CN109129205B - Sand blasting system for hollow long rod-shaped part - Google Patents
Sand blasting system for hollow long rod-shaped part Download PDFInfo
- Publication number
- CN109129205B CN109129205B CN201811125136.XA CN201811125136A CN109129205B CN 109129205 B CN109129205 B CN 109129205B CN 201811125136 A CN201811125136 A CN 201811125136A CN 109129205 B CN109129205 B CN 109129205B
- Authority
- CN
- China
- Prior art keywords
- sand blasting
- bin
- conveying
- spray pipes
- long rod
- Prior art date
- 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.)
- Active
Links
- 238000005488 sandblasting Methods 0.000 title claims abstract description 50
- 239000007921 spray Substances 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 abstract description 17
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
- B24C3/04—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other stationary
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Spray Control Apparatus (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention provides a sand blasting treatment system for hollow long rod-shaped parts, which comprises a frame, a sand blasting bin and a heating bin, wherein the frame is sequentially provided with an input section, a sand blasting bin and an output section from front to back, conveying devices are arranged in the input section, the output section and the sand blasting bin, radial spray pipes and axial spray pipes are arranged in the sand blasting bin, the radial spray pipes are parallel to the conveying direction of the conveying devices, sliding rails are arranged on the inner walls of the front side and the rear side of the sand blasting bin, the axial spray pipes are arranged on the sliding rails and can reciprocate along the vertical direction, the heating bin is respectively communicated with an input spraying liquid, the radial spray pipes and the axial spray pipes, and a plurality of spray guns are arranged on the radial spray pipes and the axial spray pipes. By adopting the technical scheme of the invention, the hollow long rod-shaped part is sent into the sand blasting bin through the conveying device, and the spraying liquid is respectively sprayed into the outer peripheral surface of the workpiece and the middle through hole through the radial spraying gun and the axial spraying gun after passing through the heating bin, so that sand blasting is more uniform and comprehensive, the surface roughness of the part is reduced, and the sand blasting quality is improved.
Description
Technical Field
The invention belongs to the technical field of machining auxiliary processes, and particularly relates to a sand blasting system for hollow long rod-shaped parts.
Background
In mining engineering equipment, the processing of a long drill rod with the length-diameter ratio of more than 10 times is very important, the processing quality directly influences the end use performance requirement of the drill rod, the long drill rod is stressed by manufacturers in the past, the surface of the long drill rod is required to be treated in order to improve the use performance of the parts, the solid long drill rod is generally only required to be subjected to surface treatment on the outer peripheral surface, the hollow long drill rod is difficult to be subjected to surface treatment on the inner middle through hole, the surface of the hollow long drill rod is often ignored in the prior art, the product quality of enterprises is not effectively ensured, the market competitiveness of products produced by the enterprises is not high, and the economic benefit of the enterprises is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sand blasting system for hollow long rod-shaped parts.
The invention is realized by the following technical scheme.
The invention provides a sand blasting system for hollow long rod-shaped parts, which comprises a frame, a sand blasting bin and a heating bin, wherein the sand blasting bin is arranged in the middle of the frame, the front side and the rear side of the frame are respectively used as an input section and an output section, conveying devices are arranged in the input section, the output section and the sand blasting bin, radial spray pipes and axial spray pipes are arranged in the sand blasting bin, the radial spray pipes are arranged at the top part in the sand blasting bin in parallel to the conveying direction of the conveying devices, sliding rails are arranged on the inner walls of the front side and the rear side of the sand blasting bin, the axial spray pipes are arranged on the sliding rails and can reciprocate along the vertical direction, the heating bin is respectively communicated with an input spraying liquid, the radial spray pipes and the axial spray pipes, and a plurality of spray guns are arranged on the radial spray pipes and the axial spray pipes.
The sand blasting bin bottom is also provided with a collecting bin, and the collecting bin bottom is connected with a liquid discharge pipe.
The collecting bin is also communicated with the heating bin through a return pipe.
The heating bin is fixedly arranged at the top of the sand blasting bin.
The axial spray pipe is communicated with the heating bin through a corrugated hose.
The sand blasting system for the hollow long rod-shaped part further comprises a buffer storage rack which is arranged on the outer side of the input section in parallel, wherein the top surface of the buffer storage rack is used as a storage surface which is obliquely arranged relative to the horizontal plane, and the lower side of the storage surface is close to the input section.
The storage surface has an inclination angle of 20 DEG to 45 DEG with respect to the horizontal plane.
The lower side of the storage surface is also provided with a thumb wheel.
The conveying device comprises a pair of conveying shafts which are arranged on the input section in parallel, conveying wheels are arranged at corresponding positions on each conveying shaft, knurls inclined to the central axis of each conveying wheel are arranged on the outer peripheral surface of each conveying wheel, the distance between the outer peripheral surfaces of two conveying wheels which are arranged randomly opposite to each other is smaller than the outer diameter of a hollow long rod-shaped part, the projection of the knurls on the horizontal plane of the two conveying wheels which are arranged randomly opposite to each other is in a splayed shape, and the conveying direction of the hollow long rod-shaped part is from the lower end of the splayed knurls to the upper end of the splayed knurls.
The conveying device further comprises a motor, a driving wheel, driven wheels and a transmission belt, the motor is arranged in the frame, the driving wheel is connected with an output shaft of the motor, the driven wheels are fixedly connected to the tail end of one conveying shaft, and the driving wheel and the driven wheels are in meshed transmission through the transmission belt.
The invention has the beneficial effects that: according to the technical scheme, the hollow long rod-shaped part is sent into the sand blasting bin through the frame input section, the spraying liquid is sent into the heating bin, then the axial spraying gun falls to the outer sides of two ends of the hollow long rod-shaped part along the sliding rail, the outer peripheral surface and the middle through hole of the workpiece are respectively sprayed with sand through the radial spraying gun and the axial spraying gun, when the inner and outer surfaces of the workpiece are flushed with the high-temperature spraying liquid, on one hand, the prismatic part on the surface is flushed and flattened through pressure, on the other hand, impurities attached to the surface of the workpiece are melted and taken away through heat conduction, so that the treatment effect is improved, the inner and outer surfaces of the hollow long rod-shaped part are high in flatness, the surface roughness is low, the product quality is improved, and in addition, the hollow long rod-shaped part is conveyed forwards along the central axis direction of the conveying wheel through rotation of the conveying wheel which is opposite to each other, compared with a traditional conveying mode, the conveying speed is slowed down, and therefore the outer peripheral surface of the hollow long rod-shaped part is prevented from being missed in the sand blasting treatment process, and the outer surface of the hollow long rod-shaped part is more uniform.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
fig. 3 is a schematic installation of the transfer wheel of the present invention.
In the figure: the device comprises a 1-frame, a 2-sand blasting bin, a 3-heating bin, a 4-conveying device, a 5-radial spray pipe, a 6-axial spray pipe, a 7-slide rail, an 8-spray gun, a 9-collecting bin, a 10-liquid discharge pipe, an 11-return pipe, a 12-buffer frame, a 13-deflector wheel, a 14-conveying shaft, a 15-conveying wheel, a 16-motor, a 17-driving wheel, an 18-driven wheel, a 19-driving belt, a 101-input section, a 102-output section, a 1201-storage surface and 1501-knurling.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
As shown in fig. 1, fig. 2 and fig. 3, the invention provides a sand blasting treatment system for hollow long rod-shaped parts, which comprises a frame 1, a sand blasting bin 2 and a heating bin 3, wherein the sand blasting bin 2 is arranged in the middle of the frame 1, the front side and the rear side of the frame 1 are respectively used as an input section 101 and an output section 102, conveying devices 4 are respectively arranged in the input section 101, the output section 102 and the sand blasting bin 2, radial spray pipes 5 and axial spray pipes 6 are arranged in the sand blasting bin 2, the radial spray pipes 5 are arranged at the top part in the sand blasting bin 2 in parallel to the conveying direction of the conveying devices 4, sliding rails 7 are arranged on the inner walls of the front side and the rear side of the sand blasting bin 2, the axial spray pipes 6 are arranged on the sliding rails 7 and can reciprocate along the vertical direction, the heating bin 3 is respectively communicated with an input spraying liquid, the radial spray pipes 5 and the axial spray pipes 6, and a plurality of spray guns 8 are respectively arranged on the radial spray pipes 5 and the axial spray pipes 6.
According to the technical scheme, the hollow long rod-shaped part is sent into the sand blasting bin through the frame input section, the spraying liquid is sent into the heating bin, then the axial spraying gun falls to the outer sides of two ends of the hollow long rod-shaped part along the sliding rail, the outer peripheral surface and the middle through hole of the workpiece are respectively sprayed with sand through the radial spraying gun and the axial spraying gun, when the inner and outer surfaces of the workpiece are flushed with the high-temperature spraying liquid, on one hand, the prismatic part on the surface is flushed and flattened through pressure, on the other hand, impurities attached to the surface of the workpiece are melted and taken away through heat conduction, so that the treatment effect is improved, the inner and outer surfaces of the hollow long rod-shaped part are high in flatness, the surface roughness is low, the product quality is improved, and in addition, the hollow long rod-shaped part is conveyed forwards along the central axis direction of the conveying wheel through rotation of the conveying wheel which is opposite to each other, compared with a traditional conveying mode, the conveying speed is slowed down, and therefore the outer peripheral surface of the hollow long rod-shaped part is prevented from being missed in the sand blasting treatment process, and the outer surface of the hollow long rod-shaped part is more uniform.
Further, the bottom of the sand blasting bin 2 is also provided with a collecting bin 9, and the bottom of the collecting bin 9 is connected with a liquid discharge pipe 10. The collecting bin 9 is also in communication with the heating bin 3 via a return pipe 11. By adopting the technical scheme, the used spraying liquid part can be reused, so that the resource investment is saved, and the production cost of enterprises is reduced.
Further, the heating bin 3 is fixedly installed on the top of the sandblasting bin 2. The axial spray pipe 6 is communicated with the heating bin 3 through a corrugated hose. The corrugated hose is preferably made of stainless steel material to extend its service life.
Further, the sand blasting system of the hollow long rod-shaped part further includes a buffer rack 12 arranged side by side outside the input section 101, the top surface of the buffer rack 12 is arranged as a storage surface 1201 obliquely with respect to the horizontal plane, and the lower side of the storage surface 1201 is close to the input section 101. Preferably, the storage surface 1201 has an inclination of 20 ° to 45 ° with respect to the horizontal. The lower side of the storage surface 1201 is also provided with a thumbwheel 13. The hollow long rod-shaped parts can be stacked on the storage surface 1201 in advance through the poking wheel 13, and then the hollow long rod-shaped parts are poked into corresponding positions on the rack one by one.
Further, the conveying device 4 includes a pair of conveying shafts 14 arranged in parallel above the input section 101, conveying wheels 15 are provided at corresponding positions on each of the conveying shafts 14, knurls 1501 inclined to the central axis thereof are provided on the outer peripheral surface of each of the conveying wheels 15, the distance between the outer peripheral surfaces of the two conveying wheels 15 arranged arbitrarily opposite to each other is smaller than the outer diameter of the hollow long rod-shaped part, and the projection of the knurls 1501 on the two conveying wheels 15 arranged arbitrarily opposite to each other on the horizontal plane is in a "eight" shape, wherein the conveying direction of the hollow long rod-shaped part is conveyed from the lower end toward the upper end of the "eight" shape knurls 1501.
Further, the conveying device 4 further comprises a motor 16, a driving wheel 17, a driven wheel 18 and a driving belt 19, the motor 16 is arranged in the frame 1, the driving wheel 17 is connected with an output shaft of the motor 16, the driven wheel 18 is fixedly connected to the tail end of one conveying shaft 14, and the driving wheel 17 and the driven wheel 18 are in meshed transmission through the driving belt 19.
Claims (2)
1. A sand blasting system for hollow long rod-shaped parts, characterized in that: the device comprises a frame (1), a sand blasting bin (2) and a heating bin (3), wherein the sand blasting bin (2) is arranged in the middle of the frame (1), the front side and the rear side of the frame (1) are respectively used as an input section (101) and an output section (102), conveying devices (4) are respectively arranged in the input section (101), the output section (102) and the sand blasting bin (2), radial spray pipes (5) and axial spray pipes (6) are arranged in the sand blasting bin (2), the radial spray pipes (5) are parallel to the conveying direction of the conveying devices (4) and are arranged at the top in the sand blasting bin (2), sliding rails (7) are arranged on the inner walls of the front side and the rear side of the sand blasting bin (2), the axial spray pipes (6) are arranged on the sliding rails (7) and can reciprocate along the vertical direction, and the heating bin (3) is respectively communicated with an input spray liquid, the radial spray pipes (5) and the axial spray pipes (6), and a plurality of spray guns (8) are respectively arranged on the radial spray pipes (5) and the axial spray pipes (6);
the sand blasting system for the hollow long rod-shaped part further comprises a buffer rack (12) which is arranged outside the input section (101) in parallel, wherein the top surface of the buffer rack (12) is used as a storage surface (1201) which is obliquely arranged relative to the horizontal plane, the lower side of the storage surface (1201) is close to the input section (101), the inclination angle of the storage surface (1201) relative to the horizontal plane is 20-45 degrees, and a poking wheel (13) is arranged on the lower side of the storage surface (1201);
the conveying device (4) comprises a pair of conveying shafts (14) which are arranged on the input section (101) in parallel, conveying wheels (15) are arranged at corresponding positions on each conveying shaft (14), knurls (1501) which are inclined to the central axis of the conveying wheels are arranged on the outer peripheral surface of each conveying wheel (15), the distance between the outer peripheral surfaces of two conveying wheels (15) which are arranged in any way opposite to each other is smaller than the outer diameter of a hollow long rod-shaped part, the projections of the knurls (1501) on the two conveying wheels (15) which are arranged in any way opposite to each other on the horizontal plane are in a splayed shape, and the conveying direction of the hollow long rod-shaped part is conveyed from the lower end of each splayed knurl (1501) to the upper end;
the sand blasting machine is characterized in that a collecting bin (9) is further arranged at the bottom of the sand blasting bin (2), a liquid discharge pipe (10) is connected to the bottom of the collecting bin (9), the collecting bin (9) is further communicated with the heating bin (3) through a return pipe (11), the heating bin (3) is fixedly installed at the top of the sand blasting bin (2), and the axial spray pipe (6) is communicated with the heating bin (3) through a corrugated hose.
2. A sand blasting system for hollow elongate rod-like members as claimed in claim 1, wherein: the conveying device (4) further comprises a motor (16), a driving wheel (17), a driven wheel (18) and a transmission belt (19), the motor (16) is installed inside the frame (1), the driving wheel (17) is connected with an output shaft of the motor (16), the driven wheel (18) is fixedly connected to the tail end of one conveying shaft (14), and the driving wheel (17) and the driven wheel (18) are in meshed transmission through the transmission belt (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125136.XA CN109129205B (en) | 2018-09-26 | 2018-09-26 | Sand blasting system for hollow long rod-shaped part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125136.XA CN109129205B (en) | 2018-09-26 | 2018-09-26 | Sand blasting system for hollow long rod-shaped part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109129205A CN109129205A (en) | 2019-01-04 |
| CN109129205B true CN109129205B (en) | 2024-04-02 |
Family
ID=64812759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811125136.XA Active CN109129205B (en) | 2018-09-26 | 2018-09-26 | Sand blasting system for hollow long rod-shaped part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109129205B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113829241A (en) * | 2021-10-29 | 2021-12-24 | 贵州捷盛钻具股份有限公司 | Polishing equipment for transversely and continuously conveying drill rods |
| CN113977460A (en) * | 2021-10-29 | 2022-01-28 | 贵州捷盛钻具股份有限公司 | Hollow long drill rod polishing machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189458A (en) * | 2011-03-24 | 2011-09-21 | 芜湖新兴铸管有限责任公司 | Steel rolling bar chamfering device |
| CN104520070A (en) * | 2012-06-01 | 2015-04-15 | 史密夫和内修有限公司 | Method of orthopaedic implant finishing |
| CN205057820U (en) * | 2015-10-16 | 2016-03-02 | 宝汇建设工程有限公司 | Steel pipe internal and external surface sand blasting unit |
| CN205602604U (en) * | 2016-05-17 | 2016-09-28 | 新昌县东霸提升机制造厂 | Centerless grinder bar conveyer |
| CN107265051A (en) * | 2017-07-29 | 2017-10-20 | 长沙学院 | A kind of staged conveying device of conveyer |
| CN107520432A (en) * | 2017-06-12 | 2017-12-29 | 上海科伟达超声波科技有限公司 | Full-automatic infiltration cleaning line |
| CN207310150U (en) * | 2017-10-24 | 2018-05-04 | 益阳万维竹业有限公司 | A kind of wood-based plate hot pressing transport system |
| CN208841194U (en) * | 2018-09-26 | 2019-05-10 | 贵州捷盛钻具股份有限公司 | A kind of blasting craft production line for hollow long rod shaped part |
-
2018
- 2018-09-26 CN CN201811125136.XA patent/CN109129205B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189458A (en) * | 2011-03-24 | 2011-09-21 | 芜湖新兴铸管有限责任公司 | Steel rolling bar chamfering device |
| CN104520070A (en) * | 2012-06-01 | 2015-04-15 | 史密夫和内修有限公司 | Method of orthopaedic implant finishing |
| CN205057820U (en) * | 2015-10-16 | 2016-03-02 | 宝汇建设工程有限公司 | Steel pipe internal and external surface sand blasting unit |
| CN205602604U (en) * | 2016-05-17 | 2016-09-28 | 新昌县东霸提升机制造厂 | Centerless grinder bar conveyer |
| CN107520432A (en) * | 2017-06-12 | 2017-12-29 | 上海科伟达超声波科技有限公司 | Full-automatic infiltration cleaning line |
| CN107265051A (en) * | 2017-07-29 | 2017-10-20 | 长沙学院 | A kind of staged conveying device of conveyer |
| CN207310150U (en) * | 2017-10-24 | 2018-05-04 | 益阳万维竹业有限公司 | A kind of wood-based plate hot pressing transport system |
| CN208841194U (en) * | 2018-09-26 | 2019-05-10 | 贵州捷盛钻具股份有限公司 | A kind of blasting craft production line for hollow long rod shaped part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109129205A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109129205B (en) | Sand blasting system for hollow long rod-shaped part | |
| CN201907065U (en) | Shot blast cleaning equipment | |
| CN203390535U (en) | Synchronous linked production unit of feeding, sawing and end deburring for steel pipes | |
| CN105151631A (en) | Workpiece conveying mechanism | |
| CN203566509U (en) | Production equipment for cleaning steel plate surfaces | |
| CN211005504U (en) | Roller-hearth quenching furnace feeding cleaning device | |
| CN208841194U (en) | A kind of blasting craft production line for hollow long rod shaped part | |
| CN204725337U (en) | Motor case shot-blasting machine erecting by overhang | |
| CN203265158U (en) | Reciprocating type dedusting cabinet | |
| CN207983145U (en) | A kind of large-scale roller passing shot blasting machine | |
| CN105171575A (en) | Surface deruster for special petroleum pipeline | |
| CN105817442A (en) | Steel plate plane cleaning device | |
| CN116117702A (en) | Intelligent shot blasting machine for production of heat preservation pipes and shot blasting method thereof | |
| CN211256016U (en) | Heat treatment equipment for steel cylinder machining | |
| CN210413082U (en) | Automatic cold heading machine for steel balls of hub bearings | |
| CN206842314U (en) | A kind of insulating tube automatic production line | |
| CN211565100U (en) | Steel rod machining device | |
| CN208494692U (en) | A kind of band rotary-atomizing diesel system | |
| CN208034028U (en) | A kind of full automatic bearing ring forging line | |
| CN203401408U (en) | Online shot blasting machine roller | |
| CN203079229U (en) | Screw shaft conveying mechanism and screw conveying machine | |
| CN201419359Y (en) | Steel-plate shot-blasting machine herringbone shot removing device | |
| CN220535016U (en) | Forging press is used in production of coconut shell column active carbon | |
| CN206240852U (en) | 360 degree of circulating supersonic wave cleaning machine drying lines | |
| CN216469853U (en) | High-strength feeding and discharging hopper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |