JPH0350659Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to an onion conveying device, which arranges the stems and leaves of the onion in a downward direction while conveying the onion dug up by an onion harvester. Regarding things to be carried out.

(Prior Art) Conventionally, this type of onion conveying device has a method in which a pair of conveying rollers are rotated inwardly toward each other at an appropriate interval, as described in Japanese Patent Publication No. 52-46851, for example. The shafts are freely parallel to each other, an elastic string-like body is spirally wound around the outer periphery of the pair of conveyance rollers in the axial direction, and a large number of elastic protrusions are formed on the outer circumference of the pair of conveyance rollers between the elastic string-like bodies. A protruding structure is known.

Then, as the pair of conveyance rollers rotate, the onion is conveyed by the spiral elastic string-like body of the pair of conveyance rollers, and the onion stems and leaves are tied up by the elastic protrusions, and then the pair of conveyance rollers The onion is introduced between the pipes and the onion is discharged to the discharge end in this state.

(Problem to be solved by the invention) According to the structure in which a large number of elastic protrusions are protruded from the outer periphery of a pair of conveyance rollers between the spiral string-like bodies as described above, the large number of elastic protrusions are Because the onion leaves are separated from each other, depending on the length of the onion leaves, the leaves may not be secured by the many elastic protrusions and may not be introduced between the pair of conveyor rollers. The problem is that there is a lack of certainty that it will lead downwards. In addition, the large number of elastic protrusions are spaced apart from the spiral string-like bodies and protrude between the spiral string-like bodies. Therefore, there is a problem that a large number of elastic protrusions are damaged or cut off. Furthermore, providing a large number of elastic protrusions independently protruding from the outer periphery of the pair of conveyance rollers not only requires a lot of effort, but also poses a problem of lack of stability.

Therefore, the present invention was developed in view of these points, and it is possible to reliably feed the onion leaves between the pair of conveying rollers, and prevent the elastic protrusions that feed the onion leaves from being damaged by stones. It is an object of the present invention to provide an onion conveying device which prevents the onion from being cut and damaged and which can easily and stably hold a large number of elastic protrusions on a pair of conveying rollers.

[Structure of the idea]

(Means for Solving the Problems) The onion conveying device of the present invention has a pair of conveying rollers that are rotatably arranged so as to be rotated inwardly with an interval for introducing onion stems and leaves between them. an elastic conveying protrusion that guides the onion between the pair of conveying rollers and conveys it in the longitudinal direction is provided in a spiral manner on the outer periphery of the pair of conveying rollers in the length direction;
A mounting board having a mounting recess in the length direction along the side opposite to the onion transporting surface of the elastic transport protrusion is removably mounted in a spiral shape, and the above mounting board is attached at a predetermined interval to the mounting recess of the mounting board. A large number of elastic protrusions are fixed and erected higher than the elastic conveying ridges to tie together the onion leaves and guide them below between a pair of conveying rollers.

(Function) According to the onion conveying device of the present invention, the pair of conveying rollers are rotated inwardly, and when the onion is conveyed onto the pair of conveying rollers, the onion is moved by its spiral elasticity. The onion is moved between a pair of conveyance rollers by the conveyance protrusion and conveyed in the conveyance direction, and the onion is conveyed by a large number of elastic protrusions protruding along the rear side of each of the elastic conveyance protrusions. The stems and leaves of the onion are tied together and guided and conveyed downward between a pair of conveyance rollers, so that the onion's posture is adjusted, and the stems and leaves are introduced between a pair of conveyance rollers and suspended downward. It is transported to the unloading end.

(Embodiment) Hereinafter, the structure of an embodiment of the present invention will be described based on the accompanying drawings.

In the figure, 1 is a machine frame of an onion harvesting machine, and in the front part of this machine frame 1, a rotatable running wheel 2, a first conveyor 4 having a digging body 3 at the front end, a first conveyor 4,
A second conveyor 5 is provided so as to be freely rotatable, and the second conveyor 5 is inclined upward after the carry-in section faces the discharge end of the conveyor 4. Further, an onion conveying device 6 and an engine 7 are provided on the machine frame 1, and
A freely movable endless track belt 9 is provided at the bottom of the machine frame 1 and is driven by the engine 7 via an interlocking medium 8.

The onion conveying device 6 is provided with a pair of side frames 10, 10 facing each other on both left and right sides of the machine frame 1, and between the pair of side frames 10, 10, stems and leaves b of onion a are placed between the pair of side frames 10, 10. A pair of conveyance rollers 12, 12 arranged in parallel with a predetermined interval 11
A plurality of sets of conveying roller groups 13 are rotatably mounted on shafts in parallel. In addition, the pair of conveyor rollers 12, 12 in each set are used to handle the onion a, respectively.
The plurality of sets of transport rollers 13, which are rotatably mounted inwardly to each other so as to introduce the stems and leaves b between the pair of transport rollers 12, 12, are connected to the engine 7. are interlocked and connected to each other via an interlocking medium 14.

A pair of conveyance rollers 12, 12 in each set of the first half
has a series of mating grooves 15, 15 on the outer periphery in the length direction.
is formed in a spiral shape at a predetermined pitch, and within the engagement grooves 15, 15 are elastic conveying protrusions 16, each having a trapezoidal cross-section and an elongated shape made of an elastic member such as a canvas-filled rubber plate.
16 is fitted in a spiral shape, and this elastic conveying protrusion 1
6, 16 are detachably fixed at predetermined positions in the system fitting grooves 15, 15 by a plurality of screws 17, 17, and the onion conveying surfaces 18, 18 of the elastic conveying protrusions 16, 16 are It protrudes higher than the outer circumferential surface portions 19, 19 of the respective conveyance rollers 12, 12. In addition, the pair of conveyance rollers 12, 1
One side of the engagement grooves 15, 15 of No. 2, that is, the opening side 20 opposite to the onion conveying surface portions 18, 18,
20, along the opening edges 20, 20, a long plate-shaped mounting board 2 made of metal or synthetic resin, etc.
1 and 21 are spirally wound and removably attached at predetermined positions with a plurality of screws 22, 22, and a plurality of rows of mounting recesses are formed in the width direction of the mounting substrates 21, 21 in the length direction thereof. 23, 23 is the locking protrusion 2
4 and 24 are formed continuously. In addition, a large number of elastic protrusions 25, 25 are fixed at predetermined intervals in the mounting recesses 23, 23 in each row of the mounting substrates 21, 21 at their lower ends by gluing or baking, The large number of elastic protrusions 25, 25 in each row are higher than the elastic conveying protrusions 16, 16 and protrude outward in a spiral manner. Further, a mounting board 21 having the elastic conveyance protrusions 16, 16 of the pair of conveyance rollers 12, 12 and a large number of elastic protrusions 25, 25 fixed close to the rear side surfaces of the elastic conveyance protrusions 16, 16. ，
The pitch between the spirals 21 and 21 is formed into a pitch capable of transporting the onion a.

Therefore, the pair of conveyance rollers 12, 12
is formed into a hollow cylindrical shape from synthetic resin, and rotating shafts 27, 27 are inserted into the hollow portions 26, 26, and these are integrally connected to each other at both ends of the respective conveying rollers 12, 12. Both ends of the rotating shafts 27, 27 are rotatably supported, and one end of each rotating shaft 27, 27 is rotated inwardly in pairs via an interlocking medium. is linked to. One end of the rotating shaft 27 on one side is interlockingly connected to the engine 7 via the interlocking medium 14 .

Next, a pair of conveyance rollers 1 in each set
A cutter 28 for cutting the stems and leaves b of the onion a is rotatably provided between the conveying ends of the onions 2 and 12, and a rotating shaft 29 of each cutter 28 is connected to the engine via a transmission shaft 30 and a power transmission shaft 31. 7 via the interlocking medium 14 so as to be rotatable.

Further, at the rear of each cutter 28, a transverse conveyor 32 is provided for conveying the onion a whose stems and leaves b have been cut and removed by each cutter 28, and at the discharge end of this transverse conveyor 32, the onion a is A container 33 is provided for storing the.

Next, the operation of the above structure will be explained.

The engine 7 is driven to advance the machine, and the power from the engine 7 rotates the first conveyor 4 and the second conveyor 5 clockwise in FIG. The roller group 13 and each cutter 28 are rotated in conjunction with each other in a predetermined rotation direction.

Then, the onions a in the field are dug up by the digging unit 3, or the onions a whose roots have been cut are scooped up, and the soil is shaken off from the onions a by the first and second conveyors 4 and 5. The onion is conveyed while being dropped, and is conveyed from the discharge end of the second conveyor 5 to the carry-in section of the conveyance roller group 13 of the onion conveyance device 6.
In addition, each onion a carried into this conveyance roller group 13
are distributed between each pair of conveyance rollers 12, 12 that are rotated inwardly, and the onions a on the pair of conveyance rollers 12, 12 in each set are distributed along the respective elastic conveyance protrusions. The onion is moved between the pair of conveying rollers 12, 12 and conveyed in the conveying direction by the onion conveying surfaces 18, 18 of 16, 16, and the onion conveying protrusions 16,
A large number of elastic protrusions 25, 25 protruding from the rear side of the onion 16 cause the stems and leaves b of the onion a to be stopped in the vicinity of their original stage, and are then conveyed to the pair of conveyor rollers 1.
As the onion a is introduced downward from within the interval 11 between the onions 2 and 12, the stems and leaves b of the onion a hang downward, and the roots c of the onion a are arranged upward, and the pair of conveying rollers 12, It is transported to the unloading end section of No. 12. Then, the stems and leaves b of each onion a suspended below between the pair of conveying rollers 12 and 12 in each set are cut by the respective cutters 28 and removed, while the onions a are transferred to the horizontal conveyor 3.
2, and is stored in a container 33. In the above case, the elastic conveyance protrusions 16, 16 are the system grooves 15, 1 of the respective conveyance rollers 12, 12.
5, the elastic conveying protrusions 16, 16 are prevented from separating due to the conveying resistance pushed laterally by the onion a during the conveyance of the onion a. It is held securely without any problems.

Further, a large number of elastic projections 25, 25 are not provided on the outer peripheral surface portions 19, 19 of the transport rollers 12, 12 between the pitches of the respective elastic transport protrusions 16, 16; By providing the elastic conveying protrusions 16, 16 close to the rear side surfaces, even if stones are mixed in the onions a being carried in, these stones d will be able to be removed from the outer circumferential surfaces 19, 19 of the conveying rollers 12, 12. The stone d deforms the elastic protrusions 25, 25 elastically and prevents them from riding on the numerous elastic protrusions 25, 25, and even if such a situation occurs, the numerous elastic protrusions 25, 25 are elastically deformed by the stones d and do not run over the large number of elastic protrusions 25, 25. Fall down and avoid this, and stone d
is smoothly conveyed by the rotation of the elastic conveying protrusions 16, 16.

Further, since the elastic conveying protrusions 16, 16 are removably fixed with screws 17, they can be easily attached and detached as needed. In addition, the mounting boards 21, 21 having a large number of elastic protrusions 25, 25 are detachably attached to the respective conveying rollers 12, 12 by screws 22, so that they can be easily attached and detached as needed. can do.

(Effects of the invention) According to the invention, onions are transported to the pair of transport rollers by the spiral elastic transport protrusions arranged in parallel on the outer periphery in the length direction and the large number of elastic protrusions on the mounting board. It is possible to reliably feed the foliage below between the pair of conveying rollers, and to reliably adjust the posture of the foliage downward so that it can be easily cut. In addition, since the large number of elastic protrusions are fixed and erected in the mounting recesses of the mounting board, they can be easily and reliably fixed to the mounting board, and can also be easily mounted to the conveyance roller. Furthermore, since the conveying ridges and the numerous protrusions have elasticity, they do not damage the onions, stems, and leaves. In addition, a large number of elastic protrusions are arranged in parallel on the rear surface of the elastic conveying protrusion via the mounting board, so the elastic protrusions are less likely to be damaged or cut off by stones, and are less likely to be damaged or cut off by stones. By attaching and detaching the mounting board and replacing it, a large number of elastic protrusions can be easily repaired without replacing the conveyance roller.

[Brief explanation of drawings]

The figures show an embodiment of the present invention, in which Fig. 1 is a plan view of a part of the onion conveying device, and Fig. 2 is a plan view of a part of the onion conveying device.
FIG. 3 is a sectional view taken along line A, FIG. 3 is a sectional view taken from line B to B in FIG. 1, FIG. 4 is an exploded perspective view of the same as above, and FIG. 11... Interval, 12... Conveyance roller, 15...
System concave groove, 16... Elastic conveying protrusion, 18... Onion conveying surface portion, 21... Mounting board, 23... Mounting recess, 25... Elastic protrusion, a... Onion, b... Stem and leaf.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A pair of conveying rollers rotatably arranged in parallel with a space between them for introducing onion stems and leaves and rotated inwardly, An elastic conveying protrusion that guides the onion between a pair of conveying rollers and conveys the onion in the longitudinal direction is spirally protruded on the outer periphery of the conveying roller in the length direction, and is opposite to the onion conveying surface of the elastic conveying protrusion. A mounting board having a mounting recess along the side in the length direction is removably attached in a spiral shape, and the onion leaves and stems are tied at a predetermined interval to the mounting recess of the mounting board and then tied together in pairs. An onion conveying device characterized in that a large number of elastic protrusions leading downward between the conveying rollers are firmly erected higher than the elastic conveying protrusions. (2) The onion conveying device according to claim 1, wherein the plurality of elastic protrusions are fixed and erected within a plurality of rows of mounting recesses of the mounting board. (3) The onion according to claim 1 or 2 of the utility model registration claim, characterized in that the elastic conveyance protrusion is removably protruded within the spiral engagement groove of the conveyance roller. Conveyance device.