KR-20260065567-A - Coffee bean roasting apparatus

KR20260065567AKR 20260065567 AKR20260065567 AKR 20260065567AKR-20260065567-A

Abstract

The present invention relates to a coffee bean roasting device, comprising: a conveying unit for conveying coffee beans; a roasting chamber installed to allow the coffee beans being conveyed by the conveying unit to pass through, and a laser unit having a laser nozzle that irradiates a flat-top laser beam onto the coffee beans passing through the roasting chamber to roast the coffee beans; and an analysis module that analyzes the roasting state of the coffee beans, the analysis module having a temperature and humidity sensor for sensing the internal temperature and internal humidity of the roasting chamber and a camera for photographing the coffee beans passing through the roasting chamber, wherein the roasting state of the coffee beans is controlled according to the roasting state of the coffee beans analyzed by the analysis module.

Inventors

김인호
배성호

Assignees

주식회사 지스
배성호

Dates

Publication Date: 20260508
Application Date: 20251030
Priority Date: 20241030

Claims (8)

A conveying unit for conveying coffee beans; A laser unit comprising a roasting chamber installed to allow the coffee beans being transported by the above-mentioned transport unit to pass through, and a laser nozzle that roasts the coffee beans by irradiating a flat-top shaped laser beam onto the coffee beans passing through the roasting chamber; and It comprises a temperature and humidity sensor for sensing the internal temperature and internal humidity of the roasting chamber, a camera for photographing the coffee beans passing through the roasting chamber, and an analysis module for analyzing the roasting state of the coffee beans. A coffee bean roasting device in which the roasting pattern of the coffee beans is controlled according to the roasting state of the coffee beans analyzed by the analysis module.
In paragraph 1, A coffee bean roasting device, wherein the analysis module further comprises an acoustic sensor that senses a cracking sound generated when roasting the coffee beans.
In paragraph 1, The above laser nozzles are installed in multiple numbers so that a plurality of laser nozzles can sequentially irradiate laser beams onto the coffee beans passing through the roasting chamber, and A coffee bean roasting device in which the parameters of the laser beams emitted from each of the above laser nozzles are individually adjusted according to the roasting state of the coffee beans.
In paragraph 1, The above analysis module is, A first camera for capturing a video image showing the appearance of the above-mentioned coffee beans; and A coffee bean roasting device comprising a second camera for capturing a thermal image showing a thermal image of the coffee beans.
In paragraph 4, The above analysis module is, A coffee bean roasting device further comprising a state analysis unit that analyzes the roasting state of the coffee beans by detecting at least one of cracks, color, volume, and temperature of the coffee beans based on the above video image and the above thermal image.
In paragraph 1, The above laser unit is, A laser oscillator having a laser diode that generates and oscillates a laser beam having a near-infrared wavelength; and A coffee bean roasting device further comprising an optical fiber that transmits the laser beam emitted from the laser oscillator to the laser nozzle.
In paragraph 6, The above laser nozzle is, A forming optical system that forms a laser beam transmitted by the above optical fiber from a Gaussian shape into the above flat top shape; and A grain drying device further comprising a diffusion optical system that diffuses the laser beam passing through the shaping optical system according to the distribution shape and distribution area of the coffee beans, so that the coffee beans entering the roasting chamber can pass across the laser beam.
In paragraph 1, The above-described transfer unit is a coffee bean roasting device equipped with a conveyor belt that conveys the coffee beans while rotating along an endless track.

Description

Coffee bean roasting apparatus The present invention relates to a coffee bean roasting device. Various coffee bean roasting devices are used to heat coffee beans and roast them in a predetermined manner. Conventional coffee bean roasting devices are configured to heat coffee beans primarily by using direct fire, hot air, near-infrared lamps, etc., as heat sources. These conventional coffee bean roasting devices had problems such as difficulty in heating coffee beans uniformly, low thermal efficiency and low maximum heating temperature of coffee beans, which resulted in long roasting times and caused air pollution and other environmental pollution due to high energy consumption. In addition, conventional coffee bean roasting devices had a problem in that it was difficult to control the roasting pattern of the coffee beans in real time according to the roasting state of the coffee beans, which resulted in a deterioration of the quality of the coffee beans. FIG. 1 is a front view of a coffee bean roasting device according to a preferred embodiment of the present invention. Figure 2 is a diagram showing the schematic structure of the supply unit illustrated in Figure 1, and Figure 3 is a diagram explaining the schematic structure of the laser unit. Figure 4 is a block diagram illustrating the schematic structure of the analysis module. Figure 5 is a diagram illustrating a laser beam having a Gaussian beam profile. Figure 6 is a diagram illustrating a laser beam having a flat-top beam profile. In addition, Figure 7 is a diagram illustrating the process of shaping and diffusing a laser beam by the optical system of a laser nozzle. Figure 8 is a diagram showing the state in which a laser beam is shaped and diffused by the optical system of a laser nozzle. Figure 9 is a diagram showing the schematic structure of a flattening unit. Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the embodiments of the present invention, if it is determined that a detailed description of related known components or functions would hinder understanding of the embodiments of the present invention, such detailed description is omitted. In describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms. Furthermore, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this application. FIG. 1 is a front view of a coffee bean roasting device according to a preferred embodiment of the present invention, FIG. 2 is a diagram showing the schematic structure of a supply unit shown in FIG. 1, and FIG. 3 is a diagram for explaining the schematic structure of a laser unit. Referring to FIG. 1, a coffee bean roasting device (1) according to a preferred embodiment of the present invention is a device for heating and roasting coffee beans (F0) using a laser beam (LB), and may include a controller (not shown), a supply unit (10), a transfer unit (20), a laser unit (30), a blower fan (40), a cross jet (50), an analysis module (60), a vibration unit (70), a storage box (80), etc. First, the controller is a device for controlling various components included in the coffee bean roasting device (1). Since this controller has the same configuration as a conventional controller, a detailed explanation thereof will be omitted. Next, the supply unit (10) is a device for consistently supplying a certain amount of coffee beans (F0) per unit time. As illustrated in FIG. 2, the supply unit (10) may be equipped with a hopper (12) into which coffee beans (F0) are fed, and a supply amount regulator (14) that supplies a certain amount of coffee beans (F0) that have passed through the hopper (12) to a transfer unit (20) to be described later per unit time. The hopper (12) has the same structure as a conventional hopper for supplying materials, so a detailed description thereof will be omitted. The supply volume regulator (14) may have a main frame (14a) and a guide member (14b), etc. The main frame (14a) is provided so that coffee beans (F0) that have passed through the hopper (12) can be temporarily stored inside the