CN112157026A - Frictioning device for machining - Google Patents
Frictioning device for machining Download PDFInfo
- Publication number
- CN112157026A CN112157026A CN202011117365.4A CN202011117365A CN112157026A CN 112157026 A CN112157026 A CN 112157026A CN 202011117365 A CN202011117365 A CN 202011117365A CN 112157026 A CN112157026 A CN 112157026A
- Authority
- CN
- China
- Prior art keywords
- scraping
- cutting
- grinding
- roller
- fixed
- 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.)
- Withdrawn
Links
- 238000003754 machining Methods 0.000 title claims abstract description 30
- 238000007790 scraping Methods 0.000 claims abstract description 61
- 238000005498 polishing Methods 0.000 claims abstract description 39
- 239000003292 glue Substances 0.000 claims abstract description 31
- 238000005520 cutting process Methods 0.000 claims description 50
- 238000000227 grinding Methods 0.000 claims description 36
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 238000010073 coating (rubber) Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 18
- 238000013461 design Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
- B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention is suitable for the technical field of machining, and particularly relates to a glue scraping device for machining, which comprises a main body, a polishing assembly, a scraping assembly and rollers, wherein two sides of the main body are respectively fixed with two horizontally arranged side plates, through holes are formed in the side plates, supporting rods are arranged in the through holes in a sliding mode, a connecting plate is fixed at the upper end of each supporting rod, the lower end of each supporting rod is rotatably connected with a roller frame, the rollers are rotatably connected in the roller frames, springs are fixed between the connecting plates and the upper end faces of the side plates, the polishing assembly and the scraping assembly are fixed on the lower end face of the main body through fixing frames, and the polishing assembly and the scraping assembly are respectively used for polishing and scraping glue on a workpiece. The frictioning device for machining provided by the embodiment of the invention has the advantages of simple structure and reasonable design, can automatically adapt to frictioning operation environments of different scenes, ensures frictioning efficiency and protects workpieces to the greatest extent through a step-by-step process.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a glue scraping device for machining.
Background
Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device. The difference in the machining method can be divided into cutting machining and pressing machining. The production process of a machine refers to the whole process of making a product from raw materials (or semi-finished products). For machine production, the raw material transportation and preservation, production preparation, blank manufacturing, part processing and heat treatment, product assembly and debugging, painting and packaging and the like are included. The content of the production process is very wide, modern enterprises organize production and guide production by using the principle and method of system engineering, and the production process is regarded as a production system with input and output.
In the production process, all the processes of changing the shape, size, position, property, etc. of the production object into a finished product or a semi-finished product are called as a process. It is an integral part of the production process. The processes can be divided into casting, forging, stamping, welding, machining, assembling and other processes, the mechanical manufacturing process generally refers to the sum of the machining process of the parts and the assembling process of the machine, and other processes are called auxiliary processes, such as transportation, storage, power supply, equipment maintenance and the like. The technological process consists of one or several steps in sequence.
In the machining process, it is often necessary to fix the parts with glue or perform waterproofing treatment with glue. However, the condition of rework is inevitable in the processing process, when the rework is performed, the situation that glue on a workpiece needs to be removed is a troublesome thing, and for the dried glue, the cleaning difficulty is large, time and labor are wasted, and the workpiece is easy to damage.
Disclosure of Invention
The embodiment of the invention aims to provide a frictioning device for machining, and aims to solve the problems that manual frictioning is time-consuming and labor-consuming and the cleaning effect is poor in the machining process.
The embodiment of the invention is realized in such a way that the glue scraping device for machining comprises a main body, a polishing assembly, a scraping and cutting assembly and rollers, wherein two side plates which are horizontally arranged are respectively fixed on two sides of the main body, through holes are formed in the side plates, supporting rods are arranged in the through holes in a sliding mode, a connecting plate is fixed at the upper end of each supporting rod, the lower end of each supporting rod is rotatably connected with a roller frame, the rollers are rotatably connected in the roller frames, springs are fixed between the connecting plates and the upper end faces of the side plates, the polishing assembly and the scraping and cutting assembly are fixed on the lower end face of the main body through fixing frames, and the polishing assembly and the scraping and cutting assembly are respectively used for polishing and scraping.
Preferably, scrape and cut the subassembly including scraping and cutting the roller and scraping and cut the motor, scrape and cut the motor and fix on the mount, scrape and cut the roller and rotate to connect on the mount, scrape in the axis of rotation of cutting the motor and scrape the one end of cutting the roller and all be provided with the band pulley, two band pulleys are through scraping cut the drive belt and connect, scrape and cut the roller and be cylinder type structure, and the spiral is provided with the blade on the external diameter.
Preferably, the grinding assembly comprises a grinding roller and a grinding motor, the grinding motor is fixed on the fixing frame, the grinding roller is rotatably connected to the fixing frame, belt pulleys are arranged on the rotating shaft of the grinding motor and one end of the grinding roller, the two belt pulleys are connected through a grinding transmission belt, the grinding roller is of a cylindrical structure, and grinding particles are arranged on the outer diameter of the grinding roller.
Preferably, the main body is provided with an observation groove, two groups of plane mirrors which are arranged in parallel are fixed in the observation groove, and the two groups of plane mirrors are used for assisting a user in observing the glue coating condition of the workpiece.
Preferably, the bottom of the main body is further provided with a pre-cutting sheet, one end of the pre-cutting sheet is fixedly connected with the bottom of the main body, a plurality of cutters arranged in parallel are fixed at the other end of the pre-cutting sheet, the cutters are used for cutting glue on the surface of a workpiece into sheets, and the pre-cutting sheet, the scraping and cutting assembly and the polishing assembly are sequentially arranged.
Preferably, a dust suction device is arranged at the bottom of the main body and at a position on one side of the grinding assembly, which is far away from the scraping and cutting assembly, and the dust suction device is used for collecting the ground debris.
Preferably, a handle is fixed on the upper end face of the main body, and anti-skid grains are arranged on the handle.
The frictioning device for machining provided by the embodiment of the invention has the advantages of simple structure and reasonable design, can automatically adapt to frictioning operation environments of different scenes, ensures frictioning efficiency and protects workpieces to the greatest extent through a step-by-step process.
Drawings
Fig. 1 is a partial structural schematic view of a frictioning device for machining according to an embodiment of the present invention;
fig. 2 is a partial structural schematic view of a frictioning device for machining according to an embodiment of the present invention;
fig. 3 is a top view of a frictioning device for machining according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pre-slicing method according to an embodiment of the present invention.
In the drawings: 1. a main body; 2. polishing the motor; 3. grinding a roller; 4. a fixed mount; 5. polishing the transmission belt; 6. a strut; 7. a connecting plate; 8. a spring; 9. a limiting plate; 10. a roller frame; 11. a roller; 12. a side plate; 13. a scraping motor; 14. scraping and cutting the transmission belt; 15. a scraping and cutting roller; 16. observing the groove; 17. a handle; 18. anti-skid lines; 19. a dust suction device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
As shown in fig. 1 and 2, a partial structural schematic view of a frictioning device for machining provided by an embodiment of the present invention includes a main body 1, a polishing assembly, a scraping assembly and a roller 11, two side plates 12 horizontally disposed are respectively fixed on two sides of the main body 1, a through hole is disposed on each side plate 12, a supporting rod 6 is slidably disposed in the through hole, a connecting plate 7 is fixed at an upper end of the supporting rod 6, a roller frame 10 is rotatably connected at a lower end of the supporting rod, the roller 11 is rotatably connected in the roller frame 10, a spring 8 is fixed between the connecting plate 7 and an upper end surface of the side plate 12, the polishing assembly and the scraping assembly are both fixed at a lower end surface of the main body 1 through a fixing frame 4, and the polishing assembly and the scraping assembly are respectively used for polishing and scraping glue on a workpiece.
In one example of the invention, during machining, the conditions of bonding by glue and or sealing by glue are very common; for example, in the processing industry of door and window curtain walls, waterproof glue is often adopted for waterproof treatment so as to enhance the waterproof effect of the door and window or the curtain wall; the connection between certain parts is reinforced by structural adhesive; current waterproof glue and structure are glued and are had extremely strong adhesion usually, in case after the dry design just as rubber is difficult to the clearance generally, artificial clearance mode mainly is to adopt blade or plastic sheet to strike off, but no matter blade or plastic sheet, the in-process of striking off appears the deformation easily, the work piece surface of being scraped still can be attached to a large amount of tiny granules, consequently not only wastes time and energy through artifical frictioning, the clearance effect is still unsatisfactory. When the glue scraping device is used, the polishing assembly and the scraping assembly are pressed downwards according to the position of glue to be cleaned, so that the polishing assembly and the scraping assembly are abutted against a glue-coated surface of a workpiece, the scraping assembly firstly scrapes off glue attached to the workpiece in a large batch, and then the polishing assembly polishes a small amount of glue involved, so that the surface of the workpiece is cleaned; when the part to be cleaned is a concave structure, such as an ㄩ -type structure, glue is coated inside the concave, when the part to be cleaned is cleaned, rollers arranged on two sides of the main body 1 are abutted against the upper ends of two side walls of the concave, then the main body 1 is pressed, the main body 1 drives the grinding assembly and the scraping assembly to move towards the inner side of the concave, then the glue is cleaned through the grinding assembly, in the cleaning process, the grinding assembly and the scraping assembly are driven by the main body 1 to move along the surface of a workpiece, and the rollers 11 always keep guiding; in the invention, the roller frame 10 is rotatably connected with the support rod 6, and the spring positioned between the UI side plates 12 of the connecting plate 7 can realize the up-and-down movement of the support rod 6, so that when the heights of the two side walls of the recess are different, the roller frame 10 drives the roller 11 to rotate, thereby ensuring the guiding stability.
In an example of the present invention, the supporting rod 6 is further provided with a limiting plate 9, and the limiting plate 9 is used for limiting the rotation angle range of the roller frame 10, so that the present invention can be used for performing a glue scraping operation on a cylindrical workpiece.
As shown in fig. 1, 2 and 3, as a preferred embodiment of the present invention, the scraping and cutting assembly includes a scraping and cutting roller 15 and a scraping and cutting motor 13, the scraping and cutting motor 13 is fixed on the fixed frame 4, the scraping and cutting roller 15 is rotatably connected to the fixed frame 4, the rotating shaft of the scraping and cutting motor 13 and one end of the scraping and cutting roller 15 are both provided with belt pulleys, the two belt pulleys are connected by a scraping and cutting transmission belt 14, the scraping and cutting roller 15 is cylindrical, and the outer diameter of the scraping and cutting roller is spirally provided with a cutting edge.
In one embodiment of the present invention, when the scraper motor 13 is turned on, the scraper motor 13 drives the scraping roller 15 to rotate through the scraping conveyor belt 14, and the cutting edge on the outer diameter of the scraping roller 15 scrapes off the glue on the surface of the workpiece layer by layer when the scraping roller 15 rotates.
As shown in fig. 1, 2 and 3, as a preferred embodiment of the present invention, the polishing assembly includes a polishing roller 3 and a polishing motor 2, the polishing motor 2 is fixed on a fixing frame 4, the polishing roller 3 is rotatably connected to the fixing frame 4, pulleys are provided on a rotating shaft of the polishing motor 2 and one end of the polishing roller 3, the two pulleys are connected by a polishing belt 5, the polishing roller 3 is cylindrical, and polishing particles are provided on an outer diameter thereof.
In one example of the present invention, the grinding roller 3 is mainly made of a rubber material, and grinding particles are attached to the surface thereof. When polishing is carried out, a polishing motor 2 is started, the polishing motor 2 drives a polishing roller 3 to rotate through a polishing transmission belt 5, and residual glue is cleaned through polishing particles; and because the main part of the grinding roller 3 is made of rubber materials and has certain elasticity, the grinding roller 3 can be ensured to be tightly attached to a workpiece during grinding, and the grinding effect is ensured.
As shown in fig. 1, 2 and 4, as a preferred embodiment of the present invention, an observation groove 16 is provided on the main body 1, two sets of plane mirrors are fixed in the observation groove 16, and the two sets of plane mirrors are used to assist a user in observing the glue coating condition of a workpiece.
In one embodiment of the present invention, the glue coating condition of the workpiece under the main body 1 cannot be directly observed during use, so that the condition of the workpiece surface is transmitted to the user through two reflections, thereby allowing the user to quickly know the glue coating condition of the workpiece surface.
As shown in fig. 1 and 4, as a preferred embodiment of the present invention, the bottom of the main body 1 is further provided with a pre-cutting sheet, one end of the pre-cutting sheet is fixedly connected to the bottom of the main body 1, and the other end of the pre-cutting sheet is fixedly provided with a plurality of parallel cutters, the cutters are used for cutting the glue on the surface of the workpiece into sheets, and the pre-cutting sheet, the scraping assembly and the polishing assembly are sequentially arranged.
As shown in fig. 1 and 4, as a preferred embodiment of the present invention, a dust suction device 19 is provided at the bottom of the main body 1 at a position on the side of the grinding assembly away from the scraping assembly, and the dust suction device 19 is used for collecting the ground debris.
In one embodiment of the invention, debris from sanding is sucked away by the suction device 19 during use, thereby avoiding inconvenient manual cleaning.
As shown in fig. 1 and 4, as a preferred embodiment of the present invention, a handle 17 is fixed on the upper end surface of the main body 1, and the handle 17 is provided with an anti-slip pattern 18.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a frictioning device for machining, a serial communication port, frictioning device for machining includes main part (1), the subassembly of polishing, scrape and cut subassembly and gyro wheel (11), main part (1) both sides respectively are fixed with curb plate (12) that two levels set up, set up the through-hole on curb plate (12), it is provided with branch (6) to slide in the through-hole, the upper end of branch (6) is fixed with connecting plate (7), and the lower extreme rotates and is connected with gyro wheel frame (10), gyro wheel (11) rotate to be connected in gyro wheel frame (10), be fixed with spring (8) between connecting plate (7) and curb plate (12) up end, the subassembly of polishing all fixes the lower terminal surface in main part (1) through mount (4) with scraping and cutting the subassembly, the subassembly of polishing is used for polishing and scraping respectively and cuts with scraping the glue on the.
2. The frictioning device for machining according to claim 1, characterized in that, the scraping and cutting assembly includes a scraping and cutting roller (15) and a scraping and cutting motor (13), the scraping and cutting motor (13) is fixed on the fixing frame (4), the scraping and cutting roller (15) is rotatably connected on the fixing frame (4), both the rotating shaft of the scraping and cutting motor (13) and one end of the scraping and cutting roller (15) are provided with belt wheels, the two belt wheels are connected through a scraping and cutting transmission belt (14), the scraping and cutting roller (15) is of a cylindrical structure, and the outer diameter of the scraping and cutting roller is spirally provided with a cutting edge.
3. The frictioning device for machining according to claim 1, characterized in that the grinding assembly comprises a grinding roller (3) and a grinding motor (2), the grinding motor (2) is fixed on a fixed frame (4), the grinding roller (3) is rotatably connected on the fixed frame (4), belt pulleys are arranged on the rotating shaft of the grinding motor (2) and one end of the grinding roller (3), the two belt pulleys are connected through a grinding transmission belt (5), the grinding roller (3) is of a cylindrical structure, and grinding particles are arranged on the outer diameter of the grinding roller.
4. The frictioning device of any one of claims 1 to 3, wherein the main body (1) is provided with an observation groove (16), two sets of plane mirrors are fixed in the observation groove (16) and are arranged in parallel, and the two sets of plane mirrors are used for assisting a user in observing the rubber coating condition of the workpiece.
5. The frictioning device for machining according to claim 4, characterized in that the bottom of the main body (1) is further provided with a pre-cutting piece, one end of the pre-cutting piece is fixedly connected with the bottom of the main body (1), and the other end of the pre-cutting piece is fixedly provided with a plurality of parallel cutters, the cutters are used for cutting the glue on the surface of the workpiece into sheets, and the pre-cutting piece, the scraping component and the grinding component are sequentially arranged.
6. A frictioning device for machining according to claim 5, characterized in that the bottom of the main body (1) is provided with a dust collector (19) at a position of the grinding assembly far away from the scraping assembly, and the dust collector (19) is used for collecting the ground debris.
7. The frictioning device for machining according to claim 4, characterized in that a handle (17) is fixed on the upper end face of the main body (1), and the handle (17) is provided with anti-skid lines (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117365.4A CN112157026A (en) | 2020-10-19 | 2020-10-19 | Frictioning device for machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117365.4A CN112157026A (en) | 2020-10-19 | 2020-10-19 | Frictioning device for machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112157026A true CN112157026A (en) | 2021-01-01 |
Family
ID=73867404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011117365.4A Withdrawn CN112157026A (en) | 2020-10-19 | 2020-10-19 | Frictioning device for machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112157026A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935831A (en) * | 2021-02-02 | 2021-06-11 | 中山大学 | Large-scale metal structures surface attachment clearance grinding device |
| CN114310046A (en) * | 2021-12-31 | 2022-04-12 | 江苏隆宝重工科技有限公司 | Adjustable welding roller frame based on full-automatic application |
-
2020
- 2020-10-19 CN CN202011117365.4A patent/CN112157026A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935831A (en) * | 2021-02-02 | 2021-06-11 | 中山大学 | Large-scale metal structures surface attachment clearance grinding device |
| CN112935831B (en) * | 2021-02-02 | 2022-02-22 | 中山大学 | Large-scale metal structures surface attachment clearance grinding device |
| CN114310046A (en) * | 2021-12-31 | 2022-04-12 | 江苏隆宝重工科技有限公司 | Adjustable welding roller frame based on full-automatic application |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210101 |
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| WW01 | Invention patent application withdrawn after publication |