CN107498902A - Mechanical assembly drum, tyre bead locking force checking device and its detection method - Google Patents
Mechanical assembly drum, tyre bead locking force checking device and its detection method Download PDFInfo
- Publication number
- CN107498902A CN107498902A CN201710865020.9A CN201710865020A CN107498902A CN 107498902 A CN107498902 A CN 107498902A CN 201710865020 A CN201710865020 A CN 201710865020A CN 107498902 A CN107498902 A CN 107498902A
- Authority
- CN
- China
- Prior art keywords
- tyre bead
- closing piece
- checking device
- locking
- force checking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tyre Moulding (AREA)
Abstract
The invention discloses a kind of mechanical assembly drum, tyre bead locking force checking device and its detection method, tyre bead locking force checking device includes closing piece (1), also include being arranged on the closing piece (1), for detecting the pressure sensor (2) with the contact of tyre bead (3).Tyre bead locking force checking device provided by the invention, by setting pressure sensor on closing piece, in order to detect the contact of closing piece and tyre bead；Pass through the testing result of pressure sensor, in order to adjust locking pressure of the closing piece to tyre bead, effectively prevent because locking pressure of the closing piece to tyre bead is excessive and to tyre bead caused by damage, also, avoid because locking pressure of the closing piece to tyre bead is too small make tyre bead move situation.By above-mentioned setting, the locating effect to tyre bead is effectively increased, improves the quality of production of tire.
Description
Technical field
The present invention relates to tyre production equipment technical field, more particularly to a kind of mechanical assembly drum, the detection of bead lock clamp force
Device and its detection method.
Background technology
Green tire is in forming process, and after sizing material is bonded, tire bead transmission ring carries tyre bead and reaches the pre- of mechanical assembly drum
Positioning is put, and places tyre bead, and closing piece rises, and pins tyre bead, to prevent that tyre bead position is moved in turn-up process.
At present, during closing piece pins tyre bead, promote closing piece to rise by driving parts such as cylinders, reach pinning tyre bead
Operation.But in the process, uncontrollable closing piece pins the size of the locking pressure of tyre bead.When locking pressure is excessive,
Easily tyre bead is caused to damage；And when locking pressure of the closing piece to tyre bead is too small, easily move tyre bead.Influence determining for tyre bead
The quality of production of position effect and tire.
Therefore, the locating effect and tire production quality of tyre bead how are improved, is that those skilled in the art is urgently to be resolved hurrily
Problem.
The content of the invention
In view of this, the invention provides a kind of tyre bead locking force checking device, to improve the locating effect of tyre bead and wheel
Viviparous yield and quality.The invention also discloses a kind of mechanical assembly drum and tyre bead locking with above-mentioned tyre bead locking force checking device
Power detection method.
To achieve the above object, the present invention provides following technical scheme：
A kind of tyre bead locking force checking device, including closing piece, in addition to be arranged on the closing piece, for detection and tyre bead
Contact pressure sensor.
Preferably, in above-mentioned tyre bead locking force checking device, the pressure sensor is arranged at the closing piece and is used for and institute
State on the contact surface of beads contact.
Preferably, in above-mentioned tyre bead locking force checking device, the closing piece includes the first lock along the arrangement of its vertical direction
Block portion point and the second closing piece part, the pressure sensor be located at the first closing piece part and the second closing piece part it
Between.
Preferably, in above-mentioned tyre bead locking force checking device, the pressure sensor and the drive for driving the closing piece motion
Moving cell communicates to connect.
Preferably, in above-mentioned tyre bead locking force checking device, the driver element is cylinder, the pressure sensor and institute
State the ratio adjusting valve communication connection of cylinder.
Present invention also offers a kind of mechanical assembly drum, including tyre bead locking force checking device, the bead lock clamp force inspection
Device is surveyed as the tyre bead locking force checking device described in any one as described above.
Present invention also offers a kind of bead lock clamp force detection method, including step：
1) optimum pressure value is set；
2) tyre bead is taken to precalculated position, closing piece is mobile and detects locking pressure of the closing piece to the tyre bead；
3) by detection pressure value compared with optimum pressure value, the locking that the closing piece is adjusted according to comparative result is imitated
Fruit.
Preferably, in above-mentioned bead lock clamp force detection method, in the step 1), high-quality tyre bead is entered by previous experiments
Row locking operation, obtain optimum pressure value.
Preferably, in above-mentioned bead lock clamp force detection method, in the step 2), the pressure of detection locking in real time.
Preferably, in above-mentioned bead lock clamp force detection method, it is characterised in that also include step after the step 3)
301)：When the deviation between the detection pressure value and the optimum pressure value is more than predetermined difference value, judge that the tyre bead does not conform to
Lattice.
It can be seen from the above technical scheme that tyre bead locking force checking device provided by the invention, by closing piece
Pressure sensor is set, in order to detect the contact of closing piece and tyre bead；By the testing result of pressure sensor, in order to
Adjust locking pressure of the closing piece to tyre bead, effectively prevent because locking pressure of the closing piece to tyre bead is excessive and to tyre bead caused by damage
It is bad, also, avoid the situation for moving tyre bead because locking pressure of the closing piece to tyre bead is too small.By above-mentioned setting, effectively
The locating effect to tyre bead is improved, improves the quality of production of tire.
The embodiment of the present invention additionally provides a kind of mechanical assembly drum and bead lock clamp force detection method.Due to above-mentioned bead lock
Clamp force detection means has above-mentioned technique effect, has the mechanical assembly drum and tyre bead locking of above-mentioned tyre bead locking force checking device
Power detection method should also have same technique effect, no longer tire out one by one state herein.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of mechanical assembly drum provided in an embodiment of the present invention；
Fig. 2 is the structural representation of tyre bead locking force checking device provided in an embodiment of the present invention；
Fig. 3 is the operating diagram of tyre bead locking force checking device provided in an embodiment of the present invention；
Fig. 4 is the green tire molding procedure schematic diagram of mechanical assembly drum provided in an embodiment of the present invention.
Embodiment
The invention discloses a kind of tyre bead locking force checking device, to improve the locating effect of tyre bead and tire production matter
Amount.The invention also discloses a kind of mechanical assembly drum with above-mentioned tyre bead locking force checking device and bead lock clamp force detection side
Method.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1, Fig. 2 and Fig. 3 are refer to, the embodiments of the invention provide a kind of tyre bead locking force checking device, including closing piece
1, in addition to be arranged on closing piece 1, for detecting the pressure sensor 2 with the contact of tyre bead 3.
Tyre bead locking force checking device provided in an embodiment of the present invention, by setting pressure sensor 2 on closing piece 1, with
It is easy to detect the contact of closing piece 1 and tyre bead 3；By the testing result of pressure sensor 2, in order to adjust closing piece 1 to tire
The locking pressure of circle 3, effectively prevent because locking pressure of the closing piece 1 to tyre bead 3 is excessive and to tyre bead 3 caused by damage, also, keep away
The situation for moving tyre bead 3 because locking pressure of the closing piece 1 to tyre bead 3 is too small is exempted from.By above-mentioned setting, effectively increase pair
The locating effect of tyre bead 3, improve the quality of production of tire.
It is understood that shown as shown in Figure 2, Figure 3 and Figure 4, for green tire in molding procedure, sizing material is wrapped in mechanical assembly drum
On, tire bead transmission ring carries the precalculated position that tyre bead 3 reaches mechanical assembly drum, and driver element driving closing piece 1 moves up, pressure
Sensor 2 detects the stressing conditions of tyre bead 3.During tyre bead 3 is by lock, closing piece 1 moves up, and pressure sensor 2 is real-time
To locking pressure detect, avoid because locking pressure of the closing piece 1 to tyre bead 3 is excessive and to tyre bead 3 caused by damage, also avoid because
The situation that locking pressure of the closing piece 1 to tyre bead 3 is too small and moves tyre bead 3.After tyre bead 3 is pinned by closing piece 1, tire bead transmission ring moves
Walk, tire proceeds by anti-package action；Middle drum inflation, drum during gas is entered by stomata, under the stop of tyre bead 3, inside pressure
Force the sizing material median rise on middle bulging top.Also, counter-wrapping rod anti-package green tire.
In the present embodiment, pressure sensor 2 is arranged at the contact surface that closing piece 1 is used to contact with tyre bead 3.By above-mentioned
Set, it is only necessary to increase pressure sensor 2 in the existing structure of closing piece 1, simplify the group of tyre bead locking force checking device
Fill step.
Closing piece 1 can also be arranged to the split-type structural set along its vertical direction, including the first closing piece part and the
Two closing piece parts, pressure sensor 2 are arranged between the first closing piece part and the second closing piece part.Tyre bead 3 is locked in closing piece 1
During, first closing piece part of the extruding of tyre bead 3 is close to the second closing piece part,
In order to improve the Automated condtrol of tyre bead locking force checking device, the drive that pressure sensor 2 moves with driving closing piece 1
Moving cell communicates to connect.By above-mentioned setting, enable to driver element to detect obtained pressure value according to pressure sensor 2 and adjust
Whole driver element, further avoid and manually adjust, and improve the automatic controlling level of tyre bead locking force checking device.
In the present embodiment, driver element is cylinder, and the ratio adjusting valve of pressure sensor 2 and cylinder communicates to connect.Pass through
The pressure value that pressure sensor 2 detects, the ratio of the ratio adjusting valve of cylinder is adjusted, and then control the operation of cylinder.
Driver element can also be arranged to other equipment, such as linear electric motors or hydraulic cylinder, no longer tire out one by one state herein
And within protection domain.
The embodiment of the present invention additionally provides a kind of mechanical assembly drum, including tyre bead locking force checking device, bead lock clamp force
Detection means is any tyre bead locking force checking device as described above.Because above-mentioned tyre bead locking force checking device has above-mentioned skill
Art effect, the mechanical assembly drum with above-mentioned tyre bead locking force checking device also should be with similarly technique effects, herein no longer
It is discussed in detail.
The embodiment of the present invention additionally provides a kind of bead lock clamp force detection method, including step：
S1：Set optimum pressure value；
The optimum pressure value is optimum pressure value when closing piece 1 locks tyre bead 3, will not be because of lock under the pressure state of value
Locking pressure of the block 1 to tyre bead 3 is excessive and tyre bead 3 is caused to damage, also will not be too small because of locking pressure of the closing piece 1 to tyre bead 3
And the situation for moving tyre bead 3.
S2：Take tyre bead 3 to precalculated position, closing piece 1 moves and detects locking pressure of the closing piece 1 to tyre bead 3；
In the process, tyre bead 3 can be carried to the precalculated position of mechanical assembly drum by tire bead transmission ring, can also be by it
He carries device or clamping tyre bead 3 is moved to precalculated position.By above-mentioned setting, as closing piece 1 moves, closing piece 1 is to tyre bead 3
Locking pressure also changes therewith.
S3：By detection pressure value compared with optimum pressure value, the locking effect of closing piece 1 is adjusted according to comparative result.
Wherein, depending on the locking effect of closing piece 1 is according to the operational factor of its drive device, by the fortune for adjusting drive device
Row parameter, have the function that the locking effect for adjusting closing piece 1.
A kind of bead lock clamp force detection method provided in an embodiment of the present invention, can effectively adjust lock of the closing piece 1 to tyre bead 3
Compaction forces, effectively prevent because locking pressure of the closing piece 1 to tyre bead 3 is excessive and to tyre bead 3 caused by damage, also, avoid because
The situation that locking pressure of the closing piece 1 to tyre bead 3 is too small and moves tyre bead 3.By above-mentioned setting, effectively increase to tyre bead 3
Locating effect, improve the quality of production of tire.
Preferably, in step S1, locking operation is carried out to high-quality tyre bead by previous experiments, obtains optimum pressure value.Its
In, high-quality tyre bead is the satisfactory tyre bead of production.By previous experiments, closing piece 1 is obtained relative to each position of high-quality tyre bead
Corresponding optimum pressure value.By setting optimum pressure value, there is provided the reference data of debugging.
Optimum pressure value can also manually be set according to the experience of operating personnel, no longer be discussed in detail and protecting herein
Within the scope of.
In step S2, the pressure of detection locking in real time.That is, in locking operation, locking of the closing piece 1 to tyre bead 3 is detected in real time
Pressure, avoid the excessive situation of locking pressure of the closing piece 1 to tyre bead 3.By above-mentioned setting, control accuracy is effectively increased.
Also include step S301 after step S3：When the deviation between the detection pressure value and the optimum pressure value is big
When predetermined difference value, judge that the tyre bead is unqualified.By aforesaid operations, it effectively prevent underproof tyre bead and enter next work
Sequence.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of tyre bead locking force checking device, including closing piece (1), it is characterised in that also include being arranged at the closing piece (1)
On, for detecting the pressure sensor (2) with the contact of tyre bead (3).
2. tyre bead locking force checking device as claimed in claim 1, it is characterised in that the pressure sensor (2) is arranged at
The closing piece (1) is used for the contact surface contacted with the tyre bead (3).
3. tyre bead locking force checking device as claimed in claim 1, it is characterised in that the closing piece (1) includes vertical along its
Direction arrangement the first closing piece part and the second closing piece part, the pressure sensor (2) be located at the first closing piece part and
Between the second closing piece part.
4. the tyre bead locking force checking device as described in claim any one of 1-3, it is characterised in that the pressure sensor
(2) driver element with driving closing piece (1) motion communicates to connect.
5. tyre bead locking force checking device as claimed in claim 4, it is characterised in that the driver element is cylinder, described
The ratio adjusting valve of pressure sensor (2) and the cylinder communicates to connect.
6. a kind of mechanical assembly drum, including tyre bead locking force checking device, it is characterised in that the tyre bead locking force checking device
For the tyre bead locking force checking device as described in claim any one of 1-5.
7. a kind of bead lock clamp force detection method, it is characterised in that including step：
1) optimum pressure value is set；
2) tyre bead (3) is taken to precalculated position, closing piece (1) is mobile and detects locking pressure of the closing piece (1) to the tyre bead (3)
Power；
3) detection pressure value is adjusted into the locking effect of the closing piece (1) according to comparative result compared with optimum pressure value.
8. bead lock clamp force detection method as claimed in claim 7, it is characterised in that real by early stage in the step 1)
Test and locking operation is carried out to high-quality tyre bead, obtain optimum pressure value.
9. bead lock clamp force detection method as claimed in claim 7, it is characterised in that in the step 2), detection in real time is locked
Compaction forces.
10. the bead lock clamp force detection method as described in claim any one of 6-9, it is characterised in that after the step 3)
Also include step 301)：When the deviation between the detection pressure value and the optimum pressure value is more than predetermined difference value, judge
The tyre bead is unqualified.
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 true CN107498902A (en) | 2017-12-22 |
| CN107498902B CN107498902B (en) | 2023-06-06 |
Family
ID=60698236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710865020.9A Active CN107498902B (en) | 2017-09-22 | 2017-09-22 | Mechanical forming drum, tire bead locking force detection device and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107498902B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021067477A (en) * | 2019-10-18 | 2021-04-30 | 住友ゴム工業株式会社 | Verification jig and manufacturing method thereof |
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| KR20020092626A (en) * | 2001-06-05 | 2002-12-12 | 한국타이어 주식회사 | Contact Pressure Measuring Apparatus of Tire Bead |
| 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 |
| JP2009196191A (en) * | 2008-02-21 | 2009-09-03 | Bridgestone Corp | Method and mechanism of locking bead core |
| US20110315322A1 (en) * | 2009-11-26 | 2011-12-29 | Martin De Graaf | Tyre building drum with turn-up 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 |
| CN105880659A (en) * | 2016-06-15 | 2016-08-24 | 中信戴卡股份有限公司 | High-precision tensioning 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 |
| CN106696319A (en) * | 2015-07-22 | 2017-05-24 | 青岛软控机电工程有限公司 | Tyre building drum |
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2017
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020092626A (en) * | 2001-06-05 | 2002-12-12 | 한국타이어 주식회사 | Contact Pressure Measuring Apparatus of Tire Bead |
| 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 |
| JP2009196191A (en) * | 2008-02-21 | 2009-09-03 | Bridgestone Corp | Method and mechanism of locking bead core |
| US20110315322A1 (en) * | 2009-11-26 | 2011-12-29 | Martin De Graaf | Tyre building drum with turn-up 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 | Tyre building drum |
| CN105880659A (en) * | 2016-06-15 | 2016-08-24 | 中信戴卡股份有限公司 | High-precision tensioning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021067477A (en) * | 2019-10-18 | 2021-04-30 | 住友ゴム工業株式会社 | Verification jig and manufacturing method thereof |
| JP7400332B2 (en) | 2019-10-18 | 2023-12-19 | 住友ゴム工業株式会社 | Verification jig and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107498902B (en) | 2023-06-06 |
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