JPH06125629A - Apparatus for lowering stem and leaf of harvester - Google Patents

Abstract

PURPOSE:To surely hang and cut stems and leaves by installing a comb-toothed unit for hanging the stems and leaves of a crop between a conveying tool during the reversing and a stem and leaf cutter. CONSTITUTION:A conveying tool 44 of a treating conveyor 17 is reversed with a reversing mechanism 19 and stems and leaves (13a) of a crop 13 are fed to a stem and leaf cutter 20 while being forcedly hung by the turning movement of a comb-toothed unit 69. Even if the stems and leaves wither or stick to the treating conveyor or entanglement or bending occur, the stems and leaves can be cut in a surely hung state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foliage lowering device of a harvester for harvesting crops such as onions.

[0002]

2. Description of the Related Art For example, in an onion digging and harvesting machine, a comb-shaped digging member is provided at the front of the machine body, a conveyor is provided behind the digging member, and an onion is conveyed while being further lifted. The onion is turned upside down via a reversing mechanism at the rear part of the processing conveyor, and the foliage hanging down by inverting is cut by a foliage cutting device.

[0003]

In the above-mentioned prior art, the drooping of the foliage of the onion relies only on gravity, and the foliage is dead and lightened, shortened, clinged to the conveyor, and entangled. Or, if there is a bend, it may not hang down to the required state, a cutting error may occur, or the stem length remaining in the bulb may not be a certain length, which is a cause of poor cutting. .

According to the present invention, the comb tooth body is swung from the vicinity of the conveying tool being inverted to the vicinity of the foliage cutting device so that the foliage of the vertically inverted crop can be forcibly hung down and supplied to the foliage cutting device. It is intended to provide a foliage lowering device for a harvester.

[0005]

The concrete means for solving the problem in the present invention is to invert the harvested crop 13 while holding it by the carrier tool 44 of the processing conveyor 17 and transporting the drooped foliage 13a. In the harvester that cuts with the cutting device 20, the foliage cutting device 20 is removed from the vicinity of the conveyance device 44 between the conveyance device 44 and the foliage cutting device 20 which are being inverted.
Comb-tooth body 69 which is swiveled to the vicinity and supplied to the foliage cutting device 20 while hanging down the foliage 13a of the crop 13 being conveyed.
Is provided.

[0006]

Operation: The onion 13 harvested from the ridges 12 is carried by the carrying tool 44 of the processing conveyor 17 while being carried and the reversing mechanism 19 being carried.
Upside down with. The onion 13 is turned upside down so that its foliage 13a hangs down and is supplied to the foliage cutting device 20 in that state, and the foliage 13a is cut leaving a stalk of a certain size.

The foliage lowering device 21 includes a carrier tool 44 which is being inverted.
And a comb-teeth body 69 between the stem and leaf cutting device 20,
This comb-tooth body 69 is used to remove the foliage cutting device 20 from the vicinity of the carrier tool 44.
While turning and moving to the vicinity, the foliage 13a at the latter stage of reversal is hooked and pulled down, and the foliage cutting device 2
Supply by pushing to 0 side.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 3 and 4, the harvester 1 is a self-propelled work vehicle having a crawler type traveling device 3 driven by an engine 2, and has a dug portion 5 in the front part of the traveling body 4 and a processing part from the middle part to the rear part. 6, the right side of the processing section 6 has a control section 7 on the front side and a carry-out section 8 on the rear side.

The dug portion 5 is a pair of left and right dividers 1.
1 and the ridges 12 arranged between the left and right dividers 11.
Comb-shaped digging member 14 for digging the onion (crops) 13 therein, lifting conveyor 15 for lifting the onion 13 digged by the digging member 14 rearward and upward, and onion 13 arranged on the upper side of this lifting conveyor 15 The first foliage aligning means 16 for aligning the direction of the foliage 13a and removing the adhered soil.

The processing section 6 receives the onion 13 from the lifting conveyor 15 and conveys it while gripping it.
7, a second foliage aligning means 18 arranged on the upper side of the processing conveyor 17, an inversion mechanism 19 for vertically inverting and transporting the onion 13 from the upper horizontal transport section 17A to the lower horizontal transport section 17B, and the lower horizontal transport The foliage cutting device 20 arranged below the portion 17B, the foliage lowering device 21 forcibly hanging the foliage 13a of the onion 13 when inverted, and the onion 1 after foliage cutting
Side-feeding conveyor 22 for receiving 3 from the processing conveyor 17
And have.

A pedestal 25 of the container 24 of the carry-out section 8 is fixed to the right side of the traveling machine body 4. This container pedestal 25 is located above the groove between the ridges 12, and the operation panel 26 of the control unit 7 and the stay 28 to which the driver's seat 27 is attached are fixed to the front portion thereof. In FIGS. 1 to 6, the lifting conveyor 15 is arranged in a rearward and upward inclined shape, and a large number of horizontal rails 33 are connected between a driving sprocket 31 and a sprocket 32 supported by the left and right side plates 30 of the machine body 4. A pair of left and right chains 34 are wound around, and the onion 13 dug and scooped from the ridges 12 by the dug member 5 is placed, conveyed to the upper rear, and transferred to the processing conveyor 17.

The first and second foliage aligning means 16, 18
Is provided in each of the middle portions of the lifting conveyor 15 and the processing conveyor 17 so that the vertical position can be adjusted, and is formed by a brush that is in sliding contact with the onion 13 that is being conveyed. To align. The processing conveyor 17 of the processing unit 6 includes a frame 3 having left and right side plates.
A drive sprocket 38 of a drive shaft 37 supported by 6;
A pair of left and right chains 43 are wound around the traveling sprocket 40 of the traveling shaft 39 and the idle sprockets 41 and 42, and the transport tools 44 are provided between the left and right chains 43 at a constant pitch.

The conveying tool 44 is a receiving tool 44 for the ball portion of the onion 13.
A and a hugging tool 44B are carried by being hugged and carried, and the receiving tool 44A and the hugging tool 44B are substantially symmetrical in shape, and are pivotally supported in opposite directions by a pivot 46 connected to the left and right chains 43, A shape-retaining body 47 having a trapezoidal shape in a side view, which is rotatably supported on the pivot 46 in the longitudinal direction, and a receiving rod 48 fixed to a bent portion and a tip of the shape-retaining body 47.

The left and right ends of the tips of the receiving members 44A and the hugging members 44B are guide rails 49A fixed to the frame 36,
49B and the like, and opens at the end of the return conveyor 17C of the processing conveyor 17 and lifts the conveyor 17D.
After receiving the onion 13 at the start end of the above, it is closed and temporarily opened in the middle of the lower horizontal transport section 17B above the transverse feed conveyor 22.

A plurality of foliage guide rods 53 are arranged above the processing conveyor 17 in the width direction of the conveyor. The foliage guide rod 53 is formed of a round rod, a pipe, or a rod member having an arcuate upper surface, and a mounting rod 54 is fixed to the rear upper part from the middle thereof. The front part of the foliage guide rod 53 is attached to the frame 36 below the conveyor 15 via the bracket 55 at the front lower portion of the frame 36, and the middle part is attached to the horizontal rail 56 which constitutes the frame 36 via the attachment rod 54. It is connected. Although the rear end of the foliage guide rod 53 is a free end, it may be connected to the second foliage aligning means 18 or the frame 36 via a connecting member.

Although three foliage guide rods 53 are provided in the width direction of the conveyor, a plurality of foliage guide rods 53 may be provided other than three, and the interval between them is larger than the bulb portion of the onion 13, and the bulb portion of the onion 13 and the foliage 13a. The size is set to be sufficiently shorter than the sum of the lengths. Therefore, when the onion 13 is picked up from the lifting conveyor 15 and transferred to the conveying tool 44 of the processing conveyor 17, the onion 1
When 3 is turned sideways, the foliage 13a is placed on the foliage guide rod 53 and lifted up from the transport tool 44, giving an opportunity to contact the second foliage aligning means 18, and the second foliage aligning means 18 is provided. By sideways foliage 13a
Are moved rearward in the transport direction and aligned.

A reversing mechanism 19 is provided between the end of the upper horizontal transfer section 17A where the moving sprocket 40 is located and the start of the lower horizontal transfer section 17B. The reversing mechanism 19 is configured by fixing a reversing body 60 having a cross shape in a side view to the sliding shaft 39 so as to be integrally rotatable. The reversing body 60 is displaced around the outer periphery of the driving shaft 39 by about 90 degrees, and is sandwiched by a strip plate 62.
And press the push plate 6 to the pair of sandwiching plates 62 at the opposite positions.
3 is bolted, and the outer end of the push plate 63 is bent in a V shape so as to extend rearward in the rotation direction, and
Forming A. The pair of sandwich plates 62 are omitted,
The push plate 63 may be directly fixed to the sliding shaft 39.

The pushing plate 63 having the deep pushing portion 63A and the sandwiching plate 62 on the leading side in the direction of rotation thereof contact the outer surface of the shape-retaining body 47, and sandwich the one set of the conveying tool 44 around the sliding shaft 39. It is designed to rotate and the transport tool 44 is an onion 13.
It can be reversed from the upward posture to the downward posture while holding. The inverted transporting tool 44 is closed so that the hugging tool 44B is guided by the lower guide rails 64A and 64B, and the receiving tool 44A is pushed by the pushing part 63A, that is, the holding tool 44 is held in cooperation with the hugging tool 44B. The posture is maintained so that the transport tool 44 does not open until it reaches the transverse feed conveyor 22.

The foliage cutting device 20 is a reciprocating type in which the movable blade 66 reciprocates left and right with respect to the fixed blade 65 fixed to the frame 36, and the onion 13 is turned upside down.
The foliage 13a is cut with a certain length left. After cutting, the onion 13 is dropped when it comes onto the transverse conveyor 22,
The container 2 on the pedestal 25 by the lateral feed conveyor 22
Harvested in 4

The foliage lowering device 21 is arranged between the transport tool 44 and the foliage cutting device 20 which are inverted by the inverting mechanism 19, and the foliage 13a of the onion 13 which has been held by the transport tool 44 and inverted. The posture is corrected so that it is supplied to the foliage cutting device 20 in a proper suspended posture. In this foliage lowering device 21, a crank arm 68 is fixed to a rotary shaft 67 that is rotatably supported by a frame 36, and a comb tooth body 69 is rotatably supported by this crank arm 68. A swing arm 70 pivotally connected to the frame 36 is pivotally supported on the frame 36 via a pivot shaft 71. The comb-tooth body 69 is made of metal or plastic and is formed in a tip-fork shape.

The rotary shaft 67 is capable of transmitting power from the engine 2 through the chain transmission means 72, and the rotation of the crank arm 68 causes the comb-tooth body 69 to swing the arm 70.
It is rotated while being restrained by, and its tip is swung from the vicinity of the transport tool 44 to the vicinity of the foliage cutting device 20 while drawing a locus 73 shown in FIGS. That is, the comb-tooth body 69 moves from the upper part to the lower part and from the distant position to the near position with respect to the foliage cutting device 20, and makes a motion to return to the original position through the return path lower than the forward path, and the foliage. Even if 13a is dead and lightened, shortened, stuck to the processing conveyor 17, entangled or bent, it is hooked and pulled down, and the stover cutting device 2
Push it to the 0 side.

The foliage lowering device 21 is a foliage cutting device 20.
When the cutting length of the foliage 13a is adjusted, the height of the foliage 13a and the height of the foliage cutting device 20 can be adjusted at the same time. The present invention is not limited to the above embodiment, but can be variously modified. For example, the comb tooth body 69 may be formed by a brush, or may be rotationally moved so as to be substantially in contact with the conveying tool 44 and the foliage cutting device 20 which are being inverted. In addition to onion, carrot, garlic, turnip, etc. It can also be applied to crops such as radish.

[0023]

According to the present invention described in detail above, between the transporting tool 44 and the foliage cutting device 20 which are being reversed, the swivel movement from the vicinity of the transporting tool 44 to the vicinity of the foliage cutting device 20 is carried out. The foliage cutting device 2 while hanging the foliage 13a of the crop 13
Since the comb tooth body 69 to be supplied to 0 is provided, it can be supplied to the foliage cutting device 20 while forcibly hanging the foliage 13a of the crop 13 being conveyed, and the foliage 13a is dead and lightened, Shortened, processing conveyor 17
Even if it sticks to, or is entangled or bent, it can be hung and cut surely in a required state.

[Brief description of drawings]

FIG. 1 is a sectional side view showing an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional side view of the main part.

FIG. 3 is a side view showing the entire harvester.

FIG. 4 is a plan view showing the entire harvester.

FIG. 5 is a plan view of a processing conveyor.

FIG. 6 is a perspective view of a reversing mechanism, a foliage cutting device, and a foliage lowering device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Harvester 5 Digging part 6 Processing part 13 Onion (crop) 13a Stem leaf 15 Lifting conveyor 17 Processing conveyor 19 Inversion mechanism 20 Stem leaf cutting device 21 Stem leaf lowering device 44 Conveying tool 68 Crank arm 69 Comb tooth body

Claims (1)

[Claims] 1. The harvested crop (13) is held up and down while being carried by a carrying tool (44) of a processing conveyor (17), and the hanging foliage (13a) is foliage cutting device (2).
0) In the harvester for cutting, the foliage cutting device (20) is provided in the vicinity of the conveyance device (44) between the conveyance device (44) and the foliage cutting device (20) which are being inverted.
The foliage of the crop (13) (1)
A foliage lowering device for a harvester, characterized in that a comb tooth body (69) is provided for supplying the foliage cutting device (20) while suspending 3a).