CN112122590A - Quick clamping device that wheel hub made for fire control fan - Google Patents

Quick clamping device that wheel hub made for fire control fan Download PDF

Info

Publication number
CN112122590A
CN112122590A CN202011016551.9A CN202011016551A CN112122590A CN 112122590 A CN112122590 A CN 112122590A CN 202011016551 A CN202011016551 A CN 202011016551A CN 112122590 A CN112122590 A CN 112122590A
Authority
CN
China
Prior art keywords
arm
wheel hub
mounting
clamping arms
sliding sleeve
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
Application number
CN202011016551.9A
Other languages
Chinese (zh)
Inventor
易焕新
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.)
Hunan Runhua New Material Co ltd
Original Assignee
Hunan Runhua New Material 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 Hunan Runhua New Material Co ltd filed Critical Hunan Runhua New Material Co ltd
Priority to CN202011016551.9A priority Critical patent/CN112122590A/en
Publication of CN112122590A publication Critical patent/CN112122590A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D29/00Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
    • B22D29/04Handling or stripping castings or ingots
    • B22D29/06Strippers actuated by fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00Gripping heads and other end effectors
    • B25J15/0052Gripping heads and other end effectors multiple gripper units or multiple end effectors
    • B25J15/0057Gripping heads and other end effectors multiple gripper units or multiple end effectors mounted on a turret
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00Gripping heads and other end effectors
    • B25J15/08Gripping heads and other end effectors having finger members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a quick clamping device for manufacturing a hub for a fire-fighting fan, which comprises a fixed seat, a floating plate, a driving element, a mounting seat, a servo motor, a rotating shaft and a mounting rod, wherein one end of the mounting rod is provided with a mounting arm, two ends of the mounting arm are respectively hinged with a clamping arm, the clamping arms are driven by a driving assembly to rotate, so that the two clamping arms synchronously and reversely rotate to clamp or unclamp the hub. The invention has the beneficial effects that: the clamping arms are driven by the driving assembly to be opened/closed relatively, and then two adjacent clamping arms can clamp the wheel hub, the clamping arms are driven by the driving element to vertically move, the clamping arms can adapt to dies with different heights to clamp, the dies can be separated from the forming equipment, and due to the fact that the plurality of clamping arms can be driven by the servo motor to exchange positions, multi-station processing can be achieved, practicability is improved, the structure is simple, the size is compact, the cost is low, and the clamping arms are not prone to damage.

Description

Quick clamping device that wheel hub made for fire control fan
Technical Field
The invention relates to the field of processing equipment for manufacturing a hub of a fire-fighting fan, in particular to a quick clamping device for manufacturing the hub of the fire-fighting fan.
Background
The fire-fighting fan is an industrial fan which can continuously operate for more than 60 minutes at the high temperature of 300 ℃ and is not damaged for 20 hours/time at the temperature of 100 ℃, the fire-fighting fan is a widely applied fire-fighting smoke exhaust machine, when a fire disaster occurs, the fire-fighting fan can timely exhaust indoor dense smoke to the outdoor, favorable conditions can be created for evacuation and evacuation of indoor trapped people, favorable conditions are created for rescue of fire fighters, the fire rescue difficulty is reduced, the working efficiency of the fire fighters is improved, and the loss caused by the fire disaster is reduced.
The wheel hub on the fire control fan is generally processed by a mould in the manufacturing process, namely the wheel hub is formed by the mould, and during the forming process, the high-temperature molten raw material is fed into the mould for forming, and the material is required to be taken after the forming.
In order to solve the problems, a quick clamping device manufactured by a hub for a fire-fighting fan is provided.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a quick clamping device for manufacturing a hub for a fire-fighting fan, and the invention provides the following technical scheme for solving the technical problems:
the invention provides a quick clamping device for manufacturing a hub for a fire-fighting fan, which comprises a fixed seat arranged on hub forming equipment, a floating plate is arranged above the fixed seat and driven by a driving element vertically arranged on the fixed seat to vertically move, the floating plate is provided with a mounting seat, a servo motor is vertically arranged on the mounting seat, the servo motor is connected with a rotating shaft in a driving way, a plurality of mounting rods extending to the radial outer side of the rotating shaft are arranged on the rotating shaft along the axial array of the rotating shaft, a mounting arm is horizontally arranged at one end of each mounting rod far away from the rotating shaft, the two ends of the length direction of the mounting arm are vertically hinged with clamping arms, the clamping arms are driven by the driving assembly to rotate along the hinged positions of the mounting arms, and the two clamping arms hinged on the same mounting arm synchronously and reversely rotate to clamp or loosen the hub.
Preferably, two opposite sides of the fixed seat are respectively provided with a plurality of guide posts, and the floating plate is provided with through holes for the guide posts to pass through in a sliding fit manner.
Preferably, the through hole of the floating plate is embedded with bushings, and the bushings are sleeved on the guide columns in a one-to-one corresponding sliding fit mode.
Preferably, the driving element is a lifting cylinder.
Preferably, drive assembly includes that the sliding sleeve suit was on the installation pole and was made by the magnetic conduction material, the relative both sides of sliding sleeve respectively articulate has the connecting rod, be equipped with on the centre gripping arm to keeping away from the rotor arm that installation arm direction slope extended, the rotor arm articulates on corresponding connecting rod, makes when the sliding sleeve slides towards being close to installation arm direction, the drive is two the centre gripping arm is close to relatively in order to press from both sides tight wheel hub, the spacing ring has been cup jointed on the installation pole, the spacing ring is located between sliding sleeve and the axis of rotation, the annular electromagnet has been cup jointed on the installation pole, the annular electromagnet is located between sliding sleeve and the installation arm, be equipped with an extension spring between sliding sleeve and the spacing ring, the extension spring suit is on the installation pole, and its both ends weld respectively on sliding sleeve, the spacing ring.
Preferably, the fixing seat is provided with a plurality of screw mounting holes.
Preferably, the outer wall of the clamping arm is coated with a rubber layer.
Compared with the prior art, the invention has the following beneficial effects: the clamping arms are driven by the driving component to be relatively opened/closed, so that two adjacent clamping arms can clamp the wheel hub, the driving component drives the clamping arms to vertically move, the clamping arms can adapt to dies with different heights to clamp, in addition, the dies can be separated from the forming equipment, because the servo motor can drive the plurality of clamping arms to exchange positions, so that multi-station processing can be realized, and the practicability is improved, the driving component comprises an annular electromagnet, a rotating arm, a tension spring, a limiting ring and a connecting rod, when the wheel hub is clamped, the annular electromagnet is electrified to generate magnetism, the sliding sleeve is driven to slide towards the annular electromagnet, so that the two adjacent clamping arms are relatively close to each other and clamp the wheel hub, when the clamping is loosened, only the power supply of the annular electromagnet is needed to be cut off, the tension spring generates tension on the sliding sleeve, and the clamping arms rotate reversely, realize the pine and press from both sides, moreover, the steam generator is simple in structure, the volume is compacter, and the cost is lower, it is not fragile, set up the bush, the bush slides on the guide post, make the board that floats can not produce direct contact with the guide post, when the vertical removal of board that floats like this, the guide post can not produce mechanical friction to the board that floats, thereby make the mechanical wear and tear of board that floats reduce, the life of board that floats has been promoted to at least a certain extent, the manufacturing cost of this device has been reduced on the whole, set up the guide post, and through the board sliding fit suit of floating on the guide post, vertical removal through the guide post to the board is spacing like this, avoid floating the board when its vertical removal by the drive element drive, the board that floats produces the rotation phenomenon, and then the position that leads to the centre gripping arm produces and moves, thereby the centre gripping.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of an assembly structure of a quick clamping device manufactured by a hub for a fire fighting fan according to the present invention;
FIG. 2 is a schematic top view of the drive assembly of the present invention;
in the figure: 1-a fixed seat, 2-a lifting cylinder, 3-a guide column, 4-a floating plate, 5-a bushing, 6-a mounting seat, 7-a servo motor, 8-a clamping arm, 9-a mounting arm, 10-a ring electromagnet, 11-a tension spring, 12-a limiting ring, 13-a mounting rod, 14-a rotating arm, 15-a connecting rod, 16-a sliding sleeve and 17-a rotating shaft.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1-2, a quick clamping device for manufacturing a hub for a fire-fighting fan comprises a fixed seat 1 installed on a hub forming device, a floating plate 4 is arranged above the fixed seat 1, the floating plate 4 is driven by a driving element vertically installed on the fixed seat 1 to vertically move, an installation seat 6 is arranged on the floating plate 4, a servo motor 7 is vertically installed on the installation seat 6, a rotating shaft 17 is connected to the servo motor 7 in a driving manner, a plurality of installation rods 13 extending to the radial outer side of the rotating shaft 17 are arranged on the rotating shaft 17 in an axial array manner, an installation arm 9 is horizontally arranged at one end of the installation rod 13 far away from the rotating shaft 17, clamping arms 8 are vertically hinged at two ends in the length direction of the installation arm 9, the clamping arms 8 are driven by a driving component to rotate along the hinged positions with the installation arms 9, so that two clamping arms 8 hinged on the same installation arm 9 synchronously and reversely rotate, to clamp or unclamp the hub.
In this embodiment, as preferably, the two opposite sides of the fixing base 1 are respectively provided with a plurality of guide posts 3, the floating plate 4 is provided with a through hole for the guide posts 3 to slide and pass through, the guide posts 3 are arranged, and the floating plate 4 is sleeved on the guide posts 3 in a sliding and matching manner, so that the vertical movement of the floating plate 4 is limited by the guide posts 3, and the floating plate 4 is prevented from rotating when driven to vertically move by a driving element, and further the position of the clamping arm 8 is prevented from running, so that the clamping precision of the clamping arm 8 is influenced.
In this embodiment, as preferably, the embedded bush 5 that is equipped with of through-hole of floating plate 4, bush 5 one-to-one sliding fit suit sets up on guide post 3, sets up bush 5, and bush 5 slides on guide post 3 for floating plate 4 can not produce direct contact with guide post 3, and when floating plate 4 was vertical when removing, guide post 3 can not produce mechanical friction to floating plate 4 like this, thereby makes the mechanical wear of floating plate 4 reduce, has promoted the life of floating plate 4 to a certain extent at least, has reduced the manufacturing cost of this device on the whole.
In the present embodiment, the driving element is preferably a lifting cylinder 2, but the driving element may be other linear driving elements, such as a hydraulic cylinder, an electric push rod, and the like.
In this embodiment, preferably, the driving assembly includes a sliding sleeve 16 which is slidably sleeved on the mounting rod 13 and made of a magnetic conductive material, two opposite sides of the sliding sleeve 16 are respectively hinged with a connecting rod 15, the holding arm 8 is provided with a rotating arm 14 which extends obliquely in a direction away from the mounting arm 9, the rotating arm 14 is hinged on the corresponding connecting rod 15, so that when the sliding sleeve 16 slides in a direction close to the mounting arm 9, the two holding arms 8 are driven to approach relatively to clamp the hub, the mounting rod 13 is sleeved with a limiting ring 12, the limiting ring 12 is located between the sliding sleeve 16 and a rotating shaft 17, the mounting rod 13 is sleeved with an annular electromagnet 10, the annular electromagnet 10 is located between the sliding sleeve 16 and the mounting arm 9, a tension spring 11 is arranged between the sliding sleeve 16 and the limiting ring 12, and the tension spring 11 is sleeved on the mounting rod 13, and its both ends weld respectively on sliding sleeve 16, spacing ring 12, two adjacent centre gripping arms 8 are after pressing from both sides tight wheel hub, and sliding sleeve 6 is supported with annular electromagnet 10 terminal surface, promptly, annular electromagnet 10 and spacing ring 12 are spacing to the removal of sliding sleeve 16 jointly, avoid the expansion of centre gripping arm 8 \ close the stroke too big, produce the interference phenomenon with external equipment, annular electromagnet 10 is supplied power to it by external power supply, and its power on-off time parameter can be set for by external control ware (such as PLC controller module etc.) to a plurality of annular electromagnets 10 simultaneously, comes the control of the on-off time of annular electromagnet 10 through external control ware like this to make centre gripping arm 8 can be more smoothly with wheel hub centre gripping to suitable position.
In this embodiment, as preferred, be equipped with a plurality of screw mounting holes on fixing base 1, use the screw or the bolt with screw mounting hole adaptation to pass screw or bolt through screw mounting hole, and then with fixing base 1 demountable installation on the former of outside, can set the screw mounting hole to waist shape hole form simultaneously, can finely tune the mounted position of fixing base 1 like this in certain extent, and then make centre gripping arm 8 can better correspond the wheel hub mould, improve the centre gripping precision.
In this embodiment, it is preferable that the outer wall of the clamping arm 8 is coated with a rubber layer (not shown), and the rubber layer is provided, and the rubber layer has a large friction coefficient, so that when the clamping arm 8 clamps the hub mold, the friction between the clamping arm 8 and the surface of the hub mold is increased through the rubber layer, and the clamping stability is improved.
The working principle of the invention when in use is as follows: the lifting cylinder 3 drives the mounting seat 6 to move downwards, so that two clamping arms 8 respectively correspond to two opposite sides of the hub die, then the external controller controls the circular electromagnet 10 corresponding to the hub mould on the forming device to be electrified, so that the circular electromagnet 10 generates magnetism, the sliding sleeve 16 made of magnetic conductive material is driven to move towards the direction of the circular electromagnet 10, the two clamping arms 8 clamp the hub mould, then the lifting cylinder 3 drives the mounting seat 6 to move upwards, then the external controller controls the servo motor to be electrified and rotate, so that the clamping arm 8 which clamps the hub die rotates to the blanking position, then the annular electromagnet 10 is powered off and loses magnetism, at the moment, the sliding sleeve is driven to be far away from the annular electromagnet 10 under the action of the tension spring, and then the two clamping arms 8 are separated from the clamping state of the hub die, and then the hub die falls to a blanking position.
Finally, it should be noted that: 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 changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a quick clamping device that wheel hub made for fire control fan which characterized in that: the wheel hub forming device comprises a fixing seat (1) installed on a wheel hub forming device, wherein a floating plate (4) is arranged above the fixing seat (1), the floating plate (4) is driven to vertically move by a driving element vertically installed on the fixing seat (1), a mounting seat (6) is arranged on the floating plate (4), a servo motor (7) is vertically installed on the mounting seat (6), a rotating shaft (17) is connected onto the servo motor (7) in a driving mode, a plurality of installation rods (13) extending to the radial outer side of the rotating shaft (17) are arranged on the rotating shaft (17) along the axial array of the rotating shaft (17), an installation arm (9) is horizontally arranged at one end, away from the rotating shaft (17), of each end of the installation arm (9) in the length direction is vertically hinged with a clamping arm (8), and the clamping arms (8) are driven to rotate along the hinged position with the installation arm (9) by, two clamping arms (8) which are hinged and installed on the same installation arm (9) synchronously rotate in opposite directions so as to clamp or unclamp the hub.
2. The quick clamping device manufactured by the wheel hub for the fire fighting fan as claimed in claim 1, characterized in that: the two opposite sides of the fixed seat (1) are respectively provided with a plurality of guide columns (3), and the floating plate (4) is provided with through holes for the guide columns (3) to pass through in a sliding fit manner.
3. The quick clamping device manufactured by the wheel hub for the fire fighting fan as claimed in claim 2, characterized in that: the through hole of floating plate (4) is embedded with bush (5), bush (5) one-to-one corresponds the sliding fit suit on guide post (3).
4. The quick clamping device manufactured by the wheel hub for the fire fighting fan as claimed in claim 1, characterized in that: the driving element is a lifting cylinder (2).
5. The quick clamping device manufactured by the wheel hub for the fire fighting fan as claimed in claim 1, characterized in that: the driving assembly comprises a sliding sleeve (16) which is sleeved on the mounting rod (13) in a sliding mode and is made of a magnetic conductive material, connecting rods (15) are hinged to two opposite sides of the sliding sleeve (16), rotating arms (14) which extend in an inclined mode towards the direction far away from the mounting arm (9) are arranged on the clamping arms (8), the rotating arms (14) are hinged to the corresponding connecting rods (15), when the sliding sleeve (16) slides towards the direction close to the mounting arm (9), the two clamping arms (8) are driven to relatively approach to clamp a hub, a limiting ring (12) is sleeved on the mounting rod (13), the limiting ring (12) is located between the sliding sleeve (16) and the rotating shaft (17), an annular electromagnet (10) is sleeved on the mounting rod (13), and the annular electromagnet (10) is located between the sliding sleeve (16) and the mounting arm (9), be equipped with one extension spring (11) between sliding sleeve (16) and spacing ring (12), extension spring (11) suit is on installation pole (13), and its both ends weld respectively on sliding sleeve (16), spacing ring (12).
6. The quick clamping device manufactured by the wheel hub for the fire fighting fan as claimed in claim 1, characterized in that: the fixing seat (1) is provided with a plurality of screw mounting holes.
7. The quick clamping device manufactured by the wheel hub for the fire fighting fan as claimed in claim 1, characterized in that: the outer wall of the clamping arm (8) is coated with a rubber layer.
CN202011016551.9A 2020-09-24 2020-09-24 Quick clamping device that wheel hub made for fire control fan Pending CN112122590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011016551.9A CN112122590A (en) 2020-09-24 2020-09-24 Quick clamping device that wheel hub made for fire control fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011016551.9A CN112122590A (en) 2020-09-24 2020-09-24 Quick clamping device that wheel hub made for fire control fan

Publications (1)

Publication Number Publication Date
CN112122590A true CN112122590A (en) 2020-12-25

Family

ID=73839841

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011016551.9A Pending CN112122590A (en) 2020-09-24 2020-09-24 Quick clamping device that wheel hub made for fire control fan

Country Status (1)

Country Link
CN (1) CN112122590A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112828873A (en) * 2021-02-21 2021-05-25 桂林航天工业学院 Multi-degree-of-freedom mechanical arm
CN114770574A (en) * 2022-04-20 2022-07-22 连云港中远海运特种装备制造有限公司 Clamping device for rapidly clamping pressure vessel seal head

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2411112A1 (en) * 1974-03-08 1975-10-02 Dango & Dienenthal Kg Hydraulic cylinder for ingot clamping tongs - contains two concentric pistons connected to two separate pairs of clamping jaws
CN203197227U (en) * 2013-03-29 2013-09-18 江苏新创雄铝制品有限公司 Hub casting workblank taking device
CN207471553U (en) * 2017-10-18 2018-06-08 厦门东江环保科技有限公司 Industrial wastes incineration system
CN209922645U (en) * 2019-05-20 2020-01-10 安徽省三环康乐包装材料有限公司 Aseptic carton raw and other materials coiled material storage device
CN209939876U (en) * 2019-05-20 2020-01-14 安徽省三环康乐包装材料有限公司 Aseptic carton snatchs mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2411112A1 (en) * 1974-03-08 1975-10-02 Dango & Dienenthal Kg Hydraulic cylinder for ingot clamping tongs - contains two concentric pistons connected to two separate pairs of clamping jaws
CN203197227U (en) * 2013-03-29 2013-09-18 江苏新创雄铝制品有限公司 Hub casting workblank taking device
CN207471553U (en) * 2017-10-18 2018-06-08 厦门东江环保科技有限公司 Industrial wastes incineration system
CN209922645U (en) * 2019-05-20 2020-01-10 安徽省三环康乐包装材料有限公司 Aseptic carton raw and other materials coiled material storage device
CN209939876U (en) * 2019-05-20 2020-01-14 安徽省三环康乐包装材料有限公司 Aseptic carton snatchs mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112828873A (en) * 2021-02-21 2021-05-25 桂林航天工业学院 Multi-degree-of-freedom mechanical arm
CN114770574A (en) * 2022-04-20 2022-07-22 连云港中远海运特种装备制造有限公司 Clamping device for rapidly clamping pressure vessel seal head

Similar Documents

Publication Publication Date Title
CN112122590A (en) Quick clamping device that wheel hub made for fire control fan
CN204954831U (en) Servo manipulator
CN208788064U (en) A kind of stable fixed device of steel pipe processing
CN210877237U (en) A mould for automobile parts processing
CN206676961U (en) A kind of pneumatic metal plate bender
CN111346450B (en) Processing equipment for filter element in air purifier
CN111906969B (en) Megawatt-level fan blade multi-die web secondary die assembly universal device
CN206009618U (en) A kind of stator core stamping sheet crimps processing unit (plant)
CN210029281U (en) Intelligent lifting type stacking robot
CN114346636B (en) Automatic assembling equipment and method for multipurpose O-shaped sealing ring
CN207058217U (en) A kind of novel bearing inner-diameter grinding machine device
CN109226342A (en) Apparatus for correcting after a kind of deformation of kitchen ventilator rigid support
CN113225930B (en) Flexible circuit board protection film tectorial membrane device
CN210877508U (en) Full-automatic mould unloading equipment
CN208496336U (en) A kind of process equipment
CN208712752U (en) A kind of octagonal mechanical mechanism for clamp springs
CN221047745U (en) Riveting mechanism on contact
CN205996061U (en) A kind of manufacture device of spare part in common use
CN111468481A (en) Iron casting back-cleaning assembly line
CN1207837C (en) Automatic regulation device for assembling bearings of electrical motors
CN214067413U (en) Hot melt nut machine leak hunting mechanism
CN220797386U (en) Carbon brush forming device
CN219483904U (en) Taper hole stamping device
CN114875219B (en) Gas turbine forging surface heat treatment equipment
CN115805398B (en) Welding robot

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20201225