JPH044488Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a seedling adsorption device for taking out seedlings of onion or the like from a seedling box in order to transplant them.

(Prior Art) Conventional methods for transplanting seedlings such as onions include a tape seedling method and a mechanical transplant method using a belt conveyor as disclosed in Japanese Patent Publication No. 54-22891.

(Problems to be solved by the invention) The former method of tape seedlings reduces the occurrence of missing plants and crowded plants, but requires a lot of effort to prepare.
The latter mechanical transplantation method is automated and highly efficient, but has the problem of easily producing missing plants and crowded plants.

Therefore, semi-automation could be considered, in which the seedlings are automatically supplied from the belt conveyor to the planting disk, but the seedlings are manually supplied to the belt conveyor to ensure that each seedling is placed one by one. However, picking up seedlings one by one with one's fingers is extremely inefficient, and also causes the problem that the spacing between the seedlings placed on the belt conveyor becomes irregular.

(Means for Solving the Problems) In the present invention, a plurality of suction members 24 are provided in the suction box 17, and the seedling head a is suctioned and held by the suction members 24, so that the seedling A is removed from the seedling. The device is configured so that it can be taken out from the box 6, thereby solving various problems of the prior art.

That is, the features of the specific solution of the present invention include a suction box 17 connected to a vacuum device 19, and a plurality of suction holes 25 attached to this suction box 17 for suctioning the seedling head a. The suction member 24 has a suction member 24 formed therein, and the suction member 24 has an end surface that is attached to the membrane 3 having the suction holes 25.
1, and between this membrane 31 and a mounting part 32 attached to the suction box 17, there is a pair of left and right holding parts 33 thicker than the membrane 31 and thinner than the mounting part 32. The membrane 3 is formed between the left and right holding parts 33.
1 is connected at the deformation permitting portion 34 so that the tips thereof come close to each other by suction.

(Function) When the suction hole 25 of the suction member 24 is applied to the head a of the seedling A in the seedling box 6 and the inside of the suction member 24 is made negative pressure by the vacuum device 19, the expanding force of the left and right holding parts 33 is applied. The membrane 31, which had been stretched by the strainer, is pulled inside the clamping part 33, and as a result, the left and right clamping parts 33 are deformed so that their tips approach each other via the deformation allowing part 34, and clamp the attached seedling head a. As a result, the seedling A moves inwardly and upwardly from the tip of the holding part 33 and is separated from the non-adsorbed seedlings. After carrying the seedling suction box 17 onto the belt conveyor 14, when air suction by the vacuum device 19 is stopped, the seedling head a is removed by the suction hole 25.
The suction is released, and at the same time, the left and right holding parts 33
returns to its original state, expands the membrane 31, and releases the seedlings A onto the belt conveyor 14.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In Figures 5 and 6, the onion transplanter 1 is attached to the rear of the tractor body 2 via a three-point linkage mechanism 3, and its power is supplied to the tractor body 2.
It is transmitted from PTO shaft 4.

5 is the machine frame of the transplanter 1, 6 is a seedling box attached to the rear of the machine frame 5, 7 is a planting disk rotatably supported on the machine frame 5 via a horizontal shaft 8, and 9 is the left and right sides of the planting disk 7. 10 is a groove making device attached to the machine frame 5 in front of this soil covering and compacting wheel 9, and is supported by the machine frame 5 so as to be rotatable around a horizontal axis. The planting disk 7 rotates in the groove cut by the container 10 to perform the planting work. Reference numeral 11 denotes a gauge wheel that can adjust the groove depth.

A belt conveyor 14 is arranged at the rear of the machine frame 5, and can deliver the seedlings A to the planting disk 7 while transferring them. 15 is a support wheel provided at the rear end of the machine frame 5. A planting mechanism 16 is formed by the planting disk 7, the belt conveyor 14, etc., and power is transmitted from a gear case 12 provided at the front of the machine frame 5 to drive it in the direction of the arrow in FIG.

17 is a hand-held suction box with hose 1
It communicates with a vacuum device 19 via 8. The vacuum device 19 is attached to the back of the gear case 12 of the machine frame 5, receives power from the gear case 12 (or a separately provided drive device), and has an on-off valve 20 installed in the hose 18 or other air suction path. It is being

This on-off valve 20 is operated by a push button or other operating member 22 provided on the handle 21 of the suction box 17.
It can be opened and closed by.

The suction box 17 is handheld and can be moved back and forth from the inside of the seedling box 6 to the upper surface of the belt conveyor 14. A plurality of suction members 24 are provided on the surface 23 of the suction box 17 facing the belt conveyor 14 , and each suction member 24 has a suction hole 25 that can communicate with the on-off valve 20 , that is, the vacuum device 19 . has been done.

The suction holes 25 of the plurality of suction members 24 are formed in accordance with the spacing P of plants to be planted by the planting disk 7, and the distance between the suction members 24 at the front and rear ends and the front and rear end surfaces of the suction box 17 is approximately P. /2.

A suction box 1 is placed on the belt conveyor 14.
A plurality of positioning members 26 are provided corresponding to the length of the suction box 17 that has sucked the seedling A.
By placing the seedlings A between the positioning members 26, closing the on-off valve 20, and releasing the seedlings A, the plurality of seedlings are supplied at the required interval P, and both the previously supplied seedlings and the subsequently supplied seedlings are kept at the required interval. It becomes P.

Reference numeral 27 denotes an auxiliary seat provided in the machine frame 5, on which an auxiliary worker who supplies seedlings can board. In addition, when the transplanting machine 1 is attached to a traveling type moving machine (Tailor) or the like, the auxiliary seat 27 is not provided and the auxiliary worker also supplies the seedlings while traveling.

1 and 2 show a first embodiment of the suction member 24, in which a suction box 17 is attached to the suction member 24.
It is a cylindrical body fitted into a pipe 30 protruding from the lower surface of the cylindrical body, and its end is closed with a membrane 31 having suction holes 25.

The adsorption member 24 is made of elastic and flexible plastic or rubber, and has a cylindrical attachment part 32 with the maximum wall thickness at its upper part, which is fitted onto the pipe 30 and prevented from coming out as necessary. ing. A pair of left and right clamping parts 33 and a deformation allowing part 34 connecting the left and right clamping parts are formed between the attachment part 32 and the membrane 31 at the tip.

The left and right holding parts 33 are integrally molded with the mounting part 32, are thinner than the mounting part 32, and extend from the mounting part 32 in a shape that widens toward the end. It's expanding.

The deformation allowing portion 34 is integrally molded or fused to the holding portion 33 and is thinner than the holding portion 33, for example, has the same thickness as the membrane 31, and allows the left and right holding portions 33 to deform so that their tips approach each other. , acts to pull the tips closer together.

The membrane 31 is extremely thin and flexible, and is fused to the lower edges of the clamping part 33 and the deformation allowing part 34, and has a suction hole 25 smaller than the head a of the seedling A in the center thereof. has been done.

When taking out the seedling A by suction using the suction member 24, after applying the suction hole 25 of the membrane 31 to the seedling head a, the operation member 22 is pushed to open the on-off valve 20, and the vacuum device 19 is used to remove the suction box 17 and suction. Member 24
When the air inside is removed, the suction hole 25 is closed by the head a, and the inside of the suction member 24 becomes negative pressure.

Due to this negative pressure, the membrane 31 and the deformation allowing portion 34 are moved to the adsorption member 2 as shown in FIGS. 1B and 2B.
4 is sucked inward and pulled thereby, the left and right gripping portions 33, which are flared toward each other, are deformed so that their tips approach each other, and finally, as shown in FIGS. 1C and 2C, the seedling head is Hold the seedlings in your arms and lift them up and separate them from other seedlings.

When releasing the seedling A, it is only necessary to close the on-off valve 20, and since there is no negative pressure, the left and right holding parts 3
3 returns to its original expanded state, and the membrane 31 is expanded by its unfolding force.

In the second embodiment of the suction member shown in FIGS. 3 and 4, the left and right holding parts 33 are cylindrical with the same inner diameter as the mounting part 32, and the connection part thereof is thin, and a deformation allowing part 34 for bending is formed. The tips (lower edges) of the left and right holding parts 33 are as shown in FIG. 3B.
The membrane 31 is formed into an arc shape when viewed from the side, and the membrane 31 closes the tip of the holding portion 33 having such a shape.

In the suction member 24' of the second embodiment, the deformation allowing portion 34 is thin, and the left and right holding portions 33 are not flared at the end, but the tips of the holding portions 33 are arcuate, so that the deformation allowing portion 34 is thin and the left and right holding portions 33 are not flared at the end. Similarly, the suction hole 25
While lifting the seedling head a that has been adsorbed to the left and right holding parts 3
It can be held between 3. In addition, the adsorption member 2
In the case of 4', the entire structure including the membrane 31 can be integrally molded.

(Effect of the invention) According to the invention detailed above, the suction box 1
7 is provided with a plurality of suction members 24, it is possible to take out a plurality of seedlings A from the seedling box 6 at the same time, and even with the semi-automatic transplanter 1, efficiency and accuracy can be increased. Deformation allowance part 34
Since it has a pair of left and right clamping parts 33 connected to each other and a membrane 31 that closes the tips thereof, the left and right clamping parts 33 can clamp the seedling head a that has been sucked by the suction holes 25 of the membrane 31. Adsorption and removal from the seedling box 6 can be ensured, and separation from non-adsorbed seedlings is also possible.

[Brief explanation of drawings]

1 and 2 show the first embodiment of the adsorption member of the present invention, FIGS. 1A to C are longitudinal sectional views showing the seedling adsorption process, and FIGS. 2A to C are FIGS. FIGS. 3 and 4 are bottom views of the adsorption member corresponding to C, respectively, show the second embodiment of the adsorption member, FIGS. 3A and B are longitudinal sectional front views and side views, and FIGS. 4A and B. 5 is a perspective view of the entire seedling adsorption device, and FIG. 6 is a side view of the entire transplanter incorporating the seedling adsorption device. 1... Transplant machine, 6... Seedling box, 7... Planting disk, 14... Belt conveyor, 17... Suction box, 19... Vacuum device, 24... Suction member, 2
5... Adsorption hole, 31... Membrane, 32... Mounting part, 3
3... Holding part, 34... Deformation allowing part, A... Seedling.

Claims (1)

[Scope of utility model registration request] Suction box 17 connected to vacuum device 19
and a plurality of suction members 24 which are attached to the suction box 17 and have suction holes 25 formed therein for suctioning the seedling head a, and the suction members 24
is a cylindrical body whose end face is closed with a membrane 31 having the suction holes 25, and between this membrane 31 and a mounting part 32 attached to the suction box 17, there is a wall thicker than the membrane 31 and closer to the mounting part 32. A pair of thin-walled left and right holding parts 33
The seedling adsorption device is characterized in that the left and right holding parts 33 are connected by a deformation allowing part 34 so that the tips of the left and right holding parts 33 can be brought close together by suction of the membrane 31.