JPH0649533B2 - Seedling box stacking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a stacking device for seedling boxes.

(Prior art) Conventionally, seedling boxes that have been sowed are stacked on a trolley in an extension of the seedling box seeding device, which is provided with a soil supplying device, a watering device, a sowing device, etc. on a conveyor. Stacking devices are known.

(Problems to be solved by the invention) However, in the known seedling box stacking device, it is necessary to replace the seedling box with a new one after loading the seedling box on the dolly. When the dolly is replaced, the motor of each part is stopped. Let

Up to this point, the conventional technology has caused a new problem in the timing of stopping the motor. That is, even if the motor is stopped, the residual grain seeds flow down from the delivery port of the seeding section, and the portion is thickly sown, so that an uneven seedling is formed. If you put the seedlings out of alignment, they will cause damage. As a countermeasure against this, it is preferable to prevent the residual grain seeds from flowing down, but since this cannot be done, even if the residual grain seeds fall, thick seeding is not performed.

(Means for Solving the Problem) Therefore, according to the present invention, in the extension portion of the transfer conveyor 1 of the seedling box seeding device, the conveyer conveyor 16 which is at least 4 times wider than the lateral width of the seedling box 4 in the traveling direction is provided. And a cutout portion 30 is provided in the center of the left and right from the intermediate portion of the conveyor 16 to the end portion 18, and a right side passage 28 and a left side passage 29 through which the seedling boxes 4 pass in a row are formed on both sides of the cutout portion 30. In the cutout portion 30, there is provided a trolley 31 on which the seedling boxes 4 are transferred by being pushed from the right side passage 28 and the left side passage 29. ,
When the carriage 31 reaches the lowermost position, the motors of the respective parts are stopped, but the drive motors 60 of the transfer conveyor 1 and the seed supply part 75 rotate until the front and rear ends of the seedling box 4 reach the position directly below the seeding feeding port 76. This is a seedling box stacking device.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. 1 is a motor 6
A transfer conveyor for sowing that rotates at 0, and a seed supply unit 75 is provided on the conveyor 1. Reference numeral 76 is a delivery port of the seed supply unit 75, 77 is a delivery roll of the seed supply unit 75, and the delivery roll 77 is rotated by the motor 60.

A detection device 79 for detecting the positions of the joints 78 at the front and rear ends of the seedling box 4 is provided on the side of the transfer conveyor 1, and a detector 80 is provided on the front side of the seedling box 4. By detecting the detection body 80 by the detection device 79, the joint portion 78 is detected, and the motor 60 is stopped when the joint portion 78 is just below the feeding port 76.

A motor 61 is provided at the end of the conveyor 1 via the connecting portion 2.
A take-up conveyor 3 having a fast-forwarding function that rotates with is connected to the take-up conveyor 3, and a lift device 5 is provided behind the take-up conveyor 3.

The lift device 5 moves the seedling box 4 fast-forwarded by the transfer conveyor 3 upward by angles 7 fixed to a vertically swinging chain 6 provided on the left and right sides thereof. Chain 6
Is wound around an upper rotary shaft 10 and a lower rotary shaft 11, and one end of the upper rotary shaft 10 is connected to a rotary shaft 13 of a motor 9 via a belt 12.

A switch 8 is provided at the end of the transfer conveyor 3. The switch 8 energizes the motor 9 when the front end portion of the seedling box 4 conveyed by the transfer conveyor 3 comes into contact with it.

A sensor 14 that operates when the lifted seedling box 4 collides and an extruding device 15 that operates by the sensor 14 are provided at an upper position of the lifting device 5, and the extruding device 15 moves the seedling box 4 on the angles 7 and 7. It is extruded on the conveyor 16.

The conveyor 16 has a large number of guide rolls 19. The guide rolls 19 are simultaneously rotated by a motor 51, and the start end side 17
The seedling boxes 4 are conveyed in two rows from the to end portion 18.
The guide roll 19 of the conveyor 16 has a length of at least four lateral widths of the seedling box 4, and a starter side 17 is provided with a seedling box lateral distribution device 20.

The distribution device 20 includes an underframe 2 that forms the conveyor 16.
1. A push rod 22 provided in one side of the push rod 22 that is long in the left-right direction, a moving distributor 25 provided at the tip of the push rod 22, and a rack surface formed on the upper surface side of the push rod 22 are engaged. The push rod 22 is mounted on the upper surface of the guide roll 19 at a position higher than the seedling box 4 and passing above the seedling box 4.

Reference numeral 26 denotes a switch of the forward / reverse rotation motor 24, which is provided at the front position of the extrusion device 15, and the forward / reverse rotation motor 24 is turned on each time the tip of the seedling box 4 extruded by the extrusion device 15 comes into contact with the switch 26. Then, the forward and reverse rotations are sequentially repeated, and the seedling boxes 4 extruded in the central portion of the conveyor 16 are distributed to the left and right of the conveyor 16.

A U-shaped cutout 30 is provided on the left and right sides of the end portion 18 from the center of the transport conveyor 16 in the moving direction (see FIG. 2), leaving a passage for one seedling box 4. A dolly lift 27 is provided.

The passage is formed into a right passage 28 and a left passage 29. The rear end of the cutout portion 30 is opened to the outside, and a stacking carriage 31 is provided in the cutout portion 30 so as to be able to move in and out.

32 is a frame body of the truck lift 27. The dolly 31 that fits into the dolly lift 27 is formed in such a size that two seedling boxes 4 can be placed side by side in the left-right direction, and is transported to a warehouse for germination and greening. The rotating shafts 33, 33, 3 are provided on the left and right sides of the upper and lower portions of the frame 32 of the carriage lift 27, respectively.
4 and 34 are attached to the shafts, and sprockets 35 and 36 are fixed to the rotating shafts 33, 33, 34 and 34, respectively.
5. Chains 37 and 37 are wound around 5 and the sprocket 36. The chain 37 has the same angle 3 as the lift device 5.
Install 8, 38.

A step motor 39 is provided on the upper portion of the frame 32 on the starting end side.
The rotary shaft 40 of the motor 39 and the rotary shaft 33 on either the left or right side are connected by a chain 41, and the rotary shaft 40 and the rotary shaft 33 on the left or right side are connected via a reverse rotation gear 42. Connect with chain 43.

In order that the dolly 31 can move in and out of the dolly lift 27,
The rail 44 of the caster 81 of the truck 31 is provided. Reference numeral 45 is a switch for stopping the drive motor 51 of the guide roll 19 of the conveyor 16 and other various motors when the carriage 31 moves downward and the casters 81 reach the rails 44. The motor 60 is the switch 45. OFF
Just make it a separate circuit so as not to stop.

In the right side passage 28 and the left side passage 29, the seedling box 4 is pushed onto the carriage 31 from the right side passage 28 and the left side passage 29, the right front pushing body 46, the right rear pushing body 47, the left front pushing body 48, and the left rear pushing body. 49 are attached, and these right front pushing body 46, right rear pushing body 47, left front pushing body 48, and left rear pushing body 49 have two fork-like pushing portions 50 in their action portions, respectively. This is a structure in which the seedling box 4 is placed on the upper surface of the fork-shaped pushing portion 50 and guided onto the carriage 31.

These are associated with the motor 39,
It is counted when four seedling boxes 4 are supplied to the dolly 31,
The motor 39 rotates a certain angle to lower the cart 31 by one seedling box 4 so that the seedling boxes 4 can be stacked one after another.

That is, the right side passage 28 and the left side passage 29 are formed to have a width such that the seedling boxes 4 sorted to the left and right sides by the seedling box left and right sorting device 20 are fed one by one, and are sorted to the right side. The seedling box 4 advances along the right side passage 28, hits the stopper 69, presses the switch 70 to stop it, and activates the right rear pusher 47 to push the seedling box 4 into the carriage 31.
Then, the seedling boxes 4 distributed to the left side proceed to the left side passage 29 side, hit the stopper 71, press the switch 72 to stop, and activate the left rear pusher 49 by the switch 72 to move the seedling boxes 4 to the carriage 31. When the pushing operation is completed and the right rear pushing body 47 finishes pushing and returns, the switch 62 (FIG. 3) is pushed to operate the air cylinder 52 (FIG. 4), and the link mechanism 53 is operated.
The stopper 54 is rotated from the horizontal position to the vertical state via the stopper 54, and thus the stopper 54 prevents the seedling box 4 from moving along the next right passage 28. A switch 73 (FIG. 3) is provided on the stopper 54, and when the seedling box 4 presses the switch 73, the motor 66 of the right front pusher 46 pushes the seedling box 4 into the carriage 31.

Next, when the left rear pushing body 49 finishes pushing and returns, the switch 64 is pushed to operate the air cylinder 52 in the same manner, and the stopper 55 is rotated from the horizontal position to the vertical state via the link mechanism 53. Therefore, the stopper 55 prevents the seedling box 4 from moving along the next left passage 29. The stopper 55 is provided with a switch 74 (Fig. 3), and the seedling box 4
When the switch 74 presses the switch 74, the motor 66 of the left front pusher 48 pushes the switch 74 into the carriage 31.

In this way, one seedling box 4 is supplied and one dolly 31 is supplied.
When the four seedling boxes 4 are placed on the dolly 31 for convenience, the motor 39 operates to lower the dolly 31 by one step of the seedling boxes 4 so that the seedling boxes 4 can be stacked one after another. To do.

In FIGS. 4 and 5, 56 is a case of the right front pusher 46, 57 is a supporting arm fixed to the upper surface of the case 56, extends in the direction of the notch 30, and has a cylinder 58 perpendicular to the tip thereof.
And a stopper 59 having an inverted triangular shape when viewed from the side is provided at the lower end of the cylinder 58.

When the stopper 59 moves downward, the seedling boxes 4 stacked on the dolly 31 are pushed into the dolly by a certain width on the taper surface to perform positioning, and the stopper 59 prevents the carry-back.

In addition, 63 is a switch which is activated when the right front pusher 46 is returned, and 65 is a switch which is activated when the left front pusher 48 is returned,
67 is a pinion fixed to the rotating shaft of the motor 66, and 68 is a rack formed on the upper surface of each pushing body.

(Operation) Next, the operation will be described.

The motor 60 is energized to transfer the conveyor 1 and the seed supply unit 75.
When the feeding roll 77 is rotated and the seedling box 4 is supplied, when moving below the feeding roll 77 of the seed supply unit 75 by the conveyor 1, the seed pad is supplied, through the connecting unit 2,
The motor 61 transfers it to the take-up conveyor 3 which is fast-forwarding and rotating, advances to the angles 7, 7 and presses the switch 8 at its front end.

Then, the motor 9 is turned on, the chain 6 is rotated, the seedling box 4 is carried upward by the angles 7 and 7, and the sensor 14 is pressed by the seedling box 4.

Then, the pushing device 15 operates to push the seedling box 4 onto the central upper surface of the conveyor 16, and the tip of the seedling box 4 is switched to the switch 26.
(FIG. 1), and the left-right distribution device 20 is operated.

When the switch 26 is turned ON, the forward / reverse rotation motor 24 is normally rotated, the push rod 22 is moved forward by the pinion 23, and the seedling box 4 is moved to the right passage 28 by the moving distribution body 25 fixed to the tip of the push rod 22. Let At this time, the next seedling box 4
However, because of the action of the pushing device 15, the pushing device 22 pushes it onto the central upper surface of the conveyor 16, but since the position of the pushing rod 22 is high, the seedling box 4 goes under the pushing rod 22 and switches at the tip of the seedling box 4. When 26 is pressed and turned on again, the forward / reverse rotation motor 2
4 is reversed, the push rod 22 is retracted by the pinion 23, and the seedling box 4 is pulled and moved to the left side passage 29 by the distributor 25 fixed to the tip of the push rod 22.

Then, the seedling box 4 distributed to the first right side passage 28 advances on the right side passage 28 side by the guide roll 19 rotated by the drive motor 51, and the stopper 54 is moved upward (at this time, the stopper 54 is moving upward). It passes underneath, passes through the stopper 69 at the end and stops, and the switch 70 provided on the stopper 69 is pressed. Then right pusher 4
The motor 66 (FIG. 5) of No. 7 is energized to rotate the pinion 67 fixed to its shaft, and the pushing body 68 meshing with the pinion 67 is moved horizontally by the action of the rack. The seedling box 4 is pushed onto the trolley 31 by the fork-shaped pushing portion 50 at the tip of the pushing body 68.

When the pushing of the right rear pushing body 47 is completed, air is sent to the cylinder 58 to move the inverted triangular stopper 59 provided at the lower portion of the cylinder 58 downward, and the stopper 59 pushes the edge of the seedling box 4. By doing so, the seedling box 4 is moved to a fixed position. Further, since the seedling box 4 is prevented from returning by the downward movement of the stopper 59, when the motor 66 is reversely rotated to return the fork-shaped pushing portion 50, the seedling box 4 remains on the cart 31 and is smoothly stacked. .

When the fork-shaped pushing portion 50 returns to its original position, it collides with the switch 62 and presses it, so that the air cylinder 52
, The stopper 54 is moved downward from the horizontal direction via the link mechanism 53, and the stopper 54 prevents the next seedling box 4 from advancing.

Next, the seedling boxes 4 sorted to the left side are advanced to the left side passage 29 side by the guide roll 19 which is also rotated by the drive motor 51, and similarly the stopper 55 is moving upward, so that it passes under it and ends. It collides with the stopper 71 and stops, and the switch 72 provided on the stopper 71 is pressed. Then, the motor 66 of the left rear pusher 49 is energized to rotate the pinion 67 fixed to its shaft, and the pusher 68 meshed with the pinion 67 is horizontally moved in the direction of the carriage 31 to move the pusher 68. Fork-shaped pushing part 5 at the tip
0 pushes the seedling box 4 onto the dolly 31.

When the pushing of the left rear pushing body 49 is completed, air is similarly sent to the cylinder 58 and the inverted triangular stopper 59 provided at the lower portion of the cylinder 58 moves downward, and the stopper 59 is pushed.
Pushes the edge of the seedling box 4 to place it at a certain position.
To move. Further, to prevent the seedling box 4 from returning, if the motor 66 is rotated in the reverse direction to return the fork-shaped pushing portion 50,
The seedling boxes 4 remain on the cart 31 and are smoothly stacked.

When the fork-shaped pushing portion 50 returns to its original position, it collides with the switch 64 and presses it, so that the air cylinder 52
, The stopper 55 is moved downward from the horizontal direction via the link mechanism 53, and the next advance of the seedling box 4 is blocked.

Next, the seedling boxes 4 sorted to the right side are stopped midway when the stopper 54 is moving downward when advancing to the right side passage 28 side, and the motor 66 of the right front pushing body 46 is stopped by the switch 73 attached to the stopper 54. To the carriage 31 with the right front pusher 46 in the same manner as before.
When the switch returns to the original position and the switch 63 is pressed, the stopper 54 is moved upward and returned to the original position.

Next, the seedling boxes 4 distributed to the left side proceed to the left side passage 29 side and are stopped by the stopper 55, and the motor 74 of the left front pushing body 48 is energized by the switch 74 attached to the stopper 55, and the left front pushing body is the same as before. 3 by 48
1), the left front pusher 48 returns to its original position and the switch 65
When is pressed, the stopper 55 is moved upward and returned to the original position.

In this way, the seedling boxes 4 are sequentially placed on the dolly, and when the four seedling boxes 4 are placed on the dolly 31 for convenience, it is counted, and the motor 39 operates so that the dolly 31 corresponds to one stage of the seedling box 4. It is lowered and the seedling boxes 4 are stacked one after another.

Then, when the carriage 31 descends to the take-out position, the switch 4
5, the motor 51 is stopped to stop the rotation of the conveyor 19, and the carriage 31 is carried out in the meantime. In this case, the other motors are also stopped, but the motor 60 does not turn off and continues to rotate. The transfer conveyor 1 rotates to feed the seedling box 4, while the feeding roll 77 also rotates to continue supplying seeds.

However, when the detection body 80 provided on the front side of the seedling box 4 comes into contact with the detection device 79, the motor 60 is detected and the motor 60 stops, but at that time, the joint portion 78 of the seedling box 4 is just fed out.
Since the seeds fall directly below the seedlings, the seeds that fall after the rotation of the feeding roll 77 has stopped are on the joints 78 and cannot be sown in the seedling box 4.

(Effect) The conventionally known seedling box stacking device is a stacking device for loading seedling boxes onto a trolley.
Replace with a new dolly, but stop the motor of each part when replacing the dolly.

However, even if the motor is stopped, residual grain seeds flow down from the delivery port of the seeding section, and the part is thickly sown, resulting in uneven seedlings. If the seedlings that are not aligned are attached to the rice transplanter as they are, it may cause a malfunction.

However, according to the present invention, an extension of the transfer conveyor 1 of the seedling box seeding device is provided with a conveyer conveyor 16 that is at least four times wider than the lateral width of the seedling box 4 in the traveling direction, and an intermediate portion of the conveyor 16 is provided. From the end portion 18 to the end portion 18, a notch 30 is provided at the center of the left and right sides, and a right side passage 28 and a left side passage 29 through which the seedling boxes 4 pass in a line are formed on both sides of the notch 30. A cart 31 on which the seedling box 4 is transferred by being pushed from the right side passage 28 and the left side passage 29 is provided.
Is provided with descending means for stacking the seedling boxes 4 and gradually descending, and when the trolley 31 reaches the lowermost position, the motors of the respective parts are stopped, but the drive motor 60 of the transfer conveyor 1 and the seed supply part 75 is the seedling box. The front and rear ends of the box 4 are the sowing outlet 76.
Since the seedling box stacking device is configured to rotate until it reaches the position immediately below the motor, the motor 60 is allowed to continue rotating even when the motors of the respective parts are stopped when the carriage 31 is replaced. Therefore, the transfer conveyor 1 and the feeding roll 7
7 continues to rotate to continue supplying seeds, and the motor 60 is stopped when the detection body 80 provided on the front side of the seedling box 4 reaches the detection device 79.
Can be stopped just when it hits just below the feeding port 76,
Seeds that fall after the rotation of the pay-out roll 77 is stopped
This means that the seedling box 4 is not sowed.

[Brief description of drawings]

1 is an overall plan view, FIG. 2 is an enlarged plan view of relevant parts, FIG. 3 is an overall side view, FIG. 4 is a sectional view taken along line AA, FIG. 5 is a plan view of FIG. FIG. 6 is a plan view of the seedling box and the detection device, and FIG. 7 is a side view of the seedling box and the detector. Explanation of symbols 1 ... sowing transfer conveyor, 2 ... connecting section, 3 ... transfer conveyor, 4 ... seedling box, 5 ... lift device, 6 ... chain, 7 ... angle, 8 ... switch, 9 ... motor,
10 ... upper rotary shaft, 11 ... lower rotary shaft, 12 ... belt, 13 ... rotary shaft, 14 ... sensor, 15 ... extrusion device, 16 ... transport conveyor, 17 ... starting end side, 18 ...
... Terminal part, 19 ... Guide roll, 20 ... Left / right distribution device, 21 ... Underframe, 22 ... Extrusion rod, 23 ... Pinion, 24 ... Motor, 25 ... Moving distribution body, 26 ... … Switch, 27 …… lift, 28 …… right passage, 29 ……
Left aisle, 30 ... Notch, 31 ... Cart, 32 ... Frame, 33, 33, 34, 34 ... Rotating shaft, 35, 36 ...
… Sprocket, 37 …… Chien, 38 …… Angle,
39 ... Motor, 40 ... Rotating shaft, 41 ... Chain, 4
2 ... Reverse rotation gear, 43a ... Chain, 43 ... Caster, 44 ... Rail, 45 ... Switch, 46 ... Right front pusher, 47 ... Right rear pusher, 48 ... Left front pusher, 4
9 ... Left rear pusher, 50 ... Pushing part, 51 ... Drive motor, 52 ... Air cylinder, 53 ... Link mechanism, 54
...... Stopper, 55 …… Stopper, 56 …… Case, 5
7 ... Support arm, 58 ... Cylinder, 59 ... Stopper, 6
0 ... Transfer conveyor motor, 61 ... Transfer conveyor motor, 62 ... Right rear pusher switch, 63 ... Right front pusher switch, 64 ... Left rear pusher switch, 6
5 ... Switch on left front pusher, 66 ... Motor on each pusher, 67 ... Pinion, 68 ... Rack, 69 ...
Stopper, 70 ... Switch, 71 ... Stopper, 72
... switch, 73 ... switch, 74 ... switch,
75 ... Seed supply part, 76 ... Seed feeding port, 77 ... Feeding roll, 78 ... Seedling box joint part, 79 ... Detection device,
80 ... Detector, 81 ... caster.

Claims (1)

[Claims] 1. An extension of a transfer conveyor 1 of a seedling box seeding device, wherein at least 4 of the lateral width of the seedling box 4 in the traveling direction is provided.
A conveyor conveyor 16 having a width more than twice as wide is provided, and the conveyor 16
From the middle part of the to the end part 18 and cutout 30 in the left and right center
Is provided to form a right side passage 28 and a left side passage 29 through which the seedling box 4 passes in a row on both sides of the cutout portion 30.
A dolly 31 on which the seedling boxes 4 are transferred by being pushed from the right side passage 28 and the left side passage 29 is provided therein, and the dolly 31 is provided with descending means for stacking the seedling boxes 4 and gradually lowering the dolly 31. When reaching the lowermost part, the motors of the respective parts are stopped, but the drive motors 60 of the transfer conveyor 1 and the seed supply part 75 are made to rotate until the front and rear ends of the seedling box 4 reach the position directly below the seeding and feeding port 76. Seedling box stacking device.