JP2020043810A - Method for peeling skin of banana and apparatus therefor - Google Patents

Abstract

To provide a method for peeling skin of banana and an apparatus therefor surely biting a peduncle of banana and separating the skin from fruit flesh.SOLUTION: In a method for peeling skin of banana, banana is supplied into a gap G between a pair of rotary rollers 20, 30 rotating in the opposite direction with each other and having smooth parts 21, 31 and rough surface parts 22, 32, and a peduncle of banana is made to bite into a gap G2 between the rough surface parts 22, 32 so as to remove the skin of banana. A banana skin peeling apparatus 100 has the pair of rotary rollers 20, 30 and supply means 10 supplying banana. In the supply means 10, a transportation face 10a transporting banana is arranged at a height H lower than the lowest point of the gap G between the pair of rotary rollers 20, 30, and the rotary rollers 20, 30 have the smooth parts 21, 31 and the rough surface parts 22, 32 roughened than the smooth parts 21, 31.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a banana peeling method and a banana peeling apparatus.

<Description of Background Art-1>
2. Description of the Related Art Conventionally, bananas have their epidermis (peel, pericarp) peeled off and eaten the inner edible part (pulp). When eating bananas at home, people often use their hands to divide the skin into three to four pieces and peel them. On the other hand, in a food processing plant that manufactures banana puree and the like, the peeling operation is automated because a large amount of banana must be peeled.

<Description of Patent Document 1>
BACKGROUND ART As a banana peeling device, for example, a device as disclosed in Patent Document 1 is known. The peeling device described in Patent Literature 1 is such that a banana is sandwiched between a pair of rubber conveying rings, a cut is made in the skin with a cutter blade, and the extruding wheel is pushed out toward the center of the conveying ring, so that the side of the cut is formed. Are locked to the locking projections, and the pulp is pushed out from the cut to separate the skin from the pulp.

<Description of Patent Document 2>
As another banana peeling device, for example, a device as disclosed in Patent Document 2 is known. The peeling device described in Patent Literature 2 puts a banana on a turntable, and cuts a base end (fruit handle) between a pair of rubber endless belts, thereby pulling the skin to the concave side and projecting the skin. The skin on the side is cracked to separate the skin from the flesh.

<Requested technology-1>
However, in the peeling apparatus of Patent Literature 1, it is necessary to select the size of the banana in advance because there is a risk of damaging the pulp to cut the skin with a cutter. Primary processing is also required. Further, since the cutter may be chipped and mixed into the pulp, it is necessary to inspect (metal) foreign substances in the pulp and to take safety measures for workers.

<Requested technology-2>
Moreover, in the peeling apparatus of Patent Document 2, after peeling, the pulp of the banana directly touches the turntable that supplies the banana with the skin, and the bacteria count is increased by constantly flowing water to the equipment for washing. Can cause hygiene problems. Furthermore, since the banana conveyance direction and the rotation direction of the pair of endless belts are substantially orthogonal to each other and only guide the outside, the pair of endless belts may not be able to cut into the basal end of the banana.

Japanese Utility Model Publication No. 57-060711 JP 2006-296249 A

<Issues of background technology>
Therefore, the present invention has been made in view of such circumstances, and an object of the present invention is to provide a banana peeling method and a banana peeling apparatus for reliably eating a banana stalk and separating skin and flesh. Is to provide.

<Contents of Claim 1>
In order to achieve such an object, the present invention is grasped by the following configurations.
(1) The present invention is a method of peeling a banana, wherein the banana is rotated in opposite directions, and is supplied to a gap between a pair of rotating rollers having a smooth portion and a rough surface portion, and the gap between the rough surface portions is provided. The banana stalk is cut into the banana to remove the skin of the banana.

<Contents of Claim 2>
(2) In the present invention, in the configuration of the above (1), the pulp of the banana is dropped on the supply side of the pair of rotating rollers, and the banana peel is discharged on the opposite side opposite to the supply side. .

<Contents of Claim 3>
(3) The present invention relates to a banana peeling apparatus, wherein a banana is rotated in a direction opposite to each other, and a pair of rotating rollers arranged in parallel in a vertical direction and a gap between the pair of rotating rollers. Supply means, and the supply means is arranged at a height lower than a position of a lowermost point of a gap between the pair of rotation rollers, the conveyance surface for conveying the banana, the rotation roller, It has a smooth part and a rough surface part roughened more than the smooth part.

<Contents of Claim 4>
(4) In the present invention, in the configuration of the above (3), a gap formed between the lower rotating roller and the supply means, for dropping the pulp of the banana, and a supply side of the pair of rotating rollers. Discharging means for discharging the banana peel on the side opposite to the above.

<Contents of Claim 5>
(5) In the present invention according to the above (3) or (4), the rotating roller is formed of a metal material, and the rough surface portion is formed with a groove or a ridge along an axial direction.

  Advantageous Effects of Invention According to the present invention, it is possible to provide a banana peeling method and a banana peeling apparatus that reliably dig into a banana stalk and separate skin and pulp.

1A is a front view and FIG. 1B is a side view showing a peeling device according to an embodiment of the present invention. It is a (c) top view showing the peeling device of an embodiment concerning the present invention. It is an enlarged view which shows the clearance gap between a pair of rotating rollers, and a gap part, (a) is a front view, (b) is a side view, (c) is a top view. It is a block diagram showing a control block of a peeling device of an embodiment concerning the present invention. It is the schematic which shows a mode that the peel of a banana is peeled by the peeling method of embodiment which concerns on this invention.

<Description of Embodiment-1>
Hereinafter, a mode for carrying out the present invention (hereinafter, referred to as “embodiment”) will be described in detail with reference to the accompanying drawings. The same reference numerals are given to the same elements throughout the description of the embodiments.

<Description of Embodiment-2>
A peeling apparatus 100 for peeling a skin P of a banana B will be described with reference to FIGS. 1 and 2. FIG. 1 is a (a) front view and (b) a side view showing a peeling apparatus 100 according to an embodiment of the present invention. FIG. 2 is a (c) plan view showing the peeling apparatus 100 according to the embodiment of the present invention.

<Structure of peeling device-1>
The banana B peeling apparatus 100 according to the embodiment includes a supply unit 10, a pair of rotating rollers 20 and 30, an unloading unit 40, and a discharging unit 60.

<Banana name-1>
The banana B handled by the skin peeling apparatus 100 is one in which a plurality of fingers (ovary) attached to one hand (tuft, tier) are separated one by one. Further, the banana B is called a skin P which is a skin, an edible portion F which is a flesh, a neck S (stem, base end) which can be peeled from a hand, and a chip T which is on the opposite side of the neck S. Consists of various parts.

<Configuration of supply means-1>
The supply means 10 supplies the banana B, and is constituted by a modular conveyor or the like in which a plurality of modular chains 11 are combined. Specifically, the supply means 10 is constituted by an endless belt formed of a modular chain 11 wound between a driving sprocket driven by a driving motor 13 (not shown) and a driven sprocket. The supply (conveyance) speed of the supply means 10 may be set to about 0.5 m / min to about 5 m / min.

<Configuration-2 of supply means>
Each modular chain 11 is made of a plastic resin. However, the supply means 10 may be constituted by another slat conveyor or belt conveyor.

<Configuration-3 of supply means>
In addition, the supply unit 10 allows the operator to turn the bent concave side of the banana B toward the downstream side in the transport direction (toward the pair of rotary rollers 20 and 30) and mount the neck S on the downstream side in the transport direction on the transport surface 10a. The placement guide 12 having two recesses 12a for guiding the placement of the banana B is preferably provided upstream in the transport direction to facilitate placement.

<Configuration of rotating roller-1>
Next, the pair of rotating rollers 20 and 30 peel off the skin P of the banana B and separate the edible portion F, and have cylindrical roller surfaces 20a and 30a. Each of the rotating rollers 20 and 30 is formed using a metal material such as a stainless steel pipe having a diameter of about 50 mm to 100 mm.

<Configuration of rotating roller-2>
The roller surfaces 20a, 30a of the rotary rollers 20, 30 have smooth portions 21, 31, and rough surface portions 22, 32, which are rougher than the smooth portions 21, 31, respectively.

<Configuration of rotating roller-3>
The smoothing portions 21 and 31 are subjected to buffing, for example, # 400. On the other hand, in the rough surface portions 22 and 32, concave grooves 22a and 32a (parallel) are formed along the axial direction by pressing or cutting. The depth of the concave grooves 22a and 32a is about 0.1 mm to 0.5 mm. The width of each of the rough surface portions 22 and 32 may be in the range of about 100 mm to about 150 mm.

<Configuration of rotating roller-4>
In the present embodiment, each of the rotating rollers 20 and 30 has two rough surface portions 22 and 32 on the roller surfaces 20a and 30a, but may have one or three or more. Good. In addition, instead of the concave grooves 22a and 32a, a ridge may be formed on each of the rough surface portions 22 and 32.

<Configuration of rotating roller-5>
The pair of rotating rollers 20 and 30 are arranged in parallel in the vertical direction, and are rotationally driven in opposite directions by a common drive motor 23 (not shown) via a transmission mechanism such as a chain or a gear. The rotation speed of the rotation rollers 20 and 30 is preferably set to about 0.2 m / min to 2 m / min. The rotation direction of the rotation roller 20 is a counterclockwise rotation in a side view of FIG.
The rotation direction of the rotation roller 30 is clockwise.

<Structure of unloading means-1>
Subsequently, the carrying-out means 40 carries out the edible portion F of the banana B from which the skin P has been peeled to a downstream process or the like, and is constituted by a belt conveyor. Specifically, the unloading means 40 is configured by an endless belt wound between a driving roller driven to rotate by a driving motor 43 (not shown) and a driven roller. The unloading speed of the unloading means 40 may be set to about 0.5 m / min to about 5 m / min.

<Configuration-2 of unloading means>
The unloading unit 40 is provided such that the transport direction is substantially orthogonal to the supply (transport) direction of the supply unit 10. The unloading means 40 may have guide plates on both sides of the endless belt for preventing the edible portion F that has fallen on the transport surface 40a from dropping off.

<Configuration of discharging means-1>
The discharging means 60 discharges the peeled banana B skin P, and is composed of a discharging chute 61 and a bucket 62.

<Configuration-2 of discharging means>
The discharge chute 61 is provided below the pair of rotating rollers 20 and 30 and is inclined so as to discharge the skin P toward a side opposite to the supply side. The bucket 62 is provided below the tip of the discharge chute 61, and when the skin P is full, the bucket is replaced by another bucket 62 by an operator.

<Structure of peeling device-2>
Here, the supply means 10 and the pair of rotating rollers 20 and 30 will be described in detail with reference to FIG. FIG. 3 is an enlarged view showing the gap G and the gap 50 between the pair of rotating rollers 20 and 30, (a) front view, (b) side view, and (c) plan view.

<Structure of rotating roller-6>
As described above, the pair of rotating rollers 20 and 30 are arranged in the vertical direction, but the gap G is formed between the pair of rotating rollers 20 and 30. The gap G is divided into a gap G1 between the smooth portions 21 and 31 and a gap G2 between the rough portions 22 and 32. The outer diameter of the smooth portions 21 and 31 is slightly smaller than the outer diameter of the rough portions 22 and 32. Since the gap G1 is large and the measurement of the gap G1 is easy, the gap G between the pair of rotating rollers 20, 30 may be the gap G1.

<Configuration of rotating roller-7>
The gap G between the pair of rotating rollers 20 and 30 is provided to be adjustable to be equal to or less than the thickness of the neck S by attaching the rotating roller 30 to a vertically movable frame. It is adjusted not only according to the size, but also according to the thickness and length of the banana B. Specifically, the gap G is adjusted in a range of 3 mm to 7 mm, more preferably, in a range of 4 mm to 6 mm. If the size of the gap G is within a range of the size of the normal banana B, no problem occurs even if the gap G is fixed at a fixed size.

<Structure of supply means-4>
The supply unit 10 is arranged such that the transport surface 10a for transporting the banana B is located at a position lower by the height H than the position of the lowest point of the gap G between the pair of rotating rollers 20 and 30. The supply means 10 is provided so as to be adjustable in the vertical direction with respect to the lower rotating roller 20, and the height H is fixed in a range of 5 mm to 10 mm according to the thickness of the banana B or the like. You.

<Structure of supply means-5>
Further, the supply unit 10 forms a gap 50 between the supply unit 10 and the lower rotating roller 20. The gap 50 is for dropping the edible portion F of the banana B onto the transport surface 40 a of the unloading means 40 below. The gap portion 50 is larger than the thickness of the edible portion F, and is set, for example, in a range from 35 mm to 50 mm.

<Configuration of controller-1>
Finally, the peeling apparatus 100 includes a controller 70 that controls the supply unit 10, the pair of rotating rollers 20, 30 and the unloading unit 40. FIG. 4 is a block diagram showing control blocks of the peeling apparatus 100 according to the embodiment of the present invention.

<Configuration of controller-2>
As shown in FIG. 4, the controller 70 transmits a rotation speed command to the drive motors 13, 23, and 43 so that the conveyance or rotation speed is set on the operation panel 71. . The operation panel 71 is provided with switches for operation, stop, emergency stop, and the like.

<Structure of peeling method-1>
Next, a method of peeling using the peeling apparatus 100 will be described. FIG. 5 is a schematic view showing a state in which the skin P of the banana B is peeled off by the peeling method of the embodiment according to the present invention.

<Structure of peeling method-2>
First, the worker places the banana B on the transport surface 10a of the supply means 10 moving in the transport direction such that the neck S and the bent concave portion face downstream in the transport direction.

<Structure of peeling method-3>
When the banana B is placed on the conveying surface 10a, the banana B is conveyed toward the gap G between the pair of rotating rollers 20 and 30, the neck S reaches the gap G2 between the rough surface portions 22 and 32 first, and the neck S is It is bitten between the pair of rotating rollers 20 and 30. If the rotational speed of the pair of rotating rollers 20 and 30 is too high, the neck S slips even if it comes into contact with the rough surface portions 22 and 32, so that the neck S cannot be guided to the gap G1 and the neck S is pinched. (Penetrate).

<Structure of peeling method-4>
As the neck S is digged in, the skin P of the banana B is pulled toward the bent concave side, and the bent convex side of the banana B begins to crack (tear) (see FIG. 5A).

<Structure of peeling method-5>
Further, by the time the neck S is digged and reaches the discharge side opposite to the supply side, the main body of the banana B is also digged into the gap G1 between the smooth portions 21 and 31, and the cracks (splits) of the skin P are widened. At the same time, the edible portion F is pushed out to the supply side (see FIG. 5B).

<Structure of peeling method-6>
When the tip T of the banana B is cut into the gap G1 between the smooth portions 21 and 31, the edible portion F and the skin P are completely separated, and the skin P can be peeled from the banana B (FIG. c)).

<Structure of peeling method-7>
When the edible portion F and the skin P are separated, the edible portion F slides down the roller surface 20a on the supply side, passes through the gap 50, and falls to the transport surface 40a of the unloading means 40. On the other hand, the skin P slides down from the roller surface 20a on the discharge side to the discharge chute 61 and is thrown into the bucket 62 (discarded).

<Structure of peeling method-8>
The edible portion F that has fallen on the transport surface 40a is transported to the end of the unloading means 40, and is transferred by an operator to an accumulation container or transported to another process by another transport means.

<Structure of peeling method-9>
With such a peeling method, the skin P of the banana B can be peeled without performing a primary processing operation of selecting the size (thickness) of the banana B or cutting off the neck S in advance. . It is preferable that the banana B to be peeled is easy to handle if the maturation degree is called “star” from “green chip” and the skin P is also soft. "Half yellow" or "dapple" which is a state before and after the degree may be mixed. However, the chip T side of the banana B may be cut off by a predetermined length in advance.

<Effect of Embodiment-1>
The effect of the embodiment described above will be described.
In the peeling method of the banana B of the embodiment, the banana B is supplied to the gap G between the pair of rotating rollers 20 and 30 having the smooth portions 21 and 31 and the rough surface portions 22 and 32 while rotating in the opposite directions. The neck P of the banana B is cut into the gap G1 between the rough surface portions 22 and 32 to remove the skin P of the banana B.
The peeling device 100 for the banana B according to the embodiment rotates in the opposite directions to each other, and in the gap G between the pair of rotating rollers 20 and 30 disposed in parallel in the vertical direction, A supply unit 10 for supplying the banana B. The supply unit 10 has a height H at which the transport surface 10a for transporting the banana B is lower than the lowest point of the gap G between the pair of rotating rollers 20 and 30. And the rotating rollers 20 and 30 have smooth portions 21 and 31 and rough surface portions 22 and 32 that are roughened more than the smooth portions 21 and 31.
Thereby, the neck S of the supplied banana B is made to bite into the gap G2 between the rough surface portions 22, 32 of the pair of rotating rollers 20, 30, and the skin P is pulled toward the bent concave side of the banana B. The convex portion side can be split (teared) to peel off the skin P. Therefore, the skin P and the edible portion F can be satisfactorily separated without the whole banana B being caught in the gap G between the pair of rotating rollers 20 and 30.
Further, since the rough surface portions 22 and 32 are not formed on the entire roller surfaces 20a and 30a, a portion other than the neck S of the banana B (for example, the chip T on the opposite side to the neck S) does not bite first. The whole banana B is not caught in the gap G between the pair of rotating rollers 20 and 30, and is not crushed. However, even when the chip T is bitten first, the skin P may peel off without the banana B being crushed.
Furthermore, unlike the case of peeling the skin P of the banana B by hand, since the skin P is not peeled along the fiber direction, so-called streaks do not remain on the edible portion F.

<Effects of Embodiment-2>
In the peeling method of the banana B of the embodiment, the edible portion F of the banana B is dropped on the supply side of the pair of rotating rollers 20 and 30, and the peel P of the banana B is placed on the opposite side opposite to the supply side. To discharge,
The peeling device 100 for the banana B according to the embodiment is formed between the lower rotating roller 20 and the supply means 10 and has a gap portion 50 for dropping the edible portion F of the banana B, and a pair of rotating rollers 20 and 30. And discharging means 60 for discharging the skin P of the banana B on the side opposite to the supply side in the above.
As a result, the edible portion F and the skin P can be separated immediately after peeling the skin P of the banana B, so that the edible portion F can be carried out to a subsequent process, and the skin P is discarded. Can be.

<Effects of Embodiment-3>
In the peeling apparatus 100 of the embodiment, the roller surfaces 20a, 30a are formed of a metal material, and the rough surface portions 22, 32 are formed with grooves 22a, 32a or ridges along the axial direction. Thereby, the frictional force with respect to the banana B is improved in the rough surface portions 22 and 32, the penetration of the neck S is facilitated, and in the smooth portions 21 and 31, the skin P does not generate an unnecessary frictional force. There is no such thing as crushing the part F and crushing it. In addition, since the rotating rollers 20 and 30 do not use a rubber product such as the conveying ring disclosed in Patent Document 1 or the endless belt disclosed in Patent Document 2, the rubber deteriorates and enters the edible portion F. Nothing like that happens.

  As described above, the present invention has been described using the embodiment. However, it is needless to say that the technical scope of the present invention is not limited to the scope described in the above embodiment. It is apparent to those skilled in the art that various changes or improvements can be made to the above embodiment. It is apparent from the description of the appended claims that embodiments with such modifications or improvements can be included in the technical scope of the present invention.

<Description of Modification-1>
In the above-described embodiment, the rough surface portions 22 and 32 are formed by the concave grooves 22a and 32a along the axial direction. However, the rough surface portions 22 and 32 are lattice-like or oblique-line concave grooves 22a and 32a (twill knurls or oblique knurls). You may.

<Explanation of Modification-2>
The skin peeling device 100 of the above embodiment may be provided with a transparent or opaque cover at a location other than a region accessed by an operator as appropriate for hygiene or safety.
In addition, the banana B skin P or the edible portion F adhering to the conveying surface 10a of the supply means 10, the roller surfaces 20a and 30a of the rotating rollers 20 and 30, and the surface of the conveyor belt of the unloading means 40, and adhering substances such as dust are removed. A scraper to be removed may be provided, and a cleaning / sterilizing means may be provided.

Reference Signs List 10 Modular conveyor (supply means), 10a transport surface, 11 modular chain, 12 mounting guide, 13 drive motor 20 rotating roller, 20a roller surface, 21 smooth portion, 22 rough surface portion, 22a concave groove, 23 drive motor 30 rotating roller , 30a roller surface, 31 smooth portion, 32 rough surface portion, 32a concave groove 40 belt conveyor (unloading means), 40a transport surface, 43 drive motor 50 gap portion (fall portion)
Reference Signs List 60 discharge means, 61 discharge chute, 62 bucket 70 controller 100 peeling device B banana, P skin, F edible part (pulp), S neck (fruit pattern), T chip G, G1, G2, gap, H height

Claims (5)

While rotating in the opposite direction to each other, supplying a banana to the gap between a pair of rotating rollers having a smooth portion and a rough surface portion,
Removing the banana skin by letting the banana stalks penetrate into the gap between the rough surface portions,
How to peel a banana. On the supply side of the pair of rotating rollers, drop the pulp of the banana, and on the opposite side opposite to the supply side, discharge the banana peel,
The method for peeling a banana according to claim 1. A pair of rotating rollers that rotate in mutually opposite directions and are arranged in parallel in the vertical direction,
Supply means for supplying a banana to a gap between the pair of rotating rollers,
The supply means is arranged at a height lower than a position of a lowermost point of a gap between the pair of rotating rollers, a conveying surface for conveying the banana,
The rotating roller has a smooth portion, and a rough surface portion roughened more than the smooth portion,
Banana peeler. A gap formed between the lower rotating roller and the supply means, for dropping the pulp of the banana,
Discharging means for discharging the banana peel on the opposite side of the pair of rotating rollers opposite to the supply side,
The banana peeling apparatus according to claim 3. The rotating roller is formed of a metal material,
The rough surface portion is formed with a concave groove or a ridge along the axial direction,
The banana peeling apparatus according to claim 3 or 4.

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