JPS6371024A - Nursery box stacking device - Google Patents

Abstract

PURPOSE:To perform a job accurately, by installing a lift mechanism holding a nursery box fed in succession horizontally and lifting it upward, a crossfeed mechanism delivering this nursery box up to a working position and a conveyor trunk mounting elevator. CONSTITUTION:Nursery box groups 1g conveyed by a feed conveyor 2 in a stage of being stacked go down up to a working position by an elevator unit 3, at which these nursery boxes are taken out piece by piece and conveyed by a feed conveyor 5. The nursery boxes 1 passes through a sowing processing system on the conveyor 5 are lifted up as kept in horizontality intact by a lift mechanism 10 having a second sensor S2 detecting the cross feedable position, and fed to a stacking work position by a crossfeed mechanism 11. A nursery box stacker 7 is provided with seven sensors, and it detects each position of these nursery boxes 1 by each signal out of these sensors in consecutive order, then it stacks them on a conveyor truck 13 automatically.

Description

[Detailed description of the invention] [Fields of use for graduation] The present invention relates to a seedling box stacking device.

[Conventional technology]

Conventionally, the following operations are required to obtain a cloak-like surface for use with a rice transplanter.

In other words, a seedling box with approximately the same dimensions as the mantle-shaped surface is provided with a bed, seed rice is sown, soil is covered, watering is performed, and then,
The seedling boxes treated with these 11 seeds are allowed to germinate under conditions of predetermined humidity and temperature, and are then allowed to grow and become green (references not listed).

[Problem that the invention seeks to solve]

In addition, considering the case where the work from seeding to greening is mechanized and a large amount of processing is performed as mentioned above, a large number of seedling raising boxes are required, so the seedling raising boxes before sowing are stored in a stacked state. A mechanism for stacking seedling boxes after sowing, or a mechanism for stacking seedling boxes after sowing, and keeping the seedling boxes at a specified humidity,
It is expected that a mechanism for stacking seedlings, etc., will be required when carrying out so-called stacking seedling raising in which seedlings germinate under temperature conditions.

Therefore, for example, there is a structure that lifts the seedling boxes in a horizontal position, a structure that sends out the lifted seedling boxes in a horizontal position to the stacking work position, and a structure that transports the seedling boxes that have been sent out in this way to the loading platform of a transport cart. It is also conceivable to configure a mechanism for stacking seedling boxes by using an elevator structure for mounting a speed cart that lowers the seedling boxes by the thickness of each seedling box each time the boxes are stacked. When working with the configured mechanism, if you try to start work with even a small number of seedling boxes remaining in the transport cart,
Not only is it difficult to set the height of the elevator at the start of work, but it is also expected to be difficult to accurately load the next seedling box into the one left on the platform of the transport vehicle.

An object of the present invention is to rationally configure a device for stacking seedling boxes, and also to obtain a structure that allows the device to stack seedling boxes easily.

[Means for solving problems]

The present invention is characterized by a lift mechanism that holds continuously fed seedling boxes in a shelf shape in a substantially horizontal position and lifts them upward, and a lift mechanism that holds the seedling boxes lifted by this lift mechanism in a substantially horizontal position. The seedling boxes sent out by the horizontal feed mechanism and the ladder feed mechanism to the stacking position are sequentially flapped onto the loading platform of the transport cart at the stacking position. 2, the elevator mechanism is equipped with an elevator mechanism for mounting on the transport trolley that moves downward every time a seedling box is stacked on the loading platform of the transport trolley, and the elevator mechanism is mounted on the elevator mechanism with the elevator mechanism lowered to the lower limit. The present invention is provided with a sensor that detects the presence or absence of a seedling growing box on the loading platform of the transport vehicle and outputs an output to the safety device, and its functions and effects are as follows.

[For production]

If the above characteristics are configured as shown in FIGS. 1 and 2, for example, the seedling box (1) that is continuously fed by the transport conveyor (5) will be transported by the support piece (10a) of the lift mechanism (10).
)..., the receiver is stopped and held in a horizontal shelf-like position and lifted upwards, and then the cross-feeding mechanism (
11) to the stacking work position, and the transportation cart (1
3) is sequentially stacked on the loading platform (13a), and after the stacking operation on the loading platform (13a) of the transportation truck (13) is completed, the next transportation truck (13) is moved to the elevator mechanism (14).
When loading it on the loading platform (13) of this transport trolley (13),
If the seedling growing box (1) is present in a), the sensor (S7) detects this and activates the safety device (A).

〔Effect of the invention〕

Therefore, by using a rational configuration of the lift mechanism, horizontal feed mechanism, and elevator mechanism, the seedling growing boxes can be stacked while maintaining them in a substantially horizontal state, and the seedling growing boxes can be stacked on the loading platform of the transport cart at the start of the stacking operation. If such a condition exists, it becomes possible to make it impossible to start work or to make the worker aware of this state, and a configuration has been obtained in which work is less strained.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figure 6, a group of seedling boxes (1g
)..., and an elevator unit (3) that lowers the seedling boxes (1g) suspended from the feed conveyor (2) to the working level.
G, Seedling box group (1) from this elevator unit (3)
A seedling box supply system is formed with a seedling box feeding device (4) that takes out seedling boxes (1) one by one from g) and sends out the seedling box feeding device (4) in the horizontal direction. 1) A transport conveyor (5), an above-the-floor supply device (6) that supplies the seedlings to the seedling box (1), an irrigation device (7) that sprinkles water on the floor, and a sowing device that sows the rice seeds on the floor. (8) and a soil covering device (9) that covers the seedling nursery box (1) with soil after sowing.
A seeding treatment system is formed, and the seedling growing boxes (1) that are continuously fed in by the conveyor (5) are held in a substantially horizontal shelf shape by a number of supporting pieces (10a) and lifted upward. Lift mechanism (1o) and this lift mechanism (10
), the seedling box (1) is lifted upwards by the horizontal feed mechanism (11), which sends it out to the stacking work position in a substantially horizontal state. The seedling growing box (1) is held in a substantially horizontal state at the level at which it is sent out, and after the full width of the seedling growing box (1) reaches above the road of the stacking position in the feeding direction of the seedling growing box (1), the seedling growing box (1) is The opening/closing shelf mechanism (12) that opens on both sides to drop the boxes (1) and the seedling raising boxes (1) from the cross-feeding mechanism (11) are placed on the loading platform (13a) of the transport cart (13) in the stacking work position. Sequentially! ! Place the seedling box (on the loading platform (13a) of the transport cart (13)).
A seedling plant is constructed by providing a seedling box stacking device consisting of an elevator mechanism (14) for mounting on a transport trolley that moves downward each time 1) is stacked.

This seeding plant continuously sends out seedling boxes (1),
In addition, by sowing seeds in this seedling raising box (1) and stacking the seedling raising boxes (1) after sowing, the period until germination is
The seedling growing boxes (1), which are configured to allow stacking of seedlings to be raised, and which are stacked on the loading platform (13a) of the transport trolley (13), are assembled together with the transport trolley (1) into the budding unit I-(
15), where they are allowed to germinate under predetermined humidity and temperature conditions, and then loaded into a seedling nursery shelf (17) for further growth using a seedling nursery box loading device (16). .

Further, the lift mechanism (1o) of the seedling box stacking device has a second
As shown in FIGS. 3 and 3, a large number of the support pieces (10a) are provided on the endless band (10c) wound around the sprockets (10b) disposed in the upper and lower positions, and the endless band (10c) of this structure is ) are arranged one by one at positions sandwiching the conveyor (5), and each supporting piece (10a
) and (10a) are linked to be driven synchronously at the same level, and this lift mechanism (10) is driven by a first electric motor (Ml).

In addition, the lateral feed mechanism (11) of the seedling box stacking device includes a push-out tool comprising a pair of rods (lla) and a contact portion (llb) attached across the ends of (lla), and a plurality of sprockets. (llc) ... endless chain (lid)
.

(lid), and a reciprocating drive mechanism (llf) to which power from a second electric motor (M2) is transmitted via a crank mechanism (lie).

In addition, the opening/closing shelf mechanism (12) of the seedling box stacking device has a pair of shelves that can be opened and closed by swinging around the axis of the horizontal feeding mechanism (11) along the sending direction of the seedling box, as shown in FIGS. 2 and 4. shelf(
12a), (12a) and this shelf (12a).

The link mechanism (12b) that opens and closes (12a) at the same time
), and a crank mechanism (
It consists of a third electric motor (M3) linked via a motor 12c).

Further, the elevator mechanism (14) of the seedling box stacking device includes a lift table (14b) provided to be able to slide vertically with respect to the vertical frame (14a), and a lift table (14b) for vertically moving the lift table (14b). Spiral shaft (i4
c) and a fourth electric motor (M4) that rotates this screw shaft (14c).

The seedling box stacking device is equipped with seven sensors, and uses signals from these sensors to sequentially detect the position of the seedling box (1) sent by the conveyor (5). ) on the loading platform (
13a).

That is, as shown in FIG. 2, the first sensor is located near the end of the conveyor (5) in the feeding direction and detects that the seedling box (1) has been fed into the lift mechanism (10). (Sυ is provided, and when this first sensor (S+) detects feeding of the seedling box (1), the lift mechanism (lO)
is operated upward by a stroke equal to the distance in the direction of one support piece (10a).

As shown in Fig. 5, this first sensor (S,) is biased by a spring (18) in order to come into contact with the seedling box (1) sent by the conveyor (5). It consists of a structural contact piece (19) and a limit switch (20) that is pressed and operated by changing the posture of the contact piece (19).
), the contact piece (19) is bent to form a recess (19a).

Place the seedling box (1) above the lift mechanism (10).
A second sensor C5Z) is provided to detect when the stacking body has been raised to a position where it can be fed out by the cross-feeding mechanism (11), and if the stacking work position side of the transport cart (13) etc. Sensor (S2) is the seedling box 1
) is detected, the transverse feed mechanism (11) is activated.

Place the seedling box (1) near the opening/closing shelf mechanism (12).
A third sensor (S3) is provided to detect the completion of feeding the seedling boxes (1) to the opening/closing shelf mechanism (12) and the number of fallen seedling boxes (1).
), when it is detected that the feeding of the seedling boxes (1) is completed, the opening/closing shelf mechanism (12) is opened and operated, and the elevator mechanism (1
4) is operated downward.

The elevator mechanism (14) includes a lift table (14b
), the fourth sensor (S4) is located at the position that detects the upper limit of the rise of the seedling box (1) relative to the loading platform (13a) of the transport vehicle (13).
lift table (14b) until 30 sheets are stacked.
) is located at the position that detects the lowering of the sensor (S, ).
, a sixth sensor (S6) is provided at a position to detect the lower limit of the lift table (14b), and when the seedling box stacking device is started, the lift table (14b)
is automatically raised to the upper limit, and the fifth sensor (S
, ) is lowered to the position where it detects the lift table (14b), the operation of the traverse feed mechanism (11) is stopped, and the lift table (14b) is lowered to the lower limit.

When the lift table (14b) descends to the lower limit, the transport cart (13) on which 30 seedling boxes (1) are stacked
) from the lift table (14b) and send it to the budding unit (15) as described above,
The empty transport cart (13) is placed on the lift table (14b).
) and resume work.

The seedling box stacking device is also equipped with a safety device (A) so that work cannot be restarted unless the transport cart (13) is mounted on the lift table (14b).

That is, as shown in FIGS. 1 and 2, when the lift cheagle (14b) is lowered to the lower limit and the transport trolley (13) is mounted on the lift table (14b), the transport trolley ( 13) Seedling box (1) on the loading platform (13a)
the seventh position of the proximity sensor structure.
A sensor (S,) is provided, and the safety device (8)
are the four electric motors (M+), (Mri, (
If the seedling raising box (1) is installed on the power supply system that supplies current to M3) and (M4) or is composed of a lace isochi, and there is a seedling growing box (1) on the loading platform (13a) of the transport vehicle (13), the seedling growing box is stacked. Even if the switch (21) to start the device is turned on, the four electric motors (MO, (M□)l)
A safety bag to prevent all of (M3) and (M4) from operating? The relay switch as Z(A) is turned off and activated.

The signals from the seven sensors (S+), (SZ), etc. and the start switch (21) are input to the control device (22), and the signals from the control device (22) are used to control the safety device ( A), and four electric motors (L), (gate 2).

Relay switch (1?) for (Mz), (L,)
1), (R2).

The control system of the seedling box stacking device is configured to control (R3) and (R4).

[Another example]

In addition to the embodiments described above, the present invention provides, for example, as shown in FIG.
) is provided with a seventh sensor (S7) that measures the weight by setting it at a position pressed by the wheels (13b) of the lift table (
Transport trolley (14b) when the transport trolley (13) is mounted on the transport trolley (14b)
The presence or absence of the seedling box (1) may be detected from the weight of the lift table (13).
14b), the wheels (13b) of the transport trolley (13)
An eighth sensor (S,) is provided to detect whether the transport cart (13) is mounted on the lift table (14b) or not, and is set at a position where it is pressed by the lift table (14b).
Transport trolley (13) with 4b) lowered to the lower limit
A seventh sensor (S7) is provided to detect the presence or absence of the seedling growing box (1) on the loading platform (13b), and the mounting of the transport trolley (13) on the lift table (14b) is detected, and The safety device (A) may be configured to allow the operation of the seedling box stacking device only when the absence of the seedling box (1) relative to (13) is detected.

In addition to the structure for preventing the operation of the seedling box stacking device, the safety device may be configured to emit an audio warning, and the sensor may be configured to detect the presence or absence of the seedling box by contact. Also good.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling box stacking device according to the present invention,
Figure 1 is a block circuit diagram showing the control system of the safety device, Figure 2
The figure is a side view schematically showing the structure of the stacking device, FIG. 3 is a front view showing the structure of the lift mechanism, and FIG. 4 is an open/close trWA.
Figure 5 is a front view showing the structure of the mechanism, Figure 5 is a side view showing the structure of the first sensor, Figure 6 is a diagram showing the processing system up to stacking processing, and Figure 7 is the processing system from stacking processing to greening processing. FIG. 8 is a sectional view showing another embodiment of the seventh sensor, and FIG. 9 is a side view showing another embodiment of the seventh sensor. (1)...Seedling box, (10)...Lift mechanism, (11)...Transverse feed mechanism, (13)...
...Transportation trolley, (13a) ... Loading platform of the transporting trolley, (14) ... Elevator mechanism, (8) ... Safety device, (S7). ...Sensor.

Claims (1)

[Scope of Claims] [1] A lift mechanism (10) that holds the continuously fed seedling boxes (1) in a shelf shape in a substantially horizontal position and lifts them upward.
and a transverse feed mechanism (11) that sends out the seedling box (1) lifted by the lift mechanism (10) to a stacking work position in a substantially horizontal position; ) on the loading platform (13a) of the transportation truck (13) in order to sequentially place the seedling boxes (1) on the loading platform (13a) of the transportation truck (13) at the stacking position.
An elevator mechanism (14) for mounting a transport vehicle that operates downward every time a transport vehicle is stacked, and a transport vehicle mounted on the elevator mechanism (14) with the elevator mechanism (14) lowered to the lower limit. The loading platform of the trolley (13) (
13a) A seedling box stacking device that is provided with a sensor (S_7) that detects the presence or absence of the seedling box (1) and outputs an output to the safety device (A). [2] The safety device (A) is configured to cut off the power supply in order to stop the operation of the seedling box stacking device when the sensor (S_7) detects the seedling box (1). The seedling box stacking device according to scope 1. [3] The seedling box stacking device according to claim 1, wherein the safety device (A) is configured to issue an alarm when the sensor (S_7) detects the seedling box (1). .