JPH0553694B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lift delivery device for seedling boxes.
This invention relates to a lift and delivery device for seedling boxes that follows a seeding machine that sows seeds, covers soil, etc., and lifts the seedling boxes that have finished the seeding process and delivers them to another seedling box transfer device.

[Prior art]

Conventionally, with a device that lifts seedling boxes sent out by a conveyor on the seeding machine side and transfers them to another seedling box transfer device, the seedling boxes sent out from the seedling machine side are stopped by a stopper, and then the seedling boxes are lifted and delivered to another seedling box transfer device. It was configured to lift.

[Problem to be solved by the invention]

In the above-mentioned conventional technology, seedling boxes with seeded seeds are tilted while being transferred from a horizontal transfer conveyor to a lift conveyor and then transferred to another transfer device, or when transferred from a horizontal transfer conveyor to a lift conveyor, a seedling box is tilted while being transferred from a horizontal transfer conveyor to a lift conveyor, It is unavoidable that a shock is applied to the seedling box in the horizontal transfer direction when the seedling box is transferred to the transfer device, which causes the problem that the seeds or topsoil sown in the seedling box move or become lopsided.

In order to solve the above-mentioned problems in the transfer route between the transfer conveyor and the lift conveyor of the seeding machine of the seeding device, the present invention makes it possible to transfer the seedling boxes while keeping the attitude of the seedlings horizontally, and to move the seedling boxes from the horizontal transfer conveyor. The object of the present invention is to minimize the horizontal impact applied to the seedling box when it is transferred to a lift conveyor and when it is transferred from the lift conveyor to another transfer device.

[Measures taken to resolve the problem]

This invention takes the following measures to solve the above problems.

At the terminal end of the transfer conveyor 4 of the seeding machine Splicing conveyor 12
A lift conveyor 13 is provided on both the left and right sides of the transfer conveyor 12 and extends vertically.
13, seedling boxes being moved on inheritance conveyor 12
Receiver 1 that supports the lower surface of A' from below on both left and right sides
4 and 14 are provided, and the seedling boxes A' lifted in a horizontal position by the lift conveyors 13 and 13 are transferred to the transfer conveyor 1.
A seedling box delivery device 10 is provided which includes an extrusion device 15 that extrudes in the same direction as the transfer direction of the left and right lift conveyors 13. 13, and is located above the rear end of the transfer conveyor 4 in the direction of movement and above the seedling box entry side of the lift conveyor so as to operate in the front-rear direction in the direction of movement of the transfer conveyor 4.

[Operation and effects of the invention]

The seedling box A', which has been sown by the seeding machine X, covered with soil, and transported by the transfer conveyor 4, is inherited by the transfer conveyor 12, and transferred to the lower part of the lift conveyors 13, 13 by the transfer conveyor 12. During the transfer by the transfer conveyor 12, the receivers 14 of the lift conveyors 13, 13 support the lower surface of the seedling box A' from below on both left and right sides and pull it up. When the seedlings reach near the upper ends of the lift conveyors 13, 13, they are pushed out from the lift conveyors 13, 13 onto another transfer device 28 by the extrusion device 15, and transferred to the seedling grower 29 by the transfer device 28. Therefore, the seedling box is transferred from the transfer conveyor 4 to the other transfer device 28 while maintaining its horizontal position, so that the seedling box is not tilted during transfer.

Also, the seedling boxes A' held on the lift conveyors 13, 13 are delivered to another horizontal transfer device 28 by the extrusion device 15, but the extrusion operation by an air cylinder is compared to that by hydraulic pressure or electromagnetic force. The air cylinder itself has a buffering function, so even if the extrusion operation from the lift conveyor is performed at a certain speed, the horizontal impact applied to the seedling boxes by this extrusion operation is minimized as much as possible. can do.

The cylinder body of the extrusion device 15 is located above the rear end of the transfer conveyor 4 in the traveling direction and above the seedling box entry side of the lift conveyors 13, 13, and overlaps with the rear end of the transfer conveyor 4 in the traveling direction in plan view. Therefore, despite the installation of a vertical lift conveyor and an extrusion device for pushing out seedling boxes from the lift conveyor, the transfer conveyor 1
2. Alternatively, the transfer conveyor 4 can be made as short as possible, and the transfer path of the seedling boxes can be made as short as possible, so that the seeding device can be made compact.

In addition, the seedling boxes being transferred by the transfer conveyor are placed on the receiver 1 from below on the left and right lower surfaces in the direction of movement.
4, 14, and at the moment when the receivers 14, 14 come into contact with the lower surface of the seedling box A', the seedling box slides on the upper surface of the receiver 14 and moves in the transfer direction of the transfer conveyor 12. is possible, the transfer conveyor 12 to the lift conveyor 13, 13
The shock applied to the seedling box in the horizontal direction (in the direction of movement of the inheritance conveyor) at the moment when the seedling box is inherited by (see). Therefore, when the seedling box is transferred from horizontal to vertical transfer, it is possible to prevent the seeds sown in the seedling box and soil from shifting or shifting due to horizontal impact as much as possible. .

〔Example〕

Next, one embodiment of the present invention will be described in detail based on the drawings.

First, to explain the overall configuration shown in Figures 1 and 2, X is a seeding machine, and two conveyor belts 3 on the left and right are wound on a short seeding table 1 supported by legs 2, 2. A rotating seedling box transfer conveyor 4 is provided. Reference numeral 5 denotes an empty seedling box feeding device that loads empty seedling boxes A and feeds them out onto the conveyor belt 3 one after another.

Reference numeral 6 denotes a bed soil supply device, which is composed of a hopper 6a and a bed soil delivery device 6b, and is configured to supply bed soil into the empty seedling box A during transport, and is configured to be rotated by a motor M6a. There is.

Reference numeral 7 denotes a seeding device, which is composed of a hopper 7a and a seeding feeder 7b, and is configured to sow seeds into a seedling box A fed with bed soil, and is driven and rotated by a motor M6b.

Reference numeral 8 denotes a soil covering device, which is composed of a soil covering hopper 8a and a soil covering device 8b, and is used to cover the top surface of the seedling box A into which seeds are sown and sent out, and is configured to be driven by the motor M6b. .

9 is an irrigation device, a bed soil supply device 6 and a seeding device 7
The structure is such that it is located between the ground and the ground so as to irrigate the top surface of the soil.

Reference numeral 10 denotes a delivery device, which is located on the rear side of the seeding machine It is structured as follows. An example of lift conveyors 13, 13 that are provided with a transfer conveyor 12 that winds in the front and rear directions in the frame 11 that is vertically installed in a gate shape when viewed from the front, and that winds in the vertical direction in the front and back on both left and right sides of the frame. Winding a certain chain 13a, 13a..., this chain 1
The receivers 14, 14 are attached to the front and rear of the chains 13a, 13a..., and the seedling boxes A' placed on the transfer conveyor 12 are placed in a horizontal state by the rotation of the chains 13a, 13a... It is configured to move upward while being held.

Reference numeral 15 denotes an extrusion device, which is located at the left and right center of the front side of the frame 11 and moves an extrusion plate 15b back and forth using an air cylinder device 15a using air pressure from an air compressor (not shown). 16 is an air switching valve. M5 is a motor that drives the lift chains 13a, 13a...
M7 is a motor that drives the belt conveyor 12, and Sw10 is a detection switch that detects when the seedling box A' has been sent by the belt conveyor 12 and has just reached the position where it will be lifted by the receivers 14, 14. Based on the detection, motor M
5 is provided to be rotated.

Sw11 is a detection switch that detects that the lift chains 13a, 13a... have rotated and reached the position where the extrusion device 15 should push out the seedling box A', and this stops the rotation of the motor M5 and also stops the air cylinder device. 15a is configured to encourage operation.

The switches Sw12 and Sw13 are for controlling the opening and closing of the piston of the air cylinder device 15a.

Y is a seedling box transfer processing device, and in the example shown in the figure, the seedling box A' is transferred to the left and right while being transferred to the seedling nursery device 29.
This is a device that supplies A′ in a stacked state, including a sorting transfer device 23 and a seedling box pushing device 48, 4, which will be described later.
9. Consists of a vertical movement device 36 for the seedling nursery.

Reference numeral 23 denotes a sorting and transferring device for seedling boxes A', which receives the seedling boxes A' pushed out by the pushing device 15 and distributes the seedling boxes A' into two rows on the left and right while transporting them rearward. has the following structure. a support stand 2 connected to the frame 11 of the delivery device 10;
A rotating roller 25 whose axis is oriented in the left-right direction is mounted on the top of the roller 4.
... are supported at predetermined intervals, and each of these rotating rollers 2
5... are configured to be transmitted and rotated by a motor M4 via a chain, and an air cylinder device 27 of the same type as the extrusion device 15 is provided on one side of this rotating roller conveyor. The push-out plate 27a is designed to operate in conjunction with the operation of the air cylinder 15a, and to operate 1/2 of the operation of the push-out plate 15a, thereby pushing out the seedling box A' pushed out by the air cylinder 15a. It is configured to be distributed into two columns, left and right. A seedling box transfer device 28 is successively connected to the rear side of this sorting transfer device 23.
The structure is such that the seedling boxes A' are transferred rearward while remaining in two rows on the left and right.

Reference numeral 29 is a seedling raising device, which is attached to the pillars 30 on the front and rear ends.
A, 30b and an intermediate support 30c are arranged at a predetermined interval on the left and right, making a total of 6 supports, and the support beams 31 extend vertically to the left and right at intervals slightly wider than the height of the seedling box A'. are attached, and each of these supports 30a, 30b, 30c is connected at the upper and lower ends with upper and lower frames 32, 33, and a total of 4 seedling boxes are placed on a horizontal plane at predetermined intervals in a plan view. is configured to be The lowermost frame 33 of this seedling raising device 29 has rolling wheels 34, 34, 35 with casters for moving left and right, front and back.
35 is installed.

Reference numeral 36 denotes a vertical movement mechanism for the seedling raising device 29, which is provided on one side of the seedling box transfer device 28, and includes a support frame 37 that faces each other in plan view in the front and rear and left and right directions.
..., the above-mentioned seedling raising device 29 is arranged so as to fit from the side between these four erected support frames 37, and a vertically movable lifting frame 38 is fitted into the support frames 37, A rack 38a is integrally attached to the lifting frame 38, and a lifting motor M3 with a pinion 39b pivotally supported is provided on the supporting frame 37 on the side of the seedling box transfer device. The elevating frame 38 is configured to move up and down by rotation. A lift arm 3 protruding laterally on the side of the seedling box transfer device of the lifting frame 38...
8b... is attached, and this lift arm 38b... supports the front and rear support bars 31, 31 of the lowermost stage of the seedling raising device 29 fitted in the lifting frame 38...
The entire seedling raising device 29 is configured to be able to move up and down.

Reference numeral 40 denotes a movable stopper device for receiving the transfer of the seedling boxes A, which is located on the upper surface of the rear end side of the sorting transfer device 23 and simultaneously receives the front ends of the two rows of left and right seedling boxes A', A' being transferred. In this state, when the two rows of seedling boxes A' and A' on the left and right are received, the cylinder device 42 is actuated by the detection switch Sw14, which is turned on.
It is configured to move upward to release the receiving state.

43 is also a movable stopper device, which is
Contrary to the above, this movable stopper device 43 is located on the upper surface of the seedling box transfer device 28 corresponding to the front and rear intermediate portions of the seedling raising device 29, and is normally positioned above so as not to receive the seedling box A'. It is attached to a cylinder 45 that is activated to a receiving state by turning on a detection switch Sw1, which will be described later.

The detection switch Sw1 is located at the rear end of the seedling box transfer device 28, and detects the seedling boxes A', which have been transferred in two rows.
It is attached to a fixed stopper 46 that catches A' when it reaches its rear end, and detects the arrival of seedling boxes A' and A'.

The detection switch Sw2 is connected to the movable stopper 4.
3 and detects that two rows of seedling boxes on the left and right are received by the movable stopper 43.

Reference numerals 48 and 49 are seedling box pushing devices, which are located on the opposite side of the seedling box transfer device 28 and push two seedling boxes parallel to each other from side to side on the front and rear sides of the seedling box transfer device 28, respectively. A' and A' are simultaneously pushed onto the support bars 31... of the seedling raising device 29, and these pushing plates 48a, 4
9a is attached to push rods 48b and 49b which are moved in and out by means of pinion gears rotated by motors M1 and M2 and racks that mesh with the pinion gears. And the motor M1 is connected to the switch Sw2.
When turned on, the push rod 48b is rotated in the normal direction, and the push rod 48b is pushed out, and the seedling boxes A' and A' are pushed into the seedling raising device 29. When this is completed, the switch Sw6 is turned on and the motor M
Switch when 1 is reversed and the original state is restored.
The configuration is such that rotation of the motor M1 is stopped by Sw3. Similarly, motor M2 rotates in the normal direction when switch Sw1 is turned on.
It is configured so that it reverses when Sw5 is turned on and stopped when switch Sw4 is turned on.

Sw15 is a changeover switch for changing the vertical movement pitch of the vertical movement mechanism 36, and the support beam 31 of the seedling raising device 29 is attached to each of the front and rear elevating frames 38, 38.
...A cam body 57 provided with latches 57a having the same pitch as the upper and lower pitches L, and a cam body 58 having latches 58a at intervals of twice the pitch L are provided, and the respective latches 58a are detected on the support frame 37 side. Switches Sw9 and Sw9' are provided to stop the rotation of the lifting motor M3 when the switches Sw9 and Sw9' contact the latch position and turn on.
9' are wired in parallel so that the active side can be freely selected and switched.

Reference numeral 61 denotes a floating prevention device, a metal fitting 6 installed upright on the frame 28a on the side of the seedling raising device 29 of the seedling box transfer device 28.
The rollers are rotatably supported by the seedling box pushing devices 48 and 49, and guide the seedling box A' by pressing it against the upper surface of the outer frame of the seedling box A', thereby ensuring that the seedling raising device 29 is securely moved. It is for guiding to the upper surface of the receiving bar 31.

The switch Sw7 detects that the lift arm 38b of the vertical movement mechanism 36 has reached the lowest end, and the switch Sw8 detects that the lift arm 38b of the vertical movement mechanism 36 has reached the lowest end.
This is to detect that 8b has reached the top end.

The electric control circuit shown in FIG. 10 will be described in detail along with an explanation of its operation.

Next, to explain the operation of the above example in detail, first,
First, bed soil is put into the hoppers 6a and 8a, and paddy seeds are put into the hopper 7a. And the vertical movement mechanism 36
The seedling raising device 29 is fitted and set inside the support frame 37.
At this time, the lift arm 38b is
1 and 31 in a state where they are supported. In this state, first, when the main switch MSw is turned ON, the electromagnetic switch MS9 is activated and the contact MS-9 is activated.
close and rotate motors M6a and M6b.

Next, when the push button switch PB-1 is pressed, the electromagnetic switch MS5 is actuated and is self-held by the contact MS-5, causing the motor M3 of the vertical movement mechanism 36 to rotate forward and lift the lift arm 38b. and,
When the top is reached, switch Sw8 is activated and switch CR is activated.
3 is energized and is self-held by contact CR-3. In addition, the switch is connected by another contact CR-3.
Since MS7 is energized, the switch MS5 is reset by the operation of another contact, and the lift arm 3 is reset.
8b stops at the upper end.

That is, the receiving surface of the lowermost receiving bar 31 of the seedling raising device 29 is set at exactly the same height as the upper surface of the seedling raising box transfer device 28.

In addition, the contact is activated by excitation of the switch MS7 mentioned above.
MS-7 is closed, motor M4 and motor M
7 rotates. That is, by the action of the electric control circuit described above, the empty seedling boxes A are sequentially transferred one by one by the conveyor belts 3, 3, . After being uniformly supplied and irrigated, seeds are sown by a seeding device 7, and then covered with soil by a soil covering device. Then, it is sent later by the transfer conveyor 12 of the transfer device 10.

When the switch Sw10 located at the rear of the conveyor 12 detects the arrival of the sown seedling box A', the switch MS8 is energized, is self-held by the contact MS-8, and is connected to another contact MS-8. Therefore, motor M5 is rotated. Therefore, the lift chains 13a, 13a... of the transfer device 10 are rotated, and the seedling box A' on the transfer conveyor 12 is moved to the receiver 1.
It will be received and lifted at 4.14.

At this time, the seedling box A' leaves the conveyor 12 due to the detection of the switch Sw10 during the transfer without being caught by the stopper etc.
Immediately after the seedlings in seedling box A' are watered, they are lifted without moving and are lifted accurately.

When the seedling box A' is lifted upward in this manner, the switch Sw11 detects the seedling box A' and the motor M5 is stopped. At the same time, switch CR
4 is energized, contact CR-4 is operated and self-held at the same time.

In addition, the solenoid SOL can be activated by the separate contact CR-4.
1 is activated and pushes out the lifted seedling box A'. Subsequently, switch 12 is actuated, switch CR5 is energized and is self-held by contact CR-5, while at the same time extrusion is stopped by another contact CR-5.

Furthermore, another switch Sw12' is activated, and after a slight delay due to the timer T2, the extrusion device 15 of the sorting transfer device 23 reciprocates once for each two activations of the seedling box A', and the seedling boxes are placed in two rows on the left and right. Sort A′.

In addition, another contact CR-5 allows the solenoid SOL to
2 works, the extrusion piston is retracted, and the switch is turned on.
It is stopped by Sw13.

In this way, the seedling boxes A are sorted into two rows on the left and right on the sorting and transferring device 23 and transferred to the rear.

Then, when the two rows of seedling boxes A' and A' on the left and right being transferred are detected together by the switch Sw14, the timer T
1 is activated, contact T-1 is closed, and the solenoid
The SOL 4 is activated, and the cylinder device 42 is activated to release the preceding seedling box A' from the state in which it was received, and to send the seedling boxes A' and A' back in a parallel state on the left and right. The seedling box is then transferred onto the seedling box transfer device 28 and transferred to the rear end side.

Then, the two rows of left and right seedling boxes A', A' are received by the fixed stopper 46 on the rear end side of the transfer device 28, and when the switch Sw1 detects this,
The switch MS1 is energized and self-held by the contact MS-1, and at the same time, the motor M1 of the pushing device 49 is rotated by another contact MS-1, and two seedlings are placed on the support bar 31 at the rear of the bottom stage of the seedling raising device 29. Boxes A and A will be pushed in at the same time.

At this time, the seedling boxes A', A' that are about to be pushed in have their front and rear upper surfaces covered by the rollers 64 of the floating prevention device 61,
It is pressed and guided at 64 to ensure that it is pushed in.

Next, when switch Sw4 is turned on, switch MS
2 is energized and at the same time self-held, the switch MS1 is energized by another contact MS-2, reverses the motor M1, and pulls back the pushing device.

In addition, due to the excitation of the switch MS1, another contact
MS-1 closes and switch CR1 is energized. Then, the solenoid SOL3 is actuated by the contact CR-1, and the cylinder 45 is moved downward to a state where it can receive the seedling box A'.

In this state, when the switch Sw2 attached to the stopper 46 is turned ON, the switch MS3 is energized, the contact MS-3 is closed, and the motor M2 is rotated and the extrusion device 48 is activated to operate the seedling raising device. The two seedling boxes A' and A' are pushed onto the receiving bar 31 at the front of the lowermost stage of the seedling box 29. Subsequently, the switch Sw3 is turned on and the switch MS4 is energized and self-held, and at the same time the switch MS2 is energized by the contact MS4, the motor M2 is reversed, and the pushing device is pulled back.

In this way, the seedling raising boxes A' are placed on the lowermost receiving bars 31, 31 on the front, rear, left and right sides of the seedling raising device 29, and the pushing device 48 at the front works to push out the pushing rods 4.
8b returns and is reset, and switch Sw3
It will turn on.

Then, in advance, each holder 31 of the seedling nursery device 29,
31... When stacking the seedling boxes A' upward, manually switch the changeover switch Sw15 so that the current flows to the switch Sw9 side. In addition, if you want to stack seedling boxes A' with a gap between the top and bottom rows, turn the switch so that the current flows to the switch Sw9' side.
It is a good idea to switch Sw15.

If you switch to either side in this way, the switch will turn on when the switch Sw3 is turned on.
CR2 is illustrated, contact CR-2 closes and the switch is activated.
MS6 is energized, contact MS-6 is closed, and the motor M3 is rotated in reverse order to operate the vertical movement mechanism 36 and move the lift arm 39b downward. At this time the switch
The switch Sw9 or switch Sw9' on the side through which current is applied by switching Sw15 continues to be ON until it corresponds to the latches 57a and 58a of the cam body 57 or 58, and the seedling grower is turned on by the distance between the latches L or L. 29 is lowered and stopped. At this time, either the height of the upper surface of the seedling box transfer device 28 and the height of the second stage support bar 31 from the bottom of the seedling nursery device 29 are approximately the same, or the height of the third stage support bar 31 from the bottom is approximately the same. It will stop when the height is the same.

By repeating the above-mentioned actions, the seedling raising device 29 is intermittently moved downward, and the receiving beams 31, 31
...The seedling boxes A are stacked on top.

In the case of the above example, the entire seedling raising device 29 was configured to be moved up and down by the vertical movement mechanism 36, but it is not necessarily necessary to operate the entire device, and only the support bar 31 portion of the seedling raising device 29 is supported by the lift arm 38b. There is no problem even if it is configured to move up and down, but in this case, it is preferable that the receiving beams 31 be connected at predetermined intervals with ropes or chains, etc., and have a structure in which they are fed out one or two stages at a time. .

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a plan view thereof, and Fig. 3 is an overall side view.
The figure is a side view of the main parts, Fig. 4 is a plan view thereof, Fig. 5 is a simplified rear view of the main parts, Fig. 6 is a side view of the seedling nursery device,
FIG. 7 is a plan view thereof, FIG. 8 is a partially sectional side view of the main part, FIG. 9 is a perspective view of the main part, and FIG. 10 is an electric control circuit diagram. Symbols in the figure: 1 is a seeding platform, 6 is a bed soil supply device, 7
is a seeding device, 8 is a soil covering device, 9 is an irrigation device, 10
12 is a delivery device, 12 is a transfer conveyor, 13 is a lift conveyor, 15 is an extrusion device, A and A' are seedling boxes, X is a seeding machine, and Y is a seedling box transfer processing device.

Claims (1)

[Scope of Claims] 1 Seedlings are sown by a seeding device 7 in seedling boxes sequentially transferred by a transfer conveyor 4, and seedling boxes A' covered with soil by a soil covering device 8 are transferred to a lift conveyor 13 and other seedling box transfer devices. 28, the seedling box A' transferred by the transfer conveyor 4 is placed on the terminal side of the transfer conveyor 4 in a plane approximately at the same height as the transfer conveyor 4. A transfer conveyor 12 that continuously transfers the transfer in the same direction; and a lift conveyor 13 that extends vertically on both left and right sides of the transfer conveyor 12.
13, seedling boxes being moved on inheritance conveyor 12
Receiver 1 that supports the lower surface of A' from below on both left and right sides
4 and 14, and pushes out the seedling boxes A' lifted in a horizontal position by the lift conveyors 13 and 13 in the same direction as the transfer direction of the transfer conveyor 12.
5, the extrusion device 15 is an extrusion device using an air cylinder device, and this air cylinder device moves between the left and right lift conveyors 13, 13 in the direction of movement of the transfer conveyor 4. A lift delivery device for seedling boxes located above the rear end of the transfer conveyor 4 in the traveling direction and above the seedling box entry side of the lift conveyors 13, 13 so as to operate in the front-back direction.