JPH05306019A - Raising seedling box housing device - Google Patents

Abstract

PURPOSE:To provide a raising seedling box housing device which can conduct raising seedling box housing work with high efficiency and improve housing capability. CONSTITUTION:After a raising seedling box A carried to a box lifting position is lifted up in order by the first lift mechanism 16 and the second lift mechanism 17, and eight raising seedling boxes A are received and held by the first lift mechanism 16, the eight boxes A received and held by the first lift mechanism 16 at a higher speed than the box lifting cycle speed of the second lift mechanism 17 are moved to an upward box storage position to form a space between a box receiving plate 22 at the final stage which constitutes the first lift mechanism 16 and the box receiving plate 22 at the first stage which constitutes the second lift mechanism 17. Then a pusher plate in a box loading machine is moved in a cross direction to transfer the eight boxes A lifted by the first lift mechanism 16 to respective box housing shelves in the box loading machine. At the same time, the boxes A carried to a box lifting position are lifted up continuously in order by the second lift mechanism 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nursery box rack used for placing a large number of nursery boxes subjected to seeding treatment, such as floor soil, sowing, and covering soil, at predetermined intervals on a nursery car. Regarding the putting device.

[0002]

2. Description of the Related Art Conventionally, as a nursery box shelving device for shelving the above-mentioned nursery box, for example, a nursery box shelving device already developed by the applicant (Practical application No. 1-1237).
There is No. 9).

This seedling raising box shelving device synchronously rotates the left and right revolving chains stretched on both sides of the box feeding conveyor so that the left and right box receiving plates, which are multi-tiered on the revolving chains, are installed from below. The seedling raising box is circulated inward toward the upper side and is conveyed to the box lifting position on the box feeding conveyer by holding the left and right box support plates in a horizontal position in sequence, and the predetermined box is set at the box storage position set above the same position. Lift each number of nursery boxes and stop rotation.

After that, the box loading cylinder is operated,
A predetermined number of seedling raising boxes placed between the upper box receiving plates are pushed out by the pusher plate in the box loading direction, and the box shelves are stopped at a height position that is level with the upper box receiving plates. Transfer a specified number of seedling raising boxes to the box-loading shelves of the inserter all together. After that, it is a device for raising and lowering each box loading shelf of the box shelving machine and shelving a predetermined number of each nursery box on each shelf of the nursery cart that has moved to the side of the machine.

[0005]

However, as described above, the pusher plate is moved back and forth in the box loading direction, and a predetermined number of seedling raising boxes lifted by the left and right orbiting chains are set in the box shelving machine. Since it is transferred to the box shelf, immediately after loading the box, the pusher plate that returns to the initial position and the pusher plate that returns to the initial position collide with each other to prevent the pusher plate from colliding with each other. The left and right circulating chains cannot be rotated until the plate returns to the initial position, and it is necessary to temporarily stop the box lifting operation by the left and right circulating chains or slow down the box lifting speed, which increases the operating efficiency of the entire device. Has a problem that it becomes worse.

When the box loading speed by the pusher plate is increased, the operation time required for loading the seedling raising box can be shortened, but the impact or reaction generated at the time of loading causes the floor soil and covering soil to be unevenly distributed. However, there is a problem that the seeding situation and germination conditions in the nursery box are impaired due to the outflow of part.

In view of the above problems, the present invention independently drives the first endless belt and the second endless belt stretched to the box lifting position to sequentially lift the seedling raising box, and thereby the box lifting position on the box transport path. It is an object of the present invention to provide a seedling raising box shelving device that can continuously lift the seedling raising container that is transported to the machine without stagnation, continuously operate the entire device, and improve the shelving capacity.

[0008]

According to a first aspect of the present invention, the left and right endless belts stretched at a box lifting position on the box conveyance path are first.
A plurality of boxes which are divided into an endless belt and a second endless belt and are provided side by side, and a part of the first endless belt and a part of the second endless belt continuously receive and hold a predetermined number of seedling raising boxes. The receiving plates are attached at equal intervals, and the first endless belt and the second endless belt are synchronously rotated when the box is lifted, and one endless belt preceding when the box is lifted receives a predetermined number of nursery boxes. After holding, the seedling-growing box of the predetermined number of boxes received and held by the preceding endless belt is moved to the upper box storage position at a speed higher than the box lifting cycle speed by the other endless belt that follows, and is transferred to the preceding endless belt. At least the operating time when the pusher plate of the box loading means moves back and forth in the box loading direction between the installed box receiving plate at the final position and the subsequent box receiving plate installed at the endless belt. It is a seedling raising box shelving device that forms a space corresponding to the set time of That.

[0009]

According to the present invention, when the box is lifted, the first endless belt and the second endless belt, which are stretched at the box lifting position on the box conveyance path, are driven synchronously in the box lifting direction to reach the box lifting position. The seedling raising box to be conveyed is received and held between the box receiving plates attached to the first endless belt and the second endless belt, and is sequentially lifted. That is,
After the preceding first endless belt receives and holds a prescribed number of seedling raising boxes, the preceding first endless belt receives and retains the prescribed number of raising boxes at a speed higher than the box lifting cycle speed of the succeeding second endless belt. The box is moved to the upper box storage position and between the box receiving plate at the final stage attached to the preceding first endless belt and the box receiving plate at the initial stage attached to the subsequent second endless belt. , A space corresponding to the operation time when the pusher plate of the box loading means moves back and forth in the box loading direction.

Thereafter, the pusher plate of the box loading means is moved back and forth in the box loading direction to transfer the predetermined number of seedling raising boxes lifted by the preceding first endless belt to the box shelving section on the next stage. To do. On the other hand, the other second endless belt continues the seedling raising box transported to the box lifting position on the box transporting route while transferring the seedling raising box lifted by the preceding first endless belt. It is received and held between the box receiving plates of, and is sequentially lifted. By the time the seedling raising box at the starting position of the second endless belt reaches the movement range of the pusher plate, the preceding first endless belt completes the box loading operation and returns the pusher plate of the box loading means to the initial position. Let
Similarly, the receiving and holding of the seedling raising box for the first endless belt and the second endless belt continuously operates with the first endless belt and the second endless belt. In addition, the transfer of the seedling raising box to the box shelving unit is repeated by alternately operating the first endless belt and the second endless belt.

[0011]

According to the present invention, the seedling-growing box can be continuously lifted by the first endless belt and the second endless belt stretched at the box lifting position on the box transporting path without stagnation. Like the conventional device, wasteful time such as temporarily stopping the box lifting operation or slowing down the box lifting speed until the pusher plate returns to the initial position can be saved, and the operation time required for shelving seedling raising boxes can be reduced. Not only can it be shortened significantly, but the entire equipment can be operated continuously to improve the box shelving capacity.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. The drawings show a seedling raising box shelving device used when shelving a large number of seedling raising seedlings that have been seeded in a seedling plant in a seedling raising trolley at predetermined regular intervals, and are shown in FIGS. 1, 2 and 3. The seedling raising box shelving device 1 includes a large number of seedling raising boxes A supplied from a sowing plant (not shown).
Are sequentially conveyed to the box lifting position set on the box feed conveyor 2, and the box lifting machine 3 arranged above the position is driven,
A large number of seedling raising boxes A ... that are conveyed to the box raising position on the box feeding conveyor 2 are sequentially lifted, and the eight seedling raising boxes A .. Eight boxes of each nursery box A ... are collectively transferred to the box shelf 4 that has been lifted and stopped moving up and down on the side of the same position. Moreover, after driving the trolley feeding conveyor 5 arranged on the side floor of the box shelving machine 4 to stop moving the empty seedling raising trolley 6 to the box shelving position set on the trolley feeding conveyor 5, A device that drives the shelving machine 4 and collectively sheds eight nursery boxes A ... on each shelf 6a of the nursery cart 6 that has stopped moving to the box shelving position on the carriage feed conveyor 5. Is.

The box feed conveyor 2 described above is a V-shaped box feed between the pulleys 8 and 8 pivotally supported at the transport side start end of the support frame 7 and the pulleys 9 and 9 pivotally supported at the transport side end. The sprocket 1 is stretched by the driving force of the box feed motor 11 with a speed reducer, which is provided on the lower part of the starting end side by stretching the belts 10, 10.
Box feed belt 1 via 2, 13 and drive chain 14
Rotate 0 and 10 in the box feed direction to feed the box feed belt 1
The seedling raising boxes A placed on 0 and 10 are aligned in the longitudinal direction and conveyed to the box lifting position, and the short side front end of the seedling raising box A is attached to the buffer stopper 15 arranged at the box lifting position. The parts are abutted to regulate the position.

As shown in FIGS. 4 and 5, the above-mentioned box lifting machine 3 includes a first lift mechanism 16 and a second lift mechanism 16 which compose the box lifting machine 3.
By independently driving the lift mechanism 17, each seedling raising box A, which is conveyed to the box lifting position on the box feeding conveyor 2, is sequentially lifted by the first lift mechanism 16 and the second lift mechanism 17, and set above the same position. Raise each of the eight nursery boxes A ... to the box storage position. After that, the box loader 49 arranged on the upper rear side with respect to the box load direction is driven to batch-load the eight nursery boxes A ... on each box loading rack of the box rack loading machine 4 described later. And reprint.

The first lift mechanism 16 described above fixes the sprockets 19 and 19 on rotary shafts 18 and 18 which are mounted on both sides below the box lifting position, respectively, and mounts them on both sides above the box lifting position. The sprockets 21 and 21 are fixed on the rotating shafts 20 and 20 on the upper side, respectively, and the rotating shafts 1 on both lower sides are fixed.
Sprockets 19 and 19 fixed on 8 and 18, respectively,
Two first chains 22, 2 are provided between the sprocket 21, 21 fixed on the rotary shafts 20, 20 on both upper sides, respectively.
2 are stretched in parallel, and two box receiving plates 23, 23 formed in an L-shaped cross section are horizontally opposed to each other at the opposite side peripheral portions of the first chains 22, 22 stretched on both left and right sides. In addition to being erected, eight box receiving plates 23 ... Are erected at equal intervals in the longitudinal direction of the first chains 22, 22 stretched on both left and right sides.

A rotary shaft 20, which is mounted on both upper sides,
Umbrella type gears 24, 24 are fixed to one side end of 20, and umbrella type gears 26, 2 are attached to both side ends of an interlocking shaft 25 mounted on the same side.
6 is fixed, and the gear 24 fixed on the rotary shaft 20, 20
24 and the gears 26, 26 fixed on the interlocking shaft 25 are meshed with each other, and the drive sprocket 2 for the first lifting motor 27 with a reduction gear arranged on the upper right side with respect to the box feeding direction.
8 and the interlocking sprocket 29 fixed on the rotary shaft 20 on the upper right side, and the drive chain 30 is stretched between the first and second lifting motors 27. The chains 22 and 22 are synchronously rotated, and the eight box receiving plates 23 that are erected around the opposite side peripheral portions of the first chains 22 and 22 are moved inward in the box lifting direction.

The above-mentioned second lift mechanism 17 has the sprockets 19 and 1 fixed on the rotary shafts 18 and 18 on both lower sides.
9, the bearing 3 on the rotary shaft 18, 18
The sprockets 32 and 32 are attached respectively via 1, 31 and are close to the sprockets 21 and 21 fixed on the rotary shafts 20 and 20 on both upper sides, and bearings 33 and 33 are mounted on the rotary shafts 20 and 20. Sprocket 34, 34
And the sprocket 32, 32 mounted on the rotary shafts 18, 18 on both lower sides and the rotary shaft 2 on both upper sides, respectively.
Two second chains 35, 35 are stretched in parallel with the sprocket 34, 34 mounted on 0, 20, and the opposite side peripheral portions of the second chains 35, 35 stretched on both left and right sides. In addition, two box receiving plates 36, 36 formed in an L-shaped cross section
Are horizontally laid opposite to each other, and eight box receiving plates 36 are laid at equal intervals in the longitudinal direction of the second chains 35, 35 stretched on both left and right sides. ..

The rotary shaft 20, which is mounted on both upper sides,
Two driven shafts 37, 37 are mounted on the lower side of the rotary shaft 20 in parallel with the rotary shafts 20, 20, and the rotary shafts 20, 20 on the upper stage side
The flat gears 39, 39 mounted on the upper side via bearings 38, 38 mesh with the flat gears 41, 41 fixed on the lower driven shafts 37, 37, respectively, and the upper gears Sprocket 3 mounted on the rotating shaft 20, 20
4, 34 and gears 39, 39 are fitted and fixed.

Further, the driven shafts 37, 37 mounted on the lower stage side
Umbrella type gears 42, 42 are fixed to one side end, and umbrella type gears 44, 44 are fixed to both side ends of the interlocking shaft 43 mounted on the same side, and fixed on the driven shafts 37, 37. Ga 42, 42
And the gears 44, 44 fixed on the interlocking shaft 43 are meshed with each other, and the drive sprocket 46 of the second lifting motor 45 with a reduction gear arranged on the upper left side with respect to the box feeding direction.
And a drive chain 48 between the interlocking sprocket 47 fixed on the driven shaft 37 on the upper left side,
By the driving force of the lifting motor 45, the second chains 35, 35 stretched on both left and right sides are synchronously rotated, and the eight box receiving plates 36 are installed on the opposite side peripheral edge of the second chains 35, 35. Move inward in the direction of lifting the box.

The box loader 49 described above is located at a rear position facing the rear end portion on the short side of the nursery box A lifted to the box storage position, and is sized so as to contact each of the eight nursery boxes A. The vertically elongated pusher plate 50 is vertically installed, and the piston rod of the loading cylinder 51 disposed on the rear upper side of the same box storage position is connected and fixed to the center of the upper end of the pusher plate 50. By the operation of 51, the first lift mechanism 1
6 or the retracted positions facing the respective nursery boxes A for eight boxes lifted by the second lift mechanism 17, and the respective mechanisms 16, 1
The pusher plate 50 is moved back and forth to the forward position where the respective eight nursery boxes A lifted by 7 are collectively transferred to the respective box mounting shelves 59 of the box shelving machine 4 described later.

The box shelving machine 4 described above is shown in FIGS.
As shown in FIG. 5, support plates 53, 53 are vertically installed at the center of the rear side of the box elevating frame 52 formed in an H shape.
Guide rollers 54, 54 axially supported between the upper ends of the 3, 53
And a guide roller 55, which is axially supported between the lower ends, engages a vertically-sliding guide strut 56 having a quadrangular cross section, which is erected in the central portion on the rear side with respect to the box shelving direction. While always guiding the box elevating frame 52 in a horizontal posture, a shelf supporting frame 57 is provided vertically at the central portion of the lower surface side of the box elevating frame 52, and shelf supporting plates 58, 58 vertically provided at both ends on the front side. In between, eight box-mounting shelves 59 ... Each of which is formed to have a size for horizontally mounting one box A for raising seedlings are erected at equal intervals in the vertical direction. The shelf support plate 5
Shutters 60, 60 are pivotally mounted on the front side of 8, 58 so as to be openable and closable.

A sprocket 6 is axially supported on the upper part of the apparatus.
1, 61, sprocket 62, 62, and sprocket 63, 63 are stretched in parallel with two lifting chains 64, 64, and one end of the lifting chains 64, 64 is attached to both upper surfaces of the box lifting frame 52. A weight 6 which is fixedly connected to the upper part and the other end of the lifting chains 64, 64 is hung on the rear part of the device.
5, the elevating chains 64, 64 are moved up and down through the speed reducer 67, the sprockets 68, 69, and the drive chain 70 by the driving force of the box elevating motor 66 arranged on the upper part of the device. With respect to a position horizontal to the box receiving plates 23 of the first lift mechanism 16 or the box receiving plates 36 of the second lift mechanism 17, which are rotated forward and backward to stop at the box storage position, the machine side The raising / lowering stop is stopped at a height position that is horizontal to the upper shelf portions 6a ... Or the lower shelf portions 6a. At the same time, the weight of the weight 65 is adjusted according to the lifting weight to reduce the load applied to the drive system.

The box elevating frame 52 described above includes guide rails 71, which are installed on both left and right sides of the box elevating frame 52.
The upper ends of comb-shaped box shelf plates 72, 72 are slidably engaged in the front and rear direction on 71, and the projecting portions 72a formed on the shelf side ends of the box shelf plates 72, 72 ... In the meantime, eight shelving racks 73 ... are horizontally erected so as to face the long side ends of the seedling raising boxes A ... Placed on the box placing shelves 59. The shelving chains 76, 76 are stretched between the sprockets 74, 74 pivotally supported on both sides of the front end of the frame 52 and the sprockets 75, 75 pivotally supported on both sides of the rear end. The end portion of the sprocket 7 is connected and fixed to the upper ends of the box shelving plates 72, 72, and the sprocket 7 is driven by the drive force of the box shelving motor 77 with a reducer arranged in the central portion of the upper surface side of the box lifting frame 52.
Each of the seedling raising boxes A mounted on the box placing shelves 59 of the box elevating frame 52 by rotating the shelving putting chains 76, 76 forward and backward in the box placing direction via the drive chains 80 and 79.
The box shelving rods 73 ... at the retracted position facing the longitudinal end of the box and at the forward position where the eight box nursery boxes A ... are collectively transferred to the shelf sections 6a ... Move back and forth.

The above-mentioned trolley feeding conveyor is shown in FIGS.
As also shown in FIG. 4, a support frame 81 is laid on the floor surface of the box shelving position set on the side of the machine, orthogonal to the box shelving direction of the box shelving machine 4 described above. Two traveling rails 82, 82 are laid in parallel on the floor surfaces of both sides, and the sprocket 83, 83 pivotally supported at the loading-side start end of the support frame 81 and the sprocket 84 pivotally supported at the unload-side end. , 84 are stretched between them, and chain guides 86, 86 installed on the upper side of the support frame 81 and chain guides 87, 87 installed on the lower side of the support frame 81 85, 85 are engaged with each other, and by the driving force of the pedestal feed motor 88 with a reduction gear arranged in the central portion of the unloading side, the pedestal feed chains 85, 85 are fed in the pedestal feed direction via the sprockets 89, 90 and drive chain 91. Turn to Allowed to travel and move the nursery cart 6 placed on the table feed chains 85, 85 in Hakotana insertion position.

As shown in FIG. 6, the above-described seedling raising dolly 6 is formed in such a size that two seedling raising boxes A, A can be placed in parallel on the front and rear portions of a horizontally long trolley body 6b. Each of the shelves 6a is erected in 16 steps at equal intervals in the vertical direction, and four casters 6 are axially supported at the four corners on the lower surface side of the carriage main body 6b.
c is engaged with the above-mentioned traveling rails 82, 82 to travel.

Assuming that the illustrated embodiment is constructed as described above, the shelving operation of the nursery box A by the nursery box shelving apparatus 1 will be described below. As shown in FIG. 1, the box feed conveyor 2
The box feeding motor 11 is driven to convey a large number of seedling raising boxes A ... supplied from a sowing plant (not shown) one by one to the box lifting position set on the box feeding conveyor 2. At the same time, the first lift mechanism 16 and the second lift mechanism 17 constituting the box lifting machine 3 are independently driven to drive the box feed conveyor 2
Sequentially lift a large number of each nursery box A, which is transported to the upper box lifting position.

First, as shown in FIG. 3, by driving the first lifting motor 27 of the first lift mechanism 16, the upper and lower eight-stage box receiving plates 2 erected on the left and right first chains 22, 22.
3 and 23 are circulated inward from the lower side to the upper side, so that the box receiving plates 2 on the left and right sides from both lower sides of the box feeding conveyor 2
3 and 23 are vertically lifted, and the respective seedling raising boxes A ... Which are conveyed to the box lifting position are sequentially lifted by the left and right box receiving plates 23 and 23, and are faster than the box lifting cycle speed of the second lift mechanism 17. Eight boxes of the respective nursery boxes A ... Receiving and holding by the first lift mechanism 16 are stopped at the upper box storage position at a speed, and the eighth stage box receiving plates 23, 23 constituting the first lift mechanism 16 are stopped. And 1 which constitutes the second lift mechanism 17
The box receiving plates 36, 36 of the stage are separated from each other by a predetermined space (three stages or four stages) corresponding to the operation time when the pusher plate 50 of the box loading machine 49 moves back and forth in the box loading direction. ..

At the same time, as shown in FIG. 4, the box loader 4
By operating the loading cylinder 51 of 9, the respective nursery boxes A for 8 boxes placed between the box receiving plates 23 in the upper and lower eight stages, 23 ...
Is pushed out in the box loading direction by the pusher plate 50, and is lifted and stopped at a height position that is horizontal with the box receiving plates 23 ... ... is transferred in a lump.

At the same time, the second lifting motor 45 of the second lift mechanism 17 is driven to transfer the second lifting motors 45 of the second lift mechanism 17 while transferring the eight nursery boxes A ... Which have been lifted by the first lift mechanism 16. The upper and lower box receiving plates 36, 36 erected on the chains 35, 35 are made to circulate inward from the lower side to the upper side, and the left and right box receiving plates 36, 36 are vertically arranged from both lower sides of the box feed conveyor 2. Each of the seedling raising boxes A that has been raised and conveyed to the box lifting position is successively lifted by the left and right box receiving plates 36, 36, and at the same time, the first-stage box receiving members constituting the second lift mechanism 17 By the time the plates 36, 36 reach the movement range of the pusher plate 50, the box loading operation by the first lift mechanism 16 is completed, and the pusher plate 50 of the box loading machine 49 is returned to the initial position.

After the boxes are loaded, the first lift mechanism 16
The upper and lower box receiving plates 23, 23 erected on the first chains 22, 22 of the first chain 22, 22 are made to return outward from the upper side to the lower side, and the first chains 22, 22 of the first lift mechanism 16 are rotated.
The box receiving plates 23, 23 of the first stage installed on the second lift mechanism 17 are close to the box receiving plates 36, 36 of the eighth stage installed on the second chains 35, 35 of the second lift mechanism 17, 16
8 box upper and lower box receiving plates 23, 23 constituting the second lift mechanism 17, and 8 box upper and lower box receiving plates 36, 3 constituting the second lift mechanism 17
Follow 6 and move around.

Subsequently, the upper and lower box receiving plates 36 and 3 of the upper and lower eight stages which are erected on the second chains 35 and 35 of the second lift mechanism 17 are provided.
Each of the eight nursery boxes A, which are conveyed to the box lifting position by 6, are sequentially lifted, and each of the eight boxes of the eight boxes received and held by the second lift mechanism 17 is faster than the box lifting cycle speed of the first lift mechanism 16. The boxes A ... are lifted to the upper box storage position, and the eighth-stage box receiving plates 36, 36 forming the second lift mechanism 17 and the first-stage box receiving plates 23 forming the first lift mechanism 16 are lifted. , 23 are separated from each other by a predetermined space.
At the same time, the loading cylinder 51 of the box loader 49 is operated to move the eight nursery boxes A ... Eight boxes placed between the upper and lower box receiving plates 36, 36 in the box loading direction by the pusher plate 50. 8 to each of the box mounting shelves 59 of the box shelving machine 4 that has been pushed out and stopped at a height position that is horizontal with the box receiving plates 36.
Transfer each box of each nursery box A ...

At the same time, the left and right box receivers erected on the second chains 22, 22 of the first lift mechanism 16 are transferred while the eight nursery boxes A ... Which are lifted by the second lift mechanism 17 are transferred. The seedling raising boxes A, which are conveyed to the box lifting position by the plates 23, 23, are successively lifted, and the first box receiving plates 23, 23 constituting the first lift mechanism 16 are connected to the pusher plate 50. By the time it reaches the movement range, the box loading operation by the second lift mechanism 17 is completed, and the pusher plate 50 of the box loading machine 49 is returned to the initial position. After loading the box, the second chain 3 of the second lift mechanism 17
The upper and lower eight-stage box receiving plates 36, 36 erected on the upper and lower tiers 5 and 35 are rotated outward from the upper side to the lower side, and each of the first tiers is erected on the second chains 35, 35 of the second lift mechanism 17. The box receiving plates 36, 36 are connected to the first lift mechanism 16 by the first
8th stage box support plates 2 installed on the chains 22, 22
3 and 23, the upper and lower box receiving plates 36 and 36 of the second lift mechanism 17 which follow the upper and lower eight steps of the box receiving plates 23 and 23 of the first lift mechanism 16, respectively. Move around.

On the other hand, each of the eight raising boxes A ... Raised by the first lift mechanism 16 or the second lift mechanism 17,
After the transfer to the box mounting shelves 59 of the box elevating frame 52 constituting the box shelving machine 4, the box elevating motor 66 of the box shelving machine 4 is driven as shown in FIG. Stop moving up and down the box mounting shelves 59 of the box elevating frame 52 at a height position that is level with the upper shelves 6a ... or the lower shelves 6a. To do. At the same time, the box shelving motor 77 is driven to drive the box lifting frame 5
8 box seedling boxes A placed on the box shelves 59 of 2 ...
... are extruded in the box shelving direction by the shelving rods 73, and the upper shelves 6a and the lower shelves 6a, which are erected on the front side of the seedling carriage 6, are provided with 8 shedling boxes. Place A ... side-by-side in parallel and put in shelves.

Next, 32 boxes of seedling raising boxes A are put on the respective shelves 6a installed on the front side of the seedling raising carriage 6, and then the carriage feeding motor 88 of the carriage feeding conveyor 5 is driven to raise the seedlings. Move the rear side of trolley 6 to the box shelf position,
Eight boxes of each nursery box A are placed side by side on the upper shelves 6a and the lower shelves 6a installed on the rear side of the rear shelves 6a. Similarly, after placing 64 seedling raising boxes A ... on the leading seedling raising trolley 6, the pedestal feeding motor 88 is driven to put the shelving placed on the pedestal feeding chains 85, 85. The seedling raising carriage 6 is carried out, the succeeding seedling raising carriage 6 is moved to the box shelving position, and the shelving work for the seedling raising box A is continued.

As described above, the first chains 22 and 22 of the first lift mechanism 16 and the second chain 3 of the second lift mechanism 17 stretched around the box feed conveyor 2 at the box lifting position.
With 5, 35, the nursery box A can be continuously lifted without stagnation, the box lifting operation is temporarily stopped until the pusher plate 50 returns to the initial position as in the conventional device, and the box lifting speed is increased. It is possible to save unnecessary time such as delaying, to significantly reduce the operation time required for the shelving work of the nursery box A, and to continuously operate the entire apparatus to improve the shelving capacity.

In the correspondence between the configuration of the present invention and the above-described embodiment, the box transport path of the present invention corresponds to the box feed conveyor 2 of the embodiment, and hereinafter, similarly, the first endless belt is the first lift. It corresponds to the first chain 22 that constitutes the mechanism 16, the second endless belt corresponds to the second chain 35 that constitutes the second lift mechanism 17, and the box loading means is the box loading machine 49 and the loading cylinder 51. Correspondingly, the box shelving unit corresponds to each of the box mounting shelves 59 ... Constituting the box shelving machine 4, but the present invention is not limited to the configuration of the above-described embodiment.

In the above-described embodiment, the eight box-type seedling raising boxes A ...
When transferring to each box mounting shelf 59 ...
Operation when the pusher plate 50 of the box loader 49 moves back and forth between the eighth-stage box receiving plate 23 forming the No. 6 and the first-stage box receiving plate 36 forming the second lift mechanism 17. A predetermined space (three steps or four steps) corresponding to time is formed, but a space (at least three steps or more) longer than the operation time when the pusher plate 50 moves back and forth may be formed.

[Brief description of drawings]

FIG. 1 is a side view showing a box lifting operation of a seedling raising box shelving device.

FIG. 2 is a side view showing a box putting operation of the seedling raising box putting apparatus.

FIG. 3 is a plan view showing an arrangement state of a seedling raising box shelving device.

FIG. 4 is a perspective view showing a box lifting operation of the box lifting machine.

FIG. 5 is a vertical sectional side view showing a power transmission system of the box lifting machine.

FIG. 6 is a plan view showing a box putting operation of the box putting machine.

FIG. 7 is a vertical cross-sectional front view showing the carriage feeding operation of the carriage feeder.

[Explanation of symbols]

 A ... Seedling raising box 1 ... Seedling raising box shelving device 2 ... Box feeding conveyor 3 ... Box raising machine 4 ... Box shelving machine 5 ... Cart feeding conveyor 6 ... Nursery cart 6a ... Shelf 16 ... 1st lift mechanism 17 ... 2nd Lifting mechanism 22 ... First chain 23 ... Box receiving plate 35 ... Second chain 36 ... Box receiving plate 49 ... Box loading machine 50 ... Pusher plate 52 ... Box lifting frame 59 ... Box loading shelf

Claims (1)

[Claims] 1. The left and right endless belts stretched between a box lifting position on a box transporting path and a box storing position above the same position are rotated in the box lifting direction and transported to the box lifting position. The nursery box is received and held between the box receiving plates attached to the left and right endless belts and lifted to the upper box storage position, and then the pusher plate of the box loading means arranged at the box storage position is moved in the box loading direction. A seedling raising box shelving device that moves back and forth to transfer the prescribed number of seedling raising boxes to the same position in the box shelving unit on the next stage, and is placed at the box raising position on the above box transport path. Each of the left and right endless belts that have been hung is divided into a first endless belt and a second endless belt and are provided side by side, and a predetermined number of seedling raising boxes are provided in a part of the first endless belt and a part of the second endless belt. A plurality of box receiving plates for receiving and holding continuously are attached at a predetermined equal interval, and the first endless belt and the second endless belt are lifted when the box is lifted. While rotating for a period, one of the preceding endless belts receives and holds a predetermined number of seedling-growing boxes when the box is lifted, and then the preceding endless belt receives and holds it at a speed faster than the box lifting cycle speed of the other endless belt that follows. The predetermined number of seedling raising boxes are moved to the upper box storage position, and the box receiving plate at the final stage attached to the preceding endless belt and the box receiving plate at the initial stage attached to the subsequent endless belt. A seedling raising box shelving device that forms a space corresponding to a set time equal to or longer than an operation time when the pusher plate of the box loading means moves back and forth in the box loading direction.