公开(公告)号：JPH04280766A

公开(公告)日：1992-10-06

申请号：JP6756191

申请日：1991-03-08

Applicant: TORAY INDUSTRIES

Inventor： UEDA KAZUYOSHI ,  MOTOCHIKA NAGAKAZU ,  OSADA SHIGERU

IPC: B29C31/08 ,  B65H18/10 ,  B65H18/26 ,  B65H23/198 ,  B65H26/04

Abstract: PURPOSE:To correctly control the actual winding tension to a target value by correctly grasping the mechanical loss changed by the rotating speed of a winding shaft or as the time elapses and the mechanical loss component changed in response to the weight of a winding product roll or the face pressure of a contact pressure roll, and performing the optimum mechanical loss compensation. CONSTITUTION:The rotating speed of a winding drive source is automatically changed in the winding core fitting no-load state, the load current of the winding drive source is detected and stored, and the load current and the winding tension generating instruction current partition are added to obtain the instruction current to the winding drive source. The winding drive source is rotated in the winding product roll fitting no-load state, the mechanical loss component caused by the product weight is calculated, and it is added to the instruction current to the winding drive source. The mechanical loss component caused by the face pressure of a contact pressure roll is detected and calculated, and it is added to the instruction current to the winding drive source.

公开(公告)号：JPH08133537A

公开(公告)日：1996-05-28

申请号：JP30551894

申请日：1994-11-14

Applicant: TORAY INDUSTRIES

Inventor： ANZAI TOUCHI ,  UEDA KAZUYOSHI ,  KAWAJI NAOKI

IPC: B65H23/025

Abstract: PURPOSE: To provide a plastic film winder by which a winding defect is not caused and a plastic film winding roll excellent in a winding posture can be obtained at high speed. CONSTITUTION: In a plastic film winder to wind a plastic film 8 while pressing it by a contact pressure roller 2, the plastic film winder has the contact pressure roller 2 composed of a roller on which an outside diameter of a roller lengthwise directional center part is smaller than an outside diameter of both end parts and a changing curve 3 of its outside diameter is approximated to a curve of a high order not less than a second order in the roller lengthwise direction.

公开(公告)号：JPH08108469A

公开(公告)日：1996-04-30

申请号：JP27039494

申请日：1994-10-06

Applicant: TORAY INDUSTRIES

Inventor： ANZAI TOUCHI ,  SUGIYAMA YOSHIAKI ,  UEDA KAZUYOSHI

IPC: B29C71/02 ,  B29C55/12 ,  B29K67/00 ,  B29L7/00 ,  C23C14/12 ,  C23C14/20

Abstract: PURPOSE: To improve rewinding characteristics during an evaporation process, and provide high precision of a margin whose width is narrow of an evaporation film for capacitor, especially, and which is a concern generated at the time of forming the margin. CONSTITUTION: This biaxial oriented polyester film for vacuum evaporation has creep elastic recovery rate of a slit-shaped wound object in a polyester film to be thermal-fixed after biaxial orientation of not less than 0.96. The creep elastic recovery rate ϕ is a value obtained from ϕ=L/L0 , where L0 : elongation at the time of the initial load and L: elastic recovery amount when 98% of a load is removed after creep test.

公开(公告)号：JPH04286566A

公开(公告)日：1992-10-12

申请号：JP7221891

申请日：1991-03-13

Applicant: TORAY INDUSTRIES

Inventor： UEDA KAZUYOSHI ,  MOTOCHIKA NAGAKAZU ,  OSADA SHIGERU

IPC: B65H18/26

Abstract: PURPOSE:To prevent operation in the state of the actual pressing force of a contact roll remaining abnormal by detecting/displaying the air pressure in an air cylinder of in a position very close to the air cylinder in an air pipeline through an electropneumatic converter, thereby rapidly discovering the air leak of the air pipeline or the like and the abnormality of an electropneumatic converter control system. CONSTITUTION:A contact roll 13 for pressing each take-up product roll 3 is rotataly supported at the lower end part of an arm 15, and the roll 3 is provided with the specified pressing force by pushing the arm 15 by an air cylinder 12. The air pressure to the cylinder 12 is set to the specified value or the specified pattern by a controller 16, and its output signal 18 is sent to an electropneumatic converter 19 so that the initial air pressure 20 is controlled into target control pressure and then sent to the cylinder 12 through an air pipeline 21. An electropneumatic converter 22 is connected to the pipeline 21, in a position very close to the cylinder 12 or directly to the cylinder 12. The air pressure thus detected is inputted as a detection signal, and the detected air pressure is displayed on an appropriate display means 24.

公开(公告)号：JPH04286564A

公开(公告)日：1992-10-12

申请号：JP7221591

申请日：1991-03-13

Applicant: TORAY INDUSTRIES

Inventor： UEDA KAZUYOSHI ,  MOTOCHIKA NAGAKAZU ,  OSADA SHIGERU

IPC: B65H18/26

Abstract: PURPOSE:To enable the grasp of an air bite rate in every winding layer of a take-up roll so as to establish the optimum conditions of take-up speed, take-up tension, surface pressure, and the like by computing the air bite rate of the take-up roll during take-up action every fixed cycle from the winding diameter and winding length of the take-up roll, the thickness of sheet material and a take-up core diameter, and displaying the computed result. CONSTITUTION:The winding diameter D and winding length L of a take-up roll is inputted into an arithmetic means 20 first. In the arithmetic means 20, an air bite rate epsilon at that time is computed every fixed cycle by an illustrated expression on the basis of the take-up core diameter D0 and the film thickness (t) set before operation. The computed air bite rates epsilon1, epsilon2, epsilon3 are displayed on a monitor 21. In the monitor 21, the air bite rate in each winding layer regarding each take-up roll 3 can be thereby read moment by moment. This results in understanding what kind of air bite rate is obtained according to the conditions of take-up speed, tension, surface pressure, and the like so as to enable the grasp of conditions for obtaining the optimum air bite rate.

公开(公告)号：JPH04280767A

公开(公告)日：1992-10-06

申请号：JP6756591

申请日：1991-03-08

Applicant: TORAY INDUSTRIES

Inventor： UEDA KAZUYOSHI ,  MIYAMOTO SHIGEAKI ,  OSADA SHIGERU

IPC: B26D1/03 ,  B26D5/00 ,  B65H18/10 ,  B65H23/198 ,  B65H59/38 ,  G05D17/02

Abstract: PURPOSE:To prevent the occurrence of a trouble such as the tearing off of a selvage section by invariably controlling the selvage section winding tension to the optimum value in response to the trim of the selvage section changed by oscillation. CONSTITUTION:In a sheet-shaped object slitter with an oscillation device on the unwinding side, the winding tension of a selvage section is controlled in proportion with the trim of the selvage section changed by oscillation, and the winding tension is invariably controlled to the optimum value in response to the trim of the selvage section at that time.