CN112264609A - Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy - Google Patents

Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy Download PDF

Info

Publication number
CN112264609A
CN112264609A CN202011127184.XA CN202011127184A CN112264609A CN 112264609 A CN112264609 A CN 112264609A CN 202011127184 A CN202011127184 A CN 202011127184A CN 112264609 A CN112264609 A CN 112264609A
Authority
CN
China
Prior art keywords
fixedly connected
rotating
fixed
pawl
disc
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Withdrawn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
CN202011127184.XA
Other languages
Chinese (zh)
Inventor
李增洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011127184.XA priority Critical patent/CN112264609A/en
Publication of CN112264609A publication Critical patent/CN112264609A/en
Withdrawn legal-status Critical Current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
    • B22D39/00Equipment for supplying molten metal in rations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D43/00Mechanical cleaning, e.g. skimming of molten metals
    • B22D43/001Retaining slag during pouring molten metal
    • B22D43/004Retaining slag during pouring molten metal by using filtering means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Centrifugal Separators (AREA)

Abstract

The invention relates to the technical field of casting machine manufacturing, and discloses an intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy, which comprises a rotating disc, wherein a rotating clamping wheel is fixedly connected inside the rotating disc, a fixed disc is fixedly connected inside the rotating disc, a rotating blade is fixedly connected to the surface of the rotating disc, the rotating blade is connected with an automatic impurity removal mechanism, and the rotating clamping wheel is connected with a quantitative pouring mechanism. Thereby achieving the function of automatic quantitative pouring and casting.

Description

Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy
Technical Field
The invention relates to the technical field of casting machine manufacturing, in particular to an intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy.
Background
The casting technology is a very important forming mode in industrial development, solid metal is heated to a melting point, metal solution is poured into a manufactured mold for cooling, sand is removed after cooling to obtain a formed metal part, and burrs on the surface of the metal are removed through polishing to obtain a qualified part.
But metal solution is because artifical control does not lead to the pouring volume well to increase or reduce when the pouring for the too big use that leads to of metal parts size deviation after the shaping, great reduction production efficiency and production hand labor's loss, can be if the while pouring in-process can be if because the too much metal solution that leads to of pouring volume splashes and cause personnel's scald, the incident appears.
Therefore, in view of the above, research and improvement are made for the existing structure and defects, and a device for intelligent manufacturing automatic quantitative pouring and casting based on liquid potential energy is provided, so as to achieve the purpose of more practical value.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy, which has the advantages of automatically quantitatively pouring metal solution and removing impurities in the metal solution, and solves the problems that the pouring amount of the metal solution is unstable and the impurities influence the metal strength.
(II) technical scheme
In order to realize the purposes of automatically and quantitatively pouring the metal solution and removing impurities in the metal solution, the invention provides the following technical scheme: an automatic quantitative filling casting device based on liquid potential energy is manufactured intelligently and comprises a rotating disc, a rotating clamping wheel is fixedly connected inside the rotating disc, a fixed disc is fixedly connected inside the rotating disc, a rotating blade is fixedly connected to the surface of the rotating disc, a fixed frame is fixedly connected to the surface of the rotating blade, a liquid outlet frame is movably connected to the surface of the rotating blade through a sliding chute, a liquid outlet filter opening is fixedly connected inside the liquid outlet frame, a centrifugal spring is fixedly connected inside the rotating blade, one end, away from the rotating blade, of the centrifugal spring is fixedly connected with a centrifugal block, an air outlet hole is fixedly connected inside the rotating blade, a fixed column is fixedly connected to the surface of the rotating clamping wheel, a plugging stay rope is fixedly connected to the surface of the fixed column, a fixed pulley is movably connected to the surface of the plugging stay rope, and an upper pushing slide block is fixedly connected to one end, away from the fixed pulley, of the plugging, one end, far away from the pawl, of the plugging pull rope is fixedly connected with a rope storage box, the surface of the pushing slider is fixedly connected with an upper push rod, the surface of the upper push rod is fixedly connected with a plugging block, the surface of the rotating clamping wheel is fixedly connected with a reset button, the surface of the reset button is movably connected with a reset rod, the surface of the reset rod is movably connected with a pawl, the surface of the pawl is fixedly connected with a pawl spring, and one end, far away from the pawl, of the pawl spring is fixedly connected with a pawl fixing block;
preferably, the surface of the fixed disk is movably connected with a pawl, the surface of the fixed disk is fixedly connected with a pawl fixed block, the surface of the fixed disk is movably connected with a fixed pulley, and the surface of the fixed disk is fixedly connected with a rope storage box;
preferably, the upward pushing sliding block is movably connected with the fixed disc through a sliding groove formed in the surface of the fixed disc, the surface of the upward pushing sliding block is fixedly connected with an extension spring, and the fixed disc is fixed at one end, far away from the upward pushing sliding block, of the extension spring;
preferably, a filter screen is fixedly connected inside the liquid outlet filter opening, a sliding rod is movably connected to the surface of the upper push rod, a pulley is fixedly connected to one end, away from the upper push rod, of the sliding rod, the pulley is movably connected with the liquid outlet frame through a sliding groove formed in the liquid outlet frame, and a supporting spring is fixedly connected between the sliding rod and the upper push rod;
preferably, the inside of the rope storage box is fixedly connected with a stay cord rib, and the surface of the centrifugal block is movably connected with the rotating blade through a sliding groove formed in the rotating blade;
preferably, the surface of the fixing frame is fixedly connected with a rotating disc, the surface of the blocking block is movably connected with the liquid outlet frame through a sliding groove formed in the liquid outlet frame, and the size of the blocking block is larger than that of the liquid outlet filter opening.
(III) advantageous effects
Compared with the prior art, the invention provides an intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy, which has the following beneficial effects:
1. the device for intelligently manufacturing the automatic quantitative pouring casting based on the liquid potential energy comprises a rotating blade, a rotating disc, a rotating clamping wheel, a plugging pull rope, a pushing slide block, a pawl, a reset button, a reset rod, a pawl and a fixing column, wherein when a casting metal solution flows into the rotating blade, the rotating blade drives the rotating disc to rotate, the rotating disc drives the rotating clamping wheel to rotate, the rotating clamping wheel rotates to drive the plugging pull rope to wind and contract around the fixing column, the plugging pull rope drives the pushing slide block to move upwards, the pushing slide block moves upwards to drive the pushing slide block to move upwards, when the metal solution flows out to a certain amount of a mold, the plugging block plugs a liquid outlet filter port, so that the metal solution does not flow into the mold, the rotating clamping wheel is clamped by the pawl, the pawl cannot reset under the action of the rope storage box, the reset rod is driven to push the pawl upwards after the reset button, at the moment, the rotating clamping wheel is reset, and the metal solution can be secondarily poured after the rotating clamping wheel is reset, so that the function of automatic quantitative pouring and casting is achieved.
2. This automatic quantitative cast device that fills is made to intelligence based on liquid potential energy drives the centrifugal piece through the rotation of rotating vane and rotates, and the centrifugal piece compresses centrifugal spring under the effect of centrifugal force for the export of venthole is opened, and during the mixed edulcoration gas in the venthole entered into metallic solution, the impurity reaction that will be inside generated the sediment, filters through going out the filter screen on the liquid filtration mouth, thereby reaches the function of the automatic impurity of getting rid of in the metallic solution.
Drawings
FIG. 1 is a schematic view of a rotary chuck wheel according to the present invention;
FIG. 2 is a schematic view of a rotary vane according to the present invention;
FIG. 3 is a schematic view of the plugging pull cord of the present invention;
FIG. 4 is an enlarged view of the position A of the rotating chuck wheel shown in FIG. 1 according to the present invention;
FIG. 5 is an enlarged view of the position B in the structural diagram of the rotary wheel of FIG. 1 according to the present invention.
In the figure: 1. rotating the disc; 2. rotating the clamping wheel; 3. rotating the leaf; 4. a liquid outlet frame; 5. the effluent is filtered through a filter opening; 6. a fixed pulley; 7. a plugging pull rope; 8. fixing a column; 9. a rope storage box; 10. pushing up the slide block; 11. a push rod is arranged; 12. blocking; 13. fixing the disc; 14. a centrifugal spring; 15. an air outlet; 16. a centrifugal block; 17. a pawl; 18. a pawl fixing block; 19. a pawl spring; 20. a reset lever; 21. a reset button; 22. a fixing frame.
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. 1-5, an intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy comprises a rotating disc 1, a rotating clamping wheel 2 is fixedly connected inside the rotating disc 1, a fixed disc 13 is fixedly connected inside the rotating disc 1, a rotating blade 3 is fixedly connected on the surface of the rotating disc 1, a fixed frame 22 is fixedly connected on the surface of the rotating blade 3, a liquid outlet frame 4 is movably connected on the surface of the rotating blade 3 through a chute, a liquid outlet filter opening 5 is fixedly connected inside the liquid outlet frame 4, a centrifugal spring 14 is fixedly connected inside the rotating blade 3, a centrifugal block 16 is fixedly connected at one end of the centrifugal spring 14 far away from the rotating blade 3, an air outlet hole 15 is fixedly connected inside the rotating blade 3, a fixed column 8 is fixedly connected on the surface of the rotating clamping wheel 2, a plugging pull rope 7 is fixedly connected on the surface of the fixed column 8, and a fixed pulley 6 is movably connected on the surface of the, one end of the plugging pull rope 7 far away from the fixed pulley 6 is fixedly connected with an upper push sliding block 10, the upper push sliding block 10 is movably connected with a fixed disc 13 through a sliding groove formed in the surface of the fixed disc 13, the surface of the upper push sliding block 10 is fixedly connected with an extension spring, one end of the extension spring far away from the upper push sliding block 10 is fixedly connected with the fixed disc 13, one end of the plugging pull rope 7 far away from the upper push sliding block 10 is fixedly connected with a rope storage box 9, the surface of the upper push sliding block 10 is fixedly connected with an upper push rod 11, the interior of the liquid outlet filter 5 is fixedly connected with a filter screen, the surface of the upper push rod 11 is movably connected with a sliding rod, one end of the sliding rod far away from the upper push rod 11 is fixedly connected with a pulley, the pulley is movably connected with a liquid outlet frame 4 through a sliding groove formed in the liquid outlet frame 4, a supporting spring is fixedly connected between the sliding, the surface of the block 12 is movably connected with the liquid outlet frame 4 through a sliding groove formed in the liquid outlet frame 4, the size of the block 12 is larger than that of the liquid outlet filter opening 5, the surface of the rotary clamping wheel 2 is fixedly connected with a reset button 21, the surface of the reset button 21 is movably connected with a reset rod 20, the surface of the reset rod 20 is movably connected with a pawl 17, the surface of the pawl 17 is fixedly connected with a pawl spring 19, one end of the pawl spring 19, far away from the pawl 17, is fixedly connected with a pawl fixed block 18, the surface of the fixed disc 13 is movably connected with the pawl 17, the surface of the fixed disc 13 is movably connected with a fixed pulley 6, the surface of the fixed disc 13 is fixedly connected with a rope storage box 9, the inner part of the rope storage box 9 is fixedly connected with a rope pulling rib, and the surface of the centrifugal block 16 is movably connected with the rotary vane 3 through.
The working principle is as follows: when the casting metal solution flows into the rotating blade 3, the rotating blade 3 drives the rotating disc 1 to rotate, the rotating disc 1 rotates to drive the rotating clamping wheel 2 to rotate, the rotating clamping wheel 2 rotates to drive the plugging pull rope 7 to wind and contract around the fixed column 8, the plugging pull rope 7 drives the push-up slider 10 to move upwards, the push-up slider 10 moves upwards to drive the push-up rod 11 to move upwards, the push-up rod 11 moves upwards to drive the plugging block 12 to move upwards, when the metal solution flows out to a certain amount of the mold, the plugging block 12 blocks the liquid outlet filter 5, so that the metal solution does not flow into the mold, and the rotating clamping wheel 2 is clamped by the pawl 17, so the pawl 17 cannot reset under the action of the rope storage box 9, at the moment, after the reset button 21 is manually pressed, the reset rod 20 is driven to push the pawl 17 upwards, and the pawl 17 cannot clamp the rotating clamping wheel 2, at this moment, the rotating clamping wheel 2 resets, the metal solution can be secondarily filled after the rotating clamping wheel 2 resets, meanwhile, the rotating rotary vane 3 rotates to drive the centrifugal block 16 to rotate, the centrifugal block 16 compresses the centrifugal spring 14 under the action of centrifugal force, so that the outlet of the air outlet hole 15 is opened, mixed impurity-removing gas in the air outlet hole 15 enters the metal solution, the impurities in the metal solution react to generate precipitate, and the filtering net on the liquid outlet filtering port 5 is used for filtering.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
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 (6)

1. The utility model provides an automatic quantitative cast device that fills of intelligent manufacturing based on liquid potential energy, includes rolling disc (1), its characterized in that: the inner part of the rotating disc (1) is fixedly connected with a rotating clamping wheel (2), the inner part of the rotating disc (1) is fixedly connected with a fixed disc (13), the surface of the rotating disc (1) is fixedly connected with a rotating blade (3), the surface of the rotating blade (3) is fixedly connected with a fixed frame (22), the surface of the rotating blade (3) is movably connected with a liquid outlet frame (4) through a sliding chute, the inner part of the liquid outlet frame (4) is fixedly connected with a liquid outlet filtering port (5), the inner part of the rotating blade (3) is fixedly connected with a centrifugal spring (14), one end of the centrifugal spring (14) far away from the rotating blade (3) is fixedly connected with a centrifugal block (16), the inner part of the rotating blade (3) is fixedly connected with an air outlet hole (15), the surface of the rotating clamping wheel (2) is fixedly connected with a fixed column (8), and the surface of the fixed column (8) is, the surface of the plugging pull rope (7) is movably connected with a fixed pulley (6), one end of the plugging pull rope (7) far away from the fixed pulley (6) is fixedly connected with an upward pushing slide block (10), one end of the plugging pull rope (7) far away from the push-up sliding block (10) is fixedly connected with a rope storage box (9), an upper push rod (11) is fixedly connected to the surface of the upper push slider (10), a blocking block (12) is fixedly connected to the surface of the upper push rod (11), the surface of the rotary clamping wheel (2) is fixedly connected with a reset button (21), the surface of the reset button (21) is movably connected with a reset rod (20), the surface of the reset rod (20) is movably connected with a pawl (17), the surface of the pawl (17) is fixedly connected with a pawl spring (19), and one end, far away from the pawl (17), of the pawl spring (19) is fixedly connected with a pawl fixing block (18).
2. The intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy as claimed in claim 1, wherein: the rope storage device is characterized in that a pawl (17) is movably connected to the surface of the fixed disc (13), a pawl fixed block (18) is fixedly connected to the surface of the fixed disc (13), a fixed pulley (6) is movably connected to the surface of the fixed disc (13), and a rope storage box (9) is fixedly connected to the surface of the fixed disc (13).
3. The intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy as claimed in claim 1, wherein: the upward pushing sliding block (10) is movably connected with the fixed disc (13) through a sliding groove formed in the surface of the fixed disc (13), an extension spring is fixedly connected to the surface of the upward pushing sliding block (10), and the fixed disc (13) is fixed to one end, far away from the upward pushing sliding block (10), of the extension spring.
4. The intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy as claimed in claim 1, wherein: the inside fixedly connected with filter screen of play liquid filtration mouth (5), the surperficial swing joint of push up rod (11) has the slide bar, and the one end fixedly connected with pulley of push up rod (11) is kept away from to the slide bar, and the pulley passes through the inside spout of seting up of liquid frame (4) and goes out liquid frame (4) swing joint, fixedly connected with supporting spring between slide bar and the push up rod (11).
5. The intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy as claimed in claim 1, wherein: the inside of the rope storage box (9) is fixedly connected with a stay cord rib, and the surface of the centrifugal block (16) is movably connected with the rotating blade (3) through a sliding groove arranged in the rotating blade (3).
6. The intelligent manufacturing automatic quantitative pouring and casting device based on liquid potential energy as claimed in claim 1, wherein: the surface of the fixed frame (22) is fixedly connected with a rotating disc (1), the surface of the blocking block (12) is movably connected with the liquid outlet frame (4) through a sliding groove formed in the liquid outlet frame (4), and the size of the blocking block (12) is larger than that of the liquid outlet filter opening (5).
CN202011127184.XA 2020-10-20 2020-10-20 Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy Withdrawn CN112264609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011127184.XA CN112264609A (en) 2020-10-20 2020-10-20 Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011127184.XA CN112264609A (en) 2020-10-20 2020-10-20 Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy

Publications (1)

Publication Number Publication Date
CN112264609A true CN112264609A (en) 2021-01-26

Family

ID=74341169

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011127184.XA Withdrawn CN112264609A (en) 2020-10-20 2020-10-20 Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy

Country Status (1)

Country Link
CN (1) CN112264609A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923094A (en) * 1973-02-19 1975-12-02 Dowa Mining Co Casting apparatus for casting large-sized ingots
ES2009533A6 (en) * 1988-02-12 1989-10-01 Egea Marcos Ricardo Luis Sliding valve for foundry equipment
CN101073828A (en) * 2007-06-22 2007-11-21 石家庄镁淇科技发展有限公司 Apparatus for pouring magnesium-alloy quantitatively
CN102672134A (en) * 2012-06-15 2012-09-19 徐州豪威矿山设备有限公司 Automatic quantitative centrifugal casting machine
CN208513633U (en) * 2018-06-15 2019-02-19 济南海圣机电设计有限公司 A kind of automatic ration casting device
CN210172525U (en) * 2019-05-28 2020-03-24 青岛科华石油机械有限公司 Mold cylinder for centrifugal casting
CN210305677U (en) * 2019-07-09 2020-04-14 国工恒昌新材料沧州有限公司 Lead frame copper alloy ingot casting device capable of avoiding internal defects
CN210966970U (en) * 2019-09-12 2020-07-10 泰安天方机电安装有限公司 Electric disc casting machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923094A (en) * 1973-02-19 1975-12-02 Dowa Mining Co Casting apparatus for casting large-sized ingots
ES2009533A6 (en) * 1988-02-12 1989-10-01 Egea Marcos Ricardo Luis Sliding valve for foundry equipment
CN101073828A (en) * 2007-06-22 2007-11-21 石家庄镁淇科技发展有限公司 Apparatus for pouring magnesium-alloy quantitatively
CN102672134A (en) * 2012-06-15 2012-09-19 徐州豪威矿山设备有限公司 Automatic quantitative centrifugal casting machine
CN208513633U (en) * 2018-06-15 2019-02-19 济南海圣机电设计有限公司 A kind of automatic ration casting device
CN210172525U (en) * 2019-05-28 2020-03-24 青岛科华石油机械有限公司 Mold cylinder for centrifugal casting
CN210305677U (en) * 2019-07-09 2020-04-14 国工恒昌新材料沧州有限公司 Lead frame copper alloy ingot casting device capable of avoiding internal defects
CN210966970U (en) * 2019-09-12 2020-07-10 泰安天方机电安装有限公司 Electric disc casting machine

Similar Documents

Publication Publication Date Title
CN210304518U (en) Multi-functional tealeaves screening separator
CN110440590B (en) Melting device for metal casting based on liquid level equal height
CN112264609A (en) Intelligent manufacturing automatic quantitative filling casting device based on liquid potential energy
CN216639271U (en) Glass frit drags for material device for production of shrend method of glass liquid
CN210159292U (en) Filter for paint production
CN208852506U (en) A kind of sanitary sewage filter
CN213668046U (en) Dewatering device for casting wax recovery
CN211029484U (en) Sand mould grinding device of casting usefulness
CN209614160U (en) A kind of modified metal art work cast molding machine
CN206881272U (en) A kind of equipment for handling coolant
CN214390974U (en) Electronic screening separator device is used in fertilizer production
CN208520204U (en) A kind of molten iron melting furnace
CN109865812B (en) Metal rheological purification pressure forming equipment
CN207886805U (en) Novel extraction filter device
CN214537357U (en) Device is smelted to high-efficient fused sand
CN219631430U (en) Sand screening equipment
CN220736564U (en) Gold separating noble liquid filtering and purifying device in gold wet purification process
CN215144672U (en) Tundish slag laying-down stopper rod for continuous casting
CN216912012U (en) Wax pressing machine convenient to adjust
CN214763920U (en) Plant material centrifugation purification device
CN218043568U (en) Rocking device for rock tea processing
CN218175120U (en) Processing liquid settling tank for processing aluminum alloy shell
CN214551732U (en) Bearing super-essential oil centralized circulating and filtering system
CN212091091U (en) Sand-water separator
CN210764965U (en) High-temperature melting processing device for glass

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

Application publication date: 20210126

WW01 Invention patent application withdrawn after publication