CN205869074U - Device is changed to wide heavy plate mill roller piece - Google Patents
Device is changed to wide heavy plate mill roller piece Download PDFInfo
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- CN205869074U CN205869074U CN201620867668.0U CN201620867668U CN205869074U CN 205869074 U CN205869074 U CN 205869074U CN 201620867668 U CN201620867668 U CN 201620867668U CN 205869074 U CN205869074 U CN 205869074U
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- Prior art keywords
- dolly
- function
- actively
- jack
- trolley body
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Abstract
The utility model provides a device is changed to wide heavy plate mill roller piece, includes the little driving license of the initiative body and the walking wheel of horizontal upper surface including initiative dolly and function dolly, initiative dolly, the initiative dolly passes through drive along the interior rail -engaging of mill housing window of working roll dolly, the upper surface of initiative dolly is located to the function dolly, includes the little driving license of the function body, the function wheel of horizontal upper surface and sets up in 4 at least jack of the little driving license of function body upper surface, the walking direction of function dolly is perpendicular with the walking direction of initiative dolly, and 4 at least jack surround the area less than or equal to roller piece bottom surface area of formation, when the jack was in original compression state, the perpendicular distance of track upper surface was lighter than the perpendicular distance of track upper surface in roller piece bottom surface to the mill housing window in its top to the mill housing window. The utility model discloses a higher installation accuracy can be guaranteed moreover to high -efficient, the online change alone safely of rolling mill roller piece, has effectively guaranteed the steady operation that rolls line equipment.
Description
Technical field
This utility model relates to a kind of wide and heavy plate mill roller block changing device, belongs to milling equipment technical field.
Background technology
Although Wide and Thick Slab rolling line rolling power is far from each other with rolled plate kind, but the basic class of milling equipment structure
Seemingly.The milling train frame for movement majority of current national large-scale Wide and Thick Slab rolling line is designed by SMS, makes, supervises and organize installation,
Device structure is essentially identical.Milling train external equipment is changed all to be had supporting specific purpose tool and changes more convenient, but special pin
Replacing to mill housing window inside roller bending block does not has design specialized equipment.Roller bending block belongs to the large-scale key of wide and heavy plate mill and sets
Standby, inside mill housing window, on fore side (OS) and transmission side (DS) memorial archway face, each installation two set rollers are packaged respectively
Put.Roller bending block is by hydraulic efficiency servo-valve control, and inside is born maximum pressure and reached about 25MPa, and action is very frequent, averagely rolls
Making a steel plate needs 13-15 passage, roller bending block plunger to need action 13-15 time therewith, and during steel plate rolling
Roller bending block roller function puts into, and the realization of roller function needs roller bending block to bear the pressure of at least more than 20MPa, for rolling rule
Lattice are higher and template requires strict steel plate, the roller function of roller bending block it is critical that, therefore the replacing of roller bending block is safeguarded
It is one of the most important work of plant maintenance personnel.
Once bending roller block of rolling mill device fails or need periodic replacement will bring very burden to maintainer,
Changing roller bending block lifting extremely complex, and hanging device is difficult to hang, the preparation in addition changing roller bending block is a lot, than
If desired for extracting backing roll etc. out.Current replacing roller bending block is not only changed precision and is difficult to ensure that, it is often more important that replacing construction can be very
Length and Renewal process ratio are relatively hazardous, the serious stable operation restricting rolling line equipment.Therefore, design one is specifically designed for Wide and Thick Slab and rolls
The more changing device of machine roller bending block just seems extremely urgent.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of wide and heavy plate mill roller block changing device, it is possible to high
Imitate, realize safely the most online replacing of bending roller block of rolling mill, and can guarantee that higher installation accuracy.
The technical scheme solving above-mentioned technical problem is:
A kind of wide and heavy plate mill roller block changing device, including actively dolly and function dolly, actively dolly includes table
Face is the active trolley body of horizontal plane and is installed on the road wheel bottom active trolley body, actively dolly and working roll dolly
Connect, walked along mill housing window inner orbit by the driving of working roll dolly；The upper table of actively dolly is located at by function dolly
Face, including the function trolley body that upper surface is horizontal plane, is installed on the functional wheel bottom function trolley body and is arranged at
At least 4 jack of function trolley body upper surface；The direction of travel of function dolly is vertical with the direction of travel of actively dolly,
At least 4 jack surround the area of formation less than or equal to roller bending block base area；When jack is in original compression state,
Its top is less than roller bending block bottom surface to mill housing window inner orbit to the vertical dimension of mill housing window inner orbit upper surface
The vertical dimension of upper surface.
Above-mentioned a kind of wide and heavy plate mill roller block changing device, described active dolly also includes being fixed on active dolly originally
The guide plate that 2 pieces of body upper surface are vertical with actively carriage walking direction, guide plate length is identical with actively vehicle-width, function
Dolly is between 2 pieces of guide plates；Described function dolly also include being fixed on function dolly upper surface and with function carriage walking
The rectangular slab that direction is vertical, function dolly upper surface is divided into two pieces of regions by rectangular slab, arranges 4 lines of centres in every piece of region
Rectangular jack, 4 jack surround area less than or equal to roller bending block base area；Offer 4 on rectangular slab and run through square
The vertical bar hole of shape plate thickness, the width of vertical bar hole and the spacing of adjacent vertical bar hole and roller bending block slide plate screw
The spacing of diameter and adjacent skillet screw matches, real by penetrating the connecting bolt of vertical bar hole and roller bending block slide plate screw
Existing roller bending block is connected with the fixing of function dolly.
Above-mentioned a kind of wide and heavy plate mill roller block changing device, the road wheel of described active dolly is 4, along the least
Car body width direction be mounted opposite two-by-two in active trolley body bottom；Described functional wheel is 4, along function dolly originally
Body width is mounted opposite two-by-two bottom function trolley body, the distance between 2 functional wheels positioned opposite and master
Vertical dimension between dynamic 2 pieces of guide plates of dolly upper surface matches.
Above-mentioned a kind of wide and heavy plate mill roller block changing device, described guide plate near with active trolley body upper surface
The guide plate pin-and-hole of through guide plate thickness is had on the plate body of fixing side；Described function trolley body side has and guide plate
The function dolly pin-and-hole that pin-and-hole matches, alignment pin inserts guide plate pin-and-hole and function dolly pin-and-hole realizes actively dolly and function
The location of dolly.
Above-mentioned a kind of wide and heavy plate mill roller block changing device, described active dolly is little with working roll by traction apparatus
Car connects, and traction apparatus includes connecting plate and connects locating piece, relative two limits of connecting plate respectively with active dolly and being connected
Locating piece is fixed, and connects locating piece top and has the U-shaped hanging groove extended to bottom, and the A/F of U-shaped hanging groove is less than U-shaped hanging groove
Slot bottom width, the shape of U-shaped hanging groove and size match with eave tile shape and the size of working roll dolly, and U-shaped hanging groove is away from even
The medial surface of fishplate bar and vertical angle are 25 °～30 °；Connection locating piece is vertical plane away from the outer face of connecting plate.
Above-mentioned a kind of wide and heavy plate mill roller block changing device, described active trolley body bottom surface upwards surface direction is opened
Having the groove of through active dolly length, the width of groove is more than the diameter of lower support roll, and groove bottom land is higher than lower backing roll
Upper surface.
Using method of the present utility model is: snapped in by working roll dolly eave tile in the U-shaped hanging groove of traction apparatus, it is achieved main
The connection of dynamic dolly and working roll dolly, due to eave tile shape and the size of the shape of U-shaped hanging groove and size and working roll dolly
Matching, U-shaped hanging groove is 25 °～30 ° away from medial surface and the vertical angle of connecting plate, can effectively ensure that actively dolly will not
Depart from working roll dolly；Actively dolly sails mill housing into along mill housing window inner orbit under the driving of working roll dolly
Window, visually after function dolly aligns along rolling direction with roller bending block, actively dolly halts, along guide plate direction to curved
Roller block installation site promotes function dolly, makes to be fixed at 4 jack of rectangular slab one side region of function dolly upper surface
In the underface of roller bending block, by between roller bending block and mill housing close disassembling bolts, lifting jack, visual 4 very heavy
Push up slight for roller bending block jack-up concordant with stopping table and after having minim gap, fine-adjustment jack, actively dolly and function dolly,
Make the vertical bar hole on rectangular slab align with roller bending block slide plate screw, 4 connecting bolts are screwed in 4 bar shapeds on rectangular slab
Hole and roller bending block slide plate screw, it is achieved the connection location of roller bending block and function dolly, then use jack by function dolly together with
Roller bending block is together drawn out to mill housing window centre position, lowers jack and makes the roller bending block vertical bar hole along rectangular slab
Steadily place after decline, the little truck position of regulatory function, make the function dolly pin-and-hole of function dolly side and leading of guide plate bottom
Align to plate pin-and-hole, function dolly pin-and-hole and guide plate pin-and-hole are installed alignment pin, by function dolly and actively dolly location
To together, now start working roll dolly and roller bending block pulled out mill housing window, use overhead traveling crane more to renew roller bending block, according to
The operational approach contrary operation that above-mentioned steps is contrary recovers machine on new roller bending block.
Function dolly upper surface is divided into 2 regions, each region by the rectangular slab of this utility model function dolly upper surface
Middle arranging 4 rectangular jack of the line of centres, 4 jack in one of them region are used for lifting outlet side roller bending block,
4 jack in another block region are used for lifting entrance side roller bending block；Actively the groove of dolly bottom is effectively ensured the least
Car moves smoothly along mill housing inner orbit, will not interfere collision with lower support roll roll surface；Traction apparatus connects locating piece
U-shaped hanging groove be 25 °～30 ° away from medial surface and the vertical angle of connecting plate, purpose is: when active dolly needs reversing to adjust
During whole position, make working roll dolly eave tile inner face (clinoplain) with the U-shaped hanging groove being connected locating piece away from connecting plate
Side realizes face contact, facilitates self-locking and force；When active dolly needs to advance and adjusts position, make outside working roll dolly eave tile
End face contacts with the outer face connecting locating piece, convenient force.
The beneficial effects of the utility model are:
This utility model utilizes existing working roll dolly, mill housing window inner orbit and roller bending block slide plate screw, logical
Cross actively dolly, function dolly and the cooperation of jack, it is achieved that bending roller block of rolling mill is efficiently and safely the most more
Change, and can guarantee that higher installation accuracy, the stable operation of rolling line equipment has been effectively ensured.
Accompanying drawing explanation
Fig. 1 is that this utility model assembles schematic diagram；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is active dolly schematic diagram；
Fig. 4 is the top view of Fig. 3；
Fig. 5 is function dolly schematic diagram；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is rectangular slab schematic diagram；
Fig. 8 is traction apparatus schematic diagram；
Fig. 9 is the top view of Fig. 8；
Figure 10 is roller bending block schematic diagram；
Figure is labeled as: actively trolley body 1, road wheel 2, mill housing window inner orbit 3, function trolley body 4, merit
Can wheel 5, jack 6, roller bending block 7, guide plate 8, rectangular slab 9, vertical bar hole 10, roller bending block slide plate screw 11, connection spiral shell
Bolt 12, alignment pin 13, connecting plate 14, connection locating piece 15, U-shaped hanging groove 16, groove 17, guide plate pin-and-hole 18, function dolly pin
Hole 19.
Detailed description of the invention
Fig. 1～Figure 10 is the schematic diagram of one embodiment of this utility model.
Fig. 1～Fig. 2 shows, this utility model one wide and heavy plate mill roller block changing device includes actively dolly and function
Dolly.
Fig. 1～Fig. 4, Fig. 8～Fig. 9 show, actively dolly includes active trolley body 1, the installation that upper surface is horizontal plane
4 road wheels bottom active trolley body 1 and 2 pieces and active carriage walking being fixed on actively trolley body 1 upper surface
8,4 road wheels of the vertical guide plate in direction along actively trolley body 1 widths be mounted opposite two-by-two in active dolly this
The bottom of body 1；The length of guide plate 8 is identical with actively vehicle-width, one piece of guide plate 8 near with table in active trolley body 1
The guide plate pin-and-hole 18 having through guide plate 8 thickness on the plate body of side is fixed in face, is used for installing alignment pin 13；Actively dolly leads to
Cross traction apparatus to be connected with existing working roll dolly, by the driving of working roll dolly rail along existing mill housing window
Walk in road 3；Traction apparatus includes connecting plate 14 and connects locating piece 15, relative two limits of connecting plate 14 respectively with active dolly
Fixing with connecting locating piece 15, the top connecting locating piece 15 has the U-shaped hanging groove 16 extended to bottom, opening of U-shaped hanging groove 16
Mouth width is less than the width of U-shaped hanging groove 16 bottom land, the shape of U-shaped hanging groove 16 and size and the eave tile shape of working roll dolly and chi
Very little matching, purpose is closely connected for convenience of working roll dolly eave tile and U-shaped hanging groove 16；U-shaped hanging groove 16 is away from connection
The medial surface of plate 14 and vertical angle are 25 °～30 °, take off with working roll dolly eave tile during preventing active carriage walking
From；Connection locating piece 15, away from being vertical plane with the fixing outer face of connecting plate 14, makes working roll dolly when push operation
Realize working roll dolly eave tile outer face and the close contact being connected locating piece 15 outer face, facilitate the transmission of motive force；Actively
The bottom surface of trolley body 1 upwards surface direction has the groove 17 of through active dolly length, and the width of groove 17 is more than lower
Runner diameter, the bottom land of groove 17 is higher than the upper surface of lower backing roll；The purpose offering groove 17 is along milling train at active dolly
Collision will not be interfered with lower support roll roll surface when memorial archway inner orbit 3 is walked.
Fig. 1～Fig. 2, Fig. 5～Fig. 7, Figure 10 show, function dolly be located at actively dolly upper surface two pieces of guide plates 8 it
Between, with the direction walking perpendicular with active carriage walking direction between two pieces of guide plates 8；Function dolly includes that upper surface is
The function trolley body 4 of horizontal plane, it is installed on 4 functional wheels 5 bottom function trolley body 4 and is fixed on function dolly
Surface and rectangular slab 9,4 functional wheels 5 vertical with function carriage walking direction are along the width two of function trolley body 4
Two bottoms being relatively installed on function trolley body 4, on the distance between 2 functional wheels 5 positioned opposite and actively dolly
Vertical dimension between the guide plate 8 of 2 pieces of surface matches, purpose be assurance function dolly between two pieces of guide plates 8 with straight line
Mode is moved, and will not glance off；Function dolly upper surface is divided into two pieces of regions by rectangular slab 9, arranges in 4 in every piece of region
The jack 6 that heart line is rectangular, 4 jack 6 in one of them region are used for lifting outlet side roller bending block, another block region
In 4 jack be used for lifting entrance side roller bending block；4 jack 6 in each region surround the area of row and are less than
In the base area of roller bending block 7, purpose is for ensureing that each jack 6 can be when dismounting, installation roller bending block 7 to roller bending block 7
Bottom surface uniformly exerts a force；When jack 6 is in original compression state, its top is to mill housing window inner orbit 3 upper surface
Vertical dimension is less than the vertical dimension of roller bending block 7 bottom surface to mill housing window inner orbit 3 upper surface, it is ensured that jack 6 can
The mobile underface to roller bending block 7；4 vertical bar holes 10 running through rectangular slab 9 thickness, vertical bar shaped is offered on rectangular slab 9
Spacing between width and the adjacent vertical bar hole 10 in hole 10 is sliding with the diameter of roller bending block slide plate screw 11 and adjacent roller bending block
Spacing between plate screw 11 matches, real by penetrating the connecting bolt 12 of vertical bar hole 10 and roller bending block slide plate screw 11
Existing roller bending block 7 is connected with the fixing of function dolly；Function trolley body 4 is near the side of the guide plate 8 having guide plate pin-and-hole 18
The function dolly pin-and-hole 19 that face has with actively dolly guide plate pin-and-hole 18 matches, alignment pin 13 inserts guide plate pin-and-hole 18 He
Function dolly pin-and-hole 19 realizes actively dolly and the location of function dolly.
Using method of the present utility model is: existing working roll dolly eave tile snaps in the U-shaped hanging groove 16 of traction apparatus
In, it is achieved actively dolly and the connection of working roll dolly；Actively dolly under the driving of working roll dolly along mill housing window
Inner orbit 3 sails mill housing window into, and visually after function dolly aligns along rolling direction with roller bending block 7, actively dolly stops
Advancing, the direction along guide plate 8 promotes function dolly to the installation site of roller bending block 7, makes to be fixed on function dolly upper surface
4 jack 6 of rectangular slab 9 one side region are in the underface of roller bending block 7, by the conjunction between roller bending block 7 and mill housing
Disassembling bolts, lifting jack 6, visual 4 jack 6 are by slight for roller bending block 7 jack-up the most concordant with stopping table and have small
After gap, fine-adjustment jack 6, actively dolly and function dolly, make the vertical bar hole 10 on rectangular slab 9 and roller bending block slide plate screw
11 alignment, 4 vertical bar holes 10 that 4 connecting bolts 12 are screwed on rectangular slab 9 and roller bending block slide plate screw 11, it is achieved curved
Roller block 7 and the connection location of function dolly, then use jack that together with roller bending block 7, function dolly is together drawn out to mill housing
Window centre position, steadily places after lowering vertical bar shaped screw 10 decline that jack 6 makes roller bending block 7 along rectangular slab 9, adjusts
The joint little truck position of function, makes the function dolly pin-and-hole 19 of function dolly side align with the guide plate pin-and-hole 18 of guide plate bottom,
In function dolly pin-and-hole 19 and guide plate pin-and-hole 18 install alignment pin 13, function dolly is navigated to active dolly together with,
Now start working roll dolly and roller bending block 7 is pulled out mill housing window, use overhead traveling crane more to renew roller bending block 7, according to above-mentioned
The operational approach contrary operation that step is contrary recovers the upper machine of new roller bending block 7.
Claims (6)
1. a wide and heavy plate mill roller block changing device, it is characterised in that: it includes actively dolly and function dolly, the least
Car includes active trolley body (1) that upper surface is horizontal plane and is installed on the road wheel (2) of actively trolley body (1) bottom,
Actively dolly is connected with working roll dolly, is walked along mill housing window inner orbit (3) by the driving of working roll dolly；Function
The upper surface of actively dolly is located at by dolly, including function trolley body (4) that upper surface is horizontal plane, is installed on function dolly originally
The functional wheel (5) of body (4) bottom and be arranged at least 4 jack (6) of function trolley body (4) upper surface；Function is little
The direction of travel of car is vertical with the direction of travel of actively dolly, and at least 4 jack (6) surround the area of formation less than or equal to curved
The base area of roller block (7)；When jack (6) is in original compression state, its top to mill housing window inner orbit (3)
The vertical dimension of upper surface is less than the bottom surface vertical dimension to mill housing window inner orbit (3) upper surface of roller bending block (7).
2. a kind of wide and heavy plate mill roller block changing device as claimed in claim 1, it is characterised in that: described active dolly is also
Including being fixed on 2 pieces of guide plates (8) vertical with active carriage walking direction of actively trolley body (1) upper surface, guide plate
(8) length is identical with the width of actively dolly, and function dolly is positioned between 2 pieces of guide plates (8)；Described function dolly also includes
Being fixed on function dolly upper surface and the rectangular slab (9) vertical with function carriage walking direction, rectangular slab (9) is by function dolly
Surface is divided into two pieces of regions, arranges 4 the rectangular jack of lines of centres (6) in every piece of region, and 4 jack (6) are surrounded
Area is less than or equal to the base area of roller bending block (7)；4 vertical bar shapeds running through rectangular slab (9) thickness are offered on rectangular slab (9)
Hole (10), the width of vertical bar hole (10) and the spacing of adjacent vertical bar hole (10) are straight with roller bending block slide plate screw (11)
The spacing of footpath and adjacent roller bending block slide plate screw (11) matches, by penetrating vertical bar hole (10) and roller bending block slide plate screw
(11) connecting bolt (12) realizes roller bending block (7) and is connected with the fixing of function dolly.
3. a kind of wide and heavy plate mill roller block changing device as claimed in claim 2, it is characterised in that: described active dolly
Road wheel (2) is 4, the width along actively trolley body (1) be mounted opposite two-by-two in the end of active trolley body (1)
Portion；Described functional wheel (5) is 4, and the width along function trolley body (4) is mounted opposite two-by-two in function trolley body
(4) bottom, between distance and the active 2 pieces of guide plates (8) of dolly upper surface between 2 functional wheels positioned opposite (5)
Vertical dimension match.
4. a kind of wide and heavy plate mill roller block changing device, it is characterised in that: described guide plate
(8) near fixing the guide plate pin-and-hole having through guide plate (8) thickness on the plate body of side with active trolley body (1) upper surface
(18)；The side of described function trolley body (4) has function dolly pin-and-hole (19) matched with guide plate pin-and-hole (18), fixed
The location of guide plate pin-and-hole (18) and function dolly pin-and-hole (19) realization actively dolly and function dolly is inserted in position pin (13).
5. a kind of wide and heavy plate mill roller block changing device as claimed in claim 1, it is characterised in that: described active dolly leads to
Crossing traction apparatus to be connected with working roll dolly, traction apparatus includes connecting plate (14) and connects locating piece (15), connecting plate (14)
Two relative limits respectively with active dolly and to be connected locating piece (15) fixing, the top of connection locating piece (15) has to bottom
The U-shaped hanging groove (16) extended, the A/F of U-shaped hanging groove (16) is less than the width of U-shaped hanging groove (16) bottom land, U-shaped hanging groove (16)
Shape and eave tile shape and the size of size and working roll dolly match, U-shaped hanging groove (16) is interior away from connecting plate (14)
Side and vertical angle are 25 °～30 °；It is vertical flat for connecting locating piece (15) away from the outer face fixing with connecting plate (14)
Face.
6. a kind of wide and heavy plate mill roller block changing device as claimed in claim 1, it is characterised in that: described active dolly is originally
The bottom surface upwards surface direction of body (1) has the groove (17) of through active dolly length, and the width of groove (17) is more than lower
Runner diameter, the bottom land of groove (17) is higher than the upper surface of lower backing roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620867668.0U CN205869074U (en) | 2016-08-11 | 2016-08-11 | Device is changed to wide heavy plate mill roller piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620867668.0U CN205869074U (en) | 2016-08-11 | 2016-08-11 | Device is changed to wide heavy plate mill roller piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205869074U true CN205869074U (en) | 2017-01-11 |
Family
ID=57703860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620867668.0U Expired - Fee Related CN205869074U (en) | 2016-08-11 | 2016-08-11 | Device is changed to wide heavy plate mill roller piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205869074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111704A (en) * | 2016-08-11 | 2016-11-16 | 河北钢铁股份有限公司邯郸分公司 | A kind of wide and heavy plate mill roller block changing device |
| CN106914493A (en) * | 2017-04-05 | 2017-07-04 | 邯钢集团邯宝钢铁有限公司 | A kind of Bowed roll block fast replacing device for rolling mill |
-
2016
- 2016-08-11 CN CN201620867668.0U patent/CN205869074U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106111704A (en) * | 2016-08-11 | 2016-11-16 | 河北钢铁股份有限公司邯郸分公司 | A kind of wide and heavy plate mill roller block changing device |
| CN106914493A (en) * | 2017-04-05 | 2017-07-04 | 邯钢集团邯宝钢铁有限公司 | A kind of Bowed roll block fast replacing device for rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 232, Fuxing Road, Fuxing District, Handan, Hebei Province Patentee after: River steel Limited by Share Ltd Handan branch Address before: 056015 Fuxing Road 232, Hebei, Handan Patentee before: Handan Branch Company of Hebei Iron and Steel Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20190811 |