JPS623204U

JPS623204U -

Info

Publication number: JPS623204U
Application number: JP9000286U
Authority: JP
Priority date: 1985-06-13
Filing date: 1986-06-12
Publication date: 1987-01-10
Also published as: JPH0222085Y2; GB8514976D0

Description

[Brief explanation of the drawing]

第１ａ図は、押し出しによる中空断面の材料の
連続押し出し用装置の一部断面側面図である。第
１ｂ図は、第１ａ図の装置の変形例を示す図であ
る。第２図は、第１図の装置に用いられるマンド
レルの斜視図である。第３図は、第１ａ図の装置
の一部の一部断面斜視図である。第４図は、第２
図のマンドレルと第３図に示す装置の一部との組
み立て体の一端の平面図である。第５図は、第４
図の組み立て体の端の断片的な断面図である。第
６図は、第２図の矢印Ａの方向における断片的な
断面図である。第７図は、第４図の平面図の変形
例を示す図である。第８図は、第４図の平面図の
別の変形例を示す図である。第９図及び第１０図
は、別の押し出し中空断面の管を示す斜視図であ
る。１６……オリフイス、４０……穴、２９，６０
，７３……マンドレル。 FIG. 1a is a side view in partial section of an apparatus for continuous extrusion of hollow-section material by extrusion; FIG. FIG. 1b shows a modification of the device of FIG. 1a. 2 is a perspective view of a mandrel used in the apparatus of FIG. 1; FIG. FIG. 3 is a partially sectional perspective view of a portion of the apparatus of FIG. 1a; Figure 4 shows the second
4 is a plan view of one end of the assembly of the illustrated mandrel and a portion of the apparatus shown in FIG. 3; FIG. Figure 5 shows the fourth
Figure 3 is a fragmentary cross-sectional view of the end of the illustrated assembly; FIG. 6 is a fragmentary cross-sectional view in the direction of arrow A in FIG. FIG. 7 is a diagram showing a modification of the plan view of FIG. 4. FIG. 8 is a diagram showing another modification of the plan view of FIG. 4. 9 and 10 are perspective views of another extruded hollow cross-section tube. 16... Orifice, 40... Hole, 29,60
,73...Mandrel.

Claims

[Claims for Utility Model Registration] (1) An apparatus for continuously forming a hollow cross-sectional material by extrusion, which comprises a main body forming an orifice for extruding the material, and a mandrel that can be positioned within the orifice; in said continuous forming apparatus for hollow cross-section material in which said material is extruded between a body and a mandrel, said mandrel defining at least one relatively small hole passing through the mandrel from end to end, said material being first passed through said hole; Apparatus for the continuous formation of hollow cross-section material by extrusion, characterized in that the extruded material heats a mandrel and thereby the adjacent material. (2) The orifice tapers toward its exit;
The extruded hollow section according to claim 1, wherein the mandrel has a portion adapted to abut an adjacent tapered surface of the orifice in order to position it within the orifice. Continuous material forming equipment. (3) An apparatus for continuously forming hollow cross-section materials by extrusion as claimed in claim 1 or 2, wherein the orifice is generally of truncated conical or polygonal form. (4) The orifice has at its exit end a lip portion having an inner surface shaped to form the outer surface of the extruded hollow cross-section material, An apparatus for continuously forming a hollow cross-section material by extrusion according to any one of Item 3.