Patent ID: 6783352
Filing Date: 2004-08-31
Classification: B29C

Abstract:
A wax liquid temperature control device of a wax injector comprising a wax liquid temperature control cylinder, a coal oil heat exchanger, a wax storage tank, a wax injecting cylinder, and a water storage tank; whereinthe wax liquid temperature control cylinder is a device for sucking wax liquid from a wax storage tank to the wax injecting cylinder; the wax liquid temperature control cylinder includes an outer cylinder body, an inner cylinder body, and a linear moving means; the outer cylinder body has an outer barrel body; the interior of the outer barrel body is installed with an inner barrel body; a periphery of the inner barrel cylinder are enclosed by a helical ring that forms a helical flow channel for providing wax liquid to cool or heat the coal oil; thereby, the inner cylinder body is capable to be inserted into the outer cylinder body to telescopically move therein; the coal oil heat exchanger is the heat exchanger for reducing or increasing the temperature of the coal oil; the exchanger is installed with an oil tube which is communicated with the wax liquid temperature control cylinder so as to form as a cyclic flow path; thereby, the wax liquid in the wax liquid temperature control cylinder can be cooled or heated by coal oil; the coal oil heat exchanger is further installed with a water tube which is communicated with the water storage tank; the coal oil heat exchanger is arranged with a coal oil tube which is communicated with a wax storage tank; therefore, high temperature coal oil in the wax storage tank is selectively sucked for heating the wax liquid temperature control cylinder; the wax storage tank stores high temperature coal oil therein to heat the wax so as to form high temperature melt wax liquid; the wax liquid is filled in the wax injecting cylinder for storage; the wax storage tank is arranged with a wax liquid tube which is communicated with the wax liquid temperature control cylinder; the wax injecting cylinder is an injecting device for storing wax in a predetermined temperature before wax is injected into a mold; the wax liquid tube is installed, therefore, the wax liquid sucked by the wax liquid temperature control cylinder is transferred to the wax injecting cylinder by the wax liquid tube; wherein the coal oil heat exchanger controls the temperature of the coal oil in a predetermined range, then the coal oil is transferred to the wax liquid temperature control cylinder for controlling the temperature of the wax liquid so that the wax liquid is retained in a predetermined temperature for being injecting to a mold by the wax injecting cylinder so that wax liquid can fully fill the mold rapidly and is cooled rapidly.