A cocoa bean roasting apparatus

By designing a drive unit to rotate the roasting cylinder and combining it with a bearing and gear transmission system, the problem of inefficient loading and unloading of coffee bean roasting equipment at high temperatures has been solved, enabling efficient and continuous roasting of cocoa beans.

CN224473948UActive Publication Date: 2026-07-10SPICE & BEVERAGE RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-11
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing coffee bean roasting equipment struggles to achieve efficient loading and unloading at high temperatures, resulting in low efficiency in continuous roasting operations.

Method used

A cocoa bean roasting device was designed, which uses a drive device to rotate and heat the roasting cylinder. Combined with a bearing and gear transmission system, it enables the roasting cylinder to be flexibly flipped and sealed, facilitating efficient loading and unloading of cocoa beans.

Benefits of technology

It enables rapid and safe loading and unloading operations at high temperatures, improving the continuity and efficiency of cocoa bean roasting and reducing the labor intensity and risk of burns for operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cocoa bean baking device, including the case and the protective cover, the case with the protective cover articulates, be equipped with the heating pipe in the case, be equipped with the drive arrangement in the case, be equipped with the baking cylinder on the output of drive arrangement, the baking cylinder is located the top of heating pipe, be equipped with truss on the baking cylinder, be equipped with the bearing between the baking cylinder with truss, articulate between truss with the case, be equipped with handle on the baking cylinder, the first gear is equipped with on the handle, the first gear with drive arrangement is connected, one end of baking cylinder is equipped with the discharge gate, be equipped with the first closure on the discharge gate, the other end of baking cylinder is equipped with the feeding port, be equipped with the second closure on the discharge gate. The utility model has solved the problem that the efficient feeding and discharging in the baking process are difficult to realize in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of cocoa bean processing technology, and in particular to a cocoa bean roasting device. Background Technology

[0002] Cocoa is one of the world's three major beverage plants. Its fruit, the cocoa bean, is rich in nutrients, containing various proteins, fats, starches, vitamin B, and a small amount of theobromine. It has stimulating, nourishing, and cognitive-enhancing effects, regulates heart function, dilates renal blood vessels, and has a diuretic effect. It is also the main raw material for making chocolate and can be used to make beverages, pastries, and ice cream. The unique flavor of cocoa beans needs to be activated under high temperatures, so cocoa beans are usually roasted before being processed into finished products. Since cocoa beans and coffee beans are similar products, both require fermentation, drying, and roasting processes during preparation. In the roasting process, operators use coffee roasting equipment to process cocoa beans. Therefore, the existing Chinese patent publication number CN219813154U discloses a coffee bean roasting and stirring mechanism. This mechanism involves mounting a rotating cylinder on a short rod, rotating a long rod to drive the short rod to rotate, adjusting the angle of the rotating cylinder to keep it away from the heat source, and removing the rotating cylinder from the short rod and opening the cylinder by rotating the cylinder cover to perform feeding and discharging operations. This solves the technical problem of facilitating rapid feeding and discharging of coffee beans.

[0003] The baking drum in the above-mentioned equipment is at a high temperature after being heated. It needs to be cooled down to room temperature before the baking drum can be opened for loading and unloading. To address this issue, the operator uses heat-resistant gloves. However, heat-resistant gloves are quite thick, making it difficult to open the baking drum. This process is time-consuming and laborious, making it difficult to achieve efficient and continuous baking operations. Utility Model Content

[0004] The purpose of this invention is to solve the problem of efficient loading and unloading of materials during the baking process, which is difficult to achieve in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cocoa bean roasting apparatus includes a casing and a protective cover. The casing and the protective cover are hinged together. A heating tube is installed inside the casing. A drive device is installed inside the casing. A roasting cylinder is installed at the output end of the drive device. The roasting cylinder is located above the heating tube. A truss is installed on the roasting cylinder. A bearing is installed between the roasting cylinder and the truss. The truss is hinged to the casing. A handle is installed on the roasting cylinder. A first gear is fitted on the handle. The first gear is connected to the drive device. A feeding port is provided at one end of the roasting cylinder. A first cap is provided on the feeding port. A feeding port is provided at the other end of the roasting cylinder. A second cap is provided on the feeding port.

[0007] Preferably, the baking cylinder is provided with a stirring blade, the stirring blade is spiral-shaped, and the stirring blade is connected to the inner wall of the baking cylinder.

[0008] Preferably, the first cover is threadedly connected to the discharge port, the first cover has a first slot, the first slot has a first knob, the first knob is connected to the first slot, the second cover is threadedly connected to the feed port, the second cover has a second slot, the second slot has a second knob, the second knob is connected to the second slot.

[0009] Preferably, the drive device includes a motor located inside the housing, the motor being electrically connected to an external power source, a first synchronous pulley on the motor output shaft, a second synchronous pulley on one side of the first synchronous pulley, a synchronous belt between the first and second synchronous pulleys, a worm gear on the second synchronous pulley connected to the housing, a worm wheel on the worm gear meshing with the worm gear, a shaft on the worm wheel connected to the housing, and a second gear on the shaft meshing with the first gear.

[0010] Preferably, the first gear and the second gear are bevel gears.

[0011] Preferably, a rotating component is provided between the handle and the chassis. The rotating component includes a bracket, which is engaged with the chassis wall. The bracket has a mounting groove, and a plurality of ball bearings are provided in the mounting groove. The ball bearings are connected to the handle.

[0012] The beneficial effects proposed by this utility model are as follows:

[0013] The operator opens the second cover and adds cocoa beans into the roasting cylinder through the feed inlet. The second cover is then closed to seal the feed inlet. After feeding the cocoa beans, the first gear is connected to the drive device, and the protective cover is closed. Finally, the power is turned on, energizing the drive device and the heating element. The drive device rotates the roasting cylinder via the first gear. Due to the bearings, the roasting cylinder rotates relative to the chassis, while the heating element continuously heats the cylinder, ensuring thorough heating of the cocoa beans inside. After roasting, the drive device and heating element are de-energized, the protective cover is opened, and the first cover is opened. The operator then uses the handle to rotate the roasting cylinder, tilting the feed inlet downwards. The cocoa beans can then be fed through the feed inlet, which is then sealed again by the first cover. This process achieves efficient feeding and discharging of cocoa beans, improving the efficiency of continuous roasting operations. Attached Figure Description

[0014] Figure 1 This utility model proposes a three-dimensional cocoa bean roasting device. Figure 1 ;

[0015] Figure 2 This utility model proposes a three-dimensional cocoa bean roasting device. Figure 2 ;

[0016] Figure 3 A perspective view of the drive device for a cocoa bean roasting apparatus proposed in this utility model;

[0017] Figure 4 This is a side sectional view of the roasting cylinder of a cocoa bean roasting device proposed in this utility model;

[0018] Figure 5 This is a perspective view of the roasting cylinder of a cocoa bean roasting device proposed in this utility model;

[0019] Figure 6 This is a schematic diagram showing the connection between the roasting cylinder and the casing of a cocoa bean roasting device proposed in this utility model;

[0020] Figure 7 This is a perspective view of the rotating component of a cocoa bean roasting device proposed in this utility model.

[0021] In the diagram: 1. Chassis; 2. Protective cover; 3. Heating element; 4. Baking cylinder; 5. Truss; 6. Bearing; 7. Handle; 8. First gear; 9. Discharge port; 10. Feed port; 11. First cover; 12. Second cover; 13. Stirring blade; 14. First slot; 15. First handle; 16. Second slot; 17. Second handle; 18. Motor; 19. First synchronous pulley; 20. Second synchronous pulley; 21. Synchronous belt; 22. Worm gear; 23. Worm wheel; 24. Second gear; 25. Shaft; 26. Rotating component; 27. Bracket; 28. Mounting slot; 29. ​​Ball bearing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1 to 7A cocoa bean roasting apparatus includes a housing 1 and a protective cover 2. The housing 1 and the protective cover 2 are hinged together. A heating tube 3 is provided inside the housing 1. A driving device is provided inside the housing 1. A roasting cylinder 4 is provided on the output end of the driving device. The roasting cylinder 4 is located above the heating tube 3. A truss 5 is provided on the roasting cylinder 4. A bearing 6 is provided between the roasting cylinder 4 and the truss 5. The truss 5 is hinged to the housing 1. A handle 7 is provided on the roasting cylinder 4. A first gear 8 is sleeved on the handle 7. The first gear 8 is connected to the driving device. A feeding port 9 is provided at one end of the roasting cylinder 4. A first cover 11 is provided on the feeding port 9. A feeding port 10 is provided at the other end of the roasting cylinder 4. A second cover 12 is provided on the feeding port 10. Specifically, the operator opens the second cover 12 and adds cocoa beans into the roasting cylinder 4 through the feed inlet 10. The second cover 12 is then closed to seal the feed inlet 10. After feeding the cocoa beans, the first gear 8 is connected to the drive device, and the protective cover 2 is closed. Finally, the power is turned on, energizing the drive device and the heating tube 3. This causes the drive device to rotate the roasting cylinder 4 via the first gear 8. Due to the bearing 6, the roasting cylinder 4 can rotate relative to the housing 1, while the heating tube 3 continuously heats the roasting cylinder 4, ensuring thorough heating of the cocoa beans inside. After roasting, the drive device and heating tube 3 are de-energized, the protective cover 2 is opened, and the first cover 11 is opened. The operator then uses the handle 7 to rotate the roasting cylinder 4, tilting the feed inlet 9 downwards. The cocoa beans can then be fed through the feed inlet 9, which is then sealed again by the first cover 11. Through the above process, efficient loading and unloading of cocoa beans is achieved, improving the efficiency of continuous roasting operations.

[0024] Specifically, the roasting cylinder 4 is equipped with a stirring blade 13, which is spiral-shaped and connected to the inner wall of the roasting cylinder 4. When the roasting cylinder 4 rotates for roasting, the cocoa beans are broken up by the stirring blade 13, which can improve the heating efficiency of the cocoa beans and improve the roasting effect. At the same time, the spiral shape of the stirring blade 13 can provide a guiding function when the roasting cylinder 4 is filled, making it easier for the cocoa beans to be discharged from the discharge port 9 and reducing the risk of discharge blockage.

[0025] Specifically, the first cover 11 is threadedly connected to the feed port 9, the first cover 11 is provided with a first slot 14, the first slot 14 is provided with a first handle 15, the first handle 15 is connected to the first slot 14, the second cover 12 is threadedly connected to the feed port 10, the second cover 12 is provided with a second slot 16, the second slot 16 is provided with a second handle 17, the second handle 17 is connected to the second slot 16. When the roasting cylinder 4 is in a sealed state, the first cap 11 is threadedly connected to the discharge port 9, and the second cap 12 is threadedly connected to the feed port 10. When the cocoa beans have finished roasting, the first handle 15 is connected to the first slot 14, and then the first handle 15 is rotated to open the first cap 11. During roasting, the first handle 15 is separated from the first slot 14. Similarly, the second handle 17 controls the opening and closing of the feed port 10 through the second cap 12, and during the roasting process, the second handle 17 is separated from the second slot 16. This further enables the loading and unloading of the roasting cylinder 4 within a short time after the roasting operation is completed, while also providing heat insulation to reduce the risk of burns. During the operation of the first cap 11 and the second cap 12, the operator needs to hold the handle 7 for easy application of force.

[0026] Specifically, the drive device includes a motor 18 located inside the housing 1 and electrically connected to an external power source. A first synchronous pulley 19 is mounted on the output shaft of the motor 18, and a second synchronous pulley 20 is mounted on one side of the first synchronous pulley 19. A synchronous belt 21 is provided between the first synchronous pulley 19 and the second synchronous pulley 20. A worm gear 22 is mounted on the second synchronous pulley 20 and connected to the housing 1. A worm wheel 23 is mounted on the worm gear 22 and meshes with it. A rotating shaft 25 is mounted on the worm wheel 23 and connected to the housing 1. A second gear 24 is mounted on the rotating shaft 25 and meshes with the first gear 8. When the operator starts the external power supply, the external power supply drives the output shaft of the motor 18, causing the first synchronous pulley 19 to rotate. This rotation is connected by the synchronous belt 21, causing the second synchronous pulley 20 to rotate synchronously. The second synchronous pulley 20 is mounted on the worm gear 22, which rotates synchronously with the output shaft of the motor 18. The worm gear 22 meshes with the worm wheel 23, transmitting the power output from the motor 18 to the rotating shaft 25. The rotating shaft 25 drives the second gear 24 to rotate, and finally, through the meshing of the second gear 24 with the first gear 8, it drives the roasting cylinder 4 to rotate. This process achieves rotational heating of the roasting cylinder 4, improving the roasting effect of the cocoa beans and ensuring even heating. Furthermore, the structure of the worm gear 22 and the worm wheel 23 has a large transmission ratio, and is therefore often used to achieve a speed reduction function. In this drive device, the output speed of the motor 18 can be reduced, thus reducing the speed of the roasting cylinder 4 and allowing the cocoa beans inside the roasting cylinder 4 to be fully heated.

[0027] Specifically, the first gear 8 and the second gear 24 are bevel gears. When the baking cylinder 4 is flipped downwards and the first gear 8 and the second gear 24 mesh, if the first gear 8 and the second gear 24 were spur gears, the flipping path would easily cause difficulties in gear meshing, resulting in tooth damage. Therefore, bevel gears are used. When the baking cylinder 4 is flipped downwards, the axes of the first gear 8 and the second gear 24 are perpendicular to each other. At this time, the meshing lines of the first gear 8 and the second gear 24 coincide, and the meshing effect is better than that of spur gears, reducing tooth damage caused by tooth jamming.

[0028] Specifically, a rotating component 26 is provided between the handle 7 and the housing 1. The rotating component 26 includes a bracket 27, which engages with the wall of the housing 1. The bracket 27 has a mounting groove 28 containing several ball bearings 29, which are connected to the handle 7. The bracket 27 is semi-circular, facilitating the rotation of the baking cylinder 4. When the baking cylinder 4 is rotated to connect with the drive device, the handle abuts against the ball bearings 29. Since the ball bearings 29 are rolling within the mounting groove 28, when the baking cylinder 4 rotates the handle, it causes the ball bearings 29 to roll, thus rotating the baking cylinder 4 relative to the housing 1 and improving rotation efficiency.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cocoa bean roasting apparatus, comprising a casing and a protective cover, characterized in that: The chassis is hinged to the protective cover. A heating tube is installed inside the chassis. A drive device is installed inside the chassis. A baking cylinder is installed on the output end of the drive device. The baking cylinder is located above the heating tube. A truss is installed on the baking cylinder. A bearing is installed between the baking cylinder and the truss. The truss is hinged to the chassis. A handle is installed on the baking cylinder. A first gear is fitted on the handle. The first gear is connected to the drive device. A feeding port is provided at one end of the baking cylinder. A first cover is provided on the feeding port. A feeding port is provided at the other end of the baking cylinder. A second cover is provided on the feeding port.

2. The cocoa bean roasting apparatus according to claim 1, characterized in that: The baking cylinder is equipped with a stirring blade, which is spiral-shaped and connected to the inner wall of the baking cylinder.

3. The cocoa bean roasting apparatus according to claim 1, characterized in that: The first cover is threadedly connected to the discharge port. The first cover has a first slot and a first knob. The first knob is connected to the first slot. The second cover is threadedly connected to the feed port. The second cover has a second slot and a second knob. The second knob is connected to the second slot.

4. The cocoa bean roasting apparatus according to claim 1, characterized in that: The drive device includes a motor located inside the housing and electrically connected to an external power source. A first synchronous pulley is provided on the output shaft of the motor, and a second synchronous pulley is provided on one side of the first synchronous pulley. A synchronous belt is provided between the first and second synchronous pulleys. A worm gear is provided on the second synchronous pulley and connected to the housing. A worm wheel is provided on the worm gear and meshes with the worm gear. A rotating shaft is provided on the worm wheel and connected to the housing. A second gear is provided on the rotating shaft and meshes with the first gear.

5. The cocoa bean roasting apparatus according to claim 4, characterized in that: The first gear and the second gear are bevel gears.

6. The cocoa bean roasting apparatus according to claim 1, characterized in that: A rotating component is provided between the handle and the chassis. The rotating component includes a bracket, which is engaged with the chassis wall. The bracket has a mounting groove, and a plurality of ball bearings are provided in the mounting groove. The ball bearings are connected to the handle.

Citation Information

Patent Citations

  • Coffee bean baking and stirring mechanism

    CN219813154U