CN114939996A - Method and device for detecting dynamic balance of embryo - Google Patents
Method and device for detecting dynamic balance of embryo Download PDFInfo
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- CN114939996A CN114939996A CN202210415460.5A CN202210415460A CN114939996A CN 114939996 A CN114939996 A CN 114939996A CN 202210415460 A CN202210415460 A CN 202210415460A CN 114939996 A CN114939996 A CN 114939996A
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- 210000001161 mammalian embryo Anatomy 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000011265 semifinished product Substances 0.000 claims abstract description 74
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 230000008439 repair process Effects 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims description 122
- 238000012937 correction Methods 0.000 claims description 104
- 239000011159 matrix material Substances 0.000 claims description 30
- 239000000047 product Substances 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 18
- 238000010030 laminating Methods 0.000 claims description 13
- 230000001605 fetal effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
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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)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/30—Applying the layers; Guiding or stretching the layers during application
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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)
- B29D30/08—Building tyres
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/30—Applying the layers; Guiding or stretching the layers during application
- B29D2030/3064—Details, accessories and auxiliary operations not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a method and a device for detecting the dynamic balance of a embryo, comprising the following steps: a, step a: adjusting the equipment precision of the forming machine and the symmetrical precision of the center of the tread assembly; step b: when a forming machine is used for jointing semi-finished product parts, detecting the joint quantity of the semi-finished product parts, judging whether the joint quantity of the semi-finished product parts is within the range of the joint quantity of a preset part, and when judging whether the distance between the joints of the two adjacent semi-finished product parts is within the preset distance between the joints of the two adjacent semi-finished product parts, determining whether the joint quantity of the semi-finished product parts is within the preset distance between the joints of the two adjacent semi-finished product parts, and otherwise, continuing to joint the semi-finished product parts according to a judgment result until a green tire is formed after the joint operation is finished; step c: after the embryo is obtained, detecting the dynamic balance value of the embryo, and judging whether the dynamic balance value of the embryo meets the standard or not; and judging whether the positioning repair of the embryo is needed. The invention can improve the dynamic balance of the green tire in the molding process and detect the dynamic balance of the molded green tire.
Description
Technical Field
The invention relates to the field of tires, in particular to a method and a device for detecting dynamic balance of a tire blank.
Background
In the 21 st century, with the rapid development of the logistics industry in China and the continuous construction of the infrastructure of the expressway, the rapid development of the tire industry in China is promoted, so that the quality of tire production is promoted to be continuously upgraded. One of the quality indexes of the tire product upgrading, namely the dynamic balance test parameter index of the tire, must meet the national or international standard requirement. The dynamic balance of the tires not only causes the continuous vibration of the wheel shaft of the locomotive and affects the personal safety, but also affects the stability, the comfort and the like of riding. Therefore, the qualification rate index of the tire dynamic balance test is also one of the quality indexes controlled by tire manufacturing enterprises.
The dynamic balance comprises static unbalance and dynamic unbalance; static imbalance is an imbalance phenomenon in which the main axis of inertia of the tire is displaced parallel to the axis of rotation. Dynamic imbalance is an imbalance phenomenon in which the main axis of inertia of the tire is neither parallel to the axis of rotation nor intersects the center of gravity. Static unbalance amount: that is, tire mass multiplied by eccentricity of the center of gravity. Static unbalance mass: the static unbalance is divided by the correction radius. Even unbalance: the centrifugal forces with respect to the centerline of the tire form a pair of centrifugal forces that are equal in magnitude and opposite in direction and that are not in a plane, which is called a couple. That is, the passenger can feel that the vehicle is swinging during high-speed traveling of the vehicle. Dynamic unbalance: that is, a combination of static imbalance and even imbalance.
The traditional detection process includes the steps of forming a tire blank, vulcanizing, trimming and cutting wool and performing appearance inspection, and finally, the finished tire is subjected to dynamic balance detection, the period of the whole link is long, and data information fed back by the dynamic balance detection is relatively delayed. For building a first proof tire, the building equipment is typically stopped and waits until no dynamic balance test results are obtained. And if the tire is verified to have poor dynamic balance, the tire needs to be molded, reformed and adjusted again, the tire is sent again for verification, and the molding continues to wait. Therefore, the production rhythm and efficiency are influenced, and a large amount of manpower and material resources are needed for the link. If the dynamic balance detection finds that the tires are poor in batches, but the tires are formed in large quantities, no good remedial measures exist at present, and the tires can only be judged according to the detection results after vulcanization, so that more defective products are generated.
In the molding process, all the semi-product components meeting the design standard of the geometric outline are precisely and correctly combined with each other and symmetrically combined according to the distribution position requirement of each component in the tire casing product. The quality of the molding quality directly influences the dynamic balance quality of the tire product. Factors influencing the dynamic balance quality of tire products in the molding process include the joint quantity of components, the positioning distribution of joints, the center of a tread assembly, the precision of molding machine equipment, the winding tension of a crown belt and the like.
Disclosure of Invention
The invention aims to provide a method and a device for detecting the dynamic balance of a tire blank, which can realize dynamic balance detection in the molding link of the tire blank, can directly feed back the dynamic balance value of the tire blank without post-process processing such as vulcanization and the like, prevents the occurrence of poor dynamic balance, and can carry out positioning repair on the tire blank according to the detected unbalance amount and counteract the unbalance by detecting and positioning functions on the molded tire blank which is poor in occurrence; the device can be organically combined with molding equipment, does not additionally increase space, can complete a molding process, and can perform dynamic balance detection on a green tire.
In order to achieve the above object, the present invention provides a method for detecting the dynamic balance of a fetal embryo, comprising: step a: adjusting the precision of the forming machine and the symmetrical precision of the center of the tread assembly; step b: when the semi-finished product parts are jointed by the forming machine, detecting the joint quantity of the semi-finished product parts, and if the joint quantity of the semi-finished product parts is not within the preset part joint quantity range, integrally removing the current semi-finished product part and jointing the next semi-finished product part; if half goods part connects quantity when predetermineeing the part and connect quantity within range, then obtain the number of piles of the laminating layer of current half goods part, when the quantity of laminating layer increases the one deck for every time, then detect once the interval between two adjacent half goods part joints in the outside: if the distance between the joints of the two adjacent half-product parts is not within the preset distance between the joints of the two adjacent half-product parts, the current half-product part is integrally removed; if the distance between the joints of the two adjacent semi-finished product parts is within the preset distance range, continuing to perform the fitting operation on the semi-finished product parts until a green tire is formed after the fitting operation is completed; step c: after the embryo is obtained, detecting the dynamic balance value of the embryo, and judging whether the dynamic balance value of the embryo meets the standard or not; if the dynamic balance value of the embryo meets the standard, judging that the embryo quality is qualified; if the dynamic balance value of the embryo does not meet the standard, judging that the current embryo quality is unqualified, and performing positioning repair on the embryo.
In some embodiments of the application, in the step b, when the molding machine bonds the semi-finished product part, obtaining roller tension P in real time, presetting a preset roller tension matrix P0, and setting P0 (P1, P2, P3, P4), where P1 is a first preset roller tension, P2 is a second preset roller tension, P3 is a third preset roller tension, and P4 is a fourth preset roller tension, where P1 < P2 < P3 < P4; presetting a preset crown belt winding tension matrix F0, and setting F0 (F1, F2, F3 and F4), wherein F1 is a first preset crown belt winding tension, F2 is a second preset crown belt winding tension, F3 is a third preset crown belt winding tension, F4 is a fourth preset crown belt winding tension, and F1 < F2 < F3 < F4; setting the winding tension of the crown belt according to the relationship between the roller tension P and the preset roller tensions: when P is not more than P1, selecting the first preset crown band winding tension F1 as a crown band winding tension F; when P is more than P1 and less than or equal to P2, selecting the second preset crown belt winding tension F2 as a crown belt winding tension F; when P is more than P2 and less than or equal to P3, selecting the third preset crown belt winding tension F3 as a crown belt winding tension F; when P3 < P.ltoreq.P 4, the fourth preset crown band winding tension F4 is selected as the crown band winding tension F.
In some embodiments of the present application, a crown belt conveying speed V is obtained in real time, a preset crown belt conveying speed matrix V0 is preset, and for the preset crown belt conveying speed matrix V0, V0 (V1, V2, V3, V4) is set, where V1 is a first preset crown belt conveying speed, V2 is a second preset crown belt conveying speed, V3 is a third preset crown belt conveying speed, V4 is a fourth preset crown belt conveying speed, and V1 > V2 > V3 > V4; presetting a preset correction coefficient matrix ai, and setting ai (a 1, a2, a3 and a 4) for the preset correction coefficient matrix ai, wherein a1 is a first preset correction coefficient, a2 is a second preset correction coefficient, a3 is a third preset correction coefficient, a4 is a fourth preset correction coefficient, and a1 & gta 2 & gta 3 & gta 4; and selecting an ith preset correction coefficient ai according to the relation between the crown belt conveying speed V and each preset crown belt conveying speed to correct the crown belt winding force F, wherein i =1,2,3, 4: when V is larger than or equal to V1, selecting the first preset correction coefficient a1 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 1; when V1 is larger than V and is larger than or equal to V2, selecting the second preset correction coefficient a2 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 2; when V2 is larger than V and is larger than or equal to V3, selecting the third preset correction coefficient a3 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 3; and when V3 is larger than V and larger than or equal to V4, selecting the fourth preset correction coefficient a4 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 4.
In some embodiments of the present application, a clamping amount H of a clamping ring is obtained in real time, a preset clamping amount matrix H0 of the clamping ring is preset, and for the preset clamping amount matrix H0 of the clamping ring, H0 (H1, H2, H3, H4) is set, where H1 is a first preset clamping amount of the clamping ring, H2 is a second preset clamping amount of the clamping ring, H3 is a third preset clamping amount of the clamping ring, H4 is a fourth preset clamping amount of the clamping ring, and H1 < H2 < H3 < H4; a preset secondary correction coefficient matrix bj is also preset, and bj (b 1, b2, b3, b 4) is set for the preset correction coefficient matrix bj, wherein j =1,2,3,4, b1 is a first preset secondary correction coefficient, b2 is a second preset secondary correction coefficient, b3 is a third preset secondary correction coefficient, b4 is a fourth preset secondary correction coefficient, and b1 < b2 < b3 < b 4; when the ith preset correction coefficient ai is selected to correct the winding force F of the crown belt, the jth preset secondary correction coefficient bj is selected to correct the winding force F of the crown belt after correction according to the relation between the clamping amount H of the clamping ring and the clamping amount of each preset clamping ring, wherein j =1,2,3, 4: when H is not more than H1, selecting the first preset secondary correction coefficient b1 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 1; when H1 is more than or equal to H2, selecting the second preset secondary correction coefficient b2 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 2; when H2 is more than or equal to H3, selecting the third preset secondary correction coefficient b3 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 3; and when H3 is more than H and less than or equal to H4, selecting the fourth preset secondary correction coefficient b4 to perform secondary correction on the corrected crown tape winding force F, wherein the crown tape winding force after secondary correction is F ai b 4.
In some embodiments of the present application, in step b, the position of each semi-manufactured part is determined according to the tyre specifications; determining whether each semi-finished product part deviates according to the linear light source sensor; if not, continuing; if the deviation is detected, the deviation correcting device is controlled to automatically correct the deviation of the tire side.
In order to achieve the above object, the present invention further provides a device for detecting the dynamic balance of a green tire, the device comprising: the semi-finished product part joint detection module is used for detecting the joint quantity of the semi-finished product part when the semi-finished product part is jointed by the forming machine, and if the joint quantity of the semi-finished product part is not within the preset part joint quantity range, the current semi-finished product part is integrally removed, and the next semi-finished product part is jointed; if half goods part connects quantity when predetermineeing the part and connect quantity within range, then obtain the number of piles of the laminating layer of current half goods part, when the quantity of laminating layer increases the one deck for every time, then detect once the interval between two adjacent half goods part joints in the outside: if the distance between the joints of the two adjacent half-product parts is not within the preset distance between the joints of the two adjacent half-product parts, the current half-product part is integrally removed; and if the distance between the joints of the two adjacent semi-finished product parts is within the preset distance range, continuing to perform the fitting operation on the semi-finished product parts until the green tire is formed after the fitting operation is completed.
In some embodiments of the present application, the apparatus further includes a semi-finished product component crown tape winding tension detecting module, configured to set crown tape winding tension according to a relationship between the roller tension P and each preset roller tension when the molding machine is applied to the semi-finished product component; selecting an ith preset correction coefficient ai according to the relation between the crown belt conveying speed V and each preset crown belt conveying speed to correct the crown belt winding force F; and when the ith preset correction coefficient ai is selected to correct the winding force F of the crown belt, selecting the jth preset secondary correction coefficient bj according to the relation between the clamping amount H of the clamping ring and the clamping amount of each preset clamping ring to perform secondary correction on the corrected winding force F ai of the crown belt.
In some embodiments of the present application, a device for detecting a dynamic balance of a green tire is used for detecting a dynamic balance value of the green tire after the green tire is obtained, and determining whether the dynamic balance value of the green tire meets a standard; if the dynamic balance value of the embryo meets the standard, judging that the embryo quality is qualified; if the dynamic balance value of the embryo does not meet the standard, judging that the current embryo quality is unqualified, and performing positioning repair on the embryo.
In some embodiments of the present application, a semi-manufactured part position correction module is further included for determining a position of each semi-manufactured part based on the tire gauge; determining whether each semi-finished product part deviates according to the linear light source sensor; if not, continuing; if the deviation is detected, the deviation correcting device is controlled to automatically correct the deviation of the tire side.
In some embodiments of the present application, the embryo dynamic balance detecting module of the formed embryo comprises: the device comprises a case, a main shaft is arranged in the case, a forming drum is arranged at one end of the main shaft, and the forming drum is used for placing a green tire; the other end of the main shaft is connected with the servo motor through the transmission system; a dynamic balance sensor assembly is arranged on the main shaft; the control box is installed on the case and electrically connected with the servo motor and the dynamic balance sensor assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a flow chart of a method for detecting fetal dynamic balance according to an embodiment of the present invention;
FIG. 2 is a schematic view of an apparatus for detecting the dynamic balance of a tire blank according to an embodiment of the present invention;
FIG. 3 is a schematic view of an apparatus for detecting a dynamic balance of a green tire of a formed green tire according to an embodiment of the present invention;
wherein, 1, a embryo; 2. a forming drum; 3. a control box; 4. a chassis; 5. a servo motor; 6. a transmission system; 7. a dynamic balance sensor assembly; 8. a main shaft.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1, the present embodiment provides a method for detecting a dynamic balance of a embryo for achieving the above object, comprising: step a: adjusting the precision of the forming machine and the symmetrical precision of the center of the tread assembly; step b: when the semi-finished product parts are jointed by the forming machine, detecting the joint quantity of the semi-finished product parts, and if the joint quantity of the semi-finished product parts is not within the preset part joint quantity range, integrally removing the current semi-finished product part and jointing the next semi-finished product part; if half goods part connects quantity when predetermineeing the part and connect quantity within range, then obtain the number of piles of the laminating layer of current half goods part, when the quantity of laminating layer increases the one deck for every time, then detect once the interval between two adjacent half goods part joints in the outside: if the distance between the joints of the two adjacent half-product parts is not within the preset distance between the joints of the two adjacent half-product parts, the current half-product part is integrally removed; if the distance between the joints of the two adjacent semi-finished product parts is within the preset distance range, continuing to perform the fitting operation on the semi-finished product parts until a green tire is formed after the fitting operation is completed; step c: after the embryo is obtained, detecting the dynamic balance value of the embryo, and judging whether the dynamic balance value of the embryo meets the standard or not; if the dynamic balance value of the embryo meets the standard, judging that the embryo quality is qualified; if the dynamic balance value of the embryo does not meet the standard, judging that the current embryo quality is unqualified, and performing positioning repair on the embryo.
It will be appreciated that the above described embodiments improve the dynamic balance of the tire by ensuring the symmetry of the center of the tread assembly, the precision of the building machine equipment;
the semi-finished product component of the above embodiment is a semi-finished product component, such as an inner liner, a ply, a sidewall, etc. of a tire; the size of the joint of the semi-finished product part has a particularly large influence on the dynamic balance, and the joint of the general part is required to be as small as possible on the premise of not separating; because the unreasonable positioning distribution of joints easily causes the joints to be excessively concentrated and the dynamic balance of the tire is affected, the dynamic balance quality of the tire is improved by presetting the distance between the joints of two adjacent product parts, and the distance between the two joints is more than 100mm in the production process.
In a specific embodiment of the present application, in step b, when the molding machine bonds the semi-finished product part, obtaining a roller tension P in real time, presetting a preset roller tension matrix P0, and setting P0 (P1, P2, P3, P4), where P1 is a first preset roller tension, P2 is a second preset roller tension, P3 is a third preset roller tension, and P4 is a fourth preset roller tension, where P1 < P2 < P3 < P4; presetting a preset crown belt winding tension matrix F0, and setting F0 (F1, F2, F3 and F4), wherein F1 is a first preset crown belt winding tension, F2 is a second preset crown belt winding tension, F3 is a third preset crown belt winding tension, F4 is a fourth preset crown belt winding tension, and F1 < F2 < F3 < F4; setting the winding tension of the crown belt according to the relationship between the roller tension P and the preset roller tensions: when P is not more than P1, selecting the first preset crown band winding tension F1 as a crown band winding tension F; when P is more than P1 and less than or equal to P2, selecting the second preset crown belt winding tension F2 as a crown belt winding tension F; when P is more than P2 and less than or equal to P3, selecting the third preset crown belt winding tension F3 as a crown belt winding tension F; when P3 < P.ltoreq.P 4, the fourth preset crown band winding tension F4 is selected as the crown band winding tension F.
It can be understood that improper tensile deformation of the semi-finished parts during fitting can affect the dynamic balance of the tire, and during fitting of the parts, the building drum is started and stopped, the middle part of the building drum needs to rotate at a constant speed, and the inner liner, the carcass ply, the sidewall and the like are uniformly and non-tensilely fitted; in the embodiment, the winding tension F of the crown belt is set according to the relationship between the tension P of the roller and the tension of each preset roller, so that the tensile deformation can be well controlled by setting the winding tension of the crown belt, and the occurrence of poor dynamic balance is reduced.
In a specific embodiment of the present application, a crown belt conveying speed V is obtained in real time, a preset crown belt conveying speed matrix V0 is preset, and for the preset crown belt conveying speed matrix V0, V0 (V1, V2, V3, V4) is set, where V1 is a first preset crown belt conveying speed, V2 is a second preset crown belt conveying speed, V3 is a third preset crown belt conveying speed, V4 is a fourth preset crown belt conveying speed, and V1 > V2 > V3 > V4; presetting a preset correction coefficient matrix ai, and setting ai (a 1, a2, a3 and a 4) for the preset correction coefficient matrix ai, wherein a1 is a first preset correction coefficient, a2 is a second preset correction coefficient, a3 is a third preset correction coefficient, a4 is a fourth preset correction coefficient, and a1 & gta 2 & gta 3 & gta 4; and selecting an ith preset correction coefficient ai according to the relation between the crown belt conveying speed V and each preset crown belt conveying speed to correct the crown belt winding force F, wherein i =1,2,3, 4: when V is larger than or equal to V1, selecting the first preset correction coefficient a1 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 1; when V1 is larger than V and is larger than or equal to V2, selecting the second preset correction coefficient a2 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 2; when V2 is larger than V and is larger than or equal to V3, selecting the third preset correction coefficient a3 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 3; and when V3 is larger than V and larger than or equal to V4, selecting the fourth preset correction coefficient a4 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 4.
It is understood that the above embodiment can further improve the accuracy of the crown tape winding force F by selecting the ith preset correction coefficient ai to correct the crown tape winding force F according to the relationship between the crown tape conveying speed V and each preset crown tape conveying speed.
In a specific embodiment of the application, a clamping amount H of a clamping ring is obtained in real time, a preset clamping amount matrix H0 of the clamping ring is preset, and for a preset clamping amount matrix H0 of the clamping ring, H0 (H1, H2, H3, H4) is set, where H1 is a first preset clamping amount of the clamping ring, H2 is a second preset clamping amount of the clamping ring, H3 is a third preset clamping amount of the clamping ring, H4 is a fourth preset clamping amount of the clamping ring, and H1 < H2 < H3 < H4; a preset secondary correction coefficient matrix bj is also preset, and bj (b 1, b2, b3, b 4) is set for the preset correction coefficient matrix bj, wherein j =1,2,3,4, b1 is a first preset secondary correction coefficient, b2 is a second preset secondary correction coefficient, b3 is a third preset secondary correction coefficient, b4 is a fourth preset secondary correction coefficient, and b1 < b2 < b3 < b 4; and when the ith preset correction coefficient ai is selected to correct the winding force F of the crown belt, selecting the jth preset secondary correction coefficient bj to perform secondary correction on the corrected winding force F ai of the crown belt according to the relationship between the clamping ring clamping amount H and each preset clamping ring clamping amount, wherein j =1,2,3, 4: when H is not more than H1, selecting the first preset secondary correction coefficient b1 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 1; when H1 is more than or equal to H2, selecting the second preset secondary correction coefficient b2 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 2; when H2 is more than or equal to H3, selecting the third preset secondary correction coefficient b3 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 3; and when H3 is more than or equal to H4, selecting the fourth preset secondary correction coefficient b4 to perform secondary correction on the corrected crown belt winding force F, wherein the secondary corrected crown belt winding force is F ai b 4.
It can be understood that, in the above embodiment, after the ith preset correction coefficient ai is selected to correct the crown band winding force F, the jth preset secondary correction coefficient bj is selected according to the relationship between the clamping ring tightening amount H and each preset clamping ring tightening amount to perform secondary correction on the corrected crown band winding force F _ ai, so that the accuracy of the crown corrected band winding force F can be improved again.
In a particular embodiment of the present application, in step b, the position of each semifinished part is determined according to the tyre specifications; determining whether each semi-finished product part deviates according to the linear light source sensor; if not, continuing; if the deviation is detected, the deviation correcting device is controlled to automatically correct the deviation of the tire side.
It can be understood that, in the tire forming process, the fitting and positioning accuracy of each semi-finished product part is one of the key factors influencing the tire quality, and the dynamic balance of the tire can be improved by improving the position precision of the tire.
As shown in fig. 2, based on the same technical concept, the present embodiment further provides an apparatus for detecting dynamic balance of a tire blank, the apparatus comprising: the semi-finished product part joint detection module is used for detecting the joint quantity of the semi-finished product part when the semi-finished product part is jointed by the forming machine, and if the joint quantity of the semi-finished product part is not within the preset part joint quantity range, the current semi-finished product part is integrally removed, and the next semi-finished product part is jointed; if half goods part connects quantity when predetermineeing the part and connect quantity within range, then obtain the number of piles of the laminating layer of current half goods part, when the quantity of laminating layer increases the one deck for every time, then detect once the interval between two adjacent half goods part joints in the outside: if the distance between the joints of the two adjacent half-product parts is not within the preset distance between the joints of the two adjacent half-product parts, the current half-product part is integrally removed; and if the distance between the joints of the two adjacent semi-finished product parts is within the preset distance range, continuing to perform the fitting operation on the semi-finished product parts until the green tire is formed after the fitting operation is completed.
In a specific embodiment of the application, the device further comprises a semi-finished product component crown tape winding tension detection module, which is used for setting crown tape winding tension according to the relationship between the roller tension P and each preset roller tension when the forming machine is used for attaching the semi-finished product component; selecting an ith preset correction coefficient ai according to the relation between the crown belt conveying speed V and each preset crown belt conveying speed to correct the crown belt winding force F; and when the ith preset correction coefficient ai is selected to correct the winding force F of the crown belt, selecting the jth preset secondary correction coefficient bj according to the relationship between the clamping ring clamping amount H and each preset clamping ring clamping amount to perform secondary correction on the corrected winding force F ai of the crown belt.
In a specific embodiment of the present application, the device for detecting the dynamic balance of the green tire is used for detecting the dynamic balance value of the green tire after the green tire is obtained, and determining whether the dynamic balance value of the green tire meets the standard; if the dynamic balance value of the embryo meets the standard, judging that the embryo quality is qualified; if the dynamic balance value of the embryo does not meet the standard, judging that the current embryo quality is unqualified, and performing positioning repair on the embryo.
In a particular embodiment of the present application, the tire further comprises a semi-manufactured part position correction module for determining the position of each semi-manufactured part according to the tire specification; determining whether each semi-finished product part deviates according to the linear light source sensor; if not, continuing; if the deviation is detected, the deviation correcting device is controlled to automatically correct the deviation of the tire side.
In one embodiment of the present application, as shown in fig. 3, the embryo dynamic balance detecting module of the formed embryo comprises: the device comprises a case 4, wherein a main shaft 8 is installed in the case, one end of the main shaft 8 is provided with a forming drum 2, and the forming drum 2 is used for placing a green tire 1; the other end of the main shaft 8 is connected with the servo motor 5 through the transmission system 6; a dynamic balance sensor assembly 7 is arranged on the main shaft 8; the control box 3 is installed on the case 4, and the control box 3 is electrically connected with the servo motor 5 and the dynamic balance sensor assembly 7.
It can be understood that the forming drum 2 of the above embodiment is divided into a left part and a right part, the end surfaces of the left and the right forming drums are parallel and can be mutually translated left and right, and the forming drum 2 has the requirements of perpendicularity and coaxiality. The green tire 1 is placed on a forming drum 2 and enters a state to be detected through the continuous links of automatic ring locking, inflation and shaping. A embryo dynamic balance detection mode is selected through the control box 3, the servo motor 5 in the case 4 drives the main shaft 8 to rotate rapidly through the transmission system 6 for measurement, the dynamic balance sensor assembly 7 is installed on the main shaft 8, the dynamic balance sensor assembly 7 can detect mechanical signals generated when the embryo 1 is shaped and inflated to rotate, and detection results are displayed on a screen of the control box 3 through data processing. The detection result contains dynamic balance numerical value (angle), static balance numerical value (angle), couple balance numerical value (angle) and the like of the left side and the right side of the green tyre, and the phase angle of the main shaft 8 can be seen on the screen of the control box 3, and the unbalanced position of the green tyre 1 can be automatically positioned by selecting a positioning function.
It can be understood that, the above embodiments are organically combined with the molding equipment, so that one equipment can be molded and detected without additionally increasing space, and the cost is saved. The dynamic unbalance detection device can be used for conveniently repairing the positions of the green tires needing to be positioned and repaired by workers according to the detected dynamic unbalance, and offsetting the dynamic unbalance.
In conclusion, the invention discloses a method and a device for detecting the dynamic balance of a tire blank, which can realize dynamic balance detection in the molding link of the tire blank, can directly feed back the dynamic balance value of the tire blank without post-process processing such as vulcanization and the like, prevent the occurrence of poor dynamic balance, and can carry out positioning repair on the tire blank according to the detected unbalance amount and counteract the unbalance by detecting and positioning functions on the molded tire blank which is poor in occurrence; the device can be organically combined with molding equipment, and the space is not additionally increased, so that the molding process can be completed, and the dynamic balance detection of the green tire can be carried out.
It should be understood that, although the steps in the flowcharts of the embodiments of the present invention are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a portion of the steps in various embodiments may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
Those of ordinary skill in the art will understand that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of detecting embryo dynamic balance, comprising:
step a: adjusting the precision of the forming machine and the symmetrical precision of the center of the tread assembly;
step b: when the semi-finished product parts are jointed by the forming machine, detecting the joint quantity of the semi-finished product parts, and if the joint quantity of the semi-finished product parts is not within the preset part joint quantity range, integrally removing the current semi-finished product part and jointing the next semi-finished product part;
if half goods part connects quantity when predetermineeing the part and connect quantity within range, then obtain the number of piles of the laminating layer of current half goods part, when the quantity of laminating layer increases the one deck for every time, then detect once the interval between two adjacent half goods part joints in the outside:
if the distance between the joints of the two adjacent half product parts is not within the preset distance between the joints of the two adjacent half product parts, the current half product part is removed integrally;
if the distance between the joints of the two adjacent semi-finished product parts is within the preset distance range, continuing to perform the fitting operation on the semi-finished product parts until a green tire is formed after the fitting operation is completed;
step c: after the embryo is obtained, detecting the dynamic balance value of the embryo, and judging whether the dynamic balance value of the embryo meets the standard or not; if the dynamic balance value of the embryo meets the standard, judging that the embryo quality is qualified; if the dynamic balance value of the embryo does not meet the standard, judging that the current embryo quality is unqualified, and performing positioning repair on the embryo.
2. The method for detecting fetal dynamic balance of claim 1,
in step b, when the molding machine is used for laminating the semi-finished product parts, acquiring roller tension P in real time, presetting a preset roller tension matrix P0, and setting P0 (P1, P2, P3 and P4), wherein P1 is a first preset roller tension, P2 is a second preset roller tension, P3 is a third preset roller tension, and P4 is a fourth preset roller tension, wherein P1 < P2 < P3 < P4; presetting a preset crown belt winding tension matrix F0, and setting F0 (F1, F2, F3 and F4), wherein F1 is a first preset crown belt winding tension, F2 is a second preset crown belt winding tension, F3 is a third preset crown belt winding tension, F4 is a fourth preset crown belt winding tension, and F1 < F2 < F3 < F4;
setting the winding tension of the crown belt according to the relationship between the roller tension P and the preset roller tensions:
when P is not more than P1, selecting the first preset crown band winding tension F1 as a crown band winding tension F;
when P is more than P1 and less than or equal to P2, selecting the second preset crown belt winding tension F2 as a crown belt winding tension F;
when P is more than P2 and less than or equal to P3, selecting the third preset crown belt winding tension F3 as a crown belt winding tension F;
when P3 < P.ltoreq.P 4, the fourth preset crown band winding tension F4 is selected as the crown band winding tension F.
3. The method and process of claim 2 wherein the step of applying a film to the liner includes the step of applying a film to the liner,
acquiring a crown belt conveying speed V in real time, presetting a preset crown belt conveying speed matrix V0, and setting V0 (V1, V2, V3 and V4) for the preset crown belt conveying speed matrix V0, wherein V1 is a first preset crown belt conveying speed, V2 is a second preset crown belt conveying speed, V3 is a third preset crown belt conveying speed, V4 is a fourth preset crown belt conveying speed, and V1 is more than V2, more than V3 and more than V4; presetting a preset correction coefficient matrix ai, and setting ai (a 1, a2, a3 and a 4) for the preset correction coefficient matrix ai, wherein a1 is a first preset correction coefficient, a2 is a second preset correction coefficient, a3 is a third preset correction coefficient, a4 is a fourth preset correction coefficient, and a1 & gta 2 & gta 3 & gta 4;
and selecting an ith preset correction coefficient ai according to the relation between the crown belt conveying speed V and each preset crown belt conveying speed to correct the crown belt winding force F, wherein i =1,2,3, 4:
when V is larger than or equal to V1, selecting the first preset correction coefficient a1 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 1;
when V1 is larger than V and is larger than or equal to V2, selecting the second preset correction coefficient a2 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 2;
when V2 is larger than V and is larger than or equal to V3, selecting the third preset correction coefficient a3 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 3;
and when V3 is larger than V and larger than or equal to V4, selecting the fourth preset correction coefficient a4 to correct the winding force F of the crown belt, wherein the corrected winding force F of the crown belt is F a 4.
4. The method for detecting the dynamic balance of the embryo according to claim 3, wherein the clamping amount H of the clamping ring is obtained in real time, a preset clamping amount matrix H0 is preset, and for the preset clamping amount matrix H0, H0 (H1, H2, H3, H4) is set, wherein H1 is a first preset clamping amount of the clamping ring, H2 is a second preset clamping amount of the clamping ring, H3 is a third preset clamping amount of the clamping ring, H4 is a fourth preset clamping amount of the clamping ring, and H1 < H2 < H3 < H4; a preset secondary correction coefficient matrix bj is also preset, and bj (b 1, b2, b3, b 4) is set for the preset correction coefficient matrix bj, wherein j =1,2,3,4, b1 is a first preset secondary correction coefficient, b2 is a second preset secondary correction coefficient, b3 is a third preset secondary correction coefficient, b4 is a fourth preset secondary correction coefficient, and b1 < b2 < b3 < b 4;
and when the ith preset correction coefficient ai is selected to correct the winding force F of the crown belt, selecting the jth preset secondary correction coefficient bj to perform secondary correction on the corrected winding force F ai of the crown belt according to the relationship between the clamping ring clamping amount H and each preset clamping ring clamping amount, wherein j =1,2,3, 4:
when H is not more than H1, selecting the first preset secondary correction coefficient b1 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 1;
when H1 is more than or equal to H2, selecting the second preset secondary correction coefficient b2 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 2;
when H2 is more than or equal to H3, selecting the third preset secondary correction coefficient b3 to perform secondary correction on the corrected crown belt winding force F ai, wherein the secondary corrected crown belt winding force is F ai b 3;
and when H3 is more than or equal to H4, selecting the fourth preset secondary correction coefficient b4 to perform secondary correction on the corrected crown belt winding force F, wherein the secondary corrected crown belt winding force is F ai b 4.
5. Method for detecting the dynamic balance of a embryo according to claim 1, wherein in step b, the position of each semifinished part is determined according to the tyre specifications; determining whether each semi-finished product part deviates or not according to the linear light source sensor; if not, continuing; if the deviation is detected, the deviation correcting device is controlled to automatically correct the deviation of the tire side.
6. An apparatus for detecting embryo kinetic balance according to any of claims 1-5, characterized in that it comprises:
the semi-finished product part joint detection module is used for detecting the joint quantity of the semi-finished product part when the semi-finished product part is jointed by the forming machine, and if the joint quantity of the semi-finished product part is not within the preset part joint quantity range, the current semi-finished product part is integrally removed, and the next semi-finished product part is jointed;
if half goods part connects quantity when predetermineeing the part and connect quantity within range, then acquire the number of piles of the laminating layer of current half goods part, when the quantity of laminating layer increases the one deck for every time, then detect once the interval between two adjacent half goods part joints in the outside:
if the distance between the joints of the two adjacent half-product parts is not within the preset distance between the joints of the two adjacent half-product parts, the current half-product part is integrally removed;
and if the distance between the joints of the two adjacent semi-finished product parts is within the preset distance range, continuing to perform the fitting operation on the semi-finished product parts until the green tire is formed after the fitting operation is completed.
7. The apparatus for detecting fetal dynamic balance of claim 6,
the semi-finished product component crown belt winding tension detection module is used for setting crown belt winding tension according to the relationship between the roller tension P and each preset roller tension when the forming machine is attached to the semi-finished product component; selecting an ith preset correction coefficient ai according to the relation between the crown belt conveying speed V and each preset crown belt conveying speed to correct the crown belt winding force F; and when the ith preset correction coefficient ai is selected to correct the winding force F of the crown belt, selecting the jth preset secondary correction coefficient bj according to the relationship between the clamping ring clamping amount H and each preset clamping ring clamping amount to perform secondary correction on the corrected winding force F ai of the crown belt.
8. The apparatus for detecting fetal dynamic balance of claim 6,
the device for detecting the dynamic balance of the formed embryo is used for detecting the dynamic balance value of the embryo after the embryo is obtained and judging whether the dynamic balance value of the embryo meets the standard or not; if the dynamic balance value of the tire blank meets the standard, judging that the tire blank is qualified in quality; if the dynamic balance value of the embryo does not meet the standard, judging that the current embryo quality is unqualified, and performing positioning repair on the embryo.
9. The apparatus for detecting fetal dynamic balance of claim 6,
the semi-finished product component position correcting module is used for determining the position of each semi-finished product component according to the tire specification; determining whether each semi-finished product part deviates according to the linear light source sensor; if not, continuing; if the deviation is detected, the deviation correcting device is controlled to automatically correct the deviation of the tire side.
10. The apparatus for detecting embryo dynamic balance of claim 8, wherein the embryo dynamic balance detecting module of the formed embryo comprises: the tire blank forming machine comprises a machine case, wherein a main shaft is arranged in the machine case, one end of the main shaft is provided with a forming drum, and the forming drum is used for placing a tire blank; the other end of the main shaft is connected with the servo motor through the transmission system; a dynamic balance sensor assembly is arranged on the main shaft; the control box is installed on the case and electrically connected with the servo motor and the dynamic balance sensor assembly.
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| CN202210415460.5A CN114939996B (en) | 2022-04-20 | 2022-04-20 | Method and device for detecting dynamic balance of embryo |
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| CN202210415460.5A CN114939996B (en) | 2022-04-20 | 2022-04-20 | Method and device for detecting dynamic balance of embryo |
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