Coffee baking machine

Abstract

The coffee baking machine comprises a machine base, a main control circuit board, a voiceprint detection device, a roller device used for containing coffee beans and a first infrared heating device, the machine base comprises a side plate and a bottom plate, and the voiceprint detection device, the roller device and the first infrared heating device are all electrically connected with the main control circuit board. The main control circuit board is arranged on the side plate, the voiceprint detection device is arranged on the side plate and electrically connected with the main control circuit board, and the voiceprint detection device is used for collecting and recognizing burst sound in the coffee bean baking process. And the coffee beans are baked to the baking degree required by a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coffee roaster, in particular to a coffee roaster. BACKGROUND

[0002] Green coffee beans are not any coffee aroma, only after roasting, can smell the rich coffee aroma, coffee beans roasting is the transformation process of the internal composition of coffee beans, the transformation process of the component is a very complex process, good coffee green beans, after proper roasting, it is possible to process good coffee beans, it is also possible to make good coffee to provide a good prerequisite. The roasting degree of coffee beans is one of the important factors affecting the taste and aroma of coffee. Coffee beans from different places have their unique taste and aroma after roasting. Coffee beans from the same place will produce different taste and aroma after different roasting degrees and methods.

[0003] In the prior art, the coffee roaster generally controls and judges the roasting effect of coffee beans by detecting the roasting temperature of coffee beans. There are many varieties of existing coffee beans, and the size difference of different varieties of coffee beans is relatively large. The temperature detection device is used to control whether the coffee beans reach the preset roasting degree. The disadvantage is that when the temperature reaches the preset temperature, some coffee particles are relatively large, which may not reach the preset roasting degree, and some coffee particles are relatively small, which may exceed the preset roasting degree, even causing carbonization of coffee beans, and the roasting degree of coffee beans is very different. SUMMARY

[0004] In order to solve the above-mentioned prior art problems, the utility model provides a coffee roaster, including base, main control circuit board, voiceprint detection device, drum device and first infrared heating device, the base includes side plate and bottom plate, the side plate and the bottom plate form the receiving cavity, the axial direction of the drum device is arranged along the front and back direction, the drum device is detachably arranged in the receiving cavity and can rotate in the receiving cavity, the drum device includes first motor and cylinder body for placing coffee beans, the first motor is connected with the cylinder body, the first motor is arranged on the base, the voiceprint detection device is arranged on the side plate and is electrically connected with the main control circuit board, the drum device is located in the detection range of the voiceprint detection device, the voiceprint detection device is used for collecting and identifying the cracking sound in the roasting process of coffee beans, the first infrared heating device is arranged in the receiving cavity, the first infrared heating device is provided with a first opening, the first opening is arranged on the left side or the right side of the drum device and faces the drum device, the first motor and the first infrared heating device are electrically connected with the main control circuit board.

[0005] As an improvement of the utility model coffee roaster, the side plate includes front side plate and rear side plate, respectively in front and rear of the roller device, the front side plate is equipped with front groove, the rear side plate is equipped with rear groove, the front groove and the rear groove are all upwardly through, the roller device is equipped with cylinder body, two first rotation shafts, one first rotation shaft is equipped in the front end of the cylinder body and is rotationally connected in the front groove, another first rotation shaft is equipped in the rear end of the cylinder body and is rotationally connected in the rear groove.

[0006] As an improvement of the utility model coffee roaster, the roller device is further equipped with first rotation gear, the first rotation gear is sleeved on one first rotation shaft, the first motor is arranged on the base, a first motor gear is arranged on the rotation shaft of the first motor, and the first motor gear is meshed and connected with the first rotation gear.

[0007] As an improvement of the utility model coffee roaster, the first infrared heating device is equipped with first automatic angle adjusting device, the first automatic angle adjusting device is equipped with second motor, two second rotation shafts and second rotation gear, the second motor is arranged on the base, a second motor gear is arranged on the rotation shaft of the second motor, one second rotation shaft is arranged at the rear end of the first infrared heating device and is rotationally connected with the rear side wall of the accommodating cavity, the second rotation gear is sleeved on another second rotation shaft and is meshed and connected with the second motor gear, and the second motor is electrically connected with the main control circuit board.

[0008] As an improvement of the utility model coffee roaster, the first infrared heating device is equipped with manual angle adjusting device, the manual angle adjusting device is equipped with angle knob, shaft sleeve, two third rotation shafts and third rotation gear, the shaft sleeve is arranged on the side wall of the accommodating cavity, the angle knob is arranged outside the accommodating cavity, the angle knob is equipped with connecting shaft, the connecting shaft is rotationally connected with the shaft sleeve, the third rotation gear is sleeved on the connecting shaft, one third rotation shaft is arranged at the rear end of the first infrared heating device and is rotationally connected with the rear side wall of the accommodating cavity, and the third rotation gear sleeve is meshed and connected with another third rotation shaft.

[0009] As an improvement of the utility model coffee roaster, the first infrared heating device is equipped with first fixing frame, first reflecting cover and first infrared heating tube, the two ends of the first fixing frame are rotationally connected with the front side wall and the rear side wall of the accommodating cavity respectively, the first reflecting cover is mounted on the first fixing frame, the first opening is arranged in the first reflecting cover, the first infrared heating tube is arranged in the first reflecting cover and located on the side away from the first opening, and the first infrared heating tube is electrically connected with the main control circuit board.

[0010] As the improvement of the utility model coffee roaster, the second infrared heating device is further arranged in the accommodating cavity, two ends of the second infrared heating device are arranged on the front side wall and the rear side wall of the accommodating cavity respectively, the second infrared heating device is provided with a second opening, the second opening faces the roller device, the second opening and the first opening are located on the left side and the right side of the roller device respectively, and the second infrared heating device is electrically connected with the main control circuit board.

[0011] As the improvement of the utility model coffee roaster, the smoke removing assembly is further arranged, the smoke removing assembly comprises an exhaust fan and a smoke filtering device, a first exhaust port is arranged on the side of the side plate away from the accommodating cavity, a second exhaust port is arranged on the side of the side plate in the accommodating cavity, the exhaust fan is arranged on the side plate and located between the second exhaust port and the first exhaust port, one end of the smoke filtering device is sealingly connected with the second exhaust port, the other end of the smoke filtering device is communicated with the exhaust fan, and the exhaust fan is electrically connected with the main control circuit board.

[0012] As the improvement of the utility model coffee roaster, the AI camera is further arranged, the AI camera is arranged on the machine base, the shooting direction of the AI camera faces the roller device, and the AI camera is electrically connected with the main control circuit board.

[0013] As the improvement of the utility model coffee roaster, the code scanning device and the temperature detecting device are further arranged, the code scanning device is arranged on the machine base and located outside the accommodating cavity, the temperature detecting device is arranged in the accommodating cavity, the main control circuit board is provided with a storage module for recording the historical parameters of coffee bean roasting, the temperature detecting device and the code scanning device are electrically connected with the main control circuit board, and the code scanning device is used for identifying the two-dimensional code or the bar code on the package of coffee beans.

[0014] The utility model discloses a coffee roaster, which has the following beneficial effects: the coffee roaster of the utility model is used for placing coffee beans in the barrel body of the roller device, and then placing the roller device in the accommodating cavity; the main control circuit board controls the first motor to drive the barrel body to rotate through the first motor gear; at the same time, the main control circuit board controls the first infrared heating device to work, so as to roast the coffee beans in the barrel body; the main control circuit board controls the roasting degree of the coffee beans by detecting the cracking sound of the coffee beans through the voiceprint detecting device, so as to ensure that the coffee beans are roasted to the desired roasting degree of the user, and avoid that the coffee beans are not roasted well or are over-roasted. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a working state structure schematic view of the preferred embodiment of the utility model coffee roaster.

[0016] Figure 2 The cover plate opening structure schematic diagram of the preferred embodiment of the coffee roaster.

[0017] Figure 3 For Figure 1 Decomposition schematic diagram.

[0018] Figure 4 For Figure 1 Cross-sectional view along the front and rear directions.

[0019] Figure 5 For Figure 1 Cross-sectional view along the left and right directions.

[0020] Figure 6 For Figure 1 Position of the first infrared heating device.

[0021] Figure 7 For Figure 6 Enlarged schematic diagram of position A.

[0022] Figure 8 For Figure 1 Position cross-sectional view of the automatic angle adjusting device.

[0023] Figure 9 The cross-sectional view of the other embodiment of the coffee roaster.

[0024] Figure 10 The built-in cooking AI large model work flow chart of the preferred embodiment of the coffee roaster.

[0025] Figure 11 The built-in AI virtual human system work flow chart of the preferred embodiment of the coffee roaster. Specific implementation

[0026] Next, the coffee roaster of the present application will be further described in combination with Figures 1 to 11 and other embodiments, and it should be noted that the technical features described below can be combined in any way to form new embodiments without conflict.

[0027] As Figures 1 to 8 , Figure 10 and Figure 11For the preferred embodiment, the utility model discloses coffee roaster, including base 10, main control circuit board 1, voiceprint detection device 80, roller device 70 and first infrared heating device 20, the base 10 includes side plate 109 and bottom plate 113, the side plate 109 and the bottom plate 113 form the receiving cavity 110, the axial direction of roller device 70 is along the front-back direction setting, the roller device 70 is detachably arranged in the receiving cavity 110 and can rotate in the receiving cavity 110, the roller device 70 includes first motor 702 and the cylinder body 701 for placing coffee beans, the first motor 702 is connected with the cylinder body 701, the first motor 702 is arranged on the base 10, the first infrared heating device 20 is arranged in the receiving cavity 110, the first infrared heating device 20 is equipped with first opening 201, the first opening 201 is arranged at the left side or right side of the roller device 70 and is towards the roller device 70, the first motor 702 and the first infrared heating device 20 are electrically connected with the main control circuit board, the voiceprint detection device is arranged on the side plate and is electrically connected with the main control circuit board, the voiceprint detection device is used to gather and identify the burst sound in the roasting process of coffee beans, the roller device 70 is located in the detection range of the voiceprint detection device 80, specifically, the voiceprint detection device 80 includes voiceprint collection element 801, voiceprint processing module 807 and fixing piece 802, the fixing piece 802 is arranged on the side plate 109, the voiceprint collection element 801 is arranged on the fixing piece 802 and is located at one side of the roller device 70, the voiceprint collection element 801 and the voiceprint processing module 807 are electrically connected with the main control circuit board 1, the voiceprint collection element 801 collects the sound in the roasting process, the voiceprint processing module 807 identifies the burst sound of coffee beans from the sound collected by the voiceprint collection element 801 and feeds back to the main control circuit board 1, the voiceprint collection element 801 collects the sound in the roasting process, the voiceprint processing module 807 identifies the burst sound of the first burst or the burst sound of the second burst of coffee beans from the sound collected by the voiceprint collection element 801 and feeds back to the main control circuit board 1, the main control circuit board 1 controls the next state of the first infrared heating device 20, and the user can select the roasting degree of coffee beans according to personal preference, and the roasting degree of coffee beans includes light roast (LIGHTRoast), cinnamon roast, medium roast (MEDIUMRoast), city roast, full-city roast (FULL-CITYRoast), Vienna (Vienna roast), French (French) and Italian (Italian);

[0028] Wherein,

[0029] (1) the roasting degree of the beans taken out from the first crack to the first crack dense stage is basically LIGHTRoast, CINNAMONRoast;

[0030] (2) the roasting degree of the beans taken out from the first crack dense to the first crack end is basically CINNAMONRoast, MEDIUMRoast;

[0031] (3) the roasting degree of the beans taken out from the first crack end to the second crack is basically CITYRoast, FULL-CITYRoast;

[0032] (4) the second crack dense stage (also called espresso roast): Vienna;

[0033] (5) the stage after the second crack end when the oil fully penetrates the surface, French;

[0034] (6) the stage after the second crack end when the color becomes darker and the oil begins to slowly caramelize, Italian;

[0035] When the voiceprint processing module 807 first identifies the cracking sound of the first crack of the coffee beans from the sound collected by the voiceprint collection element 801 and feeds back to the main control circuit board 1, the main control circuit board 1 controls the next state of the first infrared heating device 20, including the following:

[0036] (1) if the user selects the roasting degree as LIGHTRoast, CINNAMONRoast, the main control circuit board controls the next state of the first infrared heating device as stopping the first infrared heating device from heating;

[0037] (2) if the user selects the roasting degree as CINNAMONRoast, MEDIUMRoast, the main control circuit board controls the next state of the first infrared heating device as stopping the first infrared heating device from heating, and then controls the first infrared heating device to stop heating after preheating and continuing to heat the coffee beans for 4-5 minutes;

[0038] (3) if the user selects the roasting degree as CITYRoast, FULL-CITYRoast, the main control circuit board controls the next state of the first infrared heating device as reducing the power of the first infrared heating device and then controls the first infrared heating device to stop heating after heating for 4-5 minutes;

[0039] (4) User selects the roasting degree of two explosions, the main control circuit board controls the next state of the first infrared heating device to be the same power re-heating for 4-5 minutes, of course, another embodiment can be that when the voiceprint processing module 807 detects the second explosion cracking sound of the coffee beans from the sound collected by the voiceprint collection element 801, the main control circuit board 1 controls the first infrared heating device 20 to stop working.

[0040] When the voiceprint processing module 807 detects the second explosion cracking sound of the coffee beans from the sound collected by the voiceprint collection element 801 and feeds back to the main control circuit board 1, the main control circuit board 1 controls the next state of the first infrared heating device 20, including the following:

[0041] (1) User selects Vienna (Vienna roasting), the main control circuit board controls the next state of the first infrared heating device to be the same power re-heating for 2-5 minutes, and then controls the first infrared heating device to stop heating;

[0042] (2) User selects French (French), the main control circuit board controls the next state of the first infrared heating device to be the same power re-heating until the voiceprint processing module 807 does not detect the second explosion cracking sound of the coffee beans from the sound collected by the voiceprint collection element 801, and then controls the first infrared heating device to stop heating;

[0043] (3) User selects Italian (Italian), the main control circuit board controls the next state of the first infrared heating device to be the same power re-heating until the voiceprint processing module 807 does not detect the second explosion cracking sound of the coffee beans from the sound collected by the voiceprint collection element 801, and then controls the first infrared heating device to stop heating.

[0044] In addition, the voiceprint detection device 80 is arranged in the accommodation cavity 110, so that the voiceprint detection device 80 is in a relatively sealed space, reducing the interference of external sound, and the captured sound of the coffee beans roasting is more accurate.

[0045] In the preferred embodiment, the voiceprint detection device 80 of the coffee roaster further comprises heat insulation sound transmission cotton 803 and heat insulation baffle 804, the side plate 109 is provided with a slot hole 805, the slot hole 805 is communicated to the accommodating cavity 110, the fixing part 802 is installed in the slot hole 805, the fixing part 802 is provided with a mounting groove 806 in the axial direction of the slot hole 805, the voiceprint collection element 801 is arranged in the mounting groove 806, the heat insulation sound transmission cotton 803 is arranged at one end of the mounting groove 806 close to the drum device 70, the heat insulation baffle 804 is arranged at one end of the slot hole 805 close to the drum device 70 to reduce the heat transmission of the accommodating cavity to the voiceprint collection element 801, the heat insulation baffle 804 is provided with a hole or the heat insulation baffle is provided with a gap with the side wall of the accommodating cavity to enable the sound generated by the drum device to be transmitted to the voiceprint collection element 801 when the drum device works, and the like. Figure 7 The voiceprint detection device 80 is arranged on the side wall of the accommodating cavity 110, so that the popping sound of the coffee beans in the barrel body 701 can be easily captured.

[0046] As shown in Figure 2 , Figure 3 In the preferred embodiment, the side plate 109 of the coffee roaster comprises a front side plate 1091 and a rear side plate 1092, which are respectively located in front of and behind the drum device 70, the front side plate 1091 is provided with a front groove 105, and the rear side plate 1092 is provided with a rear groove 106, the front groove 105 and the rear groove 106 are both penetrated upward, the drum device 70 is provided with two first rotating shafts 703, one of the first rotating shafts 703 is arranged at the front end of the barrel body 701 and is rotationally connected in the front groove 105, and the other first rotating shaft 703 is arranged at the rear end of the barrel body 701 and is rotationally connected in the rear groove 106, so that the installation and disassembly of the drum device 70 are facilitated.

[0047] As shown in Figure 3 , Figure 5 In the preferred embodiment, the drum device 70 of the coffee roaster further comprises a first rotating gear 704, the first rotating gear 704 is sleeved on one of the first rotating shafts 703, the first motor 702 is arranged on the machine base 10, a first motor gear 705 is arranged on the rotating shaft of the first motor 702, and the first motor gear 705 is in meshing connection with the first rotating gear 704.

[0048] As shown in Figure 6As shown, in a preferred embodiment, the first infrared heating device 20 of the coffee roaster of this utility model is provided with a first automatic angle adjustment device 40. The first automatic angle adjustment device 40 is provided with a second motor 401, two second rotating shafts 402, and a second rotating gear 403. The second motor 401 is mounted on the base 10, and the rotating shaft of the second motor 401 is provided with a second motor gear 404. One of the second rotating shafts 402 is located at the rear end of the first infrared heating device 20 and is rotatably connected to the rear side wall of the receiving cavity 110. The second rotating gear 403 is sleeved on the other second rotating shaft 402 and meshes with the second motor gear 404. The second motor 401 is electrically connected to the main control circuit board 1. The main control circuit board 1 controls the second motor 401 to drive the first infrared heating device 20 to automatically adjust the rotation angle. When the user uses it, during the coffee bean roasting process, the main control circuit board 1 can adjust the angle according to the roasting process. The progress is achieved by controlling the second motor 401 to drive the first infrared heating device 20 to adjust the angle of the first opening 201 toward the cylinder 701. For example, in the initial stage of coffee bean roasting, the main control circuit board 1 controls the first opening 201 to face the cylinder 701, so that the heat emitted by the first infrared heating device 20 is applied to the area of ​​the cylinder 701 through the first opening 201, rapidly increasing the temperature of the area of ​​the cylinder 701 and improving roasting efficiency. When the main control circuit board 1 detects that the temperature of the area of ​​the cylinder 701 has reached the preset temperature, it adjusts the angle of the first opening 201 toward the cylinder 701, so that the angle of the first opening 201 is slowly adjusted back and forth within a range of 60 degrees, so that the heat emitted by the first infrared heating device 20 can evenly heat all parts of the area of ​​the cylinder 701, improving the temperature uniformity of the area of ​​the cylinder 701. In addition, the roaster with voiceprint detection also includes an AI camera 111. During the coffee bean roasting process, the main control circuit board 1 can adjust the angle of the first opening 201 toward the cylinder 701 based on the roasting color of the coffee beans inside the cylinder 701 captured by the AI ​​camera 111. For example, when the AI ​​camera 111 captures that the roasting color of coffee beans in a certain area of ​​the cylinder 701 is lighter than that in other areas, the main control circuit board 1 adjusts the angle of the first opening 201 toward the cylinder 701 so that the first opening 201 faces this area for a slightly longer time, performing temperature compensation for the coffee beans in this area, ultimately making the roasting degree of coffee beans in each area of ​​the cylinder 701 uniform and improving the uniformity of coffee bean roasting.Furthermore, during the coffee bean roasting process, the main control circuit board 1 can determine whether the coffee beans are in a first or second crack state based on the popping sound detected by the soundprint detection device 80 inside the cylinder 701. This allows it to adjust the angle of the first opening 201 towards the cylinder 701, preventing the first opening 201 from directly facing the area containing the coffee beans and avoiding excessive heating that could lead to over-roasting. Specifically, the main control circuit board 1 can determine the roasting status of the coffee beans inside the cylinder 701 based on one or more combinations of the temperature detection device 104, the soundprint detection device 80, and the AI ​​camera 111, thereby adjusting the angle of the first opening 201 towards the cylinder 701.

[0049] like Figure 8 As shown, in a preferred embodiment, the first infrared heating device 20 of the coffee roaster of this utility model is provided with a manual angle adjustment device 50. The manual angle adjustment device 50 includes an angle knob 501, a bushing 505, two third rotating shafts 502, and a third rotating gear 503. The bushing 505 is disposed on the side wall of the receiving cavity 110, the angle knob 501 is disposed on the outside of the receiving cavity 110, the angle knob 501 is provided with a connecting shaft 5011, the connecting shaft 5011 is rotatably connected to the bushing 505, the third rotating gear 503 is sleeved on the connecting shaft 5011, one of the third rotating shafts 502 is disposed at the rear end of the first infrared heating device 20 and rotatably connected to the rear side wall of the receiving cavity 110, and the third rotating gear 503... The sleeve is engaged with another third rotating shaft 502. By manually rotating the angle knob 501 located outside the base 109, the knob gear 504 drives the third rotating gear 503 to rotate, thereby driving the first infrared heating device 20 to rotate, thereby adjusting the angle of the first opening 201 toward the cylinder 701. The main control circuit board 1 can determine the roasting status of the coffee beans in the cylinder 701 according to one or more combinations of the temperature detection device 104, the voiceprint detection device 80 and the AI ​​camera 111. The coffee roaster also includes a display screen 102, which displays the roasting status in real time. The user can manually adjust the angle of the first opening 201 toward the cylinder 701 according to the roasting status.

[0050] like Figure 4 , Figure 6As shown, in the preferred embodiment, the first infrared heating device 20 of the coffee roaster is provided with a first fixing frame 202, a first reflecting cover 203 and a first infrared heating tube 204, both ends of the first fixing frame 202 are rotatably connected to the front side wall and the rear side wall of the accommodating cavity 110, the first reflecting cover 203 is installed on the first fixing frame 202, the first opening 201 is arranged on the first reflecting cover 203, the first infrared heating tube 204 is arranged in the first reflecting cover 203 and located on the side away from the first opening 201, the first infrared heating tube 204 is electrically connected with the main control circuit board 1, the inner side wall of the first reflecting cover 203 is a reflecting surface 205, the light emitted by the first infrared heating tube 204 is converged through the inner side wall of the first reflecting cover 203 and then projected to the barrel body 701 through the first opening 201, and the coffee beans in the barrel body 701 are heated.

[0051] Figure 9 For other embodiments, the accommodating cavity 110 of the coffee roaster is further provided with a second infrared heating device 30, both ends of the second infrared heating device 30 are arranged on the front side wall and the rear side wall of the accommodating cavity 110, the second infrared heating device 30 is provided with a second opening 301, the second opening 301 faces the roller device 70, the second opening 301 and the first opening 201 are located on the left side and the right side of the roller device 70 respectively, and the second infrared heating device 30 is electrically connected with the main control circuit board 1. By arranging the second infrared heating device 30 and arranging the second opening 301 and the first opening 201 on the left side and the right side of the barrel body 701 respectively, the left side and the right side of the barrel body 701 can be heated at the same time, the coffee beans are heated more uniformly, and the heating efficiency is higher. Specifically, the second infrared heating device 30 is provided with a second fixing frame 302, a second reflecting cover 303 and a second infrared heating tube 304, both ends of the second fixing frame 302 are rotatably connected to the front side wall and the rear side wall of the accommodating cavity 110, the second reflecting cover 303 is installed on the second fixing frame 302, the second opening 301 is arranged on one side of the second reflecting cover 303, the second infrared heating tube 304 is electrically connected with the main control circuit board 1, and the inner side wall of the second reflecting cover 303 is a reflecting surface 305. The light emitted by the second infrared heating tube 304 is converged through the inner side wall of the second reflecting cover 303 and then projected to the barrel body 701 through the second opening 301, and the coffee beans in the barrel body 701 are heated.

[0052] As Figure 4As shown, in the preferred embodiment, the coffee roaster of the utility model further has a smoke removal assembly 60, the smoke removal assembly 60 includes an exhaust fan 601 and a smoke filtering device 602, one side of the side plate 109 away from the accommodating cavity 110 is provided with a first exhaust port 604, one side of the side plate 109 located in the accommodating cavity 110 is provided with a second exhaust port 605, the exhaust fan 601 is arranged on the side plate 109 and located between the second exhaust port 605 and the first exhaust port 604, one end of the smoke filtering device 602 is sealingly connected with the second exhaust port 605, the other end of the smoke filtering device 602 is communicated with the exhaust fan 601, the exhaust fan 601 is electrically connected with the main control circuit board 1, the air suction direction 603 of the exhaust fan 601 is towards the accommodating cavity 110, the smoke in the accommodating cavity 110 is sucked by the exhaust fan 601 from the second exhaust port 605 along the air suction direction 603, then enters the smoke filtering device 602, and then is discharged from the first exhaust port 604 to the outside of the accommodating cavity 110, the smoke is treated and purified by the smoke filtering device 602, so that it can be safely discharged to the outside of the accommodating cavity and will not pollute the air, in the embodiment, the smoke filtering device 602 is filter cotton, in other embodiments, the smoke filtering device 602 can use negative ion and plasma filtering method, electrostatic filtering method and other filtering methods to filter and purify the oil smoke generated in the roasting process, or the above filtering methods are implemented in a single or combined manner.

[0053] As Figure 2 As shown, in the preferred embodiment, the coffee roaster of the utility model further includes an AI camera 111, the AI camera 111 is arranged on the machine base 10, the shooting direction of the AI camera 111 is towards the drum device 70, the AI camera 111 is electrically connected with the main control circuit board 1, the main control circuit board 1 can detect the roasting condition and color of the coffee beans in the drum device 70 at any time through the AI camera 111, so as to control the working condition of the first infrared heating device 20, such as the size of power, intermittent or stop heating and the like, in addition, the main control circuit board 1 is provided with a storage module 3 and a wireless communication module 11, the storage module 3 can store the data of the AI camera, wherein the wireless communication module 11 can be one or a combination of a WI-FI communication module, a 4G / 5G communication module, a ZigBee communication module or a Bluetooth communication module and the like, a user 6 can connect the wireless communication module 11 through a user mobile terminal 5 (mobile phone or tablet), and share the information of the roasted coffee beans through the user mobile terminal 5, the information of the roasted coffee beans includes live sharing through the user mobile terminal 5, and the user mobile terminal 5 shares the data of the AI camera in the storage module 3.

[0054] In the preferred embodiment, the coffee roaster further comprises a code scanning device 112 and a temperature detection device 104, the code scanning device 112 is arranged on the base 10 and located outside the accommodating cavity 110, the temperature detection device 104 is arranged in the accommodating cavity 110, the main control circuit board 1 is provided with a storage module 3 for recording the historical parameters of the roasting of coffee beans, the temperature detection device 104 and the code scanning device 112 are electrically connected with the main control circuit board 1, the code scanning device 112 is used for identifying the two-dimensional code or bar code on the package of coffee beans, the two-dimensional code or bar code comprises the variety, origin and roasting parameters of the coffee beans, the main control circuit board 1 calls the corresponding historical roasting parameters from the storage module 3 to control the first infrared heating device 20 to roast according to the variety, origin and roasting parameters of the coffee beans fed back by the code scanning device 112, the main control circuit board 1 controls the first infrared heating device 20 to work through the temperature information fed back by the temperature detection device 104, the roasting parameters comprise a roasting time t1 and a roasting temperature T1, and are fed back to the main control circuit board 1, the main control circuit board 1 calls the corresponding historical roasting parameters from the storage module 3 to control the first infrared heating device 20 to roast according to the roasting parameters fed back by the code scanning device 112, when the temperature detection device 104 detects that the roasting temperature reaches T1, the main control circuit board 1 controls the first infrared heating device 20 to heat for a heating time that reaches the roasting time t1, if the voiceprint processing module 807 does not identify the popping sound of the coffee beans heated to a pop, the main control circuit board 1 controls the first infrared heating device 20 to continue heating to increase the roasting time, the compensation roasting time t0 of the increased roasting time, until the voiceprint processing module 807 identifies the popping sound of the coffee beans heated to a pop and feeds back to the main control circuit board 1, the main control circuit board 1 controls the next state of the first infrared heating device 20, or calls the corresponding historical roasting parameters from the storage module 3 to control the first infrared heating device 20 to roast, when the temperature detection device 104 detects that the roasting temperature reaches T1, the main control circuit board 1 controls the first infrared heating device 20 to heat for a heating time that does not reach the roasting time t1, and the voiceprint processing module 807 identifies the popping sound of the coffee beans heated to a pop and feeds back to the main control circuit board 1, then the main control circuit board 1 controls the next state of the first infrared heating device 20, in addition, if the compensation roasting time t0 exceeds the preset value, it is possible that the coffee beans are unqualified.

[0055] In the preferred embodiment, the coffee roaster further comprises a function button 101, a display screen 102 and a chaff tray 108, the chaff tray 108 is located directly below the drum device 70, the function button 101 and the display screen 102 are arranged on the base 10 and outside the receiving cavity 110, and the function button 101 and the display screen 102 are electrically connected with the main control circuit board 1. The barrel body 701 is provided with a through hole 706, during the roasting process, the skin of the coffee beans will fall off, and the chaff tray 108 is used to receive the chaff falling from the through hole 706, by arranging the function button 101, it is convenient to select the related working mode, by arranging the display screen 102, the working state of the coffee roaster can be observed, and the temperature in the receiving cavity can be displayed. The function button 101 comprises a plurality of roasting degree mode buttons: a LIGHTRoast button, a CINNAMONRoast button, a MEDIUMRoast button, a CITYRoast button, a FULL-CITYRoast button, a Vienna button, a French button and an Italian button, and the specific working mode is as follows:

[0056] (1) The user selects the LIGHTRoast button or the CINNAMONRoast button, and when it is detected that the voiceprint processing module 807 first identifies the popping sound of a pop of coffee beans from the sound collected by the voiceprint collection element 801, the main control circuit board 1 controls the next state of the first infrared heating device 20 to be to stop the first infrared heating device from heating;

[0057] (2) The user selects the CINNAMONRoast button or the MEDIUMRoast button, and when it is detected that the voiceprint processing module 807 first identifies the popping sound of a pop of coffee beans from the sound collected by the voiceprint collection element 801, the main control circuit board 1 controls the next state of the first infrared heating device 20 to be to stop the first infrared heating device from heating, and after heating the coffee beans for 4-5 minutes by preheating, the first infrared heating device is controlled to stop heating;

[0058] (3) User selects the roasting degree as the CITY Roast button or the FULL-CITY Roast button, when the voiceprint processing module 807 first identifies the popping sound of the first popping of coffee beans from the sound collected by the voiceprint collection element 801, the main control circuit board 1 controls the next state of the first infrared heating device 20 as reducing the power of the first infrared heating device and reheating for 4-5 minutes, and then controls the first infrared heating device to stop heating;

[0059] (4) User selects the Vienna button, when the voiceprint processing module 807 identifies the popping sound of the second popping of coffee beans from the sound collected by the voiceprint collection element 801, the main control circuit board 1 controls the next state of the first infrared heating device 20 as the first infrared heating device continues to heat at the same power for 2-5 minutes, and then controls the first infrared heating device to stop heating;

[0060] (5) French button, when the voiceprint processing module 807 identifies the popping sound of the second popping of coffee beans from the sound collected by the voiceprint collection element 801, the main control circuit board 1 controls the next state of the first infrared heating device 20 as the first infrared heating device continues to heat at the same power until the voiceprint processing module 807 does not identify the popping sound of the second popping of coffee beans from the sound collected by the voiceprint collection element 801, and then the first infrared heating device reduces the power and continues to heat for 2-5 minutes, and then controls the first infrared heating device to stop heating;

[0061] (6) Italian button, when the voiceprint processing module 807 identifies the popping sound of the second popping of coffee beans from the sound collected by the voiceprint collection element 801, the main control circuit board 1 controls the next state of the first infrared heating device 20 as the first infrared heating device continues to heat at the same power until the voiceprint processing module 807 does not identify the popping sound of the second popping of coffee beans from the sound collected by the voiceprint collection element 801, and then the first infrared heating device continues to heat at the same power for 4-5 minutes, and then controls the first infrared heating device to stop heating.

[0062] The working process of the coffee roasting machine is briefly described as follows: the user puts the coffee beans into the barrel body 701 of the roller device 70, then puts the roller device 70 into the accommodating cavity 110, the two first rotating shafts 703 of the roller device 70 are respectively rotationally connected with the front groove 105 and the rear groove 106 of the base 10 to fix the roller device 70 in the accommodating cavity 110, the cover plate 103 is arranged above the accommodating cavity, the coffee roasting machine is started through the function button 101, the main circuit board 1 controls the first motor 702 to drive the first rotating gear 704 to rotate the barrel body 701 through the first motor gear 705, the main circuit board 1 controls the first infrared heating device 20 to work, the main circuit board 1 controls the second motor 401 to drive the second rotating gear 403 to rotate the first infrared heating device 20 to the first opening 201 facing the barrel body 701 through the second motor gear 404, or the user manually adjusts, the knob gear 504 drives the third rotating gear 503 to rotate through the manual rotation of the angle knob 501 located outside the seat body 109, so that the first infrared heating device 20 is rotated to the first opening 201 facing the barrel body 701, the main circuit board 1 controls the first infrared heating tube 204 to heat, and then the barrel body 701 is roasted, the main circuit board controls the roasting degree of the coffee beans by detecting the cracking sound of the coffee beans through the voiceprint detection device, so that the coffee beans can be roasted to the roasting degree required by the user, the barrel body 701 is provided with a through hole 706, during the roasting process, the coffee bean skin will fall off, and the chip tray 108 is used for receiving the coffee bean skin falling from the through hole 706.

[0063] In addition, in other embodiments, the main control circuit board can control the first infrared heating device and the second infrared heating device to roast the barrel body at the same time, specifically, the coffee roasting machine is started through the function button 101, the main circuit board 1 controls the first motor 702 to drive the first rotating gear 704 to rotate the barrel body 701 through the first motor gear 705, the main circuit board 1 controls the first infrared heating device 20 and the first infrared heating device 30 to work at the same time, the first opening 201 and the second opening 301 are respectively on the left side and the right side of the barrel body and face the barrel body 701 at the same time, the main circuit board 1 controls the first infrared heating tube 204 and the second infrared heating tube to heat, and then the barrel body 701 is roasted.

[0064] The application principle of the voiceprint coffee roasting machine is as follows: 1. First, a voiceprint library is established, including the following steps:

[0065] (1) Voice Activity Detection (VAD), to detect silence when the voiceprint detection coffee roaster is not working;

[0066] (2) Voice Quality Detection, to detect the sound of the coffee roasting process through roasting experiments on different kinds of coffee beans, including: signal-to-noise ratio, clipping size and volume size;

[0067] (3) Effective Audio Extraction, to extract the sound of the coffee bean popping;

[0068] (4) Voiceprint Feature Extraction, to extract the voiceprint of the coffee bean popping sound and form a voiceprint library.

[0069] 2. Application of Voiceprint Detection Stage: When the voiceprint detection coffee roaster is working, the voiceprint acquisition element acquires the sound during the roasting process, and the voiceprint processing module identifies the corresponding coffee bean popping sound from the sound acquired by the voiceprint acquisition element through comparison with the voiceprint library.

[0070] In the preferred embodiment, the reference Figure 10 , Figure 11The utility model discloses coffee roaster still is equipped with man -machine interaction module 2, man -machine interaction module 2 includes voice interaction unit 21 and touch screen 22, voice interaction unit 21 and touch screen 22 all with the main control circuit board 1 electric connection, and the main control circuit board 1 is equipped with storage module 3 and wireless communication module 11, and storage module 3 is equipped with built -in cooking AI big model 31 or built -in AI virtual person system 32. Among them, wireless communication module 11 can be one or combination of WI-FI communication module, 4G / 5G communication module, ZigBee communication module or bluetooth communication module etc., and user 6 can be connected with wireless communication module 11 through user mobile terminal 5 (mobile phone or tablet), and can view the roasting method suitable for various coffee beans on the APP of user mobile terminal 5, and set up the roasting parameter such as suitable working power, working time, working temperature etc. parameter setting, and user 6 can carry out information exchange through voice and coffee roaster's voice interaction unit 21, and user 6 can also input video, text, picture or 3D model through touch screen 22 and carry out information exchange with coffee roaster, and user 6 inputs the kind of coffee bean and its roasting parameter through voice, video, text, picture or 3D model format on man -machine interaction module 2, and touch screen 22 can feedback the working state of coffee roaster or the instruction that user 6 needs to cooperate and operate, also can feedback the working state of coffee roaster or the instruction that user 6 needs to cooperate and operate to user 6's user mobile terminal 5 or touch screen 22 through wireless communication module 11. Storage module 3 is equipped with built -in cooking AI big model 31 and built -in AI virtual person system 32, and user 6 inputs the information about coffee bean roasting demand through voice, video, text, picture or 3D model format through man -machine interaction module 2 or user mobile terminal 5, and this coffee bean roasting demand information is transmitted to built -in cooking AI big model 31 in storage module 3 through main control circuit board 1, and built -in cooking AI big model 31 analyzes and trains the cooking demand information to generate new roasting method, and sends this new roasting method to touch screen 22 of man -machine interaction module 2 or user mobile terminal 5, when user 6 confirms new roasting method through touch screen 22 or user mobile terminal 5 and roasts, and the main control circuit board 1 controls coffee roaster to use new roasting method to the coffee bean of corresponding kind, and sends the cooking operation instruction that needs user 6 to cooperate to user 6 through touch screen 22 or user mobile terminal 5 in the cooking process.In addition, the user 6 inputs the coffee bean roasting requirement information and the virtual person requirement information in voice, video, text, picture or 3D model format through the man-machine interaction module 2 or the user mobile terminal 5, the roasting requirement information is transmitted to the built-in AI virtual person system 32 in the storage module 3 through the main control circuit board 1, the built-in AI virtual person system 32 analyzes the text information related to the virtual person requirement information and the roasting requirement information to generate a specific AI virtual person, the user 6 can interact with the specific AI virtual person on the touch screen 22 or the user mobile terminal 5, and the specific AI virtual person can be a virtual relative, a friend, a star or a chef, etc.

[0071] The coffee roaster has the following beneficial effects: the coffee roaster is used for placing coffee beans into the barrel body of the roller device, and then placing the roller device into the accommodating cavity; the main circuit board controls the first motor to drive the barrel body to rotate through the first motor gear, and controls the first infrared heating device to work at the same time, so that the coffee beans in the barrel body are roasted; the main control circuit board controls the roasting degree of the coffee beans by detecting the cracking sound of the coffee beans through the voiceprint detection device, so that the coffee beans can be roasted to the required roasting degree, and the coffee beans can be prevented from being not roasted enough or over-roasted.

[0072] The above has made a detailed description of the coffee roaster, and the above is only a preferred embodiment of the coffee roaster, and cannot limit the scope of the coffee roaster, that is, any equivalent changes and modifications made within the scope of the application should still fall within the scope of the coffee roaster.

Claims

1. A coffee roaster, characterized in that, The application relates to a coffee roasting machine, which comprises a base, a main control circuit board, a voiceprint detection device, a roller device and a first infrared heating device, the base comprises side plates and a bottom plate, the side plates and the bottom plate form a containing cavity, the axial direction of the roller device is arranged along the front-rear direction, the roller device is detachably arranged in the containing cavity and can rotate in the containing cavity, the roller device comprises a first motor and a cylinder body for placing coffee beans, the first motor is connected with the cylinder body, the first motor is arranged on the base, the voiceprint detection device is arranged on the side plate and electrically connected with the main control circuit board, the roller device is located in the detection range of the voiceprint detection device, the voiceprint detection device is used for collecting and identifying the cracking sound in the coffee bean roasting process, the first infrared heating device is arranged in the containing cavity, the first infrared heating device is provided with a first opening, the first opening is arranged on the left side or the right side of the roller device and faces the roller device, and the first motor and the first infrared heating device are electrically connected with the main control circuit board.

2. The coffee roaster of claim 1, wherein: The side plates comprise front side plates and rear side plates and are located in front of and behind the roller device respectively, the front side plates are provided with front grooves, the rear side plates are provided with rear grooves, the front grooves and the rear grooves all penetrate upwards, the roller device is provided with two first rotating shafts, one first rotating shaft is arranged at the front end of the cylinder body and is rotationally connected in the front groove, and the other first rotating shaft is arranged at the rear end of the cylinder body and is rotationally connected in the rear groove.

3. The coffee roaster of claim 2, wherein: The roller device is also provided with a first rotating gear, the first rotating gear is sleeved on one first rotating shaft, the first motor is arranged on the base, a first motor gear is arranged on the rotating shaft of the first motor, and the first motor gear is meshedly connected with the first rotating gear.

4. The coffee roaster of claim 1, wherein: The first infrared heating device is provided with a first automatic angle adjusting device, the first automatic angle adjusting device is provided with a second motor, two second rotating shafts and a second rotating gear, the second motor is arranged on the base, a second motor gear is arranged on the rotating shaft of the second motor, one second rotating shaft is arranged at the rear end of the first infrared heating device and is rotationally connected with the rear side wall of the containing cavity, the second rotating gear is sleeved on the other second rotating shaft and is meshedly connected with the second motor gear, and the second motor is electrically connected with the main control circuit board.

5. The coffee roaster of claim 1, wherein: The first infrared heating device is provided with a manual angle adjusting device, the manual angle adjusting device is provided with an angle knob, a shaft sleeve, two third rotating shafts and a third rotating gear, the shaft sleeve is arranged on the side wall of the containing cavity, the angle knob is arranged outside the containing cavity, the angle knob is provided with a connecting shaft, the connecting shaft is rotationally connected with the shaft sleeve, the third rotating gear is sleeved on the connecting shaft, one third rotating shaft is arranged at the rear end of the first infrared heating device and is rotationally connected with the rear side wall of the containing cavity, and the third rotating gear sleeve is meshedly connected with the other third rotating shaft.

6. The coffee roaster of claim 1, wherein: The first infrared heating device is provided with a first fixing frame, a first reflecting cover and a first infrared heating tube. The first fixing frame is rotatably connected to the front side wall and the rear side wall of the accommodating cavity at both ends. The first reflecting cover is installed on the first fixing frame. The first opening is provided on the first reflecting cover. The first infrared heating tube is provided in the first reflecting cover and located on the side away from the first opening. The first infrared heating tube is electrically connected with the main control circuit board.

7. The coffee roaster of claim 1, wherein: The accommodating cavity is also provided with a second infrared heating device. The two ends of the second infrared heating device are provided on the front side wall and the rear side wall of the accommodating cavity. The second infrared heating device is provided with a second opening. The second opening is directed to the drum device. The second opening and the first opening are respectively located on the left side and the right side of the drum device. The second infrared heating device is electrically connected with the main control circuit board.

8. The coffee roaster of claim 1, wherein: An exhaust assembly is also provided. The exhaust assembly includes an exhaust fan and a smoke filtering device. The side plate provided on the side away from the accommodating cavity is provided with a first exhaust port. The side plate provided on one side of the accommodating cavity is provided with a second exhaust port. The exhaust fan is provided on the side plate and located between the second exhaust port and the first exhaust port. One end of the smoke filtering device is sealingly connected with the second exhaust port. The other end of the smoke filtering device is in communication with the exhaust fan. The exhaust fan is electrically connected with the main control circuit board.

9. The coffee roaster of claim 1, wherein: An AI camera is also included. The AI camera is provided on the machine base. The shooting direction of the AI camera is directed to the drum device. The AI camera is electrically connected with the main control circuit board.

10. The coffee roaster of claim 1, wherein: A code scanning device and a temperature detection device are also included. The code scanning device is provided on the machine base and located outside the accommodating cavity. The temperature detection device is provided in the accommodating cavity. The main control circuit board is provided with a storage module for recording the historical parameters of the roasting of coffee beans. The temperature detection device and the code scanning device are electrically connected with the main control circuit board. The code scanning device is used to identify the two-dimensional code or bar code on the package of coffee beans.

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