JPH0748006Y2 - Transplanter seedling selection and transport device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a seedling selection / conveying device of a transplanting machine for automatically transplanting soiled seedlings such as paper tube seedlings to a field.

[0002]

2. Description of the Related Art Conventionally, soiled seedlings received by a seedling feeding conveyor are sorted into good seedlings and bad seedlings by a seedling sorting conveyor, and only good seedlings are conveyed and supplied to a seedling planter for desired transplantation. There are various kinds of transplanting machines as described above, and in particular, as a seedling selecting / conveying apparatus including the seedling supplying conveyor and the seedling selecting conveyor, for example, one described in Japanese Patent Publication No. 3732 is known.

As shown in FIG. 5, in this seedling selecting / conveying apparatus, the seedling supplying conveyor 1 and the seedling selecting conveyor 2 both convey the soil-laden seedlings P in the direction orthogonal to the traveling direction of the machine body. However, they are installed upside down at required intervals with their conveying directions reversed, and a conveying speed is set between the sending end 3 of the seedling supply conveyor 1 and the receiving end 4 of the seedling selection conveyor 2 thereof. A pair of long and short transfer conveyors 5 and 6 which are set faster than the supply conveyor 1 are vertically stretched.

[0004]

In the long transfer conveyor 5 described above, the upper end portion 7 is opposed to the front side of the delivery end 3 of the seedling supply conveyor 1, and the delivery end 3 of the seedling supply conveyor 1 and the retaining ring 8 are provided. The soil-embedded seedlings P protruding from the space are brought into contact with the upper end portion 7 to be separated from the succeeding soil-embedded seedlings P and directed downward at a speed faster than that of the seedling feeding conveyor 1 in cooperation with the short transfer conveyor 6. It is to be transported.

In other words, the long transfer conveyor 5 is faster (actually 3 to 5 times faster) than the seedling feeding conveyor 1 in order to separate the soil-laden seedlings P continuously fed from the seedling feeding conveyor 1 from the succeeding ones. The transfer conveyor 6 is short in order to cooperatively convey the separated soil-bearing seedlings P.
Must also be similarly fast.

However, the soiled seedling P after the separation is
The runout of the transfer conveyors 5 and 6 traveling at high speed and the clamping pressure at the lower ends of the transfer conveyors 5 and 6 wound around the rollers make it easier to remove the soil.

The short transfer conveyor 6 is opposed to the long transfer conveyor 5 with the upper end portion 9 of the short transfer conveyor 6 located below the delivery end 3 of the seedling supply conveyor 1, and the long transfer conveyor 5 The soiled seedlings P are sandwiched by and and the soiled seedlings P are conveyed downward toward the receiving end of the seedling selection conveyor 2 in the sandwiched state. Before being sandwiched by, it rocks at a position facing the space 10 formed between the arc side part of the upper end 9 of the short transfer conveyor 6 and the arc side part of the delivery end 3 of the seedling supply conveyor 1, It may cause a void or disturb your posture.

Further, the soil-bearing seedlings P conveyed by the two transfer conveyors 5 and 6 fall to the receiving end 4 of the seedling selection conveyor 2 at a high speed, but the impact also causes the soil removal.

[0009] In addition to such soil removal and disturbed posture, it has a bad influence on the accuracy of sorting good seedlings and bad seedlings by the seedling sorting conveyor 2 and other operations during the subsequent transportation, which hinders correct transplantation and grows. There were problems such as trouble.

According to the present invention, the conveying speed in the later-described inclined traveling section corresponding to the transfer conveyor is set to be the same as that of the supply conveyor, and the above-mentioned gap is not formed between the seedling supply conveyor and the inclined traveling section. Therefore, the problem is to be solved.

[0011]

Means for Solving the Problems The seedling selecting and conveying device of the transplanter of the present invention is as follows. A seedling supply conveyor 19 that conveys the soil-bearing seedlings P in a direction orthogonal to the traveling direction of the machine body 16.
And a seedling selection conveyor 20 that conveys the soil-bearing seedlings P in a direction that is also orthogonal to the direction of movement of the transplanter body 16 and that is opposite to the seedling supply conveyor 19 above and below, with a required spacing h. The bridge is erected.

The seedling supply conveyor 19 has its delivery end 29.
The front side is an inclined traveling section 30 that travels obliquely downward and outward. Outside the inclined traveling section 30, an inclined conveyor 33 having the same conveyance speed as the seedling feeding conveyor 19 and the inclined traveling section 30 positions its upper end portion 34 in front of the delivery end portion 29 of the seedling feeding conveyor 19. Lower end 35
Is placed above the receiving end side of the seedling selection conveyor 20 and stretched. A seedling separating wheel 39 having a peripheral speed higher than the conveying speeds of the seedling supply conveyor 19, the inclined traveling unit 30, and the inclined conveyor 33 is provided between the lower end portion 35 of the inclined conveyor 33 and the receiving end side of the seedling selection conveyor 20, and It is mounted at a position facing the lower end of the inclined traveling unit 30.

[0013]

[Effect] The seedlings with soil supplied by the seedling supply conveyor in a close row are conveyed while being held in a close row by the delivery end portion of the seedling supply conveyor, the inclined traveling section and the inclined conveyor,
Separated into individual pieces by the seedling separation wheel above the receiving end side of the seedling selection conveyor and received by the seedling selection conveyor,
Therefore, a selection is made between good products and defective products.

Since the seedling supply conveyor has an inclined traveling portion ahead of its delivery end portion, and therefore the delivery end portion and the inclined traveling portion are continuous with each other, the transfer of the soil-bearing seedling from the delivery end portion to the inclined traveling portion is performed. Is performed smoothly without rocking, and moreover, since the delivery end portion and the inclined traveling portion and the inclined conveyor have the same conveying speed, the rotating force is not applied to the soil-grown seedlings being sandwiched and conveyed, There is no need to let the soil-attached seedlings pass through or disturb the posture.

[0015] Since the close row soil seedlings are separated into individual pieces by a separating wheel at a position close to the receiving end side of the seedling selection conveyor, each soil seedling is immediately received by the receiving end at a short distance. It will not collapse or drop when it is received. In addition, unlike the case where the soil-seedlings after separation are further conveyed by sandwiching the required distance with a belt at a relatively high speed and then received by a seedling selection conveyor, there is no risk of causing trouble during the conveyance.

[0016]

EXAMPLE A A is a seedling feeding device comprising a seedling sorting / transporting device a according to an embodiment of the present invention and a seedling sorting / feeding device b continuous thereto. This seedling feeder A is a body 16 of the present transplanter equipped with a colter 12, a drive wheel 13, a pair of left and right seedling planting devices 14, 14, an opner 15 and the like facing each other.
A worker who is installed in the center of the plant, and who is seated in the seat 17 in the front of the plant, supplies the seedlings with soil P placed on the seedling stand 18 in the rear to the seedling sorting and conveying device a of the embodiment of the present invention. ,
Only the good seedlings selected from the soil-attached seedlings P are seedling planting devices 1
4, 14 are to be planted in the field (Figs. 1 and 2).

The seedling sorting / transporting device a is generally composed of a body 1
6 is a lateral seedling supply conveyor 19 that conveys the soil-bearing seedlings P in the direction of arrow A that is orthogonal to the traveling direction of 6 and the direction of arrow B that is also the direction that is orthogonal to the traveling direction of the machine body 16 but is opposite to the seedling supply conveyor 19. A lateral seedling selection conveyor 20 that conveys the soil-containing seedlings P is superposed on and vertically with a required space h (FIGS. 2 and 4).

The seedling selection conveyor 20 supports root support belts 22 for supporting roots 21 of soil seedlings P, root support belts 24 ₁ and 24 ₂ for supporting roots 23, and leaves 25. The leaf portion support belt 26 includes a leaf portion holding belt 27 that holds the leaf portion 25 in the up-down direction with the leaf portion support belt 26.

The root support belt 22, the root support belts 24 ₁ and 24 ₂ , the leaf support belt 26, the leaf holding belt 27, etc. are installed in parallel with each other, and the root support belts 24 ₁ and 24 are provided. _An outlet 28 is formed between the _two .

The receiving end sides of the root support belt 22, the root support belt 24 ₁ and the leaf support belt 26 (see FIGS. 2-4).
Soiled seedlings P received on the right side of) are transported in the direction of arrow B, and when the seedlings are good seedlings having leaf portions 25 that have grown to the required size, the leaf portions 25 are attached to the leaf portion support belt 26. and it passes through the drop port 28 in a state of being sandwiched between the leaves clamping belt 27 reaches the fundamental unit support belt 24 _2, continue to be conveyed further to the next-stage conveyer (hereinafter assortment line transport conveyor 49).

When the seedling P is a poor seedling having no leaves 25 or insufficient growth, the soil seedlings P are not supported or pinched by the leaf support belt 26 and the leaf gripping belt 27, and thus lose their balance and drop. It is dropped from the mouth 28 and discharged to the outside of the system. That is, the seedling selection conveyor 20 temporarily receives all the soil-embedded seedlings P on the receiving end side, but eventually selects only the soil-embedded seedlings P that are good seedlings and conveys them to the next-stage parallel conveyance conveyor 49. It is a thing.

By the way, the seedling supply conveyor 19 has a required length extending ahead of the delivery end 29 thereof, and the upper guide roller 31 is provided so that the seedling supply conveyor 19 becomes an inclined traveling portion 30 which travels obliquely downward to the outside. And a lower guide roller 32 which is axially mounted at a position close to the receiving end side of the seedling selection conveyor 20. So, of course,
The inclined traveling unit 30 travels at the same speed as the transport speed to the delivery end 29 of the seedling supply conveyor 19.

Reference numeral 31 'is an auxiliary roller that is axially supported below the upper guide roller 31, and by this auxiliary roller 31',
After the inclined traveling unit 30 travels downward, it is configured to travel upward through the lower guide roller 32 in parallel with the downward traveling. By this, seedling supply conveyor 1
The above-mentioned space h is secured between the upper and lower sides of the seedling selecting conveyor 20 and the seedling selecting conveyor 20.

Reference numeral 33 denotes a slant conveyor which is stretched opposite to the slant running section 30 and is covered with a thick elastic material. The slant conveyor 33 has an upper end 34 in front of the delivery end 29 of the seedling supply conveyor 19. The upper and lower guide rollers 36 pivotally supported at positions higher than the upper guide roller 31 and the lower guide roller 32, respectively, so that the lower end portion 35 is located at a required upper position on the receiving end side of the seedling selection conveyor 20 while facing each other. , 37, and the conveying speed thereof is the same as that of the inclined traveling section 30 and thus also of the seedling supply conveyor 19.

Reference numeral 38 denotes a delivery end portion 2 of the seedling supply conveyor 19.
9 is a retaining ring that is mounted on a position above 9 and facing the upper end portion 34 of the inclined conveyor 33, and the peripheral speed thereof is the same as the transport speed of the seedling supply conveyor 19. Soil seedling P is
The seedlings are fed in close contact with each other by the seedling feeding conveyer 19, and while being pressed by the holding ring 38, protruding from between the feeding end portion 29 and the tilting conveyer 33,
The inclined conveyor 33, the delivery end portion 29, and the inclined traveling portion 30 continue to change their orientation in a line and are nipped and conveyed downward.

In the above, when the soil-bearing seedlings P are conveyed along the delivery end portion 29 of the seedling feeding conveyor 19 in an arc, the space between the adjacent ones spreads out, causing separation, though incomplete. In some cases, the inclined traveling section 3
0 and the conveying speed of the inclined conveyor 33 are the same,
The above-mentioned sandwiching conveyance is performed downward in the state of being in close contact again.

Reference numeral 39 denotes a seedling separating wheel which is erected at a position between the lower end portion 35 of the inclined conveyor 33 and the receiving end side of the seedling selection conveyor 20 and which faces the lower end portion of the inclined traveling portion 30. The peripheral speed of the inclined traveling unit 30 and the inclined conveyor 33
It is set to be 3 to 5 times faster than the transport speed of.

The closely lined seedlings with soil P sandwiched and conveyed by the inclined traveling unit 30 and the inclined conveyor 33 are the inclined conveyor 33.
At the same time when the sandwiched state is released near the lower end portion 35 of the seedling, the seedling separating wheel 39 is brought into contact with the seedling separating wheel 39 and is rapidly fed, and is completely separated from the succeeding one, and is received by the receiving end side of the seedling selecting conveyor 20. As a result, they will be sorted into good seedlings and bad seedlings.

Next, the seedling distributing and supplying device b is a soiled seedling P which is a good seedling selected and conveyed by the seedling selecting and conveying device a having the above construction.
Are distributed to and supplied to the left and right seedling planting devices 14, 14, which are a distribution transfer mechanism unit 42 and left and right branch transfer mechanism units 43 for branching and guiding the distributed products.
43 and supply transfer mechanism parts 44, 44 for supplying it to the seedling planting devices 14, 14.

The distribution transfer mechanism unit 42, the branch transfer mechanism units 43 and 43, and the supply transfer mechanism units 44 and 44 are
Left and right upper belts 45, 45 wound around three axes, left and right lower belts 46, 46, and outer left and right belts 47, 47 wound around two axes outside thereof are substantially symmetrical (in FIG. 2). Is configured.

Reference numeral 48 is a distribution cam axially mounted in a gap forming a boundary between the distribution transfer mechanism unit 42 and the branch transfer mechanism units 43, 43. The distribution cam 48 is a seedling selection / transport device a.
Are sorted by, aligned closely with the aligning conveyor 49, and then sent out from between the holding wheel 50,
This is for alternately distributing the soil-bearing seedlings P transferred to the distribution transfer mechanism unit 42 at a predetermined interval to the left and right branch transfer mechanism units 43, 43.

[0032]

[Effect of the Invention] As is clear from the above description,
According to the seedling selecting / transporting device of the transplanter of the present invention, the following effects can be obtained.

The soil-added seedlings supplied in a close row by the seedling supply conveyor are conveyed while being held in a close row between the sending end portion of the seedling supply conveyor, the inclined traveling section and the inclined conveyor, and the seedling selection conveyor conveys the seedlings. Above the receiving end side, the seedlings are separated into individual pieces by a seedling separating wheel and are received by the seedling sorting conveyor, where the sorting of good products and defective products is performed accurately and smoothly.

Since the seedling supply conveyor has an inclined traveling portion ahead of its delivery end portion, and therefore the delivery end portion and the inclined traveling portion are continuous with each other, the soil seedlings are transferred from the delivery end portion to the inclined traveling portion. Is performed smoothly without rocking, and moreover, since the delivery end portion and the inclined traveling portion and the inclined conveyor have the same conveying speed, the rotating force is not applied to the soil-grown seedlings being sandwiched and conveyed, There is no need to let the soil-attached seedlings pass through or disturb the posture.

The close row of soil-grown seedlings are separated into individual pieces by a separating wheel at a position close to the receiving end side of the seedling selection conveyor, and each soil-grown seedling is immediately received by the receiving end at a short distance. It will not collapse or drop when it is received. In addition, unlike the case where the soil-seedlings after separation are further conveyed by sandwiching the required distance with a belt at a relatively high speed and then received by a seedling selection conveyor, there is no risk of causing trouble during the conveyance.

[Brief description of drawings]

FIG. 1 is a schematic side view of a transplanter equipped with an embodiment of a seedling sorting and conveying device of the present invention.

FIG. 2 is an overall front view of an embodiment of the seedling sorting / transporting device of the present invention.

FIG. 3 is a plan view of the above.

FIG. 4 is a front view of the main part of the above.

FIG. 5 is an overall front view of a conventionally known seedling sorting and conveying device.

[Explanation of symbols]

 P Soiled seedling h Interval 16 Airframe 19 Seedling supply conveyor 20 Seedling selection conveyor 29 Sending end 30 Sloping traveling part 33 Sloping conveyor 34 Upper end 35 Lower end 39 Seedling separating wheel

Claims (1)

[Scope of utility model registration request] 1. A seedling feeding conveyer for conveying soil-grown seedlings in a direction orthogonal to the traveling direction of the machine body, and a soiled seedling in a direction also orthogonal to the traveling direction of the machine body and opposite to the seedling feeding conveyor. In a seedling sorting and conveying device of a transplanter, which is constructed by vertically stacking a seedling sorting conveyor for transporting the seedling sorting conveyor at a predetermined interval, the seedling feeding conveyor travels diagonally downward and outward from the delivery end. Being an inclined traveling part, an inclined conveyor having the same conveying speed as that of the seedling feeding conveyor and the inclined traveling portion is provided outside the inclined traveling portion, and its upper end is opposed to the front of the delivery end of the seedling feeding conveyor. It is positioned and the lower end is located above the receiving end side of the seedling selection conveyor and stretched, and the seedlings having a peripheral speed higher than the conveying speed of the seedling supply conveyor, the inclined traveling section and the inclined conveyor. The wheel is between the lower end of the inclined conveyor and the receiving end side of the seedling selection conveyor, and is aerial at a position facing the lower end of the inclined traveling portion, the transplanter characterized by Seedling sorting and conveying device.