Powder grinding device with negative pressure feeding function
By designing a powder grinding device with negative pressure feeding function, and using a semi-circular grinding disc and sealing mechanism, the sealing and clogging problems of traditional devices are solved, achieving efficient and uniform powder grinding and environmentally friendly dust control.
Patent Information
- Application Number
- CN202423275850.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Traditional powder grinding equipment suffers from poor sealing and clogging, leading to dust leakage that pollutes the environment, reduces grinding efficiency, and affects powder quality.
The powder grinding device with negative pressure feeding function is designed, which adopts a semi-circular annular grinding disc, movable grinding balls and rolling plate, combined with negative pressure machine and sealing mechanism to achieve closed transmission and anti-clogging.
It improves grinding efficiency and powder uniformity, reduces dust pollution, protects the health of operators, and ensures stable equipment operation.
Smart Images
Figure CN223717323U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to powder grinding device technical field, specifically is a kind of powder grinding device with negative pressure feeding function. BACKGROUND
[0002] In industrial production, powder grinding device is a kind of commonly used equipment, mainly used to grind blocky or granular raw materials into fine powder to meet the needs of different processes. However, the traditional powder grinding device has some significant defects due to the shortcomings of structural design during use.
[0003] Firstly, common powder grinding devices usually lack effective sealing mechanisms, and the dust generated during the grinding process can easily leak. This not only pollutes the working environment, but also poses a potential threat to the health of the operators. Dust leakage can also negatively affect the grinding process, leading to decreased grinding efficiency and unstable powder quality, making it difficult to meet process requirements. Secondly, traditional powder grinding devices are prone to clogging and material accumulation during the grinding process. This is usually caused by the inability to timely discharge the powder generated during the grinding process. The accumulation of powder on the grinding disc can reduce the efficiency of the equipment and even cause mechanical damage to the grinding disc, increasing the cost of equipment maintenance and replacement. SUMMARY
[0004] (I) Technical problem solved
[0005] To overcome the shortcomings of the prior art, the utility model provides a powder grinding device with negative pressure feeding function, which has the advantages of anti-clogging and good sealing effect, and solves the problems of easy clogging and poor sealing effect.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned anti-clogging and good sealing effect, the utility model provides the following technical solutions:
[0008] A powder grinding device with negative pressure feeding function, comprising a shell, a support frame mounted on the outside of the shell, a sealing mechanism provided at the bottom of the shell, a first motor and a negative pressure pump provided at the top of the shell, a rotating rod provided inside the shell, the rotating rod being connected to the output end of the first motor, a filter element provided at the top inside the shell, a scraper provided outside the filter element, the scraper being mounted on a rotating shaft, a stabilizing frame provided at the bottom of the scraper for stabilizing the rotating shaft, a positioning ring provided at the bottom of the stabilizing frame, a rolling plate provided at the bottom of the positioning ring, a filter screen mounted at the bottom of the rolling plate, a cleaning rod mounted at the bottom of the filter screen, a grinding disc provided at the bottom inside the shell, two grinding balls provided inside the grinding disc, the grinding balls being fixed on the rotating shaft by a support rod, and five scrapers provided at the bottom of the grinding disc.
[0009] As a preferred technical scheme of the utility model, the shell top is provided with a through hole matched with the first motor and the negative pressure pump, the filter core is provided with a through hole matched with the rotating rod, the output ends of the first motor and the negative pressure pump are located inside the filter core, the scraping strip is L-shaped, and the inner surface of the scraping strip is in sliding contact with the outer surface of the filter core, and the bottom of the scraping strip is fixedly connected with the rotating shaft.
[0010] As a preferred technical scheme of the utility model, the outer ring of the stabilizing frame is fixedly installed inside the shell, the rotating shaft penetrates and is clamped in the through hole pre-set in the stabilizing frame, the bottom of the stabilifying frame is provided with a positioning ring, the positioning ring is used for isolating the rolling plate, the rolling plate is fixedly connected with the rotating shaft, and the center position of the rolling plate is provided with a through hole matched with the rotating shaft.
[0011] As a preferred technical scheme of the utility model, the filter screen is fixedly installed on the rotating shaft and is rotationally connected with the rotating shaft, the filter screen is located at the bottom of the rolling plate, the center position of the filter screen is provided with a through hole matched with the rotating shaft, the filter screen is not provided with filter holes inside, the cleaning rod is installed on the rotating shaft and is provided with a through hole matched with the rotating rod, and the cleaning rod is located below the filter screen.
[0012] As a preferred technical scheme of the utility model, the grinding disc is arranged in a half annular shape, a plurality of filter holes are arranged on the grinding disc, two movable grinding balls are arranged inside the grinding disc, the grinding balls are fixed on the rotating rod through supporting rods, five scraping plates are arranged at the bottom of the grinding disc, and the five scraping plates are evenly distributed around the center of the rotating shaft and are installed at the bottom of the rotating shaft.
[0013] As a preferred technical scheme of the utility model, the sealing mechanism is composed of a mounting block, a fixed ring, a second motor, two connecting plates and a cover, the mounting block is fixedly installed at the bottom of the shell, the second motor is installed at the bottom of the mounting block through the fixed ring, the two connecting plates are oppositely installed at the two ends of the second motor, and the left and right ends of the cover are provided with protruding shafts matched with the connecting plates.
[0014] (Three) beneficial effects
[0015] Compared with the prior art, the utility model provides a powder grinding device with a negative pressure feeding function, which has the following beneficial effects:
[0016] The powder grinding device with the negative pressure feeding function, through the design of the grinding disc, the grinding ball and the rolling plate, the grinding disc is designed as a semi-circular ring and is provided with a plurality of filter holes, cooperates with the movable grinding ball in the inside, can efficiently grind the blocky or granular raw materials, ensures that the powder is fine and uniform. The grinding ball is fixed on the rotating shaft through the supporting rod, rotates with the rotating shaft to stably grind, effectively improves the efficiency and uniformity of the grinding process. In addition, the rolling plate plays a key role in the powder treatment process, it can break the caked powder entering the inside of the shell, and guide it to the grinding disc through the filter screen for further grinding. Through the design of the negative pressure machine and the sealing mechanism, the closed transmission of the feeding process is realized by using the negative pressure effect, avoids the raw materials from producing dust overflow when entering the grinding device, thereby greatly improves the working environment, reduces the dust pollution, and protects the health of the operator. Meanwhile, the second motor of the device drives the cover through the connecting plate, can effectively seal the bottom of the shell, prevents the powder from leaking, provides good airtightness and reliability for the whole grinding process. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a structure schematic diagram of the utility model;
[0018] Figure 2 It is a structure shell section view of the utility model;
[0019] Figure 3 It is a structure shell inside end top connecting exploded view of the utility model;
[0020] Figure 4 It is a structure shell inside end bottom connecting view of the utility model;
[0021] Figure 5 It is a structure sealing mechanism connecting exploded view of the utility model.
[0022] In the drawing: 1, shell; 2, support frame; 3, feed pipe; 4, first motor; 5, negative pressure pump; 6, sealing mechanism; 601, mounting block; 602, fixed ring; 603, second motor; 604, connecting plate; 605, cover; 7, filter core; 8, scraping strip; 9, stabilizing frame; 10, filter screen; 11, positioning ring; 12, rolling plate; 13, cleaning rod; 14, grinding disc; 15, grinding ball; 16, supporting rod; 17, scraper; 18, rotating rod. DETAILED DESCRIPTION
[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0024] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.
[0025] In the description of the present application, it should be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0026] Please refer to Figures 1-5 ,
[0027] A powder grinding device with negative pressure feeding function, comprising a shell 1, a supporting frame 2 is installed outside the shell 1, a sealing mechanism 6 is arranged at the bottom of the shell 1, a first motor 4 and a negative pressure pump 5 are arranged at the top of the shell 1, a rotating rod 18 is arranged inside the shell 1, the rotating rod 18 is connected with the output end of the first motor 4, a filter element 7 is arranged at the top inside the shell 1, a scraping strip 8 is arranged outside the filter element 7, the scraping strip 8 is installed on a rotating shaft, a stabilizing frame 9 is arranged at the bottom of the scraping strip 8 for stabilizing the rotating shaft, a positioning ring 11 is arranged at the bottom of the stabilizing frame 9, a rolling plate 12 is arranged at the bottom of the positioning ring 11, a filter screen 10 is installed at the bottom of the rolling plate 12, a cleaning rod 13 is installed at the bottom of the filter screen 10, a grinding disc 14 is arranged at the bottom inside the shell 1, two grinding balls 15 are arranged inside the grinding disc 14, the grinding balls 15 are fixed on the rotating shaft through supporting rods 16, and five scraping plates 17 are arranged at the bottom of the grinding disc 14.
[0028] In the present example, the top of the shell 1 is provided with a through hole matched with the first motor 4 and the negative pressure pump 5, the filter element 7 is provided with a through hole matched with the rotating rod 18, the output ends of the first motor 4 and the negative pressure pump 5 are located inside the filter element 7, the scraping strip 8 is L-shaped, and the inner surface of the scraping strip 8 is in sliding contact with the outer surface of the filter element 7, and the bottom of the scraping strip 8 is fixedly connected with the rotating shaft.
[0029] It should be noted that the two through holes not only ensure that the output ends of the first motor 4 and the negative pressure pump 5 can smoothly extend into the inside of the filter element 7, but also prevent the entry of dust and other impurities through close cooperation, thereby ensuring the cleanliness and operating efficiency inside the equipment.
[0030] In the present example, the outer ring of the stabilizing frame 9 is fixedly installed inside the shell 1, and the rotating shaft penetrates and is clamped in the pre-set through hole inside the stabilizing frame 9, the bottom of the stabilizing frame 9 is provided with a positioning ring 11, the positioning ring 11 is used to isolate the rolling plate 12, the rolling plate 12 is fixedly connected with the rotating shaft, and the center position of the rolling plate 12 is provided with a through hole matched with the rotating shaft.
[0031] It should be noted that the rotating rod 18 is cleverly penetrated and clamped in the pre-set through hole inside the stabilizing frame 9, and such a matching mode not only ensures that the rotating rod 18 can rotate smoothly, but also prevents it from shaking or deviating during work.
[0032] In the present example, the filter screen 10 is fixedly installed on the rotating shaft and is in rotary connection with the rotating shaft, and the filter screen 10 is located at the bottom of the rolling plate 12, the center position of the filter screen 10 is provided with a through hole matched with the rotating shaft, and the filter screen 10 is not provided with filter holes inside, the cleaning rod 13 is installed on the rotating shaft and is provided with a through hole matched with the rotating rod 18, and the cleaning rod 13 is located below the filter screen 10.
[0033] It should be noted that the center position of the filter screen 10 is cleverly provided with a through hole matched with the rotating rod 18, which not only allows the rotating rod 18 to smoothly pass through the filter screen 10, but also prevents the entry of powder and other impurities through close cooperation.
[0034] In the present example, the grinding disc 14 is arranged in a half circular ring shape, and a plurality of filter holes are provided on the grinding disc 14, two movable grinding balls 15 are provided inside the grinding disc 14, the grinding balls 15 are fixed on the rotating rod 18 through the support rod 16, five scraping plates 17 are provided at the bottom of the grinding disc 14, and the five scraping plates 17 are evenly distributed around the center of the rotating shaft and are installed at the bottom of the rotating shaft.
[0035] It should be noted that a plurality of filter holes are carefully arranged on the grinding disc 14, and the main function of these filter holes is to allow fine powder generated during the grinding process to pass through, while larger particles or impurities are left on the grinding disc 14, thereby achieving the screening and separation of the powder.
[0036] In this example, the sealing mechanism 6 is composed of a mounting block 601, a fixed ring 602, a second motor 603, two connecting plates 604, and a cover 605. The mounting block 601 is fixedly installed at the bottom of the shell 1, the second motor 603 is installed at the bottom of the mounting block 601 through the fixed ring 602, the two connecting plates 604 are installed at the two ends of the second motor 603 in an opposite manner, and the left and right ends of the cover 605 are provided with protruding shafts matched with the connecting plates 604.
[0037] It should be noted that the sealing mechanism 6, as one of the key components of the powder grinding device, mainly ensures that the dust and powder generated during the grinding process do not leak to the outside of the equipment, thereby maintaining the cleanliness of the working environment and the stable operation of the equipment.
[0038] In summary: when using the device, first connect the feed pipe 3 to the powder container, then start the negative pressure pump 5 and the first motor 4. At this time, the powder is sucked into the inside of the shell 1 under the action of negative pressure, and first falls onto the top of the filter screen 10. The crushing plate 12 will crush the caked powder and deliver the powder to the grinding disc 14 below through the filter holes of the outer ring of the filter screen 10. At the same time, the scraper 8 continuously operates under the drive of the rotating shaft, scraping off the powder adsorbed outside the filter core 7, preventing the powder from blocking the filter core 7, and ensuring that the negative pressure suction force is always stable. When the powder enters the grinding disc 14, the rotating shaft drives the grinding balls 15 to grind the powder efficiently through the support rods 16. The ground powder is evenly dropped into the bottom of the shell 1 through the filter holes of the grinding disc 14. After grinding, the second motor 603 is started to control the cover 605 to open through the connecting plates 604, and the powder is smoothly discharged from the discharge port under the guidance of the scraper 17. The whole process realizes efficient and closed powder grinding and discharge, ensuring smooth operation of the device and excellent quality of the powder.
[0039] Beneficial effects:
[0040] The powder grinding device with negative pressure feeding function, through the design of the grinding disc, grinding ball and the rolling plate, the grinding disc is designed as a semi-circular ring and is provided with a plurality of filter holes, cooperating with the movable grinding ball inside, can efficiently grind the blocky or granular raw materials, ensure the fine and uniform powder. The grinding ball is fixed on the rotating shaft through the supporting rod, rotates with the rotating shaft to carry out stable grinding operation, effectively improves the efficiency and uniformity of the grinding process. In addition, the rolling plate plays a key role in the powder processing process, it can break the caked powder entering the inside of the shell, and guide it to the grinding disc through the filter screen for further grinding. Through the design of the negative pressure machine and the sealing mechanism, the closed transmission of the feeding process is realized by using the negative pressure effect, avoiding the dust overflow when the raw materials enter the grinding device, thereby greatly improving the working environment, reducing dust pollution, and protecting the health of the operators. At the same time, the second motor equipped with the device drives the cover through the connecting plate, can effectively seal the bottom of the shell, prevent the powder from leaking, provide good airtightness and reliability for the whole grinding process.
[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.
Claims
1. A powder grinding device with negative pressure feeding function, comprising a housing, characterized in that: A support frame is installed on the outside of the housing, a sealing mechanism is provided at the bottom of the housing, and a first motor and a negative pressure pump are provided at the top of the housing; A rotating rod is provided inside the housing, and the rotating rod is connected to the output end of the first motor; A filter element is provided at the top of the inner part of the housing, and a scraper is provided on the outside of the filter element. The scraper is mounted on a rotating shaft. A stabilizing frame is provided at the bottom of the scraper to stabilize the rotating shaft. A positioning ring is provided at the bottom of the stabilizing frame. A pressing plate is provided at the bottom of the positioning ring. A filter screen is installed at the bottom of the pressing plate. A cleaning rod is installed at the bottom of the filter screen. A grinding disc is provided at the bottom of the inner part of the housing. Two grinding balls are provided inside the grinding disc. The grinding balls are fixed on the rotating shaft by a support rod. Five scrapers are provided at the bottom of the grinding disc.
2. The powder grinding device with negative pressure feeding function according to claim 1, characterized in that: The top of the housing is provided with a through hole that cooperates with the first motor and the negative pressure pump. The filter element is provided with a through hole that cooperates with the rotating rod. The output ends of the first motor and the negative pressure pump are both located inside the filter element. The scraper is L-shaped, and the inner surface of the scraper slides in contact with the outer surface of the filter element. The bottom of the scraper is fixedly engaged with the rotating shaft.
3. The powder grinding device with negative pressure feeding function according to claim 1, characterized in that: The outer ring of the stabilizing frame is fixedly installed inside the housing, and the rotating shaft passes through and is engaged in a pre-set through hole inside the stabilizing frame. A positioning ring is provided at the bottom of the stabilizing frame. The positioning ring is used to isolate the rolling plate. The rolling plate is fixedly engaged with the rotating shaft, and a through hole that cooperates with the rotating shaft is provided at the center of the rolling plate.
4. The powder grinding device with negative pressure feeding function according to claim 1, characterized in that: The filter screen is fixedly installed on the rotating shaft and rotatably connected to the rotating shaft. The filter screen is located at the bottom of the rolling plate. The center of the filter screen is provided with a through hole that cooperates with the rotating shaft. The filter screen does not have filter holes inside. The cleaning rod is installed on the rotating shaft and is provided with a through hole that cooperates with the rotating rod. The cleaning rod is located below the filter screen.
5. A powder grinding device with negative pressure feeding function according to claim 1, characterized in that: The grinding disc is arranged in a semi-circular shape and has several filter holes. Inside the grinding disc are two movable grinding balls, which are fixed to the rotating rod by a support rod. Five scrapers are provided at the bottom of the grinding disc, and the five scrapers are evenly distributed with respect to the center of the rotating shaft and installed at the bottom of the rotating shaft.
6. A powder grinding device with negative pressure feeding function according to claim 1, characterized in that: The sealing mechanism consists of a mounting block, a fixing ring, a second motor, two connecting plates, and a cover. The mounting block is fixedly installed at the bottom of the housing. The second motor is installed at the bottom of the mounting block via the fixing ring. The two connecting plates are installed opposite each other at both ends of the second motor. The left and right ends of the cover are provided with protruding shafts that cooperate with the connecting plates.