Grinding machine for experiment

By introducing a grinding mechanism with rubber rings and magnetic sleeves into the experimental grinder, the problem of scraping powder off the inner wall of cosmetics after grinding was solved, achieving efficient grinding and cleaning of cosmetics while saving water resources.

CN224072140UActive Publication Date: 2026-04-03GUANGDONG QIAOQIAO BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing experimental grinders leave powder adhering to the inner wall of the container after grinding cosmetics, which is difficult to remove, resulting in waste of cosmetics and increased water consumption for cleaning.

Method used

A grinding mechanism comprising a rubber ring and a magnetic sleeve was designed. The rubber ring scrapes away powder from the inner wall, and the magnetic sleeve, in conjunction with the rotating rod, achieves efficient grinding and cleaning of cosmetics.

Benefits of technology

It effectively reduces cosmetic waste, saves water for cleaning, and achieves efficient removal of cosmetic powder and convenient cleaning of containers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a grinding machine for experiments, which belongs to the field of cosmetic production equipment and is characterized in that the grinding machine comprises a base, a bearing mechanism is arranged at the top of the base, a grinding mechanism is arranged at the top of the bearing mechanism, a support is fixedly connected to the rear side of the top of the base, and a motor is fixedly connected to the top of the support; the grinding mechanism comprises a fixing disc, a magnetic attraction sleeve, a rubber ring, a grinding tank and a limiting block, the bottom of the magnetic attraction sleeve is fixedly connected with the top of the fixing disc, the rubber ring is fixedly arranged on the surface of the fixing disc in a sleeving mode, and the surface of the rubber ring makes contact with the inner wall of the grinding tank. The problems that after cosmetics are ground and smashed into powder in the experimental grinding machine for grinding experiments, cosmetic powder attached to the inner wall of a container is inconvenient to scrape off, the cosmetics are prone to being wasted, and more water sources are needed for cleaning the container are solved.
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Description

Technical Field

[0001] This utility model relates to the field of cosmetic production equipment, and in particular to a laboratory grinding machine. Background Technology

[0002] A laboratory grinder is a piece of equipment used in laboratories to grind solid substances into fine powder or paste. In cosmetic production, cosmetics need to be ground into powder for testing to determine whether the content of various substances in the cosmetics meets the standards. For example, this is necessary for the production of granular raw materials for cosmetics or solid cosmetics such as pressed powder and eyeshadow after production.

[0003] When the existing device is first used, the gap between the inner and outer ceramic blades is relatively large, which causes the ceramic material that just enters to fall into the collection cup after only simple rotation and grinding. As the gap between the inner and outer ceramic blades becomes smaller, the ceramic powder produced is smaller in volume, which eventually leads to the ceramic materials of different sizes being mixed together and difficult to separate.

[0004] The existing patent (publication number: CN220126312U) describes an experimental grinding device that uses a motor to drive a crushing mechanism and a grinding mechanism, causing the grinding head to rotate while moving up and down to grind the ceramic material in the grinding tray. The impact force when the grinding head moves downward can crush the ceramic material in the grinding tray, making it easier for the next grinding step. The grinding of the rotating grinding head makes the ground ceramic material powder smaller and more uniform in volume.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, in some existing cosmetic production processes, after the cosmetics are ground into powder inside the grinding machine, the powder adhering to the inner wall of the container is difficult to scrape off, which can easily lead to waste of cosmetics. Furthermore, cleaning the container requires more water.

[0006] Therefore, an experimental grinder is proposed. Utility Model Content

[0007] The purpose of this invention is to provide an experimental grinder that can solve the problem that, in some existing grinding machines used for grinding experiments after the cosmetics have been produced, the powder adhering to the inner wall of the container after the cosmetics have been ground into powder is inconvenient to scrape off, which easily leads to waste of cosmetics and requires more water to clean the container.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an experimental grinder, comprising a base, a support mechanism on the top of the base, a grinding mechanism on the top of the support mechanism, a bracket fixedly connected to the rear side of the top of the base, and a motor fixedly connected to the top of the bracket;

[0009] The grinding mechanism includes a fixed plate, a magnetic sleeve, a rubber ring, a grinding jar, and a limiting block. The bottom of the magnetic sleeve is fixedly connected to the top of the fixed plate. The rubber ring is fixedly sleeved on the surface of the fixed plate and its surface contacts the inner wall of the grinding jar. The top of the limiting block is fixedly connected to the bottom of the grinding jar.

[0010] Preferably, the grinding jar is provided with a rotating rod inside, and a grinding blade is fixedly connected to the surface of the rotating rod. The number of grinding blades is several and they are staggered on the surface of the rotating rod. The rotating rod is movably inserted into the inside of the magnetic sleeve. Constant pressure holes are provided on the front and rear sides of the bottom of the inner wall of the grinding jar.

[0011] Preferably, the grinding jar is provided with a lid on top, the inner wall of the lid is threadedly connected to the surface of the grinding jar, a sealing ring is fixedly connected inside the lid, and the surface of the rotating rod is in movable contact with the inner wall of the sealing ring.

[0012] Preferably, a plug is fixedly connected to the top of the rotating rod, the bottom of the motor output shaft passes through the bracket and extends to the bottom of the bracket, the surface of the motor output shaft is in movable contact with the interior of the bracket, and a slot for cooperating with the plug is provided inside the motor output shaft.

[0013] Preferably, the supporting mechanism includes a slider, a pull rod, a support plate, and a limiting groove. The limiting block is movably inserted into the inside of the limiting groove. The front side of the slider is fixedly connected to the rear side of the support plate. The bottom of the pull rod is fixedly connected to the top of the support plate. The bottom of the support plate contacts the top of the base.

[0014] Preferably, the bracket has a groove inside, the slider is slidably connected inside the groove, and a controller is fixedly connected to the front side of the bracket.

[0015] Preferably, both sides of the top of the tray are fixedly connected to limit plates, and limit pins are movably provided inside the limit plates. Threaded holes for cooperation with the limit pins are opened on both sides of the bracket.

[0016] Preferably, the bottom of the base is fixedly connected with an anti-slip pad, and the number of the anti-slip pads is four and they are evenly distributed on the bottom of the base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By setting up a grinding mechanism, the rubber ring can move on the inner wall of the grinding jar, which makes it easy to scrape out the cosmetics that have been ground into powder inside the grinding jar, thus avoiding waste of cosmetics. At the same time, it can save water when cleaning the inner wall of the grinding jar.

[0019] 2. By setting up a support mechanism, this application can easily move the grinding jar up and down, making it easy to remove and place the grinding jar from the top of the tray, and making it easy to insert the insert block into the slot, thereby facilitating the motor to drive the rotating rod and grinding blade to rotate, so as to achieve the crushing and grinding of cosmetics. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the experimental grinder of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the tray in this utility model;

[0022] Figure 3 This is a three-dimensional connection diagram of the support mechanism in this utility model;

[0023] Figure 4 This is a three-dimensional exploded view of the rubber ring and grinding jar in this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the bottom of the motor in this utility model;

[0025] Figure 6 This is a three-dimensional structural diagram of the bottom of the base in this utility model.

[0026] In the diagram, 1. Base; 2. Supporting mechanism; 201. Slider; 202. Pull rod; 203. Support plate; 204. Limiting groove; 3. Anti-slip pad; 4. Can lid; 5. Controller; 6. Motor; 7. Threaded hole; 8. Bracket; 9. Grinding mechanism; 901. Fixed plate; 902. Magnetic sleeve; 903. Rubber ring; 904. Grinding can; 905. Limiting block; 10. Slide groove; 11. Limiting plate; 12. Limiting pin; 13. Constant pressure hole; 14. Grinding blade; 15. Insert block; 16. Sealing ring; 17. Rotating rod; 18. Slot. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-6 The present invention provides the following technical solution:

[0029] An experimental grinder includes a base 1, a support mechanism 2 is provided on the top of the base 1, a grinding mechanism 9 is provided on the top of the support mechanism 2, a bracket 8 is fixedly connected to the rear side of the top of the base 1, and a motor 6 is fixedly connected to the top of the bracket 8.

[0030] The grinding mechanism 9 includes a fixed plate 901, a magnetic sleeve 902, a rubber ring 903, a grinding jar 904, and a limiting block 905. The bottom of the magnetic sleeve 902 is fixedly connected to the top of the fixed plate 901. The rubber ring 903 is fixedly sleeved on the surface of the fixed plate 901. The surface of the rubber ring 903 contacts the inner wall of the grinding jar 904. The top of the limiting block 905 is fixedly connected to the bottom of the grinding jar 904.

[0031] In this embodiment: the operator first places the cosmetic product requiring grinding and pulverization into the grinding jar 904, seals it with the lid 4, then pulls the lever 202, raising the tray 203 and inserting the rotating rod 17 into the slot 18 of the motor 6. The tray 203 and grinding jar 904 are then fixed with the limiting pin 12. The controller 5 then starts the motor 6, and the output shaft drives the rotating rod 17 to rotate. Because the insert 15 engages with the slot 18 and the limiting block 905 engages with the limiting groove 204, the grinding jar 904 will not rotate. The rotating rod 17 is magnetically attracted to the magnetic sleeve 902 without affecting its rotation. The grinding blades 14 on the surface of the container rotate at high speed to break down and grind the cosmetics into powder. After grinding, the lid 4 is opened and the rotating rod 17 is pulled to move the magnetic sleeve 902, the fixed plate 901 and the rubber ring 903. The rubber ring 903 scrapes off the powder from the inner wall, reducing waste and saving water during cleaning. This solves the problem that in some existing grinding machines used for grinding experiments after cosmetics are produced, the cosmetic powder adhering to the inner wall of the container is inconvenient to scrape off after the cosmetics are ground into powder inside the experimental grinding machine, which easily leads to waste of cosmetics and requires more water to clean the container.

[0032] Specifically, such as Figure 4 As shown, a rotating rod 17 is provided inside the grinding tank 904. Grinding blades 14 are fixedly connected to the surface of the rotating rod 17. There are several grinding blades 14, which are distributed alternately on the surface of the rotating rod 17. The rotating rod 17 is movably inserted into the inside of the magnetic sleeve 902. Constant pressure holes 13 are provided on the front and rear sides of the bottom of the inner wall of the grinding tank 904.

[0033] Specifically, such as Figure 4 As shown, the top of the grinding jar 904 is provided with a jar cover 4. The inner wall of the jar cover 4 is threadedly connected to the surface of the grinding jar 904. A sealing ring 16 is fixedly connected inside the jar cover 4. The surface of the rotating rod 17 is in contact with the inner wall of the sealing ring 16.

[0034] Specifically, such as Figure 4 and Figure 5 As shown, the top of the rotating rod 17 is fixedly connected to the plug 15, the bottom of the output shaft of the motor 6 passes through the bracket 8 and extends to the bottom of the bracket 8, the surface of the output shaft of the motor 6 is in active contact with the inside of the bracket 8, and the inside of the output shaft of the motor 6 is provided with a slot 18 that is used to cooperate with the plug 15.

[0035] In this embodiment: by adding cosmetics into the grinding jar 904 and sealing it with the lid 4, the rotating rod 17 makes contact with the inner wall of the sealing ring 16 inside the lid 4, thus keeping the lid 4 sealed without affecting the rotation of the rotating rod 17. By connecting the limiting pin 12 to the threaded hole 7, the insert 15 can be inserted into the slot 18. Then, by controlling the motor 6 to rotate, the rotating rod 17 and the grinding blade 14 can rotate at high speed, which can easily break down the cosmetics inside the grinding jar 904.

[0036] Specifically, such as Figure 3 As shown, the supporting mechanism 2 includes a slider 201, a pull rod 202, a support plate 203, and a limiting groove 204. The limiting block 905 is movably inserted into the limiting groove 204. The front side of the slider 201 is fixedly connected to the rear side of the support plate 203. The bottom of the pull rod 202 is fixedly connected to the top of the support plate 203. The bottom of the support plate 203 is in contact with the top of the base 1.

[0037] Specifically, such as Figure 2 and Figure 3 As shown, a groove 10 is provided inside the bracket 8, and the slider 201 is slidably connected inside the groove 10. A controller 5 is fixedly connected to the front side of the bracket 8.

[0038] In this embodiment: by pulling the lever 202 upward, the slider 201 can slide inside the groove 10, which facilitates the upward movement of the tray 203, the insertion block 15 can be inserted into the slot 18, and the limiting pin 12 can be threadedly connected to the threaded hole 7. By the contact between the limiting block 905 and the inner wall of the limiting groove 204, the grinding jar 904 can be prevented from rotating.

[0039] Specifically, such as Figure 2 and Figure 3 As shown, limit plates 11 are fixedly connected to both sides of the top of the support plate 203. Limit pins 12 are movably provided inside the limit plates 11. Threaded holes 7 for cooperating with the limit pins 12 are opened on both sides of the bracket 8.

[0040] Specifically, such as Figure 6 As shown, the bottom of the base 1 is fixedly connected with an anti-slip pad 3. There are four anti-slip pads 3, which are evenly distributed on the bottom of the base 1.

[0041] In this embodiment: by threading the limiting pin 12 to the threaded hole 7, the grinding jar 904 can be easily positioned at the position where the insert block 15 is inserted into the slot 18, so that the output shaft of the motor 6 can drive the rotating rod 17 to rotate. By moving the base 1 to a stable external worktable, the anti-slip pad 3 can stably support the base 1 and prevent the base 1 from shifting during operation.

[0042] Working principle: The operator first places the cosmetic to be ground into the grinding jar 904, then seals the grinding jar 904 with the lid 4. The inner wall of the lid 4 is threaded to the surface of the grinding jar 904, and the sealing ring 16 inside the lid 4 is in contact with the surface of the rotating rod 17. This ensures the sealing of the grinding jar 904 during the grinding process, preventing cosmetic leakage, and does not affect the rotation of the rotating rod 17. Then, the pull rod 202 is pulled, and the support plate 203 moves upward. The slider 201 on the rear side of the support plate 203 slides in the groove 10 of the bracket 8, ensuring that the support plate 203 rises smoothly. The insert 15 at the top of the rotating rod 17 is then inserted into the output shaft of the motor 6. Inside the slot 18, the limiting pin 12 in the limiting plate 11 is then threadedly connected to the threaded holes 7 on both sides of the bracket 8, thereby firmly fixing the support plate 203 and the grinding jar 904 in the designated position. Then, the motor 6 is started by the controller 5, and the output shaft of the motor 6 begins to rotate. Since the insert block 15 is inserted into the slot 18, the grinding jar 904 is inserted into the limiting slot 204 through the limiting block 905, which can prevent the grinding jar 904 from rotating. The output shaft of the motor 6 drives the rotating rod 17 to rotate at high speed. The rotating rod 17 is movably inserted into the magnetic sleeve 902. The two not only generate a magnetic attraction but also do not affect the rotation of the rotating rod 17. Several grinding blades are interlaced on the surface of the rotating rod 17. As the rotating rod 17 rotates, the grinding blade 14 also rotates at high speed, grinding the cosmetics inside the grinding jar 904 until they are ground into powder. After grinding, the jar lid 4 is opened, and the rotating rod 17 is pulled outward. Because the rotating rod 17 is magnetically attracted to the magnetic sleeve 902, and the bottom of the magnetic sleeve 902 is fixed to the top of the fixed plate 901, with a rubber ring 903 on the surface of the fixed plate 901, the rotating rod 17 will move the magnetic sleeve 902, the fixed plate 901, and the rubber ring 903 together. During the movement, the rubber ring 903 will scrape off the cosmetic powder adhering to the inner wall of the grinding jar 904, effectively reducing material waste and also improving the grinding efficiency of the grinding jar. The 904 model is more water-efficient for cleaning. Furthermore, the constant pressure holes 13 on the front and rear sides of the bottom of the inner wall of the grinding jar 904 maintain stable internal air pressure when the rubber ring 903 moves, allowing the rubber ring 903 to move smoothly. This facilitates the sampling, grinding, and pulverizing of cosmetics during production, making it convenient for experimental testing. It solves the problem of existing grinding machines used for cosmetic production where, after grinding and pulverizing the cosmetics, the powder adhering to the inner wall of the container is difficult to scrape off, leading to waste and requiring more water for cleaning.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A laboratory grinder, comprising a base (1), characterized in that: The base (1) is provided with a support mechanism (2) at the top, and a grinding mechanism (9) is provided at the top of the support mechanism (2). A bracket (8) is fixedly connected to the rear side of the top of the base (1), and a motor (6) is fixedly connected to the top of the bracket (8). The grinding mechanism (9) includes a fixed plate (901), a magnetic sleeve (902), a rubber ring (903), a grinding jar (904), and a limiting block (905). The bottom of the magnetic sleeve (902) is fixedly connected to the top of the fixed plate (901). The rubber ring (903) is fixedly sleeved on the surface of the fixed plate (901). The surface of the rubber ring (903) is in contact with the inner wall of the grinding jar (904). The top of the limiting block (905) is fixedly connected to the bottom of the grinding jar (904).

2. The experimental grinder according to claim 1, characterized in that: The grinding jar (904) is equipped with a rotating rod (17) inside. Grinding blades (14) are fixedly connected to the surface of the rotating rod (17). There are several grinding blades (14) and they are staggered on the surface of the rotating rod (17). The rotating rod (17) is movably inserted into the inside of the magnetic sleeve (902). Constant pressure holes (13) are opened on the front and rear sides of the bottom of the inner wall of the grinding jar (904).

3. The experimental grinder according to claim 2, characterized in that: The grinding jar (904) is provided with a lid (4) on the top. The inner wall of the lid (4) is threadedly connected to the surface of the grinding jar (904). A sealing ring (16) is fixedly connected inside the lid (4). The surface of the rotating rod (17) is in contact with the inner wall of the sealing ring (16).

4. The experimental grinder according to claim 2, characterized in that: The top of the rotating rod (17) is fixedly connected to the insert (15), the bottom of the output shaft of the motor (6) passes through the bracket (8) and extends to the bottom of the bracket (8), the surface of the output shaft of the motor (6) is in movable contact with the inside of the bracket (8), and the inside of the output shaft of the motor (6) is provided with a slot (18) for use with the insert (15).

5. The experimental grinder according to claim 1, characterized in that: The supporting mechanism (2) includes a slider (201), a pull rod (202), a support plate (203), and a limiting groove (204). The limiting block (905) is movably inserted into the limiting groove (204). The front side of the slider (201) is fixedly connected to the rear side of the support plate (203). The bottom of the pull rod (202) is fixedly connected to the top of the support plate (203). The bottom of the support plate (203) is in contact with the top of the base (1).

6. The experimental grinder according to claim 5, characterized in that: The bracket (8) has a groove (10) inside, and the slider (201) is slidably connected inside the groove (10). A controller (5) is fixedly connected to the front side of the bracket (8).

7. The experimental grinder according to claim 5, characterized in that: Limiting plates (11) are fixedly connected to both sides of the top of the tray (203). Limiting pins (12) are movably provided inside the limiting plates (11). Threaded holes (7) for cooperating with the limiting pins (12) are opened on both sides of the bracket (8).

8. The experimental grinder according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected with an anti-slip pad (3), and the number of the anti-slip pads (3) is four and they are evenly distributed on the bottom of the base (1).

Citation Information

Patent Citations

  • Grinding device for experiment

    CN220126312U