Precision injection mold protection mechanism

Abstract

The invention discloses a precision injection mold protection mechanism. A mold comprises a bottom plate, a moving plate and a plurality of guiding columns, the moving plate is arranged in front of the bottom plate, the guiding columns penetrate through the bottom plate and the moving plate, the bottom ends of the guiding columns are fixed to the rear end face of the bottom plate, and the moving plate slides in the extending direction of the guiding columns; the precision injection mold protection mechanism comprises a protection mechanism body used for supporting the moving plate, the bottomplate forms a shoulder in an area outside the orthographic projection of the moving plate, and the protection mechanism body is mounted on the shoulder; and the protection mechanism body comprises a bracket and a bearing, a fixing groove is formed in the shoulder, the bracket is fixed into a mounting groove, the mounting groove is formed in the bracket, the bearing is rotatably arranged in the mounting groove, the externally tangent face of the bearing abuts against the moving plate, and when the moving plate slides in the direction of the guiding columns, the speed direction of the moving plate is the same as the speed direction of a tangency point generated when the bearing is tangent to the moving plate. According to the precision injection mold protection mechanism, abrasion of the self-weight of the mold to the guiding columns and inserts can be relieved or removed, and the service life of the mold is prolonged.

Description

technical field [0001] The invention relates to the field of molds, in particular to a precision injection mold protection mechanism. Background technique [0002] Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted plastic into the mold cavity under high pressure from the injection molding machine, and after cooling and solidifying, a molded product is obtained. Although the structure of the mold may vary due to the variety and performance of the plastic, the shape and structure of the plastic product, and the type of the injection machine, the basic structure is the same. Injection molds are mainly composed of pouring system, temperature adjustment system, molding parts and structural parts. Among them, the pouring syst...

AI Technical Summary

Problems solved by technology

In traditional injection molds, when the mobile template is opened, the weight of the mold will cause the mobile template to sink as a whole. The long-term use of the mold will cause the mold guide post to wear and bend, which will cause the precision inserts of the mold to wear, and the product scrap rate will increase. Die life shortened

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