CN218836337U - Online steel pipe cutting machine - Google Patents
Online steel pipe cutting machine Download PDFInfo
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- CN218836337U CN218836337U CN202320010112.XU CN202320010112U CN218836337U CN 218836337 U CN218836337 U CN 218836337U CN 202320010112 U CN202320010112 U CN 202320010112U CN 218836337 U CN218836337 U CN 218836337U
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- 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
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Abstract
The utility model discloses an online steel pipe cutting machine, relating to the design field of pipe cutting machines, comprising a cutting machine case, wherein four ends of the bottom side of the cutting machine case are all provided with an adjusting floor plate; linear guide rails are fixedly arranged at the front edge and the rear edge of the upper side of the cutting case, and a cutting platform is arranged at the upper side of the cutting case; a cutting head and a steel pipe clamping seat are fixedly arranged on the cutting platform; a return cylinder is fixedly installed at the right end of the upper side of the cutting case, and a telescopic rod of the return cylinder drives the cutting platform to slide left and right on the two linear guide rails; the left side fixed mounting of cutting machine case has intelligent control device, and intelligent control device one-to-one is through electric connection drive cutting head, steel pipe holder and the cylinder that returns to journey and is carried out work. The utility model discloses a nonrust steel pipe's continuous online pipe cutting processing can satisfy the requirement that nonrust steel pipe cuts nozzle stub and long tube online in succession, causes the steel pipe loss when reducing the pipe cutting adjustment, reduces the labour, improves production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the pipe cutting machine design and specifically relates to an online steel pipe cutting machine is related to.
Background
With the development of the industrial modernization process, in the stainless steel pipe industry, the on-site pipe manufacturing mode is on-line continuous forming, continuous welding and continuous pipe discharging, and how to improve the on-line continuous pipe cutting efficiency and improve the pipe cutting quality is also a technical breakthrough point of the technology at the present stage.
The stainless steel pipe cutting means in the industry has a lot, and the grinding wheel pipe cutting machine is usually adopted, so that the structure is rough, the operation is inconvenient, the fixed length is not accurate, the cutting noise is large, and cutting chips splash everywhere, thereby causing pollution and health influence to the production environment and personnel. The technical requirements of accurate sizing, smooth port, no chip, no burr and the like cannot be met, so that other mechanical equipment and different processes are added for secondary processing, the production efficiency is low, and the economic loss cannot meet the market requirement.
In addition, when the pipe cutting operation, need to with in the steel pipe centre gripping pipe cutting machine, an automatic pipe cutting machine protection equipment exists, application number is 202021327574.7, and the tight steel pipe of mainly using buffer spring and clamp plate clamp in this patent is cut again, the location when guaranteeing to cut the pipe, has saved the loaded down with trivial details step of artifical fixed, but the position of its pipe cutting machine generally can not remove, leads to the online pipe cutting that can't carry out simultaneously in the in-process that the steel pipe was carried, and its pipe cutting efficiency is not high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical solution which can solve the above problems for overcoming the defects of the prior art.
An online steel pipe cutting machine comprises a cutting machine case, wherein four ends of the bottom side of the cutting machine case are respectively provided with an adjusting floor plate;
linear guide rails are fixedly arranged at the front edge and the rear edge of the upper side of the cutting case, and a cutting platform is arranged at the upper side of the cutting case;
a cutting head and a steel pipe clamping seat are fixedly arranged on the cutting platform;
a return cylinder is fixedly arranged at the right end of the upper side of the cutting case, and a telescopic rod of the return cylinder drives the cutting platform to slide left and right on the two linear guide rails;
the left side fixed mounting of cutting machine case has intelligent control device, and intelligent control device one-to-one is through electric connection drive cutting head, steel pipe holder and the cylinder that returns to journey and is carried out work.
As a further aspect of the present invention: the cutting head comprises a head seat, an undercut servo motor, a tooth piece transmission box, a cutting motor and a tooth piece, wherein the head seat is fixedly installed on the cutting platform, the tooth piece transmission box is installed on the front side of the head seat in a sliding fit mode, the undercut servo motor drives the tooth piece transmission box to move up and down, the cutting motor is fixedly installed at the input shaft of the tooth piece transmission box, and the tooth piece is fixedly installed at the output shaft of the tooth piece transmission box.
As a further aspect of the present invention: the vertical setting of tooth piece, one side fixed mounting that the tooth piece transmission case is close to the tooth piece has the spark-proof baffle, and tooth piece clearance fit sets up the inboard at the spark-proof baffle.
As a further aspect of the present invention: the steel pipe holder includes fixing base, anchor clamps base and clamping cylinder, and the fixing base is provided with two, and two equal fixed mounting of fixing base have a slide rail between two fixing bases, and the anchor clamps base is provided with two, and mutual front and back symmetry sets up between two anchor clamps bases, and clamping cylinder fixed mounting is on cutting platform, and the anchor clamps base of clamping cylinder drive front side is along sliding on the slide rail.
As a further aspect of the present invention: the equal fixed mounting in inboard of two anchor clamps bases has semicircle steel pipe anchor clamps, and the middle part shaping of semicircle steel pipe anchor clamps upside has the grooving, and the upside shaping of anchor clamps base has clearance groove, and the setting of grooving and clearance groove is inserted in the tooth clearance fit.
As a further aspect of the present invention: a hydraulic station is fixedly installed on the cutting machine case, a hydraulic motor and a hydraulic valve are fixedly installed on the hydraulic station, and the hydraulic motor drives the clamping oil cylinder to work through the hydraulic valve.
As a further aspect of the present invention: the intelligent control device is electrically connected with a touch screen, a control button, a PLC and a servo controller.
As a further aspect of the present invention: the upper side fixed mounting who adjusts the base anchor has the bolt, and two lock nut are installed in the screw fit on the bolt, and the equal fixed mounting in four ends of cutting machine case bottom side has the backup pad, and the shaping has the via hole in the backup pad, and the bolt clearance fit is installed in the via hole, and two lock nut locking are in the upper and lower both sides of backup pad.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the return cylinder is used for driving the cutting platform to slide left and right on the two linear guide rails, so that the cutting platform moves along with the stainless steel pipe in production, and the online pipe cutting operation is realized;
2. according to the required length of the stainless steel pipe to a certain length, a semicircular steel pipe clamp which is the same as the diameter of the stainless steel pipe is arranged on a clamp base, and the stainless steel pipe is clamped tightly to drive a cutting platform to be matched with the speed of the stainless steel pipe, so that the stainless steel pipe cannot slide during cutting, and the accurate cutting size is ensured.
3. The undercutting servo motor controls the tooth sheet to cut the stainless steel pipe from top to bottom, and the cutting speed during undercutting can be automatically adjusted according to the size of the stainless steel pipe and the area size of the stainless steel pipe in contact during cutting, so that the tooth sheet works under the same cutting force, and the service life of the tooth sheet is prolonged.
4. Through the intelligent operation of touch-sensitive screen, utilize PLC's programmability to monitor cutting state, the nonrust steel pipe to required cutting carries out a screen multi-control, carry out once setting back automatic production according to length, quantity, the batch of nonrust steel pipe, the quality in having ensured nonrust steel pipe branch and cutting, the production labour has been reduced, the steel pipe cutting precision has been improved, the cutting consumptive material of finished product stainless steel pipe has been reduced, production efficiency and productivity have been promoted, the cost is reduced, do benefit to extensive popularization and application.
To sum up, the utility model discloses a continuous online pipe cutting processing of nonrust steel pipe has realized quick, steady, accurate scale, down technical guarantee such as cutting speed is adjustable, the port levels, no burr, can satisfy the continuous requirement of online pipe cutting pipe and long tube of nonrust steel pipe simultaneously, causes the steel pipe loss when reducing the pipe cutting adjustment, reduces the labour, improves production efficiency.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic front view of the present invention;
fig. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic structural view of a steel pipe holder;
fig. 5 is a schematic structural view of the adjusting floor board.
Shown in the figure: 1. cutting the case; 2. adjusting the base anchor; 3. a linear guide rail; 4. cutting the platform; 5. an intelligent control device; 6. a hydraulic station; 7. a return cylinder; 8. a cutting head; 81. a headstock; 82. an undercut servo motor; 83. a tooth plate transmission case; 84. cutting the motor; 85. a toothed sheet; 9. a steel pipe clamping seat; 91. a fixed seat; 92. a clamp base; 93. a slide rail; 94. a semicircular steel pipe clamp; 95. clamping the oil cylinder; 10. a touch screen; 11. a hydraulic motor; 12. a hydraulic valve; 13. a spark-proof baffle plate; 14. grooving; 15. an empty avoiding groove; 16. a bolt; 17. a support plate; 18. a via hole; 19. and locking the nut.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
As shown in fig. 1-5, the on-line steel pipe cutting machine of the present invention comprises a cutting machine case 1, four ends of the bottom side of the cutting machine case 1 are all installed with adjusting base plates 2;
linear guide rails 3 are fixedly arranged at the front edge and the rear edge of the upper side of the cutting case 1, and a cutting platform 4 is arranged at the upper side of the cutting case 1;
a cutting head 8 and a steel pipe clamping seat 9 are fixedly arranged on the cutting platform 4;
a return cylinder 7 is fixedly installed at the right end of the upper side of the cutting case 1, and a telescopic rod of the return cylinder 7 drives the cutting platform 4 to slide left and right on the two linear guide rails 3;
the left side of the cutting machine case 1 is fixedly provided with an intelligent control device 5, and the intelligent control devices 5 are electrically connected with a driving cutting head 8, a steel pipe clamping seat 9 and a return cylinder 7 one by one to work;
the cutting platform 4 on the cutting machine case 1 is aligned to the stainless steel pipe by adjusting and adjusting the base plate 2, the axes of the steel pipe clamp seat 9 and the stainless steel pipe are overlapped, the linear guide rail 3 can ensure the stable sliding of the cutting platform 4, and after the stainless steel pipe is clamped by the steel pipe clamp seat 9, the cutting head 8 vertically cuts downwards, so that the smoothness of the pipe orifice is ensured; the cylinder 7 that returns journey can drive cutting platform 4 and remove, let cutting head 8 and steel pipe holder 9 follow stainless steel pipe and together remove, realize the effect that slides with fast, can carry out the operation of online pipe cutting at the in-process that stainless steel pipe was carried out, cut the back of managing, stainless steel pipe holder 9 loosens stainless steel tubulation, rethread returns journey cylinder 7 and realizes resetting of cutting platform 4, and then returns the original point and makes things convenient for one section stainless steel tubulation under the cutting.
Because the cutting platform 4 slides at the same speed as the stainless steel pipe, the stainless steel pipe cannot slide during cutting, the cutting size is ensured to be accurate, the smoothness of the cut is high, and the technical requirements of accurate sizing, smooth end opening, no chip, no burr and the like are met.
As a further aspect of the present invention: the cutting head 8 comprises a head seat 81, an undercut servo motor 82, a tooth piece transmission box 83, a cutting motor 84 and a tooth piece 85, the head seat 81 is fixedly arranged on the cutting platform 4, the tooth piece transmission box 83 is arranged on the front side of the head seat 81 in a sliding fit manner, the undercut servo motor 82 drives the tooth piece transmission box 83 to move up and down, the cutting motor 84 is fixedly arranged at an input shaft of the tooth piece transmission box 83, and the tooth piece 85 is fixedly arranged at an output shaft of the tooth piece transmission box 83; when the pipe cutting operation, start cutting motor 84, cutting motor 84 drives the high-speed rotation of tine 85 through tine transmission case 83, undercut servo motor 82 drives the perpendicular decline of tine transmission case 83, let tine 85 cut to the stainless steel pipe perpendicularly on, cut the stainless steel tubulation from top to bottom through undercut servo motor 82 control tine 85, can be according to the size of stainless steel tubulation, the area size of contact stainless steel tubulation during the cutting, cutting rate when automatically regulated undercuts, make tine 85 be in and carry out work under the same cutting force, the life of tine 85 has been prolonged.
As a further aspect of the present invention: the toothed sheet 85 is vertically arranged, one side of the toothed sheet transmission box 83, close to the toothed sheet 85, is fixedly provided with the sparkproof baffle 13, and the toothed sheet 85 is arranged on the inner side of the sparkproof baffle 13 in a clearance fit manner; the spark-proof baffle 13 can effectively block spark sputtering.
As a further aspect of the present invention: the steel pipe clamping seat 9 comprises two fixing seats 91, two clamp bases 92 and two clamping oil cylinders 95, wherein the two fixing seats 91 are fixedly arranged on the cutting platform 4, a sliding rail 93 is fixedly arranged between the two fixing seats 91, the two clamp bases 92 are arranged symmetrically in the front-back direction, the two clamp bases 92 are fixedly arranged on the cutting platform 4, and the clamping oil cylinders 95 drive the clamp bases 92 on the front side to slide on the sliding rail 93; the clamping oil cylinder 95 drives the clamp base 92 to clamp the stainless steel pipes in the machining process, the cutting platform 4 can be conveyed and slid at the same speed as the stainless steel pipes, the stability of the stainless steel pipes during pipe cutting is guaranteed, and after the pipe cutting is completed, the clamping oil cylinder 95 loosens the stainless steel pipes to reset.
As a further aspect of the present invention: the inner sides of the two clamp bases 92 are fixedly provided with semicircular steel pipe clamps 94, the middle parts of the upper sides of the semicircular steel pipe clamps 94 are provided with cutting grooves 14, the upper sides of the clamp bases 92 are provided with clearance grooves 15, and the tooth plates 85 are inserted into the cutting grooves 14 and the clearance grooves 15 in a clearance fit manner; clamp base 92 can press from both sides steady stainless steel tubulation through semicircular steel tube clamp 94, and during the pipe cutting operation, the perpendicular undercut of pick 85, pick 85 can the clearance fit insert grooving 14 and keep away the dead slot 15 this moment in, avoids cutting semi-circular steel tube clamp 94 and clamp base 92, and positioning accuracy is high, can reduce the spark sputtering when cutting through grooving 14 and keep away the dead slot 15 simultaneously.
After the intelligent control device 5 sends an instruction, the clamping oil cylinder 95 pushes the clamp base 92 to enable the semicircular steel pipe clamp 94 to clamp a stainless steel pipe in production, the cutting platform 4 slides at the same speed as the stainless steel pipe, meanwhile, the cutting motor 84 drives the tooth piece 85 to rotate through the tooth piece transmission box 83, the undercutting servo motor 82 drives the rotating tooth piece 85 to undercut, after pipe cutting is completed, the tooth piece 85 lifts up, the clamping oil cylinder 95 loosens and clamps, and the return air cylinder 7 pushes the cutting platform 4 to return to the original point.
As a further aspect of the present invention: a hydraulic station 6 is fixedly installed on the cutting machine case 1, a hydraulic motor 11 and a hydraulic valve 12 are fixedly installed on the hydraulic station 6, and the hydraulic motor 11 drives a clamping oil cylinder 95 to work through the hydraulic valve 12; after the intelligent control device 5 sends out an instruction, the hydraulic motor 11 performs pressurization work, and controls input and output through the hydraulic valve 12, so that the clamping oil cylinder 95 is driven to stretch out and draw back, stable clamping of the stainless steel pipe is guaranteed, and the cutting platform 4 can slide at the same speed as the stainless steel pipe.
As a further aspect of the present invention: the intelligent control device 5 is electrically connected with a touch screen 10, a control button, a PLC and a servo controller; fuse touch-sensitive screen 10, servo controller mutually through the PLC programming, gather the encoder data of installing on stainless steel tubulation equipment, can set up the length of cutting the pipe, quantity, batch, the rate of good products, defective products consumptive material condition can be cut the steel pipe under the big or small automatic adjustment of stainless steel tubulation, makes tooth 85 reach even smear metal power, realizes intelligent control.
Touch-sensitive screen 10 realizes intelligent operation, programmability through PLC monitors the cutting state, the nonrust steel pipe to required cutting carries out a screen multi-control, length, quantity, batch according to the stainless steel tubulation carry out once set up back automatic production, the quality in the nonrust steel pipe slitting has been ensured, the production labour has been reduced, the precision of nonrust steel pipe cutting has been improved, the cutting consumptive material of finished product stainless steel tubulation has been reduced, production efficiency and productivity have been promoted, the cost is reduced, do benefit to extensive popularization and application.
In the current technology level, in each field of the real society, the technology of performing PLC programmed control driving through the intelligent control device 5 is already mature, and it does not belong to the protection scope of the present technical solution, and therefore, no detailed description is given to the above structure.
As a further aspect of the present invention: the upper side of the adjusting floor plate 2 is fixedly provided with a bolt 16, the bolt 16 is spirally matched and provided with two locking nuts 19, four ends of the bottom side of the cutting case 1 are fixedly provided with supporting plates 17, through holes 18 are formed in the supporting plates 17, the bolt 16 is arranged in the through holes 18 in a clearance fit manner, and the two locking nuts 19 are locked on the upper side and the lower side of the supporting plates 17; can be convenient in the altitude mixture control to each regulation footing board 2, let the axis that lets steel pipe holder 9 and stainless steel pipe set up coincide each other, guarantee equipment steady operation.
The utility model discloses a data acquisition, press from both sides tightly, slide, surely manage, realized nonrust steel pipe continuous production, cut the transformation of surely managing in succession on line, control through intelligent system 5, realized that length, nozzle stub can cut the pipe on line simultaneously, reduced the wearing and tearing of pick 85, improved production efficiency, reduced the labour, improved the productivity.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (8)
1. An online steel pipe cutting machine comprises a cutting machine case, wherein four ends of the bottom side of the cutting machine case are respectively provided with an adjusting floor plate;
the method is characterized in that: linear guide rails are fixedly arranged at the front edge and the rear edge of the upper side of the cutting case, and a cutting platform is arranged at the upper side of the cutting case;
a cutting head and a steel pipe clamping seat are fixedly arranged on the cutting platform;
a return cylinder is fixedly arranged at the right end of the upper side of the cutting case, and a telescopic rod of the return cylinder drives the cutting platform to slide left and right on the two linear guide rails;
the left side fixed mounting of cutting machine case has intelligent control device, and intelligent control device one-to-one is through electric connection drive cutting head, steel pipe holder and the cylinder that returns to journey and is carried out work.
2. The on-line steel pipe cutting machine of claim 1, wherein: the cutting head comprises a head seat, an undercut servo motor, a tooth piece transmission box, a cutting motor and a tooth piece, wherein the head seat is fixedly installed on the cutting platform, the tooth piece transmission box is installed on the front side of the head seat in a sliding fit mode, the undercut servo motor drives the tooth piece transmission box to move up and down, the cutting motor is fixedly installed at the input shaft of the tooth piece transmission box, and the tooth piece is fixedly installed at the output shaft of the tooth piece transmission box.
3. The on-line steel pipe cutting machine of claim 2, wherein: the vertical setting of tooth piece, one side fixed mounting that the tooth piece transmission case is close to the tooth piece has the spark-proof baffle, and tooth piece clearance fit sets up the inboard at the spark-proof baffle.
4. An in-line steel pipe cutting machine as claimed in any one of claims 1 to 3 wherein: the steel pipe holder includes fixing base, anchor clamps base and clamping cylinder, and the fixing base is provided with two, and two equal fixed mounting of fixing base have a slide rail between two fixing bases, and the anchor clamps base is provided with two, and mutual front and back symmetry sets up between two anchor clamps bases, and clamping cylinder fixed mounting is on cutting platform, and the anchor clamps base of clamping cylinder drive front side is along sliding on the slide rail.
5. The online steel pipe cutting machine according to claim 4, wherein: the equal fixed mounting in inboard of two anchor clamps bases has semicircle steel pipe anchor clamps, and the middle part shaping of semicircle steel pipe anchor clamps upside has the grooving, and the upside shaping of anchor clamps base has clearance groove, and the setting of grooving and clearance groove is inserted in the tooth clearance fit.
6. The on-line steel pipe cutting machine of claim 4, wherein: a hydraulic station is fixedly installed on the cutting machine case, a hydraulic motor and a hydraulic valve are fixedly installed on the hydraulic station, and the hydraulic motor drives the clamping oil cylinder to work through the hydraulic valve.
7. The on-line steel pipe cutting machine of claim 1, wherein: the intelligent control device is electrically connected with a touch screen, a control button, a PLC and a servo controller.
8. The on-line steel pipe cutting machine of claim 1, wherein: the upper side fixed mounting who adjusts the footing board has the bolt, and two lock nut are installed in the screw fit on the bolt, and the equal fixed mounting in four ends of cutting machine case bottom side has the backup pad, and the shaping has the via hole in the backup pad, and the bolt clearance fit is installed in the via hole, and two lock nut locks in the upper and lower both sides of backup pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320010112.XU CN218836337U (en) | 2023-01-04 | 2023-01-04 | Online steel pipe cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320010112.XU CN218836337U (en) | 2023-01-04 | 2023-01-04 | Online steel pipe cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218836337U true CN218836337U (en) | 2023-04-11 |
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ID=87282870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320010112.XU Active CN218836337U (en) | 2023-01-04 | 2023-01-04 | Online steel pipe cutting machine |
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| Country | Link |
|---|---|
| CN (1) | CN218836337U (en) |
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2023
- 2023-01-04 CN CN202320010112.XU patent/CN218836337U/en active Active
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