Cleaning system for silicon nitride ceramic balls

Abstract

The utility model discloses a silicon nitride ceramic ball cleaning system which comprises a cabinet body, an ultrasonic cleaning tank, a rinsing tank and a drying tank are arranged on the cabinet body, ultrasonic mechanisms are arranged at the bottom of the ultrasonic cleaning tank and the bottom of the rinsing tank, and the drying tank is connected with a hot air assembly. The bottom of the ultrasonic cleaning tank is sequentially connected with a primary filter, a secondary filter and a cleaning circulating water tank, and the cleaning circulating water tank is connected with the ultrasonic cleaning tank through a cleaning circulating pump and a cleaning water return pipe; a rinsing water outlet pipe is arranged at the bottom of the rinsing tank, the rinsing water outlet pipe is connected with a rinsing circulating water tank, and the rinsing circulating water tank is connected with the rinsing tank through a rinsing circulating pump and a rinsing water return pipe; and a control assembly is also arranged in the cabinet body. According to the ceramic ball cleaning device, the influence of variable factors on the surface quality of ceramic balls is effectively reduced, the cleaning yield and the yield of the ceramic balls are improved, and labor and production cost are effectively saved.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon nitride ceramic ball preparation, in particular to a silicon nitride ceramic ball cleaning system. Background Art

[0002] Silicon nitride is a covalently bonded compound composed of silicon and nitrogen. Silicon nitride ceramics have many advantages that metal materials and polymer materials do not have, such as high hardness, high temperature resistance, acid and alkali corrosion resistance, self-lubrication, fatigue resistance, etc. In recent years, with the development of silicon nitride ceramic technology, it is usually used as a rolling element material in the field of high-speed and high-precision bearings.

[0003] The preparation process of silicon nitride ceramic balls includes the preparation of silicon nitride powder, molding, sintering, grinding, cleaning and inspection and testing. After the grinding process is completed, the surface of the ceramic ball will carry a large amount of abrasive and tool particles, grinding media, etc. Therefore, the ceramic ball needs to be cleaned, rinsed and dried to ensure good cleanliness of the surface of the ceramic ball. At the same time, during the cleaning and rinsing process, scratches or various spots caused by collisions between ceramic balls should be avoided, and water stains should be avoided during the drying process.

[0004] Among the existing technologies, manual methods are mostly used to clean silicon nitride ceramic balls. Since it is manually controlled, there are many uncontrollable factors. Among them, since the ceramic balls collide violently with each other during the entire cleaning process, the manual drying time is short, which will cause water stains on the surface of the ceramic balls due to retention. In addition, the cleaning time is set manually, and problems such as the cleaning time being too short or too long often occur.

[0005] And because it is a manual operation, generally speaking, the cleaning process is not subdivided, and the number of single cleanings is small. There is no unified system and process standard. There are many variables and they are uncontrollable, which in turn affects the surface quality of the ceramic balls and reduces the yield of the ceramic balls. In addition, the automation level of manual operation is low, the work efficiency is not high, and the cleaning cost is high. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide a cleaning system for silicon nitride ceramic balls, which effectively reduces the influence of variable factors on the surface quality of ceramic balls, improves the cleaning output and yield of ceramic balls, and effectively saves labor costs and reduces production costs.

[0007] In order to solve the above technical problems, the utility model provides a cleaning system for silicon nitride ceramic balls, including a cabinet, on which an ultrasonic cleaning tank, a rinsing tank and a drying tank are arranged, and the bottoms of the ultrasonic cleaning tank and the rinsing tank are both provided with ultrasonic vibrators, the ultrasonic vibrators are connected to the ultrasonic generator, and the drying tank is connected to the hot air component;

[0008] A cleaning water outlet pipe is provided at the bottom of the ultrasonic cleaning tank, the cleaning water outlet pipe is connected to the primary filter, the primary filter is connected to the secondary filter through a connecting pipe, the bottom of the secondary filter is connected to a cleaning circulating water tank, the cleaning circulating water tank is connected to the ultrasonic cleaning tank through a cleaning circulating pump and a cleaning return pipe, forming a circulating water circuit for ultrasonic cleaning;

[0009] A rinsing water outlet pipe is provided at the bottom of the rinsing tank, the rinsing water outlet pipe is connected to a rinsing circulating water tank, and the rinsing circulating water tank is connected to the rinsing tank through a rinsing circulating pump and a rinsing water return pipe to form a rinsing circulating water circuit;

[0010] The cabinet is also provided with a control component, which is used to control the operation of the ultrasonic generator, the cleaning circulation pump, the rinsing circulation pump and the hot air component.

[0011] Furthermore, liquid level sensors are provided on both the primary filter and the secondary filter.

[0012] Furthermore, the primary filter includes a conical structure and a cylindrical structure connected in sequence from top to bottom, a conical isolation cover is provided at the inner bottom of the conical structure, a baffle is provided at the bottom of the conical isolation cover, the baffle divides the cylindrical structure into a U-shaped channel, a liquid inlet is provided on the conical isolation cover corresponding to one side of the baffle, and a liquid outlet is provided on the side wall of the cylindrical structure corresponding to the other side, the liquid outlet is connected to the secondary filter through a connecting pipe, and a magnetic screw cover is provided at the bottom of the cylindrical structure.

[0013] Furthermore, a fine filter and an ultrafine filter are arranged in the secondary filter from top to bottom, the fine filter has a mesh number of not less than 3000, and the ultrafine filter has a mesh number of not less than 30000.

[0014] Furthermore, a temperature measuring meter and a heating body are installed on the cleaning circulation water tank and the rinsing circulation water tank, and the temperature measuring meter controls the operation of the heating body according to the measurement result. Drain pipes are provided at the bottom of the cleaning circulation water tank and the rinsing circulation water tank, and a drain valve is provided on the drain pipe. Inclined panels are provided at the bottom of the cleaning circulation water tank and the rinsing circulation water tank, and the drain pipe is provided at the lower end of the inclined panel.

[0015] Furthermore, the hot air component includes a bottom grate arranged at the bottom of the drying tank, ventilation holes are evenly distributed on the bottom grate, a hot air zone is formed between the bottom grate and the bottom of the drying tank, and the hot air zone is connected to the hot air pump through a hot air pipe.

[0016] Furthermore, the temperature range of the liquid in the cleaning circulating water tank and the rinsing circulating water tank is 45±5°C.

[0017] Furthermore, the four corners of the bottom of the cabinet are provided with feet, and the feet are used to support the entire cabinet.

[0018] Beneficial effects of the utility model:

[0019] The ultrasonic cleaning tank and rinsing tank can ensure the temperature of the liquid by circulating the liquid supply, and cooperate with the filter to ensure the cleanliness of the liquid, thereby ensuring the quality of cleaning and the rinsing effect. The ultrasonic cleaning tank, rinsing tank and drying tank are integrated into the equipment cabinet to facilitate the transfer after the single process is completed and reduce the labor of transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the cleaning and rinsing tank of the utility model;

[0022] Figure 3 This is a schematic diagram of the filter connection structure of the utility model;

[0023] Figure 4 This is a structural schematic diagram of the isolation plug in the primary filter of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the circulating water tank of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of a drying tank of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] Reference Figures 1 to 6 As shown, an embodiment of the cleaning system of silicon nitride ceramic balls of the utility model comprises a cabinet 1, on which an ultrasonic cleaning tank 2, a rinsing tank 3 and a drying tank 4 are arranged, and an ultrasonic vibrator 5 is arranged at the bottom of the ultrasonic cleaning tank and the rinsing tank, and the ultrasonic vibrator is connected to an ultrasonic generator, and the ultrasonic vibrator cooperates with the ultrasonic generator and liquid to achieve cleaning and rinsing, and the drying tank is connected to a hot air component 7;

[0028] Specifically, a cleaning water outlet pipe is provided at the bottom of the ultrasonic cleaning tank, and the cleaning water outlet pipe is connected to the primary filter 8, and the primary filter is connected to the secondary filter 9 through a connecting pipe. The bottom of the secondary filter is connected to the cleaning circulation water tank 10, and the cleaning circulation water tank is connected to the ultrasonic cleaning tank through a cleaning circulation pump 11 and a cleaning return pipe 12, so as to form a circulating water circuit for ultrasonic cleaning. During the cleaning process, the cleaning circulation pump continuously sends the cleaning liquid in the cleaning circulation water tank into the ultrasonic cleaning tank. The ultrasonic cleaning tank is located at a high place, and the cleaning liquid flows to the primary filter and the secondary filter by its own weight, so as to achieve the filtering effect of impurities after cleaning, and finally flows back to the cleaning circulation water tank, so as to achieve effective filtration cycle and ensure the cleaning quality. Liquid level sensors 17 are provided on both the primary filter and the secondary filter.

[0029] A rinsing water outlet pipe is provided at the bottom of the rinsing tank, and the rinsing water outlet pipe is connected to the rinsing circulating water tank 13. The rinsing circulating water tank is connected to the rinsing tank through a rinsing circulating pump 14 and a rinsing return pipe 15, forming a rinsing circulating water circuit. The rinsing circulating pump continuously delivers the rinsing liquid in the rinsing circulating water tank into the rinsing tank. The rinsing tank is located at a high place, and the rinsing liquid flows back to the rinsing circulating water tank by its own weight.

[0030] A temperature measuring meter 24 and a heating body 25 are installed on the cleaning circulation water tank and the rinsing circulation water tank. The temperature measuring meter controls the operation of the heating body according to the measurement result to ensure that the temperature range of the circulating liquid is 45±5℃, which satisfies the cleaning and rinsing conditions within the appropriate temperature range and has a better effect. A drain pipe 26 is arranged at the bottom of the cleaning circulation water tank and the rinsing circulation water tank, and a drain valve is arranged on the drain pipe. An inclined panel 261 is arranged at the bottom of the cleaning circulation water tank and the rinsing circulation water tank. The drain pipe is arranged at the lower end of the inclined panel to facilitate drainage. The cleaning circulation pump and the rinsing circulation pump are located on the high end side of the inclined panel. When particulate matter enters the water tank, it can also be effectively prevented from being circulated into the water tank.

[0031] A control component 16 is also provided in the cabinet, and the control component is used to control the operation of the ultrasonic generator, the cleaning circulation pump, the rinsing circulation pump and the hot air component. The hot air component includes a bottom grate 27 arranged at the bottom of the drying tank, and ventilation holes are evenly distributed on the bottom grate. A hot air zone is formed between the bottom grate and the bottom of the drying tank. The hot air zone is connected to the hot air pump 28 through a hot air pipe. The hot air pump provides hot air for drying, and the hot air is evenly dried to the ceramic balls through the bottom grate.

[0032] The control component includes an ultrasonic generator, a liquid level device, a temperature control device, a circulation pump device, a time control device and a power supply device; the ultrasonic generator is used to adjust the ultrasonic frequency of the ultrasonic vibrator; the liquid level device displays the current liquid level measured by the liquid level gauge on the filter, and the liquid level device is connected to the alarm arranged on the cabinet, which can be an alarm light or a buzzer, etc. When the liquid level exceeds the set value, an alarm is issued, indicating that the primary filter or the secondary filter is blocked; the temperature control device is used to display and control the temperature of the circulating water in the cleaning circulation water tank and the rinsing circulation water tank; the circulation pump device is used to adjust the flow rate of the cleaning circulation pump and the rinsing circulation pump and the air volume of the hot air pump; the time control device is used to adjust the working time of the silicon nitride ceramic ball in the three processes of cleaning, rinsing and drying, and is connected to the alarm at the same time. When the work is completed, the alarm sounds an alarm; the power supply device is an ultrasonic generator, a liquid level device, a temperature control device, a circulation pump device, a time control device, a power connection of the alarm, and a main power switch is provided.

[0033] In the control component, information can be pre-entered to achieve refined and solidified process standards, as follows: The ultrasonic generator is used to adjust the ultrasonic frequency of the ultrasonic vibrator. The ultrasonic frequency is based on the diameter of the silicon nitride ceramic ball to be cleaned. The ultrasonic frequency of the ultrasonic vibrator is adjusted according to the table below.

[0034] Silicon nitride ceramic ball diameter / mm Ultrasonic frequency / kHz ≤10.0 30～40 10.0～25.4 40～50 25.4～50.8 50～60 ＞50.8 60～80

[0035] The circulation pump device is used to regulate the flow rate (number of cycles per minute) of the cleaning circulation pump and the rinsing circulation pump, as well as the air volume of the hot air pump. Depending on the diameter of the silicon nitride ceramic balls to be cleaned, the flow rate (number of cycles per minute) of the cleaning circulation pump and the rinsing circulation pump, as well as the air volume of the hot air pump are regulated according to the following table.

[0036]

[0037] The working time of the timing control device in the three processes of cleaning, rinsing and drying is adjusted according to the diameter of the silicon nitride ceramic balls to be cleaned according to the following table.

[0038]

[0039]

[0040] Based on this, when in use, the silicon nitride ceramic balls that need to be cleaned are manually poured into the ultrasonic cleaning tank, and the diameter data of the silicon nitride ceramic balls are input into the control component. The control component selects the corresponding parameters for processing according to the diameter of the ceramic balls, and then starts working. The cleaning circulation pump draws the cleaning liquid into the ultrasonic cleaning tank and continuously replenishes it. At the same time, the ultrasonic vibrator works to clean the ceramic balls. During cleaning, the impurities and cleaning liquid cleaned are returned to the cleaning circulation box after passing through the primary filter and the secondary filter. After the cleaning is completed, the alarm sounds an alarm and stops working. The cleaned ceramic balls are manually placed in the rinsing tank, and then the work is started for rinsing. After the end, the alarm sounds an alarm and stops working. The rinsed ceramic balls are manually placed in the drying tank, and the drying component blows hot air to dry the ceramic balls. After the end, the alarm sounds an alarm and stops working, completing the entire cleaning process.

[0041] In the above operation, workers only need to input the diameter of the ceramic ball. The operation is convenient and does not require manual time setting, thus avoiding errors caused by manual setting.

[0042] Reference Figure 3 As shown, the primary filter includes a conical structure and a cylindrical structure connected in sequence from top to bottom, a conical isolation cover 18 is provided at the inner bottom of the conical structure, a baffle 19 is provided at the bottom of the conical isolation cover, the baffle divides the cylindrical structure into a U-shaped channel, a liquid inlet 20 is provided on the conical isolation cover corresponding to one side of the baffle, and a liquid outlet is provided on the side wall of the cylindrical structure corresponding to the other side, the liquid outlet is connected to the secondary filter through a connecting pipe 201, and a magnetic screw cover 21 is provided at the bottom of the cylindrical structure. Through the setting of the conical isolation cover, the cleaning liquid that has passed through the filter once will enter the cylindrical structure from the liquid inlet. In addition, due to the setting of the baffle, the cleaning liquid will need to bypass the bottom of the baffle before it can be discharged from the liquid outlet, that is, it needs to pass through the magnetic screw cover. At this time, the metal particles or magnetic particles contained in the cleaning liquid will be adsorbed. A permanent magnet can be set on the magnetic screw cover. The material of the permanent magnet is aluminum-nickel-cobalt permanent magnet material, iron-chromium-cobalt permanent magnet material, permanent magnet ferrite, rare earth permanent magnet material or composite permanent magnet material. Regular maintenance only requires opening the magnetic screw cover and removing surface impurities. The operation is convenient.

[0043] A fine filter 22 and an ultrafine filter 23 are arranged from top to bottom in the secondary filter. The mesh number of the fine filter is not less than 3000 meshes, and the mesh number of the ultrafine filter is not less than 30000 meshes, so as to intercept some particles that cannot be adsorbed and ensure the cleanliness of the cleaning liquid.

[0044] The device can improve the surface quality, work efficiency and yield rate of the cleaned products, effectively save labor costs and reduce production costs, thereby increasing the economic benefits of the enterprise.

[0045] The above embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in this technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A cleaning system for silicon nitride ceramic balls, characterized in that: It comprises a cabinet, on which an ultrasonic cleaning tank, a rinsing tank and a drying tank are arranged, the bottom of the ultrasonic cleaning tank and the rinsing tank are both provided with an ultrasonic vibrator, the ultrasonic vibrator is connected to an ultrasonic generator, and the drying tank is connected to a hot air component; A cleaning water outlet pipe is provided at the bottom of the ultrasonic cleaning tank, the cleaning water outlet pipe is connected to the primary filter, the primary filter is connected to the secondary filter through a connecting pipe, the bottom of the secondary filter is connected to a cleaning circulating water tank, the cleaning circulating water tank is connected to the ultrasonic cleaning tank through a cleaning circulating pump and a cleaning return pipe, forming a circulating water circuit for ultrasonic cleaning; A rinsing water outlet pipe is provided at the bottom of the rinsing tank, the rinsing water outlet pipe is connected to a rinsing circulating water tank, and the rinsing circulating water tank is connected to the rinsing tank through a rinsing circulating pump and a rinsing water return pipe to form a rinsing circulating water circuit; The cabinet is also provided with a control component, which is used to control the operation of the ultrasonic generator, the cleaning circulation pump, the rinsing circulation pump and the hot air component.

2. The cleaning system for silicon nitride ceramic balls according to claim 1, characterized in that: Liquid level sensors are provided on both the primary filter and the secondary filter.

3. The cleaning system for silicon nitride ceramic balls according to claim 1, characterized in that: The primary filter includes a conical structure and a cylindrical structure connected in sequence from top to bottom, a conical isolation cover is provided at the inner bottom of the conical structure, a baffle is provided at the bottom of the conical isolation cover, the baffle divides the cylindrical structure into a U-shaped channel, a liquid inlet is provided on the conical isolation cover corresponding to one side of the baffle, and a liquid outlet is provided on the side wall of the cylindrical structure corresponding to the other side, the liquid outlet is connected to the secondary filter through a connecting pipe, and a magnetic screw cover is provided at the bottom of the cylindrical structure.

4. The cleaning system for silicon nitride ceramic balls according to claim 1, characterized in that: A fine filter and an ultrafine filter are arranged in the secondary filter from top to bottom, the mesh number of the fine filter is not less than 3000 meshes, and the mesh number of the ultrafine filter is not less than 30000 meshes.

5. The cleaning system for silicon nitride ceramic balls according to claim 1, characterized in that: The cleaning circulation water tank and the rinsing circulation water tank are both equipped with a temperature measuring meter and a heating body. The temperature measuring meter controls the operation of the heating body according to the measurement result. Drain pipes are provided at the bottom of the cleaning circulation water tank and the rinsing circulation water tank. A drain valve is provided on the drain pipe. Inclined panels are provided at the bottom of the cleaning circulation water tank and the rinsing circulation water tank. The drain pipe is provided at the lower end of the inclined panel.

6. The cleaning system for silicon nitride ceramic balls according to claim 1, characterized in that: The hot air component comprises a bottom grate arranged at the bottom of the drying tank, ventilation holes are evenly distributed on the bottom grate, a hot air zone is formed between the bottom grate and the bottom of the drying tank, and the hot air zone is connected to the hot air pump through a hot air pipe.

7. The cleaning system for silicon nitride ceramic balls according to claim 1, characterized in that: The temperature range of the liquid in the cleaning circulating water tank and the rinsing circulating water tank is 45±5°C.

8. The cleaning system for silicon nitride ceramic balls according to claim 1, characterized in that: The four corners of the bottom of the cabinet are provided with feet, and the feet are used to support the entire cabinet.

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