CN101625557B - Controlling method for wrapping surface of tire - Google Patents
Controlling method for wrapping surface of tire Download PDFInfo
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- CN101625557B CN101625557B CN2009100415916A CN200910041591A CN101625557B CN 101625557 B CN101625557 B CN 101625557B CN 2009100415916 A CN2009100415916 A CN 2009100415916A CN 200910041591 A CN200910041591 A CN 200910041591A CN 101625557 B CN101625557 B CN 101625557B
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- film
- wrapping machine
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Abstract
The invention provides a controlling method for wrapping the surface of a tire, comprising the following steps: an industrial personal computer (IPC) analog simulates the deformation of rubber pieces in the process of spire piling and the arrangement distribution situation of the each rubber piece in the surface of the tire to obtain spire pitches among each rubber piece; the IPC computes the virtual circle central coordinate and the radius of a wrapper at each loop of the arc of the surface of the tire, and sends a date to a PLC; the IPC respectively computes the arc of the each loop of the arc section of the surface of the tire, the horizontal coordinate of the each loop of the linear section of the surface of the tire and a corresponding theoretical velocity, to form a data table to be sent to the PLC; the PLC computes the real velocity of the wrapper according to the received data table; and the PLC computes to obtain a track coordinate data of the wrapper corresponding at the each loop and finally controls the wrapper to wrap the surface of the tire. The method realizes analog simulation in the process of wrapping the surface of the tire, adjusts the walk track and the walk velocity of the head of the wrapper immediately, and greatly improves the wrapping quality of the surface of the tire.
Description
Technical field
The present invention relates to tyre technology, particularly a kind of controlling method for wrapping surface of tire.
Background technology
The technology that tyre surface twines as tire building has a long history, but but seldom its winding effect is carried out analog simulation in the winding process of tire tread, and this just is difficult to control the winding process of tyre surface, influences tire quality easily.In order to control tire quality preferably, use at present more be the measuring thickness device that utilizes on machine, detect and twine thickness, head is just walked backward after arriving thickness, thereby the winding to tire tread is controlled, but the shortcoming of this mode is: owing to need to detect thickness, and according to the speed of travel of thickness decision head, very high to the precision and the stability requirement of measuring thickness device like this; , need scan simultaneously the tire base in order to find the thickness measuring benchmark, consuming time and precision is not enough, make its winding effect instability, the machine maintenance rate is also high.And at present for the analog simulation of winding effect, the speed to wrapping machine that generally all can only be implemented on the x axle is regulated, and can't be implemented in the adjusting on other two coordinate axis, so the analog simulation of winding effect is still waiting exploitation.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of process for winding tyre surface is provided, this method has realized the analog simulation to the tyre surface winding process well, simultaneously the track and the speed of the walking of wrapping machine head is adjusted in real time, has improved the tyre surface winding mass of tire greatly.
The present invention is achieved through the following technical solutions: a kind of controlling method for wrapping surface of tire may further comprise the steps:
(1) distortion of industrial computer analog simulation film in the folded process of tyre surface spiral shell;
(2) according to the tyre surface effect form of form after the film distortion and setting, industrial computer analog simulation spiral shell is folded the arranged distribution situation of interior each film of tyre surface in the process, and obtains the pitch between each film;
(3) according to the tire base face form that designs, industrial computer has calculated wrapping machine and has respectively enclosed the virtual central coordinate of circle and the radius of arc at tyre surface, gives PLC with these data delivery then;
(4) according to the pitch between each film that obtains, industrial computer calculates with the corresponding relation parameter of horizontal ordinate and corresponding theoretical velocity with corresponding relation parameter, each circle of tyre surface straight-line segment of radian each circle of tyre surface arc respectively, then the tables of data that forms is flowed to PLC;
(5) PLC adjusts the theoretical velocity of each circle of wrapping machine according to the tables of data that receives, and obtains corresponding real-time speed;
(6) PLC calculates the track coordinate data of wrapping machine in three correspondences of xyz according to virtual central coordinate of circle, radius and the real-time speed of each circle of wrapping machine; Carrying out tyre surface according to the track coordinate data control wrapping machine that obtains then twines.
The above step (1) is specially:
According to the width of setting, earlier each film is subdivided into a plurality of equal portions; It is folded then each film to be carried out spiral shell, produces distortion between adjacent two films; Distortion situation between two films of industrial computer analog simulation, the winding effect of observing this tyre surface; In this process, the width of the every equal portions of film after the segmentation is thin more, and accuracy of simulation is also just high more.
Described step (2) is specially:
(2-1) according to the tire tread form of design, adopt integral method to calculate the area of tyre surface from right to left, add up once toward moving to left 0.1～1 millimeter for every during calculating;
(2-2) when the tread area of accumulation equal film area 1/3～2/3 the time, correspondingly at the accumulation starting point place of tyre surface place first film;
The tread area zero clearing that (2-3) will accumulate, remove the tread area that is covered by film, calculate tread area from tyre surface the right beginning accumulation again, when the tread area of accumulation equals a half of film area, the accumulation starting point place of tyre surface is corresponding place under a slice film;
(2-4) according to from right to left order, repeating step (2-3) finishes until the film spiral shell of this tyre surface is folded, obtains in the folded process of spiral shell the arranged distribution situation of each film in the tyre surface at last, obtains the pitch between each film simultaneously.
The radian of each circle of tyre surface arc described in the step (4) passes through formula
c＝na+b
Calculate, wherein c is a radian, and n is the number of turns, and a is a slope, and b is an intercept;
A=(c in the formula
2-c
1)/(n
2-n
1), b=c
2-an
2, c
1Be the corresponding radian of this initial circle, c
2Be the corresponding radian of next initial circle, n
1Be this initial circle value, n
2Be next initial circle value;
Form the number of turns-radian corresponding data table then, the data set of same circle includes the initial number of turns, slope, intercept and the wrapping machine theoretical velocity of this circle in the tables of data, and the span of the number of turns n in the same circle is organized between the initial number of turns of data for the initial number of turns of this group data and next;
The horizontal ordinate of each circle of described tyre surface straight-line segment passes through formula
x＝ne+f
Calculate, wherein x is the horizontal ordinate of tyre surface straight-line segment, and n is the number of turns, and e is a slope, and f is an intercept;
In the formula, e=(x
2-x
1)/(n
2-n
1), f=x
2-en
2, x
1Be the corresponding horizontal ordinate of this initial circle, x
2Be the corresponding horizontal ordinate of next initial circle, n
1Be this initial circle value, n
2Be next initial circle value;
Form the number of turns-horizontal ordinate corresponding data table then, the data set of same circle includes the initial number of turns, slope, intercept and the wrapping machine theoretical velocity of this circle in the tables of data, and the span of the number of turns n in the same circle is organized between the initial number of turns of data for the initial number of turns of this group data and next.
PLC is specially the adjustment of the wrapping machine theoretical velocity of tyre surface arc in the described step (5):
PLC is according to respectively enclosing theoretical velocity on the tables of data that receives and real-time radian difference is calculated the speed Δ p of wrapping machine head on the z axle, then according to the speeds match equation of three of xyz
ΔX＝R·sinα·Δp，ΔY＝R·cosα·Δp
Calculate wrapping machine respectively at the speed Δ X of x axle and the speed Δ Y of y axle, wherein α is the angle of wrapping machine heading and horizontal direction, and R is the radius of the tyre surface arc of industrial computer setting.
The calculating in the track coordinate data of each circle of tyre surface arc is specially PLC to wrapping machine in the described step (6):
The radius R and the virtual central coordinate of circle (X thereof of the tyre surface arc of setting according to industrial computer
0, Y
0), PLC is according to the circular arc equation
X＝X
0+R·cosα，Y＝Y
0+R·sinα
Calculate the horizontal ordinate X and the ordinate Y of wrapping machine each movement locus point on the tyre surface arc respectively, wherein α is the angle of wrapping machine heading and horizontal direction.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention has all realized the real-time cooperation of three of xyz on movement locus and speed of wrap, makes the wrapping machine head all keep good verticality with the tire base constantly, and the close adhesion of adhesive tape and tire base and the air of draining had very big benefit.
2, the present invention is by carrying out many equal portions segmentations to each film, and the analog simulation of folding process for the film spiral shell provides the preparation on the data structure; And the folded area that forms tyre surface of film spiral shell adopts integral algorithm, the coupling area of tyre surface accumulation is half of single film area, make the gradual change type that is arranged as of film, the phenomenon that the pitch sudden change therefore can not occur, make that the surface smoothness of twining the back tyre surface is good, thereby also improved the cure efficiency of tire; Simultaneously, be area matched method because the folded process of film spiral shell adopts, so the accumulation area of each film equates that with the design area of tyre surface this has just guaranteed that the glue amount of use and the glue amount of design differ less.
3, the present invention flows to PLC with the tables of data that forms after folding process by the spiral shell of analog simulation film, realizes the real-time adjustment of PLC to wrapping machine speed, and changes simulated effect into true effect, has improved the winding precision of wrapping machine.
Description of drawings
Fig. 1 is the movement locus synoptic diagram of wrapping machine head of the present invention at tyre surface.
Fig. 2 is the trajectory coordinates calculating synoptic diagram that the wrapping machine head is positioned at the tyre surface arc among Fig. 1.
Fig. 3 is dissolve a structure simulation synoptic diagram before the shape of film spiral shell among the present invention.
Fig. 4 is dissolve a structure simulation synoptic diagram after the shape of film spiral shell among the present invention.
Fig. 5 is the structure simulation synoptic diagram that the film spiral shell builds up tyre surface among the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
A kind of controlling method for wrapping surface of tire of present embodiment may further comprise the steps:
(1) distortion of industrial computer analog simulation film in the folded process of tyre surface spiral shell;
(2) according to the tyre surface effect form of form after the film distortion and setting, industrial computer analog simulation spiral shell is folded the arranged distribution situation of interior each film of tyre surface in the process, and obtains the pitch between each film;
(3) according to the tire base face form that designs, industrial computer has calculated wrapping machine and has respectively enclosed the virtual central coordinate of circle and the radius of arc at tyre surface, gives PLC with these data delivery then;
(4) according to the pitch between each film that obtains, industrial computer calculates with the corresponding relation parameter of horizontal ordinate and corresponding theoretical velocity with corresponding relation parameter, each circle of tyre surface straight-line segment of radian each circle of tyre surface arc respectively, then the tables of data that forms is flowed to PLC;
(5) PLC adjusts the theoretical velocity of each circle of wrapping machine according to the tables of data that receives, and obtains corresponding real-time speed;
(6) PLC is according to virtual central coordinate of circle, radius and the real-time speed of each circle of wrapping machine, calculate the track coordinate data of wrapping machine in three correspondences of xyz, wrapping machine at the movement locus of tyre surface as shown in Figure 1, dotted line 4 is the movement locus of head among the figure, solid line 5 is a tyre surface; Carrying out tyre surface according to the track coordinate data control wrapping machine that obtains then twines.
Above step (1) is specially:
According to the width of setting, earlier each film is subdivided into a plurality of equal portions; It is folded then each film to be carried out spiral shell, produces distortion between adjacent two films, and the film form before and after its distortion as shown in Figure 3 and Figure 4; Distortion situation between two films of industrial computer analog simulation, the winding effect of observing this tyre surface; In this process, the width of the every equal portions of film after the segmentation is thin more, and accuracy of simulation is also just high more.
As shown in Figure 5, step (2) is specially:
(2-1) according to the tire tread form of design, adopt integral method to calculate the area of tyre surface 3 from right to left, add up once toward moving to left 0.1～1 millimeter for every during calculating;
(2-2) when the tread area 7 of accumulation equal film area 1/3～2/3 the time, correspondingly at the accumulation starting point place of tyre surface place first film 1;
The tread area zero clearing that (2-3) will accumulate, remove the tread area that is covered by film, calculate tread area from tyre surface the right beginning accumulation again, when the tread area 6 of accumulation equals a half of film area, the accumulation starting point place of tyre surface is corresponding place under a slice film 2;
(2-4) according to from right to left order, repeating step (2-3) finishes until the film spiral shell of this tyre surface is folded, obtains in the folded process of spiral shell the arranged distribution situation of each film in the tyre surface at last, obtains the pitch between each film simultaneously.
The radian of each circle of tyre surface arc passes through formula in the step (4)
c＝na+b
Calculate, wherein c is a radian, and n is the number of turns, and a is a slope, and b is an intercept;
A=(c in the formula
2-c
1)/(n
2-n
1), b=c
2-an
2, c
1Be the corresponding radian of this initial circle, c
2Be the corresponding radian of next initial circle, n
1Be this initial circle value, n
2Be next initial circle value;
Form the number of turns-radian corresponding data table then, the data set of same circle includes the initial number of turns, slope, intercept and the wrapping machine theoretical velocity of this circle in the tables of data, and the span of the number of turns n in the same circle is organized between the initial number of turns of data for the initial number of turns of this group data and next;
The horizontal ordinate of each circle of tyre surface straight-line segment passes through formula
x＝ne+f
Calculate, wherein x is the horizontal ordinate of tyre surface straight-line segment, and n is the number of turns, and e is a slope, and f is an intercept;
In the formula, e=(x
2-x
1)/(n
2-n
1), f=x
2-en
2, x
1Be the corresponding horizontal ordinate of this initial circle, x
2Be the corresponding horizontal ordinate of next initial circle, n
1Be this initial circle value, n
2Be next initial circle value;
Form the number of turns-horizontal ordinate corresponding data table then, the data set of same circle includes the initial number of turns, slope, intercept and the wrapping machine theoretical velocity of this circle in the tables of data, and the span of the number of turns n in the same circle is organized between the initial number of turns of data for the initial number of turns of this group data and next.
PLC is specially the adjustment of the wrapping machine theoretical velocity of tyre surface arc in the step (5):
PLC is according to respectively enclosing theoretical velocity on the tables of data that receives and real-time radian difference is calculated the speed Δ p of wrapping machine head on the z axle, then according to the speeds match equation of three of xyz
ΔX＝R·sinα·Δp，ΔY＝R·cosα·Δp
Calculate wrapping machine respectively at the speed Δ X of x axle and the speed Δ Y of y axle, wherein α is the angle of wrapping machine heading and horizontal direction, and R is the radius of the tyre surface arc of industrial computer setting.
The calculating in the track coordinate data of each circle of tyre surface arc is specially PLC to wrapping machine in the step (6):
As shown in Figure 2, the radius R and the virtual central coordinate of circle (X thereof of the tyre surface arc of setting according to industrial computer
0, Y
0), PLC is according to the circular arc equation
X＝X
0+R·cos?α，Y＝Y
0+R·sinα
Calculate the horizontal ordinate X and the ordinate Y of wrapping machine each movement locus point on the tyre surface arc respectively, wherein α is the angle of wrapping machine heading and horizontal direction.
As mentioned above, just can realize the present invention preferably, the foregoing description is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to content of the present invention change and modification, all contained by claim of the present invention scope required for protection.
Claims (4)
1. controlling method for wrapping surface of tire is characterized in that, may further comprise the steps:
(1) distortion of industrial computer analog simulation film in the folded process of tyre surface spiral shell;
(2) according to the tyre surface effect form of form after the film distortion and setting, industrial computer analog simulation spiral shell is folded the arranged distribution situation of interior each film of tyre surface in the process, and obtains the pitch between each film; Be specially:
(2-1) according to the tire tread form of design, adopt integral method to calculate the area of tyre surface from right to left, add up once toward moving to left 0.1～1 millimeter for every during calculating;
(2-2) when the tread area of accumulation equal film area 1/3～2/3 the time, correspondingly at the accumulation starting point place of tyre surface place first film;
The tread area zero clearing that (2-3) will accumulate, remove the tread area that is covered by film, calculate tread area from tyre surface the right beginning accumulation again, when the tread area of accumulation equals a half of film area, the accumulation starting point place of tyre surface is corresponding place under a slice film;
(2-4) according to from right to left order, repeating step (2-3) finishes until the film spiral shell of this tyre surface is folded, obtains in the folded process of spiral shell the arranged distribution situation of each film in the tyre surface at last, obtains the pitch between each film simultaneously;
(3) according to the tire base face form that designs, industrial computer has calculated wrapping machine and has respectively enclosed the virtual central coordinate of circle and the radius of arc at tyre surface, gives PLC with these data delivery then;
(4) according to the pitch between each film that obtains, industrial computer calculates with the corresponding relation parameter of horizontal ordinate and corresponding theoretical velocity with corresponding relation parameter, each circle of tyre surface straight-line segment of radian each circle of tyre surface arc respectively, then the tables of data that forms is flowed to PLC;
The radian of each circle of described tyre surface arc passes through formula
c＝na+b
Calculate, wherein c is a radian, and n is the number of turns, and a is a slope, and b is an intercept;
A=(c in the formula
2-c
1)/(n
2-n
1), b=c
2-an
2, c
1Be the corresponding radian of this initial circle, c
2Be the corresponding radian of next initial circle, n
1Be this initial circle value, n
2Be next initial circle value;
Form the number of turns-radian corresponding data table then, the data set of same circle includes the initial number of turns, slope, intercept and the wrapping machine theoretical velocity of this circle in the tables of data, and the span of the number of turns n in the same circle is organized between the initial number of turns of data for the initial number of turns of this group data and next;
The horizontal ordinate of each circle of described tyre surface straight-line segment passes through formula
x＝ne+f
Calculate, wherein x is the horizontal ordinate of tyre surface straight-line segment, and n is the number of turns, and e is a slope, and f is an intercept;
In the formula, e=(x
2-x
1)/(n
2-n
1), f=x
2-en
2, x
1Be the corresponding horizontal ordinate of this initial circle, x
2Be the corresponding horizontal ordinate of next initial circle, n
1Be this initial circle value, n
2Be next initial circle value;
Form the number of turns-horizontal ordinate corresponding data table then, the data set of same circle includes the initial number of turns, slope, intercept and the wrapping machine theoretical velocity of this circle in the tables of data, and the span of the number of turns n in the same circle is organized between the initial number of turns of data for the initial number of turns of this group data and next;
(5) PLC adjusts the theoretical velocity of each circle of wrapping machine according to the tables of data that receives, and obtains corresponding real-time speed;
(6) PLC calculates the track coordinate data of wrapping machine in three correspondences of xyz according to virtual central coordinate of circle, radius and the real-time speed of each circle of wrapping machine; Carrying out tyre surface according to the track coordinate data control wrapping machine that obtains then twines.
2. controlling method for wrapping surface of tire according to claim 1 is characterized in that, described step (1) is specially:
According to the width of setting, earlier each film is subdivided into a plurality of equal portions; It is folded then each film to be carried out spiral shell, produces distortion between adjacent two films; Distortion situation between two films of industrial computer analog simulation, the winding effect of observing this tyre surface; In this process, the width of the every equal portions of film after the segmentation is thin more, and accuracy of simulation is also just high more.
3. controlling method for wrapping surface of tire according to claim 1, it is characterized in that, PLC adjusts the theoretical velocity of each circle of wrapping machine according to the tables of data that receives in the described step (5), and wherein PLC is specially the adjustment of the wrapping machine theoretical velocity of tyre surface arc:
PLC is according to respectively enclosing theoretical velocity on the tables of data that receives and real-time radian difference is calculated the speed Δ p of wrapping machine head on the z axle, then according to the speeds match equation of three of xyz
ΔX＝R·sin?α·Δp，ΔY＝R·cosα·Δp
Calculate wrapping machine respectively at the speed Δ X of x axle and the speed Δ Y of y axle, wherein α is the angle of wrapping machine heading and horizontal direction, and R is the radius of the tyre surface arc of industrial computer setting.
4. controlling method for wrapping surface of tire according to claim 1, it is characterized in that, PLC is according to virtual central coordinate of circle, radius and the real-time speed of each circle of wrapping machine in the described step (6), calculate the track coordinate data of wrapping machine in three correspondences of xyz, wherein the calculating in the track coordinate data of each circle of tyre surface arc is specially PLC to wrapping machine:
The radius R and the virtual central coordinate of circle (X thereof of the tyre surface arc of setting according to industrial computer
0, Y
0), PLC is according to the circular arc equation
X＝X
0+R·cosα，Y＝Y
0+R·sinα
Calculate the horizontal ordinate X and the ordinate Y of wrapping machine each movement locus point on the tyre surface arc respectively, wherein α is the angle of wrapping machine heading and horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100415916A CN101625557B (en) | 2009-08-03 | 2009-08-03 | Controlling method for wrapping surface of tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100415916A CN101625557B (en) | 2009-08-03 | 2009-08-03 | Controlling method for wrapping surface of tire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101625557A CN101625557A (en) | 2010-01-13 |
| CN101625557B true CN101625557B (en) | 2011-08-17 |
Family
ID=41521431
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100415916A Expired - Fee Related CN101625557B (en) | 2009-08-03 | 2009-08-03 | Controlling method for wrapping surface of tire |
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| CN (1) | CN101625557B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859137B (en) * | 2010-05-28 | 2012-11-07 | 武汉理工大学 | Speed chain intelligent optimization system during tread extruding process and optimization method thereof |
| CN102294834B (en) * | 2011-08-11 | 2013-10-23 | 三角（威海）华盛轮胎有限公司 | Three dimensional winding method of meridian tyre for engineering |
| CN103612408B (en) * | 2013-11-26 | 2016-05-11 | 广州华工百川科技有限公司 | A kind of tire tread layering winding method |
| CN105437585B (en) * | 2014-09-28 | 2018-01-19 | 青岛软控机电工程有限公司 | A kind of tyre wrapping machine control method |
| CN104960217B (en) * | 2015-05-18 | 2017-03-29 | 天津赛象科技股份有限公司 | For the adhesive tape stacking simulation method of tread wrapping |
| CN105034424B (en) * | 2015-08-19 | 2017-03-08 | 桂林方菱信息科技有限公司 | A kind of tire tread profiling winding method based on pixel method |
| DE102020209014A1 (en) | 2020-07-17 | 2022-01-20 | Continental Reifen Deutschland Gmbh | Method for determining the winding pattern for a tread winding |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599562A1 (en) * | 1992-11-21 | 1994-06-01 | Sumitomo Rubber Industries Limited | Radial tyre and method of manufacture thereof |
| CN1550360A (en) * | 2003-05-13 | 2004-12-01 | 住友橡胶工业株式会社 | Pneumatic tire |
| CN1736694A (en) * | 2005-09-08 | 2006-02-22 | 三角轮胎股份有限公司 | Engineered meridian tyre blank molding method |
| CN1835852A (en) * | 2003-07-16 | 2006-09-20 | 株式会社普利司通 | Tire and tire producing method |
-
2009
- 2009-08-03 CN CN2009100415916A patent/CN101625557B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599562A1 (en) * | 1992-11-21 | 1994-06-01 | Sumitomo Rubber Industries Limited | Radial tyre and method of manufacture thereof |
| CN1550360A (en) * | 2003-05-13 | 2004-12-01 | 住友橡胶工业株式会社 | Pneumatic tire |
| CN1835852A (en) * | 2003-07-16 | 2006-09-20 | 株式会社普利司通 | Tire and tire producing method |
| CN1736694A (en) * | 2005-09-08 | 2006-02-22 | 三角轮胎股份有限公司 | Engineered meridian tyre blank molding method |
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| Publication number | Publication date |
|---|---|
| CN101625557A (en) | 2010-01-13 |
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Owner name: LIUZHOU SCUT BESTRY RUBBER + PLASTIC TECHNOLOGY CO Free format text: FORMER OWNER: GUANGZHOU SCUT BESTRY SCI-TECH LTD. Effective date: 20120613 |
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Effective date of registration: 20120613 Address after: 545006 the Guangxi Zhuang Autonomous Region Liuzhou city and the Industrial District No. C-10 Patentee after: Liuzhou SCUT Bestry Rubber Plastic Technology Co.,Ltd. Address before: 510640, Tianhe District, Guangdong, Guangzhou Province, five mountain road, South China University of Technology, National University Science Park, building W201-214 Patentee before: Guangzhou SCUT Bestry Sci-Tech Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Controlling method for wrapping surface of tire Effective date of registration: 20150727 Granted publication date: 20110817 Pledgee: Bank of China Limited by Share Ltd Guangzhou Tianhe branch Pledgor: Liuzhou SCUT Bestry Rubber Plastic Technology Co.,Ltd. Registration number: 2015990000605 |
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Granted publication date: 20110817 Termination date: 20170803 |
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| CF01 | Termination of patent right due to non-payment of annual fee |