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. According to the coffee bean baking machine, coffee beans are discharged in a whole machine swinging mode, it can be ensured that all the coffee beans are 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 bean inlet assembly which is innovatively designed is adopted, coffee beans can flexibly enter and exit from the coffee machine, the coffee machine has a good heat preservation function, and in addition, due to the efficient heating mode, the coffee machine has the rapid and meticulous temperature regulation and control capacity.

Description

Technical Field

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

[0002] Coffee roasting is the process of roasting green coffee beans into cooked coffee beans. Excellent coffee roasting technology relies on the perfect balance of time and temperature. Current mainstream coffee roasters fall into three categories: direct-fire, semi-hot-air, and hot-air.

[0003] Direct-fire heating uses a flame source to heat the drum directly. The drum's surface is perforated with holes of varying size and spacing, allowing the flame to reach the surface of the beans. While stirring the drum allows for even heating, the heat is difficult to control, making it easy to burn the surface of the beans. This can easily burn the surface of the beans and the silverskin, resulting in a bitter and burnt taste.

[0004] Semi-hot air direct fire: A perforated drum directly heats the beans with a flame. This direct fire draws hot air into the drum, accelerating heating and removing debris. While this method allows for more even roasting and better control of the heat than direct fire, the surface of the beans and the silverskin are still susceptible to burning. Furthermore, the hot air also removes the aroma of the beans.

[0005] Hot air type: using hot air to roast coffee beans, although it improves the roasting efficiency, the hot air also takes away the aroma of the coffee beans while flowing. Summary of the Invention

[0006] The purpose of the present utility model is to solve the above-mentioned problems in the prior art and provide a coffee roaster with a unique heating mode of a simmering roasting method. The coffee beans are discharged by swinging the entire machine, ensuring that all coffee beans can be discharged instantly after roasting, avoiding uneven heating. At the same time, an innovatively designed bean feeder assembly is used to provide good heat preservation.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A coffee roaster, comprising a bean feed 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 on 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 motor drives the baking chamber assembly to rotate.

[0013] The bean inlet assembly includes a funnel, a conduit, a hinged connecting rod, and a heat-insulating cover. The conduit is arranged below the funnel, and the bean outlet end of the conduit passes through the heat-insulating cover and extends into the baking chamber assembly. The conduit is hingedly connected to the heat-insulating barrel assembly via the hinged connecting rod. The heat-insulating cover cooperates with the front end opening of the heat-insulating barrel assembly.

[0014] The insulation barrel assembly includes an outer barrel, an inner barrel, a front cover, and a rear cover; insulation material is filled between the outer barrel and the inner barrel; the front cover is provided with a front opening to connect the bean input assembly with the baking chamber assembly in the inner barrel; the rear cover is provided with a rear opening to connect the motor and gear assembly with the baking chamber assembly.

[0015] The utility model 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 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 is communicated with the interior of the heat preservation barrel assembly.

[0016] The support assembly includes 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. 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 seat bearing 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 seat bearing are connected by a hollow shaft; one end of the hollow shaft is fixedly connected to the baking chamber rear cover; the seat bearing 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 includes a paddle fixed to the inner wall of the baking chamber main pipe.

[0020] The utility model further comprises a temperature sensor, one end of which passes through the hollow shaft and the reserved hole of the rear cover 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 existing technology, the beneficial effects achieved by the technical solution of the utility model are:

[0023] 1. This utility model adopts an innovative 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 utility model uses the swinging method of the whole machine to discharge coffee beans. This bean discharge method can ensure that all coffee beans can be discharged in an instant after roasting is completed, avoiding uneven heating of the coffee beans due to batch discharge after roasting.

[0025] 3. The utility model adopts an innovative bean input component. In addition to enabling the coffee beans to be flexibly fed in and out of the device, this design also has a good heat preservation function. In addition, it also has an efficient heating mode.

[0026] 4. The utility model has a simple structure and stable performance. After assembling electrical accessories, electric equipment and intelligent control systems, 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 utility model;

[0028] Figure 2 This is a schematic diagram of the exploded structure of the utility model;

[0029] Figure 3 This 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 1: Bean inlet assembly 1; Funnel 11; Connecting rod with hinge 12; Bean inlet 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; Variable diameter port 91; Pick 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 with reference to 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 arranged 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 both 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 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 outlet 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 cooperates with the front opening of the heat-insulating barrel assembly 2. After the bean feeding assembly 1 is installed in 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 reducing port 91 slightly, 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 number of exhaust gas outlets.

[0039] The heat-insulating barrel assembly 2 includes an outer heat-insulating barrel 21, an inner heat-insulating barrel 22, a front cover 23, and a rear cover 24. Insulating material is filled between the outer heat-insulating barrel 21 and the inner heat-insulating barrel 22. The front cover 23 has a front opening to connect the bean-feeding assembly 1 with the baking chamber assembly 9 in the inner heat-insulating barrel 22. The rear cover 24 has a rear opening to connect the motor and gear assembly 6 with the baking chamber assembly 9.

[0040] The electric fan 3 is located at the top of the insulation barrel assembly 2 and communicates with the interior of the insulation barrel assembly 2. The exhaust fan 101 is located 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 mounting pipe 25 and a switchable exhaust pipe 26. The fan mounting pipe 25 passes through the insulation barrel outer barrel 21 and is connected to the insulation barrel inner barrel 22. The switchable exhaust pipe 26 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 mounting pipe 25. The electric fan 3 continuously injects weak air into the interior space of the insulation barrel inner barrel 22 through the fan mounting pipe 25, helping to evenly distribute the heat in the insulation barrel inner barrel 22 and allowing the exhaust gas to be discharged through the exhaust outlet on the insulation cover 15. The exhaust fan 101 is installed below the switchable exhaust pipe 26 and is connected to the interior space of the insulation barrel inner barrel 22 through the switchable exhaust pipe 26.

[0041] The roasting chamber assembly 9 comprises, from front to back, a reducing port 91, a roasting chamber main pipe 93, a roasting chamber rear cover 94, a hollow shaft 95, a seated bearing 96, and a transmission gear 97. The reducing port 91 and the roasting chamber rear cover 94 are located at the front and rear ends of the roasting chamber main pipe 93, respectively. The transmission gear 97 and the seated bearing 96 are connected by a hollow shaft 95. One end of the hollow shaft 95 is fixedly connected to the roasting chamber rear cover 94. The seated bearing 96 is mounted on the heat-insulating barrel rear cover 24. The transmission gear 97 passes through the rear opening of the heat-insulating barrel rear cover 24 and engages with the drive gear in the motor and gear assembly 6. When the motor is activated, the drive gear and transmission gear drive the roasting chamber assembly 9 to rotate synchronously. More specifically, the inner wall of the roasting chamber main pipe 93 is provided with a paddle 92 to ensure even heating of the coffee beans. The roasting chamber rear cover 94 has air circulation holes.

[0042] One end of the temperature sensor 5 passes through the hollow shaft 95 and the reserved hole in the roasting chamber rear cover 94, reaching the roasting chamber main pipe 93, directly contacting the roasting coffee beans and detecting their real-time temperature. The other end of the temperature sensor 5 is fixedly mounted in the temperature sensor mounting opening 41, preventing the temperature sensor 5 from rotating. More specifically, the temperature sensor 5 and the motor and gear assembly 6 are each mounted on the mounting bracket 4. Once assembled, the mounting bracket 4, along with the temperature sensor 5 and the motor and gear assembly 6, are mounted on the rear cover 24 of the heat preservation barrel.

[0043] The bean hopper assembly 1, heat preservation bucket assembly 2, electric fan 3, motor and gear assembly 6, temperature sensor 5, mounting bracket 4, roasting chamber assembly 9, electric heating pipe 10, exhaust fan 101, etc., form a complete unit after assembly. The assembled unit is mounted on the base 8 and can be swung between fixed angles on the base 8 by the action of the telescopic rod 7.

[0044] See also Figure 4 The working state of the coffee roaster of the utility model includes the following steps:

[0045] 1) Add beans and start roasting: Pour coffee beans into hopper 11 and set aside. Start the electric fan 3, electric heating tube 10, and motor and gear assembly 6. Driven by the motor and gear assembly 6, the roasting chamber assembly 9 rotates synchronously, and the equipment begins preheating. After the equipment reaches the specified temperature, turn on the bean feed switch 13. The coffee beans enter the roasting chamber main pipe 93 through the conduit 14, and the bean feed switch 13 is closed, and roasting begins.

[0046] 2) Coffee Bean Ejection at the End of Roasting: After roasting is complete, the roasting chamber assembly 9 continues to rotate, and the telescopic rod 7 extends, pushing the device to begin swinging. Simultaneously, the bean inlet assembly 1 moves away from the front cover 23 of the heat preservation barrel, and the coffee beans are poured out to cool. From the start of roasting to the end of roasting, the switched exhaust duct 26 remains closed, and the exhaust fan 101 remains off.

[0047] 3) Equipment Cooling: After the coffee beans are poured out, the electric heating tube 10 is turned off. The switched exhaust pipe 26 is opened, and the exhaust fan 101 is activated, sucking out the hot air, silver scale, and impurities from the insulation barrel 22. Outside air is then introduced, and the equipment begins cooling. After the cooling process is complete, the switched exhaust pipe 26 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 retracted, and the equipment returns to the position shown in the diagram for loading beans and starting roasting, ready for the next roast.

Claims

1. A coffee roaster, characterized in that: Including bean feeding assembly, insulation 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 on 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 motor drives the baking chamber assembly to rotate.

2. The coffee roaster according to claim 1, wherein: The bean inlet assembly includes a funnel, a conduit, a hinged connecting rod, and a heat-insulating cover. The conduit is arranged below the funnel, and the bean outlet end of the conduit passes through the heat-insulating cover and extends into the baking chamber assembly. The conduit is hingedly connected to the heat-insulating barrel assembly via the hinged connecting rod. The heat-insulating cover cooperates with the front end opening of the heat-insulating barrel assembly.

3. The coffee roaster according to claim 1, wherein: The insulation barrel assembly includes an outer barrel, an inner barrel, a front cover, and a rear cover; insulation material is filled between the outer barrel and the inner barrel; the front cover is provided with a front opening to connect the bean input assembly with the baking chamber assembly in the inner barrel; the rear cover is provided with a rear opening to connect the motor and gear assembly with the baking chamber assembly.

4. The coffee roaster according to claim 1, wherein: It also includes an electric fan, which is arranged on the top of the heat preservation barrel assembly and is communicated with the interior of the heat preservation barrel assembly.

5. The coffee roaster according to claim 1, wherein: It also includes an exhaust fan, which is arranged at the bottom of the heat preservation barrel assembly and is connected to the interior of the heat preservation barrel assembly.

6. The coffee roaster according to claim 1, wherein: The support assembly includes 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.

7. The coffee roaster according to claim 6, wherein: The support assembly also includes a telescopic rod. 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.

8. The coffee roaster 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 seat bearing 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 seat bearing are connected by a hollow shaft; one end of the hollow shaft is fixedly connected to the baking chamber rear cover; the seat bearing 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.

9. The coffee roaster according to claim 8, wherein: The baking chamber assembly further includes a paddle fixed to the inner wall of the baking chamber main pipe.

10. The coffee roaster according to claim 8, wherein: It also includes a temperature sensor, one end of which passes through the hollow shaft and the reserved hole of the baking cavity rear cover to reach the baking cavity main pipe; the other end of the temperature sensor is fixedly installed.

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