一种橡胶防尘塞加工用模具

Abstract

本实用新型提供一种橡胶防尘塞加工用模具，涉及橡胶模具技术领域，包括模具主体，所述模具主体由上压板和下底板组成，所述下底板的四个拐角处分别安装有电动推杆，所述电动推杆的移动端连接上压板，所述下底板的底端安装有电机，所述上压板的底端设置有若干个型腔，所述下底板的顶端设置有基座，所述基座上设置有若干个型芯；采用多级顶出机构，分阶段施力脱模，避免传统一次性顶出导致的橡胶件变形或撕裂，尤其适用于薄壁或带倒钩结构的防尘塞，顶杆与顶针协同动作，确保产品完整脱离型芯，减少卡模风险，提升批量生产的稳定性，浮动式镶块设计在脱模时自动微退，有效抵消橡胶收缩包紧力，降低型腔与产品的摩擦吸附。

Claims

1. A mold for processing rubber dust plugs, comprising a mold body (1), characterized in that: The mold body (1) is composed of an upper pressure plate (101) and a lower base plate (102). Electric push rods (103) are installed at the four corners of the lower base plate (102). The moving end of the electric push rod (103) is connected to the upper pressure plate (101). A motor (104) is installed at the bottom of the lower base plate (102). Several cavities (105) are provided at the bottom of the upper pressure plate (101). A base (106) is provided at the top of the lower base plate (102). Several cores (107) are provided on the base (106).

2. A mold for processing rubber dust plugs according to claim 1, characterized in that: The number of cavities (105) matches the number of cores (107). Each cavity (105) is equipped with a miniature spring (109). The top of the miniature spring (109) is threadedly connected to an insert (108), which fits into the core (107).

3. A mold for processing rubber dust plugs as set forth in claim 1, characterized in that: The inner wall of the core (107) is provided with a groove (110), a valve plate (111) is provided on the groove (110), and a first spring (112) is provided at the rear end of the valve plate (111).

4. A mold for processing rubber dust plugs as set forth in claim 3, characterized in that: The valve plate (111) has no gap with the groove (110), the valve plate (111) slides in the groove (110), and the valve plate (111) is kept in a normally closed state by the initial state of the first spring (112).

5. A mold for processing rubber dust plugs as set forth in claim 3, characterized in that: The base (106) has micro-pores (115) on its four outer walls, and the rear end of the valve plate (111) is connected to the micro-pores (115).

6. A mold for processing rubber dust plugs as set forth in claim 1, characterized in that: The bottom end of the core (107) is slidably connected to a push rod (113), and a push pin (114) is slidably connected inside the push rod (113). The output end of the motor (104) extends into the core (107) and is connected to the push rod (113) and the push pin (114).

7. A mold for processing rubber dust plugs as set forth in claim 6, characterized in that: The diameter of the push rod (113) is 5mm-8mm, the diameter of the push pin (114) is 0.5mm-1mm, there is no gap between the push rod (113) and the core (107), and a sealing ring is provided between the push pin (114) and the push rod (113).

8. A mold for processing rubber dust plugs as set forth in claim 1, characterized in that: The maximum distance between the upper pressure plate (101) and the lower base plate (102) is equal to the maximum height of the electric push rod (103).

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