CN211218991U - Material scraping device for removing outer burrs of high-frequency straight welded pipe - Google Patents
Material scraping device for removing outer burrs of high-frequency straight welded pipe Download PDFInfo
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- CN211218991U CN211218991U CN201922005697.2U CN201922005697U CN211218991U CN 211218991 U CN211218991 U CN 211218991U CN 201922005697 U CN201922005697 U CN 201922005697U CN 211218991 U CN211218991 U CN 211218991U
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Abstract
The utility model provides a scraping device for removing outer burrs of a high-frequency longitudinal welded pipe, which belongs to the technical field of outer burr removing tools of longitudinal welded pipes and comprises a tool rest body, a cutting knife, a roller and a fixed assembly; one end of the tool rest body is hinged with the rotating shaft and is positioned right above the welding line; the cutting knife is arranged on the knife rest body, and one end of the cutting knife extends out of the bottom end of the knife rest body and is used for being attached to the outer wall of the welded pipe; the fixing component is arranged on the tool rest body; the roller is rotationally connected with the cutter frame body, is positioned on one side of the cutting cutter and is used for contacting with the outer wall of the welded pipe; the roller is provided with an avoiding groove for a welding seam on the welded pipe to pass through; the utility model discloses a knife rest body, cutting sword, running roller and fixed subassembly's cooperation can reduce the condition of cutting sword scratch welded tube according to the change of welded tube circularity, the distance between adjustment cutting sword and the welded tube outer wall at the outer burr excision in-process of butt weld.
Description
Technical Field
The utility model belongs to the technical field of frock is got rid of to straight welded pipe outer burr, more specifically says so, relates to a scraper that is used for high frequency straight welded pipe to get rid of outer burr.
Background
The high-frequency straight-seam welded steel pipe is also called a straight-seam high-frequency resistance welded steel pipe, the caliber of the high-frequency straight-seam welded steel pipe is generally small and generally below DN600, and a large caliber generally adopts a double-sided submerged arc welded steel pipe; the high-frequency straight welding steel pipe has high welding speed, small welding heat affected zone, and can be welded into thin-walled pipes and metal pipes; in the manufacturing process of the high-frequency straight welded steel pipe, the edge of the pipe blank is a welded circular pipe after being heated at high temperature and formed by the extrusion roller, and internal and external burrs are generated at the welding seam, and the external burrs not only influence the appearance quality of the welded pipe, but also bring inconvenience for the subsequent treatment and inspection processes of the welded pipe. After the welded pipe is subjected to high-frequency welding, the welding seam is located on a vertical plane and faces upwards, and the welded pipe slides in a forming unit along the axial direction of the welded pipe by driving a roller; a rotating shaft penetrates through the forming unit and is rotatably connected with the forming unit, the rotating shaft is positioned above the welded pipe, and the axis of the rotating shaft is positioned on the horizontal plane and is vertical to the axis of the welded pipe; in the prior art, the outer burrs at the welding seam are removed by adopting a manual operation hand wheel, but the welding pipe moves along the diameter direction, the roundness of the welding pipe along the diameter direction can change, the cutting depth can be adjusted manually according to the roundness of the welding pipe, and the pipe body can be scratched in the manual depth adjustment process, so that the production of the welding pipe is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a scraper that is used for high frequency longitudinal welded pipe to get rid of outer burr aims at solving because the manual regulation depth of cut causes the technical problem of scratch body.
In order to achieve the above object, the utility model adopts the following technical scheme: the scraping device for removing the outer burrs of the high-frequency straight welded pipe comprises a tool rest body, a cutting tool, a roller and a fixing assembly; one end of the tool rest body is hinged with the rotating shaft and is positioned right above the welding line; the cutting knife is arranged on the knife rest body, and one end of the cutting knife extends out of the bottom of the knife rest body and is used for being attached to the outer wall of the welded pipe so as to cut outer burrs on the welded pipe; the fixing assembly is arranged on the tool rest body and is used for fixing the cutting tool on the tool rest body; the roller is rotatably connected with the tool rest body, is positioned on one side of the cutting knife and is used for contacting with the outer wall of the welded pipe so as to enable the cutting knife to cut the preset position of the weld joint; and the roller wheel is provided with an avoiding groove for the passing of a welding seam on the welded pipe.
As another embodiment of the present application, a placing groove for placing the cutting blade is formed in the holder body, and the placing groove is communicated with the top of the holder body and a space for passing an external burr after cutting is reserved between the cutting blade and the placing groove.
As another embodiment of this application, the running roller pass through the roller with the tool rest body is connected, the roller with be provided with the axle sleeve between the running roller, the roller with the connection can be dismantled to the tool rest body.
As another embodiment of this application, the bottom of tool holder body has seted up through the groove, the running roller is located through the inslot, through the groove with the standing groove intercommunication.
As another embodiment of the present application, the fixing assembly includes a fixing column and a fixing unit; the fixing column is inserted into the tool rest body, and the insertion end of the fixing column is abutted against the cutting knife and is used for abutting the cutting knife in the placing groove; the fixing unit is arranged on the tool rest body and used for fixing the fixing column on the tool rest body.
As another embodiment of this application, fixed unit is including fixed the setting fixed block on the tool rest body, offer on the fixed block and be used for the screw hole that the fixed column passed, the outside end of fixed column is provided with the external screw thread with screw hole complex.
As another embodiment of the application, the fixing assembly comprises a limiting block, the limiting block is detachably connected with the tool rest body, is arranged at a communication position of the through groove and the placing groove, and forms a space for passing the outer burrs with the placing groove; the limiting block is abutted against the cutting knife and fixes the cutting knife in the placing groove.
As another embodiment of this application, stopper and knife rest body are joint or bolted connection.
As another embodiment of the present application, a plurality of spacers are disposed in the placement groove, and the plurality of spacers are located between the cutting blade and the side wall of the placement groove, and are used for fine-tuning the lateral offset of the cutting blade.
As another embodiment of the present application, the placing groove is obliquely arranged, and the oblique direction of the placing groove is an obtuse angle with the direction of the uncut weld.
The utility model provides a pair of a scraper that is used for high frequency longitudinal welded pipe to get rid of outer burr's beneficial effect lies in: compared with the prior art, the scraping device for removing the outer burrs of the high-frequency straight welded pipe can reduce the situation that the cutting knife scratches the welded pipe according to the up-and-down floating of the outer wall of the welded pipe and the adjustment of the distance between the cutting knife and the outer wall of the welded pipe in the process of cutting the outer burrs of the welded pipe through the matching of the knife rest body, the cutting knife, the roller and the fixed assembly; the cutting knife is fixed on the knife rest body through the fixing assembly, one end of the knife rest body is hinged with the rotating shaft, and in the process that the welded pipe moves along the axis direction, the cutting knife is located at the welding seam of the welded pipe and scrapes off outer burrs on the welding seam; in the process of scraping the outer burrs by the cutting knife, the roller is always in contact with the outer wall of the welded pipe, the welding seam passes through the avoidance groove on the roller, and the outer burrs on the welding seam are cut off by the cutting knife after the welding seam passes through the cutting knife; because the running roller contacts with the outer wall of welded tube all the time, consequently, when the outer wall of welded tube takes place upper and lower float, the knife rest body can rotate around the pin joint to can change the degree of depth that the cutting sword cut, make the cutting sword cut along preset depth of cut, be convenient for strike off the outer burr on the butt weld, reduce the condition to the body scratch.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a scraping device for removing outer burrs of a high-frequency straight welded pipe according to an embodiment of the present invention;
fig. 2 is a schematic view of a tool bit portion of a scraping device for removing outer burrs of a high-frequency straight welded pipe according to an embodiment of the present invention;
fig. 3 is a schematic view of a roller part of a scraping device for removing outer burrs of a high-frequency longitudinal welded pipe according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view illustrating an operating state of a scraping apparatus for removing outer burrs of a high-frequency longitudinal welded pipe according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an operating state of a scraping device for removing outer burrs of a high-frequency longitudinal welded pipe.
In the figure: 1. a holder body; 11. a placement groove; 12. a through groove; 13. a gasket; 14. a hinge slot; 2. a cutting blade; 21. a cutter head; 3. a roller; 31. an avoidance groove; 32. a roll shaft; 33. a fixing plate; 34. connecting grooves; 35. a shaft sleeve; 4. a fixing assembly; 41. fixing a column; 42. a fixed block; 43. a limiting block; 431. chamfering; 5. outer burrs; 6. and (6) welding the tube.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, a material scraping device for removing outer burrs of a high-frequency straight welded pipe according to the present invention will be described. A scraping device for removing outer burrs of a high-frequency straight welded pipe comprises a tool rest body 1, a cutting tool 2, a roller 3 and a fixing assembly 4; one end of the tool rest body 1 is hinged with the rotating shaft and is used for being positioned right above the welding line; the cutting knife 2 is arranged on the knife rest body 1, and one end of the cutting knife 2 extends out of the bottom of the knife rest body 1 and is used for being attached to the outer wall of the welded pipe 6 so as to cut an outer burr 5 on the welded pipe 6; the fixing assembly 4 is arranged on the tool rest body 1 and is used for fixing the cutting tool 2 on the tool rest body 1; the roller 3 is rotatably connected with the tool rest body 1, is positioned on one side of the cutting knife 2, and is used for contacting with the outer wall of the welded pipe 6 so as to enable the cutting knife 2 to cut the preset position of the weld joint; the roller 3 is provided with an avoiding groove 31 for passing the welding seam on the welding pipe 6.
The utility model provides a material scraping device for removing outer burrs of high-frequency longitudinal welded pipe, compared with the prior art, the utility model discloses a material scraping device for removing outer burrs of high-frequency longitudinal welded pipe can float up and down according to the outer wall of welded pipe 6 and adjust the distance between cutting knife 2 and the outer wall of welded pipe 6 during the process of cutting outer burrs 5 of welded pipe through the cooperation of knife rest body 1, cutting knife 2, roller 3 and fixed subassembly 4, and the condition that cutting knife 2 scratches welded pipe 6 is reduced; the cutting knife 2 is fixed on the knife rest body 1 through the fixing component 4, one end of the knife rest body 1 is hinged with the rotating shaft, and in the process that the welded pipe 6 moves along the axis direction, the cutting knife 2 is located at the welding seam of the welded pipe 6 and scrapes off the outer burrs 5 on the welding seam; in the process that the cutting knife 2 scrapes the outer burrs 5, the roller 3 is always in contact with the outer wall of the welded pipe 6, the welding seam passes through the avoidance groove 31 on the roller 3, and the outer burrs 5 on the welding seam are cut off by the cutting knife 2 after the welding seam passes through the cutting knife 2; because the running roller 3 contacts with the outer wall of welded tube 6 all the time, consequently, when the outer wall of welded tube 6 takes place upper and lower float, the knife rest body 1 can rotate around the pin joint to can change the degree of depth that the cutting sword 2 cut, make the cutting sword 2 cut along predetermined depth of cut, be convenient for strike off outer burr 5 on the butt weld, reduce the condition to the body scratch.
As a specific embodiment provided by the utility model, the bottom end of the roller 3 extends out of the bottom end of the tool rest body 1, so that the roller 3 is rotatably connected with the outer wall of the welded pipe 6; a hinge groove 14 is formed at the hinge joint of the tool holder body 1 and the rotating shaft, and the hinge groove 14 is communicated with one end of the tool holder body 1, so that the tool holder body 1 is convenient to disassemble; because the bearing direction of the tool holder body 1 is from the roller 3 to the hinge groove 14 in the working process, although one end of the hinge groove 14 of the tool holder body 1 is an opening, the tool holder body 1 cannot be separated from the rotating shaft in the working process; a cutter placing groove is formed in one side, facing the roller 3, of the cutting cutter 2 and close to the bottom end, a cutter head 21 is arranged in the cutter placing groove, and the cutter head 21 is connected with the cutter placing groove through a bolt; during the working process, the cutter head 21 cuts off the outer burrs 5 on the welded pipe 6, and the cutter head 21 is convenient to replace after the cutter head 21 is worn.
As a specific embodiment of the present invention, please refer to fig. 1 to 5, a placing groove 11 for placing a cutting knife 2 is formed on a knife rest body 1, the placing groove 11 is communicated with the top of the knife rest body 1, and a space for passing an external burr 5 after cutting is left between the placing groove 11 and the cutting knife 2; the cutting knife 2 corresponds to the middle part of the roller 3; the in-process that outer burr 5 on the welding seam was amputated to cutting sword 2 can form banding waste material between the outer burr 5 of amputating, and banding waste material enters into standing groove 11 along the lateral wall of cutting sword 2 in to wear out from the top of standing groove 11, thereby be convenient for derive the outer burr 5 waste material after the cutting is accomplished, reduce the amputated outer burr 5 of piling up between cutting sword 2 and welding seam, the outer burr 5 of amputating on the welding seam of being convenient for cutting sword 2.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, the roller 3 is connected to the holder body 1 through a roller shaft 32, a shaft sleeve 35 is disposed between the roller shaft 32 and the roller 3, the roller shaft 32 is detachably connected to the holder body 1, and the shaft sleeve 35 is a self-lubricating bearing; one end of the roller shaft 32 extends out of the tool rest body 1, the side wall of the extending end is provided with a connecting groove 34, a fixing plate 33 is inserted into the connecting groove 34, and the fixing plate 33 is connected with the tool rest body 1 through a bolt; the fixed plate 33 can reduce circumferential rotation and circumferential play of the roller shaft 32; after the fixed plate 33 is fixedly connected with the tool rest body 1, the fixed plate 33 is placed in the connecting groove 34 of the roller shaft 32, so that the roller shaft 32 does not rotate in the rotating process of the roller 3, and the abrasion of the roller shaft 32 can be reduced; the self-lubricating bearing is adopted between the roller 3 and the roller shaft 32, so that the abrasion of the roller shaft 32 can be reduced, and the pollution to the surface of the pipe body caused by the leakage of lubricating oil under the high-temperature condition can be avoided.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 5, a through groove 12 is formed at the bottom of the holder body 1, the roller 3 is located in the through groove 12, and the through groove 12 is communicated with the placing groove 11; through groove 12 and standing groove 11 intercommunication to after cutting sword 2 excision outer burr 5 on the welding seam, be convenient for increase the space that strip waste material after the excision passes through in the standing groove 11, thereby be convenient for discharge the waste material of having amputated, be convenient for reduce the waste material of piling up between cutting sword 2 and welding seam.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, the fixing assembly 4 includes a fixing column 41 and a fixing unit; the fixing column 41 is inserted into the tool rest body 1, and the insertion end of the fixing column is abutted against the cutting blade 2, so that the cutting blade 2 is abutted against the placing groove 11; the fixing unit is arranged on the tool rest body 1 and is used for fixing the fixing column 41 on the tool rest body 1; offer the spliced eye that is used for fixed column 41 to peg graft on the tool holder body 1, spliced eye and standing groove 11 intercommunication, fixed column 41 and cutting sword 2 butt after the spliced eye is pegged graft to fixed column 41 is fixed on tool holder body 1 through fixed unit, thereby is convenient for fix cutting sword 2 on tool holder body 1, and the outer burr 5 on the butt weld of cutting sword 2 of being convenient for is amputated.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, the fixing unit includes a fixing block 42 fixedly disposed on the tool rest body 1, a threaded hole for the fixing column 41 to pass through is disposed on the fixing block 42, and an external thread engaged with the threaded hole is disposed at an outer side end of the fixing column 41; the fixing column 41 is connected with the fixing block 42 through threads, so that the connection between the fixing column 41 and the tool rest body 1 is facilitated to be strengthened, meanwhile, the fixing column 41 can be facilitated to enable the cutting blade 2 to abut against the placing groove 11, and therefore the cutting blade 2 can cut off the outer burrs 5 on the welding seams conveniently.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, the fixing assembly 4 includes a limiting block 43, the limiting block 43 is detachably connected to the holder body 1, and is disposed at a communication position between the through groove 12 and the placing groove 11, and a space for passing the outer burr 5 is formed between the limiting block and the placing groove 11; the limiting block 43 is abutted against the cutting blade 2 and fixes the cutting blade 2 in the placing groove 11; the top end of the through groove 12 is lower than the top end of the placing groove 11, the two limiting blocks 43 (not limited to the two limiting blocks 43) are arranged at the top end of the through groove 12, the two limiting blocks 43 are abutted to the cutting blade 2 and fix the cutting blade 2 in the placing groove 11, and a space for allowing strip-shaped waste to pass through is formed between the two limiting blocks 43; in the cutting process of the cutting blade 2, force along the direction of a welding seam can be provided for the cutting blade 2, the sliding of the cutting blade 2 along the direction of the welding seam due to the fact that the placing groove 11 is communicated with the through groove 12 in the cutting process of the cutting blade 2 is reduced, and the cutting blade 2 can conveniently cut off the outer burrs 5 on the welding seam; the bottom end of the limiting block 43 is provided with a chamfer 431 for guiding the strip-shaped waste material near the placing groove 11, and when the strip-shaped waste material contacts the limiting block 43, the chamfer 431 on the limiting block 43 can guide the strip-shaped waste material, so that the strip-shaped waste material can be discharged along the top end of the placing groove 11 conveniently.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, the limiting block 43 is connected to the holder body 1 by a snap or a bolt, and the bolt connection is taken as an example in this embodiment for description; threaded holes are formed in the limiting block 43 and the cutter frame body 1, threaded holes in the limiting block 43 are aligned with threaded holes in the cutter frame body 1, the limiting block 43 is fixed on the cutter frame body 1 through bolts, and therefore the limiting block 43 can fix the cutting cutter 2 in the placing groove 11 conveniently.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, a plurality of spacers 13 are disposed in the placing groove 11, the plurality of spacers 13 are all located between the cutting blade 2 and the side wall of the placing groove 11, and the plurality of spacers 13 are used for fine-tuning the lateral offset of the cutting blade 2; the shims 13 are positioned on a plane perpendicular to the cutting face of the cutting blade 2, and the width of adjustment can be increased by the number of the shims 13 placed, thereby facilitating adjustment of the lateral offset of the cutting blade 2; the cutting blade 2 abuts against the shim 13 by the fixing post 41.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 5, the placing groove 11 is disposed obliquely, and the oblique direction of the placing groove 11 and the direction of the uncut welding seam are obtuse angles; the placing groove 11 is obliquely arranged, the cutting blade 2 is placed in the placing groove 11, so that the inclination angle of the cutting blade 2 is equal to that of the placing groove 11, after the cutting blade 2 cuts off the outer burrs 5 on the weld joint, strip-shaped waste materials can be discharged from the top end of the placing groove 11 along the cutting blade 2, and the waste materials accumulated between the cutting blade 2 and the weld joint are reduced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A scraping device for removing outer burrs of a high-frequency straight welded pipe is characterized by comprising:
one end of the tool rest body (1) is hinged with the rotating shaft and is positioned right above the welding line;
the cutting knife (2) is arranged on the knife rest body (1), and one end of the cutting knife extends out of the bottom of the knife rest body (1) and is used for being attached to the outer wall of the welded pipe (6) so as to cut the outer burrs (5) on the welded pipe (6);
the fixing assembly (4) is arranged on the tool rest body (1) and is used for fixing the cutting tool (2) on the tool rest body (1); and
the roller (3) is rotatably connected with the tool rest body (1), is positioned on one side of the cutting knife (2), and is used for contacting with the outer wall of the welded pipe (6) so as to enable the cutting knife (2) to cut the preset position of the butt weld; and an avoiding groove (31) for allowing a welding seam on the welding pipe (6) to pass through is formed in the roller (3).
2. The scraping device for removing the outer burrs of the high-frequency straight welded pipe according to claim 1, wherein a placing groove (11) for placing the cutting blade (2) is formed in the tool holder body (1), and the placing groove (11) is communicated with the top of the tool holder body (1) and is provided with a space for the cut outer burrs (5) to pass through between the placing groove and the cutting blade (2).
3. The scraping device for removing the outer burrs of the high-frequency straight welded pipe according to claim 1, wherein the roller (3) is connected with the cutter holder body (1) through a roller shaft (32), a shaft sleeve (35) is arranged between the roller shaft (32) and the roller (3), and the roller shaft (32) is detachably connected with the cutter holder body (1).
4. The scraping device for removing the outer burrs of the high-frequency straight welded pipe according to claim 2, wherein the bottom of the tool holder body (1) is provided with a through groove (12), the roller (3) is positioned in the through groove (12), and the through groove (12) is communicated with the placing groove (11).
5. The scraping apparatus for high-frequency butt welded pipe outer burr removing according to claim 2, characterized in that said fixing unit (4) comprises:
the fixing column (41) is inserted into the tool rest body (1), the insertion end of the fixing column is abutted against the cutting knife (2), and the fixing column is used for abutting the cutting knife (2) in the placing groove (11); and
the fixing unit is arranged on the tool rest body (1) and used for fixing the fixing column (41) on the tool rest body (1).
6. The scraping device for removing the outer burrs of the high-frequency straight welded pipe according to claim 5, wherein the fixing unit comprises a fixing block (42) fixedly arranged on the tool rest body (1), a threaded hole for the fixing column (41) to pass through is formed in the fixing block (42), and an external thread matched with the threaded hole is arranged at the outer side end of the fixing column (41).
7. The scraping apparatus for high-frequency butt welded pipe outer burr removing according to claim 4, characterized in that said fixing member (4) comprises:
the limiting block (43) is detachably connected with the tool rest body (1), is arranged at the communication position of the through groove (12) and the placing groove (11), and forms a space for the outer burrs (5) to pass through with the placing groove (11); the limiting block (43) is abutted against the cutting knife (2) and fixes the cutting knife (2) in the placing groove (11).
8. The scraping device for removing the outer burrs of the high-frequency straight welded pipe according to claim 7, wherein the limiting block (43) is connected with the tool holder body (1) in a clamping or bolt mode.
9. The scraping apparatus for deburring outer burrs of high-frequency straight welded pipes according to claim 2, wherein a plurality of spacers (13) are provided in the placing groove (11), the plurality of spacers (13) are located between the cutting blade (2) and the side wall of the placing groove (11), and the plurality of spacers (13) are used for fine adjustment of the lateral offset of the cutting blade (2).
10. The scraping apparatus for high-frequency straight welded pipe to remove outer burrs according to claim 2, wherein the placing groove (11) is provided obliquely, and the oblique direction of the placing groove (11) is an obtuse angle with the direction of the uncut weld bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922005697.2U CN211218991U (en) | 2019-11-19 | 2019-11-19 | Material scraping device for removing outer burrs of high-frequency straight welded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922005697.2U CN211218991U (en) | 2019-11-19 | 2019-11-19 | Material scraping device for removing outer burrs of high-frequency straight welded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211218991U true CN211218991U (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922005697.2U Active CN211218991U (en) | 2019-11-19 | 2019-11-19 | Material scraping device for removing outer burrs of high-frequency straight welded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211218991U (en) |
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2019
- 2019-11-19 CN CN201922005697.2U patent/CN211218991U/en active Active
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Effective date of registration: 20200921 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee after: China oil steel tube Co.,Ltd. Yangzhou branch Address before: 300457 No. second, No. 83, economic and Technological Development Zone, Binhai New Area, Tianjin Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Patentee before: China oil steel tube Co.,Ltd. Yangzhou branch |