TWM465019U - Coffee bean roaster - Google Patents

Description

Coffee bean roaster

The present invention relates to a coffee bean roasting machine, and more particularly to a device for roasting green coffee beans by using hot air.

According to many consumers, they prefer to roast coffee beans themselves. Therefore, there are a variety of small household coffee bean roasting devices available on the market. The conventional coffee bean roasting device generally comprises a body, a drum installed in the body, a motor capable of rotating the drum, a heating element capable of heating the drum, a suction fan, and the heating element and the exhaust fan Control device. In use, the green coffee beans are placed in the drum, and the switch of the control device is opened to heat-bake the heating element. Since the outer skin of the coffee bean will be detached during the baking process, it is necessary to extract the outer skin by the exhaust of the exhaust fan to avoid the scorching of the outer skin and affect the flavor of the coffee bean.

However, conventional coffee bean roasting devices generally use gas to heat up, which is not convenient in handling; in addition, during the baking process of coffee beans, the outer skin of the coffee beans will be discharged to the outside of the oily smoke, which has an adverse effect on the environment. In addition, when the coffee beans are baked, it is usually necessary to clean the components of the coffee bean roasting device. However, for general household or non-professional consumers, the cleaning operation of the coffee bean roasting device is not convenient, and is provided in the body. The inner roller is also not easy to disassemble for cleaning or maintenance.

Therefore, the purpose of the present invention is to provide a coffee bean roasting machine which has the advantages of convenient handling, easy cleaning, simple structure, and easy control of heating temperature.

The coffee bean roasting machine according to the present invention comprises a body, a blower, a heater, a coffee bean container, and a control device. The body contains an air vent. An air guiding duct is disposed between the air blower and the air outlet, and the air blower can output a gas flow having a wind pressure into the air guiding duct and flow out through the air outlet hole. The heater is mounted on the duct of the air duct for heating the airflow output by the blower. The inside of the coffee bean container is accommodated by a coffee bean container for placing over the air outlet of the body, the bottom end of the coffee bean container has a lower opening, and the inside of the coffee bean container is provided with a bottom plate for providing The coffee beans are placed, the bottom plate is inclined at an angle non-parallel to the axial direction of the coffee bean container, the bottom plate includes a lower portion adjacent to the lower opening and an upper portion away from the lower opening, and the bottom portion of the bottom plate is provided with a plurality of vent holes. The control device can individually control the activation of the heater and the blower. After the coffee bean container is placed on the body, the lower opening of the coffee bean container is in communication with the air outlet, so that the airflow output by the air blower can enter the coffee bean container from the air outlet, so that the coffee bean container Coffee beans are circulated and convected.

In a preferred embodiment, a mounting seat is assembled above the air venting opening, the interior of the mounting seat defining a space for the coffee bean container to be movably mounted within the mounting seat. The top of the mount incorporates a sleeve that connects an exhaust pipe to a soot filter vessel, the interior of which is filled with water. The coffee bean container includes a bottom portion, a top portion, and an intermediate portion between the bottom portion and the top portion, the lower opening being located at a bottom end of the bottom portion, the coffee bean container is placed in the mounting seat, the coffee bean a lower opening of the container is in communication with the air outlet, the top end of the top having an upper opening, and the upper opening of the coffee bean container is in alignment with the bottom end of the sleeve when the coffee bean container is placed in the mounting seat, The airflow entering the coffee bean container can be discharged from the upper opening and then filtered into the soot filter container via the exhaust pipe.

Other objects, advantages and features of the present invention will be apparent from the following description of the preferred embodiments illustrated herein.

10‧‧‧Roasting machine

12‧‧‧ body

14‧‧‧Blowers

16‧‧‧heater

18‧‧‧ coffee bean container

20‧‧‧Control device

22‧‧‧ top board

23.24‧‧‧ side panels

26‧‧‧Baffle

28.30‧‧ ‧ compartment

32‧‧‧ Vents

34‧‧‧ Mounting

36‧‧‧Sleeve

38‧‧‧Exhaust pipe

40‧‧‧Smoke filter container

42‧‧‧ water

44‧‧‧air duct

46‧‧‧Different pipe

48‧‧‧Relief valve

50‧‧‧ coffee beans

52‧‧ ‧ baking room

54‧‧‧ bottom

56‧‧‧ top

58‧‧‧ middle part

60‧‧‧ opening

62‧‧‧floor

64‧‧‧ lower

66‧‧‧Upper

68‧‧‧ venting holes

70‧‧‧Opening

72‧‧‧temperature sensor

74‧‧‧ airflow

75‧‧‧ skin

76‧‧‧ airflow

The first figure is a perspective view of a coffee bean roasting machine constructed in accordance with an embodiment of the present invention.

The second figure is a perspective view similar to the first figure showing the separation of the coffee bean container from the body.

The third figure is another perspective view of the coffee bean roasting machine of the first figure.

The fourth figure is a cross-sectional view taken along line 4-4 of the first figure.

The fifth figure shows a partial cutaway view of the coffee bean container of the second figure.

Figure 6 is a partial cross-sectional view of the coffee bean roasting machine of the fourth figure, showing a schematic view of the roasting and hot air flow of the coffee roasting machine.

The preferred structural content of the present invention will now be described as an example only, but not by way of limitation, and the following description of the preferred structure of the present invention as follows: FIG. 1 to FIG. 6 show coffee constructed according to a specific embodiment of the present invention. The bean roaster 10 includes a body 12, a blower 14, a heater 16, a coffee bean container 18, and a control device 20. In the present embodiment, the body 12 includes a top plate 22 and two side plates 23, 24. The interior of the body 12 is partitioned into two compartments 28, 30 by a partition 26 to provide separation of the blower 14 from the control device 20. To accommodate. The top plate 22 has an air outlet 32, and a mounting seat 34 is assembled above the air outlet 32. The interior of the mounting seat 34 defines a The space accommodated by the coffee bean container 18. Furthermore, the top of the mount 34 incorporates a sleeve 36 that connects an exhaust pipe 38 to a soot filter container 40. In the present embodiment, the soot filter container 40 is a tub mounted on the top plate 22 of the body 12 and is internally filled with water 42.

In the present embodiment, the blower 14 is mounted in the body 12 and is a turbo blower. An air duct 44 is disposed between the air blower 14 and the air outlet 32. The blower 14 can output a gas stream having a wind pressure to the air duct 44 and flow out through the air outlet 32. In the present embodiment, the air duct 44 connects a branch pipe 46 to a pressure relief valve 48, so that the output air pressure of the air blower 14 can be adjusted and controlled according to the baking condition of the coffee beans. In the present embodiment, the pressure relief valve 48 is mounted on the side plate 23 of the body 12 and is a manual control valve. However, the pressure relief valve 48 may be a solenoid valve.

The heater 16 is mounted on the duct of the air duct 44 for heating the airflow output from the blower 14. In the present embodiment, the heater 16 is an electric heater such as a ceramic heating tube. When the heater 16 is energized, the airflow sent into the air duct 44 can be heated to output hot air to the air outlet 32. In addition, the body 12 can be provided with a fan (not shown) on the side plate 24 corresponding to the heater 16 for heat dissipation.

The coffee bean container 18 is movably or detachably mounted within the mount 34, and the interior of the coffee bean container 18 defines a torrefaction chamber 52 that is receivable for coffee beans (green coffee beans) 50. In the present embodiment, the coffee bean container 18 includes a metal bottom portion 54, a metal top portion 56, and a transparent intermediate portion 58 between the bottom portion 54 and the top portion 56. The bottom end of the bottom portion 54 has a lower opening 60. When the coffee bean container 18 is placed in the mounting seat 34, the lower opening 60 of the coffee bean container 18 is in alignment with the air outlet 32 so that the air blower 14 outputs Airflow can enter the coffee bean container 18 from the vent 32. Furthermore, the bottom 54 of the coffee bean container 18 A bottom plate 62 is provided for providing a placement of the coffee beans 50, the bottom plate 62 being inclined at an angle non-parallel to the axial direction of the coffee bean container 18 (see fifth and sixth figures) such that the bottom plate 62 includes a proximity The lower portion 64 of the lower opening 60 and the upper portion 66 away from the lower opening 60, the lower portion 64 of the bottom plate 62 is provided with a plurality of venting holes 68 (the venting holes 68 have a smaller diameter than the coffee beans 50). Moreover, the top end of the top portion 56 has an upper opening 70. When the coffee bean container 18 is placed in the mounting seat 34, the upper opening 70 of the coffee bean container 18 is in alignment with the bottom end of the sleeve 36, such that Airflow entering the coffee bean container 18 can be discharged from the upper opening 70 and into the exhaust pipe 38. In addition, the roasting machine 10 further includes a temperature sensor 72. One end of the temperature sensor 72 extends into the coffee bean container 18 for detecting the temperature of the coffee beans 50 inside the coffee bean container 18.

The control device 20 is mounted within the compartment 30 of the body 12 and includes a power switch (not labeled). The control device 20 further includes a plurality of adjustment buttons (not labeled) for individually controlling the heating temperature of the heater 16 and the wind force of the blower 14. Moreover, the other end of the temperature sensor 72 is electrically connected to the control device 20 such that the control device 20 can control the heater 16 and the blower 14 according to the sensed temperature of the temperature sensor 72. In this embodiment, the control device 20 may further include a timer such that the roaster 10 automatically powers off after a selected time.

The coffee bean roasting machine 10 formed according to the present invention is implemented by first pouring the coffee beans 50 into the coffee bean container 18; then, the coffee bean container 18 containing the coffee beans 50 is moved into the mounting seat 34, The lower opening 60 of the coffee bean container 18 is positioned above the air outlet 32, and the upper opening 70 of the coffee bean container 18 is positioned below the bottom end of the sleeve 36; then, the blower 14 and the heater 16 are activated. . Thus, the airflow output by the blower 14 (as indicated by arrows 74 in the fourth, fifth, and sixth figures) is heated by the heater 16 and enters the coffee bean container 18 via the air duct 44 and the air outlet 32 to the coffee. Bean 50 is baked by heating (as shown in Figure 6).

Since the coffee bean 50 is placed on the sloping bottom plate 62, the airflow entering the coffee bean container 18 via the vent 32 will cause the coffee bean 50 to move upwardly through the venting opening 68 of the bottom plate 62 toward the bottom plate 62. The upper portion 66 (the interior of the sleeve 36 constitutes a buffer for the coffee bean 50 to jump upward), while the coffee bean 50 positioned at the upper portion 66 of the bottom plate 62 moves along the slope of the bottom plate 62 toward the lower portion 64 of the bottom plate 62. Thus, the coffee bean 50 in the coffee bean container 18 is inverted by the wind pressure of the airflow and moved from the upper portion 66 of the bottom plate 62 toward the lower portion 64 to circulate convection to obtain a uniformly heated baking effect. .

During the baking process, the outer skin 75 of the coffee bean 50 and the soot generated by heating may flow into the soot filter container 40 via the sleeve 36 and the exhaust pipe 38 to be dropped into the water 42 or adsorbed by the water 42 so that the coffee beans 50 The residue and soot produced by the heating will remain in the soot filter vessel 40, and the purified gas stream (shown at 76 in Figure 6) will be discharged outward. Further, after the baking is completed, the coffee bean container 18 containing the coffee beans 50 can be removed from the mount 34 and the roasted coffee beans 50 can be removed from the coffee bean container 18. In a possible embodiment, a drawer opening may also be provided in the coffee bean container 18 to facilitate removal and loading of the coffee beans 50.

The coffee bean roasting machine 10 constructed according to the present invention is removably mounted into the mounting seat 34 by the mobile coffee bean container 18, so that the coffee roasting machine 10 has the advantages of easy cleaning and maintenance; By tilting the bottom plate 62 disposed in the coffee bean container 18, the coffee beans 50 in the coffee bean container 18 are circulated and convected so that the coffee beans 50 can be uniformly heated in the coffee bean container 18; The arrangement of the soot filter container 40 allows the coffee bean roaster 10 to discharge the purified air stream; moreover, the blower 14 of the coffee bean roaster 10 of the present invention and the electric heater 16 have the advantage of convenient handling.

In the foregoing specification, the present description is only described in terms of a specific embodiment, and There are many variations or modifications to the features of this creation. Therefore, obvious substitutions and modifications to those skilled in the art will still be incorporated in the scope of the patent claimed herein.

10‧‧‧Roasting machine

12‧‧‧ body

14‧‧‧Blowers

16‧‧‧heater

18‧‧‧ coffee bean container

22‧‧‧ top board

26‧‧‧Baffle

28.30‧‧ ‧ compartment

32‧‧‧ Vents

34‧‧‧ Mounting

36‧‧‧Sleeve

38‧‧‧Exhaust pipe

40‧‧‧Smoke filter container

42‧‧‧ water

44‧‧‧air duct

52‧‧ ‧ baking room

62‧‧‧floor

72‧‧‧temperature sensor

74‧‧‧ airflow

Claims (5)

A coffee bean roasting machine comprising: a body comprising an air outlet; a blower having an air duct between the air outlet and the air outlet, the air blower outputting a gas flow having a wind pressure into the air duct and Flowing from the air outlet; a heater mounted on the air duct for heating the airflow output by the air blower; a coffee bean container, the inside of which is accommodated by coffee beans, the coffee bean container being used for placing Above the air outlet of the body, the bottom end of the coffee bean container has a lower opening, and the inside of the coffee bean container is provided with a bottom plate for providing coffee bean placement, and the bottom plate is non-parallel to the axial direction of the coffee bean container. The bottom plate includes a lower portion adjacent to the lower opening and an upper portion away from the lower opening, the lower portion of the bottom plate is provided with a plurality of vent holes, and a control device for individually controlling the start of the heater and the blower; After the coffee bean container is placed on the body, the lower opening of the coffee bean container is in communication with the air outlet, so that the airflow output by the air blower can enter from the air outlet In the coffee bean container. The coffee bean roasting machine according to claim 1, wherein the body comprises a top plate, the air outlet is disposed on the top plate, and a mounting seat is assembled above the air outlet, the interior of the mounting seat defines a coffee The space contained in the bean container is movably mounted within the mount. The coffee bean roasting machine according to claim 2, wherein the top of the mounting seat is combined with a sleeve, the sleeve is connected to an exhaust pipe to a soot filter container, and the inside of the soot filter container is filled with water, the coffee The bean container includes a bottom portion, a top portion, and an intermediate portion between the bottom portion and the top portion, the lower opening being located at a bottom end of the bottom portion, and the coffee bean container is disposed after the coffee bean container is placed in the mounting seat a lower opening in alignment with the air outlet, the top end of the top An upper opening, the upper opening of the coffee bean container is in alignment with the bottom end of the sleeve when the coffee bean container is placed in the mount, such that airflow into the coffee bean container can be discharged from the upper opening and via The exhaust pipe enters the soot filter vessel. A coffee bean roasting machine according to claim 3, wherein the blower is disposed in the body separately from the control device. A coffee bean roasting machine according to claim 2, wherein the heater is an electric heater.