公开(公告)号：US09849615B2

公开(公告)日：2017-12-26

申请号：US14368870

申请日：2012-12-13

Applicant: NV BEKAERT SA

Inventor： Dieter Ghillebert ,  Raf Clauws ,  Tom Baekelandt

IPC: B29C45/14 ,  B29C45/00 ,  B23D61/18 ,  B23D65/00 ,  B28D1/12 ,  B29L31/00 ,  B29K305/00

CPC classification number: B29C45/0046 ,  B23D61/185 ,  B23D65/00 ,  B28D1/124 ,  B29C45/14549 ,  B29C45/14565 ,  B29C2045/14877 ,  B29K2305/00 ,  B29L2031/77

Abstract: In a sawing cord the three constituting elements of steel cord, sawing bead and sleeve polymer in between the beads must work optimally together. In order to improve the injection molding quality the inventors disclose an injection mold wherein the injection channels inject polymer from opposite sides of the steel cord into the injection cavity. The injection mold comprises two half molds that form the injection cavity when closed. Different preferred embodiments are described inclusive the use of channels having a tree structure, preferably a binary channel tree, preferably a balanced binary tree and most preferred a balanced binary tree with equal length pathways from feed channel to each injection channel. The use of heated channels is disclosed and the rules for balancing between the number of heated versus non-heated channels are explained. Furthermore the method to use such mold and the product resulting from the use of the mold are claimed.

公开(公告)号：US20140374954A1

公开(公告)日：2014-12-25

申请号：US14368870

申请日：2012-12-13

Applicant: NV BEKAERT SA

Inventor： Dieter Ghillebert ,  Raf Clauws ,  Tom Baekelandt

IPC: B29C45/00 ,  B29C45/14

CPC classification number: B29C45/0046 ,  B23D61/185 ,  B23D65/00 ,  B28D1/124 ,  B29C45/14549 ,  B29C45/14565 ,  B29C2045/14877 ,  B29K2305/00 ,  B29L2031/77

Abstract: In a sawing cord the three constituting elements of steel cord, sawing bead and sleeve polymer in between the beads must work optimally together. In order to improve the injection moulding quality the inventors disclose an injection mould wherein the injection channels inject polymer from opposite sides of the steel cord into the injection cavity. The injection mould comprises two half moulds that form the injection cavity when closed. Different preferred embodiments are described inclusive the use of channels having a tree structure, preferably a binary channel tree, preferably a balanced binary tree and most preferred a balanced binary tree with equal length pathways from feed channel to each injection channel. The use of heated channels is disclosed and the rules for balancing between the number of heated versus non-heated channels are explained. Furthermore the method to use such mould and the product resulting from the use of the mould are claimed.

Abstract translation: 在锯线中，珠子之间的钢帘线，锯条和套筒聚合物的三个构成要素必须最佳地一起工作。 为了提高注射成型质量，本发明人公开了一种注射模具，其中注射通道将聚合物从钢丝索的相对侧注入注射腔。 注射模具包括两个半模，当关闭时形成注射腔。 描述不同的优选实施例，其包括使用具有树结构，优选二进制通道树，优选平衡二叉树的信道，并且最优选地，具有从馈送信道到每个注入信道的等长路径的平衡二叉树。 公开了加热通道的使用，并且解释了加热通道与非加热通道之间的平衡规则。 此外，要求使用这种模具的方法和由使用模具产生的产品。