Novel paraffin injection valve of paraffin continuous molding machine

Abstract

The invention aims to provide a novel paraffin injection valve of a paraffin continuous molding machine and solves the problem in the existing paraffin injection valve. The paraffin injection valve provided by the invention is composed of a cylinder, a valve rod, a valve body, a valve core and a valve seat, wherein the valve body is a cylindrical three-way valve body, the lower end of the valve body is processed to form the valve seat; an entrance and a reflux inlet of the three-way valve body are distributed on the side corresponding to the middle-upper part of the cylindrical valve body andform a 90-degree angle along the circumference, the entrance is arranged on the side of the middle-lower part; the entrance is connected with a feeding pipe orifice wire, the reflux inlet is connected with a reflux pipeline wire, an exit is arranged on the lower end of the valve seat and forms a bell mouth shape that is narrower at the top and wider at the bottom; the cylinder is connected with the upper end of the valve rod, the lower end of the valve rod is arranged on the lower part in the valve body, and the end part is lined with the valve core; and when the paraffin injection valve works, the paraffin injection valve is opened or closed by the valve core. The paraffin injection valve provided by the invention has the following advantages: the structure is simple and reasonable, the volume is small and the weight is light; pipelines are connected in a straight line, thus the efficiency is high; sputtering can be avoided, energy conservation and environmental protection can be realized, paraffin injection precision is high; and the outer layer of the valve body is provided with a heating device, so that the temperature of liquid paraffin can be adjusted.

Description

technical field [0001] The invention relates to a wax injection device for a continuous paraffin molding machine, in particular to a novel wax injection valve for a continuous paraffin molding machine. Background technique [0002] The existing paraffin continuous molding machine uses a three-way rotary switching valve, and its structure is basically: the valve body is a cuboid made of alloy steel, and the size after processing is 410mm×195mm×96mm, and it is fixed on the bottom of the trough; The valve stem is installed longitudinally through the valve body, which can be directly controlled by pneumatics and indirectly controlled by electrics. Two half-through and one full-through oval holes are processed in sequence on the valve body, which are respectively material inlets; when the liquid wax cylinder When the piston is lifted, the valve stem rotates by linkage action. When the liquid wax in the liquid wax cylinder reaches the limit, the valve stem rotates 45° to close the...

AI Technical Summary

Problems solved by technology

Its disadvantages are: ① complex process, many procedures, and long manufacturing cycle; ② large volume, large material consumption, and large space occupation; ③ heavy weight, and it is installed on the bottom of the trough, which is extremely inconvenient for maintenance and replacement; ④ Two kinds of power are required to be controlled separately during work, and the external power system is complicated; ⑤ Due to the mechanical interlocking transmission, the timing and quantitative wax injection time is limited, and it takes 10 seconds to inject 5 kg of liquid wax, so the efficiency is low; ⑥ Because the outlet flow channel is straight-through There is no buffer space, and the flow rate is faster under the same pressure. When it is injected into the wax plate, it will form a reflection and splash in the form of mist, which not only affects the accuracy of wax injection, but also causes waste of raw materials and pollutes the environment.

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