CN111531474A - Surface cleaning device for lining plate of stirring machine - Google Patents
Surface cleaning device for lining plate of stirring machine Download PDFInfo
- Publication number
- CN111531474A CN111531474A CN202010242320.3A CN202010242320A CN111531474A CN 111531474 A CN111531474 A CN 111531474A CN 202010242320 A CN202010242320 A CN 202010242320A CN 111531474 A CN111531474 A CN 111531474A
- Authority
- CN
- China
- Prior art keywords
- rotating
- groove block
- fixedly connected
- sand
- cleaning
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
- B24C3/20—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by turntables
- B24C3/22—Apparatus using nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/006—Treatment of used abrasive material
Abstract
The invention discloses a surface cleaning device for a lining plate of a stirrer, which comprises a rack, wherein a cleaning groove block is fixedly connected to the upper surface of the rack, a rotating shaft frame plate is fixedly connected to the upper surface of the cleaning groove block, the opposite surface of the rotating shaft frame plate is rotatably connected with the same rotating shaft, and the rotating shaft extends to the front surface of the rotating shaft frame plate and is fixedly connected with a driving motor. According to the surface cleaning device for the lining plate of the stirring machine, the driving motor arranged on the front face of the rotating shaft frame plate drives the rotating wheel disc to rotate anticlockwise, the lining plate of the stirring machine is fixed in the material containing frame, the rotating motor is adopted to drive the rotating groove block containing a large amount of fine grinding sand to rotate at a high speed, and the fine grinding sand in the material containing frame erodes the surface of the lining plate of the stirring machine positioned in the material containing frame, so that casting sand adhered to the surface of the lining plate of the stirring machine poured and molded by sand mold is convenient to fall off, and the surface cleaning degree can be controlled according to the grinding time and the rotating speed of the rotating wheel disc.
Description
Technical Field
The invention relates to the technical field of casting production equipment, in particular to a surface cleaning device for a lining plate of a stirrer.
Background
The stirrer is a machine used in construction sites, is mainly used for stirring cement and gravel, and can be used for more thoroughly mixing cement and gravel, and meets the building construction standard. Most of the existing mixers are cylindrical, stirring blades are arranged inside the existing mixers and used for stirring materials, and the inner wall of a cylinder is provided with a lining plate to protect the wall of the cylinder and prevent the cylinder from receiving a large amount of friction, so that the service life of the existing mixers is prolonged.
Mixer welt needs often to be changed as a consumer, and its material needs have high wear resistant characteristic simultaneously, and consequently the mixer welt among the reality is the foundry goods of sand mould casting forming mostly, and the benefit of sand mould casting lies in the cost, but its surface often can be stained with bellied gravel, when selling out of the market, needs carry out the clearance of surperficial certain degree, makes the gravel on its surface clear up.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a surface cleaning device for a lining plate of a stirrer.
In order to achieve the purpose, the invention adopts the following technical scheme:
a surface cleaning device for a lining plate of a stirrer comprises a rack body, wherein a cleaning groove block is fixedly connected to the upper surface of the rack body, a rotating shaft frame plate is fixedly connected to the upper surface of the cleaning groove block, the opposite surface of the rotating shaft frame plate is rotatably connected with the same rotating shaft, the rotating shaft extends to the front surface of the rotating shaft frame plate and is fixedly connected with a driving motor, a rotating wheel disc is fixedly connected to the surface of the rotating shaft, a plurality of material containing frames are fixedly connected to the surface of the rotating wheel disc, a rotating motor is fixedly connected to the middle of the rack body, an output shaft of the rotating motor extends to the inner part of the cleaning groove block and is fixedly connected with the rotating groove block, a plurality of sand discharge holes are formed in the outer surface of the rotating groove block, a rotating sealing ring is arranged between the rotating groove block and the cleaning groove block, and a sand discharge pipe is fixedly connected to the, the bottom of sand discharge pipe is provided with the sand filtering component, the right flank fixedly connected with mount of clearance groove piece, the side of mount is provided with the sand removal subassembly.
Preferably, the cleaning groove block and the rotating groove block are both of a circular upper opening groove-shaped structure in overlooking shape, and both sides of the cleaning groove block are respectively connected with a liquid inlet pipe and a liquid outlet pipe communicated with the inside of the cleaning groove block.
Preferably, a sealing bearing is arranged at the joint of the output shaft of the driving motor and the cleaning groove block, a plurality of ball grooves are arranged on the lower surface of the rotating groove block, and balls are embedded in the ball grooves.
Preferably, the material containing frame is of a rectangular three-dimensional structure, six surfaces of the material containing frame are made of steel wire filter screens, a material frame cover which can be opened and closed through hinge rotation is arranged on the upper portion of the material containing frame, and a locking device is arranged between the material frame cover and the material containing frame and is of a conventional lock catch type structure.
Preferably, the sand filtering assembly comprises a filtering cabinet fixedly connected to the side face of the support leg of the rack, the inside of the filtering cabinet is provided with an iron scrap collecting drawer and a recycling drawer for recycling cleaning sand respectively from top to bottom, the iron scrap collecting drawer is of an upper and lower through hole type structure, and a plurality of magnet rods for adsorbing iron scraps are fixedly connected to the inside of the iron scrap collecting drawer.
Preferably, the sand removal assembly comprises a cleaning nozzle fixedly connected to the left side of the fixing frame, and an air inlet pipe of the cleaning nozzle is communicated with the output end of the air compressor through a concentration pipe.
The invention has the following beneficial effects:
1. according to the surface cleaning device for the lining plate of the stirring machine, the driving motor arranged on the front face of the rotating shaft frame plate drives the rotating wheel disc to rotate anticlockwise, the lining plate of the stirring machine is fixed in the material containing frame, the rotating motor is adopted to drive the rotating groove block containing a large amount of fine grinding sand to rotate at a high speed, and the fine grinding sand in the material containing frame erodes the surface of the lining plate of the stirring machine positioned in the material containing frame, so that casting sand adhered to the surface of the lining plate of the stirring machine poured and molded by sand mold is convenient to fall off, and the surface cleaning degree can be controlled according to the grinding time and the rotating speed of the rotating wheel disc.
2. According to the surface cleaning device for the lining plate of the stirring machine, the grinding sand is prevented from entering the bottom of the rotating groove block by arranging the rotating sealing ring between the cleaning groove block and the rotating groove block, the excessive centrifugal sand generated by rotation enters the inside of the filtering cabinet by arranging the sand discharge hole, the sand discharge pipe and the filtering cabinet, the scrap iron is adsorbed by magnetic force by arranging the magnet rod inside the scrap iron collecting drawer, and the grinding sand without the scrap iron is convenient to collect and reuse by arranging the recovery drawer, so that the effects of energy conservation, sand-iron separation and scrap iron recovery and reuse are achieved.
3. According to the surface cleaning device for the lining plate of the stirring machine, the material containing frame drives the lining plate of the stirring machine to rub with the fine polishing sand by adopting the rotating wheel disc which rotates circularly, and the surface of the polished lining plate is blown by the cleaning nozzle, so that the polishing sand on the surface of the polished lining plate is cleaned, the surface of the polished lining plate is convenient to clean and polish, and manual cleaning is not needed.
Drawings
FIG. 1 is a schematic front view of a cleaning device for the surface of a lining plate of a mixer according to the present invention;
FIG. 2 is a schematic front sectional view of a surface cleaning apparatus for a lining plate of a mixer according to the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2 at C;
FIG. 4 is an enlarged view of the structure at A in FIG. 2;
FIG. 5 is an enlarged view of the structure at B in FIG. 2;
FIG. 6 is an enlarged schematic view of a filter cabinet of the surface cleaning device for a lining plate of a stirrer according to the present invention;
FIG. 7 is a schematic side sectional view of a filter cabinet of the surface cleaning device for a lining plate of a blender according to the present invention.
In the figure: 1 rack, 2 clearance groove piece, 3 pivot frame plates, 4 axis of rotation, 5 driving motor, 6 carousel, 7 flourishing material frames, 8 rotating electrical machines, 9 rotation groove pieces, 10 sand discharge holes, 11 rotation sealing rings, 12 sand discharge pipes, 13 mounts, 14 feed liquor pipes, 15 drain pipes, 16 ball grooves, 17 balls, 18 material frame covers, 19 filter cabinets, 20 iron fillings collection drawers, 21 recovery drawers, 22 magnet bars, 23 clearance shower nozzles, 24 centralized pipes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-4, a mixer lining plate surface cleaning device, including rack 1, rack 1's last fixed surface is connected with clearance groove block 2, the last fixed surface of clearance groove block 2 is connected with pivot frame plate 3, the opposite face of pivot frame plate 3 rotates and is connected with same axis of rotation 4, axis of rotation 4 extends to pivot frame plate 3's front fixedly connected with driving motor 5, axis of rotation 4's fixed surface is connected with rotary wheel disc 6, rotary wheel disc 6's fixed surface is connected with a plurality of flourishing material frames 7, flourishing material frame 7 is rectangle spatial structure, and six faces are the filter screen material, and the upper portion of flourishing material frame 7 is provided with rotates the material frame lid 18 that opens and shuts through the hinge, be provided with locking device between material frame lid 18 and the flourishing material frame 7, locking device is conventional hasp formula structure.
The middle part fixedly connected with rotating electrical machines 8 of rack 1, the inside fixedly connected with rotation groove piece 9 that the output shaft of rotating electrical machines 8 extends to clearance groove piece 2, clearance groove piece 2 and rotation groove piece 9 are overlook the molding and are round upper shed recess column structure, the both sides of clearance groove piece 2 are connected with feed liquor pipe 14 and drain pipe 15 rather than inside intercommunication respectively, driving motor 5's output shaft is provided with sealed bearing with clearance groove piece 2's junction, the lower surface of rotating groove piece 9 is provided with a plurality of ball grooves 16, the inside of ball groove 16 is inlayed and is equipped with ball 17.
It rotates sealing washer 11 to rotate to be provided with between groove block 9 and the clearance groove block 2, clearance groove block 2's right flank fixedly connected with mount 13, mount 13's side is provided with the sand removal subassembly, the sand removal subassembly includes fixed connection at the left clearance shower nozzle 23 of mount 13, the intake pipe of clearance shower nozzle 23 is linked together through centralized pipe 24 and air compressor's output, make flourishing material frame 7 drive mixer welt and the fine sand of polishing rub through adopting circulation pivoted rotation rim plate 6, blow the welt surface after polishing through setting up clearance shower nozzle 13, make its surperficial sand of polishing by the sanitization, thereby make its surface be convenient for the clearance beat, the dull polish need not manual clearance.
In this embodiment, through setting up the positive driving motor 5 of pivot frame plate 3, 6 anticlockwise rotations of drive rotary wheel dish, contain material frame 7 through setting up, make the mixer welt fixed inside it, adopt rotating electrical machines 8 to drive the high-speed rotation of the rotation groove piece 9 that contains a large amount of fine sand of polishing, make its inside fine sand of polishing erode and be located the inside mixer welt surface of material frame 7 greatly, thereby make the foundry sand of the fashioned mixer welt surface adhesion of sand casting be convenient for drop, simultaneously can also be according to the time of polishing and the slew velocity of rotary wheel dish 6, control surface cleaning degree.
Example 2
Referring to fig. 5 to 7, the difference from embodiment 1 is that a plurality of sand discharge holes 10 are formed in the outer surface of the rotary groove block 9, a sand discharge pipe 12 is fixedly connected to the outer surface of the cleaning groove block 2, a sand filter assembly is arranged at the bottom end of the sand discharge pipe 12, the sand filter assembly comprises a filter cabinet 19 fixedly connected to the side surface of the support leg of the rack 1, an iron scrap collecting drawer 20 and a recovery drawer 21 for recovering the cleaning sand are respectively slidably connected to the inside of the filter cabinet 19 from top to bottom, the iron scrap collecting drawer 20 is of an upper and lower through hole type structure, and a plurality of magnet rods 22 for adsorbing iron scraps are fixedly connected to the inside of the iron scrap collecting drawer.
Combine embodiment 1 this embodiment, through setting up rotation sealing washer 11 between clearance groove piece 2 and the rotation groove piece 9, prevent that the sand of polishing from getting into the bottom of rotating groove piece 9, through setting up sand discharge hole 10, sand discharge pipe 12 and filtering cabinet 19, make rotatory surplus centrifugal sand that produces get into inside filtering cabinet 19, collect the magnet stick 22 of drawer 20 inside through setting up iron fillings and make iron fillings adsorbed by magnetic force, retrieve drawer 21 through setting up, the sand of polishing that does not contain iron fillings is convenient for collect, reuse, thereby energy-conservation has, sand-iron separation and iron fillings effect of retrieving and reusing.
The working principle is as follows: when the cleaning device provided by the invention is used for cleaning the surface of the lining plate of the stirring machine, firstly, the material containing frame 7 is opened to enable the lining plate to be placed in the material containing frame 7, the material frame cover 18 is fixed through the locking device, the lining plate cannot fall out in the material containing frame 7, then the driving motor 5 is controlled to rotate slowly, the material containing frames 7 rotate slowly, a large amount of grinding sand is filled in the rotating groove block 9, the rotating motor 8 is started to drive the rotating groove block 9 to rotate, the grinding sand flows at a high speed, the surface of the lining plate in the material containing frame 7 is washed and rubbed, in the cleaning process, the generated redundant grinding sand enters the filter cabinet 19 through the sand discharge hole 10 and the sand discharge pipe 12 under the centrifugal force, the iron filings in the grinding sand are collected through the magnet rod 22 in the iron filings collecting drawer 20, and the redundant grinding sand is collected through the recovery drawer 21, scrap iron is collected and is convenient for melting casting again, and the sand of polishing is collected and is convenient for reuse, and the device except falling the welt surface and clearing up, can also be through adjusting driving motor 5's rotational speed to and the time that the quicksand erodees, the volume of adjusting and control polishing adopts clearance shower nozzle 23 to rush the high-pressure draught that air compressor produced to the inside of expecting frame 7, carries out pneumatic clearance to the welt surface of inside.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a mixer welt surface cleaning device, includes rack (1), its characterized in that: the upper surface of the machine rack (1) is fixedly connected with a cleaning groove block (2), the upper surface of the cleaning groove block (2) is fixedly connected with a rotating shaft frame plate (3), the opposite surface of the rotating shaft frame plate (3) is rotatably connected with the same rotating shaft (4), the rotating shaft (4) extends to the front fixedly connected with a driving motor (5) of the rotating shaft frame plate (3), the surface of the rotating shaft (4) is fixedly connected with a rotating wheel disc (6), the surface of the rotating wheel disc (6) is fixedly connected with a plurality of material containing frames (7), the middle part of the machine rack (1) is fixedly connected with a rotating motor (8), the output shaft of the rotating motor (8) extends to the inner fixedly connected with a rotating groove block (9) of the cleaning groove block (2), the outer surface of the rotating groove block (9) is provided with a plurality of sand discharge holes (10), a rotating seal ring (11) is arranged between the rotating groove block (9) and the cleaning groove block (2), the outer fixed surface of clearance groove piece (2) is connected with sand discharge pipe (12), the bottom of sand discharge pipe (12) is provided with the sand screen subassembly, the right flank fixedly connected with mount (13) of clearance groove piece (2), the side of mount (13) is provided with the sand removal subassembly.
2. The mixer liner surface cleaning apparatus of claim 1, further comprising: the cleaning groove block (2) and the rotating groove block (9) are of circular upper opening groove-shaped structures in overlooking modeling, and both sides of the cleaning groove block (2) are respectively connected with a liquid inlet pipe (14) and a liquid outlet pipe (15) which are communicated with the inside of the cleaning groove block.
3. The mixer liner surface cleaning apparatus of claim 1, further comprising: the joint of the output shaft of the driving motor (5) and the cleaning groove block (2) is provided with a sealing bearing, the lower surface of the rotating groove block (9) is provided with a plurality of ball grooves (16), and balls (17) are embedded in the ball grooves (16).
4. The mixer liner surface cleaning apparatus of claim 1, further comprising: contain material frame (7) and be rectangle spatial structure, and six be the wire filter screen material, and the upper portion of containing material frame (7) is provided with material frame lid (18) that rotate through the hinge and open and shut, be provided with locking device between material frame lid (18) and the material frame (7) of containing, locking device is conventional hasp formula structure.
5. The mixer liner surface cleaning apparatus of claim 1, further comprising: the sand filtering component comprises a filtering cabinet (19) fixedly connected to the side face of a supporting leg of the rack (1), the inside of the filtering cabinet (19) is provided with an iron scrap collecting drawer (20) and a recycling drawer (21) for recycling cleaning sand respectively from top to bottom, the iron scrap collecting drawer (20) is of an upper and lower through hole type structure, and a plurality of magnet rods (22) fixedly connected with the inside are used for adsorbing iron scraps.
6. The mixer liner surface cleaning apparatus of claim 1, further comprising: the sand removal assembly comprises a cleaning spray head (23) fixedly connected to the left side of the fixing frame (13), and an air inlet pipe of the cleaning spray head (23) is communicated with the output end of the air compressor through a centralized pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242320.3A CN111531474A (en) | 2020-03-31 | 2020-03-31 | Surface cleaning device for lining plate of stirring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242320.3A CN111531474A (en) | 2020-03-31 | 2020-03-31 | Surface cleaning device for lining plate of stirring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111531474A true CN111531474A (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010242320.3A Pending CN111531474A (en) | 2020-03-31 | 2020-03-31 | Surface cleaning device for lining plate of stirring machine |
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| CN (1) | CN111531474A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871454A (en) * | 2023-09-07 | 2023-10-13 | 山西鸿琛锐机械制造有限公司 | Recovery processing device of molding sand |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2915606A1 (en) * | 1979-04-18 | 1980-10-23 | Herbert Sonnenberg | Fettling noble metal castings, esp. jewellery or dental prostheses - where gypsum cluster moulds are clamped on drum rotated in liq. contg. abrasive, esp. glass beads |
| SU1414587A1 (en) * | 1986-07-11 | 1988-08-07 | Н.Е.Вакатов и Е.Н.Вакатова | Arrangement for abrasive machining of surfaces of articles |
| SU1495096A1 (en) * | 1987-11-04 | 1989-07-23 | Омский Филиал Центрального Опытно-Конструкторского Проектно-Технологического Бюро Всесоюзного Научно-Производственного Объединения "Ремдеталь" | Apparatus for abrasion-jet working of articles |
| CN2313664Y (en) * | 1997-11-15 | 1999-04-14 | 成洪臣 | Vertical centrifugal shaping apparatus |
| CN204525196U (en) * | 2015-02-03 | 2015-08-05 | 浙江工业大学 | Based on the multiple operation automation polissoir of gas-liquid-solid three phase flow |
| CN107965989A (en) * | 2017-11-23 | 2018-04-27 | 梧州市雅正农业科技有限公司 | A kind of tealeaves cleaning drying device |
| CN108436790A (en) * | 2018-05-31 | 2018-08-24 | 巨力索具股份有限公司 | A kind of round-link chain sand-blasting machine |
| CN109746427A (en) * | 2019-03-14 | 2019-05-14 | 周焱春 | A kind of lost foam casting apparatus |
| CN110624891A (en) * | 2019-10-29 | 2019-12-31 | 江门市新会区顺业电镀有限公司 | Cleaning device for electroplating processing of hardware products |
-
2020
- 2020-03-31 CN CN202010242320.3A patent/CN111531474A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2915606A1 (en) * | 1979-04-18 | 1980-10-23 | Herbert Sonnenberg | Fettling noble metal castings, esp. jewellery or dental prostheses - where gypsum cluster moulds are clamped on drum rotated in liq. contg. abrasive, esp. glass beads |
| SU1414587A1 (en) * | 1986-07-11 | 1988-08-07 | Н.Е.Вакатов и Е.Н.Вакатова | Arrangement for abrasive machining of surfaces of articles |
| SU1495096A1 (en) * | 1987-11-04 | 1989-07-23 | Омский Филиал Центрального Опытно-Конструкторского Проектно-Технологического Бюро Всесоюзного Научно-Производственного Объединения "Ремдеталь" | Apparatus for abrasion-jet working of articles |
| CN2313664Y (en) * | 1997-11-15 | 1999-04-14 | 成洪臣 | Vertical centrifugal shaping apparatus |
| CN204525196U (en) * | 2015-02-03 | 2015-08-05 | 浙江工业大学 | Based on the multiple operation automation polissoir of gas-liquid-solid three phase flow |
| CN107965989A (en) * | 2017-11-23 | 2018-04-27 | 梧州市雅正农业科技有限公司 | A kind of tealeaves cleaning drying device |
| CN108436790A (en) * | 2018-05-31 | 2018-08-24 | 巨力索具股份有限公司 | A kind of round-link chain sand-blasting machine |
| CN109746427A (en) * | 2019-03-14 | 2019-05-14 | 周焱春 | A kind of lost foam casting apparatus |
| CN110624891A (en) * | 2019-10-29 | 2019-12-31 | 江门市新会区顺业电镀有限公司 | Cleaning device for electroplating processing of hardware products |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116871454A (en) * | 2023-09-07 | 2023-10-13 | 山西鸿琛锐机械制造有限公司 | Recovery processing device of molding sand |
| CN116871454B (en) * | 2023-09-07 | 2023-11-07 | 山西鸿琛锐机械制造有限公司 | Recovery processing method of molding sand |
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Application publication date: 20200814 |
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| RJ01 | Rejection of invention patent application after publication |