JP3479115B2 - Transplanter seedling tray feeder - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling tray supply device for a transplanter for replenishing seedling trays on a seedling table having a tray transport chain on both sides. 2. Description of the Related Art Conventionally, on both sides of a seedling table on which a seedling tray is placed, a transfer pin which can be inserted between pot portions adjacent to each other in the vertical feeding direction of the seedling tray is provided inward. In a transplanting machine equipped with a seedling supply device configured by arranging two tray transfer chains for vertical feeding in parallel to each other, a transfer pin at the upper rear side in the vertical feeding direction of both tray transfer chains has a seedling mounting table. Both tray transport chains are intermittently driven to rotate so as to move forward in the vertical feed direction as they are in the upper direction from the supply side base surface. [0003] Therefore, when the seedling tray is supplied on the supply side table surface of the seedling mounting table, it is necessary to insert both side portions of the front portion of the seedling tray into the transfer pins on both sides. Since the seedling tray has to be dropped while being lifted, the supply operation is troublesome and difficult.In addition, the seedling tray to be replenished should be supplied with the front end of the seedling tray to be supplied close to the rear end. It is also difficult, and replenishment mistakes are apt to occur, resulting in a lack of planting during planting. The present invention solves such a problem as a problem and makes it possible to supply the seedling tray accurately and easily. Therefore, the seedling tray A is placed on the tray. Pins 2a and 2b which can be inserted between pot portions a adjacent to each other in the vertical feeding direction of the seedling tray A on both sides of the seedling mounting table 1
Seedling supply B which comprises two tray transport chains 3a, 3b for vertical feeding, each of which projects inwardly, and which are arranged in parallel.
In the transplanting machine equipped with the above, the upper portions of the tray transport chains 3a, 3b, which are the supply side of the seedling tray A, on the rear side in the vertical feeding direction are supported by the two chain support rods 4a, 4b which can be moved up and down from below, while both chains are supported. Above the support rods 4a, 4b.
Above the chain pins 19 of the tray transport chains 3a and 3b
Chain holders extended in the chain direction so that they can contact
The rear ends of the rods 5a and 5b are pivotally connected to the rear fulcrum shaft 20, respectively.
Support and pull both chain holding rods 5a and 5b.
The springs 21 and 21 are configured to be elastically urged downward, and the lower portions of the two chain support rods 4a and 4b move the upper portions of the tray transport chains 3a and 3b on the rear side in the vertical feeding direction to the respective transfer pins 2.
The posture change can be adjusted so that a and 2b are lowered below the supply side table surface of the seedling mounting table 1. [0005] Therefore, when replenishing the seedling tray seedling mounting table,
By lowering both chain support rods, it is possible to lower the upper rear side in the vertical feeding direction of both tray transport chains so that the respective transfer pins are lowered below the supply side base surface of the seedling mounting table. Is placed on the supply side surface of the seedling table, slide it as it approaches the rear end of the seedling tray where seedlings are being picked up, and then move both chain support rods up from that state. Each transfer pin is inserted between the pot portions of the replenished seedling tray while moving the upper part of the transport chain rearward in the vertical feeding direction upward, so that seedlings can be accurately and easily prevented from being replenished. Tray can be replenished. FIG. 2 and FIG. 3 are a side view and a plan view schematically showing an implanting machine.
Also equipped with a rear wheel 7b, an engine 8, both spare seedling mounts 9 and the like, and a handle 10 extending rearward, a pressure-reducing roller 11 between both front wheels 7a, and an up and down movement between both rear wheels 7b. The planting claws 12 are provided with both cultivation rings 13 behind the planting claws 12, and the seedling tray A is intermittently moved in the vertical and horizontal directions in front of the handle 10. A seedling supply device B capable of sending A from the lower side to the rear by the guide 14 is provided. Above the front part of the seedling supply device B, the seedling picking claw 15 grasps the potted seedling of the seedling tray A and rises. It is configured in the same manner as the conventional structure so that it can be supplied to the planting claws 12. The seedling supply device B can be inserted between the pot portions a adjacent to each other in the vertical feeding direction on both sides of the seedling tray A on both sides of the inclined seedling table 1 on which the seedling tray A is placed. Two tray transport chains 3a, 3b for vertical feeding, in which feed pins 2a, 2b protrude inward, respectively, are arranged in parallel, and the configuration is almost the same as the conventional structure.
b, the front two sprockets 16 have a large diameter so that the outer circumference is higher than the seedling mounting table 1.
The fulcrum shafts 1 each having a small diameter so that the outer circumference is lower than the seedling mounting table 1,
8, the two chain support rods 4a, 4b, whose rear ends are pivotally supported, respectively, are brought into contact with the lower part of the chain pin 19, which is the rear side of the tray transport chains 3a, 3b, which is the supply side of the seedling tray A, in the vertical feeding direction. It extends in the direction of the chain from the middle so that it touches,
The rear ends of both chain holding rods 5a, 5b extending in the chain direction so as to be able to contact above the chain pins 19 of the tray transport chains 3a, 3b above the both chain supporting rods 4a, 4b are connected to the rear fulcrum shaft 20. To each other,
Both chain holding rods 5a and 5b are configured to be elastically urged downward by tension springs 21 and 21, respectively. The bearings 22 on both sides are provided below the seedling mounting table 1.
On both sides of the operation rod 6 which is supported by the shafts a and 22b, crank portions 6a and 6b which can respectively contact the lower surfaces of the two chain support rods 4a and 4b are formed. At both ends, levers 23a, 23b are provided, and while the crank portions 6a, 6b are rotated by the rotation of the levers 23a, 23b, the transfer pins 2a, 2b of both chains are connected to the seedling mounting table 1.
The two chain support rods 4a and 4b are configured to be vertically movable so that the vertical position of the base surface can be changed.
The two levers 23a, 23b are connected to a tension spring so that they can be operated beyond the fulcrum, or both levers 23a, 23b can be operated.
May be operated in conjunction with the planting clutch operation of the machine, or as shown in FIG.
The two levers 23a and 23b can be rotated by a tray detection sensor 24 that can detect the trailing end of the lever. As shown in FIGS. 1, 4 to 6, on both sides of the supply side of the seedling supply device B, there are two tray holding rods 25, which can contact the upper surface of the seedling tray A to hold the tray.
25 are installed on both sides, and both tray holding rods 25, 25
Are bent upward and extended to the front end side of the supply side table surface of the seedling mounting table 1. Therefore, as shown in FIGS. 1, 4 and 5, the seedling tray A is fed vertically and a new seedling tray A
When supplying one of the levers 23a and 23b from the easy operation side in the direction of the arrow A when replenishing the seedling mounting table 1, as shown in FIG. 4a and 4b are moved down, and the elastic force of both chain pressing rods 5a and 5b causes the upper portions of the tray transport chains 3a and 3b on the rear side in the vertical feeding direction to be connected to the respective transfer pins 2a.
Thus, the seedling tray A can be placed on the supply side table surface of the seedling table 1 without hitting the transfer pins 2a, 2b. And then slide it in the direction of arrow B until it approaches the rear end of the seedling tray A where the seedlings are being picked up. From this state, rotate the levers 23a and 23b in the opposite direction and rotate the cranks 6a and 6b. With both chain support rod 4
4 and 5, the upper portions of the tray transport chains 3a and 3b on the rear side in the vertical feed direction are moved upward, and the respective transfer pins 2a and 2b at the corresponding portions are moved to the seedlings. The seedling tray A is inserted between the adjacent pot portions a of the tray A, so that the seedling tray A can be accurately and easily replenished so that a replenishment error does not occur. When the levers 23a and 23b are connected to a tension spring so that they can be operated beyond the fulcrum,
When the levers 23a and 23b can be operated accurately and smoothly, and both levers 23a and 23b are operated in conjunction with the planting clutch operation of the machine, the planting clutch operates when the seedling tray is replenished. Then, the levers 23a and 23b are automatically operated, and
When both levers 23a and 23b are configured to be rotated by the tray detection sensor 24, the levers 23a and 23b can be automatically rotated accurately at the time of replenishment of the seedling tray. As described above, according to the present invention, when replenishing the seedling tray A to the seedling mounting table 1, when the two chain support rods 4a, 4b are moved downward, the vertical movement of both tray transport chains 3a, 3b is achieved. In the upper part on the rear side in the feeding direction, the respective transfer pins 2a, 2b are lowered below the supply side table surface of the seedling mounting table 1, and both chains are supported.
Tray transport chains 3a, 3b above the rods 4a, 4b
In the chain direction so that it can contact above the chain pin 19
The tension springs 2 are also used for the extended chain holding rods 5a and 5b.
Since the seedling tray A is urged downward by 1, 21 and lowered, the seedling tray A is placed on the supply table surface of the seedling mounting table 1 and the end of the preceding seedling tray A is slid so as to approach. Thereafter, by moving both chain support rods 4a, 4b upward, the respective transfer pins 2a, 2b are moved upward while the upper portions of the tray transport chains 3a, 3b on the rear side in the vertical feed direction are moved upward.
Can be set so as to be inserted between the pot portions a of the replenished seedling tray A, so that the seedling tray can be replenished accurately and easily so that replenishment mistakes do not occur in the seedling supply device B. The present invention has a feature that a transplanting machine capable of transplanting a potted seedling that does not cause a lack of stock by further improving the restocking operation of the seedling can be suitably implemented.

[Brief description of the drawings] FIG. 1 is a plan view showing a main part of an embodiment of the present invention. FIG. 2 is a side view schematically showing the transplanter. FIG. 3 is a plan view schematically showing the transplanter. FIG. 4 is a side view schematically showing a main part. FIG. 5 is a side sectional view schematically showing a main part. FIG. 6 is an operation explanatory view showing an operation state of FIG. 4; [Explanation of symbols] A Seedling tray 1 Seedling stand a Pot section 2a Transfer pin 2b Transfer pin 3a Tray transport chain 3b Tray transport chain 4a Chain support rod 4b Chain support rod

Claims (1)

(57) [Claim 1] On both sides of a seedling mounting table 1 on which a seedling tray A is placed, a member which can be inserted between pot portions a adjacent to each other in the vertical feeding direction of the seedling tray A. In a transplanter equipped with a seedling supply device B, which is configured by arranging in parallel two tray transport chains 3a, 3b for vertical feeding in which feed pins 2a, 2b protrude inward, respectively, the supply side of the seedling tray A Tray transport chain 3
a, both chain supporting rod 4a of vertically movable vertical feeding direction rear side upper portion of 3b from below, while supported by 4b, both Ji
Tray transport chain 3 above the chain support rods 4a, 4b
a, 3b so that they can be contacted above the chain pin 19.
Rear ends of both chain holding rods 5a, 5b extending in the
To the rear fulcrum shaft 20 respectively.
The holding rods 5a, 5b are extended by tension springs 21, 21.
The two chain support rods 4a, 4
b, the upper part on the rear side in the vertical feeding direction of both tray transport chains 3a, 3b can be adjusted so that the respective transfer pins 2a, 2b can be lowered below the supply side surface of the seedling mounting table 1. A seedling tray supply device characterized by the above-mentioned.