CN113681431A - Polishing agent feeding device for polishing machine - Google Patents
Polishing agent feeding device for polishing machine Download PDFInfo
- Publication number
- CN113681431A CN113681431A CN202111217982.6A CN202111217982A CN113681431A CN 113681431 A CN113681431 A CN 113681431A CN 202111217982 A CN202111217982 A CN 202111217982A CN 113681431 A CN113681431 A CN 113681431A
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- China
- Prior art keywords
- supply
- polishing
- cylinder
- adjusting
- fixedly connected
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
Abstract
The invention belongs to the technical field of polishing machine equipment, and discloses a polishing agent supply device for a polishing machine, which is technically characterized in that: the power transmission box comprises a box body, bottom half intercommunication has row material section of thick bamboo, arrange material section of thick bamboo surface and seted up the supply opening, arrange material section of thick bamboo surface mounting and supply with the piece, supply with the piece including supply tube and intercommunication piece, the supply tube is connected with control mechanism, control mechanism is including adjusting a section of thick bamboo, removal portion and transmission portion, arrange the inside intermittent type feed mechanism that is provided with of material section of thick bamboo, intermittent type feed mechanism is including the sealing ring, regulating part and drive division, mutually supports through setting up removal portion and transmission portion, and the polishing agent is supplied with at the inclination of vertical direction and then to the different positions of polishing rim plate to the adjustment supply tube that can be convenient, mutually supports through setting up regulating part, drive division and sealing ring, can carry out intermittent type supply through opening and shutting of control supply opening and then to the polishing agent.
Description
Technical Field
The invention relates to the technical field of polishing machine equipment, in particular to a polishing agent supply device for a polishing machine.
Background
Polishing refers to a processing method of reducing the roughness of the surface of a workpiece by mechanical and chemical methods, and further making the surface of the workpiece bright and flat, and polishing refers to a modification processing of the surface of the workpiece by using a polishing tool and an abrasive or other polishing media.
The polishing agent is a light yellow or yellow transparent liquid preparation, is mainly prepared by mixing abrasive micro powder and distilled water, and is rotated at a high speed and contacted with a workpiece when the workpiece is polished, so that the polishing agent is dripped to the polishing wheel disc to improve the polishing effect of the workpiece.
However, the existing polishing agent is continuously supplied when the workpiece is polished, a large amount of polishing agent is conveyed to the surface of the polishing wheel disc and cannot be effectively utilized, so that waste is generated, the existing polishing agent supply equipment cannot adjust the supply position of the polishing agent, only the single position of the polishing wheel disc can be supplied, and the polishing effect of the workpiece is affected.
Disclosure of Invention
The present invention is directed to a polishing agent supply device for a polishing machine to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the polishing agent supply device for the polishing machine comprises a box body, wherein the bottom of the box body is communicated with a discharge cylinder, the surface of the discharge cylinder is provided with a supply port, the inner top wall of the box body and the inner bottom wall of the discharge cylinder rotate together to install a rotary rod, the surface of the discharge cylinder is provided with a supply part, the supply part comprises a supply pipe and a communication part, the communication part and the supply port are fixedly connected, the supply pipe and the communication part are fixedly connected, the supply pipe is connected with a control mechanism, the control mechanism comprises a regulating cylinder, a moving part and a transmission part, the regulating cylinder and the bottom wall of the discharge cylinder are fixedly connected, the moving part is respectively connected with the regulating cylinder and the supply pipe, the moving part is used for regulating the inclination angle of the supply pipe, the transmission part is arranged inside the regulating cylinder and is connected with the moving part, an intermittent supply mechanism is arranged inside the discharge cylinder and comprises a sealing ring, The sealing ring is tightly attached to the supply opening and is in sliding connection with the inner wall of the discharge cylinder, the adjusting portion is connected with the sealing ring and used for driving the sealing ring to move in the discharge cylinder, and the driving portion is connected with the rotary rod.
As a further scheme of the invention: the moving part comprises an installation ring which is arranged on the surface of the adjusting cylinder in a sliding mode, an adjusting rod which is connected with the supply pipe in a rotating mode is arranged on the surface of the installation ring in a rotating mode, and the installation ring is connected with the transmission part.
As a further scheme of the invention: the transmission portion is including adjusting the spread groove that a section of thick bamboo lateral wall was seted up and is adjusted a section of thick bamboo inner chamber intercommunication, the inside fixed mounting of a section of thick bamboo has first motor, the output shaft fixedly connected with of first motor and the ball of adjusting a section of thick bamboo inner wall rotation and being connected, ball surface threaded connection has and adjusts a section of thick bamboo sliding connection's sliding block, sliding block fixedly connected with connecting piece, the connecting piece passes spread groove and collar fixed connection.
As a further scheme of the invention: the regulating part comprises a rotating rod which is rotatably arranged in the discharging cylinder, the end part of the rotating rod is fixedly connected with a rotating disc, the surface of the rotating disc is rotatably provided with a connecting rod which is rotatably connected with the sealing ring through a rotating shaft, and the rotating rod is connected with the driving part.
As a further scheme of the invention: the driving portion comprises a driving fluted disc fixedly mounted on the surface of the rotating rod, a driven fluted disc connected with the driving fluted disc in a meshed mode is fixedly mounted on the surface of the rotating rod, and one end of the rotating rod extends out of the box body and is connected with a second motor.
As a further scheme of the invention: the box internally mounted has mixing mechanism, mixing mechanism is including helical blade and stirring subassembly, helical blade and rotary rod fixed connection.
As a still further scheme of the invention: the stirring assembly comprises a plurality of groups of fixed rods fixedly mounted on the surfaces of the rotating rods, one end of each fixed rod, far away from the corresponding rotating rod, is fixedly connected with a stirring rod, and is fixedly connected with a plurality of groups of fixing rings between the stirring rods.
Compared with the prior art, the invention has the beneficial effects that: through the arrangement of the moving part consisting of the mounting ring and the adjusting rod and the transmission part consisting of the connecting groove, the first motor, the ball screw, the sliding block and the connecting piece which are mutually matched, the inclined angle of the supply pipe in the vertical direction can be conveniently adjusted so as to supply polishing agent to different positions of the polishing wheel disc, through the arrangement of the adjusting part consisting of the rotating rod, the rotating disc and the connecting rod, the driving part consisting of the rotating rod, the driven fluted disc and the driving fluted disc and the sealing ring are mutually matched, the intermittent supply of the polishing agent can be realized by controlling the opening and closing of the supply port, the problems that the polishing agent is continuously supplied when the workpiece is polished, a large amount of polishing agent is conveyed to the surface of the polishing wheel disc and cannot be effectively utilized, so that waste is generated are solved, and the existing polishing agent supply equipment can not adjust the supply position of the polishing agent and only can supply to a single position of the polishing wheel disc to influence the polishing effect of the workpiece.
Drawings
Fig. 1 is a schematic view of a polishing agent supplying apparatus for a polishing machine.
Fig. 2 is an enlarged schematic view of a in fig. 1.
Fig. 3 is an external view showing a supply pipe and its connection structure in a polishing agent supply apparatus for a polishing machine.
Fig. 4 is a schematic top view of an agitating member in a polishing agent supplying apparatus for a polishing machine.
Wherein: 1-box body, 2-discharge cylinder, 21-supply port, 3-supply part, 31-supply pipe, 32-communicating part, 4-control mechanism, 41-regulation cylinder, 42-moving part, 421-mounting ring, 422-regulation rod, 43-transmission part, 431-connecting groove, 432-first motor, 433-ball screw, 434-sliding block, 435-connecting piece, 5-intermittent supply mechanism, 51-sealing ring, 52-regulation part, 521-rotating rod, 522-rotating disk, 523-connecting rod, 53-driving part, 532-driven fluted disc, 533-driving fluted disc, 534-second motor, 6-mixing mechanism, 61-helical blade, 62-stirring component, 621-fixing rod, fixed rod, etc, 622-stirring rod, 623-fixing ring and 7-rotating rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 and fig. 2, a structure diagram of a polishing agent supply device for a polishing machine provided for an embodiment of the present invention includes a box 1, a discharge cylinder 2 is communicated with a bottom of the box 1, a supply port 21 is opened on a surface of the discharge cylinder 2, a rotating rod 7 is rotatably mounted on an inner top wall of the box 1 and an inner bottom wall of the discharge cylinder 2, a supply member 3 is mounted on a surface of the discharge cylinder 2, the supply member 3 includes a supply pipe 31 and a communicating member 32, the communicating member 32 is fixedly connected with the supply port 21, the supply pipe 31 is fixedly connected with the communicating member 32, the communicating member 32 may be a plastic hose, the supply pipe 31 is connected with a control mechanism 4, the control mechanism 4 includes an adjusting cylinder 41, a moving part 42 and a transmission part 43, the adjusting cylinder 41 is fixedly connected with a bottom wall of the discharge cylinder 2, the moving part 42 is respectively connected with the adjusting cylinder 41 and the supply pipe 31, the moving portion 42 is used for adjusting the inclination angle of the supply pipe 31, the transmission portion 43 is located inside the adjusting cylinder 41 and connected with the moving portion 42, the intermittent supply mechanism 5 is arranged inside the discharge cylinder 2, the intermittent supply mechanism 5 comprises a sealing ring 51, an adjusting portion 52 and a driving portion 53, the sealing ring 51 is tightly attached to the supply opening 21 and is in sliding connection with the inner wall of the discharge cylinder 2, the adjusting portion 52 is connected with the sealing ring 51 to drive the sealing ring 51 to move in the discharge cylinder 2, and the driving portion 53 is connected with the rotating rod 7.
When the polishing wheel disc is used, polishing agent is injected into the box body 1, when the polishing wheel disc polishes a workpiece, the driving portion 53 and the adjusting portion 52 are started to be matched with each other to control the sealing ring 51 to be tightly attached to the supply port 21 to move back and forth along the inner wall direction of the discharge cylinder 2, the sealing ring 51 can be intermittently controlled to open and close the supply port 21 to control the interval conveying of the polishing agent in the box body 1 to supply the polishing wheel disc to the supply pipe 31, when the supply pipe 31 supplies the polishing wheel disc, the driving portion 43 and the moving portion 42 are started to be matched with each other to conveniently adjust the inclination angle of the supply pipe 31 on a vertical plane so as to supply the polishing agent to the surface of the polishing wheel disc in an all-around mode, and the polishing effect on the workpiece is effectively improved.
As shown in fig. 1 and 3, as a preferred embodiment of the present invention, the moving part 42 includes a mounting ring 421 slidably mounted on the surface of the adjusting cylinder 41, an adjusting rod 422 rotatably connected to the supply pipe 31 is rotatably mounted on the surface of the mounting ring 421, and the mounting ring 421 is connected to the transmission part 43.
When the polishing wheel disc polishing device is used, the starting transmission part 43 controls the mounting ring 421 to move along the surface of the adjusting cylinder 41 so as to drive the adjusting rod 422 to move, and the adjusting rod 422 moves to push the supply pipe 31 to adjust the inclination angle in the vertical plane so as to perform omnibearing supply on the polishing wheel disc.
As shown in fig. 1, as a preferred embodiment of the present invention, the transmission part 43 includes a connection groove 431 formed in a side wall of the adjustment cylinder 41 and communicated with an inner cavity of the adjustment cylinder 41, a first motor 432 is fixedly installed inside the adjustment cylinder 41, a ball screw 433 rotatably connected with an inner wall of the adjustment cylinder 41 is fixedly connected to an output shaft of the first motor 432, a sliding block 434 slidably connected with the adjustment cylinder 41 is connected to a surface of the ball screw 433 through a thread, a connection member 435 is fixedly connected to the sliding block 434, and the connection member 435 passes through the connection groove 431 and is fixedly connected with the mounting ring 421.
In use, the first motor 432 is activated to rotate the ball screw 433 and further move the sliding block 434 along the surface of the ball screw 433, and the sliding block 434 moves to move the mounting ring 421 along the surface of the adjusting cylinder 41 through the connecting member 435.
As shown in fig. 2, as a preferred embodiment of the present invention, the adjusting portion 52 includes a rotating rod 521 rotatably installed inside the material discharging cylinder 2, a rotating disc 522 is fixedly connected to an end portion of the rotating rod 521, a connecting rod 523 rotatably connected to the sealing ring 51 is rotatably installed on a surface of the rotating disc 522 through a rotating shaft, and the rotating rod 521 is connected to the driving portion 53.
When the polishing device is used, the starting driving portion 53 drives the rotating rod 521 to rotate so as to drive the rotating disc 522 to rotate, the rotating disc 522 rotates to drive the sealing ring 51 to cling to the inner wall of the discharge cylinder 2 to move back and forth in a circulating mode through the connecting rod 523, and the sealing ring 51 moves back and forth so as to control the opening of the supply port 21 at equal intervals to convey polishing agent to the supply pipe 31.
As shown in fig. 2 and 3, as a preferred embodiment of the present invention, the driving portion 53 includes a driving toothed disc 533 fixedly mounted on a surface of a rotating rod 7, a driven toothed disc 532 engaged with the driving toothed disc 533 and fixedly mounted on a surface of the rotating rod 521, and one end of the rotating rod 7 extends out of the case 1 and is connected to a second motor 534.
When the rotating device is used, the second motor 534 is started to drive the rotating rod 7 to rotate so as to drive the driving fluted disc 533 to rotate, and the driving fluted disc 533 is meshed with the driven fluted disc 532 to drive the rotating rod 521 to rotate so as to drive the rotating disc 522 to rotate.
As shown in fig. 1, as a preferred embodiment of the present invention, a mixing mechanism 6 is installed inside the box body 1, the mixing mechanism 6 includes a helical blade 61 and a stirring assembly 62, and the helical blade 61 is fixedly connected to the rotating rod 7.
As shown in fig. 1 and 4, as a preferred embodiment of the present invention, the stirring assembly 62 includes a plurality of sets of fixing rods 621 fixedly mounted on the surface of the rotating rod 7, one end of the fixing rod 621 far away from the rotating rod 7 is fixedly connected with a stirring rod 622, and a plurality of sets of fixing rings 623 are fixedly connected between the stirring rods 622.
When using, rotary rod 7 rotates and drives helical blade 61 and puddler 622 at the internal rotation of box 1, and helical blade 61 and puddler 622 rotate can be effectual stir the mixture to the polishing agent solution in the box 1, effectively avoid the abrasive material crocus in the polishing agent solution to produce the sediment.
The working principle of the invention is as follows: when the polishing wheel disc polishes a workpiece, a polishing agent is injected into the box body 1, when the polishing wheel disc polishes the workpiece, the first motor 432 is started to drive the ball screw 433 to rotate so as to drive the sliding block 434 to move along the surface of the ball screw 433, the sliding block 434 moves to drive the mounting ring 421 to move along the surface of the adjusting cylinder 41 through the connecting piece 435, the mounting ring 421 moves along the surface of the adjusting cylinder 41 so as to drive the adjusting rod 422 to move, the adjusting rod 422 moves to push the supply pipe 31 to adjust the inclination angle in a vertical plane so as to carry out omnibearing supply on the polishing wheel disc, the second motor 534 is started to drive the rotating rod 7 to rotate so as to drive the driving fluted disc 533 to rotate, the driving fluted disc 533 is meshed with the driven fluted disc 532 to drive the rotating rod 521 to rotate so as to drive the rotating disc 522 to rotate, the rotating disc 521 rotates so as to drive the rotating disc 522 to rotate, and the connecting rod 523 drives the sealing ring 51 to cling to the inner wall of the discharge cylinder 2 to move back and forth in a circulating manner, the sealing ring 51 moves back and forth to control the opening of the supply port 21 at equal intervals to deliver the polishing agent to the supply pipe 31.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. A polishing agent supply device for a polishing machine comprises a box body, wherein the bottom of the box body is communicated with a discharge cylinder, the surface of the discharge cylinder is provided with a supply port, the polishing agent supply device is characterized in that the top wall in the box body and the bottom wall in the discharge cylinder are jointly and rotatably provided with a rotating rod, the surface of the discharge cylinder is provided with a supply piece, the supply piece comprises a supply pipe and a communication piece, the communication piece is fixedly connected with the supply port, the supply pipe is fixedly connected with the communication piece,
the supply pipe is connected with a control mechanism, the control mechanism comprises an adjusting cylinder, a moving part and a transmission part,
the adjusting cylinder is fixedly connected with the bottom wall of the discharging cylinder, the moving part is respectively connected with the adjusting cylinder and the supply pipe, the moving part is used for adjusting the inclination angle of the supply pipe, the transmission part is positioned in the adjusting cylinder and is connected with the moving part,
an intermittent feeding mechanism is arranged in the discharge cylinder, the intermittent feeding mechanism comprises a sealing ring, an adjusting part and a driving part,
the sealing ring is tightly attached to the supply opening and is in sliding connection with the inner wall of the discharge cylinder, the adjusting portion is connected with the sealing ring and used for driving the sealing ring to move in the discharge cylinder, and the driving portion is connected with the rotating rod.
2. The polishing slurry feeding device for polishing machine according to claim 1, wherein said moving part comprises a mounting ring slidably mounted on a surface of the adjusting cylinder, an adjusting rod rotatably mounted on a surface of the mounting ring and rotatably connected to the feeding pipe, and said mounting ring is connected to the driving part.
3. The polishing agent supply device for the polishing machine according to claim 2, wherein the transmission part comprises a connecting groove formed in a side wall of the adjusting cylinder and communicated with an inner cavity of the adjusting cylinder, a first motor is fixedly installed inside the adjusting cylinder, a ball screw rotatably connected with an inner wall of the adjusting cylinder is fixedly connected with an output shaft of the first motor, a sliding block slidably connected with the adjusting cylinder is connected to a surface of the ball screw in a threaded manner, a connecting piece is fixedly connected with the sliding block, and the connecting piece penetrates through the connecting groove and is fixedly connected with the mounting ring.
4. The polishing agent supply device according to claim 1, wherein the adjusting portion comprises a rotating rod rotatably mounted inside the discharge tube, a rotating disc is fixedly connected to an end portion of the rotating rod, a connecting rod rotatably connected to the sealing ring is rotatably mounted on a surface of the rotating disc through a rotating shaft, and the rotating rod is connected to the driving portion.
5. The polishing slurry supply apparatus for polishing machines according to claim 4, wherein the driving part comprises a driving toothed disc fixedly mounted on a surface of a rotary rod, a driven toothed disc meshed with the driving toothed disc is fixedly mounted on the surface of the rotary rod, and one end of the rotary rod extends out of the box body and is connected with a second motor.
6. The polishing agent feeding device for polishing machines according to claim 1, wherein a mixing mechanism is installed inside the box, the mixing mechanism comprises a helical blade and a stirring component, and the helical blade is fixedly connected with a rotating rod.
7. The polishing agent supply device as recited in claim 6, wherein the stirring assembly comprises a plurality of sets of fixed rods fixedly mounted on the surface of the rotating rod, the ends of the fixed rods remote from the rotating rod are fixedly connected with the stirring rods, and a plurality of sets of fixed rings are fixedly connected between the stirring rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111217982.6A CN113681431B (en) | 2021-10-20 | 2021-10-20 | Polishing agent feeding device for polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111217982.6A CN113681431B (en) | 2021-10-20 | 2021-10-20 | Polishing agent feeding device for polishing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113681431A true CN113681431A (en) | 2021-11-23 |
| CN113681431B CN113681431B (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111217982.6A Active CN113681431B (en) | 2021-10-20 | 2021-10-20 | Polishing agent feeding device for polishing machine |
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| Country | Link |
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| CN (1) | CN113681431B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000185927A (en) * | 1998-12-23 | 2000-07-04 | Hoya Corp | Polishing method and apparatus therefor, and glass substrate for magnetic recording medium, and magnetic recording medium |
| CN102601739A (en) * | 2011-05-13 | 2012-07-25 | 上海华力微电子有限公司 | Device and method for classifying and recovering waste grinding fluid and deionized water |
| CN207155573U (en) * | 2017-07-04 | 2018-03-30 | 青岛嘉星晶电科技股份有限公司 | Grind alloy melt stirring device |
| CN208895895U (en) * | 2018-10-24 | 2019-05-24 | 爱利彼半导体设备(中国)有限公司 | A kind of chemical-mechanical polisher polishing liquid supplying device |
| CN211332778U (en) * | 2019-10-30 | 2020-08-25 | 宁波日晟新材料有限公司 | A feeding device for chemical machinery burnishing machine polishing solution |
| CN212122669U (en) * | 2019-11-26 | 2020-12-11 | 苏州驰夫电子科技有限公司 | Floor polishing machine for building engineering |
| CN113263359A (en) * | 2021-06-22 | 2021-08-17 | 杭州精瑞科技有限公司 | A novel abrasive material mixes device for ultrasonic polishing |
-
2021
- 2021-10-20 CN CN202111217982.6A patent/CN113681431B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000185927A (en) * | 1998-12-23 | 2000-07-04 | Hoya Corp | Polishing method and apparatus therefor, and glass substrate for magnetic recording medium, and magnetic recording medium |
| CN102601739A (en) * | 2011-05-13 | 2012-07-25 | 上海华力微电子有限公司 | Device and method for classifying and recovering waste grinding fluid and deionized water |
| CN207155573U (en) * | 2017-07-04 | 2018-03-30 | 青岛嘉星晶电科技股份有限公司 | Grind alloy melt stirring device |
| CN208895895U (en) * | 2018-10-24 | 2019-05-24 | 爱利彼半导体设备(中国)有限公司 | A kind of chemical-mechanical polisher polishing liquid supplying device |
| CN211332778U (en) * | 2019-10-30 | 2020-08-25 | 宁波日晟新材料有限公司 | A feeding device for chemical machinery burnishing machine polishing solution |
| CN212122669U (en) * | 2019-11-26 | 2020-12-11 | 苏州驰夫电子科技有限公司 | Floor polishing machine for building engineering |
| CN113263359A (en) * | 2021-06-22 | 2021-08-17 | 杭州精瑞科技有限公司 | A novel abrasive material mixes device for ultrasonic polishing |
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| CN113681431B (en) | 2022-03-04 |
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