CN111844227A - Automatic feeding auxiliary device for punching building energy-saving plate - Google Patents

Automatic feeding auxiliary device for punching building energy-saving plate Download PDF

Info

Publication number
CN111844227A
CN111844227A CN202010741478.5A CN202010741478A CN111844227A CN 111844227 A CN111844227 A CN 111844227A CN 202010741478 A CN202010741478 A CN 202010741478A CN 111844227 A CN111844227 A CN 111844227A
Authority
CN
China
Prior art keywords
plate
punching
rod
sliding
fixedly connected
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.)
Withdrawn
Application number
CN202010741478.5A
Other languages
Chinese (zh)
Inventor
胡育良
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.)
Guangzhou Youpin Engineering Co ltd
Original Assignee
Guangzhou Youpin Engineering 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 Guangzhou Youpin Engineering Co ltd filed Critical Guangzhou Youpin Engineering Co ltd
Priority to CN202010741478.5A priority Critical patent/CN111844227A/en
Publication of CN111844227A publication Critical patent/CN111844227A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26FPERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/02Perforating by punching, e.g. with relatively-reciprocating punch and bed
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01Means for holding or positioning work
    • B26D7/02Means for holding or positioning work with clamping means
    • B26D7/025Means for holding or positioning work with clamping means acting upon planar surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0608Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by pushers

Abstract

The invention relates to the technical field of punching and feeding auxiliary equipment, in particular to an automatic feeding auxiliary device for punching a building energy-saving plate, which comprises a workbench, wherein a punching frame is fixedly connected to the upper surface of the workbench, a lower sliding plate is fixedly connected to the right side of the punching frame, a threaded rod is inserted into the lower surface of the workbench, a first belt pulley and a first gear are respectively meshed with the left side surface and the right side surface of the threaded rod, a belt is sleeved outside the first belt pulley, a second belt pulley is inserted at the left end of the belt, the energy-saving plate is pushed to the position right below a punching head through a push plate on the upper surface of the second sliding toothed plate, so that the automatic feeding of the energy-saving plate is facilitated, the manual installation of workers is avoided, the potential safety hazard is eliminated, the work is safer, the energy-saving plate is fixed through the downward movement of a clamping plate, the energy-saving plate is prevented from shaking when punching, the punching precision of the equipment is improved, and the punching efficiency of the equipment is improved.

Description

Automatic feeding auxiliary device for punching building energy-saving plate
Technical Field
The invention relates to the technical field of punching and feeding auxiliary equipment, in particular to an automatic feeding auxiliary device for punching of a building energy-saving plate.
Background
At present the board that uses architectural decoration is energy-conserving decorative board mostly, and energy-conserving decorative board is formed by decoration panel and heat preservation core board complex, and heat preservation decorative board is called again, however when decorating the building, need punch on the board, punch the special punching equipment of needs to energy-conserving board, and energy-conserving decorative board at present uses extensively, receives people deeply and likes.
However, when the energy-saving plate is punched, the energy-saving plate cannot be automatically conveyed below the punching head, and the material is often required to be manually and automatically placed below the punching head, so that certain danger exists. Therefore, the technical personnel in the field provide an automatic feeding auxiliary device for punching the building energy-saving plate, so as to solve the problems in the background technology.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic feeding auxiliary device for punching building energy-saving plates, which is achieved by the following specific technical means:
an automatic feeding auxiliary device for punching of building energy-saving plates comprises a workbench, wherein a punching frame is fixedly connected to the upper surface of the workbench, a lower sliding plate is fixedly connected to the right side of the punching frame, a threaded rod is inserted into the lower surface of the workbench, a first belt pulley and a first gear are respectively meshed with the left side surface and the right side surface of the threaded rod, a belt is sleeved outside the first belt pulley, a second belt pulley is inserted into the left end of the belt, a connecting rod is fixedly connected to the rear surface of the connecting rod, a crank sliding rod is movably connected to the front surface of the upper end of the connecting rod, a first sliding toothed plate is movably connected to the right end of the crank sliding rod through a shaft, a first positioning rod is inserted into the first sliding toothed plate, a second gear is meshed with the upper surface of the first sliding toothed plate, a second sliding toothed plate is meshed with the upper surface of the second gear, a second positioning rod is inserted into the second sliding toothed plate, a push plate is fixedly connected to the upper surface of the second sliding toothed plate, a sector gear is fixedly connected to the rear surface of the first gear through a shaft, a first double-face toothed plate is meshed with the right side surface of the sector gear, a first positioning sliding rail is inserted into the first double-face toothed plate, a reset spring is fixedly connected to the upper surface of the first double-face toothed plate, which is positioned outside the first positioning sliding rail, a first gear is meshed with the right side surface of the first double-face toothed plate, a first connecting rod is movably connected to the front surface of the first gear through a shaft, a rocker is movably connected to the right side surface of the first connecting rod through a shaft, a sliding block is fixedly connected to the upper surface of the rocker, an arc-shaped sliding rail is inserted into the sliding block, a limiting plate is fixedly connected to the right side surface of the arc-shaped sliding rail, a moving assembly, and the upper surface of the fixed rod is fixedly connected with a clamping plate.
As optimization, the inside of the workbench is a cavity, and the upper surface of the workbench is provided with a sliding groove matched with the push plate.
Preferably, the first belt pulley and the second belt pulley are the same in size and structure.
And as optimization, the first positioning rod and the second positioning rod are the same in size and structure, and are both located on the left side wall inside the workbench.
Preferably, the positioning slide rail is located on the inner bottom surface of the workbench, and the rocker is located on the inner bottom surface of the workbench.
As optimization, the movable assembly comprises a movable plate, a double-toothed plate II, a convex block, a turbine, a pull rod, a movable block and a positioning cylindrical rod, the double-toothed plate II is fixedly connected to the center of the upper surface of the movable plate, the convex block is fixedly connected to the lower surface of the movable plate, the turbine is meshed with the left side and the right side of the double-toothed plate II, the pull rod is movably connected to the front surface of the turbine through a shaft, the movable block is movably connected to the rear surface of the upper end of the pull rod through a shaft, the positioning cylindrical rod is inserted into the movable block, and the positioning cylindrical rod is located on the top surface of the inner portion of the.
Preferably, the upper end of the fixed rod is positioned outside the workbench.
The invention has the following beneficial effects:
1. this automatic pan feeding auxiliary device that building energy-saving plate punched a hole usefulness, push pedal through sliding toothed plate two upper surfaces will energy-saving plate propelling movement under the head of punching a hole, resume on original position after that, thereby conveniently carry out automatic pan feeding to energy-saving plate, avoid staff's manual installation, thereby eliminate the potential safety hazard that exists, safer work, simultaneously after first board punches a hole, the second board promotes first board, slide first board from the lower slide, make things convenient for the ejection of compact.
2. This automatic pan feeding auxiliary device that building energy-saving plate punched a hole usefulness moves down in the outside of location cylinder pole through the movable block to drive the grip block on the dead lever and move down, thereby fix energy-saving plate, thereby conveniently punch a hole to energy-saving plate, avoid energy-saving plate to rock when punching a hole, thereby improve equipment's that can be fine precision of punching a hole, improve equipment's punching efficiency simultaneously.
Drawings
Fig. 1 is a schematic perspective view of a workbench according to the present invention.
FIG. 2 is a schematic cross-sectional front view of the worktable according to the present invention.
Fig. 3 is a schematic view of the threaded rod of the present invention.
Fig. 4 is a schematic view of a second gear structure according to the present invention.
Fig. 5 is a schematic structural view of the double toothed plate of the present invention.
FIG. 6 is a schematic view of a moving assembly according to the present invention.
In the figure: 1. a work table; 2. punching a hole frame; 3. a lower slide plate; 4. a threaded rod; 5. a first belt pulley; 6. a first gear; 7. a belt; 8. a second belt pulley; 9. a connecting rod; 10. a crank slide bar; 11. a first sliding toothed plate; 12. a first positioning rod; 13. a second gear; 14. a second sliding toothed plate; 15. a second positioning rod; 16. pushing the plate; 17. a sector gear; 18. a first double-sided toothed plate; 19. positioning the slide rail; 20. a return spring; 21. a first gear; 22. a first connecting rod; 23. a rocker; 24. a slider; 25. an arc-shaped slide rail; 26. a limiting plate; 27. a moving assembly; 01. moving the plate; 02. a double-sided toothed plate II; 03. a bump; 04. a turbine; 05. a pull rod; 06. a moving block; 07. positioning the cylindrical rod; 28. fixing the rod; 29. and (5) clamping the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Referring to fig. 1-6, an automatic feeding auxiliary device for punching building energy saving plates comprises a worktable 1, a cavity is arranged inside the worktable 1, the upper surface of the working platform 1 is provided with a sliding chute matched with the push plate 16, the upper surface of the working platform 1 is fixedly connected with a punching frame 2, and the upper surface of workstation 1 is located the right side fixedly connected with lower slide 3 of punching frame 2, threaded rod 4 is pegged graft to the lower surface inside of workstation 1, the left and right sides face of threaded rod 4 meshes respectively has belt pulley 5 and first gear 6, belt pulley 5 is the same with the size of belt pulley two 8, the structure is the same, belt 7 has been cup jointed to the outside of belt pulley 5, belt 7's left end is pegged graft and is had belt pulley two 8, the rear surface fixedly connected with connecting rod 9 of connecting rod 9, there is crank slide bar 10 upper end front surface of connecting rod 9 through swing joint.
The right end of the crank sliding rod 10 is movably connected with a sliding toothed plate I11 through a shaft, a positioning rod I12 is inserted into the sliding toothed plate I11, the positioning rod I12 and a positioning rod II 15 are identical in size and structure, the positioning rod I12 and the positioning rod II 15 are both located on the inner left side wall of the workbench 1, a second gear 13 is meshed with the upper surface of the sliding toothed plate I11, a sliding toothed plate II 14 is meshed with the upper surface of the second gear 13, a positioning rod II 15 is inserted into the sliding toothed plate II 14, a push plate 16 is fixedly connected to the upper surface of the sliding toothed plate II 14, the energy-saving plate is pushed to the position under a punching head through the push plate 16 on the upper surface of the sliding toothed plate II 14 and then restored to the original position, so that automatic feeding of the energy-saving plate is facilitated, manual installation of workers is avoided, potential safety hazards are eliminated, safer work is achieved, and after punching of the first plate is finished, the second plate pushes the first plate to slide down from the lower slide plate 3, so that the discharging is convenient.
The rear surface of first gear 6 passes through axle fixedly connected with sector gear 17, sector gear 17's right flank meshing has double-toothed plate 18, double-toothed plate 18's inside is pegged graft and is had location slide rail 19, location slide rail 19 is located the inside bottom surface of workstation 1, rocker 23 is located the inside bottom surface of workstation 1, and double-toothed plate 18's upper surface is located the outside fixedly connected with reset spring 20 of location slide rail 19, double-toothed plate 18 right flank meshing has gear 21, there is connecting rod 22 front surface of gear 21 through axle swing joint, there is rocker 23 connecting rod 22 right flank through axle swing joint, the last fixed surface of rocker 23 is connected with slider 24.
An arc-shaped sliding rail 25 is inserted into the slider 24, a limiting plate 26 is fixedly connected to the right side face of the arc-shaped sliding rail 25, a moving assembly 27 is inserted into the limiting plate 26, the moving assembly 27 comprises a moving plate 01, a double-toothed plate II 02, a bump 03, a turbine 04, a pull rod 05, a moving block 06 and a positioning cylindrical rod 07, the double-toothed plate II 02 is fixedly connected to the center of the upper surface of the moving plate 01, the bump 03 is fixedly connected to the lower surface of the moving plate 01, the turbine 04 is meshed with the left side and the right side of the double-toothed plate II 02, the pull rod 05 is movably connected to the front surface of the turbine 04 through a shaft, the moving block 06 is movably connected to the rear surface of the upper end of the pull rod 05 through a shaft, the positioning cylindrical rod 07 is inserted into the moving block 06, the positioning cylindrical rod 07 is located on the inner top face of the workbench 1, a fixing rod, the upper surface of dead lever 28 is fixedly connected with clamp plate 29, moves down in the outside of location cylinder pole 07 through movable block 06 to drive the clamp plate 29 on the dead lever 28 and move down, thereby fix the energy-saving plate, thereby conveniently punch a hole to the energy-saving plate, avoid energy-saving plate to rock when punching a hole, thereby improve equipment's that can be fine precision of punching a hole, improve equipment's punching efficiency simultaneously.
When the energy-saving plate punching machine is used, the energy-saving plate is placed on the upper surface of the workbench 1 and positioned on the right side of the push plate 16, the threaded rod 4 is rotated through the external driving source, the belt pulley I5 drives the belt pulley II 8 to rotate through transmission between the gears, the connecting rod 9 on the rear surface of the belt pulley II 8 drives the crank sliding rod 10 to move towards the left side, the sliding toothed plate I11 on the right end of the crank sliding rod 10 slides towards the left side outside of the positioning rod I12, the sliding toothed plate I11 drives the second gear 13 to rotate in the sliding process of the sliding toothed plate I11, the second gear 13 drives the sliding toothed plate II 14 to move towards the right side outside of the positioning rod II 15 through transmission between the gears, the push plate 16 on the upper surface of the sliding toothed plate II 14 pushes the energy-saving plate to the position right below the punching head in the moving process of the sliding toothed plate II 14, and then returns to the original position, therefore, automatic feeding of the energy-saving plate is facilitated, manual installation of workers is avoided, potential safety hazards are eliminated, and the work is safer, after the first plate is punched, the second plate pushes the first plate to slide the first plate down from the lower sliding plate 3, discharging is facilitated, accumulation on the workbench 1 is avoided, when the belt pulley I5 rotates, the first gear 6 also rotates, when the belt pulley I5 finishes pushing, and when the belt pulley I5 returns, the sector gear 17 is meshed with the double-face toothed plate I18, so that the double-face toothed plate I18 moves downwards, the gear I21 rotates through transmission between the gears, the sliding block 24 on the upper surface of the rocker 23 is driven to slide on the arc-shaped sliding rail 25 through the connecting rod I22, the sliding block 24 drives the convex block 03 to move upwards, so that the double-face toothed plate II 02 drives the turbines 04 on two sides to rotate, and the moving block 06 moves downwards outside the positioning cylindrical rod 07, thereby drive the clamp plate 29 downstream on the dead lever 28 to fix energy-conserving board, close the driving source during fixed, after punching a hole, open the driving source, sector gear 17 separates with double toothed plate 18, thereby makes slider 24 resume original position, thereby conveniently punches a hole to energy-conserving board, avoids energy-conserving board to rock when punching a hole, thereby improve equipment's that can be fine precision of punching a hole, improve equipment's punching efficiency simultaneously.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an automatic pan feeding auxiliary device that building energy saving plate punched a hole and used, includes workstation (1), its characterized in that: the upper surface of the workbench (1) is fixedly connected with a punching frame (2), the upper surface of the workbench (1) is positioned on the right side of the punching frame (2) and is fixedly connected with a lower sliding plate (3), a threaded rod (4) is inserted into the lower surface of the workbench (1), the left side surface and the right side surface of the threaded rod (4) are respectively meshed with a first belt pulley (5) and a first gear (6), a belt (7) is sleeved outside the first belt pulley (5), a second belt pulley (8) is inserted into the left end of the belt (7), a connecting rod (9) is fixedly connected with the rear surface of the connecting rod (9), the upper end front surface of the connecting rod (9) is movably connected with a crank sliding rod (10), the right end of the crank sliding rod (10) is movably connected with a first sliding toothed plate (11) through a shaft, and a first sliding toothed plate (11) internal inserting positioning rod is provided with a first sliding, the upper surface of the first sliding toothed plate (11) is meshed with a second gear (13), the upper surface of the second gear (13) is meshed with a second sliding toothed plate (14), a second positioning rod (15) is inserted in the second sliding toothed plate (14), the upper surface of the second sliding toothed plate (14) is fixedly connected with a push plate (16), the rear surface of the first gear (6) is fixedly connected with a sector gear (17) through a shaft, the right side surface of the sector gear (17) is meshed with a first double-sided toothed plate (18), the inner part of the first double-sided toothed plate (18) is inserted with a positioning slide rail (19), the upper surface of the first double-sided toothed plate (18) is located outside the positioning slide rail (19) and fixedly connected with a reset spring (20), the right side surface of the first double-sided toothed plate (18) is meshed with a first gear (21), and the front surface of the first gear (21) is movably connected with a first connecting rod (22) through a shaft, the right flank of connecting rod (22) has rocker (23) through axle swing joint, the last fixed surface of rocker (23) is connected with slider (24), the inside grafting of slider (24) has arc slide rail (25), the right flank fixedly connected with limiting plate (26) of arc slide rail (25), the inside grafting of limiting plate (26) has removal subassembly (27), the last fixed surface of removal subassembly (27) is connected with dead lever (28), the last fixed surface of dead lever (28) is connected with pinch-off blades (29).
2. The automatic feeding auxiliary device for the punching of the building energy-saving plate as claimed in claim 1, is characterized in that: the inside of workstation (1) is the cavity, and the upper surface of workstation (1) is seted up the spout that matches each other with push pedal (16).
3. The automatic feeding auxiliary device for the punching of the building energy-saving plate as claimed in claim 1, is characterized in that: the first belt pulley (5) and the second belt pulley (8) are identical in size and structure.
4. The automatic feeding auxiliary device for the punching of the building energy-saving plate as claimed in claim 1, is characterized in that: the first positioning rod (12) and the second positioning rod (15) are the same in size and structure, and the first positioning rod (12) and the second positioning rod (15) are both located on the left side wall of the inner portion of the workbench (1).
5. The automatic feeding auxiliary device for the punching of the building energy-saving plate as claimed in claim 1, is characterized in that: the positioning slide rail (19) is located on the inner bottom surface of the workbench (1), and the rocker (23) is located on the inner bottom surface of the workbench (1).
6. The automatic feeding auxiliary device for the punching of the building energy-saving plate as claimed in claim 1, is characterized in that: the utility model discloses a fixed-position work platform, including the fixed plate of movable plate (01), two-sided pinion rack (02), lug (03), turbine (04), pull rod (05), movable block (06) and location cylinder pole (07), the upper surface center fixedly connected with two-sided pinion rack (02) of movable plate (01), the lower fixed surface of movable plate (01) is connected with lug (03), the left and right sides of two-sided pinion rack (02) all meshes turbine (04), the front surface of turbine (04) has pull rod (05) through axle swing joint, the upper end rear surface of pull rod (05) has movable block (06) through axle swing joint, the inside of movable block (06) is pegged graft and is had location cylinder pole (07), location cylinder pole (07) are located the inside top surface of workstation (1).
7. The automatic feeding auxiliary device for the punching of the building energy-saving plate as claimed in claim 1, is characterized in that: the upper end of the fixing rod (28) is positioned outside the workbench (1).
CN202010741478.5A 2020-07-29 2020-07-29 Automatic feeding auxiliary device for punching building energy-saving plate Withdrawn CN111844227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010741478.5A CN111844227A (en) 2020-07-29 2020-07-29 Automatic feeding auxiliary device for punching building energy-saving plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010741478.5A CN111844227A (en) 2020-07-29 2020-07-29 Automatic feeding auxiliary device for punching building energy-saving plate

Publications (1)

Publication Number Publication Date
CN111844227A true CN111844227A (en) 2020-10-30

Family

ID=72948905

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010741478.5A Withdrawn CN111844227A (en) 2020-07-29 2020-07-29 Automatic feeding auxiliary device for punching building energy-saving plate

Country Status (1)

Country Link
CN (1) CN111844227A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113043653A (en) * 2021-04-25 2021-06-29 吴化龙 Environment-friendly cardboard stamp auxiliary device with automatic feeding effect of unloading

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113043653A (en) * 2021-04-25 2021-06-29 吴化龙 Environment-friendly cardboard stamp auxiliary device with automatic feeding effect of unloading

Similar Documents

Publication Publication Date Title
CN210098846U (en) Thread rolling device with feeding mechanism
CN111844227A (en) Automatic feeding auxiliary device for punching building energy-saving plate
CN210586611U (en) Mechanical manufacturing punch forming mechanism
CN111097829A (en) Arc punching equipment for mechanical pipe fitting
CN108405900A (en) A kind of household goods of furniture for display rather than for use production device
CN108748430A (en) A kind of lathe
CN210010489U (en) Gear machining device
CN215282348U (en) High-efficient perforating device suitable for furniture board
CN113263111B (en) Intelligent stamping equipment and stamping method for automobile parts
CN112170892B (en) Drilling equipment for spherical articles
CN111974890A (en) Body-building apparatus accessory processing is with continuous stamping die
CN110508963B (en) Full-automatic robot welding process for environment-friendly integrated external wall panel connecting piece
CN110744308A (en) Metal pipeline bending cutting machine
CN209551258U (en) A kind of double-station feeding mechanism
CN111571221A (en) Aluminum alloy die casting treatment facility
CN208584546U (en) A kind of universal glass plate loading and unloading mechanical arm
CN214133540U (en) Sheet metal machining device capable of automatically ejecting sheet metal part
CN211550439U (en) Transmission mechanism for thread rolling machine
CN216462063U (en) Plate shearing machine for sheet metal machining
CN210211039U (en) Camera button forming die
CN213968622U (en) Automatic lower die device based on metal forming
CN212398194U (en) Drilling equipment is used to indoor decoration fitment
CN210549323U (en) Automatic pin assembling equipment for light tube shell
CN211386463U (en) Chamfering device for lock clamp groove of automobile steering gear
CN214869289U (en) Automatic trimming device for garbage can blank

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
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20201030