WO2010059728A1 - Vei void detection systems - Google Patents
Vei void detection systems Download PDFInfo
- Publication number
- WO2010059728A1 WO2010059728A1 PCT/US2009/064991 US2009064991W WO2010059728A1 WO 2010059728 A1 WO2010059728 A1 WO 2010059728A1 US 2009064991 W US2009064991 W US 2009064991W WO 2010059728 A1 WO2010059728 A1 WO 2010059728A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- voids
- present
- lumps
- detection system
- void
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0072—Product control or inspection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan 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
- G01N2021/8854—Grading and classifying of flaws
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan 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
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/888—Marking defects
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Textile Engineering (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
A fully automatic non-destructive void detection and quantification system for gypsum wallboard. Utilizing state-of-the-art infrared cameras and high speed image processors, voids and lumps are automatically located, sized and counted. The present invention provides 100% inspection at rates up to 600 feet per minute. The present invention provide previously unavailable, constant, real time void data to operators at both ends of the production line. Thus, making it able to detect voids sooner and allow for adjustments to be made when needed and resulting in less waster product and reduced chance of sending bad products our to the customer.
Description
VEI Void Detection Systems
This application claims the priority of U.S. Provisional Application Serial No. 61/193,330 entitled "VEI Void Detection Systems" filed on 18 November 2008 (11/18/2008), the entire contents and substance of which are hereby incorporated in total by reference.
Inventor: Boatner Jr.; Charles (Sherman, MS) Appl. No: 61/193,330
BACKGROUND OF THE INVENTION
1, Field of the Invention
The present invention is directed to the detection and analysis of voids, lumps, and imperfections within a material structure. In particular, the present invention is directed to a system database or void detection that uses infrared technology to determine the voids, lumps and imperfections and uses a signal processing technique sending alarms and warnings for the identification of faults in structures of the Gypsum Wallboard and to determine quantitatively the voids and lumps or imperfections.
2. Description of Related Art
Sensors have been used to detect imperfections in the certain material structures. The ability to detect voids and lumps before a material is actually cut and made into a structure and having the ability to make adjustments when needed results in less wasted product and reduced chance of sending bad product out to a customer.
An apparatus in US Patent No. 4582993 has been claimed for "detecting voids in or on the surface of cast metal comprises passing a substantially collimated beam of
photons through the cast metal, detecting the photon flux emerging from the cast metal with a photon detector, and estimating the size and location of any void present in or on the cast metal from the standard deviation of the output of the photon detector with calculating means." SUMMARY OF THE INVENTION
The present invention uses temperature detecting equipment to non-destructively analyze gypsum board and other building materials in real time, as they are produced, for visible and invisible manufacturing characteristics that are indicated by temperature differences.
One step to help decrease the wasted material being used or the defected products being sent to customers, is to have the ability to detect voids and imperfections in material before it is first made. The present invention allows the consumer to do such. The present invention provides previously unavailable, constant, real-time void data to operators at both ends of the production line.
Typical methods for inspecting building products for visible and invisible defects include sampling and destructive methods. The present invention offers both non-contact and non-destructive, 100% inspection of a product.
The present invention uses temperature detecting equipment to generate temperature profiles of portions of building materials as they are being manufactured. The materials can either be single prices or a continuous stream. An appropriate number of temperature profiles are taken so that the entire stream or piece is analyzed.
Additionally, the present invention provides such that the temperature profiles are analyzed and areas that contain temperatures that are different than the majority of the
image are identified. These areas of increased/decreased temperature are then further analyzed for size, shape, temperature differential, and location within the product.
Continuously, over short periods of time, the size, shape, temperature and location data is compiled and stored in the processing unit. This data is plotted on graphs for trend analysis.
The present invention transfers data in real time to other plant systems so that corrections can be made to prevent the production of more defects.
The present invention, additionally, receives data in real time from other plant systems, including product and speed data, reconfiguring the system to analyze images differently depending on the current conditions.
In addition to the aforementioned, with respect to the present invention, the VEl Void Detection System includes the forms of:
A void detection system which relays real time and trending data to wet-end operators.
The void detection system further sends all data to existing plant control system databases or archiving systems.
The void detection system sends alarms and warnings to existing PLCs or control systems and further, product recipes can also be received from PLCs.
The void detection system also sends real time and trending data to knife operators. BRIEF DESCRIPTION OF THE DRAWINGS:
The invention will now be described in reference to the following drawings in which:
FIG 1 shows a perspective view of the layout of the present invention;
FIG 2 is a partial view of the present invention as a whole;
FIG. 3 shows a similar view to that of FIG 1 with the present invention being intended for use.
FIG 4. is a one layout of how the present invention could be placed for use; DETAILED DESCRIPTION OF THE INVENTION
During the sequence of this description like numbers will be used to identify like elements according to the different views which illustrate the invention.
As can be seen in FIG 1 the invention is a standard setup and layout of the present invention, and as shown, the present invention consists of temperature detecting equipment 10 and a processing interface and control unit 12 having a left side 14 a top section 16 and a right side 18, usually made of metal having feet 20 at the bottom of the left side 14 and right side 18 with holes being used to allow bolts, etc to secure present invention to the ground.
FIG. 2, shows a partial view of the present invention as a whole. In FIG 2.1 the view shows the left side 14 being fastened together at the top end of the invention and holding the top section 16 together with the left side 14. FIG 2.2 shows the bottom part of the left side 14 to show the feet 20 with holes to be used in connection with bolts, etc to secure the present invention to the ground. FIG. 2.3 shows the left side 14 of the present invention being bolted to an additional layer for security. FIG. 2.4 shows the present invention in with the left side 14 and the right side 18 being exposed and showing the processing interface and control unit 12.
FIG. 3 is a similar view to that of FIG 1 with the present invention being intended for use and additionally showing an inspection area 22 and a gypsum board or other building material 24 which will be used for inspection.
FIG. 4 shows a layout view of how the present invention could be placed for use with two (2) control room/mixer areas 26 and the present invention being mounted to an IR camera and being placed over the inspection area 22.
In view of that, a feature and advantage of the present invention is its ability to provide data that locates voids and lumps.
Another feature and advantage of the present invention is its ability to optionally detect lumps and hot spots. Lump detection can help provide early warnings when the slurry is not being properly mixed.
A feature and advantage of the present invention is its data logging. All data can be logged to text files, local databases or remote databases. Utilities are also available to provide user defined formatting and batch uploads.
A feature and advantage of the present invention is its remote administration. The System fully supports most available remote access software packages including modem, network, and internet based packages.
A feature and advantage of the present invention is its use of infrared technology to detect voids and lumps.
A feature and advantage of the present invention is it groups voids and lumps into three user defined catergories.
A feature and advantage of the present invention is that the system counts voids and lumps in five user-defined zones.
While the invention has been described with reference to the preferred embodiment thereof, it will be appreciated by those of ordinary skill in the art that modifications can be made to the structure and elements of the invention without departing from the spirit and scope of the invention as a whole.
Claims
1. A void detection system comprising a system frame or attachment device, wherein on the frame or being attached somewhere in close proximity to an inspection area is a temperature detecting equipment, processing, interface, and control unit.
2. The system according to claim 1, wherein the detection system uses infrared cameras to locate voids and lumps in gypsum wallboard.
3. The system according to claim 1 , wherein detection system uses high speed image processors to relay data to operators to be used in the detection of voids and lumps in gypsum wallboard.
4. The system according to claim 1 , wherein the detection system uses software being compatible with most available remote access software packages including modem, network and internet based packages.
5. The system according to claim 1 , wherein the voids or lumps are classified according to size and location and all voids are being highlighted.
6. The system according to claim 1, wherein the voids are being calculated, each minute, and added to an on screen graph showing the frequency of voids over the last four (4) hours.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US19333008P | 2008-11-18 | 2008-11-18 | |
| US61/193,330 | 2008-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010059728A1 true WO2010059728A1 (en) | 2010-05-27 |
Family
ID=41557441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2009/064991 WO2010059728A1 (en) | 2008-11-18 | 2009-11-18 | Vei void detection systems |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2010059728A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150065734A (en) * | 2012-10-18 | 2015-06-15 | 요시노 셋고 가부시키가이샤 | method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board |
| US20170045399A1 (en) * | 2015-08-10 | 2017-02-16 | United States Gypsum Company | System and method for manufacuring cementitious boards with on-line void detection |
Citations (3)
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|---|---|---|---|---|
| JPH063303A (en) * | 1992-06-18 | 1994-01-11 | Yamatake Honeywell Co Ltd | Device for inspecting inside of plate-like continuous object |
| DE19953415C1 (en) * | 1999-11-06 | 2001-07-05 | Fraunhofer Ges Forschung | Device for the contactless detection of test specimens |
| EP1526377A1 (en) * | 2003-10-21 | 2005-04-27 | Paolo Benedetti | Method for detecting defects in substantially wood-like products, particularly panels and the like, and associated apparatus |
-
2009
- 2009-11-18 WO PCT/US2009/064991 patent/WO2010059728A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH063303A (en) * | 1992-06-18 | 1994-01-11 | Yamatake Honeywell Co Ltd | Device for inspecting inside of plate-like continuous object |
| DE19953415C1 (en) * | 1999-11-06 | 2001-07-05 | Fraunhofer Ges Forschung | Device for the contactless detection of test specimens |
| EP1526377A1 (en) * | 2003-10-21 | 2005-04-27 | Paolo Benedetti | Method for detecting defects in substantially wood-like products, particularly panels and the like, and associated apparatus |
Non-Patent Citations (2)
| Title |
|---|
| DATABASE INSPEC [online] THE INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB; 1985, DURRANI T S ET AL: "Computer-aided thermal imaging techniques for the inspection of composite materials", XP009128639, Database accession no. 2596990 * |
| ESPRIT '84. STATUS REPORT OF ONGOING WORK 10-14 SEPT. 1984 BRUSSELS, BELGIUM, 1984, ESPRIT '84. Status Report of Ongoing Work North-Holland Amsterdam, Netherlands, pages 571 - 591, ISBN: 0-444-87740-1 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150065734A (en) * | 2012-10-18 | 2015-06-15 | 요시노 셋고 가부시키가이샤 | method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board |
| CN104737006A (en) * | 2012-10-18 | 2015-06-24 | 吉野石膏株式会社 | Method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board |
| EP2910939A4 (en) * | 2012-10-18 | 2015-09-09 | Yoshino Gypsum Co | Method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board |
| AU2013333252B2 (en) * | 2012-10-18 | 2017-03-09 | Yoshino Gypsum Co., Ltd. | Method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board |
| US9851318B2 (en) | 2012-10-18 | 2017-12-26 | Yoshino Gypsum Co., Ltd. | Method of detecting air gap in gypsum-based building board and method of manufacturing gypsum-based building board |
| KR102136296B1 (en) | 2012-10-18 | 2020-07-21 | 요시노 셋고 가부시키가이샤 | Method for detecting voids in gypsum-based construction board and method for producing gypsum-based construction board |
| US20170045399A1 (en) * | 2015-08-10 | 2017-02-16 | United States Gypsum Company | System and method for manufacuring cementitious boards with on-line void detection |
| WO2017027276A1 (en) * | 2015-08-10 | 2017-02-16 | United States Gypsum Company | System and method for manufacturing cementitious boards with on-line void detection |
| JP2018528881A (en) * | 2015-08-10 | 2018-10-04 | ユナイテッド・ステイツ・ジプサム・カンパニー | System and method for producing cementitious board with on-line void detection |
| US10620052B2 (en) | 2015-08-10 | 2020-04-14 | United States Gypsum Company | System and method for manufacturing cementitious boards with on-line void detection |
| JP7025320B2 (en) | 2015-08-10 | 2022-02-24 | ユナイテッド・ステイツ・ジプサム・カンパニー | Systems and methods for manufacturing cementitious boards with online void detection |
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