CN203358058U - Laser marker for tubular workpiece - Google Patents

Laser marker for tubular workpiece Download PDF

Info

Publication number
CN203358058U
CN203358058U CN 201320449515 CN201320449515U CN203358058U CN 203358058 U CN203358058 U CN 203358058U CN 201320449515 CN201320449515 CN 201320449515 CN 201320449515 U CN201320449515 U CN 201320449515U CN 203358058 U CN203358058 U CN 203358058U
Authority
CN
China
Prior art keywords
installation component
installing plate
laser marking
tubular workpiece
marking machine
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.)
Expired - Lifetime
Application number
CN 201320449515
Other languages
Chinese (zh)
Inventor
唐群生
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.)
SHENZHEN IT LASER SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN IT LASER SCIENCE & TECHNOLOGY 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 SHENZHEN IT LASER SCIENCE & TECHNOLOGY Co Ltd filed Critical SHENZHEN IT LASER SCIENCE & TECHNOLOGY Co Ltd
Priority to CN 201320449515 priority Critical patent/CN203358058U/en
Application granted granted Critical
Publication of CN203358058U publication Critical patent/CN203358058U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Laser Beam Processing (AREA)

Abstract

A laser marker for tubular workpieces comprises a frame, a marking device arranged on the frame for marking workpieces, a first stepping motor, and a first installing assembly and a second installing assembly oppositely arranged on the frame, wherein the first installing assembly and the second installing assembly are each comprising an installing plate and an annular conveyor belt which is provided with a plurality of workpiece clamping heads along the extending direction, the two annular conveyor belts when driven by the first stepping motor are conveyed along an annular route, conveying tracks are formed on the installing plates, and the tail ends of the workpiece clamping heads are movably inserted in the conveying tracks. Since a first installing assembly and a second installing assembly are employed, a plurality of workpieces are clamped through the annular conveyor belts, and the workpieces are automatically fed to realized the purpose of continuous marking. The laser marker saves time, improves work efficiency, and satisfies the requirement for mass production.

Description

Laser marking machine for tubular workpiece
Technical field
The utility model relates to a kind of laser marking machine for tubular workpiece.
Background technology
Tubular workpiece (such as fluorescent tube etc.) often marks by pad printer and ink jet printer.But the automaticity of pad printer is not high, cause its printing efficiency low; The operation of ink jet printer is comparatively loaded down with trivial details, and consumptive material is larger, causes its operating cost higher.And, in order to overcome this defect, in industry, utilize laser marking machine to carry out mark to tubular workpiece.This laser marking machine has that signature velocity is fast, the positioning precision advantages of higher, and enjoys people to favor.And the use procedure of laser marking machine is as follows: before mark, first by single clamping workpiece between two clamping heads of laser marking machine, then utilize marking device to carry out mark, after this workpiece mark completes, manually by its dismounting, the more other workpiece of clamping, mark in this way constantly circulates.But after the mark action that completes last workpiece, after needing this workpiece of dismounting, can reinstall next workpiece and carry out mark, consuming time longer, cause its working (machining) efficiency lower, can't meet production requirement in batches.
The utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of laser marking machine for tubular workpiece, and it can save process time, improves working (machining) efficiency, meets production requirement in batches.
For addressing the above problem, the technical scheme that the utility model adopts is as follows:
For the laser marking machine of tubular workpiece, comprise frame, be arranged on frame and for workpiece being carried out to the marking device of mark; The first installation component and second installation component that should also comprise the first stepper motor, and be arranged on frame and be oppositely arranged for the laser marking machine of tubular workpiece; Described the first installation component and the second installation component include installing plate, are positioned at the endless belt conveyer on installing plate, on described endless belt conveyer, along its bearing of trend, a plurality of piece-holder heads are installed; The quantity of the piece-holder head on the endless belt conveyer of this first installation component and the second installation component is equal, and corresponding one by one; These two endless belt conveyers according to the circuit synchronous transfer, are delivered to the marking device opposite position and carry out mark for being installed in workpiece in the piece-holder head under the driving of the first stepper motor; Be formed with delivery track on described installing plate, the end activity of described piece-holder head is inlaid in delivery track.
Be fixed with the guide rail extended along its length on described frame, installing plate on the first installation component is fixed on frame, the installing plate of the second installation component is arranged on guide rail and can moves along the bearing of trend of guide rail, should also comprise the travel mechanism that the installing plate for driving the second installation component moves for the laser marking machine of tubular workpiece.
Described travel mechanism comprises along the frame length direction extends and is installed in rotation on frame and/or the screw mandrel on the installing plate of the first installation component, be fixed with handwheel on the end of this screw mandrel, be provided with screwed hole on the installing plate of the second installation component, described wire rod thread is connected in screwed hole.
Be fixed with a plurality of locating pieces on described endless belt conveyer, on this locating piece, be provided with installing hole, each piece-holder head is corresponding one by one with locating piece respectively, and is inserted into rotationally in the installing hole of the locating piece corresponding with it.
The first installation component and the second installation component include clamping head, the drive unit for driving the clamping head to rotate be installed in rotation on installing plate, and these two clamping heads synchronously rotate under the driving of each self-corresponding drive unit; Described clamping head, between the both ends of delivery track, and also is provided with clamping position on the clamping head, the two ends of this clamping all are made as opening; Arranging of this clamping position needs to meet: when the end of piece-holder head moves to the clamping position, this piece-holder head is given birth to and is synchronizeed rotation with the clamping hair under the restriction of clamping position.
Described marking device be positioned at the clamping head above or below.
Described drive unit is the second stepper motor.
Driving wheel and driven pulley all are installed on installing plate, described endless belt conveyer winding is on driving wheel and driven pulley, should also comprise the power transmission shaft connected with the output shaft synchronous of the first stepper motor for the laser marking machine of tubular workpiece, this power transmission shaft is connected with two driving wheels.
Described marking device is positioned at a side of endless belt conveyer.
Compared to existing technology, the beneficial effects of the utility model are:
The utility model is by adopting the design of the first installation component and the second installation component, can utilize endless belt conveyer a plurality of workpiece of clamping simultaneously, and the plurality of workpiece is carried out to self-feeding, so that realize the continuous mark of a plurality of workpiece, can reach the purpose of saving time, improve working (machining) efficiency, meet the demand of batch production; And, by adopting the design of drive unit and clamping head, can carry out two-sided mark or circumferentially mark on a large scale to workpiece; And this laser marking machine also is applicable to the workpiece of different length, the scope of application is wider.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The structural representation that Fig. 2 is other direction of the present utility model;
The structural representation that Fig. 3 is the first installation component in the utility model;
The structural representation that Fig. 4 is the clamping head in the utility model;
Wherein, 1, frame; 2, marking device; 3a, the first installation component; 3b, the second installation component; 31, installing plate; 32, delivery track; 33, piece-holder head; 34, driving wheel; 41, the first stepper motor; 42, power transmission shaft; 51, guide rail; 52, slide block; 53, screw mandrel; 54, handwheel; 61, clamping head; 62, drive unit; 7, workpiece.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further, understand the utility model technical thought required for protection so that clearer.
As shown in Figure 1,2,3, 4, be the laser marking machine of the utility model for tubular workpiece, comprise frame 1, be arranged on frame 1 and for workpiece 7 being carried out to the marking device 2 of mark; The first installation component 3a and the second installation component 3b that should also comprise the first stepper motor 41, and be arranged on frame 1 and be oppositely arranged for the laser marking machine of tubular workpiece; Described the first installation component 3a and the second installation component 3b include installing plate 31, are positioned at the endless belt conveyer on installing plate 31, on described endless belt conveyer, along its bearing of trend, a plurality of piece-holder 33 are installed; The quantity of the piece-holder on the endless belt conveyer of this first installation component 3a and the second installation component 3b 33 equates, and corresponding one by one, the two ends of workpiece 7 is arranged in two piece-holder on endless belt conveyer 33 accordingly being convenient to; These two endless belt conveyers according to the circuit synchronous transfer, are delivered to marking device 2 opposite positions and carry out mark for being installed in workpiece 7 in piece-holder 33 under the driving of the first stepper motor 41; Be formed with delivery track 32 on described installing plate 31, the end activity of described piece-holder 33 is inlaid in delivery track 32; As shown in Figure 2, described marking device 2 is positioned at a side of endless belt conveyer.In use, a plurality of workpiece 7 can be installed in accordingly in two piece-holder on endless belt conveyer 33, then utilize endless belt conveyer that a plurality of workpiece 7 are carried, treat that workpiece 7 is delivered to and marking device 2 opposite positions, can utilize 2 pairs of workpiece of marking device 7 to carry out mark, therefore, by adopting the design of the first installation component 3a and the second installation component 3b, can realize the automatic transport of a plurality of workpiece 7, also can realize the continuous mark of a plurality of workpiece 7 simultaneously, thereby reach the purpose of saving time, improve working (machining) efficiency, meet the demand of batch production.
Wherein, this marking device 2 adopts existing structure, for example, can comprise galvanometer, camera lens, laser generator.And preferred, in order to detect workpiece 7, in piece-holder 33, whether be in place, can also on installing plate 31, photoelectric sensor be installed.
Described the first stepper motor 41 is passed to power synchronous on two endless belt conveyers by power transmission shaft 42.Concrete, driving wheel 34 and driven pulley all are installed on installing plate 31, described endless belt conveyer winding is on driving wheel 34 and driven pulley, and described power transmission shaft 42 connects with the output shaft synchronous of the first stepper motor 41 by belt wheel Timing Belt assembly.On the output shaft of the first stepper motor 41, driving pulley is installed, be fixed with driven pulley on described power transmission shaft 42, the outside of driving pulley and driven pulley is arranged with Timing Belt with for driving pulley and driven pulley are synchronously connected, and the two ends of described power transmission shaft 42 are connected on the driving wheel 34 of two installing plates 31.In use, the first stepper motor 41 drives driving pulley and rotates, and drives driven pulley and power transmission shaft 42 rotations by Timing Belt, then by power transmission shaft 42, drives two driving wheels 34 and rotates, thereby drive two endless belt conveyer synchronous transfer.Certainly, this first stepper motor 41 can also be passed to power synchronous on two endless belt conveyers by other modes such as gear teeth chain components.
Be fixed with the guide rail 51 extended along its length on described frame 1, installing plate 31 on the first installation component 3a is fixed on frame 1, the installing plate 31 of the second installation component 3b is arranged on guide rail 51 and can moves along its bearing of trend, concrete, be fixedly connected with slide block 52 on the installing plate 31 of described the second installation component 3b, this slide block 52 is sleeved on guide rail 51 slidably.Should also comprise the travel mechanism that the installing plate 31 for driving the second installation component 3b moves for the laser marking machine of tubular workpiece.Described travel mechanism comprise along frame 1 length direction extend and be installed in rotation on frame 1 and/or the installing plate 31 of the first installation component 3a on screw mandrel 53, be fixed with handwheel 54 on the end of this screw mandrel 53, be provided with screwed hole on the installing plate 31 of the second installation component 3b, described screw mandrel 53 is threaded in screwed hole.Wherein, this screw mandrel 53 is installed in rotation on the mount pad on frame 1, and/or on the installing plate 31 on the first installation component 3a.In use, by rotating handwheel 54, can drive the installing plate 31 of the second installation component 3b to slide on guide rail 51, thereby regulate the distance between two installing plates 31, so that it is applicable to the workpiece 7 of different length.
Preferably, be fixed with a plurality of locating pieces on described endless belt conveyer, on this locating piece, be provided with installing hole, each piece-holder 33 is corresponding one by one with locating piece respectively, and is inserted into rotationally in the installing hole of the locating piece corresponding with it.Preferably, endless belt conveyer is joined end to end and is surrounded closed ring-type by a plurality of links unit, and two link unit of arbitrary neighborhood are rotatably connected by pivot, and described locating piece is fixed on each link unit accordingly.
The first installation component 3a and the second installation component 3b include clamping head 61, the drive unit 62 for driving clamping head 61 to rotate be installed in rotation on installing plate 31, and these two clamping heads 61 synchronously rotate under the driving of each self-corresponding drive unit 62; Described clamping head 61, between the both ends of delivery track 32, and also is provided with clamping position on clamping head 61, the two ends of this clamping position all are made as opening, to be convenient to piece-holder 33, passes in and out; Arranging of this clamping position needs to meet: when the end of piece-holder 33 moves to the clamping position, this piece-holder of restriction clamped by utilizations 33 is synchronizeed rotation with clamping head 61.Described marking device 2 be positioned at clamping head 61 above or below.Concrete, described drive unit 62 is the second stepper motor.Certainly, for the ease of controlling and underspeeding, this drive unit 62 can also comprise controller, the decelerator be connected with the second stepper motor.In use, piece-holder 33 enters in the clamping position of clamping head 61 under the induced effect of endless belt conveyer, and can drive clamping head 61 by the second stepper motor, rotate, thereby drive 33 rotation of this piece-holder, so that piece-holder 33 an interior workpiece 7 are carried out to 360 degree rotations, thereby realize two-sided mark, certainly, also can carry out circumferentially mark on a large scale.
In use, can be according to the length of workpiece 7, rotate handwheel 54 to regulate the distance between two installing plates 31, then the two ends of workpiece 7 are arranged on respectively accordingly on piece-holder on two endless belt conveyers 33; Can drive two endless belt conveyer synchronous transfer by starting the first stepper motor 41, so that workpiece 7 is carried, treat that workpiece is delivered in the clamping position of clamping head 61, marking device 2 work are carried out mark to workpiece 7, when needs carry out two-sided mark, utilize the second stepping driven by motor clamping head 61 to rotate, overturn to drive workpiece 7; After this workpiece mark completes, endless belt conveyer is rotated further, and next workpiece 7 is delivered in clamping head 61, carries out in this way periodic duty.
Above-mentioned embodiment is only preferred embodiment of the present utility model; can not limit with this scope of the utility model protection, the variation of any unsubstantiality that those skilled in the art does on basis of the present utility model and replacement all belong to the utility model scope required for protection.

Claims (9)

1. for the laser marking machine of tubular workpiece, comprise frame, be arranged on frame and for workpiece being carried out to the marking device of mark; It is characterized in that: the first installation component and second installation component that should also comprise the first stepper motor, and be arranged on frame and be oppositely arranged for the laser marking machine of tubular workpiece; Described the first installation component and the second installation component include installing plate, are positioned at the endless belt conveyer on installing plate, on described endless belt conveyer, along its bearing of trend, a plurality of piece-holder heads are installed; The quantity of the piece-holder head on the endless belt conveyer of this first installation component and the second installation component is equal, and corresponding one by one; These two endless belt conveyers according to the circuit synchronous transfer, are delivered to the marking device opposite position and carry out mark for being installed in workpiece in the piece-holder head under the driving of the first stepper motor; Be formed with delivery track on described installing plate, the end activity of described piece-holder head is inlaid in delivery track.
2. the laser marking machine for tubular workpiece as claimed in claim 1, it is characterized in that: be fixed with the guide rail extended along its length on described frame, installing plate on the first installation component is fixed on frame, the installing plate of the second installation component is arranged on guide rail and can moves along the bearing of trend of guide rail, should also comprise the travel mechanism that the installing plate for driving the second installation component moves for the laser marking machine of tubular workpiece.
3. the laser marking machine for tubular workpiece as claimed in claim 2, it is characterized in that: described travel mechanism comprises along the frame length direction extends and is installed in rotation on frame and/or the screw mandrel on the installing plate of the first installation component, be fixed with handwheel on the end of this screw mandrel, be provided with screwed hole on the installing plate of the second installation component, described wire rod thread is connected in screwed hole.
4. the laser marking machine for tubular workpiece as claimed in claim 1, it is characterized in that: be fixed with a plurality of locating pieces on described endless belt conveyer, be provided with installing hole on this locating piece, each piece-holder head is corresponding one by one with locating piece respectively, and is inserted into rotationally in the installing hole of the locating piece corresponding with it.
5. the laser marking machine for tubular workpiece as claimed in claim 4, it is characterized in that: the first installation component and the second installation component include clamping head, the drive unit for driving the clamping head to rotate be installed in rotation on installing plate, and these two clamping heads synchronously rotate under the driving of each self-corresponding drive unit; Described clamping head, between the both ends of delivery track, and also is provided with clamping position on the clamping head, the two ends of this clamping all are made as opening; Arranging of this clamping position needs to meet: when the end of piece-holder head moves to the clamping position, this piece-holder head is given birth to and is synchronizeed rotation with the clamping hair under the restriction of clamping position.
6. the laser marking machine for tubular workpiece as claimed in claim 5 is characterized in that: described marking device be positioned at the clamping head above or below.
7. the laser marking machine for tubular workpiece as claimed in claim 5, it is characterized in that: described drive unit is the second stepper motor.
8. the laser marking machine for tubular workpiece as claimed in claim 1, it is characterized in that: driving wheel and driven pulley all are installed on installing plate, described endless belt conveyer winding is on driving wheel and driven pulley, should also comprise the power transmission shaft connected with the output shaft synchronous of the first stepper motor for the laser marking machine of tubular workpiece, this power transmission shaft is connected with two driving wheels.
9. the laser marking machine for tubular workpiece as claimed in claim 1, it is characterized in that: described marking device is positioned at a side of endless belt conveyer.
CN 201320449515 2013-07-25 2013-07-25 Laser marker for tubular workpiece Expired - Lifetime CN203358058U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320449515 CN203358058U (en) 2013-07-25 2013-07-25 Laser marker for tubular workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320449515 CN203358058U (en) 2013-07-25 2013-07-25 Laser marker for tubular workpiece

Publications (1)

Publication Number Publication Date
CN203358058U true CN203358058U (en) 2013-12-25

Family

ID=49805873

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320449515 Expired - Lifetime CN203358058U (en) 2013-07-25 2013-07-25 Laser marker for tubular workpiece

Country Status (1)

Country Link
CN (1) CN203358058U (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104210249A (en) * 2014-08-15 2014-12-17 湖州倍格曼新材料有限公司 Processing device convenient for marking rubber tracks
CN104742530A (en) * 2014-02-25 2015-07-01 三木钢业有限公司 Laser marking system for springs
CN104943402A (en) * 2015-06-03 2015-09-30 张家港市旭华激光有限公司 Fully-automatic laser marking machine for jeans
CN105383857A (en) * 2015-12-25 2016-03-09 苏州智合源电子科技有限公司 Belt conveying mechanism of on-line full-automatic laser marking machine
CN105835542A (en) * 2016-04-01 2016-08-10 苏州恩欧西智能科技有限公司 Laser marking machine rotating clamp
CN106853715A (en) * 2016-12-18 2017-06-16 东莞市展兴机械设备有限公司 A kind of welding resistance coating machine and its method of work
CN108297555A (en) * 2017-01-24 2018-07-20 宁波市第医院 A kind of the information Method of printing and system of body fluid test tube
CN109623142A (en) * 2019-02-18 2019-04-16 清远初曲智能科技有限公司 A kind of automobile cylinder sleeve laser marking of intelligent measurement Workpiece notch position is equipped
CN110524106A (en) * 2019-05-21 2019-12-03 浙江格兰堡激光科技有限公司 Drill bit laser marking machine
CN110560914A (en) * 2019-05-21 2019-12-13 浙江格兰堡激光科技有限公司 laser marking drill bit positioning device
CN115008908A (en) * 2022-04-18 2022-09-06 江西天孚科技有限公司 Automatic laser marking and conveying multi-claw clamping device for cylindrical pipe body

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104742530A (en) * 2014-02-25 2015-07-01 三木钢业有限公司 Laser marking system for springs
CN104210249A (en) * 2014-08-15 2014-12-17 湖州倍格曼新材料有限公司 Processing device convenient for marking rubber tracks
CN104210249B (en) * 2014-08-15 2016-02-24 湖州倍格曼新材料股份有限公司 A kind of processing unit (plant) being convenient to rubber belt track mark
CN104943402A (en) * 2015-06-03 2015-09-30 张家港市旭华激光有限公司 Fully-automatic laser marking machine for jeans
CN105383857A (en) * 2015-12-25 2016-03-09 苏州智合源电子科技有限公司 Belt conveying mechanism of on-line full-automatic laser marking machine
CN105835542A (en) * 2016-04-01 2016-08-10 苏州恩欧西智能科技有限公司 Laser marking machine rotating clamp
CN106853715A (en) * 2016-12-18 2017-06-16 东莞市展兴机械设备有限公司 A kind of welding resistance coating machine and its method of work
CN108297555A (en) * 2017-01-24 2018-07-20 宁波市第医院 A kind of the information Method of printing and system of body fluid test tube
CN108340685A (en) * 2017-01-24 2018-07-31 宁波市第医院 A kind of laser printing system of body fluid test tube
CN108297555B (en) * 2017-01-24 2019-08-23 宁波市第一医院 A kind of the information Method of printing and system of body fluid test tube
CN108340685B (en) * 2017-01-24 2023-05-30 宁波市第一医院 Laser printing system of body fluid test tube
CN109623142A (en) * 2019-02-18 2019-04-16 清远初曲智能科技有限公司 A kind of automobile cylinder sleeve laser marking of intelligent measurement Workpiece notch position is equipped
CN110524106A (en) * 2019-05-21 2019-12-03 浙江格兰堡激光科技有限公司 Drill bit laser marking machine
CN110560914A (en) * 2019-05-21 2019-12-13 浙江格兰堡激光科技有限公司 laser marking drill bit positioning device
CN115008908A (en) * 2022-04-18 2022-09-06 江西天孚科技有限公司 Automatic laser marking and conveying multi-claw clamping device for cylindrical pipe body

Similar Documents

Publication Publication Date Title
CN203358058U (en) Laser marker for tubular workpiece
US11214460B2 (en) Cutting machine head and cutting machine thereof
CN105217070A (en) Online horizontal ring body winding-packing machine
CN203428125U (en) Automatic barcode-pasting and laser-engraving machine
CN203902867U (en) Online horizontal type annulus winding packaging machine
CN102941953B (en) Automatic labeler
CN203806742U (en) Feeding mechanism
CN102189436A (en) Tray conveying method and tray conveying device
CN208231127U (en) A kind of automatic charging device
CN210682392U (en) Tray carrying device adopting double manipulators to cooperatively operate
CN108381167A (en) A kind of automatic assembly line of fan
US20150225180A1 (en) Workpiece conveyer apparatus of machine tool
CN203093267U (en) Intermittent flexo printing equipment
CN101823614A (en) Automatic chain belt conveyor
CN202206731U (en) PCB (printed circuit board) track width adjusting mechanism
CN103101290B (en) Batch (-type) flexo equipment
CN203211867U (en) Belt conveyor
CN103316880B (en) Full automatic rotary type label-removing machine
CN202162615U (en) Workpiece conveying mechanism
CN208374420U (en) Automatic feed mechanism and solder stick automatic feeding
CN207668753U (en) Carrier roller frame welding flow-line equipment
CN205633870U (en) Automatic discharging device of button radium carving machine
CN102284884A (en) Workpiece conveying mechanism
CN214358329U (en) Automatic pipe feeding device
CN115258612A (en) Automatic aligning and feeding V-groove plate separator

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent of invention or patent application
CB03 Change of inventor or designer information

Inventor after: Tang Qunsheng

Inventor after: Yang Zhihua

Inventor after: Wang Yanyan

Inventor before: Tang Qunsheng

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: TANG QUNSHENG TO: TANG QUNSHENG YANG ZHIHUA WANG YANYAN

CX01 Expiry of patent term

Granted publication date: 20131225

CX01 Expiry of patent term