JPS6434704A - Correction of bend of extrusion-molded item - Google Patents
Correction of bend of extrusion-molded itemInfo
- Publication number
- JPS6434704A JPS6434704A JP18890887A JP18890887A JPS6434704A JP S6434704 A JPS6434704 A JP S6434704A JP 18890887 A JP18890887 A JP 18890887A JP 18890887 A JP18890887 A JP 18890887A JP S6434704 A JPS6434704 A JP S6434704A
- Authority
- JP
- Japan
- Prior art keywords
- extrusion
- edges
- molded item
- cut surfaces
- distance
- 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
Landscapes
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
PURPOSE:To make it possible to correct immediately variability of thickness, strain and bend of an extrusion-molded item, by adjusting a mechanism for adjusting flow quantity of a mold for extrusion-molding based on the condition of the distance between cut surfaces after cutting the extrusion-molded item. CONSTITUTION:In the case when edges of cut surfaces 4a and 4b are parallel and their distances Dr and Dl are equal just after an extrusion-molded item 4 is cut by means of a cutter 5, no bend occurs in the extrusion-molded item 4. However, when the distance Dr is larger than the distance Dl, the extrusion-molded item bends to the right hand side after cutting, and on the contrary, when the distance Dr is smaller than the distance Dl, it bends to the left hand side. Moreover, when edges of the cut surfaces 4a and 4b are recessed-shapes each other, the thicknesses of the centers of the cut surfaces 4a and 4b are smaller than those of their edges and on the contrary, when edges of the cut surface 4a and 4b are projected-shapes each other, the thicknesses of the centers of the cut surfaces 4a and 4b are larger than those of their edges. Therefore, when the state of the extrusion-molded items is judged based on the distances of the cut surfaces and the flow rate extruded from a mold 1 is controlled by adjusting a mechanism for adjusting flow quantity, the thickness of the extrusionmolded item 4 can be made uniform.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18890887A JPS6434704A (en) | 1987-07-30 | 1987-07-30 | Correction of bend of extrusion-molded item |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18890887A JPS6434704A (en) | 1987-07-30 | 1987-07-30 | Correction of bend of extrusion-molded item |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6434704A true JPS6434704A (en) | 1989-02-06 |
Family
ID=16231992
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18890887A Pending JPS6434704A (en) | 1987-07-30 | 1987-07-30 | Correction of bend of extrusion-molded item |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6434704A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012036284A1 (en) * | 2010-09-17 | 2012-03-22 | 住友化学株式会社 | Extrusion molding device and molded body manufacturing method using the same |
WO2013137346A1 (en) * | 2012-03-16 | 2013-09-19 | 住友化学株式会社 | Extrusion-molding device and method for producing molded article using same |
-
1987
- 1987-07-30 JP JP18890887A patent/JPS6434704A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012036284A1 (en) * | 2010-09-17 | 2012-03-22 | 住友化学株式会社 | Extrusion molding device and molded body manufacturing method using the same |
WO2013137346A1 (en) * | 2012-03-16 | 2013-09-19 | 住友化学株式会社 | Extrusion-molding device and method for producing molded article using same |
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