JP2003038152A - Onion foliage cutting equipment - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In an onion foliage processing machine, a foliage cutting processing performed by a pair of rollers is facilitated, and an operation for releasing clogging is facilitated. A helical strip (20a) is provided on at least one of the pair of rollers (20, 21) whose rotational directions are different from each other in accordance with the forward rotation of a driving means (26). In the foliage cutting processing apparatus that cuts the onion with the foliage to be cut while pulling the foliage downward, the pair of rollers 2
Pressing means is provided to press the rollers 0 and 21 against each other, and a releasing means for releasing the pressing when the rollers are rotated in reverse by the driving means is provided. Left and right pair of rollers 20, 2
1 is constituted by a drive roller interlocked with the drive means and a driven roller in contact with the drive roller, and a hydraulic motor 26 as a drive means is provided with a forward or reverse operation oil supply circuit 2
7 and 29, respectively, so that the hydraulic oil is diverted to press-contact hydraulic cylinder mechanisms 25, 25 which branch off from the hydraulic oil supply circuit 27 for normal rotation and press the rollers.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an onion foliar cutting device for use in an onion harvesting machine, a harvesting onion sorting machine, and the like.

[0002]

2. Description of the Related Art Conventionally, there is an onion harvester as disclosed in Japanese Patent Laid-Open No. 2000-92939. In this device, a spiral strip is provided on at least one outer periphery of a pair of rollers whose rotation directions are different from each other according to the forward rotation interlocking by the driving means, and the onion of the onion with the foliage portion supplied between these rollers is provided. In a foliage cutting apparatus that cuts the foliage portion while pulling it downwards, a spring mechanism that presses a pair of rollers against each other is provided, which improves the cutting performance.

[0003]

By the way, in the above-mentioned foliar cutting apparatus, when the jamming of the onion occurs, the driving mechanism is reversed to cancel the jamming, and the jamming is eliminated by interlocking the pair of rollers in the reverse direction. However, if the spring mechanism always works as in the above-mentioned conventional example, the onion cannot be easily pulled out because the pair of roller gaps are always in pressure contact.

[0004]

In order to solve the above problems, the present invention takes the following technical means. That is, the invention according to claim 1 is, among the pair of rollers whose rotation directions are different from each other in association with the forward rotation interlocking by the driving means,
A spiral strip is provided on at least one outer circumference, and in the foliage cutting apparatus for cutting the foliage portion of the onion with the foliage portion supplied between these rollers while pulling out downward, the pair of rollers are pressed against each other. The onion foliage cutting apparatus is characterized in that a pressure contact means is provided in order to release the pressure contact when the drive means reversely interlocks the roller.

Therefore, when the onion having the foliage is supplied between the pair of rollers, the foliage is sandwiched by the action of the rollers rotating in different directions, and the onion is pulled out downward so that the onion is fed downward. However, since the opposing rollers are provided with the pressure contact means so as to be in pressure contact with each other, the foliage portion is cut between the spiral line and the opposing roller surface during the transfer. Further, when the jammed state cannot be achieved and smooth cutting cannot be performed, the drive means is switched to the reverse rotation interlocking side. Then, the pair of rollers that acted to pull out the foliage portion reversely rotate, and the pinching of the foliage portion is released, and the pressure contact by the pressure contact means is released, so that the clogging is eliminated or easily eliminated. .

According to a second aspect of the present invention, a pair of right and left rollers is composed of a driving roller which is interlocked with the driving means and a driven roller which is in contact with the driving roller, and the hydraulic motor as the driving means is for forward rotation or reverse rotation. 2. The hydraulic oil supply circuit for supplying the hydraulic oil to each of the hydraulic oil supply circuits, the hydraulic oil supply circuit for normal rotation being branched from the hydraulic oil supply circuit for forward rotation so as to divert the hydraulic oil to a pressure contact hydraulic cylinder mechanism. The construction of the onion foliage cutting device.

As a result, when the hydraulic motor is rotated by the hydraulic oil from the normal-rotation hydraulic oil supply circuit, the drive roller is rotated in the normal direction, and this is shunted to operate the pressure contact hydraulic cylinder mechanism. On the other hand, when the hydraulic motor is rotated by the hydraulic oil from the reverse rotation hydraulic oil supply circuit, the drive roller rotates in the reverse direction, but the hydraulic oil is not supplied to the pressure contact hydraulic cylinder mechanism and the pressure contact means is released.

[0008]

As described above, according to the first aspect of the present invention, when the pair of rollers are driven to cut the foliage, the pressure contact means acts to improve the cutting performance, while the driving means is switched to rotate the rollers. When the direction is reversed, the pressure contact means is released in synchronism with this, and the pinching of the foliage portion is released, and the cause of clogging can be easily removed.

Further, according to the second aspect of the invention, when the hydraulic motor of the drive means rotates in the normal direction by obtaining the hydraulic oil from the normal rotation hydraulic oil supply circuit, the hydraulic cylinder mechanism as the pressure contact means is operated. When the oil is split and the hydraulic oil from the reverse rotation hydraulic oil supply circuit is obtained to reverse the rotation, the pressure contact hydraulic oil cannot be split, so it is possible to simultaneously operate or release the pressure contact hydraulic cylinders by switching the hydraulic motor. Easy to operate. Moreover, the circuit configuration is simple enough if a circuit for shunting is connected.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. The machine frame 1 on which the foliage processing section, the sorting section, etc. are mounted is composed of left and right long frame members and a ladder frame in which they are connected left and right at several points in the middle, and the rear side has left and right pneumatic tire type ground wheels 2, 2 And a front side is supported by a stand member 3 which can be adjusted up and down.

At the front end of the machine frame 1, a damper column 4 is erected, the upper end of a vertical frame 5a of a raw material container base 5 is pivotally mounted, and a hydraulic cylinder mechanism 16 is provided together with a receiving frame 5b for receiving a raw material container 6. With the expansion and contraction of the container 6, the container 6 can be turned upside down to invert the container 6. Reference numeral 7 denotes a raw material hopper for receiving the onions supplied by reversing the raw material container 6, which is provided in a chute form and has a configuration in which the raw material conveyor 8 can be seen on the lower end discharge side. That is, the engagement lugs 8a, 8a are wide in the left and right.
The raw material conveyor 8 in the form of a belt conveyor having a predetermined interval is provided so as to be slightly inclined rearward and upward from the lower front end, and the raw material hopper 7 is provided on the intermediate portion from the starting end side of the upper conveying surface of the conveyor 8. The onion of the raw material hopper 7 can be pulled out and conveyed while being engaged with the engaging lugs 8a, 8a ... The raw material conveyor 8 is configured to interlock with a driven pulley 8b provided on the lower end side of the slope so as to drive the continuously variable transmission device 9 so that the conveyance speed can be changed. The continuously variable transmission device 9 is a hydrostatic type (HST). ) And an engine 10 that can be mounted on the machine frame 1 by utilizing a dead space formed by the damper columns 4 and the inclined guide surface of the raw material hopper 7.
Driven by.

The feed end side of the raw material conveyor 8 is directed to the first ascending conveyor 11 and the conveyed onion is transferred to the buckets 11a, 11a ... Of the ascending conveyor 11. This ascending conveyor 11 is formed to form a substantially vertical conveying surface and a short horizontal conveying surface, and the intermediate conveyor 12 is seen at the end of the horizontal conveying surface.
The onion goes from the first ascending conveyor 11 to the intermediate conveyor 12
It is a structure that can be supplied to the surface.

The intermediate conveyor 12 has a structure in which a belt conveyor is wound around front and rear pulleys, and power is transmitted to the drive rollers so that the conveying direction is opposite to the horizontal conveying surface of the first ascending conveyor 11. A guide chute 13 is provided on the discharge side thereof so as to supply the onion with the foliage to the foliage processing section 14. Reference numeral 15 is a motor for driving the first ascending conveyor 11, the intermediate conveyor 12, and the later-described ascending conveyor.

Below the intermediate conveyer 12, there is provided a foliage processing section 14 in which a plurality of pairs of a driving roller 20 around which a spiral strip 20a is wound and a driven roller 21 which does not form a spiral strip are provided. The driving roller 20 and the driven roller 21 are alternately arranged.
An unillustrated sprocket is provided on the chain and a chain is wound around the chain to allow rotation interlocking. Meanwhile, the driven roller 2
1 is a drive roller 2 by pressure contact with the pressure contact drive roller 20.
Rotation is interlocked in the opposite direction to 0. These rollers 20 and 21 are, as shown in FIGS.
2 are rotatably provided at the upper ends of the arms 23, 23 ... Which can be swung back and forth, and the adjacent arms different from the pair of rollers for foliar treatment are connected to the rods 24, 24.
It is connected with. Further, the arms 23a at both ends are provided with pistons 25a, 25 of the front and rear hydraulic cylinder mechanisms 25, 25, respectively.
a pair of driving / driven rollers 2 configured to receive the pressure of a.
It is configured to press 0, 21 (pressing means). The pressure oil is supplied to the hydraulic cylinder mechanism 25 by branching from the circuit 27 that becomes high pressure in the normal rotation of the hydraulic motor 26 that drives the drive roller 20 and through the pressure reducing valve 28. In addition, the hydraulic motor 26 is interlocked with the reverse rotation to urgently avoid the trapped state. At this time, the reverse rotation hydraulic oil supply circuit 29 has a high pressure, but since the circuit 27 has a low pressure, the hydraulic cylinder mechanism 25 for hydraulic oil is used.
Supply to the drive roller 20 and the driven roller 21 and the driven roller 21 are released from the pressed state (release means). Since the driving roller 20 and the driven roller 21 rotate in opposite directions, the onion that enters between them is the spiral strip 20.
While being pulled in by a, the foliage is pulled out downward, and finally is forcibly cut by the surface of the driven roller 21 facing the spiral strip 20a. In the illustrated example, the spiral line is formed only on the drive roller 20 side, but it may be formed on the driven roller 21 side or both rollers 20, 21.

Below the plurality of sets of driving rollers 20 and driven rollers 21, a foliage discharging device 30 for receiving cut foliage and weeding is constructed. That is, it is composed of a funnel member 31 and an exhaust fan cylinder 32 connected to the lower surface of the funnel member 31, and an exhaust fan 33 built in the fan cylinder 32 is driven to rotate around a vertical axis 34 which is interlocked with a hydraulic motor 37. This is a configuration in which the foliage portions separated by a discharge tube 35 connected to the fan barrel 32 are collected and discharged. The flange portion 31a formed at the lower end of the funnel member 31 and the flange portion 32a formed at the exhaust fan body 32 are fixedly joined together, but a long hole 36 is formed in either one of them, and the direction toward the discharge cylinder 35 is the vertical axis. It has a configuration that can be changed and adjusted.

The end portion of the foliage treating section 14 corresponds to the vicinity of the rear end portion of the machine frame 1, and the foliage-treated onion is directed toward the conveying start end portion of the second rising conveyor 40 erected at this rear end portion. The configuration is such that it is supplied through the chute 40b. This second
The ascending conveyor 40 is provided with buckets 40a, 40a ... Of the same form as the first ascending conveyor 11, and is configured to supply to the starting end side of the sorting section 40 above the machine casing 1. That is, the upper conveying part of the ascending conveyor 40 is configured to change the path obliquely from the vertical posture, the onion is removed from the bucket 40a at the path changing point, and the sorting section 4 is operated via the chute 40b.
It is transferred to the small beading portion 42 at the first end. This small ball removal part 4
2 has discs 42b, 42b ... Arranged at predetermined intervals on a shaft 42a in the left-right direction, small onions fall downward from the discs 42b, 42b ... gaps, and onions of standard diameter fall. The disc 42b can be transferred to the subsequent sorting conveyor 43 along the end face of the disc 42b, and the two can be separated and sorted.

A small ball chute 44 is provided below the small ball removing section 42, and is housed in a small ball storage container 45 installed on the ground on one side of the machine body 1. The base of the small chute 44 is detachably provided on the machine frame 1, and can be removed when not in operation.

The sorting conveyor 43 is in the form of a roller conveyor, and has a construction capable of transporting an onion having a standard diameter toward the terminal end while rolling. Steps 46 and 46 are provided so as to be located on both sides of the selection conveyor 43, and at these steps 46 and 46, the worker visually inspects the appearance of the onions sequentially sent by the selection conveyor 43 to check for scratches or damage. External products can be selected and placed in the external product receiving boxes 47, 47 beside the sorting conveyor 43. It should be noted that the guide chutes 48, 48 are provided in the respective external product receiving boxes 47, 47.
And communicates with the external goods conveyor 49 via. The external product conveyor 49 is in the form of a belt conveyor and is configured to transfer the external product onion toward the external product storage container 50 installed on the ground on the other side of the machine frame 1 on the side opposite to the small ball storage container 45. . A drop buffer gate 59 is detachably attached to the tip end side of the external product conveyor 49, and when a predetermined weight is accumulated, the receiving body rotates against the spring outside the drawing to drop the onion downward, and to the container 50. It is designed to reduce the impact when it falls. Further, the external article conveyor 49 is provided such that the front end side 49a can be folded around the fulcrum shaft 49c with respect to the main body side 49b portion, and the lateral width can be shortened when not in use.

On the other hand, the onion, which is judged as a non-defective product by visual judgment during the transportation of the sorting conveyor 43, is received by the product conveyor 51. The product conveyor 51 is in the form of a belt conveyor and is driven by the hydraulic motor 52, but is configured to switch to forward / reverse interlocking operation based on the switching operation of the operation lever 53.

The product conveyor 51 is reciprocally movable to the left and right by the support mechanism of the machine frame 1, and the switch 56 is operated in a desired direction in accordance with the selective setting of the forward / reverse switch 56 of the electric motor 55. Can move to. Product containers 57, 5 are provided on the left and right ends of the product conveyor 51.
As shown in FIG. 13, the container stand column 58 is erected on the machine frame 1 so as to be able to rotate laterally around the pivot point of the machine frame 1 so as to be turned outward. The inclination angle can be set by a stretchable member (a turnbuckle in the illustrated example) 60 that connects the left and right container base columns 58 to each other. The container base column 58 can be rigidly fixed by tightening and fixing the base of the column support stay 61 after positioning with the elastic member 60. Container stand prop 58
An upper part of the vertical frame portion 62a of the container base 62 is rotatably supported at the upper end of the container frame 62. A mounting frame 62b on which the container 57 is placed is connected to the vertical frame 62a by a support pin 62c, and tightened in the vicinity. A work posture (FIG. 13) overhanging the tool insertion holes 62d and 62d in an L shape and a storage posture (FIG.
4) and the configuration is fixed by switching. Reference numeral 63 is a tilting hydraulic cylinder that tilts the container base 62 at an arbitrary angle.

The product conveyor 51 has one end 51
a is provided so as to be capable of pivoting upward about the fulcrum shaft 54 with respect to the main body portion 51b and being foldable, and in combination with the above-described lateral movement configuration, the lateral width can be shortened. Next, the shift control mechanism of the raw material conveyor 8 will be described. Detecting means 65 is provided to detect the amount of raw material, that is, the amount of onion from the end portion of the raw material conveyor 8 to the first ascending conveyor 11, and the detection result is the trunnion shaft 66 of the HST 9.
It is configured to try to shift the moving speed of the raw material conveyor 8 between high and low by feeding back to. Of these, the detection means 65
Supports a detection arm 65b having a detection roller 65a rotatably supported at its front end by a shaft 67 on an extension member of the machine frame 1 while appropriately connecting the other end of an operating rod 68 whose one end is interlocked with a trunnion shaft 66. Since the tubular body 70 connected to the sliding shaft 69 and inserted through the sliding shaft 69 is configured to be supported by the shaft 67 integrally with the detection arm 65b, the vertical movement of the detection arm 65b is prevented. Operating rod 6
The reciprocating motion of 8 can be converted, and the trunnion shaft 66 can be interlocked with the forward and reverse rotations.

An interlocking arm 65c is provided on the base end side of the detecting arm 65b, and the interlocking arm 65c and the manual lever 7 are provided.
1 is connected by a rod 72, and the HST output can be changed by a hand operation. In addition, when the "cut" position shown in the figure is operated, the state without HST output, that is, the conveyor 8 stopped state can be selected. Reference numeral 73 denotes a sensitivity adjusting lever, which can adjust the rotation angle of the trunnion shaft 66 according to the rotation angle of the detection arm 65b by changing the relative position of the sliding shaft 69 with respect to the tubular body 70. When the interlocking wire 74 is rotated in the direction of arrow A against the spring 75, the distance (b) between the fulcrum of the shaft 67 and the connecting portion of the operating rod 68 is shortened, and the displacement amount to the trunnion shaft 66 is made small so that the raw material conveyor 8 Reduce the shift range of. When operated in the opposite direction, the spring 75 expands the distance b,
Even if the movement allowance of the same detection arm 65b is large, the displacement amount of the trunnion shaft 66 is large. When the detection arm 65b moves up, the operating rod 68 is pulled to decrease the speed of the raw material conveyor 8, and conversely, when the detection arm 65b moves down, the speed of the raw material conveyor 8 increases.

An operating portion 76 is provided on one side of the sorting conveyor 43, and in addition to the forward / reverse switch 56, the manual lever 71, the sensitivity adjusting lever 73, an elevating lever 77 for elevating the raw material container table 5, left and right product containers. Elevating levers 78, 78 for raising and lowering the table 62 are provided. In addition, equipped with a switching lever that drives each conveyor or interlocks with forward and reverse rotation,
81 is a switching lever that interlocks the first and second ascending conveyors 11 and 40, the external product conveyor 49, and the sorting conveyor 43, 82 is a switching lever that interlocks the product conveyor 51 forward / reversely, and 83 is a drive of the foliage processing unit 14. It is a switching lever that interlocks the roller 20 in the forward and reverse directions. The exhaust fan 33 may have a configuration in which the hydraulic oil is supplied to the hydraulic motor 37 when the engine 10 is started without having a dedicated switching lever (FIG. 7), but a switching lever 84 is separately provided to turn it on and off. It may be provided so that it can be operated at hand (FIG. 14). As shown in FIG. 16, the arrangement configuration of the operation levers in the operation unit 76 in the operation box 85 is "left-out" by the forward / reverse switching for the product conveyor, which is relatively frequently operated during work.
Alternatively, the right and left setting switching lever 82 is placed at the highest position so that it can be operated in the left-right direction, and then the raising / lowering levers 77, 7 for raising / lowering the containers that need to be operated during the work.
Place 8 The switching lever 81 of the sorting conveyor 43, the switching lever 83 of the foliage processing unit, etc., which are operated in accordance with switching between work and non-work, are collectively arranged on the lower side. Further, the manual lever 71 is provided on the left side of the operation box 85, and the sensitivity adjusting lever 7
3 is arranged on the right side, and each can be rotated in the front-back direction. In this way, by arranging similar items close to each other according to the operation frequency, it is possible to prevent erroneous operations due to concentrated operations. Reference numeral 86 is a key switch insertion hole, 87 is an engine tachometer, and 88 is a throttle lever.

The operation of the above example will be described. The machine frame 1 is towed by a tractor and is fixed at the work position.
0 is driven, and the work is started while driving the rotating parts.
The onion harvested from the onion harvester is stored with the foliage part attached, but when this container 6 is placed on the raw material container stand 5 and moved to the raw material hopper 7, the raw material conveyor 8 driven by the output of the HST 9 is driven. By the action of,
It is conveyed toward the first ascending conveyor 11. The onion with foliage scraped up by the ascending conveyor 11 drops from the upper end to the upper surface of the intermediate conveyor 12 and is transferred in the opposite direction, and from the end thereof, the foliage cutting conveyance consisting of the driving roller 20 and the driven roller 21 of the foliage processing section 14. Transferred to the department. The intermediate conveyor 12 can invert or roll the onion while reaching the rollers 20 and 21, so that the posture of the onion is likely to change, and a stagnant or biased conveyance state can be avoided.

On the starting end side of the ascending conveyor 11, the detecting roller 60a as the detecting means 60 contacts the upper surface of the onion and rotates the detecting arm 60b. When the detecting arm 60b is excessive, the speed of the raw material conveyor 8 is slowed down. When it is very low, this can be made faster, and because it was entrusted to the operation of the worker in the past,
Although it was difficult to obtain an appropriate speed, with such a configuration, the conveyor 8 conveyance speed can be automatically controlled, and the worker can concentrate on the sorting work.

In the foliage processing section 14, the drive roller 20 and the driven roller 21 rotate in mutually opposite directions, and the hydraulic oil is supplied to the hydraulic cylinder mechanism 25 as the pressure contact means, so that the hydraulic roller mechanism 25 enters between them. Onion is spiral 20
While the stem and leaf portion is pulled in by a, the stem and leaf portion is pulled out downward, and is finally forcibly cut by the surface of the driven roller 21 facing the spiral strip 20a. The cut foliage portion is received by the funnel member 31, falls further, and is discharged to an appropriate place outside the machine by the action of the exhaust fan 33. In addition, since the direction of the discharge tube 35 can be changed, there is an inconvenience that the foliage to be discharged is pushed back by the wind direction during the outdoor work, but the exhaust fan body 32 is appropriately rotated. This inconvenience can be eliminated by fixing the inconvenience to the funnel member 31.

Here, if the cutting action in the foliage processing section 14 becomes defective, the operating lever 83 is operated to switch to the reverse rotation side. Along with this, the rollers 20 and 21 can be interlocked with each other in the reverse direction to remove the bite of the onion and the like. At this time, since the hydraulic cylinder mechanism 25 is in the non-acting state, the pressure contact of the roller is released, and the above-mentioned bite removal is facilitated.

The onion, which has been subjected to the foliage cutting treatment, is
It is inherited from the terminal end of 21 to the second ascending conveyor 40 and ascends. From the upper end, through the chute 40b, the small ball punching part 4
Up to 2. Here, onions with a diameter of a ball that drop from the gaps between the discs 42b, 42b arranged at preset left and right intervals are collected in a small ball storage container 45 via a small ball chute 44.

Onions with standard diameter are the disks 42b, 42
It reaches the starting end of the sorting conveyor 43 beyond this without dropping from b. Here, while being transferred to the terminal end side while rolling on the roller conveyor surface, the appearance quality is visually determined by the worker waiting on the left and right, and external products such as scratches and scratches are sorted by the worker, It is put into the external product receiving box 47. Outside onion is then outside shot 4
8 and the external product conveyor 49, and then the external product storage container 50 stores the external product.

The non-defective onion reaching the end of the sorting conveyor 43 is fed laterally by the product conveyor 51 and stored in the product containers 57 waiting on the left and right of the machine frame 1. That is, the elastic member 60 is extended to extend the container support column 58.
Tilt outward and fix it with the pillar support stay 61,
The container table 62 is attached, and the product container 57 is tilted to stand by. The product conveyor 51 has a configuration in which it can be switched between forward and reverse rotation.
1, the mounting surface moves to the right and is supplied to the product container 57 waiting on the right. Since the product conveyor 51 can be moved to the left and right, it is possible to adjust the drop position by gradually moving the drop position while monitoring the status of the product container 57 being accumulated. When the filling of the product container 57 on the right side is completed, the driving of the product conveyor 51 is reversed to move to the left side, and similarly, the product container 57 waiting on the left side is supplied. The product container 57 that is full during that time is moved from the container table 62 to an appropriate place.

In the above-described embodiment, the driving roller 20 and the driven roller 21 are pressed by the hydraulic cylinder mechanisms 25, 25, but may be pressed by a spring, and the releasing means may be a spring beyond the fulcrum. As a form, it may be configured so as to switch in conjunction with the roller reversing operation unit.

[Brief description of drawings]

FIG. 1 Side view of a foliage processor

[Fig. 2] Rear view of the foliage processor

FIG. 3 is a plan view of a foliage processing machine.

FIG. 4 is an enlarged side view of a supply / conveyance unit.

FIG. 5 is a plan view of a foliage cutting part.

FIG. 6 is a side view of the foliage cutting part.

[Fig. 7] Hydraulic circuit diagram

FIG. 8 is a plan view of the exhaust fan body.

FIG. 9 is a side view of the exhaust fan body.

FIG. 10: Side view of sorting conveyor

FIG. 11 is a plan view of a product conveyor

[Figure 12] Rear view of product conveyor

FIG. 13: Rear view of product container base

14 (a) and 14 (b) are rear views showing a state in which the product container base is folded and accommodated.

FIG. 15 is a side view of the operation lever.

FIG. 16 is a front view of the operation lever.

[Explanation of symbols]

1 ... Machine frame, 5 ... Raw material container stand, 7 ... Raw material hopper, 8 ...
Raw material conveyor, 9 ... Continuously variable transmission (HST), 11 ... First ascending conveyor, 14 ... Stem and leaf processing section, 20 ... Drive roller, 20a ... Spiral strip, 21 ... Driven roller, 22 ... Frame section, 23, 23 ... Arms, 24, 24 ... Rods, 2
5, 25 ... Pressure contact hydraulic cylinder mechanism, 25a, 25a ... Piston, 26 ... Hydraulic motor, 27 ... Forward rotation hydraulic oil supply circuit, 28 ... Pressure reducing valve, 30 ... Stem / leaf discharge device

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masaaki Omi             No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture             Technology Department Co., Ltd. F term (reference) 4B061 AA02 AA03 BA03 BB07 BB10                       BB12 BB13 CB05 CB16 CB17

Claims (2)

[Claims] 1. A onion with a foliage portion provided between these rollers, wherein a spiral strip is provided on the outer periphery of at least one of a pair of rollers whose rotation directions are different from each other in accordance with the forward rotation interlocking by a driving means. In the foliage cutting apparatus for cutting the foliage portion while pulling it downward, a pressure contact means is provided to press the pair of rollers against each other, and a releasing means for releasing the pressure contact when the driving means reversely interlocks the rollers. An onion foliage cutting device characterized by being provided. 2. A pair of right and left rollers is composed of a driving roller which is interlocked with driving means and a driven roller which is in contact with the driving roller. The hydraulic motor as the driving means has a forward rotation or reverse rotation hydraulic oil supply circuit, respectively. 2. The onion foliage cutting apparatus according to claim 1, wherein the hydraulic oil supply circuit for switching forward supplies the hydraulic oil to a pressure contact hydraulic cylinder mechanism that branches from the hydraulic oil supply circuit for normal rotation and presses the roller. .