CN106695039A - Cutting wire closed-loop one-way wire moving device of multi-set-wire-cylinder electrical spark wire cutting machine tool - Google Patents
Cutting wire closed-loop one-way wire moving device of multi-set-wire-cylinder electrical spark wire cutting machine tool Download PDFInfo
- Publication number
- CN106695039A CN106695039A CN201710071784.0A CN201710071784A CN106695039A CN 106695039 A CN106695039 A CN 106695039A CN 201710071784 A CN201710071784 A CN 201710071784A CN 106695039 A CN106695039 A CN 106695039A
- Authority
- CN
- China
- Prior art keywords
- wire
- cutting
- cylinder
- silk
- cutting wire
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
- B23H7/08—Wire electrodes
- B23H7/10—Supporting, winding or electrical connection of wire-electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
- B23H7/08—Wire electrodes
- B23H7/10—Supporting, winding or electrical connection of wire-electrode
- B23H7/104—Wire tension control
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention relates to a cutting wire closed-loop one-way wire moving device of a multi-set-wire-cylinder electrical spark wire cutting machine tool. The cutting wire closed-loop one-way wire moving device comprises a bracket (12) and wire cylinders, and the wire cylinders are installed on the bracket (12) through shafts; the two sides of the bracket (12) are provided with a gear set (4) and a motor (3) correspondingly, and the gear set (4) and the motor (3) are connected through a shaft; the bracket (12) is provided with at least two wire cylinder sets parallel to one another, the wire cylinders are uniformly wound by a cutting wire, the cutting wire is in end-to-end connection to form a closed-loop state, the cutting wire operates in a one-way cycling manner through automatic tension controllers (5) and a guide wheel (7), a guide wheel (8), a guide wheel (9) and a guide wheel (10), and a workpiece (6) is subjected to spark cutting. The cutting wire closed-loop one-way wire moving device is steady in operation and high in machining precision; and meanwhile, advantages of high-speed wire moving equipment which is low in cost, low in operation cost, high in efficiency and easy and convenient to operate are maintained.
Description
Technical field
The present invention relates to electric spark linear cutting machine and electric spark machining field, specifically a kind of multigroup cylinder electricity is fiery
The discharge machine bed unidirectional wire drive device of cutting wire closed loop.
Background technology
Present electric spark machining field has two kinds of lathes：One kind is fast wire winding lathe, and the speed of service of cutting wire is 8-
10 meter per seconds, two of cutting wire is separately fixed at the two ends of silk cylinder, as the alternating for rotating and reverse of motor is changed, cutting
The reciprocal way traffic of silk, cuts repeatedly, high in machining efficiency and can cut workpiece more than 1 meter, and equipment price is low, operating cost
It is low, easy to operate, it is adapted to general workpiece and mould processing, it is popular in Chinese market.But the lathe unfortunately processes essence
Spend poor, poor surface smoothness.
Another kind is slow wire feeding lathe, and the speed of service of cutting wire is in 0.2 meter per second or so, cutting wire one direction wire, one
Just scrapped after secondary property is used, that is, cutting wire cuts workpiece once, consumptive material is high, high processing costs.But the lathe cutting wire exists
Remain that a direction and thread tension are consistent during wire, operate steadily, therefore machining accuracy is high, any surface finish
Degree is high, is adapted to the processing of high accuracy, best bright finish product and mould.But the high equipment cost, import price is fast wire winding
Tens times, domestic also wants ten times or so, and it is high to add operating cost, is only just used in the extra high field of required precision,
China less popularizes.The equipment still another shortcoming is that the workpiece more than 250 millimeters thicks can not be processed, to the height of thicker product
Precision processing is one and regrets.
To illustrate the invention, the wire feeder and cutting machine of the cutting wire of current fast wire winding lathe are introduced first
Structure.
At present, existing wire feeder is made up of silk cylinder, wire motor, speed-changing gear box, promotion screw mandrel, guide rail, support.
Hundreds of meters of cutting wire wound in parallel are on silk cylinder.Winding process be cutting wire one be fixed on right-hand member silk cylinder on, clockwise or
Wrapped anti-clockwise, winding enters cutting mechanism close to cutting wire during left end by top guide wheel, through workpiece, by bottom
Guide wheel returns to left end, and left end is fixed on after cutting wire is tensioned, and cutting wire winding is completed.
The cutting mechanism of fast wire winding lathe is all identical, and by two blocks of plankers on lathe bed, the planker is by X-axis, Y
Axle is controlled respectively, one group of guide wheel, adds the pulse power and controller composition cutting part.
Wire-conveying mechanism of quick walk is drawn two silk threads and is introduced and pass through workpiece by cutting mechanism guide wheel.The characteristics of original system runs is electricity
Machine promotes screw mandrel to drive silk cylinder base to be moved on guide rail when driving silk cylinder rotation, the motor under the limit switch control at pedestal two ends
Can ceaselessly commutate, i.e., rotate and reverse repeatedly, at the same pedestal with silk cylinder also from left to right, and move back and forth from right to left.
The vibration of motor commutation；The vibration that reciprocating motion of the support on guide rail causes；Cutting wire commutation is cut from the top down a little while
Cut, cut from bottom to top a little while, the processing resistance that the change of cut direction causes fluctuates so as to bounce of generation etc. is all
The key factor of influence fast wire winding machine finish and finish.
The content of the invention
To avoid disadvantages described above, it is an object of the present invention to provide a kind of multigroup cylinder electric spark linear cutting machine cutting wire closed loop
Unidirectional wire drive device, substitution fast wire winding lathe " wire transporting assembly ", so as to combine the excellent of fast wire winding and slow wire feeding both lathes
Point, had both reduced manufacturing expense and processing cost, and spark-erosion machine tool working ability and precision are improved again, solved the superhard work of super thick
The problem of part superhigh precision processing.
Specific way is that will to use original cutting wire wire feeder instead closed loop of the invention on fast wire winding lathe unidirectional
Wire drive device, the other structures and electrical equipment control of former lathe are basically unchanged.Therefore the total cost of equipment increases limited.
To achieve the above objectives, present invention employs following technical scheme：A kind of multigroup cylinder electric spark linear cutting machine
The unidirectional wire drive device of cutting wire closed loop, including support, silk cylinder, the silk cylinder are rack-mount by axle, the both sides point of support
Gear train and motor are not provided with, the gear train is connected with motor by axle, the upper surface of support is provided with starting endpoint, described
Support is provided with the silk cylinder group being parallel to each other no less than two, and cutting wire is uniformly curled up on the silk cylinder, and the cutting wire is first
Tail connects, and forms closed loop states, and automatic tension controller and guide wheel are provided with the cantilever of column, and the cutting wire is by automatic
Tension controller and guide wheel one-way circulation are run, and spark cutting is carried out to workpiece.
Silk cylinder component of the present invention is first cylinder group and second cylinder group, and each cylinder group is by no less than two silk cylinders
Combine；The silk cylinder group is even number；The surface of silk cylinder is intensive be provided with perpendicular to wire tube shaft to groove, its spacing phase
Deng；Guide wheel below the automatic tension controller is movable.
After using above technical scheme, because the mode of wire is one direction operation with closed ring, with slow wire feeding one direction wire
Unanimously, therefore operate steadily, machining accuracy is high, at the same remain that fast wire winding equipment manufacturing cost is low, operating cost is low, efficiency high, behaviour
The characteristics of making easy, is super thick, the high accuracy of superhard workpiece, and best bright finish electric spark provides equipment, realizes closed loop cutting wire list
Direction is continuously run, and completes the multigroup function of cylinder spark cutting.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is silk of the present invention cylinder combination diagram.
Specific embodiment
According to Fig. 1, Fig. 2, the present invention multigroup cylinder electric spark linear cutting machine unidirectional wire of cutting wire closed loop of one kind
Device, including support 12, silk cylinder, silk cylinder is arranged on support 12 by axle, and support 12 is respectively provided on two sides with gear train 4
With motor 3, the gear train 4 is connected with motor 3 by axle, and the upper surface of support 12 is provided with starting endpoint 11, the support
12 are provided with the silk cylinder group being parallel to each other no less than two, on two silk cylinder composition silk cylinders of in the same size, parallel installation
Cutting wire uniformly is curled up, the cutting wire is end to end, form closed loop states, automatic tension is installed on the cantilever of column 14
Controller 5 and guide wheel 7,8,9,10, the cutting wire are transported by automatic tension controller 5 and the one-way circulation of guide wheel 7,8,9,10
OK, spark cutting is carried out to workpiece 6.
Silk cylinder component of the present invention is first cylinder group 1 and second cylinder group 2, and each cylinder group is by no less than two silks
Cylinder is combined, and can be 3,4,5 etc.；The silk cylinder group is even number, is 2,4,6,8 ...；The silk
The surface of cylinder be provided with perpendicular to wire tube shaft to intensive groove, its spacing is equal；The guide wheel of the lower section of the automatic tension controller 5
13 is movable, is required according to cutting technique, automatically adjusts rate of tension.
The unidirectional wire drive device of closed loop of the present invention is arranged on the wire transporting assembly position of common fast wire winding lathe, and 1 is first in Fig. 1
Group silk cylinder, is made up of the silk cylinder of two in the same size, parallel installations；2 is second group of silk cylinder, is also in the same size, flat by two
The silk cylinder composition that row is installed.4 silk cylinder sizes of the above are consistent and are parallel to each other.4 silks cylinder surface dense arrangements be parallel to each other and
Perpendicular to the annular ditch groove of axial direction, low water and orderly proper alignment when cutting wire winds, 4 silks cylinders are by motor 3 and the band of gear train 4
It is dynamic, it is ensured that silk cylinder synchronous rotary in the same direction, cutting wire by the adjusting elasticity of automatic tension controller 5, by 7,8,9,10 pairs, guide wheel
Workpiece 6 carries out spark cutting, and workpiece 6 is arranged on the workbench 13 controlled by X-axis and Y-axis, the work controlled by X-axis Y-axis
Make the cutting mechanism that the platform 13, pulse power, switch board etc. constitute electric spark linear cutting machine.
The specific embodiment of the invention is as follows：The upper silk cylinder that cutting wire starting termination is fixed on into first group of silk cylinder group 1 is other
On the end points 11 of support 12, silk is manually twined from left to right to first group of silk cylinder, starting is carried on the back from the upper silk cylinder back side to lower silk cylinder
Face, in first groove, cutting wire is wound into front and enters upper silk cylinder second groove upwards from lower silk cylinder all low waters from the back side, turns up and down
The back side is wound into lower silk cylinder second groove from top to bottom, around facing up into upper silk the 3rd groove of cylinder, cutting be transferred to the back side to
Under enter lower silk the 3rd groove of cylinder and and so on twine always to right-hand member and enter last groove from the back side, become a full member face not
Again upwards but guide to the lower silk cylinder right-hand member back side of second cylinder group, cutting wire is drawn upward, is entered from lower silk cylinder right-hand member first groove
The silk cylinder groove of right-hand member second in second cylinder group, is transferred to the back side and enters lower silk the second groove of cylinder downwards, becomes a full member face from the back side, from the second groove
Be directed upwardly into silk cylinder the 3rd groove, so repeatedly, when cutting wire under left end the second groove of cylinder back side draw after from face up into
The upper silk cylinder groove of left end first, turns round and enter downwards under left end silk cylinder and go to front to go out from the first groove, and now cutting wire is by leading
Wheel 10,9, tension controllers 5 are entered through workpiece 6, by 8,7, extend in first cylinder group the silk cylinder groove of left end first, and solid
The initiating terminal cutting wire of the end points 11 being scheduled in frame 12 is relative to be connect, and docking uses welding procedure, after the completion of docking cutting wire into
Closed loop states, cutting wire can keep the cutting thread tension of default constant under the control of automatic tension controller.
The course of work of the invention：According to Fig. 1, when electric spark linear cutting machine of the present invention works, wire transporting motor 3
Rotate counterclockwise, the 4 silks cylinder on 2 groups of silk cylinders turns clockwise simultaneously, drive cutting wire to be moved along silk cylinder groove,
Sent out from upper silk cylinder left end first groove of first cylinder group 1, by tensioning apparatus 5, turn to guide wheel 7,8, electric fire is carried out to workpiece 6
Flower cutting processing, then guide wheel 9,10 into second lower silk cylinder groove of left end first of cylinder group 2 is transferred to, through second cylinder group about 2
Operated clockwise while silk cylinder, cutting wire goes to lower silk cylinder right-hand member, cutting wire enters along the direction of arrow from second cylinder group 2
To first lower silk cylinder of cylinder group 1, cutting wire is moved to as first cylinder group turns clockwise about 1 while two cylinders
The upper silk cylinder groove of left end first, produces from first first groove of the left end of cylinder group 1 top and enter back into the direction of the arrow tensioning apparatus 5,
Workpiece 6 is processed by the operation of guide wheel 7,8,6,9,10.The continuous rotate counterclockwise of motor 3, cutting wire will always along figure
Middle direction of arrow operation, that is, previously described closed loop one direction is continuously run.
During work, cutting wire connects power cathode, and workpiece 6 connects positive source, and workpiece 6 is arranged on to be had on the planker of X-axis Y-axis,
With the translation under the program of computer settings of workpiece 6, cutting wire is moved from the top down（One direction）, or move from bottom to top
（One direction）, electrical discharge machining is carried out to workpiece 6, complete cutting function.
Unidirectional wire form of the invention is identical with slow wire feeding, eliminates motor, the vibration of silk cylinder frequently positive and reverse steering,
Avoid a cylinder base and ceaselessly come and go the vibration for causing, reduce the shake of cutting wire, cutting wire operates steadily, and is processed to improve
The precision and finish of part create condition.
The unidirectional wire drive device of closed loop of the invention, is combined, this group by two or more cylinder groups
Close according to actual conditions, can select horizontally arranged, it is also possible to be arranged above and below.
The wire of existing wire cutting is both of which, and they are each advantageous also respectively to have its defect.Present invention incorporates this two
The advantage of the pattern of kind, creates a kind of brand-new wire mode, is superelevation, the high accuracy of superhard material, best bright finish electric spark
Processing provides condition, and equipment manufacturing cost is low, and operating cost is low, is General Promotion China intermetallic composite coating quality and the manufacture of raising China
Industry level creates condition.
Claims (5)
1. a kind of multigroup cylinder electric spark linear cutting machine unidirectional wire drive device of cutting wire closed loop, it is characterised in that：Including support
（12）, silk cylinder, silk cylinder is arranged on support by axle（12）On, support（12）Be respectively provided on two sides with gear train（4）And electricity
Machine（3）, the gear train（4）And motor（3）It is connected by axle, support（12）Upper surface be provided with starting endpoint（11）, institute
State support（12）The silk cylinder group being parallel to each other no less than two is provided with, cutting wire is uniformly curled up on the silk cylinder, it is described to cut
Cutting wire is end to end, forms closed loop states；Column（14）Cantilever on automatic tension controller is installed（5）And guide wheel（7）、
（8）、（9）、（10）, the cutting wire is by automatic tension controller（5）And guide wheel（7）、（8）、（9）、（10）One-way circulation is transported
OK, to workpiece（6）Carry out spark cutting.
2. multigroup cylinder electric spark linear cutting machine unidirectional wire drive device of cutting wire closed loop of one kind according to claim 1,
It is characterized in that：The silk cylinder component is first cylinder group（1）With second cylinder group（2）, each cylinder group is by no less than two
Silk cylinder is combined.
3. multigroup cylinder electric spark linear cutting machine unidirectional wire drive device of cutting wire closed loop of one kind according to claim 1,
It is characterized in that：The silk cylinder group is even number.
4. multigroup cylinder electric spark linear cutting machine unidirectional wire drive device of cutting wire closed loop of one kind according to claim 1,
It is characterized in that：The surface of the silk cylinder is provided with the intensive groove perpendicular to wire tube shaft, and its spacing is equal.
5. multigroup cylinder electric spark linear cutting machine unidirectional wire drive device of cutting wire closed loop of one kind according to claim 1,
It is characterized in that：The automatic tension controller（5）The guide wheel of lower section is movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071784.0A CN106695039A (en) | 2017-02-09 | 2017-02-09 | Cutting wire closed-loop one-way wire moving device of multi-set-wire-cylinder electrical spark wire cutting machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071784.0A CN106695039A (en) | 2017-02-09 | 2017-02-09 | Cutting wire closed-loop one-way wire moving device of multi-set-wire-cylinder electrical spark wire cutting machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106695039A true CN106695039A (en) | 2017-05-24 |
Family
ID=58909133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710071784.0A Pending CN106695039A (en) | 2017-02-09 | 2017-02-09 | Cutting wire closed-loop one-way wire moving device of multi-set-wire-cylinder electrical spark wire cutting machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106695039A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605089A (en) * | 2020-06-28 | 2020-09-01 | 南通华兴石油仪器有限公司 | A circulation cutting device for preparing unconventional rock specimen |
| CN112338304A (en) * | 2020-10-14 | 2021-02-09 | 广东坚美铝型材厂（集团）有限公司 | Die and process for machining die cavity through linear cutting |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818848A (en) * | 1985-08-21 | 1989-04-04 | Fanuc Limited | Automatic wire connecting apparatus for wire cut electric discharge machine |
| JP2004090132A (en) * | 2002-08-30 | 2004-03-25 | Fanuc Ltd | Wire electric discharge machine |
| CN101428366A (en) * | 2005-11-01 | 2009-05-13 | 广东工业大学 | Wire-electrode cutting electromachining machine tool for asymmetrical guide frame notch cutting in series |
| CN104070249A (en) * | 2014-07-12 | 2014-10-01 | 上海涌憬液压机械有限公司 | Linear cutting double-roller single-way wire-passing and wire-storing system |
| CN104551278A (en) * | 2013-10-25 | 2015-04-29 | 俄家齐 | Wire storage and conveyance mechanism adopting one-way infinite loop manner |
| CN206455257U (en) * | 2017-02-09 | 2017-09-01 | 张茗凯 | A kind of multigroup unidirectional wire drive device of cylinder electric spark linear cutting machine cutting wire closed loop |
-
2017
- 2017-02-09 CN CN201710071784.0A patent/CN106695039A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818848A (en) * | 1985-08-21 | 1989-04-04 | Fanuc Limited | Automatic wire connecting apparatus for wire cut electric discharge machine |
| JP2004090132A (en) * | 2002-08-30 | 2004-03-25 | Fanuc Ltd | Wire electric discharge machine |
| CN101428366A (en) * | 2005-11-01 | 2009-05-13 | 广东工业大学 | Wire-electrode cutting electromachining machine tool for asymmetrical guide frame notch cutting in series |
| CN104551278A (en) * | 2013-10-25 | 2015-04-29 | 俄家齐 | Wire storage and conveyance mechanism adopting one-way infinite loop manner |
| CN104070249A (en) * | 2014-07-12 | 2014-10-01 | 上海涌憬液压机械有限公司 | Linear cutting double-roller single-way wire-passing and wire-storing system |
| CN206455257U (en) * | 2017-02-09 | 2017-09-01 | 张茗凯 | A kind of multigroup unidirectional wire drive device of cylinder electric spark linear cutting machine cutting wire closed loop |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605089A (en) * | 2020-06-28 | 2020-09-01 | 南通华兴石油仪器有限公司 | A circulation cutting device for preparing unconventional rock specimen |
| CN112338304A (en) * | 2020-10-14 | 2021-02-09 | 广东坚美铝型材厂（集团）有限公司 | Die and process for machining die cavity through linear cutting |
| CN112338304B (en) * | 2020-10-14 | 2022-05-24 | 广东坚美铝型材厂（集团）有限公司 | Die and process for machining die cavity through wire cutting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105290278A (en) | Spiral mesh enclosure producing equipment | |
| CN104971954A (en) | High-speed high-stability large and medium drawing machine for copper conductor | |
| CN202702388U (en) | Automatic roll-over feed mechanism of concrete tubular pile steel bar upsetting machine | |
| CN103204621B (en) | Device for directly drawing helical circular quartz tube by continuous-melt method and drawing method | |
| CN105034400A (en) | Numerical control winding apparatus and method for square glass fiber reinforced plastic air pipe | |
| CN102350551A (en) | Wire-feed twin-wire exchange wire feeding system in WEDM (wire cut electrical discharge machining) | |
| CN107993835A (en) | Transformer Coil Winding Machine | |
| CN103950120A (en) | Six-guide-wheel multi-line cutting machine | |
| CN106695039A (en) | Cutting wire closed-loop one-way wire moving device of multi-set-wire-cylinder electrical spark wire cutting machine tool | |
| CN109989139B (en) | Novel glass fiber forming and winding equipment | |
| CN111003588A (en) | Automatic yarn winding equipment for wind power blade bolt sleeve | |
| CN206455257U (en) | A kind of multigroup unidirectional wire drive device of cylinder electric spark linear cutting machine cutting wire closed loop | |
| CN105553199B (en) | New Type Linear Motor stator coil winding machine | |
| CN209233340U (en) | A kind of high-voltage cable insulating core flaying machine | |
| CN205271187U (en) | Two net welding machines | |
| CN103537588A (en) | Outer wire winding machine for cylindrical workpieces | |
| CN204135217U (en) | Pipe cutting machine automatic charging device | |
| CN104724541B (en) | cable winding device | |
| CN209337869U (en) | A kind of cable winding storage material type tension control mechanism | |
| KR101479546B1 (en) | Straight feed tools for Spring forming machine | |
| CN208008169U (en) | A kind of take-up of quick take-up | |
| CN102957279A (en) | Motor winding machine | |
| CN216583493U (en) | Wire feeding mechanism for winding machine | |
| CN205709163U (en) | A kind of reel for yarn line apparatus | |
| CN203792549U (en) | Multi-wire sawing machine with six guide wheels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |