Slide retainer for an injection mold

A slide retainer for an injection mold tool, said tool having a base plate and a slide, the slide retainer including a channel insert and a cylindrical insert;

• the channel insert having a channel defined therein, said channel including first and second upwardly extending arms interconnected at respective lower ends thereof and a third generally horizontal arm disposed between and interconnecting the respective upper ends of the upwardly extending arms thereby defining a circumferential channel path;
• the cylindrical insert having a track pin rigidly affixed thereto;
• means for rigidly mounting the channel insert to the base plate;
• means for mounting the cylindrical insert for rotational movement to the slide in opposing relationship to the channel insert whereby the track pin extends from the cylindrical insert into the channel of the channel insert and whereby the track pin moves within the channel between first slide extended and second slide retracted positions, said positions corresponding to the track pin being oriented generally below the lower ends of the upwardly extending channel arms and in the horizontal arm, respectively;
• means for guiding the track pin upwardly through the first upward arm and into the generally horizontal arm as the slide is moved between its extended and retracted positions whereby a sidewall of the horizontal channel blocks downward movement of the slide thereby locking the slide in the second retracted position;
• means for guiding the track pin from the generally horizontal channel arm to the second upward arm whereby the track pin may travel downwardly therein thereby releasing the slide and permitting return of the slide to the first extended position.

A slide retainer for an injection mold tool, said tool having a base plate and a slide, the slide retainer including a channel insert having a channel defined therein, and a cylindrical insert having a track pin rigidly affixed thereto;

• means for mounting the channel insert within the base plate adjacent the slide whereby no additional base plate material is required and whereby the slide may be removed from the tool without first removing the channel insert;
• means for mounting the cylindrical insert for rotational movement within the slide in opposing relationship to the channel insert whereby the track pin extends from the cylindrical insert into the channel of the channel insert;
• the channel defining first and second track pin regions corresponding to first slide extended and second slide retracted positions, respectively;
• the second track pin region including means for blocking movement of the track pin and slide therefrom and to the first slide position;
• means for releasing the track pin from the blocking means whereby the slide may return to the first mold position.

A slide retainer for an injection mold tool, said tool having a base plate and a slide, the slide retainer including a channel insert and a cylindrical insert;

• the channel insert having a channel defined therein, said channel including first and second upwardly extending arms interconnected at respective lower ends thereof and a third generally horizontal arm disposed between and interconnecting the respective upper ends of the upward arms thereby defining a circumferential channel path, said horizontal arm having an upper wall and a lower wall;
• the cylindrical insert having an axis of rotation and a track pin rigidly affixed thereto and spaced from the axis of rotation thereof;
• means for rigidly mounting the channel insert to the base plate;
• means for mounting the cylindrical insert for rotational movement to the slide in opposed relationship to the channel insert whereby the track pin extends from the cylindrical insert into the channel of the channel insert and whereby the track pin moves within the channel between first slide extended and second slide retracted positions, said positions corresponding to the track pin being oriented generally below the lower ends of the upward channel arms and in the horizontal arm, respectively;
• means associated with the cylindrical insert for biasing the insert for generally horizontal movement of the track pin affixed thereto;
• means for guiding the track pin into the first upward arm as the slide is moved from its first extended to its second retracted positions whereupon the biasing means urges the track pin through the horizontal channel arm;
• blocking means in the horizontal channel arm for restricting the passage of the track pin between the first and second upward arms whereby the track pin remains in the horizontal arm thereby locking the slide in the retracted position.