公开(公告)号：US11230040B2

公开(公告)日：2022-01-25

申请号：US15458208

申请日：2017-03-14

Applicant: Niigon Machines Ltd.

Inventor： Robert D. Schad ,  Carsten Link ,  Hemant Kumar

IPC: B29C45/17 ,  B29C45/16 ,  B29C45/04

Abstract: A platen apparatus for supporting a mold portion in an injection molding machine includes a platen body and a mold mounting face adjacent a front of the platen body for supporting a mold half. The mold mounting face includes a rotary central surface that is rotatable about an axis relative to the platen body and a fixed peripheral surface that is fixed relative to the platen body. The peripheral surface is disposed about a periphery of the central surface. The central surface and the peripheral surface are alignable in a common vertical plane.

公开(公告)号：US11167460B2

公开(公告)日：2021-11-09

申请号：US16212823

申请日：2018-12-07

Applicant: Niigon Machines Ltd.

Inventor： Robert D. Schad ,  Carsten Link ,  Hemant Kumar

IPC: B29C45/04

Abstract: An injection molding machine includes a stationary platen and a moving platen mounted on a machine base, and a rotary apparatus for rotatably supporting a center mold section. The rotary apparatus includes a carriage body including a carriage upper portion supported by first and second carriage rails, and a carriage lower portion extending downward from the carriage upper portion laterally intermediate the first and second carriage rails. The rotary apparatus further includes a rotary table mounted atop the carriage body for rotatably supporting the center mold section. The rotary table is mounted to the carriage body by a rotary table bearing having a combination of bearing elements to bear axial, rotational, and moment loads. The machine further includes a plurality of tie bars extending between the moving platen and the stationary platen. The tie bars are free from engagement by the rotary apparatus.

公开(公告)号：US20210046684A1

公开(公告)日：2021-02-18

申请号：US17061905

申请日：2020-10-02

Applicant: Niigon Machines Ltd.

Inventor： Robert D. Schad ,  Hemant Kumar ,  Calin Pavel ,  Carsten Link ,  Marc Ricke

IPC: B29C45/64 ,  B29C45/68

Abstract: A clamp assembly for an injection molding machine includes a clamp piston slidable within a housing among a clamping position, a mold break position, and a meshing position disposed axially intermediate the clamping and the mold break positions. A clamp chamber urges the clamp piston towards the clamping position when pressurized, and a return device urges the clamp piston from the clamping position to the meshing position when pressure in the clamp chamber is relieved. At least one mold break actuator is coupled to a mold break engagement surface disposed within the housing. The mold break actuator is adjustable to accommodate retraction of mold break surface when the clamp piston moves to the clamping position, and to forcefully push the mold break surface forward against the clamp piston when moving the clamp piston to the mold break position.

公开(公告)号：US20190118436A1

公开(公告)日：2019-04-25

申请号：US16212823

申请日：2018-12-07

Applicant: Niigon Machines Ltd.

Inventor： Robert D. Schad ,  Carsten Link ,  Hemant Kumar

IPC: B29C45/04

Abstract: An injection molding machine includes a stationary platen and a moving platen mounted on a machine base, and a rotary apparatus for rotatably supporting a center mold section. The rotary apparatus includes a carriage body including a carriage upper portion supported by first and second carriage rails, and a carriage lower portion extending downward from the carriage upper portion laterally intermediate the first and second carriage rails. The rotary apparatus further includes a rotary table mounted atop the carriage body for rotatably supporting the center mold section. The rotary table is mounted to the carriage body by a rotary table bearing having a combination of bearing elements to bear axial, rotational, and moment loads. The machine further includes a plurality of tie bars extending between the moving platen and the stationary platen. The tie bars are free from engagement by the rotary apparatus.

公开(公告)号：US20210078225A1

公开(公告)日：2021-03-18

申请号：US17108498

申请日：2020-12-01

Applicant: Niigon Machines Ltd.

Inventor： Robert D. Schad ,  Carsten Link ,  Hemant Kumar

IPC: B29C45/16 ,  B29C45/17

Abstract: A platen apparatus for a mold center section of an injection molding machine includes a first mold mounting surface on a first front face of a first wall, the first mold mounting surface for supporting a first mold section, and a second mold mounting surface on a second front face of a second wall, the second wall spaced apart from the first wall in an axial direction and providing a generally hollow chamber therebetween. The second mold mounting surface is for supporting a second mold section and is directed away from the first mold mounting surface. The platen apparatus further includes a plurality of compression members extending between the first and second walls for maintaining a wall spacing between the first and second walls, and an ejector assembly mounted between the first and second walls for ejecting molded articles from the first and second mold sections.