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11. 发明申请

WO1990014176A1 CONTINUOUS EXTRUSION APPARATUS 审中-公开
标题翻译：连续挤出装置
公开(公告)号：WO1990014176A1
公开(公告)日：1990-11-29
申请号：PCT/GB1990000778
申请日：1990-05-18
申请人： BWE LIMITED , HAWKES, Daniel, John , JONES, Phillip, Andrew , ANDERSON, Douglas, Edward
发明人： BWE LIMITED
IPC分类号： B21C23/00
CPC分类号： B21C23/005 , B21C23/085 , B21C25/00 , B21C33/006
摘要： Apparatus for the continuous extrusion of metals in which feed is introduced into two (or more) spaced apart circumferential grooves (4) in a rotating wheel (2) (or rotating wheels) to contact an arcuate shoe portion (8) and abutments extending into the grooves. The feed is constrained by the abutments to flow through frusto-conical exit apertures (10) in the shoe portion (8) to a chamber (6) and is extruded as relatively thin-walled, large cross-section, product. The exit apertures (10) have cone angles in the range 5°-45°. Mixer plates (14) are profiled to distribute flow evenly from the apertures (10) to around the die opening (30). An extrusion die body (18) for cylindrical extrusions is located and axially centered by set screws (122). Where an even number of grooves (4) are utilised, an extrusion mandrel (12) may be secured to the shoe portion (8) by a bolt (22) positioned centrally of the grooves. Lubricant or oxidation inhibiting fluids may be injected internally of the extruded product through a passage (36, 38) extending through the shoe portion (8) and the bolt (22). In another embodiment, the chamber (6) is also of divergent frusto-conical form having a cone angle corresponding to that of the apertures (10), thereby enabling the extrusion of even larger cross-section products. The frusto-conical form may be of elliptical cross-section to achieve a requisite divergence or to accord with the configuration of the die orifice. By providing spaced apart grooves (4) and apertures (10) diverging frusto-conically it is possible to extrude products of relatively large cross-section since the volume feed rate is enhanced and the distance travelled by the material from the grooves (4) to the die orifice (30) is reduced, thereby reducing friction losses and the likelihood of discontinuities in the extrudate arising.

12. 发明申请

WO2009063206A1 CONTINUOUS EXTRUSION APPARATUS 审中-公开
标题翻译：连续挤出装置
公开(公告)号：WO2009063206A1
公开(公告)日：2009-05-22
申请号：PCT/GB2008/003830
申请日：2008-11-14
申请人： BWE LIMITED , HAWKES, Daniel, John
发明人： HAWKES, Daniel, John
IPC分类号： B21C23/00 , B21C25/00
CPC分类号： B21C23/005 , B21C25/00
摘要： An extrusion mandrel assembly for continuous extrusion apparatus has a lobed, mushroom shaped, dolly (28) formed with a central spacing stem (30) located in the chamber (16) adjacent a pair of discharge ports (27) connecting respective exit apertures (10) into an internal cavity in the chamber (16) and a pair of shaped lobes (32) having rear faces (34) extending from the central spacing stem (30), outer edge portions (36) and front faces merging inco a collar (38) around a neck (40) co-acting with an annular shoulder (42) on the extrusion die body (20) to form an annular extrusion gap (44), with each of the lobes (32) being profiled such that frictional surface drag on extruding material is substantially uniform around the lobed dolly (28). Individual paths between the discharge ports (27) and the annular extrusion gap (44) are substantially equal in length as measured on the respective surfaces of the rear faces, edge portions and front faces of the profiled lobes (32). An extruded aluminium cylindrical tube of up to 150mm diameter and wall thickness in the range from lmm to 4mm may be formed avoiding discontinuities.
摘要翻译：用于连续挤出设备的挤出心轴组件具有一个叶状的蘑菇状的小车（28），其形成有一个位于腔室（16）中的中心间隔杆（30），该中心间隔杆（30）邻近一对连接相应出口孔）进入腔室（16）内的一个内部空腔和一对具有从中心间隔杆（30）延伸的后表面（34）的成形凸角（32），外边缘部分（36）和正面合并一个凸缘 38）围绕与挤出模具主体（20）上的环形肩部（42）共同作用的颈部（40）以形成环形挤压间隙（44），其中每个凸角（32）被成形为使得摩擦表面挤压材料上的拖曳在叶状台车（28）周围基本均匀。排出口（27）和环形挤压间隙（44）之间的各个路径的长度基本上等于在异形凸角（32）的后表面，边缘部分和前表面的相应表面上。可以形成直径为150mm，壁厚在1mm至4mm范围内的挤压铝圆柱形管，避免不连续。

13. 发明申请

WO1996029161A1 CONTINUOUS EXTRUSION APPARATUS 审中-公开
标题翻译：连续挤出装置
公开(公告)号：WO1996029161A1
公开(公告)日：1996-09-26
申请号：PCT/GB1996000647
申请日：1996-03-15
申请人： BWE LIMITED , WRIGHT, Anthony, Thomas
发明人： BWE LIMITED
IPC分类号： B21C23/00
CPC分类号： B21C23/005
摘要： A tooling assembly for a continuous extrusion apparatus includes a die top (22) positioned in a shoe (8) arranged to be urged into contact with a rotating wheel (2) having a circumferential groove (26). An abutment body (24) is positioned as a sliding fit in a recess (30) provided in the die top (22) and is formed with a spine (44) arranged to project into the circumferencial groove (26) and with shoulders (46) flanking the spine arranged to co-act with the cylindrical surface (50) of the wheel (2) adjacent an abutment face (48). The abutment face (48) lies in a plane inclined slightly to an axial plane through the wheel and the faces (34, 36) on the abutment body (24) seating on faces (38, 40) of the recess (30) are aligned such that forces arising during extrusion act to urge the abutment body (24) into the recess (30). Where the wheel (2) is formed with a plurality of circumferential grooves (26), either a corresponding plurality of abututment bodies (24) and associated recesses (30) in the die top (22) are provided or a composite abutment body (24) having spines (44) and shoulders (46) formed as lands intermediate the spines seating in a single recess in the die top is provided. The spine (44) and shoulders (46) are of a linear form, thereby facilitating manufacture. In addition, replacement of the abutment is greatly facilitated in comparison with previous arrangements in which the abutment was integral with, or bolted to, the die top (22).
摘要翻译：一种用于连续挤出设备的加工组件包括定位在靴子（8）中的模具顶部（22），其布置成被推动与具有圆周凹槽（26）的旋转轮（2）接触。邻接体（24）被定位为滑动配合在设置在模具顶部（22）中的凹部（30）中，并且形成有脊（44），所述脊（44）布置成突出到周向凹槽（26）中并且具有肩部），其设置成与邻近邻接面（48）的轮（2）的圆柱形表面（50）共同作用。邻接面（48）位于通过轮稍微倾斜于轴向平面的平面中，并且位于凹部（30）的表面（38,40）上的抵接体（24）上的面（34,36）对准使得在挤压期间产生的力用于将抵接体（24）推入凹部（30）。在轮（2）形成有多个周向槽（26）的情况下，在模具顶部（22）中设置相应的多个对接体（24）和相关联的凹部（30），或者复合抵接体（24））具有形成为位于模具顶部中的单个凹部中的脊部之间的平台的脊（44）和肩部（46）。脊（44）和肩（46）是线性形式，从而便于制造。此外，与先前的布置相比，桥接件的替换大大方便，其中邻接部与模具顶部（22）成一体或螺栓连接到模具顶部（22）。

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