JPH0543321B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic seedling box feeding device for a seeding machine, and more specifically, to a seedling box transfer device for placing and transferring seedling boxes. The present invention relates to a device for feeding an empty seedling box to the starting end of a seedling box transfer device of a seeding machine having a feeding device, a seeding device, a soil covering device, and an irrigation device.

In conventional devices of this kind, if you stack a large number of seedling boxes, the lowest seedling box will automatically be fed one by one to the seedling box transfer device of the seeding machine, but the seedling boxes are If more than a certain number of seedling boxes are stacked, the stacking load will deform or damage the seedling boxes at the bottom, so it is not possible to supply more than a certain number of seedling boxes at once, and as a result, it takes time and effort to supply seedling boxes. There were too many flaws. This invention aims to eliminate the drawbacks of the above-mentioned conventional devices.

In order to achieve this objective, the present invention provides one empty seedling box that is supplied in a stacked state to the front end side of the seeding platform 4, which is equipped with a seedling box transfer device that transfers the seedling box a from the front side to the rear side. An air seedling box separation and feeding device 6 is provided to feed seedling boxes individually to the transfer device, and on the rear seeding table of the air seedling box separation and feeding device 6, there is a bed soil feeding device 7, a seeding device 8, a soil covering device 9, and an irrigation device. A device 10 is provided, and on the upper part of the air seedling box separation and supply device 6,
A stacked air seedling box group supply device 19 that hangs and holds stacked air seedling box groups A at predetermined intervals and sequentially supplies one stacked air seedling box group A to the air seedling box separation and supply device 6. a detector 35 for detecting that the number of air-raised seedling boxes a of the stacked air-raised seedling box group A being supplied to the air-raised seedling box separation and supply device 6 has fallen below a certain number;
is provided, and the stacked air seedling box group supply device 19 is operated by the detection signal of the detector 35, thereby forming an automatic seedling box feeding device for a seeding machine.

One embodiment of the present invention will be described in detail based on the drawings. 1 is a seeding machine, in which a seedling box a is placed on a seeding table 4 having a pair of left and right frames 3, 3 supported by legs 2, 2... Endless belts 5, 5 are provided for transferring the seedling box from the front side A to the rear side B, and an empty seedling box separating and feeding device 6 is provided on the starting side of the belt, and behind this is a bed soil feeding device sequentially from the front side. 7. A seeding device 8, a soil covering device 9, and a watering device 10 are provided so that bed soil, sowing, covering, and watering are automatically performed while the seedling raising box a is being transported.

The air seedling box separation and supply device 6 is attached to the starting end side of the seeding table 4 so that a pair of left and right spiral coils 11, 11 are rotated by a motor _M1 , and a seedling box a is attached to the rear outside of the coils 11, 11. Holding punches 12, 12 are provided to prevent horizontal vibration of the seedling box for regulating both left and right sides, and a rear part of the holding punches 12, 12 is prevented by a plate 13 for preventing the seedling box from slipping out. A passage hole 14 is bored through which the seedling box can pass. In the figure, 15, 16 propeller rockets, 17, 1
8 is a coil drive shaft.

Reference numeral 19 denotes a stacked air seedling box group supply device, which includes chains 20, 20 that hang vertically at two locations, front and back, on the outer sides of the holding punches 12, 12, respectively, and are transmitted and rotated simultaneously at the same speed by a motor _M2 . ... are provided, and support plates 21, 21, which receive the right and left outer sides of the rear surface of the seedling box a, are installed in each of the chains 20, 20 so that they do not bend under loads from above and below, but can escape upwards under loads from below. They are arranged at predetermined intervals in the moving direction of the chain, and on these supporting plates 21, 21, about 20 seedling raising boxes group A are supported horizontally and are provided so that they can be lowered.

22, 23, 24, 25 are the chains 20, 2
The upper shafts 22 and 23 of these shafts are interlocked by separate chains 26, and the shaft 22 is connected to the motor.
It is configured to be driven and rotated by _M2 .

Further, the transmission rotating shafts 22 and 23 on the upper side of the chains 20 and 20 are installed on a support frame 28 attached to the second floor 27, and the stacked air seedling box group supply device 19
It is constructed by penetrating a part of the second floor 27.

29 is an air seedling box transport device, which is located on the 2nd floor, 27
Group A of air-grown seedling boxes, which are placed on top and are loaded with approximately 20 seedling boxes each.
is carried to the upper side of the stacked air seedling box group feeding device 19. _M3 is a motor that operates the empty seedling box transport device 29.

Reference numeral 30 denotes a delivery device for the seedling box group A, in which a pushing plate 34 is attached to the tip of a piston 33 attached to a rack 32 that meshes with a pinion 31 that is transmitted and rotated by a motor _M4 capable of forward and reverse rotation. The seedling raising box group A transported by the transporting device 29 is delivered to the stacked air seedling growing box group supplying device 19.

Each of the motors is controlled by the electric control circuit shown in FIG.
The structure is such that _M1 to _M4 are operated while maintaining a predetermined relationship, and each switch in this electric control circuit is installed in the next section.

The switch SW ₁ is located on the terminal side of the air seedling box conveying device 29, and thereby the air seedling box group A is transferred to the delivery device 3.
When the delivery position is reached at 0, this is detected and the rotation of the motor M ₃ is stopped, and the motor M ₄ of the delivery device 30 is rotated forward to start delivery.

The switch SW ₂ is a switch that detects when the piston 33 is extended and the delivery is completed. Based on this detection, the motor M ₄ is reversely rotated and the piston 33 is returned to its original position. The switch SW ₃ is configured to detect the return and stop the reverse rotation of the motor M ₄ .

Switch SW ₄ is a switch that detects when the support plate 21 has reached a height that can receive the aerial seedling box group A.
The motor _M2 is configured to be stopped upon this detection.

The switch SW ₅ is the air seedling box separation and feeding device 6.
This switch is an example of a detector 35 that detects when the number of empty seedling boxes a supplied above has gradually decreased to about 3 to 4.
While it is ON, motor _M3 does not rotate, and
It is configured so that it rotates when there are 4 pieces and it is turned off.

The switches SW ₆ and SW ₇ are switches that control the rotation of the motor M ₁ , and when either one is ON, that is, when the seedling box a is placed on the starting end of the endless belt 5, the motor It is provided to operate when the rotation of M ₁ is stopped and the air seedling box separation and supply device 6 is not operated, and both switches SW ₆ and SW ₇ are turned OFF.

In addition, symbols R ₁ to R ₆ and MS ₁ to MS ₅ in FIG. 8 indicate electromagnetic switches, and R ₁ to R ₆ and MS ₁ to _{MS 5} indicate contacts opened and closed by the electromagnetic switches.

Next, to explain the operation of the above example, first, when the seeding machine 1 is operated appropriately in the conditions shown in FIGS. 1 to 3, as shown by the imaginary line in FIG. In the device 6, the seedling growing boxes a are separated one by one by the spiral coils 11, 11 and dropped onto the endless belt 5, and the seedling growing boxes a are sent out from the passage port 14. Then, the bed soil is supplied into the seedling box a every 8 minutes by the bed soil supply device 7, and then seeds are sown on the top surface by the seeding device 8, and then covered with soil by the soil covering device 9, and then placed in the irrigation device 10. It is irrigated and taken out.

While the seeding machine 1 is in operation, a switch attached to the lower side of the empty seedling box separation and feeding device 6 is activated.
While either SW ₆ or SW ₇ detects that the seedling box 6 is on the endless belt 5 and is turned on,
The solenoid of electromagnetic switch R ₆ is energized,
Since the close contact R ₆ is opened, the switch MS ₅ does not work, and therefore the motor M ₁ does not rotate, and the air seedling box separation and supply device 6 is in a stopped state, and the spiral coils 11, 11 do not rotate. Because of this, the seedling box a is not fed out onto the endless belt 5. Then, the seedling box a is sent to the bed soil supply device 7 side, and the switch SW ₆ and
When SW ₇ turns OFF, switch MS ₅ operates and contact MS ₅
When the motor _M1 is opened, the motor M1 is rotated, and the spiral coils 11, 11 are rotated to separate and feed the empty seedling box 6.
The lowermost seedling growing box a of the group A of seedling growing boxes stacked in the holding pestles 12, 12 is delivered onto the endless belt 5.

In this way, the seedling boxes a are fed out one after another and are automatically sent to the seedling box transfer device of the seeding machine 1 and sown, but the number of seedling boxes a of the empty seedling box separation and supply device 6 decreases and the remaining ones are left, for example. When there are three pieces, switch SW ₅ as detector 35 detects this.
Switched to OFF. Then, the switch _R5 becomes de-energized, so the close contact _R5 remains open.

At this time, when the air-growing seedling box group A is placed on the support plate 21 of the air-growing seedling box group supplying device 19, the switch SW ₄ is in the OFF state, so the close contact R ₄ is closed, and the open/close switch is closed. The device MS ₂ works and the contacts
MS ₂ is closed and motor M ₂ is rotated. Therefore, the chains 20, 20... rotate and the support plates 21,
The air-grown seedling box group A supported by 21... is lowered, and one air-grown seedling box group A is supplied to the air-grown seedling box separation and supply device 6.

Then, when the support plates 21, 21 move to the receiving position on the side of the delivery device 30, they are switched to
SW ₄ detects, opens close contact R ₄ , de-energizes the solenoid of switch MS ₂ and motor M ₂
, the rotation of chains 20, 20, etc. is stopped, and air nursery box group A is maintained.

At this time, on the air seedling box conveying device 29 on the second floor 27, the first air seedling box group A is transferred to the delivery device 30.
When switch SW ₁ detects that the signal is being sent to the position, switch R ₁ operates to open and close close contact R ₁ and open contact R ₁ , respectively, and operate switch MS ₃ . Rotate motor _M4 forward,
The piston 33 is projected and the pushing plate 34 is used to deliver the air seedling box group A to the loaded air seedling box group supply device 19.

Then, when the delivery is completed, Switch SW ₃
Motor _M4 returns to reverse and then stops.

In this way, the air-grown seedling box group A is automatically
is provided to the empty seedling box separation and supply device 6.

Therefore, in the case of the embodiment, the operator only has to manage the air-grown seedling box group A so that the air-grown seedling box group A does not disappear on the air-grown seedling box transport device 29.

Further, the air seedling box transport device 29, the delivery device 30, etc. are not particularly necessary, and the point is that if a plurality of air seedling box groups A are supplied in advance to the stacked air seedling box group supplying device 19 at predetermined intervals. , it can be automatically fed for a long time without deforming or damaging the seedling box.

As described above, since this invention has the above-mentioned configuration, the seedling boxes are automatically transferred to the air seedling box separating and feeding device of the seeding machine for a long period of time without stacking so many that the lower air growing boxes are deformed or damaged. It has the effect of supplying energy and improving work efficiency.

In addition, if only the motor M ₂ is made reversible and can be operated using a special switch, the air-grown seedling box after seedling raising can be lifted to the second floor 27 using the loaded air-grown seedling box group supply device 19, which is convenient. .

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a front view, Fig. 3 is a simplified plan view, Fig. 4 is a side view of main parts, and Fig. 5 is a side view of the main parts. 6 and 7 are front views of the main parts, and FIG. 8 is an electric circuit diagram. Symbols in the figure: 1 is a seeding machine, 4 is a seeding table, 6 is an air seedling box separation feeding device, 7 is a bed soil feeding device, 8 is a seeding device, 9 is a soil covering device, 10 is an irrigation device, 19 is an air seedling group The supply device, 35 is a detector, A is a group of loaded air seedling growing boxes, and a is a seedling growing box.

Claims (1)

[Claims] 1. Feeding empty seedling boxes one by one, which are stacked on the front end of the seeding platform 4, which has a seedling box transfer device that transfers the seedling boxes a from the front side toward the rear side, to the seedling box transfer device. An air seedling box separation supply device 6 is provided,
A bed soil supply device 7, a seeding device 8, a soil covering device 9, and an irrigation device 10 are provided on the rear seeding table of the aerial seedling box separation and supply device 6.
The stacked air seedling box group A is suspended and held at a predetermined interval on the upper part of the air seedling box separating and feeding device 6.
A stacked air-grown seedling box group supplying device 19 is provided which sequentially supplies one stacked air-grown seedling box group A to the air-grown seedling box group A, and the air-grown seedling boxes a of the stacked air-grown seedling box group A being supplied to the air-grown seedling box separation and feeding device 6 are provided. This automatic seedling box supply device for a seeding machine is provided with a detector 35 for detecting that the number of boxes has fallen below a certain number, and a stacked empty seedling box group supply device 19 is actuated by a detection signal from the detector 35.