Coffee bean airing device for coffee processing

Abstract

The utility model discloses a coffee bean airing device for coffee processing, which relates to the technical field of coffee processing and comprises an airing box, a placing base is movably mounted at the bottom of the airing box, a stirring driving mechanism is arranged on the rear side of the airing box, and a filter screen is fixedly mounted above the inner wall of the airing box. The stirring driving mechanism comprises an extension plate, the extension plate is fixedly installed on the rear side of the airing box, a servo motor is fixedly installed at the bottom of the extension plate, an output shaft of the servo motor penetrates through the top of the extension plate and is fixedly provided with a driving rotary disc, and a movable connecting rod is movably installed at the eccentric position of the top of the driving rotary disc. According to the coffee bean air-drying device, the air-drying box, the filter screen, the servo motor, the driving rotary disc, the movable connecting rod, the push rod and the stirring mechanism are matched with one another, so that the stirring efficiency is higher when coffee beans are air-dried, each coffee bean can be air-dried quickly, and the air-drying effect is better.

Description

Technical Field

[0001] This utility model relates to the field of coffee processing technology, specifically to a coffee bean drying device for coffee processing. Background Technology

[0002] Sun-drying is a crucial step in coffee bean processing. Also known as natural processing or drying, sun-drying involves placing harvested coffee cherries in the sun to dehydrate them naturally. This process not only dehydrates the beans, making them easier to store and roast, but also allows for whole-cherry fermentation. This fermentation process retains more substances in the beans, resulting in a richer and more complex flavor profile, with a more pronounced sweetness. During fermentation, microorganisms alter the composition of the coffee beans, producing unique fruity and wine-like aromas. However, existing technologies have the following drawbacks:

[0003] Chinese patent document CN207167711 U discloses a coffee bean drying device, relating to the field of coffee processing equipment. It includes a drying box, a stirring device, and a fan device. The drying box has a hollow interior and is equipped with casters at the bottom. A drying plate is located on top of the drying box. Two fixed seats are located at both ends of the upper surface of the drying box, with a support plate fixedly connected to the second fixed seat. The stirring device includes a servo motor, a guide rail, a lead screw, and a stirring seat. The servo motor is fixedly connected to the upper surface of the support plate. Both ends of the guide rail are fixed to the first and second fixed seats. The left end of the lead screw is connected to the first fixed seat, and the right end passes through the fixed seat and is fixedly connected to the output shaft of the servo motor. Both ends of the stirring seat slide on the guide rail. The lead screw passes through the stirring seat and is threadedly connected to it. The fan device includes a battery and a fan. This invention has a simple structure, good drying effect, and eliminates the need for manual stirring.

[0004] The method described in the aforementioned literature, in which two servo motors drive two lead screws to rotate and thus move the mixing seat to mix the coffee beans, can achieve uniform drying of the coffee beans. However, due to the limited speed at which the lead screws move, the mixing seat using the mixing head will also result in a slow mixing speed of the coffee beans, affecting the drying efficiency. In addition, since the fan device is located at the bottom of the perforated drying plate, coffee bean debris inevitably falls directly onto the fan device during the moving process. After long-term use, a large amount of debris will accumulate inside the drying box, making it inconvenient to clean. Utility Model Content

[0005] This invention provides a coffee bean drying device for coffee processing to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A coffee bean drying device for coffee processing includes a drying box, a base movably mounted on the bottom of the drying box, a stirring drive mechanism disposed on the rear side of the drying box, a filter screen fixedly mounted on the upper inner wall of the drying box, and the stirring drive mechanism including an extension plate fixedly mounted on the rear side of the drying box. A servo motor is fixedly mounted on the bottom of the extension plate, the output shaft of the servo motor extends through to the top of the extension plate and is fixedly mounted on a drive turntable, a movable connecting rod is movably mounted at the eccentric position of the top of the drive turntable, a push rod is movably mounted at the other end of the movable connecting rod, and the other end of the push rod extends through to the inner cavity of the filter screen and is provided with a stirring mechanism located above the filter screen.

[0008] A further improvement of the present invention is that the stirring mechanism includes a top plate, and connecting rods are fixedly installed on the left and right sides of the bottom of the top plate. Trapezoidal bottom-lifting plates are fixedly installed at the bottom ends of the two top plates. Several stirring uprights are evenly fixedly installed on the top of the horizontal part of the trapezoidal bottom-lifting plates. The bottom of the trapezoidal bottom-lifting plates overlaps with the top of the filter screen.

[0009] A further improvement of this utility model is that: the left side of the drying box has an installation hole that penetrates its inner cavity, a fan box is fixedly installed inside the installation hole, a number of exhaust fans are evenly arranged inside the fan box, a ventilation filter is fixedly installed on the left side of the inner ring of the fan box, the ventilation filter is located to the left of the number of exhaust fans, and a number of air outlet holes that penetrate its inner cavity are opened on the right side of the drying box.

[0010] A further improvement of the present invention is that: a pull-out groove penetrating the inner cavity is provided on the left side of the drying box, the pull-out groove is located below the mounting hole, a debris collection drawer is provided at the bottom of the inner cavity of the drying box, and the front end of the debris collection drawer extends through to the inner side of the pull-out groove and is fixedly installed with a pull-out handle.

[0011] A further improvement of this utility model is that: an extension base plate is fixedly installed on the rear side of the placement base, an electric push rod is fixedly installed on the top of the extension base plate, a sliding groove is opened on the front side of the bottom of the extension plate, a sliding rod is fixedly installed between the front and rear sides of the inner wall of the sliding groove, a slider is slidably installed on the outer wall of the sliding rod, and the bottom of the slider is movably connected to the output end of the electric push rod.

[0012] A further improvement of this utility model is that: the front side of the drying box is provided with a discharge hole that penetrates its inner cavity, and the bottom of the inner wall of the discharge hole is on the same horizontal line as the top of the filter screen. A sealing plug is snapped into the inner side of the discharge hole, and a rubber ring is fixedly bonded to the outer wall of the sealing plug. A limiting plate is fixedly installed on the front side of the sealing plug, and a pull block is fixedly installed at the center of the front side of the limiting plate.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a coffee bean drying device for coffee processing. Through the cooperation between the drying box, filter screen, servo motor, drive turntable, movable connecting rod, push rod and stirring mechanism, the stirring efficiency of coffee beans during drying is improved, so that each coffee bean can be dried quickly and the drying effect is better.

[0015] 2. This utility model provides a coffee bean drying device for coffee processing. Through the cooperation of the fan box, exhaust fan, air outlet and debris collection drawer, the coffee beans can be ventilated during drying, while debris and impurities can be collected for easy cleaning.

[0016] 3. This utility model provides a coffee bean drying device for coffee processing. Through the cooperation of the electric push rod, sealing plug, sliding rod and slider, the entire drying box can be tilted to facilitate the quick collection of dried coffee beans and improve collection efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the stirring drive mechanism of this utility model.

[0019] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model.

[0020] Figure 4 This is a schematic diagram of the fan box structure of this utility model;

[0021] Figure 5 This is a bottom view of the extension plate of the present invention.

[0022] Figure 6 This is a schematic diagram of the sealing plug structure of this utility model.

[0023] In the diagram: 1. Drying box; 11. Filter screen; 12. Mounting hole; 13. Fan box; 131. Exhaust fan; 132. Ventilation filter screen; 14. Air outlet; 15. Pull-out slot; 16. Debris collection drawer; 161. Pull-out handle; 17. Discharge hole; 171. Sealing plug; 172. Rubber ring; 173. Limiting plate; 174. Pull-out block; 2. Placement base; 21. Extended base plate; 22. Electric push rod; 3. Mixing drive mechanism; 31. Extended plate; 311. Slide groove; 312. Slide rod; 313. Sliding block; 32. Servo motor; 33. Drive turntable; 34. Movable connecting rod; 35. Push rod; 36. Mixing mechanism; 361. Top plate; 362. Connecting rod; 363. Trapezoidal bottom plate; 364. Mixing upright. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, this utility model provides a coffee bean drying device for coffee processing, including a drying box 1. A base 2 is movably installed at the bottom of the drying box 1. A stirring drive mechanism 3 is provided on the rear side of the drying box 1. A filter screen 11 is fixedly installed on the upper part of the inner wall of the drying box 1. The stirring drive mechanism 3 includes an extension plate 31, which is fixedly installed on the rear side of the drying box 1. A servo motor 32 is fixedly installed at the bottom of the extension plate 31. The output shaft of the servo motor 32 extends through to the top of the extension plate 31 and a drive turntable 33 is fixedly installed thereon. A drive turntable 33 is movably installed at the eccentric top of the drive turntable 33. There is a movable connecting rod 34, and a push rod 35 is movably installed at the other end of the movable connecting rod 34. The other end of the push rod 35 passes through the inner cavity of the filter screen 11 and is provided with a stirring mechanism 36. The stirring mechanism 36 is located above the filter screen 11. The stirring mechanism 36 includes a top plate 361. Connecting rods 362 are fixedly installed on both the left and right sides of the bottom of the top plate 361. Trapezoidal bottom-lifting plates 363 are fixedly installed at the bottom of the two top plates 361. Several stirring uprights 364 are evenly fixedly installed at the top of the horizontal part of the trapezoidal bottom-lifting plate 363. The bottom of the trapezoidal bottom-lifting plate 363 overlaps with the top of the filter screen 11.

[0026] During drying, coffee beans are poured onto the top of the filter screen 11 inside the drying box 1. Then, the servo motor 32 at the bottom of the extension plate 31 is activated to drive the overall drive turntable 33 to rotate. This causes the movable connecting rod 34 at the top to rotate while pushing the push rod 35 forward. When the rotation is reset, the push rod 35 is pulled back, achieving a reciprocating motion. At the same time, when the stirring mechanism 36 moves, it uses the trapezoidal bottom-scooping plate 363 at the bottom of the top plate 361 to scoop the coffee beans on the filter screen 11 and distributes them evenly through several stirring uprights 364, so that each coffee bean can be dried, resulting in more uniform drying.

[0027] like Figure 4 As shown, the left side of the drying box 1 has an installation hole 12 that penetrates its inner cavity. A fan box 13 is fixedly installed inside the installation hole 12. Several exhaust fans 131 are evenly arranged inside the fan box 13. A ventilation filter 132 is fixedly installed on the left side of the inner ring of the fan box 13. The ventilation filter 132 is located to the left of the several exhaust fans 131. Several air outlet holes 14 that penetrate its inner cavity are opened on the right side of the drying box 1. A pull-out groove 15 that penetrates its inner cavity is opened on the left side of the drying box 1. The pull-out groove 15 is located below the installation hole 12. A debris collection drawer 16 is provided at the bottom of the inner cavity of the drying box 1. The front end of the debris collection drawer 16 extends through to the inside of the pull-out groove 15 and is fixedly installed with a pull-out handle 161.

[0028] By activating the exhaust fans 131 inside the fan box 13 within the mounting hole 12, external air is filtered through the ventilation filter 132 and blown into the inner cavity of the drying box 1, and then blown out to the outside through the air outlet 14. This improves the ventilation effect at the bottom of the coffee beans above the filter 11, and the crumbs that fall when the coffee beans are stirred will not affect the exhaust fans 131, and can all fall into the inner cavity of the crumb collection drawer 16. After drying, the crumb collection drawer 16 can be pulled out through the pull slot 15 using the pull handle 161, making it convenient to clean the crumbs inside.

[0029] like Figure 5 , Figure 6 As shown, an extended base plate 21 is fixedly installed on the rear side of the base 2. An electric push rod 22 is fixedly installed on the top of the extended base plate 21. A sliding groove 311 is opened on the front side of the bottom of the extended plate 31. A sliding rod 312 is fixedly installed between the front and rear sides of the inner wall of the sliding groove 311. A slider 313 is slidably installed on the outer wall of the sliding rod 312. The bottom of the slider 313 is movably connected to the output end of the electric push rod 22. A discharge hole 17 is opened on the front side of the drying box 1, which penetrates its inner cavity. The bottom of the inner wall of the discharge hole 17 is on the same horizontal line as the top of the filter screen 11. A sealing plug 171 is snapped into the inner side of the discharge hole 17. A rubber ring 172 is fixedly bonded to the outer wall of the sealing plug 171. A limiting plate 173 is fixedly installed on the front side of the sealing plug 171. A pull block 174 is fixedly installed at the center of the front side of the limiting plate 173.

[0030] When the drying process is complete and the coffee beans need to be collected, simply activate the electric push rod 22 at the top of the extended base plate 21 to raise the slider 313 while it slides against the outer wall of the slide rod 312 in the slide groove 311. This utilizes the movable connection between the drying box 1 and the front side of the placement base 2 to lift the rear side of the drying box 1, causing it to tilt. By pinching the pull block 174 and pulling the limiting plate 173, the sealing plug 171 stuck in the discharge hole 17 can be pulled out, allowing the coffee beans on the filter 11 to be concentrated and discharged from the discharge hole 17 under the action of gravity, making collection convenient. After collection, the sealing plug 171 is aligned with the discharge hole 17 and inserted until the limiting plate 173 abuts against the front side of the drying box 1. The rubber ring 172 is used to improve the stability after insertion.

[0031] The working principle of this coffee bean drying device for coffee processing will be explained in detail below.

[0032] like Figure 1-5As shown, during drying, coffee beans are poured onto the top of the filter screen 11 inside the drying chamber 1. Then, the servo motor 32 at the bottom of the extension plate 31 is activated, which drives the overall drive turntable 33 to rotate. This causes the movable connecting rod 34 at the top to rotate while pushing the push rod 35 forward. When the rotation returns to its original position, the push rod 35 is pulled back, achieving a reciprocating motion. At the same time, when the stirring mechanism 36 moves, the trapezoidal bottom-scooping plate 363 at the bottom of the top plate 361 can scoop up the coffee beans on the filter screen 11 and distribute them evenly through several stirring uprights 364, so that each coffee bean can be dried evenly. During drying, several exhaust fans 131 inside the fan box 13 in the mounting hole 12 can also be activated to blow outside air into the inner cavity of the drying chamber 1 after being filtered by the ventilation filter screen 132, and then blown out to the outside through the air outlet 14. This improves the ventilation effect at the bottom of the coffee beans above the filter screen 11, and the debris falling from the coffee beans during stirring will not affect the exhaust. The dust collector 131 can collect all the dust particles into the dust collection drawer 16. After drying, the dust collection drawer 16 can be pulled out through the pull-out groove 15 using the pull handle 161, making it easy to clean the dust particles inside. When it is time to collect the coffee beans after drying, simply activate the electric push rod 22 at the top of the extension base 21 to raise the slider 313 while it slides against the outer wall of the slide rod 312 in the slide groove 311, thereby utilizing the movement of the drying box 1 and the front of the placement base 2. The connection lifts the rear of the drying box 1, tilting the entire box. By pinching the pull block 174 and pulling the limiting plate 173, the sealing plug 171, which is stuck in the discharge hole 17, can be pulled out. This allows the coffee beans on the filter screen 11 to be discharged from the discharge hole 17 under gravity, making them easy to collect. After collection, the sealing plug 171 is aligned with the discharge hole 17 and inserted until the limiting plate 173 is against the front of the drying box 1. The rubber ring 172 is used to improve the stability after insertion.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A coffee bean drying device for coffee processing, comprising a drying box (1), characterized in that: A base (2) is movably installed at the bottom of the drying box (1). A stirring drive mechanism (3) is provided at the rear side of the drying box (1). A filter screen (11) is fixedly installed on the upper part of the inner wall of the drying box (1). The stirring drive mechanism (3) includes an extension plate (31). The extension plate (31) is fixedly installed at the rear side of the drying box (1). A servo motor (32) is fixedly installed at the bottom of the extension plate (31). The output shaft of the servo motor (32) passes through to the top of the extension plate (31) and is fixedly installed on a drive turntable (33). A movable connecting rod (34) is movably installed at the eccentric top of the drive turntable (33). A push rod (35) is movably installed at the other end of the movable connecting rod (34). The other end of the push rod (35) passes through to the inner cavity of the filter screen (11) and is provided with a stirring mechanism (36). The stirring mechanism (36) is located above the filter screen (11).

2. The coffee bean drying device for coffee processing according to claim 1, characterized in that: The stirring mechanism (36) includes a top plate (361), and connecting rods (362) are fixedly installed on the bottom left and right sides of the top plate (361). Trapezoidal bottom-lifting plates (363) are fixedly installed at the bottom ends of the two top plates (361). Several stirring uprights (364) are evenly fixedly installed on the top of the horizontal part of the trapezoidal bottom-lifting plate (363). The bottom of the trapezoidal bottom-lifting plate (363) overlaps with the top of the filter screen (11).

3. The coffee bean drying device for coffee processing according to claim 1, characterized in that: The drying box (1) has an installation hole (12) on its left side that penetrates its inner cavity. A fan box (13) is fixedly installed inside the installation hole (12). A number of exhaust fans (131) are evenly arranged in the inner cavity of the fan box (13). A ventilation filter (132) is fixedly installed on the left side of the inner ring of the fan box (13). The ventilation filter (132) is located to the left of the number of exhaust fans (131). A number of air outlet holes (14) that penetrate its inner cavity are opened on the right side of the drying box (1).

4. The coffee bean drying device for coffee processing according to claim 3, characterized in that: The drying box (1) has a pull-out groove (15) that runs through its inner cavity on the left side. The pull-out groove (15) is located below the mounting hole (12). The bottom of the inner cavity of the drying box (1) is provided with a debris collection drawer (16). The front end of the debris collection drawer (16) extends through the inner side of the pull-out groove (15) and is fixedly installed with a pull-out handle (161).

5. The coffee bean drying device for coffee processing according to claim 1, characterized in that: An extension base plate (21) is fixedly installed on the rear side of the placement base (2). An electric push rod (22) is fixedly installed on the top of the extension base plate (21). A sliding groove (311) is opened on the front side of the bottom of the extension plate (31). A sliding rod (312) is fixedly installed between the front and rear sides of the inner wall of the sliding groove (311). A slider (313) is slidably installed on the outer wall of the sliding rod (312). The bottom of the slider (313) is movably connected to the output end of the electric push rod (22).

6. The coffee bean drying device for coffee processing according to claim 1, characterized in that: The drying box (1) has a discharge hole (17) that runs through its inner cavity on the front side. The bottom of the inner wall of the discharge hole (17) is on the same horizontal line as the top of the filter screen (11). A sealing plug (171) is snapped into the inner side of the discharge hole (17). A rubber ring (172) is fixedly bonded to the outer wall of the sealing plug (171). A limiting plate (173) is fixedly installed on the front side of the sealing plug (171). A pull block (174) is fixedly installed at the center of the front side of the limiting plate (173).

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