KR20020040462A - Coffee beans roasting machine and control method thereof - Google Patents

Abstract

PURPOSE: An apparatus for roasting coffee beans is provided in which a motor base and a lower case are separated to make it easy to assemble and install a motor, a roasting vessel is absolutely closed to prevent heat loss and discharge skin thereof and the roasting vessel is formed apart from an upper case. This apparatus reduces power consumption by recycling waste heat and the roasting process is controlled automatically or manually and a degree of roasting is optionally selected according to a user's liking. CONSTITUTION: The apparatus comprises: a lower case(10) containing a lower plate(14) and an installation groove(17); a motor base(30) constructed on the upper surface of the lower case; a roasting vessel(50) having an opening and closing means for opening and closing a coffee beans discharge hole(52) and constructed on the upper surface of the motor base; a guide duct constructed on the outer face of the roasting vessel to guide waste heat and skin to a skin receiver; an upper case(70) containing a heating member(31), a hot blast injecting member(33) and a control means for controlling the opening and closing means; and a lid(80).

Description

Coffee Bean Stir-Fryer and its Control Method {COFFEE BEANS ROASTING MACHINE AND CONTROL METHOD THEREOF}

The present invention relates to a coffee bean coffee roaster and a control method thereof, and in particular, it is easy to install coffee beans, recirculate part of the waste heat discharged, thereby significantly reducing power consumption, and separating the roasting container from the upper case. The present invention relates to a coffee bean coffee roaster and a method of controlling the same, wherein the roaster is easily attached by blocking heat transfer, and the roasted coffee beans are easily discharged.

In general, coffee includes coffee beans, ground coffee and intant coffees. Among them, coffee beans have a good taste and aroma. We are buying in. And most families who enjoy coffee beans have a grinding tool. If you bake raw coffee at home and process it with coffee beans, you can enjoy fresh taste and aroma without loss, and it is very economical considering that the price difference between green beans and processed beans is 1: 3 to 1: 5. In addition, even if vacuum-packed coffee beans can not be stored for more than six months from the date of manufacture of the plant, in the case of green beans can be enjoyed the best taste because the beans are stored for a long period of 1-2 years after harvesting well. Therefore, it is not necessary to seal and store green beans, so it is convenient to store green beans, and a domestic roaster that can fry about 200 g at a time of up to 40 cups per day is needed. Domestic coffee roaster is not practical.

In view of such a problem, the applicant has been filed and registered on February 12, 1998, and a patent registration No. 264356 is configured as shown in FIG.

That is, as shown in Figure 1, the motor 2 is installed in the inner lower side of the body 1 by the motor base (2-1), the upper portion of the hot air generating unit 3 consisting of a fan and a hot wire, etc. ) Is installed, the roasting barrel 4 is installed so that the hot air generating unit 3 is located inside, and the hot air ejecting unit 3 covers the hot air generating unit 3 at the bottom side of the roasting tube 4. 9) is installed, the upper portion of the stir barrel (4) is provided with a lid (4-1), the handle (8) is installed on one side of the stir barrel (4), the inside of the handle (8) A shell 5 for recovering the shell separated from the beans is installed, and a waste heat recovery path 6 having a safety net 5-1 is provided at the lower portion of the shell 5 by the guide plate 7. It has a formed structure.

However, since the motor base 2-1 is integrally formed with the body 1, the roaster of such a structure is difficult to manufacture the body 1, the manufacturing cost is increased, and the work of installing the motor 2 is performed. The assembly of the motor 2 to the motor base 2-1 is not only inconvenient, but also the motor 2 is mounted on the motor base 2-1 with a plurality of screws. There was a problem that makes the operation difficult. In addition, since the roasting barrel 4 was configured to be exposed to the outside, an exterior treatment was required, and the heat generated from the hot air generating unit 3 was recovered by the guide plate 7 after passing through the shell 5. Since the waste heat recovered was heated to the inside of the stir trough 4 through the furnace 6, the guide plate 7 integrated with the handle 8 (duct) was heated to hold the handle 8. There was a problem that could burn the user's hand.

On the other hand, the roaster according to the prior art was uncomfortable to remove the shell because the shell 8 is installed inside the handle (8), and the coffee beans discharged because the roasted beans remain inside the stir barrel (4) In order to make the stirrer itself had to be inclined to one side, there was an inconvenience that must be cleaned after the operation of the stator 5-1.

In addition, since the lid 4-1 covering the upper portion of the roasting barrel 4 was provided on the upper portion of the roasting barrel 4 by a plurality of elastic pieces 4-2, the shell separated from the beans There was a problem of polluting out of the fry container 4 and the lid (4-1), the waste heat used for roasting beans is leaked between the lid (4-1) is consumed approximately 1300W of power per 10.83 g W power consumption has occurred.

The present invention has been invented to solve the above problems, the technical problem of the present invention is to recycle the waste heat used to significantly reduce the power consumption, easy to collect beans and shells, motor base and lower case It is easy to assemble and install the motor, and the lid is perfectly sealed to prevent heat loss and leakage of the shell, and the stir bucket is formed separately from the upper case so that the stir fryer is easy to handle. To provide a flag.

The present invention for solving the above technical problem is the bottom plate having a primary air inlet hole is coupled to the bottom, one side is formed with a seating portion is installed, the upper side is an installation groove is open at the top A lower case having a through hole communicating with the seating portion in a front portion of the installation groove; The motor is formed to be installed, the housing having a heat generating member for generating hot air, a blowing fan and a hot air blowing member, and a temperature sensing sensor for sensing the temperature of the hot air are formed in a cylindrical shape so that the shell is installed. A motor base which is formed to guide roasted beans to the bean tray and is formed so that external air and a part of waste heat are introduced therein and is installed on an upper surface of the lower case; The hot air ejecting member is formed into a cylindrical shape with a lower center opening and an upper opening so that the hot air ejecting member is inserted from the lower portion, and a bean discharge hole is formed at one lower portion so that the coffee beans are discharged to the bean guide hole. The shell discharge hole is formed so that the top edge is extended to be curved outwardly to form a seating end is provided in the stir fry is installed on the upper surface of the motor base; A guide duct installed on an outer surface of the stir trough to close the upper part and open the lower part to guide the waste heat and the shell discharged from the shell discharge hole to the shell; An upper case formed in a cylindrical shape having an upper and a lower part opened to cover the motor base and the roasting tube, coupled to the lower case, and a control means installed on a front surface thereof; Provided with a sealing means provides a coffee bean coffee roaster, characterized in that the lid is coupled to the seating end exposed to the upper surface of the upper case to open and close the top of the roasting barrel.

In addition, the present invention comprises the steps of operating the timer when the power is supplied by the power switch, and setting the number 8 of 12 equally lost color to display on the display; Determining whether to input an arbitrary lost color number from the selection button; If there is no input from the selection button, receiving a start signal from the start / cancel button; When the start signal is input, turning on the roast lamp, applying power to the motor, and applying power to the heating member; Counting a time when the temperature of the hot wind reaches a set temperature of 225 ° C-240 ° C when the roast lamp is turned on; Displaying the counted time on the display unit; Determining whether the temperature of the hot air received from the temperature sensor is 225 ° C-240 ° C, which is a set temperature; If it is confirmed that the temperature of the hot air reaches 225 ° C-240 ° C, flashing the display unit for which time is counted, and then displaying the set time as the remaining time by counting down the display unit; Holding for 4 minutes-9 minutes while the temperature of the hot air reaches 225 ° C-240 ° C; Switching to the cooling mode and turning on the cooling lamp after 4 minutes to 9 minutes; When switching to the cooling mode, controlling the heating member to lower the temperature of the hot air to 205 ℃-215 ℃; Determining whether the temperature of the hot air is 205 ° C-215 ° C; When the temperature of the hot air is confirmed to be 205 ° C-215 ° C, controlling the heat generation of the heat generating member at intervals of 15 seconds for 4-5 minutes; After 4-5 minutes, turning off the power applied to the heat generating member and turning off the lost lamp; Determining whether the temperature of the hot air reaches 50 ° C. by detecting the temperature of the hot air with the temperature sensor while the power applied to the heat generating member is cut off; When the temperature of the hot air is 50 ° C., applying power to the solenoid for 6-10 seconds to open the bean discharge hole; Determining whether a signal is input from the discharge button; When a signal is input from the discharge button, applying power to the solenoid for 3-5 seconds to further open the bean discharge hole; If there is no signal input from the discharge button, cutting off the power applied to the motor, turning off the cooling lamp, and blinking the completion lamp; When the power switch is "off" provides a control method of coffee beans roaster, characterized in that the step of completing the roasting process of beans.

1 is a cross-sectional view showing a coffee bean roaster according to the prior art.

Figure 2 is an exploded perspective view showing a coffee bean roaster according to the present invention.

Figure 3 is a perspective view showing the state of the coffee beans roaster shown in FIG.

Figure 4 is a rear view of the combined state of the coffee beans roaster according to the present invention.

Figure 5 is a cross-sectional view showing the operating state of the coffee beans roaster according to the present invention.

6 is a partially enlarged cross-sectional view showing an operating state of the opening and closing means shown in FIG.

7 is a perspective view showing another embodiment of the shell member according to the present invention.

8 is a circuit diagram for explaining the coffee beans roaster according to the present invention.

Figure 9 is a schematic block diagram for explaining the control means according to the present invention.

10A and 10B are flowcharts illustrating a control method according to the present invention.

11 is a process chart for explaining a control process according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: lower case 12: primary air inlet hole

14: base plate 16: seating part

18: motor 20: coffee beans

22: projection 30: motor base

31: heat generating member 32: blowing fan

33: hot air blowing member 34: housing

35: insertion guide 36: coffee beans guide

37: guide protrusion 38: secondary air inlet

39: positioning means 40: shell

50: stir-fry 60: guide duct

70: upper case 79: micom

80: lid

When described in detail with reference to the accompanying drawings a preferred embodiment of the present invention having the above characteristics as follows.

Figure 2 is an exploded perspective view showing a coffee bean roaster according to the present invention, Figure 3 is a perspective view showing the state of the coffee beans roaster shown in Figure 2, Figure 4 is a coffee beans roasting according to the present invention 5 is a cross-sectional view showing the operating state of the coffee beans roaster according to the present invention, Figure 6 is a partially enlarged cross-sectional view showing the operating state of the opening and closing means shown in Figure 2, Figure 7 8 is a perspective view showing another embodiment of the shell member according to the present invention, Figure 8 is a circuit diagram for explaining the coffee beans roaster according to the present invention.

As shown in the accompanying drawings, the roaster according to the present invention is formed such that the lower case 10, the shell 40 and the bean tray 20, in which the motor 18 is accommodated, is installed and the motor 18 is A motor base 30 to be installed, a stir barrel 50 installed at an upper portion of the motor base 30, and a guide provided to one side of the stir barrel 50 to guide the shell to the shell 40. Duct 60, the upper case 70 is installed to cover the stirrup 50 and the guide duct 60, and the lid 80 is provided on the top of the stirrup 50 with a sealing means It consists of.

Each of these components will be described in more detail as follows.

As shown in Figure 2 to 5, the lower case 10 is formed in a hollow to form a lower portion of the roaster, the bottom surface 14 is formed with a plurality of primary air inlet hole 12 on the bottom This is combined, and one side (front) is formed with a stepped seating portion 16. Such a seating portion 16 is formed so that the beanbag 20 is seated and installed. In addition, the upper surface is formed with an installation groove 17, the upper portion of which is opened and the rear surface is opened in a "U" shape, the through-hole 19 in communication with the seating portion 16 in the front bottom of the installation groove 19 ) Is formed.

The beanbag 20 is formed with anti-slip projections 22 on both sides thereof to facilitate the user's mounting.

A ball stopper 16A is installed at the seating portion 16 of the lower case 10, and the ball stopper 16A is drilled with an installation hole 16C having an extended lower portion in the seating portion 16, The steel ball 16B is inserted and installed from the lower part of this installation hole 16C, and the spring 16D for giving elasticity to the said steel ball 16B has a structure provided by the fastener 16E.

In addition, the bottom surface of the bean tray 20 installed in the seating portion 16 is provided with a resilient to the surface of the seating portion 16 is provided with a locking projection (26) that is caught / released on the protruding steel ball (16B) Is formed to protrude. Therefore, when the beanbag 20 is installed in the seating part 16, the beanbag 20 may be stably installed because the steel ball 16B is caught by the turning protrusion 26.

The motor base 30 installed on the upper surface of the lower case 10 is formed such that the motor 18 is installed, and a heat generating member 31, a blowing fan 32, and a hot air blowing member 33 for generating hot air. The housing 34 having a) is formed in a cylindrical shape so as to be internally formed, one side is opened so that the shell 20 is installed, and is formed to guide the roasted beans to the bean tray 20, the outside air And it is formed so that some of the waste heat is introduced to be installed on the upper surface of the lower case 10 as described in more detail as follows.

That is, the motor base 30 is formed in a cylindrical shape of which the upper portion is opened, and a bean guide hole 36 for guiding the beans discharged from the roasting barrel 50 to the bean tray 20 on one side of the outer circumferential surface thereof. It is formed directly down by the bracket 36A, the insertion guide portion 35 for installing the shell 40 is formed on the other side of the outer circumferential surface is opened to one side, for installing the motor 18 on the bottom And positioning means 39.

At this time, the inner side of the motor base 30 or the outer wall of the housing 34 is provided with a temperature sensor 34D for detecting the temperature of the hot air, that is, the temperature of the waste heat discharged to the shell discharge hole 54 and circulated. . Since the temperature sensor 34D may have a difference in temperature detected according to its installation position, it is preferable to install the temperature sensor after inspecting the installation position, and more preferably, the shell discharge hole 54 of the stir barrel 50. ) Installed around the outside to directly detect the waste heat discharged.

At this time, the temperature sensor 34D and the microcomputer 79 may be configured as follows. That is, the temperature of the air (hot air or waste heat) that is heated by the heat generating member 31 and passed through the motor base 30, that is, discharged from the stir tank 50, is returned by the temperature sensing sensor 34D. To be measured, and the microcomputer 79 to be described later will be able to recognize the measured temperature as the temperature inside the roasting barrel (50). For example, when the temperature of the waste heat sensed outside the stir barrel 50 is 150 ° C., the temperature inside the stir barrel 50 is measured and stored, so that the temperature of the waste heat is 150 ° C. during actual use. If it is detected as to recognize the internal temperature of the roasting barrel 50 to the stored temperature corresponding to 150 ℃ to control each component.

In this configuration, since a sensor capable of detecting a higher temperature is higher in price than a sensor capable of detecting a low temperature, the manufacturing cost of the fryer itself is achieved by using a temperature sensor 34D that can sense a low temperature. This is because it is difficult to install, the temperature sensor 34D inside the stir barrel 50.

The hot air blower member 33 is formed such that a plurality of blow holes 33A are directed in one direction so that hot air is blown in one direction and the coffee beans rotate in one direction. The hot air blowing member 33 is to rotate the coffee beans in one direction so that the coffee beans are naturally discharged when the coffee beans discharge hole 54 is opened. That is, the roasted beans are to be discharged by the air ejected by the hot air blowing member 33.

The positioning means 39 is a pair of positioning holes (39A) formed in a diagonal direction to each other in the mounting bracket (39F) coupled to the motor 18, the diagonal so as to cross the positioning hole (39A) A pair of screw holes 39B formed on the upper surface of the mounting bracket 39F, positioning projections 39C protruding from the bottom surface of the motor base 30 so as to be inserted into the respective positioning holes 39A, and each of The fastening hole 39D drilled on the bottom surface of the motor base 30 to coincide with the screw hole 39B, and the mounting bracket 39 penetrates the fastening hole 39D to be coupled to the motor base 30. It consists of a screw 39E fastened to the screw hole 39B.

The shell 40 is installed in the insertion guide portion 35 in the form of a drawer, and the guide protrusions 37 protrude in parallel to each other on the bottom surface of the insertion guide portion 35. At this time, the guide protrusion 37 has a function of guiding the insertion of the shell 40 and the function to facilitate sliding by minimizing the contact surface of the bottom surface of the shell 40 and the bottom surface of the insertion guide 35. To have.

As shown in FIG. 2, the shell 40 has an upper portion that is opened to form an accommodating portion 41, and a rear surface thereof is opened to recover a portion of the waste heat circulated to the stir barrel 50. Is formed, the front of the body 44 is formed with a ventilation opening 43, the shell 44 is installed in the receiving portion 41 of the body 44, the inflow of waste heat passing through the recovery hole 42 is collected It is composed of a sieve net 48 and the handle 45 is installed on the outer surface of the body 44 to be blocked after gradually decreasing due to the structure, the sieve net 48 and the body 44 separated structure Since it is possible to remove the bark collected by separating the sieve (48) from the body 44, a part of the waste heat is discharged through the vent port 43, the other part of the recovery hole 42 Is recycled internally.

At this time, when the shell is accumulated in the strainer 48, the waste heat is not circulated to the recovery hole 42 is discharged through the ventilation port 43, because the accumulated shell closes the recovery hole 42.

On the other hand, another embodiment of the shell 40 according to the present invention is as shown in FIG. That is, the shell 40 as shown in Figure 7 has a vent hole 46A is formed in all four sides, the upper portion is opened, the upper and lower ends are extended in the upper and lower directions, the locking end portion 46B is formed A metal net 47 inserted into the housing 46 and the inside of the housing 46, the upper and lower left and right upper ends of the housing 46 being bent inward to fix each upper end thereof; It consists of a handle member 49 is installed on the upper front of the 46.

The shell 40 according to another embodiment as described above has a structure in which the metal mesh 47 and the enclosure 46 are integrated, and the shell 40 has ventilation holes 46A formed in four directions. The upper part is opened, and the upper and lower ends of the front part extend in the upper and lower directions, respectively, and the enclosure 46 having the locking end portion 46B is formed, and inserted into the interior of the enclosure 46. The upper right side and the rear upper end are bent inward to form a metal net 47 fixed at each upper end, and a handle member 49 installed at the upper front of the housing 46. At this time, the upper and lower front portions of the enclosure 46 are extended upward and downward, respectively, so that the locking end portions 46B are formed, respectively, when the enclosure 46 is inserted into the insertion guide part 35. It is in close contact with the lower case (10,70) has a function to close the insertion guide (35).

As such, the metal mesh 47 collecting the shells and the housing 46 supporting the metal meshes 47 are integrated, so that the collected shells can be more easily removed.

On the other hand, at the bottom of the motor base 30, the secondary air inlet hole 38 so that the outside air flows into the stir tank 50 while cooling the motor 18 installed to be located inside the lower case 10. ) Is formed, and a plurality of spacing holding protrusions 34B are provided on the peripheral bottom of the secondary air inlet hole 38 to protrude. A housing 34 having tertiary air inlets 34A is installed on the upper surface of the gap holding protrusion 34B, and a waste heat inlet path 34C is formed between the bottom and bottom surfaces of the housing 34. will be. The waste heat inflow path 34C is to allow a part of the waste heat discharged to the shell 40 by the guide duct 60 to be recirculated to the stir fry container 50.

The stir fry container 50 is formed in a cylindrical shape having an open bottom center and an open top such that an upper portion of the hot air blower member 33 is inserted from a lower portion, and is installed on an upper surface of the motor base 30. There is a bean discharge hole 52 is formed so that the roasted beans are discharged to the bean guide hole 36 formed in the motor base 30, the shell separated from the bean on the other side is inserted into the insertion guide 35 The shell discharge hole 54 is formed to be collected by the shell 40 to be installed, the upper edge is curved to extend outward has a structure in which the seating end 56 is formed.

At this time, the roasting barrel 50 is provided with an opening and closing means, the opening and closing means is the coffee beans roasting is completed by hot air that is ejected only in one direction from the hot air blowing member 33 when the roasting of the beans is completed It is configured to open and close the bean discharge hole 52 to be.

The opening and closing means is a door 52A, one side of which is hinged to the outer periphery of the bean discharge hole 52, the body is fixed to the support bracket (36A) of the motor base 300 and the end of the operation rod (52B) The solenoid 52C fluidly coupled to the outer surface of the door 52A and the door 52A are pressed into the working rod 52B so that the bean discharge hole 5 @ is always closed. It is composed of an elastic member (52D) is installed.

That is, the door 52A is provided with a locking piece having a locking hole, one end of the operating rod 52B is coupled to the locking hole so as to move freely, and an elastic member installed in the operating rod 52B ( 52D is formed of a coil spring so that one end is in contact with the support bracket 36A and the other end is in contact with the outer surface of the door 52A so that the door 52A always closes the bean discharge hole 52. Has the function. However, the elastic member 52D is not composed only of the coil spring, it is composed of a leaf spring, one end is fixed to the outer circumferential surface of the stir barrel 50 and the other end is installed on the door 52A to give elasticity I can do it.

On the other hand, the engaging piece and the operating rod 52B can be hinged, and the solenoid 52C is controlled and operated by a switch or a control circuit installed in the control means.

The guide duct 60 is installed to surround the outer circumferential surface of the stir barrel 50 and has a function of inducing shell and waste heat discharged from the shell discharge hole 54 to the shell 40, the upper and the outer side. Is closed and the lower and inner sides are open, and both ends and the upper end of the stir barrel 50 is bent to form the installation blades to be installed on the outer circumferential surface.

The lid 80 is installed to open and close the upper portion of the stir barrel 50 with a sealing means, the body formed of a transparent glass material and the annular border member 82 and the edge member installed on the edge of the body It consists of a ring-shaped packing member 88 is fitted to (82).

The frame member 82 is formed of a metal material, one end of which is fixed to the edge of the lid 80, the other end is formed by a bent groove 84 that is bent outwards multiplely bent downward, the frame member ( The end portion of the 82 is gently bent inclined downwardly to form a locking jaw 86, the packing member 88 is formed of a soft silicone or rubber material, the inner surface is to be fitted to the seating groove 84 Is formed, the outer surface is formed to be curved to be in close contact with the seating end 56 of the stir barrel 50, the lower end is a locking end 89 is formed to be caught by the locking step (86).

The sealing member 88 of such a sealing means is not easily separated from the seating groove 84 by the locking end 89 in the fitted state coupled to the frame member 82, the outer surface is the seating groove ( 84 is formed to be curved to be in close contact with each other, thereby keeping the closed state of the gospel tube 50 satisfactorily.

The upper case 70 has a cylindrical shape in which the upper and lower portions are opened to cover the motor base 30, the guide duct 60, the roasting tube 50, and the like except for the seating end 56 of the roasting tube 50. Is formed to be coupled with the lower case (10). Control means is installed on the front of the upper case (70). As such, the upper case 70 is coupled to the lower case 10 so as to cover the guide duct 60 and the roasting tub 50, and thus the stir barrel 50 and the duct 60 heated by waste heat are externally provided. It is not exposed to the furnace, so that the user can safely install the fryer itself.

On the other hand, the control means is a power switch 71 for controlling the power to be supplied, and when the power is supplied by the power switch 71, the preset lost color and time display and LED driver 72A The display unit 72 is provided, the start / minimum button 73 for canceling the roasting process of the coffee beans when pressed once, and the select button 74 for selecting the roast color of the coffee beans are pressed again. ), A roast lamp 75 for indicating the roasting progress of the beans, a cooling lamp 76 for indicating the cooling progress of the beans, a completion lamp 77 for indicating the completion of roasting of the beans, and The motor receives the information from the selection button 74 and the temperature sensor 34D by the discharge button 78 and the discharge button 78 for forcibly discharging the completed beans, and receives the information required for the previously stored roasting 18 and feet Will be controlled by the member 31 and the solenoid (52C) it consists of a microcomputer 79 for controlling the stir process of the beans.

As described above, when the microcomputer 79 is configured to control each electric component, power is supplied by the power switch 71 as shown in FIG. 8 or 9. If there is no input signal from the select button 74 and a start signal is input by the start / cancel button 73, power is supplied to the motor 18 and power is supplied to the heat generating member 31. To turn on the lost lamp (75), operate the timer (71A) to count the time to reach the set temperature of 225 ℃-240 ℃ and display it on the display unit 72, the temperature sensor ( When the temperature of the hot wind detected by 34D) reaches the set temperature of 225 ° C to 240 ° C, the display unit 72 flashes the time counting time, and then the specified time of the selected lost color is counted down on the display unit 72. Displayed in hours, the temperature of the hot air is 225 After 4 minutes-9 minutes have elapsed in the state of reaching the ℃ -240 ℃ control the heating member 31 to maintain the temperature down to 205 ℃ -215 ℃ to maintain for 4-5 minutes, the heating of the heating member 31 The degree is controlled at intervals of 15 seconds, and when 4-5 minutes have elapsed, the power applied to the heat generating member 31 is cut off, the roast lamp 75 is turned off, the cooling lamp 76 is turned on, and the cooling is performed. When the temperature of the hot air detected by the temperature sensor 34D reaches 50 ° C. in the state of being switched to the mode, power is applied to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52. When a signal is input from the discharge button 78, the power is supplied to the solenoid 52C for 3-5 seconds to further open the bean discharge hole 52, and supply power to the solenoid 52C. When the time to apply, the power applied to the motor 18 is cut off, When the group sikimyeo off the cooling lamp 76, and lights up the completed lamp 77, the power switch 71 is "off" it is configured to cut off the power so as to complete the stir process of the beans.

At this time, the microcomputer 79 divides the roast color into 12 equal parts, and in step 1-3, the degree of heat generation of the heat generating member 31 is controlled to "ON-LOW-ON" at intervals of 30 seconds for 4-5 minutes. The beans are roasted in a light color, and 4-6 times to control the heat generation of the heating member 31 to "ON-LOW-ON" at 20 second intervals for 4-5 minutes, so that the beans are roasted in the middle color, 7-9 times to control the heat generation of the heating member 31 to "ON-LOW-ON" at intervals of 15 seconds for 4-5 minutes to be roasted in dark color, 10-12 times 10 for 4-5 minutes By controlling the heat generation degree of the heat generating member 31 at the interval of seconds to "ON-LOW-ON" is to be configured to control the roast more dark.

That is, the user is configured to select the roast color (roasted color) of the beans according to taste, and if the user does not select the roast color, it is automatically set to 8 so that the beans are roasted in dark colors.

On the other hand, the microcomputer 79 is a cancellation signal by the operation of the start / cancel button 73 while the power is applied to the motor 18 and the heat generating member 31 by the operation of the power switch 71. If the input is switched to the cooling mode, the roast lamp 75 is turned off, the cooling lamp 76 is turned on, and the temperature of the detected hot wind is received by receiving the temperature signal detected by the temperature sensor 34D. When the temperature is lower than or equal to 6 ° C., the power is applied to the solenoid 52C for 6 to 10 seconds to open the bean discharge hole 52. When the input temperature is equal to or higher than 50 ° C., the power applied to the heat generating member 31 is turned off. When the temperature of the hot air reaches 50 ° C., the power is applied to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52.

Referring to the operation of the subject innovation configured as described above in detail.

The accompanying drawings will be described with reference to FIGS. 2 to 7 and 8 to 11. At this time, Figure 8 is a circuit diagram for explaining the coffee beans roaster according to the present invention, Figure 9 is a schematic block diagram for explaining the control means according to the present invention, Figure 10a, 10b describes a control method according to the present invention 11 is a flowchart illustrating a control process according to the present invention.

First, the process of combining the respective components will be described. As shown in FIG. 2, the bottom plate 14 is fitted to the bottom of the lower case 10. At this time, it can be coupled using a screw. When the bottom plate 14 is coupled to the lower case 10, the motor 18 is coupled to the bottom surface of the motor base 30 using the positioning means 39.

At this time, look at the coupling process of the motor 18 as follows. In the state in which the mounting bracket 39F is installed on the motor 18, the positioning protrusion 39C formed on the bottom surface of the motor base 30 is inserted into the positioning hole 39A. When the respective positioning projections 39C are inserted into the positioning holes 39A in this manner, the respective threaded holes 39B and the fastening holes 39D are exactly coincident with each other. In this state, the respective screws 39E are fastened to the screw holes 39B by passing through the fastening holes 39D, whereby the motor 18 is easily, accurately and firmly fixed to the bottom surface of the motor base 30. It can be. At this time, the shaft of the motor 18 passes through and protrudes from the bottom of the motor base 30.

When the motor 18 is installed, the housing 34 is fixedly installed to each of the gap holding protrusions 34B by screws. When the housing 34 is installed in the gap maintaining protrusion 34B, a waste heat inflow path 34C is formed between the housing 34 and the bottom surface of the motor base 30.

In this state, as illustrated in FIG. 4, a blowing fan 32 is installed on the shaft of the motor 18 exposed to the third air inlet hole 34A of the housing 34, and the inside of the housing 34 is installed. The heat generating member 31 and the hot air blowing member 33 are provided, and a temperature detecting sensor 34D is provided outside.

When each component is installed in the motor base 30, the motor base 30 is seated in the installation groove 17 of the lower case 10, and the bean guide hole 36 is formed in the through hole. Settle and install in accordance with (19).

Subsequently, after installing the stir trough 50 in which the guide duct 60 is installed on the upper surface of the motor base 30, and connecting and installing the door 52A and the operating rod 52B of the solenoid 52C, The upper case 70 is coupled to the lower case 10 to cover the upper portion of the motor base 30 and the roasting barrel 50.

On the other hand, the seating portion 16 is provided with a bean tray 20, the insertion guide portion 35 is installed by inserting the shell 40 in the drawer type.

At this time, when the ground 20 is inserted into the seating portion 16, the locking protrusion 26 is carried over the steel ball 16B, and eventually the steel ball 16B is the locking protrusion 26 Seated between the) is the beanbag 20 can be installed stably.

In addition, if the shell 40 according to another embodiment is installed in the insertion guide portion 35, the engaging end portion 46B formed on the upper and lower portions of the front of the housing 46 is the lower case 10 It is in close contact with the opening edge formed on the back and the back edge of the upper case 70 to close the inlet of the insertion guide (35).

When each component is installed in this way, as shown in FIG. 5, the inside of the bean discharge hole 52, the bean guide hole 36, and the bean tray 20 communicate with each other, and the shell discharge hole 54 and the shell thereof. The receiving 40 is communicated by the guide duct 60.

Looking at the process of operating the roaster according to the present invention in this state is as follows.

First, when the power switch 71 is turned "on", the microcomputer 79 operates the timer 71A, sets 8 times among the 12 equal lost colors, and displays the number 72 on the display unit 72 (S101). ;

In this case, the user may input an arbitrary roast color number using the selection button 74 so that the beans are roasted to a taste. (S102) That is, the user can select the roasting degree of the beans. However, if no selection is made, the microcomputer 79 sets the preset lost color number (No. 8).

In this state, the user puts an appropriate amount of beans (about 200 g) into the stir fry container 50 and then seals the upper portion of the stir fry container 50 with the lid 80. At this time, since the outer surface of the packing member 88 formed of a soft material is in close contact with the seating end 56 of the stir barrel 50, the upper opening and closing operation of the stir barrel 50 can be made smooth, waste heat or The leakage of the shell to the outside can be prevented.

After the beans are supplied, when the user presses the start / cancel button 73, the microcomputer 79 receives a start signal from the start / cancel button 73. (S103)

Subsequently, when a start signal is input, the microcomputer 79 turns on the roast lamp 75 of the control means, applies power to the motor 18 to operate the blower fan 32 so that air is circulated. In addition, the power is applied to the heat generating member 3 to set the initial temperature under conditions such as ambient temperature, voltage, type of beans, and amount of beans.

As described above, when the roast lamp 75 is turned on and power is applied to the motor 18 and the heat generating member 31 so that the hot air flows into the stir trough 50, the microcomputer 79 generates the temperature of the hot air (waste heat). The time measured in the space to be recovered) reaches the set temperature of 225 ° C to 240 ° C (S105), and the counted time is displayed on the display unit 72. (S106)

In this way, the time that the temperature of the hot air rises to the set temperature is changed by various conditions as the environmental control time.

On the other hand, the microcomputer 79 receives a temperature detection signal from the temperature sensor 34D in the initial environmental control step in which the beans are heated, and determines whether the received temperature is 225 ℃-240 ℃, the set temperature, (S107) When it is confirmed that the temperature of the hot air reaches 225 ° C to 240 ° C, the display unit 72 in which the time is counted blinks, and then the set time is displayed on the display unit 72 as a countdown time remaining. (S108)

Therefore, the user can easily know the time when the roasting of the beans is completed. That is, it is not necessary to check the roasting degree of the beans with the naked eye by opening the lid 80 or through the lid 80.

When the temperature of the hot air reaches 225 ° C.-240 ° C. as described above, the microcomputer 79 maintains the state for 4 minutes-9 minutes (S109);

As such, when the motor 18 is operated and the blower fan 32 is operated and power is applied to the heat generating member 31 and maintained for 4 to 9 minutes while the temperature of the hot air reaches a set temperature, After the outside air passes through the primary air inlet hole 12 and the secondary air inlet hole 38 of the base plate 14 in turn and is heated by the heat generating member 31, the hot air blowing member 33 is blown out. Through the ball 33A is introduced into the stir fry 50. In other words, after the external air flows into the ventilation port 43, the accommodating part 41, and the recovery hole 42 of the shell 40, the 3 of the housing 34 through the waste heat inlet path 34C. It is introduced into the primary air inlet hole (34A) is heated in the process as described above is supplied to the stir fry (50). That is, the external air can be introduced into the interior through the base plate 14 and the shell 40 during the initial operation.

The hot air introduced into the stir fry container 50 heats the beans to separate the shell therefrom. At this time, the door 52A is in a state in which the door 52A pushes the door 52A to the roasting barrel 50 so that the door 52A closes the bean discharge hole 52 by the elasticity of the elastic member 52D.

The shell separated from the beans by the above process is roamed in the inside of the roasting barrel 50 by hot air and is discharged to the shell discharge hole 54 together with the waste heat and the shell discharged to the shell discharge hole 54 is guided. Guided downward by the duct 60 is collected in the strainer 48 of the shell 40.

On the other hand, the air blown out through the blowing hole 33A of the hot air blowing member 33 is rotated in one direction because the blowing hole 33A is formed in one direction. Therefore, the beans inside the stir barrel 50 is roasted by the introduced hot air and flows in one direction.

At this time, a part of the waste heat leaked to the shell 40 by the guide duct 60 is discharged to the outside through the vent hole 43, the other part of the waste heat inlet path 34C through the recovery hole 42 After being introduced into the circulating through the tertiary air inlet hole (34A) to the inside of the stir fry 50 again. Therefore, the heat loss inside the stir barrel 50 is minimized, and thus power consumed by the heat generating member 31 can be saved.

In other words, the roaster according to the present invention is configured to recycle waste heat, so that about 1250W of power is consumed and 6.25W of power is consumed per g, thereby making it possible to achieve significant power savings compared to the roaster of the prior art.

However, the amount of waste heat flowing into the waste heat inflow path 34C is reduced depending on the degree of the shell collected in the sieve 48 of the shell 40. That is, the collected and stacked shells to close the recovery hole 42 to interfere with the recycling of the waste heat, and finally to discharge the waste heat discharged from the roasting tank 50 to the outside through the ventilation port 43.

After 4 minutes to 9 minutes as described above, the microcomputer 79 switches the roasting process to the cooling mode and turns on the cooling lamp 76 (S110). The temperature of the hot air is lowered to 205 ° C.-215 ° C. by controlling (31). (S111) The time for roasting the beans is the first basic time. At this time, the microcomputer 79 controls the heating member 31 to maintain the temperature of the hot air set.

It is determined whether the temperature of the hot air detected by the temperature sensor 34D is 205 ° C.-215 ° C. (S112), and when the temperature of the hot air is 205 ° C.-215 ° C., the degree of heat generation of the heat generating member 31 is 4. -Control at 15 second intervals for 5 minutes. (S113)

That is, the microcomputer 79 is to adjust the degree of heat of the heat generating member 31 so that the beans are roasted in dark color. If the user selects the number of the lost color with the selection button 74, the degree of heat generation of the heat generating member 31 is adjusted for a predetermined time at the selected number.

When 4 to 5 minutes have elapsed by the above process, the microcomputer 79 cuts off the power applied to the heat generating member 31 and turns off the lost lamp 75. (S114) However, the motor Power is continuously applied to the 18 so that the blower fan 32 is operated. When the power applied to the heat generating member 31 is cut off, the temperature of the hot air drops, which is the secondary temperature correction time. At this time, the microcomputer 79 is to control the heating member 31 for a time corresponding to the roasting degree of the coffee beans selected by the user, that is, the number of roast colors.

Subsequently, it is determined whether the temperature of the hot air received from the temperature sensor 34D reaches 50 ° C. while the power applied to the heating member 31 is cut off as described above (S115). In this case, power is applied to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52. (S116) In this step, the air is blown in a state where the power is cut off to the heat generating member 31 during the cooling time. The temperature is lowered because only the fan 32 is operating.

At this time, the coffee beans separated by the above-described process is flowed while rotating in one direction from the lower portion of the stir barrel 50 by hot air is ejected only in one direction by the hot air blowing member (33). In this state, when power is applied to the solenoid 52C as shown in FIG. 5, the operating rod 52B of the solenoid 52C is contracted while overcoming the elasticity of the elastic member 52D, thereby allowing the door ( 52A) is pulled, and thus the bean discharge hole 52 is opened so that the roasted bean is discharged to the bean discharge hole 52 and the bean discharged to the bean discharge hole 52 is the bean guide hole 36 And through the through hole 19 is to be collected in the bean tray 20.

That is, the coffee beans are roasted by rotating the inside of the roasting barrel 50 by hot air ejected in one direction from the ejection hole 33A of the hot air ejecting member 33 by the opening of the door 52A. And through the through hole (19) formed in the bean guide hole 36 and the lower case 10 will be collected to the bean tray 20 installed in the seating portion (16). In other words, when the roasted beans are rotated along the inner wall of the roasting barrel 50 by hot air that is ejected in one direction, the beans are rotated as the bean discharge holes 52 are opened.

In this state, it is determined whether the signal input from the discharge button 78 (S117), when a signal is input from the discharge button 78, by applying additional power for 3-5 seconds to the solenoid (52C) The bean discharge hole 52 is further opened. (S118) This is to discharge all of the beans without roasting remaining inside the roasting barrel (50).

However, if no signal is input from the discharge button 78, the microcomputer 79 cuts off the power applied to the motor 18, turns off the cooling lamp 76, and flashes the completion lamp 77. When (S119) the power switch 71 is "off" to complete the roasting process of the beans. (S120)

On the other hand, the microcomputer 79 is in a state in which power is applied to the motor 18 and the heat generating member 31 by the operation of the power switch 71, that is, the roasting of the beans is in progress (roasting state or If the cancel signal is input by the operation of the start / cancel button 73 in the cooling state (S202), the roast lamp 75 is turned off while switching to the cooling mode, and the cooling lamp 76 is turned on. S203)

As described above, the microcomputer 79 receives the temperature signal detected by the temperature sensor 34D while the cooling lamp 76 is turned on to determine whether the detected hot air temperature is 50 ° C. (S204).

At this time, if the detected temperature of the hot air is 50 ° C. or less, the microcomputer 79 applies power to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52 and then discharge button 74. In step S117, when the discharge signal is inputted from the input, or when the detected temperature is 50 ° C or more, the power applied to the heating member 31 is cut off (S206). 34D) detects the temperature and receives the detected signal to determine whether the detected temperature is 50 ° C., if the detected temperature is 50 ° C. or lower, returning to step S205 of applying power to the solenoid 52C. (S207)

This is to stop the roasting safely when the user's remorse or emergency occurs in the process of roasting the beans so as not to proceed with the roasting of the beans.

When the discharge of the coffee beans is completed by the above process, the working rod 52B is tensioned (the power is cut off and the restraint is released, which causes the working rod 52B to be tensioned by the elasticity of the elastic member 52D). The door 52A again closes the bean discharge hole 52.

Subsequently, the user may take the beans in which the roasting of the coffee beans 20 is completed and the roasting is completed. At this time, since the non-slip protrusion 22 is formed in the bean tray 20, mounting of the user can be made more easily.

On the other hand, when the user attaches the beanbag 20 and pulls it to the front part to separate it from the lower case 10, the steel ball 16B that has been caught on the engaging projection 26 of the beanbag 20 is spring 16D. Overcoming the elasticity of the) is inserted into the installation hole (16C) so that the separation of the bean hopper 20 is made. In other words, the locked state is released.

In addition, the handle 45 of the shell 40 is removed, and the shell 40 is pulled out from the insertion guide 35, and then the sieve 48 is removed to remove the collected shell and its related parts. It will be easy to clean.

The coffee beans roaster according to the present invention can significantly reduce the power consumption by recycling the waste heat used for roasting the beans into the inside of the roasting barrel, easy to collect the beans and shells, the motor base and the lower case is separated Easy to assemble and install the motor, the sealing means of the lid is completely sealed to prevent heat loss as well as the leakage of shells, and the lower case is formed separately from the upper case to cover the lower case Combined with, it is possible not only to cause accidents such as burns caused by a heated stir-fry container, but also to provide an effect of facilitating the handling of the stir fry machine. And, the degree of roasting of the beans is provided to the effect that can be selected arbitrarily to suit the user's taste.

Claims (19)

The base plate 14 having the primary air inlet hole 12 is coupled to the lower portion, and on one side, a seating portion 16 on which the bean tray 20 is installed is formed. A lower case 10 having a through hole 19 communicating with the seating portion 16 at a front bottom of the installation groove 19; The motor 18 is formed to be installed, and includes a heating member 31 for generating hot air, a blowing fan 32, a hot air blowing member 33, and a temperature sensor 34D for detecting the temperature of the hot air. One housing 34 is formed to have a cylindrical shape, the shell 20 is installed to be installed, the roasted beans are formed to guide the beans 20, so that the external air and some waste heat flows in A motor base 30 formed on the upper surface of the lower case 10; The hot air blowing member 33 is formed in a cylindrical shape with a lower end opening and an upper end opening so as to be inserted from the lower side, and a bean discharge hole 52 is formed at one lower side so that the beans are discharged to the bean guide hole 36. A shell discharge hole 54 is formed in the upper portion of the other side so that the shell is discharged to the shell 40, and an upper edge thereof is curved outwardly so that a seating end 56 is formed so that the upper surface of the motor base 30 is formed. A stir barrel 50 installed at and having opening and closing means for opening and closing the bean discharge hole 52 at the time when the roasting of the beans is completed; A guide duct 60 installed on an outer surface of the stir barrel 50 to close the upper part and open the lower part to guide the waste heat and the shell discharged from the shell discharge hole 54 to the shell 40; The upper and lower portions are formed in a cylindrical shape so as to cover the motor base 30 and the roasting barrel 50 and are combined with the lower case 10. The front surface inputs and displays information necessary for roasting the beans. An upper case 70 in which a heat generating member 31, a hot air blowing member 33, and control means for controlling the opening and closing means are installed; A lid 80 having a sealing means coupled to a seating end 56 exposed to an upper surface of the upper case 70 to open and close an upper portion of the stir barrel 50; Coffee coffee roaster, characterized in that consisting of. The coffee bean coffee roaster of claim 1, wherein anti-slip protrusions (22) protrude from both sides of the coffee bean tray (20). According to claim 1, wherein the seating portion 16 is provided with a ball stopper (16A), the bottom surface of the bean tray 20 is formed with a locking projection (26) for engaging / releasing the ball stopper (16A) Coffee beans stirrup characterized in that. According to claim 1, wherein the motor base 30 is formed in a cylindrical shape, the upper portion is opened, a coffee bean guide hole for guiding the coffee beans discharged from the roasting barrel 50 to the coffee beans receiving 20 on one side of the outer peripheral surface ( 36 is formed by the support bracket 36A in a direct downward direction, coffee beans roaster, characterized in that the insertion guide portion 35 for installing the shell 40 is formed on the other side of the outer peripheral surface is opened to one side . 2. The motor base (30) according to claim 1, wherein the motor base (30) comprises positioning means (39) for installing the motor (18) on the bottom surface. The positioning means (39) comprises a pair of positioning holes (39A) formed diagonally to each other in the mounting bracket (39F) coupled to the motor (18); A pair of screw holes 39B formed on an upper surface of the mounting bracket 39F to cross diagonally with the positioning holes 39A; Positioning projections 39C protruding from the bottom of the motor base 30 so as to be inserted into the respective positioning holes 39A; Fastening holes (39D) perforated on the bottom surface of the motor base (30) to coincide with the respective screw holes (39B); And A screw 39E fastened to the screw hole 39B through the fastening hole 39D so that the installation bracket 39 is coupled to the motor base 30; Coffee coffee roaster, characterized in that consisting of. The secondary air inlet hole of claim 1, wherein the motor base 30 cools the motor 18 installed so that external air is positioned inside the lower case 10. Coffee beans roaster, characterized in that the 38 is formed on the bottom. According to claim 1, wherein the motor base 30 has a plurality of gap holding projections (34B) protruding on the bottom, the upper surface of each of the gap holding projections (34B) is provided with a tertiary air inlet hole (34A) The housing 34 is installed between the bottom and the bottom surface of the housing 34 so that a part of the waste heat discharged to the shell 40 by the guide duct 60 is recirculated to the stir trough 50. Coffee beans roaster, characterized in that the waste heat inlet (34C) is formed. According to claim 1, wherein the shell 40 has an upper portion is opened to form an accommodating portion 41, the inner side is opened to recover a portion of the waste heat 42 for circulating back to the stir fry (50) It is formed, the outer surface is the body 44, the ventilation hole 43 is formed; A sieve net (48) installed in the receiving portion (41) of the body (44) so that the inflow of the waste heat passing through the recovery hole (42) is gradually reduced due to the accumulation of shells that are collected; And A handle 45 installed on an outer surface of the body 44; Coffee coffee roaster, characterized in that consisting of. According to claim 1, wherein the shell 40 has a vent hole (46A) is formed in all four sides, the upper portion is opened, the upper and lower ends are extended in the upper and lower directions, the enclosure (46B) is formed ( 46); A metal net 47 inserted into the housing 46 and having upper and lower left and right upper ends of the housing 46 bent inward to fix each upper end thereof; And A handle member 49 installed on the front upper portion of the enclosure 46; Coffee coffee roaster, characterized in that consisting of. According to claim 1, The opening and closing means door 52A is hinged on one side of the outer periphery of the bean discharge hole (52); A solenoid 52C fixedly installed at the motor base 30 and having an end of an operation rod 52B coupled to an outer surface of the door 52A and operated by the control means; And An elastic member (52D) fitted to the working rod (52B) to press the door (52A) from the outside so that the bean discharge hole (52) is always closed; Coffee coffee roaster, characterized in that consisting of. The method of claim 1, wherein the one end is fixed to the magnetic seat of the lid 80, the other end is formed by a bent groove 84 is opened bent outwards is bent multiple times downward, the end of the locking jaw An edge member 82 formed with 86; The inner surface is seated in close contact with the seating groove 84, the outer surface is formed to be seated in close contact with the seating end 56, and a lower end portion is provided with a hooking end 89 to be caught by the locking step 86. Packing member 88; Coffee coffee roaster, characterized in that consisting of. The coffee beans roaster of claim 1, wherein the hot air blower member (33) is formed such that a plurality of blow holes (33A) are directed in one direction so that hot air is discharged in one direction and discharged while the coffee beans rotate in one direction. . 11. The apparatus of claim 1 or 10, wherein the control means comprises: a power switch (71); A timer (71A) which is operated when power is supplied by the power switch (71); When the power is supplied by the power switch 71, the display unit 72 displays the preset lost color, time display and the LED driver 72A; Start / Minimum button 73 to advance the roasting of the beans when pressed once, and to cancel the roasting of the beans when pressed again; A selection button 74 for selecting the roast color of the beans; Roast lamp 75 for indicating the roasting progress of the beans; A cooling lamp 76 for displaying the cooling progress of the beans; Completion lamp 77 for indicating the completion of roasting of beans; Discharge button 78 for forcibly discharging the roasted beans; The motor 18, the heating member 31, and the solenoid 52C receive information from the selection button 74 and the temperature sensor 34D by the supplied power, and receive information necessary for the previously stored roasting. Microcomputer 79 for controlling the roasting process of the beans by controlling the; Coffee coffee roaster, characterized in that consisting of. The method of claim 13, wherein the microcomputer (79) is set to display the number of lost color 8 on the display unit 72 when the power is supplied by the power switch 71, If there is no input signal from the selection button 74, and a start signal is input by the start / cancel button 73, power is supplied to the motor 18, power is applied to the heat generating member 31, and lost. The lamp 75 is turned on, the temperature detection signal is input from the temperature sensor 34D, and the timer 71A is operated to count the time to reach the set temperature of 225 ° C to 240 ° C, and the display unit 72 On the When the temperature sensed by the temperature sensor 34D reaches a set temperature of 225 ° C.-240 ° C., the display unit 72 flashes the time counting time, and then the specified time of the selected lost color is counted on the display unit 72. Down to the remaining time, When 4 minutes-9 minutes have elapsed while the temperature of the hot air reaches 225 ° C.-240 ° C., the heating member 31 is controlled to lower the temperature to 205 ° C.-215 ° C. to maintain 4-5 minutes. (31) controls the degree of heat generation at 15 second intervals, After 4-5 minutes, the power applied to the heat generating member 31 is cut off, the roast lamp 75 is turned off, the cooling lamp 76 is turned on, When the temperature sensed by the temperature sensor 34D reaches 50 ° C. in the state of cooling mode, power is supplied to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52. When a signal is input from the discharge button 78, the bean discharge hole 52 is further opened by applying power to the solenoid 52C for 3-5 seconds, When the time for applying power to the solenoid 52C elapses, the power applied to the motor 18 is cut off, the cooling lamp 76 is turned off, the completion lamp 77 is turned on, and the power switch The coffee beans roaster, characterized in that configured to complete the roasting process of the beans by cutting off the power when 71 is "off". The method of claim 13, wherein the microcomputer 79 separates the lost color into 12 equal parts, 1 to 3 controls the heating rate of the heating member 31 at 30 second intervals for 4-5 minutes, and 4 to 6 controls the heating rate of the heating member 31 at 20 second intervals for 4-5 minutes. And, 7-9 times the heat generation degree of the heat generating member 31 at 15 seconds interval for 4-5 minutes, and 10-12 times the heat generation degree of the heat generating member 31 at 10 second intervals for 4-5 minutes. To control the coffee bean coffee roaster, characterized in that configured to select the roast color. The microcomputer 79 of claim 13, wherein the microcomputer 79 operates the start / cancel button 73 while power is applied to the motor 18 and the heating member 31 by the operation of the power switch 71. When the cancellation signal is input, the lamp is switched to the cooling mode, the lamp 120 is turned off, the lamp 80 is turned on, When the temperature detected by the temperature sensor 34D is received and the detected temperature is 50 ° C. or less, power is supplied to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52. When the input temperature is 50 ° C. or higher, the power applied to the heating member 31 is cut off, and when the temperature reaches 50 ° C., the power is applied to the solenoid 52C for 6-10 seconds to allow the bean discharge hole 52 Coffee roaster, characterized in that configured to open. Operating the timer 71A when the power is supplied by the power switch 71, setting 8 times among the 12 equally lost colors, and displaying the number 8 on the display unit 72 (S101); Determining whether an arbitrary lost color number is input from the selection button 74 (S102); If there is no input from the selection button 74, receiving the start signal to the start / cancel button 73 (S103) When the start signal is input, turning on the lost lamp 75, applying power to the motor 18, and applying power to the heat generating member 31 (S104); Counting the time for which the temperature of the hot wind detected by the temperature sensor 34D reaches a set temperature of 225 ° C to 240 ° C when the roast lamp 75 is turned on (S105); Displaying the counted time on the display unit (S106); Determining whether the temperature of the hot air detected by the temperature sensor 34D is 225 ° C-240 ° C, which is a set temperature (S107); When it is confirmed that the temperature of the hot air has reached 225 ° C-240 ° C, after flashing the display unit 72 in which the time is counted, the set time is displayed on the display unit 72 as the remaining time by counting down (S108). ; Maintaining the temperature of the hot air at 225 ° C-240 ° C for 4 minutes-9 minutes (S109); After 4 minutes-9 minutes have passed to the cooling mode to turn on the cooling lamp 76 (S110); When switching to the cooling mode, controlling the heating member 31 to lower the temperature of the hot air to 205 ℃-215 ℃ (S111); Determining whether the temperature of the hot air is 205 ° C-215 ° C (S112); When the temperature of the hot air is confirmed to be 205 ° C-215 ° C, controlling the heat generation of the heat generating member 31 at intervals of 15 seconds for 4-5 minutes (S113); When 4-5 minutes have passed, turning off the power applied to the heat generating member 31 and turning off the lost lamp 75 (S114); Determining whether the temperature of the hot wind detected by the temperature sensor 34D reaches 50 ° C. in a state where power applied to the heat generating member 31 is cut off (S115); When the temperature of the hot air is 50 ° C., applying power to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52 (S116); Determining whether a signal is input from the discharge button 78 (S117); When the signal is input from the discharge button 78, by applying a power to the solenoid (52C) for 3-5 seconds to further open the bean discharge hole 52 (S118); If there is no signal input from the discharge button 78, cutting off the power applied to the motor 18, turning off the cooling lamp 76, and blinking the completion lamp 77 (S119); When the power switch 71 is “off”, completing a roasting process of beans (S120); Control method of coffee beans roaster, characterized in that consisting of. 18. The coffee machine according to claim 17, further comprising a step (S201) of setting the selected roast color after 3-5 seconds when the roast color number of 1-12 is input from the selection button 74. Control method of coffee roaster. 18. The operation of the start / cancel button (73) according to claim 17, wherein the microcomputer (79) is operated with the power to the motor (18) and the heating member (31) by the operation of the power switch (71). Inputting a cancellation signal (S202); When the cancellation signal is input, switching to the cooling mode to turn off the lost lamp 75 and to turn on the cooling lamp 76 (S203); Determining whether the temperature of the hot air is 50 ° C. at the temperature detected by the temperature sensor 34D while the cooling lamp 76 is turned on (S204); When the detected temperature is 50 ° C. or lower, applying power to the solenoid 52C for 6-10 seconds to open the bean discharge hole 52 and receiving a discharge signal from the discharge button 74 (S117). Returning to step S205; If the detected temperature of the hot wind is 50 ° C. or more, cutting off the power applied to the heating member 31 (S206); Determining whether the detected hot air temperature is 50 ° C. and returning to step S205 of applying power to the solenoid 52C when the temperature is 50 ° C. or less (S207); Control method of coffee beans roaster, characterized in that further comprises.