Coffee bean baking machine
By using a tilted roasting pan and a horizontal air intake design, the problem of uneven roasting and flavor loss in small tabletop coffee bean roasters is solved, achieving uniform roasting and flavor preservation, and improving user safety and automatic bean discharge efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-10
AI Technical Summary
Existing small tabletop coffee roasters use a vertical/upright structure, which makes it difficult for hot air to effectively tumble and rotate the coffee beans, resulting in uneven roasting and flavor loss. This flavor loss is even more severe when the airflow is required in high-stack situations.
The inclined roasting pan and horizontal air intake design, combined with a transparent observation window and optimized exhaust channels, enable the coffee beans to rotate and tumble, ensuring even roasting and minimizing flavor loss.
The tilted design ensures uniform roasting of coffee beans, reduces flavor loss, improves safety during observation and efficiency of automatic bean stacking, and enhances the user experience.
Smart Images
Figure CN224098710U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of baking equipment, in particular to a coffee bean roaster. BACKGROUND
[0002] At present, the hot air type small table coffee bean roaster on the market generally adopts the vertical / vertical type roasting pot, the heated air is accelerated by the air blower and is blown into the roasting pot in a specific direction through the guide vane arranged at the bottom of the roasting pot, so as to heat the beans in the roasting pot. The hot air flow entering the roasting pot must rotate and turn the coffee beans while heating the coffee beans, constantly changing the position of the coffee beans to achieve the requirement of uniform roasting.
[0003] However, due to the structure of the vertical / vertical type roasting pot, the air guide vane only produces a rotating horizontal guide force, and the longitudinal turning power of the coffee beans can only be generated by the size of the wind power, so that the hot air flow is relatively difficult to make the coffee beans rotate and turn (the position exchange between the stacked layers of beans). In addition, the inner diameter of the roasting pot of such small table roaster is small, and the cross-sectional area is correspondingly small. In the case of roasting more coffee beans, the height of the bean stack will be relatively high. At this time, only larger wind power can be used to turn the beans. However, too much wind power input will cause more loss of coffee flavor during the roasting process. On the other hand, the coffee beans located at the center position of the roasting pot obtain relatively small kinetic energy, which also leads to uneven roasting of the coffee beans. CONTENT OF THE UTILITY MODEL
[0004] Therefore, the utility model aims at overcoming the defects of the prior art, providing a coffee bean roaster, which adopts an inclined roasting pot, so that the roaster can make the coffee beans rotate and turn at the same time by smaller wind power, ensuring uniform roasting of the coffee beans while avoiding excessive loss of coffee flavor.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a coffee bean roaster, which comprises:
[0006] A roaster shell is provided with a roasting cavity in the inside, and the front lower end of the roaster shell is recessed backward to form a bean outlet space;
[0007] A roasting pot is inclined to the front of the roaster shell and arranged in the roasting cavity, and the inclination of the roasting pot to the front of the roaster shell is within the range of 25° to 40°. The front side bottom of the roasting pot is provided with a bean outlet connected with the bean outlet space, and the bean outlet is provided with an openable or closable bean discharge door;
[0008] A hot air supply device is arranged in the roasting machine shell and used to provide heat and air from the bottom of the roasting pot to the inside of the roasting pot.
[0009] A feeding channel is arranged on the roasting machine shell, one end of which is connected to the inside of the roasting pot, and the other end of which extends above the roasting machine shell.
[0010] An exhaust channel is arranged on the roasting machine shell, one end of which is connected to the inside of the roasting pot, and the other end of which extends above the rear side of the roasting machine shell.
[0011] A transparent observation window is arranged on the top of the roasting machine shell in a slanting manner, is parallel to the upper end surface of the roasting pot, and is used to observe the inside of the roasting pot.
[0012] As an embodiment, a control operation panel is arranged on the top of the roasting machine shell in a slanting manner towards the front side of the roasting machine shell, is parallel to the upper end surface of the roasting pot, is used to control the start or stop of the hot air supply device, and is used to control the opening or closing of the bean discharging door.
[0013] As an embodiment, the transparent observation window is arranged on the control operation panel, and the transparent observation window is coaxially arranged with the roasting pot.
[0014] As an embodiment, the hot air supply device comprises a hot air chamber, a heating element arranged in the hot air chamber, and a blower, the hot air chamber is arranged in the roasting cavity, the roasting pot and the hot air chamber are both cylindrical barrel structures, the bottom of the roasting pot is arranged in the hot air chamber, the roasting pot and the hot air chamber are coaxially arranged, and a plurality of hot air inlets are arranged on the outer peripheral wall of the part of the roasting pot that extends into the hot air chamber and are connected to the hot air chamber; an air inlet is arranged on the side wall of the roasting machine shell, an air inlet channel is arranged on the outer side wall of the hot air chamber in a direction parallel to the horizontal plane, and the blower is arranged in the air inlet channel and is used to draw external air into the hot air chamber from the air inlet.
[0015] As an embodiment, the inclination of the roasting pot towards the front of the roasting machine shell is 30°.
[0016] As an embodiment, the feeding channel is arranged on the rear upper end of the roasting machine shell, one end of the feeding channel is connected to the upper end of the rear side of the roasting pot, the other end of the feeding channel extends above the rear side of the roasting machine shell, and a feeding hopper is connected to the end of the feeding channel that extends above the rear side of the roasting machine shell.
[0017] As an implementation form, the exhaust passage is arranged at the upper end of the rear side of the roasting shell, one end of the exhaust passage is connected with the upper end of the rear side of the roasting pan, and the height of the end of the exhaust passage connected with the roasting pan is higher than the end of the feeding passage connected with the roasting pan, and the other end of the exhaust passage extends vertically upward above the upper end of the rear side of the roasting shell.
[0018] As an implementation form, the bottom of the roasting shell is provided with a plurality of supporting legs.
[0019] Compared with the prior art, the coffee bean roaster has the following beneficial effects:
[0020] 1. Optimized observation angle: by setting the inclination angle of the roasting pan towards the front of the roasting shell to be within the range of 25° to 40°, and by setting a transparent observation window on the top of the roasting shell, when a user stands in front of the coffee bean roaster placed on a table, the user can directly observe the roasting of the beans in the roasting pan from the transparent observation window on the top of the roasting shell at a natural overhead angle. In addition, the exhaust outlet of the exhaust passage of the roaster is arranged above the rear side of the roasting shell, and the exhaust direction is vertically upward. When the user observes the roasting in the roasting pan from the transparent observation window of the roasting shell, since the transparent observation window is inclined towards the front side of the roasting shell, the user does not need to stretch his head to the top of the roasting shell to observe, thereby avoiding the influence of the exhaust hot air on the user during observation, and increasing safety and comfort.
[0021] 2. Improved air flow application efficiency: compared with the vertically designed roasting pan in the prior art, the air flow entering the roasting pan must consider the 360° range of the entire bottom of the roasting pan to effectively promote the beans to jump and roll. In the present application, by setting the inclination angle of the roasting pan towards the front of the roasting shell to be within the range of 25° to 40°, the beans in the roasting pan are stacked at the lowest point (the lowermost position on the front side) of the inclined bottom of the roasting pan due to the effect of gravity, and by setting the air inlet passage of the air blower at a tangential position parallel to the bottom of the roasting pan, the air flow entering from the air blower is blown to the middle and lower layers of the stacked beans after being heated by the heating element, thereby causing the beans to jump and roll.
[0022] 3. Ensure the uniformity of the roasting and the retention of the flavor of the beans: the oblique setting of the roasting pot matches the horizontal direction of the air inlet channel of the air blower, and matches the bottom and inner wall of the roasting pot which has been heated, so that the hot air flow after being heated easily drives the beans to rotate and tumble continuously, and makes the beans between the surface layer and the bottom layer continuously alternate positions, which is conducive to the uniform contact of the beans with the hot air during the whole roasting process, thereby ensuring the uniformity of the roasting of the beans; in addition, the oblique setting of the roasting pot matches the horizontal direction of the air inlet channel of the air blower, so that the roaster of the utility model can drive the beans to rotate and tumble through a smaller air volume, and the flavor of the coffee beans can be effectively retained.
[0023] 4. Reduce the beans jumping into the exhaust channel: the exhaust channel of the roasting pot is arranged at the top rear side of the roasting pot, so that during the roasting process, when the beans tumble and jump in the roasting pot due to the action of the airflow, the beans will only fall to the lowest point of the roasting pot due to the action of the oblique setting of the roasting pot and the gravity, and in addition, the direction of the centrifugal force generated by the rotation of the beans is also longitudinal, which can effectively reduce the probability of the beans jumping into the exhaust channel during the whole roasting process.
[0024] 5. Beneficial to automatic bean discharge: the oblique setting of the roasting pot makes the beans stack at the lowest point thereof due to the gravity, and the bean discharge door of the roasting pot is arranged at the bottom of the front side of the roasting pot, so that when the beans in the roasting pot are roasted, the oblique setting of the roasting pot is like a funnel, which makes the beans fall along the surface thereof to the bean outlet, so that the beans can be completely discharged without tilting the whole roaster.
[0025] In order to better understand and implement, the utility model is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 It is a structure schematic view of the coffee bean roaster of the utility model embodiment;
[0027] Figure 2 It is a structure schematic view of the coffee bean roaster of the utility model embodiment;
[0028] Figure 3 It is a structure schematic view of the coffee bean roaster of the utility model embodiment;
[0029] Figure 4 It is Figure 3 It is the sectional view of A-A direction shown in the figure;
[0030] Figure 5 It is Figure 3 It is the sectional view of B-B direction shown in the figure;
[0031] Figure 6 Figure 1 is a structural schematic diagram of the inside of a coffee bean roaster according to an embodiment of the present application;
[0032] Figure 7 Figure 2 is another structural schematic diagram of the inside of a coffee bean roaster according to an embodiment of the present application.
[0033] Legend:
[0034] 10, roaster shell; 11, roasting cavity; 12, bean outlet space; 13, support foot; 20, roasting pot; 21, bean outlet; 22, feeding channel; 23, feeding hopper; 24, exhaust channel; 25, exhaust air outlet; 30, control operation panel; 40, transparent observation window; 50, hot air chamber; 60, air blower. DETAILED DESCRIPTION
[0035] To further illustrate the embodiments, the present application provides drawings. These drawings are part of the disclosure of the present application, which mainly serves to illustrate the embodiments, and can be combined with the related description of the specification to explain the operating principle of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementations and the advantages of the present application.
[0036] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated or implied to have a particular orientation, structure and operation. Therefore, it cannot be understood as a limitation on the present application.
[0037] In the related art, the hot air type small table coffee bean roaster on the market generally adopts a vertical / vertical roasting pot. The heated air is accelerated by the air blower and then blown into the roasting pot through the guide vanes arranged at the bottom of the roasting pot in a specific direction, so as to heat the beans in the roasting pot. The hot air flow entering the roasting pot must rotate and turn the coffee beans while heating the coffee beans, constantly changing the position of the coffee beans to achieve uniform roasting requirements.
[0038] However, due to the vertical / straight structure of the baking pot, the air guide blades only generate a rotating horizontal guiding force, and the longitudinal flipping power of the coffee beans can only be generated by the size of the air flow, so that the hot air flow is more difficult to make the coffee beans rotate and flip (position exchange between the stacked layers of beans) at the same time. In addition, the inner diameter of the baking pot of such a small table-top roaster is small, and its cross-sectional area is correspondingly small. In the case of roasting more coffee beans, the height of the bean stack will be relatively high. At this time, only larger air flow can be used to flip the beans. However, too much air flow input will cause more flavor loss of the coffee beans during the roasting process. On the other hand, the coffee beans located at the center of the baking pot obtain relatively small kinetic energy, which also leads to uneven roasting of the coffee beans.
[0039] Therefore, the utility model embodiment provides a coffee bean roaster, which adopts an obliquely arranged baking pot 20, so that the roaster can make the coffee beans rotate and flip at the same time by using smaller air flow, thereby ensuring uniform roasting of the coffee beans and avoiding excessive flavor loss of the coffee beans.
[0040] Please refer to Figures 1 to 7 The utility model embodiment provides a coffee bean roaster, which comprises:
[0041] A roaster shell 10 is provided with a baking cavity 11 inside, and the lower front end of the roaster shell 10 is recessed backward to form a bean outlet space 12;
[0042] A baking pot 20 is obliquely arranged in the baking cavity 11 in front of the roaster shell 10, and the inclination of the baking pot 20 in front of the roaster shell 10 is within the range of 25° to 40°. The front bottom of the baking pot 20 is provided with a bean outlet 21 connected with the bean outlet space 12, and the bean outlet 21 is provided with an openable and closable bean discharge door;
[0043] A hot air supply device is arranged in the roaster shell 10 and is used to provide heat and air from the bottom of the baking pot 20 to the inside of the baking pot 20;
[0044] A feeding channel 22 is arranged on the roaster shell 10, one end of which is connected with the inside of the baking pot 20, and the other end of which extends above the roaster shell 10;
[0045] An exhaust channel is arranged on the roaster shell 10, one end of which is connected with the inside of the baking pot 20, and the other end of which extends above the rear side of the roaster shell 10;
[0046] A transparent observation window 40 is obliquely arranged on the top of the roaster shell 10 and is parallel to the upper end surface of the baking pot 20, and is used to observe the inside of the baking pot 20;
[0047] The control operation panel 30 is obliquely arranged on the top of the roasting machine shell 10 and is parallel to the upper end surface of the roasting pot 20, and the control operation panel 30 is used for controlling the hot air supply device to start or stop and is used for controlling the bean discharging door to open or close.
[0048] The transparent observation window 40 is arranged on the control operation panel 30 and is coaxially arranged with the roasting pot 20.
[0049] Specifically, in the embodiment of the utility model, the hot air supply device includes a hot air chamber 50, a heating element arranged in the hot air chamber 50 and a blower 60, the hot air chamber 50 is arranged in the roasting cavity 11, the roasting pot 20 and the hot air chamber 50 are both cylindrical structures, the bottom of the roasting pot 20 is arranged in the hot air chamber 50, the roasting pot 20 and the hot air chamber 50 are coaxially arranged, and a plurality of hot air inlets are arranged on the outer circumferential wall of the part of the roasting pot 20 that extends into the hot air chamber 50 and are in communication with the hot air chamber 50; an air inlet is arranged on the side wall of the roasting machine shell 10, an air inlet channel is arranged on the outer side wall of the hot air chamber 50 in a direction parallel to the horizontal plane, the blower 60 is arranged in the air inlet channel, and the blower 60 is used for sucking external air into the hot air chamber 50 from the air inlet. The heating element can be a heating resistor or a PTC heater.
[0050] In the embodiment of the utility model, the inclination of the roasting pot 20 towards the front of the roasting machine shell 10 is 30°. In addition, a plurality of supporting legs 13 are arranged on the bottom of the roasting machine shell 10, the whole machine is placed on the desktop through the supporting legs 13, and the bottom of the roasting machine shell 10 is isolated from the desktop.
[0051] Further, the feeding channel 22 of the embodiment of the utility model is arranged on the upper end of the rear side of the roasting machine shell 10, one end of the feeding channel 22 is connected to the upper end of the rear side of the roasting pot 20, the other end of the feeding channel 22 extends out of the upper rear side of the roasting machine shell 10, and the end of the feeding channel 22 that extends out of the upper rear side of the roasting machine shell 10 is connected to the feeding hopper 23. In addition, the exhaust channel of the embodiment of the utility model is arranged on the upper end of the rear side of the roasting machine shell 10, one end of the exhaust channel is connected to the upper end of the rear side of the roasting pot 20, the height of the end of the exhaust channel that is connected to the roasting pot 20 is higher than that of the end of the feeding channel 22 that is connected to the roasting pot 20, and the other end of the exhaust channel extends vertically upwards out of the upper rear side of the roasting machine shell 10.
[0052] Compared with the prior art, the coffee bean roaster has the following beneficial effects:
[0053] 1. Optimizing the viewing angle: by setting the angle of the roasting pot 20 towards the front of the roasting machine shell 10 to be within the range of 25° to 40°, and by setting the transparent viewing window 40 on the top of the roasting machine shell 10 to be inclined, when a user stands in front of the coffee bean roaster placed on a table, he can directly view the roasting of the beans in the roasting pot 20 from the transparent viewing window 40 on the top of the roasting machine shell 10 at a natural downward angle. In addition, the exhaust air outlet 25 of the exhaust channel of the roaster is set on the top of the rear side of the roasting machine shell 10, and the exhaust direction is vertically upward. When the user views the roasting inside the roasting pot 20 from the transparent viewing window 40 of the roasting machine shell 10, since the transparent viewing window 40 is inclined towards the front side of the roasting machine shell 10, the user does not need to stretch his head to the top of the roasting machine shell 10 to observe, avoiding the influence of the exhaust hot air on the user during observation, increasing safety and comfort.
[0054] 2. Improving the efficiency of air flow application: compared with the vertically designed roasting pot 20 in the prior art, the air flow entering the roasting pot 20 must consider the 360° range of the entire bottom of the roasting pot 20 to effectively promote the beans to jump and roll. The present application sets the angle of the roasting pot 20 towards the front of the roasting machine shell 10 to be within the range of 25° to 40°, so that the beans in the roasting pot 20 are stacked at the lowest point of the inclined bottom of the roasting pot 20 due to the effect of gravity (the lowest position at the front side), and the air inlet channel of the air blower 60 is set in a tangential position parallel to the bottom of the roasting pot 20. In this way, the air flow entering from the air blower 60 is mostly blown to the middle and lower layers of the stacked beans after being heated by the heating element, so that the beans jump and roll.
[0055] 3. Ensuring the uniformity of bean roasting and flavor retention: the inclined roasting pot 20 cooperates with the horizontal air inlet channel of the air blower 60, and cooperates with the heated bottom and inner wall of the roasting pot 20, so that the heated hot air flow easily drives the beans to rotate and roll continuously, and the beans between the surface layer and the bottom layer are continuously alternated in position. In this way, it is beneficial for the beans to uniformly contact hot air during the entire roasting process, ensuring the uniformity of bean roasting. In addition, the inclined roasting pot 20 cooperates with the horizontal air inlet channel of the air blower 60, so that the roaster of the present application can drive the beans to rotate and roll with a smaller air volume, effectively retaining the flavor of the coffee beans.
[0056] 4. Reduce the beans jump into the exhaust passage: the exhaust passage of the baking pot 20 is arranged at the top rear side of the baking pot 20, so that the beans in the baking process due to the effect of air flow in the baking pot 20 to roll jump, due to the effect of the baking pot 20 and the earth's gravity, so that the beans will only fall to the lowest point of the baking pot 20, in addition, the direction of the centrifugal force generated by the rotation of the beans is also longitudinal, which can effectively reduce the probability of beans jumping into the exhaust passage during the whole baking process;
[0057] 5. It is beneficial to automatically discharge beans: the inclined baking pot 20 makes the beans stack at the lowest point due to the earth's gravity, and the bean discharge door of the baking pot 20 is arranged at the bottom of the front side of the baking pot 20, so that when the beans in the baking pot 20 are baked, the inclined baking pot 20 is like a funnel effect, so that the beans fall along the vamp to the bean outlet 21, and the beans can be easily discharged completely without tilting the whole baking machine by artificial.
[0058] That is, the coffee bean roaster of the embodiment of the present application combines the transverse baking drum design of the large baking machine and the advantages and disadvantages of the small hot air type baking machine, and is designed by combining the advantages of the drum design and the hot air type design in uniformity, baking speed and cleanliness.
[0059] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the coffee bean roaster of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.
Claims
1. A coffee bean roaster characterized by, The coffee bean roaster comprises: a roaster shell, an interior of which is provided with a roasting cavity, and a front lower end of the roaster shell is recessed rearward to form a bean outlet space; a roasting pot, which is arranged in the roasting cavity and is inclined toward the front of the roaster shell, and an inclination of the roasting pot toward the front of the roaster shell is within a range of 25° to 40°; a front bottom of the roasting pot is provided with a bean outlet opening which is in communication with the bean outlet space, and the bean outlet opening is provided with an openable and closable bean outlet door; a hot air supply device, which is arranged in the roaster shell and is used to supply heat and air from a bottom of the roasting pot to an interior of the roasting pot; a feeding channel, which is arranged on the roaster shell, one end of which is in communication with the interior of the roasting pot, and the other end of which extends above the roaster shell; an exhaust channel, which is arranged on the roaster shell, one end of which is in communication with the interior of the roasting pot, and the other end of which extends above a rear side of the roaster shell; a transparent observation window, which is arranged on a top of the roaster shell and is parallel to an upper end surface of the roasting pot, and is used to observe the interior of the roasting pot.
2. The coffee bean roaster of claim 1, wherein, Further comprising: a control operation panel, which is arranged on the top of the roaster shell and is parallel to the upper end surface of the roasting pot, and is used to control the hot air supply device to start or stop, and is used to control the bean outlet door to open or close.
3. The coffee bean roaster according to claim 2, wherein: the transparent observation window is arranged on the control operation panel, and the transparent observation window is coaxially arranged with the roasting pot.
4. The coffee bean roaster according to claim 1, wherein: the hot air supply device comprises a hot air chamber, a heating element arranged in the hot air chamber, and a blower, the hot air chamber is arranged in the roasting cavity, the roasting pot and the hot air chamber are both cylindrical barrel structures, the bottom of the roasting pot is arranged in the hot air chamber, the roasting pot and the hot air chamber are coaxially arranged, and a plurality of hot air inlets which are in communication with the hot air chamber are arranged on an outer circumferential wall of the part of the roasting pot which extends into the hot air chamber; an air inlet is arranged on a side wall of the roaster shell, an air inlet channel is arranged on an outer side wall of the hot air chamber in a direction parallel to a horizontal plane, the blower is arranged in the air inlet channel, and the blower is used to draw external air into the hot air chamber from the air inlet.
5. The coffee bean roaster according to claim 1, wherein: the inclination of the roasting pot toward the front of the roaster shell is 30°.
6. The coffee bean roaster according to claim 1, wherein: the feeding channel is arranged on a rear upper end of the roaster shell, one end of the feeding channel is connected to an upper end of a rear side of the roasting pot, the other end of the feeding channel extends above the rear side of the roaster shell, and a feeding hopper is connected to the end of the feeding channel which extends above the rear side of the roaster shell.
7. The coffee bean roaster according to claim 1, wherein: The exhaust passage is arranged at the upper end of the rear side of the roasting shell, one end of the exhaust passage is connected with the upper end of the rear side of the roasting pan, and the height of the end of the exhaust passage connected with the roasting pan is higher than that of the end of the feeding passage connected with the roasting pan, and the other end of the exhaust passage extends vertically upward above the rear side of the roasting shell.
8. The coffee bean roaster according to claim 1, characterized in that: The bottom of the roasting shell is provided with a plurality of supporting feet.
Citation Information
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