CN114103201A - Production method for improving performance of bead part of rigid-block tire - Google Patents
Production method for improving performance of bead part of rigid-block tire Download PDFInfo
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- CN114103201A CN114103201A CN202210096714.1A CN202210096714A CN114103201A CN 114103201 A CN114103201 A CN 114103201A CN 202210096714 A CN202210096714 A CN 202210096714A CN 114103201 A CN114103201 A CN 114103201A
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- tire
- bead part
- turn
- rigid
- steel wire
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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
- B29D30/005—General arrangement or lay-out of plants for the processing of tyres or parts thereof
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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
- B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
-
- 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
- B29D30/32—Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores
-
- 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
- B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
- B29D2030/0066—Tyre quality control during manufacturing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention discloses a production method for improving the performance of a bead part of a rigid-clamped tire, and belongs to the technical field of engineering machinery tires. The technical scheme is as follows: in the step of forming a tire blank, the gluing of a rubber protector, a tire bead cushion rubber, an airtight layer, a transition layer, a tire body, a gluing sheet, a steel wire ring, a cushion rubber and a belted layer is sequentially carried out, then the tire body is turned up and pressed, then the tire side component is glued, and the turning up and pressing of the tire side component are carried out after the gluing is finished. The invention reduces the deformation of the steel wire of the finished tire carcass from the production process, improves the quality of the steel wire of the steel tire bead part, effectively reduces the abnormal stress of the bead part in the use process of the tire, improves the performance of the tire bead part and avoids the delamination of the early bead part.
Description
Technical Field
The invention relates to the technical field of engineering machinery tires, in particular to a production method for improving the performance of a bead part of a rigid-clamped tire.
Background
The existing mining rigid-clamped tire has the quality problems of unstable turn-up height and levelness of a tire body steel wire in the manufacturing process, so that the turn-up height and levelness of the produced finished tire body are fluctuated. And the prior factory inspection technology for finished tires by domestic factories has defects, and products with steel wire turn-up height lower than the design requirement cannot be effectively identified and controlled in time, so that the quality problem of early tire bead delamination frequently occurs in the market use process of the products.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method overcomes the defects of the prior art, provides a production method for improving the performance of the steel-clamped tire bead part, reduces the deformation of the steel wires wrapped in the turn of the finished tire carcass from the production process, improves the quality of the steel wires wrapped in the turn of the steel tire bead part, effectively reduces the abnormal stress of the tire bead part in the using process due to the deformation or low height of the steel wires wrapped in the turn, improves the performance of the tire bead part, and avoids the delamination of the early-stage bead part.
The technical scheme of the invention is as follows:
a production method for improving the performance of a rigid-block tire bead part comprises the steps of sequentially gluing a rubber protection layer, a tire bead cushion rubber, an air tight layer, a transition layer, a tire body, a rubber coating, a steel wire ring, a cushion rubber and a belted layer in a tire blank forming procedure, then performing tire body turn-up, performing tire body turn-up lamination, then performing tire side part lamination, and performing turn-up and lamination of the tire side part after the lamination is finished.
Preferably, the carcass turn-up height is checked after the carcass turn-up and before stitching: irradiating a marking to the tire body by using a red light linear laser, setting the position of the marking as the theoretical position of the reverse wrapping end point of the steel wire of the tire body, and then measuring the distance between the position of the marking on the tire body and the actual reverse wrapping end point of the steel wire of the tire body; and comparing the distance with a first preset standard to judge whether the tire body turn-up height is qualified or not.
Preferably, the first preset criterion is: and judging the tyre body to be normal when the distance between the marked line position on the tyre body and the actual steel wire turn-up end point of the tyre body is +/-5-10 mm.
Preferably, before the finished tire leaves the factory, the tire body turn-up height is checked: manufacturing two metal rings with the same diameter as the lower edges of the turn-up end protection platforms at the tire side parts, and respectively fixing the metal rings at the positions of the turn-up end protection platforms at the two sides of the tire; and moving the tire fixed with the metal ring to an X-ray inspection machine for detection, displaying the metal ring in an image of the X-ray inspection machine in a marking line form after detection, measuring the distance between the marking line displayed by the metal ring in the image and an actual tire body steel wire turn-up end point, and comparing the distance with a first preset standard to judge whether the tire body turn-up height is qualified.
Preferably, the X-ray inspection machine performs image distortion inspection at the tire bead portion: respectively fixing a metal triangular plate at the positions of the two side walls of the tire, which correspond to the turn-up end points of the steel wires of the tire body, and moving the tire fixed with the metal triangular plates to an X-ray inspection machine for detection; and measuring the angles of all angles of a triangle formed by the metal triangular plate in the image of the X-ray inspection machine, comparing the angles with the angles of the metal triangular plate, if the fluctuation tolerance meets a second preset standard, judging that the image of the X-ray inspection machine at the tire ring part is not distorted, otherwise, judging that the image is distorted, and adjusting and calibrating the X-ray inspection machine.
Preferably, the second preset standard is that the fluctuation tolerance is less than or equal to 1.5 degrees.
Preferably, the metal triangular plate is a metal right-angle triangular plate.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention can reduce the deformation of the steel wire of the finished tire carcass from the production process, improve the quality of the steel wire of the steel-clamped tire bead part, effectively reduce the abnormal stress of the bead part in the use process of the tire caused by the deformation or low turn-up height of the steel wire of the turned-up tire carcass, improve the performance of the bead part of the tire and avoid the delamination of the early bead part.
2. According to the invention, after the tire body is turned over and before the tire body is pressed, the red light linear laser is adopted to check and confirm the turn-over height of the tire body, and the tire is preliminarily checked in the molding stage of the tire blank, so that problems can be found in time and reworked, and the cost is greatly saved.
3. The invention can carry out the inspection of the turn-up height of the finished tire before leaving the factory through the X-ray inspection machine, thereby improving the inspection capability of the quality of the finished tire bead part of the tire and reducing the quality problem of early delamination of the tire bead part flowing into the market.
Detailed Description
Example 1
In the step of forming the green tire, the original attaching sequence is as follows: and attaching the tire side, the rubber protector, the tire bead cushion rubber, the air-tight layer, the transition layer, the tire body, the rubber coating, the steel wire ring, the cushion rubber and the belted layer, then performing the turn-up of the tire body and the tire side component together, and performing the operations of pressing, tread winding and the like after the turn-up. Therefore, the tire side and components such as the tire body, the inner liner and the like are turned up together, and the problem that the tire body root is not turned up in the turning up process is caused because the thickness of the whole component is too large, so that the deformation of the tire body turning up steel wire is caused.
While the present embodiment adjusts the order of application of the sidewall components: sequentially attaching protective rubber, tire bead cushion rubber, an air-tight layer, a transition layer, a tire body, a rubber piece, a steel wire ring, cushion rubber and an upper belted layer, then turning up the tire body, turning up and pressing the tire body, then attaching a tire side component (note: the component is positioned and kept unchanged), and turning up and pressing the tire side component after the attaching is finished. The two-step operation is divided into in the laminating process, the tire body is reversely wrapped in advance, the tire side is reversely wrapped independently, and the problem that the root of the tire body is not really wrapped in a reverse manner is solved. After the adjustment of the process steps, the tire is detected by using an X-ray inspection machine, so that the deformation of the steel wires wrapped reversely on the finished tire carcass can be reduced to less than or equal to 3 from 6-7, the abnormal stress of the rim part in the using process of the tire is effectively reduced from the production process, the performance of the rim part of the tire is improved, and the delamination of the rim part at the early stage is avoided.
Example 2
On the basis of the embodiment 1, the height of the turned tire body is checked before pressing after turning the tire body, and the method comprises the following steps: irradiating a marking to the tire body by using a red light linear laser, setting the position of the marking as the theoretical position of the reverse wrapping end point of the steel wire of the tire body, and then measuring the distance between the position of the marking on the tire body and the actual reverse wrapping end point of the steel wire of the tire body; and comparing the distance with a first preset standard to judge whether the tire body turn-up height is qualified or not. The first preset standard can be used for setting parameters according to the design of tire products of various specifications, and preferably the first preset standard is as follows: and judging the tyre body to be normal when the distance between the marked line position on the tyre body and the actual steel wire turn-up end point of the tyre body is +/-5-10 mm.
Confirm in advance the tire body turn-up height, can in time discover and do over again to surpassing the tire of preset standard one, be convenient for in time discover the problem, practice thrift the cost.
Example 3
On the basis of the embodiment 2, before the finished tire leaves the factory, the height of the turned tire body is checked: two metal rings (such as iron wire circles) with the same diameter as the lower edge of the turn-up end protection platforms at the tire side parts are manufactured, and the metal rings are respectively fixed at the positions of the turn-up end protection platforms at the two sides of the tire by using fixing devices such as adhesive tapes or magnets, so that the metal rings are prevented from displacing or falling off in the inspection process, and the inspection and the final judgment result are prevented from being influenced; the tire fixed with the metal ring is moved to an X-ray inspection machine (the COLLMANN 2836 tire X-ray inspection machine is used in the embodiment) for detection, after detection, the metal ring is displayed in an image of the X-ray inspection machine in a marking form, the distance between the marking displayed by the metal ring in the image and an actual tire body steel wire turn-up end point is measured, and the distance is compared with a first preset standard to judge whether the tire body turn-up height is qualified. The first preset standard can be manually set according to actual production needs.
During measurement, the distance between the actual tire body steel wire turn-up end point and the metal ring can be measured by using a virtual ruler provided by the system, the actual distance can also be measured by using a real ruler, and the actual distance can be calculated according to the known image amplification ratio.
The inspection in this embodiment is to once confirm the turn-up height of the carcass before the delivery of the finished tire, so as to ensure that the finished tire is qualified when delivered.
Example 4
On the basis of example 3, the X-ray inspection machine performs image distortion inspection at the tire bead portion: respectively fixing a metal triangular plate at the positions of the two side walls of the tire, which correspond to the turn-up end points of the steel wires of the tire body, and moving the tire fixed with the metal triangular plates to an X-ray inspection machine for detection; and measuring the angles of all angles of a triangle formed by the metal triangular plate in the image of the X-ray inspection machine, comparing the angles with the angles of the metal triangular plate, if the fluctuation tolerance meets a second preset standard, judging that the image of the X-ray inspection machine at the tire ring part is not distorted, otherwise, judging that the image is distorted, and adjusting and calibrating the X-ray inspection machine. Preferably, the second preset standard is that the fluctuation tolerance is less than or equal to 1.5 degrees.
The image distortion inspection of the X-ray inspection machine belongs to an independent inspection step, and aims to inspect whether the X-ray inspection machine generates image distortion or not, if the image distortion is generated, the inspection of the height of the steel wire for the turn-up of the tire by using the X-ray inspection machine is possibly inaccurate, and the adjustment and calibration are needed to be carried out on the steel wire for the turn-up of the tire, so that the inspection of the turn-up height is accurate. The inspection of this example is performed in synchronization with the inspection of the height of the turn-up by the X-ray inspection machine in example 3 to ensure that the inspection of the height of the turn-up is accurate each time the X-ray inspection machine is used. The location of the metal triangles is at the steel turnup end of the sidewall to ensure that there is no distortion in the X-ray machine imaging at the steel turnup end. Preferably, the metal triangular plate is a metal right-angle triangular plate, so that after the X-ray inspection machine forms an image, whether the right angle degree of the right-angle triangular plate in the image is 90 degrees or within an allowable fluctuation range can be directly measured, and the angle of each angle of the metal triangular plate does not need to be measured.
Although the present invention has been described in detail by way of examples, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The production method for improving the performance of the bead part of the rigid-clamped wheel is characterized in that in the step of forming a tire blank, the gluing of a rubber protection layer, a bead cushion rubber, an airtight layer, a transition layer, a tire body, a gluing sheet, a steel wire ring, a cushion rubber and an upper belted layer is sequentially carried out, then the tire body is turned up and pressed, then the fitting of a tire side component is carried out, and then the turning up and pressing of the tire side component are carried out after the gluing is finished.
2. The production method for improving the performance of a rigid-card tire bead part as claimed in claim 1, wherein the height of the turned-up tire body is checked after the turned-up tire body and before stitching: irradiating a marking to the tire body by using a red light linear laser, setting the position of the marking as the theoretical position of the reverse wrapping end point of the steel wire of the tire body, and then measuring the distance between the position of the marking on the tire body and the actual reverse wrapping end point of the steel wire of the tire body; and comparing the distance with a first preset standard to judge whether the tire body turn-up height is qualified or not.
3. The production method for improving the performance of a rigid-rim tire bead part as claimed in claim 2, wherein the first preset standard is: and judging the tyre body to be normal when the distance between the marked line position on the tyre body and the actual steel wire turn-up end point of the tyre body is +/-5-10 mm.
4. A production method for improving the performance of a rigid-rim tire bead part according to any one of claims 1 to 3, wherein the height of the turned-up tire body is checked before the finished tire product leaves a factory: manufacturing two metal rings with the same diameter as the lower edges of the turn-up end protection platforms at the tire side parts, and respectively fixing the metal rings at the positions of the turn-up end protection platforms at the two sides of the tire; and moving the tire fixed with the metal ring to an X-ray inspection machine for detection, displaying the metal ring in an image of the X-ray inspection machine in a marking line form after detection, measuring the distance between the marking line displayed by the metal ring in the image and an actual tire body steel wire turn-up end point, and comparing the distance with a first preset standard to judge whether the tire body turn-up height is qualified.
5. A production method for improving the performance of a rigid-card tire bead part according to claim 4, wherein the image distortion test of the X-ray tester at the tire bead part position is as follows: respectively fixing a metal triangular plate at the positions of the two side walls of the tire, which correspond to the turn-up end points of the steel wires of the tire body, and moving the tire fixed with the metal triangular plates to an X-ray inspection machine for detection; and measuring the angles of all angles of a triangle formed by the metal triangular plate in the image of the X-ray inspection machine, comparing the angles with the angles of the metal triangular plate, if the fluctuation tolerance meets a second preset standard, judging that the image of the X-ray inspection machine at the tire ring part is not distorted, otherwise, judging that the image is distorted, and adjusting and calibrating the X-ray inspection machine.
6. The production method for improving the performance of a rigid-rim tire bead portion according to claim 5, wherein the second predetermined criterion is a fluctuation tolerance of 1.5 degrees or less.
7. The method for improving the performance of a rigid-card tire bead part as claimed in claim 5, wherein the metal triangular plate is a metal right-angle triangular plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210096714.1A CN114103201B (en) | 2022-01-27 | 2022-01-27 | Production method for improving performance of bead part of rigid-block tire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210096714.1A CN114103201B (en) | 2022-01-27 | 2022-01-27 | Production method for improving performance of bead part of rigid-block tire |
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| CN114103201A true CN114103201A (en) | 2022-03-01 |
| CN114103201B CN114103201B (en) | 2022-04-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953551A (en) * | 2022-07-26 | 2022-08-30 | 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) | Production method for reducing side wall delamination of engineering radial tire |
| CN115848070A (en) * | 2023-02-23 | 2023-03-28 | 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) | Tire bead part capable of improving performance of bead part, tire and inspection method |
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| CN213594026U (en) * | 2020-11-05 | 2021-07-02 | 泰凯英(青岛)专用轮胎技术研究开发有限公司 | Giant engineering radial tire shoulder structure |
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| CN113791093A (en) * | 2021-10-14 | 2021-12-14 | 奇妙科技有限公司 | Tire defect detection data calibration device and method |
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| CN101085555A (en) * | 2007-06-27 | 2007-12-12 | 三角轮胎股份有限公司 | Forming process for all steel load radial tyre blank |
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| CN114953551A (en) * | 2022-07-26 | 2022-08-30 | 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) | Production method for reducing side wall delamination of engineering radial tire |
| CN114953551B (en) * | 2022-07-26 | 2022-11-11 | 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) | Production method for reducing side wall delamination of engineering radial tire |
| CN115848070A (en) * | 2023-02-23 | 2023-03-28 | 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) | Tire bead part capable of improving performance of bead part, tire and inspection method |
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| CN114103201B (en) | 2022-04-26 |
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