JPS6467325A - T-die lip driving mechanism - Google Patents

T-die lip driving mechanism

Info

Publication number
JPS6467325A
JPS6467325A JP62224019A JP22401987A JPS6467325A JP S6467325 A JPS6467325 A JP S6467325A JP 62224019 A JP62224019 A JP 62224019A JP 22401987 A JP22401987 A JP 22401987A JP S6467325 A JPS6467325 A JP S6467325A
Authority
JP
Japan
Prior art keywords
section
pressure
air pressure
lip
elastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62224019A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP62224019A priority Critical patent/JPS6467325A/en
Publication of JPS6467325A publication Critical patent/JPS6467325A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
    • B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To realize driving of high accuracy and high speed response by making a lip section in a T-die main body an elastic deforming section, to which a number of air pressure control sections are connected at a given interval and micro-driving the lip sections through the elastic deforming sections. CONSTITUTION:Voltage-air pressure converters 4 are directly coupled with a number of pressure chambers 3 provided close to the upper section of a lip section 2 of a T-die main body 1. Supplied air pressure Ps is reduced almost in proportion with a current (i) put into voltage-air pressure converters 4 and the pressure P in pressure chambers 3 is controlled. When the pressure P in the pressure chambers 3 is increased, turning moment is generated in the lip section 2, and the lip section 2 is driven around an elastic hinge section 8 as a center to reduce the gapping (g). Also, inversely when the pressure P is reduced, the lip section 2 is driven in the direction reverse to the above said to increase the gapping (g). In said case, displacement amount is determined from the rigidity of a structure in three faces, left, light and below, encircling the pressure chambers 3 and the rigidity of the elastic hinge section 8. Thus, high accuracy driving almost without looseness or backlash can be carried out by the elastic deformation of the structure by means of air pressure control.
JP62224019A 1987-09-09 1987-09-09 T-die lip driving mechanism Pending JPS6467325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62224019A JPS6467325A (en) 1987-09-09 1987-09-09 T-die lip driving mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62224019A JPS6467325A (en) 1987-09-09 1987-09-09 T-die lip driving mechanism

Publications (1)

Publication Number Publication Date
JPS6467325A true JPS6467325A (en) 1989-03-14

Family

ID=16807311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62224019A Pending JPS6467325A (en) 1987-09-09 1987-09-09 T-die lip driving mechanism

Country Status (1)

Country Link
JP (1) JPS6467325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11779139B2 (en) 2020-07-26 2023-10-10 Raymond L Castaldo Disc pillow for supported range of motion and attenuation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11779139B2 (en) 2020-07-26 2023-10-10 Raymond L Castaldo Disc pillow for supported range of motion and attenuation

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