CN102337535A - Cladding device for pickax-shaped cutting pick surface - Google Patents
Cladding device for pickax-shaped cutting pick surface Download PDFInfo
- Publication number
- CN102337535A CN102337535A CN2011102806998A CN201110280699A CN102337535A CN 102337535 A CN102337535 A CN 102337535A CN 2011102806998 A CN2011102806998 A CN 2011102806998A CN 201110280699 A CN201110280699 A CN 201110280699A CN 102337535 A CN102337535 A CN 102337535A
- Authority
- CN
- China
- Prior art keywords
- pick
- cladding
- slide way
- slideway
- claw
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a cladding device for a pickax-shaped cutting pick surface used on a coal winning machine drum. The technical scheme of the invention is as follows: the cladding device comprises a machine foundation as well as a circular driving plate and a slide chuck device which are connected with a step motor in the machine foundation; a plurality of semicircular notches are uniformly arranged on the circumferential edge of the driving plate, a semicircular slide way is arranged at the outside of the circumferential edge of the driving plate, the inlet end of the slide way is connected with a material conveying slide way, and the outlet end of the slide way is connected with a discharging slide way; the material conveying slide way and the discharging slide way are inclined for an angle relative to the horizontal plane; the slide chuck device is arranged on the lower surface of the middle segment of an annular slide way, and a plasma generator nozzle is installed at the outer side of the upper surface of the middle segment of the annular slide way; the slide chuck device is capable of sliding vertically along a slide way shaft connected with the step motor and rotating with the slide way shaft and is used for clamping or loosening cutting picks to be clad through a chuck. The cladding device is used for realizing the continuous cladding processing of pickax-shaped cutting picks by program control and has the advantages of convenience for operation and high working efficiency.
Description
Technical field
The invention belongs to workpiece surface treatment facility technical field, be specifically related to the pick-like bit surface cladding device that uses on a kind of coal mining machine roller.
Background technology
Pick is the vital part that directly cuts coal petrography on the drum shearer, also is consumable accessory, is made up of denticle and crown.In the pick working process; Coal petrography reacts on surging force, the frictional force that pick-like bit produces and is mainly partly born by crown, and therefore, general crown all is to adopt hard alloy head to be embedded on the denticle; To improve shock resistance, the abrasion resistance properties of pick, prolong the work-ing life of pick.But because the denticle material is general structural alloy steel; Wear resisting property is poor than wimet, is especially inlaying the joint portion with hard alloy head, wearing and tearing very easily occur; Cause hard alloy head to come off and whole pick is scrapped, this is the one of the main reasons of pick infringement.In order to improve the wear resistance of pick-like bit denticle mosaic site; Method commonly used is to carry out surface hardening at its corresponding site to handle, and like plasma, laser melting coating high-abrasive material etc., especially the plasma melting coating technique does not need vacuum system with its equipment; Workpiece does not need any pre-treatment; Technological process is simple, and equipment cost is low, and characteristics such as technological easy realization of industrialization obtain a large amount of the use.
Plasma, laser melting and coating technique are to utilize plasma arc or laser; Make by cladding area field surface instant melting and form the molten bath; Simultaneously; The synchronous powder feeding system mechanism of cladding equipment sends the cemented carbide powder of preparation into the molten bath, fuses into one with the alloy structure material of denticle, and surface cladding forms the metal-base composites top layer of high firmness.
Because cladding process all needs moment high temperature and alloying reaction, can produce the environmental factors that high temperature, high light, smog etc. are unfavorable for operator ' s health, and present pick-like bit cladding process; Be will treat the cladding pick by artificial clamping on the anchor clamps of may command rotation, open cladding equipment and the rotation of control anchor clamps, set the cladding processing on surface; Completion of processing is shut down, and takes off cladding pick; Refill the folder next one and treat the cladding pick, continue cladding processing.Therefore, the cladding working (machining) efficiency is low, and it is healthy to have a strong impact on operator.
Summary of the invention
The objective of the invention is to the above-mentioned defective of existing in prior technology, provide a kind of simple in structure, easy to operate, the cladding working (machining) efficiency high, realize the pick-like bit surface cladding device of processing continuously.
The present invention realizes above-mentioned purpose through following technical scheme: this pick-like bit surface cladding device is mainly used in the plasma cladding that the pick-like bit crown that uses on the coal mining machine roller is inlayed the surface, joint portion; It comprises support, and two step-by-step motors are installed in support, and a step-by-step motor is connected with a circular driver chuck through the barring gear that is installed on the frame surface, and another step-by-step motor is connected with card jaw arrangement on being installed on frame surface; The circumferential edges of said driver chuck is provided with some equally distributed, semicircle gap slots that its diameter is close with pick mounting portion diameter; Outside the circumferential edge of driver chuck, be provided with the semi-round ring shape slideway of, its a radius ratio driver chuck radius big gap slot radius concentric with driver chuck; The inlet end of this annular slide track is connected with the feeding slideway; Its exit end is connected with the discharging slideway; Said feeding slideway and discharging slideway and horizontal plane certain angle that tilts slightly, its angle of inclination are satisfied with pick and are relied on the gravity of himself to go into and skid off annular slide track from slippery; Said card jaw arrangement be installed on the annular slide track stage casing below; The top outside in annular slide track stage casing is equipped with a plasma generator nozzle; The card jaw arrangement can the edge slides up and down and rotates with the slideway axle with the slideway axle of step-by-step motor shaft extension client link, clamps or unclamps and treat the cladding pick through its upper end claw; Said all parts all are installed in the enclosed space that can open.
More particularly, said card jaw arrangement comprises a sliding sleeve, and sliding sleeve is set on the said slideway axle that has sliding keyway through slide key; Sliding sleeve is installed on the inner ring of a radial thrust bearing through the stopping nut that is screwed in its underpart, and slip ring then is installed on the outer ring of this radial thrust bearing through the pressing plate that is screwed in by screw below it, and the symmetrical both sides of slip ring are fixed with the vertical axis of guide respectively; Said sliding sleeve upper end is fixed with master jaw, and the symmetry both sides, top of master jaw are connected with a pair of claw through bearing pin; Said claw is the member of a lightness sensation in the upper and heaviness in the lower; Two relative faces of claw upper inner are provided with projection; Two claw medial surfaces on the projection are inclined-planes; Form a bell-mouthed shape to outside, upper end opening thus, the claw lower inside surface also is the inclined-plane, forms the bell-mouthed shape that a upward opening tightens up to the bottom surface thus; The upper end of said slideway axle is the structure of a back taper, its lower end and step-by-step motor shaft extension client link; The said axis of guide that is connected with the slip ring both sides is inserted in the orienting sleeve in the mount pad on the frame surface, and the outside side of slip ring is fixed with an electro-magnet, and electro-magnet is controlled the card jaw arrangement through the break-make of electric current and slided up and down along slideway axle and orienting sleeve.
Said barring gear comprises a chock that is installed on the frame surface; A bottom radial bearing of installation and a thrust block of installing in a radial bearing, the chock through the top in the chock come supports main shaft; The main shaft upper end is driver chuck fixedly, the output shaft coupling of main shaft lower end and step-by-step motor.
Pick-like bit surface cladding device of the present invention; After adopting manual work will treat that the cladding pick-like bit is placed in the feeding slideway in batches; Start cladding equipment, dial is transferred to successively from the feeding slideway and is treated the cladding pick under the driving of step-by-step motor; And cooperate with annular slide track, with its sliding cladding position that pushes.Orienting sleeve rises the slip ring of card jaw arrangement in the effect lower edge of electro-magnet; Drive risings such as sliding sleeve, claw through radial thrust bearing; Claw upwards holds up the upper surface that pick leaves dial and annular slide track through its projection that is provided with; And under the effect of slideway axle, hold the pick bottom tightly, start the driving step-by-step motor and the plasma generator of card jaw arrangement then simultaneously, by the rotation and the isoionic cladding of time variable control pick.After cladding finishes; The driving step-by-step motor of plasma generator and card jaw arrangement quits work, and electro-magnet pulling card jaw arrangement is descending, and claw unclamps cladding pick; The cladding pick drops to the upper surface of dial and annular slide track; Dial rotates, and the cladding pick pushes the output of discharging slideway, and dial has treated that with the next one cladding pick has pushed the cladding position simultaneously; Realize treating dial-out successively, automated exchanged cutter, program control cladding, the order output of cladding pick thus, reach the purpose of the continuous cladding processing of pick-like bit.
The present invention realizes the continuous cladding processing of pick-like bit through time variable control; Easy to operate; Working efficiency is greatly improved; And all equipment is installed in the space of a sealing, has avoided adding the infringement of unfavorable factors such as the high temperature that produces man-hour, high light, smog to the staff.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the barring gear sectional view among Fig. 1.
Fig. 4 is the structural representation of the card jaw arrangement among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail.
Referring to Fig. 1, Fig. 2; Present embodiment comprises support 1, and two step-by-step motors 2 are installed in support 1, and is visible by Fig. 1; This step-by-step motor 2 of the left side is connected with circular driver chuck 5 through the barring gear 3 that is installed on support 1 table top, and step-by-step motor 2 drives driver chuck 5 according to programmed instruction and rotates.Visible by Fig. 2; The circumferential edges of driver chuck 5 is provided with eight equally distributed, its diameters and the big slightly semicircle gap slot of pick 7 mounting portion diameters; Outside the circumferential edge of driver chuck 5, be provided with semi-round ring shape slideway 85 concentric with driver chuck, the big gap slot radius of its radius ratio driver chuck 5 radiuses; The inlet end of annular slide track 8 is connected with feeding slideway 6, and its exit end is connected with discharging slideway 4.Feeding slideway 6 and discharging slideway 4 and horizontal plane certain angle that tilts slightly, its angle of inclination are satisfied with pick 7 and are relied on the gravity of himself to go into and skid off annular slide track 8 from slippery.The groove width of feeding slideway 6 and discharging slideway 4 is identical with pick mounting portion diameter or big slightly.Treat that the cladding pick is placed in (batch weight is directly proportional with feeding slideway 6 length) on the feeding slideway 6 in batches by manual work, transfer to the reservation position that gets into annular slide track 8 to carry out cladding processing successively through its semicircle gap slot by dial 5; Discharging slideway 4 is that cladding pick is transported to the specified location discharging from slipping.Visible by Fig. 1, this step-by-step motor 2 of the right is connected with card jaw arrangement 10 on being installed on support 1 table top in the support 1.Card jaw arrangement 10 be installed on annular slide track 8 stage casings below, plasma generator nozzle 9 is installed in the top outside in annular slide track 8 stage casings.But above-mentioned all devices are installed in the enclosed space of a switch and move.Wherein, plasma generator and nozzle 9 independent installation thereof, miscellaneous part all directly or indirectly is installed on the support 1, and with the plasma generator control that links, realize the continuous cladding processing of pick.
Referring to Fig. 4, be the structural representation of the card jaw arrangement 10 of present embodiment.Card jaw arrangement 10 is automated exchanged cutter devices of pick 7, and visible by Fig. 4, card jaw arrangement 10 comprises sliding sleeve 101, and sliding sleeve 101 is set on the slideway axle 109 that has sliding keyway through slide key.Sliding sleeve 101 is installed on the inner ring of radial thrust bearing 105 through the stopping nut 102 that is screwed in its underpart, and 104 on slip ring is installed on the outer ring of radial thrust bearing 105 through the pressing plate 103 that is screwed in by screw below it.The upper end of sliding sleeve 101 is fixed with master jaw 1010, and the symmetry both sides, top of master jaw 1010 are connected with a pair of claw 107 through bearing pin 108, and therefore, claw 107 can freely rotate around bearing pin 108.Claw 107 is members of a lightness sensation in the upper and heaviness in the lower; The relative face of the upper inner of two claws 107 is provided with projection 1012; Two claw medial surfaces on the projection 1012 are inclined-planes; Form a bell-mouthed shape to outside, upper end opening thus, claw 107 lower inside surface also are the inclined-planes, form the bell-mouthed shape that a upward opening tightens up to the bottom surface thus.Visible by Fig. 4, the upper end of slideway axle 109 is structures of a back taper, and the output shaft of its lower end and step-by-step motor 2 is affixed, and with its rotation (but axially can not move).The symmetrical both sides of slip ring 104 are fixed with the vertical axis of guide 1011 respectively; Visible by Fig. 1; The axis of guide 1011 is inserted in the orienting sleeve 11 in the mount pad on support 1 table top; The outside right side of slip ring 104 electro-magnet 12 that is connected, electro-magnet 12 is controlled card jaw arrangement 10 through the break-make of electric current and is slided up and down along the sliding keyway of slideway axle 109.Because claw 107 can freely rotate, and bottom weight is big than top, when not applying control; Claw 107 is releasing orientation, and the effect of claw 107 upper inner projections 1012 is card jaw arrangement 10 rising initial stages under electro-magnet 12 effects, when the reverse taper portion of slideway axle 109 does not contact the inclined-plane of claw 107 lower inside as yet; Projection 1012 has contacted the bottom of pick-like bit 7 and it has upwards been held up; Make pick 7 break away from the upper surface of dial 5 and annular slide track 8, card jaw arrangement 10 continues to rise then, and the inboard inclined-plane of claw 107 bottoms contacts with the back taper face of slideway axle 109 and is open; Claw 107 rotates; Its upper inner inclined-plane is pressed to the bottom of pick 7 and is held tightly, and pick 7 has at this moment climbed away the upper surface of dial and annular slide track, can rotate with claw 107 and carry out cladding processing.After the cladding process finishing; Electro-magnet 12 pulling card jaw arrangements 10 are descending; Throw off on the inclined-plane of the reverse taper portion of slideway axle 109 and claw lower inside, and to the centre swing, claw 107 upper inclined surface are thrown off pick 7 bottoms and descending under the self gravitation effect in claw 107 bottoms; Pick 7 falls to resting again on the upper surface of dial and annular slide track in the lump, thereby has accomplished the cladding processing of a pick.
Referring to Fig. 3, be the barring gear sectional view of present embodiment.Visible by Fig. 3; Barring gear 3 comprises the chock 31 that is installed on the frame surface; A bottom radial bearing 33 of installation and a thrust block 34 of installing in a radial bearing 33, the chock 31 through the top in the chock 31 come supports main shaft 32; Main shaft 32 upper ends are driver chuck 5 fixedly, the output shaft coupling of main shaft 32 lower ends and step-by-step motor 2.
The cladding apparatus of the embodiment of the invention and plasma generator and nozzle 9 are installed in the enclosed space to be opened/closed, have completely cut off the pollution of high light, high temperature and smog, and all devices all adopts concentrated time variable control, automatically pick-like bit 7 are carried out cladding processing continuously.
The working process of pick-like bit surface cladding device of the present invention is following:
At first, the employing manual type will start cladding equipment after will treating that cladding pick-like bit 7 is placed in feeding slideway 6 in batches; Dial 5 is under the driving of step-by-step motor 2; From feeding slideway 6, transfer to successively and treat cladding pick 7, and cooperate, with its sliding cladding position that pushes with annular slide track 8.Orienting sleeve 11 rises the slip ring 104 of card jaw arrangement 10 in the effect lower edge of electro-magnet 12; Drive risings such as sliding sleeve 101, claw 107 through radial thrust bearing 105; Claw 107 upwards holds up the upper surface that pick 7 leaves dial 5 and annular slide track 8; And under the effect of slideway axle 109, hold pick 7 bottoms tightly, start the driving step-by-step motor 2 and the plasma generator of card jaw arrangement 10 then simultaneously, by the rotation and the isoionic cladding of time variable control pick 7.After cladding finishes; The driving step-by-step motor 2 of plasma generator and card jaw arrangement 10 quits work, and electro-magnet 12 pulling card jaw arrangements 10 are descending, and claw 107 unclamps cladding pick 7; Cladding pick 7 drops to the upper surface of dial 5 and annular slide track 8; Dial 5 rotates, and cladding pick 7 pushes 4 outputs of discharging slideway, and dial 5 has treated that with the next one cladding pick 7 has pushed the cladding position simultaneously; Realize treating dial-out successively, automated exchanged cutter, program control cladding, the order output of cladding pick 7 thus, reach the purpose of pick-like bit 7 continuous cladding processing.
Claims (3)
1. pick-like bit surface cladding device; Be mainly used in the pick-like bit crown that uses on the coal mining machine roller and inlay the plasma cladding on surface, joint portion; It is characterized in that: it comprises support; Two step-by-step motors are installed in support, and a step-by-step motor is connected with a circular driver chuck through the barring gear that is installed on the frame surface, and another step-by-step motor is connected with card jaw arrangement on being installed on frame surface; The circumferential edges of said driver chuck is provided with some equally distributed, semicircle gap slots that its diameter is close with pick mounting portion diameter; Outside the circumferential edge of driver chuck, be provided with the semi-round ring shape slideway of, its a radius ratio driver chuck radius big gap slot radius concentric with driver chuck; The inlet end of this annular slide track is connected with the feeding slideway; Its exit end is connected with the discharging slideway; Said feeding slideway and discharging slideway and horizontal plane certain angle that tilts slightly, its angle of inclination are satisfied with pick and are relied on the gravity of himself to go into and skid off annular slide track from slippery; Said card jaw arrangement be installed on the annular slide track stage casing below; The top outside in annular slide track stage casing is equipped with a plasma generator nozzle; The card jaw arrangement can the edge slides up and down and rotates with the slideway axle with the slideway axle of step-by-step motor shaft extension client link, clamps or unclamps and treat the cladding pick through its upper end claw; Said all parts all are installed in the enclosed space that can open.
2. pick-like bit surface cladding device according to claim 1 is characterized in that: said card jaw arrangement comprises a sliding sleeve, and sliding sleeve is set on the said slideway axle that has sliding keyway through slide key; Sliding sleeve is installed on the inner ring of a radial thrust bearing through the stopping nut that is screwed in its underpart, and slip ring then is installed on the outer ring of this radial thrust bearing through the pressing plate that is screwed in by screw below it, and the symmetrical both sides of slip ring are fixed with the vertical axis of guide respectively; Said sliding sleeve upper end is fixed with master jaw, and the symmetry both sides, top of master jaw are connected with a pair of claw through bearing pin; Said claw is the member of a lightness sensation in the upper and heaviness in the lower; Two relative faces of claw upper inner are provided with projection; Two claw medial surfaces on the projection are inclined-planes; Form a bell-mouthed shape to outside, upper end opening thus, the claw lower inside surface also is the inclined-plane, forms the bell-mouthed shape that a upward opening tightens up to the bottom surface thus; The upper end of said slideway axle is the structure of a back taper, its lower end and step-by-step motor shaft extension client link; The said axis of guide that is connected with the slip ring both sides is inserted in the orienting sleeve in the mount pad on the frame surface, and the outside side of slip ring is fixed with an electro-magnet, and electro-magnet is controlled the card jaw arrangement through the break-make of electric current and slided up and down along slideway axle and orienting sleeve.
3. pick-like bit surface cladding device according to claim 1 and 2; It is characterized in that: said barring gear comprises a chock that is installed on the frame surface; A bottom radial bearing of installation and a thrust block of installing in a radial bearing, the chock through the top in the chock come supports main shaft; The main shaft upper end is driver chuck fixedly, the output shaft coupling of main shaft lower end and step-by-step motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110280699 CN102337535B (en) | 2011-09-21 | 2011-09-21 | Cladding device for pickax-shaped cutting pick surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110280699 CN102337535B (en) | 2011-09-21 | 2011-09-21 | Cladding device for pickax-shaped cutting pick surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102337535A true CN102337535A (en) | 2012-02-01 |
| CN102337535B CN102337535B (en) | 2013-03-27 |
Family
ID=45513477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110280699 Expired - Fee Related CN102337535B (en) | 2011-09-21 | 2011-09-21 | Cladding device for pickax-shaped cutting pick surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102337535B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021151A (en) * | 2006-10-10 | 2007-08-22 | 山东科技大学 | Wearproof point attack bit and processing method thereof |
| CN201058890Y (en) * | 2007-07-13 | 2008-05-14 | 熊林勇 | Bore work-piece inductive melt coating device |
| CN101649455A (en) * | 2009-08-25 | 2010-02-17 | 陈中强 | Tool for continuously cladding and processing small shaft workpieces by laser broadband |
| CN202214418U (en) * | 2011-09-21 | 2012-05-09 | 湖南科技大学 | Pickaxe-shaped cutting tooth surface cladding device |
-
2011
- 2011-09-21 CN CN 201110280699 patent/CN102337535B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101021151A (en) * | 2006-10-10 | 2007-08-22 | 山东科技大学 | Wearproof point attack bit and processing method thereof |
| CN201058890Y (en) * | 2007-07-13 | 2008-05-14 | 熊林勇 | Bore work-piece inductive melt coating device |
| CN101649455A (en) * | 2009-08-25 | 2010-02-17 | 陈中强 | Tool for continuously cladding and processing small shaft workpieces by laser broadband |
| CN202214418U (en) * | 2011-09-21 | 2012-05-09 | 湖南科技大学 | Pickaxe-shaped cutting tooth surface cladding device |
Non-Patent Citations (1)
| Title |
|---|
| 张智等: "激光熔覆修复齿轮轴工艺研究", 《电加工与模具》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102337535B (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202214418U (en) | Pickaxe-shaped cutting tooth surface cladding device | |
| CN101489714B (en) | Method for regenerating a drill pipe | |
| CN108406402A (en) | A kind of lifting board pulley mechanism of material conveying platform | |
| CN104354070A (en) | Power assembly with rotating and translation functions | |
| CN102337535B (en) | Cladding device for pickax-shaped cutting pick surface | |
| CN205129565U (en) | Cable insulation shielding layer processingequipment | |
| CN104607780A (en) | Abrasion resisting treatment process for chute of scraper conveyer | |
| CN107009214A (en) | A kind of automatic chamfering machine | |
| CN205734193U (en) | The synchro-meshing spiral wheel grinding device that automatic tool compensates | |
| CN203973335U (en) | A kind of Generator Slip Ring on-line grinding device | |
| CN110053093A (en) | A kind of insole punch | |
| CN214642516U (en) | Numerical control vertical grinding machine for machining high-alloy centrifugal composite casting wear-resistant roller sleeve | |
| CN208133317U (en) | A kind of device using the sawing machine processing graphite connector conical surface | |
| CN207071995U (en) | A kind of new log process equipment | |
| CN209503135U (en) | Impeller Machining equipment | |
| CN104084863A (en) | Generator slip ring online grinding device | |
| CN113211265A (en) | Numerical control vertical grinding machine for machining high-alloy centrifugal composite casting wear-resistant roller sleeve | |
| CN202780750U (en) | Edge grinding machine | |
| CN201685152U (en) | Grinding tool for repairing large plane after laser cladding | |
| CN206869579U (en) | A kind of automatic chamfering machine | |
| CN216883432U (en) | Protection device for abrasive blasting treatment of saw blade | |
| CN109226836A (en) | A kind of novel curved hole drill bit and processing method | |
| CN112030585A (en) | Auxiliary machining device for steel wire rope | |
| CN108407101A (en) | A kind of device using the sawing machine processing graphite connector conical surface | |
| CN208262554U (en) | The inner circle burnishing device converted by upright drill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20160921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |