CN108454144B - Tire building machine and green tire forming rolling radial force fluctuation detection device thereof - Google Patents
Tire building machine and green tire forming rolling radial force fluctuation detection device thereof Download PDFInfo
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- CN108454144B CN108454144B CN201810111247.9A CN201810111247A CN108454144B CN 108454144 B CN108454144 B CN 108454144B CN 201810111247 A CN201810111247 A CN 201810111247A CN 108454144 B CN108454144 B CN 108454144B
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- Prior art keywords
- radial force
- green tire
- force fluctuation
- rolling
- tire building
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a radial force fluctuation detection device for green tire molding rolling, which is added in a molding project in advance, and compared with the prior art that the detection of the radial force is completed by a measurement project, the radial force fluctuation detection device can find the radial force defect in time, reduce the unnecessary workload of a vulcanization project and the measurement project, reduce the defect rate of RFV and improve the working efficiency. The invention also discloses a tire building machine applying the green tire building rolling radial force fluctuation detection device.
Description
Technical Field
The invention relates to the technical field of pneumatic tire production, in particular to a tire building machine and a green tire building rolling radial force fluctuation detection device thereof.
Background
At present, a green tire is vulcanized into a tire, after rough rubber trimming and appearance inspection, the tire enters a measuring engineering, UF/DB (uniformity balance) measurement is carried out on the tire by the measuring engineering, the tire which is measured to be qualified can be put into a finished product warehouse, and the tire which is measured to be unqualified is likely to be scrapped, wherein the tire has defects about RFV, namely, the radial force is poor.
Disclosure of Invention
In view of the above, the present invention provides a green tire building rolling radial force fluctuation detection apparatus, which can reduce the RFV defect rate and reduce the unnecessary workload of the vulcanizer and the measuring machine.
The invention also provides a tire building machine applying the green tire building rolling radial force fluctuation detection device.
In order to achieve the purpose, the invention provides the following technical scheme:
a green tire building rolling radial force fluctuation detection device for a tire building machine, comprising: the rolling wheel, the supporting mechanism and the detection mechanism;
the rolling wheels are rotatably arranged on the supporting mechanism, and the detection mechanism can detect the stress information of the rolling wheels.
Preferably, the system further comprises a control system; the control system can calculate the maximum radial force fluctuation amount according to the stress information of the rolling wheels detected by the detection mechanism, and output a bad instruction under the condition that the maximum radial force fluctuation amount exceeds a preset range.
Preferably, the malfunction instruction includes controlling the tire building machine to stop.
Preferably, the malfunction instruction includes lighting a malfunction indicator lamp.
Preferably, the control system is further capable of outputting a pass command if the maximum radial force fluctuation amount does not exceed a preset range.
Preferably, the rolling wheel is in the shape of an olive wheel.
Preferably, the detection mechanism comprises a load cell sensing device arranged between the rolling wheel and the support mechanism.
Preferably, the detection mechanism comprises two load cell sensing devices which are respectively arranged between two ends of the rolling wheel rotating shaft and the supporting mechanism.
Preferably, the device further comprises a driving mechanism; the driving mechanism comprises a lead screw, a push rod and a servo motor; the servo motor can drive the push rod to drive the supporting mechanism to move through the lead screw.
A tire building machine comprises a rolling system, wherein the rolling system comprises the green tire building rolling radial force fluctuation detection device.
According to the technical scheme, the radial force fluctuation detection device is added in the forming engineering in advance, and compared with the prior art that the radial force detection is completed by the measuring engineering, the radial force fluctuation detection device can find the radial force defect in time, reduce the unnecessary workload of the vulcanization engineering and the measuring engineering, reduce the defect rate of RFV and improve the working efficiency. The invention also provides a tire building machine applying the green tire building rolling radial force fluctuation detection device, which can ensure that the RFV defect can be detected in the building engineering and reduce the defect of finished products RFV.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a green tire building rolling radial force fluctuation detection device provided in an embodiment of the present invention.
Wherein, 10 is a base, 11 is a kickboard; 20 is an inflatable shaping cylinder; 30 is a carrying ring; 41 is a rolling wheel, 42 is a lead screw, 43 is a push rod, and 44 is a load cell sensing device; 50 is a green tire.
Detailed Description
The terms involved in the present solution are now explained as follows:
RFV: the value of the variation of the force of the tire in the vertical (radial) direction;
UFDB: uniformity balance;
b + T: the combination of the tyre body steel wire ring belt and the tyre surface.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a green tire forming rolling radial force fluctuation detection device, which is used for a tire forming machine and has the core improvement points that the device comprises: the rolling wheels 41, the supporting mechanism and the detecting mechanism;
wherein, rolling wheel 41 is rotatable to be installed in supporting mechanism, and detection mechanism can detect rolling wheel 41's atress information.
When the forming machine works, a semi-finished product is attached to a forming cylinder, and proper rolling is needed to ensure that the semi-finished product in the green tire is tightly attached and formed, and the original rolling system can only achieve the rolling effect.
According to the technical scheme, the radial force fluctuation detection device is added in the forming engineering in advance, and compared with the prior art that the radial force detection is completed by the measuring engineering, the radial force fluctuation detection device for green tire forming rolling can find that the radial force is poor in time, reduce unnecessary workload of a vulcanization engineering and the measuring engineering, reduce the defect rate of RFV and improve the working efficiency.
Preferably, the device for detecting the radial force fluctuation during green tire molding and rolling provided by the embodiment of the invention further comprises a control system; the control system can calculate the maximum radial force fluctuation amount according to the stress information of the rolling wheels 41 detected by the detection mechanism, and output a bad instruction under the condition that the maximum radial force fluctuation amount exceeds a preset range. The detection efficiency is improved by the analog calculation of the computer on the detection information. The control system can also obtain other data according to the stress information analysis so as to meet different detection requirements.
Specifically, the failure command includes controlling the tire building machine to stop. The automatic shutdown can be realized when the RFV is poor, and the automation degree of the device is improved.
Further, the bad instruction includes illuminating a bad indicator light. If the fluctuation quantity exceeds the control range, the NG is displayed by a red light, so that the staff can visually know the detection result.
In the present embodiment, the control system is also able to output a pass command if the maximum radial force fluctuation amount does not exceed the preset range. If the fluctuation amount is within the range, OK is displayed by a green light.
Preferably, the stitching wheels 41 have the form of olive wheels, so as to better cooperate with the green tyre 50, the structure of which can be seen with reference to fig. 1. The inner and outer diameter precision of the rolling wheel 41 should meet the bearing requirement.
Specifically, the detection mechanism includes a load cell sensing device 44 disposed between the rolling wheel 41 and the support mechanism, and is capable of directly detecting the force applied to the rolling wheel 41. Of course, the detection mechanism may also comprise other forms, such as indirect detection at the drive mechanism.
Furthermore, the detection mechanism comprises two load cell sensing devices 44 which are respectively arranged between the two ends of the rotating shaft of the rolling wheel 41 and the supporting mechanism, so that the detection precision is improved. The structure of which can be seen with reference to fig. 1.
The green tire molding rolling radial force fluctuation detection device provided by the embodiment of the invention also comprises a driving mechanism; the driving mechanism comprises a lead screw 42, a push rod 43 and a servo motor; the servo motor can drive the push rod 43 to carry the supporting mechanism to move through the lead screw 42, and the stability of measurement can be guaranteed.
The scheme has the following characteristics:
(1) the rolling wheel adopts an olive wheel shape, and the inner diameter and the outer diameter of the rolling wheel meet the bearing requirements;
(2) the push rod of the rolling wheel is driven by a servo motor, so that the stability of measurement can be ensured;
(3) maximum design range of load cell: 100kg of force, rolling applied pressure and the maximum radial force fluctuation amount of the tire;
(4) and the forming rolling step program control is realized at the detection time, and the maximum radial force fluctuation amount of the tire is automatically detected.
The embodiment of the invention also provides a tire building machine which comprises a rolling system, and the core improvement point of the tire building machine is that the rolling system comprises the green tire building rolling radial force fluctuation detection device. The structure of which can be seen in fig. 1, the support mechanism is mounted on the base 10 (here in particular by means of a lead screw 42 and a push rod 43).
The present solution is further described below with reference to specific implementations:
the principle that a radial force fluctuation detection device is added to a forming machine is as follows: the primary green tire 50 is sleeved into the inflation shaping cylinder 20, inflation extrusion shaping is carried out, the carrying ring 30 positions the rolled tire surface and the steel wire ring belt on the primary green tire, green tire combination rolling is carried out, the rolling wheel 41 slowly rises through a servo motor and is pressed against the tire surface, a force detection device is arranged below the servo motor, and information is transmitted to a computer for analog calculation. The inflation shaping cylinder 20 rotates to drive the B + T and the primary green tire 50 to rotate, the rolling wheel 41 just props against the surface of the green tire 50, when rolling is implemented, the green tire 50 gives the reaction force to the rolling wheel 41, the force passes through the force sensing device below the servo motor, the information transmission computer is subjected to analog calculation to detect the fluctuation quantity, the fluctuation quantity exceeds the control range, the NG is displayed by a red light, the fluctuation quantity is in the range, and the OK is displayed by a green light.
In summary, the embodiment of the present invention discloses a device for detecting radial force fluctuation in green tire molding rolling, which can effectively control the RFV defect in the molding process in advance, reduce unnecessary workload of the vulcanization process and the measurement process, and reduce the defect rate of the finished tire RFV, compared with the prior art in which a device for detecting radial force fluctuation is used in the measurement machine of the measurement process. The embodiment of the invention also discloses a tire building machine applying the green tire building rolling radial force fluctuation detection device.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a raw tyre shaping roll extrusion radial force fluctuation detection device for tire building machine which characterized in that includes: the device comprises an inflatable shaping cylinder (20), rolling wheels (41), a supporting mechanism, a detection mechanism and a control system;
the inflatable shaping cylinder (20) can rotate and can drive the green tire (50) to rotate, and the inflatable shaping cylinder (20) is used for being in contact fit with the inner circumferential surface of the green tire (50);
the rolling wheel (41) is rotatably arranged on the supporting mechanism and is used for abutting against the surface of the outer peripheral surface of the green tire (50); the detection mechanism can detect stress information of the rolling wheel (41), and comprises a load cell sensing device (44) arranged between the rolling wheel (41) and the supporting mechanism;
the control system can calculate the maximum radial force fluctuation amount according to the stress information of the rolling wheels (41) detected by the detection mechanism, and output a bad instruction when the maximum radial force fluctuation amount exceeds a preset range.
2. The green tire building roll radial force fluctuation detection apparatus of claim 1, wherein the failure command comprises controlling the tire building machine to shut down.
3. The green tire building roll radial force fluctuation detection apparatus of claim 1, wherein the failure command comprises illuminating a failure indicator light.
4. The green tire building roll radial force fluctuation detection apparatus of claim 1, wherein the control system is further configured to output a pass command if the maximum radial force fluctuation amount does not exceed a preset range.
5. Green tire building stitching radial force fluctuation detection apparatus according to claim 1, wherein the stitching wheel (41) is in the form of an olive wheel.
6. The green tire building and stitching radial force fluctuation detecting device according to claim 1, wherein the detecting mechanism comprises two load cell sensing devices (44) respectively disposed between both ends of the rotational axis of the stitching wheel (41) and the supporting mechanism.
7. The green tire building roll radial force fluctuation detecting device according to claim 1, further comprising a driving mechanism; the driving mechanism comprises a lead screw (42), a push rod (43) and a servo motor; the servo motor can drive the push rod (43) to carry the supporting mechanism to move through the lead screw (42).
8. A tire building machine, comprising a rolling system, a base (10) and a carrying ring (30), wherein the rolling system comprises the green tire building rolling radial force fluctuation detection device of any one of claims 1 to 7, the support mechanism is installed on the base (10), after a primary green tire (50) is sleeved into the air inflation shaping cylinder (20), air inflation extrusion shaping is carried out, and the carrying ring (30) positions a rolled tire tread and a steel wire ring belt on the primary green tire (50).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810111247.9A CN108454144B (en) | 2018-02-05 | 2018-02-05 | Tire building machine and green tire forming rolling radial force fluctuation detection device thereof |
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| CN201810111247.9A CN108454144B (en) | 2018-02-05 | 2018-02-05 | Tire building machine and green tire forming rolling radial force fluctuation detection device thereof |
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| CN108454144A CN108454144A (en) | 2018-08-28 |
| CN108454144B true CN108454144B (en) | 2020-12-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110948926B (en) * | 2019-12-13 | 2021-07-13 | 厦门洪海机械有限公司 | Shaping and rolling control method for green tire tread |
| DE102021214038A1 (en) * | 2021-12-09 | 2023-06-15 | Continental Reifen Deutschland Gmbh | Method for determining deviations in the bead core to bead core length of the carcass of a green tire or a cured tire and associated measuring arrangement |
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| CN101144757A (en) * | 2006-09-11 | 2008-03-19 | 青岛高校软控股份有限公司 | Tire uniformity testing method |
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| CN106696322B (en) * | 2015-08-21 | 2019-11-22 | 青岛软控机电工程有限公司 | Tyre first stage molding machine and tire shaping apparatus with it |
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| EP0928961A2 (en) * | 1998-01-07 | 1999-07-14 | Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. | Device for testing vehicle wheels or the like, in particular for demonstrating the working condition of motorcycle wheels |
| CN101144757A (en) * | 2006-09-11 | 2008-03-19 | 青岛高校软控股份有限公司 | Tire uniformity testing method |
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| CN108454144A (en) | 2018-08-28 |
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