JPH08140453A - Apparatus for processing harvested vegetable - Google Patents

Abstract

PURPOSE: To provide an apparatus for processing harvested vegetable, capable of properly correcting the posture of a harvested vegetable independent of the size of the vegetable and properly cutting the stalk of the vegetable. CONSTITUTION: This harvested vegetable processing apparatus is provided with a transfer means 19 to transfer a harvested vegetable C having a formed head part B and a root stalk part S by clamping the root stalk part S of the vegetable, a posture correcting means 21 placed above the transfer means 19 and acting on the upper face of the transporting head part B to straightly erect the root stalk part S and a cutting means to cut the harvestd vegetable C at the boundary of the head part B and the root stalk part S after correcting the posture. The posture correcting means 21 is attached to an oscillation link 67 freely oscillating in vertical direction. A torsion spring 68 to apply a force to the oscillation link 67 is attached to the pivot of the link 67 in a state to enable free adjustment of the torsional strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvested vegetable processing apparatus for harvesting headed vegetables such as cabbage and lettuce and then cutting the roots.

[0002]

2. Description of the Related Art For example, as a vegetable harvesting machine for heading vegetables such as cabbage, "1993 Business Report: Research Project Name: Development of Cabbage Harvesting Machine, pp. 143-144" issued by "Biotechnology-Specific Industrial Technology Research Promotion Organization" Those described in 1 are known.
In this conventional device, the cabbage is guided by two rotating discs by advancing along the crop strip, and the stem portion is sandwiched between two screw shafts and pulled out. While the screw is being conveyed, the root of the cabbage is cut and removed while pressing the top of the cabbage.
Next, the stem is held and conveyed, and is transferred from the screw of the sampling unit to the screw of the recutting device. Then, the sandwich belt holds the left and right sides of the cabbage, and at the same time, the top is pressed and the stem is cut by the rotary blade. The cut stalks drop, and the bulbs drop from the end of the nip belt onto the transverse conveyor. The auxiliary worker removes the nonstandard balls and puts the good balls in the packing box. The outer leaf was discharged to the outside of the machine.

[0003]

By the way, in the above-mentioned prior art, when recutting the stalk, the posture of the cabbage is held by the posture correcting means so that the stalk is orthogonal to the rotary blade. Although it is corrected, there is a problem that depending on the size of the cabbage, this posture correcting means is not properly pressed and the posture of the cabbage cannot be corrected properly.

Further, the cutting position of the stalk must be adjusted according to the size of the cabbage, but in the conventional case, it is difficult to adjust the position of the rotary blade. Therefore, the present invention has an object to provide a harvested vegetable processing device capable of appropriately correcting the posture thereof according to the size of the harvested vegetable and capable of appropriately cutting the stem portion thereof. To do.

[0005]

In order to achieve the above object, the present invention has taken the following means. That is, the feature of the present invention is that the conveying means for sandwiching and conveying the rhizome portion of the harvested vegetable having the head portion and the rhizome portion, and the portion of the head portion in the middle of conveyance arranged above the conveying means. A posture correcting means that acts on the upper surface to make the posture of the rhizome part upright,
In a harvested vegetable processing device having a cutting means for cutting a boundary between a bulb portion and a rhizome of harvested vegetables whose posture has been corrected, the posture correcting means is provided on a swing link that is vertically swingable. The torsion spring for applying an urging force to the swing link is provided at the pivotal support of the swing link so that the twist strength can be adjusted.

It is preferable that the correction means is provided with a lower limit regulating means for regulating the lower limit position of the vertical swing range so that the lower limit position can be adjusted. Further, in the present invention, the cutting means has a rotary cutting blade, an output shaft to which the rotary cutting blade is fixed, and a drive device for rotating the output shaft, wherein the output shaft is relative to the drive device. The position is adjustable in the axial direction.

[0007]

According to the present invention, the harvested vegetables are conveyed by the conveying means while holding the roots thereof. Then, during the transportation, the posture correcting means acts on the upper surface of the bulb portion, and the transportation posture is corrected so that the rhizome portion becomes upright. At this time, by adjusting the strength of the torsion spring, the abutment force between the posture correcting means and the harvested vegetables can be adjusted to an appropriate value. Therefore, the posture correction can be performed according to the size of the harvested vegetables. Can be appropriate.

Since the boundary portion between the rhizome portion and the bulb portion of the vegetables thus corrected in posture is cut by the cutting means, the border portion is cut at a right angle to the root portion.
At this time, by adjusting the position of the rotary cutting blade of the cutting means, the cutting position can be made appropriate according to the size of the harvested vegetables. Since the position of the rotary cutting blade is adjusted by moving the drive shaft in the axial direction, the structure of the device is simpler than that of moving the entire cutting means.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a vegetable harvester suitable for harvesting cabbage. This harvester has a traveling vehicle 1 and this traveling vehicle 1
For harvesting means 2 to pull out the cabbage (vegetable) C from the field
And a lifting means 3 for lifting the cabbage C pulled out by the harvesting means 2 upward, and a harvested vegetable processing device 4 for processing the cabbage C sent by the lifting means 3 while conveying it backward, A storage section 5 for storing the cabbage C that has been processed by the harvested vegetable processing apparatus 4 is provided.

The storage section 5 is provided with a container 6 which is open upward, and a large number of cabbage C dropped from the rear end of the harvested vegetable processing apparatus 4 are stored in the container 6. The traveling vehicle 1 has a vehicle body 8 provided with a crawler 7, and a driver's seat 9 is provided on the right side of the vehicle body 8. At the front or left side of the driver's seat 9, there are a steering control lever, a main gear shift lever, an auxiliary gear shift lever, an accelerator lever, and the like. Further, the vehicle body 8 is provided with an engine 10 and a mission 11 for driving the crawler 7. A lifting work device 12 is provided at the rear of the vehicle body 8.

The harvesting means 2 is arranged in front of the left part of the vehicle body 8 and holds a pair of left and right pickup disks 13 arranged at the front end thereof and a rhizome S of the cabbage C pulled out by the pickup disks 13. And a pair of left and right take-in screws 14 for conveying the upper rear side. The left and right take-in screws 14 are so-called biaxial auger screws having a spiral groove on the surface of the straight rod shaft, and carry the root portion S in the groove of both screws while conveying it backward. The uptake screw 14 is arranged at a predetermined angle with respect to the surface of the field.

The lifting means 3 comprises a take-up screw 14
A lifting screw 15 connected to the rear end of the cabbage C and a belt conveyor 16 that presses the top of the cabbage C to stably carry the cabbage C by the lifting screw 15. The lifting screw 15 is inclined rearward and upward at an angle larger than the intake screw 14, for example, 42 ° to 50 °, and like the intake screw 14, it is
A pair of right and left shaft auger screws are provided, and the cabbage C is lifted and conveyed rearward and upward while sandwiching the rhizome S in the groove of the screw.

The belt conveyor 16 is driven at substantially the same speed as the conveying speed of the lifting screw 15, and presses the top of the cabbage C conveyed by the lifting screw 15 to prevent the cabbage C from falling and to stably convey the cabbage C. I am trying to Below the lifting screw 15, a rotary drive type cutting blade 17 is provided. With this cutting blade 17, the lifting screw 15 of the rhizome S of the cabbage C is cut.
Thus, the root portion S below the portion is cut and removed, leaving the portion sandwiched by.

As shown in FIGS. 2 to 4, the harvested vegetable processing device 4 is supported and fixed to a device frame 18 fixed to the vehicle body 8. The harvested vegetable processing apparatus 4 includes a carrying means 19 for nipping and carrying the rhizome S of the cabbage C, and a side carrying part for nipping and carrying the bulb portion B of the cabbage C from the left and right.
20, a posture correction unit 21 which is disposed above the transport unit 19 and acts on the upper surface of the head portion B during transport to make the posture of the rhizome S upright, and a harvested posture. Cutting means for cutting the boundary between the bulb portion B and the rhizome S of the vegetable
22 and.

Below the cutting means 22, a discharge conveyor 23 for discharging the cut root S is arranged. As shown in FIG. 5, the conveying means 19 has a pair of left and right auger screws 24 connected to the rear upper end of the lifting screw 15 via a refraction joint D. The opposite sides of these auger screws 24 are rotated downward to pull the rhizome S of the cabbage C downward,
The cabbage C is conveyed rearward while sandwiching the rhizome S in the groove 25 of 24.

The rear end of each auger screw 24 is supported by an L-shaped gear box 26. The gear box 26 is fixed to the device frame 18. A pair of bevel gears 27 is built in the gear box 26, one bevel gear 27 interlocks with a sprocket 28 provided outside, and the other bevel gear 27 is connected to the auger screw 24. Then, by inputting the power from a drive source (not shown) such as a hydraulic motor (or a motor with a speed reducer) through the sprocket 28, the rotational power is transmitted to each auger screw 24 and both auger screws 24 are connected. It is configured to be rotationally driven at the same speed.

The middle part of each auger screw 24 is supported by the device frame 18 via a bearing 29. The concave groove 25 formed in a spiral shape on the outer periphery of the auger screw 24 facilitates the drop discharge of the rhizome S cut by the cutting means 22, and therefore is normally shown behind the cutting means 22 by a dotted line. It is formed deeper than the depth of the groove bottom. Further, the screw-opposing surface of one gear box 26 is notched, and the gap L between the opposing groove bottoms is increased to facilitate the drop discharge of the cut rootstock S. Furthermore, by disposing the rear end position of one of the pair of right and left auger screws 24 in the front, the cut and discharged rhizome portion S can be easily discharged.

As shown in FIGS. 6 to 11, the side transfer section 20 is provided with a pair of left and right endless belt conveyors 30 for connecting the ball portion B of the cabbage C sent by the lifting means 3 to both belts. The conveyor 30 sandwiches it from the left and right sides and conveys it to above the storage section 5. Each belt conveyor
Reference numeral 30 denotes a pair of upper and lower ring-shaped rubber belts 31, and the rubber belts.
An elastic band 32 such as a sponge is attached to the outer peripheral surface of 31. The pair of left and right belt conveyors 30 are wound around a front pulley 33 arranged above the rear part of the lifting screw 15 and a rear pulley 34 arranged above the storage part 5, respectively. A plurality of guide pulleys 35 that guide the side of the rubber belt 31 that holds the ball-bounding portion B are provided at predetermined intervals between the pulley 34 and the pulley 34.

As shown in FIG. 7, the front pulley 33 is rotatably supported by the lower ends of both legs 37 of the gate type transmission case 36. Both legs 37 are fixed to the device frame 18 (see FIG. 2). A bevel gear transmission 38 is provided in the gate type transmission case 36. A sprocket 39 is provided at an end of the transmission device 38, and the sprocket 39 is housed in a chain case 40 provided at one end of the gate type transmission case 36. An input sprocket 41 is provided at the rear end of the chain case 40. Then, the rotational power from the motor fixed to the device frame 18 is input to the input sprocket 41, the front pulley 33 is driven via the bevel gear transmission 38, etc., and the belt conveyor 30
However, it is driven forward and backward at the same speed. The transport speed of the belt conveyor 30 and the transport speed of the transport means 19 are the same.

As shown in FIG. 8, the rear pulley 34 is an automatic tension adjusting device provided at the rear end of the device frame 18.
The movement is adjustable in the front-back direction by 42. That is,
The rear pulley 34 is supported by the rear end of a slide 43 supported by the device frame 18 so as to be movable in the front-rear direction.
Is biased rearward by a spring 44.
Therefore, the spring 44 is configured so that the winding tension of the belt conveyor 30 can be automatically adjusted.

Each of the guide pulleys 35 is provided at a swinging side end of a swinging piece 45 which is pivotally supported on the apparatus frame 18 so as to be rotatable about a vertical axis, and each swinging piece 45 is A tension spring 46 is provided so that the guide pulley 35 presses the inner surface of the rubber belt 31 on the outward side to narrow the gap between the left and right belt conveyors 30.
Powered by The tension spring 46 of each rocking piece 45 is a torsion spring provided in the pivotal support portion of the rocking piece 45, and one end of the spring 46 is locked in the middle of the rocking piece 45. The end is locked to the slide piece 47.

The slide piece 47 is provided in the apparatus frame 18 so as to be movable in the front-rear direction via a long hole 48 and a slide pin 49. The rear end of the slide piece 47 is connected to the operating device 50. That is, the operating device 50 is a device frame
It has a gear box 51 fixed to 18, and a pair of bevel gears 52 is built in the box 51. The operation handle 53 is coupled to the one bevel gear 52, the screw shaft 54 is coupled to the other gear 52, and the sleeve 55 is screwed to the screw shaft 54,
The sleeve 55 is connected to the slide piece 47.

Therefore, by rotating the operation handle 53, the slide piece 47 moves in the front-rear direction, and the strengths of all the torsion springs 46 on the same side can be adjusted at the same time. When the slide piece 47 is moved rearward to increase the strength of the torsion spring 46, as shown in one side of FIG.
Swings toward the transfer center line, and slide piece 47
When is moved forward, the strength of the spring 46 is weakened, so that the swing piece 45 swings away from the transport center line as shown on the other side of FIG.

By interlocking the left and right operation devices 50, the left and right swing pieces 45 can be simultaneously adjusted by the same amount. As shown in FIGS. 12 and 13, the posture correcting means 21 includes an elastic band composed of a rubber belt between a driven pulley 56 on the front side and a driving pulley 57 on the rear side and a sponge attached to the outer peripheral surface of the rubber belt. It is made by winding the endless belt 58. The driven pulley 56 is supported by the front support body 59,
The drive pulley 57 is supported by the rear support 60. The front and rear supports 59, 60 are bolted together so that the center distance between the pulleys 56, 57 can be adjusted.

A lower end of a transmission case 61 is rotatably supported by the rear support 60 coaxially with the drive pulley 57, and a lower end of a link 62 is rotatably supported in front of the rear support 60. Has been done. The upper end of the transmission case 61 is rotatably supported on the end of the tubular case 63. This cylindrical case 63
It is fixed via a fixing plate 65 to a portal frame 64 which is vertically fixed to the device frame 18. And this tubular case
The other end of 63 is connected to the chain case 40. Then, the power from the input sprocket 41 is transmitted to the drive pulley through the transmission device in the cylindrical case 63 and the transmission case 61.
Transmitted to 57.

The upper end of the link 62 has the gate frame.
A mounting plate 66 fixed to 64 is pivotally supported. However, the link 62 and the transmission case 61 form a parallel link, and the swing link 67 is configured by these parallel links. The posture correcting means 21 supported by the swing link 67 can be moved in parallel in the vertical direction above the refraction connecting portion D, and can be set in accordance with the size of the cabbage C.

That is, a torsion spring 68 is provided at the pivotal support between the mounting plate 66 and the link 62. The torsion spring 68 biases the posture correcting means 21 upward. A circular disc 69 is concentrically attached to the pivotal support portion so that the turning angle thereof can be adjusted. One end of the torsion spring 68 is locked to the circular disc 69, and the other end thereof has a link 62. Is locked to. A circular arc-shaped long hole 70 is concentrically provided in the circular plate 69, and a thumbscrew 71 inserted into the long hole 70 is screwed into the mounting plate 66. And thumbscrew 71
The disk 69 is rotated by loosening to adjust the strength of the torsion spring 68, and the thumb screw 71 is tightened to prevent the disk 69 from rotating.

Between the upper portion of the transmission case 61 and the gate-shaped frame 64, lower limit regulating means 72 for regulating the lower limit position of the posture correcting means 21 is provided. The lower limit restricting means 72 includes a stopper 73 protruding upward from the upper portion of the transmission case 61, a screw cylinder 74 fixed to the gate frame 64, and an operating screw 75 screwed to the screw cylinder 74. The operation screw
The lower end position of the posture correcting means 21 is regulated by the tip of 75 contacting the stopper 73. The lower limit position can be adjusted by operating the operating screw 75.

The shoulder portion of the ball portion B of the cabbage C that has been conveyed to the tip of the conveying means 19 collides with the winding and bending portion of the driven pulley 56 of the endless belt 58 of the posture correcting means 21. At this time, the peripheral speed of the parallel portion of the endless belt 58 and the carrying speed of the carrying means 19 are set to be substantially the same. However, since the outer peripheral surface and the inner peripheral surface of the winding bent portion of the driven pulley 56 have different radii, the peripheral speed of the outer peripheral surface of the winding bent portion is faster than the peripheral speed of the parallel portion. ing.

Therefore, the shoulder portion of the bulb portion B of the cabbage C collides with the winding bent portion of the endless belt 58, and
While the posture correcting means 21 moves upward, the cabbage C enters the lower surface side of the endless belt 58 and reaches the parallel portion,
Until the top surface of the ball head B is pressed by the parallel portion of the endless belt 58, the upper part of the head ball B of the cabbage C is moved at a speed faster than the transport speed, so that the inclined posture shown in FIG. It is corrected to an upright posture.

At this time, depending on the contact position of the shoulder portion of the ball head portion B, the quality of the posture correction is determined. Therefore, it is necessary to adjust the contact position according to the size of the cabbage C. The contact position is set by the lower limit position restricting means 72. Further, if the strength of the torsion spring 68 is not appropriate, for example, if it is too strong, the cabbage will be damaged by the impact at the time of the collision, and if it is too weak, the pressing force will be insufficient and slip will occur. Since the corrective force is insufficient, the disc
Rotate 69 to adjust the strength of torsion spring 68 to an appropriate value. This adjustment is preferably performed each time the lower limit position is adjusted.

As shown in FIGS. 14 to 16, the cutting means 22 has a rotary cutting blade 76 provided above the midway portion of the conveying means 19 in the conveying direction, and a vertical axis on which the rotary cutting blade 76 is fixed. Posture output shaft 77 and drive device 78 for rotating the output shaft 77
It consists of and. The drive device 78 has a gear box 79 fixed to the device frame 18, and the gear box 79
A first gear 80 is rotatably and axially immovably supported on a slide bush 81 below the first gear 80.
Is rotatably and immovably supported in the axial direction. The output shaft 77 is attached to the first gear 80 and the slide bush 81.
Is inserted so as not to rotate relative to it and to be movable in the axial direction. Further, in the gear box 79, the first gear 80
A second gear 82 meshing with the second gear 82 and a pair of bevel gears 83 connected to the second gear 82 are supported. The gear box 79 is provided with a pulley 84 for inputting power to the bevel gear 83. Rotational power is transmitted to the pulley 84 from a power source (not shown), and the rotary cutting blade 76 is rotationally driven.

A shifter ring 85 is fixed between the first gear 80 of the output shaft 77 and the slide bush 81.
The shifter 86 is engaged with. The shifter 85 is fixed to one end of a shaft 87 supported on a side surface of a gear box 79 in a horizontal axis posture, an arm 88 is fixed to the other end of the shaft 87, and a rod end 89 is connected to the arm 88. The operation screw 90 is connected to the rod end 89 so as to be relatively rotatable and axially immovable, the operation screw 90 is screwed to the screw cylinder 91, and the screw cylinder 91 swings to the device frame 18. It is movably and non-rotatably supported.

However, by rotating the operating screw 90, the output shaft 77 is vertically aligned via the shifter 86, and the height of the rotary cutting blade 76 can be adjusted. The operation screw 90 is provided with a scale indicating the height of the rotary cutting blade 76. The device frame 18 on the opposite side of the rotary cutting blade 76
In addition, a fixed blade 92 is provided so that its height can be adjusted, and is configured to cut an outer leaf that cannot be cut by the rotary cutting blade 76. By providing the fixed blade 92 in this way, the diameter of the rotary cutting blade 76 can be reduced.

The height of the fixed blade 92 is preferably adjusted in conjunction with the operating screw 90. 17 to 19 collectively show the drive system of the harvested vegetable processing device. The present invention is not limited to the above embodiment.

[0036]

According to the present invention, an appropriate treatment can be performed according to the size of the harvested vegetables.

[Brief description of drawings]

FIG. 1 is an overall side view of a cabbage harvester equipped with a harvested vegetable processing apparatus according to an embodiment of the present invention.

FIG. 2 is a side view showing an embodiment of the present invention.

FIG. 3 is a plan view of FIG. 2;

FIG. 4 is a view as viewed in the direction of the arrow A in FIG. 2;

FIG. 5 is a plan view of a conveying unit.

FIG. 6 is a plan view of a transport unit and a side transport unit.

FIG. 7 is a front view showing a driving device of a side transport section.

FIG. 8 is a side view of a side transport unit.

FIG. 9 is a plan view showing a rear portion of the side transport unit.

FIG. 10 is a cross-sectional view showing a slide piece of the side transport section.

FIG. 11 is a cross-sectional view showing a swing piece of a side transport section.

FIG. 12 is a side view showing posture correction means.

FIG. 13 is a plan view showing posture correction means.

FIG. 14 is a front sectional view showing a cutting means.

FIG. 15 is a side sectional view showing a cutting means.

FIG. 16 is a plan sectional view showing a cutting means.

FIG. 17 is an explanatory diagram showing a power drive system.

FIG. 18 is an explanatory diagram showing a power drive system.

FIG. 19 is an explanatory diagram showing a power drive system.

[Explanation of symbols]

 4 Harvested Vegetable Processing Device 19 Conveying Means 21 Posture Correcting Means 22 Cutting Means 67 Swing Link 68 Torsional Spring 72 Lower Limit Regulation Means 76 Rotating Cutting Blade 77 Output Shaft 78 Drive Device C Harvested Vegetables B Heading S S Roots

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tosei Yamazaki 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Factory Co., Ltd. (72) Sadayuki Takahashi 64, Ishizukitamachi, Sakai City, Osaka Kubota Sakai Co., Ltd. Inside the factory

Claims (3)

[Claims] 1. Conveying means for sandwiching and conveying the rhizome of the harvested vegetables having a bulb portion and a rhizome portion, and acting on the upper surface of the bulb portion which is arranged above the conveying means and is in the middle of conveyance,
In the harvested vegetable processing device having a posture correcting means for making the posture of the rhizome part upright, and a cutting means for cutting the boundary portion between the bulb portion and the rhizome part of the harvested vegetables whose posture is corrected, the posture correcting means Is provided on a swinging link that can swing in the vertical direction, and a torsion spring that applies a biasing force to the swinging link adjusts the twisting strength of the swinging link. A harvested vegetable processing device characterized by being provided freely. 2. The harvested vegetable treatment according to claim 1, wherein the correcting means is provided with a lower limit regulating means for regulating the lower limit position of the vertical swing range so that the lower limit position can be adjusted. apparatus. 3. The cutting means includes a rotary cutting blade, an output shaft to which the rotary cutting blade is fixed, and a drive device for rotating the output shaft, wherein the output shaft is a shaft with respect to the drive device. The harvested vegetable processing apparatus according to claim 1, wherein the apparatus is provided so as to be adjustable in position in the axial direction.