JP2509740Y2 - Seedling tray supply device in transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a seedling tray replenishing device for a transplanter, and more particularly to a seedling tray replenishing device for a transplanter equipped with a tray conveying device for conveying a seedling tray.

(Prior Art) Conventionally, in a transplanter equipped with a tray transporting device for transporting seedling trays, a seedling tray spare seedling mounting table is provided on the side of the tray transporting device, and the tray transporting device transports the seedlings for transplanting work. Before the seedlings in the existing seedling trays are exhausted, the seedling trays on the preliminary seedling tray are artificially placed on the tray transport device to replenish the seedling trays.

(Problems to be solved by the invention) Therefore, during the transplanting work, the operator needs to manage how much the pot seedlings of the seedling tray placed on the tray transport device have been transplanted, and in order to replenish the seeds. The operation of the transplanting machine is temporarily stopped, the transplanting work is interrupted, a new seedling tray containing seedlings is artificially moved from the spare seedling mounting table, set on the tray transfer device, and the operation is restarted. It is necessary to continue the transplanting work, and since the seedling tray is artificially replenished in the middle of the transplanting work, the replenishment work becomes complicated and not only requires a lot of labor, but also the work efficiency of the transplanting work is improved. It was a great obstacle. Also, if the seedling tray supply to the tray transfer device is delayed,
Since the transplanter runs while operating in the air, it will create a seedling lacking site in the field, and in order to avoid this, the worker needs to be attentive and strong to the worker. It was a nerve fatigue.

The present invention has been devised in view of the above problems, and its purpose is to automatically replenish the seedling tray to the tray transporting device that transports the seedling tray, thereby making it difficult to perform conventional replenishment work. Labor can be omitted, and moreover, transplanting work can be continued even while the seedling tray is being replenished, and while improving work efficiency, seedling tray replenishment in a transplanting machine that does not bother the operator and can be carried out with peace of mind A device is provided.

(Means for Solving the Problem) In order to achieve the above object, the present invention provides a pot seedling transplanting section (14) and a seedling tray (15) containing a plurality of pot seedlings in the transplanting section (14). In a seedling tray replenishing device in a transplanter equipped with a tray transporting device (16) for transporting, a preliminary seedling placing table (25) capable of storing a seedling tray (15) in the transport front part of the tray transporting device (16). ) Is provided, and the support bodies (34) (35) for supporting the seedling tray (15) so that they can fall are provided on the auxiliary seedling table (25) at the support position and the dropping position of the seedling tray (15). In addition to being able to move back and forth, a seedling tray sensor (32) for detecting the absence of the seedling tray (15) is provided in the transport path of the tray transport device (16), and based on the detection result of the sensor (32), The supports (34) (35) are retracted to the drop position, and the seedling tray (15) is replenished to the transfer device (16). And it is characterized in that form as that.

(Operation) With the above configuration, when the seedling tray (15) is not present in the transport path of the tray transport device (16), the seedling tray sensor (32) provided in the transport path causes the seedling tray (15) to The absence of 15) is detected, and the seedling tray (15) to be stored in the preliminary seedling placing table (25) provided at the transport front of the tray transporting device (16) is detected by the detection result. The supporting body (34) to be supported is retracted to the dropping position of the seedling tray (15), the supporting of the seedling tray (15) is released, and the seedling tray (15) is naturally dropped to the transfer device (16). By doing so, the feeding device (16) can be automatically replenished.

(Embodiment) A seedling tray replenishing device in a transplanter of the present invention will be described based on an embodiment of the drawings.

FIG. 1 shows a transplanter equipped with the seedling tray replenishing device of the present invention. The transplanter fixes a mission (3) in which an engine (2) is directly connected to a machine body (1), and the mission ( 3) A pair of left and right chain cases (4) and (5) having a power transmission mechanism (not shown) built therein are swingably supported, and drive wheels () are respectively attached to the free ends of the chain cases (4) and (5). 6) and (7) are provided, and the drive wheels (6) and (7) are interlocked with the mission (3) through the chain cases (4) and (5).

Below the mission (3), the front wheels (1
1) (12) are arranged and these front wheels (11) (1
2) is a pivot (8) provided under the engine (2)
The pair of left and right front wheel arms (9) and (10) swingably supported by the front wheels (11) are rotatably supported by free ends.
When the drive wheels (6) and (7) swing up and down, the (12) is configured to operate in conjunction with the swing. Further, behind the machine body (1), a handle (13) is obliquely fixed rearward at a position offset outward in the width direction of the machine body (1).

On the other hand, the machine body (1) is equipped with a transplanting section (14), and the transplanting section (14) conveys a pot seedling tray (15) to a seedling take-out position by a pair of drive pulleys and driven pulleys. The tray transfer device (16) stretched over and the take-out claw (1) for taking out pot seedlings from the seedling tray (15) containing a plurality of pot seedlings.
7) and a seedling take-out mechanism (18) for operating the take-out claw (17)
And are arranged so that they operate in conjunction with each other. Further, below the take-out claw (17), the take-out claw (1
The pot seedlings picked up in 7) are transplanted (2) in the planting device (19).
A guide / conveying device (21) including a pair of belt conveyors for guiding to (0) is provided.

Then, the transplanter (20) receives the pot seedlings from the guide transporting device (21), and the planting device (1).
The planting operation is performed in accordance with the planting locus of the device (19) by driving 9) to plant the pot seedlings on the soil surface.
The power for driving the planting device (19) is arranged at the rear part of the machine body (1) and is transmitted from the mission (3) via a power transmission shaft (not shown). It is adapted to be interlocked with the device (22).

Therefore, in the embodiment shown in FIG. 1, the spare seedling mounting table (25) for storing the spare seedling tray (33) is provided at the transport front of the tray transport device (16) in the transplanter constructed as described above. )
Is provided.

The auxiliary seedling mounting table (25) has side plates (26) (27) that support the tray transfer device (16) on both side plates (26) (27).
The frames (28) and (29) which are projected upward from (27) and whose top ends are connected to each other are supported in an opposed manner, and the preliminary seedling tray (33) is attached to the frames (28) and (29). A plurality of supports (34) (35) for supporting are provided in a plurality of stages.

Then, the support (34) (35) engages between the convex portion and the convex portion on the back surface of the preliminary seedling tray (33) to regulate the forward and backward movement of the preliminary seedling tray (33). The support bodies (34) (35) formed in this way are formed on the frame members (28) (29) in the width direction in which the frames (28) (29) face each other. It is provided inward and backward freely, and this forward and backward movement is performed by the support (3
4) It is configured to operate via a solenoid (30) attached to the base of (35), and the positions of the support bodies (34) (35) are
A plurality of the preliminary seedling trays (33) are individually arranged in the respective frames (28) (29) in an upward direction at positions where they can be stacked and supported independently.

Further, a solenoid (30) for operating the supports (34) (35) is electrically connected to a seedling tray sensor (32) described later, and the solenoid (30) is detected based on the detection operation of the sensor (32). ), The support bodies (34) (35) are moved back and forth.

On the other hand, the seedling tray sensor (32) for activating the solenoid (30) is provided in the transport path of the tray transport device (16).

Specifically, the tray transfer device (16) is conveyed to the seedling take-out position in the transfer route of the tray transfer device (16) to either one of the left and right side plates (26) (27). The rear end portion of the seedling tray (15) in the transport direction is located at a position away from the falling area of the spare seedling tray (33) supported by the spare seedling mounting table (25), that is, the spare seedling tray (33). At the position where the front end and the rear end of the seedling tray (15) do not overlap, contact the upper surface of the seedling tray (15) being transported and
The seedling tray sensor (32) which is F-operated and is turned ON when in a non-contact state, for example, a limit switch is provided, and the sensor (32) allows the seedling tray (in the transport path of the tray transport device (16) to It is designed to detect the absence of 15).

Then, when the seedling tray sensor (32) is turned on, the solenoid (30) is actuated, and the support (34) supporting the spare seedling tray (33) is moved to the spare seedling tray (33). The auxiliary seedling tray (33) is released, the auxiliary seedling tray (33) is naturally dropped onto the tray transfer device (16), and the auxiliary seedling tray (33) is transferred to the transfer device (16). The tray (15) is replenished, and after the preliminary seedling tray (33) has dropped, the support (34) again advances to the supporting position. At this time, the preliminary seedling tray that has dropped first. The support (35) supporting the next spare seedling tray (33) immediately above the (33) retracts to the drop position of the spare seedling tray (33), and the spare seedling tray (33) ) Is made one step, and is supported by the support body (34) that has advanced to the support position. It has been, seedling tray (15) automatically and continuously forms as it supplied to the tray conveying apparatus by repeating this (16). Then, each solenoid (30) for moving the support (34) (35) forward and backward is operated by a timer (not shown) interposed between the solenoid (30) and the seedling tray sensor (32). It controls the timing.

In addition, (Z) in the figure is a seedling pushing tool made of an elastic material such as a stretchable sponge, and is fitted with a seedling tray (15) which is provided on the carrying surface side of the tray carrying device (16) for supply. The pot seedling accommodation portion of the tray (15) is held by using the change in the circumferential length of the protruding portion of the seedling pushing tool (Z) when the tray transportation device (16) is bent at the transportation end position. When forced, pressure is applied to deform the seedlings in the pot to loosen the tightly housed state inside the tray and facilitate the extraction by the take-out claw (17).

Next, the operation of the embodiment constructed as described above will be described.

The transplanter equipped with the present invention drives the drive wheels (6) and (7) by the output of the engine (2) through the mission (3) to drive itself, while driving the transplanting part (14). The tray transport device (16) transports the seedling tray (15) containing the pot seedlings to the seedling take-out position, and the seedling take-out mechanism (18) operates the take-out claws (17) to move the pot seedlings from the seedling tray (15). Is picked up and put into the guide / conveyance device (21), and is supplied to the transplanter (20) through the conveyance device (21). Then, the transplanter (20) performs a planting operation based on a planting locus by a planting device (19) that is interlocked with the transmission device (22) to plant the pot seedlings on the soil surface.

Therefore, in the present invention, the seedling tray (15) conveyed by the tray conveying device (16) is automatically replenished and continuously conveyed.

That is, the seedling tray (15) which is being transported along the transport path of the tray transport device (16) passes the position of the seedling tray sensor (32) provided on the tray transport path, whereby the seedling tray ( The contact of the seedling tray sensor (32), which was in contact with the upper surface of 15), becomes non-contact, and the sensor (32) detects the absence of the seedling tray (15) and turns ON, and a preliminary seedling is obtained. By operating a solenoid (30) provided along with the support (34) on the mounting table (25) to retract the support (34) to the drop position of the preliminary seedling tray (33), the support ( The support state of the spare seedling tray (33) supported by the (34) is released, the spare seedling tray (33) is naturally dropped, and is automatically replenished to the transport front part of the tray transport device (16). While being continuously transported to the preceding seedling tray (15), the support (34) is again in the support position. Advancing to it to stand so as to support the following preliminary seedling tray (33).

Then, the support (35) for supporting the spare seedling tray (33) immediately above the spare seedling tray (33) replenished to the tray transfer device (16) as described above is the support (35). The support (35) is retracted to the drop position by the operation of the solenoid (30) attached to the auxiliary seedling tray (3).
3) drops and engages with the support body (34) that has advanced to the support position first, and is supported while its front-rear movement is restricted.

By repeating this, a plurality of spare seedling trays (33), which are stored in the upward direction in a layered manner in the preliminary seedling placing table (25), are sequentially arranged from the lowermost layer position to the tray. The carrier device (16) is automatically replenished.

In the present embodiment, the advancing / retreating operation of the supports (34) (35) is performed electrically by using the solenoid (30) provided along with the supports (34) (35). The forward / backward movement of the supports (34) (35) may be performed mechanically by using, for example, a link mechanism or a cam.
Further, in the present embodiment, the preliminary seedling placing table (25) is provided in the front portion of the tray conveying device (16) for conveying.
Provide a seedling stand (not shown) on the side of the
The spare seedling tray (33) may be transferred from the placing table to the preliminary seedling placing table (25) by using a belt, a link mechanism or the like.

In such a case, continuous transplanting work for a longer time becomes possible.

(Effects of the Invention) As described above, the present invention provides the tray transfer device (1
A spare seedling placing table (25) capable of storing the seedling tray (15) is provided at the front part of the conveyance 6), and the seedling tray (15) is supported on the spare seedling placing table (25) so as to be able to fall. Supports (34) (35)
Is provided at a supporting position and a dropping position of the seedling tray (15) so as to freely move back and forth, and a seedling tray sensor (32) for detecting the absence of the seedling tray (15) in the transport path of the tray transport device (16). ) Is provided, the support bodies (34) (35) are retracted to the dropping position based on the detection result of the sensor (32), and the seedling tray (15) is replenished to the transfer device (16). Thus, the seedling tray sensor (32) provided on the transporting path of the tray transporting device (16) reliably detects the absence of the seedling tray (15) on the transporting path, and the preliminary seedling is obtained based on the detection result. Solenoid (3
0) to move the support (34) (35) to the seedling tray (1
Since the seedling tray (15) of the preliminary seedling mounting table (25) is sequentially and naturally dropped by advancing and retracting to the supporting position of 5) and the dropping position, the tray transfer device (16) is automatically replenished. There is no need to temporarily stop the operation to artificially replenish the seedling tray (15) to the tray transfer device (16) as in the conventional case and interrupt the transplanting work. Therefore, the complicated labor for the replenishment is required. It can be omitted and continuous work can be performed, and the work efficiency of the transplanting work can be improved accordingly, and the seedling tray (15) can be provided in the transport path of the tray transport device (16).
It is possible to perform transplant work with peace of mind because it eliminates the need to carelessly overlook the absence of seedlings and idle the transplanter to create a seedling lacking site in the field. It is a thing.

[Brief description of drawings]

FIG. 1 is a side view of a transplanter equipped with the present invention, and FIG. 2 is an enlarged sectional view of a main part. (14) …… Transplanting section (15) …… Seedling tray (16) …… Tray transfer device (25) …… Preliminary seedling tray (32) …… Seedling tray sensor (34) …… Support (35)… ... Support

Claims (1)

(57) [Scope of utility model registration request] 1. A pot seedling transplanting part (14) and the transplanting part (1).
A seedling tray replenishing device in a transplanter, comprising a tray transporting device (16) for transporting seedling trays (15) containing a plurality of pot seedlings in 4), the transporting front part of said tray transporting device (16). Is provided with a spare seedling placing table (25) capable of storing the seedling tray (15), and a support (34) (for supporting the seedling tray (15) so that the seedling tray (15) can be dropped onto the spare seedling placing table (25). 35) is provided at a support position and a dropping position of the seedling tray (15) so as to freely move back and forth, and a seedling tray sensor for detecting the absence of the seedling tray (15) in the transport path of the tray transport device (16). (32) is provided so that the supports (34) and (35) are retracted to the dropping position based on the detection result of the sensor (32), and the seedling tray (15) is replenished to the transfer device (16). A seedling tray replenishing device for a transplanter, which is characterized by being made.