plates is provided on the seedling supply table, a cutter that advances and retracts in the lateral direction is provided on one side of the sending section of the seedling supply path, and a groove into which the cutter enters is provided on the other side. Japanese Patent Laid-Open Publication No. 55-85303 discloses a seedling dividing device in a strawberry transplanting machine, which is provided with a cutter to cut the seedlings of the strawberries.

Further, a seedling dividing device in a strawberry transplanting machine provided with an upper split claw and a lower split claw at the delivery part of the seedling supply path, and the seed split is scratched out by the upper split claw is disclosed in JP-A-61-15610. Already known.

(C) Problems to be solved by the invention In the seedling dividing device in the first known strawberry plant transplanter, since the root of strawberry plant is strong, it is pushed into the groove on the other side by the cutter, resulting in a cutting error and clogging. As a result, the seedlings were pushed and biased to one side of the seedling supply path, the supply to the plantlets became unsuccessful, and the succession to the plantlets became uncertain. The second one is a method in which the upper split claw penetrates the seedlings from above, cutting the stems and shoots of the strawberries, so that the transplanted seedlings do not germinate and are pulled backward to scrape. As a result, the seedlings are torn off, which causes the divided seedlings to become large or small.

(D) Means for Solving the Problems The present invention relates to a strawberry planting machine in which a planting body for planting the delivered seedlings one by one in the field is provided on the delivery side of the seedling supply table. Provide a pair of left and right cutters corresponding to the root part of the seedling at the end of the supply route of the stand, and these cutters,
By interlockingly interlocking to cut the root plant part by intermittently advancing and retreating with synchronization, and by configuring the cut seedlings to be planted in the field by the planting body, the above-mentioned problems Settled.

(E) Action The machine runs while driving the plant and each supply roll, supplying large seedlings to the seedling supply path, and sending them in strips according to the conventional method, the pair of left and right cutters are synchronized Then, it advances and cuts the root stock surely from both sides, and the plantlets inherit this and plant it in the field.

At that time, the divided seedlings will have a certain size and will not be clogged, and the seedlings will have an orderly shape, so that the plantlets will inherit the seedlings in a certain posture. , Can be planted in an orderly standing posture. In addition, the shoots of seedlings are less likely to be cut and the germination rate is improved.

(F) Embodiment An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a planting device mounted on a rear portion of a passenger traveling vehicle so as to be able to travel by a top link 2 and a pair of left and right lower links 3.
Similar to the passenger rice transplanter, the input shaft 6 of the main transmission case 5 is driven by the PTO shaft of the passenger traveling vehicle through an intermediate shaft having a universal joint, and extends from the main transmission case 5 to both left and right sides. Planter cases 7 and 7 are attached to the cylinder frame containing the shaft at a predetermined interval.Although not shown, floats are attached to the lower parts of these planter cases 7 and 7, and a flank type is used at the rear. The planting body 8 ... is attached.

Front and rear brackets 9 of the main transmission case 5,
The feeding table 10 fixed to and supported by 9 is inclined so that the rear part becomes low, and four sets of seedling feeding parts are laterally spaced on the bottom plate 12 fixed to the upper surface of the frame body 11. Each seedling feeding section has a pair of left and right first feeding rolls 13,1.
3, second supply rolls 14,14 and third supply rolls 15,15,
A guide rod 17 that folds in half at the lower end (delivery part) and runs along the outside of the supply path 16 and the upper part (the supply start end side) expands sequentially and guides the stalk of strawberries, and the upper part of the guide rod 17. And a supply gutter 18 connected to the third supply roll 15 and a drive pulley 21 having the same diameter as that of the third supply roll 15 and a small guide roller 19 and 19 supported therebelow. The first supply roll 13 has a large number of grooves on its outer periphery and has a star wheel shape when viewed from the axial direction. 14 is composed of a basket rotor 14a having a large number of spokes fixed between the outer peripheries of a pair of upper and lower discs, and a star wheel 14b fixed to the rear surface thereof, and the third supply roll 15 is composed of a basket rotor.

Next, the transmission will be described with reference to FIGS. 3 and 4. The drive sprocket 23 mounted on the output shaft 22 protruding from the rear surface of the main transmission case 5 is connected to the intermediate shaft via the chain 25.
One sprocket 28 that is transmitted to a sprocket 27 below 26 and is attached to the upper part of the intermediate shaft 26 drives a sprocket 30 of a cam shaft 29 described later via a chain 31, and the other sprocket 32 is connected to a reduction unit 34. The sprocket 35 of the supported deceleration drive shaft 33 is driven by the chain 36, and the deceleration drive shaft 33 and the deceleration passive shaft 37 are provided with a plurality of stages of deceleration sprockets and a deceleration mechanism (a plurality of chains attached to them). A deceleration drive shaft 33 that rotates 40 times per minute through a combination of reduction gears is used to reduce the speed of the deceleration passive shaft 37 so that it rotates 8 times per minute. The pair of sprockets 39, 39 having the same diameter are formed by connecting the sprockets 40, 40 integrated with the shafts 42, 42 on the left side of the supply paths 16, 16 located in the middle part with the second supply roll 14 to the chains 41, 4
Drive through 1.

Another sprocket 43 mounted on the shafts 42, 42 drives the sprocket 43a mounted on the shaft 42a of the second supply roll 14 of the supply path 16 at the outer end via the chain 44 to drive the shaft 4
Drive gears 45 mounted on the second and second supply rolls 14 are meshed with drive gears 45 mounted on the other side 42, 42a, and lower sprocket 47 mounted on the shaft 46a of the passive gear 46.
Is connected to the sprocket 50 mounted on the shaft of the first supply roll 13 by the chain 48, and the sprocket 51 (having the same number of teeth as the sprocket 47) on the upper stage is connected to the sprocket 52 mounted on the shaft of the third supply roll 15 by connecting the chain 53. The lower sprocket 55 attached to the upper part of the shafts 42, 42a of the drive gears 45, 45 and the sprocket 56 attached to the shaft of the first supply roll 13 are stretched with a chain 57, and the upper stage is connected. Sprocket
A chain 59 is stretched between 58 and the sprocket 60 of the third supply roll 15, and the tooth ratio of the drive gear 45, the passive gear 46, and the sprockets 47,50,51,52,55,56,58,60. The rotation ratios and peripheral speed ratios of the pair of left and right supply rolls and the front and rear supply rolls are set as shown in the following table.

The stock cutting device 61 disposed close to the ends of the delivery belts 20, 20 is a knife-shaped cutter 63, 6 which is screwed onto the upper part of a pair of left and right sliders 62, and which opposes from the left and right.
The sliders 62 and 62 are fitted with the bosses fixed to the middle and lower parts of the sliders 62 and 65 to the rods 65 and 65, and the lower boss of one slider 62 is fixed to the rod 65 with the pin 64. It is fixed to and has a U-shape in plan view 66
The rods 65 and 6 in the holes formed in the bent parts on both sides of the rod.
5 is supported by penetrating left and right slidably,
A single row of rods 65 ··· are connected by a link 67, and a chain 68, which connects the upper and lower rods 65, 65 at the left end, is hung on a rotatable sprocket 69, and the right end rods 65, 65 are L-shaped in plan view. Of the rod 65 under the
The end portion of the arm 70 is connected by a pin to one end of an arm 70 supported by a fulcrum shaft 71, and the other end of the arm 70 is interlockingly connected to one end of an arm 73 supported by an upper fulcrum shaft 72 via a connecting rod 74. The roller at the other end of the arm 73 is pressed against the peripheral surface of the cam 75 fixed to the cam shaft 29.

In addition, compression springs 76, 76 for separating them are respectively interposed between the bosses of the pair of sliders 62, 62,
Between the upper boss of the slider 62 on the right side and the flange of the rod 65, the slider 62 is returned to the position shown and a return spring 77 stronger than the compression spring 76 is interposed.

Further, in the planting body 8, an inverted U-shaped bracket 79 is screwed to the tip of the planter arm 78 shown in FIGS. 5 and 6, and a pipe 81 welded to the lower ends of a pair of left and right guides 80 is attached.
A round rod 82, 82 welded to the lower end of the bracket 79 is rotatably fitted to the round rod 82, and the guide 80, 80 is urged to rotate so as to be closed by winding springs 83, 83 wound around the pipe 81. It is configured by screwing the base portions of a pair of beaks 85, 85 to each other, and the peaks 85, 85 thereof are formed in an arc shape so that their tips approach each other.

As shown in FIG. 6, the planter arm 78 has a base portion supported by a swing arm similar to a crank type plant, and a middle portion thereof is rotatably supported by a crank pin 84. The tip of 85 swings up and down along the locus shown by the chain line in FIG. 3, and the swing rod pivotally supported near the base by a fulcrum pin 86.
Reference numeral 87 denotes an operating rod whose base is slidably contacted with a fan-shaped cam 88 fixed to the crank pin 84, and a tip end can be slid forward and backward.
Since it is linked to the base of 90, the actuating rod 90 is moved to the A position and the B position each time the fan-shaped cam 88 rotates together with the crank pin 84.
Reciprocally move to and from the position, a mounting plate 91 having an L-shape in a side view is screwed to the tip of the operating rod 90 with a nut 92, and the mounting plate 91 is rotatable with pins on both sides thereof. The pair of left and right push rolls 93, 93 mounted on the
The guide plates 80a, 80a, which extend from the middle of 0, 80 toward the planter arm 78 while expanding in a V shape, are in contact with or close to the inner surfaces of the guide plates 80a, 80a.

Next, the operation will be described. When the input shaft 6 is driven by the PTO shaft of this machine, a large number of the first supply roll 13, the second supply roll 14, the third supply roll 15 and the delivery belt 20 face the supply path 16. The side that rotates turns downward and the cam 75
Causes the arm 73 to reciprocally rotate by a predetermined angle, so that the lower rod 65 is pushed and pulled through the connecting rod 74 and the arm 70,
When pulling, the left slider 62 moves to the right,
Since the upper rod 65 moves to the left via the chain 68, the slider 62 on the right moves to the left while being held by the return spring 77, and eventually the cutter 6
As indicated by the chain line, 3,63 advances from the left and right to overlap and cut the root stock from both sides, and the compression springs 76, 76 are respectively compressed.

When the cam 75 further rotates to push the rod 65, the lower rod 65 slides to the left and the upper rod 65 slides.
65 slides to the right and the compression spring 76 expands,
The cutters 63, 63 return to the positions shown by the solid lines.

Since the crank arm of the planting body 8 rotates with the rotation of the crank shaft, and the crank pin 84 protruding from the tip of the plant moves circularly, the tip of the beak 85 has an elliptical shape that is vertically long as shown. As the locus moves up and down, the operating rod 90 is moved forward and backward by the fan-shaped cam 88 via the sliding rod. that time,
Since the mounting plate 91 screwed to the tip of the operating rod 90 also moves forward and backward, the push rolls 93, 93 move backward when the planting body 8 rises and grabs the seedlings, thereby winding the pair of beaks 85, 85. When the seedlings are gripped by closing them with the springs 83, 83 and descending in this state to plant the seedlings in the field, the push rolls 93, 93
Advances and pushes open the guide plates 80a, 80a, so that the beaks 85, 85 open and, after planting, rise in the open state.

When the passenger traveling vehicle is moved forward while driving each part as described above, when the seedlings of straw grass are supplied to the supply gutter 18 ..., the stems are held from both sides by the wide part of the guide rod 17, and each supply path In 16, the root section is the left and right first supply rolls 13,13
Is sent out while being compressed by the second supply roll 1
Since the peripheral speed of 4,14 is faster than that of the first supply rolls 13,13, the root stock is bitten while being stretched, and the gap between them is narrower than the gap between the first supply rolls 13,13, so the root stock portion is further compressed. To do. At that time, since the peripheral speed of the second supply roll 14 on the right side is faster than the peripheral speed of the second supply roll 14 on the left side, the root part is compressed by the left and right second supply rolls 14 and 14 and the right side is Sparse, then third supply roll 15,15
When it is passed on to the 3rd
By feeding the peripheral speed of the supply roll 15 faster than the peripheral speed of the third supply roll 15 on the right side, the root stock on the side of the supply roll 15 is stretched and made sparse, and eventually the root stock is gradually compressed thinly in three stages and the rotation difference is increased. The buds are gradually stretched without causing any damage to the buds, and the buds are sandwiched and conveyed by the delivery belts 20 and 20 in this state.
Is cut to a certain size, and the beaks 85,85 of the plant 8 rotate the left and right sides of the cut seedlings to sandwich them, and then descend as they are and insert them into the mud to open the beaks 85,85. It leaves the stock and rises in this open state. When the seedlings are clamped, the tips of the beaks 85, 85 (the portions that clamp the seedlings) are arcuate so that they approach each other.
The seedlings can be securely held without applying a particularly large clamping pressure, and thus the shoots of the seedlings can be prevented from being damaged.

(G) Effect of the Invention As described above, the present invention is a strawberry planting machine in which a planting body 8 for planting the delivered seedlings one by one is arranged on the delivery side of the seedling supply table 10 as described above. A pair of left and right cutters 63, 63 corresponding to the root portion of the seedling is provided at the end of the supply route 16 of the table 10, and the root portion is cut by synchronizing and intermittently advancing and retracting the cutters 63, 63. As described above, since the cut seedlings are planted in the field by the planting body 8, the pair of left and right cutters 6 is used.
3,63 ensures that the rootstock of strawberries sent from the seedling supply route does not move out from both sides of the end of the seedling supply route and is displaced to the left or right, and does not leave a connection with the succeeding seedling strain. The seedlings can be reliably planted without causing a clogging and making the seedling supply uncertain or making a mistake in inheriting the planting body 8. Moreover, since the shoots of the seedlings are rarely cut, the germination rate can be improved.

[Brief description of drawings]

The drawings show one embodiment of the present invention, wherein FIG. 1 (a) is a plan view of one seedling supply path, FIG. 1 (b) is the same as the rear view, and FIG. 2 is a plan view of a planting device, FIG. 3 is a side view of the same,
FIG. 4 is a plan view of the transmission device, FIG. 5 (a) is a plan view of the plant, FIG. 5 (b) is a side view of the same, FIG. 4 (c) is a transverse sectional view of the same, and FIG. It is a longitudinal cross-sectional view of an attachment. 6 ... Input shaft, 8 ... Planter, 10 ... Supply stand, 13 ... First supply roll, 14 ... Second supply roll, 15 ... Third supply roll, 16 ... Supply path, 17 ...... Guide rod, 18 …… Supply gutter, 20 …… Sending belt, 61 …… Stock cutting device, 62 …… Slider, 63 …… Cutter, 75 …… Cam, 78 …… Planter arm, 80 …… Guide, 85 …… Beak, 88 …… Fan cam, 93 …… Push roll

Claims (1)

[Scope of utility model registration request] 1. The seedlings are sent to the sending side of the seedling supply table 10.
In the strawberry planting machine in which the planting body 8 to be planted in the plant field is arranged, a pair of left and right cutters 63, 63 corresponding to the roots of the seedlings are provided at the end of the feeding route 16 of the seedling feeding base 10, The cutters 63, 63 are interlockingly linked so as to cut the root portion by synchronously moving forward and backward intermittently, and the cut seedlings are planted in the field by the planting body 8. Seedling splitting device in a straw transplanter characterized by: