JPH0740816B2 - Seedling feeder for seedling planting machine - 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 planting machine for picking up and transplanting seedlings placed on a seedling mounting table one by one from one side of the seedling mounting table. The upper surface of the feeding belt is always stretched by the driving roller to stabilize the feeding performance of seedlings, and a separate unit is attached to the seedling mounting table to rationalize the production.

[0002]

2. Description of the Related Art In order to send seedlings placed on a seedling mounting table toward a seedling planting device, a seedling feeding belt is used at the bottom thereof, as in Japanese Utility Model Laid-Open No. 56-30726.

[0003]

2. Description of the Related Art In the prior art, as seen in the above publication, the drive roller is provided on the rear side with respect to the seedling feeding direction. Is on the loose side. That is, in the seedling feeding belt, the central portion of the feeding surface hangs down and the feeding action of the seedling becomes unstable. Further, when assembling the seedling feeding belt to the seedling mounting table, the work of winding the seedling feeding belt around the driving roller and the idle roller was very complicated and troublesome.

[0004]

In order to solve the above problems, the present invention provides a hole 4d in a bottom plate 4 of a seedling stand 3 which is supported by a machine body and reciprocates left and right, and the hole 4d is formed. In the seedling feeding device of the seedling planting machine provided with the driving roller 10a and the floating roller 10b provided on the lower side and the upper side of the seedling feeding belt 11 for receiving and transferring the seedling,
A guide shaft 8b provided with a floating roller 10b is engaged with and disengaged from a support frame 8 fixed to the back side of the guide frame 8a, and a guide portion 8b in the form of a notch is provided, and the guide shaft 8b is engaged and guided. Then, the seedling supply device of the seedling planting machine is characterized in that the spring 12 is attached while being biased upward by the spring 12.

[0005]

According to the present invention, the hole 4d is provided in the bottom plate 4 of the seedling stand 3 which is supported by the machine body and reciprocates left and right.
Seedling feeding belt 1 for receiving and transferring seedlings to a driving roller 10a and a floating roller 10b provided on the lower side and the upper side of d.
In a seedling feeding device for a seedling planting machine provided by multiplying by 1, a notch groove in which a driven shaft 9b provided with a floating roller 10b can be engaged with and disengaged from a supporting frame 8 fixed to the rear surface side of the seedling mounting table 3. Since the guide section 8b is provided, and the driven shaft 9b is engaged and guided by the guide section 8b and is attached in a state of being urged upward by the spring 12, the seedling supplying device of the seedling planting machine is characterized. The seedling feeding belt 11 is activated by the driving roller 10a on the lower side, and the side for sending out the seedlings becomes the tension side and does not loosen when feeding the seedlings, so that appropriate seedlings can be supplied and good seedling planting work can be performed.

Further, the driven shaft 9b provided with the upper floating roller 10b can be engaged with and disengaged from the support frame 8 and is mounted so that when engaged, it is guided by the guide portion 8b and pulled upward by the spring 12. Therefore, after assembling the seedling feeding belt 11 to the driving roller 10a and the floating roller 10b, the driven shaft 9b can be engaged with the support frame 8 and assembled to the seedling placing table 4, and the assembling work can be performed. This simplifies and improves production efficiency, and also facilitates repairs in case of failure.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, reference numeral 1 denotes an airframe, which is composed of a main planting part mission case 1a and a sub planting part mission case 1b which are integrally provided at a predetermined distance from the rear side of the main planting part mission case 1a. At the rear end of the attachment mission case 1b, there is provided a seedling planting device 2 in which the seedling planting rod 2a moves up and down in an elliptical shape by a crank and a swing rod.

As shown in FIG. 4, a seedling stand 3 is provided with a bottom plate 4 and a side plate 5, which are vertically connected in the longitudinal direction to connect seedling tanks 3a in the number of the seedling planting devices 2 ... Has been done.
In the structure of the seedling mounting table 3, the side plates 5 at the left and right ends are made of synthetic resin frames that are wide left and right, the side plates 5 at the middle are made of synthetic resin frames that are narrow left and right, and the bottom plate 4 is the lower side. It is composed of 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. It is fixedly configured.

Numeral 6 is a protruding strip provided on the lower portion 4a, the upper portion 4b and the strip bottom portion 4e of the bottom plate 4 so as to project upward, and its upper end is so set as to bite into the rear surface of the seedbed to be placed. It's sharp. Reference numeral 7 denotes a rib, which protrudes to a lower portion of the line bottom portion 4e as shown in FIG.

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 flange portions of the side plates 5 and 5 with bolts. Reference numeral 8a denotes a lower bearing hole, 8b denotes an upper guide portion, and the guide portion 8b is cut out from under the support frame 8. Reference numeral 9a is a drive shaft, and 9b is a driven shaft. As shown in FIG. 3, the drive shaft 9a is provided with an axial V groove on the outer circumference.

Reference numerals 10a and 10b are a drive roller and a floating roller, and as shown in FIGS. 3 and 5, the lower drive roller 10a.
The drive shaft 9a is inserted into and fixed to the drive shaft 9a, and the driven shaft 9b is provided in a freely rotatable manner on the upper floating roller 10b. 11 is a seedling feeding belt, as shown in FIG. 3 and FIG.
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 tank 3a, and the outer surface thereof is provided with a large number of protrusions 11a for feeding into the floor rear surface of the mat seedling. There is. The seedling feed belts 11 are wound around the drive rollers 10a and the floating rollers 10b.

Further, the driven shafts 9b ... Are pulled upward by the springs 12 ... along the guide portions 8b ..
Is stretched. At this time, the belt 11 has the holes 4
The upper surface of the outer periphery is provided so as to be approximately equal to the upper surface of the bottom plate 4 or to be slightly upwardly projected. Reference numeral 13 denotes a seedling receiving plate, which has an L-shaped cross section as shown in FIG. 3, receives the bottom plate of the seedling placing table 3 facing the lower end of the seedling placing table 3, and places the seedlings placed on the seedling tank 3a. A seedling dividing port 14 is provided to support the seedling planting device 2 so that the tip of the seedling planting rod 2a of the seedling planting device 2 intervenes.

Reference numeral 15 is 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, and the wheel 15a.
An actuating lever 15b pivotally attached to the outside of the shaft about a shaft 9a, a ratchet pawl 15c attached to the actuating lever 15b, and an actuating lever 15b so as to pivot in a direction opposite to the arrow direction. It consists of a spring 15d.

Reference numeral 16 is an adjusting device, and as shown in FIG. 3, a rod 16a having one end attached to the operating lever 15d,
It comprises a bracket 16b fixed to the support frame 8 having 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 that its position can be adjusted in the direction of the rod. When the position of the stopper 16c is vertically adjusted through the pin 17 in the pin hole formed in the rod 16a, the position of the operating lever 15b is set to be vertically displaced.

Reference numeral 18 denotes a left and right reciprocating mechanism, which is provided in the main planting portion mission case 1a as shown in FIG.
A lead cam 19 that is transmitted and rotated, a lead metal 20 to which a lead claw that engages with the cam groove is attached, and a moving rod 21 that is fixed to the lead metal 20 and reciprocates left and right.
The left and right ends of the moving rod 21 project from the outside of the mission case 1a, and the seedling table 3
The rear surfaces of the seedling mounting bases 3 are connected by a connecting member 22 so that the seedling mounting base 3 reciprocates left and right.

Reference numeral 23 denotes a rotating arm, which is fixed to a shaft that protrudes and rotates to the outside of the left and right sides of the main planting portion mission case 1a and is fixed to the actuating lever 15b when the seedling table 3 reaches the lateral end. The lever 15b is engaged and rotated in the direction of arrow D. Reference numeral 24 denotes an actuator, as shown in FIG. 3, which is rotatably fixed at its base side to a micro switch 25 fixedly interposed between the left and right ribs 7, 7 of the strip bottom portion 4e. It projects from the provided bottom hole 26. And the micro switch 25
Is turned off when the actuator 24 is pressed by the lower surface of the seedbed placed in the seedling tank 3a, and turned on when it is not pressed, and an alarm device appropriately warns this.

In the figure, reference numeral 27 is a central leveling float, 2
Reference numerals 8 and 29 denote side leveling floats. Next, the operation of the above example will be described. After the mat seedlings (pot-shaped soiled plate seedlings are acceptable) are placed and stored in each seedling tank 3a of the seedling mounting table 3, the main planting part mission case 1a of the towing vehicle (not shown) side is placed. When the ground leveling floats 27, 28, 29 are towed while being grounded to the soil surface while transmitting power to the input shaft, the seedling placing table 3 is moved by the horizontal reciprocating lateral moving mechanism 18 via the moving rod 21 and the connecting body 22. The left and right sides of the mat seedling are laterally moved laterally, and the lower end side of the mat seedling placed and accommodated is slidably laterally moved while being received by the seedling receiving plate 13, and is successively fed to the seedling dividing port 14. At this time, the separating claw portion of the seedling planting device 2 intervenes from above into this seedling dividing port 14 and separates and engages the seedlings one by one, one by one, and planting them on the soil surface below.

Then, when the seedling placing table 3 reaches the folded position of the lateral movement end, the operating lever 15b engages 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 through the ratchet mechanism 15, the drive roller 10a is rotated, and the seedling feeding belts 11 ... Are simultaneously rotated by a predetermined amount, and the mat seedlings placed on the seedling feeding belts 11 ... It is sent down.

In this way, when the seedling placing table 3 reaches the lateral movement end, the vertical feed is always added, and the earthed plate-like seedlings to be placed properly are delivered to the seedling dividing port 14. In this case, since the seedling feeding belt 11 is stretched on the left and right sides of the bottom plate portion of the seedling tank 3a, leaving a narrow strip bottom portion 4e at the middle portion between the left and right sides, the back surface of the seedling bottom is almost entirely covered. Seedling feeding belt 1
With 1, the vertical feed is applied and it is sent reliably.

During the seedling planting work, the seedling feeding belt 1
Since No. 1 is driven by the lower drive roller 10a, the upper surface for feeding the mat seedlings becomes the tension side and the flat surface is maintained, and the center portion does not sag down, and the feeding of seedlings is stable. Also,
The driving roller 10a and the floating roller 10b are attached to the seedling placing table 3 from below after the seedling feeding belt 11 is wound around, so that the workability is significantly improved.

[Brief description of drawings]

[Figure 1] Side view of the main part of the seedling planting machine

2 is a cross-sectional view of the main part of FIG.

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 the main part

FIG. 6 is a bottom view of the main part

[Figure 7] Slope view of the main part

[Figure 8] Slope view of the main part

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

[Explanation of symbols]

3 seedling mounting table 4 bottom plate 4d hole 8 support frame 8b guide part 9a drive shaft 9b driven shaft 10a drive roller 10b idle roller 11 seedling feed belt 12 spring

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Bibliography Sho 56-30726 (JP, U) Rikai 57-169745 (JP, U) Rikai 52-77186 (JP, U) Shoko 47- 28123 (JP, Y1)

Claims (1)

[Claims] 1. A hole 4d is provided in a bottom plate 4 of a seedling table 3 which is supported by a machine body and reciprocates left and right, and a driving roller 10a and a floating roller 10b are provided below and above the hole 4d. In the seedling feeding device of the seedling planting machine provided around the seedling feeding belt 11 that receives and transfers the seedlings to the backside of the seedling mounting table 3.
An upper floating roller 10b is provided on the fixed supporting frame 8.
Notched groove-shaped guide portion for engaging and disengaging the driven shaft 9b
8b is provided, and the driven shaft 9b is engaged and guided by the guide portion 8b.
A seedling feeding device for a seedling planting machine, which is mounted in a state of being biased upward by a spring 12 .