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Injection molding equipment and injection molding method for water heater insulation layer

A technology for injection molding equipment and water heaters, which is applied in the field of injection molding equipment for the insulation layer of water heaters. It can solve problems such as large differences in density and thermal conductivity, decline in thermal insulation performance, and uneven heat loss, so as to reduce heat loss, improve thermal insulation performance, Strengthen the effect of fixed position

Active Publication Date: 2016-09-14
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the machine is hung horizontally, at the same horizontal position, although the water temperature is the same, the density and thermal conductivity are very different, resulting in uneven heat loss, and finally the insulation performance declines

Method used

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  • Injection molding equipment and injection molding method for water heater insulation layer
  • Injection molding equipment and injection molding method for water heater insulation layer
  • Injection molding equipment and injection molding method for water heater insulation layer

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Embodiment Construction

[0037] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0038] When injecting the insulation layer of the water heater, the outer casing and the inner tank of the water heater should be positioned first, so that a space distance can be filled with foam material between the two, and the relative position of the two should be kept fixed during the injection process. . According to the prior art, the wall-mounted rear plate 51 of the water heater casing 5 is usually set as a detachable structure, such as Figure 9 and Figure 10 shown. That is, when the wall-hanging back plate 51 is detached, an opening is formed on the shell 5 , and the liner 7 can be put into the shell 5 . Moreover, the positions of the outer wall hanger 71 of the water heater liner 7 and the wall-mounted rear plate 51 of the casing 5 are corresponding. When the water heater was in the installation position, the wall-mounted rear plate 51...

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Abstract

The invention provides an injection molding equipment for the heat preservation layer of a water heater, which includes a positioning frame for positioning the shell of the water heater, and a set of positioning pins for positioning the inner tank of the water heater in the cavity of the shell; the set of positioning pins is connected to the positioning frame On, and detachably connected with the water pipe mouth on the inner tank of the water heater and the pin hole of the outer wall hanger; the positioning frame and the positioning pin group fix the axis of the shell and the cylinder of the inner tank in the horizontal direction. In addition, the present invention also provides a method of using the above-mentioned injection molding equipment for injection molding, including the following steps: Step 1, through the positioning frame and the positioning pin group, fix the axis of the shell of the water heater and the cylinder of the inner tank in the horizontal direction ; Step 2, using the injection device to fill the foaming material from the injection port of the shell into the space between the shell and the inner tank of the water heater to form an insulation layer for the water heater. By adopting the injection molding equipment and method of the present invention, the thermal insulation balance of the thermal insulation layer can be realized, and the heat loss can be effectively reduced.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to an injection molding device and an injection molding method for a water heater insulation layer. Background technique [0002] In the production process of electric water heaters, in order to reduce heat loss and improve the thermal insulation performance of the product, polyurethane foam is usually filled between the shell and the inner tank of the water heater to keep the hot water in the inner tank warm. In the prior art, the injection molding process adopted is to place the cylinder body of the water heater vertically so that the flange opening of the water heater shell faces upwards, and fill the foaming material from there. For example, in Chinese patent 200420088706.X, an electric water heater is disclosed, which includes an outer shell 1, an inner tank 2 assembly, a heat pipe assembly, a control element, pipe fittings and an insulating layer 3 arranged between the oute...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C44/42B29C44/18
Inventor 孙强刘志强于水生蔡德华
Owner HAIER GRP CORP
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