Coffee bean grinding device for coffee baking processing
By designing a dual grinding mechanism and an adjustable secondary grinding mechanism, the problem of low efficiency in traditional coffee bean grinding devices has been solved, enabling a fast and efficient coffee bean grinding process and improving the overall efficiency and flexibility of the coffee bean grinding device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YIKA FOOD TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional coffee bean grinding devices use a single grinding roller for one-time grinding, which results in a long grinding time for large coffee beans and affects overall efficiency.
The design incorporates a primary grinding unit and a secondary grinding unit to perform initial and secondary grinding of coffee beans, respectively. This dual grinding process improves efficiency, and the adjustable secondary grinding unit allows for flexible adjustment of the grinding space to meet different needs.
It enables the rapid grinding of large coffee beans into medium-sized coffee beans, and then the rapid grinding of medium-sized coffee beans into fine coffee powder, improving overall grinding efficiency and enhancing the flexibility of the device.
Smart Images
Figure CN224252887U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coffee roasting and processing technology, specifically to a coffee bean grinding device for coffee roasting and processing. Background Technology
[0002] Grinding coffee beans is one of the key steps in coffee making. The main purpose of grinding coffee beans is to increase the surface area of the beans so that aroma and flavor components can be released more effectively during the brewing process.
[0003] Traditional coffee bean grinding devices mostly use a single grinding roller for one-time grinding when grinding coffee beans. This takes a long time to grind large coffee beans, affecting the overall grinding efficiency. To address this issue, we propose a coffee bean grinding device for coffee roasting and processing. Utility Model Content
[0004] The purpose of this invention is to provide a coffee bean grinding device for coffee roasting and processing, so as 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 bean grinding device for coffee roasting and processing, comprising a grinding outer cylinder, a sealing cap threadedly installed at the top of the grinding outer cylinder, a feed inlet fixedly fastened at the top of the grinding outer cylinder, a grinding mechanism provided in the middle of the inner side of the grinding outer cylinder, a second grinding mechanism provided at the bottom of the inner side of the grinding outer cylinder, and a material storage frame provided at the bottom of the grinding outer cylinder.
[0006] The grinding mechanism includes a first grinding outer frame, which is fixedly snapped into the middle of the inner side of the grinding outer cylinder. A first grinding inner roller is provided in the first grinding outer frame. A first material distribution table is fixedly installed at the top of the first grinding inner roller. A first grinding shaft is movably inserted in the middle of the first grinding inner roller and the first material distribution table. The top of the first grinding shaft is rotatably installed in the middle of the cover.
[0007] The second grinding mechanism includes a second grinding outer frame, which is fixedly snapped into the bottom inner side of the grinding outer cylinder. A second grinding inner roller is provided in the second grinding outer frame. A second material distribution platform is fixedly installed at the top of the second grinding inner roller. A second grinding shaft is movably inserted in the middle of the second grinding inner roller and the second material distribution platform. The second grinding shaft movably passes through the first grinding shaft.
[0008] Preferably, a limiting strip is integrally formed on the outer side of the second grinding shaft, and a lifting groove is provided in the middle of the first grinding shaft, wherein the limiting strip is slidably engaged in the lifting groove.
[0009] Preferably, a bearing is fixedly mounted at the top center of the second grinding shaft, a protective cover is threaded onto the top of the cover, an electric telescopic rod is fixedly mounted in the protective cover, and the drive end of the electric telescopic rod is fixedly engaged with the middle of the bearing.
[0010] Preferably, a gear ring is fixedly installed on the top of the first grinding shaft, a drive motor is fixedly installed in the protective cover, and a gear is fixedly installed on the drive end of the drive motor, the gear and the gear ring being meshed together.
[0011] Preferably, a first fixing nut is provided at the bottom end of the first grinding inner roller and the top end of the first material distribution table, and the first fixing nut is threadedly installed on the outside of the first grinding shaft.
[0012] Preferably, a second fixing nut is provided at the bottom end of the second grinding inner roller and the top end of the second material distribution table, and the second fixing nut is threadedly installed on the outside of the second grinding shaft.
[0013] Preferably, a threaded pipe is fixedly installed at the top of the storage frame, and the threaded pipe is threadedly installed at the bottom of the grinding outer cylinder.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. By setting up a primary grinding mechanism and a secondary grinding mechanism, coffee can be initially ground to produce medium-sized coffee particles, and then the medium-sized coffee particles can be ground a second time to produce fine coffee particles. Compared with the traditional single grinding of coffee, grinding in two stages can reduce the grinding time and improve the overall grinding efficiency.
[0016] 2. By setting up a secondary grinding mechanism, the second grinding shaft can be flexibly controlled to slide vertically within the first grinding shaft, and the space between the bottom of the second inner grinding roller and the bottom of the inner side of the second outer grinding frame can be adjusted. This allows for flexible adjustments based on grinding requirements, improving the overall performance of the coffee bean grinding device. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the structural connection after the present invention is disassembled.
[0020] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.
[0021] Figure 4 This is a schematic diagram of the structure of the research and development unit in this utility model.
[0022] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle.
[0023] Figure 6 This is a schematic diagram of the structure of the second research institution in this utility model.
[0024] Figure 7 This utility model Figure 6 A magnified view of point C in the middle.
[0025] In the diagram: 1. Grinding outer cylinder; 11. Cover; 12. Protective cover; 2. Feed inlet; 3. First grinding mechanism; 4. Second grinding mechanism; 5. Storage frame; 51. Threaded pipe; 6. Gear ring; 61. Drive motor; 62. Gear; 63. Electric telescopic rod; 31. First grinding outer frame; 32. First grinding inner roller; 33. First material distribution platform; 34. First grinding shaft; 35. First fixing nut; 301. Lifting slide; 41. Second grinding outer frame; 42. Second grinding inner roller; 43. Second material distribution platform; 44. Second grinding shaft; 441. Limiting strip; 45. Second fixing nut; 46. Bearing. Detailed Implementation
[0026] 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.
[0027] Example: Figure 1-7 As shown, this utility model provides a coffee bean grinding device for coffee roasting and processing, including a grinding outer cylinder 1. A cap 11 is threadedly installed on the top of the grinding outer cylinder 1 for easy removal of the cap 11. A feed inlet 2 is fixedly clipped on the top of the grinding outer cylinder 1, through which coffee to be ground is introduced into the grinding outer cylinder 1. A grinding mechanism 3 is provided in the middle of the inner side of the grinding outer cylinder 1, and a second grinding mechanism 4 is provided at the bottom of the inner side of the grinding outer cylinder 1. A storage frame 5 is provided at the bottom of the grinding outer cylinder 1. A threaded pipe 51 is fixedly installed on the top of the storage frame 5, and the threaded pipe 51 is threadedly installed at the bottom of the grinding outer cylinder 1.
[0028] The grinding mechanism 3 includes a first grinding outer frame 31, which is fixedly snapped into the middle of the inner side of the grinding outer cylinder 1. A first grinding inner roller 32 is provided in the first grinding outer frame 31. A first material distribution table 33 is fixedly installed at the top of the first grinding inner roller 32. A first grinding shaft 34 is movably inserted in the middle of the first grinding inner roller 32 and the first material distribution table 33. The top of the first grinding shaft 34 is rotatably installed in the middle of the cover 11. A gear ring 6 is fixedly installed at the top of the first grinding shaft 34. A drive motor 61 is fixedly installed in the protective cover 12. A gear 62 is fixedly installed at the drive end of the drive motor 61. The gear 62 and the gear ring 6 are meshed and connected. By controlling the start of the drive motor 61, the gear 62 is driven to rotate, thereby driving the first grinding shaft 34 and the first grinding inner roller 32 to rotate. The coffee placed between the outer side of the first grinding inner roller 32 and the inner side of the first grinding outer frame 31 is initially ground to grind large coffee particles into medium-sized coffee particles.
[0029] The secondary grinding mechanism 4 includes a second grinding outer frame 41, which is fixedly snapped into the bottom inner side of the grinding outer cylinder 1. A second grinding inner roller 42 is provided in the second grinding outer frame 41. A second material distribution table 43 is fixedly installed at the top of the second grinding inner roller 42. A second grinding shaft 44 is movably inserted in the middle of the second grinding inner roller 42 and the second material distribution table 43. The second grinding shaft 44 movably passes through the first grinding shaft 34. Medium-sized coffee particles fall between the outer side of the second grinding inner roller 42 and the inner side of the second grinding outer frame 41. The rotation of the second grinding shaft 44 is controlled to drive the rotation of the second grinding inner roller 42, thereby performing secondary grinding on the medium-sized coffee particles and quickly grinding them into fine coffee particles.
[0030] The outer side of the second grinding shaft 44 is integrally formed with a limiting strip 441, and the middle part of the first grinding shaft 34 is provided with a lifting groove 301. The limiting strip 441 is slidably engaged in the lifting groove 301, so that the second grinding shaft 44 can slide vertically in the first grinding shaft 34, and the second grinding shaft 44 can be controlled to rotate synchronously when the first grinding shaft 34 rotates.
[0031] A bearing 46 is fixedly mounted at the top center of the second grinding shaft 44. A protective cover 12 is threaded onto the top of the cover 11. An electric telescopic rod 63 is fixedly mounted in the protective cover 12. The drive end of the electric telescopic rod 63 is fixedly mounted in the middle of the bearing 46. By controlling the opening of the electric telescopic rod 63, the second grinding shaft 44 is driven to slide vertically in the first grinding shaft 34.
[0032] The bottom end of the first grinding inner roller 32 and the top end of the first material distribution table 33 are provided with a first fixing nut 35. The first fixing nut 35 is threaded on the outside of the first grinding shaft 34 to limit the first grinding inner roller 32 and the first material distribution table 33, and facilitates the disassembly of the first grinding inner roller 32 and the first material distribution table 33.
[0033] The bottom end of the second grinding inner roller 42 and the top end of the second material distribution table 43 are provided with a second fixing nut 45. The second fixing nut 45 is threaded on the outside of the second grinding shaft 44 to limit the second grinding inner roller 42 and the second material distribution table 43, and facilitates the disassembly of the second grinding inner roller 42 and the second material distribution table 43.
[0034] Working principle: When in use, the coffee to be ground is introduced into the grinding cylinder 1 through the feed port 2. The drive motor 61 is turned on to drive the gear 62 to control the gear ring 6 to rotate, thereby driving the first grinding shaft 34 and the first grinding inner roller 32 to rotate. The coffee placed between the outer side of the first grinding inner roller 32 and the inner side of the first grinding outer frame 31 is initially ground, and the large coffee particles are initially ground into medium-sized coffee particles.
[0035] When the first grinding shaft 34 rotates, it controls the second grinding shaft 44 to rotate synchronously, driving the second inner grinding roller 42 to rotate. Medium-sized coffee particles fall between the outer side of the second inner grinding roller 42 and the inner side of the second outer grinding frame 41, where the medium-sized coffee particles are ground a second time and quickly ground into fine coffee powder, which falls into the storage box 5 for buffering. The fine coffee powder can be taken out by rotating and opening the storage box 5.
[0036] In this way, by controlling the opening of the electric telescopic rod 63, the second grinding shaft 44 is driven to slide upward in the first grinding shaft 34, thereby driving the second grinding inner roller 42 to move upward in the second grinding outer frame 41, increasing the space between the bottom of the second grinding inner roller 42 and the bottom of the inner side of the second grinding outer frame 41, which can grind relatively coarse coffee powder.
[0037] Conversely, by controlling the opening of the electric telescopic rod 63, the second grinding shaft 44 is driven to slide downward in the first grinding shaft 34, thereby causing the second inner grinding roller 42 to move downward in the second outer grinding frame 41. This reduces the space between the bottom of the second inner grinding roller 42 and the bottom of the inner side of the second outer grinding frame 41, allowing for the grinding of relatively fine coffee powder. This enables flexible adjustments according to grinding needs, improving the overall performance of the coffee bean grinding device.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coffee bean grinding device for coffee roasting processes, comprising a grinding outer cylinder (1), characterized by: The top of the grinding outer cylinder (1) is threaded with a cap (11), the top of the grinding outer cylinder (1) is fixed with a feed inlet (2), the middle of the inner side of the grinding outer cylinder (1) is provided with a grinding mechanism (3), the bottom of the inner side of the grinding outer cylinder (1) is provided with a second grinding mechanism (4), and the bottom of the grinding outer cylinder (1) is provided with a storage frame (5). The grinding mechanism (3) includes a first grinding outer frame (31), which is fixedly snapped into the middle of the inner side of the grinding outer cylinder (1). A first grinding inner roller (32) is provided in the first grinding outer frame (31). A first material distribution table (33) is fixedly installed at the top of the first grinding inner roller (32). A first grinding shaft (34) is movably inserted in the middle of the first grinding inner roller (32) and the first material distribution table (33). The top of the first grinding shaft (34) is rotatably installed in the middle of the cover (11). The second grinding mechanism (4) includes a second grinding outer frame (41), which is fixedly snapped into the bottom inner side of the grinding outer cylinder (1). A second grinding inner roller (42) is provided in the second grinding outer frame (41). A second material distribution table (43) is fixedly installed at the top of the second grinding inner roller (42). A second grinding shaft (44) is movably inserted in the middle of the second grinding inner roller (42) and the second material distribution table (43). The second grinding shaft (44) movably passes through the first grinding shaft (34).
2. The coffee bean grinding device for coffee roasting processing according to claim 1, characterized in that: The outer side of the second grinding shaft (44) is integrally formed with a limiting strip (441), and the middle part of the first grinding shaft (34) is provided with a lifting groove (301), and the limiting strip (441) is slidably engaged in the lifting groove (301).
3. The coffee bean grinding device for coffee roasting processing according to claim 1, characterized in that: The top center of the second grinding shaft (44) is fixedly fitted with a bearing (46), and the top of the cover (11) is threaded with a protective cover (12). An electric telescopic rod (63) is fixedly installed in the protective cover (12), and the drive end of the electric telescopic rod (63) is fixedly fitted into the middle of the bearing (46).
4. The coffee bean grinding device for coffee roasting processing according to claim 3, characterized in that: A gear ring (6) is fixedly installed on the top of the first grinding shaft (34), and a drive motor (61) is fixedly installed in the protective cover (12). A gear (62) is fixedly installed on the drive end of the drive motor (61), and the gear (62) and the gear ring (6) are meshed together.
5. The coffee bean grinding device for coffee roasting processing according to claim 1, characterized in that: The bottom end of the first grinding inner roller (32) and the top end of the first material distribution table (33) are provided with a first fixing nut (35), and the first fixing nut (35) is threadedly installed on the outside of the first grinding shaft (34).
6. The coffee bean grinding device for coffee roasting processing according to claim 1, characterized in that: The bottom end of the second grinding inner roller (42) and the top end of the second material distribution table (43) are provided with a second fixing nut (45), and the second fixing nut (45) is threadedly installed on the outside of the second grinding shaft (44).
7. The coffee bean grinding device for coffee roasting processing according to claim 1, characterized in that: A threaded tube (51) is fixedly installed at the top of the storage box (5), and the threaded tube (51) is threadedly installed at the bottom of the grinding outer cylinder (1).