JP2503503B2 - Feeding device for seedling boxes - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a feeding device for feeding conveyed articles such as stacked seedling boxes in a predetermined direction.

[Prior Art] Seedling boxes used in seeding plants are stacked and stored in high places such as warehouses, and dozens of them are piled up and carried down and used as needed. Is common.

In this type of plant, a seedling box transferred from a predetermined storage position by a conveyor is automatically transferred to a vertical elevator.

[Problems to be Solved by the Invention] In a conventional seeding plant in which a nursery box is moved from a horizontal conveyor to an elevator in the vertical direction, the posture of the nursery box sent by the conveyor is not constant and is different from the traveling direction. Since it is often inclined, when it is supplied to the elevator, it tilts or gets caught in the elevator, which causes a problem that the seedling box is damaged or the device itself is broken.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides the following feeding device.

That is, the supply device according to the present invention is used to receive a conveyed product such as a seedling box transferred in a predetermined direction by the first transfer device and deliver it to the second transfer device transferred in the other direction. A feeder, which is provided with a stopper that acts on a conveyed object conveyed by the first conveying apparatus to stop its movement, and when the posture of the conveyed object stopped to move by the stopper is fixed to a predetermined posture It is characterized in that the carrying operation of the first carrying device is stopped and then the carrying operation of the second carrying device is started.

[Operation] When the first transport device changes the direction from the first transport direction (for example, the horizontal direction) to the second transport direction by the second transport device (for example, the vertical direction), the transported object has a predetermined delivery posture. Since the delivery is carried out by detecting that it has been fixed to the sheet, the operation is reliable, and it is possible to prevent a damage accident or the like due to the delivered article being delivered while being inclined.

[Examples] Examples described in the drawings will be described below.

FIG. 1 and FIG. 2 show an example of a seeding plant provided with a supply device according to the present invention, and an elevator 1 used as a second transfer device for vertical transfer.
Supports a pair of left and right moving chains, chains 2 and 2 ', and each chain is a sprocket wheel above and below.
It circulates in the direction of arrow A, A'between 3, 3 ', 4, 4'.

A fixed support 5 having a hook-shaped cross section is fixed to an intermediate portion of the chain 2, (2 '), and a receiving plate 7 is placed on a horizontal surface 5a. As shown in FIG. 4, a lateral elongated hole 9 is bored in the receiving plate 7, and a supporting member 10 provided integrally with the fixed support 5 projects upward from the elongated hole 9 and A pressing roller 11 axially supported by the protruding portion presses the upper surface of the receiving plate 7. Therefore, the receiving plate 7 can freely slide on the horizontal surface 5a of the fixed support 5 along the elongated hole, but since it is pressed by the pressing roller 11, it is always kept in close contact with the horizontal surface 5a. Be drunk An upward protruding guide tool 13 is integrally provided on the upper surface of the receiving plate 7, and a guide roller 15 is pivotally supported on the upper end portion of the guide tool 13.

A guide member 19 having an inclined guide surface 17 with which the guide roller 15 of the guide tool 13 abuts is provided in the vicinity of the transport end portion (lower end portion) of the elevator 1. This guide member
The inclined guide surface 17 of 19 is formed so as to open outward as it goes downward, and its lower end portion 19a is located in the vicinity of the upper end portion of the seedling box 20 just stacked on the lower side. When the guide roller 15 reaches the lower end 19a, the tip 7a of the receiving plate 7 supporting the seedling box 20 is pulled toward the chain 2, (2 ') side along the locus X shown by the chain line in the figure, It is configured to be removed from the box 20.

Further, in the vicinity of the path of the return side (upward side) of the chain 2, (2 '), a guide having an inclined guide surface 17' whose upper part projects outward is symmetrical with the guide member 19 on the lower side. Element
19 'is provided. The receiving plate 7 retracted by the descending side guide member 19 reverses at the position of the lower sprocket wheel 4 (4 ') and moves upward,
At this time, the guide member 19 'provided on the return path
The guide roller 15 comes into contact with the inclined guide surface 17 ′ of, and is gradually pushed out as it rises and returns to its original state.

A horizontal conveyor 25, which is a first transfer device, is installed at the start end (upper end) of the elevator 1, and a supply device 27 according to the present invention is provided at the transfer end part. The supply device 27 is provided with a stopper 28 for receiving the carried seedling box and an extruding device 29 for pushing the received seedling box sideways to supply it to the elevator 1. The stopper 28 is a fixed plate 43 fixed to the machine frame and a pair of flaps 45, 45 pivotally attached to the fixed plate by hinges 44.
Actuators 46 and 46 of limit switches LS1 and LS2, which are detectors, are fixed to the back side of flaps 45 and 45 with fixed plates.
It elastically abuts through the openings 47, 47 of 43.

A delivery device 30 is provided below the elevator 1. The pay-out device 30 includes four rotary pay-out tools 35, 35 ... Each of which has a helix 33 provided on an upper end portion of a rotary shaft 31.
The pitch of 3 has the same length as the thickness of the brim 20a of the seedling box 20. The spiral 33 is fitted in the space between the collar portions 20a, 20a, ... Of the stacked nursery boxes 20, 20, ... And supports the nursery box 20 by the collar portion 20a, but when the rotary shaft 31 is rotated. , The collar portion 20a descends along the spiral 33, and finally the spiral 33
It falls off the end part of the roller and falls on the inclined roller conveyor 37. The four rotary feeding tools 35 are rotatably supported by the cylindrical body 36, respectively, and are rotated by the rotational power transmitted from the motor M ₄ via the pulley 38 and the belt 40 provided at the lower end.

The roller conveyor 37 is composed of a plurality of rollers 37a arranged at regular intervals, and the inclination thereof can be adjusted by a jack 41 provided at the starting end. Roller conveyor 37
The end part of the is connected to the start end of the conveyor 51 of the seeding device 50.

The seeding device 50 is a soil supply device 53 along the conveyor 51,
A watering device 55, a seeder 57, and a soil cover device 59 are provided. The floor soil supply device 53 includes a floor soil hopper 60 and a feeding device 61, and rotates the feeding roller 61a by the power taken out from the pulley 51a of the conveyor 51 via the belt 51b, and the floor held in the hopper 60. The soil is supplied into the seedling box 20. The irrigation device 55 is a device that sprays the water stored in the water tank 55a onto the soil in the seedling box 20. The seedling box 20 placed on the conveyor 51 of the seeding device 50 is a paper-laying device 70 described later.
After moving the conveyor 51, first the floor soil supply device
53 It reaches the installation section, and the floor soil is thrown in here. Next, the soil is irrigated by the irrigation device 55, seeds are sown by the sowing machine 57, and the soil is overlaid by the soil covering device 59. The steps of supplying soil, irrigation, sowing, and covering soil are automatically performed one after another.

In the figure, M ₁ is a motor for driving the conveyor 25, which is the first conveying device, M ₂ is a motor for driving the pushing device 29, M ₃ is a motor for driving the elevator 1, and M ₄ is for driving the feeding device 30. Is the motor of. Also, there are necessary limit switches (SW) at each position of this device. Of these, LS1,
As described above, ls2 is a limit switch that is provided at the end of the conveyor 25 and detects that the seedling box 20 has been conveyed to a predetermined position by the conveyor 25. SW3 is a limit switch that detects that the pushing device is retracted, SW4 is a limit switch that detects the presence of the backing plate 7, and SW5 is provided in the middle of the elevator 1 The receiving plate 7 on which 20 is placed is the preceding seedling box
A limit switch that detects when you are right above the 20th group
SW6 is a seedling box 20 stacked at the end of elevator 1.
SW7, a limit switch that detects when
Is a limit switch that detects that the seedling box 20 that has dropped onto the roller conveyor 37 has flowed downward.

When the seedling box 20 is brought to the position of the supply device 27 by the conveyor 25 which is the first transport device, the flaps 45, 45 of the stopper 28 are pressed by the end of the seedling box 20 to set the limit switches LS1, LS2. Turn it on. Then, the relay R is activated and the magnet switch MG1 of the motor M1 of the conveyor 25 is turned off, so that the conveyor 25 is stopped and the pushing device
Extrusion device 29 is actuated magnet switch MG2 motor M ₂ 29 becomes the input and feed the seedling box group in the elevator 1.

Since two flaps are juxtaposed on the stopper 28 and limit switches LS1 and LS2 on the back side thereof are connected in series, the seedling box 20, which is sent by the conveyor 25,
When .. is inclined with respect to the traveling direction, only one of the flaps is pressed, so that the relay R does not operate, and therefore the pushing device 29 does not perform the pushing operation. Seedling box 20,
The inclination of ... is corrected by the driving force of the conveyor 25 and the regulation force of the stopper 28, and when the edge portion becomes a right angle to the traveling direction, that is, when the seedling box is fixed in a predetermined feeding posture, both Since the flaps 45, 45 are pressed, the pushing device 29 operates. Therefore, the seedling box 20 is always supplied to the elevator 1 in a fixed posture perpendicular to the feeding direction of the conveyor 25, and smooth supply and conveyance are maintained. A plurality of flaps and limit switches may be provided above and below and to the left and right, but it is usually sufficient to provide two such sets as shown in the drawing.

The seedling boxes 20, ... Supplied on the receiving plate 7 of the elevator 1 are carried down by the elevator, and stand by immediately above the preceding seedling boxes 20, .. . SW6 that the preceding seedling box has decreased
Is detected, the new seedling box carried by the elevator 1 is stacked on the preceding seedling box. By repeating this operation, automatic feeding of the seedling box to the seeding device is efficiently performed.

Next, FIG. 7 is an explanatory view of the paper-laying device 70, and the paper-laying device 70 is installed between the elevator 1 and the soil supply device 53 in this sowing plant. Paper laying device 70 is a frame
71 is provided with a pair of upper and lower cassette cases 72, 72. A delivery roll 74 and a paper lifting spring 75 are provided at the delivery end of the cassette case, and a cassette case 72 is provided in the middle of the cassette case. A photoelectric detection device 77 is provided to detect that the paper 76 has run out. Guides 78, 78 'made of plate bodies having a curved cross-section are provided between the cassette cases 72, 72 and the conveyor 51 at the delivery end. The lower end of the guide 78 of the lower cassette case 72 faces directly above the seedling box 20 fed in the direction of the arrow on the conveyor 51, and the lower end of the guide 78 'of the upper cassette case is of the lower cassette case. It faces the middle of Guide 78. A seedling box detector 80 is provided on the conveyor 51 to detect the seedling box 20 being sent and set the drive timing of the feeding roll 74. That is, when the empty seedling box 20 is sent on the conveyor 51, the end portion thereof is detected by the detector 80, and the paper is fed from the cassette case 72 at a speed commensurate with the transfer speed of the seedling box by the operation of the control device (not shown). Is paid out. The timing is such that the fed paper is just laid in the seedling box 20. The paper 76 is formed in a rectangular shape slightly smaller than the inner size of the seedling box 20 and is loaded in the cassette case in advance in a stacked state. When one of the upper and lower cassette cases 72, 72 becomes empty, the paper is fed from the other cassette case, and new paper is supplied to the empty cassette case during that time.

As shown in FIG. 8, the seedling box 20 has a large number of holes 20c for draining the bottom plate 20b, so that when the floor soil is supplied by the floor soil supplying device 53, the soil spills from the holes 20c ,. There is a problem to say. For this reason, conventionally, newspapers etc. are manually
Although it was laid on top, it was inefficient and required a lot of work. Further, when manually laying the paper, it is necessary to perform the work in front of the conveyor 25 due to the space limitation, so that there is a problem that the paper is displaced due to an impact during the subsequent carrying process.

On the other hand, if the paper laying device 70 as shown in the drawing is provided, the paper laying work on the seedling box is automatically performed, which is convenient. Further, since the paper spreading device 70 is provided immediately before the floor soil supplying device 53, it is possible to prevent the paper from being displaced in the seedling box.

[Effects of the Invention] As is clear from the above description, the feeding device for seedling boxes or the like according to the present invention temporarily fixes the seedling boxes or the like conveyed by the first conveying device to the normal posture and then Since it is handed over to the second transport device, it is possible to smoothly carry out the redirecting transfer, and it is possible to prevent damage to the transport object or the transport device.

[Brief description of drawings]

1 is a side view showing a sowing plant equipped with a supply device according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is an enlarged view of a part thereof, FIG. 4 is an explanatory view of a part thereof, FIG. 5 (a),
(B) is a side view and a front view of the main part, FIG. 6 is a sequence diagram showing its operation, FIG. 7 is an explanatory view of the paper-laying device,
FIG. 8 is a sectional view of a seedling box. 1 …… elevator, 2,2 ′ …… chain 5 …… fixed support, 7 …… support plate, 9 …… oblong hole 10 …… supporting tool, 11 …… pressing roller, 13 …… guide 15… Guide roller, 17 …… Inclined guide surface 19 …… Guide member, 20 …… Seedling box, 25 …… Conveyor 27 …… Supply device, 29 …… Pushing device 30 …… Feeding device, 33 …… Lens

Claims (1)

(57) [Claims] 1. A supply device used to receive a conveyed product such as a seedling box conveyed in a predetermined direction by a first conveying device and deliver it to a second conveying device which conveys it in another direction. A first stopper is provided when a stopper that acts on the conveyed object conveyed by the first conveying device and stops its movement is provided, and the posture of the conveyed object stopped by the stopper is fixed to a predetermined posture. The transport operation of the device has stopped,
A feeding device for seedling boxes and the like, characterized in that the feeding operation of the second feeding device is started thereafter.