CN205855488U - A kind of fixed mechanism of dry compound machine feeding roller - Google Patents
A kind of fixed mechanism of dry compound machine feeding roller Download PDFInfo
- Publication number
- CN205855488U CN205855488U CN201620720810.9U CN201620720810U CN205855488U CN 205855488 U CN205855488 U CN 205855488U CN 201620720810 U CN201620720810 U CN 201620720810U CN 205855488 U CN205855488 U CN 205855488U
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- CN
- China
- Prior art keywords
- fixed
- feeding roller
- connecting shaft
- groove
- fitting
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- 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.)
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Abstract
The utility model discloses the fixed mechanism of a kind of dry compound machine feeding roller, the shortcoming aiming to solve the problem that the inconvenience of existing dry compound machine feeding roller installing/dismounting, its drip irrigation device is: the fixed mechanism of a kind of dry compound machine feeding roller, including frame, feeding roller and rotating shaft, the end of rotating shaft is rotatably connected to connecting shaft, and frame is provided with circumferentially fixed assembly and axial restraint assembly；Circumferentially fixed assembly includes the fixed station being fixed in frame, caulking groove, hinge clip, fixing groove and the fixture being simultaneously threaded on clip and fixed station；Axial restraint assembly includes supporting table, sliding seat, fitting and elapses assembly for elapsing the first of the slip of described fitting；First passage assembly includes the first abutting groove, first pushes against part and the first securing member, and first pushes against part when embedding in the first abutting groove, and described fitting is conflicted in the end of connecting shaft.It is more convenient that the fixed mechanism feeding roller of dry compound machine feeding roller of the present utility model removes and installs.
Description
Technical field
This utility model relates to compounding machine technical field, more specifically, it relates to a kind of dry compound machine feeding roller
Fixed mechanism.
Background technology
Dry compound machine is to be sticked together different plastic sheetings by dry-lamination process to form the machine of laminated film
Device.Owing to carrying out compound tense, the speed that feeding roller uses on the plastic sheeting of coiling, it is therefore desirable to often change and send
Material roller provides compound required plastic sheeting.Its feeding roller installing/dismounting of existing dry compound machine more bothers, and makes feeding
Roller changes inconvenience.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of dry compound machine feeding roller
Fixed mechanism, has feeding roller and removes and installs more convenient advantage.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of dry compound machine send
The fixed mechanism of material roller, including frame and feeding roller, the two ends of described feeding roller are provided with rotating shaft, and the end of described rotating shaft rotates even
Being connected to connecting shaft, described frame is provided with circumferentially fixed assembly and axial restraint assembly；Described circumferentially fixed assembly includes fixing
Fixed station in frame, the caulking groove being opened on fixed station, the clip being hinged on fixed station, be opened on clip fixing
Groove and be simultaneously threaded in the fixture on clip and fixed station, described caulking groove and fixing groove are conflicted at the table of connecting shaft
Face；Described axial restraint assembly includes the supporting table being fixed on described fixed station, the sliding seat being fixed on supporting table, sliding
It is connected to the fitting on described sliding seat and for elapsing the first passage assembly that described fitting slides；Described first
Passage assembly includes that the be opened on fitting first abutting groove, sliding are connected on sliding seat and abut groove tabling with first
First push against part and be threaded on sliding seat and push against the first securing member that the end face of part is inconsistent, institute with first
State the first abutting groove side towards connecting shaft side and be obliquely installed and be formed with the first abutment platform towards connecting shaft, described
One pushes against part conflicts and is connected in the first abutment platform, and when described first push against part embed in the first abutting groove time, described support
Fitting is conflicted in the end of connecting shaft.
By using technique scheme, owing to connecting shaft is connected with axis of rotation, when connecting shaft is fixed, rotating shaft is still
Can rotate, and drive feeding roller to rotate during rotating, thus realize the function of feeding；When feeding roller is installed, first will
Connecting shaft is erected in the caulking groove on fixed station, and the surface fixing groove and connecting shaft when rotating clip subsequently fits, and then twists
Fastening locking member, fixture is threaded on fixed station, and is pressed in connecting shaft by clip, so that connecting shaft and fixed station
It is relatively fixed；Tightening the first securing member subsequently, the first securing member is i.e. conflicted and first is pushed against the downward sliding of part, owing to first pushes against part
Conflict in the first abutment platform, push against, first, fitting of i.e. conflicting during part glides and move closer to connecting shaft, until
Conflicting in the end of connecting shaft, so that connecting shaft is axially opposing fixing, i.e. the circumferential and axial of connecting shaft are fixed on the most relatively
In frame, fixation procedure is installed simple and convenient；During dismounting, fixture and the first securing member are unscrewed.
This utility model is further arranged to: described first fastener end is provided with connecting rod, and described connecting rod rotates even
It is connected on described first to push against on part.
By using technique scheme, during installation and removal, connecting rod with push against part and be in all the time and be connected
State, pushing against part can move up and down along with the rotation of securing member, thus it is more quick to mount and dismount process.
This utility model is further arranged to: described first end pushing against part is that circular arc is arranged.
By using technique scheme, push against part and be easier to along abutment platform sliding, thus be easier to promote fitting,
Make axial restraint process more quick.
This utility model is further arranged to: the side that described first abutting groove deviates from the first abutment platform is provided with described
First abuts the sliding tray that groove communicates.
By using technique scheme, push against part and embed and abut groove when being pushed against in connecting shaft by fitting, push against part
Will not being completely adjacent to the sidewall abutting groove, being more readily pulled from abutting groove so that pushing against part.
This utility model is further arranged to: be provided with the second passage assembly on described fitting in the axial direction, and described
Two passage assemblies include that the be opened on described fitting second abutting groove, sliding are connected on sliding seat and abut groove with second
The second of tabling pushes against part and is threaded on sliding seat and pushes against, with second, the second fastening that the end face of part is inconsistent
Part, described second abuts the groove side towards connecting shaft side is obliquely installed towards connecting shaft and is formed with the second abutment platform,
And when described first push against part be completely embedded into the first abutting groove time, described second push against part conflict in the second abutment platform.
By using technique scheme, during making in connecting shaft, the length of connecting shaft has certain
Error, when first push against part be completely embedded in the first abutting groove time, when connecting shaft still cannot be made axially to be completely fixed, by tightening
Second securing member, can continue to make to push against part sliding forward, so that connecting shaft axially positions.
This utility model is further arranged to: be fixed with elastic component on described fitting, and one end of described elastic component is fixed
On fitting and the other end is fixed on sliding seat, and when described fitting is conflicted in connecting shaft, at described elastic component
In compressive state.
By using technique scheme, when dismounting, unclamping the first securing member and the second securing member, fitting is i.e. at bullet
Being pushed rearward shifting under the effect of property part elastic force, make fitting be disconnected axle, unloading process is more convenient.
This utility model is further arranged to: offers locating slot in described connecting shaft, is provided with and positions in described caulking groove
The positioning convex that groove matches.
By using technique scheme, when connecting shaft is erected in caulking groove, positioning convex embeds in locating slot, thus real
Show the quick location of connecting shaft, time in positioning convex embeds locating slot, also there is certain axial limiting effect simultaneously.
This utility model is further arranged to: described locating slot is that prismatic is arranged, and is formed with rib in described connecting shaft
The locating dowel of column, described positioning convex is conflicted at the lower surface of locating dowel.
By using technique scheme, positioning convex is conflicted when locating dowel, and locating slot circumferentially rotates shape to connecting shaft
Become to limit, make connecting shaft be difficult in caulking groove and rotate.
This utility model is further arranged to: the both sides being positioned at fixing groove on described clip are provided with flexible sheets.
By using technique scheme, flexible sheets can reduce the rigid contact between fixed station and clip, the most soft
Property sheet there is certain elastic force, make clip depart from fixed station be more prone to, so that unloading process is convenient.
This utility model is further arranged to: the end of described connecting shaft is provided with the connection prism arranged in prismatic, described
Fitting is provided with and is connected the rib hole that prism matches.
By use technique scheme, rib hole can limit connection prism rotate, thus further increase right
The circumferentially fixed ability of connecting shaft.
In sum, this utility model has the advantages that
One, by arranging axial restraint assembly, circumferentially fixed assembly and the first passage assembly, makes feeding roller installing/dismounting
Process is more efficient and convenient；
Its two, the second passage assembly is set, decreases the production error due to connecting shaft, make the axial positioning component cannot be right
Connecting shaft carries out the situation of axial restraint and occurs；
Its three, the most fixing with the use of, it is achieved that connecting shaft of locating slot and positioning convex, there is restriction simultaneously even
The effect that spindle circumferentially rotates and moves axially.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is the A portion enlarged drawing of Fig. 1；
After Fig. 3 is for removing clip and fixture, circumferentially fixed assembly and the partial view of circumferentially fixed assembly, it is used for showing
Locating slot and locating dowel；
After Fig. 4 is for removing clip and fixture, the partial sectional view of fixed station, it is used for showing positioning convex；
Fig. 5 be along fitting axis partial sectional view for display first passage assembly and second passage assembly.
In figure: 1, frame；2, feeding roller；21, rotating shaft；22, connecting shaft；221, locating slot；222, locating dowel；223, connect
Prism；3, circumferentially fixed assembly；31, fixed station；32, caulking groove；321, positioning convex；33, clip；331, flexible sheets；34, fixing
Groove；35, fixture；4, axial restraint assembly；41, supporting table；42, sliding seat；43, fitting；431, rib hole；44, first push away
Move assembly；441, first groove is abutted；4411, the first abutment platform；4412, sliding tray；442, first part is pushed against；443, first is tight
Firmware；4431, connecting rod；45, the second passage assembly；451, second groove is abutted；4511, the second abutment platform；452, second support
Tight part；453, the second securing member；5, elastic component.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is described in detail.
The fixed mechanism of a kind of dry compound machine feeding roller, as it is shown in figure 1, be provided with feeding roller 2, feeding roller 2 in frame 1
Two ends be provided with rotating shaft 21, the end of rotating shaft 21 is rotatably connected to connecting shaft 22, and rotating shaft 21 and connecting shaft 22 are positioned at same axle
Line, is fixed with bearing in the end of rotating shaft 21, and connecting shaft 22 i.e. realizes the rotation of connecting shaft 22 and rotating shaft 21 in being socketed in bearing
Connect；Frame 1 is provided with circumferentially fixed assembly 3 and axial restraint assembly 3, for limiting the fortune of the circumferential and axial of connecting shaft 22
Dynamic.
As shown in Figures 2 to 4, circumferentially fixed assembly 3 includes the fixed station 31 being fixed in frame 1, is opened in fixed station
Caulking groove 32 on 31, the clip 33 being hinged on fixed station 31, the fixing groove 34 being opened on clip 33 and simultaneously screw thread is even
Being connected on the fixture 35 on clip 33 and fixed station 31, upward, fixing groove 34 is curved sets for the curved setting of caulking groove 32 and nock
Put and nock down, and when fixture 35 is tightened, the inwall of caulking groove 32 and fixing groove 34 is all conflicted on the surface of connecting shaft 22,
Fixture 35 uses screw；
Offering locating slot 221 in connecting shaft 22, locating slot 221 is arranged in prismatic, and is formed in connecting shaft 22
Locating dowel 222 in prism-shaped, is fixed with positioning convex 321 in caulking groove 32, positioning convex 321 match with locating slot 221 and
Upper surface is parallel to horizontal plane and conflicts at the lower surface of locating dowel 222；
For the rigid contact between reducing on clip 33 and fixed station 31, make clip 33 be more readily pulled from fixed station simultaneously
31, the both sides that clip 33 is positioned at fixing groove 34 are bonded with flexible sheets 331, and flexible sheets 331 can be made up of rubber；
It is fixed with connection prism 223 in the end of connecting shaft 22, connects prism 223 and arrange in prismatic, set on block abutting
Having and be connected the rib hole 431 that prism 223 matches, rib hole 431 can limit connection prism 223 and rotate, thus further
Improve the circumferentially fixed ability to connecting shaft 22.
As shown in Figure 2 and Figure 5, axial restraint assembly 4 includes the supporting table 41 being fixed on fixed station 31, is fixed on support
Sliding seat 42 on platform 41, sliding are connected to the fitting 43 on described sliding seat 42 and slide for elapsing fitting 43
The first passage assembly 44 and the second passage assembly 45；
First passage assembly 44 includes that the be opened on fitting 43 first abutting groove 441, sliding are connected to sliding seat 42
Go up and abut the first of groove 441 tabling with first and push against part 442 and be threaded on sliding seat 42 and push against with first
The first securing member 443 that the end face of part 442 is inconsistent, first abuts the groove 441 side towards connecting shaft 22 side towards connection
Axle 22 is obliquely installed and is formed with the first abutment platform 4411, and the end of the first fitting 43 is that circular arc is arranged, and first supports
Tight part 442 is conflicted and is connected in the first abutment platform 4411；
Second passage rent assembly is distributed along the axis direction of fitting 43, and is located remotely from the side of connecting shaft 22, and second
Passage assembly 45 includes that the be opened on fitting 43 second abutting groove 451, sliding are connected to support on sliding seat 42 and with second
The second of access slot 451 tabling push against part 452 and be threaded on sliding seat 42 and with the second end face pushing against part 452
The second inconsistent securing member 453, described second abutting groove 451 tilts towards the side of connecting shaft 22 side towards connecting shaft 22
Arranging and be formed with the second abutment platform 4511, second pushes against the curved setting in end of part 452, and when described first pushes against part
442 when being completely embedded into the first abutting groove 441, and second pushes against part 452 conflicts in the second abutment platform 4511；
First abuts in groove 441 and deviates from the side of the first abutment platform 4411 and be provided with and abut, with first, the cunning that groove 441 communicates
Dynamic groove 4412, when first pushes against in part 442 is completely embedded into the first abutting groove 441 and still cannot conflict in the end of connecting shaft 22,
Fitting 43 still can be along sliding tray 4412 forward slip, so that the second passage assembly 45 can realize elapsing function, generally
In the case of, tighten the first securing member 443 and connecting shaft 22 can be fixed；
Being fixed with connecting rod 4431 at the first securing member 443, connecting rod 4431 is rotatably connected on first and pushes against on part 442,
Pushing against first and offer annular notch on part 442, the end of connecting rod 4431 is fixed with the convex annular matched with notch
Rising, it is achieved thereby that being rotationally connected of connecting rod 4431 and the first securing member 443, the end of the second securing member 453 is provided with identical
Structure；
The dismounting of feeding roller 2 for convenience, is further fixed on elastic component 5 pushing against on part, one end of elastic component 5 be fixed on to
On fitting 43 and the other end is fixed on sliding seat 42, and when fitting 43 is conflicted in connecting shaft 22, elastic component 5 is in pressure
Contracting state, the generally bottom at fitting 43 fix a fixed plate, and elastic component 5 is fixed in fixed plate, facilitates the shape of elastic component 5
Become and force.
As shown in Figures 1 to 5, owing to connecting shaft 22 is rotationally connected with rotating shaft 21, when connecting shaft 22 is fixed, rotating shaft 21 depends on
So can rotate, and drive feeding roller 2 to rotate during rotating, thus realize the function of feeding；
When feeding roller 2 is installed, first connecting shaft 22 is erected in the caulking groove 32 on fixed station 31, when rotating clip 33 subsequently
Fixing groove 34 fits with the surface of connecting shaft 22, then tightens fixture 35, and fixture 35 is threaded on fixed station 31,
And be pressed in connecting shaft 22 by clip 33, so that connecting shaft 22 is relatively fixed with fixed station 31；Tighten the first fastening subsequently
Part 443, the first securing member 443 i.e. conflicts and first pushes against the downward sliding of part 442, owing to first pushes against part 442 and conflict and support first
Connect on platform 4411, push against, first, fitting 43 of i.e. conflicting during part 442 glides and move closer to connecting shaft 22, until supporting
Touching the end in connecting shaft 22, so that connecting shaft 22 is axially opposing fixing, i.e. the circumferential and axial of connecting shaft 22 are the most solid
It is scheduled in frame 1, if the first securing member 443 is tightened rear fitting 43 and do not pushed against connecting shaft 22 yet, has continued to tighten the second fastening
Part 453, until fitting 43 is pushed against in connecting shaft 22, installs fixation procedure simple and convenient；
During dismounting, fixture the 35, first securing member 443 and the second securing member 453 are unscrewed, clip 33 are turned to side,
Simultaneously fitting 43 under the effect of elastic component 5 elastic force backward sliding be disconnected the end of axle 22, feeding roller 2 can be taken
Go out to change.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under this utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, without departing from the some improvement under this utility model principle premise and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (10)
1. the fixed mechanism of a dry compound machine feeding roller, it is characterised in that: include frame (1) and feeding roller (2), described in give
The two ends of material roller (2) are provided with rotating shaft (21), it is characterised in that: the end of described rotating shaft (21) is rotatably connected to connecting shaft (22),
Described frame (1) is provided with circumferentially fixed assembly (3) and axial restraint assembly (4)；Described circumferentially fixed assembly (3) includes fixing
Fixed station (31) in frame (1), the caulking groove (32) being opened on fixed station (31), the clip that is hinged on fixed station (31)
(33) the fixing groove (34) that, is opened on clip (33) and be simultaneously threaded in consolidating on clip (33) and fixed station (31)
Locking member (35), described caulking groove (32) and fixing groove (34) are conflicted on the surface of connecting shaft (22)；Described axial restraint assembly (4) is wrapped
The sliding seat (42), the sliding that include the supporting table (41) being fixed on described fixed station (31), are fixed on supporting table (41) connect
Fitting (43) on described sliding seat (42) and be used for elapsing the first passage assembly that described fitting (43) slides
(44)；It is sliding that described first passage assembly (44) includes that the be opened on fitting (43) first abutting groove (441), sliding are connected to
Move on seat (42) and abut the first of groove (441) tabling with first and push against part (442) and be threaded in sliding seat (42)
Upper and push against, with first, the first securing member (443) that the end face of part (442) is inconsistent, described first abuts groove (441) towards even
The side of spindle (22) side is obliquely installed and is formed with the first abutment platform (4411) towards connecting shaft (22), and described first supports
Tight part (442) is conflicted and is connected in the first abutment platform (4411), and when described first pushes against part (442) embedding the first abutting groove
(441), time interior, described fitting (43) is conflicted in the end of connecting shaft (22).
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 1, it is characterised in that: described first tight
Firmware (443) end is provided with connecting rod (4431), and described connecting rod (4431) is rotatably connected on described first and pushes against part (442)
On.
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 1, it is characterised in that: described first supports
The end of tight part (442) is that circular arc is arranged.
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 3, it is characterised in that: described first supports
Access slot (441) deviates from the side of the first abutment platform (4411) and is provided with and abuts, with described first, the sliding tray that groove (441) communicates
(4412)。
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 4, it is characterised in that: described fitting
(43) being provided with the second passage assembly (45) in the axial direction, described second passage assembly (45) includes being opened in described fitting
(43) the second abutting groove (451) on, sliding are connected to sliding seat (42) and above and abut the second of groove (451) tabling with second
Push against part (452) and to be threaded in sliding seat (42) upper and push against inconsistent second tight of the end face of part (452) with second
Firmware (453), described second abutting groove (451) is obliquely installed also towards the side of connecting shaft (22) side towards connecting shaft (22)
Be formed with the second abutment platform (4511), and when described first push against part (442) be completely embedded into the first abutting groove (441) time, institute
State second and push against part (452) conflict in the second abutment platform (4511).
6. according to the fixed mechanism of a kind of dry compound machine feeding roller described in claim 2 or 5, it is characterised in that: described support
Being fixed with elastic component (5) on fitting (43), one end of described elastic component (5) is fixed on fitting (43), and above and the other end is fixed on
On sliding seat (42), and when described fitting (43) is conflicted when connecting shaft (22) is upper, and described elastic component (5) is in compression shape
State.
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 1, it is characterised in that: described connecting shaft
(22) offer locating slot (221) on, in described caulking groove (32), be provided with the positioning convex (321) matched with locating slot (221).
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 7, it is characterised in that: described locating slot
(221) arrange in prismatic, and in described connecting shaft (22), be formed with the locating dowel (222) of prism-shaped, described positioning convex
(321) conflict lower surface in locating dowel (222).
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 1, it is characterised in that: described clip
(33) both sides being positioned at fixing groove (34) on are provided with flexible sheets (331).
The fixed mechanism of a kind of dry compound machine feeding roller the most according to claim 1, it is characterised in that: described connection
The end of axle (22) is provided with the connection prism (223) arranged in prismatic, and described fitting (43) is provided with and is connected prism (223)
The rib hole (431) matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720810.9U CN205855488U (en) | 2016-07-08 | 2016-07-08 | A kind of fixed mechanism of dry compound machine feeding roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620720810.9U CN205855488U (en) | 2016-07-08 | 2016-07-08 | A kind of fixed mechanism of dry compound machine feeding roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205855488U true CN205855488U (en) | 2017-01-04 |
Family
ID=57647713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620720810.9U Expired - Fee Related CN205855488U (en) | 2016-07-08 | 2016-07-08 | A kind of fixed mechanism of dry compound machine feeding roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205855488U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986245A (en) * | 2017-05-10 | 2017-07-28 | 无锡鑫驱机械制造有限公司 | A kind of polished rod automatic wire arranging device |
| CN107032156A (en) * | 2017-05-03 | 2017-08-11 | 苏州晨钟自动化科技有限公司 | A kind of small-sized cloth reel support frame |
| CN110281132A (en) * | 2019-06-25 | 2019-09-27 | 湖州银都铝业有限公司 | A kind of polishing machine for aluminum profile processing |
| CN111890790A (en) * | 2020-07-09 | 2020-11-06 | 蒙德明 | Rolling printing device for cloth processing |
-
2016
- 2016-07-08 CN CN201620720810.9U patent/CN205855488U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032156A (en) * | 2017-05-03 | 2017-08-11 | 苏州晨钟自动化科技有限公司 | A kind of small-sized cloth reel support frame |
| CN106986245A (en) * | 2017-05-10 | 2017-07-28 | 无锡鑫驱机械制造有限公司 | A kind of polished rod automatic wire arranging device |
| CN110281132A (en) * | 2019-06-25 | 2019-09-27 | 湖州银都铝业有限公司 | A kind of polishing machine for aluminum profile processing |
| CN110281132B (en) * | 2019-06-25 | 2020-08-14 | 湖州银都铝业有限公司 | Polishing machine for aluminum profile machining |
| CN111890790A (en) * | 2020-07-09 | 2020-11-06 | 蒙德明 | Rolling printing device for cloth processing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170104 Termination date: 20190708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |