CN107901319B - Method and system for detecting arrangement of calendered wirecord fabric - Google Patents

Method and system for detecting arrangement of calendered wirecord fabric Download PDF

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Publication number
CN107901319B
CN107901319B CN201711181193.5A CN201711181193A CN107901319B CN 107901319 B CN107901319 B CN 107901319B CN 201711181193 A CN201711181193 A CN 201711181193A CN 107901319 B CN107901319 B CN 107901319B
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China
Prior art keywords
arrangement
calendered
industrial
wirecord fabric
cord
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CN201711181193.5A
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CN107901319A (en
Inventor
边慧光
朱林
汪传生
梁振宁
翟天剑
王晓睿
刘小冬
张金秀
邱娜
李佳琛
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Qingdao University of Science and Technology
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Qingdao University of Science and Technology
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Publication of CN107901319A publication Critical patent/CN107901319A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/28Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/58Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32Component parts, details or accessories; Auxiliary operations
    • B29C43/58Measuring, controlling or regulating
    • B29C2043/585Measuring, controlling or regulating detecting defects, e.g. foreign matter between the moulds, inaccurate position, breakage

Abstract

The invention relates to detection of arrangement of calendered wirecord fabric, and discloses a detection method and a detection system of arrangement of calendered wirecord fabric. The detection method comprises data acquisition, data processing and analysis and data detection comparison, wherein the system comprises a frame, a plurality of industrial cameras, a surface light source and an industrial control system, the industrial cameras are arranged on an upper cross beam of the frame at intervals, the surface light source is arranged on a lower cross beam of the frame, the upper cross beam and the lower cross beam are respectively arranged on the upper surface and the lower surface of a rolling wirecord fabric to be detected, the cord surface of the rolling wirecord fabric to be detected is respectively parallel to a surface light source plane and each camera lens plane, and each industrial camera is connected with the industrial control system. The detection method and the detection system utilize machine vision to detect the arrangement of the steel wire cord in a non-contact mode, do not damage the steel wire cord, and do not influence the quality of the steel wire cord; simple structure is reasonable, simple to operate, can realize the on-line measuring when producing, effectively reduces manufacturing cost.

Description

Method and system for detecting arrangement of calendered wirecord fabric
Technical Field
The invention relates to detection of arrangement of calendered wirecord fabrics, in particular to a detection method and a detection system of arrangement of calendered wirecord fabrics, and particularly relates to a semi-finished product of wirecord fabrics for detecting rubber coating in radial tire production.
Background
In radial tire production, the rubberized wirecord is an important semi-finished product, and is manufactured by the steps of warping and calendaring the wirecord. In actual calendering production, due to the reasons of unstable pressure of a linkage line, processing errors of grooves of a warping roller and the like, phenomena of uneven arrangement, root missing, dislocation and the like of steel wires can be caused, the quality of tires is affected, and under the condition that detection is not available, the defects can only be found by observing in the cutting or forming process or detecting finished tires, so that the vulcanized tires are easily scrapped or degraded, and the production cost is increased.
In the prior art, the method for detecting the quality of the tire at home and abroad mainly comprises five methods of visual inspection, ultrasonic detection, X-ray detection, eddy current flaw detection and electromagnetic detection, wherein the X-ray detection and the electromagnetic detection are the methods which are developed relatively mature at present, but the method has the defects of relatively large ray hazard, high equipment price, high detection error reporting rate and the like, and is not used in a large scale in domestic tire production factories. In addition, the above mentioned detection methods all require that the detection can be performed after the tire is finished, and once the unqualified product is detected, the whole tire is discarded, so that serious resource waste is caused. Therefore, the simple method and system for detecting the arrangement of the calendared wirecord fabric are used for detecting the rubber covered wirecord fabric semi-finished product in the radial tire production, and have important significance.
Disclosure of Invention
The invention provides a method for detecting arrangement of calendared wirecord fabrics, which aims to solve the problems of the prior art that the lack of a method for detecting semi-finished products of rubber coated wirecord fabrics in radial tire production and the detection method of finished products of tires have great harm and expensive equipment.
In order to solve the technical problems, the invention adopts the following technical scheme:
the detection method for the arrangement of the calendered wirecord fabric specifically comprises the following steps:
(1) The system acquires standard parameter data of the rolled wirecord fabric to be detected, opens up a plurality of image memory spaces, irradiates the cord surface of the rolled wirecord fabric with a surface light source, and adopts a plurality of industrial cameras with CCD or CMOS photoelectric sensors arranged in a linear array to acquire images of the cord surface;
(2) The method comprises the steps that images acquired by an industrial camera are imported into a plurality of image memory spaces opened up before, and an image analysis and processing module processes the images in the memory spaces to obtain measured values of the number of cords and gaps;
(3) The detection comparison module compares the measured value with preset or system self-learning standard data, and outputs a measured result through the display, when the measured value is inconsistent with the standard data, namely when the measured value shows that the cord arrangement has errors of root missing, root loosening or dislocation, an alarm signal is output through the alarm, and meanwhile, the calender is stopped through the calender control panel.
The distance between the industrial camera and the cord surface is required to ensure that the image resolution is greater than 4pix/nm to ensure detection accuracy.
The specific steps of the image analysis and processing module for processing the image in the memory space are as follows: firstly, converting a two-dimensional signal into a one-dimensional signal, namely identifying a cord, and counting all possible extreme points of the one-dimensional signal; secondly, traversing all possible extreme points, filtering noise points by utilizing local signal correlation conditions, traversing all possible extreme points once, and correcting and filtering pseudo extreme points by utilizing the extreme points so as to obtain the final extreme points of the one-dimensional signal; finally, after all the one-dimensional signals are processed, counting the number of final target points and calculating the pixel distance between the two target points to obtain the measured value of the number of the cords and the gap.
When the detection comparison module compares the measured value with preset or system self-learning standard data, the preset cord number and cord clearance values can be set in a manual preset mode according to the tire calendering process requirements, and the detection comparison module can also detect once during starting up through a software self-learning function, and write an initial preset value, namely a 'write initial value' key provided by a display. After the operator presses the "write initial value" key, the system automatically reads in the last identification data (cord number, cord gap value) as an initial preset value. In order to avoid false alarm in the detection engineering, a 'maximum detection error count' is arranged in a program so as to solve false alarm and false alarm caused by uncertain factors in the actual production process.
The detection method provided by the invention is more specifically described as follows:
when the detection system enters a working state, the system opens up N image memory spaces (N is the number of industrial cameras), the parallel triggered image acquisition is processed by utilizing a method of a plurality of parallel processes of software, and the images acquired by the industrial cameras are imported into the opened corresponding memory spaces.
And secondly, performing two-dimensional signal to one-dimensional signal processing on the image in the memory space, namely identifying the cords according to rows, and in actual detection, taking 2 pixels as scanning intervals in the y direction, so that the operation speed of an algorithm is increased while the detection precision is met.
(III) for one-dimensional signals, all possible extremum points are found from the relation (front×later < 0) of the pre-gradient front (signal value at current index minus signal value at previous index) and the post-gradient later (signal value at next index minus signal value at current index) at each signal point.
And fourthly, judging and filtering noise extremum points through the local signal correlation of all the found possible extremum points, if the amplitude of the right (left) boundary of a certain extremum point is less than one third of the amplitude of the left (right) boundary, deleting the index value of the extremum point, and then considering the left and right boundary correlation of the next signal extremum point until all the extremum points meeting the local correlation condition are found.
And fifthly, after noise filtering and extreme point correction are carried out on all boundaries on the scanning line, the number of real extreme points on the scanning line can be obtained, and therefore the pixel distance between every two extreme points is obtained.
And (six) comparing the number and the gaps of the cords obtained through the processing with the number of the corresponding preset cords of each industrial camera relative to the corresponding image of each industrial camera, if the difference occurs, the problems of root missing, root loosening or dislocation and the like of the arrangement of the steel cords are indicated, and the detection software can send out audible and visual alarms by writing a calender control command and simultaneously stop the calender.
The invention further aims to provide a detection system for the arrangement of the rolling wirecord fabric, which comprises a frame, a plurality of industrial cameras, a surface light source and an industrial control system, wherein the industrial cameras are arranged on an upper cross beam of the frame at intervals, the surface light source is arranged on a lower cross beam of the frame, the upper cross beam and the lower cross beam are respectively arranged on the upper surface and the lower surface of the rolling wirecord fabric to be detected, the cord surface of the rolling wirecord fabric to be detected is respectively parallel to a surface light source plane and each camera lens plane, and each industrial camera is connected with the industrial control system.
Preferably, each industrial camera is connected with an industrial control host of the industrial control system in a gigabit network mode and uploads image data; the input/output control board of the industrial control system is connected with a plurality of cameras in a "+" type trigger mode through wires, and all connecting ports are isolated by adopting an optical coupler.
Preferably, the distance from the industrial camera to the cord surface is required to ensure that the resolution of the image is greater than 4pix/mm to ensure the accuracy of the acquired image, and to achieve a resolution of greater than 4pix/mm, if determined by adjusting the distance between the industrial camera and the cord surface, the distance from the industrial camera to the cord surface is 40-50cm.
Preferably, the vertical rod of the rack adopts a hollow square tube for supporting and fixing, and the hollow space of the hollow square tube is used for cable arrangement; the vertical rod of the frame is a hollow square tube with adjustable height.
Preferably, the detection system further comprises a touch display screen, an acousto-optic alarm lamp device and an elastic knob which are arranged on the vertical rod of the frame, and the touch display screen and the acousto-optic alarm lamp device are respectively connected with the industrial control host.
Compared with the prior art, the detection method and the detection system for the arrangement of the calendered wirecord fabric utilize machine vision to detect the arrangement of the wirecord fabric in a non-contact mode, do not damage the wirecord fabric and do not affect the quality of the wirecord fabric; simple structure is reasonable, simple to operate, can realize the on-line measuring when producing, effectively reduces manufacturing cost.
Drawings
FIG. 1 is a schematic diagram of a detection system for the arrangement of calendered wirecord fabrics provided by the invention;
FIG. 2 is a schematic diagram of an industrial control system according to the present invention;
fig. 3 is a flowchart of a method for detecting the arrangement of the calendered wirecord fabric.
Detailed Description
The invention discloses a method and a system for detecting arrangement of calendered wirecord fabric, and a person skilled in the art can properly improve the process parameters by referring to the content of the description. It is expressly noted that all such similar substitutions and modifications will be apparent to those skilled in the art, and are deemed to be included herein. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those skilled in the relevant art that variations and modifications can be made in the methods and applications described herein, and in the practice and application of the techniques of this invention, without departing from the spirit or scope of the invention.
As shown in fig. 1, the invention provides a detection system for arrangement of a rolled wirecord fabric, which comprises a frame, a plurality of industrial cameras 1, a surface light source 8 and an industrial control system, wherein the line distances of the industrial cameras 1 are arranged on an upper cross beam 2 of the frame, the surface light source 8 is arranged on a lower cross beam 11 of the frame, the upper cross beam 2 and the lower cross beam 11 are respectively arranged on the upper surface and the lower surface of a rolled wirecord fabric 9 to be detected, the cord surfaces of the rolled wirecord fabric 9 to be detected are respectively parallel to the plane of the surface light source 8 and the lens plane of each industrial camera 1, the distance from the industrial camera 1 to the cord surface is required to ensure that the image resolution is more than 4pix/mm so as to ensure the accuracy of acquired images, and the resolution is required to be more than 4pix/mm, and if the distance from the industrial camera to the cord surface is determined by adjusting the distance between the industrial camera and the cord surface is 40 cm to 50cm; each industrial camera 1 is connected with an industrial control host 7 of an industrial control system in a gigabit network mode and uploads image data; the input/output control board 6 of the industrial control system is connected with a plurality of industrial cameras 1 in a "+" triggering manner through wires, and all connection ports are isolated by adopting an optical coupler; the vertical rod 10 of the frame adopts a hollow square tube for supporting and fixing, and the hollow space of the hollow square tube is used for cable arrangement; the rack vertical rod 10 is a hollow square tube with adjustable height; the detection system further comprises a touch display screen 5, an acousto-optic alarm lamp device 3 and an elasticity knob 4 which are arranged on the stand vertical rod 10, and the touch display screen 5 and the acousto-optic alarm lamp device 3 are respectively connected with the industrial control host.
The invention provides a detection method for arrangement of calendered wirecord fabric, which is shown in fig. 3, and specifically comprises the following steps:
(1) The system acquires standard parameter data of the rolled wirecord fabric to be detected, opens up a plurality of image memory spaces, irradiates the cord surface of the rolled wirecord fabric with a surface light source, and adopts a plurality of industrial cameras with CCD or CMOS photoelectric sensors arranged in a linear array to acquire images of the cord surface; the distance between the industrial camera and the cord surface requires that the image resolution is guaranteed to be greater than 4pix/nm to ensure detection accuracy;
(2) The method comprises the steps that images acquired by an industrial camera are imported into a plurality of image memory spaces opened up before, and an image analysis and processing module processes the images in the memory spaces to obtain measured values of the number of cords and gaps;
the specific steps of the image analysis and processing module for processing the image in the memory space are as follows: firstly, converting a two-dimensional signal into a one-dimensional signal, namely identifying a cord, and counting all possible extreme points of the one-dimensional signal; secondly, traversing all possible extreme points, filtering noise points by utilizing local signal correlation conditions, traversing all possible extreme points once, and correcting and filtering pseudo extreme points by utilizing the extreme points so as to obtain the final extreme points of the one-dimensional signal; finally, after all the one-dimensional signals are processed, counting the number of final target points and calculating the pixel distance between two target points to obtain the measured value of the number of the cords and the gap;
(3) The detection comparison module compares the measured value with preset or system self-learning standard data, and outputs a measured result through the display, when the measured value is inconsistent with the standard data, namely when the measured value shows that the cord arrangement has errors of root missing, root loosening or dislocation, an alarm signal is output through the alarm, and meanwhile, the calender is stopped through the calender control panel.
More specifically, the detection method for the arrangement of the calendered wirecord fabric provided by the invention is specifically described as follows:
when the detection system enters a working state, the system opens up N image memory spaces (N is the number of industrial cameras), the parallel triggered image acquisition is processed by utilizing a method of a plurality of parallel processes of software, and the images acquired by the industrial cameras are imported into the opened corresponding memory spaces.
And secondly, performing two-dimensional signal to one-dimensional signal processing on the image in the memory space, namely identifying the cords according to rows, and in actual detection, taking 2 pixels as scanning intervals in the y direction, so that the operation speed of an algorithm is increased while the detection precision is met.
(III) for one-dimensional signals, all possible extremum points are found from the relation (front×later < 0) of the pre-gradient front (signal value at current index minus signal value at previous index) and the post-gradient later (signal value at next index minus signal value at current index) at each signal point.
And fourthly, judging and filtering noise extremum points through the local signal correlation of all the found possible extremum points, if the amplitude of the right (left) boundary of a certain extremum point is less than one third of the amplitude of the left (right) boundary, deleting the index value of the extremum point, and then considering the left and right boundary correlation of the next signal extremum point until all the extremum points meeting the local correlation condition are found.
And fifthly, after noise filtering and extreme point correction are carried out on all boundaries on the scanning line, the number of real extreme points on the scanning line can be obtained, and therefore the pixel distance between every two extreme points is obtained.
Comparing the number and the gaps of the cords obtained through the processing with the number of the corresponding preset cords of each industrial camera relative to the corresponding images of each industrial camera, if the difference occurs, the problems of root deficiency, root loosening or dislocation and the like of the arrangement of the steel cords are indicated, and the detection software can send out audible and visual alarms through writing in a calender control command and simultaneously stop the calender; when the detection comparison module compares the measured value with preset or system self-learning standard data, the preset cord number and cord clearance values can be set in a manual preset mode according to the tire calendering process requirements, and the detection comparison module can also detect once during starting up through a software self-learning function, and write an initial preset value, namely a 'write initial value' key provided by a display. After the operator presses the "write initial value" key, the system automatically reads in the last identification data (cord number, cord gap value) as an initial preset value. In order to avoid false alarm in the detection engineering, a 'maximum detection error count' is arranged in a program so as to solve false alarm and false alarm caused by uncertain factors in the actual production process.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (9)

1. The method for detecting the arrangement of the calendered wirecord fabric is characterized by comprising the following steps of:
(1) The system acquires standard parameter data of the rolled wirecord fabric to be detected, opens up a plurality of image memory spaces, irradiates the cord surface of the rolled wirecord fabric with a surface light source, and adopts a plurality of industrial cameras with CCD or CMOS photoelectric sensors arranged in a linear array to acquire images of the cord surface;
(2) The method comprises the steps that images acquired by an industrial camera are imported into a plurality of image memory spaces opened up before, and an image analysis and processing module processes the images in the memory spaces to obtain measured values of the number of cords and gaps;
(3) The detection comparison module compares the measured value with standard parameter data, outputs a measured result through the display, and outputs an alarm signal through the alarm when the measured value is inconsistent with the standard data, namely when the measured value shows that the cord arrangement has errors of root missing, root loosening or dislocation, and simultaneously stops the calender through the calender control board;
in the step (2), the specific steps of processing the image in the memory space by the image analysis and processing module are as follows: firstly, converting a two-dimensional signal into a one-dimensional signal, namely identifying a cord, and counting all possible extreme points of the one-dimensional signal; secondly, traversing all possible extreme points, filtering noise points by utilizing local signal correlation conditions, traversing all possible extreme points once, and correcting and filtering pseudo extreme points by utilizing the extreme points so as to obtain the final extreme points of the one-dimensional signal; finally, after all the one-dimensional signals are processed, counting the number of final target points and calculating the pixel distance between the two target points to obtain the measured value of the number of the cords and the gap.
2. A method of inspecting a calendered wirecord fabric arrangement as claimed in claim 1, wherein in step (1) the distance between the industrial camera and the cord face is required to ensure an image resolution of greater than 4pix/nm to ensure inspection accuracy.
3. A detection system for realizing arrangement of the calendered wirecord fabric according to any one of claims 1 and 2, which is characterized by comprising a frame, a plurality of industrial cameras, a surface light source and an industrial control system, wherein the industrial cameras are arranged on an upper beam of the frame at intervals, the surface light source is arranged on a lower beam of the frame, the upper beam and the lower beam are respectively arranged on the upper side and the lower side of the calendered wirecord fabric to be detected, the cord surfaces of the calendered wirecord fabric to be detected are respectively parallel to a surface light source plane and each camera lens plane, and each industrial camera is connected with the industrial control system.
4. A detection system for the arrangement of the calendered wirecord fabric as claimed in claim 3, wherein each industrial camera is connected with an industrial control host of the industrial control system in a gigabit network mode and uploads image data; the input/output control board of the industrial control system is connected with a plurality of cameras in a "+" type trigger mode through wires, and all connecting ports are isolated by adopting an optical coupler.
5. A system for inspecting the arrangement of calendered wirecord fabrics as claimed in claim 3, wherein the distance from the industrial camera to the cord surface is such that the resolution of the image is greater than 4pix/mm to ensure the accuracy of the acquired image.
6. A system for inspecting the arrangement of calendered wirecord fabrics as claimed in claim 5, wherein the distance from the industrial camera to the cord face is 40-50cm.
7. A system for inspecting the arrangement of calendered wirecord fabrics as claimed in claim 3, wherein the vertical rods of the frame are hollow square tubes for support and fixation, the hollow spaces of the hollow square tubes being used for cable arrangement.
8. The inspection system of a calendered wirecord fabric arrangement of claim 7 wherein the frame uprights are hollow square tubes of adjustable height.
9. A system for detecting the arrangement of the calendered wirecord fabric as claimed in claim 3, further comprising a touch display screen, an acousto-optic alarm lamp device and a tightening knob which are arranged on the vertical rod of the frame, wherein the touch display screen and the acousto-optic alarm lamp device are respectively connected with the industrial control host.
CN201711181193.5A 2017-11-23 2017-11-23 Method and system for detecting arrangement of calendered wirecord fabric Active CN107901319B (en)

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CN107901319B true CN107901319B (en) 2024-03-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110926963B (en) * 2019-11-22 2022-07-01 张家港市骏马钢帘线有限公司 Test equipment and method for simulating calendering condition of steel cord

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JP2009122939A (en) * 2007-11-14 2009-06-04 Bridgestone Corp Feature extraction program creation device for tire inspection and tire inspection device
EP2535175A1 (en) * 2011-06-15 2012-12-19 Sumitomo Rubber Industries Limited Apparatus for manufacturing tire ply material
CN204479487U (en) * 2015-01-13 2015-07-15 天津伊诺威逊科技开发有限公司 A kind of carcass ply measurement mechanism
CN106153636A (en) * 2015-04-03 2016-11-23 软控股份有限公司 The detection method of tyre wire cord fabric surface defect, Apparatus and system
CN207630384U (en) * 2017-11-23 2018-07-20 青岛科技大学 A kind of detecting system of calendering wirecord fabric arrangement

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10321770A1 (en) * 2003-05-15 2004-12-02 Continental Aktiengesellschaft Calendered rubber coated cord strip checking method uses cameras on both sides of the strip and produces an automatic visual indication of flaws on the strip
JP2009122939A (en) * 2007-11-14 2009-06-04 Bridgestone Corp Feature extraction program creation device for tire inspection and tire inspection device
EP2535175A1 (en) * 2011-06-15 2012-12-19 Sumitomo Rubber Industries Limited Apparatus for manufacturing tire ply material
CN204479487U (en) * 2015-01-13 2015-07-15 天津伊诺威逊科技开发有限公司 A kind of carcass ply measurement mechanism
CN106153636A (en) * 2015-04-03 2016-11-23 软控股份有限公司 The detection method of tyre wire cord fabric surface defect, Apparatus and system
CN207630384U (en) * 2017-11-23 2018-07-20 青岛科技大学 A kind of detecting system of calendering wirecord fabric arrangement

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