JPH0450263Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a seedling box stacking device.

[Conventional technology]

Conventionally, the following operations are required to obtain pine-shaped seedlings used for seedling planting with a rice transplanter.

In other words, bed soil is supplied to a seedling box of approximately the same size as the pine-shaped seedlings, seed rice is sown, soil is covered, and water is applied.Then, the seedling box that has been sown in this way is placed at a predetermined humidity and temperature. The seeds are allowed to germinate under these conditions, and then allowed to grow and become green (references not listed).

[Problem that the invention attempts to solve]

Furthermore, since the above-mentioned seeding process has conventionally been carried out almost manually, it is desired to mechanize the work from seeding to greening and perform a large amount of processing.

Now, let's consider a case in which a device is automatically operated to stack a predetermined number of seedling boxes after sowing, or to stack a predetermined number of empty seedling boxes to store them. In this case, feeding the seedling boxes as continuously as possible increases work efficiency, but if the operation of the device is set to simply stack the seedling boxes that have been sent in, Every time the number reaches a predetermined number, the operation of the device must be stopped in order to take out the stacked seedling boxes.

The purpose of this invention is to create a seedling box stacking device that can easily stack a predetermined number of seedling boxes without interrupting the continuous supply of seedling boxes and without stopping the operation for stacking. The point lies in the structure.

[Means for solving problems]

The features of this invention are that it is equipped with a support part that receives and supports the seedling raising boxes in a stacked state, and has an endless rotating band that rotates in the vertical direction, and that each time one seedling raising box is sent above the supporting part, By rotating the rotating belt, the supporting part is moved downward by the thickness of the seedling raising box, and when the number of seedling raising boxes stacked and supported by the supporting part reaches the set number, the endless rotating belt is moved downward by the thickness of the seedling raising box. a driving means for moving the support part downward by a predetermined amount by rotation of an endless rotating belt in order to transfer the stacked seedling boxes to a mounting part formed on the support part; The present invention further comprises a braking means for temporarily stopping the rotation of the endless rotating belt just before the supporting part reaches a level at which it is transferred to the resting part, and its functions and effects are as follows.

[Effect]

When the features of the present invention are configured as shown in FIG. 1, for example, the seedling raising boxes 1 sent out to the stacking work position by the transverse feed mechanism 4 are transferred to the supporting part of the endless rotating band 6b via the opening/closing shelf mechanism 5. The seedling growing boxes 1 in the stacked state are stacked on top of the seedling growing box 1 supported by the support member 6a, and the endless rotating portion 6b rotates after this stacking reaches a predetermined number. This rotation also enables the position of the support portion 6a to be set at a position where a new stacking operation can be started.

In addition, just before the stacked seedling boxes 1 are transferred from the support section 6a to the mounting section T, the endless rotating belt 6
b is temporarily stopped by the operation of the braking means 10, so even if, for example, the endless rotation band 6a is operated at a relatively high speed, the impact applied to the seedling raising boxes 1 can be reduced when transferring seedlings.

[Effect of idea]

Therefore, instead of stacking the seedling boxes directly on the mounting section, by supporting the seedling growing boxes on a stepless rotation belt until a predetermined number of seedling boxes are stacked, for example, the stacked seedling boxes can be stacked from the mounting section. Even if it takes extra time to take out the seedling boxes, the continuous supply of seedling boxes will not be interrupted or the operation for stacking will not be stopped, and even if the boxes are operated at relatively high speeds, there will be no shock to the seedling boxes. A device for stacking seedling boxes that is difficult to feed was obtained.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

FIG. 1 shows a seedling box stacking device that stacks seedling boxes after seeding. Seedling boxes 1 that have been treated with soil supply, seeding, irrigation, and soil covering are stacked by a belt conveyor 2. sent to the device.

As shown in the same figure and FIG. 2, the stacking device is
A pair of endless bands 3b, 3b, which are disposed across the belt conveyor 2 and have a large number of locking pieces 3a for locking seedling boxes, are connected to sprockets 3, respectively.
c, 3c, and an endless belt 4 having protrusions 4a, 4a for sending the seedling box 1 lifted by the lift mechanism 3 in a substantially horizontal direction.
As shown in FIG. 3, a horizontal feeding mechanism 4 formed by winding the seedlings b around sprockets 4c, 4c, and a seedling raising box 1 fed by the horizontal feeding mechanism 4 maintain a horizontal state until they reach the stacking work position, and An opening/closing shelf mechanism 5 consisting of a pair of swinging members 5a, 5a that can be opened on both sides.
A pair of endless rotating bands 6b, 6b each having two supporting parts 6a for receiving seedling boxes 1 dropped and supplied by the opening operation of the opening/closing shelf mechanism 5 are wound around sprockets 6c, 6c, respectively. Stacking support mechanism 6
and a deck 9 that supports a lifter 7 and a transport cart 8 provided on a mounting portion T formed at a lower position sandwiched between these endless rotation bands 6b, 6b, and is supported by the deck 9 during work, Moreover, the seedling growing boxes 1 from the stacking support mechanism 6 are transferred to the transport cart 8 in which an opening 18a through which the lifter 7 is inserted is formed.

In addition, the seedling growing box 1 sent by the belt conveyor 2
A first sensor _S1 is provided to detect when the seedling box 1 has reached a position where it can be lifted by the lifter mechanism 3, and when this first sensor _S1 detects the seedling raising box 1, the lift mechanism 3 is moved to the top and bottom of the locking pieces 3a... The first motor M1 driving the lift mechanism ₃ is actuated to move the lift mechanism 3 upward by equal strokes, and the lift mechanism 3
The seedling box 1 lifted by the horizontal feed mechanism 4
The second one detects that the position where lateral feed is possible has been reached.
A sensor S ₂ is provided, and when this second sensor S ₂ detects the seedling raising box 1, it activates a second motor _M2 that drives the transverse feeding mechanism 4, and the seedling growing box 1 fed by the transverse feeding mechanism 4 is actuated. A third sensor _S3 is provided to detect when the _seedling raising box 1 has reached the stacking work position. Through the operation of the linked third motor _M3 , the opening/closing shelf mechanism 5 is operated to open, and at the same time, the opposing sides of the endless rotating bands 6b, 6b of the stacking support mechanism 6 are moved downward by the thickness of the seedling box 1. In order to move, the stacking support mechanism 6
and a fourth sensor _S4 for detecting that the number of stacked seedling boxes 1 supported by this stacking support mechanism ₆ has reached a predetermined number; A fifth sensor _S5 is provided which detects when the seedling raising box 1 approaches the transport cart 8 by the operation of the mechanism 6, and when the fourth motor _M4 enters the detection state, the fourth motor _M4 is activated. When the seedling growing box 1 is moved downward, the lifter 7 is raised to a predetermined level, and this movement also causes the fifth sensor to rise.
When _S5 enters the detection state, the operation of the fourth motor _M4 is stopped, and at the same time, the brake 10, which is an example of a braking means interposed between the fourth motor _M4 and the stacking support mechanism 6, is temporarily set to the braking state. After that, the brake is released, and the seedling raising box 1 is lowered by the operation of the fourth motor _M4 . As a result of this downward movement, the seedling box 1... is received by the lifter 7, and the lifter 7
It is transferred to the transport trolley 8 by slow descent.

Incidentally, when the transfer is performed in this way, the next support part 6a reaches the upper part of the stacking support mechanism 6 at approximately the same time, making it possible to continue operating the stacking device even when the transport cart 8 is replaced. .

[Another example]

In addition to the embodiments described above, the present invention may be used, for example, to stack empty seedling boxes, and the braking means may have any structure such as a drum type or a disk type.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the seedling box stacking device according to the present invention, FIG. 1 is a side view showing the outline of the structure of the device, FIG. 2 is a front view showing the locking structure of the lift mechanism, and FIG. It is a front view showing the structure of an opening/closing shelf mechanism. DESCRIPTION OF SYMBOLS 1... Seedling raising box, 6a... Support part, 6b... Endless rotating belt, 10... Braking means, _M4 ... Drive means,
T...Placement section.

Claims (1)

[Scope of utility model registration request] An endless rotating band 6b includes a supporting part 6a that receives and supports the seedling raising boxes 1 in a stacked state and rotates in the vertical direction, and an endless rotating belt 6b that rotates each time one seedling raising box 1 is sent above the supporting part 6a. By rotating the moving band 6b, the supporting section 6a is moved downward by the thickness of the seedling growing boxes 1, and when the number of seedling growing boxes 1 supported in a stacked state on the supporting section 6a reaches a set number, an endless cycle is completed. Driving means M ₄ for moving the supporting portion 6a downward by a predetermined amount by rotating the endless rotating band 6b in order to transfer the stacked seedling boxes 1 to the mounting portion T formed below the moving band 6b. and the seedling growing box 1 supported by the support part 6a.
A braking means 10 for temporarily stopping the rotation of the endless rotation band 6b just before the support section 6a reaches a level at which the seedling box is transferred to the mounting section T.