Refrigerator inner container vacuum plastic uptake demoulding mechanism

Abstract

The invention provides a refrigerator inner container vacuum plastic uptake demoulding mechanism. The refrigerator inner container vacuum plastic uptake demoulding mechanism comprises an air cylinderarranged on a die frame. A sliding block is arranged at the piston shaft end of the air cylinder. Core pulling blocks are symmetrically arranged on the two sides of the sliding block and are in sliding connection to the sliding block. Connecting rods are hinged to the inner side walls of the core pulling blocks. Connecting blocks are arranged at the tail ends of the connecting rods and are arranged in a sliding groove of an ejector block. The ejector block and the connecting blocks are connected through a roll shaft. A kidney-shaped groove for roll shaft sliding is formed in the ejector block.The sliding block is conical, and the inner side faces of the core pulling blocks adapt to the conical face. According to the scheme, the demoulding force is increased, and the core pulling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of refrigerator manufacturing equipment, in particular to a vacuum-absorbing plastic-absorbing mold-removing mechanism for a refrigerator liner. Background technique [0002] The principle of vacuum forming of the refrigerator liner is to fix the thermoplastic plate (sheet) above the mold, heat it to a softened state with a radiant heater, then move the mold to the plastic plate, form a cavity between the mold and the plate, and use a vacuum pump The air in the cavity is sucked out, and the plate is formed by covering the mold with the help of atmospheric pressure. After cooling and setting, the plastic part is released from the mold with the help of compressed air. Due to the large volume, thin wall and easy deformation of the refrigerator liner, in order to demould smoothly, it is often necessary to use a demoulding mechanism. The existing demoulding mechanism adopts the form of a core-pulling mechanism, b...

AI Technical Summary

Problems solved by technology

Due to the large volume, thin wall and easy deformation of the refrigerator liner, in order to demould smoothly, it is often necessary to use a demoulding mechanism. The existing demoulding mechanism adopts the form of a core-pulling mechanism, but due to the contact area between the core-pulling mechanism and the finished product It is relatively small, so it is easy to suffer from insufficient demoulding force. In addition, the core-pulling mechanism often hinders the forming of the refrigerator liner, causing wrinkles on the side wall of the refrigerator liner, resulting in unsightly bottom surface of the refrigerator liner.

Images