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11. 发明专利

JPH0814826A IMAGE PICKUP DEVICE FOR PROCESSING IMAGE 失效
公开(公告)号：JPH0814826A
公开(公告)日：1996-01-19
申请号：JP14501994
申请日：1994-06-27
申请人： MACH BUIJIYON TECHNO SERVICE K , DAIWA CAN CO LTD
发明人： OTSUKA KENICHI , OKADO MICHIO , MASUDA MASAYUKI
IPC分类号： G01B11/00 , G06T1/00
摘要： PURPOSE:To precisely inspect a printed character on a measurement object by evenly lighting a metallic flat section (area with high reflection) or a curved section (area difficult for even lighting) as the curved surface of a can bottom. CONSTITUTION:Light is emitted toward object surface 12 from a light source 18 and converted to diffused light 26 via a diffusion plate 20 for irradiation to the surface 12. Also, the front end 22a of a pinhole lens 22 at a position adjacent to a transmission hole 28 through the center of the plate 20, or inserted therein, converges the optical image 30 of the surface, and makes the image 30 incident on a camera 24. This camera 24 generates the pickup image signal of the incident optical image.

12. 发明专利

JPH02216023A JUDGMENT OF POSITIVE INTERNAL PRESSURE FOR SEALED CONTAINER 失效
公开(公告)号：JPH02216023A
公开(公告)日：1990-08-28
申请号：JP3803389
申请日：1989-02-16
申请人： DAIWA CAN CO LTD
发明人： MASUDA MASAYUKI
IPC分类号： G01L7/00 , G01L11/00 , G01M99/00
摘要： PURPOSE:To enable judgment of the propriety of a positive internal pressure of a container by combining loads working on a pair of rollers positioned facing each other. CONSTITUTION:Loads working on a pair of rollers 11 and 11 positioned facing each other are combined and based on a value of the combined load, the propriety of a positive internal pressure of a sealed container A is judged. Hence, whether the sealed container A advancing at a high speed collide with the pair of rollers 11 simultaneously or it collides with the other roller 11 after the collision with one roller, the combined value of the loads received by both the rollers is almost the same as long as the positive internal pressure is the same. Thus, a judgement is accomplished little affected by a change in the degree of the intensity of the collision thereby achieving a higher accuracy of the judgment.

13. 发明专利

JP2004117374A Apparatus for inspecting internal pressure of can 有权
标题翻译：检查CAN内部压力的装置
公开(公告)号：JP2004117374A
公开(公告)日：2004-04-15
申请号：JP2003401840
申请日：2003-12-01
申请人： Daiwa Can Co Ltd , 大和製罐株式会社
发明人： MASUDA MASAYUKI , TANIGUCHI KATSUHIKO
IPC分类号： G01L11/00 , G01M3/26 , G01M99/00 , G01N3/08
摘要： PROBLEM TO BE SOLVED: To provide an apparatus for inspecting the internal pressure of a can which conducts precise inspection of the internal pressure of the can regardless of the more or less error of the diameter of a can body.
SOLUTION: The apparatus comprises a conveyor which puts and transfers the can 12, a pair of rollers 14a, 14b, 54a, 54b which are placed on both sides of the conveyor so that they face with each other at a distance shorter than the diameter of the can 12, hold the can body of the transferred can 12 from the both sides, and press the can body radially inwardly, a detecting part which detects the reaction force of the pressed can body. The apparatus further comprises a first measuring means 10 and a second measuring means 50 which are placed at a predetermined distance along the moving direction of the conveyor and a driving part which rotates the pair of rollers 14a, 14b of the first measuring means 10 at different peripheral velocities to rotate the can 12. In the apparatus, the rotating velocity difference between the rollers 14a and 14b of the first measuring means 10 sets a radial relative angular difference pressed by the first measuring means 10 and the second measuring means 50 to be 90 degrees ± 30 degrees.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于检查罐的内部压力的装置，其能够精确地检查罐的内部压力，而不管罐体直径的误差多少。解决方案：该设备包括一个输送机，该输送机放置并传送罐12，一对辊子14a，14b，54a，54b，它们放置在输送机的两侧，使得它们彼此面对的距离短于罐体12的直径从两侧保持转移罐12的罐体，并且径向向内按压罐体;检测部件，其检测压制罐体的反作用力。该装置还包括第一测量装置10和第二测量装置50，该第一测量装置10和第二测量装置50沿着输送机的移动方向以预定的距离放置;以及驱动部分，该第一测量装置10和第二测量装置50以不同的方式使第一测量装置10的一对辊14a，14b旋转圆周速度以旋转罐12.在该装置中，第一测量装置10的辊14a和14b之间的转速差设定由第一测量装置10和第二测量装置50按压的径向相对角差为90 度±30度。版权所有（C）2004，JPO

14. 发明专利

JP2001009009A MICROWAVE STERILIZATION METHOD 失效
公开(公告)号：JP2001009009A
公开(公告)日：2001-01-16
申请号：JP18388299
申请日：1999-06-29
申请人： DAIWA CAN CO LTD
发明人： MATSUNAGA MASAMI , TAKATOMI TETSUYA , MASUDA MASAYUKI , HAMAZAKI JUN
IPC分类号： A23L3/01 , A61L2/12
摘要： PROBLEM TO BE SOLVED: To provide a microwave sterilization method which is capable of sufficiently sterilizing the object to be sterilized including the inside walls of a container even when the object to be sterilized is housed in the container having a gap part and is hermetically sealed therein. SOLUTION: The microwave transmittable housing container 114 in which the object to be sterilized is housed having the gap part and is hermetically sealed therein is housed in a hermetic container 120 which has the inside volume approximate to the volume of this housing container 114, allows the transmission of the microwaves and is substantially not deformed at a prescribed sterilization temperature and after this hermetic container is hermetically sealed, pressurized steam is introduced by a steam introducing pipe 122 into the hermetic container 120 in such a manner that the internal pressure of the housing container 114 and the internal pressure of the hermetic container 120 are approximately balanced while the hermetic container 120 is moved, during which the hermetic container 120 is irradiated with the microwaves from its outside. The inside of this hermetic container 120 is kept at relative humidity 50 to 100%, pressure 1.0 to 3.0 kg/cm2 and temperature >=100 deg.C and the object to be sterilized is subjected to the sterilization for the prescribed time. The housing container 114 is thereafter cooled.

15. 发明专利

JPH0862087A METHOD AND DEVICE FOR DETECTING LEAK CAN 失效
公开(公告)号：JPH0862087A
公开(公告)日：1996-03-08
申请号：JP21526394
申请日：1994-08-18
申请人： DAIWA CAN CO LTD
发明人： MASUDA MASAYUKI
IPC分类号： G01L11/00 , G01M3/26 , G01M3/34
摘要： PURPOSE: To provide a method and device for detecting a leak can quickly and positively. CONSTITUTION: The inner pressure of a can is measured by a first means 12 for detecting the pressure in the can, the amount of detected inner pressure value is printed on the can by a printing means 14, the inner pressure of the can is measured again after sterilization by a second means 16 for detecting the pressure in the second can, a printed inner-pressure value is read from the can fed by the second means for detecting the pressure in the second can, and the inner-pressure value read by a reader 18 is compared with an inner pressure detected by the means for detecting the inner pressure in the second can by a comparison judgment circuit 20, thus detecting the leak can.

16. 发明专利

JPH0743233A DEVICE FOR DISCRIMINATING INTERNAL PRESSURE OF CAN 失效
公开(公告)号：JPH0743233A
公开(公告)日：1995-02-14
申请号：JP20248793
申请日：1993-07-26
申请人： DAIWA CAN CO LTD
发明人： MASUDA MASAYUKI , HORIKAWA NOBUHARU
IPC分类号： G01L11/00 , G01M3/34
摘要： PURPOSE:To discriminate the propriety of the internal pressure of cans containing goods to be measured without receiving any influence from temperature regardless of the magnitude of the pressure by calculating a correcting value for a can to be measured based on the internal pressure and temperature, and correcting the internal pressure at a prescribed temperature by using the correcting value. CONSTITUTION:Cans 12 are put on a belt conveyor 10 and an electromagnetic 14 and microphone 16 are provided above the cans 12 as internal pressure measuring means to give impacts to the lid parts 12a of the cans 12 passing under the magnet 14 by applying magnetic forces and detect echoes from the parts 12a with the microphone 16. An infrared temperature sensor 22 which measures the surface temperature of the cans 12 is positioned on the right side of the cans 12 as a can temperature measuring means and the output of the sensor 22 is inputted to a correcting value calculating circuit 20. A correcting value calculated by the circuit 20 is inputted to a frequency correcting circuit 24 provided as an internal pressure correcting means and a frequency outputted from a frequency detecting circuit 18 based on the correcting value is corrected to the frequency value at a reference temperature. The corrected frequency value is inputted to a discrimination circuit 26 which discriminates the propriety of the internal pressure of the cans 12.

17. 发明专利

JPH05332869A 失效
公开(公告)号：JPH05332869A
公开(公告)日：1993-12-17
申请号：JP15740092
申请日：1992-05-26
申请人： DAIWA CAN CO LTD
发明人： MASUDA MASAYUKI
IPC分类号： G01L11/00 , G01M3/36
摘要： PURPOSE:To measure the pressure in a can accurately by bringing the lowest point of an edge detecting roller into contact with the tip of the edge of a can-cap double sealing part, bringing the lowest point of a recess-part detecting ring into contact with the center of the recess part of the can cap part, and detecting the relative position changes of the roller and the ring in the up and down directions. CONSTITUTION:A groove 118 is formed at the outer surface of an edge detecting roller 110. A recess-part detecting ring 112 is arranged in the groove. The position of a can 140 is determined so that the surface part of the outer-surface side of the ring 112 comes into contact with the recess part of the can cap part and passes the part when the can 140, which is sent with a belt conveyer 138, passes the lower parts of the roller 110 and the ring 112. When the surface part of the outer-surface side of the ring 112 comes into contact with a tip 144 of the can edge part, the lowest points of the ring 112 and the roller 110 become the same height. When the can advances, only the ring 112 rides over the tip 144 and reaches a central recess part 142 with the lowest point of the roller 110 in contact with the tip 144. Therefore, the height difference between the tip 144 and the central recess part 142, i.e., the deformation caused by the pressure in the can, can be accurately measured by detecting the relative position changes in the up and down directions of the roller 110 and the ring 112. Thus, the pressure in the can be measured.

18. 发明专利

JPH05332868A 失效
公开(公告)号：JPH05332868A
公开(公告)日：1993-12-17
申请号：JP16850092
申请日：1992-06-03
申请人： DAIWA CAN CO LTD
发明人： MASUDA MASAYUKI
IPC分类号： G01L11/00
摘要： PURPOSE:To perform the accurate inspection of the pressure in a can all the time regardless of the detected oscillatory wave pattern. CONSTITUTION:An apparatus for inspecting the pressure in a can has the parts performing the following functions. An exciting means 16 forcibly excites free oscillation in an elastic wall surface 12a of a can 12. An oscillator-wave detecting means 16 detects the oscillatory wave from the elastic wall surface 12a of the can 12. A Fourier transformation means 22 performs Fourier transformation of the oscillatory wave, which is detected with the oscillator-wave detecting means 16, and separates the oscillatory wave into a plurality of the oscillatory-wave components. A frequency selecting means 24 selects the oscillator-wave component, which is present in a frequency band having the correlation with the pressure in the can, out of the oscillatory-wave components, which are separated with the Fourier transformation means 22. A judging means 28 judges whether the frequency of the oscillatory wave, which is selected with the frequency selecting means 24, is located in the intended region or not and outputs the defective internal pressure signal when the frequency is located at the outside of the intended region.

19. 发明专利

JPH05126763A CAN WITH TONGUED CAP INSPECTING APPARATUS 失效
公开(公告)号：JPH05126763A
公开(公告)日：1993-05-21
申请号：JP31741091
申请日：1991-11-06
申请人： DAIWA CAN CO LTD , MITSUBISHI ELECTRIC CORP
发明人： MASUDA MASAYUKI , YOSHIDA MAMORU , SENBA TAKASHI
IPC分类号： G01N21/90 , G01L11/00 , G06T1/00
摘要： PURPOSE:To perform accurate inspection of a tongue exposed part regardless of the material and the like of a can or paint. CONSTITUTION:A can with tongued cap inspecting apparatus has a camera 22 for emitting light from the slant upper part of the outside of the can-cap winding and tightening part of a can 10 under inspection, cameras 24, 26, 28 and 30 for photographing the images in the vicinities of the can-cap curling and tightening part from the side part of the can-cup curling and tightening part and an image processing means 38. The image processing means 38 detects whether the bright part indicating the tongue exposed edge is present or not at the dark part at the boundary between the can-cap curling and tightening part and the can drum based on the image and processes the results.

20. 发明专利

JPH0474944A DISCRIMINATING METHOD OF MAINTENANCE OF SEALING PERFORMANCE OF VESSEL 失效
公开(公告)号：JPH0474944A
公开(公告)日：1992-03-10
申请号：JP18532990
申请日：1990-07-16
申请人： DAIWA CAN CO LTD
发明人： MASUDA MASAYUKI
IPC分类号： G01M3/26
摘要： PURPOSE:To enable discovery of a faulty article only by first inspection and thereby to improve discrimination efficiency by a method wherein values obtained by measuring the vacuum of all cans immediately after sterilization cooling are compared with a vacuum distribution range and immediate exclusion is conducted when the values are beyond the upper and lower limits of the range. CONSTITUTION:On the basis of a vacuum distribution range set in regard to a vessel being the same kind with a vessel to be discriminated and having an excellent sealing performance, the vacuum of each vessel to be discriminated which is measured immediately after sterilization cooling thereof is compared with the range and it is known thereby whether the value of the vacuum is beyond the vacuum distribution range or not. This vacuum distribution range is obtained by a method wherein the vacuum of all sample cans of the vessel of the same kind with the vessel to be discriminated is measured immediately after the sterilization cooling, all of these sample cans are disjointed /thereafter to make a distinction between faulty cans in terms of the sealing performance and normal cans and a statistical process and calculation are conducted with the respective vacuum of the cans recognized as normal used as population. Accordingly, the faulty vessel can be excluded without reinspecting it out of those discriminated to be good cans even in the second inspection and after, and thereby discrimination efficiency is improved.

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