JPH0825635B2 - Nursery box shipping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention is used, for example, to transfer a seedling-growing box that has been subjected to seeding treatment such as floor soil, seeding, and covering soil to a trolley in a seeding plant. Regarding a nursery box shipping device.

(B) Conventional technology Conventionally, as the above-mentioned nursery box shipping device, for example, a nursery box shipping device already developed by the applicant (Japanese Patent Application No. 60-2
13367).

As shown in FIG. 6, the above-mentioned device sequentially transfers the seedling raising box a supplied from the sowing plant (not shown) onto the receiving plate 83, drives the lift device 84, and moves it onto the receiving plate 83. The placed nursery box a is vertically lifted, the air cylinder 85 installed on the upper part of the apparatus is operated, and the receiving plate 83 stopped at the lifted position.
Move the upper nursery box a horizontally with the pusher 86,
The mounting plate 87 stopped at the rising position below the receiving plate 83.
The seedling raising box a is transferred onto it, and the stacking device 88 is driven to vertically lower the placing plate 87 according to the stacking amount of the raising seedling box a, and a large number of raising seedling boxes a are placed on the placing plate 87. After stacking,
A box block formed by stacking a large number of nursery boxes a is transferred to a trolley at once.

However, since the next-stage seedling-raising box a placed on the receiving plate 83 is transferred to the upper surface of the seedling-raising box a located below the receiving plate 83, it is placed on the receiving plate 83. The bottom part of the seedling raising box a may be fitted into the upper surface of the seedling raising box a stacked on the placing plate 87. When the seedling raising boxes a are horizontally moved and stacked in multiple stages as described above, The contents such as floor soil, sowing, and covering soil in a are moved to one side or scraped off, so that the seeding situation and germination conditions in the nursery box a are changed, and germination and growth are impaired. I have a problem.

In addition, the pusher 86 is reciprocated to move from the receiving plate 83 to the mounting plate.
Since the nursery box a is transferred to 87, the lift device 84 and the stacking device 88 must be temporarily stopped or slowed down until the transfer operation of one box of the nursery box a is completed.
Since the operation of stacking the nursery boxes a is performed intermittently, there is a problem that the operating rate of the entire apparatus is low.

On the other hand, there is also a reserve machine as described in JP-A-61-136820. This stacker is equipped with a rotary chain that vertically lifts upwards at the lifting position and vertically lowers at the stacking position.The transport support attached to this rotary chain makes the above-mentioned transported objects horizontal. Although it supports it, the movable claw of this transport support is too small for the width of the transported object, so it does not hinder horizontal transport of lightweight baskets, etc.
When applied to a relatively heavy seedling raising box after completion of the sowing process, there is a drawback that its support becomes unstable, and moreover, the movable claw described in the above publication, when stacking the transported objects at the stacking position,
Since the object to be transported descends while rubbing the side surface thereof, when it is applied to the stacking of the above-mentioned nursery boxes, there is a problem that the seedling conditions are varied and the adverse effects on the nursery boxes become large.

(C) Problem to be Solved by the Invention According to the first aspect of the present invention, the seedling raising boxes can be stacked while being held in a stable horizontal posture, and the receiving plate of the box holding means can be set horizontally. By stacking the seedlings at the stacking position by configuring the center of gravity to move to the state of supporting and the state of rotating wider than the size of the seedlings,
It is an object of the present invention to provide a nursery box shipping device capable of avoiding adverse effects on the nursery box, such as preventing variation in seeding conditions without rubbing the side surface of the already stacked nursery box with the above-mentioned receiving plate. .

According to the second aspect of the present invention, in addition to the object of the first aspect of the invention, the guide means is provided below the raising position for holding the operating means provided on the receiving plate, and the supporting means is horizontally supported when the receiving plate is raised. It is an object of the present invention to provide a nursery box shipping device that is configured to automatically return to a state and that can automatically return a receiving plate without providing a special drive device.

(D) Means for Solving the Problems In the invention according to claim 1 of the present invention, the continuously supplied seedling raising box is held in a horizontal position at the lifting position, and the holding of the seedling raising box is released at the stacking position. The box holding means includes a box holding means, which vertically rises upward at the raising position and vertically descends downward at the stacking position, and moves in the orbiting direction.The box holding means is provided on both sides of the majority of the nursery box. A pair of receiving plates for receiving, the receiving plate is a seedling raising device configured to move the center of gravity between a state of horizontally supporting the seedling raising box and a state of rotating wider than the dimensions of the seedling raising box. And

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, the operating means is provided on the receiving plate, while the center of gravity is moved to a rotating state below the lifting position. The present invention is characterized in that the seedling raising box shipping device is provided with a guide means for automatically returning the operating means to a horizontally supported state when the receiving plate is raised.

(E) Operation According to the invention of claim 1, the orbiting means is driven so that both sides of the half of the nursery box supplied to the lifting position are held horizontally by the receiving plates of the box holding means. , Raising the seedling raising box vertically in a horizontal position, transferring the seedling raising box from above the lifting position to above the stacking position, and vertically lowering the box holding means downward at the stacking position, while lowering the stacking position. Then, the holding of the nursery boxes is released by moving the center of gravity of the receiving plate, the nursery boxes are sequentially stacked at the stacking position from the upper side, and then the nursery boxes stacked in a predetermined number of stages are unloaded.

According to the second aspect of the present invention, the box holding means is circulated from below the stacking position to below the lifting position by driving the circling means, and the box holding means is lifted from below the lifting position to above the same position. At this time, the guide plate automatically returns the receiving plate, which has moved its center of gravity to the rotating state through the operating means of the receiving plate, to the horizontally supported state.

(F) Effects of the Invention As described above, according to the invention of claim 1, since the nursery boxes are sequentially stacked in the vertical direction while being kept in a horizontal posture, the floors in the nursery boxes are stacked during the stacking operation. It is possible to reliably prevent the stored items such as soil, sowing, and covering soil from being pushed to one side or scraped off, and to keep the seeding condition and the germination condition in the nursery box uniform.

In addition, since the nursery boxes are continuously transferred and stacked from the lifting position to the stacking position, the lift device 84 and the stacking device are temporarily stopped until the transfer operation of one nursery box is completed like the conventional device. Or, it is not necessary to slow down the speed, and the entire device can be operated continuously to shorten the time required for the work of shipping a prescribed number of nursery boxes and improve the shipping capacity, as well as lifting and stacking operations of the nursery boxes. Since a single mechanism is used, the shipping mechanism is simplified and the device can be easily manufactured.

Therefore, it is possible to stack the nursery boxes accurately.

Moreover, since both sides of the nursery box are supported by a pair of support plates, the support of the nursery box is stable, and the support plate of the box holding means supports the nursery box horizontally and the size of the nursery box. Since it is configured to move the center of gravity in a state of rotating more widely than when it is stacked, when stacking the nursery boxes in the stacking position, without rubbing the side surface of the nursery box on the already stacked side with the above-mentioned receiving plate, this result In addition, there is an effect that the adverse effect on the nursery box can be surely avoided by preventing the change of the sowing conditions.

According to the invention of claim 2 of the present invention, in addition to the effect of the invention of claim 1, when the operating means provided on the receiving plate is arranged below the raising position, the guide means is provided when the receiving plate is raised. Since it is configured to automatically return to the horizontal support state, there is an effect that the automatic return of the receiving plate can be easily performed without providing a special drive device of any complicated structure.

(G) Embodiment One embodiment of the present invention will be described in detail below with reference to the drawings.

The drawings show a nursery box shipping device for collectively transferring the nursery boxes stacked in a predetermined number of stages onto a trolley, and FIGS. 1 and 2
In the figure, this nursery box shipping device 1 was transported to a lifting position I and a first conveyor 2 for transporting a nursery box a supplied from a seeding plant (not shown) to a lifting position I at the rear end of the transport side. Box stacking device 3 that vertically raises the nursery box a and vertically lowers the nursery box a to sequentially stack at the stacking position II.
And the box blocks A stacked in a predetermined number of stacking positions
The second conveyor 4 conveys the box block A conveyed from the holding position III to the holding position III, and the box transfer device 6 collectively transfers the box block A transferred to the holding position III onto the carriage 5 waiting at the transfer position IV. It

In the first conveyor 2 described above, the belt 8 is stretched between the rollers 7, 7 axially supported at the start end and the rear end of the transfer side, and the transfer side lower surface of the belt 8 is supported by the three auxiliary rollers 9. At the same time, the belt 8 is rotated in the conveying direction B via the sprockets 11 and 12 and the drive chain 13 by the driving force of the first motor 10 arranged at the lower part of the starting end side, and the seedling raising box transferred onto the belt 8 is transferred. and a is conveyed to the lifting position I.

On the other hand, a buffer member 14 is arranged at the end of the carrying side so as to face the end surface of the seedling raising box a to be carried.

In the above-mentioned cushioning member 14, the sliding shaft 16 is inserted into and retracted from the tubular body 15 fixed so as to face the end face of the seedling raising box a.
When the seedling-raising box a to be conveyed comes into contact with the tip of the sliding shaft 16 by urging the sliding shaft 16 in the protruding direction by means of a spring or the like, the sliding shaft 16
Retreats to alleviate the impact at the time of a collision, and controls the raised seedling raising box a to the raising position I.

As shown in FIG. 3, the box stacking device 3 described above pivotally supports the sprockets 17, 17 on both lower sides of the lifting position I,
The sprocket 18, 18 is pivotally supported on both upper sides, the sprocket 19, 19 is pivotally supported on both upper sides of the stacking position II, the sprocket 20, 20 is pivotally supported on both lower sides, and the sprocket 17, which is pivotally supported on the same side, is provided. A circling chain 21 is stretched between 18, 19 and 20.

On the other hand, on the circulating chain 21 stretched on the same side, six box holders 22 are erected at a predetermined equal interval, and face each other on the circulating chains 21, 21 stretched on both sides. Te box cradle 2
2,22 are installed.

The interval between the box receiving trays 22 and 22 is set to an interval for holding the seedling raising box a.

The orbiting chain 21 described above has the sprocket 23 fixed coaxially with the sprocket 19 axially supported above the stacking position II, and the sprocket at the end of the rotary shaft 24 axially supported above the device.
25 is fixed, a driven chain 26 is stretched between these sprockets 23, 25, and a sprocket 27 fixed to one end of the rotary shaft 24 and a sprocket 29 of a second motor 28 disposed on the upper part of the device are provided. The drive chain 30 is stretched between the two, and the second motor 28 is driven to rotate the orbiting chain 21 in the orbiting direction C via the sprockets 23, 25, 27, 29 and the chains 26, 30.

That is, the seedling raising box a is supported in a horizontal posture by the box holders 22 and 22 arranged opposite to the orbiting chains 21 and 21 on both sides, and the seedling raising box a is vertically lifted upward from the lifting position I. Then, the nursery box a is horizontally moved from above the lifting position I to above the stacking position II, and the nursery box a is vertically lowered from above the stacking position II, and at the same time, a regulation plate is installed on the side of the stacking position II. 31 guides the stacking of the nursery boxes a.

The box cradle 22 described above is a circling chain stretched on the same side.
A support shaft 33 is installed on the same outer circumference of 21, 21 via brackets 32, 32, and a trapezoidal mounting plate 34 is pivotally supported at the tip of the support shaft 33.

That is, as shown in FIGS. 4 and 5, the center of the upper end of the mounting plate 34 is rotatably supported by the tip end of the support shaft 33 through the bearing 35, and the center of gravity of the mounting plate 34 is supported by the shaft. The mounting plate 34 is positioned immediately below the support shaft 33, and the mounting plate 34 is kept in a swinging position in a state of being hung below the support shaft 33 at all times.

On the other hand, at the lower part of the above-mentioned mounting plate 34, the receiving plate is provided between the supporting pieces 34a, 34a extending downward via the brackets 36, 36.
A support shaft 38 welded to the lower part of the rear side of 37 is pivotally supported to support the nursery box a in a horizontal position and a position where it is rotated wider than the lateral width of the nursery box a (position shown in phantom in FIG. 4). The receiving plate 37 is rotatably supported (movable at the center of gravity) at the position (solid line position in FIG. 4).

The receiving plate 37 described above is set to a size to receive both sides of the majority of the nursery box a. The receiving plate 37 is formed at the lower end portions of the lower plates 37a, 37a welded to the lower surface side and at both lower ends of the mounting plate 34. By the contact with the restriction pieces 34b, 34b, the rotation of the seedling raising box a is restricted to a position (solid line position) for supporting the seedling raising box a in a horizontal posture, while the guide plate 39 vertically provided below the lifting position I and the receiving plate. By contact with a guide pin 37b protruding from one side portion of 37, the seedling raising box a is pivotally returned to a position for supporting the nursery box a in a horizontal position (solid line position).

The second conveyor 4 has a plurality of rollers 40 axially supported at a stacking position II at predetermined equal intervals and a plurality of rollers 41 supported at a holding position III at predetermined equal intervals.

The rollers 40 supported on the stacking position II are rotationally driven in the transport direction D by the driving force of a built-in motor (not shown), while the rollers 41 supported on the holding position III are
By the driving force of the third motor 42 arranged on the side of the holding position III, the box blocks A stacked in a predetermined number of stages are rotated from the stacking position II by rotating in the transport direction D via the sprockets 43, 44 and the drive chain 45. The box block A is transported to the holding position III, and the position of the box block A is restricted by the restriction plate 46 installed on the side of the holding position III.

As shown in FIG. 1 and FIG. 2, the box transfer device 6 described above includes a horizontal frame 48, which is vertically arranged between two vertical frames 47, 47 hung vertically in parallel.
A movable frame 49 is constructed by installing 48, and side plates 50, 50 are fixed to both side surfaces of the upper end of the movable frame 49.
Each of the three guide rollers 51 ...
Are engaged with travel guides 52, 52 which are installed in the upper part of the apparatus at right angles to the transport direction D.

Above the central portion between the above-mentioned traveling guides 52, 52, a traveling chain 54 is stretched between sprockets 53, 53 pivotally supported at the traveling-side start end and rear end, and the end of this traveling chain 54 is stretched. Bracket 55 fixed between the side plates 50, 50 of the movable frame 49
The sprocket 57, 58 and the drive chain 5 are connected to the sprocket 57, 58 and the drive chain 5 by the driving force of the fourth motor 56 disposed on the rear end side upper part.
Rotate the traveling chain 54 in the traveling direction E via 9,
Each roller 41 supported on the holding position III ... and the transfer position IV
The movable frame 49 is stopped to move onto the carriage 5 waiting at.

A lift fork 60 formed in a comb shape is attached to the lower part of the movable frame 49 so as to be able to move up and down, and the lift fork 60 is spaced apart from the rollers 41 at the holding position III at intervals with which they are projected and retracted. Each claw portion 60a of the book is formed.

The lift fork 60 described above is a vertical frame that constitutes the movable frame 49.
A support shaft 61 is rotatably supported between the lower ends of the 47 and 47, and a lift fork 60 is connected to a lower end of an arm 62 fixed on the support shaft 61 via a link rod 63 to form a lower horizontal frame. The lift cylinder 65 is connected to the 48 via the bracket 64, and the piston rod of the lift cylinder 65 is connected to the upper end of the arm 62.
And the lift fork 60 is vertically moved up and down via the link rod 63.

Further, the guide shafts 66, 66 are vertically slidably held at the lower ends of the vertical frames 47, 47, and the lower ends of the guide shafts 66, 66 are connected and fixed to the lift forks 60, so that the lift forks 60 can be vertically moved up and down. To guide.

On the other hand, two guide shafts 67, 67 are vertically installed between the upper and lower horizontal frames 48, 48, and an elevating plate 68 is vertically movably engaged between the guide shafts 67, 67, and the elevating plate 68 is also vertically movable. A pressing plate 69 is attached to the extension side end portion of the 68 so as to face the upper surface of the box block A placed on the lift fork 60.

The elevating plate 68 described above has an elevating cylinder 70 standing upright at the center of the upper surface of the upper horizontal frame 48, and the piston rod of the elevating cylinder 70 is connected and fixed to the elevating plate 68. The plate 68 is vertically moved up and down.

That is, the lift cylinder 65 and the elevating cylinder 70 are simultaneously operated, and the lift fork 60 and the pressing plate 69 hold the upper and lower surfaces of the box block A conveyed to the holding position III.

In the dolly 5 described above, a plurality of gate frames 72 are erected at a predetermined equal interval in the length direction of the upper surface of a mounting table 71 formed in a rectangular shape, and a connecting frame 73 is provided between the upper ends of the gate frames 72. And a plurality of spacers 74 are laid in the width direction of the upper surface of the mounting table 71 to form a space into which the respective claw portions 60a of the lift fork 60 can be inserted and removed.

At the four corners of the lower surface of the mounting table 71, four casters 75 ...
2 with the casts 75 ...
It guides traveling by engaging with rails 76, 76 of the book.

At the center between the rails 76, 76, a traveling chain 78 is stretched between sprockets 77, 77 pivotally supported at the traveling-side start end and the rear end, and a fifth motor disposed at the lower rear end. 79
The driving force of causes the traveling chain 78 to rotate in the traveling direction via the sprockets 80, 81 and the drive chain 82,
An engaging portion 71a protruding from the center of the lower surface of the mounting table 71 is engaged with the traveling chain 78 to move the empty carriage 5 to be carried in to the transfer position IV, and at the same time to The carriage 5 is intermittently moved forward by the transfer pitch.

When the carriage 5 is unloaded from the transfer position IV, the mounting table 71
The engagement between the locking portion 71a protruding from the and the traveling chain 78 is released.

The illustrated embodiment is configured as described above, and
The shipping operation of the nursery box shipping device 1 will be described.

First, as shown in FIG. 1, the 1st conveyor 2 is driven and the nursery box a supplied from a seeding plant (not shown).
The box stacking device 3 is sequentially conveyed to the lifting position I, and the majority of the nursery boxes a conveyed to the lifting position I are driven by the receiving plates 37 and 37 of the pair of box receiving trays 22 and 22 facing each other. Stable support in a horizontal position, and then vertically upwards.

That is, the pair of box receiving trays 22, 22 facing each other vertically from below the lifting position I is vertically lifted, and the majority of the seedling raising box a conveyed to the lifting position I is attached to the box receiving trays 22, 22. , 37 to stably support the nursery box a in a horizontal posture, and vertically raise the seedling raising box a above the lifting position I in the receiving posture.

Next, the vertically raised seedling box a is horizontally moved from above the lifting position I to above the stacking position II, and is moved to the stacking position II.
Vertically lower the nursery box a from above to below the stacking position.
The rollers 40 supported on the II are sequentially stacked on each other.

At this time, as shown in FIG. 3, the seedling raising box a to be stacked in the next stage is the receiving plate 3 of the box holders 22 and 22 for supporting the seedling raising box a.
The upper end of the lower surface of 7,37 and the upper corner of the seedling-growing box a stacked in one step or a large number of steps come into contact with each other so that the box receiving trays 22 and 22 are wider than the lateral dimension of the seedling-raising box a. Since the plates 37, 37 are lowered while being rotated, the next-stage seedling-raising box a is sequentially stacked on the uppermost-stage seedling-raising box a stacked at the stacking position II,
The side surfaces of the nursery box a are not rubbed by the receiving plates 37, 37.

On the other hand, the pair of box pedestals 22 and 22 return to move below the stacking position II to below the lifting position I, and as shown in FIG. The slanted surface of the guide plate 39 that extends downward and the guide pin 37b that protrudes from the receiving plate 37 of the box receiving base 22 contact as shown in FIG. Board
37 (see the phantom line position in FIG. 4) is pivotally returned to the position (see the solid line position in FIG. 4) that supports the nursery box a in a horizontal position, and the center of gravity of this receiving plate 37 is inside the spindle 38. , The return position (solid line position) is maintained, and the seedling raising box a conveyed to the lifting position I is supported in a horizontal posture by the pair of box supporters 22 and 22 and vertically lifted upward.

Next, when the seedling raising boxes a are stacked on the rollers 40 at the stacking position II by a predetermined number of stages, the second conveyor 4 is driven to convey the box blocks A stacked by the predetermined number of stages from the stacking position II to the holding position III. Then, as shown in FIG. 2, the lift cylinder 65 and the elevating cylinder 70 of the box transfer device 6 are operated to hold the box block A conveyed to the holding position III by the lift fork 60 and the pressing plate 69. Together with the holding position III
From the above, the box block A is horizontally moved to the transfer position IV, and the box block A is collectively transferred to the transfer position IV on the right upper surface of the carriage 5 stopped.

In the same manner as described above, the box block A to be conveyed next is clamped and transferred to the left upper surface of the carriage 5, and the box blocks A and A are transferred to the left and right upper surfaces of the carriage 5 to move the fifth motor. 79 is driven to move the trolley 5 forward by one transfer pitch, and the box block A is transferred from the front side of the trolley 5 to the left and right upper surfaces, respectively. And then supplied to a germination plant (not shown) for germination treatment.

Since the seedling raising boxes a are stacked vertically in this way while being kept in a horizontal posture,
It is possible to reliably prevent the floor soil, seeds, and cover soil stored in the seedling raising box a from being pushed to one side or scraped off, and to keep the seeding condition and germination conditions in the seedling raising box a uniform. .

In addition, since the nursery boxes a are continuously transferred and stacked from the lifting position I to the stacking position II, the entire apparatus is continuously operated to shorten the time required for the loading work of a predetermined number of the nursery boxes a and A box stacking device 3 capable of improving the ability and lifting and stacking the seedling raising box a
This simplifies the shipping mechanism and facilitates the manufacture of the device.

Moreover, a pair of receiving plates 37 are provided on both sides of the majority of the nursery box a.
Since the holding of the nursery box a is stable, the receiving plate 37 of the box holding means (see box receiver No. 22) supports the nursery box a horizontally and is wider than the size of the nursery box a. Since it is configured to move the center of gravity to the state of rotating in the state of rotating, when stacking the nursery boxes a in the stacking position, the above-mentioned receiving plate 37 does not scrape the side surface of the nursery box a on the already stacked side, and as a result, In addition, there is an effect that it is possible to surely avoid an adverse effect on the seedling raising box a, for example, by preventing a change in seeding conditions.

Furthermore, the operating means (guide pin 37b) provided on the receiving plate 37
Since the guide means (see the guide plate 39) arranged below the lifting position is configured to automatically return to the horizontal support state when the receiving plate 37 is raised, it is possible to provide a special drive device having no complicated structure. The effect that the automatic return of the receiving plate 37 can be easily executed is provided.

In the correspondence between the configuration of the present invention and the above-described embodiment, the box holding means of the present invention corresponds to the box cradle 22 of the embodiment, and similarly, the circulation means corresponds to the recovery chain 21, The operation means corresponds to the guide pin 37b and the guide means corresponds to the guide plate 39, but the present invention is not limited to the configuration of the above-described embodiment.

[Brief description of drawings]

FIG. 1 is a side view showing a nursery box shipping device of the present invention, FIG. 2 is a side view of a box transfer device, FIG. 3 is a front view of a stacking side of the box stacking device, and FIG. 4 is a side view of a box cradle. Fig. 5 is a front view of a box cradle, and Fig. 6 is an enlarged side view of essential parts showing a conventional nursery box shipping device. I ... Lifting position, II ... Stacking position a ... Nursery box, 21 ... Orbiting chain 22 ... Box support, 37 ... Support plate 37b ... Guide pin, 39 ... Guide plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naoyuki Tahara 66 Takaoka-cho, Matsuyama City, Ehime Prefecture Ishii Industry Co., Ltd. (56) References JP 61-136820 (JP, A) JP 59-69320 ( JP, A)

Claims (2)

[Claims] 1. A box holding means (22) for holding a continuously fed seedling raising box (a) in a horizontal position at a lifting position and releasing the holding of said seedling raising box (a) at a stacking position, said box. The holding means (22) is provided with a circling means (21) that vertically rises upward at a lifting position and vertically descends downward at a stacking position, and the box holding means (22) is a nursery box (a). Has a pair of receiving plates (37) for receiving both sides of the upper half, and the receiving plate (37) rotates in a state of horizontally supporting the nursery box (a) and wider than the size of the nursery box (a). A nursery box shipping device configured to move the center of gravity depending on the condition. 2. The operating means (37b) is provided on the receiving plate (37), while the operating means (37b) whose center of gravity has moved to a rotating state is moved below the lifting position when the receiving plate (37) is raised. The nursery box shipping device according to claim 1, further comprising guide means (39) for automatically returning to a horizontally supported state.