JP2000201664A - Peeler for leek - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leek peeler capable of efficiently peeling leeks by controlling flow of air, and preventing scattering of the peels. SOLUTION: This peeler is provided with a conveying means 20 which continuously conveys leeks 1 while suspending them and a peeling means 30 which peels off the skin 4 of the leek 1. The peeling means 30 is composed of (1) a receiver/conveyor 31 freely rotating along the leek holding/conveying route A and having a belt 36 with which the stems 2 of the leeks 1 are freely coming into contact, and (2) an air supplying device 41 facing the belt 36. The air supplying device 41 is provided with air supplying sections 42, 43 and 44 at different positions in the leek conveying direction, their nozzles 53 being freely opened or closed and going down in the descending order. Each of these air supplying sections 42, 43 and 44 has a freely rotating hemicylindrical cover 50 covering the stem 2 between itself and the belt 36, and the nozzle 53 is opened when the cover faces the belt 36 to blow downward wind B onto the cover 50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an onion such as white onion, which leaves necessary leaves and peels off unnecessary skins (such as dead leaves including dead leaves) efficiently without human intervention. The present invention relates to an onion peeling apparatus.

[0002]

2. Description of the Related Art Conventionally, for example, when harvesting white onions (onions) and shipping them to a market, it is necessary to remove dead leaves and unnecessary leaves that are not edible. This work (adjustment work) is conventionally performed by a manual or simple device for individual farmers, but more efficient mechanization is progressing toward joint collection and shipment.

That is, for example, Japanese Patent Application Laid-Open No. H10-570
No. 32, for example. This conventional configuration comprises moving means for holding the leaves and continuously transporting the onion in a suspended manner, root moving means for cutting the root of the onion being suspended and transported by the moving means, and cutting the root. Peeling means for peeling the skin from the leek. And the skin peeling means, a plurality of ejection units for ejecting fluid obliquely downward to the stem portion of the onion to be moved laterally are arranged along the lateral movement direction, and the ejection holes of each ejection unit are Those located on the downstream side with respect to those located on the upstream side in the lateral movement direction are located below.

[0004]

However, in the above-described conventional construction, since the peeling means is in an open state, the consumption of the blast air (fluid) is increased, and the peeled skin is removed. It is scattered and the working environment is bad.

Accordingly, the present invention according to claim 1 of the present invention provides an onion peeling apparatus capable of controlling the flow of air to perform efficient peeling and preventing the peeled skin from scattering. It is the purpose.

[0006]

In order to achieve the above-mentioned object, an onion peeling apparatus according to claim 1 of the present invention holds an onion whose root has been cut and its leaves. And a peeling means for peeling skin from the onion being suspended and transported by the hanging and transporting means. The peeling means comprises a long stripping means. A receiving conveyor device rotatably disposed along the green onion holding and transporting path, the stem of the green onion being able to abut the vertical belt, and a wind disposed opposite the belt of the receiving conveyor device. Supply device, this wind supply device,
At a plurality of locations in the transport direction of the onion, there are wind supply units in which openable and closable nozzles are gradually lowered, and each of the wind supply units is a half-split cylindrical shape that surrounds the stem of the onion with a belt. The cover is rotatable around the longitudinal axis, and when the cover is opposed to the belt, the nozzle is opened to blow downward wind into the cover. It is what it was.

Therefore, according to the first aspect of the present invention, first, the onion is supplied to the starting end portion of the onion holding / transporting path by a manual operation, and is held by the hanging / conveying device via the leaf portion. At this time, the holding of the onion is performed at a pitch that can be surrounded by the cover, and in a state where the stem portion is in contact with the belt.
Next, the green onions are transported to the air supply unit, where the skins such as unnecessary leaves are peeled off from the green onions suspended and transported.

[0008] That is, when the onion is opposed to a good wind supply section, the rotating covering body surrounds the stem portion of the onion,
Then, a downward wind is blown toward the upper part of the stem and the part of the skin peeling through the nozzle opened by the cover body facing the belt, thereby initial peeling (peeling off).
Can be performed. Furthermore, the onion can be moved to the lower side without any trouble by opening the side portion of the cover by continuous rotation.

In this manner, the onions are sequentially opposed to the lower wind supply unit, and the peeling of the skin is performed by injecting downward wind in the same manner as the above-described upper wind supply unit.
At that time, by gradually lowering the nozzle, the part of the skin peeling part was displaced from the middle part of the stem to the lower part, and the process from peeling in the middle of the skin to the last peeling was continuous. Can be done.

In such stripping, the jet of wind is
The air consumption can be minimized while controlling the flow in the area surrounded by the cover and the belt, and the belt with some slack can be tightly attached to the cover by the negative pressure of the wind. By being in the state, stripping can be performed with the aim of increasing the efficiency of the wind. In addition, when the cover body is rotated away from the position facing the belt, the wind injection from the nozzle can be automatically stopped. Then, peel the peeled off skin,
Can be recovered by flowing with the wind.

According to a second aspect of the present invention, there is provided an onion peeling apparatus according to the first aspect, wherein the wind supply device comprises a fine wind supply portion whose nozzle is opposed to an upper portion of the stem portion. And an intermediate wind supply unit in which the nozzle faces the middle part of the stem, and a lower wind supply unit in which the nozzle faces the lower part of the stem.

Therefore, according to the second aspect of the present invention, the peeling of the onion by the peeling means for the onion being transported in a suspended state is performed by first performing the initial peeling by the good wind supply unit and then supplying the intermediate wind. The middle part of the stem is peeled off by the part, and then the last peeling off of the lower part of the stem can be performed by the lower wind supply part.

According to a third aspect of the present invention, there is provided an onion peeling apparatus according to the first or second aspect, wherein the hanging and conveying means, the receiving conveyor device, and the wind supply device are synchronously driven. It is characterized by having.

Therefore, according to the third aspect of the present invention, the relative movement (sliding contact) of the stem with respect to the belt of the receiving conveyor device.
It can be performed in the absence of the stalk, and the surrounding rotation of the cover with respect to the stem can be accurately performed.

According to a fourth aspect of the present invention, there is provided an onion peeling apparatus according to any one of the first to third aspects, wherein each of the wind supply sections of the wind supply apparatus has a vertical axis. The present invention is characterized in that a cover member rotatable around the cover member is provided at a plurality of positions equidistantly arranged in the rotation direction.

Therefore, according to the fourth aspect of the present invention, the number and the rotation speed of the cover can be set in accordance with the transport speed and the transport pitch of the hanging transport device.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
This will be described with reference to FIGS. In addition, each part of the onion (white onion etc.) 1 from which the root part was cut is called a stem part 2 and a leaf part 3 in order from the lower part to the upper part, and the leaf to be stripped is unnecessary leaf (peel) 4 Called.

The onion peeling apparatus has a long box-shaped main body 10, and a gantry 11 serving as a cover is disposed on the main body 10. The gantry 11 is divided into right and left, and a slit 12 in the front-rear direction is formed at an upper part thereof, and front and rear ends are open.

On the gantry 11, there is provided a suspending / transporting means 20 for continuously transporting the onion 1 whose root has been cut in a suspended manner while holding the leaf portion 3. That is, the hanging and conveying means 20 is composed of a pair of left and right belt conveyors 21, and these belt conveyors 21 have a pair of ring bodies 23 and 25 rotatable around vertical axes via vertical axes 22 and 24. A belt 26 is wound between the ring bodies 23 and 25, and one of the longitudinal axes 22 is interlocked with a driving device 28 via an interlocking device 27.
A green onion holding conveyance path A is formed along the movement path 6.

On the outer surface side of the belt 26, projections 29 also serving as markers are provided at a plurality of places at predetermined intervals in the rotation direction (length direction), and are held between the belts 26. The onion 1 is configured to be positioned by the left and right protrusions 29. The vertical axes 22, 24 are
It is supported on the gantry 11 side via a bracket 13,
The driving device 28 is also supported on the gantry 11 side via appropriate supporting means. The interlocking device 27 and the driving device 28 may be disposed on the main body 10 with one of the longitudinal axes 22 extending downward.

Between the main body 10 and the suspending / transporting means 20 and in the gantry 11, a skin for peeling off the unnecessary leaves (skin) 4 from the onion 1 being suspended and transported by the suspending / transporting means 20 is provided. Stripping means 30 is provided. That is, the skin peeling means 30 is constituted by the receiving conveyor device 31 located below the belt conveyor 21 on one side and the wind supply device 41 located below the belt conveyor 21 on the other side.

The receiving conveyor 31 has vertical axes 32, 34.
A pair of wheels 33, 3 rotatable about the longitudinal axis through
5, a belt 36 is wound between these wheel bodies 33 and 35, and one longitudinal axis 32 is interlocked with the longitudinal axis 22. Thus, the receiving conveyor 31 is constituted by both belt conveyors. 21 and is driven synchronously. That is, the receiving conveyor device 31 is configured such that the vertical belt 36 is rotatably disposed along the onion holding and conveying path A, and the stem portion 2 of the onion 1 comes into contact with the belt 36. Is done. The width (height) of the belt 36 in the receiving conveyor device 31 is longer than the length of the stem 2 of the onion 1.

The wind supply device 41 disposed opposite to the belt 36 of the receiving conveyor device 31 having the above-described configuration is configured to generate the unnecessary leaves 4 by the downward wind, that is, the downward high-pressure air B.
It has a wind supply unit in which a freely openable and closable nozzle is gradually lowered at a plurality of locations in the transport direction of the green onion 1. That is, the wind supply device 41 moves from the upper side (upstream side) to the lower side (downstream side) in the transport direction of the onion 1.
In order, the good wind supply part 42 whose nozzle is opposed to the upper part of the stem part 2, the single (plural) intermediate wind supply part 43 whose nozzle is opposed to the middle part of the stem part 2, and the nozzle is the stem part The lower part 2 is provided with a lower wind supply part 44 facing the lower part.

The air supply units 42, 43, and 44 have substantially the same configuration except that the height positions of the nozzles are different, and the same reference numerals are used in the following description.

That is, from the main body 10 side, a cylindrical body 45 also serving as a duct for supplying high-pressure air B is erected, and the lower end of the cylindrical body 45 is located in the space 14 in the main body 10. Is supported on the gantry 11 side. A rotating cylinder shaft 46 is rotatably fitted around the longitudinal axis 47 on the cylinder 45, and the lower portion of the rotating cylinder shaft 46 is rotatable toward the main body 10 via the rotation support 48 at that time. It is supported by.

On the side of the rotary cylinder shaft 46, at a plurality of positions at equal angles in the rotation direction, a half-cylindrical cover 50 that surrounds the stalk 2 of the green onion 1 with the belt 36 has a vertical axis. Heart 47
It is rotatable around. That is, the rotary cylinder shaft 4
Covers 50 are provided at two places displaced by 180 degrees on the outer peripheral side of 6, and these cover bodies 50 are formed in an arc-shaped gutter-like shape, and are provided on the outer surface side with a recess 51 for injection.
Are formed. The cover body 50 is connected to the rotary cylinder shaft 46 via two (upper and lower) connecting members 52 at upper and lower positions.

A nozzle 53 is disposed on the surface of each cover body 50 facing each other at both edges so as to be inclined downward, and the inclination angle may be freely changed at this time. Here the nozzle 53
In the good wind supply section 42, the upper part of the stem section 2 is opposed to the upper part of the stem section 2, in the intermediate wind supply section 43, the middle section is opposed to the intermediate section of the stem section 2. 2 and are gradually shifted downward so as to be opposed to the lower portion of 2. The two nozzles 53 are connected to the rotary cylinder shaft 46.
Is connected through a pipe 55 to a distributor 54 fixed to the distributor 54. Here, the inner end of the distributor 54 is penetrated by the rotary cylinder shaft 46.

When the cover 50 faces the belt 36, the nozzle 53 is opened to blow high-pressure air B, which is a downward wind, into the cover 50. That is, at the rotation level of the distributor 54 in the cylindrical body 45, a communication hole 56 is formed at a portion facing the receiving conveyor 31, so that the distributor 50 is configured such that the cover 50 faces the belt 36 of the receiving conveyor 31. More specifically, the cover 50 is configured to communicate with the cylinder 45 only immediately before the cover 50 is fitted to the belt 36 and immediately after the cover 50 is separated. An example of each of the wind supply units 42, 43, and 44 is configured by the above 45 to 56.

Each of the air supply units 42,
High-pressure air supply means 6 for supplying high-pressure air B to 43 and 44
0 is provided. That is, the lower end of the cylindrical body 45 is communicated with a common air duct 61 arranged in the space 14, and the air duct 61 is communicated with a high-pressure air generator 62 installed in the space 14. , 62 constitute an example of the high-pressure air supply means 60.

Further, in the space 14, rotation driving means 65 for rotating the respective wind supply units 42, 43 and 44 synchronously.
Is provided. That is, a passive gear 66 is fixed to the lower end of the rotary cylinder shaft 46, and a driving gear 67 meshed with the passive gear 66 is interlocked with the rotation driving device 68,
Thus, an example of the rotation driving means 65 is constituted by 66 to 68 and the like. The hanging and conveying means 20, the receiving conveyor device 31, and the wind supply device 41 are driven synchronously.

Below the position where the cover body 50 faces the belt 36, an opening 15 is formed on the main body 10 side, and a chute-like collecting section 16 is formed below the opening 15. I have. Note that the collection unit 16 is provided with a lid 17 that can be opened and closed.

The operation of the above embodiment will be described below.

In the onion peeling apparatus, the driving device 2
8, the hanging conveyor 20 and the receiving conveyor 31
Are driven synchronously, and the respective wind supply units 42, 43, 44 are synchronously rotated by the rotation driving means 65, and are driven synchronously with the hanging and conveying device 20 side.

During such synchronous driving, first, the onion 1 whose root is cut off is supplied manually to the start end of the onion holding and conveying path A. The supplied onion 1 has its leaves 3 held by the hanging and conveying device 20. That is, the leaves 3 of the onion 1 are held between the pair of belts 26, and the stems 2 are brought into contact with the belt 36 of the receiving conveyor device 31. At this time, the holding between the belts 26 is performed using the projections 29, so that the onion 1 is conveyed in a suspended manner by the suspending and conveying means 20 at a pitch surrounded by the cover 50.

During transportation in such a suspended state, the onion 1 is transported to the portion of the wind supply device 41 of the skin peeling means 30, where the onion 1 is removed from the onion 1 in the suspended transportation. Stripping is performed.

That is, the green onion 1 is first supplied to the good wind supply unit 4.
2 and an initial peeling (peeling) is performed. As shown by the solid line in FIG. 3, one rotating body 50 surrounds the stem 2 of the onion 1, and both edges of the body 50 are in contact with the belt 36. The high-pressure air B from the high-pressure air supply means 60 is supplied to the cylinder 45, the communication hole 56,
After passing through the distributor 54 and the pipe 55, it is performed by being injected from the nozzle 53.

That is, downward high-pressure air B is jetted from the nozzle 53 opened by the cover 50 facing the belt 36 toward the upper part of the stem 2 and the part where the unnecessary leaf 4 is peeled off. This is done by: At this time, the high-pressure air B is injected by controlling the flow into the injection concave portion 51 surrounded by the cover 50 and the belt 36. The belt 36 has a small amount of slack and has a certain amount of slack.
Is in close contact with the cover body 50 due to the negative pressure of the air, so that the separation can be performed more efficiently and reliably. The high-pressure air B flowing downwards is
5 to the collection unit 16.

The above-mentioned initial peeling is performed by the above-described hanging and conveying means 20, the receiving conveyor device 31, and the air supply device 41.
Are carried out in a state where they are continuously driven synchronously. By the rotation of the cover 50, for example, as shown by the phantom line in FIG. 3, the injection concave portion 51 is opened from the side portion, whereby the green onion 1 is moved without any trouble to the intermediate wind supply portion 43 side. You. Further, the rotation of the cover 50 causes the distributing body 54 to be disengaged from the communication hole 56, so that the injection from the nozzle 53 is automatically stopped.

Next, the green onion 1 is opposed to the intermediate wind supply unit 43, and in the same manner as the above-mentioned fine wind supply unit 42, toward the intermediate portion of the stem 2 and the portion of the stripped portion of the unnecessary leaf 4,
By injecting the downward high-pressure air B, the intermediate peeling is reliably performed. Then the green onions 1
The high-pressure air B having a high pressure facing downward at a lower portion of the stem portion 2 and at a portion where the unnecessary leaf 4 is peeled off in the same manner as the above-described fine wind supply portion 42 and intermediate wind supply portion 43.
Is ejected, the final stripping is reliably performed.

The unnecessary leaves 4 thus peeled off in a blow-off state together with the high-pressure air B pass from the opening 15 to the collecting unit 1.
6 and is collected, so that scattering is small and collection is easy. Then, the unnecessary leaves 4 stored in the collecting unit 16 are removed by opening the lid 17 as appropriate. In addition, the collection unit 1
When a fan for sucking unnecessary leaves is provided in 6, the collection effect is further enhanced.

As described above, cutting of the root and unnecessary leaves 4
Is removed from the end portion of the onion holding and conveying path A, and then the unnecessary leaf portion 3 is cut and removed in order to make the shipping length constant. .

Next, another embodiment of the present invention will be described with reference to FIG.

That is, each of the wind supply units 42, 43, 44
Covering bodies 50 are provided at four positions displaced by 90 degrees on the outer peripheral side of the rotary cylinder shaft 46.

[0044]

According to the first aspect of the present invention, while the onion is suspended and conveyed, the onion is successively opposed to the plurality of wind supply units, and in each wind supply unit, the stem of the onion is rotated by the rotating cover. From the upper part of the stem to the middle part by spraying downward wind toward the part of the peeling part of the stem through the nozzle opened by surrounding the part and the cover body facing the belt. And peeling of the skin can be performed, and the process from peeling in the middle to final peeling can be performed continuously.

In such stripping, the jet of wind is
For the part surrounded by the covering body and the belt, it can be performed while controlling the flow and minimizing the wind consumption,
In addition, the belt with some slack is brought into close contact with the cover due to the negative pressure of the wind, so the stripping can be done until the last stripping with the aim of improving the efficiency of the wind In addition, since the cover comes off the position facing the belt by rotation, the wind injection from the nozzle can be automatically stopped. Then, since the skin peeled off in a blow-off manner can be collected by flowing along with the wind, the scattering is small and the collection is easy. Further, since it is possible to cope with continuous operation instead of intermittent operation, it is possible to improve facility performance.

According to the second aspect of the present invention,
The peeling of the skin of the leek by the peeling means on the onion during the hanging transportation is performed by first performing the initial peeling by the good wind supply unit, then performing the intermediate peeling of the stem by the intermediate wind supply unit, and then using the lower wind By performing the last stripping of the lower part of the stem by the supply unit, it can be smoothly performed in a stepwise manner.

According to the third aspect of the present invention, it is possible to perform the operation without the relative movement (sliding contact) of the stem relative to the belt of the receiving conveyor device, and to accurately rotate the enclosing body with respect to the stem. Can be systematized without deteriorating the quality of onion.

Further, according to the fourth aspect of the present invention, the number and the rotation speed of the covers can be set in accordance with the transport speed and the transport pitch of the hanging transport device, and the whole can be configured efficiently.

[Brief description of the drawings]

FIG. 1 shows an example of an embodiment of the present invention and is a perspective view of an onion peeling apparatus.

FIG. 2 is a vertical sectional front view of the onion peeling apparatus.

FIG. 3 is a cross-sectional plan view of a main part of the onion peeling apparatus.

FIG. 4 is a vertical sectional front view of a main part of the onion peeling apparatus.

FIG. 5 is a partially cutaway side view of a main part of the onion peeling apparatus.

FIG. 6 shows another embodiment of the present invention and is a perspective view of an onion peeling apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Onion 2 Stem part 3 Leaf part 4 Unnecessary leaf (skin) 10 Main body 11 Stand 15 Opening part 16 Recovery part 20 Hanging conveyance means 21 Belt conveyor 26 Belt 28 Drive device 29 Projection 30 Skin peeling means 31 Receiving conveyor device 36 Belt 41 Wind supply device 42 Upper wind supply unit 43 Intermediate wind supply unit 44 Lower wind supply unit 45 Cylindrical body 46 Rotating cylindrical shaft 47 Vertical axis center 50 Covering body 51 Injection recess 53 Nozzle 54 Distributor 55 Pipe 56 Communication hole 60 High pressure Air supply means 65 Rotation drive means A Onion holding conveyance path B High-pressure air (wind)

Claims (4)

[Claims] 1. A hanging transport means for continuously transporting an onion whose root has been cut in a hung state while holding its leaves, and a method of transporting the onion which is suspended and transported by the hanging transport means. Peeling means for peeling, the peeling means being rotatably disposed along the onion holding and conveying path, and the stem portion of the onion being able to freely contact the vertical belt. It is composed of a receiving conveyor device and a wind supply device disposed opposite to the belt of the receiving conveyor device, and the wind supply device gradually lowers openable and closable nozzles at a plurality of locations in the transport direction of the onion. Each of the wind supply units has a half-tubular cover that surrounds a stem portion of the onion between the belt and the belt so as to be rotatable about a vertical axis. When the cover faces the belt, the nozzle opens and blows downward wind into the cover An onion peeling apparatus characterized in that the onion peeling apparatus is configured to perform the following. 2. A wind supply device, comprising: a good wind supply unit having a nozzle facing an upper part of a stem; an intermediate wind supply unit having a nozzle facing an intermediate part of the stem; and a nozzle having a lower part of the stem. 2. The onion peeling apparatus according to claim 1, further comprising a lower wind supply unit facing the lower surface. 3. The onion peeling device according to claim 1, wherein the hanging and conveying means, the receiving conveyor device and the wind supply device are driven synchronously. 4. The wind supply unit of the wind supply device has a plurality of covering members rotatable around a vertical axis at a plurality of positions equiangularly arranged in the rotation direction.
4. A leek peeling apparatus according to any one of items 1 to 3.