JPH0767382B2 - Onion rhizome cutting machine - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

TECHNICAL FIELD The present invention relates to a device capable of cutting off a root and a leaf stem of an onion (including an onion-like crop, the same applies hereinafter) collectively.

2. Description of the Related Art As a device of this type, a center positioning device for an onion makes a center height position of the onion constant irrespective of the shape and size of the onion so as to sandwich the onion from both left and right sides. A cutter that is supplied to a piece and is vertically movable with the cutting surface being horizontal in the movement range of the onion sandwiched by the sandwiching piece that is reciprocally movable for a certain stroke, and a guide fixed to the support of this cutter. A cutting device consisting of a piece and a cutting device provided on the upper and lower sides with the respective cutters facing each other, and biasing means provided on each of the cutters so that the cutters come close to each other. It has been known.
(JP-A-60-241878).

【problem】

Since this device has a structure for sandwiching the onion to be processed from the left and right direction, it is necessary to first position the onion by the positioning device so that the center height position thereof becomes constant, and then supply the onion to the sandwiching piece. In addition, since the guide piece for positioning the cutter directly contacts the corm portion of the onion to move the cutter up and down for positioning, a long leaf stem that has been harvested from the field is attached. It was difficult to treat the onion, and first, there was a problem to be solved, such as the need to remove the foliage by pretreatment.

[Object of the Invention]

An object of the present invention is to provide a device capable of simultaneously cutting off the rhizome of an onion harvested from a field in such a state as it is.

[Constitution of the invention]

The gist of the present invention is to rotate a circular orbit having a circular shape in a plan view, and to project the root of the onion upwards and hang the leaf stem downward, a plurality of onion bulbs that can be clamped from the vertical direction. An onion clamping means, each of the onion clamping means is composed of a fixed receiving part and a movable pressing part provided below the fixed receiving part,
The fixed receiving portion is composed of an arm projecting horizontally from a rotation drive shaft that is rotatably erected, and an onion receiving portion fixed to the tip of the arm. A swinging arm that is swingably supported in the vertical direction by a receiving portion, an onion placing portion provided at the tip of the swinging arm, and the swinging in a direction in which the onion placing portion is stacked toward the onion receiving portion. The swinging arm is engaged with an engaging edge of an upper end of a cylinder provided coaxially around the rotary drive shaft, the biasing member including an elastic member for biasing the arm. By
The onion mounting portion is displaceable along with the rotation operation from a position close to the onion receiving portion to a position separated from the onion receiving portion, and the onion sandwiching means is a corm of the onion in a certain section of the orbit. The root cutting blade member is vertically movable to the onion bulb at a suitable position near the upper limit of the rotation range where the part is clamped, and the movable position is near the lower limit of the rotation range. A rhizome cutting machine for an onion, comprising a detection piece that comes into contact with the pinching portion and a cutting blade member for cutting off the foliage, which is positioned by the detection piece. Hereinafter, one embodiment will be described in detail with reference to the drawings.

【Example】

In FIG. 1, the onion holding means 1, 1, ... Is composed of upper fixed receiving portions 2, 2, ... And movable holding portions 3, 3, ..., The fixed receiving portions 2, 2 ,. One end is fixed to a projecting edge 4a provided in the vicinity of the upper end of a rotary drive shaft 4 standingly provided as a drive unit for supporting and driving the onion sandwiching means 1, 1 ,.
Arms 2a, 2a that extend radially in the horizontal direction around
, And ring-shaped onion receiving portions 2b, 2b, ... fixed to the other ends of the arms 2a, 2a. The arm 2a includes support rods 2c, 2 for supporting the movable pinching portion 3 near the middle thereof.
c, ... are erected. The movable pinching portions 3, 3, ... Are two parallel arms 3b, 3c pivotally attached to the intermediate portions of the support rods 2c, 2c ,. , A parallel crank obtained by a connecting piece 3d pivoted in parallel with the supporting rods 2c, and a substantially field hoof-shaped onion placing portion 3a protruding horizontally from the connecting piece 3d. One end of an arbitrary one of the parallel arms 3b extends near the rotary drive shaft 4 as a swing arm, and an end portion 3b '... of the parallel arm is provided outside the rotary drive shaft 4. An upper edge of a cylindrical cam 5 fixed concentrically is press-contacted by a tension spring 6 stretched between a lower end of a support rod 2c and a parallel arm 3b as a swing arm. The onion holding means 1 including the fixed receiving portion 2 and the movable holding portion 3 has a rotary drive shaft 4 and an engaging edge 5 a of the cylindrical cam 5.
It rotates along a predetermined orbit defined by and. That is, the onion receiving part 2b rotates in a circular orbit in one plane, and the onion placing part 3a moves the parallel arm 3b to the highest part 5b of the engaging edge as the rotary drive shaft 4 rotates. When I got on,
It descends the most, gradually rises as it descends from the summit, and when it engages with the lowest part of the engagement edge, it rotates while moving up and down so as to be located immediately below the onion receiving part 3a. Now, at the position where the onion placing part 3a has largely descended, remove the onion from the root.
Assuming that the leaf stem 32 is attached to the onion placement part with the 30 facing upwards and hanging from the central cavity of the onion placement part 3a.
In FIG. 1, as it rotates counterclockwise,
The onion device portion 3a starts to rise, and finally the upper surface of the onion bulb portion comes into contact with the onion receiving portion 2b, and when further rotated, the engagement between the parallel arm 3b and the engaging edge 5a is released, and the onion bulb portion 31 is , Spring 6
By being pressed against the onion receiving part 2b by the elastic force of
It is firmly clamped from above and below. At this time, the onion root 30 projects upward from the circular opening of the onion receiving portion 2b. Engagement edge
The shape of 5a is determined so that the onion sandwiching means 1 can rotate a certain section of the orbit as it is with the onion sandwiching means 1 sandwiching the onion. The cutting machine of the present application is a cutting device for cutting the root 30 projecting upward from the onion receiving portion 2b at an appropriate position near the upper limit of the turning range in which the onion holding means 1 turns while holding the above onion. A leaf stem portion that faces the blade member 7 and projects downward from the onion placement portion 3a and hangs down at a proper position near the lower limit of the rotation range.
The cutting blade member 8 for cutting out 32 is exposed. The cutting blade member 7 for cutting off the root portion has a detection plate 7b in proximity to the bottom of the rotary blade 7a, and its rotation shaft 7d is swingable to a bearing portion 7c standing on the fixed side of a frame or the like (not shown). It is supported, and about this support part 7c, the cutting blade member 7
The balance weight 7e provided on the opposite side to the cutting blade member 7
Can be pushed upward with a slight force. The detection plate 7b has its tip divided into two parts and has a space for introducing an onion root part and is slightly warped upward, so that the individual differences in shape, size, etc. of the individual corm portions sandwiched by the onion sandwiching means 1 are present. Depending on this, since the height of the base of the beard root 30 protruding from the onion receiving portion 2b is different, the detection plate is pushed upward by the corm portion bulging from the onion receiving portion 2b according to this individual difference. The rotary blade in the proper position on the root line
It is designed so that 7a is located. For exactly the same purpose, the cutting blade member 8 for cutting off the foliage comprises a rotary blade 8a that is driven to rotate by a flexible shaft 8b, a support rod 8c whose one end is fixed to the outer tube of the flexible shaft 8b, and the support rod. 8c has a suspension device elastically supported by a coil spring 8e in a guide tube 8d, and the rotary blade 8a is supported movably up and down within a certain range, and similarly to the support rod 8c, one end is attached to the outer tube. Has a position detection piece 8f which is fixed and extends along the rotation area of the onion placing portion 3a. The lower limit of the rotation range in which the onion clamping means 1 rotates in a state of clamping the onion bulbs is defined by the lower part of the movable pinching portion 3, which is a solid of the size of the bulbs of the onion to be clamped. Depending on the difference, it fluctuates up and down each time. Therefore, in order to cut the leaf stem from the corm portion at a substantially constant position, it is necessary for the rotary blade 8a to move up and down in accordance with this vertical movement.
Then, the proper position of the lower side of the movable pinching portion 3 comes into contact with the inclined portion 8f ′ provided at the free end of the detection piece 8f, and then by pushing and rotating the inclined portion 8f ′, the rotary blade 8a reaches the desired position. It is configured to be pushed up.

[Action]

The apparatus according to the above-described embodiment having the above-described structure is configured such that the cylindrical cam 5 causes the onion placement section to hang downward at the position where the onion placement section is most lowered, and the onion placement section with the root upward. Attach to. The onion clamping means 1 pivots towards the cutting blade member 7 and with it the end 3 of the parallel arm 3b of said means.
b ′ descends from the top of the engaging edge 5a of the cylindrical cam 5, and the onion placing portion rises accordingly, and the onion bulb portion is clamped. In this state, the onion sandwiching means 1 first cuts the root cutting blade member 7
The root is excised when passing just below the blade, and the leaf stem is subsequently excised when passing just above the cutting blade member 8 for cutting off the stem. When the onion clamping means 1 clamps only the corm and further rotates and the parallel arm 3b engages with the uphill at the engagement edge 5a of the cylindrical cam, the onion placing part 3a begins to descend and the clamping is released. To be done. Then, the onion bulb portion is dropped into the chute 11 by a drop bar 10 provided at an arbitrary position on the way to the untreated onion attachment position so as to project into the passage area of the corm portion 31. In the above embodiment, the fixed receiving part is provided on the upper side, and the movable pinching part is provided on the lower side.However, this is the opposite. The movable pinching part may be provided on the upper side. Further, the onion sandwiching means may rotate continuously or intermittently. Further, in the embodiment shown in FIG. 1, a rotating brush for urging the whisker root to stand may be provided in the vicinity of the upper limit of the rotation range to reach the cutting blade member for root cutting. The present invention has been described as an onion rhizome treatment device, but it is naturally applicable to crops having a shape similar to onions such as garlic and turnip (onion-like crops),
In the present application, the term “onion” is used to include an onion-like crop.

【effect】

The onion rhizome cutting machine of the present application has an onion, which has a pinching means for pinching the root of the onion upward and hanging a heavy leaf stalk downward, so that the mounting position of the onion is extremely stable and solid. It is possible to rotate an object with a large difference in an orbit that is almost constant, so that the cutting blade members near the upper and lower limits of the rotation range ensure that the roots and leaf stems are in a substantially constant position. Was successfully excised. Further, in the configuration having the sandwiching means for sandwiching the onion from above and below in the state where the leaf stem is suspended, the detection piece provided on the cutting blade member for cutting off the leaf stem is provided in the movable sandwiching portion of the sandwiching means. By contacting, it is possible to position the cutting blade member, so that the onion with long leaf stem as harvested from the field can be used as it is at a substantially constant position regardless of the size of the corm portion. The stem and root can be excised. Further, with this configuration, since the operation of supplying the onion to the sandwiching means is easy, the work efficiency is high.

[Detailed Description of Drawings]

FIG. 1 is an explanatory diagram showing a main part of an embodiment of the present invention.

Claims (1)

[Claims] Claim: What is claimed is: 1. A circular orbit having a circular plan view is rotated,
The onion bulb has a plurality of onion holding means capable of holding the onion bulb in the vertical direction in a state where the root portion of the onion protrudes upward and the leaf stem portion hangs downward, and each of the onion holding means has a fixed receiving portion and the The fixed receiving portion is provided below the fixed receiving portion, and the fixed receiving portion is fixed to an arm protruding in the horizontal direction from a rotation drive shaft that is rotatably erected and a tip of the arm. The movable pinching portion comprises an oscillating arm supported by the fixed receiving portion so as to be vertically swingable, an onion placing portion provided at the tip of the oscillating arm, and And a biasing means for biasing the rocking arm in a direction in which the onion mounting portion is stacked on the onion receiving portion, the engagement edge at the upper end of a cylinder coaxially provided around the rotary drive shaft, By engaging the vicinity of the base end of the swing arm, the onion mounting portion is Up to a position spaced from the position close to the Welsh onion receiving is displaceable, the onion clamping means,
In a certain section of the orbit, in a suitable position near the upper limit of the rotation range in which the bulb part of the onion is rotated while holding the bulb part of the onion, the root resection cutting blade member is faced to the onion bulb part so as to be vertically movable, and A rhizome cutting machine for an onion, which comprises a detection piece which comes into contact with the movable pinching portion and a cutting blade member for cutting off the foliage, which is positioned by the detection piece, at a suitable position near the lower limit of the rotation range.