Arc core-pulling device for die

A technology of core-pulling device and circular arc, which is applied in the field of mold circular-arc core-pulling device, to achieve the effect of core-pulling, less flash and small gap
CN102139526AInactive Publication Date: 2011-08-03厦门市方圆通模具有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
厦门市方圆通模具有限公司
Publication Date
2011-08-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an arc core-pulling device for a die, which mainly comprises a movable die insert panel, a teeth row oil cylinder, a teeth row, a fixed gear, a movable gear, a U-shaped gear and a bending core, wherein the movable die insert panel is installed on a movable die, a rod end of a piston rod of the teeth row oil cylinder is connected with the teeth row, the fixed gear is rotatably installed on the movable die insert panel, and the U-shaped gear is installed in the movable die and located below the movable die insert panel; and the movable gear is rotatably connected with one end of the bending core, the outer teeth of the movable gear are respectively engaged with the outer teeth of the fixed gear and the arc inner teeth of the U-shaped gear, and the bending core is slidably connected to the interior of a bending groove of the movable die insert panel. Because the U-shaped gear is provided with the arc inner teeth, the movable gear engaged with the U-shaped gear moves along an arc inner teeth surface to drive the bending core to be stably pulled out from a die cavity. The fixed gear, the movable gear and the U-shaped gear are engaged with each other to realize power transmission as well as stable and reliable running.
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Description

technical field

[0001] The invention relates to an injection mold, in particular to a mold arc core pulling device. Background technique

[0002] Plastic injection molds are tools for producing plastic products and are widely used. In the injection molding of plastic products, since some plastic products have inner concaves, side grooves, side holes, etc., it is necessary to set a mold core and take out the mold core by pulling the mold after the plastic part is molded. There are many ways to pull out the core of plastic molds, but there are few ways to pull out the arc-shaped holes. The industry is in urgent need of a convenient, stable, and reliable pull-out mechanism for arc-shaped cores. Contents of the invention

[0003] The object of the present invention is to provide a mold arc core pulling device with stable and reliable action and less flash.

[0004] For realizing the above object, technical solution of the present invention is:

[0005] The invention is a mo...

Claims

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