JPH0837833A - Structure for correcting missing plant for vegetable transplanter - Google Patents

Abstract

PURPOSE:To provide a vegetable transplanter capable of automatically avoiding transplanting of pot seedlings in a state of missing plant and carrying out uniform planting operation without requiring exchanging and supplying operation of pot seedlings in a state of missing plate on a seedling tray. CONSTITUTION:In a vegetable transplanter in which a pot seedling for one stock taken out by a seedling extracting pawl is transplanted in a field by a seedling transplanting pawl while laterally and longitudinally transporting a seedling tray placed on a seedling placing stand, a seedling detecting sensor 21 is installed at an upper position of a line of a seedling extracting part on the seedling placing stand 18. Seedling stand end sensors 22 are installed at the right and the left laterally sending end parts of the seedling placing stand. The seedling extracting pawl 19 is provided with a seedling extracting rotary sensor 23 and a laterally sending shaft 38 of the seedling placing stand 18 is furnished with a speed change gear H. The sensors 21/22/23 and the speed change gear H are connected to a controller 4 and the controller 4 is coupled with a memory 15 and a counter 16 to transplant seedlings so as to make the transplanter jump over missing plants.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a vegetable transplanter for receiving pot seedlings for one strain taken out from a seedling tray with a seedling picking nail with a seedling planting nail and planting them in a field. The present invention relates to a configuration for detecting and avoiding planting in a stock absent portion.

[0002]

2. Description of the Related Art Conventionally, a pot seedling for one plant taken out by a seedling take-out claw while automatically horizontally and vertically feeding a seedling tray placed on a seedling table is divided into two openable seedlings. A technique relating to a vegetable transplanter that is planted in a field with a nail is known, and is, for example, the technique described in JP-A-6-38638.

[0003]

However, in the above-mentioned conventional technique, usually, a seedling tray has a pot in which the seedlings are not grown and is in a stock-out state. For example, one seedling tray (2
Around 10 holes), there are about 10 pots out of stock. Since the lateral feeding of the seedling tray is configured to be constant regardless of the absence or absence of pot seedlings, even in a pot in a stockout state, the soil portion is taken out by the seedling take-out nails and the seedling planting nails are taken out. However, the seedlings were not planted in the field, and it was not possible to perform a uniform planting work. For this reason, before the planting work, the pots in the lack of stock were manually replaced with the grown pot seedlings to replenish them, but this is a labor-intensive process and can be handled by small-scale farms. In the case of large-scale farms, it was impossible to manually handle the stockouts. Therefore, the present invention does not need to perform the replacement and replenishment work for the pots in the seedling tray that are out of stock, and can automatically avoid planting the pots in the stockout state and perform uniform planting work. The purpose is to construct a vegetable transplanter that can.

[0004]

[Means for Solving the Problems] As a means for solving the above problems, according to the present invention, a seedling tray placed on a seedling placing table is taken out by a seedling taking-out nail while being fed horizontally and vertically. In a vegetable transplanter for planting pot seedlings for one plant in a field, means for detecting the presence or absence of a pot seedling in a row above the seedling take-out part in the vicinity of the seedling table, means for storing the position, and A means for detecting the end of the seedling mounting table is provided at each of the left and right lateral feeding end portions of the seedling mounting table, and a lateral feeding device for varying the lateral feeding amount of the seedling mounting table is provided, and each is connected to a controller, and the controller is connected to the controller. It is constructed so that if there is a stockout in, it will jump over and plant.

[0005]

With this configuration, when pot seedlings are planted on the upper surface of the ridge in the field, the left and right end positions of the seedling placing table are detected by the means for detecting the seedling placing table, and the number of seedlings taken out is determined. By incrementing the counters one by one with a signal input to the controller from the detecting means and counting as the number of times the seedlings are picked out of the pot seedlings by resetting the counter with a signal from the seedling table detecting means. Detects the position of pot seedlings on the seedling tray that are placed on the seedling placing table, laterally fed, and taken out by the seedling picking claws.
The means for detecting the absence of pot seedlings detects the presence or absence of pot seedlings one row above the seedling take-out position, and the information is combined and processed by the controller to be extracted in the next step. If there is a pot in the pot seedling in the row shown in the row that is out of stock, the number of seedling picking positions from the end is determined and stored in memory, and the information on the stockout state in the next process is used according to that information. At the pot, the lateral feeding device is operated to fast forward the lateral feeding of the seedling mounting table so that it is not planted, and only the grown pot seedling can be planted.

[0006]

EXAMPLES Next, examples of the present invention will be described. FIG.
Is an overall side view of the vegetable transplanter, FIG. 2 is a front view showing a configuration of a seedling supply section, FIG. 3 is a control block diagram showing a configuration of a drive system of the seedling supply section, and FIG. 4 is a drive system of another seedling supply section. 3 is a control block diagram showing the configuration of FIG.

Referring to FIGS. 1 and 2, the overall structure of the vegetable transplanter will be described. An engine E is mounted on the front upper surface of the base frame 5, and a mission case M is disposed on the rear of the base frame 5. Swing cases 7 are vertically swingably supported on both sides of the mission case M, and rear wheels 14 are supported on the rear portions of the left and right swing cases 7. Swing arms 8 are supported on both side surfaces of the front part of the base frame 5 so as to be vertically swingable, and a compression roller 17 for uniformly leveling the upper surface of the ridge U is disposed below the swing arms 8. A front wheel 13 is supported at the rear end of the wheel 8. The power from the engine E is transmitted to the mission case M, and the rear wheels 14 are driven from the mission case M via the swing case 7.

At the rear end of the mission case M, a planted transmission case 9 is pivotally supported, and at the rear end of the planted transmission case 9, there are split openable seedling planting claws 20 and the like. A seedling planting portion C is arranged, and the seedling planting portion C is aligned with the unevenness of the upper surface of the ridge U through a soil soil roller 27 supported by a soil soil arm 26 fixed to the soil transmission case 9. It is configured to be vertically swingable. A chassis frame 10 is arranged behind the mission case M,
On the chassis frame 10, a seedling placing table 18 supported by a seedling placing frame 12 and the like and reciprocating left and right, and a seedling picking nail for taking out one pot of seedling 2 from the seedling tray 1 on the seedling placing table 18 are provided. A seedling supply section D composed of 19 or the like is configured.

In the vicinity of the take-out portion of the pot seedling 2 by the seedling take-out claws 19 below the seedling placing table 18, the pot seedling 2a grown one row above the seedling taking-out position of the seedling tray 1 grows.
Or a seedling detection sensor 21, which is a means for detecting whether the pot 2b is in the stock-out state,
As the seedling detection sensor 21, a photoelectric sensor, an ultrasonic sensor, a contact sensor, or the like can be used.
The left and right lateral feed end portions of the seedling table 18 are provided with seedling table edge sensors 22 and 22 which are means for detecting that the seedling table 18 is located at the left and right ends. A limit switch or the like can be used.

The seedling take-out nail 19 is provided with a seedling take-up rotation sensor 23 which is a means for detecting that the pot seedling 2 for one strain is taken out from the seedling tray 1 and supplied to the seedling-planting nail 20. A single-rotation potentiometer or the like is used as the seedling-taken one-rotation sensor 23, which can be provided on the crankshaft 25 shown in FIG. 3, for example. However, this arrangement position is not particularly limited. The seedling detection sensor 2
1, the left and right seedling stand edge sensors 22 and 22 and the seedling pick-up rotation sensor 23 are connected to the controller 4 shown in FIG.
The memory 15 which is a means for storing the signal input from 23 and the counter 16 which is a means for counting the signal from the single seedling rotation sensor 23 are connected.

Then, the left and right end positions of the seedling table 18 are detected by the seedling table edge sensors 22 and 22, and the counters 16 are incremented one by one in response to a signal input from the seedling pick-up rotation sensor 23 to the controller 4. The number of pot seedlings 2 taken out by the seedling take-out claws 19 is counted, and when both ends are reached, the counter 16 is reset by a signal from the seedling stand edge sensor 22, so that the number of pots from the left and right ends of each lateral feed row is counted. Is counted and the position of the pot seedling 2 being taken out is detected by the seedling take-out nail 19, and the presence or absence of a missing plant in the pot seedling 2 at a position one row above the seedling take-out position is detected by the seedling detection sensor 21. By combining these pieces of information and processing them by the controller 4, if there is a pot 2b in a stock-out state in the pot seedling 2 in the row to be taken out in the next process, From which the seedling take-out position is determined and stored in the memory 15, and the pot 2b in the stock-out state in the next step is fast-forwarded by the lateral feed of the seedling mounting table 18 according to the information and planted. Is configured not to do.

A steering handle 11 is connected to the rear end of the chassis frame 10 to form an operating section S, and the bonnet 29 is located at the upper part of the body in front of the seedling table 18.
And a spare seedling stand 30 is provided on both side surfaces of the hood 29. In addition, a tank T for irrigation is arranged in the front part of the base frame 5, a generator G which is a power source of the electrothermal type multi-film perforating device is arranged in the front side surface, and the planted transmission case 9 is arranged. By arranging the irrigation device interlocking with the seedling planting claw 20 and the multi-film piercing device at the rear end, the irrigation unit A and the piercing unit B which can be vertically swung together with the seedling planting unit C are constructed. It is possible to plant by directly irrigating the pot seedlings 2, or if a mulch film is laid on the ridge U, melt the mulch film to open a planting hole and plant the pot seedling 2 in the hole. You can

Next, referring to FIG. 3, the structure of the drive system for the seedling planting section C and the seedling supplying section D of the vegetable transplanter will be described.
The power of the engine E is output from the output pulley 3 of the output shaft 31.
2 is transmitted to the input shaft 45 to which the input pulley 33 of the transmission case M is fixed, and the rear wheels 14
Is transmitted to the planting transmission case 9 via the planting drive shaft 34 of the mission case M, and moves the seedling planting claw 20 up and down via the planting rotary case 35 and the like. Is configured accordingly. The input shaft 45
The power transmitted to the seedling output pulley 46 is transmitted to the planting clutch case 49 via the continuously variable transmission belt 47, the continuously variable transmission pulley shaft 48, etc., and is planted through the timing cam 50, the operation cam 51, etc. The one-turn clutch 57 on the drive shaft 34 is actuated to drive the seedling planting claw 20 for planting the pot seedling 2 supplied by the seedling removing claw 19 on the upper surface of the ridge U.

The power transmitted to the planted clutch case 49 is transmitted from the planted clutch shaft 52 to the take-out rotary case 37, the crankshaft 25, etc., and the seedling tray 1
It is configured to drive the potted seedlings 2 for one stock from the plant and drive the seedling take-out claws 19 to be supplied to the seedling-planting claws 20.
The seedling push-out pin 28 is driven via the push-out cam 44 of No. 1, and the vertical feed cams 42, 42 and the one-way clutch 4 are used.
It is configured to drive a vertical feed chain 39 that is transmitted to the vertical feed shaft 40 via 3 etc. and vertically feeds the seedling tray 1 at the left and right lateral feed end portions of the seedling mounting table 18, and the horizontal feed switching gear case. The power transmitted to 53 is transmitted to the lateral feed shaft 38 via the transmission device H, and is configured to drive the seedling table 18 laterally laterally.

The seedling push-out pin 28 is configured to push the pot seedling 2 from below the seedling mounting table 18 toward the seedling pickup nail 19 side when the pot seedling 2 is taken out by the seedling pickup nail 19. The speed change device H changes the rotation speed of the lateral feed shaft 38 in order to make the lateral feed amount of the seedling mount 18 variable, for example,
The standard clutch, the double speed, and the triple speed can be switched and changed by the electromagnetic clutch 24. The electromagnetic clutch 24 is connected to the controller 4 and can be controlled by a signal from the controller 4. Further, an alarm device 3 such as a buzzer is connected to the controller 4 so that the operator can be notified when the whole row of seedling take-out positions in the next step is the pot 2b in the stock-out state. There is.

Then, according to the stock-out condition of the pot seedling 2 at the seedling take-out position of the seedling tray 1 stored in the memory 15,
For example, at the place of the grown pot seedling 2a, the lateral feed shaft 38
Seedlings are taken out and planted as standard, and when there is one pot 2b in a stock-out state, the transverse feed shaft 38 is set to double speed,
Fast forward only at the pot 2b to allow it to pass through, and if there are two consecutive pots 2b out of stock, make it triple speed, and fast forward only at the pots 2b and 2b to allow it to pass through. 2b is not taken out and planted. In addition,
The transmission H is configured to be switchable to standard, double speed, and triple speed, but may be switchable in multiple stages such as quadruple speed and quintuple speed, and the transmission device is limited to a gear mesh type. Instead of the one, a belt type continuously variable transmission may be used.

The lateral feed shaft 38 formed by the transmission H is also used.
4, the rotation speed of the lateral feed shaft 38 can be changed by using a stepping motor 54 whose drive amount can be variably adjusted, as shown in FIG.
It is also possible to make the lateral feed amount of the seedling placing table 18 variable so that the pot 2b in the stock absent state can be fast-forwarded to allow it to pass through and take out without planting. Then, the stepping motor 54 is controlled by the controller 4, and the lateral feed sensor 55 is provided on the lateral feed shaft 38,
A vertical feed sensor 56 is provided on the vertical feed cam shaft 41, each of the sensors 55 and 56 is configured as an angle sensor and connected to the controller 4, and the lateral feed drive of the seedling mounting table 18 is performed via the controller 4. Seedling extraction nail 19, seedling extrusion pin 2
8. Even if there is a gap between each drive of the vertical movement of the seedling tray 1 at the left and right end portions of the seedling planting claw 20 and the seedling placing table 18, correct the gap so that each drive can be accurately linked. I have to.

When planting the pot seedlings 2 on the upper surface of the ridge U in the field with the vegetable transplanter configured as described above, the power switch 6 connected to the controller 4 is turned on, and before the start of traveling. The seedling take-out position of the first row of the seedling trays 1 placed on the seedling placing table 18 is located at the seedling detection sensor 21, and the seedlings are laterally fed in an idling state, and the counter 16 counts the number of seedlings taken out and memorizes them. When there is a pot 2b in a stock-out state in 15, the number of the pot seedling 2 to be taken out is stored, the seedling tray 1 is vertically fed, the counter 16 is reset, and the work is started.

The pot seedlings 2 grown in the first row
Only a is supplied to the seedling transplanting nail 20 by driving the seedling extracting nail 19 and the seedling extruding pin 28, and is planted in the ridge U. When the pot seedling 2 is in the stock stall state (2b), the speed is changed according to the situation. The electromagnetic clutch 24 of the device H is operated to fast-forward the lateral movement of the seedling mounting table 18, and the seedling transplanting nails 19 and the seedling extruding pins 28 do not supply the pots 2b to the seedling transplanting nails 20 and the seedlings are passed and planted. At the same time, the presence or absence of stock in the pot seedling 2 at the position one row above in the next step is detected by the seedling detection sensor 21 while counting the number of seedlings taken out by the counter 16 and stored in the memory 15. You can

When the seedling placing table 18 is located at the end of the lateral feed, the seedling tray 1 is fed vertically, a signal is input from the seedling stand end sensor 22 to the controller 4, the counter 16 is reset, and one row above the seedling take-out position. It is possible to detect whether or not the pot seedling 2 is out of stock, and like the previous step, only the pot seedling 2a grown through the controller 4 is planted according to the information from the memory 15 stored in the previous step, and the stock outage state is set. The pot 2b of No. 2 is not planted in the ridge U, and at the same time, it is possible to detect the presence or absence of a stock of the pot seedling 2 at the position one row above in the next step and store it in the memory 15.

Thereafter, the vertical feed chain 39 rotates every time the seedling table 18 is positioned at the end of the horizontal feed, and the seedling tray 1 is rotated.
It is possible to plant only the grown pot seedlings 2a in the ridge U by fast-forwarding to the pot 2b in the lacking state while repeating the process of vertically feeding and the horizontal feeding in the opposite direction.
Further, when all the rows of the seedling tray 1 at the seedling take-out position in the next step are pots 2b in the stock-out state, the alarm device 3 is activated to notify the operator. Further, in that case, the planting traveling may be automatically stopped.
In this way, the plant lack correction mechanism configured to detect and store the pot 2b in the plant lacking state in advance and plant only the grown pot seedling 2a is a single-row planting plant transplant as in this embodiment. In addition to the machine, it can also be used in multi-row vegetable transplanters such as tractor towed type, which makes it suitable for large-scale farms.

[0022]

Since the present invention is constructed as described above,
The following effects are obtained. In other words, by detecting and storing the pots in the stock-out state in advance, and by only being able to plant the pot seedlings that have grown, it is possible to avoid the pots in the stock-out state so that the seedlings are growing. Since only the seedlings can be automatically planted in the field, there is no place where seedlings are not planted in the field, and uniform planting work can be performed. In addition, it is no longer necessary to manually replace the pots in a lack of stock with the grown pot seedlings before planting, which saves labor and ensures sufficient planting accuracy. You can
It can also be used on large-scale farms.

[Brief description of drawings]

FIG. 1 is an overall side view of a vegetable transplanter.

FIG. 2 is a front view showing a configuration of a seedling supply unit.

FIG. 3 is a control block diagram showing a configuration of a drive system of a seedling supply unit.

FIG. 4 is a control block diagram showing a configuration of a drive system of another seedling supply unit.

[Explanation of symbols]

 1 Seedling tray 2 Pot seedling 4 Controller 15 Memory 16 Counter 18 Seedling stand 19 Seedling extraction claw 21 Seedling detection sensor 22 Seedling edge sensor 23 Seedling rotation sensor 24 Electromagnetic clutch H Transmission

Claims (1)

[Claims] 1. A vegetable transplanter for laterally and vertically feeding a seedling tray placed on a seedling placing table in a field to plant a pot seedling for one strain taken out by a seedling taking-out nail, A means for detecting the absence or absence of pot seedlings in a row above the row, a means for storing the position, and a means for detecting the end of the seedling mounting table at each of the left and right lateral feed end portions of the seedling mounting table are provided in the vicinity of the section. Along with this, a lateral feeding device for varying the lateral feeding amount of the seedling placing table is provided, each of which is connected to a controller, and the controller is configured to jump and plant when there is a stock stall. Missing stock correction mechanism of transplanter.