JP2586860B2 - Seedling plant seedling supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a seedling transplanter for taking out a seedling placed on a seedling mounting table from one side thereof and transplanting the seedling. The present invention relates to a seedling supply device.

[0002]

2. Description of the Related Art Japanese Patent Publication No.
As disclosed in JP-A-29447, there is a type in which a seedling feeding belt is provided on a bottom plate portion for sending seedlings placed on a seedling mounting table to a seedling planting apparatus.

[0003]

However, in the prior art, since the seedling feeding action is performed in a state where the position of the driven roller of the seedling feeding belt is fixed, fluctuations in seedling feeding load and the like can be absorbed. However, the seedling feeding action could not be performed properly.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a hole 4d is formed in a bottom plate 4 which receives and guides the bottom surface of a seedling of a seedling mounting table 3 which is supported by an airframe and reciprocates left and right. The seedling feed belt 11 for transferring seedlings is provided around the drive roller 10a and the floating roller 10b provided on the lower side and the upper side of the hole 4d, and guides the side surfaces of the seedlings to the left and right sides of the bottom plate 4. In the seedling supply device of the seedling planting machine provided with the side plate 5
A driven shaft 9b provided with a guide hole 8b in a supporting frame 8 fixed to the back side of the seedling mounting table 3 and provided with an upper floating roller 10b.
Characterized in that a spring 12 is provided on the back side of the side plate 5 of the seedling mounting base 3 so as to urge it upward in a state where it penetrates through the guide hole 8b to stretch the seedling feed belt 11. It is a seedling supply device of a planting machine.

[0005]

According to the present invention, a bottom plate 4 for receiving and guiding the bottom surface of a seedling of a seedling mounting table 3 which is supported by the body and reciprocates left and right.
A seedling feed belt 11 for transferring seedlings around a driving roller 10a and a floating roller 10b provided below and above the hole 4d, and provided on the left and right sides of the bottom plate 4. In the seedling supplying device of the seedling planting machine provided with the side plate 5 for guiding the side surface of the seedling, a guide hole 8b is provided in a supporting frame 8 fixed to the back side of the seedling mounting table 3, and an upper floating roller 10b is provided. A spring 12 for urging the driven shaft 9b upward with the driven shaft 9b penetrating through the guide hole 8b to stretch the seedling feed belt 11 is provided.
Is a seedling supply device of a seedling planting machine provided on the back side of the side plate 5 of the seedling mounting table 3, the seedling feeding belt 11 is operated by the lower drive roller 10a, and the side from which the seedlings are sent out is the tension side. The seedling is not loosened at the time of feeding, and the spring 12 acts to urge the driven shaft 9b provided with the upper idler roller 10b upward to stretch the seedling feeding belt 11, so that the structure is simple. It is possible to obtain a seedling supply device of a seedling transplanter that can feed seedlings appropriately.

Since the upper idle roller 10b is supported by the upward biasing force of the spring 12,
When the seedling feed belt 11 is slightly extended due to long-term use, or when the load such as the seedling feed suddenly increases suddenly, etc., the shape error and the load increase of the seedling feed belt 11 can be absorbed by the spring 12, and the various parts can be used for many years. A proper seedling feeding action can be performed while preventing damage to the seedlings.

Further, since a spring 12 for extending the seedling feeding belt 11 is provided on the back side of the side plate 5 of the seedling mounting table 3,
Even if the seedling table 3 that reciprocates left and right is formed of a thin member in order to make it lightweight, the side plate 5 that is formed to be long in the vertical direction on the seedling table 3 may be a reinforcing rib. Since the operation is performed, the floating roller 10b is appropriately supported by the support frame 8 and the spring 12 as described above, so that the seedling feeding operation is good and the seedling can be properly planted.

[0008]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, reference numeral 1 denotes an airframe, which is composed of a main planting portion transmission case 1a and a sub planting portion transmission case 1b integrally provided at a predetermined interval rearward from the main planting portion transmission case 1a. At the rear end of the attached transmission case 1b, there is provided a seedling planting device 2 in which a seedling planting rod 2a moves up and down elliptically by a crank and a swinging rod.

Numeral 3 is a seedling mounting table. As shown in FIG. 4, a seedling mounting portion 3a formed by the bottom plate 4 and the side plate 5 in the vertical direction in plan view is provided on the left and right in the number of the seedling planting apparatuses 2. Only being articulated.
In the structure of the seedling mounting table 3, the side plates 5 at the left and right end portions are formed of a synthetic resin frame wide left and right, the side plate 5 at the middle portion is formed of a synthetic resin frame narrow right and left, and the bottom plate 4 is a lower plate. It comprises a portion 4a, an upper portion 4b, left and right side wall portions 4c, 4c, holes 4d, 4d, and a bottom portion 4e left between the holes 4d, 4d. The structure is fixed.

Reference numeral 6 denotes a projection provided on the lower portion 4a, the upper portion 4b, and the bottom 4e of the bottom plate 4 so as to protrude upward. Pointed. Reference numeral 7 denotes a rib, which protrudes below the bottom portion 4e as shown in FIG. 5, and reinforces the bottom portion 4e so that the width becomes narrower in the right and left direction.

Reference numeral 8 denotes a support frame, which is made of an iron plate as shown in FIGS. 5 and 7, and is fixed to the back surfaces of the flanges of the side plates 5, 5 with bolts. 8a is a lower bearing hole, 8b is an upper guide hole, and the guide hole 8b is cut out from under the support frame 8. Reference numeral 9a denotes a drive shaft, and 9b denotes a driven shaft. As shown in FIG. 3, the drive shaft 9a is provided with an axial V-shaped groove on the outer periphery.

Reference numerals 10a and 10b denote a driving roller and a floating roller, as shown in FIGS. 3 and 5, the lower driving roller 10a.
, The drive shaft 9a is inserted and fixed, and the upper idler roller 10b is provided with a driven shaft 9b which is freely rotatable. Numeral 11 is a seedling feed belt, as shown in FIGS.
It has a wide width corresponding to the left and right widths of the holes 4d, 4d formed in the bottom plate 4 of the seedling mounting portion 3a, and has on its outer surface a number of projections 11a that bite into the back of the mat seedling floor. Have been. The seedling feed belts 11 are wound around the driving rollers 10a and the floating rollers 10b.

Further, the driven shafts 9b are provided with guide holes 8b.
Is pulled upward by a spring 12 along the seedling feeding belt 11.
... is stretched. At this time, the belt 11
The upper surface of the outer periphery is substantially equal to the upper surface of the bottom plate 4 or slightly protrudes upward. Numeral 13 denotes a seedling receiving plate, as shown in FIG. 3, which has an L-shaped cross section, receives the bottom plate portion thereof facing the lower end of the seedling mounting table 3, and places it on the seedling mounting portion 3a. Seedling split ports 14 are provided to support the seedlings from falling down and for the tip of the seedling planting rod 2a of the seedling planting device 2 to intervene.

Reference numeral 15 denotes a ratchet mechanism, as shown in FIG.
A ratchet wheel 15a provided on the left and right of the drive shaft 9a and wedged to the shaft 9a;
, An operating lever 15b rotatably pivoted around the shaft 9a, a ratchet claw 15c attached to the operating lever 15b, and an operating lever 15b that is elastically held so as to rotate in the direction opposite to the arrow D. It consists of a spring 15d.

Reference numeral 16 denotes an adjusting device, as shown in FIG. 3, a rod 16a having one end attached to the operating lever 15d,
A bracket 16b fixed to the support frame 8 provided with a hole through which the other end of the rod 16a is inserted, and a stopper 16c provided at the end of the rod 16a so as to be able to adjust the position in the direction of the rod, When the position of the stopper 16c is adjusted up and down through the pin 17 in the pin hole formed in the rod 16a, the position of the operating lever 15b is set so as to be shifted vertically.

Reference numeral 18 denotes a left-right reciprocating mechanism, which is provided in the main planting section transmission case 1a as shown in FIG.
A lead cam 19 which is driven and rotated, a lead metal 20 to which a lead claw engaging with the cam groove is attached, and a moving rod 21 which is fixed to the lead metal 20 and reciprocates right and left.
The left and right ends of the moving rod 21 protrude from the outside of the transmission case 1a.
Are connected by a connector 22 so that the seedling mounting table 3 reciprocates left and right.

Reference numeral 23 denotes a rotating arm, which is fixed to a rotating shaft protruding outward from the left and right sides of the main planting portion transmission case 1a, and is attached to the operating lever 15b when the seedling mounting table 3 reaches a lateral end. The lever 15b is rotated in the direction indicated by the arrow D. Numeral 24 denotes an actuator, as shown in FIG. 3, whose base side is rotatably fixed to a microswitch 25 interposed between the left and right ribs 7, 7 of the bottom 4e, and which is pierced into the bottom 4e. It protrudes from the formed bottom hole 26. And the microswitch 25
Is set to OFF when the actuator 24 is pressed by the lower surface of the seedling bed being placed in the seedling placing portion 3a, and is turned ON when not pressed, and an alarm is given by a warning device as appropriate.

In the drawing, reference numeral 27 denotes a center leveling float, and 28 and 29 denote side leveling floats. Next, the operation of the above example will be described. After the mat seedlings (potted potted plate-shaped seedlings are also possible) placed and accommodated in each seedling mounting part 3a of the seedling mounting base 3, the main planting part mission case is placed from the towing body (not shown) side. When the terrain floats 27, 28, and 29 are towed while contacting the ground with the soil surface while transmitting power to the input shaft 1a, the seedling mounting table 3 is moved by the reciprocating horizontal movement mechanism 18 to the moving rod 21 and the connecting body 22. The mat seedling, which is reciprocated horizontally from side to side through the mat, is placed on the lower end side of the seedling receiving plate 1.
3 and is moved sideways in sliding contact with the seedling dividing port 14.
… It is paid out one after another. At this time, the separation claw portion of the seedling planting device 2 intervenes from above into the seedling dividing ports 14 and separates and engages the seedlings one by one one by one, so that the seedlings are planted on the lower soil surface.

When the seedling mounting table 3 reaches the folded position at the lateral movement end, the operating lever 15b is engaged with the rotating arm 23 which is constantly rotating, and the operating lever 15b is rotated in the direction of arrow D. Then, the drive shaft 9a is rotated via the ratchet mechanism 15, the drive roller 10a is rotated, the seedling feed belts 11 are simultaneously rotated by a predetermined amount, and the mat seedling placed on the seedling feed belts 11 is moved. It is sent down.

In this manner, seedling feeding is always applied when the seedling placing table 3 reaches the lateral movement end, and the properly placed soiled plate-like seedling is fed out to the seedling dividing port 14. In this case, the seedling feed belt 11 is stretched on the left and right sides of the seedling placing portion 3a except for the narrow bottom 4e at the left and right intermediate portion of the bottom plate portion. Seedling feed belt 1
In step 1, seedlings are sent and sent securely.

In particular, holes 4d are provided in the bottom plate 4 for receiving and guiding the bottom surface of the seedlings of the seedling table 3 which is supported by the body and reciprocates left and right, and is provided on the lower side and the upper side of the holes 4d. In a seedling supply device of a seedling planting machine, the seedling feeding belt 11 for transferring seedlings is provided around the driving roller 10a and the idler roller 10b, and side plates 5 for guiding the side surfaces of the seedlings are provided on the left and right sides of the bottom plate 4. A guide hole 8b is provided in a support frame 8 fixed to the back side of the seedling mounting table 3, and a driven shaft 9b provided with an upper floating roller 10b is urged upward with the driven shaft 9b penetrating the guide hole 8b. The spring 12 acting to stretch the seedling feed belt 11 is used as a seedling feeding device of a seedling planting machine provided on the back side of the side plate 5 of the seedling mounting table 3. Is activated and the side that sends out the seedlings becomes the tight side and loosens when sending the seedlings Of course, since the spring 12 acts to urge the driven shaft 9b provided with the upper floating roller 10b upward to stretch the seedling feeding belt 11, appropriate seedling feeding can be performed with a simple configuration. .

The upper floating roller 10b is supported by the upward biasing force of the spring 12, so that
Even if the load such as seedling feeding increases suddenly, the load increase can be absorbed by the downward movement of the floating roller 10b against the upward biasing force of the spring 12, thereby preventing damage to each part. The seedling feeding action can be performed properly. Further, since a spring 12 for stretching the seedling feed belt 11 is provided on the back side of the side plate 5 of the seedling mounting base 3, a thin member is used to make the seedling mounting table 3 reciprocating right and left lightweight. Even if it is formed, the side plate 5 which is formed in the seedling mounting table 3 in a vertically long state acts as a reinforcing rib, so that the floating roller by the support frame 8 and the spring 12 as described above. A good seedling planting operation can be performed by appropriately supporting 10b.

On the other hand, the driving roller 10a and the idle roller 10
b means that after the seedling feed belt 11 has been wound around,
Can be attached from below, so that the assembling workability is remarkably improved.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a seedling planter.

FIG. 2 is a sectional view of a main part of FIG. 1;

FIG. 3 is a partial cross-sectional side view of a main part.

FIG. 4 is a plan view of a main part.

FIG. 5 is a partial cross-sectional bottom view of a main part.

FIG. 6 is a bottom view of a main part.

FIG. 7 is a perspective view of a main part.

FIG. 8 is a perspective view of a main part.

FIG. 9 is a partial cross-sectional plan view of a main part.

[Explanation of symbols]

Reference Signs List 3 seedling mounting table 4 bottom plate 4d hole 5 side plate 8 support frame 8b guide hole 9b driven shaft 10a drive roller 10b idler roller 11 seedling feed belt 12 spring

Claims (1)

(57) [Claims] 1. A bottom plate 4 for receiving and guiding a bottom surface of a seedling of a seedling mounting table 3 reciprocating left and right supported by a machine body, and provided with a hole 4d in a bottom plate 4 and a drive provided on a lower side and an upper side of the hole 4d. Roller 1
In a seedling feeder of a seedling planting machine, a seedling feeding belt 11 for transferring seedlings is provided by being wrapped around the bottom plate 4 and side plates 5 for guiding the side surfaces of the seedlings to the left and right sides of the bottom plate 4. A guide shaft 8b is provided on a support frame 8 fixed to the back side of the shaft 3 and a driven shaft 9b provided with an upper floating roller 10b.
Characterized in that a spring 12 is provided on the back side of the side plate 5 of the seedling mounting base 3 so as to urge it upward in a state where it penetrates through the guide hole 8b to stretch the seedling feed belt 11. Seedling supply device for planting machine.