JP3491490B2 - Nursery facilities - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling raising facility for growing seedlings for use in a seedling transplanter. 2. Description of the Related Art In a seedling raising facility for growing seedlings used for a seedling transplanter in paddy rice cultivation or the like, a certain number of seedling boxes in which seeds are sown are stacked in a stack by a seedling box stacking device. The stacked seedling boxes are stored for a suitable number of days in a germination room where the temperature, humidity, lightness, etc. are controlled, and the seeds are germinated.After the seeds germinate, the stacked seedling boxes are taken out of the germination room, and each seedling is removed. The boxes are transferred to a shelf-like greening cart by a seedling box transfer device, and the seedlings are grown until they reach a certain size. In general, in the above-mentioned seedling raising facilities, seeded seedling boxes are stacked in a stack on a pallet by a seedling box stacking device, and the stacked seedling boxes placed on the pallet are moved using a forklift or the like. The empty pallets after the stacking seedling boxes are transferred to the greening cart by the seedling box transfer device are also returned to the seedling box stacking device using a forklift or the like, while being carried into and out of the germination room. Was. [0004] At present, in order to improve the working efficiency of the seedling raising facility, a technique for automatically carrying a seedling box into and out of the germination chamber is being developed. However, there is a problem how to efficiently return an empty pallet after the stacked seedling boxes are transferred to the greening cart by the seedling box transfer device to the seedling box stacking device. [0005] In order to solve the above problems, the present invention is configured as follows. That is, the seedling raising facility according to the present invention stacks seeded seedling boxes in a stack on a pallet by a seedling box stacking device, loads the stacked seedling boxes into a germination chamber, and seeds the seedling boxes. Germinating, after the seeds germinate, take out the stepped seedling boxes placed on the pallet from the germination room, it is a nursery facility that is re-transferred to a greening cart by a seedling box transfer device, A pallet stacking device for stacking a plurality of empty pallets after the stacked seedling boxes are transferred to the greening cart by the seedling box transfer device, and stacking in a stack by the pallet stacking device. A plurality of pallets transferred to the vicinity of the seedling box stacking device, and a plurality of stacked pallets transferred to the vicinity of the seedling box stacking device by the pallet transfer device. For seedling box stacking equipment It is characterized by comprising a single one by supplying pallet feeder. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be specifically described based on a seedling raising facility shown in the drawings. FIG. 1 is a plan view of the first floor of a nursery facility, FIG. 2 is a plan view of a mezzanine floor, FIG. 3 is a side view showing a work flow, and FIGS. [0007] This nursery facility has two sowing lines,
Seedling box C stored on the mezzanine floor, which is the seedling box storage area,
, But the seedling box conveyors 1, 1 use the seedling box supply devices 2, 2.
The seedling boxes are supplied one by one to the two seeding machines 3 and 3 installed on the first floor by the seedling box supply device. The seeding machine 3 conveys the seedling boxes C in a certain direction by the seeding conveyor 5, puts the bed soil into the seedling boxes being conveyed by the bed soil supply device 6, flattens and flattens the bed. Seed paddy is sown on the soil by a seeding device 7, soil is put on the soil by a soil covering supply device 8, and finally, irrigation is performed. The soil supply ports of the floor soil tank 6a and the cover soil tank 8a are installed on the mezzanine floor, and the soil put into the earth hopper 9 installed on the first floor is raised to the mezzanine floor by the earth elevator 9a. From there, the floor soil tank 6a and the cover soil tank 8a are replenished by a soil conveyor 9b which can be rotated forward and backward. The seed rice sowed by the sowing apparatus 7 is immersed in a soaking tank 11 filled with water and then germinated in a germination chamber 12. 13 is a container for storing seed rice for soaking and germination, and 13a is a container 13
Immersion lift device for moving the container 13 while immersing it in the immersion tank 11, 13b is a container truck for transporting the container 13, 1
Reference numeral 4 denotes a seed pad supply lift for putting the seed paddies after the seeding and germination treatments into the seeding tank 7a of the seeding apparatus 7. The seedling boxes C sowed are stacked in a predetermined number (about 30 pieces) on the pallet P by the stacking device 16 in a stacked manner. The tiered seedling box group (hereinafter, referred to as a “seedling box stacked body”) is placed on the pallet P in two rows in front and back and three rows in left and right. The seedling box stacks placed on the pallet P are carried into and out of the germination chambers 17, by the seedling box carrying-in / out device 23 described later. The germination chamber 17 has a carry-in port 17a and a carry-out port 17a.
, on both sides of the passage 17b connecting the b., a plurality of seedling box storage portions 18a,. 18, 18 are provided. The seedling box storage section 18a
Both front and rear ends of the pallet P on which the seedling box stack is placed are supported by a pair of front and rear support members 18b, 18b. A warm air duct 19 is provided in a space between the seedling box housing portion 18a at the bottom of the gantry 18 and the floor of the germination chamber 17, and a heater 20 provided outside the germination chamber 17 is provided.
Is supplied from the hot air duct 19. An air intake duct 21 is provided at the ceiling of the germination chamber 17, and air in the germination chamber is
Through the heater 20. In this way, by circulating the air in the germination chamber and allowing the warm air to pass through the germination chamber from below to above, the germination chamber can be uniformly heated. Since there is a gap between each of the seedling box stacked bodies placed on the pallet P, warm air can well flow around each seedling box, and each seedling box can be effectively warmed. It is to be noted that other heating equipment such as a hot water pipe and a steam pipe may be provided in place of the hot air duct 19, and the air in the germination chamber is stirred by a stirrer or the like without disposing the intake duct 21. You may do so. In the nursery facility shown in the figure, three such germination rooms are provided in parallel on the left and right sides. In the case of paddy rice, the number of days required for germination is usually three days. Therefore, in order to perform the sowing process at the same work pace every day, the seeding process may be performed in one seedling box per germination room per day. The seedling box loading / unloading device 23 includes a stacking conveyor 24, 24 for transferring the seedling box stacks placed on the pallet P from the seedling box stacking devices 16, 16 to a predetermined position, and the stacking conveyor. Take over the same seedling box stacked body that has been transported,
The loading station conveyor 25 for transporting the seedling box to the vicinity of the loading port of the germination chamber 17 and the same seedling box stack transported by the loading station conveyor are received and transferred to the respective seedling box storage portions 18 a of the gantry 18. At the same time, a transfer machine 26 for transferring the same seedling box stack of each seedling box storage section 18a to the vicinity of the carry-out exit of the germination chamber 17, and the germination chamber 1
Receiving the same seedling box stack transferred near the exit of 7,
An unloading station conveyor 27 that transports the same to a predetermined position, and a transfer conveyor 28 that transfers the same seedling box stacked products that have been transported to the predetermined position by the unloading station conveyor, and transfers the stacked products to the reloading devices 40 and 40 described below. 28. The transfer machine 26 is provided with the support members 18b, 18
b, a pallet table 30 having a front-rear length capable of passing between spaces b. The pallet table 30 is slidably mounted on a lifting base 31 left and right, and the lifting base 31 can be raised and lowered on a lifting guide frame 32. Attached to. The elevating guide frame 32 can be moved back and forth along the up-and-down moving rails 33 and 34 on the passage 17c of the germination chamber 17 and on the extension line on the carry-in side and on the carry-out side. In addition, the carry-in side extension portion 33 of the front and rear moving rails 33 and 34.
a, 34a and input station conveyor 25, left right movable and along the top and bottom of the entrance-side horizontal movement rails 35,36,36, each germinating chambers 17, ... are adapted to be stopped in the input station of . Similarly, outlet port side extension portion 33b of the front and rear movable rails 33 and 34, 34b and output station conveyor 27, it left right movable and along the top and bottom of the outlet port side horizontal movement rails 37,38,38, each germinating chambers 17, ... are stopped. At the end of the carry-in station conveyor 25 and at the start of the carry-out station conveyor 27, elevating roller conveyors 25a and 27a are provided, which can move up and down at least by the thickness of the pallet table 30 from the conveying surface. I have. The lifting roller conveyors 25a, 27
The front-rear length of a is shorter than the front-rear length of the pallet P and is longer than the front-rear length of the pallet table 30. When carrying out the seedling box carrying-in operation, the carrying-in station conveyor 25 is moved to the carrying-in station of the germination room 17 into which the seedling box is to be carried-in. At the start of the seedling box carrying-in operation, the pallet table 30 is located at the left and right centers of the elevating base 31, the elevating base 31 is at the lowest position of the elevating guide frame 32, and the elevating guide frame 32 is located at the carry-in side extension 33 a of the front and rear moving rail.
The transfer machine 24 is on standby in a state where it is located at 34a. In this state, the loading station conveyor 2
When the seedling box stack on the pallet P is conveyed to the end of the pallet 5, the lifting roller conveyor 25a is lowered, and then the pallet table 30 is slid toward the loading station conveyor 25 and moved up and down to the lower position. Roller conveyor 25
Comes above a. Then, as the pallet table 30 is raised above the transport surface of the loading station conveyor 25, the pallet table 30 holds the same seedling box stack on the loading station conveyor. The pallet table 30 holding the seedling box stacked body returns to the left and right centers of the elevating base 31. Next, the elevating guide frame 32 moves along the front and rear moving rails 33 and 34 and the elevating base 31 is moved.
Rises, and the pallet table 30 reaches the side of the desired seedling box housing portion 18a. At this time, the upper surface of the pallet table 30 is slightly higher than the upper surfaces of the support members 18b, 18b.
Then, the pallet table 30 slides toward the seedling box housing portion 18a, and the upper surface of the pallet table 30 is
The raising / lowering base 31 is lowered to a position lower than the upper surfaces of 8b and 18b, so that the same seedling box stacked body held by the pallet table 30 is transferred to the seedling box housing portion 18a. The transfer machine 26 to which the seedling box stack has been transferred returns to the original standby state. Then, the seedling box stacked body conveyed to the terminal end of the loading station conveyor 25 is transferred to a seedling box storage part 18a different from the previous one. By repeating this, the same seedling box stack is transferred to each seedling box storage section 18a,. When carrying out the seedling box carrying-out operation, the carrying-out side conveyors 27 and the carrying-out side extension portions 33b and 34b of the front and rear moving rails are moved to the carrying-out station of the germination room 17 where the seedling box is to be carried out. When the operation is started, the pallet table 30 moves to the side of the desired seedling box storage section 18a. At this time, the upper surface of the pallet table 30 is
18b is slightly lower than the upper surface. Then, the pallet table 30 slides to the lower side of the seedling box housing portion 18a, and the upper surface of the pallet table 30 further supports the support members 18b, 1
The pallet table 30 holds the seedling box stacked body on which the pallets P are stored in the seedling box storage frame 18a by raising the lifting base 31 to a position higher than the upper surface of 8b. The pallet table 30 holding the seedling box stacked body returns to the left and right centers of the elevating base 31. Next, the lifting base 31 moves down to the lowermost position, and the lifting guide frame 32 moves to the carry-out side extension portions 33b and 34b of the front and rear moving rails. Then, the lifting roller conveyor 27 of the unloading station conveyor 27
a is lowered, and the pallet table 30 slides over the lowered roller conveyor 27a. Further, the pallet table 30 is lowered below the transport surface of the unloading station conveyor 27, so that the seedling box stacked body held by the pallet table 30 is placed on the unloading station conveyor 27. The pallet table 30 returns to the left and right centers of the elevating base 31 and moves on to the next operation of carrying out the same seedling box stack. When the seedling box stack is placed on the carry-out station conveyor 27, the lifting roller conveyor 25a is raised to its original height. Then, the unloading station conveyor 27 and the transfer conveyor 28 operate to transfer the seedling box stack to the seedling box transfer device 40. Each seedling box of the seedling box stacked body carried out to the seedling box transshipment device 40 is transshipped by the seedling box transshipment device 40 to a shelf-shaped greening truck 41. Then, the greening cart 41 containing the seedling boxes is carried into the greening room 43 by the greening cart carrier 42 which automatically travels along the guide rail 41a of the magnetic induction type, and the seedlings grow to a predetermined size in the greening room 43. Then, the greening cart 41 is carried out of the greening room 43 by the greening cart carrier 42, and the seedling box C is shipped. On the other hand, the pallets P which have been emptied after the seedling box stacks have been transferred to the greening truck 41 by the seedling box transfer devices 40, 40 are stacked in a stack by the pallet stacking devices 50, 50. Are transported in the upper space of the first floor of the seedling raising facility by the lift-type pallet transport device 51, and returned to the vicinity of the seedling box stacking devices 16, 16. The pallets are supplied one by one to the seedling box stacking devices 16, 16 by the pallet supply devices 52, 52. As described above, a plurality of seedling boxes are transferred by the one-line pallet transfer device 51 by transferring a plurality of pallets P one by one from the seedling box transfer device 40 to the seedling box stacking device 16. The pallets can be returned from the apparatus 40 (two in the illustrated example) to the plurality of seedling box stacking apparatuses 16 (two in the illustrated example), and the space for pallet transport can be reduced. Further, since the pallet is transported in the upper space on the first floor of the seedling raising facility, the pallet transporting device 51 does not obstruct an operator or the like passing through the seedling raising facility. As described above, the nursery facility according to the present invention automatically returns the empty pallets from the seedling box transshipment device to the seedling box stacking device. Moreover, since a plurality of empty pallets are conveyed collectively from the seedling box reloading device to the seedling box stacking device, a plurality of seedling box reloading devices can be transferred from a plurality of seedling box reloading devices to a plurality of seedling box stacking devices using a one-line pallet transfer device. The pallet can be returned to the pallet, and the space for transporting the pallet can be reduced.

[Brief description of the drawings] FIG. 1 is a plan view of the first floor of a nursery facility of a first example. FIG. 2 is a plan view of the mezzanine floor. FIG. 3 is a side view showing a work flow. FIG. 4 is a plan view of a germination chamber and the like. FIG. 5 is a sectional view taken along line S1-S1 in FIG. FIG. 6 is a sectional view taken along line S2-S2 in FIG. [Explanation of symbols] C Seedling box P pallet 3 Seeding machine 16 Stacking device 17 Germination room 23 Seedling box loading / unloading device 40 Transshipment equipment 41 Greening cart 50 Pallet stacking device 51 Pallet transfer device 52 Pallet supply device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01G 9/00 A01G 9/02 610 A01G 9/14

Claims (1)

(57) [Claims] [Claim 1] The seeded seedling boxes are stacked on a pallet by a seedling box stacking device, and the stacked seedling boxes are carried into a germination chamber. After the seeds in the seedling box are germinated and the seeds germinate, the stacked seedling boxes placed on the pallet are taken out of the germination room and transferred to a greening cart by the seedling box transfer device at a nursery facility. A pallet stacking device for stacking a plurality of empty pallets after the seedling boxes are stacked on the greening cart by the seedling box transfer device; and a pallet stacking device. A pallet transport device that transports a plurality of pallets stacked in a stack to the vicinity of the seedling box stacking device; and a plurality of stacked pallets that are transported to the vicinity of the seedling box stacking device by the pallet transport device. Pallets into the seedling box stacking device Nursery, characterized by comprising a one by supplying pallet feeder.