Conveyor for industrial production of coffee beans

By introducing anti-blocking impact mechanism and automatic screening and removal mechanism into the coffee bean conveying system, the problems of pipeline elbow blockage and coffee bean grade separation in the pneumatic conveying system are solved, and the stable operation of the equipment and the improvement of production efficiency are achieved.

CN120135810AInactive Publication Date: 2025-06-13ZHEJIANG ZANGMEI FOOD TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510583267.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2025-06-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When the existing pneumatic conveying system conveys coffee beans, the pipe elbows are prone to clogging and wear, and lacks automatic screening function, resulting in different levels of coffee bean mixing, affecting product quality and production efficiency.

Method used

A conveyor for industrial production of coffee beans is designed, including an anti-blocking impact mechanism and an automatic screening and removal mechanism. The anti-blocking impact mechanism provides multi-dimensional guidance through rotation and revolution movement to avoid the accumulation and blockage of coffee beans; the automatic screening and removal mechanism uses multi-layer screening plates and V-shaped guides to automatically classify and collect according to the size and level of coffee beans.

Benefits of technology

It effectively avoids blockage at the pipe elbows, extends the service life of the equipment, improves production efficiency, and realizes accurate grading of coffee beans to meet different quality needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a conveyor for industrial production of coffee beans, and relates to the technical field of food processing.The conveyor comprises a feeding bin, coffee bean materials are stored in the feeding bin, a material distributing bin is arranged below the feeding bin, and a material guiding pipe is arranged at the end, away from the feeding bin, of the material distributing bin and is a bent pipeline; through the arrangement of the anti-blocking impact mechanism, the axis connection body rotates around the axis of the positioning disc to drive the steering piece connected with the axis connection body to move, the steering piece rotates along with the axis connection body, and the rotation and revolution combined movement mode is achieved due to the fact that the arc-shaped sliding block slides in the eccentric guide rail groove. A multi-dimensional and dynamic guiding effect can be provided for coffee beans at the elbow of the material guiding pipe for pneumatically conveying the coffee beans, and the guiding direction and force can be flexibly adjusted according to the flow speed and flow of the coffee beans and the angle of the elbow, so that the coffee beans can stably and smoothly pass through the elbow; the problem that coffee beans directly impact the inner wall of the elbow due to inertia in a traditional conveying mode is solved.
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Description

Technical Field

[0001] The present invention relates to the technical field of food processing, and specifically to a conveyor for the industrial production of coffee beans. Background Art

[0002] In the process of the industrial production of coffee beans, the pneumatic conveying system has become an important way to transport coffee beans due to its outstanding advantages such as high efficiency and cleanliness. By means of the energy of the air flow, this system pushes granular coffee beans along the direction of the air flow in a closed pipeline, enabling large-capacity, long-distance and high-speed conveying operations, and can also flexibly load materials at one place and unload them at multiple places.

[0003] However, the current pneumatic conveying system applied to the transportation of coffee beans exposes a series of problems that need to be solved urgently. Among them, the pipeline elbow is a significant weak link. Since the coffee beans move under the drive of the high-speed air flow and hit the inner wall of the pipeline at the elbow due to inertia when passing through the elbow. Such frequent impacts not only cause the wear at the pipeline elbow to intensify, greatly shorten the service life of the pipeline, and increase the equipment maintenance cost; but also some coffee beans will be broken due to the impact, seriously damaging the quality of the coffee beans. At the same time, the material is extremely easy to accumulate at the elbow. As time goes by, the accumulated amount increases continuously, and finally the pipeline is blocked, greatly affecting the normal operation and production efficiency of the pneumatic conveying system.

[0004] On the other hand, after the coffee beans are pretreated, there are still differences in their size specifications. In real life, when grading coffee beans, the mesh diameter of the sieve is calculated in fine units of 1 / 64 inch. For example, coffee beans that can stay on a sieve with a mesh diameter of 19 / 64 inch are rated as AA grade, those on an 18 / 64 inch sieve are rated as A grade, those on a 17 / 64 inch sieve are rated as B grade, and those on a 16 / 64 inch sieve are rated as C grade. Coffee beans below C grade are usually only used as feed or fertilizer. However, the existing pneumatic conveying systems generally lack the function of automatically screening coffee beans of different size specifications according to these standards during the transportation process and classifying and storing them in different receiving bins. This makes it difficult to carry out refined processing according to the size of the coffee beans in the subsequent processing links. When coffee beans of different grades are mixed together, not only the best characteristics of each grade of coffee beans cannot be fully exerted, but also the overall quality of the final coffee product is affected by the mixing of low-grade coffee beans, greatly reducing the competitiveness of the product in the market.

[0005] Therefore, a conveyor for the industrial production of coffee beans is proposed to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a conveyor for the industrial production of coffee beans to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A conveyor for the industrial production of coffee beans, comprising: a feeding bin, in which coffee bean materials are stored, a material distribution bin is arranged below the feeding bin, a guide pipe is arranged at one end of the material distribution bin away from the feeding bin, the guide pipe is a curved pipe, and one end of the guide pipe is connected with a pneumatic conveying device; an anti-blocking impact mechanism is arranged at the elbow of the end of the guide pipe away from the material distribution bin, an automatic screening and impurity removal mechanism is arranged at the end of the guide pipe away from the material distribution bin, and the automatic screening and impurity removal mechanism is arranged on one side of the anti-blocking impact mechanism; The anti-blocking impact mechanism is used to guide the coffee bean materials to avoid accumulation and blockage when the pneumatic conveying device conveys the coffee bean materials from the pretreatment to the baking link; The automatic screening and impurity removal mechanism is used to automatically sort the coffee bean materials by size grade during the conveying process of the pneumatic conveying device.

[0008] Preferably, the anti-blocking impact mechanism includes a positioning pile, the positioning pile is fixedly connected to the inner elbow of the guide pipe, a positioning disc is fixedly connected to the upper surface of the positioning pile, an eccentric ring is fixedly connected to the eccentric position of the surface of the positioning disc away from the positioning pile, a guide rail groove is formed on the upper surface of the eccentric ring, and a central body is rotatably connected to the center of the surface of the positioning disc away from the positioning pile.

[0009] Preferably, the anti-blocking impact mechanism further includes a turning piece, the turning piece is rotatably connected to the inside of the end of the central body away from the center of the positioning disc, a connecting column is rotatably connected to the end of the turning piece away from the central body, an arc-shaped slider is fixedly connected to the end of the connecting column away from the turning piece, a bearing conductor is fixedly connected to the upper part of the end of the turning piece away from the connecting column, the bearing conductor and the turning piece are rotatably connected in the turning piece through a rotating rod, and the arc-shaped slider is slidably connected in the guide rail groove.

[0010] Preferably, the automatic screening and impurity removal mechanism includes a screening bin, the screening bin is fixedly connected to the end of the guide pipe away from the material distribution bin, an A sieve plate is fixedly connected in the screening bin, a B sieve plate is arranged below the A sieve plate, a C sieve plate is arranged below the B sieve plate, V-shaped guiding bodies are fixedly connected to the upper surfaces of the A sieve plate, the B sieve plate and the C sieve plate, an A conduit is fixedly connected to the end of the V-shaped guiding body on the A sieve plate away from the A sieve plate, a B conduit is fixedly connected to the side of the V-shaped guiding body arranged on the B sieve plate away from the B sieve plate, a C conduit is fixedly connected to the side of the V-shaped guiding body on the C sieve plate away from the C sieve plate, and the ends of the A conduit, the B conduit and the C conduit away from the screening bin are respectively connected to collection bins for coffee beans of different specifications.

[0011] Preferably, a driving power source is arranged inside the positioning pile, and six extension rods are arranged around the outer circle of the central body.

[0012] Preferably, there are six groups of the turning pieces arranged around the central axis of the carrier conductor in a connected body, and the carrier conductor is an arc-shaped block provided with an inner groove.

[0013] Preferably, the A sieve plate is in a state of inclining upwards to the right. The mesh diameters of the A sieve plate, B sieve plate, and C sieve plate are all set according to the grade of 1 / 64 inch. The mesh of the A sieve plate is set to 19 / 64 inch. The B sieve plate is in a state of inclining downwards to the right, and the mesh of the B sieve plate is set to 18 / 64 inch. The C sieve plate is in a state of inclining upwards to the right, and the mesh of the C sieve plate is set to 16 / 64 inch. The A conduit, B conduit, and C conduit are all fixedly connected to and communicate with the screening bin.

[0014] Compared with the prior art, the present invention provides a conveyor for the industrial production of coffee beans, having the following beneficial effects: 1. Through the setting of the anti-blocking impact mechanism, the central axis connected body rotates around the axis of the positioning disk, driving the turning pieces connected thereto to move. The turning pieces not only rotate with the central axis connected body but also revolve due to the sliding of the arc-shaped sliders in the eccentric guide grooves. The combined movement of rotation and revolution can provide a multi-dimensional and dynamic guiding effect for coffee beans at the elbow of the material guiding pipe for pneumatic conveying of coffee beans. It can flexibly adjust the guiding direction and force according to the flow rate, flow volume of coffee beans, and the angle of the elbow, enabling the coffee beans to pass through the elbow smoothly and steadily, avoiding the problem that coffee beans directly impact the inner wall of the elbow due to inertia in the traditional conveying method.

[0015] 2. During the rotation and revolution process, the movement of structures such as the turning pieces and the carrier conductor can break the possible accumulation trend of coffee beans at the elbow of the material guiding pipe. When the coffee beans approach the elbow, the air flow disturbance and mechanical force generated by the movement of the turning pieces can timely disperse the accumulated coffee beans, enabling them to continue to be conveyed by the air flow into the carrier conductor and, under the combined action of the revolution of the carrier conductor and the rotation of the central axis connected body, continuously cycle and work to transfer the coffee bean material. This guiding method can also make the distribution of coffee beans at the elbow more uniform, reducing the possibility of local congestion, thereby effectively avoiding the blockage at the elbow of the pipeline, ensuring the continuous and stable operation of the pneumatic conveying system, and improving the production efficiency.

[0016] 3. Through the settings of sieve plates A, B, and C, sieve plates A32, B33, and C34 with specific mesh sizes and inclination states strictly follow the standard of dividing the mesh diameter in units of 1 / 64 inch in the coffee bean industry to accurately grade coffee beans. Coffee beans meeting different grades can be accurately screened out, fully meeting the diverse demands of the market for coffee beans of different qualities. The inclined settings of sieve plates A, B, and C, in cooperation with the V-shaped guide body and conduit A, etc., utilize the self-gravity of the material and the inclination angle to prompt coffee beans of different sizes to automatically and quickly roll or slide along the surface of the sieve plate and rapidly enter the corresponding conduits, and finally be efficiently collected into the external collection bin. Without complex manual operations or additional power equipment, the grading time of coffee beans is greatly shortened, the production process is accelerated, and the production efficiency is significantly improved, providing strong support for large-scale industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a partial structural diagram of the present invention; Figure 3 is the present invention Figure 2 enlarged structural diagram at position A in; Figure 4 is a structural diagram of the anti-blocking impact mechanism of the present invention; Figure 5 is a disassembled structural diagram of the anti-blocking impact mechanism of the present invention; Figure 6 is the present invention Figure 5 enlarged structural diagram at position B in; Figure 7 is a structural diagram of the automatic screening and impurity removal mechanism of the present invention.

[0018] In the figure: 1. Feeding bin; 11. Material distribution bin; 12. Guide pipe; 2. Anti-blocking impact mechanism; 21. Positioning pile; 22. Positioning disk; 23. Eccentric ring; 24. Guide rail groove; 25. Axial center connection body; 26. Steering piece; 27. Connecting column; 28. Arc-shaped slider; 29. Load-carrying conductor; 3. Automatic screening and impurity removal mechanism; 31. Screening bin; 32. Sieve plate A; 33. Sieve plate B; 34. Sieve plate C; 35. V-shaped guide body; 36. Conduit A; 37. Conduit B; 38. Conduit C. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0021] Embodiment: Please refer to Figures 1 to 6 as shown: To solve the problems mentioned in the technical solution, the embodiment of the present application provides a conveyor for the industrial production of coffee beans, including: a feeding bin 1, in which coffee bean materials are stored. A distributing bin 11 is arranged below the feeding bin 1. A guiding pipe 12 is arranged at one end of the distributing bin 11 away from the feeding bin 1. The guiding pipe 12 is a bent pipe, and one end of the guiding pipe 12 is connected to a pneumatic conveying device; an anti-blocking impact mechanism 2 is arranged at the elbow of the end of the guiding pipe 12 away from the distributing bin 11. An automatic screening and impurity removal mechanism 3 is arranged at the end of the guiding pipe 12 away from the distributing bin 11. The automatic screening and impurity removal mechanism 3 is arranged on one side of the anti-blocking impact mechanism 2; The anti-blocking impact mechanism 2 is used to guide the coffee bean materials to avoid accumulation and blockage when the pneumatic conveying device conveys the coffee bean materials from the pretreatment to the baking link. The anti-blocking impact mechanism 2 includes a positioning pile 21, which is fixedly connected to the inner elbow of the guiding pipe 12. A driving power source is built in the positioning pile 21. A positioning disk 22 is fixedly connected to the upper surface of the positioning pile 21. An eccentric ring 23 is fixedly connected to the eccentric position on the side of the positioning disk 22 away from the positioning pile 21. A guide rail groove 24 is opened on the upper surface of the eccentric ring 23. A central axis connection body 25 is rotatably connected to the center of the side of the positioning disk 22 away from the positioning pile 21. The central axis connection body 25 is mainly driven to rotate by the power source built in the positioning pile 21 and rotates under the power of pneumatic conveying. Six extension rods are arranged around the outer circle of the central axis connection body 25; The anti-blocking impact mechanism 2 also includes a steering plate 26, which is rotatably connected to the inside of one end of the axis joint body 25 away from the center of the positioning plate 22, and the end of the steering plate 26 away from the axis joint body 25 is rotatably connected to a connecting column 27, and the end of the connecting column 27 away from the steering plate 26 is fixedly connected to an arc-shaped slider 28, and the upper part of the end of the steering plate 26 away from the connecting column 27 is fixedly connected to a load-bearing conductor 29, which is mainly used to push the coffee beans to be loaded into the load-bearing conductor 29 by pneumatic power when pneumatically conveying coffee beans, and rotate under the power drive built into the positioning pile 21 to drive the coffee bean material in the load-bearing conductor 29 to transfer at the elbow, and the load-bearing conductor 29 and the steering plate 26 are rotatably connected in the steering plate 26 through a rotating rod, and six groups of steering plates 26 to load-bearing conductors 29 are arranged around the center of the axis joint body 25, and the arc-shaped slider 28 is slidably connected in the guide groove 24, and the load-bearing conductor 29 is an arc-shaped block with an inner groove; For further examples, please refer to Figure 7 As shown: The automatic screening and impurity removal mechanism 3 is used for automatically sorting the coffee bean materials by size during the pneumatic conveying equipment conveys the coffee bean materials. The automatic screening and impurity removal mechanism 3 includes a screening bin 31, which is fixedly connected to the end of the guide pipe 12 away from the material distribution bin 11. A sieve plate 32 is fixedly connected in the screening bin 31. The A sieve plate 32 is inclined to the upper right. A B sieve plate 33 is arranged below the A sieve plate 32. The mesh diameters of the A sieve plates 32, the B sieve plates 33 and the C sieve plates 34 are all set according to the grade of 1 / 64 inch. The mesh of the A sieve plate 32 is set to 19 / 64 inch. The B sieve plate 33 is mainly used for filtering and collecting AA grade coffee bean materials. The B sieve plate 33 is inclined to the lower right. A C sieve plate 34 is arranged below the B sieve plate 33. The mesh of the B sieve plate 33 is set to 18 / 64 inch. The C sieve plate 34 is mainly used for filtering and collecting A grade coffee bean materials. In the upper right tilted state, the upper surfaces of the A sieve plates 32, the B sieve plates 33 and the C sieve plates 34 are fixedly connected with V-shaped guide bodies 35, the mesh of the C sieve plate 34 is set to 16 / 64 inches, and the C sieve plate 34 is mainly used to filter and collect B-grade coffee beans. The end of the V-shaped guide body 35 on the A sieve plate 32 away from the A sieve plate 32 is fixedly connected with an A conduit 36, the side of the V-shaped guide body 35 set on the B sieve plate 33 away from the B sieve plate 33 is fixedly connected with a B conduit 37, the side of the V-shaped guide body 35 on the C sieve plate 34 away from the C sieve plate 34 is fixedly connected with a C conduit 38, the ends of the A conduits 36, the B conduits 37 and the C conduits 38 away from the screening bin 31 are respectively connected with collection bins for coffee beans of different specifications, the A conduits 36, the B conduits 37 and the C conduits 38 are fixedly connected and communicated with the screening bin 31, and the bottom of the screening bin 31 is mainly used to collect defective beans below grade C.

[0022] Everything in the above example works like this: The following is the working process of the anti-blocking impact mechanism 2 for guiding coffee bean materials to avoid accumulation and blockage during the transportation of coffee bean materials from pretreatment to baking in a pneumatic conveying device: During use, the pneumatic conveyor connected to the material guiding pipe 12 starts, and the pre-treated coffee bean materials placed in the feeding bin 1 fall into the distributing bin 11 and are transported in batches into the material guiding pipe 12 for transmission. Under the rotational transportation of the distributing bin 11, the coffee bean materials stably enter the material guiding pipe 12. Then, under the start of the pneumatic conveyor, the airflow entrains the coffee bean materials, causing them to change from a static state to a state of moving with the airflow, and then carrying the coffee beans to flow along the pipeline of the material guiding pipe 12. When the coffee bean materials are transported to the elbow of the material guiding pipe 12, the built-in power supply of the positioning pile 21 starts. The output end of the built-in power supply of the positioning pile 21 is fixedly connected to the axis-connected body 25. Then, driven by the power supply, the axis-connected body 25 rotates forward. When the axis-connected body 25 rotates around the axis of the positioning disk 22, as the active rotating component, the rotation of the axis-connected body 25 will drive the six extension rods fixedly connected to the outer ring to make a circular motion centered on the axis of the positioning disk 22. Since one end of the axis-connected body 25 far from the axis of the positioning disk 22 is rotatably connected with a turning piece 26, when the axis-connected body 25 drives the extension rods to rotate and make a circular motion, the rotation of the extension rods will cause the turning piece 26 to move synchronously. Driven by the extension rods on the axis-connected body 25, the turning piece 26 makes a circular motion around the axis of the positioning disk 22 on the one hand. On the other hand, since the turning piece 26 is slidably connected to the guide rail groove 24 opened in the eccentric ring 23 through the arc-shaped slider 28 at the bottom of the connecting column 27, and the eccentric ring 23 is located at the eccentric position of the positioning disk 22, the turning piece 26 will make a circular motion along the guide rail groove 24 opened on the eccentric ring 23. During this movement process, the turning piece 26 will continuously adjust its own angle and posture according to the shape and position of the eccentric ring 23 on the basis of making a circular motion around the axis of the positioning disk 22; at the same time, the movement of the turning piece 26 is transmitted to the arc-shaped slider 28 through the connecting column 27, so that the arc-shaped slider 28 slides smoothly in the guide rail groove 24, ensuring that the turning piece 26 can move smoothly along the eccentric ring 23. The load-carrying conductor 29 fixedly connected above the end of the turning piece 26 far from the connecting column 27 will move together with the movement of the turning piece 26, including both the circular motion component around the axis of the positioning disk 22 and the circular motion component along the eccentric ring 23, and will also be adjusted due to the angle change of the turning piece 26. Further, under the setting, the turning piece 26 rotates forward around the connection point of the load-carrying conductor 29. When it rotates to the conveying end of the coffee bean materials, under pneumatic transportation, the coffee bean materials are loaded into the load-carrying conductor 29. Then, during the continuous forward rotation of the axis-connected body 25, the coffee bean materials placed in the load-carrying conductor 29 are transported to the other side of the elbow. Then, under the action of centrifugal force and the power of pneumatic transportation, the coffee bean materials carried in the load-carrying conductor 29 are thrown out, and the transfer work of the coffee bean materials is completed at the elbow; Through the setting of the anti-blocking impact mechanism 2, the axis-connected body 25 rotates around the axis of the positioning disk 22, driving the movement of the turning vane 26 connected thereto. The turning vane 26 not only rotates around its own axis with the axis-connected body 25, but also performs a revolution due to the sliding of the arc-shaped slider 28 in the eccentric guide groove 24. The combined movement of rotation and revolution can provide a multi-dimensional and dynamic guiding effect for coffee beans at the elbow of the material guiding pipe 12 for pneumatic conveying of coffee beans. It can flexibly adjust the guiding direction and force according to the flow rate and flow volume of coffee beans and the angle of the elbow, enabling the coffee beans to pass through the elbow smoothly and steadily, avoiding the problem that coffee beans directly impact the inner wall of the elbow due to inertia in the traditional conveying method.

[0023] Furthermore, during the rotation and revolution, the movement of structures such as the turning vane 26 and the load-carrying conductor 29 can break the possible accumulation trend of coffee beans at the elbow of the material guiding pipe 12. When the coffee beans approach the elbow, the air flow disturbance and mechanical force generated by the movement of the turning vane 26 can timely disperse the accumulated coffee beans, enabling them to continue to be transported by the air flow into the load-carrying conductor 29. Under the combined action of the revolution of the load-carrying conductor 29 and the rotation of the axis-connected body 25, it continuously circulates and works to transfer the coffee bean material. This guiding method can also make the distribution of coffee beans at the elbow more uniform, reducing the possibility of local congestion, thus effectively avoiding blockage at the pipe elbow and ensuring the continuous and stable operation of the pneumatic conveying system and improving production efficiency.

[0024] Please refer to the above working process Figures 1 to 6 。

[0025] The following is the working process of the automatic screening and impurity removal mechanism 3 for automatically sorting coffee bean materials by size during the pneumatic conveying of coffee bean materials: During use, after the coffee bean material is transferred from the elbow position and during continuous transportation, the material flows out from the other end of the material guiding pipe 12 and is conveyed into the screening bin 31. The coffee bean material falls from above the A sieve plate 32 and first contacts the A sieve plate 32. Since the A sieve plate 32 is in an upward inclined state and its mesh size is set to 19 / 64 inches, when the coffee beans fall on the A sieve plate 32, the larger coffee beans that cannot pass through the 19 / 64-inch mesh, which may meet the AA grade standard, will roll or slide upward along the surface of the A sieve plate 32 due to their own gravity and the inclined angle of the A sieve plate 32. During this process, the V-shaped guiding body 35 provided on the A sieve plate 32 plays a role. Its closing direction is connected to the A conduit 36, guiding these larger coffee beans into the A conduit 36 and finally collecting them into the connected external collection bin through the A conduit 36. The smaller coffee beans that can pass through the 19 / 64-inch mesh will pass through the A sieve plate 32 and continue to fall to the lower B sieve plate 33; Since the B sieve plate 33 is set in a downward-sloping state with a mesh size of 18 / 64 inches, after the coffee beans falling from the A sieve plate 32 reach the B sieve plate 33, those coffee beans larger than 18 / 64 inches may meet the A-grade standard. Under the action of gravity and the inclination of the B sieve plate 33, they will roll or slide downward along the B sieve plate 33. Similarly, the V-shaped guiding body 35 on the B sieve plate 33 will guide these beans into the B conduit 37 connected thereto, and then be conveyed into the externally connected collection bin; while the coffee beans smaller than 18 / 64 inches will pass through the mesh of the B sieve plate 33 and fall onto the lower C sieve plate 34; Since the C sieve plate 34 is also in an upward-sloping state with a mesh diameter mainly of 16 / 64 inches, among the coffee beans falling onto the C sieve plate 34, the coffee beans with a size larger than 16 / 64 inches but smaller than 18 / 64 inches will roll or slide along the upward-sloping surface of the C sieve plate 34 and enter the C conduit 38 under the guidance of the V-shaped guiding body 35, and finally be conveyed to the corresponding collection area. Such coffee beans can be classified as B-grade, while the coffee beans smaller than 16 / 64 inches will pass through the mesh of the C sieve plate 34 and fall into the bottom cavity of the screening bin 31, and they can be collected as C-grade or below C-grade coffee beans for use in feed or fertilizer.

[0026] Through the settings of the A sieve plate 32, B sieve plate 33, and C sieve plate 34, the A sieve plate 32 with a specific mesh size and inclination state has a mesh of 19 / 64 inches and is upward-sloping, the B sieve plate 33 has a mesh of 18 / 64 inches and is downward-sloping, and the C sieve plate 34 has a mesh of 16 / 64 inches and is upward-sloping. Strictly in accordance with the standard of the coffee bean industry for dividing the mesh diameter in units of 1 / 64 inches, precise grading of coffee beans is implemented. Coffee beans meeting different grades can be accurately screened out, fully meeting the diverse needs of the market for coffee beans of different qualities. The inclined settings of the A sieve plate 32, B sieve plate 33, and C sieve plate 34, in cooperation with the V-shaped guiding body 35 and the A conduit 36, etc., by means of the self-gravity of the material and the inclination angle, prompt coffee beans of different sizes to automatically and quickly roll or slide along the surface of the sieve plate, quickly enter the corresponding conduits, and finally be efficiently collected into the external collection bin without complex manual operations or additional power equipment, greatly shortening the grading time of coffee beans, accelerating the production process, and significantly improving production efficiency, providing strong support for large-scale industrial production.

[0027] Please refer to the above working process Figure 7 。

[0028] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveyor for industrial production of coffee beans, comprising: A feeding bin (1), wherein coffee bean material is stored in the feeding bin (1), a distribution bin (11) is arranged below the feeding bin (1), a material guide pipe (12) is arranged at one end of the distribution bin (1) away from the feeding bin (1), the material guide pipe (12) is a curved pipe, and one end of the material guide pipe (12) is connected to a pneumatic conveying device; characterized in that an anti-blocking impact mechanism (2) is arranged at the elbow of one end of the material guide pipe (12) away from the distribution bin (11), an automatic screening and impurity removal mechanism (3) is arranged at one end of the material guide pipe (12) away from the distribution bin (11), and the automatic screening and impurity removal mechanism (3) is arranged on one side of the anti-blocking impact mechanism (2); The anti-blocking impact mechanism (2) is used to guide the coffee bean material to avoid accumulation and blockage when the pneumatic conveying equipment is conveying the coffee bean material from the pre-treatment to the roasting stage; The automatic screening and impurity removal mechanism (3) is used to automatically sort the coffee bean materials into different sizes during the process of the pneumatic conveying equipment conveying the coffee bean materials.

2. The conveyor for industrial production of coffee beans according to claim 1, characterized in that: The anti-blocking impact mechanism (2) comprises a positioning pile (21), the positioning pile (21) is fixedly connected to the inner elbow of the material guide pipe (12), a positioning plate (22) is fixedly connected to the upper surface of the positioning pile (21), an eccentric ring (23) is fixedly connected to the eccentric part of a side of the positioning plate (22) away from the positioning pile (21), a guide rail groove (24) is provided on the upper surface of the eccentric ring (23), and a shaft connecting body (25) is rotatably connected to the center of a side of the positioning plate (22) away from the positioning pile (21).

3. The conveyor for industrial production of coffee beans according to claim 2, characterized in that: The anti-blocking impact mechanism (2) also includes a steering plate (26), the steering plate (26) being rotatably connected to the inside of one end of the axis joint body (25) away from the center of the positioning plate (22), the end of the steering plate (26) away from the axis joint body (25) being rotatably connected to a connecting column (27), the end of the connecting column (27) away from the steering plate (26) being fixedly connected to an arc-shaped slider (28), the upper part of the end of the steering plate (26) away from the connecting column (27) being fixedly connected to a load-bearing conductor (29), the load-bearing conductor (29) and the steering plate (26) being rotatably connected to the steering plate (26) via a rotating rod, and the arc-shaped slider (28) being slidably connected to the guide rail groove (24).

4. The conveyor for industrial production of coffee beans according to claim 1, characterized in that: The automatic screening and impurity removal mechanism (3) comprises a screening bin (31), the screening bin (31) being fixedly connected to one end of the material guide pipe (12) away from the material distribution bin (11), an A sieve plate (32) being fixedly connected in the screening bin (31), a B sieve plate (33) being arranged below the A sieve plate (32), a C sieve plate (34) being arranged below the B sieve plate (33), and a V-shaped guide body (35) being fixedly connected to the upper surfaces of the A sieve plate (32), the B sieve plate (33) and the C sieve plate (34), and the upper surfaces of the A sieve plate (32) and the B sieve plate (33) and the C sieve plate (34) are all fixedly connected to the V-shaped guide body (35). An end of the V-shaped guide body (35) away from the A sieve plate (32) is fixedly connected to an A conduit (36); a side of the V-shaped guide body (35) provided on the B sieve plate (33) away from the B sieve plate (33) is fixedly connected to a B conduit (37); a side of the V-shaped guide body (35) on the C sieve plate (34) away from the C sieve plate (34) is fixedly connected to a C conduit (38); and ends of the A conduit (36), the B conduit (37) and the C conduit (38) away from the screening bin (31) are respectively connected to collection bins for coffee beans of different specifications.

5. The conveyor for industrial production of coffee beans according to claim 2, characterized in that: The positioning pile (21) has a built-in driving power source, and six extension rods are arranged around the outer ring of the axial joint (25).

6. The conveyor for industrial production of coffee beans according to claim 3, characterized in that: Six groups of the deflection plates (26) to the load-bearing conductors (29) are arranged around the center of the axial joint (25), and the load-bearing conductors (29) are arc-shaped blocks with inner grooves.

7. The conveyor for industrial production of coffee beans according to claim 4, characterized in that: The A sieve plate (32) is tilted toward the upper right, and the mesh diameters of the A sieve plate (32), the B sieve plate (33), and the C sieve plate (34) are all set at a level of 1 / 64 inch, and the mesh of the A sieve plate (32) is set to 19 / 64 inch. The B sieve plate (33) is tilted toward the lower right, and the mesh of the B sieve plate (33) is set to 18 / 64 inch. The C sieve plate (34) is tilted toward the upper right, and the mesh of the C sieve plate (34) is set to 16 / 64 inch. The A duct (36), the B duct (37), and the C duct (38) are all fixedly connected to and communicated with the screening bin (31).