Forming mold for glass insulator

Abstract

The invention relates to the technical field of insulator manufacturing, and provides a forming mold for a glass insulator. The forming mold comprises an upper mold and a lower mold. The upper mold comprises a cooling air device and a model part, and the cooling air device comprises a middle air inlet pipe and peripheral air inlet pipes arranged on the left side and the right side of the middle air inlet pipe. The lower mold is of a detachable structure and comprises a base, and a first half mold and a second half mold located above the base. According to the invention, the cooling mode in the mold is improved, and air disc type cooling is adopted, so that the cooling effect of the mold is improved, and the electromechanical performance of a product is more excellent and stable. The mold opening and demolding mode is improved, contact with a glass piece is not needed, therefore, the glass piece cannot be damaged, and the problem that in the prior art, a glass piece needs to be ejected out, and the surface performance of the glass piece is affected is solved.

Description

technical field [0001] The invention relates to the technical field of insulator manufacture, in particular to a forming mold for glass insulators. Background technique [0002] Insulators are an important part of overhead transmission lines and the most widely used components in power systems. Glass insulators have been widely used in transmission lines due to their good arc resistance and vibration resistance, not easy to aging and good self-cleaning properties. Glass insulators are generally composed of iron caps, tempered glass parts and steel feet, and are glued together with adhesives through glue mounting, curing and other processes. [0003] The insulating part of the glass insulator is formed by glass hydraulic pressure, and the press forming generally needs to be equipped with a suitable mold for molding. In compression molding, inject a certain amount of material into the female mold first, then close the mold part, wait for the material to be roughly formed, an...

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Problems solved by technology

However, in the prior art, the cooling process needs to be equipped with additional cooling tools, and the method of ejecting the workpiece is used when discharging, which has a certain impact on the surface of the workpiece; or the cooling method of the forming mold is air duct type internal cooling With the external cooling of the air nozzle type fan plate, the temperature difference of the forming mold can reach up to 300°C, and the heat dissipation effect is poor, resulting in poor electromechanical performance of the product and a high self-explosion rate

For example, the patent No. 201711330155.1 "Insulator Mold with Heat Dissipation Mechanism" has only one cooling air inlet, and there are defects in the design of the suction port and the internal branch air pipe. The cooling air will be partially sucked away before it reaches the surface of the insulator, resulting in The cooling effect is poor and the cooling is uneven; in addition, after the cooling is completed, the insulator workpiece is slightly sucked up by the suction pump, and then the workpiece is ejected from the bottom through the cylinder, and the surface of the workpiece is affected by the suction force and the ejection rigid force. Susceptible to breakage, affecting electromechanical performance

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