A coffee bean hulling apparatus
By designing a cam and fan system for the coffee bean hulling device, the problem of reduced friction space caused by coffee bean accumulation was solved, achieving automatic separation and efficient hulling of coffee beans from their shells, thus improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YIKA FOOD TECH CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-07-24
AI Technical Summary
Existing coffee bean hulling devices cause bean accumulation when a large number of coffee beans are fed in at once, resulting in reduced friction space and incomplete removal of some coffee bean husks.
A coffee bean dehulling device was designed. The intermittent feeding of coffee beans is controlled by a cam, a connecting plate, a long rod and a baffle. Combined with a fan and a baffle plate, the coffee beans are automatically separated from their shells. This ensures that the amount of coffee beans entering the processing box each time is appropriate, and the fan blows the lightweight shells to separate them.
It effectively prevents coffee beans from piling up, ensures good hulling results every time, and achieves automatic separation of coffee beans from their shells, simplifying subsequent operations and improving work efficiency.
Smart Images
Figure CN224539381U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coffee bean dehulling devices, specifically a coffee bean dehulling device. Background Technology
[0002] Coffee trees are evergreen shrubs belonging to the Rubiaceae family. The coffee we drink daily is made from coffee beans using various brewing equipment. Coffee beans are the kernels inside the fruit of the coffee tree, which are then roasted using appropriate roasting methods. After initial processing, the surface of the coffee beans is covered with an outer shell, which needs to be removed before further processing. The conventional dehulling device now uses the friction between the roller and the outside of the internal rotating column to remove the outer shell of the coffee beans.
[0003] Currently, during the hulling process of coffee beans, in order to facilitate workers, a batch of coffee beans is directly put into the hulling machine. This results in a large accumulation of coffee beans at the top of the hulling machine at one time. When the beans are hulled later in the hulling machine, the space for mutual compression and friction between the beans is reduced. Some coffee beans may be blocked by other beans and cannot fully contact the hulling parts, resulting in incomplete removal of the outer shell. Utility Model Content
[0004] In order to solve the above problems, the purpose of this utility model is to provide a coffee bean shelling device.
[0005] To solve the above technical problems, this utility model adopts the following technical solution: a coffee bean hulling device, including a processing box, the processing box being cylindrical in shape, with multiple annularly distributed extrusion plates fixed inside the processing box, a rotating column inside the processing box, and annularly distributed and equally spaced extrusion blocks on the outer wall of the rotating column, a feeding hopper fixed at the top of the processing box, the top of the rotating column being conical, and an inverted conical discharge hopper fixed inside the feeding hopper, with a discharge groove between the bottom of the discharge hopper and the rotating column. Inside the hopper, at the discharge chute, are two symmetrically arranged, semi-circular baffles. Two symmetrically arranged long rods are fixed to the middle end of the baffles, and the long rods penetrate the feed hopper. A support plate is fixed to the outer wall of the feed hopper at the middle position of the two long rods. A rotating shaft is rotatably mounted on the support plate, and a cam is fixed on the rotating shaft. A connecting plate is fixed to one end of the two long rods that penetrate the feed hopper. The cam abuts against the connecting plate. A return spring is sleeved on the end of the long rod outside the feed hopper, and the two ends of the return spring are fixedly connected to the connecting plate and the outer wall of the feed hopper, respectively.
[0006] Preferably, a base plate is fixedly provided on the outer wall of the feed hopper near the two rotating shafts, and a drive shaft is rotatably provided on the base plate. The two adjacent drive shafts are connected to the rotating shaft by a first belt drive, and the two adjacent drive shafts are connected by a second belt drive.
[0007] Preferably, the bottom of the processing box is fixedly provided with two symmetrically arranged and inclined feeding plates, and a discharge port is formed between the two feeding plates; the bottom of the processing box is fixedly provided with an L-shaped base, and a plurality of fans are fixedly installed at equal intervals at one vertical end of the base; a first collection frame is placed between the two feeding plates at one horizontal end of the base; a second collection frame adjacent to the first collection frame is placed on the base, and the second collection frame is on the side away from the fans; a vertically arranged intercepting plate is fixedly provided at one end of the base near the second collection frame.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] 1. The intermittent feeding of coffee beans can be controlled by the cam, connecting plate, long rod and baffle. Only a certain amount of coffee beans enter the processing box at a time. The intermittent feeding ensures that the amount of coffee beans processed each time is appropriate. It controls the number of coffee beans entering the processing box each time and prevents too many coffee beans from piling up at the top of the hulling machine at one time. It effectively solves the problem of mutual compression and reduced friction space caused by the accumulation of beans.
[0010] 2. After processing, the coffee beans and their shells are discharged through the feeding plate. The fan on the side wall of the base blows the bottom of the feeding plate. The lighter shells are blown towards the intercepting plate and fall into the second collection box, while the coffee beans fall into the first collection box. The automatic separation of coffee beans and shells is achieved through the fan and the intercepting plate, eliminating the need for manual sorting, simplifying subsequent operation processes, facilitating direct transfer, and improving work efficiency. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a cross-sectional structural diagram of the processing box of this utility model.
[0014] Figure 3 This is a schematic diagram of the rotating column structure of this utility model.
[0015] Figure 4 This is a schematic diagram of the internal structure of the feed hopper of this utility model.
[0016] Figure 5 This is a schematic diagram of the base structure of this utility model.
[0017] In the diagram: 1. Processing box; 11. Rotating column; 12. Extrusion block; 13. Extrusion plate; 14. Feed hopper; 15. Long plate; 16. First drive motor; 2. Discharge hopper; 21. Baffle; 22. Long rod; 23. Support plate; 24. Cam; 25. Return spring; 26. Rotating shaft; 27. Connecting plate; 3. Base plate; 31. Drive shaft; 32. First belt; 33. Second drive motor; 34. Second belt; 4. Discharge plate; 41. Base; 42. First collection frame; 43. Second collection frame; 44. Fan; 45. Interception plate. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example: Figure 1-5As shown, this utility model provides a coffee bean hulling device, including a processing box 1, which is cylindrical in shape. Multiple annularly distributed extrusion plates 13 are fixedly arranged inside the processing box 1. A rotating column 11 is located inside the processing box 1, and annularly distributed and equally spaced extrusion blocks 12 are arranged on the outer wall of the rotating column 11. A feeding hopper 14 is fixedly located at the top of the processing box 1. The top of the rotating column 11 is conical. A long plate 15 is fixedly located at the top of the feeding hopper 14, and a first drive motor 16 is fixedly mounted on the long plate 15. The output end of the first drive motor 16 is coaxially fixedly located at the top of the rotating column 11. An inverted conical discharge hopper 2 is fixedly located inside the feeding hopper 14, and the bottom of the discharge hopper 2 rotates with the rotating column 11. A discharge chute is provided between the moving columns 11. Two symmetrically arranged semi-circular baffles 21 are provided in the feed hopper 14 at the discharge chute. Two symmetrically arranged long rods 22 are fixed at the middle end of the baffles 21 and the long rods 22 pass through the feed hopper 14. A support plate 23 is fixed at the middle position of the two long rods 22 on the outer wall of the feed hopper 14. A rotating shaft 26 is rotatably provided on the support plate 23 and a cam 24 is fixed on the rotating shaft 26. A connecting plate 27 is fixedly provided at one end of the two long rods 22 that pass through the feed hopper 14. The cam 24 abuts against the connecting plate 27. A return spring 25 is sleeved on one end of the long rod 22 outside the feed hopper 14 and the two ends of the return spring 25 are respectively fixedly connected to the connecting plate 27 and the outer wall of the feed hopper 14.
[0020] A base plate 3 is fixedly installed on the outer wall of the feed hopper 14 near the two rotating shafts 26. A transmission shaft 31 is rotatably mounted on the base plate 3. The two adjacent transmission shafts 31 are connected to the rotating shafts 26 by a first belt 32, and the two adjacent transmission shafts 31 are connected by a second belt 34. The second belt 34 enables the two transmission shafts 31 to rotate synchronously, while the first belt 32 enables the transmission shafts 31 and the rotating shafts 26 to rotate. Thus, when one of the transmission shafts 31 rotates, the two rotating shafts 26 on the outer wall of the feed hopper 14 will rotate synchronously, increasing the transmission performance of the device. It is worth noting that, in order to ensure the stability of the transmission, the belts used in this patent are the commonly used toothed belt drives on the market, eliminating the lag in the transmission.
[0021] A second drive motor 33 is fixedly installed on the lower surface of one of the base plates 3. The output end of the second drive motor 33 is coaxially fixed on the transmission shaft 31. The second drive motor 33 mainly provides power for the rotation of the transmission shaft 31 and the rotating shaft 26, making it convenient for the staff to operate.
[0022] The bottom of the processing box 1 is fixed with two symmetrically arranged and inclined feeding plates 4, and a discharge port is formed between the two feeding plates 4. The feeding plates 4 are designed to facilitate the centralized discharge of coffee beans and coffee shells, so that the shells and coffee beans can be separated during subsequent blowing.
[0023] The bottom of the processing box 1 is fixedly provided with an L-shaped base 41. Multiple fans 44 are fixedly installed at equal intervals at one vertical end of the base 41. A first collection frame 42 is placed between two feeding plates 4 at one horizontal end of the base 41. A second collection frame 43 is placed on the base 41 adjacent to the first collection frame 42, with the second collection frame 43 on the side away from the fans 44. A vertical intercepting plate 45 is fixedly provided on one end of the base 41 near the second collection frame 43. The intercepting plate 45 is mainly used to intercept the blown coffee bean shells, causing them to fall into the second collection frame 43 for easy collection.
[0024] Working principle: During use, the operator can feed the required amount of hulled coffee beans into the feed hopper 14 at once. The feed hopper 2 inside the feed hopper 14 can collect the coffee beans. Subsequently, the first drive motor 16 and the second drive motor 33 are driven. The first drive motor 16 directly drives the rotating column 11 to rotate. At this time, the extrusion block 12 fixed on the outer wall of the rotating column 11 rotates. During this process, when the coffee bean enters the range of the extrusion block 12, the extrusion plate 13 on the inner wall of the processing box 1 and the extrusion block 12 will crush and hull the coffee bean shells. When the second drive motor 33 is working, it directly drives the drive shaft 31 to rotate. Through the combination of the second belt 34 and the first belt 32, the drive shaft 31 will drive the rotating shaft 26 to rotate together. The rotating shaft 26 will drive the top fixed The fixed cam 24 rotates, and during this rotation, the end of the cam 24 abuts against the connecting plate 27. At this time, the cam 24 will drive the connecting plate 27 to pull the long rods 22 at both ends out of the feed hopper 14. Therefore, the feed hopper 14, which is fixedly connected to the long rods 22, will be pulled out of the bottom of the discharge hopper 2. At this time, the coffee beans will be discharged into the processing box 1 below through the gap between the discharge hopper 2 and the rotating column 11. However, when the cam 24 rotates close to one end of the processing box 1, the return spring 25 will also pull the connecting plate 27 to drive the long rods 22 and the baffle 21 to block the gap between the discharge hopper 2 and the rotating column 11, stopping the coffee beans from being discharged. Therefore, through the above operation, the coffee beans can be discharged intermittently, and each time the processing box 1 and the rotating column 11 can dehull a certain amount of coffee beans, ensuring the normal dehulling of this batch of coffee beans.
[0025] After passing the bottom of the processing box 1, the coffee beans, along with their crushed outer shells, are discharged through the bottom discharge plate 4. During this process, the fan 44, located on the side wall of the base 41, blows the bottom of the discharge plate 4. The lighter coffee bean shells are blown by the fan 44 and float to the interceptor plate 45. After being intercepted by the interceptor plate 45, they are transferred into the second collection box 43, while the coffee beans themselves fall into the first collection box 42, thus completing the separation between the coffee beans and the coffee shells, facilitating subsequent direct transfer.
[0026] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here.
[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A coffee bean hulling device, comprising a processing chamber (1), characterized in that: The processing box (1) is cylindrical in shape. Multiple annularly distributed extrusion plates (13) are fixedly arranged inside the processing box (1). A rotating column (11) is located inside the processing box (1). The outer wall of the rotating column (11) is provided with annularly distributed and equally spaced extrusion blocks (12). A feeding hopper (14) is fixedly arranged at the top of the processing box (1). The top of the rotating column (11) is conical. A discharge hopper (2) with an inverted conical shape is fixedly arranged inside the feeding hopper (14). A discharge groove is provided between the bottom of the discharge hopper (2) and the rotating column (11). Two symmetrically arranged, semi-circular baffles (21) are located at the discharge groove inside the feeding hopper (14). The baffles (21) contain… Two symmetrically arranged long rods (22) are fixedly provided at the middle end of the feed hopper (14), and the long rods (22) penetrate the feed hopper (14). A support plate (23) is fixedly provided on the outer wall of the feed hopper (14) at the middle position of the two long rods (22). A rotating shaft (26) is rotatably provided on the support plate (23), and a cam (24) is fixedly provided on the rotating shaft (26). A connecting plate (27) is fixedly provided at one end of the two long rods (22) penetrating the feed hopper (14). The cam (24) abuts against the connecting plate (27). A return spring (25) is sleeved on one end of the long rod (22) outside the feed hopper (14), and the two ends of the return spring (25) are respectively fixedly connected to the connecting plate (27) and the outer wall of the feed hopper (14).
2. The coffee bean hulling device as described in claim 1, characterized in that, The top of the feed hopper (14) is fixedly provided with a long plate (15) and a first drive motor (16) is fixedly installed on the long plate (15). The output end of the first drive motor (16) is coaxially fixedly provided on the top of the rotating column (11).
3. The coffee bean hulling device as described in claim 2, characterized in that, The outer wall of the feed hopper (14) is fixedly provided with a base plate (3) near the two rotating shafts (26). A transmission shaft (31) is rotatably provided on the base plate (3). The two adjacent transmission shafts (31) are connected to the rotating shaft (26) by a first belt (32), and the two adjacent transmission shafts (31) are connected by a second belt (34).
4. The coffee bean hulling device as described in claim 3, characterized in that, A second drive motor (33) is fixedly mounted on the lower surface of one of the base plates (3), and the output end of the second drive motor (33) is coaxially fixed on the transmission shaft (31).
5. A coffee bean hulling device as described in claim 4, characterized in that, The bottom of the processing box (1) is fixedly provided with two symmetrically arranged and inclined feeding plates (4), and a discharge port is formed between the two feeding plates (4).
6. The coffee bean hulling device as described in claim 5, characterized in that, The bottom of the processing box (1) is fixedly provided with an L-shaped base (41). A plurality of fans (44) are fixedly installed at the vertical end of the base (41). A first collection frame (42) is placed between two feed plates (4) at the horizontal end of the base (41). A second collection frame (43) adjacent to the first collection frame (42) is placed on the base (41) and the second collection frame (43) is away from the fan (44).
7. A coffee bean hulling device as described in claim 6, characterized in that, A vertically arranged interceptor plate (45) is fixedly provided on one end of the base (41) near the second collection frame (43).