Heat insulation and preservation structure of hot plate welding mold

Abstract

The invention discloses a heat insulation and preservation structure of a hot plate welding mold. The heat insulation and preservation structure comprises a heat insulation aluminum foil, heat insulation asbestos and an outer protective layer, wherein the heat insulation aluminum foil is tightly attached to the non-working part of a hot mold of the hot plate welding mold; the heat insulation asbestos coats the non-working part of the hot mold of the hot plate welding mold; and the outer protective layer is fixedly arranged on the non-working part of the hot mold of the hot plate welding mold by virtue of rivets. According to the heat insulation and preservation layer disclosed by the invention, the hot mold part of the hot plate welding mold is protected to the greatest degree under the action of the heat insulation and preservation layer under the condition that the normal operation of the hot plate welding mold is not influenced; and because heat can be continuously dissipated in air convection and heat radiation forms, the hot plate welding mold can be rapidly heated and slowly cooled, the temperature is easily maintained in a stable range, the workload of a thermocouple is greatly reduced, and the energy consumption is reduced. Moreover, the temperature of the exposed non-working part of the hot mold of the hot plate welding mold is reduced to more than 100 DEG C, and the risk that an operator is scalded is greatly reduced.

Description

technical field [0001] The invention relates to a heat insulation structure of a hot plate welding mold, in particular to a heat insulation structure of a hot plate welding mold of an automobile lamp. Background technique [0002] Today's automotive combined rear lamps are generally welded by hot plate, that is, the transparent shell and base of the lamp are bonded together by melting and welding ribs, using the properties of thermoplastics. Board welding dies are realized. [0003] When welding lamps, in order to melt the welding ribs of the lampshade and the base, it is necessary to heat the upper and lower parts of the hot plate welding mold to about 320 degrees Celsius and maintain a basically stable temperature. This process is generally realized by heating with thermocouples arranged inside the hot mold of the hot plate welding mold. This method has the following problems: 1. The material of the hot mold part is generally iron, copper or aluminum alloy. When it is ke...

AI Technical Summary

Problems solved by technology

This method has the following problems: 1. The material of the hot mold part is generally iron, copper or aluminum alloy. When kept at a high temperature of more than 300 degrees Celsius for a long time, the heat will be continuously lost in the form of air convection and heat radiation. Even high-load work leads to high energy consumption; 2. The exposed hot plate welding mold hot mold part has the risk of burns when workers operate and pick up parts

Images