JPH0228648Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention is a transplanter that automatically transplants so-called paper tube seedlings grown in paper tubes to the main field, and more specifically, the present invention is a transplanter that automatically transplants soiled seedlings grown in paper tubes to the main field. When fed to the seedling sorting conveyor, good paper tube seedlings with leaves that have grown to a normal size and defective paper tubes that have no leaves or have not grown to a normal size due to poor germination or growth, etc. Seedlings are sorted into paper tubes, and only the selected good paper tube seedlings are conveyed in a line by a conveyor and supplied to a seedling planting mechanism for predetermined transplantation. Regarding equipment.

[Problem that the idea aims to solve]

In this type of transplanter, in order to ensure that the selected good-quality paper-tube seedlings are supplied to the seedling planting mechanism at equal intervals, the good-quality paper-tube seedlings are always closely aligned on the alignment conveyor. Ideally, it would be best to let
This can be achieved by setting the speed ratio of the seedling supply conveyor, the seedling selection conveyor, and the alignment conveyor to correspond to the average seedling yield rate (ratio of good paper tube seedlings to all paper tube seedlings). However, in reality, the number or closeness of good paper tube seedlings aligned on the alignment conveyor depends on the number of defective paper tube seedlings that are sorted and discharged from the system on the seedling sorting conveyor. fluctuations occur. More specifically, when a predetermined number of good-quality paper tube seedlings are closely aligned on the aligned conveyor, if more good-quality paper tube seedlings are fed than the conveyance and sending out capacity, the situation will increase. This may cause undesirable situations for transplanting, such as things that get stuck and fall out of the system, or things that are pressed and deformed and lose their feeding posture to the seedling planting mechanism. If the number of seedlings increases, the number of good paper tube seedlings on the aligned conveyor will be less than the predetermined amount, and if gaps are created between the good paper tube seedlings, the feeding interval to the seedling planting mechanism will be uneven, resulting in missing plants. .

[Means to solve the problem]

The paper tube seedling sorting and conveying device of the present invention was proposed with the aim of solving this problem, and the speed ratio of the seedling supply conveyor, the seedling sorting conveyor, and the alignment conveyor corresponds to the average seedling yield rate. The setting is such that a predetermined number of good paper tube seedlings are always closely aligned on the alignment conveyor, and the state of swelling of the good paper tube seedlings on the alignment conveyor is detected by a detection device. Accordingly, emphasis is placed on increasing the speeds of the seedling supply conveyor and the seedling selection transport conveyor to change the speed ratio, or returning the changed speed ratio to its original state.

[Effect]

As a result, when the number of good paper tube seedlings on the alignment transport conveyor exceeds the required number, the supply amount by the seedling supply conveyor and the seedling selection transport conveyor is reduced, and as the supply amount decreases, the alignment transport conveyor When the number of good paper tube seedlings above reaches the required number,
The amount of seedlings supplied by the seedling supply conveyor and the seedling selection conveyor can be increased in their original state, and the good paper tube seedlings on the alignment conveyor can be kept in a predetermined closely aligned state at all times.

【Example】

The illustrated embodiment will be described in detail below. FIG. 3 shows a transplanter equipped with the paper tube seedling selection and conveyance device 5 of the present invention. A is an L-shaped machine body on the side, and this machine a has a connecting hole 2 for connecting to a towing vehicle such as a tractor in the front upright part, and a machine frame 1 that stands up in the center of the horizontal base part a'. The paper tube seedling sorting and conveying device 5 is installed, a seedling stand 3 is installed behind it, and a seat 4 is installed in front. Reference numeral 6 denotes a holding conveyor consisting of a pair of long and short belts vertically arranged opposite to the sending end of the paper tube seedling sorting and conveying device 5; 7 refers to a pair of rotating conveyors disposed opposite to each other at the lower sending end of the holding conveyor 6; The seedling planting mechanism consists of a disk; 8 is a pressure ring provided at the rear of the seedling planting mechanism 7; and 9 is an opener provided in front of the seedling planting mechanism 7. When the paper tube seedlings placed on the seedling stand 3 are manually supplied to the paper tube seedling sorting and conveying device 5, the device 5
The paper tube seedlings are automatically sorted and conveyed by the conveyor 6, and then passed to the seedling planting mechanism 7, which releases the paper tube seedlings into the furrows created by the opener 9. Suppression ring 8 suppresses it and plants it. The rotation of the suppression wheel 8 is transmitted to the seedling planting mechanism 7 via a chain 12 hooked between a chain wheel 11 fixed to its axle 10 and a chain wheel 14 fixed to the rotating shaft 13 of the seedling planting mechanism 7. It is also transmitted to the paper cylinder seedling sorting and conveying device 5 and the clamping conveyor 6 via an intermediate shaft 16 connected to a bevel gear 15 fixed to the rotating shaft 13, and drives each part thereof. The details of the paper tube seedling sorting and conveying device 5 of the present invention are as follows. A is a seedling supply conveyor consisting of a belt 17 wound around a pulley supported on the machine frame 1, 18 is a seedling presser made of sponge mounted on a shaft above the sending end, and 19 is mounted on a shaft in front of the sending end. Gears 21 and 2, which are also made of sponge and have different diameters, are fixed to a pulley shaft 20 at the sending end of the seedling supply conveyor A.
2 are meshed with gears 23 and 24 fixed to the shafts of the seedling presser ring 18 and the seedling separation wheel 19, respectively, so that as the seedling supply conveyor A moves in the direction of arrow A, the seedling presser ring 18 and the seedlings are separated. The separation wheels 19 each rotate in the direction of arrow B. As a result, the series of good paper tube seedlings P and defective paper tube seedlings P' loaded by the worker on the seedling supply conveyor A are fed out in front of the sending end of the seedling supply conveyor A by the seedling presser wheel 18. By the way, the seedling separation wheel 19, which rotates faster than the seedling holding wheel 18, separates the seedlings from the following ones. 29, 38, 42, 43, 47, and 50 are rotatable at their base ends relative to the machine frame 1 so that they are aligned at a required interval in a horizontal plane below the delivery end of the seedling supply conveyor A. The rotating shaft lever 50 is supported on the chain wheel 6 by the rotation of the intermediate shaft 16.
3. As it rotates through the chain 63',
The other rotary shaft rods 29, 38, 42, 43, and 47 rotate in unison, and the rotation is switched between high and low speeds by an electromagnetic clutch 65, as will be described later. 26... is a string-like belt installed between pulleys 25, 25' fixed to rotating shaft levers 29, 38, and runs in the direction of arrow C as the rotating shaft levers 29, 38 rotate. 45 and 45' are wing pieces 46 wound around and mounted between pulleys 27 and 44 fixed to rotating shaft rods 42 and 43.
Rotating shaft rods 42, 43 with attached belt and string belt
The robot travels in the direction of arrow C due to the rotation of . Reference numeral 28 denotes a string-like belt installed between the pulley 25 of the rotating shaft rod 29 and the above-mentioned pulley 27, one end of which is parallel to the string-like belt 26, and the other end is attached with wing pieces 46. It is made parallel to the belt 45 and the string belt 45', and the required length of the central part is stretched over the hollow space S formed between the pulley 25' of the rotating shaft lever 38 and the pulley 44 of the rotating shaft lever 43,
It travels in the direction of arrow C by the rotation of the rotating shaft rods 29, 42. 33 is a wide belt fixed to the outer surface of the string belt 31;
is wound in a side spindle shape around the pulleys 30, 30' fixed to the respective tip ends of the rotating shaft levers 29, 47, and the floating pulley 32 supported by the rotating shaft lever 43, and the floating pulley 32 is attached to the pulley 30,
30', the upper surface of the wide belt 33, that is, the pulleys 30, 32
The part running between the upper sides of the belt 26, 2
It is gradually inclined upward from the pulley 30 side toward the pulley 32 side so as to be higher than the running surfaces of the pulleys 8, 45, and 45'. Reference numeral 33' denotes a wide belt fixed to the outer surface of the string-like belt 37. A portion that is wound around floating pulleys 35 and 36 supported by protruding shaft rods 40' and 40'' in a triangular shape, and runs between the lower side of the wide belt 33', that is, the lower side of pulleys 34 and 35. is joined to the high position side of the upper surface of the wide belt 33, and by rotation of the rotating shaft 38,
It travels in the direction of arrow H via gears 39, 41, shaft rod 40, etc. The above-mentioned string belt 26..., 28, 45',
Belt 45 with wing pieces 46, wide belts 33 and 3
Reference numeral 3' collectively constitutes a seedling sorting and conveying conveyor B, and the sorting and conveying of good and defective paper tube seedlings P and P' by the seedling sorting and conveying conveyor B is carried out as follows. The string-like belts 26..., 28 carry the separated good and bad paper tube seedlings P, P' sent out from the seedling supply conveyor A and separated into individual paper tubes. ..., 28 to receive it and convey it in the direction of arrow C. At this time, the good paper tube seedlings P having normally growing leaves are placed on the upper surface of the receiving end of the wide belt 33, and after being conveyed a little, the leaves are transferred to the upper and lower wide belts 33'. , 33, and which does not have a normal leaf part, the defective paper tube seedling P' that does not have a normal leaf part is not pinched by the leaf part, and therefore only the paper tube is transferred to the string belt 26...,
It will be in a state where it is supported by 28. The above-mentioned good paper tube seedling P is attached to the string-like belt 2.
When the paper cylinder is to be positioned in front of the delivery end of the paper cylinder, the lower end of the paper cylinder is supported by the string-like belt 28, and the leaf part is supported by the upper and lower wide belts 33',
33, it passes through the space S between the pulley 25' and the pulley 44, and the wing piece 46
It is transferred onto the attached belt 45 and the string belt 45'. The above-mentioned defective paper tube seedlings P' are on wide belts 33', 3
Since there is no leaf part to be held between the paper tubes 3 and the lower end of the paper tube is only supported by the string-like belt 28, the paper cylinder loses its balance and falls into the above-mentioned space S when it comes off the string-like belt 26. It is discharged outside the conveyance system. In this way, the good and bad paper tube seedlings P, P' are sorted out, and only the good paper tube seedlings P are moved further forward by the string belts 28, 45' and the belt 45 with wing pieces 46. It will be carried out. In the above, the holding of the leaves of the good paper tube seedling P by the wide belts 33', 33 is carried out by the string-like belts 28,
45' and the belt 45 with wing pieces 46 are arranged so that they are released in the middle of conveyance, thereby ensuring the transfer of the good paper tube seedlings P to the belts 45', 45. I'm making it into something. In addition, the above-mentioned pinching of the leaves of the good paper tube seedling P is performed widely and firmly by the upper and lower wide belts 33', 33, and the wide belt 3
3 on the upper side of belts 26, 28 and 45, 4
Since it is set higher than the running surface of the paper tube 5', the upper half of the paper tube or the leaf part itself does not hang down into the space S, especially when the space S is transported. Therefore, troubles such as getting caught in pulleys, etc. will not occur. Next, C is a pulley 51 fixed to the rotating shaft lever 50.
and a floating pulley 52 that is loosely fitted to the rotating shaft lever 47. At least both upper and lower ends of the paper cylinder are supported horizontally, and the good paper cylinder seedlings P are conveyed in a closely aligned state in the direction of arrow C. D is a transfer conveyor consisting of a string belt 49 wound around between the pulley 27 of the rotating shaft 42 and a floating pulley 48 loosely fitted to the rotating shaft 47, and is a seedling sorting conveyor B. This is for conveying the good paper cylinder seedlings P that have been sorted out in the direction of arrow C and transferring them to the alignment conveyor C mentioned above. 57 is above the sending end of the aligned conveyor C;
Therefore, there is also a seedling holding ring made of sponge fixed to the rotary shaft 54 positioned above the rotary shaft 50 and supported on the machine frame 1, and which is controlled by the rotation of the rotary shaft 50 through gears 55 and 56. At the same time, it rotates in the direction of the arrow, and the good paper cylinder seedlings P at the sending end of the aligned conveyor C are fed forward and supplied to the clamping conveyor 6. As described above, the good paper tube seedlings P are fed from the holding conveyor 6 to the seedling planting mechanism 7 and planted therein. By the way, for example, for bead paper tube seedlings, the average ratio of good paper tube seedlings to all paper tube seedlings is approximately 90.
%. Therefore, in this embodiment, the speed ratio of the alignment conveyor C and the seedling supply conveyor A is approximately 1:1.2, and the speed ratio of the alignment conveyor C and the seedling sorting conveyor B and transfer is set to approximately 1:1.2. The speed ratio with conveyor D is set to approximately 1:3, and the speeds of seedling supply conveyor A, seedling sorting conveyor B, and transfer conveyor D are made faster than the speed of alignment conveyor C. As long as the ratio with the paper tube seedlings is the same as the average seedling yield rate, the good paper tube seedlings P are always closely aligned on the alignment conveyor C. However, the number of good paper tube seedlings P aligned on the alignment conveyor C and the closeness of the seedlings P' are determined by the number of defective paper tube seedlings P' that are sorted by the seedling sorting conveyor B and discharged outside the system. Therefore, the average seedling yield rate may vary regardless of the above-mentioned average seedling yield rate, and some of the paper tube seedlings P may bulge on the aligned conveyor C and fall out of the system, or may become deformed due to pressure and become unplanted. If there is something that disrupts the feeding posture of the attaching mechanism 7, or if the amount of good paper tube seedlings P conveyed by the seedling selection conveyor B and the transfer conveyor D becomes too small, the good paper tubes on the alignment conveyor C may Gaps are created between the seedlings P, and the feeding intervals to the seedling planting mechanism 7 are uneven, resulting in missing plants. In order to deal with this situation, the present invention
A detection device E is provided, and based on detecting the swelling state of the good paper tube seedlings P on the alignment conveyor C, the speeds of the seedling supply conveyor A, the seedling selection conveyor B, and the transfer conveyor D are reduced. The conveyance supply amount is reduced, and when the good paper tube seedlings P on the aligned row conveyor are closely aligned in the required state as it decreases, the speed of each conveyor is returned to the original state and the conveyance supply amount is reduced. We are trying to keep it in its original state by increasing it. The detection device E detects the swelling state of the good paper tube seedlings P on the aligned conveyor C and turns on and off an electromagnetic clutch 65, which will be described later, thereby controlling the speed of each conveyor and controlling the supply amount. It may be anything that can be regulated, and is not limited to a special one, but in this embodiment it consists of a detection belt 60 and a micro switch 61. The detection belt 60 is wound and suspended relatively loosely between a loosely fitted pulley 59 and the rotation shaft 54 around a shaft 58 supported on the machine frame 1 so as to be located above the rotation shaft 47. The lower running section runs parallel to the upper running surface of the string belt 53 of the aligned conveyor C at a required interval above and below, that is, at an interval slightly wider than the diameter of the good paper tube seedlings P. The micro switch 61 has its detection end 62
It is brought into contact with the inner surface of the lower running portion of the detection belt 60. Next, reference numeral 64 indicates a large chain wheel attached to the rotating shaft lever 50, and as the electromagnetic clutch 65 provided to the rotating shaft lever 43 is turned on, the rotation of the rotating shaft lever 50 is controlled by the large chain wheel 64, the chain 70, and the rotating shaft. Chain wheel 66 on the rod 43
etc., to the rotary shaft rod 43, causing it to rotate. Furthermore, the rotation of the rotary shaft rod 43 is controlled by the rotation of the rotary shaft rod 43.
chain wheels 66' on 3, 42, 47, 38 and 29;
67, 68, 69 and 29', and the rotating shaft rods 42, 4 through the chain 71 etc. mounted thereon.
7, 38, and 29, causing them to rotate at the same speed. By the rotation of the above-mentioned rotating shaft rods, the alignment conveyor C, the seedling sorting conveyor B, and the transfer conveyor D are in a relationship in which they normally run at a speed ratio of 1:3. 69' is a chain wheel provided on the rotating shaft lever 38, and a chain 70' is connected between it and the chain wheel 71 provided on the pulley shaft 20.
is mounted on the chain wheel 7 by the rotation of the rotating shaft 38
1. Seedling supply conveyor A via pulley shaft 20 etc.
is set to run normally at a speed ratio of 1.2:1 with the aligned conveyor C. 72 is a ratchet 7 attached to the rotating shaft rod 50
It is a small chain wheel with three wheels, and a chain 74 is mounted between the chain wheel 68' and the rotating shaft lever 47. Therefore,
As the rotary shaft rod 43 and the like rotate all at once as described above, the small chain wheel 72 also rotates, but at this time the ratchet 73 causes it to idle. During normal running of each conveyor, even if the supply of good and bad paper tube seedlings P and P' is at the average seedling yield rate, good and bad paper tube seedlings P and P are supplied from the seedling supply conveyor A. As long as ' is supplied, subsequent good paper tube seedlings P will be fed to the place where the required number of good paper tube seedlings P are closely aligned on the alignment conveyor C. That is, transfer conveyor D
The number of good paper tube seedlings P on the aligned transport conveyor C gradually increases and eventually swells. When the good paper tube seedlings P on the alignment conveyor become swollen in this way, the detection end 62 of the micro switch 61 detects this via the detection belt 60, thereby turning off the electromagnetic clutch 65. do. As a result, the rotation of each rotating shaft lever other than the rotating shaft lever 50 is changed from that caused by the large chain wheel 64 to that caused by the small chain wheel 7.
Switch to 2. That is, as the electromagnetic clutch 65 is turned off, the rotation shaft 43
When the rotation of the rotary shaft 50 approaches the rotational speed of the rotary shaft 50, the rotation of the rotary shaft 50 is transmitted to the rotary shaft 43 etc. via the small chain wheel 72 etc. by the action of the ratchet 73. As a result, the seedling selection conveyor B and the transfer conveyor D are made to run at a low speed that is slightly faster than the alignment conveyor C, and the seedling supply conveyor A
to run at a speed approximately 0.4 times slower than that of the aligned conveyor C. Due to this low speed running, the amount of good paper tube seedlings P on the aligned conveyor C is reduced, and when the operation of the micro switch 61 due to the above-mentioned swelling is canceled, the electromagnetic clutch 65 is turned on again and each conveyor is made to run normally.

[Effect of the idea]

As is clear from the above description, the present invention provides the following effects. The seedling sorting conveyor supports the lower end of good paper tube seedlings with a string-like belt, and securely conveys the normal-sized leaves by holding them between a pair of upper and lower wide belts, and rejects defective paper tubes. As for seedlings in a paper tube, only the lower end of the paper tube is supported by a string-like belt, so the balance is disturbed and the seedlings are accurately discharged out of the system. The speed ratio of the seedling supply conveyor, the seedling selection conveyor, and the alignment conveyor is adjusted to correspond to the average seedling yield rate, and a predetermined number of good paper tube seedlings are always closely aligned on the alignment conveyor. At the same time, the speed ratio of the seedling supply conveyor and the seedling sorting conveyor is lowered to change the speed ratio as the detection device detects the swelling of good paper tube seedlings on the alignment conveyor. The changed speed ratio is restored to its original state again, so when the number of good paper tube seedlings on the alignment transport conveyor exceeds the required number, the supply amount by the seedling supply conveyor and the seedling selection transport conveyor is reduced, and As the supply amount decreases, when it reaches the required set number, the supply amount by the seedling supply conveyor and the seedling sorting conveyor can be increased to its original state, thereby increasing the number of good sheets on the alignment conveyor. The tube seedlings can always be kept in close alignment.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a plan view, FIG. 2 is a side view, and FIG. 3 is a schematic side view of a transplanter equipped with the device of the embodiment. P, P′...Good, defective paper tube seedlings, A...Seedling supply conveyor, B...Seedling selection conveyor, C...Aligned conveyor, E...detection device.

Claims (1)

[Scope of utility model registration request] A seedling sorting conveyor is equipped with a string-like belt that supports the lower end of the paper tube of paper tube seedlings, and a pair of upper and lower wide belts that clamp leaves of normal size from above and below. a seedling supply conveyor that supplies tube seedlings; a lined conveyor that receives good paper tube seedlings with normal-sized leaves that have been sorted by the seedling sorting conveyor and conveys them toward a seedling planting mechanism; A detection device is installed so as to be able to detect the swell of good paper tube seedlings on the aligned conveyor, and the speed ratio of the seedling supply conveyor, the seedling selection conveyor, and the aligned conveyor is determined to obtain an average value. The system is set so that a predetermined number of good-quality paper tube seedlings are always closely aligned on the alignment conveyor in accordance with the seedling rate, and the swell status of good-quality paper tube seedlings on the alignment conveyor is detected. The method is characterized in that the speed ratio of the seedling supply conveyor and the seedling selection transport conveyor is changed by lowering the speed of the seedling supply conveyor and the seedling selection conveyor in accordance with the detection by the device, or the changed speed ratio is returned to the original state again. Paper tube seedling sorting and conveying device for a transplanter.