CN110819787A - High-precision isothermal quenching rotary hearth furnace accurate positioning device - Google Patents
High-precision isothermal quenching rotary hearth furnace accurate positioning device Download PDFInfo
- Publication number
- CN110819787A CN110819787A CN201911331730.9A CN201911331730A CN110819787A CN 110819787 A CN110819787 A CN 110819787A CN 201911331730 A CN201911331730 A CN 201911331730A CN 110819787 A CN110819787 A CN 110819787A
- Authority
- CN
- China
- Prior art keywords
- positioning device
- isothermal quenching
- furnace
- rotary hearth
- material tray
- 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.)
- Pending
Links
- 238000010791 quenching Methods 0.000 title claims abstract description 38
- 230000000171 quenching effect Effects 0.000 title claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 44
- 238000005279 austempering Methods 0.000 claims description 6
- 230000007306 turnover Effects 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000006698 induction Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a high-precision isothermal quenching rotary hearth furnace accurate positioning device which comprises an isothermal quenching furnace main body, a feeding and discharging mechanism and an air cylinder, wherein a guide chassis is arranged below the isothermal quenching furnace main body, a positioning device is arranged on the right side of the guide chassis, the feeding and discharging mechanism is fixedly arranged on the right side of the isothermal quenching furnace main body, a rotary furnace bottom is arranged at the lower end of the isothermal quenching furnace main body, the air cylinder is arranged on the right side of the guide chassis, a first limiting plate is embedded and mounted in the bottom end of a bearing ring, and the first limiting plate and a second limiting plate attract each other. The high-precision isothermal quenching rotary hearth furnace accurate positioning device not only prevents the phenomena of blockage, collision, friction channel side wall faults and the like of the charging tray in the process of entering and exiting, but also reduces the fault maintenance cost, simultaneously improves the production efficiency, and eliminates the risk of quality problems caused by shutdown maintenance due to blockage, collision and the like of the charging tray.
Description
Technical Field
The invention relates to the technical field related to isothermal quenching heat treatment of bearing parts, in particular to a high-precision accurate positioning device for an isothermal quenching rotary hearth furnace.
Background
The common isothermal quenching heat treatment rotary hearth heating furnace has 15 stations, namely 14 charging trays are placed on a furnace bottom plate, heated ferrules are placed on the charging trays, one of the stations is without material tray, so as to realize the exchange of material tray from the furnace door, during the working process, the rotation of the furnace bottom plate is positioned by an infrared detector, the conditions of travel error or insensitive induction are easy to occur frequently in long-term use, the position of the charging tray and the furnace door can not be accurately positioned, the charging and discharging mechanism is blocked in the process of pushing and pulling the charging tray, the furnace must be stopped for maintenance, the production is influenced, but also causes a great deal of manpower and resource waste, even the condition that the ferrules of other trays in the rotary hearth heating furnace are scrapped or have poor quality due to overlong overheating time and the like, therefore, we have proposed a high-precision austempering rotary hearth furnace accurate positioning apparatus so as to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a high-precision isothermal quenching rotary hearth furnace accurate positioning device, which solves the problems that most of the isothermal quenching rotary hearth furnace accurate positioning devices provided in the background art are easy to have stroke errors or insensitive induction in long-term use, so that the positions of a material tray and a furnace door cannot be accurately positioned, production is influenced, a large amount of manpower and resources are wasted, and even ferrules of other material trays in a rotary hearth heating furnace are scrapped or have poor quality due to too long overheating time.
In order to achieve the purpose, the invention provides the following technical scheme: a high-precision isothermal quenching rotary hearth furnace accurate positioning device comprises an isothermal quenching furnace main body, a feeding and discharging mechanism and an air cylinder, wherein a guide chassis is arranged below the isothermal quenching furnace main body, the lower end of the guide chassis is connected with a clamping groove, a positioning device is arranged on the right side of the guide chassis, the feeding and discharging mechanism is fixedly arranged on the right side of the isothermal quenching furnace main body, a channel is arranged on the right side of the feeding and discharging mechanism, the lower end of the isothermal quenching furnace main body is provided with a rotary furnace bottom, a material tray is placed on the rotary furnace bottom, a bearing ring is placed above the material tray, the air cylinder is arranged on the right side of the guide chassis, the left end of the air cylinder is fixedly connected with an ejector rod, the air cylinder is arranged on a platform, the lower end of the platform is connected with the positioning device through a supporting frame, and, and the lower extreme of bearing ring pastes and is connected with the bottom plate, first limiting plate and second limiting plate inter attraction, and the setting is inlayed in the inside of charging tray to the second limiting plate.
Preferably, the clamping grooves are distributed in an annular array relative to the center of the guide chassis, and the upper ends of the clamping grooves are fixedly connected with the lower surface of the guide chassis.
Preferably, the connection mode of the bearing ring and the material tray is magnetic connection, and 2 bearing rings are arranged on the material tray.
Preferably, the center line of the charging tray at the bottom of the rotary furnace, the center line of the channel, the center line of the feeding and discharging mechanism, the center line of the clamping groove and the center line of the telescopic rod of the positioning device are positioned on the same vertical plane.
Preferably, the shape of the outer surface of the ejector rod is matched with the shape of the inner surface of the clamping groove, and the ejector rod is connected with the clamping groove in a clamping manner.
Preferably, the lower surface of the bottom plate is of a concave-convex structure, and the bottom plate is made of a rubber material.
Compared with the prior art, the invention has the beneficial effects that: the high-precision isothermal quenching rotary hearth furnace accurate positioning device not only prevents the phenomena of blockage, collision, friction channel side wall faults and the like of the charging tray in the process of entering and exiting, but also reduces the fault maintenance cost, simultaneously improves the production efficiency, and eliminates the risk of quality problems caused by shutdown maintenance due to blockage, collision and the like of the charging tray;
be provided with first limiting plate on the bearing ring, be provided with the second limiting plate in the inside of charging tray, because the material of first limiting plate and second limiting plate is permanent magnetic material, and first limiting plate and second limiting plate inter attraction, consequently can carry out the position of certain degree to the bearing ring on the charging tray and prescribe a limit to, prevent that the accident of bearing ring from dropping, and do not influence the placing and taking of bearing ring on the charging tray.
Drawings
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is a schematic view of the connection structure of the ejector rod and the cylinder;
FIG. 3 is a schematic view of a front sectional view of the connection between the bearing ring and the tray according to the present invention;
FIG. 4 is a schematic view of a connection structure of the engaging groove and the rod.
In the figure: 1. an isothermal quenching furnace main body; 2. a guide chassis; 3. a positioning device; 4. a card slot; 5. a bearing ring; 6. a material tray; 7. a channel; 8. a feeding and discharging mechanism; 9. a top rod; 10. a cylinder; 11. a platform; 12. a support frame; 13. rotating the furnace bottom; 14. a first limit plate; 15. a base plate; 16. and a second limiting plate.
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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a high-precision isothermal quenching rotary hearth furnace accurate positioning device comprises an isothermal quenching furnace main body 1, a guide chassis 2, a positioning device 3, a clamping groove 4, a bearing ring 5, a material tray 6, a channel 7, a feeding and discharging mechanism 8, an ejector rod 9, an air cylinder 10, a platform 11, a support frame 12, a rotary hearth 13, a first limiting plate 14, a bottom plate 15 and a second limiting plate 16, wherein the guide chassis 2 is arranged below the isothermal quenching furnace main body 1, the lower end of the guide chassis 2 is connected with the clamping groove 4, the positioning device 3 is arranged on the right side of the guide chassis 2, the feeding and discharging mechanism 8 is fixedly arranged on the right side of the isothermal quenching furnace main body 1, the channel 7 is arranged on the right side of the feeding and discharging mechanism 8, the rotary hearth 13 is arranged at the lower end of the isothermal quenching furnace main body 1, the material tray 6 is arranged on the rotary hearth 13, the bearing ring 5 is arranged above the material tray, and the left end and the ejector pin 9 fixed connection of cylinder 10, cylinder 10 install on platform 11, and the lower extreme of platform 11 is connected with positioner 3 through support frame 12, and the inside embedding of bottom of bearing ring 5 installs first limiting plate 14, and the lower extreme of bearing ring 5 pastes and is connected with bottom plate 15, and first limiting plate 14 attracts each other with second limiting plate 16, and second limiting plate 16 inlays the setting in the inside of charging tray 6.
As shown in fig. 1, the clamping grooves 4 are distributed in an annular array with respect to the center of the guide chassis 2, and the upper ends of the clamping grooves 4 are fixedly connected with the lower surface of the guide chassis 2, so as to facilitate accurate positioning of various angles of the rotary furnace bottom 13, and the center line of the material tray 6 at the rotary furnace bottom 13, the center line of the channel 7, the center line of the feeding and discharging mechanism 8, the center line of the clamping grooves 4 and the center line of the telescopic rod of the positioning device 3 are on the same vertical slice surface, so that the material tray 6 does not collide and rub with two sides of the channel 7 in the feeding;
as shown in fig. 3, the connection mode of the bearing ring 5 and the material tray 6 is magnetic connection, and 2 bearing rings 5 are arranged on the material tray 6, so that the bearing rings 5 are prevented from accidentally falling off the material tray 6, the lower surface of the bottom plate 15 is of a concave-convex structure, the bottom plate 15 is made of rubber materials, the friction resistance between the bottom plate 15 and the upper surface of the material tray 6 can be increased, and the bearing rings 5 can be more stably placed on the material tray 6;
as shown in figure 4, the shape of the outer surface of the ejector rod 9 is matched with the shape of the inner surface of the clamping groove 4, and the ejector rod 9 is connected with the clamping groove 4 in a clamping manner, so that the ejector rod 9 is conveniently and accurately clamped with the clamping groove 4, and the ejector rod 9 is prevented from shaking in the clamping groove 4.
The working principle is as follows: when the high-precision isothermal quenching rotary hearth furnace accurate positioning device is used, firstly, the bearing ring 5 is placed on the material tray 6, and when the high-precision isothermal quenching rotary hearth furnace accurate positioning device is placed, the bearing ring 5 is adsorbed on the material tray 6 because the first limiting plate 14 of the permanent magnet structure is installed in the bearing ring 5 and the second limiting plate 16 of the permanent magnet structure is installed in the material tray 6, so that the bearing ring 5 is prevented from accidentally dropping from the material tray 6, and then the material tray 6 is conveyed to a corresponding position on the rotary hearth 13 through the channel 7 by the feeding and discharging mechanism 8, so that the rotary hearth 13 and the guide chassis 2 rotate together;
when the clamping groove 4 runs to the position of the positioning device 3, the cylinder 10 is started, the ejector rod 9 connected to the cylinder 10 extends out, the ejector rod 9 is inserted into the clamping groove 4, accurate positioning of the rotary hearth 13 is realized, the material tray 6 just stops right ahead of the inlet and outlet channel 7 at the moment, the feeding and discharging mechanism 8 automatically extends in, the material tray 6 is pulled away from the isothermal quenching furnace main body 1 through the channel 7 to enter a next procedure, accurate positioning of the material tray 6 is completed, in the process, the occurrence of bad phenomena such as dislocation and clamping stagnation of the material tray 6 can be avoided, the production efficiency is improved to a great extent, the occurrence of product quality accidents is also avoided, and the working principle of the high-precision isothermal quenching rotary hearth furnace accurate positioning device is realized.
The standard parts used in the invention can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described, and the content not described in detail in the specification belongs to the prior art known by persons skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a high-accuracy isothermal quenching rotary hearth furnace accurate positioning device, includes isothermal quenching furnace main part (1), business turn over material mechanism (8) and cylinder (10), its characterized in that: the isothermal quenching furnace is characterized in that a guide chassis (2) is arranged below the isothermal quenching furnace body (1), a clamping groove (4) is connected to the lower end of the guide chassis (2), a positioning device (3) is arranged on the right side of the guide chassis (2), a feeding and discharging mechanism (8) is fixedly arranged on the right side of the isothermal quenching furnace body (1), a channel (7) is arranged on the right side of the feeding and discharging mechanism (8), a rotary furnace bottom (13) is arranged at the lower end of the isothermal quenching furnace body (1), a material tray (6) is placed on the rotary furnace bottom (13), a bearing ring (5) is placed above the material tray (6), the bearing ring (5) is magnetically connected with the material tray (6), 2 bearing rings are arranged on the material tray (6), an air cylinder (10) is arranged on the right side of the guide chassis (2), and the left end of the air cylinder (10) is fixedly connected with an ejector rod (9), cylinder (10) are installed on platform (11), and the lower extreme of platform (11) is connected with positioner (3) through support frame (12), the inside embedding in bottom of bearing ring (5) installs first limiting plate (14), and the lower extreme of bearing ring (5) pastes and is connected with bottom plate (15), first limiting plate (14) and second limiting plate (16) inter attraction, and second limiting plate (16) inlay the inside that sets up at charging tray (6).
2. The precise positioning device for the high-precision austempering rotary hearth furnace of claim 1, which is characterized in that: the clamping grooves (4) are distributed in an annular array mode about the center of the guide chassis (2), and the upper ends of the clamping grooves (4) are fixedly connected with the lower surface of the guide chassis (2).
3. The precise positioning device for the high-precision austempering rotary hearth furnace of claim 1, which is characterized in that: the center line of the material tray (6) at the bottom of the rotary furnace (13), the center line of the channel (7), the center line of the feeding and discharging mechanism (8), the center line of the clamping groove (4) and the center line of the telescopic rod of the positioning device (3) are positioned on the same vertical slice surface.
4. The precise positioning device for the high-precision austempering rotary hearth furnace of claim 1, which is characterized in that: the shape of the outer surface of the ejector rod (9) is matched with the shape of the inner surface of the clamping groove (4), and the ejector rod (9) is connected with the clamping groove (4) in a clamping mode.
5. The precise positioning device for the high-precision austempering rotary hearth furnace of claim 1, which is characterized in that: the lower surface of the bottom plate (15) is of a concave-convex structure, and the bottom plate (15) is made of rubber materials.
6. The precise positioning device for the high-precision austempering rotary hearth furnace of claim 1, which is characterized in that: the specific working principle of the high-precision isothermal quenching rotary hearth furnace accurate positioning device is as follows: when the high-precision isothermal quenching rotary hearth furnace accurate positioning device is used, firstly, the bearing ring (5) is placed on the material tray (6), and when the device is placed, the bearing ring (5) is adsorbed on the material tray (6) due to the fact that the first limiting plate (14) of the permanent magnet structure is installed inside the bearing ring (5) and the second limiting plate (16) of the permanent magnet structure is installed inside the material tray (6), the bearing ring (5) is prevented from accidentally falling off the material tray (6), then the material tray (6) is conveyed to a corresponding position on the rotary hearth (13) through the channel (7) by the feeding and discharging mechanism (8), and the rotary hearth (13) and the guide chassis (2) rotate together;
when draw-in groove (4) moved positioner (3) position, cylinder (10) will be started, ejector pin (9) of connecting on cylinder (10) stretch out, and make ejector pin (9) insert the inside of draw-in groove (4), realize the accurate positioning to rotation furnace bottom (13), charging tray (6) just stop in the dead ahead of access way (7) this moment, business turn over material mechanism (8) are automatic to be stretched into, draw charging tray (6) from isothermal quenching furnace main part (1) entering next procedure through passageway (7), accomplish the accurate positioning to charging tray (6) from this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331730.9A CN110819787A (en) | 2019-12-21 | 2019-12-21 | High-precision isothermal quenching rotary hearth furnace accurate positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331730.9A CN110819787A (en) | 2019-12-21 | 2019-12-21 | High-precision isothermal quenching rotary hearth furnace accurate positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110819787A true CN110819787A (en) | 2020-02-21 |
Family
ID=69546128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911331730.9A Pending CN110819787A (en) | 2019-12-21 | 2019-12-21 | High-precision isothermal quenching rotary hearth furnace accurate positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110819787A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101368791A (en) * | 2008-09-08 | 2009-02-18 | 张家港市逸洋制管有限公司 | Material feeding device of annular furnace |
| JP2009084617A (en) * | 2007-09-28 | 2009-04-23 | Chugai Ro Co Ltd | Cooling-treatment apparatus |
| CN103937954A (en) * | 2014-04-18 | 2014-07-23 | 东华大学 | Bearing ring and sleeve part automatic quenching machine based on robot control |
| CN108584432A (en) * | 2018-03-08 | 2018-09-28 | 江山显进机电科技服务有限公司 | Charging tray transfer device and charging tray transfer method |
| CN108974977A (en) * | 2018-04-23 | 2018-12-11 | 嘉兴晨飞科技有限公司 | A kind of bearing ring automatic charging device |
| WO2019170139A1 (en) * | 2018-03-08 | 2019-09-12 | 瓦房店金冠达轴承制造有限公司 | Rotary quenching system |
| CN209383829U (en) * | 2018-10-29 | 2019-09-13 | 南京科浪机械制造有限公司 | Isothermal nitrate quenching furnace automatic feeding device |
-
2019
- 2019-12-21 CN CN201911331730.9A patent/CN110819787A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009084617A (en) * | 2007-09-28 | 2009-04-23 | Chugai Ro Co Ltd | Cooling-treatment apparatus |
| CN101368791A (en) * | 2008-09-08 | 2009-02-18 | 张家港市逸洋制管有限公司 | Material feeding device of annular furnace |
| CN103937954A (en) * | 2014-04-18 | 2014-07-23 | 东华大学 | Bearing ring and sleeve part automatic quenching machine based on robot control |
| CN108584432A (en) * | 2018-03-08 | 2018-09-28 | 江山显进机电科技服务有限公司 | Charging tray transfer device and charging tray transfer method |
| WO2019170139A1 (en) * | 2018-03-08 | 2019-09-12 | 瓦房店金冠达轴承制造有限公司 | Rotary quenching system |
| CN108974977A (en) * | 2018-04-23 | 2018-12-11 | 嘉兴晨飞科技有限公司 | A kind of bearing ring automatic charging device |
| CN209383829U (en) * | 2018-10-29 | 2019-09-13 | 南京科浪机械制造有限公司 | Isothermal nitrate quenching furnace automatic feeding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210050563U (en) | Bearing grease injection head and bearing grease injection device | |
| CN104943880A (en) | Multi-station dispensing machine | |
| CN206305067U (en) | Ceramic sleeve pulling force precise screening machine | |
| CN205033477U (en) | Rotary mechanism of circular feeder equipment | |
| CN110819787A (en) | High-precision isothermal quenching rotary hearth furnace accurate positioning device | |
| CN203448972U (en) | Glass supporting clamp installation tool | |
| CN203652749U (en) | Round member charging apparatus | |
| CN206437496U (en) | A kind of detection transmission integrated apparatus produced for resistance | |
| CN209079237U (en) | A kind of heat-shrink tube welding platform | |
| CN203753517U (en) | Rotary table mechanism | |
| CN207681874U (en) | Four axis track bearing hot presses | |
| CN110653875A (en) | Multifunctional full-automatic pipe drilling machine | |
| CN206537868U (en) | A kind of attaching plug transfer balance line | |
| CN106586584B (en) | Air conditioner foot margin conveying machine | |
| CN205927817U (en) | Car wiper intelligent assembly equipment | |
| CN205310661U (en) | Inserts rubber coating is moulded plastics with rotatory charging equipment | |
| CN106141653A (en) | The rubber ring feed mechanism of electromagnetic valve diaphragm kludge | |
| CN219224827U (en) | Test workbench of permanent magnet synchronous motor | |
| CN220587199U (en) | Calf feeding device | |
| CN205968142U (en) | Rubber circle feed mechanism of diaphragm solenoid valve kludge | |
| CN221395656U (en) | Vehicle-mounted plate translation machine | |
| CN207386275U (en) | For the hydraulic test of air conditioning for automobiles piston manufacture | |
| CN107671935B (en) | Protection component for water feeding port joint of flat plate collector and production equipment thereof | |
| CN108302830B (en) | Protection component for water gap joint of flat plate collector and production equipment thereof | |
| CN205968027U (en) | Top feedway of diaphragm solenoid valve kludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |