JPS61166306A - Seedling growing box feeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is directed to a seeding device that automatically performs a series of seeding operations such as soil filling, seeding, and N top while conveying seedling boxes on a conveyor. The present invention relates to a seedling box feeding device that sequentially supplies seedling boxes.

C. Prior Art] Apparatuses for feeding one seedling-growing box from a set of seedling-growing boxes stacked in multiple stages to a seeding device are described in Japanese Utility Model Publication No. 54-15221, Japanese Unexamined Patent Publication No. 145935-1980, etc. Various types have been developed.

[Problem that the invention seeks to solve]

In such a conventional seedling box feeding device, it is not easy to separate one seedling box from a set of seedling boxes stacked in multiple tiers, and a large amount of force is required due to the influence of frictional force. There was a fear that it would not be done. In addition, when one seedling box is separated from another and transported, the stacked seedling boxes will ride on the transported seedling box and tilt, causing the stacked state to collapse and the next one to be moved. There was a possibility that it would interfere with the transportation of seedling boxes.

[Means for solving problems]

The present invention has been made in view of the above circumstances, and it is an object of the present invention to reliably and smoothly feed one seedling box from a set of V# seedling boxes stacked in multiple tiers without disturbing the stacked state. The purpose is to provide a seedling box feeding device.

The present invention is an apparatus for sequentially supplying seedling boxes to a seeding device that performs a series of seeding operations such as filling the seedling boxes with bed soil, sowing seeds, and applying rippling soil. an air cylinder that is attached to the elevator table and raises and lowers the elevator table by advancing and entering the lifter, and a lifter that has a guide shaft that is disposed on the side of the air cylinder and raises and lowers the elevator table in parallel; It has an air cylinder arranged opposite to each other above the lifter and a clamp part attached to the rod tip of the air cylinder, and when the lifting platform is lifted, the lowermost part of the seedling box set on the lifting platform A chucking device that holds the seedling growing box on the second stage from above, a conveying device that is connected to the seeding device, and a conveying device that is arranged opposite to the conveying device so that when the lifting platform is lowered, the seedling growing box on the lifting platform is It is characterized by comprising a dispensing machine that pushes out the dispensing material to a conveying device.

〔Example〕

The present invention will be described below based on drawings showing embodiments thereof. FIG. 1 is a layout diagram of a seedling raising facility according to the present invention, FIG. 2 is a partially cutaway view thereof, and FIG. 3 is a side view of a portion thereof.

This seedling raising facility has two floors, and on the upper floor A, a large number (approximately 800) of seedling raising boxes 10 made up of 20,111 empty seedling raising boxes 11, 11... are stacked. A stock conveyor 20 for stocking is provided.

A delivery conveyor 21 is connected to the terminal end of the stock conveyor 20, and the delivery conveyor 21 sends out the seedling raising box sets 10 placed on the stock conveyor 20 one by one from the stock conveyor 20. At the end of 21,
A corner conveyor 22 bent at 90 degrees in an arc shape is connected to the corner conveyor 22. At the end of the corner conveyor 22, a roller conveyor 23 facing the entrance of a descending lift 30 that sequentially lowers a set of seedling boxes 10 from the upper floor A to the lower floor B is disposed. On the side of the roller conveyor 23 facing the entrance of the lowering lift 30, there is a loading pusher 2 for transferring one set of seedling raising boxes 10 on the roller conveyor 23 onto the lift platform 32 of the lowering lift 30.
4 are provided.

At the bottom of floor B below the 300th floor of the descending lift,
A carrying-out port is formed, and a seedling-growing box feeding device 40 according to the present invention is disposed facing the carrying-out port. In addition, at the lower part of the lowering lift 30, at a position opposite to the exit,
An unloading button 31 is provided. The carrying out button 31 has an air cylinder 31a arranged so that the advancing direction of its rod is toward the side of the seedling box supply device 40, and two guide shafts 31b, 31b arranged on the sides of the air cylinder 31a. , the bottom of a rectangular frame 31c is fixed and erected on the tip surface of the air cylinder 31a in the advancing direction and the tip surfaces of the guide shafts 31b and 31b in the same direction (see FIGS. 2 and 3). ), when the rod of the air cylinder 31a advances, the frame 31a is moved toward the side of the seedling box supply device 40, pushes the seedling box set 10 on the lift stand 32, and moves the seedling box set IO to the seedling box supply device 40. Transferred to. The seedling-growing box feeding device 40 separates and conveys one seedling-growing box 11 from the seedling-growing box assembly 10, and its details will be described later.

On the lower floor B, a seeding device 50 is arranged in series with the seedling growing box feeding device 40, and each seedling growing box sequentially fed from the seedling growing box feeding device 40 is placed on the seeding table 51 of the seeding device 50. While moving on the seeding platform 51, soil is inserted into the soil by the soil filling machine 52, watered by the irrigation machine 53, seeds are sown by the seeding machine 54, and then the soil is put into the soil covering machine 55. covered with soil.

A shelving device 60 is disposed in the seeding device 50, and the seedling raising boxes in which sowing has been completed are sequentially stored in a shelf position of a storage cart 70 located on the side of the shelving device 60.

A large number of bits 93, 93... are located on the side of the large shelf device 60.
is formed, and each pit 93 has a lattice M of slatted wood etc.
B2 are respectively provided, and a storage cart 70 is positioned on each lattice cover 91. Hot water heated by a boiler 92 is supplied to each bit 93, and the temperature in the storage cart 70 is adjusted to 6i degrees to germinate the seeds in the seedling box stored in each shelf position. let

FIG. 4 is a side sectional view of the seedling box supply device 40 according to the present invention, and FIG. 5 is a plan view thereof. In Fig. 0, 41 is a lifter to which the seedling box set 10 on the lift stand 31 of the lowering lift 30 is transferred, and the lifter 41 has a horizontal lifting stand 41c. A rod tip of an air cylinder 41a is fixed to the center of the lower surface of the lifting table 41c, with the rod extending upward.

A guide shaft 41b is provided on each side of the air cylinder 41a,
41b is attached to be slidable in the vertical direction, and the tip of each guide shaft 41b, 41b is attached to the lower surface of the lifting table 41c, so that the lifting table 41c can move up and down while maintaining a horizontal state. be. Therefore, when the rod of the air cylinder 41a moves upward, the platform 41c is raised while remaining horizontal, and when the rod of the air cylinder 41a moves downward, the platform 41c is lowered while remaining horizontal.

The elevating table 41c is set at three positions: the uppermost position where the rod of the air cylinder 41a extends farthest, a position lowered by one seedling box from this position, and a position where the seedling growing box is discharged.

A guide member 49 is disposed above the lifter 41 to face the exit of the descending lift 30 and guide the seedling raising box set 10 on the lift platform 32 of the descending lift 30. This guide member 49 has a U-shape in plan view with the outlet side open, and guides the seedling raising box set 10 pressed by the unloading pusher 31 so that it is reliably transferred onto the lifter 41. .

On the other hand, on each side of the seedling raising box supply device 40 in a direction perpendicular to the moving direction of the seedling raising box assembly 10, a second stage of seedling raising boxes from the bottom of the seedling raising box assembly 10 is held when the lifter 41 is raised. A pair of chucking devices 42° 42 are arranged. Each chucking device 42 has the same structure and is arranged to face each other. One chucking device 42 includes an air cylinder 42a mounted with a spherical bearing so that the advancing direction of the rod is toward the center of the lifter 41, and a pair of spherical bearings 42d on both sides of the air cylinder 42a.

Guide shafts 42f are supported at 42d and are slidable in the same direction as the rod advancing and retracting direction of the air cylinder 42a.
, 421 are removably attached with bolts to the rod tip of the air cylinder 42a and the lifter 41 side tips of both guide shafts 42f, 42f, and the lower part is attached to the lifter 41.
It consists of a side-curved clamp part 42c that protrudes to the side, and a recess 42e is formed in the center of the front end of the clamp part 42c, which engages with a reinforcing lip formed on the side surface of the seedling box. ing. Since the air cylinder 42a and each guide shaft 42f are attached with spherical bearings, the clamp portion 42c reliably engages with the seedling growing box even when the seedling growing box set is not in a predetermined posture.

A discharge button 43 is attached below the air cylinder 42a of the chaffing device 42, which is disposed on the side opposite to the disposed position of the seeding device 50.

The cough release button 43 has a pressing member 43c attached to the tip of an air cylinder 43a whose rod 43b extends toward the seeding device 50, and a lifter □4
When the seedling box 1 is lowered, one seedling growing box 11 placed on the upper surface of the seedling box 11 is moved to the seeding device 50 side.

A roller conveyor 44 is disposed on the side facing the dispensing busher 43 so that the axis of the dispensing busher 43 and the widthwise center of its starting end coincide with each other. 50 facing the starting end of the seeding table 51.

The roller conveyor 44 includes a drive roller 44a rotated by a motor and a free roller 4 rotatably attached.
4b are arranged alternately. FIG. 6 is a longitudinal sectional view of the free roller 44b. The free roller 44b is rotatably attached to a shaft 44c via a resin bearing 44d made of MC nylon or the like.

A lift table 32 is placed on the lifting table 41c of the lifter 41.
In order to detect that the seedling raising box set 10 has been transferred from above, an opposing photo switch is placed along the diagonal line of the lifting platform 41c.
Seedling raising box assembly sensors 81 are installed at the bottom of the guide member 49 so that the light travels straight with a slight inclination in the vertical direction, and a lifting platform 41c is provided below each of the seedling raising box assembly sensors 81. A seedling-growing box sensor B2 using a facing photo switch is provided to detect that one seedling-growing box is placed on the top surface of the roller conveyor 44 when the top surface thereof becomes the same level as the top surface of the roller conveyor 44.

Furthermore, the air cylinder 41a for lifting the lifting table 41c is equipped with a lifting table upper position sensor 83 using a reed switch that detects when the lifting table 41c has reached a predetermined upper position and its piston rod has advanced a predetermined length. A lower position sensor 84 is attached to each platform using a reed switch to detect when the platform 41c is at the same height as the top surface of the roller conveyor 44 and its piston rod is retracted by a predetermined distance.

One air cylinder 42 in the chucking device 42
In a, there is a chucking sensor 85 using a reed switch that detects when the rod has advanced by the length necessary to hold the seedling growing box, and a chucking sensor 85 that uses a reed switch to detect when the rod has advanced by the length necessary to hold the seedling growing box, and the length necessary for the rod to release the holding of the seedling growing box. A chuck release sensor 86 using a reed switch is provided to detect when the chuck is retracted.

Furthermore, the air cylinder 43 in the dispensing button 43
For a, a reed switch is used to detect when the rod has advanced by the length necessary to push one seedling box placed on the lifting platform 41C and transfer it onto the roller conveyor 44. A dispensing sensor 87 and a dispensing preparation sensor 88 using a reed switch to detect when the rod has retracted to a predetermined position are provided.

In order to detect when the number of seedling boxes that have been transferred and placed on the roller conveyor 44 has reached a predetermined number or more and is no longer moving, the roller conveyor 44 has a Seedling box fullness sensors 89 are provided which are composed of opposing photoswitches arranged on both sides.

FIG. 7 is a block diagram of the control system of the seedling box feeding device according to the present invention. In FIG. - and motors 44a jr for driving the roller conveyor are sequentially controlled.

The operation of the seedling box supply device having such a configuration is as follows.The lift platform 32 of the descending lift 30 is opened on the floor A above the 0th floor.
The seedling raising box assembly 10 loaded on top is lowered to the lower floor B by a lift table 32. When it is detected that the lift table 32 has been lowered, the air cylinder 41a of the lifter 41 is operated in the seedling box supply device 40 to lower the lifting table 41.
c is an upper position lowered by one seedling box from the advancing limit of the air cylinder 41a.

The seedling box assembly 10 on the lowered lift platform 32 is transferred by the unloading pusher 31 onto the elevating table 41c of the lifter 41 of the seedling box supply device 40, and in this state, the seedling raising box assembly sensor 81 is turned on. , whereby the sequencer 90 controls each air cylinder 4 in the chucking device 42.
The rod 2a is advanced, and the second seedling raising box 11 from the bottom of the seedling raising box assembly 10 is held by the clamp portions 43c, 43c at the tips of both rods.

When both clamp portions 43c+ 43c are in a state of holding the seedling box 11, the chucking sensor 85 is turned on, the air cylinder 41a of the lifter 41 is retracted, and the lifting platform 41c is lowered. In this case, the second seedling raising box 11 from the bottom of the seedling raising box set 10 is equipped with a chaffing device 42.
Since the seedling raising box and the seedling raising boxes stacked above it are held at is placed thereon, and the lifting platform 41c descends in this state. When the elevator platform 41c is lowered to the same height as the upper surface of the roller conveyor 44, the elevator platform lower position sensor 84
is turned on, and the operation of the air cylinder 41a is stopped. Next, the air cylinder 43a in the dispensing button 43
is operated to advance the loft 43b, and the rod 43
The pressing member 43c at the tip b presses the seedling growing box 11 toward the roller conveyor 44 and transfers it onto the roller conveyor 44.

In such a state, the dispensing sensor 87 is turned on, the seedling box transfer detection switch 89 is turned on, and the rod 43b of the air cylinder 43a of the dispensing button 43 is retracted. When the rod of the air cylinder 43a is in the retracted state, the payout preparation sensor 88 is turned on, the air cylinder 41a of the lifter 41 is operated to advance the rod, and the lifting platform 41c is raised. When the rod of the air cylinder 41a advances the most and the lifting platform 41c reaches the uppermost position, the operation of the air cylinder 41a is stopped, and each air cylinder 4 of the chucking device 42
2a is operated to allow the rod to enter, the clamp portions 43c at the tips of the rods release the holding of the seedling raising box, and the entire seedling raising box is placed on the lifting platform 41c of the lid 41. Then, the rod of the air cylinder 41a is retracted by one seedling box, and when the lifting table 41c reaches a predetermined upper position, the lifting table upper position sensor 83 is turned on, and the air cylinder 41a
The operation of the chucking device 42 is stopped, the chuck release sensor 86 is turned on, and the air cylinder 42a of the chucking device 42 is activated.
The rod is operated to advance, and the second seedling growing box from the bottom is held again. When such a state occurs, the chucking sensor 85 is turned on, and the same operations as described above are repeated. Therefore, the seedling growing boxes 11 are sequentially fed one by one to the roller conveyor 44, and the roller conveyor 44 sequentially transports the seedling growing boxes to the seeding table 51 of the seeding device 50.

At this time, when the seedling box transferred onto the roller conveyor 44 becomes full, the seedling box full sensor 89 is turned on, and the operation of the seedling box feeding device 40 is stopped.

The seedling growing box transported to the seeding device 50 undergoes a series of seeding operations while moving on the seeding table 51 of the seeding device 50, and is moved to a predetermined shelf position on the storage cart 70 by the shelving machine 60. It will be posted. Each storage trolley 70 is located above the pit 93, where the temperature is controlled and moistened to promote germination.

〔effect〕

According to the present invention, it is possible to reliably separate each seedling-raising box from a set of seedling-raising boxes stacked in multiple tiers! When this single seedling growing box is separated or when the seedling growing box is transferred onto a conveyor, the seedling growing box will not be tilted, so there is no risk of the seedling growing box being damaged.

In addition, a lifting platform is used to place a set of seedling-raising boxes and separate one seedling-growing box from the set of seedling-raising boxes, and this lifting stand is raised and lowered by an air cylinder, so that the lifting speed is fast. The present invention has excellent effects, such as shortening the separation and transportation time of the seedling-growing box, and since the lifting platform is raised and lowered by the guide shaft while maintaining a horizontal state, separating and transporting the seedling-growing box becomes easy.

In addition, in the above-mentioned embodiment, the chucking device 42
Since the air cylinders 42a are supported by spherical bearings, they are rotatable, and the position my of each air cylinder 42a can be easily adjusted when holding the seedling box.

In addition, the clamp portion 42c at the tip of each F cylinder 42a
Since each clamp part 42c is prevented from springing, it can be easily replaced even if it wears out due to contact with the seedling box.Furthermore, a recess 42e is formed in the clamp part 42c,
2e is engaged with a reinforcing rib at the bottom of the seedling box, so that the clamping can be done reliably.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG.
The figure is a plan view thereof, FIG. 3 is a side view thereof, FIG. 4 is a side view of the seedling box feeding device according to the present invention, and FIG. 5 is a plan view thereof.
FIG. 6 is a longitudinal sectional view of the free roller, and FIG. 7 is a block diagram of the control system of the apparatus of the present invention. 10... Seedling raising box assembly 11... Seedling raising box 30... Lowering lift 40... Seedling raising box supply device 41... Lifter 41a, 42a, 43a... Air cylinder 4
1b...Guide shaft 41c...Elevating table 42...Chucking device 42c...Clamp portion 43...Dispensing button 44...Roller conveyor 50...
・Seeding device 60...Large shelf device patent Applicant: 1 person other than Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Scope of Claims] 1. In a device that sequentially supplies seedling boxes to a seeding device that performs a series of seeding operations such as filling the seedling boxes with soil, sowing, and covering with soil, a set of seedling boxes stacked in multiple tiers is provided. An elevating table is placed on the elevating table, an air cylinder is attached to the elevating table and raises and lowers the elevating table by advancing and retracting the air cylinder, and a guide shaft is arranged on the side of the air cylinder and raises and lowers the elevating table in parallel. an air cylinder disposed opposite to each other above the lifter, and a clamp portion attached to the rod end of the air cylinder, and when the lifting table is lifted, the seedling box assembly on the lifting table is lifted. a chucking device that holds the second seedling raising box from the bottom of the device; a transportation device that is connected to the seeding device; and a transportation device that is disposed opposite to the transportation device and that lifts and lowers when the lifting platform is lowered. A seedling box feeding device comprising: a dispensing machine that pushes out a seedling box on a table to a conveying device.