CN107498902B - Mechanical forming drum, tire bead locking force detection device and detection method thereof - Google Patents
Mechanical forming drum, tire bead locking force detection device and detection method thereof Download PDFInfo
- Publication number
- CN107498902B CN107498902B CN201710865020.9A CN201710865020A CN107498902B CN 107498902 B CN107498902 B CN 107498902B CN 201710865020 A CN201710865020 A CN 201710865020A CN 107498902 B CN107498902 B CN 107498902B
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- Prior art keywords
- locking
- bead
- tire bead
- pressure
- pressure value
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Classifications
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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
- B29D30/32—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
- B29D30/06—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
- B29D30/24—Drums
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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
- B29D30/06—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
- B29D2030/3207—Positioning the beads
-
- 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
- B29D2030/3214—Locking the beads on the drum; details of the drum in the bead locking areas, e.g. drum shoulders
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a mechanical forming drum, a tire bead locking force detection device and a detection method thereof, wherein the tire bead locking force detection device comprises a locking block (1) and a pressure sensor (2) which is arranged on the locking block (1) and used for detecting contact pressure with a tire bead (3). According to the tire bead locking force detection device, the pressure sensor is arranged on the locking block so as to detect the contact pressure between the locking block and the tire bead; the detection result of the pressure sensor is convenient for adjusting the locking pressure of the locking block to the tire bead, damage to the tire bead caused by overlarge locking pressure of the locking block to the tire bead is effectively avoided, and the situation that the tire bead moves caused by overlarge locking pressure of the locking block to the tire bead is avoided. Through the arrangement, the positioning effect on the tire bead is effectively improved, and the production quality of the tire is improved.
Description
Technical Field
The invention relates to the technical field of tire production equipment, in particular to a mechanical forming drum, a tire bead locking force detection device and a detection method thereof.
Background
In the molding process of the green tire, after the glue is attached, the tire bead is carried by the tire bead transfer ring to reach the preset position of the mechanical molding drum, the tire bead is placed, and the locking block is lifted to lock the tire bead so as to prevent the tire bead from moving in the turn-up process.
At present, in the process of locking the tire bead by the locking block, the locking block is pushed to be lifted by driving components such as an air cylinder and the like, so that the operation of locking the tire bead is achieved. However, in this process, the locking pressure of the locking block to lock the bead cannot be controlled. When the locking pressure is too high, the tire bead is extremely easy to damage; when the locking pressure of the locking block on the tire bead is too small, the tire bead is very easy to move. The positioning effect of the tire bead and the production quality of the tire are affected.
Therefore, how to improve the positioning effect of the tire bead and the production quality of the tire is a problem to be solved by the person skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a tire bead locking force detecting device to improve the positioning effect of the tire bead and the production quality of the tire. The invention also discloses a mechanical forming drum with the tire bead locking force detection device and a tire bead locking force detection method.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the tire bead locking force detection device comprises a locking block and a pressure sensor, wherein the pressure sensor is arranged on the locking block and used for detecting contact pressure with a tire bead.
Preferably, in the above bead locking force detecting device, the pressure sensor is disposed on a contact surface of the locking piece for contacting with the bead.
Preferably, in the above bead locking force detecting device, the locking piece includes a first locking piece portion and a second locking piece portion arranged along a vertical direction thereof, and the pressure sensor is located between the first locking piece portion and the second locking piece portion.
Preferably, in the above bead locking force detecting device, the pressure sensor is connected in communication with a driving unit that drives the locking piece to move.
Preferably, in the bead locking force detection device, the driving unit is an air cylinder, and the pressure sensor is in communication connection with a proportional control valve of the air cylinder.
The invention also provides a mechanical forming drum, which comprises a tire bead locking force detection device, wherein the tire bead locking force detection device is the tire bead locking force detection device.
The invention also provides a method for detecting the locking force of the tire bead, which comprises the following steps:
1) Setting an optimal pressure value;
2) Bringing the tire bead to a preset position, moving a locking block, and detecting the locking pressure of the locking block on the tire bead;
3) And comparing the detected pressure value with the optimal pressure value, and adjusting the locking effect of the locking block according to the comparison result.
Preferably, in the above method for detecting a locking force of a bead, in the step 1), a locking operation is performed on a high-quality bead through a preliminary experiment to obtain an optimal pressure value.
Preferably, in the above method for detecting a locking force of a bead, in the step 2), the locking pressure is detected in real time.
Preferably, in the above method for detecting a bead locking force, step 3) further includes step 301): and when the deviation between the detected pressure value and the optimal pressure value is larger than a preset difference value, judging that the tire bead is unqualified.
According to the technical scheme, the tire bead locking force detection device is convenient to detect the contact pressure between the locking block and the tire bead by arranging the pressure sensor on the locking block; the detection result of the pressure sensor is convenient for adjusting the locking pressure of the locking block to the tire bead, damage to the tire bead caused by overlarge locking pressure of the locking block to the tire bead is effectively avoided, and the situation that the tire bead moves caused by overlarge locking pressure of the locking block to the tire bead is avoided. Through the arrangement, the positioning effect on the tire bead is effectively improved, and the production quality of the tire is improved.
The embodiment of the invention also provides a mechanical forming drum and a tire bead locking force detection method. Because the bead locking force detection device has the technical effects, the mechanical forming drum with the bead locking force detection device and the bead locking force detection method have the same technical effects, and the description is not repeated here.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a mechanical building drum according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a bead locking force detecting device according to an embodiment of the present invention;
FIG. 3 is a schematic working diagram of a bead lock force detecting device according to an embodiment of the present invention;
fig. 4 is a schematic view of a green tire forming process of a mechanical forming drum according to an embodiment of the present invention.
Detailed Description
The invention discloses a tire bead locking force detection device which is used for improving the positioning effect of a tire bead and the production quality of a tire. The invention also discloses a mechanical forming drum with the tire bead locking force detection device and a tire bead locking force detection method.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a tire bead locking force detecting device, which includes a locking piece 1, and a pressure sensor 2 disposed on the locking piece 1 for detecting a contact pressure with a tire bead 3.
According to the tire bead locking force detection device provided by the embodiment of the invention, the pressure sensor 2 is arranged on the locking piece 1 so as to detect the contact pressure between the locking piece 1 and the tire bead 3; the detection result of the pressure sensor 2 is used for conveniently adjusting the locking pressure of the locking block 1 to the tire bead 3, so that the damage to the tire bead 3 caused by overlarge locking pressure of the locking block 1 to the tire bead 3 is effectively avoided, and the situation that the tire bead 3 moves due to overlarge locking pressure of the locking block 1 to the tire bead 3 is avoided. Through the arrangement, the positioning effect on the tire bead 3 is effectively improved, and the production quality of the tire is improved.
It will be appreciated that as shown in fig. 2, 3 and 4, in the molding process of the green tire, the rubber is wrapped on the mechanical molding drum, the bead transfer ring carries the bead 3 to a predetermined position of the mechanical molding drum, the driving unit drives the locking block 1 to move upwards, and the pressure sensor 2 detects the stress condition of the bead 3. In the process that the tire bead 3 is locked, the locking block 1 moves upwards, the pressure sensor 2 detects the locking pressure in real time, damage to the tire bead 3 caused by overlarge locking pressure of the locking block 1 to the tire bead 3 is avoided, and the situation that the tire bead 3 moves due to overlarge locking pressure of the locking block 1 to the tire bead 3 is avoided. After the tire bead 3 is locked by the locking block 1, the tire bead transfer ring is removed, and the tire starts to turn up; the middle drum is inflated, gas enters the middle drum through the air holes, and the inner pressure is strong under the blocking of the tire bead 3, so that the middle of the sizing material at the upper part of the middle drum is raised. And, the reverse wrapping rod reversely wraps the green tire.
In the present embodiment, the pressure sensor 2 is provided on the contact surface of the lock block 1 for contact with the bead 3. Through the arrangement, only the pressure sensor 2 is needed to be additionally arranged on the structure of the existing locking block 1, and the assembling steps of the tire bead locking force detection device are simplified.
The lock block 1 may be configured as a split structure disposed along a vertical direction thereof, and includes a first lock block portion and a second lock block portion, and the pressure sensor 2 is disposed between the first lock block portion and the second lock block portion. During the locking of the bead 3 by the locking piece 1, the bead 3 presses the first locking piece part towards the second locking piece part,
in order to improve the automatic control of the bead locking force detection device, the pressure sensor 2 is in communication with a drive unit which drives the movement of the locking piece 1. Through the arrangement, the driving unit can be adjusted according to the pressure value detected by the pressure sensor 2, manual adjustment is further avoided, and the automation control degree of the tire bead locking force detection device is improved.
In this embodiment, the driving unit is a cylinder, and the pressure sensor 2 is in communication connection with a proportional control valve of the cylinder. The proportion of the proportional control valve of the cylinder is adjusted by the pressure value detected by the pressure sensor 2, so that the operation of the cylinder is controlled.
The drive unit can also be provided as a further device, such as a linear motor or a hydraulic cylinder, etc., which are not described in detail here and are all within the scope of protection.
The embodiment of the invention also provides a mechanical forming drum which comprises a tire bead locking force detection device, wherein the tire bead locking force detection device is any one of the tire bead locking force detection devices. Since the above-mentioned bead lock force detecting device has the above-mentioned technical effects, the mechanical forming drum having the above-mentioned bead lock force detecting device should have the same technical effects, and will not be described in detail herein.
The embodiment of the invention also provides a method for detecting the locking force of the tire bead, which comprises the following steps:
s1: setting an optimal pressure value;
the optimal pressure value is an optimal pressure value when the locking block 1 locks the tire bead 3, and in the state of the pressure value, the tire bead 3 is not damaged due to the fact that the locking block 1 locks the tire bead 3 too much, and the tire bead 3 is not moved due to the fact that the locking block 1 locks the tire bead 3 too little.
S2: bringing the tire bead 3 to a preset position, moving the locking block 1 and detecting the locking pressure of the locking block 1 on the tire bead 3;
in the process, the bead 3 may be carried by the bead transfer ring to a predetermined position of the mechanical building drum, or the bead 3 may be carried or held by other means to a predetermined position. With the above arrangement, as the lock block 1 moves, the locking pressure of the lock block 1 against the bead 3 also changes.
S3: and comparing the detected pressure value with the optimal pressure value, and adjusting the locking effect of the locking block 1 according to the comparison result.
The locking effect of the locking piece 1 is determined according to the operation parameters of the driving device, and the locking effect of the locking piece 1 is adjusted by adjusting the operation parameters of the driving device.
According to the tire bead locking force detection method provided by the embodiment of the invention, the locking pressure of the locking block 1 on the tire bead 3 can be effectively adjusted, the damage to the tire bead 3 caused by the overlarge locking pressure of the locking block 1 on the tire bead 3 is effectively avoided, and the situation that the tire bead 3 moves caused by the overlarge locking pressure of the locking block 1 on the tire bead 3 is avoided. Through the arrangement, the positioning effect on the tire bead 3 is effectively improved, and the production quality of the tire is improved.
Preferably, in step S1, the locking operation is performed on the premium bead through a preliminary experiment to obtain an optimal pressure value. Wherein, the quality bead is a bead which meets the production requirement. And obtaining the optimal pressure value corresponding to each position of the locking block 1 relative to the high-quality tire bead through a preliminary experiment. By setting the optimal pressure value, the commissioned reference data is provided.
The optimal pressure value may also be set manually based on the experience of the operator, which will not be described in detail herein and is within the scope of protection.
In step S2, the locking pressure is detected in real time. That is, in the locking operation, the locking pressure of the locking piece 1 to the tire bead 3 is detected in real time, and the condition that the locking pressure of the locking piece 1 to the tire bead 3 is too large is avoided. Through the arrangement, the control precision is effectively improved.
Step S3 is followed by step S301: and when the deviation between the detected pressure value and the optimal pressure value is larger than a preset difference value, judging that the tire bead is unqualified. Through the operation, unqualified tire beads are effectively prevented from entering the next working procedure.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer 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 tire bead locking force detection device comprises a locking block (1) and is characterized by further comprising a pressure sensor (2) which is arranged on the locking block (1) and used for detecting the contact pressure with a tire bead (3);
the pressure sensor (2) is in communication connection with a driving unit for driving the locking block (1) to move, so that the driving unit can adjust the driving unit according to a detection pressure value detected by the pressure sensor (2);
the pressure sensor (2) is used for detecting the pressure value of the lock block (1), and comparing the detected pressure value with the optimal pressure value, and adjusting the locking effect of the lock block according to the comparison result; and judging that the tire bead is unqualified when the deviation between the detected pressure value and the optimal pressure value is larger than a preset difference value.
2. The bead lock force detection device according to claim 1, wherein the pressure sensor (2) is provided on a contact surface of the lock block (1) for contact with the bead (3).
3. The bead lock force detecting apparatus according to claim 1, wherein the lock block (1) includes a first lock block portion and a second lock block portion aligned in a vertical direction thereof, the pressure sensor (2) being located between the first lock block portion and the second lock block portion.
4. Bead lock force detection device according to claim 1, wherein the driving unit is a cylinder, and the pressure sensor (2) is in communication with a proportional control valve of the cylinder.
5. A mechanical building drum comprising a bead locking force detecting device, characterized in that the bead locking force detecting device is a bead locking force detecting device according to any one of claims 1-4.
6. The method for detecting the locking force of the tire bead is characterized by comprising the following steps:
1) Setting an optimal pressure value;
2) Bringing the bead (3) to a predetermined position, moving the lock (1) and detecting the locking pressure of the lock (1) on the bead (3);
3) Comparing the detected pressure value with the optimal pressure value, and adjusting the locking effect of the locking block (1) according to the comparison result; and judging that the tire bead is unqualified when the deviation between the detected pressure value and the optimal pressure value is larger than a preset difference value.
7. The method for detecting a locking force of a bead according to claim 6, wherein in the step 1), the locking operation is performed on the bead of good quality by a preliminary experiment to obtain an optimal pressure value.
8. The method for detecting a locking force of a bead as defined in claim 6, wherein in the step 2), the locking pressure is detected in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710865020.9A CN107498902B (en) | 2017-09-22 | 2017-09-22 | Mechanical forming drum, tire bead locking force detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710865020.9A CN107498902B (en) | 2017-09-22 | 2017-09-22 | Mechanical forming drum, tire bead locking force detection device and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107498902A CN107498902A (en) | 2017-12-22 |
| CN107498902B true CN107498902B (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710865020.9A Active CN107498902B (en) | 2017-09-22 | 2017-09-22 | Mechanical forming drum, tire bead locking force detection device and detection method thereof |
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| Country | Link |
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| CN (1) | CN107498902B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7400332B2 (en) | 2019-10-18 | 2023-12-19 | 住友ゴム工業株式会社 | Verification jig and its manufacturing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003033977A (en) * | 2001-07-25 | 2003-02-04 | Yokohama Rubber Co Ltd:The | Method and device for controlling bladder outside diameter in tire production process |
| JP2008170180A (en) * | 2007-01-09 | 2008-07-24 | Bridgestone Corp | Tire inspection device and method |
| KR100857451B1 (en) * | 2007-06-12 | 2008-09-08 | (주)함코 | Drum for tire mark matcher |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100411797B1 (en) * | 2001-06-05 | 2003-12-24 | 한국타이어 주식회사 | Contact Pressure Measuring Apparatus of Tire Bead |
| JP2009196191A (en) * | 2008-02-21 | 2009-09-03 | Bridgestone Corp | Method and mechanism of locking bead core |
| NL2003874C2 (en) * | 2009-11-26 | 2011-05-30 | Vmi Holland Bv | TIRE CONSTRUCTION DRUM WITH STORAGE MECHANISM. |
| CN103419046A (en) * | 2013-08-22 | 2013-12-04 | 芜湖奕辰模具科技有限公司 | Pressure measurable type machine tool clamp |
| CN106696319A (en) * | 2015-07-22 | 2017-05-24 | 青岛软控机电工程有限公司 | Tire forming drum |
| CN105880659B (en) * | 2016-06-15 | 2018-03-06 | 中信戴卡股份有限公司 | A kind of high-precision swelling device |
| CN106403864A (en) * | 2016-11-14 | 2017-02-15 | 苏州亨达尔工业材料有限公司 | Detection device for panel dimension |
-
2017
- 2017-09-22 CN CN201710865020.9A patent/CN107498902B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003033977A (en) * | 2001-07-25 | 2003-02-04 | Yokohama Rubber Co Ltd:The | Method and device for controlling bladder outside diameter in tire production process |
| JP2008170180A (en) * | 2007-01-09 | 2008-07-24 | Bridgestone Corp | Tire inspection device and method |
| KR100857451B1 (en) * | 2007-06-12 | 2008-09-08 | (주)함코 | Drum for tire mark matcher |
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| CN107498902A (en) | 2017-12-22 |
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