JPH0427359Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a coffee bean product that can continuously and cleanly remove the outer skin of coffee beans, that is, the astringent skin (commonly called silver skin, silver skin, etc.). This relates to an astringent skin removal machine.

[Conventional technology]

The powdered coffee currently in use contains the astringent skin that envelops the coffee bean, so it has an astringent taste, not only is it not a mild taste to be exact, but it is also said to be bad for the stomach. ing.

In order to solve this problem, it is sufficient to remove the astringent skin from the crushed coffee, and a removing device such as that shown in Japanese Utility Model Publication No. 11434/1983 has been proposed as a machine for removing the astringent skin from coffee beans.

[Problems to be solved by the invention] However, the conventional coffee bean astringent skin removal machine drops the crushed coffee, and as the astringent skin falls, the specific gravity of the astringent skin is smaller than that of the coffee, so the floating astringent skin is sucked out. It is something that is discharged.

In this way, conventional methods have adopted the falling method, so when coffee beans are crushed, the coffee powder does not fall and floats, so the coffee powder is unnecessarily sucked out along with the astringent skin. It was hot.

For this reason, it is not possible to crush the coffee beans into fine pieces in order to avoid wastefully discharging this coffee content, and as a result, the separation of the astringent skin is not good, and there is also the disadvantage that the collected crushed coffee must be re-pulled into fine pieces. . (In other words, pure crushed coffee has the disadvantage of a low extraction degree.) The present invention solves this problem by removing only the astringent skin from the crushed coffee, and extracting only the crushed coffee without the astringent skin. It is a technical problem to provide a coffee bean astringent skin removal machine that can provide an extremely high degree of extraction of pure crushed coffee.

[Means for solving problems]

The gist of the present invention will be explained with reference to the accompanying drawings.

A crushing device a is provided below the hopper 1 into which coffee beans are fed, a guide case body 2 slightly inclined to one side is provided below the crushing device a, and a vibration device b is provided to vibrate the guide case body 2. The structure is configured so that the crushed coffee that has fallen onto the guide case body 2 is vibrated and transferred to the outlet section 2a provided on one side of the guide case body 2, and during this vibration transfer, the crushed coffee that floats above the guide case body 2 is This invention relates to a coffee bean astringent skin removing machine characterized in that a suction tube 3 of a suction device c for sucking out the astringent skin of coffee beans is disposed in a guide case body 2.

[Effect]

When coffee beans are put into the hopper 1, they are crushed by a crushing device a.

The crushed coffee falls into the guide case body 2.

Due to the vibration action of the vibration device b, the crushed coffee is vibrated sequentially on the guide case body 2 at a low speed in the direction of the outlet section 2a, sent out from the outlet section 2a, and collected into the collection box 4.

At this time, the suction device c is operating, and the suction pipe 3
When the crushed coffee passes through, the light astringent skin mixed in the crushed coffee floats upward due to vibration, so only the astringent skin is sucked.

Therefore, only pure crushed coffee without astringent skin is taken out from the outlet portion 2a of the guide case body 2.

〔Example〕

The crushing device b has a pair of crushing rolls 5 arranged in upper and lower positions.
The figure shows a case in which the crushing rolls 5 are provided in stages and the facing gap between the crushing rolls 5 is adjusted to enable rough, medium, fine crushing, etc. (6 is the adjustment screw, 9 is the motor,
10 is a drive chain. ) This crushing device a is fixed on a base plate 8 provided above a truck 7.

A vibrating device b is provided below this base plate 8, and a suction device c is provided below this vibrating device b.

Two suction tubes 3 are used in this suction device c, one facing from above near the inlet part 2b of the guide case body 2, and one facing from above near the outlet part 2a. This figure shows a case where astringent skin floating on the guide case body 2 due to vibration is removed by suction.

It is preferable to use a blower as the suction device c, and a case is shown in which the blower is provided with an astringent skin collection box 4 to collect the astringent skin.

[Effect of idea]

Since the present invention is constructed as described above, when coffee beans are put into the hopper, they are crushed by the crushing device, and the crushed coffee is vibrated and transferred laterally on the guide case body by the vibration of the vibrating device, and by this vibration transfer. As the light astringent skin floats to the surface, only the astringent skin is suctioned, so only the astringent skin is suctioned, resulting in a coffee bean astringent skin removal machine that can extract pure crushed coffee with an extremely high degree of extraction.

Therefore, even if the coffee beans are finely crushed by a crushing device, with the conventional falling method, the pure crushed coffee powder will float together with the astringent skin and be sucked up when falling, but this invention uses vibration transfer. Because only the astringent skin of the coffee beans floats up and is sucked due to the vibration during the process, it is possible to prevent the pure crushed coffee from being sucked in together (which is rare), and the astringent skin of the coffee beans, which has an extremely high degree of extraction, is suppressed from being sucked together with the pure crushed coffee. It becomes a removal machine.

By adjusting the vibration force of the vibrating device and the suction force of the suction device according to the type of coffee beans, amount added, degree of crushing, etc., it is possible to reliably remove only the astringent skin and provide mild-tasting crushed coffee. .

(You can also boil and drink this crushed coffee in the usual way, but this machine sucks out the astringent skin, so
It is preferable not to crush the astringent skin until it becomes a powder, so you may grind it again in a coffee mill and drink it.

This is because the thinner the astringent skin is made into a fine powder, the higher the chance that the powdered coffee will be sucked in as well, but the extraction rate of pure crushed coffee will still be improved compared to the conventional dropping method. . )

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view of the device, and FIG. 2 is a side view thereof. a... Crushing device, b... Vibration device, c... Suction device, 1... Hopper, 2... Guide case body,
2a...Exit part, 3...Suction pipe.

Claims (1)

[Scope of utility model registration request] A crushing device is provided below the hopper into which coffee beans are fed, a guide case body slightly inclined to one side is provided below the crusher, and a vibration device is provided to vibrate the guide case body so that coffee beans fall into the guide case body. a suction pipe of a suction device configured to vibrate and transfer the crushed coffee to an outlet provided on one side of the guide case body, and to suck up the astringent skin in the crushed coffee that floats above the guide case body during this vibration transfer; A coffee bean astringent skin removing machine, characterized in that a coffee bean astringent skin removing machine is provided in a guide case body.