JPS6283813A - Onion harvester - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Industrial Application Field> Undeveloped IJI relates to onion harvesting machines, and more specifically, while digging up onions from the field, the leaves attached to the dug up onions are specially harvested. This invention relates to an onion harvesting machine that can automatically cut onions without any difficulty.

(Prior Art) If onions dug from the field are left with leaves attached, the leaves consume nutrients during the onion drying process, resulting in a decline in yield and quality.

Therefore, conventionally, the onion leaves that are still planted in &11@ are cut with scissors, etc., and then dug up with a suitable digging machine, or the onion leaves that have been dug up are cut with scissors, etc. Ta.

(Problems to be Solved by the Invention) However, it is virtually impossible to cut leaves by hand during the limited harvesting and sowing season with only the input of normal labor; Some kind of improvement was also requested from the point of view of increasing production efficiency.

By rotating a pair of left and right cylinders with spiral protrusions on their outer circumferential surfaces mutually inwardly, onions are conveyed by the conveying action of the protrusions, and the onions are removed by using the downward pulling action of the protrusions. There is also a method in which the leaves of the onion are torn off, but in this case, the main part of the onion is pulled out along with the leaves, resulting in a significant drop in quality.

The present invention has been made in view of the actual situation, and provides an onion harvesting machine that can dig up onions from a field and automatically cut leaves without damaging the dug-up onions. The purpose is to

(First Step for Solving the Problems) The present invention provides a scraper that is tilted forward and downward, which is mounted so as to be movable up and down in the lower part of the vehicle body near the I-end of the vehicle, and which uses the vicinity of the rear end of the scraper as the conveyance starting end. Comb teeth are implanted at predetermined intervals on the conveyance surface of the lifting conveyor that forms the upward conveyance surface. A pair of left and right cylinders extending in the front-rear direction that are driven to rotate inwardly are disposed between a lower part near the rear end of the lifting conveyor and a part near the rear end of the vehicle body, and A screw conveyor is constructed by helically planting resin m fibers at a predetermined pitch.

Further, the present invention is characterized in that a cutter for cutting onion leaves is disposed between the rear end of the screw conveyor and the discharge chute provided at the rear end of the vehicle body.

<Function> The onions dug up by the scraper are conveyed upward by a lifting conveyor to remove soil or stones, and then, while being conveyed by the conveying action of the screw conveyor, the onions are planted on the outer peripheral surface of the screw conveyor. The onions are arranged in an inverted state by the engagement between the resin fibers and the leaves. Then, the onion leaves held in a predetermined inverted state are automatically cut by a cutter while being conveyed to the discharge chute.

(Embodiment) Fig. 1 is a schematic side view of the whole showing an embodiment of the present invention, and Fig. 2 is a schematic side view of the same, showing a drive wheel l and a control wheel 2.
A steering wheel 4 and a steering seat 5 are attached to the front end portion of the traveling vehicle body 3 equipped with a steering wheel 4 and a steering seat 5.

Further, at the front lower part of the traveling vehicle body 3, there is a trt+ in the front position.
A scraper 6 is mounted so as to be adjustable up and down via a bracket (not shown), and the rear end of this scraper 6 and the lower end of a lifting conveyor 7 are connected via an upper separation conveyor 8. In addition, the L classification conveyor 8 connects a pair of left and right chains wound around a driving wheel 8a and a driven wheel 8b via a rod 8C18C extending in the left-right direction, and maintains a predetermined interval between these rods 8c, 8c. By making it hold in value.

While separating the onions from foreign substances such as soil or stones by gravity, the onions dug up by the scraper 6 are conveyed to the transfer starting end of a lifting conveyor 7, which will be described later. Further, this upper separation conveyor 8 is adjusted to swing in the downward direction as the scraper 6 moves up and down using its rear end as a fulcrum.

The lifting L conveyor 7 has the function of lifting and conveying the onions received from the upper separation conveyor 8 toward the rear and upper side, and removing soil, stones, etc. mixed in the onions. , the ends of the rods 7b, 7b having comb-shaped protrusions 7a, 7a arranged in parallel at predetermined intervals are connected to the left and right chinos 7C17C.
are connected at a predetermined pitch, and as the cheno rotates, the green onion protrudes from the -? a, 7a to scoop up and transport.

Below the rear end of the jiij recording ball conveyor 7, the front end of the forward rake conveyor 9 faces in the front-rear direction. This screw conveyor 9 has protrusions 9b and 3 made of resin fibers on the outer peripheral surfaces of a pair of left and right cylinders 9a, 9a along the front-rear direction.
By rotating the cylinders 8a and 9a mutually inwardly by a drive mechanism (not shown), the onions discharged from the lifting conveyor 7 are moved backward. While conveying toward the protrusion 9b
, 9b pull the leaves downward and arrange the onions in an inverted state. 9c is a guide provided for inverting onions that are not upside down.

In addition, at the rear end of the city running vehicle body 3, there is a shoe NOa of 51 that slopes toward one side of the body, and a second chute that slopes toward either side of the body. 10b is provided, and the discharge chute 10 and the rear end of the screw conveyor 9 are connected to a discharge conveyor 11 by a pair of left and right V bells H1a and llb.
are connected via. And one V bell)lla
A cylindrical receiver 12a disposed between the V-belt 11b and a disc-shaped cutting blade 12b disposed between the other V-belt 11b are connected to the V-belt 11b.
A cutter 12 for cutting onion leaves is constituted by rotating and holding the cutter 12 with a bell 1111 and rotating it with a drive means (not shown).

Note that the parts discharge chute 10 has both shoes HOa and 10b.
As shown by the solid line in FIG.
The discharge is guided to one side, as shown by the dashed line in the figure (
By tilting the second shoe) 1 (lb) in the opposite direction, the onion discharge position can be changed to the center of the vehicle body. be.

In the above configuration, when the height of the scraper 6 is adjusted using an adjustment device (not shown) and the traveling vehicle body 3 is moved forward while rotating each part, the roots of the onion planted in the field are cut by the scraper 6. .

The onions dug up from the field by the scraper 6 are pushed by the onions that were first dug up, move backward on the upper surface of the scraper 6, and are supplied to the upper separation conveyor 8. and,
The onions are conveyed rearward by the upper separation conveyor 8, and dirt, stones, etc. adhering to the onions are separated.

Furthermore, the onions that have been conveyed to the rear end of the upper separation conveyor 8 are scooped up by the projections 7a, 7a of the lifting conveyor 7, and are gradually conveyed upward to the beginning of the screw conveyor 9.
The part is supplied falling. It should be noted that since the foreign matter is removed by the worker sitting on the auxiliary seat 13 during the lifting conveyance by the lifting conveyor 7, only onions are supplied to the starting end of the screw conveyor 9.

The onions supplied to the starting end of the screw conveyor 9 are scooped and engaged by the projections 8a and 9a of the conveyor 9, and are gradually conveyed backwards with the leaves being drawn downward (see Fig. 3). Note that it is convenient if a reversing guide 9C is provided above the screw conveyor 9 as in the embodiment, since the onions are always reversed due to the buffering with this guide 8C.

Furthermore, the onions that have been conveyed to the rear end of the screw conveyor 9 as described above are transferred to the discharge conveyor 11 as they are, and are conveyed rearward, but during this conveyance, a force 7 force 12 is applied. As it acts, the leaves are cut off. The onion from which one leaf has been cut off is supplied to the discharge shoe 10 from the discharge conveyor If, and is discharged to a predetermined position by the guiding action of the shoe 10. For this reason, onions with cut-off shells are neatly thrown over the field where the harvester passes.

In the example L, the onion release position can be changed by changing the angle of the second chute lOb, but this is not necessarily limited to the example.
Further, in the embodiment, an upper separation conveyor 8 is interposed between the scraper 6 and the lifting conveyor 7 to increase the separation efficiency of L and stones, but in some cases, the upper separation conveyor 8 may be omitted. Furthermore, in the embodiment, by configuring the cutter 12 as a so-called disk cutter,
Although the cutter is designed to be miniaturized, any specific configuration may be used as long as the cutter cuts the onion leaves being conveyed from the screw conveyor toward the discharge chute.

(Effects of the Invention) According to the present invention, onions dug from the field are arranged in an inverted state and then fed to the cutter to automatically cut the leaves, so it is possible to cut the leaves automatically. No manual leaf cutting required.

In addition, since the onion is cut upside down and the leaves are cut, the cut leaves are not scattered on the onion, and the subsequent picking up work is easy. Since the protrusions formed in a spiral shape on the surface of the onion are made of resin fibers, the onions will not be damaged by engagement with the protrusions, and mechanized harvesting will reduce the quality of the onions. There's no possibility.

[Brief explanation of drawings]

Figure 1 is a schematic side view of an undeveloped IJ;
Figure 3 is a schematic plan view, Figure 3 is a sectional view illustrating the arrangement of onions conveyed by the screw conveyor, and Figure 4 is a sectional view illustrating the conveyance status by the discharge conveyor and the cutting status of leaves by the force lid. FIG. 5 is a front view of the discharge chute seen from the rear. l... Drive wheel 2... Control wheel 3... Traveling vehicle body 4... Control handle 5... Control seat
6... Scraper 7... Lifting conveyor 8
...Top separation conveyor 9...Screw conveyor lO...Discharge shoe)! 2...Cutter
13...Auxiliary seat patent applicant Gensho Engineering Co., Ltd. Agent Patent attorney Nakayama
Information Figure 3 Figure 4 Figure 5 - Procedure Ne City Council 7!3 (Voluntary) 1114, 1985

Claims (1)

[Claims] A scraper that is inclined forward and downward is mounted on the lower part near the front end of the traveling vehicle body so as to be able to rise and fall, and the conveyance surface of the lifting conveyor is formed with a conveyance surface facing rearward and upward, with the vicinity of the rear end of the scraper as the conveyance starting end. A pair of left and right cylinders along the front-rear direction that are driven to rotate inwardly are arranged between a lower part near the rear end of the lifting conveyor and near the rear end of the car body. A screw conveyor is constructed by planting resin fibers spirally at a predetermined pitch on the circumferential surface of each cylinder, and onion leaves are placed between the rear end of the screw conveyor and a discharge chute provided at the rear end of the vehicle body. An onion harvesting machine characterized by being equipped with a cutter for cutting.