Coffee roasting bean blender
The stirring mechanism with multi-dimensional mechanical motion solves the problem of uneven mixing in existing coffee bean roasting mixers, achieving efficient and uniform coffee bean mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI JIAYAN FOOD CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-19
AI Technical Summary
Existing coffee roasting bean mixers often result in uneven mixing due to differences in particle size and density during the mixing process, making it difficult to quickly achieve the desired mixing effect, especially when mixing complex flavor coffee beans that require deep blending.
The stirring mechanism employs multi-dimensional mechanical motion, including components such as motor-driven stirring blades, support rings, gear rings, lead screws, and gears. Through complex mechanical transmission, it achieves multi-dimensional rotation and vertical movement of the stirring blocks, thereby enhancing the stirring effect.
It improves the mixing efficiency of roasted coffee beans, ensures uniform mixing and stirring effect, and meets the need for efficient mixing in a short time.
Smart Images

Figure CN224369015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee roasting bean processing technology, specifically a coffee roasting bean mixing machine. Background Technology
[0002] A coffee roasting bean mixing machine is a specialized piece of machinery used to uniformly mix coffee beans of different varieties, roast levels, or flavors. Its core function is to achieve thorough blending of coffee beans through mechanical stirring. The main body typically consists of a cylindrical container or a conical mixing chamber, equipped with a paddle-type, ribbon-type, or planetary stirring mechanism. Driven by a motor (or purely mechanical transmission when electronic control is not involved), the stirring components push and tumble the coffee beans, causing different batches to circulate within the chamber, breaking up material stratification and eliminating uneven mixing caused by density differences. Some machines are also equipped with adjustable inlets, outlet valves, and observation windows for easy control of the mixing ratio and observation of the mixing state. Suitable for blending processes in coffee roasting workshops and small to medium-sized coffee enterprises, it ensures balanced flavor and stable quality of the finished coffee beans, meeting standardized production requirements.
[0003] Existing coffee bean roasting and mixing machines often employ fixed-height paddles or a single rotating mixing structure during the mixing process. This makes it difficult to address the stratification issues caused by differences in particle size and density between different batches of coffee beans, easily leading to mixing dead zones or low mixing efficiency. Traditional mechanical transmission methods result in a single movement trajectory of the mixing components, failing to achieve three-dimensional tumbling and dynamic shearing of the materials, leading to insufficient mixing uniformity. This is especially problematic for complex flavor coffee beans requiring deep blending, making it difficult to achieve ideal mixing results in a short time. Therefore, there is an urgent need for a mixing device that improves mixing efficiency and uniformity through multi-dimensional mechanical motion. Utility Model Content
[0004] The purpose of this invention is to provide a coffee roasting bean mixing machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coffee roasting bean mixing machine, including a material bin, a stirring mechanism fixedly connected to the top of the material bin, and a sealing mechanism fixedly connected to the bottom of the material bin;
[0006] The stirring mechanism includes a support plate, which is fixedly connected to the top of the material box. A motor rod is fixedly connected to the top of the support plate. A stirring blade is fixedly connected to the surface of the motor rod. A support ring is fixedly connected to the surface of the motor rod. A gear ring is fixedly connected to the top of the support ring. A lead screw is rotatably connected to the four ends of the support ring. A gear is fixedly connected to the top of the lead screw. A gear ring is meshed with the surface of the gear. A rotating ring is threaded onto the surface of the lead screw. A stirring block is rotatably connected to the upper and lower ends of the rotating ring.
[0007] Preferably, a through hole is formed inside the support plate, and a through hole is formed on the surface of the motor rod through the support plate to facilitate the movement of the motor rod within the through hole.
[0008] Preferably, a threaded hole is formed inside the swivel, and the surface of the lead screw is threadedly connected to the inside of the threaded hole.
[0009] Preferably, a support hole is formed inside the support ring, and the upper surface of the lead screw is rotatably connected to the support hole, so as to facilitate the rotation of the lead screw within the support hole.
[0010] Preferably, the sealing mechanism includes a T-shaped circular block, which is fixedly connected to the bottom of the material box. A bottom ring is provided at the bottom of the T-shaped circular block, and a plug is fixedly connected inside the bottom ring. Bolts are threadedly connected to the four ends of the bottom ring.
[0011] Preferably, the T-shaped block has openings inside and at the bottom of the hopper, and the surface of the plug is inserted into the opening.
[0012] Preferably, the bottom of the T-shaped block has a threaded hole, and the surface of the bolt is threaded to the inside of the threaded hole, which facilitates fixing the plug to the T-shaped block.
[0013] Compared with the prior art, this utility model provides a coffee roasting bean mixing machine, which has the following beneficial effects:
[0014] 1. This coffee roasting bean mixing machine, through its set mixing mechanism, drives the support ring and gear ring to rotate when the motor rod rotates, thereby driving the lead screw to rotate on its own and around the motor rod, and driving the mixing blocks to move up and down, thus speeding up the mixing operation of coffee roasting beans and improving the corresponding mixing efficiency.
[0015] 2. This coffee roasting bean mixing machine, through the set sealing mechanism, rotates the bolt to drive it out of the limit inside the T-shaped round block, thereby driving the stopper to leave the limit inside the T-shaped round block, so that the stopper can be removed and the mixed raw materials can be discharged. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a perspective view of the overall structure of this utility model;
[0018] Figure 2 This is a three-dimensional exploded view of the stirring mechanism of this utility model;
[0019] Figure 3 This is a three-dimensional exploded view of the stirring mechanism parts of this utility model;
[0020] Figure 4 This is a three-dimensional exploded view of the sealing mechanism of this utility model.
[0021] In the diagram: 1. Feed hopper; 2. Mixing mechanism; 21. Support plate; 22. Motor pole; 23. Gear ring; 24. Support ring; 25. Gear; 26. Lead screw; 27. Rotary ring; 28. Mixing block; 29. Mixing blade; 3. Sealing mechanism; 31. T-shaped block; 32. Bottom ring; 33. Bolt; 34. Plug. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] This utility model provides the following technical solution:
[0025] Example 1
[0026] Combination Figures 2 to 4 A coffee roasting bean mixing machine includes a material bin 1, a mixing mechanism 2 fixedly connected to the top of the material bin 1, and a sealing mechanism 3 fixedly connected to the bottom of the material bin 1.
[0027] The mixing mechanism 2 includes a support plate 21, which is fixedly connected to the top of the material box 1. A motor rod 22 is fixedly connected to the top of the support plate 21. A mixing blade 29 is fixedly connected to the surface of the motor rod 22. A support ring 24 is fixedly connected to the surface of the motor rod 22. A gear ring 23 is fixedly connected to the top of the support ring 24. A lead screw 26 is rotatably connected to the four ends of the support ring 24. A gear 25 is fixedly connected to the top of the lead screw 26. The gear ring 23 is meshed with the surface of the gear 25. A rotating ring 27 is threadedly connected to the surface of the lead screw 26. Mixing blocks 28 are rotatably connected to the upper and lower ends of the rotating ring 27. A through hole is opened inside the support plate 21. The motor rod 22 passes through the through hole inside the support plate 21. A threaded hole is opened inside the rotating ring 27. The surface of the lead screw 26 is threadedly connected to the inside of the threaded hole.
[0028] Furthermore, a support hole is provided inside the support ring 24, and the upper surface of the lead screw 26 is rotatably connected to the support hole. When the gear 25 rotates, it drives the lead screw 26 to rotate on its own and around the motor rod 22, and drives the mixing block 28 to move up and down, thereby speeding up the mixing operation of coffee roasted beans and improving the corresponding mixing efficiency.
[0029] Example 2
[0030] See Figure 1-4 Furthermore, based on Embodiment 1, the sealing mechanism 3 further includes a T-shaped circular block 31, which is fixedly connected to the bottom of the material box 1. A bottom ring 32 is provided at the bottom of the T-shaped circular block 31, and a plug 34 is fixedly connected inside the bottom ring 32. Bolts 33 are threadedly connected to the four ends of the bottom ring 32. Openings are opened inside the T-shaped circular block 31 and at the bottom of the material box 1, and the surface of the plug 34 is inserted into the opening.
[0031] Furthermore, a threaded hole is opened at the bottom of the T-shaped round block 31, and the surface of the bolt 33 is threadedly connected to the inside of the threaded hole. The plug 34 is disengaged from the limit inside the T-shaped round block 31, so that the plug 34 can be removed and the mixed raw material can be discharged.
[0032] In actual operation, when this device is used to mix coffee roasted beans, the raw materials are put into the material box 1, and the motor rod 22 drives the stirring blade 29 to rotate and mix the raw materials. In addition, in order to enhance the mixing effect, when the motor rod 22 rotates, it drives the support ring 24 and the gear ring 23 to rotate, which in turn drives the gear 25 to rotate, which in turn drives the lead screw 26 to rotate itself and rotate around the motor rod 22, and drives the mixing block 28 to move up and down, thereby speeding up the mixing operation of coffee roasted beans and improving the corresponding mixing efficiency.
[0033] Furthermore, when the mixing is complete and the material needs to be discharged, the bolt 33 is rotated to disengage it from the limit inside the T-shaped block 31, thereby disengaging the stopper 34 from the limit inside the T-shaped block 31. This allows the stopper 34 to be removed and the mixed material to be discharged.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A coffee roasting bean mixing machine, comprising a feed hopper (1), characterized in that: The top of the material box (1) is fixedly connected to a stirring mechanism (2), and the bottom of the material box (1) is fixedly connected to a sealing mechanism (3). The stirring mechanism (2) includes a support plate (21), which is fixedly connected to the top of the material box (1). A motor rod (22) is fixedly connected to the top of the support plate (21). A stirring blade (29) is fixedly connected to the surface of the motor rod (22). A support ring (24) is fixedly connected to the surface of the motor rod (22). A gear ring (23) is fixedly connected to the top of the support ring (24). A lead screw (26) is rotatably connected to the four ends of the support ring (24). A gear (25) is fixedly connected to the top of the lead screw (26). A gear ring (23) is meshed with the surface of the gear (25). A rotating ring (27) is threadedly connected to the surface of the lead screw (26). A stirring block (28) is rotatably connected to the upper and lower ends of the rotating ring (27).
2. The coffee roasting bean mixing machine according to claim 1, characterized in that: The support plate (21) has a through hole inside, and the motor rod (22) has a through hole inside the support plate (21) through its surface.
3. The coffee roasting bean mixing machine according to claim 1, characterized in that: The rotating ring (27) has a threaded hole inside, and the surface of the lead screw (26) is threadedly connected to the inside of the threaded hole.
4. A coffee roasting bean mixing machine according to claim 1, characterized in that: The support ring (24) has a support hole inside, and the upper surface of the lead screw (26) is rotatably connected to the support hole.
5. A coffee roasting bean mixing machine according to claim 1, characterized in that: The sealing mechanism (3) includes a T-shaped round block (31), which is fixedly connected to the bottom of the material box (1). A bottom ring (32) is provided at the bottom of the T-shaped round block (31), and a plug (34) is fixedly connected inside the bottom ring (32). Bolts (33) are threadedly connected to the four ends of the bottom ring (32).
6. A coffee roasting bean mixing machine according to claim 5, characterized in that: The T-shaped block (31) and the bottom of the hopper (1) both have openings, and the surface of the plug (34) is inserted into the opening.
7. A coffee roasting bean mixing machine according to claim 5, characterized in that: The bottom of the T-shaped block (31) has a threaded hole, and the surface of the bolt (33) is threadedly connected to the inside of the threaded hole.