Nothing Special   »   [go: up one dir, main page]

CN109876995B - Oil immersion spin-drying device for mechanical parts - Google Patents

Oil immersion spin-drying device for mechanical parts Download PDF

Info

Publication number
CN109876995B
CN109876995B CN201910295330.0A CN201910295330A CN109876995B CN 109876995 B CN109876995 B CN 109876995B CN 201910295330 A CN201910295330 A CN 201910295330A CN 109876995 B CN109876995 B CN 109876995B
Authority
CN
China
Prior art keywords
rotating shaft
oil tank
oil
shaft sleeve
motor
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
CN201910295330.0A
Other languages
Chinese (zh)
Other versions
CN109876995A (en
Inventor
刘忠义
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201910295330.0A priority Critical patent/CN109876995B/en
Publication of CN109876995A publication Critical patent/CN109876995A/en
Application granted granted Critical
Publication of CN109876995B publication Critical patent/CN109876995B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Drying Of Solid Materials (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

The invention provides a machine part immersion oil spin-drying device, which comprises a frame body, wherein a working panel, an oil tank, a compression cylinder or a hydraulic cylinder or an electric push rod is arranged on the frame body, the top of the oil tank is provided with the working panel, the rear side part of the oil tank is provided with the frame body, the center of the working panel of the oil tank is provided with a workpiece hole, a rotary disc is arranged below the workpiece hole, the bottom of the oil tank is provided with a motor, the bottom of the rotary disc is connected with the top end of a rotary shaft, and the bottom end of the rotary shaft is connected with an output shaft of the motor.

Description

Oil immersion spin-drying device for mechanical parts
Technical Field
The invention relates to the technical field of machining, in particular to an oil immersion spin-drying device for mechanical parts.
Background
The processing and manufacturing process of the shaft disc type parts is complex, and each link from initial casting or die casting, then machining to final finished product rust prevention is important. Currently, the rust prevention treatment mainly comprises the following modes:
1) the manual oil immersion rust prevention is mainly characterized in that shaft disc parts are completely immersed in the rust prevention oil in a manual mode, then the redundant rust prevention oil is taken out and automatically dripped, and finally the shaft disc parts are taken out and packaged; however, the process has three disadvantages: firstly, the takt time is long, and the static oil dripping time is needed; secondly, more antirust oil is taken away from the surface of the shaft disc type part, so that the consumption of a single unit is large, and the cost of auxiliary materials is increased invisibly; and thirdly, in the storage process of the shaft disc type parts, excessive antirust oil can be adhered to the surfaces of the shaft disc type parts to form an oil film with larger adhesive force than that of the conventional oil film, so that the antirust oil is not easy to clean thoroughly before the whole machine is assembled, the later assembly is influenced, and even the output of the assembled whole machine cannot reach the design performance index.
2) The spraying type equipment is used for rust prevention, the equipment mainly comprises a roller way, a spray head, an oil tank, an oil pump, a transmission system and the like, and the working principle is that shaft disc parts automatically enter the equipment through the roller way, then rust-preventing oil is directly pumped out to the spray head through the oil pump and directly sprayed to the surfaces of the shaft disc parts, and finally rust prevention treatment is finished; the mode can cause that the local spray cannot be realized, the phenomenon of more antirust oil on the surface of the shaft disc type part still exists, the oil dripping time is set, and the cleaning is not thorough before the later assembly;
3) the equipment is characterized in that an atomization device and an oil mist collection system device are added on the basis of 1) and 2), in addition, higher requirements are put on the sealing condition of the equipment, otherwise, oil molecules can overflow, the oil mist collection system in the current market also has a certain short plate, so that the redundant oil mist is difficult to be completely recovered, and in addition, if the oil mist system or the sealing environment of the equipment is abnormal, the oil molecules can be immediately dispersed to the periphery of the field working environment, the surrounding environment is seriously influenced, even the working mood of staff is influenced, and the body of the staff is not suitable; the atomizing rust-proof treatment changes the excessive situation of the rust-proof oil caused by the two modes, reduces the cost, but if the atomization device is unreasonable in debugging, the local rust-proof of the shaft disc parts is not in place, and the rust phenomenon of the shaft disc parts can occur in the storage process, thereby bringing unnecessary consequences and even leading the shaft disc parts to be scrapped.
Disclosure of Invention
The invention aims to provide an oil immersion spin-drying device for mechanical parts, which aims to solve the problems in the background technology.
The technical scheme adopted by the invention is as follows: the utility model provides a machine parts immersion oil device that spin-dries, includes the support body, be equipped with work panel, oil tank, compression cylinder or pneumatic cylinder or electric putter on the support body, the oil tank top is equipped with work panel, the back lateral part of oil tank is equipped with the support body, oil tank work panel center is equipped with the work piece hole, the work piece hole has the carousel, the oil tank bottom is equipped with the motor, the bottom of carousel is connected with the top of pivot, the bottom and the motor output shaft hookup of pivot, the last position of keeping away from the work piece hole of work panel is equipped with compression cylinder or pneumatic cylinder or electric putter, be equipped with the flotation pontoon in the oil tank, compression cylinder or pneumatic cylinder or electric putter's push rod tip is connected with the flotation pontoon, be equipped with the tamponade that corresponds with the carousel directly over the carousel.
Preferably, the tamponade sets up in telescoping device, telescoping device includes telescopic cylinder, compresses tightly the slide, compresses tightly dish, slide rail, the slide rail sets up on the support body perpendicularly, slide rail sliding connection has the slide that compresses tightly, it is connected with telescopic cylinder's telescopic link to compress tightly the slide lateral part, the bottom that compresses tightly the slide rotates and is connected with compresses tightly the dish, the bottom that compresses tightly the dish rotates and is connected with the tamponade.
Preferably, the motor output shaft is connected with the bottom of the rotating shaft sleeve through a coupler, the rotating shaft sleeve is movably connected with the bottom of the oil tank, a rotating shaft is arranged in the rotating shaft sleeve, an external spline is arranged at the bottom end of the rotating shaft, an internal spline is arranged in the rotating shaft sleeve, and the internal spline is in contact fit with the external spline.
Preferably, the rotating shaft is provided with a guide strip, a guide groove is arranged in the rotating shaft sleeve, and the guide groove is connected with the guide strip in a sliding manner.
Preferably, the turntable is provided with a plurality of slotted holes.
Preferably, a pressure spring or a gas spring is arranged between the rotating shaft sleeve and the bottom end of the rotating shaft.
Preferably, the working panel is provided with two cylinders.
Preferably, two sides of the rotating shaft in the oil tank are respectively provided with a buoy.
Preferably, the buoy is polyhedral or annular.
Preferably, the motor is connected with a flange at the bottom of the oil tank, a fixed sleeve is arranged above the bottom of the oil tank, the bottom of the fixed sleeve is welded with the bottom of the oil tank, the top of the fixed sleeve is fixedly connected with the working panel through a support, and an output shaft of the motor is connected with the bottom end of the rotating shaft.
The rotary shaft of the invention has reasonable structure and low cost, can spin-dry redundant oil on the workpiece, improves the recycling rate of the oil, saves the cost, does not cause uneven oiling, and can effectively prevent the workpiece from rusting.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an enlarged view of the connection of the turntable and the rotating shaft in the present invention;
FIG. 4 is a schematic view of the connection between the spindle and the spindle sleeve according to the present invention;
FIG. 5 is a schematic structural diagram of another embodiment of the present invention;
fig. 6 is a schematic structural view of another connection mode of the rotating shaft and the rotating shaft sleeve in the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As can be known from fig. 1-4, a device for soaking mechanical parts in oil and spin-drying comprises a frame body 1, wherein the frame body 1 is provided with a working panel 2, an oil tank 3, a compression cylinder or a hydraulic cylinder or an electric push rod 4 and a control box 7, the top of the oil tank 3 is provided with the working panel 2, the rear side part of the oil tank 3 is provided with the frame body, the right side part of the oil tank 3 is provided with the control box 7, the center of the working panel 2 is provided with a workpiece hole, a turntable 29 is arranged below the workpiece hole, and the turntable 29 is provided with a plurality of slotted holes 22.
The bottom of the oil tank 3 is provided with a motor, and the motor is connected with a bottom flange of the oil tank 3. The bottom of the rotary table is connected with the top end of the rotating shaft 63, and the bottom end of the rotating shaft 63 is connected with a motor output shaft 67. The bottom end of the rotating shaft 63 penetrates through the bottom of the oil tank 3 and is connected with a motor output shaft 67.
And a compression cylinder or a hydraulic cylinder or an electric push rod 4 is arranged at a position, far away from the workpiece hole, on the working panel 2, preferably, two cylinders are arranged on the working panel.
A float 42 is arranged in the oil tank 3, and one end of a push rod 45 of the compression cylinder or hydraulic cylinder or electric push rod 4 is connected with the float 42. The float bowl can be a polyhedron or a ring, and the center of the float bowl 42 is provided with a hole for the rotating shaft 63 to pass through.
Preferably, a float is provided in the oil tank 3 on each side of the rotating shaft 63.
The motor output shaft 67 has the following connection relation with the bottom end of the rotating shaft 63:
the motor output shaft 67 is connected with the bottom of the rotating shaft sleeve 66 through the coupler 27, the rotating shaft sleeve is movably connected with the bottom of the oil tank 3, and the movable connection comprises a mode that a bearing and an oil seal 65 are arranged between the rotating shaft sleeve and the bottom of the oil tank 3.
The pivot cover endotheca is equipped with pivot 63, the bottom of pivot is equipped with external splines 630, be equipped with internal spline 631 in the pivot cover 66, internal spline 631 and external splines 630 contact cooperation, the motor can drive pivot 63 rotatoryly like this.
A gas spring or a pressure spring 62 is arranged between the rotating shaft sleeve 66 and the bottom end of the rotating shaft 63.
Of course, as shown in fig. 4, the bottom of the rotary disk 29 may be connected to the top end of the compression spring 23, and the bottom end of the compression spring 23 may be connected to the spring seat 290 provided on the rotary shaft sleeve 66.
The top of the shaft sleeve 66 is preferably movably connected to the work panel by a bracket 61, as shown in fig. 4, the movable connection including a bearing connection or the like. To enhance the stability of the operation of the spindle sleeve 66.
Another way, as shown in fig. 5, is: the bottom below of oil tank 3 is equipped with the motor, the bottom flange joint of motor and oil tank 3, the bottom top of oil tank 3 is equipped with the fixed sleeving, the fixed sleeving bottom welds with the bottom of oil tank 3, and the fixed sleeving top passes through support fixed connection with the work panel. The motor output shaft 67 is coupled to the bottom end of the rotating shaft 63. And 1 or more than 1 bearing and oil seal 65 are arranged between the rotating shaft sleeve and the fixed sleeve.
As shown in fig. 6, a guide bar 632 is disposed on the rotating shaft, a guide groove 633 is disposed in the rotating shaft sleeve 66, and the guide groove 633 is slidably connected to the guide bar 632. The guide groove 633 is matched with the guide strip 632, so that the motor can drive the rotating shaft 63 to rotate.
The pressure plug 52 sets up in the telescoping device, the telescoping device 5 includes telescopic cylinder 58, compresses tightly slide 56, compresses tightly dish 53, slide rail 55, slide rail 33 sets up perpendicularly on support body 1, slide rail 33 sliding connection has and compresses tightly slide 56, compresses tightly the telescopic link 51 that slide 56 lateral part and telescopic cylinder 58 and is connected, it is connected with and compresses tightly dish 53 to compress tightly slide 56 bottom rotation, the bottom of compressing tightly dish 53 is rotated and is connected with pressure plug 52, compresses tightly dish 53 and can compress tightly the work piece on carousel 29.
The working principle is as follows: a workpiece is placed on the rotary table 29 in the workpiece hole, the travel switch is pressed down to send a pressing signal, the telescopic rod 51 on the telescopic cylinder 58 pulls the pressing slide seat 56 downwards to the working panel along the slide rail 55, and the pressing plug 53 is matched with the pressing disc 53 through the workpiece central shaft hole to press the workpiece. When the workpiece is pressed tightly, the air spring or the pressure spring 62 at the bottom of the rotary disc 29 is also compressed downwards, the air cylinder push rods at the two sides of the working panel simultaneously push the floating barrel 42 downwards to extrude oil to the middle of the oil tank 42, and the oil enters the oil tank 3 through the oil hole on the rotary disc to submerge the workpiece, so that the purpose of oiling the workpiece is achieved. After the workpiece is soaked in the oil for 3-10s, the push rod on the compression cylinder or the hydraulic cylinder or the electric push rod 4 is reset, the oil level falls back along with the reset, and the mode that the motor drives the rotating shaft to rotate can be as follows: the output end of the motor drives the internal spline of the rotating shaft sleeve 66 to rotate through the coupler, so that the external spline of the rotating shaft is driven to rotate; the output end of the motor can also drive the guide groove in the rotating shaft sleeve to rotate through the coupler, the guide strip 632 arranged on the rotating shaft is arranged in the guide groove, and the guide groove 633 is matched with the guide strip 632, so that the motor can also drive the rotating shaft 63 to rotate. The rotating shaft drives the compressed workpiece to rotate on the rotating disc in the oil tank 3, after oil on the workpiece is dried, the motor stops working, the telescopic rod 51 on the telescopic cylinder 58 drives the compression slide seat 56 to return, and redundant oil flows back into the oil tank through the oil inlet 26 at the bottom of the oil tank 3.
The telescopic cylinder can be replaced by an electric push rod and a hydraulic cylinder.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. A mechanical part oil immersion spin-drying device comprises a frame body and is characterized in that a working panel, an oil tank, a compression cylinder or a hydraulic cylinder or an electric push rod are arranged on the frame body, the top of the oil tank is provided with the working panel, the rear side part of the oil tank is provided with the frame body, a workpiece hole is formed in the center of the working panel of the oil tank, a turntable is arranged below the workpiece hole, the bottom of the oil tank is provided with a motor, and a plurality of slotted holes are formed in the turntable; the bottom of the rotary table is connected with the top end of the rotating shaft, the bottom end of the rotating shaft is connected with an output shaft of the motor, and a compression cylinder or a hydraulic cylinder or an electric push rod is arranged at a position, far away from a workpiece hole, on the working panel; two sides of the rotating shaft in the oil tank are respectively provided with a buoy, and the buoys are polyhedrons or annular; the end part of a push rod of the compression cylinder or the hydraulic cylinder or the electric push rod is connected with the buoy;
a press plug corresponding to the rotary table is arranged right above the rotary table, the press plug is arranged in a telescopic device, the telescopic device comprises a telescopic cylinder, a pressing slide seat, a pressing disc and a slide rail, the slide rail is vertically arranged on a frame body, the slide rail is connected with the pressing slide seat in a sliding manner, the side part of the pressing slide seat is connected with a telescopic rod of the telescopic cylinder, the bottom of the pressing slide seat is rotatably connected with the pressing disc, and the bottom of the pressing disc is rotatably connected with the press plug;
the motor output shaft is connected with the bottom of a rotating shaft sleeve through a coupler, the rotating shaft sleeve is movably connected with the bottom of an oil tank, a rotating shaft is arranged in the rotating shaft sleeve, the bottom of a rotating disc is connected with the top end of the rotating shaft, a guide strip is arranged on the rotating shaft, a guide groove is arranged in the rotating shaft sleeve, and the guide groove is connected with the guide strip in a sliding manner;
a pressure spring or a gas spring is arranged between the rotating shaft sleeve and the bottom end of the rotating shaft; the bottom of the rotary table is connected with the top end of a pressure spring, and the bottom end of the pressure spring is connected with a spring seat arranged on the rotary shaft sleeve.
2. The oil immersion spin-drying device for mechanical parts according to claim 1, wherein the motor output shaft is connected with the bottom of a rotating shaft sleeve through a coupling, the rotating shaft sleeve is movably connected with the bottom of the oil tank, a rotating shaft is arranged in the rotating shaft sleeve, the bottom of the rotating disc is connected with the top end of the rotating shaft, an external spline is arranged at the bottom end of the rotating shaft, an internal spline is arranged in the rotating shaft sleeve, and the internal spline is in contact fit with the external spline.
3. The oil immersion spin-drying device for mechanical parts according to claim 1, wherein two cylinders are provided on the working panel.
4. The oil immersion spin-drying device for mechanical parts according to claim 1, wherein the motor is connected with a bottom flange of an oil tank, a fixed sleeve is arranged above the bottom of the oil tank, the bottom of the fixed sleeve is welded with the bottom of the oil tank, the top of the fixed sleeve is fixedly connected with the working panel through a support, and the output shaft of the motor is connected with the bottom end of the rotating shaft.
CN201910295330.0A 2019-04-12 2019-04-12 Oil immersion spin-drying device for mechanical parts Active CN109876995B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910295330.0A CN109876995B (en) 2019-04-12 2019-04-12 Oil immersion spin-drying device for mechanical parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910295330.0A CN109876995B (en) 2019-04-12 2019-04-12 Oil immersion spin-drying device for mechanical parts

Publications (2)

Publication Number Publication Date
CN109876995A CN109876995A (en) 2019-06-14
CN109876995B true CN109876995B (en) 2021-08-13

Family

ID=66937178

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910295330.0A Active CN109876995B (en) 2019-04-12 2019-04-12 Oil immersion spin-drying device for mechanical parts

Country Status (1)

Country Link
CN (1) CN109876995B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110538764B (en) * 2019-09-23 2020-12-11 金华市鸿图五金工具有限公司 Spring production and processing is with painting device
CN111250348B (en) * 2020-03-23 2022-03-08 重庆福伦德实业有限公司 Oil immersion rust prevention device and oil immersion rust prevention method for mechanical parts
CN111482324A (en) * 2020-04-29 2020-08-04 尤盛 Oil seal immersion device for automobile parts
CN111396544B (en) * 2020-05-12 2024-07-05 广东金力变速科技股份有限公司 Oiling device for gear box
CN111536225B (en) * 2020-05-12 2021-10-22 广东金力变速科技股份有限公司 Gear box oiling method
CN112371436A (en) * 2020-10-30 2021-02-19 汕头市达兴钢结构有限公司如皋分公司 Multifunctional small-sized steel connection structure oil immersion equipment
CN112495694B (en) * 2020-12-02 2022-03-11 苏州麦德迅医疗科技有限公司 Adhesive attaching device
CN113953139B (en) * 2021-11-26 2022-09-02 湖南工程学院 Stable and reliable anti-oxidation dipping device for graphite electrode

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679210A (en) * 1992-09-01 1994-03-22 Fujitsu Ten Ltd Dipping device
WO2000016887A1 (en) * 1998-09-24 2000-03-30 Glatt Systemtechnik Dresden Gmbh Device for drying pourable products and method for using same
CN103934151A (en) * 2014-05-08 2014-07-23 常州高克锈机械有限公司 Single-barrel dipping-coating all-in-one machine
CN106179798A (en) * 2016-08-31 2016-12-07 常州君合表面涂覆工程有限公司 Coating machine is got rid of in cellular leaching
CN206373015U (en) * 2016-09-23 2017-08-04 天津市薪启电力科技有限公司 The annular streamline of one kind automation RTV dip-coatings
CN207056925U (en) * 2017-06-02 2018-03-02 中山凯旋真空技术工程有限公司 Motor-stator dipped lacquer spin-drying device
CN109332083A (en) * 2018-12-06 2019-02-15 象山权友机械有限公司 A kind of oily device of auto parts profit
CN210279670U (en) * 2019-04-12 2020-04-10 刘忠义 Spare part bubble oil drier

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2832324Y (en) * 2005-11-07 2006-11-01 王文平 Rotating paint-steeping machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0679210A (en) * 1992-09-01 1994-03-22 Fujitsu Ten Ltd Dipping device
WO2000016887A1 (en) * 1998-09-24 2000-03-30 Glatt Systemtechnik Dresden Gmbh Device for drying pourable products and method for using same
CN103934151A (en) * 2014-05-08 2014-07-23 常州高克锈机械有限公司 Single-barrel dipping-coating all-in-one machine
CN106179798A (en) * 2016-08-31 2016-12-07 常州君合表面涂覆工程有限公司 Coating machine is got rid of in cellular leaching
CN206373015U (en) * 2016-09-23 2017-08-04 天津市薪启电力科技有限公司 The annular streamline of one kind automation RTV dip-coatings
CN207056925U (en) * 2017-06-02 2018-03-02 中山凯旋真空技术工程有限公司 Motor-stator dipped lacquer spin-drying device
CN109332083A (en) * 2018-12-06 2019-02-15 象山权友机械有限公司 A kind of oily device of auto parts profit
CN210279670U (en) * 2019-04-12 2020-04-10 刘忠义 Spare part bubble oil drier

Also Published As

Publication number Publication date
CN109876995A (en) 2019-06-14

Similar Documents

Publication Publication Date Title
CN109876995B (en) Oil immersion spin-drying device for mechanical parts
CN210279670U (en) Spare part bubble oil drier
CN211890442U (en) Stone processing equipment with dust collection assembly
CN204321544U (en) By ball bearing press-in to the press-in device in linear bearing
CN217141349U (en) Gearbox recycling and cleaning device
CN207223117U (en) A kind of simple gear shaving face deburring machine
CN204194348U (en) Low noise high strength roller bearing special cleaning machine
CN210147666U (en) Combined multifunctional intelligent environment-friendly spraying line for personalized comprehensive fitness training equipment
CN218284964U (en) Surface grinding device for forklift drag brake production
CN207839333U (en) A kind of lubricating oil spray equipment of efficient economizing
CN108160586A (en) A kind of mechanical gear cleaning device
CN115864989A (en) High-efficient cleaning device that photovoltaic board was used
CN212468610U (en) Stainless steel casting defect repairing and gluing device
CN209698592U (en) A kind of hardware drilling iron filings recyclable device
CN210676181U (en) Ultrasonic cleaner suitable for bearing cleaning
CN220006218U (en) Cooling device of band sawing machine
CN221793952U (en) Hardware processing compaction equipment
CN219728151U (en) Automatic car washer of bi-motor
CN217944437U (en) Cleaning device for press
CN116116984B (en) Composite stainless steel plate punching machine
CN216095103U (en) Oil pump cleaning assembly
CN220779545U (en) Workshop dust collection device
CN214888783U (en) Lubricating and oiling device for nut shaft driving lead screw machining
CN212055021U (en) Safety type electric cylinder driving air compressor protection device
CN221776643U (en) Coating storage device for coating processing

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
GR01 Patent grant
GR01 Patent grant