Coffee bean drying equipment

Abstract

The utility model relates to the technical field of coffee bean processing, in particular to coffee bean drying equipment, and aims to solve the problems that coffee beans stacked on a drying screen in a box body are heated unevenly due to the fact that hot air drying is adopted in the equipment, local drying is excessive, and partial drying is not complete. Therefore, the use efficiency and the effect of the drying equipment are enhanced; comprising a drying equipment body and a screen, a drying assembly is arranged in the drying equipment body, the screen is fixedly installed in the middle area of the inner wall of the drying equipment body, the drying assembly is located under the screen, and a scraping mechanism is arranged at the top end of the screen; the scraping mechanism further comprises a scraping plate, a first motor, a reciprocating lead screw, a sliding block, a connecting plate, fixing plates and a lifting plate, multiple sets of passing grooves are formed in the bottom end of the scraping plate, and the two sets of fixing plates are fixedly installed at the bottom end of the lifting plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to coffee bean processing technical field, specifically is a coffee bean drying equipment. BACKGROUND

[0002] In the processing of coffee beans, drying is a crucial link. Proper drying treatment can remove excess moisture in coffee beans, improve the quality and shelf life of coffee beans;

[0003] The existing coffee bean drying equipment on the market has some deficiencies. The equipment uses hot air drying, which causes the coffee beans accumulated on the drying screen in the box to be unevenly heated, which can easily cause local over-drying and partial incomplete drying, affecting the taste and quality of the coffee beans. Therefore, the use efficiency and effect of the drying equipment are reduced, thereby reducing the practicability. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a coffee bean drying equipment, which aims to solve the problem that the equipment uses hot air drying, which causes the coffee beans accumulated on the drying screen in the box to be unevenly heated, which can easily cause local over-drying and partial incomplete drying, affecting the taste and quality of the coffee beans. Therefore, the use efficiency and effect of the drying equipment are enhanced, thereby enhancing the practicability of the coffee bean drying equipment.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coffee bean drying equipment, comprising a drying equipment body and a screen, the drying equipment body is provided with a drying assembly, the screen is fixedly installed in the middle region of the inner wall of the drying equipment body, the drying assembly is located directly below the screen, the top end of the screen is provided with a scraping mechanism;

[0008] The scraping mechanism further comprises a scraping plate, a first motor, a reciprocating screw rod, a sliding block, a connecting plate, a fixed plate and a lifting plate, the bottom end of the scraping plate is provided with a plurality of groups of through grooves, the bottom end of the lifting plate is fixedly installed with two groups of fixed plates, the two groups of fixed plates are rotatably connected with the corresponding reciprocating screw rods, the installation end of the first motor is fixedly installed with the corresponding fixed plates, the output end of the first motor is fixedly connected with one side of the corresponding reciprocating screw rod, the sliding block is threadedly connected with the corresponding reciprocating screw rod, the bottom end of the sliding block is connected with the top end of the corresponding connecting plate, and the bottom end of the connecting plate is rotatably connected with the corresponding scraping plate through the angle adjusting mechanism.

[0009] Furthermore, to facilitate the adjustment of the scraper's angle, the present invention includes an angle adjustment mechanism that further comprises a second motor and a fixed base. The top of the scraper is provided with a first groove, and two sets of fixed bases are fixedly installed at the bottom of the connecting plate. The two sets of fixed bases are rotatably connected to the top of the corresponding scraper. Two sets of second motors are symmetrically installed on the fixed bases, and the output ends of the two sets of second motors are rotatably inserted into the fixed bases and fixedly connected to the corresponding fixed plates. The scraper is adjusted by rotating in the front and back directions so that the scraper presents a certain angle with the horizontal direction.

[0010] Furthermore, to facilitate height adjustment of the lifting plate, the present invention includes an electric push rod. The mounting ends of the two sets of electric push rods are symmetrically installed on the top of the drying equipment body, and the output ends of the two sets of electric push rods are fixedly connected to the top of the corresponding lifting plate.

[0011] Furthermore, to facilitate smooth sliding of the connecting plate, the present invention includes a guide rod, a guide block, and a guide plate. The bottom end of the lifting plate is symmetrically equipped with guide plates, and guide rods are fixedly installed between the guide plates. The guide block is provided with a first through hole, and the guide block slides and fits with the corresponding guide rod through the first through hole. The bottom end of the guide block is symmetrically connected to the top end of the corresponding connecting plate.

[0012] Furthermore, to facilitate scraping and insertion into the coffee bean pile, the present invention features an acute-angled bottom end design for the scraper plate, and the scraper plate's tilt angle is aligned with the scraping direction.

[0013] Furthermore, an improvement of this utility model is that the first motor and the second motor are configured as servo motors.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present invention provides a coffee bean drying device, which has the following beneficial effects:

[0016] Improve drying uniformity

[0017] The coffee beans on the screen are continuously turned over by the reciprocating motion of the scraping mechanism (scraper, reciprocating screw, etc.), which avoids uneven heating caused by local accumulation, reduces the phenomenon of "local over-drying" and "partial under-drying", and improves the taste and quality of coffee beans.

[0018] The angle adjustment mechanism (second motor, fixed base) can dynamically adjust the tilt angle of the scraper to adapt to the turning requirements of different drying stages and further optimize the turning effect.

[0019] Enhance equipment usability and efficiency

[0020] The electric push rod drives the lifting plate to move up and down, and the distance between the scraper and the screen can be adjusted to accommodate coffee bean stacks of different thicknesses, thus improving the equipment's versatility.

[0021] The design of the guide rod and guide block ensures smooth movement of the connecting plate and scraper, reduces shaking, and improves the stability and reliability of the flipping process.

[0022] The servo motors (first motor and second motor) have high control precision and can accurately adjust the scraping speed and angle to achieve intelligent drying control and improve drying efficiency.

[0023] Structural design optimization

[0024] The scraper has an acute angle at the bottom and is tilted in the same direction as the scraping, which makes it easier to insert into the coffee bean pile, reduces the resistance to turning, and avoids damaging the coffee beans.

[0025] The multiple channels allow hot air to pass more smoothly through the coffee bean layer during the tumbling process, enhancing the hot air circulation effect and helping to improve drying efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a coffee bean drying device according to the present invention;

[0027] Figure 2 This is a structural schematic diagram of the main view of a coffee bean drying device according to the present invention;

[0028] Figure 3 This is a schematic diagram of a first part of the structure of a coffee bean drying device according to the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a coffee bean drying device according to the present invention, viewed from the right side.

[0030] In the diagram: 1. Drying equipment body; 2. Screen; 3. Scraper; 4. First motor; 5. Reciprocating screw; 6. Sliding block; 7. Connecting plate; 8. Fixing plate; 9. Lifting plate; 10. Through slot; 11. Second motor; 12. Fixing base; 13. First slot; 14. Electric push rod; 15. Guide rod; 16. Guide block; 17. Guide plate. Detailed Implementation

[0031] 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.

[0032] Please see Figures 1-4 A coffee bean drying device includes a drying device body 1 and a screen 2. A drying component is provided inside the drying device body 1. The screen 2 is fixedly installed in the middle area of ​​the inner wall of the drying device body 1. The drying component is located directly below the screen 2. A scraping mechanism is provided at the top of the screen 2.

[0033] The scraping mechanism also includes a scraping plate 3, a first motor 4, a reciprocating lead screw 5, a sliding block 6, a connecting plate 7, a fixing plate 8, and a lifting plate 9. The scraping plate 3 has multiple sets of through grooves 10 at its bottom end. The lifting plate 9 has two sets of fixing plates 8 fixedly installed at its bottom end. The two sets of fixing plates 8 are rotatably connected to the corresponding reciprocating lead screw 5. The mounting end of the first motor 4 is fixedly installed to the corresponding fixing plate 8. The output end of the first motor 4 is fixedly connected to one side of the corresponding reciprocating lead screw 5. The sliding block 6 is threadedly connected to the corresponding reciprocating lead screw 5. The bottom end of the sliding block 6 is connected to the top end of the corresponding connecting plate 7. The bottom end of the connecting plate 7 is rotatably connected to the corresponding scraping plate 3 through an angle adjustment mechanism.

[0034] When this device is in use

[0035] Initial state preparation

[0036] Equipment installation and commissioning

[0037] The coffee beans are evenly spread on the sieve 2. The height of the lifting plate 9 is adjusted by the electric push rod 14 so that the bottom of the scraper plate 3 maintains a suitable distance from the surface of the coffee beans, "usually slightly lower than the thickness of the pile".

[0038] The tilt angle of the scraper 3 is adjusted by the second motor 11 (e.g., initially set to 10° to 15°) to ensure that it can be effectively inserted into the coffee bean pile.

[0039] Drying process

[0040] Hot air drying start

[0041] The drying components, such as heating elements and fans, are activated to deliver hot air below the screen 2. The hot air flows through the screen 2 to heat and dry the coffee beans.

[0042] Scraping mechanism operation

[0043] The first motor 4 drives the reciprocating screw 5 to rotate, which in turn drives the sliding block 6 to move back and forth along the screw, and through the connecting plate 7, pulls the scraper plate 3 to make horizontal reciprocating motion on the surface of the screen 2.

[0044] During the movement of the scraper plate 3, the coffee beans are turned over by the sharp bottom and the tilt angle, so that the coffee beans at the bottom are turned to the top layer and the coffee beans at the top layer are moved to the bottom, thus realizing the exchange of heating surfaces;

[0045] The passage groove 10 allows coffee beans to pass through, and the use of the first groove 13 allows coffee beans attached to the surface of the scraper plate 3 to pass through, effectively preventing coffee beans from accumulating on the front and back sides of the screen 2.

[0046] Angle adjustment and dynamic adaptation: In the early stage of drying, the coffee beans are highly moist and tightly packed. The tilt angle of the scraper plate 3 can be increased by the second motor 11 (e.g., 20°) to enhance the turning force. In the later stage of drying, the coffee beans become loose, so the angle can be reduced (e.g., 5° to 10°) to avoid excessive turning and damage to the beans.

[0047] Enhanced hot airflow circulation

[0048] During the coffee bean turning process, hot air can penetrate the material layer more evenly through the through groove 10 of the scraper plate 3 and the holes of the screen 2, reducing airflow dead zones and improving drying efficiency.

[0049] Drying End and Unloading

[0050] Stop drying and turning

[0051] Once the preset drying time is reached or the moisture content of the coffee beans meets the standard, the drying components, the first motor 4, and the second motor 11 are turned off, and the hot air supply and scraping action are stopped.

[0052] In practical use, it was found that it was inconvenient to adjust the angle of the scraper plate 3. To solve the above problem, in this embodiment, the angle adjustment mechanism also includes a second motor 11 and a fixed seat 12. The top of the scraper plate 3 is provided with a first groove 13. Two sets of fixed seats 12 are fixedly installed at the bottom of the connecting plate 7. The two sets of fixed seats 12 are rotatably connected to the top of the corresponding scraper plate 3. Two sets of second motors 11 are symmetrically installed on the fixed seat 12. The output ends of the two sets of second motors 11 are rotatably inserted into the fixed seat 12 and fixedly connected to the corresponding fixed plate 8. The scraper plate 3 is rotated and adjusted in the front and back directions so that the scraper plate 3 presents a certain angle with the horizontal direction.

[0053] In actual use, it was found that it was inconvenient to adjust the height of the lifting plate 9. In order to solve the above problem, this embodiment also includes electric push rods 14. The mounting ends of the two sets of electric push rods 14 are symmetrically installed on the top of the dryer body 1, and the output ends of the two sets of electric push rods 14 are fixedly connected to the top of the corresponding lifting plate 9.

[0054] In actual use, it was found that the sliding of the connecting plate 7 was not smooth. To solve the above problem, this embodiment also includes a guide rod 15, a guide block 16 and a guide plate 17. The guide plate 17 is symmetrically installed at the bottom of the lifting plate 9. The guide rod 15 is fixedly installed between the guide plates 17. The guide block 16 is provided with a first through hole. The guide block 16 slides and fits with the corresponding guide rod 15 through the first through hole. The bottom of the guide block 16 is symmetrically connected to the top of the corresponding connecting plate 7.

[0055] In actual use, it was found that it was inconvenient to scrape and insert into the coffee bean pile. In order to solve the above problems, in this embodiment, the bottom end of the scraper plate 3 is designed with an acute angle, and the tilt angle of the scraper plate 3 is consistent with the scraping direction.

[0056] As a preferred embodiment of the above, the first motor 4 and the second motor 11 are configured as servo motors.

[0057] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0058] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0059] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coffee bean drying device, comprising a drying device body (1) and a screen (2), wherein a drying component is provided inside the drying device body (1), the screen (2) is fixedly installed in the middle area of ​​the inner wall of the drying device body (1), the drying component is located directly below the screen (2), and a scraping mechanism is provided at the top of the screen (2); Its features are, The scraping mechanism also includes a scraping plate (3), a first motor (4), a reciprocating screw (5), a sliding block (6), a connecting plate (7), a fixing plate (8), and a lifting plate (9). The scraping plate (3) has multiple sets of through grooves (10) at its bottom end. The lifting plate (9) has two sets of fixing plates (8) fixedly installed at its bottom end. The two sets of fixing plates (8) are rotatably connected to the corresponding reciprocating screw (5). The mounting end of the first motor (4) is fixedly installed to the corresponding fixing plate (8). The output end of the first motor (4) is fixedly connected to one side of the corresponding reciprocating screw (5). The sliding block (6) is threadedly connected to the corresponding reciprocating screw (5). The bottom end of the sliding block (6) is connected to the top end of the corresponding connecting plate (7). The bottom end of the connecting plate (7) is rotatably connected to the corresponding scraping plate (3) through an angle adjustment mechanism.

2. The coffee bean drying equipment according to claim 1, characterized in that, The angle adjustment mechanism also includes a second motor (11) and a fixed seat (12). The top of the scraper (3) is provided with a first groove (13). Two sets of fixed seats (12) are fixedly installed at the bottom of the connecting plate (7). The two sets of fixed seats (12) are rotatably connected to the top of the corresponding scraper (3). Two sets of second motors (11) are symmetrically installed on the fixed seat (12). The output ends of the two sets of second motors (11) are rotatably inserted into the fixed seat (12) and fixedly connected to the corresponding fixed plate (8). The scraper (3) is rotated and adjusted in the front and back directions so that the scraper (3) presents a certain angle with the horizontal direction.

3. The coffee bean drying equipment according to claim 2, characterized in that, It also includes electric push rods (14), the two sets of electric push rods (14) are symmetrically installed at the top of the dryer body (1), and the output ends of the two sets of electric push rods (14) are fixedly connected to the top of the corresponding lifting plate (9).

4. The coffee bean drying equipment according to claim 3, characterized in that, It also includes guide rods (15), guide blocks (16) and guide plates (17). Guide plates (17) are symmetrically installed at the bottom of the lifting plate (9). Guide rods (15) are fixedly installed between the guide plates (17). The guide block (16) is provided with a first through hole. The guide block (16) slides and fits with the corresponding guide rod (15) through the first through hole. The bottom end of the guide block (16) is symmetrically connected to the top end of the corresponding connecting plate (7).

5. The coffee bean drying equipment according to claim 4, characterized in that, The scraper (3) has an acute angle at the bottom, and the direction of the tilt angle of the scraper (3) is consistent with the scraping direction.

6. The coffee bean drying equipment according to claim 5, characterized in that, The first motor (4) and the second motor (11) are configured as servo motors.

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