JPS6467325A - T-die lip driving mechanism - Google Patents
T-die lip driving mechanismInfo
- 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
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.
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)
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 |
-
1987
- 1987-09-09 JP JP62224019A patent/JPS6467325A/en active Pending
Cited By (1)
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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