Stirring type hot air coffee bean baking machine

Abstract

The invention discloses a stirring type hot air coffee bean baking machine which comprises a mounting support, a baking oven is arranged on one side of the mounting support, a transmission part is rotationally connected to the interior of the baking oven, a rotating plate is arranged on the transmission part, the transmission part drives the rotating plate to rotate in the baking oven and stir coffee beans, and a discharging groove is formed in one side of the bottom of the baking oven. Coffee beans are turned and stirred through the rotating plate, hot air baking is matched, uniform heating is guaranteed, baking quality is guaranteed, the coffee beans do not need to be blown and stirred through strong wind in the whole baking process, energy consumption can be effectively reduced, noise generated by the strong wind can be effectively reduced, and after baking is finished, the cover plate is opened, and the coffee beans can be baked conveniently. Under pushing of the rotating plate, coffee beans in the baking oven enter the bean containing box and are immediately cooled, continuous baking can be conducted without waiting for heat loss in the baking oven, the baking efficiency is effectively improved, and meanwhile the heat utilization rate can be increased.

Description

Technical Field

[0001] The present invention belongs to the technical field of roasting devices, and in particular relates to a stirring hot air coffee bean roaster. Background Art

[0002] Traditional small hot air roasters usually use floating air to roast coffee, using hot air to blow the beans up to ensure uniform roasting. However, the disadvantages are:

[0003] 1. It requires strong wind power, which is noisy and causes noise pollution; it is also difficult to hear the sound of coffee beans popping;

[0004] 2. In the case of strong wind, it is necessary to ensure the temperature of hot air, which requires more heat energy and high energy consumption;

[0005] 3. There is no separate cooling box inside the roaster, so the coffee can only be cooled directly in the roasting chamber. Due to the high temperature waste heat in the roasting chamber, the cooling time is longer. Due to the slow cooling time, the coffee beans will continue to develop and the coffee flavor is difficult to lock. In addition, if roasting is continuous, after the roasting chamber is cooled, roasting again requires more energy. Cooling the coffee beans in the roasting chamber will reduce the efficiency of continuous roasting.

[0006] 4. Traditional small hot air roasters often have transparent glass roasting chambers, making it difficult to sample and observe the changes in coffee beans during the roasting process. Observation is limited to looking through the glass, and the strong hot air inside the roasting chamber causes the beans to bounce up and down, making it difficult to accurately observe changes in the beans. Summary of the Invention

[0007] The present invention aims to provide a stirring hot air coffee bean roaster, aiming to solve the problems in the prior art of traditional hot air roasters such as high noise, high heat loss, low continuous roasting efficiency, and difficulty in sampling and observation.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A stirring hot air coffee bean roaster comprises a mounting bracket, a roasting box is provided on one side of the mounting bracket, a transmission member is rotatably connected to the inside of the roasting box, a rotating plate is provided on the transmission member, and the rotating plate is driven by the transmission member to rotate inside the roasting box and stir the coffee beans, a discharge chute is provided on one side of the bottom of the roasting box, a cover plate for opening and closing the discharge chute is provided on the outside of the discharge chute, the surface of the cover plate is flush with the inner wall of the roasting box, a bean box is provided at the bottom of the roasting box, and the discharge chute is opposite to the bean box.

[0010] In a preferred embodiment of the present invention, an inwardly folded inclined surface is provided on an upper side of the baking box, and the closest distance between the inclined surface and the rotating plate is 10-15 mm.

[0011] In a preferred embodiment of the present invention, a cooling assembly is provided on one side of the bean containing box, and the cooling assembly is facing the bean containing box.

[0012] In a preferred embodiment of the present invention, a front panel is provided on the front of the baking oven, an adaption slot is provided on the front panel, a mounting plate is provided at the adaption slot, the mounting plate is used to cover the opening of the baking oven, and a sampling port and an observation window are provided on the mounting plate.

[0013] In a preferred embodiment of the present invention, first mounting ears are provided on both sides of the cover plate, a material guide plate is provided at the bottom of the cover plate, second mounting ears are provided on both sides of the material guide plate, and the first mounting ear and the second mounting ear on the same side are connected by a compression spring.

[0014] In a preferred embodiment of the present invention, a rotating rod is provided on one side of the material guide plate, the rotating rod is in a Z-shape, and a clearance groove adapted to the rotating rod is provided on the front panel.

[0015] In a preferred embodiment of the present invention, the bean box is movably connected to the mounting bracket to form a drawer.

[0016] In a preferred embodiment of the present invention, a hot air inlet is opened on one side of the roasting box, an air duct is provided at the hot air inlet, and an opening of the air duct faces the coffee beans in the roasting box.

[0017] In a preferred embodiment of the present invention, a smoke exhaust port is provided on one side of the baking oven, and a smoke exhaust component is installed outside the smoke exhaust port.

[0018] In a preferred embodiment of the present invention, a feed hopper is provided above the baking oven, the feed hopper is communicated with the interior of the baking oven, and a pull-out plate is provided at the bottom of the feed hopper.

[0019] The beneficial effects of the present invention are:

[0020] 1. The roasting oven designed by the present invention is equipped with a rotating plate inside. During the rotation of the rotating plate, the coffee beans inside the roasting oven are stirred, and the high-temperature hot air is roasted. During the entire roasting process, there is no need for strong wind force to stir the coffee beans. This can effectively reduce energy consumption and the noise generated by strong wind force. The popping sound produced by the coffee beans during the roasting process can be clearly heard, and the roasting progress can be monitored to ensure the roasting quality.

[0021] 2. The entire roasting process does not require strong wind power, so a sampling port can be opened on the mounting plate. The sampling port is used to install a sampler, which extends into the interior of the roasting box through the sampling port to take samples. Through sampling, you can intuitively understand the roasting status of the coffee beans and ensure the roasting quality. There is no need to worry about heat loss due to sampling or coffee beans being ejected from the sampling port after the wind is diverted.

[0022] 3. The roasting box designed by the present invention is provided with a bean receiving box at the bottom. After roasting is completed, the cover is opened. Under the action of the rotating plate, the coffee beans inside the roasting box can enter the bean receiving box. The bean receiving box is movably connected to the mounting bracket to form a drawer. After the coffee beans enter the bean receiving box, the cooling component is started, and the cold air fan provides suction to absorb the heat energy of the coffee beans and immediately cool the coffee beans inside the bean receiving box, thereby preventing the residual heat of the coffee beans from continuing to roast and causing the problem of over-roasting of the coffee beans, thereby ensuring the roasting quality of the coffee beans. During the entire cooling process, the roasting box does not need to be occupied, and continuous roasting can be carried out without waiting for the heat inside the roasting box to dissipate. This effectively improves the roasting efficiency and the heat utilization rate.

[0023] 4. The rotating plate designed in the present invention is used to stir the coffee beans inside the roasting box. During the stirring process, the coffee beans will accumulate on the upper side of the roasting box under the action of their own gravity, causing uneven roasting. By providing an inwardly folded inclined surface on the upper side of the roasting box, the interaction between the inclined surface and the rotating plate changes the original movement trajectory of the coffee beans, reducing the influence of the coffee beans' own gravity, preventing coffee bean accumulation, and making the stirring more uniform, thereby avoiding the problem of uneven heating of the coffee beans.

[0024] 5. The smoke exhaust port of the present invention is equipped with a smoke exhaust assembly on the outside. The exhaust fan is used to extract smoke, water vapor and silver skin from the baking oven. The silver skin is drawn into the silver skin collection box under the action of the filter and its own gravity for unified treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of a stirring hot air coffee bean roaster provided in Example 1 of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the cover provided in Example 1 of the present invention when it is closed;

[0027] Figure 3 A schematic structural diagram of a stirring hot air coffee bean roaster from another perspective provided by Example 1 of the present invention;

[0028] Figure 4 A front cross-sectional view of a stirring hot air coffee bean roaster provided in Example 1 of the present invention;

[0029] Figure 5A front view of a stirring hot air coffee bean roaster provided in Example 1 of the present invention;

[0030] Figure 6 A partial schematic diagram of a stirring hot air coffee bean roaster provided in Example 1 of the present invention;

[0031] Figure 7 A rear view of a stirring hot air coffee bean roaster provided in Example 1 of the present invention;

[0032] Figure 8 A front cross-sectional view of a stirring hot air coffee bean roaster provided in Example 2 of the present invention;

[0033] Figure 9 This is a front cross-sectional view of a stirring hot air coffee bean roaster provided in Example 3 of the present invention.

[0034] Reference numerals;

[0035] Among them: D-mounting bracket; X-inclined surface; 1-baking box; 2-transmission part; 3-rotating plate; 4-cover plate; 5-sampling port; 6-bean box; 7-hot air inlet; 8-smoke outlet; 9-feed hopper; 10-front panel; 11-mounting plate; 12-observation window; 13-compression spring; 14-material guide plate; 15-rotating rod; 16-air guide duct. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0037] Example 1:

[0038] like Figure 1-6 As shown, this embodiment provides a stirring hot air coffee bean roaster, including a mounting bracket D, a roasting box 1 is provided on one side of the mounting bracket D, and a transmission member 2 is rotatably connected to the inside of the roasting box 1. A rotating plate 3 is provided on the transmission member 2, and the rotating plate 3 is driven by the transmission member 2 to rotate inside the roasting box 1 and stir the coffee beans. A discharge chute is provided on one side of the bottom of the roasting box 1, and a cover plate 4 for opening and closing the discharge chute is provided on the outside of the discharge chute. The surface of the cover plate 4 is flush with the inner wall of the roasting box 1, and a bean box 6 is provided at the bottom of the roasting box 1, and the discharge chute is opposite to the bean box 6.

[0039] Specifically, such as Figure 1-2As shown, the roasting box 1 is located above the mounting bracket D. A power assembly is provided on the outside of the roasting box 1. The power assembly can be a motor or other component that can provide power. Taking the motor as an example, the output shaft of the motor passes through the roasting box 1 and is connected to the transmission member 2. The motor provides power to drive the transmission member 2 to rotate clockwise, and the transmission member 2 drives the rotating plate 3 to rotate clockwise. After roasting is completed, the cover 4 is opened. Driven by the rotating plate 3, the coffee beans inside the roasting box 1 pass through the discharge chute into the bean box 6.

[0040] Furthermore, during the entire roasting process, the coffee beans inside the roasting box 1 are stirred by the rotating plate 3, and there is no need for strong wind force to stir the coffee beans, which can reduce energy consumption and noise, and can also ensure that the coffee beans are heated evenly, thereby ensuring the roasting quality.

[0041] In one solution, an inwardly folded inclined surface X is provided on the upper side of the baking box 1 , and the closest distance between the inclined surface X and the rotating plate 3 is 10-15 mm.

[0042] Specifically, such as Figure 3 As shown, in order to facilitate the discharge of materials from one side of the bottom of the roasting box 1, one side of the roasting box 1 is designed as a vertical structure. In order to ensure uniform roasting of the coffee beans, an inclined plane X is provided above the vertical structure. During the process of stirring the coffee beans with the rotating plate 3, the coffee beans will accumulate above the vertical structure under the action of their own gravity. The inclined plane X is provided above the vertical structure. The inclined plane X and the rotating plate 3 cooperate with each other to change the original movement trajectory of the coffee beans, reduce the influence of the coffee beans' own gravity, avoid coffee bean accumulation, and make stirring more uniform, thereby avoiding the problem of uneven heating of the coffee beans. The closest distance between the inclined plane X, the vertical structure and the rotating plate 3 is controlled to be 10-15 mm, which can effectively prevent bean jamming.

[0043] In one solution, a cooling assembly is provided on one side of the bean container 6 , and the cooling assembly faces the bean container 6 .

[0044] Specifically, the cooling component is used to quickly cool the coffee beans. In this embodiment, the cooling component adopts a cold air fan, which is mounted on a mounting bracket D. The mounting bracket D is provided with a plurality of ventilation holes. One side of the bean box 6 is provided with an adapter hole adapted to the ventilation holes. The ventilation holes and the adapter hole are interconnected. When the cold air fan is working, it directly acts on the coffee beans, takes away the heat energy of the coffee beans, and quickly cools the coffee beans, thereby avoiding the problem of over-roasting of the coffee beans caused by the residual heat of the coffee beans during continued roasting, thereby ensuring the roasting quality of the coffee beans.

[0045] In one of the solutions, Figure 3 As shown, the radial length of the discharge chute is less than or equal to the radial length of the roasting box 1. Under the action of the rotating plate 3, all the coffee beans inside the roasting box 1 can enter the bean box 6, achieving the technical effect of facilitating the discharge of beans.

[0046] In one of the solutions, a front panel 10 is provided on the front of the baking oven 1. An adapting groove is provided on the front panel 10. A mounting plate 11 is provided at the adapting groove. The mounting plate 11 is used to cover the opening of the baking oven 1. The mounting plate 11 is provided with a sampling port 5 and an observation window 12.

[0047] Specifically, such as Figure 1-2 As shown, the mounting plate 11 is detachably connected to the front panel 10, and the mounting plate 11 is used to cover the roasting box 1. The sampling port 5 is used to install a sampler. The sampler can adopt a sampler in the prior art, which will not be described in detail here. Transparent quartz glass is installed at the observation window 12 to facilitate observation of the roasting condition inside the roasting box 1. When necessary, the sampler is inserted into the roasting box 1 through the sampling port 5 to take samples. The sampling can intuitively understand the roasting condition of the coffee beans and ensure the roasting quality.

[0048] In one of the solutions, first mounting ears are provided on both sides of the cover plate 4, a material guide plate 14 is provided at the bottom of the cover plate 4, second mounting ears are provided on both sides of the material guide plate 14, and the first mounting ear and the second mounting ear on the same side are connected by a compression spring 13.

[0049] Specifically, such as Figure 1 、 Figure 3 As shown, a tightening component is provided on the outside of the cover plate 4, which is used to tighten the cover plate 4 when the cover plate 4 covers the discharge chute, so that the cover plate 4 fits tightly with the discharge chute. The tightening component can be a compression spring 13 or other components that can achieve the tightening function. Taking the compression spring 13 as an example, Figure 6 As shown, one end of the two compression springs 13 is connected to the two first mounting ears respectively, and two bolts are used to pass through the other ends of the two compression springs 13 and the second mounting ears in sequence to connect the two compression springs 13 to the mounting bracket D and the front panel 10 respectively.

[0050] Furthermore, the working principle of the top tightening assembly is: when the cover plate 4 covers the discharge chute, Figure 2 As shown, under the action of the compression spring 13 restoring its deformation, the compression spring 13 is tightened, and the lower end of the cover 4 is pressed against the baking box 1, so that the cover 4 is tightly fitted to the baking box 1. At this time, the inner surface of the cover 4 is flush with the inner wall of the baking box 1. When the cover 4 is opened, as shown in FIG. Figure 1 、 Figure 3 and Figure 4 As shown, the bottom of the cover plate 4 contacts the guide plate 14, and the coffee beans inside the roasting box 1 enter the bean box 6 through the discharge chute. The guide plate 14 can play a role in guiding the coffee beans.

[0051] In one solution, a rotating rod 15 is provided on one side of the guide plate 14 . The rotating rod 15 is in a Z-shape, and a clearance groove adapted to the rotating rod 15 is provided on the front panel 10 .

[0052] Specifically, such as Figure 5 As shown, the clearance groove makes one side of the front panel 10 open, and the clearance groove is arc-shaped to adapt to the movement trajectory of the rotating rod 15 to avoid movement interference. At the same time, the position of the cover plate 4 is limited by the joint action of the clearance groove, the compression spring 13 and the guide plate 14, as shown in FIG. Figure 1-2 As shown, the rotating rod 15 is used to rotate the cover plate 4 so that the cover plate 4 opens and closes the discharge chute.

[0053] In one solution, the bean container 6 is movably connected to the mounting bracket D to form a drawer.

[0054] Specifically, such as Figure 1 As shown, a clearance hole adapted to the bean box 6 is provided on the front panel 10 to facilitate the entry and exit of the bean box 6.

[0055] In one solution, a hot air inlet 7 is provided on one side of the roasting box 1 , and an air duct 16 is provided at the hot air inlet 7 , with the opening of the air duct 16 facing the coffee beans in the roasting box 1 .

[0056] Specifically, such as Figure 4 As shown, the hot air inlet 7 is used to install the air duct 16. In this embodiment, the air duct 16 can be made of 304 stainless steel. One end of the air duct 16 is connected to an external heat source, which is used to provide heat for roasting coffee beans. The other end of the air duct 16 extends into the interior of the roasting box 1, and its opening is facing the coffee beans inside the roasting box 1. In this embodiment, the heat source is a metal heating wire, which is located inside the end of the air duct 16 away from the roasting box 1. An air intake fan is provided at the bottom of the end of the air duct 16 away from the roasting box 1. The air intake fan provides power to send external cold air into the air duct 16. The metal heating wire provides heat to heat the cold air. The air intake fan sends the heated hot air into the roasting box 1 for roasting coffee beans.

[0057] In one solution, a smoke exhaust port 8 is provided on one side of the baking oven 1 , and a smoke exhaust component is installed on the outer side of the smoke exhaust port 8 .

[0058] Specifically, the smoke exhaust port 8 is opened at the upper rear of the mounting bracket D, on one side of the hot air inlet 7. The smoke exhaust assembly includes a first mounting cavity, which is mounted on the mounting bracket D. One side of the first mounting cavity is connected to the interior of the baking oven 1 through the smoke exhaust port 8. A filter is provided on the other side of the first mounting cavity. A second mounting cavity is provided on the side of the first mounting cavity away from the smoke exhaust port. The second mounting cavity is used to install an exhaust fan, and the filter is located between the smoke exhaust port and the exhaust fan. A silver skin collection box is provided below the first mounting cavity, and the first mounting cavity and the silver skin collection box are connected to each other.

[0059] The working principle of the smoke exhaust component is: the exhaust fan provides power to extract the smoke, water vapor and silver skin inside the baking box 1. Under the action of the filter and its own gravity, the silver skin enters the silver skin collection box for unified collection and processing. The smoke and water vapor are discharged through the filter to ensure baking efficiency and baking quality.

[0060] In one solution, a feed hopper 9 is provided above the baking box 1 , the feed hopper 9 is communicated with the interior of the baking box 1 , and a pull-out plate is provided at the bottom of the feed hopper 9 .

[0061] Specifically, such as Figure 4 As shown, coffee beans enter the roasting box 1 through the feed hopper 9, and the pull-out plate is used to open and close the connection between the roasting box 1 and the feed hopper 9.

[0062] The coffee beans are roasted in a hot air stirring manner and the coffee beans are roasted in a hot air stirring manner. The problem of unevenness can be solved, and the roasting progress can be understood by the popping sound produced by the coffee beans. The sampler can also be used to take samples, and the roasting status of the coffee beans can be intuitively understood through sampling, which further ensures the roasting quality and roasting efficiency. There is no need to worry about the loss of heat energy due to sampling and the problem of coffee beans being ejected from the sampling port 5 after the wind is diverted. During the roasting process, the exhaust fan provides power to extract the smoke, water vapor and silver skin inside the roasting box. The silver skin enters the silver skin collection box under the action of the filter and its own gravity. After the roasting is completed, the cover 4 is opened, and under the action of the rotating plate 3, the coffee beans inside the roasting box 1 can enter the bean box 6, and the cooling component is started. The cold air fan provides suction to take away the heat of the coffee beans and immediately cool the coffee beans inside the bean box 6 to avoid the residual heat of the coffee beans from continuing to roast. After the coffee beans enter the bean box 6, they can be continuously roasted without waiting for the heat inside the roasting box 1 to dissipate, which effectively improves the roasting efficiency and also improves the heat utilization rate.

[0063] Example 2

[0064] The difference from Example 1 is that the discharge chute is located on one side of the baking box 1, as shown in FIG. Figure 8 As shown, the discharge chute is opened below the inclined surface X. When roasting is completed, the cover 4 is opened. Under the action of the rotating plate 3, the coffee beans inside the roasting box 1 enter the bean box 6 through the discharge chute and the guide plate 14.

[0065] Example 3

[0066] The difference from Example 1 is that the smoke exhaust port 8 is opened on one side of the baking oven 1. Figure 9 As shown, the smoke exhaust port 8 is located above the inclined plane X, and a smoke exhaust component is installed on the outer side of the smoke exhaust port 8. The structure of the smoke exhaust component is consistent with that of the smoke exhaust component in Example 1.

[0067] It should be noted that the specific models and specifications of the motor, air intake fan, metal heating wire, cold air fan and exhaust fan need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0068] The power supply and principles of the motor, air intake fan, metal heating wire, cold air fan and exhaust fan are clear to those skilled in the art and will not be described in detail here.

[0069] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A stirring hot air coffee bean roaster, comprising a mounting bracket (D), characterized in that: A baking box (1) is provided on one side of the mounting bracket (D), and a transmission member (2) is rotatably connected to the inside of the baking box (1). A rotating plate (3) is provided on the transmission member (2), and the rotating plate (3) is driven by the transmission member (2) to rotate inside the baking box (1) and stir the coffee beans. A discharge chute is provided on one side of the bottom of the baking box (1), and a cover plate (4) for opening and closing the discharge chute is provided on the outside of the discharge chute, and the surface of the cover plate (4) is flush with the inner wall of the baking box (1). A bean box (6) is provided at the bottom of the baking box (1), and the discharge chute is directly opposite to the bean box (6).

2. The stirring hot air coffee bean roaster according to claim 1, characterized in that: An inwardly folded inclined surface (X) is provided on one upper side of the baking box (1), and the closest distance between the inclined surface (X) and the rotating plate (3) is 10-15 mm.

3. The stirring hot air coffee bean roaster according to claim 1, characterized in that: A cooling component is provided on one side of the bean containing box (6), and the cooling component faces the bean containing box (6).

4. The stirring hot air coffee bean roaster according to claim 1, characterized in that: The front of the baking oven (1) is provided with a front panel (10), an adapting slot is provided on the front panel (10), a mounting plate (11) is provided at the adapting slot, the mounting plate (11) is used to cover the opening of the baking oven (1), and a sampling port (5) and an observation window (12) are provided on the mounting plate (11).

5. The stirring hot air coffee bean roaster according to claim 4, characterized in that: Both sides of the cover plate (4) are provided with first mounting ears, a material guide plate (14) is provided at the bottom of the cover plate (4), and both sides of the material guide plate (14) are provided with second mounting ears, and the first mounting ear and the second mounting ear on the same side are connected by a compression spring (13).

6. The stirring hot air coffee bean roaster according to claim 5, characterized in that: A rotating rod (15) is provided on one side of the guide plate (14), and the shape of the rotating rod (15) is Z-shaped. A clearance groove adapted to the rotating rod (15) is provided on the front panel (10).

7. The stirring hot air coffee bean roaster according to claim 1, characterized in that: The bean container (6) is movably connected to the mounting bracket (D) to form a drawer-type structure.

8. The stirring hot air coffee bean roaster according to claim 1, characterized in that: A hot air inlet (7) is provided on one side of the baking box (1), and an air duct (16) is provided at the hot air inlet (7), and the opening of the air duct (16) faces the coffee beans in the baking box (1).

9. The stirring hot air coffee bean roaster according to claim 1, characterized in that: A smoke exhaust port (8) is provided on one side of the baking box (1), and a smoke exhaust component is installed on the outside of the smoke exhaust port (8).

10. The stirring hot air coffee bean roaster according to claim 1, characterized in that: A feed hopper (9) is provided above the baking box (1), the feed hopper (9) is communicated with the interior of the baking box (1), and a pull-out plate is provided at the bottom of the feed hopper (9).

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