CN116441497A - Automatic length measurement and scribing device and method for multiple-length blank - Google Patents
Automatic length measurement and scribing device and method for multiple-length blank Download PDFInfo
- Publication number
- CN116441497A CN116441497A CN202310169160.8A CN202310169160A CN116441497A CN 116441497 A CN116441497 A CN 116441497A CN 202310169160 A CN202310169160 A CN 202310169160A CN 116441497 A CN116441497 A CN 116441497A
- Authority
- CN
- China
- Prior art keywords
- double
- automatic
- length
- marking
- size
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/163—Controlling or regulating processes or operations for cutting cast stock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
技术领域technical field
本发明属于机械传动、自动控制和电器设备领域,尤其是一种倍尺坯自动测长和划线装置及方法。The invention belongs to the field of mechanical transmission, automatic control and electrical equipment, in particular to a device and method for automatic length measurement and marking of a double-size billet.
背景技术Background technique
目前连铸产线铸坯进行一次切割喷号后,运输到中厚板原料库存区进行二次切割,对连铸区的倍尺坯,通过二次切割才能得到定尺坯,当前在对倍尺坯件切割时,根据二切计划和三切计划对每块板坯进行尺寸定位,需要人工对倍尺坯提前划线,现场行车吊运频繁,现场温度高,劳动强度大存在安全隐患。且操作岗位人员紧张,人工划线容易出错,影响产品质量。At present, the cast slabs in the continuous casting production line are cut and sprayed once, and then transported to the medium and thick plate raw material storage area for secondary cutting. For the double-size billets in the continuous casting area, the fixed-size billets can only be obtained through secondary cutting. When cutting the ruler blank, the size of each slab is positioned according to the two-cut plan and the three-cut plan. It is necessary to manually mark the double-size blank in advance. The site is frequently hoisted and transported, the site temperature is high, and the labor intensity is high, posing safety hazards. Moreover, the operators are tense, and manual marking is prone to errors, which affects product quality.
发明内容Contents of the invention
本发明的目的是为了解决现有技术中存在的问题,而提出一种倍尺坯自动测长和划线装置及方法。The purpose of the present invention is to solve the problems existing in the prior art, and to propose an automatic length measuring and marking device and method for a double-length billet.
为了实现上述目的,本发明采用了如下技术方案:In order to achieve the above object, the present invention adopts the following technical solutions:
一种倍尺坯自动测长和划线装置,包括由PLC控制系统控制的行走轨道、前道闸、后道闸、夹钳、自动测长机构、自动划线机构;An automatic length-measuring and marking-off device for double-size blanks, including a walking track controlled by a PLC control system, a front gate, a rear gate, clamps, an automatic length-measuring mechanism, and an automatic marking mechanism;
一次切割喷号后的倍尺坯从前一工序进入到所述行走轨道上;The double-size blank after one cutting and spraying enters the walking track from the previous process;
前道闸位于行走轨道进口一端,所述后道闸位于行走轨道出口一端;The front gate is located at the entrance of the traveling track, and the rear gate is located at the exit of the traveling track;
夹钳位于行走轨道侧部;The clamp is located on the side of the walking track;
前道闸和后道闸处各设有一个自动测长机构;There is an automatic length measuring mechanism at the front gate and the rear gate respectively;
自动划线机构位于行走轨道侧部。The automatic marking mechanism is located on the side of the walking track.
作为更进一步的优选方案,自动划线机构包括划线系统、搅拌喷涂系统、超声波清洗系统。As a further preferred solution, the automatic scribing mechanism includes a scribing system, a stirring spraying system, and an ultrasonic cleaning system.
作为更进一步的优选方案,自动测长机构为测距传感器。As a further preferred solution, the automatic length measuring mechanism is a distance measuring sensor.
作为更进一步的优选方案,夹钳为两个,分别设置于行走轨道两侧。As a further preferred solution, there are two clamps, which are respectively arranged on both sides of the running track.
作为更进一步的优选方案,行走轨道为辊轮。As a further preferred solution, the running track is a roller.
一种倍尺坯自动测长和划线装置的方法,包括以下步骤:A method for an automatic length-measuring and marking-off device for double-size billets, comprising the following steps:
步骤一:前道闸和后道闸抬起,一次切割喷号后的倍尺坯从前一工序进入行走轨道,待移动至自动划线区域后,前道闸和后道闸落下;Step 1: The front gate and the rear gate are lifted, and the multi-size blank after cutting and spraying the number once enters the running track from the previous process. After moving to the automatic marking area, the front gate and the rear gate fall;
步骤二:前道闸处的自动测长机构开启,对准倍尺坯前端,后道闸处的自动测长机构开启,对准倍尺坯后端;Step 2: The automatic length measuring mechanism at the front gate is turned on and aligned with the front end of the double-size billet, and the automatic length-measuring mechanism at the rear gate is turned on and aligned with the rear end of the double-size billet;
步骤三:倍尺坯两侧的夹钳启动,推动倍尺坯位置,保证倍尺坯处于前后方的两个自动测长机构之间进行测距,将测量的模拟量电压值输入PLC控制器,经过转换和计算,将最终的测长值存储;Step 3: Start the clamps on both sides of the double-scale blank, push the double-scale blank position, ensure that the double-scale blank is between the two automatic length measuring mechanisms at the front and rear for distance measurement, and input the measured analog voltage value into the PLC controller , after conversion and calculation, store the final length measurement value;
步骤四:自动划线机构移动至经过计算后的划线位置,把喷涂口正对倍尺坯侧面,开始喷涂;Step 4: The automatic scribing mechanism moves to the calculated scribing position, and the spraying port faces the side of the double-size billet, and starts spraying;
步骤五:喷涂完成后,油漆箱及管路上的超声波发生器打开,油漆箱及管道内的高温油漆在超声波频率下一起振动,使油漆液体产生大量小气泡,把吸附在管道内表面上的油漆吸出,并回流到油漆箱内保存,即为完成倍尺坯的自动测长和划线。Step 5: After the spraying is completed, the ultrasonic generator on the paint box and the pipeline is turned on, and the high-temperature paint in the paint box and the pipeline vibrates together at the ultrasonic frequency, causing the paint liquid to generate a large number of small bubbles, and the paint adsorbed on the inner surface of the pipeline Suck it out, and return it to the paint box for storage, which is to complete the automatic length measurement and marking of the double-foot blank.
本发明利用简单的机械原理实现自动测量倍尺坯的长度和划线功能,为辅助切割提升了效率,为实现倍尺坯长度测量、搅拌喷涂、超声波清洗、以及自动划线的功能,即可进行倍尺坯的自动测长和划线。本发明能够提高在倍尺坯切割前确认切割位置时的机械化和高效化,且操作简便,能够提高作业效率,降低劳动强度,减少劳动成本,同时保证了倍尺坯测长和划线时的人员安全,能够在少量人员操作下实现高效率的倍尺坯测长和划线。本装置具有很强的抗干扰能力,适用于现场温度高且恶劣的环境;本装置纯电力供能,无污染排放。The present invention utilizes simple mechanical principles to realize the functions of automatically measuring the length of double-scale blanks and marking lines, and improves the efficiency for auxiliary cutting. In order to realize the functions of length measurement, stirring and spraying, ultrasonic cleaning, and automatic marking of double-scale blanks, Carry out automatic length measurement and marking of double-length blanks. The invention can improve the mechanization and high efficiency of confirming the cutting position before cutting the double-size blank, and is easy to operate, can improve the working efficiency, reduce the labor intensity and labor cost, and at the same time ensure the accuracy of the double-size blank length measurement and marking. It is safe for personnel, and can realize efficient length measurement and marking of double-size blanks under the operation of a small number of personnel. The device has a strong anti-interference ability and is suitable for high-temperature and harsh environments on site; the device is powered by pure electricity and has no pollution emissions.
附图说明Description of drawings
图1为倍尺坯自动测长和划线装置的俯视图;Fig. 1 is the top view of the automatic length measuring and marking device of double ruler blank;
图中:1、行走轨道,2、前道闸,3、后道闸,4、夹钳,5、自动测长机构,6、自动划线机构,7、倍尺坯。In the figure: 1, walking track, 2, front gate, 3, rear gate, 4, clamp, 5, automatic length measuring mechanism, 6, automatic marking mechanism, 7, double-foot blank.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
一种倍尺坯自动测长和划线装置,包括由PLC控制系统控制的行走轨道1、前道闸2、后道闸3、夹钳4、自动测长机构5、自动划线机构6;主要功能由道闸对倍尺坯定位、行走轨道的位置调整、测距系统来实现自动测长工作。An automatic length-measuring and marking device for double-size blanks, comprising a walking track 1 controlled by a PLC control system, a front gate 2, a rear gate 3, clamps 4, an automatic length-measuring mechanism 5, and an automatic marking mechanism 6; The main function is to realize the automatic length measurement work by the barrier gate to locate the double-length billet, the position adjustment of the walking track, and the distance measurement system.
一次切割喷号后的倍尺坯从前一工序进入到所述行走轨道1上。The double-size blank after one cutting and number spraying enters the walking track 1 from the previous process.
前道闸2位于行走轨道1进口一端,所述后道闸3位于行走轨道1出口一端,道闸对倍尺坯定位部分是通过倍尺坯前后道闸到达测距位置,开始检测是否接触到倍尺坯前后端,接触后即为点位完成,确认测量长度。The front gate 2 is located at the entrance end of the walking track 1, and the rear gate 3 is located at the exit end of the walking track 1. The positioning part of the gate for the double-size billet is to reach the distance measuring position through the front and rear gates of the double-scale billet, and start to detect whether it is touched. The front and rear ends of the double-length billet are in contact with each other, and the point is completed, and the measured length is confirmed.
夹钳4位于行走轨道1侧部;行走轨道部分是通过左右夹钳的推动,来实现倍尺坯的左右移动调整位置,夹钳的移动是通过两端液压杆的推动实现的。The clamp 4 is located on the side of the walking track 1; the moving track part is pushed by the left and right clamps to realize the left and right movement and adjustment of the double-size billet, and the movement of the clamps is realized by the push of the hydraulic rods at both ends.
前道闸2和后道闸3处各设有一个自动测长机构5;测距系统是通过装在道闸末端的测距传感器,实现道闸末端与倍尺坯前后位置的相对距离,实时反馈到PLC控制器中,经过模拟量转数字量处理得到倍尺坯长度值。The front gate 2 and the rear gate 3 are respectively equipped with an automatic length measuring mechanism 5; the distance measuring system is to realize the relative distance between the end of the gate and the front and rear positions of the double-size billet through the distance measuring sensor installed at the end of the gate, real-time Feedback to the PLC controller, through the conversion of analog quantity to digital quantity, the length value of double-scale billet is obtained.
自动划线机构6位于行走轨道1侧部;自动划线机构由PLC控制,主要功能由划线系统、搅拌喷涂系统、超声波清洗系统、机器人本体来实现自动划线工作。划线系统部分是通过测长机构的长度数据,再根据激光测距的反馈数据,实现在倍尺坯左端喷涂印记,搅拌喷涂系统部分是通过涂料箱中的涂料,在接收到喷涂命令时,涂料泵开始工作并开始搅拌,涂料从喷头喷出,可调节喷头上的调节螺帽调节喷印宽度,完成喷印,超声波清洗系统部分是通过喷涂完成后,开启超声波发生器,通过超声波发生器产生的管道振动,让涂料残留从管壁上逐渐脱落,下次喷涂带走剩余残留,实现清洗功能,机器人本体来实现帮助激光测距和喷涂的位置移动和实现一系列自动划线流程的完成。The automatic scribing mechanism 6 is located on the side of the walking track 1; the automatic scribing mechanism is controlled by PLC, and its main functions are realized by the scribing system, stirring and spraying system, ultrasonic cleaning system, and robot body. The part of the scribing system uses the length data of the length measuring mechanism, and then according to the feedback data of the laser ranging, to realize spraying marks on the left end of the double-size billet. The part of the stirring and spraying system uses the paint in the paint box. When receiving the spraying order, The paint pump starts to work and starts to stir, the paint is sprayed out from the nozzle, the adjusting nut on the nozzle can be adjusted to adjust the printing width, and the printing is completed. The generated pipeline vibration causes the paint residue to gradually fall off from the pipe wall, and the next spraying will take away the remaining residue to realize the cleaning function. The robot body will help the laser distance measurement and spraying position movement and complete a series of automatic marking processes. .
倍尺坯自动测长和划线装置的方法,自动测长机构能完成倍尺坯的位置调整、倍尺坯的测距计算两个步骤。自动划线机构能完成激光测距定位、搅拌喷涂、自动划线、超声波清洗四个步骤。In the method of the double-size blank automatic length measurement and marking device, the automatic length measurement mechanism can complete the two steps of the position adjustment of the double-size blank and the distance measurement calculation of the double-size blank. The automatic scribing mechanism can complete the four steps of laser distance measurement and positioning, stirring and spraying, automatic scribing and ultrasonic cleaning.
具体步骤如下:Specific steps are as follows:
首先把倍尺坯通过滚轮运送到自动划线区域,两侧的夹钳对倍尺坯位置固定,前后两个道闸放下,前道闸的末端测距仪对准倍尺坯前端位置,后道闸的末端测距仪对准倍尺坯后端位置,夹钳来控制倍尺坯是否与前后道闸的测距仪接触,将测量的模拟量电压值输入PLC控制器,经过转换和计算,将最终的测长值存储,之后机器人本体末端移动到经过计算后的划线位置,将激光测距仪正对倍尺坯上表面,并沿划线方向出口方向移动,待检测到出口位置30mm处,开启搅拌涂料功能,把喷涂口正对倍尺坯侧面,开始喷涂,喷涂完成后启动超声波清洗功能,即为完成倍尺坯的自动测长和划线,实现设备自动测长和划线,使得人员操作更加安全可靠,提升工作效率,达到降本增效的目的。Firstly, the double-size billet is transported to the automatic marking area by rollers, the clamps on both sides fix the position of the double-size billet, the front and rear gates are lowered, the end rangefinder of the front gate is aligned with the front end of the double-scale billet, and the rear The distance meter at the end of the barrier is aligned with the rear end of the double-size blank, and the clamp controls whether the double-size blank is in contact with the rangefinder at the front and rear barriers, and the measured analog voltage value is input to the PLC controller, which is converted and calculated , store the final length measurement value, and then move the end of the robot body to the calculated marking position, point the laser rangefinder to the upper surface of the double-scale blank, and move along the direction of the marking line exit until the exit position is detected At 30mm, turn on the function of stirring the paint, put the spray port on the side of the double-size billet, and start spraying. After the spraying is completed, start the ultrasonic cleaning function, that is, to complete the automatic length measurement and marking of the double-size billet, and realize the automatic length measurement and marking of the equipment. line, making personnel operations safer and more reliable, improving work efficiency, and achieving the purpose of reducing costs and increasing efficiency.
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technical solution of the present invention Any equivalent replacement or change of the inventive concepts thereof shall fall within the protection scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310169160.8A CN116441497A (en) | 2023-02-27 | 2023-02-27 | Automatic length measurement and scribing device and method for multiple-length blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310169160.8A CN116441497A (en) | 2023-02-27 | 2023-02-27 | Automatic length measurement and scribing device and method for multiple-length blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116441497A true CN116441497A (en) | 2023-07-18 |
Family
ID=87127884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310169160.8A Pending CN116441497A (en) | 2023-02-27 | 2023-02-27 | Automatic length measurement and scribing device and method for multiple-length blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116441497A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1373950A (en) * | 1971-12-06 | 1974-11-13 | Lamberton & Co Ltd | Shearing of metal billets into pieces of equal length |
| KR100815783B1 (en) * | 2001-10-04 | 2008-03-20 | 주식회사 포스코 | Positioning device of torch cutter |
| CN101811182A (en) * | 2009-02-25 | 2010-08-25 | 宝山钢铁股份有限公司 | Process for online cut-to-length cutting production of continuous casting slabs for heavy plate mill |
| CN202049371U (en) * | 2010-12-22 | 2011-11-23 | 鞍钢集团自动化公司 | Cutting control system for continuous casting slab |
| CN102581241A (en) * | 2012-02-27 | 2012-07-18 | 柳州钢铁股份有限公司 | Secondary automatic cutting system of continuous casting slab |
| CN202591568U (en) * | 2012-02-27 | 2012-12-12 | 柳州钢铁股份有限公司 | Secondary automatic cutting system for continuous casting sheet billet |
| CN205519550U (en) * | 2016-01-28 | 2016-08-31 | 上海新中冶金设备厂 | Continuous casting cutting machine non -contact laser scale detection device |
| CN110369374A (en) * | 2019-08-05 | 2019-10-25 | 重庆大学 | A kind of novel rotation cup cleaning device suitable for painting dressing automobiles |
| CN112264982A (en) * | 2020-09-24 | 2021-01-26 | 彩虹集团有限公司 | Automatic length measuring and scribing device and method for plate blank |
-
2023
- 2023-02-27 CN CN202310169160.8A patent/CN116441497A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1373950A (en) * | 1971-12-06 | 1974-11-13 | Lamberton & Co Ltd | Shearing of metal billets into pieces of equal length |
| KR100815783B1 (en) * | 2001-10-04 | 2008-03-20 | 주식회사 포스코 | Positioning device of torch cutter |
| CN101811182A (en) * | 2009-02-25 | 2010-08-25 | 宝山钢铁股份有限公司 | Process for online cut-to-length cutting production of continuous casting slabs for heavy plate mill |
| CN202049371U (en) * | 2010-12-22 | 2011-11-23 | 鞍钢集团自动化公司 | Cutting control system for continuous casting slab |
| CN102581241A (en) * | 2012-02-27 | 2012-07-18 | 柳州钢铁股份有限公司 | Secondary automatic cutting system of continuous casting slab |
| CN202591568U (en) * | 2012-02-27 | 2012-12-12 | 柳州钢铁股份有限公司 | Secondary automatic cutting system for continuous casting sheet billet |
| CN205519550U (en) * | 2016-01-28 | 2016-08-31 | 上海新中冶金设备厂 | Continuous casting cutting machine non -contact laser scale detection device |
| CN110369374A (en) * | 2019-08-05 | 2019-10-25 | 重庆大学 | A kind of novel rotation cup cleaning device suitable for painting dressing automobiles |
| CN112264982A (en) * | 2020-09-24 | 2021-01-26 | 彩虹集团有限公司 | Automatic length measuring and scribing device and method for plate blank |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201664802U (en) | Continuous casting slab secondary cutting fully automatic stepless adjustment sizing device | |
| CN108677675B (en) | road marking device | |
| CN102581241A (en) | Secondary automatic cutting system of continuous casting slab | |
| CN116441497A (en) | Automatic length measurement and scribing device and method for multiple-length blank | |
| CN112264982B (en) | Automatic length measuring and scribing device and method for plate blank | |
| CN108457675A (en) | A kind of formwork jumbo of automatic lifting walking | |
| CN116372131B (en) | Intelligent transportation system and method for continuous casting slabs | |
| CN111809496A (en) | An automatic road marking machine | |
| CN110193645A (en) | The accurate positioning method that continuous casting steel billet two is cut | |
| CN117262652B (en) | A roller positioning device and method | |
| CN104690462B (en) | A kind of device and method processing arc curve groove | |
| CN209681088U (en) | A cut-to-length device for thick plate continuous casting machine | |
| CN202591568U (en) | Secondary automatic cutting system for continuous casting sheet billet | |
| CN205733227U (en) | The correlation electrooptical device of steel pipe length measuring system device | |
| CN206339393U (en) | A kind of sampling apparatus for detecting position of vehicle | |
| CN107457571A (en) | A kind of strand scale system and method | |
| CN212045210U (en) | Centralized mold opening and closing device of horizontal mold wallboard forming machine | |
| CN210703022U (en) | Flame cutting and dust removal integrated system | |
| CN210675678U (en) | Track bolt grease coating trolley | |
| CN2340609Y (en) | Apparatus for combining two layer composite board | |
| CN206721648U (en) | It is a kind of can adjust automatically tunnel hydraulic pressure trestle lateral shift device | |
| CN108126984A (en) | The control method of H-Beam Rolling Mill roughing mills mill roll trolley regional location identification | |
| CN101786069A (en) | Test coating machine for sensitive material | |
| CN115401257A (en) | Non-impact steel plate sizing machine and using method thereof | |
| CN204535918U (en) | A kind of secondary cooling area for continuous casting pressure cooling medium proving installation |
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 |
Application publication date: 20230718 |
|
| RJ01 | Rejection of invention patent application after publication |