Anti-caking coffee bean grinding device capable of adjusting particle size of ground coffee

Abstract

The utility model relates to coffee bean powder grinding device technical field, concretely relates to an adjustable anti -caking coffee bean powder grinding device of grinding granularity, including the shell, the inside fixed setting of shell has the grinding inner box, the inside opening of grinding inner box has the grinding chamber, the top of grinding chamber is opened and has the movable slot. The utility model discloses the setting of one -way exhaust port, realizes the hot gas and steam that generates when grinding can smoothly pass through, avoids the condensation and leads to the lump, wherein the sealing plug and one -way exhaust port are through spring no.

Description

Technical Field

[0001] This utility model relates to the technical field of coffee bean grinding devices, specifically to an anti-caking coffee bean grinding device with adjustable grinding particle size. Background Technology

[0002] Materials need to be ground during processing, but most common grinding devices are fixed and cannot adjust the size of the grinding particles as needed, which greatly reduces their applicability. Moreover, the grinding process generates significant vibrations, which can cause the components inside the grinding device to loosen over time, greatly reducing its service life and causing great inconvenience to users.

[0003] A search revealed a utility model patent with publication number CN215901862U, which discloses a grinding device for material processing with adjustable grinding particle size. The device includes a housing, a connecting mechanism, an adjusting mechanism, and a shock-absorbing mechanism. The connecting mechanism is located inside the housing, the adjusting mechanism is located on the housing, and the shock-absorbing mechanism is located at the bottom of the housing. The connecting mechanism includes a cylinder and a movable plate. This utility model utilizes the interaction of a servo motor, a scale, a threaded rod, a threaded block, a connecting plate, and a pointer to adjust the size of the grinding particles as needed. The adjustment process is simple and convenient, greatly improving the applicability and practicality of the grinding device. The interaction of the anti-slip plate, sliding rod, slider, buffer spring, and connecting spring effectively dampens the grinding device, preventing internal components from loosening due to strong vibrations, thus extending the lifespan of the grinding device and providing great convenience to the user.

[0004] The aforementioned patent only uses the interaction of a servo motor, scale, threaded rod, threaded block, connecting plate, and pointer to adjust the size of the grinding particles as needed. The adjustment process is simple and convenient, greatly improving the applicability and practicality of the grinding device. However, it cannot fully solve the problem that when coffee beans are ground, static electricity generated by friction causes fine powder to easily adhere to the blade, powder channel, and inner wall of the container, forming clumps that affect the uniformity of the final coffee powder extraction. In addition, a small amount of coffee powder will stick to the inside of the machine, causing waste and cleaning burden, and making it inconvenient for subsequent use.

[0005] Therefore, it is necessary to invent an anti-caking coffee bean grinding device with adjustable grinding particle size to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an adjustable-particle-size, anti-caking coffee bean grinding device. The one-way exhaust port allows hot air and moisture generated during grinding to pass smoothly, preventing condensation and clumping. The sealing cap is elastically connected to the one-way exhaust port via a spring, allowing manual opening for dispensing and automatic retraction to seal, effectively preventing external oxygen from entering and delaying aroma oxidation. An embedded slot and a micro-fan introduce controllable airflow into the grinding chamber to assist grinding, dispersing fine powder from the inner wall of the chamber and the surface of the grinding disc, promoting uniform powder output through the filter screen, and simultaneously cooling the grinding disc. This improves the device's usability and addresses the problem in existing technologies where static electricity generated during grinding causes fine powder to adhere to the burr, grinding channel, and container walls, forming clumps that affect the uniformity of coffee extraction. Furthermore, a small amount of coffee powder may remain inside the machine, causing waste, cleaning burden, and inconvenience for subsequent use.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable grinding particle size anti-caking coffee bean grinding device, comprising a shell, an inner grinding chamber fixedly disposed inside the shell, a grinding cavity being formed inside the inner grinding chamber, a movable groove being formed at the top of the grinding cavity, a servo motor being installed at the top of the shell, the output shaft of the servo motor being fixedly connected to a screw via a coupling, the screw extending into the movable groove and threadedly fitted with a lifting cylinder, the screw being rotatably connected to the shell, a grinding motor being installed at the bottom of the lifting cylinder, the output shaft of the grinding motor being fixedly connected to a grinding disc via a coupling, an embedding groove being formed on both sides of the grinding cavity, a miniature fan being installed on the inner wall of the embedding groove, a filter screen being movably engaged between the grinding cavity and the embedding groove, the lower end of the filter screen extending to the bottom of the inner grinding chamber and fixedly connected to a magnetic base, and magnetic stones located on both sides of the lower end of the filter screen being symmetrically magnetically attracted to the top of the magnetic base.

[0008] Preferably, guide grooves are provided on both sides of the inner wall of the movable groove, and guide blocks matching the guide grooves are fixed on the top of both sides of the lifting cylinder.

[0009] Preferably, the bottom of the grinding chamber is provided with a material discharge port, and sliding grooves are provided on both sides of the material discharge port. Sliding blocks are slidably installed inside the two sliding grooves. A spring is fixedly connected between the bottom of the sliding block and the sliding groove. A filter screen located below the grinding disc is fixedly connected between the two sliding blocks.

[0010] Preferably, the top of the outer shell is symmetrically provided with one-way exhaust ports, and the top of the grinding chamber is symmetrically provided with exhaust channels located between the grinding chamber and the one-way exhaust ports.

[0011] Preferably, the top of the outer shell is symmetrically provided with two embedding grooves on both sides of the one-way exhaust port. A spring is fixedly connected inside each of the two embedding grooves, and a sealing plug that matches the one-way exhaust port is fixed to the top of each of the two springs.

[0012] According to the claim, an adjustable grinding particle size anti-caking coffee bean grinding device is characterized in that: a collection box is movably provided on the bottom wall inside the outer shell.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. The one-way exhaust port allows the hot air and water vapor generated during grinding to pass through smoothly, preventing condensation and clumping. The sealing plug is connected to the one-way exhaust port by a spring, allowing it to be opened manually when removing powder and automatically springing back to seal when released, effectively preventing external oxygen from entering and delaying aroma oxidation. The embedded slot and micro fan allow controllable airflow to be introduced into the grinding chamber to assist grinding, blowing away fine powder concentrated on the inner wall of the grinding chamber and the surface of the grinding disc, promoting uniform powder output from the filter screen, and cooling the grinding disc at the same time, improving the practicality of the equipment.

[0015] 2. Through the setting and use of servo motor, screw, and lifting cylinder, the distance between the grinding disc and the filter screen can be adjusted, and the size of the coffee bean grinding particles can be adjusted as needed. The adjustment process is simple and convenient. When the filter screen and the grinding disc work together to grind coffee beans, the filter screen is pressed down by spring one. When the grinding work is finished and the spring one is released, spring one rebounds to help the filter screen quickly return to its original position. The generated vibration can achieve a self-cleaning effect, removing coffee powder that is clogging the filter holes and preventing it from affecting the coffee powder collection effect. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

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

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the grinding inner box of this utility model;

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a frontal planar structural diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the connection structure between the grinding inner box, the grinding disc, and the filter screen of this utility model.

[0022] Figure 6 This is a schematic diagram of the connection structure between the sealing plug and the one-way exhaust port of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Outer shell; 2. Grinding inner chamber; 3. Grinding cavity; 4. Movable groove; 401. Guide groove; 5. Servo motor; 6. Screw; 7. Lifting cylinder; 701. Guide block; 8. Grinding motor; 9. Grinding disc; 10. Material discharge port; 11. Sliding groove; 12. Sliding block; 13. Spring 1; 14. Filter screen; 15. Embedded groove 1; 16. Miniature fan; 17. Filter screen; 18. Magnetic iron base; 19. Magnetic stone block; 20. One-way exhaust port; 21. Exhaust channel; 22. Sealing plug; 23. Embedded groove 2; 24. Spring 2; 25. Collection box. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-6 The present invention discloses an adjustable grinding particle size anti-caking coffee bean grinding device, comprising an outer shell 1, an inner grinding chamber 2 fixedly installed inside the outer shell 1, a grinding cavity 3 opened inside the inner grinding chamber 2, a movable groove 4 opened at the top of the grinding cavity 3, a servo motor 5 installed at the top of the outer shell 1, the output shaft of the servo motor 5 being fixedly connected to a screw 6 via a coupling, the screw 6 extending into the movable groove 4 and threadedly connected to a lifting cylinder 7, the screw 6 being rotatably connected to the outer shell 1, a grinding motor 8 installed at the bottom of the lifting cylinder 7, the output shaft of the grinding motor 8 being fixedly connected to a grinding disc 9 via a coupling, the servo motor 5 and the screw 6 cooperating to drive the lifting cylinder 7 to move up and down, adjusting the distance between the grinding disc 9 and the filter screen 14, the size of the coffee bean grinding particles can be adjusted as needed, the front hinge of the outer shell 1 is connected to a matching shell cover plate for easy removal of the collection box 25, the front of the inner grinding chamber 2 is specifically located in front of the grinding cavity 3 and is provided with a detachable sealing cover, which can be connected to each other via hinges for easy addition of coffee beans to be ground;

[0027] Both sides of the grinding chamber 3 are provided with an embedded groove 15. A miniature fan 16 is installed on the inner wall of the embedded groove 15. By setting the miniature fan 16 to face the grinding disc 9 at a grinding angle, the airflow is directed to the grinding working area, blowing away the fine powder adsorbed on the inner wall of the grinding chamber 3 and the grinding disc 9, and promoting the uniform discharge of coffee powder in the filter screen 14, while also assisting in cooling the grinding disc 9.

[0028] A filter screen 17 is movably engaged between the grinding chamber 3 and the embedded groove 15. The filter screen 17 can filter out coffee powder that may get close to the miniature fan 16, so as to avoid affecting the airflow effect of the miniature fan 16.

[0029] The lower end of the filter screen 17 extends to the bottom of the grinding inner box 2 and is fixedly connected to a magnetic iron seat 18. The top of the magnetic iron seat 18 is symmetrically magnetically attached to magnetic stones 19 located on both sides of the lower end of the filter screen 17. The magnetic attraction between the magnetic iron seat 18 and the magnetic stones 19 is used to position the filter screen 17, which also makes it easier to directly pull out the filter screen 17 for cleaning later.

[0030] Guide grooves 401 are provided on both sides of the inner wall of the movable groove 4. Guide blocks 701 matching the guide grooves 401 are fixed on the top of both sides of the lifting cylinder 7. The guide blocks 701 slide along the guide grooves 401 to limit and assist the lifting cylinder 7 to move stably up and down along the screw 6.

[0031] The bottom of the grinding chamber 3 is provided with a feeding port 10, and sliding grooves 11 are provided on both sides of the feeding port 10. Sliding blocks 12 are slidably installed inside the two sliding grooves 11. A spring 13 is fixedly connected between the bottom of the sliding block 12 and the sliding groove 11. A filter screen 14 located below the grinding disc 9 is fixedly connected between the two sliding blocks 12. The filter screen 14 is elastically supported by the spring 13 and can move within the feeding port 10 along the sliding groove 11 via the sliding block 12. The elasticity of the spring 13 keeps the filter screen 14 in close contact with the bottom of the coffee beans, restricting the coffee beans between the grinding disc 9 and the filter screen 14, thus improving the grinding effect. When the grinding disc 9 grinds the coffee beans, the high-speed rotation will exert a downward force on the filter screen 14, which will compress the spring 13. When the compression of the spring 13 is released, its rebound will cause the filter screen 14 to vibrate, and the vibration will accelerate the falling of the coffee powder that is blocked in the filter holes.

[0032] One-way exhaust ports 20 are symmetrically provided on the top of the outer shell 1, and an exhaust channel 21 is symmetrically provided on the top of the grinding chamber 3 between the grinding chamber 3 and the one-way exhaust ports 20. The one-way exhaust ports 20 are connected to the grinding chamber 3 through the exhaust channel 21, which facilitates the discharge of heat and water vapor generated during grinding and avoids condensation that causes coffee powder to clump.

[0033] The top of the outer casing 1 is symmetrically provided with two embedding grooves 23 located on both sides of the one-way exhaust port 20. Two springs 24 are fixedly connected inside the two embedding grooves 23. A sealing plug 22 matching the one-way exhaust port 20 is fixedly fixed on the top of the two springs 24. The sealing plug 22 is connected to the springs 24 through the springs 24 and keeps the sealing plug 22 in a sealed state with the one-way exhaust port 20.

[0034] The working principle of this practical application is as follows:

[0035] Open the front cover of the outer casing 1 and the sealing cover on the front of the grinding chamber 2. Pour the coffee beans to be ground into the grinding chamber 3. Adjust the distance between the grinding disc 9 and the filter screen 14 by moving the lifting cylinder 7 up and down according to the required particle size via the servo motor 5. Once the adjustment is complete, start the grinding motor 8 to drive the grinding disc 9 to grind the coffee beans. When the work begins, the micro fan 16 can be started. The generated air is directed towards the working area of ​​the grinding disc 9 and the filter screen 14, reducing the adsorption of coffee powder on the inner wall and surface of the grinding chamber 3, grinding disc 9, and filter screen 14, and accelerating the passage of coffee powder through the filter screen 14. During the grinding process, the grinding disc 9 will exert pressure on the filter screen 14, which will compress the spring 13. When the grinding disc 9 stops grinding, the spring 13 will reset, causing the filter screen 14 to spring up and generate vibration, which will shake off the coffee powder clogging the filter holes of the filter screen 14. Finally, the coffee powder will be collected in the collection box 25 and can be removed later.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coffee bean grinding device with adjustable grinding particle size and anti-caking properties, comprising a housing (1), characterized in that: A grinding chamber (2) is fixedly installed inside the outer shell (1). A grinding cavity (3) is opened inside the grinding chamber (2). A movable groove (4) is opened at the top of the grinding cavity (3). A servo motor (5) is installed at the top of the outer shell (1). The output shaft of the servo motor (5) is fixedly connected to a screw (6) through a coupling. The screw (6) extends into the movable groove (4) and is threadedly sleeved with a lifting cylinder (7). The screw (6) is rotatably connected to the outer shell (1). A grinding motor (8) is installed in the bottom of the lifting cylinder (7). The output shaft of the grinding motor (8) is fixedly connected to the grinding disc (9) via a coupling. The grinding chamber (3) has an embedding groove (15) on both sides. A miniature fan (16) is installed on the inner wall of the embedding groove (15). A filter screen (17) is movably connected between the grinding chamber (3) and the embedding groove (15). The lower end of the filter screen (17) extends to the bottom of the grinding inner box (2) and is fixedly connected to a magnetic iron base (18). The top of the magnetic iron base (18) is symmetrically magnetically attached to magnetic stones (19) located on both sides of the lower end of the filter screen (17).

2. The coffee bean grinding device with adjustable grinding particle size and anti-caking properties according to claim 1, characterized in that: Guide grooves (401) are provided on both sides of the inner wall of the movable groove (4), and guide blocks (701) matching the guide grooves (401) are fixed on the top of both sides of the lifting cylinder (7).

3. The coffee bean grinding device with adjustable grinding particle size and anti-caking properties according to claim 1, characterized in that: The bottom of the grinding chamber (3) is provided with a material discharge port (10), and sliding grooves (11) are provided on both sides of the material discharge port (10). Sliding blocks (12) are slidably installed inside the two sliding grooves (11). A spring (13) is fixedly connected between the bottom of the sliding block (12) and the sliding groove (11). A filter screen (14) located below the grinding disc (9) is fixedly connected between the two sliding blocks (12).

4. The coffee bean grinding device with adjustable grinding particle size and anti-caking properties according to claim 1, characterized in that: The top of the outer shell (1) is symmetrically provided with one-way exhaust ports (20), and the top of the grinding chamber (3) is symmetrically provided with exhaust channels (21) located between the grinding chamber (3) and the one-way exhaust ports (20).

5. The coffee bean grinding device with adjustable grinding particle size and anti-caking properties according to claim 4, characterized in that: The top of the outer shell (1) is symmetrically provided with two embedding grooves (23) on both sides of the one-way exhaust port (20). The two embedding grooves (23) are fixedly connected with springs (24). The top of the two springs (24) is fixed with a sealing plug (22) that matches the one-way exhaust port (20).

6. The coffee bean grinding device with adjustable grinding particle size and anti-caking properties according to claim 1, characterized in that: A collection box (25) is movably disposed on the bottom wall inside the outer shell (1).

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