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公开(公告)号：ID24542A
公开(公告)日：2000-07-27
申请号：ID991144
申请日：1999-12-13
Applicant: TORAY INDUSTRIES
Inventor： YUSHIO HARUHISA , NISHIDA TAKANORI , HAYASHI KOJI , OKASHIRO HIDETOSHI , IINUMA TATSU
Abstract: A film production process having a film tentering step and a recovering step, characterized by detecting the side edge positions of the film running toward the recovering step, transferring the film running direction based on the detected information, and controlling the clamp start position of the film arriving at a tenter in the tentering step by clamp means, in the transverse direction of the film. A film production process having a film tentering step, characterized by controlling the clamp start position of a film arriving at a tenter by clamp means, in the range from 5 mm to 1,000 mm from the tip of the film in the longitudinal direction of the film.
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公开(公告)号：ID21084A
公开(公告)日：1999-04-15
申请号：ID990019
申请日：1998-05-27
Applicant: TORAY INDUSTRIES
Inventor： TOYODA KATSUYA , OKUBO KENICHI , OKASHIRO HIDETOSHI
IPC: B29C47/88
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公开(公告)号：DE3875433D1
公开(公告)日：1992-11-26
申请号：DE3875433
申请日：1988-07-15
Applicant: TORAY INDUSTRIES
Inventor： HAYASHIDA SHINICHIRO , YOROZU SHUNICHI , OKASHIRO HIDETOSHI
Abstract: A sheet material 26 is formed by delivering a web 22 of molten material from a die 21 to a cooling drum 23, biaxially stretching the resultant sheet by means of an apparatus 24 providing longitudinal stretching and an apparatus 25 providing lateral stretching and winding up the sheet 26 by means of a winder 27. The thickness distribution across the sheet is measured at each of positions 28, 29, 30 and the final thickness distribution at position 30 is automatically controlled by a control processing unit CPU 31. In this method of control, a correspondence relationship between adjustment of adjusting means 32 arranged on the die 21 and variation of thickness distribution of the sheet material 26 after formation thereof is sequentially estimated using a Kalman filter built into the control processing unit CPU 31 and from the estimated relationship the adjusting means 32 are controlled by optimum amounts in order to enable the thickness distribution to approach a target distribution. The accuracy of thickness control of the sheet material can be greatly increased and also the accurate control can automatically follow any variation in the conditions of a sheet forming process.
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公开(公告)号：DE69930193T2
公开(公告)日：2006-07-27
申请号：DE69930193
申请日：1999-12-07
Applicant: TORAY INDUSTRIES
Inventor： YUSHIO HARUHISA , NISHIDA TAKANORI , HAYASHI KOJI , OKASHIRO HIDETOSHI , IINUMA TATSU
Abstract: A film production process having a film tentering step and a recovering step, characterized by detecting the side edge positions of the film running toward the recovering step, transferring the film running direction based on the detected information, and controlling the clamp start position of the film arriving at a tenter in the tentering step by clamp means, in the transverse direction of the film. A film production process having a film tentering step, characterized by controlling the clamp start position of a film arriving at a tenter by clamp means, in the range from 5 mm to 1,000 mm from the tip of the film in the longitudinal direction of the film.
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公开(公告)号：DE69930193D1
公开(公告)日：2006-05-04
申请号：DE69930193
申请日：1999-12-07
Applicant: TORAY INDUSTRIES
Inventor： YUSHIO HARUHISA , NISHIDA TAKANORI , HAYASHI KOJI , OKASHIRO HIDETOSHI , IINUMA TATSU
Abstract: A film production process having a film tentering step and a recovering step, characterized by detecting the side edge positions of the film running toward the recovering step, transferring the film running direction based on the detected information, and controlling the clamp start position of the film arriving at a tenter in the tentering step by clamp means, in the transverse direction of the film. A film production process having a film tentering step, characterized by controlling the clamp start position of a film arriving at a tenter by clamp means, in the range from 5 mm to 1,000 mm from the tip of the film in the longitudinal direction of the film.
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Patent Agency Ranking
公开(公告)号：DE3875433T2
公开(公告)日：1993-04-22
申请号：DE3875433
申请日：1988-07-15
Applicant: TORAY INDUSTRIES
Inventor： HAYASHIDA SHINICHIRO , YOROZU SHUNICHI , OKASHIRO HIDETOSHI
Abstract: A sheet material 26 is formed by delivering a web 22 of molten material from a die 21 to a cooling drum 23, biaxially stretching the resultant sheet by means of an apparatus 24 providing longitudinal stretching and an apparatus 25 providing lateral stretching and winding up the sheet 26 by means of a winder 27. The thickness distribution across the sheet is measured at each of positions 28, 29, 30 and the final thickness distribution at position 30 is automatically controlled by a control processing unit CPU 31. In this method of control, a correspondence relationship between adjustment of adjusting means 32 arranged on the die 21 and variation of thickness distribution of the sheet material 26 after formation thereof is sequentially estimated using a Kalman filter built into the control processing unit CPU 31 and from the estimated relationship the adjusting means 32 are controlled by optimum amounts in order to enable the thickness distribution to approach a target distribution. The accuracy of thickness control of the sheet material can be greatly increased and also the accurate control can automatically follow any variation in the conditions of a sheet forming process.
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7.发明公开METHOD AND APPARATUS FOR PRODUCING THERMOPLASTIC RESIN SHEET 失效VEFAHREN UNDGERÄTZUR HERSTELLUNG EINES BLATTS AUS THERMOPLASTISCHEN HARZ
公开(公告)号：EP0928676A4
公开(公告)日：2002-02-06
申请号：EP98921839
申请日：1998-05-27
Applicant: TORAY INDUSTRIES
Inventor： TOYODA KATSUYA , OKUBO KENICHI , OKASHIRO HIDETOSHI
IPC: B29C47/88
CPC classification number: B29C47/887 , B29C47/0021 , B29C47/8845
Abstract: A method of producing a thermoplastic resin sheet by extruding a molten thermoplastic resin into a sheet form through a spinnert, cooling and solidifying the sheet on a cooling drum by applying an electrostatic charge, characterized by casting the resin by using a conductive tape which (A) forms an electrode having a substantially rectangular section, the thickness (mm) and the width Y (mm) satisfying simultaneously the relation: (1) 0.01
Abstract translation: 一种热塑性树脂片材的制造方法，其特征在于，通过从模具中挤出熔融的热塑性树脂片材，并根据所述静电充电方法将所述片材冷却并固化在冷却鼓上，包括使用导电带，（A） 其截面几乎形成为具有满足以下公式（1）至（3）的厚度为X（mm）和宽度Y（mm）的矩形。
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公开(公告)号：JP2002307529A
公开(公告)日：2002-10-23
申请号：JP2001118398
申请日：2001-04-17
Applicant: TORAY INDUSTRIES
Inventor： TANAKA SUKEYUKI , FURUNO RYOJI , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a filter for a molten resin which inhibits the residence of a gas which becomes a cause for a flaw of resin moldings, and to provide a method for manufacturing the resin moldings using the filter. SOLUTION: In the filter for the molten resin, a filtered molten resin flowing out of a leaf disc filter is introduced into an outer polymer flow path between an outer pipe and an inner pipe of a double tubular body which is mounted inside the leaf disc filter and has a inner polymer flow path formed inside the inner pipe. Next, a part or the entirety of the molten resin is allowed to flow into the inner polymer flow path, and the gas present in a region where the outer polymer flow path communicates with the inner polymer flow path is evacuated from the outlet of the filter by the fluidization of the polymer.
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公开(公告)号：JP2000079621A
公开(公告)日：2000-03-21
申请号：JP25291198
申请日：1998-09-07
Applicant: TORAY INDUSTRIES
Inventor： NISHIDA TAKANORI , YAMAKAWA KATSUSHI , OKASHIRO HIDETOSHI
Abstract: PROBLEM TO BE SOLVED: To make it possible to upgrade the quality and form a coating film rapidly by providing a first negative pressure zone which comes into contact with the resin coating film on the upstream side of the moving direction of a resin coating film casting face rather than a point at which the resin coating film drops on the coating face, a second negative pressure zone which shows a lower degree of reduced pressure in contact with the resin coating film than that of the first negative pressure zone and a third negative pressure zone which shows a higher degree of reduced pressure than that of the first negative pressure zone respectively. SOLUTION: A first negative pressure zone 4 has the same width direction length and the same contact part as a solution coating film 3 and a second negative pressure zone 5 which is non-contact with the coating film 3 is arranged in parallel with the first negative pressure zone 4 and a third negative pressure zone which is non-contact with the coating film 3 is arranged at the end part of the width direction of the coating film 3 in the first negative pressure zone 4. These three negative pressure zones from a reduced pressure zone in the solution coating film 3 respectively and maintain an optimal pressure balance by controlling the degree of reduced pressure within an optimal range and thus contribute to the adhesion of a resin coating film to a casting face 14a. The third negative pressure zone shows the same degree of reduced pressure at both end parts and also shows a higher degree of reduced pressure than that of the first negative pressure zone 4. The degree of the reduced pressure of the second negative pressure zone 5 is lower than that of the first negative pressure zone 4. Further, these negative pressure zones 4, 5 are arranged on the upstream side in the moving direction of a belt 14.
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公开(公告)号：JPH1120004A
公开(公告)日：1999-01-26
申请号：JP18744997
申请日：1997-06-27
Applicant: TORAY INDUSTRIES
Inventor： OKASHIRO HIDETOSHI , TOYODA KATSUYA , OKUBO KENICHI
IPC: B29C47/88 , B29K101/12 , B29L7/00
Abstract: PROBLEM TO BE SOLVED: To efficiently obtain a sheet at high speed without impairing quality by a method wherein the position of a blade-like electrostatic applying electrode to a cooling rotator is adjusted biaxially and, at the same time, the angle between the normal direction of the cooling rotator and the blade-like electrostatic applying electrode is adjusted. SOLUTION: A blade-like electrostatic applying electrode 4 is provided in the neighborhood of the landing point 8 of a thermoplastic resin sheet to a cooling rotator 2 so as to bring the thermoplastic resin sheet 3 into close contact with the cooling rotator 2. Both the end parts of the blade-like electrostatic applying electrode 4 are covered with insulating members 5, the end part of each of which is supported with a holding part 6. The holding part 6 is made slidable on a fixed stand 13 and horizontally adjusted with a bolt 10 under the condition that a stay 11 cats as a fulcrum and vertically adjusted with the hold 12. Further, with the rotating devices 14 at both the end parts of the electrostatic applying electrode 4, the angle between the normal direction of the cooling rotator 2 and the blade-like electrostatic applying electrode 4 is preperly adjusted. As a result, the applying electrode can be easily and accurately adjusted to an optimum position.
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