JPS61227714A - Apparatus for stacking seedling growing box - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention involves a series of sowing operations such as placing the seedlings on the bed, sowing, and covering the seedlings with soil. This invention relates to a seedling box stacking device that stacks seeded seedling boxes in a seedling facility that promotes seed germination by controlling humidity and the like.

[Prior art]

As a stacking device for such seedling boxes,
As described in Publication No. 2205, etc., there is a device that sequentially stacks the transported seedling growing boxes on the underside of the seedling growing box, or as described in Publication No. 1978-2678, on the top of the seedling growing box. Various devices have been developed, such as devices that sequentially stack transported seedling boxes.

[Problem that the invention seeks to solve]

In a device that sequentially stacks seedling boxes on the bottom of the seedling box, it is necessary to lift the entire stack of seedling boxes upwards, which leads to an increase in the size of the device, and there is also the problem that the seedling boxes cannot be stacked securely. Ta.

[Means for solving problems]

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a stacking device that has a simple structure and can reliably stack seedling boxes.

The present invention is a seedling box stacking device for stacking seedling boxes that have been sown. and a gripping device for gripping the seedling-raising box lifted by the lifting platform when the gripping device is moved toward and away from the elevator by an air cylinder, and the seedling-raising box gripped by the gripping device is transported to the next section. The present invention is characterized in that the operation of lifting the box by lifting the box using the lifting table, releasing the grip by the gripping device, and stacking the boxes from below is repeated.

〔Example〕

The present invention will be described below based on drawings showing embodiments thereof. FIG. 1 is a plan view showing the arrangement of the stacking device according to the present invention, and 2nd rgJ is an elevational view of the same. In FIG.
A series of seedling raising boxes IO that have been sown, such as covered with soil, are transported in sequence.

Near the starting end of the belt conveyor 11, a starting end of a belt conveyor 12 extending to the − side is connected, and the belt conveyor 12 is bent in the middle so that the terminal end is connected to the belt conveyor 11. is parallel to. A dispensing rod 13 is disposed on the side of the belt conveyor 11 facing the connecting portion at the starting end of the belt conveyor 12. The distribution rod 13 is pivotally supported at the upstream end of the belt conveyor 11, and when the other end is rotated, the distribution rod 13 is moved to a position parallel to the belt conveyor 11 and to a position parallel to the belt conveyor 11.
The belt conveyor 11 is connected to the starting end of the other belt conveyor 12 by blocking the conveyance area of the belt conveyor 11 and connected to the conveyance area of the belt conveyor 12. A stacking device 20.20 according to the invention is installed at the end of each belt conveyor 11.12.

FIG. 3 is a cross-sectional view of the device of the present invention.
It has a pair of chain conveyors 21.21, the start end of which is connected to the end of the belt conveyor 11 (or 12), and the seedling boxes 10 are transported by both chain conveyors 21.21. be done. Chain conveyor 21. There is a lifting platform 2 between the two at the end of the chain conveyor 21.
2 are arranged. An air cylinder 23 is provided below the lifting table 22 with its piston rod facing upward, and the tip of the piston rod is attached to the center of the lower surface of the lifting table 22, so that the air cylinder 23 does not move in or out of the conveyance area of the chain conveyor 21.21. It is possible. Vertical guide shafts 24, 24 are disposed on the upstream and downstream sides of the air cylinder 23 in the conveyance direction of the chain conveyor 21, 21, respectively, so as to be able to freely slide in the vertical direction. The parts are respectively attached to the lower surface of the lifting platform 22. With this configuration, the elevating table 22 is raised and lowered while maintaining a horizontal state by the advancing and retracting of the piston rod of the air cylinder 23, and is moved out and out of the conveyance area of the chain conveyor 21.21.

Each side of the chain conveyor 21.21 is provided with a guide plate 25. parallel to each chain conveyor 21.21.
25 are respectively erected, and each guide plate 25°25
A support plate 25a is provided between the upstream sides of the support plate 25a, which forms a space below which one seedling box can pass.

Note that a support door that can be opened and closed may be provided on the downstream side of each guide plate 25, 25, and the support door may be opened when the stacked seedling boxes are transported.

At the bottom of each guide plate 25.25 and slightly above the upper surface of the chain conveyor 21.21, a gripping device 26 is provided.
．． 26 are attached respectively. Each of the gripping devices 26 has the same structure, and is opposed to each other across the conveyance area of the chain conveyors 21, 21. Each gripping device W, 2
6, the advancing direction of the rod is the chain conveyor 21.
An air cylinder 26a is disposed at the center of the conveyance area of the air cylinder 21, and a guide shaft 2 is provided on each side of the air cylinder 26a and is slidable in the same direction as the rod advancing and retracting direction.
6b, 26b, the loft end of the air cylinder 26a and the ends of the guide shafts 26b, 26b on the conveying area side, parallel to each chain conveyor 21, and a side-view-shaped clamp with a protruding lower part. Part 26c,
26c, when the rod of the air cylinder 26a advances, the clamp part 26c advances to the chain conveyor 21 side while maintaining a state parallel to each chain conveyor 21, and conversely, when the rod of the air cylinder 26a retreats, the clamp part 26c advances The clamp portion 16c is retracted from the conveyance area of the chain conveyor.

At the end of each chain conveyor 21.21.21.21 in each stacking device 20.20 there is a belt conveyor 3.
The starting ends of belt conveyors 31.31 are arranged in series, and transfer machines 40.40 are respectively arranged at the end ends of each belt conveyor 31.31. Guides 32 and 32 are provided on each side of each belt conveyor 31 to prevent stacked seedling boxes from falling over.
are provided throughout the area. The transfers 40, 40 are arranged facing each other, and between them a pair of chain conveyors 51, 51 are laid parallel to the moving direction of the belt conveyor 31.
．． A budding cart 60 is placed on the 51. Budding trolley 6
0 is framed in a box shape and has the width and length dimensions of two seedling growing boxes, and the four sets of stacked seedling growing boxes serve as a storage section.

The transfer machine 40 is disposed at the end of the belt conveyor 31 on the side opposite to the side where the chain conveyors 51, 51 are disposed, and includes an air cylinder 41 whose piston rod advances toward the chain conveyor 51, cylinder 41
Guide shafts 42 and 42 are arranged on each side of the air cylinder 41 and are parallel to the air cylinder 41, respectively.
The air cylinder 41 consists of a frame-shaped pushing member 43 whose lower part is attached to the end of the guide shaft 42 and the chain conveyor side end of each guide shaft 42, 42 and stands vertically.
Due to the advance of the piston rod at , the pushing member 43
is moved to the side of the chain conveyor 51 while remaining vertical.

The operation of a facility with such a configuration is as follows. The seedling raising boxes 10 that have been sown by the seeding device are sequentially conveyed by a belt conveyor 11, and are sequentially distributed to each belt conveyor 11 and 12 by a distribution rod 13.

When one seedling raising box 10 reaches the device 20 of the present invention, the seedling raising box 10 is placed on the chain conveyor 21.21 and moves, and when it reaches the terminal end, the driving of the chain conveyor 21.21 is stopped. Next, the piston rod of the air cylinder 23 is advanced, and the lifting table 22 is raised in a horizontal state, and advanced above the conveyance area of the chain conveyor 21.21, and the seedling boxes on the chain conveyor 21.21 are raised. It is placed on the lifting table 22. When the lifting platform 22 is further raised from the upper surface of the chain conveyor 21.21 and the seedling box reaches the same height as the position where the gripping device 26.26 is installed, the drive of the air cylinder 23 is stopped, and the air cylinder in the gripping device 26 is stopped. 26a and 26a operate to advance the rod, and each clamp 26C is attached to the seedling box.
926c becomes engaged. As a result, the driving of the air cylinders 26a and 26a is stopped, and the lifting platform 2
2 is lowered, and the seedling raising box is held by the clamp parts 26c, 26c of the gripping device 26.26. The lifting platform 22 is further lowered from the conveying area of the chain conveyor 21.21 and stopped.

When the next seedling raising box 10 is transported to the device 20 of the present invention in this state, the device 20 of the present invention repeats the same operation as described above, and the seedling raising box is placed on the lifting table 22. Then, the elevator platform 22 is raised. and gripping device 26
, 26, when the upper surface of the seedling growing box on the lifting platform 22 comes into contact with the lower surface of the seedling growing box gripped by the clamp parts 26c, 26 of the lifting platform 22, the lifting of the lifting platform 22 is stopped, and the gripping devices 26, 26 are stopped. Air cylinder 26a.

When the rod 26a is retracted, the grip on the seedling growing box is released, and the two seedling growing boxes are stacked on the lifting table 22. In this state, the lifting platform 22 is further raised by one seedling box, and the lower seedling box is held by the gripping device 2.
The height is the same as that of the clamp part 26C926c in 6.26, and the rods of the air cylinders 26a, 26a are advanced so that the lower seedling box is placed in the clamp part 26c, 26.
c. When the lifting platform 22 is lowered, the lower seedling box is held by the gripping device 26.26. Clamp part 26c of
, 26c, and thus the two seedling growing boxes are gripped by the gripping devices 26, 26.

Thereafter, the same operation is repeated, and the gripping device 26 26 grips 30 seedling boxes in a stacked state. Then, by raising the lifting table 22 and retracting the rod of the air cylinder 26a in the gripping device 26.26, 30
The boxes of seedling boxes are stacked and placed, and in this state, the lifting platform 22 is lowered and the stacked seedling boxes are placed on the chain conveyor 21.21. is driven and the stacked seedling boxes are transferred onto a belt conveyor 31. The belt conveyor 31 conveys the transferred seedling growing box to its end, and when the seedling growing box reaches the end, its driving is stopped. In this case, since the guides 32 and 32 are erected on each side of the belt conveyor 31, there is no risk that the stacked seedling boxes will fall over, and there is no risk that the loads will collapse.

When the driving of the belt conveyor 31 is stopped, the air cylinder 41 in the transfer machine 40 is operated, and the pushing member 43
The stacked seedling growing boxes are pushed together and all of the seedling growing boxes are transferred to the budding cart 60 placed on the chain conveyor 5151.

Seedling boxes stacked from each side are transferred to the budding cart 60 by each transfer #1A40.40, and when the transfer of the seedling boxes by each transfer machine 40.40 is completed, the chain conveyor 51. 51 is driven to move the budding cart 60, and the part where the seedling raising box is not transferred faces each transfer machine 40, 40, and the seedling raising box is transferred to this part.

The budding cart 60 with the seedling boxes transferred thereto is moved to a predetermined position, and the atmosphere is controlled by adjusting the temperature, humidity, etc.

〔effect〕

According to the present invention, it is possible to lift the seedling growing box to be transported in a substantially horizontal state, and to hold the lifted seedling growing box in a substantially horizontal state. There is no risk of it collapsing, and since an air cylinder is used, no impact is applied to the seedling growing box, so there is no risk of spilling the soil etc. in the seedling growing box.

Further, in the above-described embodiment, since the seedling growing box is transferred to the budding cart 60 from each side, the seedling growing box can be transferred efficiently. In this case, since the stacked seedling growing boxes are transferred to the budding cart, the height of the loading device can be reduced. Further, since guides 32 are provided on each side of the belt conveyor 31 for moving the stacked seedling growing boxes, there is no risk of the stacked seedling growing boxes falling over, and there is no risk of the load being dislocated.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a layout diagram of the vicinity of the device of the present invention, FIG. 2 is an elevational view thereof, and FIG. 3 is a cross-sectional view of the device of the present invention. 11.12.31...Belt conveyor 20...8
Heavy equipment 21.51...Chain conveyor 22...
Lifting platform 23.26a...Air cylinder 26.
...Gripping device 26c...Clamp part 40...
Transfer machine 60.--Budding trolley patent Applicant: Yanmar Agricultural Machinery Co., Ltd. and one other representative Patent attorney Noboru Kono Answer 3 Figures

Claims (1)

[Claims] 1. In a seedling box stacking device for stacking seedling boxes that have been sown, there is a lifting table that is driven up and down by an air cylinder and that sequentially lifts the seedling boxes that are being transported one after another, and a lifting table that is arranged opposite to each other above the lifting table. and a gripping device that is driven toward and away by an air cylinder and that grips the seedling raising box lifted by the lifting table upon its approach, and the seedling raising boxes gripped by the gripping device are sequentially transported. 2. A stacking device for seedling growing boxes, characterized in that the operation of lifting the boxes by lifting with the lifting platform, releasing the grip by the gripping device, and stacking both boxes from below is repeated.