A coffee bean sorting machine structure based on vibration screening

Abstract

The utility model discloses a coffee bean sorting machine structure based on vibrating screening relates to coffee bean processing technical field, including screen cloth and mechanism frame, and screen cloth left and right are all provided with the coaming, and the vibration motor is fixedly installed to mechanism frame downside, and vibration motor output shaft is connected with screen cloth lower part fixedly, and the screen cloth obverse surface is square structure, and the screen cloth is set up to square front side one angle inclination. The utility model scissor rest and screening rod cooperate and adjust the opening and closing interval, satisfy different particle size screening demand, and L shape frame sliding lock design supports multistage sorting standard, and integrated screen cloth, guide plate subassembly realizes the integrated operation of impurity separation, and movable plate linkage lever realizes coffee bean timing automatic discharge, and valve plate adopts torsion spring and limit convex structure and ensures one -way flow, and vibration motor drives the inclined screen cloth and accelerates coffee bean flow and impurity separation, and mechanism frame passes through the slide axle and spring structure buffer vibration impact, and the combination coaming guide optimization distribution uniformity.

Description

Technical Field

[0001] This utility model relates to the field of coffee bean processing technology, and in particular to a coffee bean sorting machine structure based on vibration screening. Background Technology

[0002] Coffee, made from roasted coffee beans, is one of the world's three major beverages, alongside cocoa and tea. It has a stimulating and invigorating effect due to its caffeine content. Coffee processing refers to the entire process from harvesting the coffee cherries to obtaining roastable coffee beans, including steps such as harvesting, hulling, fermentation, washing, drying, and sorting.

[0003] Coffee sorting refers to the process of screening and classifying coffee beans after harvest to ensure that only high-quality beans are used for processing. The purpose of sorting is to remove defective beans, immature beans, impurities, and other beans that do not meet quality standards. This process has a significant impact on the final taste and quality of the coffee. Current sorting systems mostly use filters; however, the pore size of these filters is fixed. To obtain coffee beans with more particle size classifications, multiple sets of filters with different pore sizes are needed. Changing between sorting systems or filters during this process is time-consuming, severely impacting sorting efficiency.

[0004] Therefore, this invention proposes a coffee bean sorting machine structure based on vibration screening to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a coffee bean sorting machine structure based on vibration screening.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coffee bean sorting machine structure based on vibration sieving includes a screen and a frame. The screen has side panels on both sides. A vibration motor is fixedly installed on the lower side of the frame, and the output shaft of the vibration motor is fixedly connected to the lower part of the screen. The screen has a square top surface, with the screen tilted towards one front corner. A scissor frame is located on the front side of the screen, and several screening rods are installed inside the scissor frame. These screening rods are connected to the upper and lower hinges of the scissor frame, and are located on the upper side of the screen surface. One side of the scissor frame is fixed to the screen, and an L-shaped frame is fixedly connected to the other side of the scissor frame. A guide plate located on the upper side of the screen is fixed to the rear side of the L-shaped frame.

[0008] Preferably, a sliding shaft is fixed on both the left and right sides of the mechanism frame, and a slider that slides back and forth on the mechanism frame is sleeved on the outside of the sliding shaft. A spring is provided on the front and rear sides of the slider and sleeved on one side of the sliding shaft.

[0009] A second sliding shaft is fixed on the upper side of the slider. The second sliding shaft passes through the bottom of the upper screen. A second spring is sleeved around the second sliding shaft between the screen and the slider.

[0010] Preferably, the L-shaped frame is located at one corner of the front side of the screen, and the L-shaped frame slides left and right on the screen, while the guide plate slides left and right on the surface of the screen.

[0011] Preferably, a stud is fixedly connected to the front left side of the L-shaped frame, a slot corresponding to the stud is opened on the front side of the screen, and a locking nut that is tightly attached to the surface of the screen is provided on the stud.

[0012] Preferably, a valve plate is rotatably connected to the left side inside the L-shaped frame. The valve plate is located between the L-shaped frame and the guide plate. A torsion spring is provided at the junction of the valve plate, and a corresponding limiting protrusion is provided inside the L-shaped frame.

[0013] Preferably, a movable plate is provided between the L-shaped frame and the guide plate, and the movable plate slides back and forth on the screen. Several positioning slots corresponding to the movable plate are evenly provided on the inner side of the L-shaped frame. A spring is provided between the rear of the movable plate and the inside of the screen. An opening corresponding to the movable plate is opened at the front end of the side panel of the screen.

[0014] Preferably, a contact block located outside the screen is fixed to the outer rear part of the movable plate, and a lever corresponding to the contact block is rotatably connected to the outer side of a screen enclosure, and the lever is connected to a small motor installed on the enclosure.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model combines a scissor frame with a screening rod, and adjusts the opening and closing distance to meet the screening requirements of coffee beans of different sizes, thereby improving the adaptability of the equipment. The L-shaped frame can be locked after sliding adjustment, which can flexibly match the coffee bean grading standards and meet the requirements of multi-level sorting. The screen, L-shaped frame, guide plate and other components are integrated into one unit, which can simultaneously complete the functions of impurity removal and sorting, simplifying the operation process.

[0017] 2. This utility model uses a vibrating motor to drive the screen to vibrate. Combined with the inclined screen surface design, it accelerates the flow of coffee beans and the separation of impurities, thereby improving screening efficiency. The frame structure forms a buffer and lifting structure through sliding shaft one, sliding shaft two, and spring one / spring two, which reduces vibration impact and ensures the stability of equipment operation. The inclined screen surface combined with the surrounding plate forms a guiding space, which optimizes the uniformity of coffee bean distribution and improves screening accuracy.

[0018] 3. The movable plate of this utility model, in conjunction with the lever, opens and closes periodically to realize the timed automatic discharge of accumulated coffee beans, reducing manual intervention. The valve plate adopts a torsion spring and a limiting protrusion design to ensure unidirectional flow of coffee beans and avoid backflow problems caused by vibration. Attached Figure Description

[0019] Figure 1 This invention presents a structural schematic diagram of a coffee bean sorting machine based on vibrating sieves. Figure 1 ;

[0020] Figure 2 This invention presents a structural schematic diagram of a coffee bean sorting machine based on vibrating sieves. Figure 2 ;

[0021] Figure 3 This invention presents a structural schematic diagram of a coffee bean sorting machine based on vibrating sieves. Figure 3 ;

[0022] Figure 4 This is a schematic diagram of the connection structure of the L-shaped frame in a coffee bean sorting machine based on vibration screening proposed in this utility model.

[0023] In the diagram: 1. Screen; 2. L-shaped frame; 3. Guide plate; 4. Mechanism frame; 5. Vibration motor; 6. Slider; 7. Slide shaft one; 8. Spring one; 9. Slide shaft two; 10. Spring two; 11. Scissors frame; 12. Screening rod; 13. Movable plate; 14. Contact block; 15. Spring three; 16. Lever; 17. Stud; 18. Locking nut; 19. Positioning slot; 20. Valve plate. Detailed Implementation

[0024] 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.

[0025] Reference Figure 1-4A coffee bean sorting machine structure based on vibration sieving includes a screen 1 and a frame 4. The screen 1 has side panels on both sides. A vibration motor 5 is fixedly installed on the lower side of the frame 4. The output shaft of the vibration motor 5 is fixedly connected to the lower part of the screen 1. The screen 1 has a square structure on its top surface, and is tilted towards one front corner of the square. A scissor frame 11 is provided on the front side of the screen 1. Several screening rods 12 are installed inside the scissor frame 11, and all screening rods 12 are connected to the upper and lower hinges of the scissor frame 11. The screening rods 12 are located on the upper surface of the screen 1. One side of the scissor frame 11 is fixed. On the screen 1, this coffee bean sorting mechanism is set with a screen 1 tilted to one corner. The vibration motor 5 controls the screen 1 connected to the upper side to vibrate and screen the coffee beans passing through the surface of the screen 1. Unqualified coffee beans and bean skins are removed through the filter of the screen 1. Several screening rods 12 set at the front side in conjunction with the scissor frame 11 can control the opening and closing of the scissor frame 11 to control the spacing of the screening rods 12. The spacing can be adjusted reasonably according to the particle size of the coffee beans to be screened. Coffee beans with qualified particle size are screened out to the front side of the screen 1, while coffee beans with larger particle size are temporarily left inside the screen 1.

[0026] An L-shaped frame 2 is fixedly connected to the other side of the scissor frame 11. A guide plate 3 located on the upper side of the screen 1 is fixed to the rear side of the L-shaped frame 2. The L-shaped frame 2 is located at one corner of the front side of the screen 1 and slides left and right on the screen 1. The guide plate 3 slides left and right on the surface of the screen 1. A stud 17 is fixedly connected to the front left side of the L-shaped frame 2. A slot corresponding to the stud 17 is opened on the front side of the screen 1, and a locking nut 18 is provided on the stud 17 that is close to the surface of the screen 1. A valve plate 20 is rotatably connected to the left side inside the L-shaped frame 2. The valve plate 20 is located between the L-shaped frame 2 and the guide plate 3. A torsion spring is provided at the junction of the valve plate 20, and a limiting protrusion corresponding to the valve plate 20 is provided inside the L-shaped frame 2. The other side of the sliding scissor frame 11 is connected to... The L-shaped frame 2 allows for adjustment of the spacing of the sieving rods 12. Once the sieving spacing is determined, the locking nut 18 on the stud 17 is rotated so that the locking nut 18 is tightly attached to the front surface of the screen 1, thereby locking the position of the L-shaped frame 2 on the screen 1. Since the screen 1 is tilted towards one corner of the L-shaped frame 2, the coffee beans with larger particle sizes after sieving enter the interior of the L-shaped frame 2 through the valve plate 20 and remain in the space composed of the guide plate 3, the L-shaped frame 2, and the screen 1 enclosure. The torsion spring and the limiting protrusion of the valve plate 20 ensure unidirectional flow of the valve plate 20 and, in the absence of external force, the valve plate 20 is closed to prevent the screen 1 from vibrating and shaking out the coffee beans that have entered.

[0027] A movable plate 13 is provided between the L-shaped frame 2 and the guide plate 3. The movable plate 13 slides back and forth on the screen 1. Several positioning slots 19 corresponding to the movable plate 13 are evenly arranged on the inner side of the L-shaped frame 2. A spring 15 is provided between the rear of the movable plate 13 and the inside of the screen 1. An opening corresponding to the movable plate 13 is opened at the front end of one side of the screen 1. A contact block 14 located outside the screen 1 is fixed to the outer rear part of the movable plate 13. A lever 16 corresponding to the contact block 14 is rotatably connected to the outer side of one side of the screen 1, and the lever 16 is connected to a small motor installed on the side. While the vibrating sieve 1 is performing its sieving operation, a small motor on one side of the enclosure is started. The small motor controls the connected lever 16 to rotate. Each rotation of the lever 16 completes the compression of the contact block 14. After the lever 16 has completely rotated past the contact block 14, the movable plate 13 connected to the contact block 14 returns to its initial position under the elastic force of the spring 15. Therefore, each rotation of the lever 16 completes the opening and closing of the movable plate 13 to one side of the opening, allowing the coffee beans accumulated in the space composed of the guide plate 3, the L-shaped frame 2, and the enclosure of the sieve 1 to be discharged once.

[0028] The frame 4 has sliding shafts 7 fixed on both sides. Sliding blocks 6 that slide back and forth on the frame 4 are sleeved on the outside of the sliding shafts 7. Springs 8 are sleeved on the front and back sides of the sliding shafts 7. A second sliding shaft 9 is fixed on the upper side of the sliding shafts 6. The second sliding shaft 9 passes through the bottom of the upper screen 1. Springs 10 located between the screen 1 and the sliding blocks 6 are sleeved on the sides of the second sliding shaft 9. The frame 4 structure, the sliding blocks 6 that slide on the sliding shafts 7, and the screen 1 that slides up and down on the second sliding shaft 9, together with the vibration motor 5 connected to the screen 1, can increase the vibration amplitude of the connected screen 1 and form a lifting structure for the screen 1, ensuring the normal and stable operation of the screening mechanism. Therefore, the vibrating screening structure composed of the screen 1 and the front screening rod 11 can not only complete the first impurity removal work of screening coffee beans, but also sort the coffee beans according to the size of the coffee bean particles. The screening particle size is adjustable, and coffee beans of different particle sizes can be obtained by screening multiple times.

[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 coffee bean sorting machine structure based on vibration sieving, comprising a screen (1) and a frame (4), characterized in that, The screen (1) is provided with a surrounding plate on both the left and right sides. A vibration motor (5) is fixedly installed on the lower side of the mechanism frame (4). The output shaft of the vibration motor (5) is fixedly connected to the lower part of the screen (1). The screen (1) has a square structure on its top surface. The screen (1) is inclined to one corner of the front side of the square. A scissor frame (11) is provided on the front side of the screen (1). Several screening rods (12) are provided inside the scissor frame (11). Several screening rods (12) are connected to the upper and lower hinges of the scissor frame (11). The screening rods (12) are located on the upper side of the surface of the screen (1). One side of the scissor frame (11) is fixed to the screen (1). An L-shaped frame (2) is fixedly connected to the other side of the scissor frame (11). A guide plate (3) located on the upper side of the screen (1) is fixed on the rear side of the L-shaped frame (2).

2. The coffee bean sorting machine structure based on vibrating sieve according to claim 1, characterized in that, The mechanism frame (4) is fixed with sliding shafts (7) on both the left and right sides. Sliding blocks (6) that slide back and forth on the mechanism frame (4) are sleeved on the outside of the sliding shafts (7). Springs (8) are sleeved on the front and back sides of the sliding shafts (7). The upper side of the slider (6) is fixed with a sliding shaft (9), which passes through the bottom of the upper screen (1). A spring (10) is sleeved around the sliding shaft (9) between the screen (1) and the slider (6).

3. The coffee bean sorting machine structure based on vibrating sieving according to claim 1, characterized in that, The L-shaped frame (2) is located at one corner of the front side of the screen (1), and the L-shaped frame (2) slides left and right on the screen (1), and the guide plate (3) slides left and right on the surface of the screen (1).

4. The coffee bean sorting machine structure based on vibrating sieving according to claim 1, characterized in that, The L-shaped frame (2) has a stud (17) fixed on the left side of the front part. The screen (1) has a slot corresponding to the stud (17) on the front side, and a locking nut (18) is provided on the stud (17) that is close to the surface of the screen (1).

5. The coffee bean sorting machine structure based on vibrating sieve according to claim 1, characterized in that, The L-shaped frame (2) is rotatably connected to a valve plate (20) on the left side. The valve plate (20) is located between the L-shaped frame (2) and the guide plate (3). A torsion spring is provided at the junction of the valve plate (20), and a limiting protrusion corresponding to the valve plate (20) is provided inside the L-shaped frame (2).

6. The coffee bean sorting machine structure based on vibrating sieve according to claim 1, characterized in that, A movable plate (13) is provided between the L-shaped frame (2) and the guide plate (3). The movable plate (13) slides back and forth on the screen (1). Several positioning slots (19) corresponding to the movable plate (13) are evenly provided on the inner side of the L-shaped frame (2). A spring three (15) is provided between the rear of the movable plate (13) and the inside of the screen (1). An opening corresponding to the movable plate (13) is opened at the front end of one side of the screen (1).

7. The coffee bean sorting machine structure based on vibrating sieve according to claim 6, characterized in that, The movable plate (13) has a contact block (14) fixed on the outer side of the rear part, which is located outside the screen (1). The screen (1) has a lever (16) rotatably connected to the outer side of a surrounding plate, which corresponds to the contact block (14). The lever (16) is connected to a small motor installed on the surrounding plate.

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