CN108296862A - A kind of automatic filings discharging device of numerically-controlled machine tool - Google Patents

A kind of automatic filings discharging device of numerically-controlled machine tool Download PDF

Info

Publication number
CN108296862A
CN108296862A CN201711469747.1A CN201711469747A CN108296862A CN 108296862 A CN108296862 A CN 108296862A CN 201711469747 A CN201711469747 A CN 201711469747A CN 108296862 A CN108296862 A CN 108296862A
Authority
CN
China
Prior art keywords
sieve
material bin
discharge port
casing
numerically
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Withdrawn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
CN201711469747.1A
Other languages
Chinese (zh)
Inventor
殷杭益
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.)
Ningbo Jiangbei Bai Di Communication Network Engineering Co Ltd
Original Assignee
Ningbo Jiangbei Bai Di Communication Network 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 Ningbo Jiangbei Bai Di Communication Network Engineering Co Ltd filed Critical Ningbo Jiangbei Bai Di Communication Network Engineering Co Ltd
Priority to CN201711469747.1A priority Critical patent/CN108296862A/en
Publication of CN108296862A publication Critical patent/CN108296862A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042Devices for removing chips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042Devices for removing chips
    • B23Q11/0067Devices for removing chips chip containers located under a machine or under a chip conveyor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10Arrangements for cooling or lubricating tools or work
    • B23Q11/1069Filtration systems specially adapted for cutting liquids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The invention discloses a kind of automatic filings discharging devices of numerically-controlled machine tool, including casing, second catch box and the second discharge port, water filling layer is provided on the inner wall of the casing, the left side upper end of the casing is connected with material bin, the left end of the material bin is equipped with suction ventilator, the right end of the suction ventilator is connected with nozzle, the nozzle is arranged in the inside of material bin, the inside of the material bin is equipped with baffle, it is connected with pipeline between first catch box and material bin, second catch box is arranged in the bottom end of casing, the right end of the casing is connected with nesting box, the upper end of the fixed plate is mounted with driving motor, the inside of the nesting box is equipped with the second sieve, it is connected with spring between the marker board and material bin, the upper end of second discharge port is provided with the second striker plate.The automatic filings discharging device of the numerically-controlled machine tool reduces liquid and enters in plate chain, to be damaged to plate chain, in addition improves the rate of recovery of mixing liquid in chip.

Description

A kind of automatic filings discharging device of numerically-controlled machine tool
Technical field
The present invention relates to fields of numeric control technique, specially a kind of automatic filings discharging device of numerically-controlled machine tool.
Background technology
The exclusion of chip is that mechanical processing has to the major issue considered.This problem seems for numerically-controlled machine tool It is even more important.Numerically-controlled machine tool it is high in machining efficiency, in the unit interval borings of numerically-controlled machine tool largely defeat machining area, such as Fruit eliminates not in time, will necessarily cover or be wrapped on workpiece, and making to process automatically can not continue.And hot chip is also Heat can be distributed to lathe worker workpiece, so that lathe or workpiece is generated thermal deformation, influence machining accuracy.Therefore, rapid, effectively arrange Except chip is particularly significant for numerical control machine tooling, and the main function of chip removal device is that chip is discharged to number from machining area It controls except lathe.Often mix cutting fluid in chip on numerically controlled lathe and grinding machine, chip removal device is cut from wherein isolating Bits, and they are sent into chip collecting box(Vehicle)It is interior, and cutting fluid is then recycled to tank for coolant.CNC milling machine, machining center On the table, chip cannot fall directly into chip removal device for workpiece installation with digital-control boring-milling machine, therefore generally require using big stream Amount coolant liquid is washed away, or so that chip is entered chip space using the methods of compressed air purging, then recycling cutting fluid and is discharged Chip, the installation site of automatic filings discharging device is generally all as close to cutting zone.As the automatic filings discharging device of lathe is mounted in The automatic filings discharging device of rotational workpieces text, milling machine and machining center is mounted on the return flume of lathe bed or workbench avris position, In favor of simplifying lathe and chip removal device structure, reduces lathe floor space, improve chip removal efficiency.The chip of discharge is generally all fallen Enter in chip collecting box or trolley, some is then directly discharged into workshop chip removal system.
During chip removal, cutting liquid is directly fallen in chip removal device the automatic filings discharging device of existing numerically-controlled machine tool Plate chain on, and higher temperature is carried when chip is just fallen, for a long time can plate chain can be damaged, and need manually to see It keeps, wastes time.
Invention content
The purpose of the present invention is to provide a kind of automatic filings discharging devices of numerically-controlled machine tool, to solve to carry in above-mentioned background technology For the automatic filings discharging device for the numerically-controlled machine tool having during chip removal, cutting liquid directly falls to the plate chain in chip removal device On, and higher temperature is carried when chip is just fallen, for a long time can plate chain can be damaged, and need artificial guard, waste The problem of time.
To achieve the above object, the present invention provides the following technical solutions:A kind of automatic filings discharging device of numerically-controlled machine tool, including Casing, the second catch box and the second discharge port are provided with water filling layer on the inner wall of the casing, and the inside of casing is equipped with plate The left side upper end of chain, the casing is connected with material bin, and casing is connected with material bin, and the left end of the material bin is equipped with The right end of suction ventilator, the suction ventilator is connected with nozzle, and the nozzle is arranged in the inside of material bin, and on the outer surface of nozzle It is provided with the first sieve, the inside of the material bin is equipped with baffle, and the left end of material bin is mounted with the first catch box, described It is connected with pipeline between first catch box and material bin, and is provided with leakage fluid dram on the outer surface of the first catch box, described second Catch box is arranged in the bottom end of casing, and the right end of the casing is connected with nesting box, fixed plate is equipped on the nesting box, and The upper end of nesting box is equipped with acoustooptic alarm, and the upper end of the fixed plate is mounted with driving motor, and the outer surface of fixed plate On control panel is installed, the inside of the nesting box is equipped with the second sieve, and the lower end of nesting box is mounted with collecting cart, institute The right end for stating nesting box is connected with the first discharge port, and the first discharge port is internally provided with striker plate, second discharge port It is arranged in the bottom of nesting box, and the lower-left end of the second discharge port is equipped with infrared distance sensor, is provided on the baffle Marker board, and the left end of baffle is provided with third sieve, and spring is connected between the marker board and material bin, described second goes out The upper end of material mouth is provided with the second striker plate.
Preferably, the setting angle of the baffle is 30 °, and inclined direction is the first catch box side, the marker board It is not affected by into a single integrated structure with baffle group when pressure.
Preferably, it is connected between the third sieve and pipeline.
Preferably, described infrared to be electrically connected between the infrared distance sensor and acoustooptic alarm, control panel There are two distance measuring sensor settings, a lower end for being mounted on the first discharge port, a lower end for being mounted on the second discharge port.
Preferably, the setting angle of second sieve is 30 °, and inclined direction is the first discharge port side.
Preferably, the extraction direction of first striker plate is vertical, and the extraction direction of second striker plate is level.
Preferably, the sieve pore of first sieve is less than the sieve pore of the second sieve, and the sieve pore of the first sieve is sieved with third The slot size of net is identical.
Compared with prior art, the beneficial effects of the invention are as follows:The automatic filings discharging device of the numerically-controlled machine tool enters in chip Before casing, is worked by the liquid drain that removes of baffle and the progress of third sieve for the first time in material bin, reduces liquid and enter in plate chain, To be damaged to plate chain, the rate of recovery of mixing liquid in chip is in addition improved;Water filling layer is provided on the inner wall of casing, Temperature when chip is transported in casing can be reduced using water filling layer, while can also reduce that inner panel chain generates at work makes an uproar Sound;Two groups of discharge ports are set for two groups of different size of chips of separate collection, improve working efficiency, and in two groups of discharge ports Lower end is mounted on infrared distance sensor, can incude the distance between collecting cart and discharge port using infrared distance sensor, When the chip accumulation in collecting cart is higher, collecting cart is closer at a distance from discharge port, when reaching certain distance, acoustooptic alarm It sounds, staff is reminded to replace collecting cart, artificial guard's time can be reduced, while striker plate is set in two groups of discharge outlets, It can manual control load and stopping discharging.
Description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the first mesh structure schematic diagram of the invention;
Fig. 3 is enlarged structure schematic diagram at A of the present invention.
In figure:1, casing, 2, water filling layer, 3, plate chain, 4, material bin, 5, suction ventilator, 6, nozzle, the 7, first sieve, 8, gear Plate, the 9, first catch box, 10, pipeline, 11, leakage fluid dram, the 12, second catch box, 13, fixed plate, 14, control panel, 15, driving Motor, 16, nesting box, 17, acoustooptic alarm, the 18, second sieve, 19, collecting cart, the 20, first discharge port, the 21, first backgauge Plate, the 22, second discharge port, 23, infrared distance sensor, 24, marker board, 25, spring, 26, third sieve, the 27, second backgauge Plate.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the present invention provides a kind of technical solution:A kind of automatic filings discharging device of numerically-controlled machine tool, including machine Shell 1, water filling layer 2, plate chain 3, material bin 4, suction ventilator 5, nozzle 6, the first sieve 7, baffle 8, the first catch box 9, pipeline 10, row Liquid mouth 11, the second catch box 12, fixed plate 13, control panel 14, driving motor 15, nesting box 16, acoustooptic alarm 17, second Sieve 18, collecting cart 19, the first discharge port 20, the first striker plate 21, the second discharge port 22, infrared distance sensor 23, discharge Plate 24, spring 25, third sieve 26 and the second striker plate 27 are provided with water filling layer 2, and the inside of casing 1 on the inner wall of casing 1 Plate chain 3 is installed, the left side upper end of casing 1 is connected with material bin 4, and casing 1 is connected with material bin 4, the left end of material bin 4 Suction ventilator 5 is installed, the right end of suction ventilator 5 is connected with nozzle 6, and nozzle 6 is arranged in the inside of material bin 4, and the appearance of nozzle 6 The first sieve 7 is provided on face, the inside of material bin 4 is equipped with baffle 8, and the left end of material bin 4 is mounted with the first catch box 9, the setting angle of baffle 8 is 30 °, and inclined direction is 9 side of the first catch box, when marker board 24 is not affected by pressure and baffle 8 groups into a single integrated structure, pipeline 10 is connected between the first catch box 9 and material bin 4, and set on the outer surface of the first catch box 9 It is equipped with leakage fluid dram 11, the second catch box 12 is arranged in the bottom end of casing 1, and the right end of casing 1 is connected with nesting box 16, nesting box 16 On fixed plate 13 is installed, and the upper end of nesting box 16 is equipped with acoustooptic alarm 17, and the upper end of fixed plate 13 is mounted with driving Motor 15, and control panel 14 is installed on the outer surface of fixed plate 13, the inside of nesting box 16 is equipped with the second sieve 18, and The lower end of nesting box 16 is mounted with collecting cart 19, and the right end of nesting box 16 is connected with the first discharge port 20, and the first discharge port 20 Be internally provided with striker plate 21, the setting angle of the second sieve 18 is 30 °, and inclined direction is 20 side of the first discharge port, Second discharge port 22 is arranged in the bottom of nesting box 16, and the lower-left end of the second discharge port 22 is equipped with infrared distance sensor 23, to be electrically connected between infrared distance sensor 23 and acoustooptic alarm 17, control panel 14, infrared distance sensor 23 is set There are two setting, a lower end for being mounted on the first discharge port 20, one sets on the lower end of the second discharge port 22, baffle 8 It is equipped with marker board 24, and the left end of baffle 8 is provided with third sieve 26, the sieve pore of the first sieve 7 is less than the sieve of the second sieve 18 Hole, and the sieve pore of the first sieve 7 is identical as the slot size of third sieve 26, is connected between third sieve 26 and pipeline 11, Spring 25 is connected between marker board 24 and material bin 4, the upper end of the second discharge port 22 is provided with the second striker plate 27, first gear The extraction direction of flitch 21 is vertical, and the extraction direction of the second striker plate 27 is level.
Operation principle:Before the automatic filings discharging device using the numerically-controlled machine tool, need to carry out the structure of whole device Simple to understand, chip is drawn by suction ventilator 5 in material bin 4, and chip and cuttings liquid are under the action of baffle 8, to the One catch box, 9 direction is moved, and liquid flows into the first catch box 9 by third sieve 26, and chip is then blocked in third sieve 26 Outside, chip at this time is deposited on marker board 24, and when chip is stacked into constant weight, the spring 25 of 24 lower end of marker board is pressed Power moves downward, and chip at this time is entered by the gap between marker board 24 and baffle 8 on plate chain 3, and the second catch box 12 is right It is recycled again into the cuttings liquid on plate chain 3, chip is transported by plate chain 3 inside nesting box 16, and chip is in nesting box 16 inside is screened, and smaller chip is fallen to from the second discharge port 22 on collecting cart 19 by the second sieve 18, larger Chip fallen by the first discharge port 20, by 14 setpoint distance of control panel, when the chip accumulation in collecting cart 19 is higher When, collecting cart 19 is closer at a distance from discharge port, and when reaching setpoint distance, acoustooptic alarm 17 sounds, and reminds staff more Change collecting cart 19.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (7)

1. a kind of automatic filings discharging device of numerically-controlled machine tool, including casing(1), the second catch box(12)With the second discharge port(22), It is characterized in that:The casing(1)Inner wall on be provided with water filling layer(2), and casing(1)Inside plate chain is installed(3), institute State casing(1)Left side upper end be connected with material bin(4), and casing(1)With material bin(4)It is connected, the material bin(4)'s Left end is equipped with suction ventilator(5), the suction ventilator(5)Right end be connected with nozzle(6), the nozzle(6)It is arranged in material bin (4)Inside, and nozzle(6)Outer surface on be provided with the first sieve(7), the material bin(4)Inside baffle is installed (8), and material bin(4)Left end be mounted with the first catch box(9), first catch box(9)With material bin(4)Between connect There is pipeline(10), and the first catch box(9)Outer surface on be provided with leakage fluid dram(11), second catch box(12)Setting exists Casing(1)Bottom end, the casing(1)Right end be connected with nesting box(16), the nesting box(16)On fixed plate is installed (13), and nesting box(16)Upper end acoustooptic alarm is installed(17), the fixed plate(13)Upper end be mounted with driving electricity Machine(15), and fixed plate(13)Outer surface on control panel is installed(14), the nesting box(16)Inside be equipped with Two sieves(18), and nesting box(16)Lower end be mounted with collecting cart(19), the nesting box(16)Right end be connected with first Discharge port(20), and the first discharge port(20)Be internally provided with striker plate(21), second discharge port(22)Setting is being arranged Hopper(16)Bottom, and the second discharge port(22)Lower-left end infrared distance sensor is installed(23), the baffle(8)On It is provided with marker board(24), and baffle(8)Left end be provided with third sieve(26), the marker board(24)With material bin(4) Between be connected with spring(25), second discharge port(22)Upper end be provided with the second striker plate(27).
2. a kind of automatic filings discharging device of numerically-controlled machine tool according to claim 1, it is characterised in that:The baffle(8)'s Setting angle is 30 °, and inclined direction is the first catch box(9)Side, the marker board(24)When being not affected by pressure and baffle (8)Group is into a single integrated structure.
3. a kind of automatic filings discharging device of numerically-controlled machine tool according to claim 1, it is characterised in that:The third sieve (26)With pipeline(11)Between be connected.
4. a kind of automatic filings discharging device of numerically-controlled machine tool according to claim 1, it is characterised in that:The infrared distance measurement passes Sensor(23)With acoustooptic alarm(17), control panel(14)Between for be electrically connected, the infrared distance sensor(23)If There are two setting, one is mounted on the first discharge port(20)Lower end, one be mounted on the second discharge port(22)Lower end.
5. a kind of automatic filings discharging device of numerically-controlled machine tool according to claim 1, it is characterised in that:Second sieve (18)Setting angle be 30 °, and inclined direction be the first discharge port(20)Side.
6. a kind of automatic filings discharging device of numerically-controlled machine tool according to claim 1, it is characterised in that:First striker plate (21)Extraction direction be vertical, second striker plate(27)Extraction direction be level.
7. a kind of automatic filings discharging device of numerically-controlled machine tool according to claim 1, it is characterised in that:First sieve (7)Sieve pore be less than the second sieve(18)Sieve pore, and the first sieve(7)Sieve pore and third sieve(26)Slot size phase Together.
CN201711469747.1A 2017-12-29 2017-12-29 A kind of automatic filings discharging device of numerically-controlled machine tool Withdrawn CN108296862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711469747.1A CN108296862A (en) 2017-12-29 2017-12-29 A kind of automatic filings discharging device of numerically-controlled machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711469747.1A CN108296862A (en) 2017-12-29 2017-12-29 A kind of automatic filings discharging device of numerically-controlled machine tool

Publications (1)

Publication Number Publication Date
CN108296862A true CN108296862A (en) 2018-07-20

Family

ID=62868068

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711469747.1A Withdrawn CN108296862A (en) 2017-12-29 2017-12-29 A kind of automatic filings discharging device of numerically-controlled machine tool

Country Status (1)

Country Link
CN (1) CN108296862A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111300139A (en) * 2020-03-16 2020-06-19 万向钱潮传动轴有限公司 Automatic recovery unit of lathe cutting fluid
CN112959219A (en) * 2021-01-28 2021-06-15 杨红兵 Automatic numerical control lathe of clearance
EP3888845A1 (en) * 2020-03-30 2021-10-06 Tecnimetal International S.r.L. Separator device for separating processing scraps of machine tools in ejection systems and system for ejecting equipped with said separator device
CN113618096A (en) * 2021-08-16 2021-11-09 米克精机(嘉兴)有限公司 Chip removal device for vertical lathe
WO2024189674A1 (en) * 2023-03-10 2024-09-19 Dmg森精機株式会社 Chip conveyor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111300139A (en) * 2020-03-16 2020-06-19 万向钱潮传动轴有限公司 Automatic recovery unit of lathe cutting fluid
EP3888845A1 (en) * 2020-03-30 2021-10-06 Tecnimetal International S.r.L. Separator device for separating processing scraps of machine tools in ejection systems and system for ejecting equipped with said separator device
CN112959219A (en) * 2021-01-28 2021-06-15 杨红兵 Automatic numerical control lathe of clearance
CN112959219B (en) * 2021-01-28 2022-05-31 广东创能精密机械有限公司 Automatic numerical control lathe of clearance
CN113618096A (en) * 2021-08-16 2021-11-09 米克精机(嘉兴)有限公司 Chip removal device for vertical lathe
WO2024189674A1 (en) * 2023-03-10 2024-09-19 Dmg森精機株式会社 Chip conveyor

Similar Documents

Publication Publication Date Title
CN108296862A (en) A kind of automatic filings discharging device of numerically-controlled machine tool
CN205520715U (en) Automatic chip removal device of numerical control machine tool
CN206405439U (en) Combination machining lathe
CN109648389B (en) A piece recovery system for lathe cutting
CN111589543A (en) Safety protection type production lathe convenient to waste recovery and environmental protection
CN210703865U (en) Chip removal device of numerical control machine tool
CN211760170U (en) Milling machine convenient to it is clean
CN217044740U (en) Environment-friendly plastic milling machine
CN210756361U (en) Cutting and grinding machining center equipment with gantry driving mechanism
CN106693489B (en) Cutting fluid filtering recovering device
CN211361578U (en) Chip removal device of gantry machining center
CN210524600U (en) Numerical control machine tool of vertical machining center
CN211516659U (en) Gear blank polishing and drilling production line
CN219131663U (en) Numerical control machine tool convenient for chip removal
CN218799411U (en) Gantry-structured double-tool-magazine high-speed machine tool
CN218518237U (en) Vertical machining center machine convenient to sweeps discharges and collects
CN208801104U (en) A kind of milling machine
CN211890026U (en) Milling machine processing device capable of preventing scraps from splashing
CN211193111U (en) Milling machine
CN204382423U (en) A kind of horizontal multi-spindle wood borer
CN209647109U (en) A kind of recyclable surge cleaning device
CN212217743U (en) Vertical numerical control drilling and tapping machining center
CN209954316U (en) Cooling liquid recovery device for numerically controlled lathe
CN219044018U (en) Material platform for stone numerical control cutting machine
CN206732691U (en) A kind of new Machining Centre water tank

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: 20180720

WW01 Invention patent application withdrawn after publication