CN112428117A - Steel pipe rust cleaning device that polishes - Google Patents
Steel pipe rust cleaning device that polishes Download PDFInfo
- Publication number
- CN112428117A CN112428117A CN202011123367.4A CN202011123367A CN112428117A CN 112428117 A CN112428117 A CN 112428117A CN 202011123367 A CN202011123367 A CN 202011123367A CN 112428117 A CN112428117 A CN 112428117A
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- CN
- China
- Prior art keywords
- side wall
- steel pipe
- rod
- shell
- plate
- 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.)
- Granted
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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
- 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
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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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
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
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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
- 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
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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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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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
- 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 discloses a steel pipe polishing and rust removing device which comprises a shell, wherein a supporting plate is vertically and fixedly arranged in the shell, two fixing plates are symmetrically arranged on the left side of the supporting plate, a steel pipe body is jointly arranged between the two fixing plates, a stepping motor is arranged on the side wall of the fixing plate on the left side, the stepping motor is fixedly arranged on the side wall of the shell, the output end of the stepping motor is fixedly arranged at the center of the side wall of the fixing plate, two telescopic cylinders are symmetrically arranged on the side wall of the steel pipe body, and a servo motor is fixedly arranged at the opposite ends of the two telescopic cylinders through movable rods. According to the invention, the grinding wheel carries out circumferential and axial grinding on the steel pipe body, so that the surface of the steel pipe is more comprehensively and quickly derusted, the derusting effect on the surface of the steel pipe body is improved, the filter screen is convenient for effectively collecting rust powder, the pollution to the surrounding air is avoided, and the body health of people is facilitated.
Description
Technical Field
The invention relates to the technical field of steel pipe polishing, in particular to a steel pipe polishing and rust removing device.
Background
The steel pipes are mostly used for transporting various fluid articles, and the carbon steel pipes with high carbon content are easily oxidized by oxides in the air to cause rust stains on the surfaces of the steel pipes, so the steel pipes need to be subjected to anticorrosion treatment, and the surfaces of the steel pipes need to be polished and derusted before painting and anticorrosion are generally carried out.
The conventional steel pipe polishing mode is mainly characterized in that a worker holds a portable polishing machine to polish and derust the surface of a steel pipe, but the traditional polishing and derusting mode is not comprehensive enough in derusting the surface of the steel pipe, and polished rust powder is not effectively collected, so that the surrounding air is polluted, and the health of people is harmed.
In order to solve the problems, the invention provides a steel pipe polishing and derusting device.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, the surface of a steel pipe is not completely derusted in a traditional polishing derusting mode, and polished rust powder is not effectively collected, so that the surrounding air is polluted and the health of people is harmed, and provides a steel pipe polishing derusting device.
In order to achieve the purpose, the invention adopts the following technical scheme:
a steel pipe polishing and rust removing device comprises a shell, wherein a supporting plate is vertically and fixedly installed in the shell, two fixing plates are symmetrically arranged on the left side of the supporting plate, a steel pipe body is jointly arranged between the two fixing plates, a stepping motor is arranged on the side wall of the left fixing plate, the stepping motor is fixedly installed on the side wall of the shell, the output end of the stepping motor is fixedly installed at the center of the side wall of the fixing plate, two telescopic cylinders are symmetrically arranged on the side wall of the steel pipe body, a servo motor is fixedly installed at the opposite end of each telescopic cylinder through a movable rod, a polishing wheel is fixedly installed at the opposite end of each servo motor through the output end, each polishing wheel is abutted against the side wall of the steel pipe body, and a limiting rod is slidably connected on the side wall of each telescopic cylinder, one end of each limiting rod is fixedly arranged on the side wall of the supporting plate, one end of each telescopic cylinder, which is opposite to the other end, is fixedly provided with a push-pull rod, one end of each push-pull rod, which is opposite to the telescopic cylinder, penetrates through the side wall of the supporting plate and is fixedly provided with a linkage mechanism together, one side of each push-pull rod, which is opposite to the telescopic cylinder, is fixedly provided with a connecting plate, one end of each connecting plate, which is opposite to the push-pull rod, is fixedly provided with a supporting rod, one end of each supporting rod, which is opposite to the connecting plate, is fixedly provided with a pressing plate, one side of each pressing plate, which is opposite to the supporting rod, is fixedly provided with a telescopic air bag, the other end of each telescopic air bag is fixedly provided with a filter shell, the filter shell is fixedly arranged on the inner wall of the, the filter shell is characterized in that two sealing plates are symmetrically and rotatably connected to the inner wall of the connecting pipe, each protruding plate is fixedly mounted on the bottom side wall of each sealing plate, a telescopic rod is rotatably connected to the side wall of each protruding plate, each telescopic rod is rotatably connected to the other end of each telescopic rod, a reset spring is fixedly connected to each telescopic rod, a filter screen is fixedly mounted in the filter shell, two air outlets are symmetrically formed in the side wall of the shell, each air outlet is communicated with the filter shell, and an air outlet one-way valve is fixedly mounted in each air outlet.
Preferably, the linkage mechanism comprises an installation frame and two rotating discs, the installation frame is fixedly installed on the inner wall of the shell, two connecting shafts are symmetrically and rotatably connected in the side wall of the installation frame, and two ends, opposite to the connecting shafts, of the two connecting shafts are respectively and fixedly provided with a second bevel gear.
Preferably, a first helical gear is meshed and connected between the two second helical gears, a main shaft is fixedly mounted at the center of the left side wall of the first helical gear, the other end of the main shaft penetrates through the supporting plate and is fixedly mounted at the center of the side wall of the fixing plate on the right side, and the main shaft is rotatably connected at the center of the supporting plate.
Preferably, one end of the connecting shaft, which deviates from the second helical gear, is fixedly installed at the center of the rotating disc, one side edge of the rotating disc, which deviates from the connecting shaft, is rotatably connected with a connecting rod, one end of the connecting rod, which deviates from the rotating disc, is rotatably connected with a swing rod, and the other end of the swing rod is rotatably connected with one end of the push-pull rod, which deviates from the telescopic cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. the polishing wheel can polish the steel pipe body in the circumferential direction and the axial direction, so that the surface of the steel pipe can be derusted more comprehensively and quickly, and the derusting effect on the surface of the steel pipe body is improved;
2. the filter screen can carry out effectual collection to the rust powder, has also avoided causing the pollution to the air on every side, is favorable to people's healthy, and the closing plate resets under the effect of spring force at this moment and seals up the connecting pipe once more.
Drawings
FIG. 1 is a schematic front structural view of a steel pipe polishing and rust removing device provided by the invention;
fig. 2 is an enlarged schematic view of a point a in fig. 1.
In the figure: the device comprises a first bevel gear 1, a second bevel gear 2, a mounting frame 3, a main shaft 4, a connecting rod 5, a rotating disc 6, a push-pull rod 7, a servo motor 8, a polishing wheel 9, a telescopic cylinder 10, a steel pipe body 11, a limiting rod 12, a fixing plate 13, a shell 14, an air outlet hole 15, a telescopic air bag 16, a resisting rod 17, a connecting plate 18, an air outlet one-way valve 19, a filter screen 20, a filter shell 21, a telescopic rod 22, a suction cup 23, a sealing plate 24 and a connecting pipe 25.
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.
Referring to fig. 1-2, a steel pipe polishing and rust removing device comprises a housing 14, a support plate is vertically and fixedly installed in the housing 14, two fixing plates 13 are symmetrically arranged on the left side of the support plate, each fixing plate 13 is provided with a steel pipe body 11 between the two fixing plates 13, a stepping motor is arranged on the side wall of the fixing plate 13 on the left side, the stepping motor is fixedly installed on the side wall of the housing 14, the output end of the stepping motor is fixedly installed at the center of the side wall of the fixing plate 13, two telescopic cylinders 10 are symmetrically arranged on the side wall of the steel pipe body 11, servo motors 8 are fixedly installed at the opposite ends of the two telescopic cylinders 10 through movable rods, polishing wheels 9 are fixedly installed at the opposite ends of the two servo motors 8 through the output ends, each polishing wheel 9 abuts against the side wall of the steel pipe body 11, and a limiting, one end of each limiting rod 12 is fixedly arranged on the side wall of the supporting plate, the opposite ends of the two telescopic cylinders 10 are fixedly provided with push-pull rods 7, one ends of the two push-pull rods 7 departing from the telescopic cylinders 10 penetrate through the side wall of the supporting plate and are fixedly provided with a linkage mechanism together, the linkage mechanism comprises an installation frame 3 and two rotating discs 6, the installation frame 3 is fixedly arranged on the inner wall of the shell 14, two connecting shafts are symmetrically and rotatably connected in the side wall of the installation frame 3, two bevel gears 2 are respectively and fixedly arranged at the opposite ends of the two connecting shafts, a first bevel gear 1 is jointly meshed and connected between the two bevel gears 2, a main shaft 4 is fixedly arranged at the center of the left side wall of the first bevel gear 1, the other end of the main shaft 4 penetrates through the supporting plate and is fixedly arranged at the center of the side wall, one end of the connecting shaft, which is far away from the second bevel gear 2, is fixedly arranged at the center of the rotating disc 6, one side edge of the rotating disc 6, which is far away from the connecting shaft, is rotatably connected with a connecting rod 5, one end of the connecting rod 5, which is far away from the rotating disc 6, is rotatably connected with one end of the push-pull rod 7, which is far away from the telescopic cylinder 10, one side of each push-pull rod 7, which is far away from the telescopic cylinder 10, is fixedly provided with a connecting plate 18, one end of each connecting plate 18, which is far away from the push-pull rod 7, is fixedly provided with a resisting rod 17, one end of each resisting rod 17, which is far away from the connecting plate 18, is fixedly provided with a pressing plate, one side of the pressing plate, which is far away from the resisting rod 17, is fixedly provided with a telescopic airbag 16, the other end of the, one end that every connecting pipe 25 deviates from to strain shell 21 all is provided with sucking disc 23, the symmetry rotates on the inner wall of connecting pipe 25 and is connected with two closing plates 24, equal fixed mounting has the flange on the bottom lateral wall of every closing plate 24, it is connected with telescopic link 22 to rotate on the lateral wall of flange, the other end of every telescopic link 22 all rotates and connects on the lateral wall of connecting pipe 25, fixed cover has reset spring on the telescopic link 22, fixed mounting has filter screen 20 in straining shell 21, two ventholes 15 have been seted up to the symmetry on the lateral wall of casing 14, every venthole 15 all communicates each other with straining shell 21, fixed mounting has air outlet check valve 19 in the venthole 15.
In the invention, a steel pipe body 11 is fixed between two fixing plates 13, then a stepping motor is started, the stepping motor drives the two fixing plates 13 to rotate, so as to drive the steel pipe body 11 to rotate, and simultaneously drive a main shaft 4 to rotate, the main shaft 4 drives a first bevel gear 1 to rotate, the first bevel gear 1 drives two second bevel gears 2 to rotate, the two second bevel gears 2 respectively drive a rotating disc 6 to rotate, the rotating disc 6 drives a swinging rod to rotate through a connecting rod 5, so as to drive a push-pull rod 7 to reciprocate left and right, the push-pull rod 7 drives a telescopic cylinder 10 to slide left and right on a limiting rod 12, and the telescopic cylinder 10 pushes a servo motor 8 through a piston end so that a grinding wheel 9 at the front end of the servo motor 8 abuts against the side wall of the steel pipe body 11, so that the grinding wheel 9 performs circumferential and axial grinding on the steel pipe body 11, and the surface, the rust removal effect on the surface of the steel pipe body 11 is improved; the push-pull rod 7 can drive the connecting plate 18 to move left and right when reciprocating left and right, when the connecting plate 18 moves left, the telescopic air bag 16 can be compressed through the pressing plate, air in the telescopic air bag 16 is pressed into the filter shell 21 and is discharged out of the shell 14 through the air outlet one-way valve 19 and the air outlet 15, when the connecting plate 18 moves right, the pressure in the filter shell 21 is reduced, air in the shell 14 can enter the filter shell 21 through the suction cup 23 under the action of negative pressure, and in the process, the two sealing plates 24 can deflect and extrude the telescopic rod 22 in the direction departing from the suction cup 23 under the action of the pressure; when the connecting plate 18 moves leftwards again, the air in the filter shell 21 is squeezed again, the air is filtered by the filter screen 20 and then discharged out of the shell 14, so that the rust powder is effectively collected, the pollution to the surrounding air is avoided, the health of people is facilitated, and the connecting pipe 25 is sealed again by the aid of the reset of the sealing plate 24 under the action of spring elasticity.
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 (4)
1. A steel pipe polishing and rust removing device comprises a shell (14) and is characterized in that a support plate is vertically and fixedly mounted in the shell (14), two fixing plates (13) are symmetrically arranged on the left side of the support plate, a steel pipe body (11) is jointly arranged between each fixing plate (13), a stepping motor is arranged on the side wall of the left fixing plate (13), the stepping motor is fixedly mounted on the side wall of the shell (14), the output end of the stepping motor is fixedly mounted at the center of the side wall of each fixing plate (13), two telescopic cylinders (10) are symmetrically arranged on the side wall of the steel pipe body (11), one ends, opposite to the two telescopic cylinders (10), of each telescopic cylinder are fixedly provided with a servo motor (8) through a movable rod, and one ends, opposite to the two servo motors (8), of each grinding wheel (9) is fixedly mounted through the output end, each polishing wheel (9) abuts against the side wall of the steel pipe body (11), a limiting rod (12) is connected to the side wall of each telescopic cylinder (10) in a sliding mode, one end of each limiting rod (12) is fixedly installed on the side wall of the supporting plate, one end, opposite to each other, of each telescopic cylinder (10) is fixedly provided with a push-pull rod (7), one end, away from each telescopic cylinder (10), of each push-pull rod (7) penetrates through the side wall of the supporting plate and is fixedly provided with a linkage mechanism, one side, away from each telescopic cylinder (10), of each push-pull rod (7) is fixedly provided with a connecting plate (18), one end, away from each push-pull rod (7), of each connecting plate (18) is fixedly provided with a resisting rod (17), one end, away from each connecting plate (17), of each resisting rod (17) is fixedly provided with a pressing plate, one side, away from each resisting rod (17), is fixedly provided with a, the other end of the telescopic air bag (16) is fixedly provided with a filter shell (21), the filter shell (21) is fixedly arranged on the inner wall of the shell (14), one side of each of the two filter shells (21) opposite to each other is fixedly provided with a connecting pipe (25), the connecting pipes (25) are communicated with the filter shells (21), one end of each connecting pipe (25) departing from the filter shell (21) is provided with a sucker (23), the inner wall of each connecting pipe (25) is symmetrically and rotatably connected with two sealing plates (24), the bottom side wall of each sealing plate (24) is fixedly provided with a convex plate, the side wall of each convex plate is rotatably connected with a telescopic rod (22), the other end of each telescopic rod (22) is rotatably connected to the side wall of the connecting pipe (25), the telescopic rod (22) is fixedly connected with a return spring, and a filter screen (20) is fixedly arranged in the filter shell (21), two air outlet holes (15) are symmetrically formed in the side wall of the shell (14), each air outlet hole (15) is communicated with the filter shell (21), and an air outlet one-way valve (19) is fixedly mounted in each air outlet hole (15).
2. The steel pipe polishing and rust removing device of claim 1, wherein the linkage mechanism comprises a mounting frame (3) and two rotating discs (6), the mounting frame (3) is fixedly mounted on the inner wall of the shell (14), two connecting shafts are symmetrically and rotatably connected in the side wall of the mounting frame (3), and two bevel gears (2) are respectively and fixedly mounted at the opposite ends of the two connecting shafts.
3. The steel pipe polishing and rust removing device according to claim 2, characterized in that a first bevel gear (1) is engaged and connected between the two second bevel gears (2), a main shaft (4) is fixedly installed at the center of the left side wall of the first bevel gear (1), the other end of the main shaft (4) penetrates through the support plate and is fixedly installed at the center of the side wall of the fixing plate (13) on the right side, and the main shaft (4) is rotatably connected at the center of the support plate.
4. The steel pipe polishing and rust removing device as claimed in claim 3, wherein one end of the connecting shaft, which is far away from the second bevel gear (2), is fixedly installed at the center of the rotating disc (6), one side edge of the rotating disc (6), which is far away from the connecting shaft, is rotatably connected with the connecting rod (5), one end of the connecting rod (5), which is far away from the rotating disc (6), is rotatably connected with a swing rod, and the other end of the swing rod is rotatably connected with one end of the push-pull rod (7), which is far away from the telescopic cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123367.4A CN112428117B (en) | 2020-10-20 | 2020-10-20 | Steel pipe rust cleaning device that polishes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123367.4A CN112428117B (en) | 2020-10-20 | 2020-10-20 | Steel pipe rust cleaning device that polishes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112428117A true CN112428117A (en) | 2021-03-02 |
| CN112428117B CN112428117B (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011123367.4A Active CN112428117B (en) | 2020-10-20 | 2020-10-20 | Steel pipe rust cleaning device that polishes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112428117B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536118A (en) * | 2022-03-02 | 2022-05-27 | 东莞市千岛机械制造有限公司 | Eight high accuracy numerical control instrument cylindrical grinder |
| CN114769449A (en) * | 2022-04-29 | 2022-07-22 | 田晓涵 | Thermal forming equipment for uniform-section boron steel pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6386958B1 (en) * | 2000-08-14 | 2002-05-14 | Chun-Hsiang Wang | Reciprocating-type abrasive device for a sanding machine |
| CN110026870A (en) * | 2019-03-18 | 2019-07-19 | 邹晓飞 | A kind of round steel grinding device |
| CN211589637U (en) * | 2019-10-23 | 2020-09-29 | 江苏皓东鲲医疗科技有限公司 | Medical instrument production is with rust cleaning grinding device |
| CN211681245U (en) * | 2020-03-11 | 2020-10-16 | 刘静娜 | Surface grinding device for machining |
-
2020
- 2020-10-20 CN CN202011123367.4A patent/CN112428117B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6386958B1 (en) * | 2000-08-14 | 2002-05-14 | Chun-Hsiang Wang | Reciprocating-type abrasive device for a sanding machine |
| CN110026870A (en) * | 2019-03-18 | 2019-07-19 | 邹晓飞 | A kind of round steel grinding device |
| CN211589637U (en) * | 2019-10-23 | 2020-09-29 | 江苏皓东鲲医疗科技有限公司 | Medical instrument production is with rust cleaning grinding device |
| CN211681245U (en) * | 2020-03-11 | 2020-10-16 | 刘静娜 | Surface grinding device for machining |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114536118A (en) * | 2022-03-02 | 2022-05-27 | 东莞市千岛机械制造有限公司 | Eight high accuracy numerical control instrument cylindrical grinder |
| CN114536118B (en) * | 2022-03-02 | 2022-10-14 | 东莞市千岛机械制造有限公司 | Eight-axis high-precision numerical control tool cylindrical grinding machine |
| CN114769449A (en) * | 2022-04-29 | 2022-07-22 | 田晓涵 | Thermal forming equipment for uniform-section boron steel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112428117B (en) | 2021-12-03 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20211115 Address after: 434000 No. 127, Dongfang Avenue, high tech Industrial Development Zone, Jingzhou City, Hubei Province Applicant after: JINGDA (JINGZHOU) AUTOMOTIVE CO.,LTD. Address before: 361003 No. 394, Siming South Road, Siming District, Xiamen City, Fujian Province Applicant before: Luo Feng |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A steel pipe polishing and rust removal device Effective date of registration: 20230802 Granted publication date: 20211203 Pledgee: China Everbright Bank Co.,Ltd. Jingzhou Branch Pledgor: JINGDA (JINGZHOU) AUTOMOTIVE CO.,LTD. Registration number: Y2023980050596 |
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