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公开(公告)号：JPH0972857A
公开(公告)日：1997-03-18
申请号：JP22908995
申请日：1995-09-06
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO HIROMASA , NAGAYAMA TAKASHI , MOTOCHIKA NAGAKAZU
IPC: G01N21/89 , G01N21/88 , G01N21/892 , G01N21/956
Abstract: PROBLEM TO BE SOLVED: To reduce the number of light receiving cells and to shorten the intake time of a light transmission distribution. SOLUTION: A flaw detection apparatus detects a flaw formed in a sheet 12, to be inspected, whose light transmittance is at 1/100000 or higher and 1/100 or lower. The flaw detection apparatus is provided with a line sensor camera 54 in which light receiving cells having the area of a measuring region on the sheet 12, to be inspected, per piece at 10 times or higher and 100 times or lower the area of an assumed minimum point flaw are arranged in a one-dimensional or two-dimensional shape and which is used to measure the light transmission distribution, with a second light source 52, for inspection, which is arranged so as to face the line sensor camera 54 and which irradiates a beam of light toward the line sensor camera 54, with conveyance rollers 26A to 26F which convey the sheet 12, to be inspected, in such a way that the sheet 12 to be inspected is passed between the line sensor camera 54 and the second light source 53 for inspection in a direction crossing the irradiation direction of the light source 52 for inspection and with a flaw detection means which detects a point flaw formed in the sheet 12, to be inspected, on the basis of the measured light transmission distribution.
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公开(公告)号：JPH0972855A
公开(公告)日：1997-03-18
申请号：JP22908795
申请日：1995-09-06
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO HIROMASA , NAGAYAMA TAKASHI , MOTOCHIKA NAGAKAZU
IPC: G01N21/89 , G01N21/88 , G01N21/892 , G01N21/956
Abstract: PROBLEM TO BE SOLVED: To reduce the detection error of a flaw by measuring the light transmission distribution of a beam of light which has been transmitted through a sheetlike object. SOLUTION: In a light-transmission-distribution measuring apparatus, the light transmission distribution of a sheet 12, to be inspected, whose light transmittance is at 1/100000 or higher and 1/100 or lower is measured. The light- transmission-distribution measuring apparatus is provided with a line sensor camera 54 in which light receiving cells are arranged in a one-dimensional shape or a two-dimensional shape and which is used to measure the light transmission distribution, with a second light source 52, for inspection, which is arranged so as to face the line sensor camera 54 and which irradiates a beam of light toward the line sensor camera 54 and with conveyance rollers 26A to 26F which convey the sheet 12, to be inspected, in such a way that the sheet 12 to be inspected is passed between the line sensor camera 54 and the second light source 52 for inspection in a direction crossed with the irradiation direction of the second light source 52 for inspection.
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公开(公告)号：JPH0972856A
公开(公告)日：1997-03-18
申请号：JP22908895
申请日：1995-09-06
Applicant: TORAY INDUSTRIES
Inventor： SASAMOTO HIROMASA , NAGAYAMA TAKASHI , MOTOCHIKA NAGAKAZU
IPC: G01N21/956 , G01N21/88 , G01N21/89 , G01N21/892
Abstract: PROBLEM TO BE SOLVED: To prevent the blooming of a measuring means and to prevent the degradation of a light source due to the repetition of an ON-operation and an OFF-operation. SOLUTION: In a light-transmission-distribution measuring apparatus, the light transmission distribution of a sheet 12, to be inspected, whose light transmittance is at 1/100000 or higher and 1/100 or lower is measured. The light-transmission- distribution measuring apparatus is provided with a line sensor camera 54 in which light receiving cells are arranged in a one-dimensional or two-dimensional shape and which is used to measure the light transmission distribution, with a second light source 52, for inspection, which is arranged so as to face the line sensor camera 54 and which irradiates a beam of light toward the line sensor camera 54, with conveyance rollers 26A to 26F which convey the sheet 12, to be inspected, in such a way that the sheet 12 to be inspected is passed between the line sensor camera 54 and the second light source 52 for inspection in a direction crossed with the irradiation direction of the second light source 52 for inspection and with a mask part 74 which lowers the optical intensity of the light source 52 with which the line sensor camera 54 is irradiated.
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公开(公告)号：JPH04279892A
公开(公告)日：1992-10-05
申请号：JP6756391
申请日：1991-03-08
Applicant: TORAY INDUSTRIES
Inventor： MOTOCHIKA NAGAKAZU , MIYAMOTO SHIGEAKI , OSADA SHIGERU
Abstract: PURPOSE:To judge appropriate driving of an operating means, to know load variation as time goes by, and to detect malfunction of such as PID adjustor by detecting the on-rate of electrification actually carried out in an ON/OFF control system. CONSTITUTION:An on-rate counter 9 is connected to an electrification circuit 8 of an operating means that has an electrification circuit for ON/OFF control, and the electrification ON-time of the electrification circuit 8 is detected, while the rate of electrification 0N-time to predetermined cycle is calculated as on- rate, and the on-rate thus calculated is output.
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公开(公告)号：JPH0671661A
公开(公告)日：1994-03-15
申请号：JP22827192
申请日：1992-08-27
Applicant: TORAY INDUSTRIES
Inventor： IKEGAMI TETSUO , OKASHIRO HIDETOSHI , MIYAMOTO SHIGEAKI , MOTOCHIKA NAGAKAZU
Abstract: PURPOSE:To provide a manufacturing device for a resin film which can manufacture a high-quality film stably at a high speed by a method wherein a thickness of a water film on a casting drum is controlled appropriately. CONSTITUTION:A manufacturing device of a resin film is provided with a casting drum 4, a resin supply device 5 for supply of a sheetlike molten resin 5a to the casting drum 4, a water film forming part 7 for arrangement of the water film to the casting drum 4 and an infrared moisture meter 110 for measurement of a thickness of the water film on the casting drum 4. The water film forming device 7 is adjusting the thickness of the water film to be formed on the casting drum 4 based on a measured result by the infrared moisture meter 110.
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Patent Agency Ranking
公开(公告)号：JPH04286567A
公开(公告)日：1992-10-12
申请号：JP7035891
申请日：1991-03-12
Applicant: TORAY INDUSTRIES
Inventor： UEDA KAZUYOSHI , MOTOCHIKA NAGAKAZU , OSADA SHIGERU
Abstract: PURPOSE:To prevent the generation of various kinds of trouble caused by oscillation during acceleration/deceleration and obtain the optimum thickness unevenness moderating effect by controlling the reciprocating speed performed by an oscillation device into the speed proportional to the sheet material conveying speed. CONSTITUTION:Oscillation for moderating the unevenness of film thickness in raw material 2 is performed by reciprocating a winding-out frame 15 by a hydraulic cylinder 17. In the speed control of this oscillation, the oscillation speed Vo proportional to the film carrier speed Vc detected from the speed of a guide roll 5 and the like is set previously, so that the oscillation speed Vo corresponding to the detected speed Vc is read out and set as the command value of the oscillation speed at that time. The position in the film width direction is detected by a magnetic scale 23, and the actual oscillation speed is computed on the basis of the difference between the present detection value and the preceding detection value. Solenoid flow control valves S1, S2 then control in such a way that actual oscillation speed coincides with the command value.
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公开(公告)号：JPH04286565A
公开(公告)日：1992-10-12
申请号：JP7221691
申请日：1991-03-13
Applicant: TORAY INDUSTRIES
Inventor： UEDA KAZUYOSHI , MOTOCHIKA NAGAKAZU , OSADA SHIGERU
IPC: B65H18/26 , B65H18/10 , B65H23/195 , G05D15/01
Abstract: PURPOSE:To enable control into the desired pressing force even in the case of using a contact roll of different self-weight by controlling the air pressure of an air cylinder in such a way as to place the contact roll into the preset neutral position before bringing the contact roll into contact with a take-up core. CONSTITUTION:The position of a roll 13 is detected by a photo-sensor 21 before a take-up core 15 is brought into contact with a contact roll 13. The air pressure of an air cylinder 12 is then controlled through an electropneumatic converter 19 so that this detected position is placed into a neutral position. At this time, the self-weight elements of the roll 13 and an arm 16 are balanced with the force by the air cylinder 12, and the roll 13 stands still in the neutral position. The air pressure in this neutral position is stored as the base pressure, and air pressure required for the generation of pressing force to the take-up core 15 is added to this base pressure at the take-up time so as to be made into the actual control pressure for performing take-up. The pressing force can be thereby controlled accurately regardless of change in the self-weight of the contact roll 13.
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公开(公告)号：JPH04280756A
公开(公告)日：1992-10-06
申请号：JP6756291
申请日：1991-03-08
Applicant: TORAY INDUSTRIES
Inventor： UEDA KAZUYOSHI , MOTOCHIKA NAGAKAZU , OSADA SHIGERU
Abstract: PURPOSE:To prevent the weaving when a wound layer body is wound and prevent the drift or snaking when the wound layer body is unwound by suppressing the residual tension of the wound layer body low, and suppressing the air biting factor near the winding end section of the wound layer body in particular to a preset value or below. CONSTITUTION:The winding tension is reduced and the winding speed is lowered near the winding end of a wound layer body to control the air biting factor near the winding end to a preset value or below in the winding method of a plastic film. The residual tension at a surface layer section is made equal to or below the residual tension at an inner layer section, and the air biting factor at the surface layer section is suppressed to the preset value or below in the wound layer body of the plastic film.
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公开(公告)号：JPH07280520A
公开(公告)日：1995-10-27
申请号：JP7223894
申请日：1994-04-11
Applicant: TORAY INDUSTRIES
Inventor： TORIKAI JUN , HIRATA HAJIME , MOTOCHIKA NAGAKAZU , KOJIMA HIDEYUKI , YAMAMOTO MICHIYO
Abstract: PURPOSE:To measure a thickness of a thin film with high accuracy by correcting the effect of distortion spectroscopy intensity of an interference light due to the thin film in accordance with the spectroscopy penetration characteristic of a thin film material. CONSTITUTION:A white measurement light from a light source 11 is emitted on a color filter film 5 with a color liquid crystal to be measured, a measurement light which is reflected thereby to become an interference light is introduced into a spectroscopy section 3 to be separated by a plane diffraction grating 34 so that components in a prescribed wavelength range are focused on an image sensor 36 to form an image 35. An image sensor drive circuit 37 reads an optical intensity of the image 35 by each image to transmit to an operation section 4 via a buffer amplifier 38 as a voltage signal so that the measurement spectroscopy intensity F (lambda) is obtained. A ratio (modulation signal) X (lambda) between intensity F (lambda) and an average spectroscopy intensity G (lambda) that was obtained beforehand by the same measurement order in terms of a plurality of samples with thin films of which kinds are the same as the coating film 5 having different thickness, is obtained, then in the peak values of plural wavelengths (maximum wavelength and minimum wavelength), the thickness is calculated from the adjacent maximum wavelengths or minimum wavelengths.
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公开(公告)号：JPH04286568A
公开(公告)日：1992-10-12
申请号：JP7221791
申请日：1991-03-13
Applicant: TORAY INDUSTRIES
Inventor： UEDA KAZUYOSHI , MOTOCHIKA NAGAKAZU , TAGANO KIKUO
IPC: B29C31/08 , B65H18/10 , B65H23/192 , B65H26/00 , G05D13/00
Abstract: PURPOSE:To perform the control of sheet material conveying speed with good accuracy and repeatability and control to obtain the optimum air induction rate in every winding layer of a take-up product roll. CONSTITUTION:In a sheet material slitter, the sheet material conveying speed is controlled according to the preset optional speed pattern, in proportion to either the winding diameter or winding length of a take-up product roll.
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