JP2017205077A - Onion foliage cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an onion foliage cutting device of a simple structure in which the foliage of an onion is raised and can be cut reliably.SOLUTION: An onion foliage cutting device is provided for cutting the foliage of onions linearly planted in a ridge. The device includes: a perpendicular rotary shaft 12 rotating around a shaft; a cutting blade 10 fixed and rotated at the lower end of the rotary shaft 12, and cutting the raised foliage using attractive force generated by rotation; a hood 16 disposed of the rotary shaft 12 and the cutting blade 10, and collecting the foliage being cut with the cutting blade 10 and blown by the attractive force; a duct 17 coming in communication with the hood 16 and blowing the foliage; a pair of rear wheel support frames 6 with one end rotatably pivoted on both sides of the rear of the onion foliage cutting device, and having the other end capable of adjusting the height; and a rear wheel 5 being grounded to the other end of the rear wheel support frames 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an onion stem and leaf cutting device that cuts off the stem and leaf of an onion when harvesting the onion.

  In the cultivation of onions using a multi-film, it is difficult to peel off the multi-film because the foliage is lying on the multi-film when the onion is harvested. Therefore, a method has been adopted in which the fallen leaves are cut in advance so that the multifilm can be easily peeled off, the multifilm is peeled off, and then the onion is dug up and harvested. In this method, in order to make it easy to cut the foliage, a method has been proposed in which the fallen foliage is raised and cut.

  As a method of raising the fallen foliage part when cutting the foliage part, a method of raising the foliage part using a multi-film (see Patent Documents 1 and 2), or a foliage part raising device or a foliage part raising device A method (see Patent Document 3) has been proposed in which a foliage part is raised and made stand-up.

  In Patent Document 1, film harvesting means including a film take-up roller that winds and collects a multi-film is disposed in a harvesting machine, and a foliage protruding from the multi-hole is raised by peeling while pulling the multi-film. And cut at the lower position of the multi-film.

  Moreover, in the said patent document 2, in the said patent document 1, since a multifilm cannot be peeled appropriately, it provided the peeling assistance means which assists peeling of a multifilm by blowing air on the lower surface of a multifilm. Wind is released toward the lower surface of the multi-film by the peeling assist means, and the multi-film rises from the ground, and with the multi-film floating, the fallen leaves and leaves become upright, and the cutting means on the lower surface of the multi-film is accurate. It can be cut well.

  Moreover, in the standing means of the said patent document 3, the stem-and-leaf part raising apparatus which raises the stem and leaf part of root vegetables is provided in the walking type root vegetable harvesting machine, and the stem and leaf which raised at the rear part of this stem-and-leaf part raising apparatus By setting up a foliage uplifting device that rises across the head, and by providing a foliage cutting blade at the base of the foliage raised up by this foliage upright device, the root of the foliage is reliably secured with a foliage cutting blade It can be cut.

JP 2000-279011 A JP 2004-141121 A JP 2014-103911 A

  In the harvesting machine described in Patent Documents 1 and 2, it is necessary to provide a multi-film peeling means such as a film take-up roller in order to use a multi-film, and there is a problem such as a tear in the multi-film. There is a problem that the multifilm cannot stand up without hitting the foliage, and there is a disadvantage that it cannot be used for cultivation without using the multifilm.

  Furthermore, in the harvesting machine described in the above-mentioned Patent Document 3, a foliage part raising device that raises the foliage part, a foliage part raising device that rises across the foliage part, and this foliage part raising device Since a drive device is required, there is a problem that the structure of the harvester is complicated.

   Then, this invention provides the onion stem and leaf part cutting device which can raise | generate and cut the stem and leaf part of the fallen onion reliably by rotation of a cutting blade.

  The invention of claim 1 of the present application is a onion stem and leaf cutting device that cuts off the stem and leaf portion of the onion planted on the straw, and a pair of rotary shafts that rotate around a vertical axis, and cutting the lower ends of the pair of rotary shafts A cutting blade that rotates while being fixed to the blade fixing plate and that is erected by the suction force generated by the rotation, and the rotary shaft and the cutting blade are arranged and cut by the cutting blade. A hood that collects foliage that has been blown off by the suction force, a duct that communicates with the hood and communicates with a blowout port that blows out the foliage, and one end that can rotate on both sides of the rear part of the onion foliage cutting device A pair of rear wheel support frames that are pivotally attached to each other and adjustable in height at the other end, and a rear wheel that contacts the ground is fixed to the other end of the rear wheel support frame. Cutting device.

  In the invention of claim 2 of the present application, the cutting blade fixing plate at the lower end of the pair of rotating shafts is the other cutting blade fixing plate in which the inclination angle of the cutting blade fixing plate on the air outlet side is on the side away from the air outlet. 2. The onion stem and leaf cutting device according to claim 1, wherein the onion stem and leaf cutting device is set to be smaller than the inclination angle.

  The invention of claim 3 of the present application is provided with a pair of warp-shaped multi-sheet suction preventing plates that prevent the multi-sheet covering the ridge surface from being peeled off and sucked into the rear part of the onion stem and leaf cutting device. The onion stem and leaf cutting device according to claim 1 or 2, characterized in that it is a device.

  Invention of Claim 4 of this application is that the connection part of the front part of the said onion foliage cutting device and the rear part of a tractor can lift the said foliage cutting device by rotation. It is an onion stem and leaf part cutting device of description.

  Since the onion stem and leaf cutting device of the present invention (hereinafter referred to as “stem and leaf portion cutting device”) can raise the stem and leaf portion by suction without being affected by the lying state of the stem and leaf portion, Can be cut.

  The means for raising the foliage part of the cutting apparatus for cutting leaves and foliage according to the present invention is a means for raising the foliage part by pulling the multi-film with the conventional film winding device since the cutting blade is merely rotated at high speed in order to use the suction force by rotation. Compared with the means for raising the foliage part with the foliage part raising device and the foliage part raising device, it can be constituted by simple means.

  Since the foliage cutting device of the present invention does not use a multifilm for raising a foliage, it can be used in onion cultivation without using a multifilm.

It is a figure which shows the state which connected the foliage part cutting device of this invention to the tractor. It is the figure which looked at the foliage part cutting device of the present invention from the back side. It is a figure which shows the mechanism which rotates the cutting blade of this invention. It is the figure which looked at the foliage part cutting device of the present invention from the bottom.

  Embodiments of the present invention will be described with reference to the drawings.

  As shown in the drawings, since the foliage cutting device 1 of the present invention is connected to the tractor 2 and moved forward and backward, the front portion (tractor side) of the foliage cutting device 1 is separated from the rear portion of the tractor 2 by the connecting member 3. Connected as possible. The foliage cutting device 1 can be lifted by a connecting cylinder 4 connected to the tractor 2 so that the foliage cutting device 1 can be lifted from the ground during road running and inspection.

  A pair of rear wheels 5 are disposed on both sides of the rear part (opposite side of the tractor) of the foliage cutting device 1 so as to move across the fence planted with the onion. Each is fixed to the tip. One end of the rear wheel support frame 6 is pivotally attached to the rear portion of the foliage cutting device 1 and the other end is connected to the rear portion of the foliage cutting device 1 by a telescopic member including a piston 7 and a cylinder 8. It is supported. In this way, the foliage cutting device 1 is supported between the rear wheel 5 fixed to the rear wheel support frame 6 and the tractor 2, and the rear wheel 5 moves on both sides of the passage across the fence.

  The level of the foliage cutting device 1 is adjusted by operating the piston 7 and the cylinder, which are expansion and contraction members, to expand and contract, and to move the rear wheel 5 up and down by the vertical movement of the rear wheel support frame 6. By adjusting the level of the foliage cutting device 1, the level of the cutting blade 10 fixed to the cutting blade fixing plate 9 at the lower end of the rotary shaft 12 in the foliage cutting device 1 is positioned at the optimum cutting level position of the foliage portion. Can do.

  In addition, instead of the piston 7 and the cylinder 8, the expansion / contraction member is connected to the connection member via a turnbuckle, for example, by rotating the turnbuckle to expand / contract the connection member to move the rear wheel support frame 6 up and down. The level of the part cutting device 1 may be adjusted.

  In the present invention, when cutting the foliage part, a suction force for raising the foliage part that has fallen on the ridge is generated by the rotation of the cutting blade 10. In order to prevent the multi-film covering the ridge surface from being peeled off and sucked into the foliage cutting device 1, a pair of warp-shaped multi-film suction preventing plates 11 is located between the planted onions. Is attached.

  In the foliage cutting device 1, a pair of cutting blades 10 fixed to a cutting blade fixing plate 9 at the lower end of the rotary shaft 12 are disposed in a hood 16 described later at intervals. The cutting blade 10 generates a suction force by rotation, raises a fallen foliage portion, and cuts it. The cutting blade 10 is fixed so that one blade or both blades can be replaced. In the case of a double-edged blade, the blades on both sides can be used by being reversed.

  The cutting blade fixing plate 9 for fixing the cutting blade 10 has an inclined shape for generating a suction force for sucking air into the foliage cutting device 1 by rotating the cutting blade 10 by the rotation of the rotary shaft 12. . The inclination angle of the cutting blade fixing plate 9 is preferably about 20 to 30 degrees because a cutting force is generated by the rotation of the cutting blade 10 to cause the foliage to cut. However, in order to prevent the multi-film from being sucked by the suction force, one of the pair of cutting blade fixing plates 9 is fixed to one cutting blade on the outlet 17a side (left side in FIG. 3) of the foliage of the duct 17 described later. The inclination angle of the plate 9 is set to be smaller than the inclination angle of the other cutting blade fixing plate 9 on the side away from the air outlet 17a (right side in FIG. 3), for example, one cutting blade fixing plate 9 on the air outlet 17a side. Is set to about 20 degrees, and the other cutting blade fixing plate 9 is set to about 30 degrees.

  The mechanism for rotating the rotating shaft 12 to which the cutting blade 10 is fixed can be configured by a known rotating mechanism. For example, as shown in FIG. 3, the rotation of the rotation drive shaft 13 connected to the rotation drive device of the tractor 2 is transmitted to the rotation transmission shaft 15 by the pulley 14a and the belt 14b, and the rotation of the rotation transmission shaft 15 is transmitted to the rotation. A transmission mechanism that is engaged with the bevel gear 15 a at the tip of the shaft 15 and is transmitted to the bevel gear 12 a at the upper end of the rotary shaft 12 to rotate the cutting blade 9 is configured. The rotation speed of the cutting blade 10 is set to 600 to 800 rpm or more in order to generate a suction force for raising the foliage part and to cut the foliage part.

  The foliage cutting device 1 includes a hood 16 that raises foliage by suction and collects foliage cut by the cutting blade 10. The lower part of the hood 16 is opened to raise and cut the foliage part by suction, the upper part, both side parts, and the rear part are closed by the wall surrounding the cutting blade 10, and the front part on the tractor side is cut and blown off. A rubber interference plate is disposed at a portion where the two collide with each other.

  One side of the hood 16 is connected to a duct 17 that blows out the cut foliage and discharges it outside the foliage cutting apparatus 1, and the cut foliage is discharged out of the foliage cutting apparatus 1. . The air outlet 17a of the duct 17 is provided with a collision grid 18 that collides the blown foliage so that it does not scatter and drops the foliage into the lower passage.

  The operation of the foliage cutting device having the above configuration will be described.

  The foliage cutting device 2 that has been transported while being lifted by the tractor 2 is rotated to the ground side by the connecting cylinder 4 so that the rear wheels 5 are grounded to the passages on both sides of the basket on which the onion is planted.

  Next, in order to adjust the level of the cutting blade 10 to the cutting level of the foliage, the piston 7 and the cylinder 8 connecting the foliage cutting device 1 and the rear wheel support frame 6 are expanded and contracted to move the rear wheel support frame 6 up and down. The ground contact level of the rear wheel 5 is adjusted to position the cutting blade 10 at the cutting level of the foliage.

  After positioning of the cutting level of the foliage is completed, the rotary drive shaft 13 connected to the rotary drive device of the tractor 2 is rotated, and the rotary shaft 12 connected to the rotary drive shaft 13 is rotated to cut the lower end. The foliage cutting device 1 is pulled by the tractor 2 while rotating the cutting blade 10 fixed to the blade fixing plate 9.

  When the foliage cutting device 1 starts to move due to the tractor 2 pulling, the fallen foliage stands up due to the suction generated by the rotation of the cutting blade 10, and the upright foliage cuts at a high speed. 10 is cut one after another.

  The foliage cut by the cutting blade 10 and blown off by the suction force is blown out from the hood 16 through the side duct 17 from the blowout port 17a, collides with the collision grid 18 and falls to the lower passage. After cutting the foliage, the onion is dug up and harvested.

1: Stem and leaf part cutting device 2: Tractor 3: Connection member 4: Connection cylinder 5: Rear wheel 6: Rear wheel support frame 7: Connection member 8: Turnbuckle 9: Cutting blade fixing plate 10: Cutting blade 11: Multi-film suction Prevention plate 12: Rotating shaft 12a: Bevel gear 13: Rotating drive shaft 14a: Pulley 14b: Belt 15: Rotation transmission shaft 15a: Bevel gear 16: Hood 17: Duct 17a: Air outlet 18: Collision lattice

Claims (4)

In the onion stem and leaf cutting device that cuts the stem and leaf portion of the onion planted in the straw,
A pair of rotating axes that rotate about a vertical axis;
A cutting blade that rotates while being fixed to a cutting blade fixing plate at the lower end of the pair of rotating shafts, and that cuts the foliage portion raised by a suction force generated by the rotation;
A hood that collects the foliage that is disposed by the rotating shaft and the cutting blade and is cut by the cutting blade and is blown by the suction force;
A duct that communicates with the hood and communicates with an outlet that blows out the foliage,
A pair of rear wheel support frames, one end of which is pivotally attached to both sides of the rear part of the onion stem and leaf cutting device, the height of the other end being adjustable,
An onion stem and leaf cutting device characterized in that a grounding rear wheel is fixed to the other end of the rear wheel support frame.   The cutting blade fixing plate at the lower end of the pair of rotating shafts is set such that the inclination angle of the cutting blade fixing plate on the outlet side is smaller than the inclination angle of the other cutting blade fixing plate on the side away from the outlet. The onion stem and leaf cutting device according to claim 1.   3. A pair of warp-like multi-sheet suction preventing plates for preventing the multi-sheet covering the ridge surface from being peeled off and sucked at the rear part of the onion stem and leaf cutting device. The onion stem and leaf cutting device according to claim 1.   The onion stem and leaf cutting device according to claim 1, 2 or 3, wherein a connecting portion between the front part of the onion stem and leaf part cutting device and the rear part of the tractor can lift the stem and leaf part cutting device by rotation.

Images