JPH0220275A - Skinning device of long welsh onion - Google Patents

Abstract

PURPOSE:To automatically and continuously skin aged epidermis of long Welsh onion almost without requiring a hand by vertically holding leaf part of long Welsh onion, continuously transporting in the horizontal direction and spraying compressed air upon white root part of long Welsh onion by using a fixed air jetting mechanism and successively slant air jetting mechanisms in the middle of the transportation. CONSTITUTION:This skinning device of long Welsh onion consists of the following mechanisms (a-c). (a) A long Welsh onion transportation mechanism (1) to vertically hold a long Welsh onion (2) and to continuously transport the long Welsh onion in the horizontal direction, (b) a fixed air jetting mechanism (6) which sprays compressed air upon the long Welsh onion (2) in the slant downward direction at fixed lower height of the holding part of the long Welsh onion (2) and is moved in the horizontal direction together with the long Welsh transportation mechanism (1) (c) slant air jetting mechanisms (12) and (13) which spray compressed air upon the outer periphery of the long Welsh onion (2) being transported after passing the fixed air jetting mechanism (6) while continuously lowering the height of jetting position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an apparatus for continuously and automatically peeling off the outermost skin of long onions.

(Conventional technology) Generally, when shipping harvested green onions to the market,
The aged and inedible epidermis that covers the surface of the white root is peeled off.

In recent years, such peeling work has been replaced by manual labor, which is inefficient and has many environmental health problems.
As shown in Japanese Utility Model Publication No. 776, Japanese Utility Model Publication No. 59-61, Japanese Utility Model Publication No. 5961, etc., mechanization is being carried out by injecting pressurized fluid such as compressed air onto the outer periphery of the green onions.

(Problem to be solved by the invention) However, conventional green onion peeling devices have various problems in terms of worker safety, work efficiency, and completeness of peeling. Currently, no technique or device for continuously stripping the epidermis has been provided, and no practically satisfactory device has been developed.

The present invention has been made in view of these points, and an object of the present invention is to provide a device that completely and automatically continuously peels off the aged skin of long onions without requiring much manual labor.

[Structure of the Invention] (Means for Solving the Problems) The green onion peeling device of the present invention has a green onion conveying mechanism that vertically clamps the leaf portion of the green onion and continuously conveys it in the horizontal direction. and a fixed air injection mechanism that injects compressed air diagonally downward toward the long onion at a certain height below the holding part of the long onion, and moves in the horizontal direction together with the front long onion transport mechanism; After passing through the fixed air injection mechanism, an inclined air injection mechanism that injects compressed air while continuously lowering the height of the injection position is provided on the outer periphery of the long onion being conveyed after passing through the fixed air injection mechanism. . Here, the fixed air injection mechanism consists of an endless transport body installed at a certain height alongside the onion transport mechanism, a plurality of holders attached to this transport body, and a plurality of holders attached to these holders. each attached to
It is preferable to use an injection nozzle having at least four compressed air injection ports and a mechanism for horizontally sliding these nozzles toward and away from the onion conveying mechanism.

In addition, the inclined air injection mechanism is configured such that the fixed air injection mechanism configured in this way is aligned along the outer periphery of the green onions being conveyed.
It is constructed by arranging it diagonally downward.

(Function) In the green onion peeling device of the present invention, the green onion is held at an appropriate position between the leaf tip and the white root by the green onion conveying mechanism, and the leaf tip is held vertically upward. It is continuously conveyed horizontally in a state where the During this transportation, compressed air is injected for a certain period of time from the tip of the leaf toward the white root at a position at a certain height below the holding part by the fixed air injection mechanism. At this time, most of the aged epidermis is peeled off by the air injection pressure, causing it to float or sag. The green onion is then transported further, and compressed air is continuously injected downward from the previous injection position by an inclined air injection mechanism installed at the rear, completely peeling off the outer skin. He is woken up and removed from the fall.

Furthermore, in the present invention, if the inclined air injection mechanism is configured in two stages and the injection speed of the compressed air in the second stage, that is, the injection pressure is made smaller than that in the first stage, damage may occur to the white roots, which have high commercial value. It is possible to completely remove even the fine epidermis without damaging the skin.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is an explanatory diagram showing an outline of one embodiment of the present invention.

In the figure, reference numeral 1 indicates a conveyor that vertically holds the green onions 2 and conveys them horizontally continuously.As shown in FIG. Alternatively, it is composed of a wire 3, a plurality of hanging tools 4 attached to the wire at equal intervals, and a pair of opposing elastic clamping bodies 5 horizontally protruding from the upper surface of the hanging tools 4. There is. In front of the conveyor 1, a fixed air injection mechanism 6 that injects compressed air downward for a certain period of time is disposed at a certain height slightly below the endless onion conveying chain 3.

This fixed air injection mechanism 6 is driven by a motor,
An endless chain 7 that runs parallel to and in the same direction as the green onion conveyor 1, a plurality of holders 8 attached to this at equal intervals, and a plurality of pairs of compressed air injection nozzles 9 arranged opposite to each other. It is configured. Each of the injection nozzles 9 has two compressed air injection ports 10 formed downward. Further, these injection nozzles 9 are hooked onto horizontal guides 11 having chevron-shaped ends, and mounted on the upper surface of the holder 8 so that rollers attached to the injection nozzles 9 move along the horizontal guides 11. It is worn.

Furthermore, these injection nozzles 9 are connected to a compressed air distributor that distributes the compressed air by changing the amount of compressed air supplied depending on the position of the nozzle. Air is configured to be delivered in portions to the injection nozzle. (Not shown) Furthermore, behind the fixed air injection mechanism 6, there is a two-stage inclined air system that injects compressed air while continuously lowering the height of the injection position along the onion conveyor 1. Injection mechanism 12.1
3 are arranged respectively.

Each of these inclined air injection mechanisms 12 and 13 injects compressed air to an endless chain 14 that is inclined downwardly along the outer periphery of the green onions being conveyed, similarly to the fixed air injection mechanism 6. It has a structure in which a plurality of holders 15 to which nozzles are slidably engaged are attached at equal intervals. Then, the flow velocity of compressed air from the compressed air injection port in the second-stage inclined air injection mechanism 13 becomes smaller than the velocity in the first-stage inclined air injection mechanism 12, and the injection pressure becomes smaller. There is.

According to the peeling device of the embodiment configured as described above, first, the long onion 2 which is held between the leaf tip and the white root by the elastic clamping member 5 is vertically erected with the leaf tip upward. Continuously conveyed horizontally in the same state.

Then, the fixed air injection mechanism 6
The skin is stripped as shown below.

That is, as the endless chain 7 moves, the plurality of holders 8 move at the same speed, but at this time, the holders 8 that have moved toward the side facing the onion transport conveyor 1 are filled with compressed air. The end of the spray nozzle 9 is pushed and guided by a horizontal guide 11 that is hooked, and the spray nozzle 9 is placed horizontally along the upper surface of the holder 8 and along the leek transport conveyor 1.
slide in the direction of approaching. Then, the injection nozzles 9 are arranged to face each other with the green onions 2 in between, and the state in which the four compressed air injection ports 10 are arranged downward at equal intervals around the green onions 2 is maintained for a certain period of time, and at this time, the compressed air Compressed air is injected from the air injection port 10 at an appropriate flow rate. The injection nozzle 9 that has finished injection is guided by the inclined part of the horizontal guide 11,
Slide horizontally again and separate from the long onion 2.

In this way, compressed air is blown onto the outer periphery of the long onion 2 from four directions evenly, from the leaf tip to the white root, and the injection pressure peels off the outer skin.

Next, a part of the skin has been peeled off in this way, and compressed air is continuously blown downward onto the outer periphery of the peeled green onion 2 by a two-stage inclined air injection mechanism 12.13. , the aging outer epidermis is completely stripped away.

[Effects of the Invention] As explained above, according to the green onion peeling device of the present invention, only the aged outer skin of the green onion can be completely peeled off without damaging the inner white root, which increases the commercial value. You can get high-quality green onions.

Moreover, since it can be stripped automatically and continuously without the need for manpower, a large amount of material can be efficiently processed.

[Brief explanation of the drawing]

FIG. 1 is a schematic explanatory diagram showing one embodiment of the onion peeling device of the present invention, and FIG. 2 is a top view showing a fixed air injection mechanism in this embodiment. 1......Long onion conveyor 2...
・・・・・・・・・Long onion 5・・・・・・・・・Elastic clamping body 6・・・・・・
... Fixed air injection mechanism 7.14 ... Endless chain 8.15 ... Holder 9 ... Compressed air injection nozzle 0 ...
・・・・・・・・・Compressed air injection port 2.13... Inclined air injection mechanism

Claims (4)

[Claims] (1) A green onion conveying mechanism that vertically clamps green onions and conveys them horizontally continuously; A fixed air injection mechanism that injects compressed air downward and moves horizontally together with the green onion conveyance mechanism; and a fixed air injection mechanism that injects compressed air downward and moves horizontally with the green onion conveyance mechanism; A device for peeling long onions, characterized by being provided with an inclined air injection mechanism that injects compressed air while continuously lowering the pressure. (2) The fixed air injection mechanism attaches a plurality of holders to an endless conveyor disposed at a constant height in line with the green onion conveyor, and each holder has at least four holders. The green onion according to claim 1, wherein the injection nozzle has a compressed air injection port with the injection port facing diagonally downward and is engaged with a slide mechanism that can be inserted into and removed from a predetermined position of the long onion in a horizontal direction. Peeling device. (3) The inclined air injection mechanism includes an endless conveyor body arranged to be inclined downward along the outer periphery of the green onions to be conveyed, a plurality of holders attached to this conveyor body, and a plurality of holders attached to the conveyor body. 2. The apparatus for peeling green onions according to claim 1, comprising an injection nozzle having at least four compressed air injection ports, which is engaged with a slide mechanism that can be inserted into and removed from the holder at a predetermined position of the green onion. (4) Configuring the inclined air injection mechanism in two stages,
4. The apparatus for peeling long onions according to any one of claims 1 to 3, wherein the compressed air injection speed in the second stage inclined air injection mechanism is lower than that in the first stage.