公开(公告)号：US20030137894A1

公开(公告)日：2003-07-24

申请号：US10348897

申请日：2003-01-23

申请人： CINCINNATI EXTRUSION GMBH

发明人： Dieter Reisenhofer ,  Hans Schoenmaker

IPC分类号： B29B007/48

CPC分类号： B29C47/402 ,  B29C47/0009 ,  B29C47/38 ,  B29C47/60 ,  B29C47/6075

摘要： An extruder for processing of thermoplastics has a housing (1) in which a screw is pivotally supported. A land (5) which runs in a helical line protrudes from the core (4) of the screw. There is at least one ventilation opening in the housing in which the screw is pivotally supported. The land (5) of the screw at least in the area of the ventilation opening has an active flank, i.e. one which points toward the discharge end of the extruder and which encloses with the axis of the screw an acute angle such that at least in areas it is set back relative to a radial plane which passes through the outside edge (14) of the active flank (10). This prevents the plastic which is to be processed in the extruder from being pressed to the outside and clogging the ventilation opening.

摘要翻译： 用于加工热塑性塑料的挤出机具有其中枢轴支撑螺钉的壳体（1）。 沿螺旋线延伸的平台（5）从螺钉的芯部（4）突出。 在壳体中至少有一个通风口，螺钉枢转地支撑在该通风口中。 至少在通风口区域中的螺钉的平台（5）具有活动侧面，即指向挤出机的排出端的侧面，并且以螺旋形的轴线围成锐角，使得至少在 区域相对于穿过活动侧面（10）的外边缘（14）的径向平面设置。 这防止在挤出机中被处理的塑料被挤压到外部并堵塞通风口。

公开(公告)号：US20030112698A1

公开(公告)日：2003-06-19

申请号：US10068181

申请日：2002-02-05

申请人： WENGER MANUFACTURING, INC.

发明人： Bobbie W. Hauck ,  Lavon G. Wenger

IPC分类号： B29B007/48

CPC分类号： B29C47/402 ,  A23P30/20 ,  B29B7/801 ,  B29C47/0014 ,  B29C47/0801 ,  B29C47/38 ,  B29C47/60 ,  B29C47/6012 ,  B30B9/16 ,  B30B9/26

摘要： An improved twin screw extruder device (14) is provided which is capable of producing a wide variety of high quality extrudates having greatly varying final properties, without the need for extensive machine modifications. The extruder (14) includes a barrel (16) together with a co-rotating twin screw assembly (22). The assembly (22) is made up of a pair of screws (50, 52) having central, tapered shafts (54, 56) equipped with outwardly extending helical flighting (58, 60); the screws (50, 52) are non-parallel and are positioned so that the flighting (58, 60) thereof is intercalated along the length of the screws (50,52). The flighting is of specialized configuration and tapers along the length of the screws (50, 52) preferably at an angle of taper different than that of the shafts (54, 56); moreover, the width of the outer flighting surfaces (70, 72) increases along the length of the shafts (54, 56). This screw geometry defines a series of alternating upper and lower close-clearance high-pressure nip areas (78) defined by the flighting (58, 60) which serves to propel an extrudable mixture forwardly towards the outlet end (20) of the barrel (16). However, passageways (80) and kneading zones (82) are also defined between the screws (50, 52), which assures full mixing, shearing and cooking of the material. The extruder device (14) is capable of producing high density sinking aquatic feeds as well as expanded, low density products merely by changing the rotational speed of the screws (50, 52) together with appropriate temperature control. In another embodiment, a fluid extraction extruder (138) is provided having a specialized extruder head (140) including an outer shell (144) and an inner, elongated, slotted sleeve (152).

公开(公告)号：US20020093118A1

公开(公告)日：2002-07-18

申请号：US10032555

申请日：2002-01-02

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd)

发明人： Kimio Inoue ,  Koichi Miyake

IPC分类号： B29B007/24 ,  B29B007/48

CPC分类号： B29C47/1063 ,  B29B7/481 ,  B29C47/0009 ,  B29C47/0881 ,  B29C47/38 ,  B29C47/402 ,  B29C47/60 ,  B29C47/625 ,  B29K2105/0005

摘要： A twin-screw continuous kneading apparatus is provided which can stably supply an additive without reducing the production capability and greatly increase the throughput of a high-quality compound. The kneading apparatus includes a second supply unit connected to an upstream end or a midstream portion of a barrel and supplying an additive into kneading chambers, and has a kneading zone provided by a part of each of kneading screws downstream of the second supply unit for mixing the additive into a kneaded material. The kneading zone is constituted by a segment group made up of a plurality of rotor segments arranged successively in an axial direction of the kneading screw, the segment group satisfying conditions (a) the segment group comprises only feed segments having flights twisted in a direction to feed the kneaded material downstream with rotation of the kneading screw, or comprises the feed segments and neutral segments having flights parallel to the axial direction, and (b) each of the rotor segments making up the segment group has flights formed by arranging a high-height tip portion providing a comparatively small tip clearance relative to an inner wall surface of the kneading chamber and a low-height tip portion providing a comparatively large tip clearance alternately in the axial direction in succession.

摘要翻译： 提供一种可以稳定地供给添加剂而不降低生产能力并大大增加高质量化合物的生产量的双螺杆连续捏合设备。 捏合装置包括连接到桶的上游端或中游部分并将添加剂供应到捏合室中的第二供应单元，并且具有由第二供应单元下游的混合螺杆的一部分提供的用于混合的捏合区 该添加剂成为捏合材料。 捏合区由沿着混炼螺杆的轴向连续设置的多个转子段构成的段组构成，满足条件（a）的段组仅包括具有沿着 在混炼螺杆的旋转下游向捏合材料供给捏合材料，或者包括具有平行于轴向的平行的进料段和中性段，以及（b）构成段组的每个转子段具有通过布置高压 高度尖端部分相对于捏合室的内壁表面提供相对小的顶端间隙，以及相对较大的顶端间隙在轴向上交替地提供相对较大的顶端间隙。