CN110588033B - System and method for automatically identifying and improving roundness of tire blank on line - Google Patents
System and method for automatically identifying and improving roundness of tire blank on line Download PDFInfo
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- CN110588033B CN110588033B CN201910796733.3A CN201910796733A CN110588033B CN 110588033 B CN110588033 B CN 110588033B CN 201910796733 A CN201910796733 A CN 201910796733A CN 110588033 B CN110588033 B CN 110588033B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0633—After-treatment specially adapted for vulcanising tyres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0633—After-treatment specially adapted for vulcanising tyres
- B29D2030/0634—Measuring, calculating, correcting tyre uniformity, e.g. correcting RFV
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Abstract
The invention discloses a system and a method for automatically identifying and improving the roundness of a tire blank on line, which improve the size of the tire blank by improving and designing a form detector and a transfer ring and controlling an on-line improving unit based on the out-of-roundness information of the tire received by a main machine of a forming machine; the online improvement unit comprises a transmission ring body, a plurality of clamping blocks uniformly arranged along the circumferential direction of the transmission ring body, and a plurality of servo electric cylinders which are independently extended or contracted by the corresponding control clamping blocks, the clamping blocks are connected with the servo electric cylinders through clamping block platforms, and fine adjustment modules are further arranged on the clamping blocks and independently act relative to the clamping blocks, online automatic detection and directional improvement of tire blank out-of-roundness can be realized, monitoring and circular promotion of product out-of-roundness are realized in the production process stage of products, the finished product out-of-roundness yield is ensured, the enterprise cost is effectively reduced, and the market competitiveness is improved.
Description
Technical Field
The invention belongs to the technical field of tire molding and manufacturing, and particularly relates to a system and a method for automatically identifying and improving the roundness of a tire blank on line.
Background
The current market has higher and higher requirements on the use of tires, particularly the driving comfort in the use process, so the dynamic balance performance guarantee in the tire manufacturing process becomes more and more important, particularly in the molding process of a tire blank. The dynamic uniformity performance of the tire blank is determined in the forming process, the quality of the tire blank determines the dynamic uniformity performance of the tire, the dynamic uniformity performance is poor, the comfort of customers is influenced finally, and the core competitiveness of products is reduced. Therefore, how to improve the dynamic uniformity performance of the tire is more and more emphasized by tire manufacturing enterprises, and the out-of-roundness is used as an index for evaluating the dynamic uniformity performance, so that the market demand for the performance is higher and higher.
At present, the management and control of the tire blank circumference and the out-of-roundness in the industry are mostly limited to manual sampling measurement after the molding is finished, although the tire diameter is also automatically measured, the detection of the out-of-roundness of the tire is mostly concentrated on a finished product end, for example, the invention patent with the publication number of (CN 106225751B) discloses a method and a device for automatically measuring the outer circumference and the outer diameter of the tire, which can replace manual measurement; however, measurement after tire building is also performed, a detection and identification method and a targeted automatic improvement method in the manufacturing process are lacked, serious hysteresis exists, and a large amount of loss is caused to a manufacturing enterprise.
Disclosure of Invention
The invention provides a system and a method for automatically identifying and improving the roundness of a tire blank on line, aiming at solving the current situation that the roundness is difficult to detect and directionally improve in the existing tire manufacturing process.
The invention is realized by adopting the following technical scheme:
the automatic identification and online improvement system for the roundness of the tire blank comprises a forming machine host, an automatic identification unit and an online improvement unit, wherein the automatic identification unit is arranged on a forming machine and used for detecting the roundness information of the tire blank and transmitting a detection result to the forming machine host; the main machine of the forming machine controls the online improving unit to improve the size of the tire blank according to the received detection result;
the online improving unit comprises a crown transfer ring, the crown transfer ring comprises a transfer ring body, a plurality of clamping blocks uniformly arranged along the circumferential direction of the transfer ring body and a plurality of servo electric cylinders for controlling the clamping blocks to extend or contract independently, and the clamping blocks are connected with the servo electric cylinders through clamping block platforms; the clamping block is also provided with a fine adjustment module, and the fine adjustment module independently acts relative to the clamping block so as to adjust the out-of-roundness of the tire blank.
Furthermore, the automatic identification unit comprises a laser sensor and a shape detector processor, the laser sensor is connected with the shape detector processor, and the laser sensor is used for measuring the radius of n point positions evenly distributed along the circumferential direction of the tire blank and transmitting the detection data to the shape detector processor for analysis and judgment.
Further, the shape detector processor comprises a tire blank overall radius analysis module, a tire blank local radius analysis module and a tire blank roundness judgment module, and when the tire roundness is analyzed and judged:
the whole radius analysis module of the embryo: calculating the average value of n groups of data collected by the laser sensor, and recording the average value as the embryo radius R;
a embryo local radius analysis module: uniformly dividing a tire blank into m regions according to angles, wherein m is the number of clamping blocks at the same time, n is an integral multiple of m, and the radii of the m regions are respectively obtained and are respectively marked as R1, R2 and … Rm;
a tire blank roundness judgment module: the values of R1, R2, … Rm are compared with the tire radius R, respectively, to determine the areas of the embryo that are depressed or raised, and to output the radius values for the corresponding areas.
Further, the fine tuning module comprises fine tuning beads and a fine tuning servo electric cylinder, a containing groove is formed in the bottom surface of the clamping block, a movable plate is arranged in the containing groove, a plurality of bead grooves containing the fine tuning beads are formed in the movable plate, the fine tuning beads are evenly embedded in the bead grooves in a sleeved mode, the fine tuning servo electric cylinder is arranged on a top end clamping block platform of the clamping block, the movable plate is connected with the micro servo electric cylinder, telescopic adjustment of the movable plate is achieved through the micro servo electric cylinder, then the fine tuning beads are driven to move in a telescopic mode, and the servo electric cylinder and the micro servo electric cylinder are both electrically connected with the main engine of the forming machine.
Furthermore, the bottom surface of the clamping block is also provided with a plurality of pricker needles for realizing more stable grabbing of the tire blank, and the pricker needles are fixedly arranged on the periphery of the clamping block.
Further, the molding machine host comprises a concave area control adjustment module and a convex area control adjustment module:
the concave area control and adjustment module controls the clamping blocks in the corresponding areas to extend to positions to be improved according to concave values, the concave values Xx are R-Rx, x belongs to m, and the extending amounts Yx are A-R-Kx Xx, wherein A is the distance from the laser sensor to the central axis of the forming drum, and Kx is a constant corresponding to the concave areas, so that directional expansion compensation of the concave areas is realized;
the convex area adjusting module controls the clamping block of the corresponding area to extend into the position to be improved according to the convex value Xy＝RyR, Y belongs to m, the extending amount Yy is A-R, meanwhile, the fine tuning beads at the bottom of the clamping block extend in under the action of the miniature servo electric cylinder, and the extending amount Y isy‘＝Ky*XyAnd Ky is a constant corresponding to the convex area, the convex area is limited by the mechanical pressure of the fine adjustment bead in the shaping process, and the whole convex area is uniformly expanded according to the outer contour limited by the fine adjustment bead, so that the directional optimization of the convex area to a true circle state is realized.
The invention also provides an automatic identification and online improvement method for the roundness of the tire blank, which comprises the following steps:
aiming at a sunken area, controlling a clamping block of the corresponding area to extend to a position to be improved according to a sunken value, wherein the sunken value Xx is R-Rx, x belongs to m, and the extending amount Yx is A-R-Kx Xx, wherein A is the distance from a laser sensor to a central axis of a forming drum, and Kx is a constant corresponding to the sunken area, so that directional expansion compensation of the sunken area is realized;
aiming at the raised area, controlling the clamping block of the corresponding area to extend into the position to be improved, wherein the raised value X isy＝RyR, Y belongs to m, the extending amount Yy is A-R, meanwhile, the fine tuning beads at the bottom of the clamping block extend in under the action of the miniature servo electric cylinder, and the extending amount Y isy‘＝Ky*XyThe Ky is a constant corresponding to the convex area, the convex area is limited by the mechanical pressure of the fine tuning beads in the shaping process, and the whole convex area is uniformly expanded according to the outer contour limited by the fine tuning beads, so that the directional optimization of the convex area to a true circle state is realized;
and 3, repeatedly executing the steps 1-2 until the roundness of the tire blank reaches the standard requirement.
Further, in the step 1, the out-of-roundness of the green tyre is detected specifically by the following method:
(1) acquiring n groups of data in the circumferential direction of the tire through a laser sensor, and calculating an average value which is recorded as the tire blank radius R;
(2) uniformly dividing a tire blank into m regions according to angles, wherein m is the number of clamping blocks at the same time, n is an integral multiple of m, and the radii of the m regions are respectively obtained and are respectively marked as R1, R2 and … Rm;
(3) the values of R1, R2, … Rm are compared with the tire radius R, respectively, to determine the areas of the embryo that are depressed or raised, and to output the radius values for the corresponding areas.
Further, in the step 3, when the roundness of the green tire is directionally adjusted, the following three optimization thresholds are set, and when the following three optimization thresholds are reached, the extending amount of each clamping block is locked:
(1) setting the difference between the radius of the green tire and the radius of the divided area to be less than or equal to 1.0;
(2) setting the difference value of the radiuses of any two areas to be less than or equal to 1.0;
(3) at least every 6 continuously produced tire blanks are taken as a reference, and the extreme difference value of the radius R of the area of the same area of at least 6 continuous tires is less than or equal to 0.5.
Compared with the prior art, the invention has the advantages and positive effects that:
according to the invention, through adding the shape detector equipment on the forming machine and performing creative improvement design on the transfer ring of the forming machine, the on-line automatic detection and directional improvement of the out-of-roundness of the green tyre are realized, the monitoring and circular promotion of the out-of-roundness of the product are realized in the production process stage of the product, the out-of-roundness of the finished product is effectively avoided, the enterprise cost is effectively reduced, and the market competitiveness is improved.
Drawings
FIG. 1 is a schematic diagram illustrating a detection principle of a morphology detector according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a mounting position structure of the form detector according to the embodiment of the present invention;
FIG. 3 is a schematic diagram of a waveform after converting the circumferential dimension according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a crown transfer ring according to an embodiment of the invention;
FIG. 5 is a schematic view, partially in section, of the crown transfer ring clamp block of FIG. 4;
wherein: 1. a morphology detector support; 2. a laser sensor; 3. a green tire; 4. a forming drum; 5. a servo electric cylinder; 6. a miniature servo electric cylinder; 7. fixing the bolt; 8. a clamping block platform; 9. a clamping block; 10. a needle; 11. fine-tuning the beads; 12. a ring body; 13. a bead groove; 14. moving the plate; 15. a bolt; 16. a miniature servo cylinder rod.
Detailed Description
In order that the above objects and advantages of the present invention may be more clearly understood, a detailed description of the embodiments of the present invention will be made below with reference to the accompanying drawings:
example 1, a system for automatically identifying and improving the roundness of a tire blank on line is based on the existing tire building machine main machine, and realizes the automatic detection and directional improvement of the uniformity of the tire blank mainly through the following ways: (1) a high-precision form detector, namely an automatic identification unit is additionally arranged at the cross beam of the forming machine, and is used for detecting the circumferential out-of-roundness of the green tyre and feeding the result back to the main machine of the forming machine; (2) after receiving the testing result, the main frame of the forming machine adjusts the clamping size of the corresponding area of the transmission ring, so that the circumferential size difference of the green tire is improved, and the main frame of the forming machine is specific:
as shown in fig. 1-2, the principle of the high-precision form detector is that a high-precision laser sensor is used, a form detector is installed at a beam of an existing forming machine, after installation is completed, the center of the laser sensor in the form detector is aligned with and perpendicular to the center of a forming drum, the laser sensor extends out at the moment, the form detector automatically calibrates the distance from the laser sensor to the center shaft of the forming drum and records the distance as a, after production of a green tire is completed, the distance from the laser sensor of the form detector to the middle of the crown of the green tire is measured as B, the center shaft of the forming drum is used as a base point, and the radius R of a circumferential point of the green tire is recorded as a-B. After the tire rotates for one circle, the laser sensor finishes measuring 960 points of the tire blank uniformly distributed in the circumferential direction, wherein R1 is A-B1, R2 is A-B2 … …, R960 is A-B960, and the data are uploaded to a shape detector processor after the data are measured so as to judge the roundness of the tire.
The high-precision form detector comprises a tire blank overall radius analysis module, a tire blank local radius analysis module and a tire blank roundness judgment module, wherein the tire blank roundness is detected in the following mode, the tire blank overall radius analysis module calculates the mean value of the radius values of 960 points in the 360-degree circumferential range of the tire blank, the mean value is recorded as the tire blank radius R, and the tire blank radius R is (R1+ R2+ … … + R960)/960. Meanwhile, a green tire is uniformly divided into 6 areas of alpha, beta, gamma, delta, epsilon and zeta according to angles, a local green tire radius analysis module is used for calculating the mean value of 160 points in a fixed area, the mean value is recorded as the green tire radius of the area and is respectively R alpha, R beta, R gamma, R delta, R epsilon and R zeta, then a green tire roundness judgment module is used for comparing the numerical values of the 6 radii with R, the concave/convex area of the green tire in the circumferential direction is positioned according to the size of the mean value, and the radius numerical value of the corresponding area is output, wherein R alpha is (R1+ R2+ … … + R160)/160, and R beta is (R161+ R162+ … … + R320)/160, 160 … …)
R ζ ═ (R801+ R802+ … … + R960)/160; after the calculation of the radius system of each region is completed, the region with the largest radius R value corresponding to the region in the peak region is converted into a waveform diagram as shown in FIG. 3, and the region with the smallest radius R value corresponding to the region in the valley region is defined as a convex region.
As shown in fig. 4, the crown transfer ring comprises a ring body 12, a clamping block 9, a fixing bolt 7, a servo electric cylinder 5, a bead groove 13 and a fine adjustment bead 11. The transmission ring body 12 is provided with 6 groups of clamping blocks (six areas evenly divided corresponding to the circumferential direction of the green tire) which are evenly distributed in the circumferential direction. The 6 groups of clamping blocks are mutually independent, the clamping block 9 is connected with the servo electric cylinder 5 through the clamping block platform 8, the servo electric cylinder 5 is fixed at the top end of the transmission ring body 12, and the quantitative extension and contraction of the clamping blocks are controlled through the servo electric cylinder.
As shown in figure 5, 4 needles 10 and 20 fine tuning beads 11 are distributed at the bottom of each clamping block of the crown transfer ring, the four needles are fixed at the four corners of the clamping block 9, and the 20 fine tuning beads are arranged according to 5 x 4 and are uniformly nested in the bead grooves 13 at the bottom of the clamping block. The top end of the bead groove 13 is fixed on the moving plate 14, the moving plate 14 is fixedly connected with the micro servo electric cylinder 16 through the bolt 15, the micro servo electric cylinder 16 is fixed on the flat plate at the top end of the clamping block, and the micro servo electric cylinder 16 can realize small-distance telescopic adjustment of the moving plate and further drive the fine tuning bead to move telescopically.
The shape detector sends the positions corresponding to the concave area and the convex area of the tire and the radius of the positions to a main machine of the forming machine, the positions and the radius of the positions are analyzed and judged by the main machine of the forming machine, and the concave area or the convex area can be locally adjusted based on the design of the concave area control adjusting module and the convex area control adjusting module, and the shape detector detects the shape of the concave area or the convex area in real time until the roundness of the tire blank meets the requirement.
For example, after the morphology detector processor performs data analysis, assume radius R of the β regionβThe maximum radius R alpha of the alpha area is the minimum, the maximum radius is recorded as a convex area beta and a concave area alpha of the green tire, and the convex area beta and the area radius R of the surface of the green tire are respectively outputβThe convex value XβAnd a recessed area alpha, an area radius R alpha and a recessed numerical value X alpha, wherein the molding machine host carries out action commands on the transmission rings corresponding to the beta and alpha areas.
Bulge value X for bulge region betaβ＝RβThe crown transfer ring clamping blocks corresponding to the R and beta areas can extend to the position to be improved under the control of the servo electric cylinder at the corresponding positions when clamping the crown, and the extending amount YβThe fine tuning beads at the bottom of the clamping block slowly extend into the clamping block under the control of a miniature servo electric cylinder, and the extending amount Y isβ‘＝Kβ*XβIn which K isβAnd the beta region of the tire blank is subjected to mechanical pressure limitation by the fine adjustment beads in the shaping process, so that the whole beta region can be uniformly expanded under the action of air pressure according to the outline limited by the fine adjustment beads, and the directional optimization of the convex position to a true circle state is realized.
And for a sunken area alpha and a sunken value X alpha thereof, when a crown transfer ring clamping block corresponding to the alpha area clamps a crown, the crown transfer ring clamping block extends to a position to be improved under the control of a corresponding servo electric cylinder, the extending amount Y alpha is A-R-K alpha X alpha, wherein K alpha is an empirical constant (obtained by experimental modeling analysis) corresponding to the alpha area, then the tire blank is inflated and shaped, and the alpha area of the tire blank is uniformly expanded under the action of air pressure according to the outer contour limited by the alpha area clamping block in the shaping process, so that the directional expansion compensation of the sunken position is realized. The process is repeated in such a way, so that the green tire infinitely approaches to a true circle with the diameter of R, and the directional improvement of the out-of-roundness of the green tire is realized.
(1) acquiring n groups of data in the circumferential direction of the tire through a laser sensor, and calculating an average value which is recorded as the tire blank radius R;
(2) uniformly dividing a tire blank into m regions according to angles, wherein m is the number of clamping blocks at the same time, n is an integral multiple of m, and the radii of the m regions are respectively obtained and are respectively marked as R1, R2 and … Rm;
(3) the values of R1, R2, … Rm are compared with the tire radius R, respectively, to determine the areas of the embryo that are depressed or raised, and to output the radius values for the corresponding areas.
aiming at a sunken area, controlling a clamping block of the corresponding area to extend to a position to be improved according to a sunken value, wherein the sunken value Xx is R-Rx, x belongs to m, and the extending amount Yx is A-R-Kx Xx, wherein A is the distance from a laser sensor to a central axis of a forming drum, and Kx is a constant corresponding to the sunken area, so that directional expansion compensation of the sunken area is realized;
aiming at the raised area, controlling the clamping block of the corresponding area to extend into the position to be improved, wherein the raised value X isy＝RyR, Y belongs to m, the extending amount Yy is A-R, meanwhile, the fine tuning beads at the bottom of the clamping block extend in under the action of the miniature servo electric cylinder, and the extending amount Y isy‘＝Ky*XyThe Ky is a constant corresponding to the convex area, the convex area is limited by the mechanical pressure of the fine tuning beads in the shaping process, and the whole convex area is uniformly expanded according to the outer contour limited by the fine tuning beads, so that the directional optimization of the convex area to a true circle state is realized;
the first mode is that when the difference value between the tire blank radius and the area radius is set to be less than or equal to 1.0 in the data processing system, the automatic adjustment mode of the transfer ring is closed, and the extending amount of each clamping block is locked;
in the second mode, when the radius difference value of any two areas is set to be less than or equal to 1.0 in the data processing system, the automatic adjustment mode of the transfer ring is closed, and the extension amount of each clamping block is locked;
and the third mode is that the measurement data of every 6 continuously produced tire blanks are taken as the reference, when the difference value of the radius R of the same area of the 6 continuous tire blanks is less than or equal to 0.5, the automatic adjustment mode of the transfer ring is closed, and the extending amount of each clamping block is locked.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (9)
1. The automatic tire blank roundness recognition and online improvement system comprises a forming machine host, an automatic recognition unit and an online improvement unit, and is characterized in that the automatic recognition unit is arranged on the forming machine host and used for detecting the tire blank roundness information and transmitting the detection result to the forming machine host; the main machine of the forming machine controls the online improving unit to improve the size of the tire blank according to the received detection result;
the online improving unit comprises a crown transfer ring, the crown transfer ring comprises a transfer ring body (12), a plurality of clamping blocks (9) uniformly arranged along the circumferential direction of the transfer ring body (12), and a plurality of servo electric cylinders (5) for controlling the independent extension or contraction of the clamping blocks (9) correspondingly, and the clamping blocks (9) are connected with the servo electric cylinders (5) through clamping block platforms (8); the clamping block (9) is further provided with a fine adjustment module, the fine adjustment module independently acts relative to the clamping block (9), and the out-of-roundness of the tire blank (3) can be optimally adjusted under the control of a main machine of the forming machine.
2. The system for automatically identifying and improving the roundness of a tire blank on line according to claim 1, wherein: the automatic identification unit comprises a laser sensor (2) and a form detector processor, the laser sensor (2) is connected with the form detector processor, and the laser sensor (2) is used for measuring the radius of n point positions which are uniformly distributed along the circumferential direction of the tire blank (3) and transmitting the detection data to the form detector processor for analysis and judgment.
3. The system for automatically identifying and improving the roundness of a tire blank on line according to claim 2, wherein: the shape detector processor comprises a tire blank overall radius analysis module, a tire blank local radius analysis module and a tire blank roundness judgment module, and when the tire roundness is analyzed and judged:
the whole radius analysis module of the embryo: calculating the average value of n groups of data collected by the laser sensor, and recording the average value as the embryo radius R;
a embryo local radius analysis module: uniformly dividing a tire blank into m regions according to angles, wherein m is the number of clamping blocks at the same time, n is an integral multiple of m, and the radii of the m regions are respectively obtained and are respectively marked as R1, R2 and … Rm;
a tire blank roundness judgment module: the values of R1, R2 and … Rm are compared with the radius R of the embryo to determine the concave area or convex area of the embryo and output the radius value of the corresponding area.
4. The system for automatically identifying and improving the roundness of the tire blank on line according to claim 1 or 3, wherein: the fine tuning module comprises fine tuning beads (11) and fine tuning servo electric cylinders (6), a containing groove is formed in the bottom surface of the clamping block (9), a moving plate (14) is arranged in the containing groove, a plurality of bead grooves (13) containing the fine tuning beads (11) are formed in the moving plate (14), the fine tuning beads (11) are embedded in the bead grooves (13), the fine tuning servo electric cylinders (6) are arranged on top end clamping block platforms (8) of the clamping block (9), the moving plate (14) is connected with fine tuning servo electric cylinder rods (16) of the fine tuning servo electric cylinders (6), telescopic adjustment of the moving plate (14) is achieved through the fine tuning servo electric cylinders (6), and then the fine tuning beads (11) are driven to move in a telescopic mode.
5. The system for automatically identifying and improving the roundness of the tire blank on line according to claim 4, wherein: the bottom surface of the clamping block (9) is also provided with a plurality of pricker needles (10) used for stably grabbing the tire blank, and the pricker needles (10) are fixedly arranged on the periphery of the clamping block (9).
6. The system for automatically identifying and improving the roundness of the tire blank on line according to claim 4, wherein: the forming machine host comprises a concave area control and adjustment module and a convex area control and adjustment module:
the concave area control and adjustment module controls the clamping blocks in the corresponding areas to extend to positions to be improved according to concave values, the concave values Xx are R-Rx, x belongs to m, and the extending amounts Yx are A-R-Kx Xx, wherein A is the distance from the laser sensor to the central axis of the forming drum, and Kx is a constant corresponding to the concave areas, so that directional expansion compensation of the concave areas is realized;
the convex area control and adjustment module controls the clamping block corresponding to the area to extend into a position to be improved according to the convex value, the convex value Xy belongs to Ry-R, y belongs to m, the extending amount Yy belongs to A-R, meanwhile, a fine adjustment bead at the bottom of the clamping block extends into the clamping block under the action of a fine adjustment servo electric cylinder (6), the extending amount Yy' corresponds to Ky Xy, wherein Ky is a constant corresponding to the convex area, the convex area is limited by the mechanical pressure of the fine adjustment bead in the shaping process, the whole convex area is uniformly expanded according to the outer contour limited by the fine adjustment bead, and the directional optimization of the convex area to the true circle state is realized.
7. The method for automatically identifying the roundness of the tire blank and improving the system on line according to any one of claims 1 to 6, comprising the following steps:
step 1, detecting the roundness of a tire blank to judge a concave area and a convex area of the tire blank;
step 2, directionally adjusting the roundness of the embryo:
aiming at a sunken area, controlling a clamping block of the corresponding area to extend to a position to be improved according to a sunken value, wherein the sunken value Xx is R-Rx, x belongs to m, m is the number of areas for uniformly dividing a tire blank according to an angle, and the extending amount Yx is A-R-Kx Xx so as to realize directional expansion compensation of the sunken area, wherein A is the distance from a laser sensor to a central axis of a forming drum, and Kx is a constant corresponding to the sunken area;
aiming at a convex area, controlling a clamping block of the corresponding area to extend to a position to be improved, wherein the convex value Xy is Ry-R, y belongs to m, the extending amount Yy is A-R, meanwhile, a fine tuning bead at the bottom of the clamping block extends under the action of a fine tuning servo electric cylinder, the extending amount Yy' is Ky Xy, and the directional optimization of the convex area to a true circle state is realized, wherein Ky is a constant corresponding to the convex area;
and 3, repeatedly executing the steps 1-2 until the roundness of the tire blank reaches the standard requirement.
8. The method of claim 7, wherein: in the step 2, the out-of-roundness of the green tire is detected in the following way:
(1) acquiring n groups of data in the circumferential direction of the tire through a laser sensor, and calculating an average value which is recorded as the tire blank radius R;
(2) uniformly dividing a tire blank into m regions according to angles, wherein m is the number of clamping blocks at the same time, n is an integral multiple of m, and the radii of the m regions are respectively obtained and are respectively marked as R1, R2 and … Rm;
(3) the values of R1, R2 and … Rm are compared with the radius R of the embryo to determine the concave area or convex area of the embryo and output the radius value of the corresponding area.
9. The method of claim 8, wherein: in the step 3, when the roundness of the tire blank is directionally adjusted, the following three optimization thresholds are set, and when the following three optimization thresholds are reached, the extending amount of each clamping block is locked:
(1) setting the difference between the radius of the green tire and the radius of the divided area to be less than or equal to 1.0;
(2) setting the difference value of the radiuses of any two areas to be less than or equal to 1.0;
(3) at least every 6 continuously produced tire blanks are taken as a reference, and the difference value of the radius of the area of the same area of at least 6 continuous tire blanks is less than or equal to 0.5.
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| CN111998792B (en) * | 2020-08-25 | 2022-08-26 | 赛轮集团股份有限公司 | On-line detection method and on-line detection device for tire blank out-of-roundness of tire building machine |
| CN112606281B (en) * | 2020-11-30 | 2022-07-29 | 青岛森麒麟轮胎股份有限公司 | Production control system and method for improving tire uniformity |
| CN112798182B (en) * | 2020-12-17 | 2023-05-23 | 中策橡胶集团股份有限公司 | Method for improving unbalance of tire and tire obtained by method |
| CN115946383B (en) * | 2023-03-14 | 2023-06-02 | 广饶县计量测试检定所(广饶县产品质量检验所、广饶县橡胶轮胎产品与材料质量检验中心) | Process for guaranteeing uniform extension of embryo |
| CN118548814B (en) * | 2024-07-30 | 2024-10-08 | 杭州言志机械制造有限公司 | Tyre mould measurement and control instrument |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122158A (en) * | 2010-01-07 | 2011-07-13 | 住友橡胶工业株式会社 | Monitoring system for crude tyre manufacturing device |
| CN102292626A (en) * | 2008-12-19 | 2011-12-21 | 米其林研究和技术股份有限公司 | Filtering method for improving the data quality of geometeric tire measurements |
| CN103900490A (en) * | 2014-03-24 | 2014-07-02 | 青岛泰凯英轮胎有限公司 | Device and method for detecting ovality of tyre |
| CN206623427U (en) * | 2017-04-14 | 2017-11-10 | 山东玲珑机电有限公司 | A kind of vacuum cap type transmits loop device |
| CN208101113U (en) * | 2018-03-14 | 2018-11-16 | 厦门洪海机械有限公司 | A kind of transmitting ring of safety absorption semisteel full-specification carcass |
-
2019
- 2019-08-27 CN CN201910796733.3A patent/CN110588033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102292626A (en) * | 2008-12-19 | 2011-12-21 | 米其林研究和技术股份有限公司 | Filtering method for improving the data quality of geometeric tire measurements |
| CN102122158A (en) * | 2010-01-07 | 2011-07-13 | 住友橡胶工业株式会社 | Monitoring system for crude tyre manufacturing device |
| CN103900490A (en) * | 2014-03-24 | 2014-07-02 | 青岛泰凯英轮胎有限公司 | Device and method for detecting ovality of tyre |
| CN206623427U (en) * | 2017-04-14 | 2017-11-10 | 山东玲珑机电有限公司 | A kind of vacuum cap type transmits loop device |
| CN208101113U (en) * | 2018-03-14 | 2018-11-16 | 厦门洪海机械有限公司 | A kind of transmitting ring of safety absorption semisteel full-specification carcass |
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