JPH07106784B2 - Nursery box shipping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention is for transferring a seedling raising box, which has been subjected to seeding treatment such as bed soil, seeding, and covering soil in a seeding plant, to a carriage. The present invention relates to a nursery box shipping device used.

(B) Conventional technology As the above-mentioned seedling raising box shipping device, for example, a seedling raising box shipping device already developed by the applicant (Japanese Patent Application No. 2-36).
880).

As shown in FIG. 2, this device drives the box stacking device 4 to hold the seedling-raising box a conveyed to the lifting position I in a horizontal posture by the pair of left and right box receiving bases 3, 3. After rotating the box cradle 3, 3 from the lifting position I to the stacking position II to sequentially stack the nursery boxes a, the box blocks A stacked for a predetermined number are conveyed to the holding position III, and the box transfer device 8 is driven. Then, the box block A is transferred to the cart 7 waiting at the shipping position IV.

(C) Problems to be Solved by the Invention However, as shown in FIG. 6, the above-mentioned box receiving base 3 pivotally supports a supporting shaft 20b fixed to the orbiting chain 20 as a supporting point. Therefore, when transporting a predetermined number of stacked box blocks A to the holding position III, when the box stacking device 4 is temporarily stopped and transported, a pair of left and right box pedestals 3, 3 are moved in the front-rear direction due to a recoil generated at the time of stop. In the nursery box a, the stored items such as floor soil, seeding, and soil in the nursery box a that are rocked and kept horizontal are displaced to one side or part of the stored items flow out from the nursery box a. Since the seeding condition and germination conditions of the seedlings may vary, it is necessary to correct and replace the flattened contents in the seedling raising box a when starting the next stacking operation. The holding position and posture of the box a must be corrected, and the shipping capacity of the nursery box a It has a problem of a decrease.

In view of the above problems, the present invention provides a posture regulating means for regulating the nursery boxes on the box cradle in a horizontal posture, so that the seeding states and germination conditions in the nursery boxes can be aligned and stacked while being kept uniform. The purpose of the present invention is to provide a nursery box shipping device that can perform shipping operations smoothly.

(D) Means for Solving Problems The present invention regulates the circling posture of the box cradle in a circling path of the box cradle that circulates from the lifting position to the stacking position so as to hold the nursery box in a horizontal posture. The present invention is characterized in that it is a seedling raising and loading device provided with a posture regulating means.

(E) Action The present invention holds the nursery boxes transported to the lifting position in a horizontal posture by the pair of left and right box cradle, and circulates the box cradle from the lifting position to the stacking position to sequentially raise the nursery boxes vertically. By stacking and circling the nursery boxes on the box cradle by the posture regulating means in a horizontal posture and circling, the box cradle holding the nursery boxes can be moved in the front-back direction when the box blocks A stacked for a predetermined number are transported. To prevent it from swinging.

(F) Effect of the Invention According to the present invention, since the seedling raising box on the box cradle is regulated in the horizontal posture and is circulated, during transport of the box block,
It is possible to prevent the box cradle from swinging due to the reaction that occurs when the device is started or stopped, and the soil contained in the nursery box kept in a horizontal state, seeding, soiled items, etc. are displaced to one side, It is possible to reliably prevent a part of the stored items from flowing out, and because they can be vertically aligned and stacked while maintaining uniform seeding conditions and germination conditions in the seedling raising box, the seedling raising box There is no need to modify the holding position and holding posture, and the work of shipping the nursery boxes can be carried out smoothly.

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

The drawing shows a nursery box shipping device for stacking a predetermined number of nursery boxes and transferring them to a trolley. In Fig. 2 and Fig. 3, this nursery box shipping device 1 is supplied from a seed plant or the like (not shown). The first conveyor 2 that conveys the seedling raising box a to the lifting position I and the seedling raising box a that is conveyed to the lifting position I are held horizontally by a pair of left and right box receiving trays 3, 3, and these box receiving trays 3, 3. A box stacking device 4 for sequentially stacking the nursery boxes a in a vertical direction by going around from the lifting position I to the stacking position II, and a pair of left and right box cradle 3 in a posture for holding the nursery boxes a in a horizontal posture,
Attitude control mechanism 5 for guiding the orbit of 3; second conveyor 6 for transporting a predetermined number of box blocks A from stacking position II to holding position III; and transfer of box block A transferred to holding position III It is composed of a box transfer device 8 that collectively transfers to a trolley 7 standing by at a position IV.

The first conveyor 2 is constructed such that the belt 10 is stretched between the rollers 9 and 9 which are rotatably supported at the start end and the rear end on the conveying side, and the driving force of the first motor 11 disposed below the start end causes the sprocket to move. 1
The belt 10 is conveyed in the conveying direction B via the 2, 13 and the drive chain 14.
Then, the seedling raising box a transferred on the conveying surface is conveyed to the lifting position I, and the cushioning member 15 arranged in front of the lifting position I regulates the position of the seedling raising box a.

As shown in FIGS. 1 and 4, the box stacking device 4 described above pivots the sprockets 16, 16 on both sides of the lifting position I and the sprockets 17, 17 on both sides of the stacking position II. On both sides from the lifting position I to the stacking position II. The chain-shaped guides 18, 18 are erected, and the orbiting guides 19, 19 are erected along the outer peripheral surfaces of the chain guides 18, 18, and the sprocket 16, 17 and the chain guide 18 pivotally supported on the same side are used for orbiting. Chain 20 is stretched.

On the other hand, six box holders 3 are erected on one side of the orbiting chain 20 at predetermined equal intervals, and both sides of the orbiting chain are
Box holders 3 and 3 are installed on 20 and 20 opposite to each other.

The orbiting chain 20 described above is coaxial with the sprockets 17, 17 pivotally supported on both sides of the stacking position II.
And the sprocket 23, 23 is fixed to both ends of the rotary shaft 22 which is rotatably supported on the lower part of the second conveyor 6, and the driven chain 24 is stretched between the sprocket 21, 23 rotatably supported on the same side. .

On the other hand, the sprocket 25 is fixed to one end of the rotary shaft 22 pivotally supported on the lower part of the second conveyor 6, and the sprocket 27 is fixed to one end of the rotary shaft 26 pivotally supported above the stacking position II. The driven chain 28 is stretched between the sprockets 25 and 27, and is driven between the sprocket 29 fixed to one end of the rotary shaft 26 and the sprocket 31 of the second motor 30 disposed on the upper part of the device. Stretch the chain 32 to the second motor
The driving force of 30 rotates the orbiting chain 20 in the orbiting direction C via the sprockets 21, 23, 25, 27, 29, 31 and the chains 24, 28, 32.

That is, the lifting position I
While holding the seedling raising box a conveyed in a horizontal position, the box holders 3, 3 are moved from the lifting position I to the stacking position II to stack the seedling raising boxes a vertically, and at the rear of the stacking position II. The erected stacking guide 33 regulates the stacking position of the nursery box a.

As shown in FIG. 4, the box receiving base 3 described above has a trapezoidal mounting plate 34 formed by welding a support shaft 20b to an end of a bracket 20a fixed in the width direction of the outer peripheral surface of the circulating chain 20. A cylindrical portion 34a is projected at the upper end on the back side, and the supporting shaft 20b fixed to the orbiting chain 20 is inserted into the protruding cylindrical portion 34a of the mounting plate 34 through a bearing 35, and the supporting shaft 20b is centered. As such, the mounting plate 34 is pivotally supported.

On the other hand, support pieces 34b, 34b formed at both lower ends of the mounting plate 34
Fix the brackets 36,36 to the
Into, the both ends of the support shaft 38 welded to the lower end of the back side of the receiving plate 37 are inserted, and the guide plate welded to both lower ends of the receiving plate 37.
37a, 37a and a regulating member 39 fixed to the lower end on the back side of the mounting plate 34 are brought into contact with each other to regulate the rotation of the receiving plate 37 to an inner position for holding the nursery box a in a horizontal posture, and The guide arm 40 protrudingly provided on the back side of the 37 and the guide member 41 obliquely provided from the stacking position II to the lifting position I are slidably contacted,
The receiving plate 37 is pivotally returned to the inner position for holding the nursery box a in a horizontal position.

As shown in FIGS. 1 and 4, the posture regulating mechanism 5 described above is a circulation path that faces the outer peripheral surface of the cylindrical portion 34a projecting from the mounting plate 34, and is located above the lifting position I on both sides. Sprocket 42, 42 is rotatably supported on the upper part of the stacking position II, sprocket 43, 43 is rotatably supported on both upper sides of the stacking position II, and arcuate chain guides 44, 44 are supported on both upper side parts from the lifting position I to the stacking position II. And sprocket 42,43 installed on the same side
A guide chain 45 is installed on the chain guide 44, and as shown in FIG. 2, a sprocket 43 axially supported above the stacking position II and a sprocket 46 fixed coaxially therewith.
The driven chain 48 is stretched between the sprocket 47 fixed to both ends of the rotary shaft 26 at the top of the device, and the second motor 30
Drive force rotates the guide chain 45 in the circumferential direction C via the sprockets 29, 31, 46, 47 and the chains 32, 48.

That is, when the box receiving base 3 is rotated from the lifting position I to the stacking position II, the sprocket 49 fixed to the box receiving base 3 and the guide chain 45 engage with each other, and the sprocket 49 moves along the chain guide 44. The box cradle 3 is rotated while revolving around its axis to hold the nursery box a in a horizontal position.
Regulates the orbiting attitude of.

On the other hand, two lifting guides are provided on both sides of the lifting position I and the stacking position II at intervals corresponding to the lateral width of the box receiving stand 3.
50 and 50 are installed in parallel in the vertical direction, and these lifting guides 5
Guide the ascending and descending of the box cradle 3 by 0,50.

The above-mentioned second conveyor 6 has a plurality of rollers 51, which are shorter than the lateral width of the nursery box a at the stacking position II and are axially supported at a predetermined equal interval, and at the holding position III, has a length corresponding to the lateral width of the nursery box a. A plurality of rollers 52 are supported at regular intervals.

The rollers 51 and 52 described above rotate in the conveying direction D through the sprockets 54, 55 and 56 and the chains 58 and 59 by the driving force of the third motor 53 arranged on the side of the holding position III, and the predetermined number of rollers. Stacked box blocks A from stacking position II to holding position II
The box block A is transported to I and the position of the box block A is regulated by a regulation plate 60 installed in front of the holding position III.

As shown in FIG. 3, the box transfer device 8 described above has side plates 62 and 62 fixed to both upper end portions of an H-shaped movable frame 61, and the side plates 62 and 62 are provided with opposed shafts, respectively. The three supported guide rollers 63 are engaged with traveling guides 64, 64 which are installed on the upper part of the apparatus at right angles to the transport direction D.

Above the center between the traveling guides 64, 64, a traveling chain 66 is stretched between sprockets 65, 65 pivotally supported at the traveling-side start end and rear end, and the end of the traveling chain 66 is stretched. Is fixed to the upper end of the movable frame 61, and the traveling chain 66 is moved in the traveling direction E via the sprockets 68, 69 and the driving chain 70 by the driving force of the fourth motor 67 arranged on the upper portion of the rear end side. Rotate the movable frame 61 between the holding position III and the transfer position IV.
Stop moving.

A support shaft 71 is rotatably supported on the lower end of the movable frame 61,
At the lower end of the arm 72 fixed to this support shaft 71, the link rod 73
Via a lift fork 74 formed in a comb shape, and a lift cylinder 75 hung vertically below the movable frame 61.
The piston rod is connected to the upper end of the arm 72, and the lift cylinder 75 is actuated to move the lift fork 74 vertically through the arm 72 and the link rod 73.

On the other hand, guide shafts 76, 76 are vertically installed on the movable frame 61,
An elevating plate 77 is vertically movably engaged between the guide shafts 76, 76, and the extension side end of the elevating plate 77 faces the upper surface of the box block A placed on the lift fork 74. And a pressing plate 78 is attached.

The lift plate 77 described above connects and fixes the piston rod of the lift cylinder 79 standing upright on the upper part of the movable frame 61 to the lift plate 77, and lifts the lift plate 77 in the vertical direction by the operation of the lift cylinder 79.

That is, the lift cylinder 75 and the elevating cylinder 79 are simultaneously operated, and the lift fork 74 and the pressing plate 78 hold the gripping position.
Hold the upper and lower surfaces of the box block A transported to III.

In the dolly 7 described above, four casters 81 ...
Is engaged with two rails 82, 82 laid on the traveling surface to guide the traveling.

At the center between the rails 82, 82, a traveling chain 84 is stretched between sprockets 83, 83 pivotally supported at the traveling-side start end and the rear end, and a fifth motor disposed at the lower rear end. The driving force of 85 rotates the traveling chain 84 in the traveling direction E through the sprockets 86, 87 and the driving chain 88, and
By engaging the locking portion 89 protruding on the lower surface side of 80 and the traveling chain 84, the next carriage 7 is moved to the transfer position IV, and the carriage 7 is carried out from the transfer position IV. The engagement between the locking portion 89 protruding from the mounting table 80 and the traveling chain 84 is released.

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

First, as shown in FIG. 2, the box stacking device 4 is driven to hold the seedling raising box a conveyed to the lifting position I in a horizontal posture by the pair of left and right box holders 3, 3, and Raising and lowering guides 50, 50 installed on both sides above the seedling raising box a
The pair of left and right box trays 3 and 3 are regulated in the horizontal posture to keep the seedlings in a horizontal posture, and the pair of left and right box trays are moved from the lifting position I to the stacking position II while keeping the seedling raising box a in the horizontal posture. Orbiting tables 3,3.

Next, as shown in FIG. 1, the pair of left and right box pedestals 3, 3 are circulated along the outer peripheral surfaces of the upper portions of the chain guides 44, 44, and the sprocket 49, 3 fixed to these box pedestals 3, 3.
49 and the guide chain 4 suspended on the chain guides 44, 44
5, 45 and 5 are engaged with each other, and the sprocket 49 revolves along the outer peripheral surface of the chain guide 44 while revolving around its own axis to keep the seedling-raising box a in a horizontal position, so that the circling position of the box cradle 3 is changed. regulate.

Next, lift guides installed on both sides above the stacking position II.
50, 50 regulate the descending posture of the pair of left and right box cradle 3, 3 in a posture for holding the nursery box a in a horizontal posture, and vertically align the nursery box a on the second conveyor at the stacking position II. Stack up.

Next, the second conveyor 6 is driven to move the box block A in which a predetermined number of seedling raising boxes a are stacked from the stacking position II to the holding position.
After transferring to III, as shown in FIG.
Is driven to hold the box block A conveyed to the holding position III by the lift fork 74 and the pressing plate 78, and the box block A is horizontally moved from the holding position III to the transfer position IV to move the box block A. Is transferred to the carriage 7 waiting at the transfer position IV.
Similarly, the trolley 7 is moved forward by one transfer pitch to transfer a predetermined number of box blocks A, the trolley 7 is unloaded from the transfer position IV, and the next trolley 7 is transferred to the transfer position IV. And carry out the work for shipping the nursery box a.

In this way, since the circling postures of the pair of left and right box receiving trays 3, 3 are regulated in such a posture that the seedling raising box a is regulated in the horizontal posture, the recoil that occurs when the box stacking device 4 is started or stopped causes a pair of left and right box receiving trays. It is possible to prevent the pedestals 3 and 3 from swinging in the front-rear direction, and prevent stored items such as floor soil, sowing, and soil in the seedling raising box a from shifting to one side or a part of the stored items flowing out. Since it can be surely prevented and can be vertically aligned and stacked while keeping the seeding condition and the germination condition in the seedling raising box a uniform, the holding position and the holding posture of the seedling raising box a can be corrected at the time of stacking. There is no need, and the work of shipping the nursery box a can be carried out smoothly, and the work efficiency can be improved.

In the correspondence between the configuration of the present invention and the above-described embodiment, the attitude regulating means of the present invention is a chain guide 44, a guide chain 45, a sprocket 49, and a lifting guide 50 which constitute the attitude regulating mechanism 5 of the embodiment. And a small diameter gear 90 described later,
Although it corresponds to the large-diameter gear 91, the present invention is not limited to the configuration of the above-described embodiment.

For example, as shown in FIG. 5, a small-diameter gear 90 is fixed to the above-mentioned box receiving base 3, and a large-diameter gear 91 is rotatably supported at an upper middle portion between the lifting position I and the stacking position II. The small-diameter gear 90 and the large-diameter gear 91 of the box pedestal 3 that rotates from the lifting position I to the stacking position II by rotating 91 in the circumferential direction C by the driving force of a drive motor or the like (not shown) meshes with each other. By rotating the small diameter gear 90 on the outer periphery of the large diameter gear 91 while revolving, the difference in the number of teeth between the small diameter gear 90 and the large diameter gear 91 causes
The circling posture of the box cradle 3 is restricted to a posture for holding the nursery box a in a horizontal posture, and it is possible to reliably prevent the box cradle 3 from swinging due to a reaction generated at the time of starting or stopping,
The same effect as that of the above-described embodiment can be obtained.

[Brief description of drawings]

 1 shows an embodiment of the present invention, FIG. 1 is an enlarged side view showing a posture regulating mechanism, FIG. 2 is a block stacking side configuration diagram of a nursery box shipping device, and FIG. 3 is a box shipping of a nursery box shipping device. Side configuration diagram, FIG. 4 is an enlarged front view showing a box stacking device, FIG. 5 is a configuration diagram of an attitude regulating mechanism showing another embodiment, and FIG. 6 is an enlarged front view showing a conventional box cradle. . I ... Lifting position, II ... Stacking position a ... Nursery box, 1 ... Nursery box shipping device 3 ... Box cradle, 5 ... Posture control mechanism 44 ... Chain guide, 45 ... Guide chain 49 ... Sprocket, 50 ... Lift guide

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI technical display location B65G 57/14 (56) References JP 61-136820 (JP, A) JP 61- 111229 (JP, A) JP 63-71025 (JP, A) JP 3-243525 (JP, A) JP 60-153330 (JP, A)

Claims (1)

[Claims] 1. A nursery box to be transported to a lifting position is held in a horizontal posture by a pair of left and right box cradle, and the box cradle is rotated from the raised position to a stacking position to keep the nursery box in a horizontal posture. A seedling raising box unloading device for stacking a predetermined number of sheets at a stacking position to perform a loading process, and an attitude regulating means for controlling the circling posture of the box cradle in a posture for holding the nursery cub in a horizontal posture in a circling path of the box cradle. A nursery box shipping device equipped with.