Cutter adjusting device for bean grinder and bean grinder thereof

Abstract

The utility model relates to a bean grinder and a cutter adjusting device for the same, and belongs to the technical field of bean processing, the cutter adjusting device comprises a bean grinding support, a lower cutter head assembly and an upper cutter head assembly matched with the lower cutter head assembly are installed in the bean grinding support, the cutter adjusting device further comprises an adjusting part, and the upper cutter head assembly and the lower cutter head assembly form a cutter head set. The adjusting part is in threaded fit with the cutter head assembly, the threaded fit position is of a local breaking structure, the adjusting part can be operated to drive the upper cutter head assembly or the lower cutter head assembly to move axially, and therefore the distance between the upper cutter head of the upper cutter head assembly and the lower cutter head assembly of the lower cutter head assembly is adjusted. According to the cutter adjusting device for the bean grinder and the bean grinder, the use problems that rotation adjustment is difficult, and threads are prone to being stuck in an existing bean grinder can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of bean processing, especially to a knife adjusting device for a bean grinder and the bean grinder. BACKGROUND

[0002] The existing market household and commercial bean grinders and grinding integrated machines generally adopt more than one spring to support the upper knife disc assembly, and the distance between the knife disc and the adjusting piece is adjusted and fixed by the rotation of the internal and external screw threads between the upper knife disc assembly and the adjusting piece, so as to control the fineness of the ground powder. However, this system has the following significant shortcomings: 1. Difficulty in adjusting and poor user experience: due to the action force and reaction force of the spring, the dial is often difficult to rotate when the user adjusts the fineness of the ground powder, resulting in a very poor operation experience. This design not only increases the difficulty of use for the user, but also may reduce the user's satisfaction with the product; 2. Difficulty in cleaning and easy to jam: when cleaning the knife disc, dust or impurities are easy to fall onto the rotating screw thread. Due to the complexity of the screw thread structure, it is difficult to clean these dust or impurities. After a long time of accumulation, these impurities may cause the screw thread to jam, making the machine unable to operate and use normally. SUMMARY

[0003] In order to overcome the defects of the prior art, the utility model provides a knife adjusting device for a bean grinder, which can solve the problems of rotation adjustment difficulty and screw thread jamming of the above-mentioned bean grinder.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a kind of knife adjusting device for a bean grinder, including bean grinder support, lower knife disc assembly and the upper knife disc assembly of adaptation lower knife disc assembly are installed in bean grinder support, upper knife disc assembly and lower knife disc assembly constitute knife disc group, still include adjusting piece, adjusting piece and knife disc group are threadedly matched, and the place of threadedly matched is locally broken structure, operating adjusting piece drives upper knife disc assembly or lower knife disc assembly axial movement, to adjust the distance between the upper knife disc of upper knife disc assembly relative to lower knife disc assembly.

[0006] The utility model preferably provides that a plurality of convex columns are arranged on the bean grinder support or the lower knife disc assembly, an external thread is arranged at the outer edge of the upper knife disc assembly, a groove for breaking the external thread is arranged at the outer edge of the upper knife disc assembly and is matched with the convex column, the adjusting piece is threadedly connected with the external thread of the upper knife disc assembly, and the adjusting piece can drive the upper knife disc assembly to move axially, so as to adjust the distance between the upper knife disc of the upper knife disc assembly relative to the lower knife disc of the lower knife disc assembly.

[0007] The utility model preferably provides that the convex columns are centrally and symmetrically distributed on the bean grinder support, and the groove and the convex column are centrally and symmetrically distributed.

[0008] The utility model discloses preferably technical scheme at, the convex column is arc shape.

[0009] The utility model discloses preferably technical scheme at, the upper fixed support is installed in the bean grinding support, and the upper knife disc and the upper fixed support fixed connection, and the upper fixed support and the adjusting disc fixed connection.

[0010] The utility model discloses preferably technical scheme at, the lower fixed support is installed in the bean grinding support, and the lower knife disc and the lower fixed support fixed connection.

[0011] The utility model discloses preferably technical scheme at, still include fixed seat, and fixed seat and upper knife disc assembly meshing connection.

[0012] The utility model discloses preferably technical scheme at, still be provided with handle, and handle install on upper knife disc assembly.

[0013] The utility model discloses preferably technical scheme at, the outside of adjusting part is provided with the scale for identifying the bean powder thickness of grinding.

[0014] The utility model discloses a kind of bean grinder, including the knife adjusting device of above-mentioned technical scheme.

[0015] The utility model has the advantages of:

[0016] The utility model discloses a kind of for the knife adjusting device of bean grinder and its bean grinder, the knife adjusting device cancels the original spring structure, by adjusting piece and the external thread thread connection of upper knife disc assembly, operating adjusting piece can drive upper knife disc assembly axial movement, to adjust the distance between the upper knife disc of upper knife disc assembly relative to the lower knife disc of lower knife disc assembly, and the outer edge of upper knife disc assembly is also equipped with the groove of broken external thread matched with convex column.The above-mentioned structure allows user to operate adjusting piece, even in the absence of spring direct action, can easily and accurately adjust the distance between upper and lower knife disc, to realize the adjustment of grinding thickness, greatly improve the operation convenience of user, in addition, with the relative rotation of internal and external screw thread, these broken structures can effectively scrape and remove dust and impurities remaining in screw thread, prevent its further accumulation and cause blockage. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 A perspective view of a knife adjusting device for a bean grinder according to Embodiment One of the present application;

[0019] Figure 2 A sectional view of the knife adjusting device for the bean grinder according to Embodiment One of the present application;

[0020] Figure 3 An exploded view of the knife adjusting device for the bean grinder according to Embodiment One of the present application;

[0021] Figure 4 A perspective view of a bean grinding support according to Embodiment One of the present application;

[0022] Figure 5 A perspective view of an adjusting disc according to Embodiment One of the present application.

[0023] In the drawings:

[0024] 1 - bean grinding support; 11 - convex column; 2 - lower fixed support; 3 - lower knife disc; 4 - adjusting disc; 41 - external thread; 42 - groove; 5 - upper fixed support; 6 - upper knife disc; 7 - adjusting member; 8 - fixed seat; 9 - handle; 10 - pressing block. DETAILED DESCRIPTION

[0025] The technical solutions of the present application will be further described in combination with the drawings and through specific embodiments.

[0026] Embodiment One

[0027] The knife adjusting device for the bean grinder provided in this embodiment is as shown in Figures 1-5As shown, it comprises a bean grinding support 1, a lower cutter disc assembly and an upper cutter disc assembly matched with the lower cutter disc assembly are installed in the bean grinding support 1, the upper cutter disc assembly and the lower cutter disc assembly constitute a cutter disc set, and it further comprises an adjusting piece 7, the adjusting piece 7 and the upper cutter disc assembly are threadedly connected and matched, rotating the adjusting piece 7 can drive the upper cutter disc assembly to move axially, thereby adjusting the distance between the upper cutter disc 6 of the upper cutter disc assembly and the lower cutter disc 3 of the lower cutter disc assembly, and a plurality of breaking zones are arranged on the thread structure of one side of the adjusting piece 7 and / or the upper cutter disc assembly in the threadedly connected and matched place, so that the above-mentioned threadedly connected and matched place is locally broken structure, the breaking zones and the upper and lower sides of the thread structure are connected and form a cleaning channel, when the adjusting piece 7 is rotated to drive the upper cutter disc assembly to move axially, with the relative rotation of the internal and external threads in the thread structure, the threads drive the powder and impurities inside the thread structure to be scraped to the position of the breaking zone and then fall out of the outside of the thread structure through the cleaning channel. The technical scheme of the embodiment ingeniously solves the key problems in the production process, user adjustment experience and cleaning and maintenance of the bean grinder through a series of unique structural innovations, and the whole scheme does not contain a spring adjusting mechanism, so it also prevents the problem of uneven force caused by the spring elastic attenuation after use, thereby affecting the uniformity of the ground bean powder. Specifically, first, aiming at the problem that the adjustment process is difficult to rotate due to the spring force when adjusting the fineness of the powder in the traditional bean grinder, the scheme cancels the original spring piece through the cooperation of the precisely designed upper cutter disc assembly and the adjusting piece, adopts internal and external thread degrees to rotate to the thinnest scale as the reference, and realizes a more smooth adjustment experience, from fine to coarse adjustment, which is convenient, easy to operate and simpler. Such design allows users to easily and accurately adjust the distance between the upper and lower cutter discs by operating the adjusting piece, even without the direct action of the spring, thereby realizing the adjustment of the grinding fineness and greatly improving the operation convenience of the users. Secondly, aiming at the problem that dust or impurities easily fall into the rotating thread and cause jamming when cleaning the cutter disc, the scheme sets the breaking zone, which is a locally broken thread design, not only reduces the friction during rotation, making the adjustment process smoother, but also avoids the thread jamming phenomenon caused by long-term use or improper operation, thereby significantly improving the use convenience and durability of the bean grinder, and realizing the self-cleaning function. During the cleaning process, with the relative rotation of the internal and external threads, the threads drive the powder and impurities inside the thread structure to be scraped to the position of the breaking zone and then fall out of the outside of the thread structure through the cleaning channel, preventing further accumulation and blockage. This design not only ensures the cleanliness and smoothness of the thread inside, but also avoids machine failure caused by impurity blockage, ensuring the long-term stable operation and easy maintenance of the bean grinder. In addition, aiming at the problem of a large amount of residual powder caused by the need to confirm the grinding quality through bean grinding test in the production process, since the scheme adopts the assembly limiting strategy, the above and below cutter discs are directly assembled to the finest grinding position based on the plane.This design eliminates the need for each machine on the production line to undergo a bean grinding test during assembly relative to the previous spring support structure, thereby fundamentally avoiding the presence of residual bean powder inside the entire machine, simplifying the production process and significantly optimizing the user's out-of-box experience. Additionally, the aforementioned technical solution can be structurally modified as needed, allowing the lower blade disc assembly to move axially by rotating the adjustment member 7, thereby adjusting the distance between the upper blade disc of the upper blade disc assembly and the lower blade disc of the lower blade disc assembly.

[0028] Specifically, the bean grinding support 1 or lower blade disc assembly is provided with a plurality of protruding columns 11, and the outer edge of the upper blade disc assembly is provided with external threads 41 and recesses 42 that interrupt the external threads 41 and are adapted to the protruding columns 11. The adjustment member 7 is threadedly connected to the external threads 41 of the upper blade disc assembly, and operating the adjustment member 7 can drive the upper blade disc assembly to move axially, thereby adjusting the distance between the upper blade disc 6 of the upper blade disc assembly and the lower blade disc 3 of the lower blade disc assembly. By providing a plurality of protruding columns on the bean grinding support or lower blade disc assembly and designing recesses that interrupt the external threads on the outer edge of the upper blade disc assembly, this innovative design greatly enhances the positioning and stability between the upper blade disc assembly and the bean grinding support or lower blade disc assembly. The close fit of the protruding columns and recesses effectively prevents the upper blade disc from shifting or wobbling during adjustment, ensuring the accuracy and consistency of the grinding process, which is crucial for ensuring the quality of ground coffee beans.

[0029] In this embodiment, the protruding columns 11 are centrally symmetrically distributed on the bean grinding support 1, the recesses 42 and the protruding columns 11 are centrally symmetrically distributed and adapted to each other, and the number of protruding columns is three. This technical solution is a further preferred solution because it effectively improves the stability and precision of the blade adjustment device. The centrally symmetrically distributed protruding columns and recesses ensure that the installation position of the upper blade disc assembly in the bean grinding support is more accurate, avoiding uneven grinding caused by installation deviation. In addition, the centrally symmetric structure also helps to distribute the force, making the upper blade disc assembly more evenly stressed during grinding, reducing wear and vibration caused by uneven stress, thereby prolonging the service life of the equipment. Further, the protruding columns 11 are arc-shaped. The arc-shaped protruding columns can better cooperate with the recesses, reducing friction and resistance during assembly, making the installation and removal of the upper blade disc assembly more smooth. In addition, the arc-shaped protruding columns also help to provide a smoother transition when adjusting the grinding coarseness, avoiding uneven grinding or equipment damage caused by sudden changes during adjustment. This design not only improves the reliability and durability of the equipment, but also enables users to experience a smoother and more comfortable operation experience when adjusting.

[0030] Preferably, the upper cutter assembly includes an adjusting disc 4, an upper fixed support 5, and an upper cutter disc 6, the external thread 41 is arranged at the outer edge of the adjusting disc 4, the upper fixed support 5 is installed in the bean grinding support 1, the upper fixed support 5 and the adjusting disc 4 are fixedly connected, and the upper cutter disc 6 is fixedly connected with the upper fixed support 5. By arranging the external thread at the outer edge of the adjusting disc, the user can more conveniently adjust the distance between the upper cutter disc and the lower cutter disc by rotating the adjusting disc, thereby realizing accurate control of the grinding fineness. At the same time, the fixed connection design of the upper fixed support and the upper cutter disc ensures the stability of the upper cutter disc during grinding, avoiding the problem of uneven grinding caused by vibration or wear. In addition, this design also facilitates the user to disassemble and clean the upper cutter assembly when needed, improving the maintainability and service life of the equipment. Further, the lower cutter assembly includes a lower fixed support 2 and a lower cutter disc 3, the lower fixed support 2 is installed in the bean grinding support 1, and the lower cutter disc 3 is fixedly connected with the lower fixed support 2, facilitating the user to disassemble and clean the entire lower cutter assembly when needed, improving the maintainability and service life of the equipment.

[0031] Preferably, a fixed seat 8 is further included, and the fixed seat 8 is engagedly connected with the upper cutter assembly. The engaged connection design of the fixed seat and the upper cutter assembly ensures the accurate positioning of the upper cutter disc during grinding, avoiding the problem of uneven grinding caused by position deviation. In addition, the design of the fixed seat also helps to disperse the stress of the upper cutter disc during grinding, reducing wear and vibration caused by uneven stress, thereby prolonging the service life of the equipment.

[0032] Preferably, a handle 9 is further arranged, and the handle 9 is installed on the upper cutter assembly. The design of the handle makes it easier for the user to rotate the upper cutter assembly when maintaining and cleaning the cutter adjusting device, reducing the operation difficulty and improving the operation convenience of the equipment.

[0033] Preferably, the pitch width of the external thread 41 is 1.3-1.6mm, and the thread height is 8-12mm. In this embodiment, the pitch width is 1.5mm, and the thread height is 10mm. By reasonably setting the pitch width and thread height, the adjusting disc can more accurately control the distance between the upper cutter disc and the lower cutter disc during rotation, thereby realizing accurate control of the grinding fineness. At the same time, this accurate setting also helps to reduce the problem of uneven grinding caused by errors during adjustment. In addition, reasonable pitch width and thread height design can also improve the durability and wear resistance of the adjusting disc, prolonging the service life of the equipment.

[0034] Preferably, the outer side of the adjusting piece 7 is provided with a scale for identifying the fineness of the ground coffee powder. By providing the scale mark on the adjusting piece, the user can more intuitively understand the setting of the current grinding fineness, avoiding the problem of uneven grinding due to uncertainty in the adjustment process. In addition, the presence of the scale mark also enables the user to more accurately control the amplitude and precision of the adjustment when adjusting the grinding fineness, thereby improving the adjustment efficiency and stability of the device. This design not only improves the ease of use of the device, but also enhances the user's operation experience and satisfaction.

[0035] Preferably, it also includes a pressing block 10. The pressing block 10 is installed on the coffee bean grinding support 1 and is located above the adjusting piece 7, which serves to limit the adjusting piece 7 to prevent over-adjustment.

[0036] It is explained that in the technical solution of the above embodiment, the adjusting piece and the cutter disc set are threadedly connected, which can be threadedly connected with the upper cutter disc assembly or the lower cutter disc assembly. Accordingly, the adjusting piece can be adjusted by adjusting the axial movement of the upper cutter disc assembly or the lower cutter disc assembly, thereby adjusting the distance between the upper cutter disc and the lower cutter disc. The specific implementation details can be slightly adjusted based on the above.

[0037] Embodiment Two

[0038] The coffee grinder provided in this embodiment includes the cutter adjusting device of embodiment one, and also has the advantages of convenient rotation adjustment and non-stuck threads.

[0039] The present application is described by means of preferred embodiments, and those skilled in the art are aware that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present application. The present application is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of the present application are within the scope of the present application.

Claims

1. A knife adjusting device for a coffee grinder, characterized in that: it comprises a coffee grinder support (1) in which a lower knife disc assembly and an upper knife disc assembly adapted to the lower knife disc assembly are installed, and the upper knife disc assembly and the lower knife disc assembly constitute a knife disc set; and it further comprises an adjusting member (7) which is threadedly connected with the knife disc set and has a partially broken structure at the threadedly connected position, and the adjusting member (7) is operated to drive the upper knife disc assembly or the lower knife disc assembly to move axially, so as to adjust the distance between the upper knife disc (6) of the upper knife disc assembly and the lower knife disc (3) of the lower knife disc assembly.

2. The knife adjusting device according to claim 1, characterized in that: the coffee grinder support (1) or the lower knife disc assembly is provided with a plurality of protruding columns (11), the outer edge of the upper knife disc assembly is provided with external threads (41), and the outer edge of the upper knife disc assembly is further provided with grooves (42) which are adapted to the protruding columns (11) and break the external threads (41); the adjusting member (7) is threadedly connected with the external threads (41) of the upper knife disc assembly, and the adjusting member (7) is operated to drive the upper knife disc assembly to move axially, so as to adjust the distance between the upper knife disc (6) of the upper knife disc assembly and the lower knife disc (3) of the lower knife disc assembly.

3. The knife adjusting device according to claim 2, characterized in that: the protruding columns (11) are centrally symmetrically distributed on the coffee grinder support (1), and the grooves (42) which are adapted to the protruding columns (11) are centrally symmetrically distributed.

4. The knife adjusting device according to claim 3, characterized in that: the protruding columns (11) are in arc shape.

5. The knife adjusting device according to claim 2, characterized in that: the upper knife disc assembly comprises an adjusting disc (4), an upper fixed support (5) and an upper knife disc (6); the external threads (41) are arranged at the outer edge of the adjusting disc (4), the upper fixed support (5) is installed in the coffee grinder support (1), the upper knife disc (6) is fixedly connected with the upper fixed support (5), and the upper fixed support (5) is fixedly connected with the adjusting disc (4).

6. The knife adjusting device according to claim 1, characterized in that: the lower knife disc assembly comprises a lower fixed support (2) and a lower knife disc (3); the lower fixed support (2) is installed in the coffee grinder support (1), and the lower knife disc (3) is fixedly connected with the lower fixed support (2).

7. The knife adjusting device according to claim 1, characterized in that: it further comprises a fixing seat (8) which is engagedly connected with the upper knife disc assembly.

8. The knife adjusting device according to claim 1, characterized in that: it is further provided with a handle (9) which is installed on the upper knife disc assembly.

9. The knife adjusting device according to claim 1, characterized in that: the outer side of the adjusting member (7) is provided with a scale for identifying the fineness of coffee powder.

10. A coffee grinder, characterized in that: it comprises the knife adjusting device according to any one of claims 1-9. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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