grinder

Abstract

The application discloses a grinding machine and belongs to the technical field of raw material grinding equipment. The anti-splashing cover and the crucible are connected in a laminated mode to realize sealing, so that the powder is prevented from splashing outwards from the side of the crucible to the grinding machine and the experiment table due to high-speed rotation, and the entry of external impurities into the mixed powder is reduced, thereby greatly reducing the loss of the powder in the grinding process and ensuring the cleanliness, safety and efficiency of the grinding. In addition, the connecting ring is distributed between the first outer edge of the crucible and the second outer edge of the anti-splashing cover, the two annular parts of the powder backflow ring are located in the anti-splashing cover and the crucible respectively, and the outer side surface of the second annular part is attached to the inner side wall of the anti-splashing cover. In this way, the powder backflow ring can block the splashing powder to prevent the splashing powder from splashing into the anti-splashing cover and the gap between the anti-splashing cover and the crucible, and guide the splashing powder to fall back into the crucible, thereby further greatly reducing the loss of the powder in the grinding process.

Description

Technical Field

[0001] This application relates to the field of raw material grinding equipment technology, and in particular to a grinding mill. Background Technology

[0002] Most grinding machines currently in widespread use have an open structure, which typically has the following drawbacks during the grinding process: 1. When the mixed powder splashes outside the crucible, it changes the theoretical ratio between the mixed powders inside the crucible, affecting subsequent heat treatment, crystal growth and other processes, and ultimately causing deviations in the composition, structure and properties of the prepared material. 2. Powder splashing increases the frequency of cleaning and maintenance costs. Some powder is difficult to remove and may also damage and corrode the equipment. 3. The open structure makes it easy for impurities in the air to enter the crucible and contaminate the powder; the light powder suspended in the air can also pose health risks to the experimenters. Utility Model Content

[0003] This application provides a grinding machine. It addresses the problem of poor performance in existing open-type grinding machines. The technical solution is as follows: On one hand, a grinding mill is provided, the grinding mill comprising: a crucible, a support frame, a drive component, a powder return component, a splash guard, and a grinding rod component; The crucible has an annular first outer edge for overlapping and fixing on the support frame, and the driving component is connected to the support frame for driving the support frame and the crucible to rotate synchronously. The powder reflux component includes a connecting ring and a powder reflux ring. The connecting ring is in sealed contact with the first outer edge and is fastened to the crucible. The inner ring side of the connecting ring is fixedly connected to the outer ring side of the powder reflux ring, so that the powder reflux has a first annular portion and a second annular portion distributed on both sides of the connecting ring. The first annular portion is located inside the crucible. The splash shield is fixedly disposed relative to the crucible and has an annular second outer edge. The second outer edge is in sealing contact with the side of the connecting ring opposite to the first outer edge. The second annular portion is located inside the splash shield, and the outer side of the second annular portion is in contact with the inner wall of the splash shield. The top center of the splash shield has a through hole, through which the grinding rod of the grinding rod component extends into the crucible.

[0004] Optionally, the inner ring side of the powder reflux ring has an anti-stick coating.

[0005] Optionally, the powder recirculation element is elastic.

[0006] Optionally, the splash guard includes: a guard body and an adapter plate, the guard body being fastened to the crucible and having a mounting groove in the central area of ​​the top, the adapter plate being installed in the mounting groove and rotating relative to the guard body, the adapter plate having the through hole and the via hole; The grinding mill further includes: a base, a lifting frame, and a powder scraper component. The lifting frame is connected to the base and can be raised and lowered relative to the base. One end of the powder scraper component is connected to the lifting frame and can slide relative to the lifting frame. The other end of the powder scraper component passes through the through hole and has a scraper head. The scraper head contacts the inner wall of the crucible and the inner ring side of the powder return ring.

[0007] Optionally, one end of the powder scraper component has a movable plate, the bottom of the movable plate has a snap-fit ​​block, and the lifting frame has a first snap-fit ​​groove extending in a first direction and a second snap-fit ​​groove extending in a second direction, wherein the first direction and the second direction intersect. The locking block can slide in conjunction with the first locking groove and the second locking groove, and can be locked and fixed with the lifting frame at any position of the first locking groove or the second locking groove.

[0008] Optionally, the support frame has a clamping component, which is used to clamp and fix the stacked first outer edge, connecting ring and second outer edge.

[0009] Optionally, the driving component includes: a drive motor, a first transmission shaft and a second transmission shaft, wherein the first transmission shaft is arranged perpendicularly to the second transmission shaft, and one end of the first transmission shaft is geared to one end of the second transmission shaft, and the other end of the first transmission shaft is fastened to the support frame; the other end of the second transmission shaft is fastened to the output shaft of the drive motor.

[0010] Optionally, the support frame has a mounting and positioning cavity, the crucible is placed in the mounting and positioning cavity and the first outer edge of the crucible overlaps the edge of the support frame.

[0011] Optionally, the rotation direction of the grinding rod in the grinding rod component is opposite to the rotation direction of the crucible.

[0012] The beneficial effects of the technical solutions provided in this application include at least the following: By incorporating a splash guard within the grinder and sealing it in a stacked configuration with the crucible, powder is prevented from splashing outwards from the crucible's side due to high-speed rotation, impacting the grinder and experimental platform. This also reduces the ingress of external impurities into the mixed powder, significantly minimizing powder loss during the grinding process while ensuring cleanliness, safety, and efficiency. Furthermore, the connecting ring in the powder return component is positioned between the first outer edge of the crucible and the second outer edge of the splash guard. The two annular portions of the powder return ring are located within the splash guard and the crucible, respectively, with the outer surface of the second annular portion fitting against the inner wall of the splash guard. This effectively blocks splashed powder from entering the splash guard and the gap between the splash guard and the crucible, guiding the splashed powder back into the crucible and further significantly reducing powder loss during the grinding process. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a grinding machine provided in an embodiment of this application; Figure 2 yes Figure 1 The diagram shown is an exploded view of part of the grinding machine's structure. Figure 3 This is a schematic diagram of another grinding machine provided in an embodiment of this application; Figure 4 yes Figure 3 The diagram shows a partial structural schematic of the grinding machine; Figure 5 This is a front view of a grinding machine provided in an embodiment of this application.

[0015] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0017] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0019] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a grinding machine provided in an embodiment of this application. Figure 2 yes Figure 1 The diagram shown is an exploded view of a portion of the grinding mill's structure. The grinding mill may include: a crucible 100, a support frame 200, a drive component 300, a powder return component 400, a splash guard 500, and a grinding rod component 600.

[0020] The crucible 100 in the grinder has an annular first outer edge 101 for overlapping and fixing on the support frame 200. The drive component 300 can be connected to the support frame 200 for driving the support frame 200 and the crucible 100 to rotate synchronously.

[0021] The powder return component 400 in the grinding mill includes a connecting ring 401 and a powder return ring 402. The connecting ring 401 is in sealing contact with and securely connected to the first outer edge 101 of the crucible 100. The inner ring side of the connecting ring 401 is fixedly connected to the outer ring side of the powder return ring 402, so that the powder return ring 402 has a first annular portion 402a and a second annular portion 402b distributed on both sides of the connecting ring 401. The first annular portion 402a is located inside the crucible 100 and can fit against the inner sidewall of the edge of the crucible 100. Here, along the axial direction of the powder return component 400, the height of the powder return ring 402 is greater than the thickness of the connecting ring 401.

[0022] The anti-splash cover 500 in the grinder is fixedly mounted relative to the crucible 100 and has an annular second outer edge 501. This second outer edge 501 is in sealing contact with the side of the connecting ring 401 opposite to the first outer edge 101 of the crucible 100. The second annular portion 402b of the powder return ring 402 is located inside the anti-splash cover 500, and the outer side of the second annular portion 402b is in close contact with the inner wall of the anti-splash cover 500. It should be noted that if the grinder is placed vertically during use, the anti-splash cover 500 and the crucible 100 are arranged vertically.

[0023] The top center of the anti-splash cover 500 in the grinder has a through hole k1, through which the grinding rod 601 of the grinding rod component 600 extends into the crucible 100 to grind the raw materials inside the crucible 100. For example, the rotation direction of the grinding rod 601 in the grinding rod component 600 can be opposite to the rotation direction of the crucible 100 to improve grinding efficiency.

[0024] In this embodiment, by providing a splash guard 500 in the grinder and stacking the splash guard 500 with the crucible 100 and sealing their edges, powder is prevented from splashing outward from the side of the crucible 100 to the grinder and test bench due to high-speed rotation. Simultaneously, external impurities are reduced from entering the mixed powder, thereby significantly reducing powder loss during the grinding process and ensuring the cleanliness, safety, and efficiency of the grinding. Furthermore, the connecting ring 401 in the powder return component 400 is distributed between the first outer edge 101 of the crucible 100 and the second outer edge 501 of the splash guard 500. The two annular portions of the powder return ring 402 are located inside the splash guard 500 and the crucible 100, respectively, and the outer side of the second annular portion 402b is in contact with the inner wall of the splash guard 500. Thus, the powder return ring 402 and the connecting ring 401 can block the splashed powder to prevent it from splashing into the anti-splash cover 500 and the gap between the anti-splash cover 500 and the crucible 100, and guide the splashed powder back into the crucible 100, thereby further reducing the powder loss during the grinding process.

[0025] In summary, this application provides a grinding mill, which may include: a crucible, a support frame, a drive component, a powder return component, a splash guard, and a grinding rod component. By incorporating a splash guard in the grinding mill and sealingly connecting the splash guard and the crucible in a stacked configuration, powder is prevented from splashing outwards from the side of the crucible due to high-speed rotation into the grinding mill and experimental platform. Simultaneously, external impurities are reduced from entering the mixed powder, thereby significantly reducing powder loss during the grinding process while ensuring the cleanliness, safety, and efficiency of the grinding. Furthermore, the connecting ring in the powder return component is distributed between the first outer edge of the crucible and the second outer edge of the splash guard, while the two annular portions of the powder return ring are located inside the splash guard and the crucible, respectively, with the outer surface of the second annular portion fitting against the inner wall of the splash guard. Thus, the powder return ring can effectively block splashed powder, preventing it from splashing into the splash guard and the gap between the splash guard and the crucible, guiding the splashed powder back into the crucible, thereby further significantly reducing powder loss during the grinding process.

[0026] For example, the grinding rod component 600 may include: a rotary drive 602, a transition connector 603, and a grinding rod 601. The drive shaft of the rotary drive 602 is connected to one end of the transition connector 603 located inside the splash shield 500 through a through hole k1. One end of the grinding rod 601 is connected to the other end of the transition connector 603, and the axis of the drive shaft of the rotary drive 602 does not coincide with the axis of the grinding rod 601.

[0027] Optionally, the inner ring side of the powder reflux ring 402 has an anti-stick coating (not shown in the figure). This anti-stick coating reduces powder adhesion, allowing the powder to concentrate as much as possible within the crucible 100. For example, the anti-stick coating can be an anti-stick film layer formed by spraying polytetrafluoroethylene (PTFE), or an anti-stick film layer formed by silicon nitride ceramics, etc.

[0028] In this embodiment, the powder return member 400 can be elastic. This allows for a tight seal between the second outer edge (hard surface) of the splash guard 500, the connecting ring 401 (soft surface) in the powder return member 400, and the first outer edge 101 (hard surface) of the crucible 100, preventing powder from entering the connection gap. For example, the powder return member 400 can be a structure made of rubber, or a structure made of thermoplastic polyurethane (TPU) + conductive carbon black, which can effectively reduce residual powder adsorbed on the inner wall due to electrostatic adsorption.

[0029] Optional, please refer to Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of another grinding machine provided in an embodiment of this application. Figure 4 yes Figure 3The diagram shows a partial structural schematic of the grinder. The anti-splash cover 500 may include: a cover body 502 and an adapter plate 503. The cover body 502 can be disposed opposite to and fastened to the crucible 100. The central area of ​​the top of the cover body 502 may have a mounting groove c1. The adapter plate 503 can be installed in the mounting groove c1 and rotatably connected to the cover body 502. The adapter plate 503 may have a through hole k1 and a via hole k2. The grinder may also include: a base 700, a lifting frame 800, and a powder scraper component 900. The lifting frame 800 is connected to the base 700 and can be raised and lowered relative to the base 700. One end of the powder scraper component 900 is connected to the lifting frame 800 and can slide relative to the lifting frame 800. The other end of the powder scraper component 900 passes through the via hole k2 of the adapter plate 503 and has a scraper head 901. The scraper head 901 contacts the inner wall of the crucible 100 and the inner ring side of the powder return ring 402. In this way, the cover 502 can rotate relative to the adapter plate 503 during synchronous rotation with the crucible 100, and the scraper head 901 in the powder scraper component 900 contacts the inner wall of the crucible 100 and / or the inner ring side of the powder return ring 402, ensuring that the scraper can effectively scrape off the powder adhering to the crucible 100 and the inner ring side of the powder return ring 402. Here, the cover 502 is provided with a second outer edge 501, and the rotary drive component 602 in the grinding rod component 600 can be fixed on the lifting frame 800. The lifting frame 800 can be connected to the base 700 through a lifting slide rail, which is not specifically limited here.

[0030] In this application, as Figure 3 and Figure 4As shown, one end of the powder scraper component 900 has a movable plate 902, and the bottom of the movable plate 902 has a locking block 902a. The lifting frame 800 has a first locking groove c2 extending along a first direction f1 and a second locking groove c3 extending along a second direction f2. The first direction f1 and the second direction f2 intersect, and the first direction f1 is parallel to the lifting direction of the lifting frame 800. The locking block 902a can slide with the first locking groove c2 and the second locking groove c3, and can be locked and fixed with the lifting frame 800 at any position of the first locking groove c2 or the second locking groove c3. In this way, the movable plate 902 and the first locking groove c2 and the second locking groove c3 are moved to adjust the fixed position of the powder scraper head 901, ensuring that the scraper head 901 can effectively scrape off the powder adhering to the crucible 100 and the powder return ring 402. For example, the locking block 902a on the movable plate 902 can slide to any position within the first locking groove c2 or the second locking groove c3 to adjust the position of the scraper head 901. It should be noted that, to ensure the stability of the locking block 902a at any position within the first locking groove c2 or the second locking groove c3, the locking block 902a can be magnetically connected to the lifting frame 800, or the locking block 902a can be an elastic element that is interference-fitted with the first locking groove c2 or the second locking groove c3.

[0031] For example, such as Figure 4 As shown, the powder scraper component 900 may include: a movable plate 902, a bent tube 903 and a scraper head 901. The two ends of the bent tube 903 are respectively fastened to the movable plate 902 and the scraper head 901. The bent tube 903 passes through the through hole k2 of the adapter plate 503 and is fastened to the scraper head 901.

[0032] In the embodiments of this application, such as Figure 4 As shown, the support frame 200 may have a clamp 201, which can be used to clamp and fix the first outer edge 101 of the crucible 100, the connecting ring 401, and the second outer edge 501 of the splash shield 500, which are stacked together. In this way, the clamp 201 can clamp and fix the first outer edge 101 of the crucible 100, the connecting ring 401, and the second outer edge 501 of the splash shield 500, or, by loosening the clamp 201, the first outer edge 101 of the crucible 100, the connecting ring 401, and the second outer edge 501 of the splash shield 500 can be easily separated and disassembled.

[0033] Optional, please refer to Figure 5 , Figure 5This is a front view of a grinding machine provided in an embodiment of this application. The driving component 300 may include: a driving motor 301, a first transmission shaft 302, and a second transmission shaft 303. The first transmission shaft 302 and the second transmission shaft 303 are arranged perpendicularly, and one end of the first transmission shaft 302 is geared to one end of the second transmission shaft 303. The other end of the first transmission shaft 302 is fastened to a support frame 200, and the other end of the second transmission shaft 303 is fastened to the output shaft of the driving motor 301. In this way, the driving motor 301 can be placed on the side of the support frame 200, and the support frame 200 can be rotated by the vertically arranged first transmission shaft 302 and second transmission shaft 303.

[0034] In the embodiments of this application, such as Figure 5 As shown, the support frame 200 has a mounting and positioning cavity 202, and the crucible 100 can be placed in the mounting and positioning cavity 202 with its first outer edge 101 overlapping the edge of the support frame 200. In this way, the support frame 200 can position and install the crucible 100 through the mounting and positioning cavity 202, which improves the ease of installation of the crucible 100.

[0035] In summary, this application provides a grinding mill, which may include: a crucible, a support frame, a drive component, a powder return component, a splash guard, and a grinding rod component. By incorporating a splash guard in the grinding mill and sealingly connecting the splash guard and the crucible in a stacked configuration, powder is prevented from splashing outwards from the side of the crucible due to high-speed rotation into the grinding mill and experimental platform. Simultaneously, external impurities are reduced from entering the mixed powder, thereby significantly reducing powder loss during the grinding process while ensuring the cleanliness, safety, and efficiency of the grinding. Furthermore, the connecting ring in the powder return component is distributed between the first outer edge of the crucible and the second outer edge of the splash guard. The two annular portions of the powder return ring are located inside the splash guard and the crucible, respectively, with the outer surface of the second annular portion fitting against the inner wall of the splash guard. Thus, the powder return ring and the connecting ring can effectively block splashed powder, preventing it from splashing into the splash guard and the gap between the splash guard and the crucible, guiding the splashed powder back into the crucible, thereby further significantly reducing powder loss during the grinding process.

[0036] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0037] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A grinding machine, characterized in that, include: Crucible, support frame, drive unit, powder reflux component, anti-splash cover, and grinding rod component; The crucible has an annular first outer edge for overlapping and fixing on the support frame, and the driving component is connected to the support frame for driving the support frame and the crucible to rotate synchronously. The powder reflux component includes a connecting ring and a powder reflux ring. The connecting ring is in sealed contact with the first outer edge and is fastened to the crucible. The inner ring side of the connecting ring is fixedly connected to the outer ring side of the powder reflux ring, so that the powder reflux has a first annular portion and a second annular portion distributed on both sides of the connecting ring. The first annular portion is located inside the crucible. The splash shield is fixedly disposed relative to the crucible and has an annular second outer edge. The second outer edge is in sealing contact with the side of the connecting ring opposite to the first outer edge. The second annular portion is located inside the splash shield, and the outer side of the second annular portion is in contact with the inner wall of the splash shield. The top center of the splash shield has a through hole, through which the grinding rod of the grinding rod component extends into the crucible.

2. The grinding machine according to claim 1, characterized in that, The inner ring side of the powder reflux ring has an anti-stick coating.

3. The grinding machine according to claim 1, characterized in that, The powder recirculation component is elastic.

4. The grinding machine according to claim 1, characterized in that, The splash guard includes: a guard body and an adapter plate. The guard body is fastened to the crucible and has a mounting groove in the central area of ​​the top. The adapter plate is installed in the mounting groove and is rotatably connected to the guard body. The adapter plate has the through hole and the via hole. The grinding mill further includes: a base, a lifting frame, and a powder scraper component. The lifting frame is connected to the base and can be raised and lowered relative to the base. One end of the powder scraper component is connected to the lifting frame and can slide relative to the lifting frame. The other end of the powder scraper component passes through the through hole and has a scraper head. The scraper head contacts the inner wall of the crucible and the inner ring side of the powder return ring.

5. The grinding machine according to claim 4, characterized in that, One end of the powder scraper component has a movable plate, the bottom of the movable plate has a snap-fit ​​block, and the lifting frame has a first snap-fit ​​groove extending in a first direction and a second snap-fit ​​groove extending in a second direction, wherein the first direction and the second direction intersect. The locking block can slide in conjunction with the first locking groove and the second locking groove, and can be locked and fixed with the lifting frame at any position of the first locking groove or the second locking groove.

6. The grinding machine according to any one of claims 1-5, characterized in that, The support frame has clamps, which are used to clamp and fix the stacked first outer edge, connecting ring and second outer edge.

7. The grinding machine according to any one of claims 1-5, characterized in that, The driving component includes: a drive motor, a first drive shaft and a second drive shaft. The first drive shaft is arranged perpendicularly to the second drive shaft, and one end of the first drive shaft is geared to one end of the second drive shaft. The other end of the first drive shaft is fastened to the support frame. The other end of the second drive shaft is fastened to the output shaft of the drive motor.

8. The grinding machine according to claim 7, characterized in that, The support frame has an installation positioning cavity, the crucible is placed in the installation positioning cavity and the first outer edge of the crucible overlaps the edge of the support frame.

9. The grinding machine according to any one of claims 1-5, characterized in that, The grinding rod in the grinding rod component rotates in the opposite direction to the rotation direction of the crucible.

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