JPS55133915A - Forming device for thermoplastic resin sheet with patterned surfaces at both sides - Google Patents
Forming device for thermoplastic resin sheet with patterned surfaces at both sidesInfo
- Publication number
- JPS55133915A JPS55133915A JP4107079A JP4107079A JPS55133915A JP S55133915 A JPS55133915 A JP S55133915A JP 4107079 A JP4107079 A JP 4107079A JP 4107079 A JP4107079 A JP 4107079A JP S55133915 A JPS55133915 A JP S55133915A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- sheet
- die
- wedge
- patterned
- 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.)
- Granted
Links
Landscapes
- Moulding By Coating Moulds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To avoid the influence of variation in extrusion pressure and to obtain a uniform sheet, by a method wherein a resin molding material is extruded onto a rotating patterned roll through a gap between a wedge-shaped die having a pattern-forming groove at a lower end thereof and a rear die to form a sheet.
CONSTITUTION: A resin molding material flowing through a hopper 2, a screw 3, and a resin passage 5 of a die 4 is extruded onto a patterned roll 8 through a gap between a wedge-shaped die 6 and a rear die 7, and the material passing along a circumference surface is solidified to form a sheet. A large number of grooves, made at a lower end of the wedge-shaped die 6 and in parallelism with the extrusion direction, form an embossed pattern on an upper surface of the molded sheet, and a pattern on the circumference of the patterned roll 8 is transferred on a back surface of the molded sheet to form the sheet with patterned surfaces at both sides. There can be satisfied the conditions of an inequality I and an inequality II, where θ is an angle formed by a straight line l, which links a lower end of the wedge- shaped die 6 to a center O of the patterned roll 8, and a slope 6a, d0 is a distance between the upper end of the roll 8 and the upper surface of the roll 8, and d is a distance between a rear die 7a and the upper surface of the roll 8.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54041070A JPS6030257B2 (en) | 1979-04-06 | 1979-04-06 | Manufacturing equipment for thermoplastic synthetic resin sheets with double-sided patterns |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54041070A JPS6030257B2 (en) | 1979-04-06 | 1979-04-06 | Manufacturing equipment for thermoplastic synthetic resin sheets with double-sided patterns |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55133915A true JPS55133915A (en) | 1980-10-18 |
JPS6030257B2 JPS6030257B2 (en) | 1985-07-15 |
Family
ID=12598178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54041070A Expired JPS6030257B2 (en) | 1979-04-06 | 1979-04-06 | Manufacturing equipment for thermoplastic synthetic resin sheets with double-sided patterns |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6030257B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167533U (en) * | 1981-04-16 | 1982-10-22 | ||
WO2005082599A1 (en) * | 2004-02-25 | 2005-09-09 | Eastman Kodak Company | Radial contact extrusion die |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6318162U (en) * | 1986-07-21 | 1988-02-06 | ||
CN111867558A (en) | 2018-03-16 | 2020-10-30 | 信越化学工业株式会社 | Cosmetic material |
-
1979
- 1979-04-06 JP JP54041070A patent/JPS6030257B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167533U (en) * | 1981-04-16 | 1982-10-22 | ||
WO2005082599A1 (en) * | 2004-02-25 | 2005-09-09 | Eastman Kodak Company | Radial contact extrusion die |
Also Published As
Publication number | Publication date |
---|---|
JPS6030257B2 (en) | 1985-07-15 |
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