JPH0558456A - Seedbed box stacking device - Google Patents

Abstract

PURPOSE:To prevent a lean and a drop of a seedbed box and to make upper step claws and lower step claws function securely. CONSTITUTION:A frame body 3 presenting a rectangular frame form is provided at the upper position of the starting end of a seedbed box transfer stand 2 to transfer seedbed boxes. Vertical supports 9 to form a stepwise loading space 8 in which seedbed boxes A can be loaded are provided at the four corners of the frame body 3. At the lower side of the stepwise loading space 8, a pair of the front and the rear, or the left and the right upper claws 15, and a pair of lower step claws 16 are provided. The pair of the upper step claws 15 are formed by sloping the claw members 54 so as to be gradually lower towards the tips.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling raising box stacking and supplying device.

[0002]

2. Description of the Related Art JP-A-3-63928, which is the prior application of the present application
In the specification, a frame body having a horizontal rectangular frame shape is provided above the starting end portion of a nursery box transfer table for transferring the nursery box, and a stacking space capable of accommodating the nursery box is formed at four corners of the frame body. It has been proposed that a vertical column is provided and an upper claw and a lower claw are alternately provided below the stacking space to supply the seedling raising boxes downward one by one.

[0003]

In the above-mentioned prior application, the lower claw is retracted while the upper claw supports the second seedling raising box from the lowermost stage and the lower claw supports the lowermost seedling raising box. No 1
Only the individual nursery boxes are supplied to the transfer table, and then the upper claws are retracted with the lower claws protruding so that the lowermost claws can be supported by the lower claws. At the same time, there is a problem that the nursery box may fall without tilting.

[0004]

Therefore, according to the present invention, a frame body 3 having a lateral quadrangular frame shape is provided above the starting end portion of the nursery box transfer table 2 for transferring the nursery box A, and the frame body 3 is provided at four corners of the frame body 3. A vertical column 9 is provided which forms a stacking space 8 capable of accommodating the nursery boxes A, and the front and rear or left and right of the stacking space 8 are alternately inserted and removed to feed the nursery boxes A one by one downward. A pair of upper claws 15 and a lower claw 16 are provided, and the pair of upper claws 15 is formed by inclining the claw portion 54 so that the claw portion 54 is gradually lowered toward the tip. It is what

[0005]

An embodiment of the present invention will be described with reference to the drawings.
1 is a seedling raising box stacking / supplying device according to the present invention, which is a seedling raising box A
Is supplied to the starting end of the well-known seedling raising box transfer table 2. The nursery box A is formed of a synthetic resin or the like into a drawer-shaped square box having an open top. The seedling raising box transfer table 2 has a transfer device for transferring the seedling raising box A, and a soil supply device, a seeding device, a watering device, etc. are provided in whole or in part above the transfer table 2. The seedling raising box stacking and supplying device 1 is fixedly mounted on the upper part of the starting point portion side of the seedling raising box transfer table 2.

Reference numeral 3 is a frame body of the seedling raising box stacking and supplying apparatus 1, and includes a front frame 4 and a rear frame 5 in the left-right direction,
It is formed so as to have a rectangular frame shape in plan view composed of the left frame 6 and the right frame 7 in the front-rear direction. At the four corners of the frame body 3, four vertical columns 9 that form a stacking space 8 in which the seedling raising boxes A can be stacked are erected. The vertical columns 9 are for the frames 4, 5,
The vertical columns 9 on the working side, which are detachably attached to 6 and 7, are formed to have a low height to facilitate the insertion of the seedling raising box A, but the position of the low vertical columns 9 is changed. As a result, it is possible to insert the nursery box from any side of the nursery box transfer table 2 according to the working environment, thereby improving workability.

Reference numeral 10 is a guide body provided inside the vertical support 9, and although not shown, it is attached to the vertical support 9 such that the position thereof can be adjusted with respect to the vertical support 9 according to the size of the nursery box A. The size of the stacking space 8 of the seedling raising box stacking supply device 1 is adjusted. Reference numeral 11 is a motor box containing a motor, 12 is a cam box containing a cam disk 13 or the like that is rotated by the motor, 14 is a link box containing a link mechanism,
Reference numeral 5 is a pair of upper and lower claws provided on the front and rear frames 4 and 1.
Reference numeral 6 is the lower claw.

Next, the feeding mechanism of the seedling raising box A will be described in detail. FIG. 2 is a sectional view of the cam box 12, in which the output shaft 17 of the motor in the left-right direction is projected into the box 12. A disk-shaped cam disk 13 orthogonal to the output shaft 17 is fixed to the output shaft 17 of the motor, and the cam disk 13 has an upper projection 18 parallel to the output shaft 17.
And a lower stage projection 19 is provided. Upper and lower projections 18, 1
9 are provided on the front and back of the cam disk 13 in a diagonal line.
Reference numeral 20 denotes an L-shaped upper stage link that swings around a shaft 21 by engaging with the upper stage projection 18, and a rear end of a rod 22 extending forward is connected to one end thereof. Reference numeral 23 denotes a lower stage L-shaped link which swings around a shaft 24 by engaging with the lower stage projection 19, and a rear end of a rod 25 extending forward is connected to one end thereof. The rods 22 and 25 are urged rearward (to the right in FIG. 2) by springs or the like.

The shafts 21, 24 are the L-shaped links 20,
The shafts 21 and 24 are fixedly connected so as to swing together with the shaft 23.
The other end side of the penetrating through the rear frame 5 is pivotally supported on the left frame 6 side. The levers 26 and 27 are respectively fixed to the shafts 21 and 24 penetrating the inside of the rear frame 5, and the rotation ends of the levers 26 and 27 are located at the middle of the moving shafts 28 and 29 extending in the front-rear direction. Formed connecting pins 30, 3
Lock 1

Both ends of the moving shafts 28 and 29 are supported by the rear frame 5 so as to be movable back and forth, and the front end of the moving shaft 28 is projected forward from the rear frame 5. Of the pair of front and rear upper claws 15, the rear one is detachably fixed to the front protrusion. The upper claw 1
Reference numeral 5 denotes a claw portion 5 that protrudes forward from the lower edge of the mounting plate 53 that is substantially vertical.
4 is formed integrally or separately, and the claw portion 54 is formed so as to be inclined with respect to the attachment plate 53 so as to become lower toward the tip. Preferably, the pair of front and rear upper claws 15 are formed so as to incline toward the central position X of each claw portion 54, and when the seedling raising box A falls from the upper claws 15, it is expected to have an action of guiding to the central position. is doing. In addition, the upper claw 1
5 engages with and supports the lower surface of the collar portion 33 of the nursery box A,
Depending on the shape and height position of the collar portion 33, the upper claw 15
Various shapes are prepared so that the shape and relative height position of itself can be changed, and the portion of the mounting plate 53 is detachably fixed to the tip of the moving shaft 28 by a desired means such as a screw 32. And replace them as appropriate.

The front projection of the moving shaft 29 becomes the lower claw 16, which is the seedling raising box A.
Since it only engages with the bottom portion 34 of the above, it need only be formed into a round bar shape as it is, and it is not necessary to make it detachable like the upper claw 15. That is, the distance between the upper claw 15 and the lower claw 16 is changed according to the height of the nursery box A by replacing the upper claw 15.

The front ends of the rods 22 and 25 pass through the inside of the right frame 7 and the rotary link 3 inside the link box 14.
5, and 36 are respectively connected to the tips. Reference numerals 37 and 38 denote rotary shafts fixed to the rotary links 35 and 36, and the other ends thereof penetrate the inside of the front frame 4 and are pivotally supported on the left frame 6 side as with the shafts 21 and 24. The levers 39 and 40 are respectively fixed to the rotating shafts 37 and 38 penetrating the front frame 4, and the connecting ends 43 of the moving shafts 41 and 42 in the front-rear direction are attached to the rotating ends of the levers 39 and 40, respectively. , 44 are locked. The movable shafts 41, 42 are rotatably supported by the front frame 4 so as to be movable back and forth, and the front of the pair of front and rear upper claws 15 is attached to the rearward protruding portion of the movable shaft 41 like the movable shaft 28. The rearward projecting portion of the moving shaft 42 is formed in a round bar shape like the moving shaft 29, and constitutes the front lower step claw 16 of the pair of front and rear lower step claws 16.

Reference numeral 45 denotes a seedling raising box detecting portion provided at the front position of the left frame 6, and is composed of a rotating lever 46, a spring 47, and a switch 48. When the seedling raising box detecting unit 45 supplies the seedling raising box A from the seedling raising box stacking and supplying device 1 onto the transfer belt 49 of the seedling raising box transfer stand 2, the rotation lever 46 contacts the seedling raising box A and resists the spring 47. And turn to switch 4
8 is turned on, the nursery box A is transferred to the front, and when it passes through the nursery box detecting section 45 as shown in FIG. 6, it is turned off. In addition, the nursery box detecting unit 45 is adjustable in front and rear mounting position,
Although the details will be described later, this makes it possible to finely adjust the supply timing of the subsequent nursery boxes A that are continuously supplied.

Thus, in FIG. 2, the cam box 1
In the vicinity of the cam disk 13 inside 2, the rotating lower projection 1
Attach the switch 51 that comes into contact with 9 and turns on. The switch 48 and the switch 51 are the motor box 1
It controls the motor in 1 on and off. Basically,
When the switch 48 is off without detecting the nursery box A, the motor is rotated, the nursery box A is supplied onto the transfer belt 49, and the rotation of the cam disk 13 causes the lower stage projection 19 to switch to the switch 5.
When it contacts 1, the motor is stopped. Reference numeral 52 denotes a nodal member, which prevents excessive rotation due to inertia after the power supply to the motor is stopped by engaging with the upper protrusion 18 as shown in FIG. The upper and lower claws 15 and the lower claws 16 move in and out in the front-rear direction in this embodiment, but may be in the left-right direction.

[0015]

The present invention is constructed as described above, and the vertical columns 9 are erected at the four corners of the frame body 3, and the seedling-raising box A is placed in the stacking space 8 formed by the vertical columns 9 from the lower vertical column 9 side. When fed in the stacked state, the lowermost seedling raising box A engages with the upper stage nails 15 and is placed, and when the whole power is turned on in this state, the seedling raising box A is placed on the transfer belt 49 at the start end of the seedling raising box transfer table 2. Since the seedling raising box A is not present in the switch 48, the switch 48 does not detect the seedling raising box A, so that the motor is immediately energized and the cam disk 13 rotates counterclockwise in FIG.

Then, first, the lower stage projection 19 engages with the lower stage L-shaped link 23 to rotate the lower stage L-shaped link 23, the shaft 24 rotates clockwise, and the lever 2 fixed to the shaft 24.
7 also rotates to move the moving shaft 29 rearward to retract the rear lower claw 16 and at the same time, the front lower claw 16 moves the rod 25, the rotation link 36, the rotation shaft 38 and the lever 40.
Move forward through and retract as well. (Note that
In this operation, since the seedling raising box A is not present on the lower stage nail 16 at the start of the work, it will be empty, but during continuous work, the lower stage nail 16 is retracted so that the seedling raising box A is transferred to the transfer belt 49.
Only one is dropped and supplied. )

When the cam disk 13 is further rotated by the rotation of the motor, the lower L-shaped link 23 separates from the lower projection 19 and returns, and the lower claw 16 projects. This time, the upper projection 18 is L-shaped upper link. 20 to rotate the shaft 2
1 rotates clockwise, and the lever 26 fixed to the shaft 21 also rotates to move the moving shaft 28 rearward. At the same time, the moving shaft 4 moves.
1 also moves forward through the rod 22, the rotary link 35, the rotary shaft 37, and the lever 39, the moving shaft 28 and the moving shaft 41 are retracted at the same time, and the moving shaft 28 and the moving shaft 4 are
The upper claws 15 fixed to the tip of 1 are detached from the collar portion 33 of the lowermost seedling raising box A, and the seedling raising box A falls downward. At this time, since the lower lower claw 16 has already protruded inward as described above, the lower lower claw 16 is not directly dropped onto the transfer belt 49 but is once placed on the lower claw 16.

However, since the motor is still rotating, the cam disk 13 rotates, the L-shaped upper link 20 separates from the upper protrusion 18 and returns, and the upper claw 15 also protrudes inward to start from the lowermost stage. It engages with the collar portion 33 of the second seedling raising box A, and in this state, the lower stage projection 19 abuts the switch 51, and the power to the motor is cut off. However, since this state is the same as the above at the time of starting, the transfer belt 49 does not have the seedling raising box A and the switch 48 is off. Therefore, the motor once stopped restarts to perform the above work. Continuously repeat, first with the lower claw 1 open, with the upper claw 15 not opened.
6 opens, the seedling raising box A above the upper stage nail 15 does not fall, but the seedling raising box A placed on the lower stage nail 16 alone falls onto the transfer belt 49, and then the lower stage nail 16 closes. , With the upper claw 15 open, the seedling raising box A is dropped by one step as a whole to be supported by the lower claw 16, and the upper claw 15 is engaged with the collar portion 33 of the second seedling raising box A from the lowermost step. Then, in this state, the lower projection 19 comes into contact with the switch 51 to cut off the energization of the motor, and when the rear end of the nursery box A on the transfer belt 49 is separated from the switch 48, the motor is energized and the next Drop the nursery box A.

In this case, when the switch 51 is turned on, the power supply to the motor is stopped, but the cam disk 13 rotating by inertia has the upper projection 19 engaged with the nodal member 52, so that the cam disk 13 is kept at a predetermined position. Stop. As will be understood from the above description, the supply timing of the nursery box A is the starting point when the switch 48 is turned off.
As a whole, if you move it to the front position,
And the subsequent nursery box A can be widened, and on the contrary, it can be narrowed (even zero) by moving it backward.

As for the nursery box A, various heights are commercially available, and if the heights of the upper claw 15, the lower claw 16 and the nursery box A do not match, the upper claw 15 is the second from the bottom. I cannot accept the nursery box A. That is, the bottom 34 of the seedling raising box A in the lowermost stage is supported by the lower stage nails 16, but the upper stage nail 15 engages with the collar portion 33 of the second seedling raising box A from the bottom, so that the second one from the bottom. The difference between the shape of the collar 33 of the seedling raising box A is that the distance between the upper and lower claws 15 and 16 does not match the distance between the seedling raising box A and the collar 33 of the seedling raising box A, and In order for the claw 15 to be able to support the collar portion 33 of the second nursery box A from the bottom, it is necessary to adjust the protruding timing of the upper claw 15, but the upper claw 15 has a different shape. Since several types are prepared and attached to the moving shafts 28 and 41 so as to be attachable / detachable and replaceable, the height difference (including those having different flange shapes) can be obtained only by replacing the upper claw 15.
Not only can it easily accommodate various types of nursery boxes A,
It is not necessary to make a troublesome adjustment such as changing the timing at which the upper claw 15 projects.

When the upper claw 15 is retracted, the upper claw 15 is detached from the collar portion 33 of the second nursery box A from the lowermost stage and is dropped, but if the nursery box A is not vertically dropped, it is moved upward. Although the stacked seedling raising boxes A may collapse, in the present invention, the upper claw 15 is formed by integrally or separately attaching the claw portion 54 projecting to the front side to the lower edge of the substantially vertical attachment plate 53, Since the claw portion 54 is formed so as to be inclined with respect to the mounting plate 53 so as to become lower toward the tip, the upper claw 15
Smoothly separates from the collar portion 33 of the nursery box A and surely drops the nursery box A vertically. Further, in this embodiment, the upper claw 1
The inclination of the claw portion 54 of No. 5 is formed so as to incline toward the central position X of the claw portion 54 of each of the front and rear upper claws 15, so when the seedling raising box A falls from the upper claw 15, The action of guiding to the central position can also be expected.

[0022]

As described above, according to the present invention, the frame body 3 having a horizontal rectangular frame shape is provided above the starting end portion of the nursery box transfer table 2 for transferring the nursery box A, and the frame body 3 is provided at four corners of the frame body 3. Vertical columns 9 forming a stacking space 8 capable of accommodating the nursery box A
And a pair of upper and lower claws 15 and 16 on the front and rear or left and right for alternately feeding in and out below the stacking space 8 to feed the nursery boxes A one by one,
The pair of upper claws 15 is a seedling raising box stacking and feeding device which is formed by inclining the claw portion 54 so that the claw portion 54 is gradually lowered toward the tip. Therefore, the upper claw 15 is the collar portion of the seedling raising box A. Since it smoothly disengages from 33, the front and rear or left and right upper claws 15 are simultaneously retracted to prevent the nursery box A from inclining and dropping, and the nursery box A can be reliably supplied.

[Brief description of drawings]

FIG. 1 is an overall perspective view.

FIG. 2 is a sectional view of a cam box.

FIG. 3 is a sectional view of the link box.

FIG. 4 is a cross-sectional view of a nursery box detection unit.

FIG. 5 is a perspective view of an upper claw.

FIG. 6 is a sectional view of a main part.

FIG. 7 is an operation state diagram.

FIG. 8 is an operation state diagram.

[Explanation of symbols]

1 ... Seedling box stacking supply device, 2 ... Seedling box transfer stand, 3 ... Frame body, 4 ... Front frame, 5 ... Rear frame, 6 ... Left frame, 7 ... Right frame, 8 ... Stacked space, 9 ... Vertical Stanchions, 1
0 ... Guide body, 11 ... Motor box, 12 ... Cam box, 13 ... Cam disk, 14 ... Link box, 15 ...
Upper stage claw, 16 ... Lower stage claw, 17 ... Output shaft, 18 ... Upper stage protrusion, 19 ... Lower stage protrusion, 20 ... L-shaped upper stage link, 21 ...
Shaft, 22 ... Rod, 23 ... Lower L-shaped link, 24 ... Shaft,
25 ... Rod, 26 ... Lever, 27 ... Lever, 28 ... Moving shaft, 29 ... Moving shaft, 30 ... Connecting pin, 31 ... Connecting pin, 32 ... Screw, 33 ... Collar part, 34 ... Bottom part, 35 ... Rotating link , 36 ... Rotating link, 37 ... Rotating shaft, 38 ... Rotating shaft, 39 ... Lever, 40 ... Lever, 41 ... Moving shaft, 42
... moving shaft, 43 ... connecting pin, 44 ... connecting pin, 45 ... seedling raising box detecting section, 46 ... rotating lever, 47 ... spring, 48 ... switch, 49 ... transport belt, 51 ... switch, 52 ... nodal member, 53 ... Mounting plate, 54 ... Claw part.

[Procedure amendment]

[Submission date] November 6, 1991

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 8]

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michio Tezuka 44 No. 3 Hiraide Industrial Park, Utsunomiya City, Tochigi Prefecture 3 Suzutekku Co., Ltd. (72) Inventor Kazunori Suzuki No. 3 Hiraide Industrial Park 44 Utsunomiya City, Tochigi Prefecture Company Suzutek

Claims (1)

[Claims] 1. A frame body 3 having a lateral rectangular frame shape is provided above a starting end portion of a nursery box transfer table 2 for transporting the nursery box A, and the four stages of the frame body 3 can accommodate the nursery box A. The vertical support columns 9 that form the product space 8 are provided, and the stacked product space 8 is provided.
In which a pair of upper and lower claws 15 and 16 are provided before and after or left and right to alternately feed in and out the nursery boxes A one by one.
Is a seedling raising box stacking and feeding device formed by inclining the claw portion 54 so as to be gradually lowered toward the tip.