CN104843474B - A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism - Google Patents

A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism Download PDF

Info

Publication number
CN104843474B
CN104843474B CN201510246135.0A CN201510246135A CN104843474B CN 104843474 B CN104843474 B CN 104843474B CN 201510246135 A CN201510246135 A CN 201510246135A CN 104843474 B CN104843474 B CN 104843474B
Authority
CN
China
Prior art keywords
steel pipe
travelling platform
sloping
skids
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510246135.0A
Other languages
Chinese (zh)
Other versions
CN104843474A (en
Inventor
韩保材
房程林
房英杰
汤跃先
李钢
汤盛先
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North Steel Industry (yingkou) Co Ltd
Original Assignee
North Steel Industry (yingkou) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by North Steel Industry (yingkou) Co Ltd filed Critical North Steel Industry (yingkou) Co Ltd
Priority to CN201510246135.0A priority Critical patent/CN104843474B/en
Publication of CN104843474A publication Critical patent/CN104843474A/en
Application granted granted Critical
Publication of CN104843474B publication Critical patent/CN104843474B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

The present invention relates to a kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism, travelling platform running mechanism is connected by PLC with laser range sensor, laser range sensor gathers most proximal end steel pipe point distance measurement distance on 1.5 ° of sloping skids, transfers data to PLC;PLC calculates comb safe distance, controls movement of the travelling platform to 1.5 ° of sloping skid directions, and steel pipe is being discharged at most proximal end steel pipe safe distance on 1.5 ° of sloping skids.Compared with prior art, the invention has the beneficial effects as follows:The steel pipe discharging of different tube diameters, different pipe ranges is can adapt to, the safe distance arranged steel pipe distance and calculated follow-up comb is determined by laser range sensor, automatically control travelling platform and steel pipe is discharged in optimum position;Steel pipe comb effect is good, and during rolling, impulsive force is little, and production process is safe and reliable, and once storage steel pipe is more, and accurately, production efficiency is high for travelling platform shift action.

Description

A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism
Technical field
The present invention relates to straight-line joint submerged arc welding tube production field, more particularly to a kind of straight-line joint submerged arc welding tube discharge control method and Drawing mechanism.
Background technology
Straight-line joint submerged arc welding tube adopt JCOE steel pipe formings, a weld seam, submerged-arc welding process, specification limit from 325mm~ 1626mm.The production technology of straight-line joint submerged arc welding tube flexibly, any specification that can be in production range and wall thickness.Although production efficiency compared with High-frequency straight seam Coiling Welded Pipe, spiral welded steel pipe are low, but its sharpest edges is that and can produce high frequency steel pipe, spiral steel pipe, very To the not fertile specifications and models of seamless steel pipe.
In recent years, straight-line joint submerged arc welding tube production line tube product tends to Large Diameter Pipeline, heavy wall, Hi-grade steel, and steel pipe is most greatly enhanced Degree also increases to 18.4m by original 12.5m.The discharge method that pipe device adds sloping skid is turned over for traditional tubulation production line is adopted, Cannot adapt to produce needs, mainly due to steel pipe weight weight, sloping skid inclination angle hour, steel pipe roll not in place, impact row Pipe effect, the steel pipe negligible amounts of the last storage of sloping skid, increased the man-hour of batch turning back and forth, reduces production efficiency;Such as Fruit increase sloping skid inclination angle, steel pipe impulsive force when rolling are big, easily collide with each other and cause to damage.
The content of the invention
The invention provides a kind of straight-line joint submerged arc welding tube discharge control method, different tube diameters, different pipe ranges are can adapt to Steel pipe discharges, and the safe distance arranged steel pipe distance and calculated follow-up comb is determined by laser range sensor, is controlled automatically Travelling platform processed discharges steel pipe in optimum position;Steel pipe comb effect is good, and during rolling, impulsive force is little, and production process is safe and reliable, and one Secondary storage steel pipe is more, and accurately, production efficiency is high for travelling platform shift action;Invention also provides for realizing going out for this method Material device.
In order to achieve the above object, the present invention employs the following technical solutions realization:
A kind of straight-line joint submerged arc welding tube discharge control method, comprises the steps:
1) 1.5 ° of sloping skids and travelling platform guide rail are set in steel pipe discharging section roller-way side, arrange at the top of 1.5 ° of sloping skids and swash Ligh-ranging sensor, adjusts its radiating laser beams angle parallel with 1.5 ° of sloping skid upper surfaces;
2) travelling platform running mechanism is connected by PLC with laser range sensor, laser range sensor collection On 1.5 ° of sloping skids, most proximal end steel pipe point distance measurement distance, transfers data to PLC;
3) PLC programming, calculates the comb safe distance of the laser ranging point on steel pipe, calculate comb safety away from From when, diameter of steel tube is defaulted as ¢ 1626, i.e., carry out substitution calculating with current production maximum specification diameter of steel tube;Swash on steel pipe Ligh-ranging point to heel row steel pipe outermost end distance is S, and comb safe distance is 1.5S;Laser range sensor is to most proximal end steel pipe Upper laser ranging point distance is d, and the vertical range after conversion is D=dcos1.5 °;Travelling platform initial position is away from laser ranging Sensor distance is L, then travelling platform needs the displacement to be:D+L-1.5S;
4) it is traversing to reach in discharging section roller-way, steel pipe is lifted by lifting device and initial position is returned to, PLC Control displacement of the travelling platform to 1.5 ° of sloping skid directions, is discharging at most proximal end steel pipe safe distance on 1.5 ° of sloping skids Steel pipe;
5) step 2) -4) repeat, steel pipe is arranged in order on 1.5 ° of sloping skids, on 1.5 ° of sloping skids, steel pipe is booked After transport, repeat step 2) -4), until steel pipe discharging complete.
For realizing a kind of drawing mechanism of straight-line joint submerged arc welding tube discharge control method, including travelling platform, travelling platform guide rail, 1.5 ° of sloping skids, laser range sensor and PLCs, the travelling platform guide rail and 1.5 ° of sloping skids are laid in steel pipe discharging Section roller-way side, its cloth set direction are vertical with steel pipe market direction;Laser range sensor is installed in 1.5 ° of sloping skids near horizontal One of bench top of car is moved, laser range sensor is connected by PLC with travelling platform running mechanism, traversing Car is provided with lifting device.
1.5 ° of sloping skids are made up of multiple uniform parallel stands, and which is laid width and is mutually fitted with steel pipe maximum length Should;Travelling platform guide rail is laid in the middle part of 1.5 ° of sloping skids.
More than roller-way to stand outermost distance, travelling platform can be moved the travelling platform guide rail laying length along travelling platform guide rail Move to roller-way, and initial position is limited by stopping means, initial position is located on the outside of 1.5 ° of sloping skids at roller-way.
The radiating laser beams angle of the laser range sensor is parallel with 1.5 ° of sloping skid upper surfaces.
Compared with prior art, the invention has the beneficial effects as follows:
1) different tube diameters, the steel pipe of different pipe ranges be can adapt to safely and fast to discharge, existing straight-line joint submerged arc welding tube life is met The discharging of producing line is required;
2) safe distance arranged steel pipe distance and calculated follow-up comb is determined by laser range sensor, is controlled automatically Travelling platform processed discharges steel pipe in optimum position;Steel pipe is close to and is arranged in order, and comb effect is good, and 1.5 ° of sloping skids once store steel Guan Duo;
3) when rolling during comb, impulsive force is little, and production process is safe and reliable, to steel pipe not damaged;
4), by PLC control, stroke is accurate, it is not necessary to manually adjust for travelling platform shift action, and production efficiency is high.
Description of the drawings
Fig. 1 is the structural representation of device of the present invention.
Fig. 2 is travelling platform displacement Computing Principle schematic diagram of the present invention.
In figure:1. 6. Laser Measuring of 5.1.5 ° of sloping skid of 2. discharging section roller-way of steel pipe, 3. travelling platform guide rail, 4. travelling platform Pass away from laser ranging away from 7. lifting device M. travelling platform initial position N. laser range sensors installation sites P. of sensor Next steel pipe outermost points to be discharged of laser ranging point O. on sensor most proximal end steel pipe
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described further:
A kind of straight-line joint submerged arc welding tube discharge control method of the present invention, comprises the steps:
1) arrange in 2 side of steel pipe discharging section roller-way and set at the top of 3,1.5 ° of sloping skids 5 of 1.5 ° of sloping skids 5 and travelling platform guide rail Laser range sensor 6 is put, its radiating laser beams angle is adjusted parallel with 1.5 ° of 5 upper surfaces of sloping skid;
2) 4 running mechanism of travelling platform is connected by PLC with laser range sensor 6, and laser range sensor 6 is adopted On 1.5 ° of sloping skids 5 of collection, most proximal end steel pipe point distance measurement transfers data to PLC apart from P;
3) PLC programming, calculates the comb safe distance of the laser ranging point P on steel pipe, calculates comb safety Apart from when, 1 diameter of steel pipe is defaulted as ¢ 1626, i.e., carry out substitution calculating with current production maximum specification diameter of steel tube;Steel pipe Upper laser ranging point P is S to heel row steel pipe outermost end O distance, and comb safe distance is 1.5S;Laser range sensor 6 is to most On near-end steel pipe, laser ranging point P distances are d, and the vertical range after conversion is D=dcos1.5 °;Travelling platform initial position M It is L away from laser range sensor N distances, then travelling platform needs the displacement to be:D+L-1.5S;(as shown in Figure 2)
4) 4 row of travelling platform to discharging section roller-way 2 lifts steel pipe 1 by lifting device 7 and returns to initial position M, PLC Controller control displacement of the travelling platform 4 to 1.5 ° of 5 directions of sloping skid, away from 1.5 ° of sloping skids most proximal end steel pipe safety away from From place's discharge steel pipe 1;
5) step 2) -4) repeat, steel pipe 1 is arranged in order on 1.5 ° of sloping skids 5, steel pipe 1 on 1.5 ° of sloping skids 5 Transport after being booked, repeat step 2) -4), until the discharging of steel pipe 1 is completed.
See Fig. 1, be the structural representation of device of the present invention.It is of the present invention for realizing a kind of straight-line joint submerged arc welding tube The drawing mechanism of discharge control method, including travelling platform 4,3,1.5 ° of sloping skids 5 of travelling platform guide rail, 6 and of laser range sensor PLC, the travelling platform guide rail 3 and 1.5 ° of sloping skids 5 are laid in 2 side of steel pipe discharging section roller-way, its cloth set direction with 1 conveying direction of steel pipe is vertical;Laser range sensor 6 is arranged on 1.5 ° of sloping skids 5 near one of stand top of travelling platform 4 Portion, laser range sensor 6 are connected by PLC with 4 running mechanism of travelling platform, and travelling platform 4 is provided with lifting device 7。
1.5 ° of sloping skids 5 are made up of multiple uniform parallel stands, and which is laid width and is mutually fitted with 1 maximum length of steel pipe Should;Travelling platform guide rail 3 is laid in the middle part of 1.5 ° of sloping skids 5.
3 laying length of travelling platform guide rail more than roller-way 2 to 5 outermost distance of stand, can lead along travelling platform by travelling platform 4 Rail 3 is moved to below roller-way 2, and limits initial position M by stopping means, and initial position M is located on the outside of 1.5 ° of sloping skids 5 and leans on At nearly roller-way 2.
The radiating laser beams angle of the laser range sensor 6 is parallel with 1.5 ° of 5 upper surfaces of sloping skid.
Following examples are implemented under premised on technical solution of the present invention, give detailed embodiment and tool The operating process of body, but protection scope of the present invention is not limited to following embodiments.In following embodiments, method therefor is such as without spy Do not mentionlet alone and bright be conventional method.
【Embodiment】
As shown in figure 1, in the present embodiment, linear roll table 2 is used for longitudinally fed steel pipe 1;Travelling platform 4 is used for the horizontal stroke of steel pipe 1 To conveying;1.5 ° of sloping skids 5 are fixed in ground base, for arranging storage steel pipe 1;Laser range sensor 6 is for over long distances Laser range sensor, for detecting the position of steel pipe 1, and sends the data of detection to PLC.
1 whole discharging process of steel pipe is:Steel pipe 1 of the linear roll table 2 by Workshop Production after qualified is transported to travelling platform splicing Station;Travelling platform 4 is controlled by PLC program, back and forth can be walked on guides 3, is firstly moved to below roller-way 2 And the rise of steel pipe 1 is realized by splicing by lifting device 7, travelling platform 4 is calculated by the sequential operation in PLC then Transport steel pipe and reach the distance that specified location needs to walk, lifting device 7 falls and realizes discharge after reaching specified location;Steel pipe 1 It is transferred at safe distance successively on 1.5 ° of sloping skids 5, steel pipe 1 is slowly rolled and arranged successively along 1.5 ° of 5 upper surfaces of sloping skid Row, so as to complete the safely and fast discharging of steel pipe 1.
The discharge safe distance of steel pipe 1 refer to steel pipe 1 fall under travelling platform 4 on sloping skid 5 and self gravitation effect, to During lower rolling, the side that can be rolled to adjacent above discharge steel pipe 1 stops, and will not cause to above because rolling speed is too fast again The impact injury of discharge steel pipe 1.After experimental verification repeatedly, the empirical value that we draw is the optimum incline angle of sloping skid Spend for 1.5 °;Laser ranging point P is such as set on steel pipe to heel row steel pipe outermost end O distance as S, then discharges the peace of latter steel pipe 1 Full distance is (1~2) S, and in the present embodiment, comb safe distance takes 1.5S.
If it is desired to precise control this safe distance, can be programmed in PLC according to different size steel pipe 1 respectively, root Called according to 1 model of produced steel pipe at any time.In the present embodiment, as simplification, programing work amount is reduced, all relevant steel pipes 1 It is ¢ 1626 to calculate acquiescence diameter of steel tube, i.e., produced at present maximum diameter of steel tube, because its deadweight is maximum, meets 1626 rows of ¢ The safe distance that pipe is required, other pipe with small pipe diameter steel pipes can also ensure interfere collision phenomenon in discharge.
In Fig. 2, M points are travelling platform initial position, and N points are laser range sensor installation site;P points are away from laser ranging Laser ranging point on sensor most proximal end steel pipe, O points are next steel pipe outermost points to be discharged.Then the distance between OP It is L for the distance between S, MN, the oblique distance between NP is d, and vertical range is D.
In the present embodiment, the laser beam after laser range sensor 6 is installed away from 1.5 ° of sloping skids, 5 upper surface centre-height is 60mm, can calculate the size of S accordingly, also can directly be measured by the picture setting-out in CAD, in the present embodiment, S= 2132mm, comb safe distance are 1.5S=3198mm.
In the present embodiment, L=1600mm, actual measurement d=9355mm, then D=9355 × cos1.5 °=9352mm, travelling platform 4 The displacement is needed to be:D+L-1.5S=7754mm.I.e. when travelling platform 4 is from initial position M to 1.5 ° of sloping skid side shiftings 7754mm When, travelling platform lifting device 7 falls and the steel pipe 1 for needing discharging is placed on 1.5 ° of sloping skids 5, and steel pipe 1 is along 1.5 ° of sloping skids 5 Discharged with previous steel pipe 1 side by side after slow rolling downwards, complete this 1 discharging process of steel pipe.The rest may be inferred, until completing complete Portion's discharging work.

Claims (5)

1. a kind of straight-line joint submerged arc welding tube discharge control method, it is characterised in that comprise the steps:
1) 1.5 ° of sloping skids and travelling platform guide rail are set in steel pipe discharging section roller-way side, Laser Measuring is set at the top of 1.5 ° of sloping skids Away from sensor, its radiating laser beams angle is adjusted parallel with 1.5 ° of sloping skid upper surfaces;
2) travelling platform running mechanism is connected by PLC with laser range sensor, and laser range sensor gathers 1.5 ° On sloping skid, most proximal end steel pipe point distance measurement distance, transfers data to PLC;
3) PLC programming, calculates the comb safe distance of the laser ranging point on steel pipe, calculates comb safe distance When, diameter of steel tube is defaulted as ¢ 1626, i.e., carry out substitution calculating with current production maximum specification diameter of steel tube;Laser on steel pipe Point distance measurement to heel row steel pipe outermost end distance is S, and comb safe distance is 1.5S;Laser range sensor is to most proximal end steel pipe Laser ranging point distance is d, and the vertical range after conversion is D=dcos1.5 °;Travelling platform initial position is passed away from laser ranging Sensor distance is L, then travelling platform needs the displacement to be:D+L-1.5S;
4) it is traversing to reach in discharging section roller-way, steel pipe is lifted by lifting device and initial position is returned to, PLC control Displacement of the travelling platform to 1.5 ° of sloping skid directions, is discharging steel at most proximal end steel pipe safe distance on 1.5 ° of sloping skids Pipe;
5) step 2) -4) repeat, steel pipe is arranged in order on 1.5 ° of sloping skids, is turned after steel pipe is booked on 1.5 ° of sloping skids Fortune, repeats step 2) -4), until steel pipe discharging is completed.
2. it is used for realizing a kind of drawing mechanism of the straight-line joint submerged arc welding tube discharge control method described in claim 1, its feature exists In including travelling platform, travelling platform guide rail, 1.5 ° of sloping skids, laser range sensor and PLCs, the travelling platform guide rail Steel pipe discharging section roller-way side is laid in 1.5 ° of sloping skids, its cloth set direction is vertical with steel pipe market direction;Laser ranging is passed Sensor is arranged on one of bench top of 1.5 ° of sloping skids near travelling platform, laser range sensor and travelling platform traveling machine Structure is connected by PLC, and travelling platform is provided with lifting device.
3. a kind of straight-line joint submerged arc welding tube drawing mechanism according to claim 2, it is characterised in that 1.5 ° of sloping skids by Multiple uniform parallel stand compositions, which is laid width and is adapted with steel pipe maximum length;Travelling platform guide rail is laid in 1.5 ° tiltedly In the middle part of stand.
4. a kind of straight-line joint submerged arc welding tube drawing mechanism according to claim 2, it is characterised in that the travelling platform guide rail paving If more than roller-way to 1.5 ° of sloping skid outermost distances, travelling platform can be moved to below roller-way length along travelling platform guide rail, and lead to Cross stopping means and limit initial position, initial position is located on the outside of 1.5 ° of sloping skids at roller-way.
5. a kind of straight-line joint submerged arc welding tube drawing mechanism according to claim 2, it is characterised in that the laser ranging sensing The radiating laser beams angle of device is parallel with 1.5 ° of sloping skid upper surfaces.
CN201510246135.0A 2015-05-14 2015-05-14 A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism Active CN104843474B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510246135.0A CN104843474B (en) 2015-05-14 2015-05-14 A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510246135.0A CN104843474B (en) 2015-05-14 2015-05-14 A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism

Publications (2)

Publication Number Publication Date
CN104843474A CN104843474A (en) 2015-08-19
CN104843474B true CN104843474B (en) 2017-03-29

Family

ID=53843543

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510246135.0A Active CN104843474B (en) 2015-05-14 2015-05-14 A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism

Country Status (1)

Country Link
CN (1) CN104843474B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111573123A (en) * 2020-05-25 2020-08-25 佛山市帝益机械科技有限公司 Longitudinal conveying mechanism and automatic framing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB871913A (en) * 1959-09-18 1961-07-05 Loewy Eng Co Ltd Broadside transfer device for elongated metal articles
FR2605537A1 (en) * 1986-10-23 1988-04-29 Unimetall Sa Method and device for automatically distributing metal bars in the form of a sheet into the notches of a shear cutter
CN2920927Y (en) * 2006-03-31 2007-07-11 北京耐博基业防水装备有限公司 Large coiled materials stacking machine
CN202389921U (en) * 2011-11-29 2012-08-22 扬州亚联钢管有限公司 Automatic steel tube conveying device
CN103482347A (en) * 2012-11-28 2014-01-01 中联重科股份有限公司 Automatic production conveyor line
CN103480761A (en) * 2013-09-26 2014-01-01 天津腾飞钢管有限公司 Feeding device for steel tubes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB871913A (en) * 1959-09-18 1961-07-05 Loewy Eng Co Ltd Broadside transfer device for elongated metal articles
FR2605537A1 (en) * 1986-10-23 1988-04-29 Unimetall Sa Method and device for automatically distributing metal bars in the form of a sheet into the notches of a shear cutter
CN2920927Y (en) * 2006-03-31 2007-07-11 北京耐博基业防水装备有限公司 Large coiled materials stacking machine
CN202389921U (en) * 2011-11-29 2012-08-22 扬州亚联钢管有限公司 Automatic steel tube conveying device
CN103482347A (en) * 2012-11-28 2014-01-01 中联重科股份有限公司 Automatic production conveyor line
CN103480761A (en) * 2013-09-26 2014-01-01 天津腾飞钢管有限公司 Feeding device for steel tubes

Also Published As

Publication number Publication date
CN104843474A (en) 2015-08-19

Similar Documents

Publication Publication Date Title
CN107931336B (en) Coil of strip uncoiling automatic positioning auxiliary threading system and method
CN105642781A (en) Artificial intelligence sheet metal part producing system
US5582224A (en) Methods and apparatus for centering a log and for supplying a log to be centered
CN106862926A (en) A kind of oil pump process and assemble semi-automation production line
CN102974614B (en) Upward rolling controlling device and automatic upward rolling controlling method for hot rolling temper mill
CN108480881A (en) A kind of cold-rolled steel coils core welding method based on articulated robot
CN104384935A (en) Automatic production equipment of spiral steel pipe with spiral reinforcing ring
CN104060839B (en) Be exclusively used in large stadium metal curtain wall steel construction vertical keel construction control method
CN104843474B (en) A kind of straight-line joint submerged arc welding tube discharge control method and drawing mechanism
CN106270970A (en) A kind of intelligent machine automatization H profile steel Member Welding carrying method
CN204777501U (en) Transversal joint submerged -arc welded (SAW) pipe discharging device
KR101536641B1 (en) Apparatus for cutting off bead on welded steel pipe
CN106975675A (en) The wind-powered electricity generation steel-pipe pile shell rolling technique of system and the application system is monitored and controlled in a kind of light sensation of veneer reeling machine
CN110586483B (en) Automatic sorting system for pipes
US7310890B2 (en) Apparatus for automatically measuring external and internal profile of a pipe at the end thereof
CN105866130B (en) A kind of pipeline on-line detecting system
CN206717409U (en) A kind of semi-automatic production line of oil pump process and assemble
CN204868098U (en) Take spiral steel pipe automated production equipment of spiral beaded finish
CN106348055A (en) Multifunctional automatic vehicle loader
CN210413292U (en) Main rib conveying mechanism
CN205042665U (en) Paint finishing of pneumatic lift
CN104197854A (en) Steel tube curvature measuring device
CN108465935B (en) A kind of core of steel coil automatic soldering method
CN107966774B (en) The manufacturing method of optical cable
CN104251885A (en) Adjustment method of position deviation of welded pipe welding line and ultrasonic flaw detection dolly

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant