CN217403653U - Double-light-source glass stress detection device - Google Patents
Double-light-source glass stress detection device Download PDFInfo
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- CN217403653U CN217403653U CN202221478302.6U CN202221478302U CN217403653U CN 217403653 U CN217403653 U CN 217403653U CN 202221478302 U CN202221478302 U CN 202221478302U CN 217403653 U CN217403653 U CN 217403653U
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model provides a double light source glass stress detection device relates to the stress detection technique in the glass production process, include: the device comprises an emission head (101) and a detection measuring head (102) which are respectively arranged at the upper side and the lower side of glass to be measured in an aligning way, and further comprises a reference measuring head (103), wherein a detection light source (01) is arranged in the emission head (101), light energy emitted by the detection light source enters the detection measuring head through the glass, a reference light source (01') which is completely the same as the detection light source (01) is arranged in the reference measuring head (103), and light emitted by the reference light source is transmitted in the reference measuring head (103). The device uses the transmission method to measure the glass stress, realizes the glass stress detection through the phase difference of the double-optical-path output signals, ensures the measurement precision, reduces the requirements on optical elements and the precision requirements on mechanical structures, and is suitable for the on-line detection of the cold-end glass belt stress in the glass production line.
Description
Technical Field
The utility model belongs to the technical field of glass production, a stress detection technique in the glass production process is related to, especially glass stress detection device of glass production line cold junction.
Background
In a glass production line, when glass enters a cold end from an annealing kiln, thermal stress is generated in a glass belt due to the action of external mechanical force or thermal nonuniformity in cooling, the stress is usually extremely nonuniform, the mechanical strength and the thermal stability of glass products are reduced, and the safe use of the glass products is influenced, so that the glass stress detection at the cold end of the production line is very necessary.
CN100590425 discloses an on-line stress detection method and device for transparent flat glass, which applies microcomputer-digital image processing technology to on-line stress detection in industrial field, and packages the measuring device as a stress measuring box, and obtains the stress distribution of the whole glass ribbon by driving and scanning the glass plate to be detected by a guide rail and a driving system. The stress detection device is provided only on one side of the glass plate to be detected, and has no measuring member on the other side of the glass plate to be detected. CN211425732U discloses a glass stress detection device, including horizontal workbench, light source, polarizer, analyzer and camera element, the last vertical support frame that is provided with of horizontal workbench, the light source setting is on horizontal workbench, the polarizer is located the light source top, the polarizer top is provided with 1/4 wave plate, 1/4 wave plate top is the sample station, the glass sample that awaits measuring above the sample station, the analyzer is established on the support frame, camera element erects above the analyzer and is connected with image processing component. Similar glass stress detection device all is equipped with a light source, utilizes image processing technique to carry out stress detection, because vibration can make image acquisition receive the interference about in the glass data send process during on-line measuring, detects the precision and is difficult to guarantee, if through increasing other devices (for example compressed gas stamping device) stabilize glass vibration, then need additionally to be equipped with professional equipment, has increaseed detection, production and running cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two light source glass stress detection device.
The utility model provides a double light source glass stress detection device, include: the device comprises an emission head (101) and a detection measuring head (102) which are respectively arranged at the upper side and the lower side of glass to be measured in an aligning way, and further comprises a reference measuring head (103), wherein a detection light source (01) is arranged in the emission head (101), light energy emitted by the detection light source enters the detection measuring head through the glass, a reference light source (01') which is completely the same as the detection light source (01) is arranged in the reference measuring head (103), and light emitted by the reference light source is transmitted in the reference measuring head (103).
The double-light-source glass stress detection device is characterized in that elements in the emission head (101) and the detection measuring head (102) form a detection light path with the same optical axis, elements in the reference measuring head (103) form a reference light path with the same optical axis, and the elements in the reference light path are correspondingly the same as the elements in the detection light path so that the reference light path can be used as the reference of light emitted by the detection light source and does not pass through glass. Wherein the content of the first and second substances,
the emitting head (101) is formed by packaging a detection light source (01), a first convex lens (02) and a polarizer (03) which are sequentially arranged, wherein the polarizer (03) faces to glass;
the detection measuring head (102) is formed by packaging 1/4 glass slide (04), an optical filter (05), a rotatable analyzer mirror (06), a second convex lens (07) and a photoelectric tube (08) which are arranged in sequence, wherein 1/4 glass slide (04) faces glass.
The reference measuring head (103) is formed by packaging a reference light source (01 '), a first convex lens (02'), a polarizer (03 '), a rotatable analyzer (06'), a second convex lens (07 ') and a photoelectric tube (08') which are arranged in sequence and are identical to optical elements in a detection light path. The encapsulation should keep reference light source 01' hermetically sealed from the glass ribbon 011.
A polarizer (03 ') in the reference optical path is aligned with a filter (05) in the detection optical path, and analyzers (06 and 06'), second convex lenses (07 and 07 ') and phototubes (08 and 08') arranged in the two optical paths have the same position; the reference optical path of the reference measuring head (103) is equal to the optical path of the detection optical path in the detection measuring head (102).
The double-light-source glass stress detection device is also provided with a rotating mechanism 09 which is used for driving the analyzers (06 and 06') in the detection light path and the reference light path to synchronously rotate.
The double-light-source glass stress detection device is further provided with a shell (60), the detection measuring head (102), the reference measuring head (103) and the rotating mechanism (09) are assembled and fixed in the shell, the shell is just opposite to the position of the emission head (101) and is provided with a detection light incident port (601), and one end, facing the glass to be detected, of the detection measuring head (102) is just opposite to the detection light incident port (601).
Double light source glass stress detection device, still be equipped with and be used for driving emission head (101) and detection measuring head (102) for waiting to examine the drive mechanism of examining glass synchronous lateral shifting, drive mechanism includes: the two guide rails span the upper side and the lower side of the glass belt and are arranged in parallel; the two sliding blocks are respectively arranged on the two guide rails and can move along the guide rails, and the emission head (101) and the detection measuring head (102) are respectively fixed on the two sliding blocks in an aligned mode; and the motor can drive the two sliding blocks to move synchronously. Preferably, the reference measuring head (103) and the detection measuring head (102) are mounted on the same slide.
The double-light-source glass stress detection device further comprises a base (401), the two guide rails are erected on the upper portion and the lower portion of the two bases, and the motor and the control piece of the motor are installed in the bases.
Adopt above-mentioned technical scheme, the utility model discloses double light source glass stress detection device measures glass stress with the transmission method, through setting up the reference light source unanimous with the testing light source, disposes the detection light path and the reference light path that correspond, realizes glass stress through double light path output signal's phase difference and detects, has not only guaranteed measurement accuracy, has still avoided utilizing the inconvenience in the image processing technology stress detection. The reference measuring head and the detection measuring head are assembled in the same shell, so that the structure is compact, and the installation and the operation are convenient; the transmission mechanism can drive the emission head and the detection measuring head to move synchronously relative to the glass to be detected, so that the requirements on optical elements and the precision of a mechanical structure are reduced, the detection device is more widely suitable for online detection of the stress of the cold-end glass ribbon in the glass production line, and the stress detection result can be fed back to a control system of the glass production line to provide basic data for glass production.
Drawings
FIG. 1 is a schematic structural diagram of a glass stress detection device according to embodiments 1 and 2 of the present invention;
FIG. 2 is a schematic view of the structure of example 3;
FIG. 3 is a schematic structural view of example 4.
In the figures, the reference numbers are given by:
101-an emission head, 102-a detection head, 103-a reference head;
01-a detection light source, 01 '-a reference light source, 02 or 02' -a first convex lens, 03 or 03 '-a polarizer, 04-1/4 slide, 05-a filter, 06 or 06' -an analyzer, 07 or 07 '-a second convex lens, 08 or 08' -a phototube, 09-a rotating mechanism;
011-a glass ribbon;
30-a control unit;
401-base, 402-upper guide, 403-lower guide, 404-upper slide, 405-lower slide, 406-motor;
60-shell, 601-detection light entrance port, 603-detection signal interface, 604-reference signal interface.
Detailed Description
The following is a detailed description of the dual light source glass stress detection device of the present invention, which can be used but not limited to online stress detection in the glass production process.
In the description of the present invention, terms indicating positional relationship or orientation, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "longitudinal", "lateral", "vertical", "parallel", "inner", "outer", etc., are all based on the orientation or positional relationship shown in the drawings, and are only for convenience of describing the relationship between each component, element, device or system, and do not limit the specific orientation or positional relationship.
In the description of the present invention, unless explicitly defined or limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be directly connected to each other or indirectly connected through an intermediate member, or may be connected to each other through an intermediate member. To those of ordinary skill in the art, the specific meaning of the above terms may be understood according to the specific application scenario.
Furthermore, the terms "first," "second," and the like in the description and drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, either by implication or otherwise. "plurality" means two or more unless specifically limited otherwise.
The utility model provides a double light source glass stress detection device is with concrete embodiment detailed description with following attached drawings:
example 1
Fig. 1 shows the basic structure of the dual light source stress detection device of the present embodiment, including: the emission head 101 and the detection head 102 above are respectively disposed below and above the glass ribbon 011, and the reference head 103 is disposed above the glass ribbon 011 in this embodiment. The emission head 101 is internally provided with a detection light source 01, the light emitted by the detection light source 01 can penetrate through the glass ribbon 011 to enter the detection measuring head 102, the reference measuring head 103 is internally provided with a reference light source 01 ', the reference light source 01' is completely the same as the detection light source 01, and the emitted light is only transmitted in the reference measuring head 103 and does not irradiate the glass ribbon 011. Wherein:
the optical element arranged in the detection measuring head 102 and the optical element arranged in the emission head 101 are combined to form a detection light path, the detection light path comprises a detection light source 01, a first convex lens 02, a polarizer 03, an 1/4 glass sheet 04, an optical filter 05, a rotatable analyzer 06, a second convex lens 07 and a photoelectric tube 08 which are sequentially arranged on the detection light path, wherein the detection light source 01, the first convex lens 02 and the polarizer 03 are packaged to form the emission head 101, the 1/4 glass sheet 04, the optical filter 05, the rotatable analyzer 06, the second convex lens 07 and the photoelectric tube 08 are sequentially packaged to form the detection measuring head 102, the polarizer 03 in the emission head 101 faces the glass ribbon 011, and the 1/4 glass sheet 04 in the detection measuring head 102 faces the glass ribbon 011. During operation, the light beam that light source 01 sent forms parallel light through first convex lens 02, becomes plane polarized light through polarizer 03 again and jets out emission head 101, and plane polarized light gets into measuring head 102 through the refraction of glass area 011, promptly: the light sequentially passes through 1/4 slide 04 to become circularly polarized light (the slow axis or the fast axis of 1/4 slide 04 is parallel to the polarization direction of polarizer 03, the polarization direction of polarizer 03 is adjustable, the polarization direction of polarizer 03 and the running direction of glass ribbon 011 form an angle of 45 degrees), the circularly polarized light becomes monochromatic parallel light through color filter 05, then the monochromatic parallel light is formed into detected light through rotating analyzer 06, finally the detected light is converged and absorbed into phototube 08 through second lens 07, and a direct current pulse signal u1(t) is output by phototube 08.
The reference measuring head 103 is formed by optical elements arranged in the reference measuring head 103 to form a reference light path, wherein the reference light path comprises a reference light source 01 ', a first convex lens 02', a polarizer 03 ', a rotatable analyzer 06 ', a second convex lens 07 ' and a photoelectric tube 08 ' which are sequentially arranged from bottom to top on the reference light path, the optical elements are completely the same as the optical elements in the detection light path and are sequentially packaged to form the reference measuring head 103, and the packaging is to ensure that the reference light source 01 ' and the glass ribbon 011 are kept sealed and light-proof. During operation, a light beam emitted by a reference light source 01 ' is changed into plane polarized light through a first convex lens 02' and a polarizer 03 ', then reference verification light is formed through a rotating analyzer 06 ', and is collected and absorbed into a photoelectric tube 08 ' through a second convex lens 07 ', and a direct current pulse signal u2(t) is output by the photoelectric tube 08 '.
Here, the optical elements having the corresponding reference numerals, which are arranged on the detection optical path and the reference optical path, have the same optical parameters, for example, the optical elements of the same model, the same batch, and the same optical parameters. The optical paths of the optical paths in the reference measuring head 103 and the optical paths in the detection measuring head 102 are completely the same, the polarizer 03 'in the reference optical path is aligned with the optical filter 05 in the detection optical path, and the positions of the analyzers 06 and 06', the second convex lenses 07 and 07 ', and the phototubes 08 and 08' in the two optical paths are the same. In this way, the reference optical path is a reference in which the light emitted from the detection light source 01 does not pass through the glass ribbon 011.
When the device of this embodiment is used to detect the stress of the glass ribbon, the emission head 101 and the detection head 102 are always aligned up and down (all optical elements on the detection optical path are on the same optical axis), and are synchronized when the glass ribbon 011 moves up and down. The light sources of the detection light path and the reference light path, that is, the detection light source 01 and the reference light source 01 ' are the same-frequency light sources with good consistency, the light paths are synchronously lightened during detection, the rotatable analyzers 06/06 ' in the detection measuring head 102 and the reference measuring head 103 rotate at the same angle, the respective photoelectric tubes 08/08 ' output light path electric signals, the phase difference delta phi existing between the detection signal u1(t) of the detection light path and the reference signal u2(t) of the reference light path is the stress angle of the glass ribbon 011, and the stress value of the detection point of the glass ribbon 011 can be calculated through the phase difference delta phi.
Example 2
As an extension of embodiment 1, referring to fig. 1, the analyzers 06 and 06' in the detection optical path and the reference optical path share one rotation mechanism 09 (e.g., a drive motor) so that the analyzers placed in the opposite positions of the two optical paths can be mounted on one rotation mechanism 09 to rotate in synchronization therewith.
Example 3
As an extension of embodiment 2, as shown in fig. 2, the detecting head 102, the reference head 103 and the rotating mechanism 09 are assembled and fixed in a housing 60, the housing 60 is provided with a detecting light entrance port 601, the lower end (1/4 glass sheet 04) of the detecting head 102 faces the detecting light entrance port 601, and the light emitted from the emitting head 101 enters the detecting head 102 aligned with the glass ribbon 011. The housing 60 further has a detection signal port 603 and a reference signal port 604, and the detection signal port 603 and the reference signal port 604 are respectively used for leading out the detection signal and the reference signal output by the photocell 08/08' of the detection head 102 and the reference head 103. The housing 60 allows the measuring head 102 and the reference head 103 to be more compact and to move synchronously.
Example 4
The double light source stress detection device of the embodiment is based on the embodiments 1 to 3, and is additionally provided with a transmission mechanism for driving the emission head 101 and the detection measuring head 102 to synchronously and transversely move relative to the glass ribbon 011. The transmission mechanism at least comprises a guide rail crossing the upper side and the lower side of the glass ribbon and a slide block which is arranged on the guide rail and can move along the guide rail, and the guide rail is supported and erected by a base. Specifically, as shown in fig. 3, two bases 401 are disposed at the left and right ends of the glass ribbon 011, an upper guide rail 402 and a lower guide rail 403 are disposed above and below the two bases in parallel, an upper slider 404 is mounted on the upper guide rail 402, a lower slider 405 is mounted on the lower guide rail 403, the lower slider 405 is fixed with the emitter 101 facing upward, the upper slider 404 is fixed with the detection head 102 facing downward, the emitter 101 and the detection head 102 are aligned, and the distance between the polarizer 03 and the polarizer 1/4 glass sheet 04 facing the glass ribbon 011 and the glass ribbon 011 is equal. The motor 406 can be arranged in the base 401, the output end of the motor is connected with the upper sliding block and the lower sliding block through transmission elements such as a transmission rod or a ball screw, and the upper sliding block 404 and the lower sliding block 405 are driven to synchronously move along the guide rail, so that the transverse movement relative to the glass ribbon 011 is realized.
When the device works, the two bases 401 are arranged at the left end and the right end of the glass ribbon 011, the upper guide rail 402 and the lower guide rail 403 are respectively arranged at the upper side and the lower side of the glass ribbon 011, the starting motor 406 drives the upper sliding block 404 and the lower sliding block 405 to synchronously move along the guide rails, the emission head 101 and the detection measuring head 102 which are arranged on the sliding blocks move along with the guide rails and always keep alignment, and the stress detection is carried out on each position of the glass ribbon 011 through the detection light path and the reference light path according to the embodiment 1, so that the transverse (width direction of a production line) scanning stress measurement result of the whole glass ribbon 011 is completed.
In this embodiment, one or more of the following adjustments may be made:
the motor for pulling the sliding block to move is not limited to one, and an upper motor and a lower motor can be provided for pulling the upper sliding block 404 and the lower sliding block 405 respectively, but the actions of the two motors should be synchronized to ensure that the parts mounted on the two motors move synchronously.
It is necessary that the emission head 101 and the detection head 102 move synchronously with respect to the glass ribbon 011 to maintain the alignment above and below the glass ribbon. The reference head 103 may or may not be movable, and may not require synchronization with the emission head 101 during movement. In order to keep the device components compact and convenient to operate, the reference measuring head 103 and the detection measuring head 102 can be mounted on the same slide block (in the case of embodiment 3, the housing 60 is directly and fixedly mounted at the lower end of the upper slide block 404) so as to be capable of moving synchronously with the reference measuring head 103, and the reference measuring head 103 and the detection measuring head 102 can also share the same rotating mechanism 09 by moving synchronously with the reference measuring head and the detection measuring head.
The motor 406 and its controls may be mounted in the base 401 (as shown in fig. 3) to make the overall device compact.
The device may have a control unit 30 for controlling the operation of the motor 406, the emitting light source 01, the reference light source 01', the rotating mechanism 09, and the like. The control unit 30 may be mounted in a base 401 (as shown in fig. 3) to make the overall device compact, or may be mounted separately.
It will be understood by those skilled in the art that the foregoing embodiments are provided for illustrative purposes only and are not intended to limit the present invention, and that various equivalent modifications and changes may be made thereto without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. Double light source glass stress detection device, its characterized in that includes: the device comprises an emission head (101) and a detection measuring head (102) which are respectively arranged at the upper side and the lower side of glass to be measured in an aligning way, and further comprises a reference measuring head (103), wherein a detection light source (01) is arranged in the emission head (101), light energy emitted by the detection light source enters the detection measuring head through the glass, a reference light source (01') which is completely the same as the detection light source (01) is arranged in the reference measuring head (103), and light emitted by the reference light source is transmitted in the reference measuring head (103).
2. The dual light source glass stress detection device according to claim 1, wherein the elements in the emission head (101) and the detection head (102) are coaxial to form a detection light path, the elements in the reference head (103) are coaxial to form a reference light path, and the elements in the reference light path are corresponding to the elements in the detection light path so that the reference light path serves as a reference for the light emitted by the detection light source and does not pass through the glass.
3. The dual light source glass stress detecting device according to claim 2,
the emitting head (101) is formed by packaging a detection light source (01), a first convex lens (02) and a polarizer (03) which are sequentially arranged, wherein the polarizer (03) faces to the glass;
the detection measuring head (102) is formed by packaging 1/4 glass slide (04), an optical filter (05), a rotatable analyzer mirror (06), a second convex lens (07) and a photoelectric tube (08) which are arranged in sequence, wherein 1/4 glass slide (04) faces glass.
4. The dual light source glass stress detection device of claim 3,
the reference measuring head (103) is formed by packaging a reference light source (01 '), a first convex lens (02'), a polarizer (03 '), a rotatable analyzer (06'), a second convex lens (07 ') and a photoelectric tube (08') which are arranged in sequence and are identical to optical elements in a detection light path.
5. The dual light source glass stress detection device of claim 4,
a polarizer (03 ') in the reference optical path is aligned with a filter (05) in the detection optical path, and analyzers (06 and 06'), second convex lenses (07 and 07 ') and phototubes (08 and 08') arranged in the two optical paths have the same position;
the optical path length of the reference optical path of the reference measuring head (103) is equal to the optical path length of the detection optical path in the detection measuring head (102).
6. The dual light source glass stress detecting device according to claim 5,
a rotation mechanism (09) is also provided for synchronously rotating the analyzers (06 and 06') in the detection and reference optical paths.
7. The dual light source glass stress detection device of claim 6,
the device is also provided with a shell (60), the detection measuring head (102), the reference measuring head (103) and the rotating mechanism (09) are assembled and fixed in the shell, a detection light entrance port (601) is formed in the position, facing the emitting head (101), of the shell, and one end, facing the glass to be detected, of the detection measuring head (102) faces the detection light entrance port (601).
8. The dual-light-source glass stress detection device according to any one of claims 1 to 7, further comprising a transmission mechanism for driving the emission head (101) and the detection head (102) to synchronously move transversely relative to the glass to be detected, wherein the transmission mechanism comprises:
two guide rails which cross the upper and lower sides of the glass belt and are arranged in parallel,
two sliding blocks respectively mounted on the two guide rails and capable of moving along the guide rails, the emitting head (101) and the detecting head (102) are respectively fixed on the two sliding blocks in an aligned manner, an
And the motor can drive the two sliding blocks to synchronously move.
9. The dual light source glass stress detecting device according to claim 8,
the reference measuring head (103) and the detection measuring head (102) are arranged on the same sliding block.
10. The dual light source glass stress detecting device of claim 8, further comprising a base (401), wherein the two guide rails are erected on the upper and lower parts of the base, and the motor and the control members thereof are installed in the base.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221478302.6U CN217403653U (en) | 2022-06-14 | 2022-06-14 | Double-light-source glass stress detection device |
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| CN202221478302.6U CN217403653U (en) | 2022-06-14 | 2022-06-14 | Double-light-source glass stress detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115077755A (en) * | 2022-06-14 | 2022-09-20 | 秦皇岛玻璃工业研究设计院有限公司 | Glass production line cold end stress detection system and glass stress detection method |
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2022
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115077755A (en) * | 2022-06-14 | 2022-09-20 | 秦皇岛玻璃工业研究设计院有限公司 | Glass production line cold end stress detection system and glass stress detection method |
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