Grinding transmission spline mechanism of bean grinder

Abstract

The utility model discloses a grinding transmission spline mechanism of a bean grinder, which comprises a driving motor, a grinding component and a cutter adjusting component, the driving motor is arranged in a shell of the bean grinder, an output shaft is arranged on the driving motor, and the output shaft is a spline shaft; the grinding assembly comprises an upper tool rest, an upper cutter head, a lower tool rest and a lower cutter head, and a spline hole matched with the spline shaft is formed in the lower tool rest; the tool adjusting assembly comprises a support, a first sliding block, a second sliding block and an adjusting rod. The transverse movement of the adjusting rod is controlled by rotating the adjusting rod, the first sliding block is pushed to transversely move through the transverse movement of the adjusting rod, the first sliding block transversely moves, and the second sliding block can vertically move under the interaction of the two inclined planes. Meanwhile, the lower tool rest and the lower cutter head are driven to vertically move, so that the distance between the upper cutter head and the lower cutter head is controlled, and when beans are ground, the size of ground particles is changed along with the change of the distance between the upper cutter head and the lower cutter head.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee bean grinders, and mainly relates to a grinding transmission spline mechanism for coffee bean grinders. Background Art

[0002] A bean grinder is a grinding tool that cuts and grinds beans (soybeans, coffee beans) into powder when a motor drives a mechanical cutter to rotate rapidly.

[0003] There are still some inconveniences in the actual use of the grinder. The bean grinder generally grinds the beans by driving the cutter through a motor. The cutter is generally composed of an upper cutter disc and a lower cutter disc. The upper cutter disc and the lower cutter disc of the existing cutter are spaced at a fixed distance. Therefore, only powder with a uniform particle size can be ground out during the grinding of the beans, and the particle size of the beans cannot be changed according to customer needs. Utility Model Content

[0004] The utility model aims to solve at least one problem existing in the prior art. To this end, the purpose of the utility model is to provide a grinding transmission spline mechanism for a coffee grinder.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A grinding transmission spline mechanism for a bean grinder, comprising a driving motor, a grinding assembly and a knife adjusting assembly, wherein the driving motor is mounted inside a housing of the bean grinder, an output shaft is provided on the driving motor, and the output shaft is a spline shaft; the grinding assembly comprises an upper knife holder, an upper knife disc, a lower knife holder and a lower knife disc, the upper knife holder is mounted inside the housing of the bean grinder, the upper knife disc is mounted on the upper knife holder, the lower knife holder is movably connected to the inside of the housing of the bean grinder, the lower knife disc is mounted on the lower knife holder, and the lower knife holder is provided with a spline hole adapted to the spline shaft; the knife adjusting assembly comprises a bracket, a first slider, a second slider and an adjusting rod, the bracket is mounted on the driving motor, the first slider is movably connected to the bracket, the second slider is movably connected to the first slider, the upper end surface of the second slider conflicts with the lower end surface of the lower knife holder, and the adjusting rod is movably connected to the first slider.

[0007] Further on the basis of the above scheme, the knife adjustment assembly also includes a plurality of first springs, a plurality of spring mounting holes are provided on the first slider, the first spring is installed in the spring mounting hole of the first slider, and one end of the first spring is in conflict with the first slider, and the other end is in conflict with the bracket.

[0008] Further on the basis of the above solution, the top surface of the first slider is an inclined surface, the bottom surface of the second slider is also an inclined surface, and the inclined surface of the second slider is matched with the inclined surface of the first slider.

[0009] Further on the basis of the above solution, a threaded hole is provided on the first slider, one end of the adjusting rod is provided with a thread, and the threaded end of the adjusting rod is located in the threaded hole of the first slider.

[0010] Further on the basis of the above scheme, a second spring is sleeved on the output shaft, the lower end of the second spring is in conflict with the end surface of the lower tool holder, and a spring cap is provided on the output shaft, and the upper end of the second spring is in conflict with the spring cap.

[0011] Further on the basis of the above solution, a waist-shaped through hole is provided on the first sliding block.

[0012] Further on the basis of the above scheme, it also includes a plurality of bearings, and the bearings are respectively installed on the output shaft and the adjusting rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model is provided with a knife adjusting component, through which the distance between the upper and lower knife discs can be changed, so that the grinder can grind powders of different particle sizes, thus meeting the needs of customers.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 It is a three-dimensional diagram of the utility model;

[0019] Figure 4 This is an exploded stereogram of the utility model;

[0020] Figure 5 This is the exploded front view of the utility model.

[0021] In the figure: 1. driving motor, 101. output shaft, 201. upper tool holder, 202. upper cutter disc, 203. lower tool holder, 2031. spline hole, 204. lower cutter disc, 301. bracket, 302. first slider, 3021. spring mounting hole, 3022. threaded hole, 3023. waist-shaped through hole, 303. second slider, 304. adjusting rod, 305 first spring, 4. second spring, 5. spring cap, 6. bearing, 100. grinder housing. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0024] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which the utility model belongs. The words "one" or "one" and the like used in the specification and claims of this application do not indicate a quantitative limitation, but indicate the existence of at least one. "Multiple" includes two, which is equivalent to at least two. "Including" or "including" and the like mean that the elements or objects appearing in front of "including" or "including" include the elements or objects listed after "including" or "including" and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and the like are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms of "one", "said" and "the" used in the specification and the appended claims of this application are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0025] Please refer to Figure 1-5 A grinding transmission spline mechanism of a bean grinder includes a driving motor 1, a grinding assembly and a knife adjustment assembly. The driving motor 1 is a driving mechanism that can drive the grinding assembly to grind some bean products, such as coffee beans.

[0026] Furthermore, the drive motor 1 is fixedly installed inside the bean grinder housing 100, and an output shaft 101 is provided on the drive motor 1, and the output shaft 101 is a spline shaft; the grinding assembly includes an upper knife holder 201, an upper knife disc 202, a lower knife holder 203 and a lower knife disc 204, the upper knife holder 201 is fixedly installed inside the bean grinder housing 100, the upper knife disc 202 is fixedly installed on the upper knife holder 201, the lower knife holder 203 is movably connected to the inside of the bean grinder housing 100, and the lower knife disc 204 is fixedly installed on the lower knife holder 203, and opposite to the upper cutter disc 202, a grinding space is formed between the upper cutter disc 202 and the lower cutter disc 204, and a spline hole 2031 adapted to the spline shaft is provided on the lower cutter holder 203, that is, the lower cutter holder 203 (and the lower cutter disc 204) are connected together by a spline connection. When the drive motor 1 is powered on and the output shaft 101 rotates, the lower cutter holder 203 and the lower cutter disc 204 are driven to rotate together, thereby grinding the beans between the upper cutter disc 202 and the lower cutter disc 204.

[0027] In this embodiment, the upper cutter disc 202 is a fixed cutter disc, and the lower cutter disc 204 is a movable cutter disc.

[0028] Furthermore, the knife adjusting assembly includes a bracket 301, a first slider 302, a second slider 303 and an adjusting rod 304, the bracket 301 is installed on the driving motor 1, the first slider 302 is movably connected to the bracket 301, the second slider 303 is movably connected to the first slider 302, the upper end surface of the second slider 303 is in conflict with the lower end surface of the lower knife holder 203, the adjusting rod 304 is movably connected to the first slider 302, and the knife adjusting assembly also includes two first springs 305, the first slider 302 is provided with two spring mounting holes 3021, the first spring 305 is installed in the spring mounting hole 3021 of the first slider 302, and one The first slider 302 has an inclined surface, and the second slider 303 has an inclined surface as well. The inclined surface of the second slider 303 matches the inclined surface of the first slider 302, and the position of the second slider 303 can be changed by the mutual interference of the inclined surfaces. A threaded hole 3022 is provided on the first slider 302, and a thread is provided on one end of the adjusting rod 304, and a knob is provided on the other end of the adjusting rod 304. The threaded end of the adjusting rod 304 is located in the threaded hole 3022 of the first slider 302, that is, the adjusting rod 304 and the first slider 302 are connected together by the cooperation of threads.

[0029] Furthermore, a second spring 4 is sleeved on the output shaft 101, and the lower end of the second spring 4 is in conflict with the end face of the lower tool holder 203. A spring cap 5 is provided on the output shaft 101, and the spring cap 5 is locked on the output shaft 101 through a fastener. The upper end of the second spring 4 is in conflict with the spring cap 5. The second spring 4 and the spring cap 5 play a role of limiting and pressing, limiting the lower tool holder 203 on the output shaft 101, and allowing the lower tool holder 203 to have a certain amount of activity space. When the lower tool holder 203 and the lower knife disc 204 are lifted by force, the second spring 4 is compressed. When there is no external force on the lower tool holder 203 and the lower knife disc 204, the second spring 4 extends to reset the tool holder and the lower knife disc 204.

[0030] Furthermore, a waist-shaped through hole 3023 is provided on the first sliding block 302 , and the length of the waist-shaped through hole 3023 is the range within which the first sliding block 302 can move.

[0031] Furthermore, a grinding transmission spline mechanism of a coffee bean grinder also includes two bearings 6, and the two bearings 6 are respectively installed on the output shaft 101 and the adjustment rod 304.

[0032] In some feasible embodiments, the outer wall of the adjusting rod 304 is provided with threads, and the grinder housing 100 is provided with threads for use with the adjusting rod 304 at the position where the adjusting rod 304 is installed, that is, the adjusting rod 304 can be connected to the grinder housing 100 by threads.

[0033] The utility model is a grinding transmission spline mechanism for a coffee bean grinder, and its working principle is described in conjunction with the accompanying drawings:

[0034] When the coarseness of the bean powder needs to be adjusted, the adjusting rod 304 can be rotated by rotating the knob to control the lateral (leftward) movement of the adjusting rod 304. The adjusting rod 304 will push the first slider 302 to move lateral (leftward). Under the interaction of the two inclined surfaces, the second slider 303 will be lifted up (moved upward), and the lower knife holder 203 and the lower knife disc 204 will be driven to move upward, so that the distance between the upper knife disc 202 and the lower knife disc 204 becomes smaller. When the beans are ground, the distance between the upper knife disc 202 and the lower knife disc 204 becomes smaller. When the knob is turned in the opposite direction to control the lateral (rightward) movement of the adjusting rod 304, the first spring 305 is reset, the first slider 302 moves back (rightward), and the second slider 303 moves downward, which drives the lower knife holder 203 and the lower knife disc 204 to move downward, thereby increasing the distance between the upper knife disc 202 and the lower knife disc 204. When the beans are ground, the distance between the upper knife disc 202 and the lower knife disc 204 increases, and the size of the ground particles increases.

[0035] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A grinding transmission spline mechanism for a coffee bean grinder, comprising a drive motor, a grinding assembly and a knife adjustment assembly, wherein the drive motor is installed inside a housing of the coffee bean grinder, and characterized in that: The driving motor is provided with an output shaft, which is a spline shaft; the grinding assembly comprises an upper knife holder, an upper knife disc, a lower knife holder and a lower knife disc, the upper knife holder is mounted inside the bean grinder housing, the upper knife disc is mounted on the upper knife holder, the lower knife holder is movably connected to the inside of the bean grinder housing, the lower knife disc is mounted on the lower knife holder, and the lower knife holder is provided with a spline hole adapted to the spline shaft; the knife adjustment assembly comprises a bracket, a first slider, a second slider and an adjusting rod, the bracket is mounted on the driving motor, the first slider is movably connected to the bracket, the second slider is movably connected to the first slider, the upper end surface of the second slider is in conflict with the lower end surface of the lower knife holder, and the adjusting rod is movably connected to the first slider.

2. The grinding transmission spline mechanism of a coffee bean grinder according to claim 1, characterized in that: The knife adjustment assembly also includes a plurality of first springs. The first slider is provided with a plurality of spring mounting holes. The first spring is installed in the spring mounting holes of the first slider, and one end of the first spring is in conflict with the first slider, and the other end is in conflict with the bracket.

3. The grinding transmission spline mechanism of a coffee bean grinder according to claim 2, characterized in that: The top surface of the first slider is an inclined surface, and the bottom surface of the second slider is also an inclined surface, and the inclined surface of the second slider is matched with the inclined surface of the first slider.

4. The grinding transmission spline mechanism of a coffee bean grinder according to claim 3, characterized in that: A threaded hole is provided on the first slider, and a thread is provided on one end of the adjusting rod. The threaded end of the adjusting rod is located in the threaded hole of the first slider.

5. The grinding transmission spline mechanism of a coffee bean grinder according to claim 2, characterized in that: A second spring is sleeved on the output shaft, and the lower end of the second spring contacts the end surface of the lower tool holder. A spring cap is arranged on the output shaft, and the upper end of the second spring contacts the spring cap.

6. The grinding transmission spline mechanism of a coffee bean grinder according to claim 2, characterized in that: The first sliding block is provided with a waist-shaped through hole.

7. A coffee bean grinder grinding transmission spline mechanism according to any one of claims 1 to 6, characterized in that: It also includes a plurality of bearings, which are respectively installed on the output shaft and the adjusting rod.

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