A coffee bean fruit skin fermentation pretreatment device
By using a motor-driven rotating shaft and rope system, along with an electric cylinder-controlled discharge pipe, the problems of laborious manual feeding and clogging in existing devices have been solved, achieving efficient and automated separation of coffee seeds and fruit peels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LANCANG RUIFENG TEA & COFFEE CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-02
AI Technical Summary
Existing coffee bean husk fermentation pretreatment devices require manual lifting of the coffee bean container to add the husks, resulting in high labor intensity, inconvenience in quantitative feeding, easy clogging, and affecting the separation effect.
The system uses a motor-driven rotating shaft and rope system in conjunction with an electric cylinder to lift and stir the material box. The feeding speed is controlled by the discharge pipe and guide block to avoid blockage and achieve automated quantitative feeding.
Reduce manual labor intensity, ensure a stable and uniform feeding process, improve the separation of coffee seeds and fruit skins, avoid clogging, and improve production efficiency.
Smart Images

Figure CN224312803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee processing technology, specifically to a coffee bean pericarp fermentation pretreatment device. Background Technology
[0002] Coffee is a beverage made from roasted and ground coffee beans. As one of the world's three major beverages, it, along with cocoa and tea, is a popular drink worldwide. The coffee fruit consists of an outer skin, pulp, endocarp, silverskin, and the seed, which is located in the center of the fruit. In current coffee processing, after the coffee fruit is harvested, the seeds need to be separated from the skin. The seeds are processed into coffee beans and coffee, while the coffee skin contains 17 amino acids, including threonine, valine, and methionine, as well as functional components such as chlorogenic acid and trigonelline. It is rich in nutrients and suitable for developing coffee skin tea, fruit wine, and other products. The production of coffee skin tea and fruit wine requires fermentation of the coffee skin, and the skin on the coffee fruit needs to be separated before fermentation.
[0003] A search revealed a utility model patent in China, CN214865261U, which discloses a coffee fruit peel pretreatment device. The device comprises a hopper, a spiked plate, and a fixed plate. The hopper and spiked plate are slidably connected, as are the hopper and fixed plate. In use, the device utilizes a first motor, a spiked roller, and a hopper. This arrangement, with the hopper and motor fixedly connected, allows the spikes to pierce the outer peel of the coffee fruit, avoiding damage to the coffee seeds caused by pressure crushing or scraping. This device effectively reduces production costs and facilitates the sieving of processed coffee cherries. Although the above-mentioned device facilitates the separation of coffee seeds from coffee cherries, it still requires manual lifting of the container holding the coffee cherries and adding them into the feed hopper. This process is too frequent and laborious, increasing the workload of the workers. In addition, the above-mentioned device is not convenient for quantitatively adding coffee cherries. When a large number of coffee cherries are squeezed into the feed hopper, blockage may occur, resulting in unsatisfactory peeling effect. Therefore, we propose a coffee bean cherry peel fermentation pretreatment device. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a coffee bean peel fermentation pretreatment device to solve the problems mentioned in the background art. In use, it is necessary to manually lift the container holding the coffee cherries and add them into the feed hopper. This process is too frequent and laborious, increasing the workload of the workers. Moreover, the above-mentioned device is not convenient for quantitatively adding coffee cherries. When a large number of coffee cherries are squeezed into the feed hopper, blockage may occur, resulting in unsatisfactory peeling effect.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a coffee bean pericarp fermentation pretreatment device, comprising a separation device, and further comprising: a base, wherein the separation device is mounted on the base; and a feeding mechanism, wherein the feeding mechanism is disposed on the base, the feeding mechanism comprising a support frame, the support frame being fixedly connected to the base, two support plates being fixedly connected to the support frame, and a rotating shaft being rotatably connected between the two support plates, wherein a motor is mounted on one of the support plates, the output end of the motor passing through the support plate and being fixedly connected to the rotating shaft, and two... The support frame has two openings through which the pull rope passes. Two material boxes are slidably connected inside the support frame. A fixing frame is fixedly connected to each material box. The pull rope is fixedly connected to the fixing frame. A fixing pipe and a connecting block are fixedly connected to each material box. A discharge pipe is slidably connected inside the fixing pipe. A guide block is fixedly connected inside the discharge pipe. One discharge port is opened on the fixing pipe and the material box. Another discharge port is opened on the discharge pipe. A fixing block is fixedly connected to the discharge pipe. An electric cylinder is installed on the connecting block. The output end of the electric cylinder is fixedly connected to the fixing block.
[0008] Preferably, a second motor is installed on the material box, and a stirring frame is rotatably connected inside the material box. The output end of the second motor passes through the material box and is fixedly connected to the stirring frame.
[0009] Furthermore, the support frame has four sliding grooves, and sliders are slidably connected in the sliding grooves. The four sliders are in pairs, and the material box is fixedly connected between two sliders.
[0010] Furthermore, a partition is fixedly sleeved on the rotating shaft.
[0011] Furthermore, a baffle plate is fixedly connected to the separation device.
[0012] Based on the aforementioned scheme, two support grooves are fixedly connected to the support frame, and pulleys are rotatably connected in the support grooves, with the pull rope located on the pulleys.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a coffee bean pericarp fermentation pretreatment device, which has the following beneficial effects:
[0015] This coffee bean and pericarp fermentation pretreatment device uses a motor to drive a rotating shaft, which allows the shaft to wind up one rope and release the other, facilitating the lifting and lowering of the two feed hoppers. This allows for continuous feeding of the separation device. Through the coordination of an electric cylinder, discharge pipe, guide block, discharge port one, and discharge port two, the device facilitates the addition of coffee cherries from the feed hoppers into the separation device, making it easy to control the feeding speed. This device saves manpower, ensures uniform and stable feeding, avoids coffee cherries clogging in the separation device, and improves the separation effect between coffee seeds and coffee pericarps. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present application;
[0017] Figure 2 This is a three-dimensional structural diagram of the rear view of this application;
[0018] Figure 3 This is a three-dimensional structural diagram of the electric cylinder, fixing block, etc., used in this application;
[0019] Figure 4 This is a three-dimensional structural diagram of the material discharge pipe, guide block, etc., used in this application;
[0020] Figure 5 For this application Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0021] In the diagram: 1. Separation device; 2. Base; 3. Support frame; 4. Support plate; 5. Rotating shaft; 6. Motor 1; 7. Pull rope; 8. Material box; 9. Fixing frame; 10. Fixing pipe; 11. Discharge pipe; 12. Guide block; 13. Fixing block; 14. Electric cylinder; 15. Motor 2; 16. Mixing rack; 17. Sliding block; 18. Partition plate; 19. Baffle plate; 20. Support groove; 21. Pulley. 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. 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.
[0023] Example 1
[0024] Please see Figures 1-5A coffee bean pericarp fermentation pretreatment device includes a separation device 1 and a base 2 on which the separation device 1 is mounted. The feeding mechanism is also included, mounted on the base 2 and comprising a support frame 3 fixedly connected to the base 2. Two support plates 4 are fixedly connected to the support frame 3, and a rotating shaft 5 is rotatably connected between the two support plates 4. A motor 6 is mounted on one of the support plates 4, and the output end of the motor 6 passes through the support plate 4 and is fixedly connected to the rotating shaft 5. Two pull ropes 7 are fixedly connected to the rotating shaft 5, and a partition 18 is fixedly sleeved on the rotating shaft 5 to separate the two pull ropes 7. To prevent the two pull ropes 7 from getting tangled, the support frame 3 has two openings through which the pull rope 7 passes. Two support grooves 20 are fixedly connected to the support frame 3, and pulleys 21 are rotatably connected within the support grooves 20. The pull rope 7 sits on the pulleys 21 to protect it and improve its smoothness during movement, reducing friction between the pull rope 7 and the openings. Two material boxes 8 are slidably connected inside the support frame 3. Four sliding grooves are provided on the support frame 3, and sliders 17 are slidably connected within these grooves. The four sliders 17 are arranged in pairs, and the material box 8 is fixedly connected between two sliders 17 to improve its stability. A fixing frame 9 is fixedly connected to the feed hopper 8. A pull rope 7 is fixedly connected to the fixing frame 9. A second motor 15 is installed on the feed hopper 8. A stirring rack 16 is rotatably connected inside the feed hopper 8. The output end of the second motor 15 passes through the feed hopper 8 and is fixedly connected to the stirring rack 16. This is used to stir the coffee cherries inside the feed hopper 8, preventing them from clogging the outlet. A fixing pipe 10 and a connecting block are fixedly connected to the feed hopper 8. A discharge pipe 11 is slidably connected inside the fixing pipe 10. A guide block 12 is fixedly connected inside the discharge pipe 11. The fixing pipe 10 and the feed hopper 8 have a first discharge port, and the discharge pipe 11 has a second discharge port. A fixed block 13 is fixedly connected to the upper part, and an electric cylinder 14 is installed on the connecting block. The output end of the electric cylinder 14 is fixedly connected to the fixed block 13. A baffle plate 19 is fixedly connected to the separating device 1 to block the coffee berries and facilitate better addition. Motor 6 is used to drive the rotating shaft 5 to rotate. The rotating shaft 5 is used to release or rewind the pull rope 7. The material box 8 is used to hold the coffee berries. The electric cylinder 14 is used to drive the discharge pipe 11 to move above the separating device 1. The guide block 12 is used to guide the coffee berries to prevent them from accumulating in the discharge pipe 11. The discharge port 1 and discharge port 2 are used to control the feeding speed of the coffee berries.
[0025] Example 2
[0026] Please see Figures 1-5A coffee bean pericarp fermentation pretreatment device includes a separation device 1 and a base 2, on which the separation device 1 is mounted; a feeding mechanism, which is mounted on the base 2 and includes a support frame 3 fixedly connected to the base 2. Two support plates 4 are fixedly connected to the support frame 3, and a rotating shaft 5 is rotatably connected between the two support plates 4. A motor 6 is mounted on one of the support plates 4, and the output end of the motor 6 passes through the support plate 4 and is fixedly connected to the rotating shaft 5. Two pull ropes 7 are fixedly connected to the rotating shaft 5. Two openings are provided on the support frame 3, through which the pull ropes 7 pass. Two material boxes 8 are slidably connected inside the support frame 3, and a fixing frame 9 is fixedly connected to each material box 8. The pull ropes 7 are fixedly connected to the fixing frame 9. A fixed pipe 10 and a connecting block are connected. A discharge pipe 11 is slidably connected inside the fixed pipe 10. A guide block 12 is fixedly connected inside the discharge pipe 11. A discharge port 1 is opened on the fixed pipe 10 and the material box 8. A discharge port 2 is opened on the discharge pipe 11. A fixed block 13 is fixedly connected to the discharge pipe 11. An electric cylinder 14 is installed on the connecting block. The output end of the electric cylinder 14 is fixedly connected to the fixed block 13. A motor 6 is used to drive the rotating shaft 5 to rotate. The rotating shaft 5 is used to release or rewind the pull rope 7. The material box 8 is used to hold coffee berries. The electric cylinder 14 is used to drive the discharge pipe 11 to move above the separation device 1. The guide block 12 is used to guide the coffee berries to prevent them from accumulating in the discharge pipe 11. The first and second discharge ports are used to control the feeding speed of the coffee berries.
[0027] A motor 15 is installed on the feed hopper 8, and a stirring rack 16 is rotatably connected inside the feed hopper 8. The output end of the motor 15 passes through the feed hopper 8 and is fixedly connected to the stirring rack 16. It is used to stir the coffee berries in the feed hopper 8 to prevent the coffee berries from clogging the outlet.
[0028] The support frame 3 has four sliding grooves, and sliders 17 are slidably connected in the sliding grooves. The four sliders 17 are in pairs, and the material box 8 is fixedly connected between two sliders 17 to improve the stability of the material box 8.
[0029] A partition 18 is fixedly sleeved on the rotating shaft 5 to separate the two pull ropes 7 and prevent them from getting tangled together.
[0030] A baffle plate 19 is fixedly connected to the separation device 1 to act as a shield, making it easier to add coffee berries.
[0031] Two support grooves 20 are fixedly connected to the support frame 3. A pulley 21 is rotatably connected inside the support groove 20. The pull rope 7 is located on the pulley 21, which is used to protect the pull rope 7 and improve the smoothness of the pull rope 7 when it moves, and reduce the friction between the pull rope 7 and the opening.
[0032] It should be further explained that the motor 6, motor 15, and electric cylinder 14 in this embodiment are conventional devices known to those skilled in the art and available on the market. Models can be selected or customized according to actual needs. In this patent, we only use them without improving their structure and function. Their setting method, installation method, and electrical connection method can be easily explained by those skilled in the art by following the instructions for use. They will not be described in detail here. The motor 6, motor 15, and electric cylinder 14 are equipped with matching control switches. The installation position of the control switches can be selected according to actual usage requirements to facilitate operation and control by the operator.
[0033] In summary, the working principle and process of this coffee bean husk fermentation pretreatment device are as follows: First, place the device at the desired location and connect motor 6 and motor 15 according to the corresponding instruction manual to establish the forward and reverse circuits. Then, add coffee berries to the lower-level feed hopper 8 and start motor 6. Motor 6 drives the rotating shaft 5 to rotate, causing one pull rope 7 to wind up while the other pull rope 7 is released. The winding of pull rope 7 pulls the fixed frame 9 and feed hopper 8 upwards, while the other feed hopper 8 falls down. When the feed hopper 8 filled with coffee berries reaches its highest point, the empty feed hopper 8 will fall onto the base 2. At this point, the operator can add coffee berries to the empty feed hopper 8 and start motor 15 and electric cylinder 14, which are positioned above feed hopper 8. Motor 15 drives the stirring rack 16 to stir the coffee berries in feed hopper 8. To prevent clogging, the coffee cherries are stirred. The electric cylinder 14 moves the fixed block 13 and the discharge pipe 11. The discharge pipe 11 slowly moves into the baffle plate 19, above the separation device 1. At this time, the first discharge port and the second discharge port overlap, and the coffee cherries fall into the inlet and outlet pipes 11. This allows for the quantitative feeding of coffee cherries, improving the separation effect between coffee seeds and coffee cherries, thus facilitating the removal of coffee cherries for subsequent fermentation. The separation device 1 involved in this solution is the authorized technology disclosed in the utility model patent with Chinese Patent Publication (Announcement) No. CN214865261U. Its internal structure and working principle are well known to those skilled in the art and are not the innovation of this patent. The innovation of this patent lies in saving manpower and improving the separation effect. Therefore, this patent will not elaborate on its internal structure and working principle.
[0034] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A coffee bean pericarp fermentation pretreatment device, comprising a separation device (1), characterized in that, Also includes: The base (2) is on which the separation device (1) is mounted; The feeding mechanism is mounted on the base (2) and includes a support frame (3). The support frame (3) is fixedly connected to the base (2). Two support plates (4) are fixedly connected to the support frame (3). A rotating shaft (5) is rotatably connected between the two support plates (4). A motor (6) is mounted on one of the support plates (4). The output end of the motor (6) passes through the support plate (4) and is fixedly connected to the rotating shaft (5). Two pull ropes (7) are fixedly connected to the rotating shaft (5). Two openings are opened on the support frame (3). The pull ropes (7) pass through the openings. Two slidably connected parts are inside the support frame (3). Material box (8), a fixed frame (9) is fixedly connected to the material box (8), the pull rope (7) is fixedly connected to the fixed frame (9), a fixed pipe (10) and a connecting block are fixedly connected to the material box (8), a discharge pipe (11) is slidably connected inside the fixed pipe (10), a guide block (12) is fixedly connected inside the discharge pipe (11), a discharge port one is opened on the fixed pipe (10) and the material box (8), a discharge port two is opened on the discharge pipe (11), a fixed block (13) is fixedly connected to the discharge pipe (11), an electric cylinder (14) is installed on the connecting block, and the output end of the electric cylinder (14) is fixedly connected to the fixed block (13).
2. The coffee bean pericarp fermentation pretreatment device according to claim 1, characterized in that: A second motor (15) is installed on the material box (8), and a stirring rack (16) is rotatably connected inside the material box (8). The output end of the second motor (15) passes through the material box (8) and is fixedly connected to the stirring rack (16).
3. The coffee bean pericarp fermentation pretreatment device according to claim 2, characterized in that: The support frame (3) has four sliding grooves, and sliders (17) are slidably connected in the sliding grooves. The four sliders (17) are in pairs, and the material box (8) is fixedly connected between two sliders (17).
4. The coffee bean pericarp fermentation pretreatment device according to claim 3, characterized in that: A partition plate (18) is fixedly sleeved on the rotating shaft (5).
5. The coffee bean pericarp fermentation pretreatment device according to claim 4, characterized in that: A baffle plate (19) is fixedly connected to the separation device (1).
6. The coffee bean pericarp fermentation pretreatment device according to claim 5, characterized in that: Two support grooves (20) are fixedly connected to the support frame (3), and a pulley (21) is rotatably connected in the support groove (20). The pull rope (7) is located on the pulley (21).