Coffee berry spin-drying and throwing machine

Abstract

The utility model relates to the field of food processing, in particular to a coffee berry spin-drying and throwing machine which comprises a machine frame, a driving device, a spin-drying device and a conveying device, a feeding opening is formed in the first end of an outer cylinder, and the driving device comprises a driving motor assembly and a driving shaft set driven by the driving motor assembly. The spin-drying device comprises a net cylinder rotationally arranged in the outer cylinder, the net cylinder is fixedly connected with the inner shaft, the conveying device comprises a spiral blade and a throwing assembly, the throwing assembly comprises a throwing cylinder with an inner cavity communicating with the spiral conveying channel and an impeller rotationally arranged in the inner cavity of the throwing cylinder, and a throwing pipe communicating with the inner cavity is formed on the circumferential wall of the throwing cylinder; the impeller is fixedly connected with the outer shaft so as to realize rotation and form air flow for throwing the dried coffee cherries after spin-drying in the throwing cylinder, and the dried coffee cherries are sent out from the throwing pipe along with the air flow. The technical problem that a horizontal dewatering mechanism independently arranged for coffee cherries is lacked at present is solved.

Description

Technical Field

[0001] The utility model relates to the field of food processing, and particularly relates to a coffee fruit drying and conveying machine. Background Art

[0002] The diameter of mature coffee fruits is about 1.5 - 2 cm, and the shape is round or slightly oval. Currently, there is no separately set coffee fruit dehydrator, and mostly vegetable dehydrators are used. However, most of the existing vegetable dehydrators are vertical structures, with too high overall height and inconvenient use. Therefore, it is necessary to propose a horizontal dehydration mechanism specifically for coffee fruits. Summary of the Invention

[0003] In order to solve the technical problem that there is currently a lack of a horizontal dehydration mechanism specifically for coffee fruits, this application proposes a coffee fruit drying and conveying machine, which solves the above technical problems.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] The utility model provides a coffee fruit drying and conveying machine, including: a frame, on which a horizontally arranged outer cylinder is configured, and a feeding port is formed at the first end of the outer cylinder; a driving device, which includes a driving motor assembly and a driving shaft group driven by the driving motor assembly, the driving motor assembly is configured at the second end of the outer cylinder, the driving shaft group extends into the outer cylinder, the driving shaft group includes an outer shaft and an inner shaft arranged coaxially with different rotation speeds, and the rotation speed of the outer shaft is higher than that of the inner shaft; a drying device, which includes a mesh cylinder rotatably configured in the outer cylinder, and the mesh cylinder is fixedly connected with the inner shaft;

[0006] A conveying device, which includes a spiral blade and a conveying component, the spiral blade is rotatably configured in the mesh cylinder, the spiral blade is fixedly connected with the outer shaft to realize rotation and form a spiral conveying channel for drying wet coffee fruits in the mesh cylinder, one end of the spiral conveying channel is communicated with the feeding port, and the other end is communicated with the conveying component, the conveying component includes a conveying cylinder with an inner cavity communicated with the spiral conveying channel and an impeller rotatably configured in the inner cavity of the conveying cylinder, a conveying pipe communicated with the inner cavity is formed on the peripheral wall of the conveying cylinder, the impeller is fixedly connected with the outer shaft to realize rotation and form an air flow for conveying dried coffee fruits after drying in the conveying cylinder, and the dried coffee fruits are sent out from the conveying pipe along with the air flow.

[0007] Further, one end of the inner shaft extends all the way into one end of the mesh cylinder near the feeding port. A conical sleeve is fixedly connected to the first end of the mesh cylinder. The outer ring of the wide end of the conical sleeve is fixedly connected to the mesh cylinder through a flange edge. A connecting ring is provided on the inner ring of the wide end of the conical sleeve. A connecting hole is opened at the axis of the connecting ring. A expansion sleeve is arranged in the connecting hole. The connecting ring is fixedly sleeved on one end of the inner shaft through the expansion sleeve. One side of the connecting ring is fixedly connected to the inner wall of the conical sleeve through a plurality of sheets. The inner space of the conical sleeve forms a buffer cavity. The buffer cavity is formed between the feeding port and the spiral conveying channel. A gap is left between the outer periphery of the connecting ring and the inner wall of the conical sleeve for the wet coffee fruits to pass through. Correspondingly, the shape of the first end of the outer cylinder is adapted to the conical sleeve to accommodate the conical sleeve.

[0008] Further, a plurality of axial positioning grooves are arranged between the outer wall of the inner shaft of the drive shaft group and the inner wall of the outer shaft. An inner bearing with guiding functions on both the inner and outer walls is arranged in each axial positioning groove to support and position the outer shaft.

[0009] Further, the throwing cylinder includes a cylinder body. A cover plate is arranged at the first end of the cylinder body near the driving device. The second end of the cylinder body is open. An insertion edge inserted into the second end of the outer cylinder is provided at the open end. Correspondingly, a slot cooperating with the insertion edge is provided at the second end of the outer cylinder. A sealing ring is arranged in the slot.

[0010] Further, a throwing cylinder rotation module is also provided. The throwing cylinder rotation module includes a handwheel assembly. The handwheel assembly includes a handle shaft arranged on the housing of the driving device. One end of the handle shaft extends out of the housing and is provided with a handle. A worm is arranged at the other end of the handle shaft. A worm gear is engaged with the teeth of the worm. The worm gear is fixed to one end of a connecting rod. A driving wheel is fixed to the other end of the connecting rod. The driving wheel extends to the cover plate. An internal gear ring is fixed to the side of the cover plate away from the outer cylinder. The internal gear ring is engaged with the driving wheel.

[0011] Furthermore, a throwing cylinder locking module is also configured. The throwing cylinder locking module includes: a locking disc. An edge of the side of the cover plate away from the outer cylinder extends away from the cylinder body of the throwing cylinder to form a ring edge, and the ring edge is folded inward toward the inside where the axis is located to form the locking disc. A plurality of locking holes are configured on the locking disc; a locking sleeve fixed on the housing of the driving device; a locking pin axially slidably configured in the locking sleeve. A locking tongue for inserting into the locking hole is formed at one end of the locking pin; a locking spring. One end of the locking sleeve away from the locking disc is narrowed inward to form a limiting ring. A circumferentially outwardly expanding convex ring is formed on the locking pin, and the convex ring is limited by the limiting ring so that the convex ring is restricted to move within the locking sleeve. The locking spring is configured between the limiting ring and the convex ring. The elastic force of the locking spring in the natural state acts on the convex ring to keep the locking tongue on the locking pin within the locking hole; an unlocking rod. The middle section of the unlocking rod is hinged on the housing of the driving device. One end of the unlocking rod is hinged to the end of the locking pin away from the locking tongue, and the other end of the unlocking rod extends out of the housing of the driving device and is configured with a handle.

[0012] Furthermore, the throwing pipe extends along the tangential direction of the cylinder body of the throwing cylinder. Both ends of the throwing pipe are connecting ends. The inner diameter of the middle section of the throwing pipe is slightly narrowed inward. Air supply holes are provided at the transition between the middle section and the connecting ends. High-speed air flow forms a negative pressure in the throwing pipe and sucks in external air through the air supply holes.

[0013] Furthermore, an observation port is configured on the connecting end of the throwing pipe close to the cylinder body of the throwing cylinder, and a transparent observation mirror is detachably assembled at the observation port.

[0014] Furthermore, the driving motor assembly includes: a driving motor. A driving belt is configured on the driving shaft of the driving motor; a rotating shaft driven by the driving belt. A first gear and a second gear with different numbers of teeth are fixed on the rotating shaft. The first gear meshes with a third gear, the third gear meshes with a fourth gear fixed on the outer shaft, the second gear meshes with a fifth gear, and the fourth gear meshes with a sixth gear fixed on the inner shaft. The third gear and the fifth gear are configured on a rotating pin.

[0015] Furthermore, the drying device further includes a water outlet groove configured below the mesh cylinder.

[0016] Based on the above technical solutions, the technical effects that the present utility model can achieve are:

[0017] For the coffee fruit drying and throwing machine of the present application, wet coffee fruits are input from the feeding port of the outer cylinder, and then the wet coffee fruits enter the mesh cylinder of the drying device. The mesh cylinder rotates driven by the inner shaft. Under the action of centrifugal force, the wet coffee fruits adhere to the inner wall of the mesh cylinder, and the water on the wet coffee fruits is thrown out of the mesh cylinder through the mesh holes of the mesh cylinder. At the same time, the spiral blade in the mesh cylinder rotates driven by the outer shaft. Since the rotation speed of the outer shaft is higher than that of the inner shaft, that is, the rotation speed of the spiral blade is higher than that of the mesh cylinder, the dried coffee fruits can still be pushed by the spiral blade. After being pushed, the dried coffee fruits enter the throwing cylinder. The impeller in the inner cavity of the throwing cylinder rotates driven by the outer shaft to generate air flow, and the dried coffee fruits are sent out from the throwing pipe of the throwing cylinder along with the air flow, completing the coffee fruit drying and throwing machine, thus solving the technical problem that there is currently a lack of a horizontal dehydration mechanism specifically set for coffee fruits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the coffee fruit drying and throwing machine of the present application;

[0019] Figure 2 is the sectional view of the coffee fruit drying and throwing machine of the present application;

[0020] Figure 3 is Figure 2 the partial enlarged view of part A in

[0021] Figure 4 is the schematic diagram of the driving device of the coffee fruit drying and throwing machine of the present application;

[0022] Figure 5 is the schematic diagram of the coffee fruit drying and throwing machine of the present application with the housing hidden;

[0023] Figure 6 is the schematic diagram of another perspective of the coffee fruit drying and throwing machine of the present application with the housing hidden;

[0024] Figure 7 is the partial schematic diagram of the throwing cylinder locking module of the coffee fruit drying and throwing machine of the present application;

[0025] Figure 8 is the schematic diagram of the coffee fruit drying and throwing machine of the present application with part of the outer cylinder hidden;

[0026] Figure 9 is the schematic diagram at the observation port of the coffee fruit drying and throwing machine of the present application.

[0027] Wherein: 1 - frame, 11 - outer cylinder, 111 - feeding port, 112 - slot, 113 - sealing ring, 12 - tapered sleeve, 121 - connecting ring, 122 - expansion sleeve, 123 - sheet body, 124 - roller;

[0028] 2 - Driving device, 21 - Outer shaft, 22 - Inner shaft, 23 - Inner bearing, 24 - Outer bearing, 25 - Housing, 26 - Driving motor, 261 - Driving belt, 262 - Rotating shaft, 263 - First gear, 264 - Second gear, 265 - Third gear, 266 - Fourth gear, 267 -

[0029] Fifth gear, 268 - Sixth gear, 269 - Rotating pin;

[0030] 3 - Drying device, 31 - Mesh drum, 32 - Water outlet trough, 33 - Drain pipe;

[0031] 4 - Conveying device, 41 - Screw blade, 411 - Material distributing piece, 42 - Throwing cylinder, 421 - Cover plate, 422 - Inserted edge, 43 - Impeller, 44 - Throwing pipe, 441 - Air supply hole, 442 - Observation port, 45 - Handwheel assembly, 451 - Handle shaft, 452 - Handle, 453 - Worm, 454 - Worm gear, 455 - Connecting rod, 456 - Driving wheel, 457 - Internal gear ring; 46 - Throwing cylinder locking module, 461 - Locking disc, 462 - Locking sleeve, 4621 - Limiting ring, 463 - Locking pin, 4631 - Lock tongue, 4632 - Convex ring, 464 - Lock spring, 465 - Unlocking rod. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present utility model and its application or use. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0033] It should be noted that the terms used here are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "comprise" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.

[0034] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are usually based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present utility model and simplifying the description. Without contrary statements, these orientation terms do not indicate or imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the protection scope of the present utility model; the orientation terms "inner, outer" refer to the inside and outside relative to the contour of each component itself.

[0036] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. can be used here to describe the spatial positional relationships of a device or feature shown in the drawings with other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientations described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0037] In addition, it should be noted that the use of words such as "first", "second", etc. to limit the components is only for the convenience of distinguishing the corresponding components. Without further statements, the above words have no special meanings. Therefore, they should not be construed as limiting the protection scope of the present utility model.

[0038] Such asFigures 1-9 As shown in the figure, the present application provides a coffee fruit drying and conveying machine, which includes a frame 1, a driving device 2, a drying device 3 and a conveying device 4. The bottom of the frame 1 is equipped with rollers 124, and a horizontally arranged outer cylinder 11 is configured on the frame 1. A feeding port 111 is formed at the first end of the outer cylinder 11. The driving device 2 includes a driving motor 26 assembly and a driving shaft group driven by the driving motor 26 assembly. The driving motor 26 assembly is configured at the second end of the outer cylinder 11, and the driving shaft group extends into the outer cylinder 11. The driving shaft group includes an outer shaft 21 and an inner shaft 22 arranged coaxially with different rotational speeds. The rotational speed of the outer shaft 21 is higher than that of the inner shaft 22. The drying device 3 includes a mesh cylinder 31 rotatably arranged in the outer cylinder 11. The mesh cylinder 31 is fixedly connected to the inner shaft 22. The conveying device 4 includes a spiral blade 41 and a conveying assembly. The spiral blade 41 is rotatably arranged in the mesh cylinder 31. The spiral blade 41 is fixedly connected to the outer shaft 21 to rotate and form a spiral conveying channel in the mesh cylinder 31 for drying the wet coffee fruits. One end of the spiral conveying channel is communicated with the feeding port 111, and the other end is communicated with the conveying assembly. The conveying assembly includes a conveying cylinder 42 with an inner cavity communicated with the spiral conveying channel and an impeller 43 rotatably arranged in the inner cavity of the conveying cylinder 42. A conveying pipe 44 communicated with the inner cavity is formed on the peripheral wall of the conveying cylinder 42. The impeller 43 is fixedly connected to the outer shaft 21 to rotate and form an air flow for conveying the dried coffee fruits in the conveying cylinder 42. The dried coffee fruits are sent out from the conveying pipe 44 along with the air flow.

[0039] In the coffee fruit drying and conveying machine of the present application, the wet coffee fruits are input from the feeding port 111 of the outer cylinder 11, and then the wet coffee fruits enter the mesh cylinder 31 of the drying device 3. The mesh cylinder 31 rotates under the drive of the inner shaft 22. The wet coffee fruits adhere to the inner wall of the mesh cylinder 31 under the action of centrifugal force. The water on the wet coffee fruits is thrown out of the mesh cylinder 31 from the mesh holes of the mesh cylinder 31. At the same time, the spiral blade 41 in the mesh cylinder 31 rotates under the drive of the outer shaft 21. Since the rotational speed of the outer shaft 21 is higher than that of the inner shaft 22, that is, the rotational speed of the spiral blade 41 is higher than that of the mesh cylinder 31, the wet coffee fruits can still be pushed by the spiral blade 41. After being pushed, the dried coffee fruits enter the conveying cylinder 42. The impeller 43 in the inner cavity of the conveying cylinder 42 rotates under the drive of the outer shaft 21 to generate an air flow. The dried coffee fruits are sent out from the conveying pipe 44 of the conveying cylinder 42 along with the air flow, completing the coffee fruit drying and conveying machine, thus solving the technical problem that there is currently a lack of a horizontal dehydration mechanism specifically for coffee fruits.

[0040] In order to facilitate the discharge of the water flowing out of the mesh cylinder 31, the drying device 3 further includes a water outlet tank 32 arranged below the mesh cylinder 31, and a drain pipe 33 is configured at the bottom of the water outlet tank 32.

[0041] Preferably, a buffer chamber is disposed between the feeding port 111 and the mesh cylinder 31 so that the wet coffee fruits input from the feeding port 111 can be buffered in the buffer chamber, making the whole process smoother. To set up the buffer chamber, specifically, one end of the inner shaft 22 extends all the way into one end of the mesh cylinder 31 close to the feeding port 111. A tapered sleeve 12 is fixedly connected to the first end of the mesh cylinder 31. The outer ring of the wide end of the tapered sleeve 12 is fixedly connected to the mesh cylinder 31 through a flange edge. A connecting ring 121 is provided on the inner ring of the wide end of the tapered sleeve 12. A connecting hole is opened at the axis of the connecting ring 121. A expansion sleeve 122 is disposed in the connecting hole. The connecting ring 121 is fixedly sleeved on one end of the inner shaft 22 through the expansion sleeve 122. One side of the connecting ring 121 is fixedly connected to the inner wall of the tapered sleeve 12 through a plurality of sheet bodies 123. The inner space of the tapered sleeve 12 forms a buffer chamber, which is formed between the feeding port 111 and the spiral conveying channel. A gap is left between the outer periphery of the connecting ring 121 and the inner wall of the tapered sleeve 12 for the wet coffee fruits to pass through. Correspondingly, the shape of the first end of the outer cylinder 11 is adapted to the tapered sleeve 12 to accommodate the tapered sleeve 12.

[0042] Further, in order to enable the wet coffee fruits flowing from the buffer chamber to better enter the inner wall of the mesh cylinder 31, a distributing piece 411 is disposed at the inlet end of the spiral conveying channel of the spiral blade 41.

[0043] In order to better assemble the outer shaft 21 and the inner shaft 22 on the frame 1, a plurality of axial positioning grooves are disposed between the outer wall of the inner shaft 22 of the drive shaft group and the inner wall of the outer shaft 21. An inner bearing 23 with guiding functions on both the inner and outer walls is disposed in each axial positioning groove to support and position the outer shaft 21. At the same time, a plurality of outer bearings 24 are also fixed on the frame 1. The inner wall surface of the outer bearing 24 cooperates with the outer wall surface of the outer shaft 21 to support and position the outer shaft 21.

[0044] The manufacturing processes of coffee fruits are different, and the equipment for the subsequent processes of coffee fruits is also different. Some equipment for subsequent processes is on the same floor as the coffee fruit drying and throwing machine, and some are on different floors, mostly on the upper floor. Therefore, the throwing cylinder 42 needs to be configured to be rotatable so as to adjust the position of the discharge port of the throwing pipe 44, so that the discharge port of the throwing pipe 44 can be on the same floor or on different floors. Specifically, the throwing cylinder 42 includes a cylinder body. A cover plate 421 is disposed at the first end of the cylinder body close to the driving device 2. The second end of the cylinder body is open, and an insertion edge 422 inserted into the second end of the outer cylinder 11 is provided at the open end. Correspondingly, a slot 112 cooperating with the insertion edge 422 is provided at the second end of the outer cylinder 11. A sealing ring 113 is disposed in the slot 112. In this way, there is no fixed connection relationship between the throwing cylinder 42 and the outer cylinder 11. It is only connected by the clamping between the insertion edge 422 and the slot 112, and the throwing cylinder 42 can rotate relative to the outer cylinder 11 under the action of an external force.

[0045] To rotate the feeding cylinder 42, the coffee fruit drying and feeding machine of the present application is also equipped with a feeding cylinder 42 rotation module. The feeding cylinder 42 rotation module includes a handwheel assembly 45. The handwheel assembly 45 includes a handle shaft 451 disposed on the housing 25 of the driving device 2. One end of the handle shaft 451 extends out of the housing 25 and is provided with a handle 452. The other end of the handle shaft 451 is provided with a worm 453. A worm gear 454 is engaged with the teeth of the worm 453. The worm gear 454 is fixed to one end of a connecting rod 455. A driving wheel 456 is fixed to the other end of the connecting rod 455. The driving wheel 456 extends into the cover plate 421. An internal gear ring 457 is fixed to the side of the cover plate 421 away from the outer cylinder 11. The internal gear ring 457 is engaged with the driving wheel 456. The feeding cylinder 42 can be rotated by rotating the handle 452.

[0046] After the feeding cylinder 42 is rotated, in order to keep the feeding cylinder 42 at this angle, the coffee fruit drying and feeding machine of the present application is also equipped with a feeding cylinder locking module 46. The feeding cylinder locking module 46 includes a locking disc 461, a locking sleeve 462, a locking pin 463, a locking spring 464 and an unlocking rod 465. A rim extends from the edge of the side of the cover plate 421 away from the outer cylinder 11 towards the inside of the feeding cylinder 42. The rim is folded towards the inside of the axis to form the locking disc 461. A plurality of locking holes are provided on the locking disc 461. The locking sleeve 462 is fixed to the housing 25 of the driving device 2. The locking pin 463 is axially slidably disposed in the locking sleeve 462. A locking tongue 4631 for inserting into the locking hole is formed at one end of the locking pin 463. The end of the locking sleeve 462 away from the locking disc 46 becomes narrower inward to form a limiting ring 4621. A circumferentially outwardly expanding convex ring 4632 is formed on the locking pin 463. The convex ring 4632 is limited by the limiting ring 4621 and is thus restricted to move within the locking sleeve 462. The locking spring 464 is disposed between the limiting ring 4621 and the convex ring 4632. The elastic force of the locking spring 464 in the natural state acts on the convex ring 4632 to keep the locking tongue 4631 on the locking pin 463 in the locking hole. The middle section of the unlocking rod 465 is hinged to the housing 25 of the driving device 2. One end of the unlocking rod 465 is hinged to the end of the locking pin 463 away from the locking tongue 4631. The other end of the unlocking rod 465 extends out of the housing 25 of the driving device 2 and is provided with a handle.

[0047] To better feed the dried coffee fruits by the feeding pipe 44, the feeding pipe 44 extends along the tangential direction of the cylinder body of the feeding cylinder 42. Both ends of the feeding pipe 44 are connecting ends. The inner diameter of the middle section of the feeding pipe 44 is slightly inwardly constricted. Air supply holes 441 are provided at the transition between the middle section and the connecting ends. High-speed airflow forms a negative pressure in the feeding pipe 44 to suck in outside air through the air supply holes 441.

[0048] For convenient observation, an observation port 442 is provided on the connecting end of the feeding pipe 44 close to the cylinder body of the feeding cylinder 42. A transparent observation mirror is detachably assembled at the observation port 442.

[0049] In order to achieve differential rotation of the outer shaft 21 and the inner shaft 22, the drive motor 26 assembly includes a drive motor 26 and a rotating shaft 262. A drive belt 261 is disposed on the drive shaft of the drive motor 26. The rotating shaft 262 is driven by the drive belt 261 and is rotatably disposed on the housing 25. The rotating shaft 262 is provided with a first gear 263 and a second gear 264 having different numbers of teeth fixed thereon. The first gear 263 meshes with a third gear 265, and the third gear 265 meshes with a fourth gear 266 fixed on the outer shaft 21. The second gear 264 meshes with a fifth gear 267, and the fourth gear 266 meshes with a sixth gear 268 fixed on the inner shaft 22. The third gear 265 and the fifth gear 267 are disposed on a rotating pin 269, and the rotating pin 269 is rotatably disposed on the housing 25.

[0050] It should be understood that the specific embodiments described above are only used to explain the present invention and are not used to limit the present invention. Obvious changes or variations derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A coffee fruit drying and conveying machine, characterized in that, Comprising: A frame (1) with a horizontally arranged outer cylinder (11) configured thereon, and a feeding port (111) formed at the first end of the outer cylinder (11); A driving device (2) including a driving motor (26) assembly and a driving shaft group driven by the driving motor (26) assembly. The driving motor (26) assembly is configured at the second end of the outer cylinder (11), and the driving shaft group extends into the outer cylinder (11). The driving shaft group includes an outer shaft (21) and an inner shaft (22) that penetrate the outer shaft (21) and are coaxially arranged with different rotation speeds. The rotation speed of the outer shaft (21) is higher than that of the inner shaft (22); A drying device (3) including a net cylinder (31) rotatably configured in the outer cylinder (11), and the net cylinder (31) is fixedly connected to the inner shaft (22); A conveying device (4) including a spiral blade (41) and a throwing assembly. The spiral blade (41) is rotatably configured in the net cylinder (31), and the spiral blade (41) is fixedly connected to the outer shaft (21) to rotate and form a spiral conveying channel in the net cylinder (31) for drying wet coffee fruits. One end of the spiral conveying channel communicates with the feeding port (111), and the other end communicates with the throwing assembly. The throwing assembly includes a throwing cylinder (42) with an inner cavity communicating with the spiral conveying channel and an impeller (43) rotatably configured in the inner cavity of the throwing cylinder (42). A throwing pipe (44) communicating with the inner cavity is formed on the peripheral wall of the throwing cylinder (42). The impeller (43) is fixedly connected to the outer shaft (21) to rotate and form an air flow for throwing and drying dried coffee fruits in the throwing cylinder (42). The dried coffee fruits are sent out from the throwing pipe (44) along with the air flow.

2. The coffee fruit drying and throwing machine according to claim 1, characterized in that, One end of the inner shaft (22) extends all the way to the end of the net cylinder (31) close to the feeding port (111). A conical sleeve (12) is fixedly connected to the first end of the net cylinder (31). The outer ring of the wide end of the conical sleeve (12) is fixedly connected to the net cylinder (31) through a flange. A connecting ring (121) is provided on the inner ring of the wide end of the conical sleeve (12). A connecting hole is opened at the axis of the connecting ring (121), and a expansion sleeve (122) is configured in the connecting hole. The connecting ring (121) is fixedly sleeved on one end of the inner shaft (22) through the expansion sleeve (122). One side of the connecting ring (121) is fixedly connected to the inner wall of the conical sleeve (12) through a plurality of sheets (123). The internal space of the conical sleeve (12) forms a buffer cavity, which is formed between the feeding port (111) and the spiral conveying channel. A gap is left between the outer periphery of the connecting ring (121) and the inner wall of the conical sleeve (12) for wet coffee fruits to pass through. Correspondingly, the shape of the first end of the outer cylinder (11) is adapted to the conical sleeve (12) to accommodate the conical sleeve (12).

3. The coffee fruit drying and throwing machine according to claim 1, characterized in that, A plurality of axial positioning grooves are arranged between the outer wall of the inner shaft (22) of the drive shaft group and the inner wall of the outer shaft (21). An inner bearing (23) with guiding functions on both the inner and outer walls is arranged in each axial positioning groove to support and position the outer shaft (21).

4. The coffee fruit drying and throwing machine according to claim 1, wherein The throwing cylinder (42) includes a cylinder body. A cover plate (421) is arranged at the first end of the cylinder body close to the driving device (2). The second end of the cylinder body is open, and a plug edge (422) inserted into the second end of the outer cylinder (11) is arranged at the open end. Correspondingly, a slot (112) matching the plug edge (422) is arranged at the second end of the outer cylinder (11), and a sealing ring (113) is arranged in the slot (112).

5. The coffee fruit drying and throwing machine according to claim 4, characterized in that, A throwing cylinder rotation module is also arranged. The throwing cylinder rotation module includes a handwheel assembly (45). The handwheel assembly (45) includes a handle shaft (451) arranged on the housing (25) of the driving device (2). One end of the handle shaft (451) extends out of the housing (25) and is provided with a handle (452). The other end of the handle shaft (451) is provided with a worm (453). A worm wheel (454) is engaged with the teeth of the worm (453). The worm wheel (454) is fixed at one end of a connecting rod (455). A driving wheel (456) is fixed at the other end of the connecting rod (455). The driving wheel (456) extends into the cover plate (421). An internal gear ring (457) is fixed on the side of the cover plate (421) away from the outer cylinder (11). The internal gear ring (457) is engaged with the driving wheel (456).

6. The coffee fruit drying and throwing machine according to claim 5, characterized in that, A throwing cylinder locking module (46) is also arranged. The throwing cylinder locking module (46) includes: A locking disc (461). A rim extends from the edge of the side of the cover plate (421) away from the outer cylinder (11) towards the inside of the throwing cylinder (42). The rim is folded towards the inside of the axis to form the locking disc (461). A plurality of locking holes are arranged on the locking disc (461). A locking sleeve (462) fixed on the housing (25) of the driving device (2). A locking pin (463) slidably arranged axially in the locking sleeve (462). A locking tongue (4631) inserted into the locking hole is formed at one end of the locking pin (463). A locking spring (464). The end of the locking sleeve (462) away from the locking disc (461) is narrowed inwards to form a limiting ring (4621). A circumferentially outwardly expanding convex ring (4632) is formed on the locking pin (463). The convex ring (4632) is limited by the limiting ring (4621) to be restricted to move within the locking sleeve (462). The locking spring (464) is arranged between the limiting ring (4621) and the convex ring (4632). The elastic force of the locking spring (464) in the natural state acts on the convex ring (4632) to keep the locking tongue (4631) on the locking pin (463) in the locking hole. An unlocking lever (465), the middle section of the unlocking lever (465) is hinged to the housing (25) of the driving device (2), one end of the unlocking lever (465) is hinged to one end of the locking pin (463) away from the locking tongue (4631), and the other end of the unlocking lever (465) extends out of the housing (25) of the driving device (2) and is configured with a handle.

7. The coffee fruit drying and throwing machine according to claim 1, characterized in that, The delivery pipe (44) extends along the tangent direction of the cylinder body of the delivery cylinder (42). Both ends of the delivery pipe (44) are connection ends. The inner diameter of the middle section of the delivery pipe (44) is slightly constricted. Air supply holes (441) are provided at the transition between the middle section and the connection ends. High-speed air flow forms a negative pressure in the delivery pipe (44) and sucks in outside air through the air supply holes (441).

8. The coffee fruit drying and throwing machine according to claim 7, characterized in that, An observation port (442) is provided at the connection end of the delivery pipe (44) close to the cylinder body of the delivery cylinder (42). A transparent observation mirror is detachably assembled at the observation port (442).

9. The coffee fruit drying and throwing machine according to claim 1, characterized in that, The drive motor (26) assembly includes: A drive motor (26), a drive belt (261) is arranged on the drive shaft of the drive motor (26); A rotating shaft (262), the rotating shaft (262) is driven by the drive belt (261). A first gear (263) and a second gear (264) with different numbers of teeth are arranged on the rotating shaft (262). The first gear (263) meshes with a third gear (265). The third gear (265) meshes with a fourth gear (266) fixed on the outer shaft (21). The second gear (264) meshes with a fifth gear (267). The fourth gear (266) meshes with a sixth gear (268) fixed on the inner shaft (22). The third gear (265) and the fifth gear (267) are arranged on a rotating pin (269).

10. The coffee fruit drying and throwing machine according to claim 1, characterized in that The drying device (3) further includes a water outlet trough (32) arranged below the mesh drum (31).

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