Coffee baking machine

Abstract

A coffee baking machine relates to the field of coffee baking and comprises a bean feeding assembly, a heat preservation barrel assembly, a baking cavity assembly, a motor and gear assembly, a supporting assembly and an electric heating tube. The bean feeding assembly is hinged to the heat preservation barrel assembly. The heat preservation barrel assembly is rotationally connected with the supporting assembly. The baking cavity assembly and the electric heating tube are arranged in the heat preservation barrel assembly; the motor and gear assembly is arranged at the rear end of the heat preservation barrel assembly and connected with the baking cavity assembly through a gear so that the baking cavity assembly can be driven to rotate through the motor. The coffee beans are discharged in a whole machine swinging mode, it can be ensured that the coffee beans are all discharged instantly after baking is completed, and the situation that the coffee beans are heated unevenly due to discharging in batches after baking is completed is avoided. According to the coffee machine, the innovatively-designed bean inlet assembly is adopted, coffee beans can flexibly enter and exit from the coffee machine, a good heat preservation function is achieved, and in addition, an efficient heating mode is adopted, so that the coffee machine has the rapid and careful temperature regulation and control capacity.

Description

Technical Field

[0001] The present invention relates to the field of coffee roasting, in particular to a coffee roasting machine. Background Art

[0002] Coffee roasting refers to the process of roasting raw coffee beans into cooked coffee beans. Excellent coffee roasting technology focuses on the coordination of time and temperature. The existing mainstream coffee roasters are roughly divided into three categories: direct fire, semi-hot air direct fire and hot air.

[0003] Direct fire: The drum is heated directly by fire. The drum surface is perforated with holes of a certain size and spacing, so the fire can directly burn the surface of the beans. Although the drum can be stirred to evenly heat the coffee beans, the heat is difficult to control and it is still easy to burn the surface of the beans. The surface of the coffee beans and the silver skin debris are easily burned, resulting in bitterness and burnt taste.

[0004] Semi-hot air direct fire: The drum is heated directly by fire, and the drum surface is perforated. At the same time, hot air is brought into the drum to increase the heating speed and blow away the debris. Although the coffee beans can be roasted more evenly and the temperature is better controlled than the direct fire method, the surface of the coffee beans and the silver skin debris are still easily burned, and the hot air also takes away the aroma of the coffee beans while flowing.

[0005] Hot air method: Using hot air to roast coffee beans improves the roasting efficiency, but the hot air also takes away the aroma of the coffee beans while flowing. Summary of the invention

[0006] The purpose of the present invention is to solve the above-mentioned problems in the prior art and to provide a coffee roasting machine, which has a unique heating mode of a stewing roasting method and discharges coffee beans by swinging the whole machine, thereby ensuring that all coffee beans can be discharged in an instant after roasting is completed to avoid uneven heating; at the same time, an innovatively designed bean input component is adopted, which has a good heat preservation function.

[0007] In order to achieve the above object, the present invention adopts the following technical scheme:

[0008] A coffee roasting machine, comprising a bean feeding assembly, a heat preservation barrel assembly, a roasting chamber assembly, a motor and gear assembly, a support assembly, and an electric heating tube;

[0009] The bean-introducing assembly is arranged at the front end of the heat-insulating barrel assembly and is hinged to the heat-insulating barrel assembly so that the bean-introducing assembly can rotate;

[0010] The heat preservation barrel assembly is rotatably connected to the support assembly so that the heat preservation barrel assembly can rotate as a whole;

[0011] The baking chamber assembly and the electric heating pipe are arranged in the heat preservation barrel assembly, and the electric heating pipe is located at the outer periphery of the baking chamber assembly; the bean outlet end of the bean inlet assembly can extend into the baking chamber assembly;

[0012] The motor and gear assembly includes a motor and a driving gear connected to the motor. The motor and gear assembly is arranged at the rear end of the heat preservation barrel assembly and is connected to the baking chamber assembly through a transmission gear so that the baking chamber assembly is driven to rotate by the motor.

[0013] The bean-feeding assembly comprises a funnel, a conduit, a connecting rod with a hinge and a heat-insulating cover; the conduit is arranged below the funnel, and the bean-discharging end of the conduit passes through the heat-insulating cover and extends into the baking chamber assembly; the conduit is hinged to the heat-insulating barrel assembly through the connecting rod with a hinge; the heat-insulating cover cooperates with the front end opening of the heat-insulating barrel assembly.

[0014] The heat-insulating barrel assembly comprises an outer barrel, an inner barrel, a front cover plate and a rear cover plate; the outer barrel and the inner barrel are filled with heat-insulating material; the front cover plate is provided with a front end opening to enable the bean-inlet assembly to communicate with the baking chamber assembly in the inner barrel; the rear cover plate is provided with a rear end opening to enable the motor and gear assembly to be linked to the baking chamber assembly.

[0015] The present invention also includes an electric fan and an exhaust fan; the electric fan is arranged at the top of the heat preservation barrel assembly and communicated with the interior of the heat preservation barrel assembly, and the exhaust fan is arranged at the bottom of the heat preservation barrel assembly and communicated with the interior of the heat preservation barrel assembly.

[0016] The support assembly comprises a base and two support rods arranged on both sides of the base, and the outer sides of the heat preservation barrel assembly are rotatably connected to the two support rods respectively.

[0017] The support assembly also includes a telescopic rod, and a mounting bracket is provided at the rear end of the heat preservation barrel assembly. One end of the telescopic rod is connected to the base, and the other end is connected to the mounting bracket.

[0018] The baking chamber assembly includes a reducing port, a baking chamber main pipe, a baking chamber rear cover, a hollow shaft, a bearing with a seat and a transmission gear which are arranged in sequence from front to back; the reducing port and the baking chamber rear cover are respectively arranged at the front and rear ends of the baking chamber main pipe; the transmission gear and the bearing with a seat are connected through a hollow shaft; one end of the hollow shaft is fixedly connected to the baking chamber rear cover; the bearing with a seat is installed on the rear cover of the heat preservation barrel assembly, and the transmission gear passes through the rear end opening of the rear cover of the heat preservation barrel assembly and cooperates with the driving gear in the motor and gear assembly. After the motor is started, the baking chamber assembly can be driven to rotate synchronously through the transmission of the driving gear and the transmission gear.

[0019] The baking chamber assembly further comprises a paddle fixed to the inner wall of the baking chamber main pipe.

[0020] The present invention also includes a temperature sensor, one end of which passes through the hollow shaft and the reserved hole of the rear cover plate of the baking chamber to reach the main pipe of the baking chamber; the other end of the temperature sensor is fixedly installed.

[0021] The method for using the coffee roaster includes: after roasting is completed, the roasting chamber assembly keeps rotating, the bean feeding assembly leaves the front cover plate of the heat preservation barrel assembly, and the heat preservation barrel assembly rotates downward as a whole to pour out the coffee beans.

[0022] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0023] 1. The present invention adopts an innovatively designed stewing roasting method, which ensures the overall performance of the flavor and aroma of coffee beans while being easy to operate, safe to use and energy-saving.

[0024] 2. The present invention uses the whole machine to swing to discharge the coffee beans. This bean discharge method can ensure that all the coffee beans can be discharged in an instant after the roasting is completed, avoiding uneven heating of the coffee beans due to batch discharge after the roasting is completed.

[0025] 3. The present invention adopts an innovatively designed bean input component. This design not only enables the coffee beans to be flexibly fed into and out of the device, but also has a good heat preservation function. In addition, it also has an efficient heating mode.

[0026] 4. The present invention has a simple structure and stable performance. After being assembled with electrical accessories, electric equipment and an intelligent control system, it will have the ability to automatically roast coffee. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the decomposition structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the exploded structure of the baking chamber components;

[0030] Figure 4 This is a schematic diagram of the working status of a coffee roaster.

[0031] Figure numerals: bean-feeding assembly 1; funnel 11; connecting rod with hinge 12; bean-feeding switch 13; conduit 14; insulation cover 15; insulation barrel assembly 2; insulation barrel outer barrel 21; insulation barrel inner barrel 22; insulation barrel front cover 23; insulation barrel rear cover 24; fan mounting pipe 25; exhaust pipe with switch 26; electric fan 3; mounting bracket 4; temperature sensor mounting port 41; temperature sensor 5; motor and gear assembly 6; telescopic rod 7; base 8; baking chamber assembly 9; reducing port 91; paddle 92; baking chamber main pipe 93; baking chamber rear cover 94; hollow shaft 95; bearing with seat 96; transmission gear 97; electric heating pipe 10; exhaust fan 101. DETAILED DESCRIPTION

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] See also Figures 1 to 4 The coffee roaster of this embodiment includes a bean-feeding assembly 1, a heat preservation barrel assembly 2, an electric fan 3, a motor and gear assembly 6, a temperature sensor 5, a mounting bracket 4, a roasting chamber assembly 9, an electric heating pipe 10, a telescopic rod 7, a base 8, and an exhaust fan 101;

[0034] The bean-introducing assembly 1 is disposed at the front end of the heat-insulating barrel assembly 2 and is hinged to the heat-insulating barrel assembly 2 so that the bean-introducing assembly 1 can rotate;

[0035] The outer sides of the heat preservation barrel assembly 2 are rotatably connected to the two support rods on the two sides of the base 8, so that the heat preservation barrel assembly 2 can rotate as a whole; the rear end of the heat preservation barrel assembly 2 is provided with a mounting bracket 4, one end of the telescopic rod 7 is connected to the base 8, and the other end is connected to the mounting bracket 4;

[0036] The baking chamber assembly 9 and the electric heating pipe 10 are arranged in the heat preservation barrel assembly 2, and a plurality of electric heating pipes 10 are provided and installed around the baking chamber main pipe 93; the bean outlet end of the bean inlet assembly 1 can extend into the baking chamber assembly 9;

[0037] The motor and gear assembly 6 includes a motor and a driving gear connected to the motor. The motor and gear assembly 6 is arranged at the rear end of the heat preservation barrel assembly 2 and is connected to the baking chamber assembly 9 through a transmission gear 97 so as to drive the baking chamber assembly 9 to rotate through the motor.

[0038] The bean-feeding assembly 1 includes a funnel 11, a hinged connecting rod 12, a bean-feeding switch 13, a conduit 14, and a heat-insulating cover 15; the conduit 14 is arranged below the funnel 11, and the bean-discharging end of the conduit 14 passes through the heat-insulating cover 15 and extends into the baking chamber assembly 9; the conduit 14 is hinged to the heat-insulating barrel assembly 2 through the hinged connecting rod 12; the heat-insulating cover 15 matches the front end opening of the heat-insulating barrel assembly 2. After the bean-feeding assembly 1 is installed on the heat-insulating barrel assembly 2, the bean-feeding assembly 1 can swing between fixed angles. After being fixed and passing through the heat-insulating cover 15, the conduit 14 can be appropriately extended into the variable diameter port 91 a little, so that the coffee beans can be accurately put into the baking chamber main pipe 93. The heat-insulating cover 15 is provided with a plurality of exhaust gas outlets.

[0039] The insulation barrel assembly 2 includes an insulation barrel outer barrel 21, an insulation barrel inner barrel 22, an insulation barrel front cover 23 and an insulation barrel rear cover 24; insulation material is filled between the insulation barrel outer barrel 21 and the insulation barrel inner barrel 22; the insulation barrel front cover 23 is provided with a front end opening to enable the bean input assembly 1 to communicate with the baking chamber assembly 9 in the insulation barrel inner barrel 22; the insulation barrel rear cover 24 is provided with a rear end opening to enable the motor and gear assembly 6 to be linked to the baking chamber assembly 9.

[0040] The electric fan 3 is arranged at the top of the insulation barrel assembly 2 and communicates with the interior of the insulation barrel assembly 2, and the exhaust fan 101 is arranged at the bottom of the insulation barrel assembly 2 and communicates with the interior of the insulation barrel assembly 2. Specifically, it also includes a fan installation pipe 25 and an exhaust pipe 26 with a switch. The fan installation pipe 25 passes through the insulation barrel outer barrel 21 and is connected to the insulation barrel inner barrel 22; the exhaust pipe 26 with a switch passes through the insulation barrel outer barrel 21 and is connected to the insulation barrel inner barrel 22; the electric fan 3 is installed above the fan installation pipe 25, and the electric fan 3 continuously injects weak air into the internal space of the insulation barrel inner barrel 22 through the fan installation pipe 25, helping the heat of the insulation barrel inner barrel 22 to be evenly distributed, and allowing the exhaust gas to be discharged through the exhaust gas outlet on the insulation cover 15. The exhaust fan 101 is installed below the exhaust pipe 26 with a switch, and is connected to the internal space of the insulation barrel inner barrel 22 through the exhaust pipe 26 with a switch.

[0041] The roasting chamber assembly 9 includes a diameter reducing port 91, a roasting chamber main pipe 93, a roasting chamber rear cover plate 94, a hollow shaft 95, a seat bearing 96 and a transmission gear 97 which are arranged in sequence from front to back; the diameter reducing port 91 and the roasting chamber rear cover plate 94 are respectively arranged at the front and rear ends of the roasting chamber main pipe 93; the transmission gear 97 and the seat bearing 96 are connected through the hollow shaft 95; one end of the hollow shaft 95 is fixedly connected to the roasting chamber rear cover plate 94; the seat bearing 96 is installed on the heat preservation barrel rear cover plate 24, and the transmission gear 97 passes through the rear end opening of the heat preservation barrel rear cover plate 24 and cooperates with the driving gear in the motor and gear assembly 6. After the motor is started, the roasting chamber assembly 9 can be driven to rotate synchronously through the transmission of the driving gear and the transmission gear. More specifically, the inner wall of the roasting chamber main pipe 93 is provided with a paddle 92 to help the coffee beans be heated evenly; the roasting chamber rear cover plate 94 has air circulation holes.

[0042] After one end of the temperature sensor 5 passes through the reserved hole of the hollow shaft 95 and the rear cover plate 94 of the roasting chamber, it can reach the roasting chamber main pipe 93, directly contact the roasting coffee beans, and detect the real-time temperature of the coffee beans; the other end of the temperature sensor 5 is fixedly installed in the temperature sensor installation port 41, so the temperature sensor 5 does not rotate. More specifically, the temperature sensor 5 and the motor and gear assembly 6 are respectively installed on the mounting bracket 4. After the assembly is completed, the mounting bracket 4 cooperates with the temperature sensor 5 and the motor and gear assembly 6 to be installed on the rear cover plate 24 of the heat preservation barrel.

[0043] The bean-feeding assembly 1, the heat preservation barrel assembly 2, the electric fan 3, the motor and gear assembly 6, the temperature sensor 5, the mounting bracket 4, the baking chamber assembly 9, the electric heating pipe 10, the exhaust fan 101, etc., form a whole after being assembled. The whole after being assembled is mounted on the base 8, and can swing between fixed angles on the base 8 under the action of the telescopic rod 7.

[0044] See also Figure 4 The working state of the coffee roasting machine of the present invention includes the following steps:

[0045] 1) Start roasting by adding beans: Pour the coffee beans into the funnel 11 for later use. Start the electric fan 3, the electric heating pipe 10, the motor and the gear assembly 6, and the roasting chamber assembly 9 rotates synchronously under the drive of the motor and the gear assembly 6, and the equipment starts to preheat. After the equipment reaches the specified temperature, turn on the bean input switch 13, and the coffee beans enter the roasting chamber main pipe 93 along the guide tube 14, and then the bean input switch 13 is turned off, and roasting starts.

[0046] 2) Coffee beans are discharged after roasting: After roasting is completed, the roasting chamber assembly 9 keeps rotating, and the telescopic rod 7 extends to push the device to start swinging. At the same time, the bean inlet assembly 1 leaves the front cover plate 23 of the heat preservation barrel, and the coffee beans are poured out for cooling. From the start of roasting to the end of roasting, the exhaust pipe 26 with a switch remains closed, and the exhaust fan 101 remains turned off.

[0047] 3) Equipment cooling: After the coffee beans are poured out, the electric heating tube 10 is turned off. The exhaust pipe 26 with switch is opened, and the exhaust fan 101 is started to suck out the hot air, silver skin and impurities in the inner barrel 22 of the insulation barrel, and the outside air enters, and the equipment begins to cool down. After the cooling work is completed, the exhaust pipe 26 with switch is closed, and the exhaust fan 101 is turned off. The motor in the motor and gear assembly 6 is turned off, and the roasting chamber assembly 9 stops rotating. The telescopic rod 7 is shortened, and the equipment returns to the posture shown in the schematic diagram of the beans being put in and roasting, waiting for the next roasting.

Claims

1. A coffee roasting machine, characterized in that: It includes bean feeding assembly, heat preservation barrel assembly, baking chamber assembly, motor and gear assembly, support assembly and electric heating pipe; The bean-introducing assembly is arranged at the front end of the heat-insulating barrel assembly and is hinged to the heat-insulating barrel assembly so that the bean-introducing assembly can rotate; The heat preservation barrel assembly is rotatably connected to the support assembly so that the heat preservation barrel assembly can rotate as a whole; The baking chamber assembly and the electric heating pipe are arranged in the heat preservation barrel assembly, and the electric heating pipe is located at the outer periphery of the baking chamber assembly; the bean outlet end of the bean inlet assembly can extend into the baking chamber assembly; The motor and gear assembly includes a motor and a driving gear connected to the motor. The motor and gear assembly is arranged at the rear end of the heat preservation barrel assembly and is connected to the baking chamber assembly through a transmission gear so that the baking chamber assembly is driven to rotate by the motor.

2. The coffee roasting machine according to claim 1, characterized in that: The bean-feeding assembly comprises a funnel, a conduit, a connecting rod with a hinge and a heat-insulating cover; the conduit is arranged below the funnel, and the bean-discharging end of the conduit passes through the heat-insulating cover and extends into the baking chamber assembly; the conduit is hinged to the heat-insulating barrel assembly through the connecting rod with a hinge; the heat-insulating cover cooperates with the front end opening of the heat-insulating barrel assembly.

3. The coffee roasting machine according to claim 1, wherein: The heat-insulating barrel assembly comprises an outer barrel, an inner barrel, a front cover plate and a rear cover plate; the outer barrel and the inner barrel are filled with heat-insulating material; the front cover plate is provided with a front end opening to enable the bean-inlet assembly to communicate with the baking chamber assembly in the inner barrel; the rear cover plate is provided with a rear end opening to enable the motor and gear assembly to be linked to the baking chamber assembly.

4. The coffee roasting machine according to claim 1, wherein: It also includes an electric fan and an exhaust fan; the electric fan is arranged at the top of the heat preservation barrel assembly and is connected to the interior of the heat preservation barrel assembly, and the exhaust fan is arranged at the bottom of the heat preservation barrel assembly and is connected to the interior of the heat preservation barrel assembly.

5. The coffee roasting machine according to claim 1, characterized in that: The support assembly comprises a base and two support rods arranged on both sides of the base, and the outer sides of the heat preservation barrel assembly are rotatably connected to the two support rods respectively.

6. The coffee roasting machine according to claim 5, characterized in that: The support assembly also includes a telescopic rod, and a mounting bracket is provided at the rear end of the heat preservation barrel assembly. One end of the telescopic rod is connected to the base, and the other end is connected to the mounting bracket.

7. The coffee roasting machine according to claim 1, wherein: The baking chamber assembly includes a reducing port, a baking chamber main pipe, a baking chamber rear cover, a hollow shaft, a bearing with a seat and a transmission gear which are arranged in sequence from front to back; the reducing port and the baking chamber rear cover are respectively arranged at the front and rear ends of the baking chamber main pipe; the transmission gear and the bearing with a seat are connected through a hollow shaft; one end of the hollow shaft is fixedly connected to the baking chamber rear cover; the bearing with a seat is installed on the rear cover of the heat preservation barrel assembly, and the transmission gear passes through the rear end opening of the rear cover of the heat preservation barrel assembly and cooperates with the driving gear in the motor and gear assembly. After the motor is started, the baking chamber assembly can be driven to rotate synchronously through the transmission of the driving gear and the transmission gear.

8. The coffee roasting machine according to claim 7, characterized in that: The baking chamber assembly further comprises a paddle fixed to the inner wall of the baking chamber main pipe.

9. The coffee roasting machine according to claim 7, characterized in that: It also includes a temperature sensor, one end of which passes through the hollow shaft and the reserved hole of the rear cover plate of the baking cavity and reaches the main pipe of the baking cavity; the other end of the temperature sensor is fixedly installed.

10. The method for using the coffee roaster according to any one of claims 1 to 9, characterized in that: After the roasting is completed, the roasting chamber assembly keeps rotating, the bean-feeding assembly leaves the front cover plate of the heat preservation barrel assembly, and the heat preservation barrel assembly rotates downward as a whole to pour out the coffee beans.

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