JPS5948066A - Peeling of chestnut - Google Patents

Abstract

PURPOSE:To carry out peeling of chestnut by a series of process from feeding of chestnuts to peeling without requiring a large space, by making a large number of cuts on shells of chestnuts, passing them on a roll equipped with protrusion parts while guiding them. CONSTITUTION:When the chestnuts M are fed from the hopper 5 to the cup 2 opening upward on the top traveling face 3, the chestnuts M are introduced to the bottom traveling face 4. The chestnuts M advancing on the sliding plate 11 are hit against the rotating edges 15 and 15 of blades. As cuts are formed on the shells, and the chestnuts are successively brought into contact with the rotary blades 13, so cuts are made on the whole faces of the shells. The chestnuts M are taken out from the cutting part 10, and successively sent to the peeling part 20. When the chestnuts M having cuts on the shells are passed on the roll 21 while being guided by the cups 2, the cuts are caught by the protrusion parts 22 of the roll 21, the chestnuts are rotated between the inner faces of the cups 2 and the roll 21 to remove the shells, and the chestnuts are peeled.

Description

[Detailed description of the invention] The present invention relates to a method for peeling chestnuts.

When making candied chestnuts or marron glacé, the first step is to remove the skin. This work was done by hand, one by one, using a knife, but since the skin of chestnuts is tough, using a knife to peel the chestnuts was inefficient and caused a lot of fatigue for the workers. It was something.

Therefore, an attempt was made to remove the skin by roasting it over fire, but the starch near the surface of the fruit was turned into alpha by heating, creating problems in the subsequent processing process without losing the properties of raw chestnuts. .

In order to peel the outer skin of chestnuts while they are still raw, you can make a single incision in the outer skin of the chestnut, then blow air through the cut while holding the chestnut with a rubber tube to burst the outer skin and peel it off. It was considered, but it resulted in the fruit flying off as the demon skin exploded, and it has not been put to practical use.

From these viewpoints, the present invention aims to efficiently peel chestnuts while they are still raw.

In order to solve this technical problem, in the present invention, after making a large number of incisions on the entire surface of the chestnut skin, a large number of protrusions are formed on the surface of the chestnut skin while guiding it with a cup that opens downward. The technical means is to peel the skin by passing it over rotating rolls.

According to this technical method, when the cut end of the chestnut skin comes into contact with air, the cut end tends to open, and many such cuts are formed all over the surface of the chestnut skin.

Next, when the chestnut with these many cuts is guided by a cup that opens downward onto a rotating roll, the many protrusions protruding from the surface of the roll or the cuts in the skin of the chestnut will be exposed. I try to grab it and pull it off. At this time, the chestnuts cannot escape because they are inside the cup, and are thrown around while rotating between the inner circumferential wall of the cup and the roll, and the skin is peeled off from each cut.

In this case, depending on the type of chestnut, if the astringent skin and the fruit are in close contact with each other, only the skin will be peeled off, while for chestnuts where the astringent skin and the fruit are not in close contact, for example, chestnuts from China, Korea, or Japan's Shikoku region. For chestnuts grown in Japan, both the astringent skin and the astringent skin can be peeled at the same time.

Therefore, raw chestnuts and chestnuts with astringent skin can be obtained, which is convenient for subsequent processing steps.

Next, an example of the above technical means will be described.

This example will be explained using the apparatus shown in the drawings.

That is, the endlessly connected cup group (1) is caused to circulate in the direction of the arrow by a drive (not shown), and the upper running surface (3)
Now, when chestnuts M are fed from the hopper (5) to the cup (2) that opens upward, the chestnuts (B) are fed into the cup (2) that opens upwards.
The kite board (6) fixed along this line guides the kite to the lower running surface (4) of the cup group (1) without falling.

Below the lower running surface (4), a cut section 00) and a peeling section (20) are arranged.

(6) The notch (10) is composed of a slide plate (11) and a rotary blade 03) that are continuous with the above-mentioned kite plate, and the slide plate (the group is a cup (2) facing downward). The chestnut M moves forward on the slide plate 01) while being guided by the cup (2).

A long hole (121 (1) is provided in Ill so that the cutting edge of the slide plate (rotary blade 03, which will be described later) can face the top of the slide plate 01).
21 is drilled.

The rotary blade α3) has two blades (151 (15)) planted on each of a plurality of bosses (14) fixed to the rotating shirt L-(1,6), Due to the rotation of the shaft α6), the cutting edge (15) 05) rotates and comes intermittently onto the slide plate Ql).

As the chestnut (b) moves forward on the sliding plate (old slide plate), it hits the rotating cutting edge (15) (15) while it moves forward, making a cut in the skin while rotating and dancing inside the cup (2). However, as they encounter the rotating blade side one after another, cuts are formed on the entire surface of the demon skin.

After the chestnut (b) escapes from the notch part 00), it continues to advance to the peeling part (201!).

The peeling part (20) is made of a roll (2υ) having a convex part (2) protruding from the circumferential surface of the cup (2), with its axis located below the running path of the cup (2) and parallel to the running path. p, m
It is rotating at a speed of about .

When a chestnut with a notch in its skin is guided by the cup (2) and passed over the roll Cυ, the chestnut M tries to ride on the roll (20), but the convex part (22) of the roll cuts into the skin. In order to catch the cut end of the chestnut, the skin is rotated and danced between the inner circumferential surface of the cup (2) and the roll (2υ) while trying to be peeled. The skin is peeled off repeatedly.

Note that the number of rotations of the roll (20) will vary depending on the condition of the chestnut skin, that is, the amount of moisture contained in the skin, the type of chestnut, etc.

As described above, when the present invention is carried out using the above-mentioned apparatus, operations from loading chestnuts to peeling the chestnuts can be performed in a series of steps without taking up much space.

In the example of the device above, the cups are designed to move continuously, but the cups are designed to temporarily stop on each rotating blade.
The cup group may be run intermittently. In this case, since the time for the chestnuts to face each other with the rotary blades and rolls is longer, the number of rotary blades can be reduced and the length of the rolls can also be shortened.

Further, the slide plate has a long hole formed at right angles to the direction in which the chestnuts travel, but when the rotary blade is rotated in the direction in which the chestnuts travel, the long hole is formed in accordance with this.

Furthermore, the axis of the peeling roll may be the same as the direction in which the chestnuts travel, and a plurality of peeling rolls may be arranged perpendicular to the direction of travel of the chestnuts.

Although a system is adopted in which the endlessly connected cup group travels up and down, it is also possible to adopt a system in which all the cups face downward and travel in circulation on the same surface.In this case, the bottom of the cup A means for supplying chestnuts to the cup facing downward must be provided, such as a chestnut inlet that can be opened and closed on the side wall.

[Brief explanation of the drawing]

The drawings show examples of equipment used to carry out the present invention.
Figure 1 is a schematic side view of the entire device showing the cup in cross section;
2 is a sectional view taken along the line x-x' in FIG. 1, and FIG. 3 is a sectional view taken along the line Y-Y/ in FIG. 1.

Claims (1)

[Claims] A chestnut skin characterized by making numerous incisions in the skin of a chestnut, and then passing the skin over a rotating roll having many convex portions protruding from its circumference while being guided by a cup with a downward opening. How to peel.