Integrally molded refrigerator door and manufacturing method thereof
A refrigerator door, integrated technology, applied to other household appliances, household refrigeration devices, lighting and heating equipment, etc., can solve the problems of leakage of bubbles, low production cost, and high production cost
Active Publication Date: 2011-06-01
TAIZHOU LG ELECTRONICS REFRIGERATOR CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to provide a refrigerator door liner and door liner that can prevent side bubbles from leaking due to the many assembly parts and high production costs in the traditional assembly method. Refrigerator door with integrally formed refrigerator door and a refrigerator door manufacturing method with high production efficiency and low production cost
This cannot be done in the traditional assembly process
Method used
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[0018] Now in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0019] First extrude a hollow square tube the width of the refrigerator door out of plastic, preferably ABS. Then cut this hollow square tube according to the height of the refrigerator door as follows figure 1 Square hollow tube shown slightly longer than refrigerator door height. Then put this cut square hollow tube into such as figure 2 Blowing molding is carried out in the blowing mold of the refrigerator. During the blowing process, the structure of the refrigerator door panel 2 is formed in the upper mold 5, the structure of the refrigerator door liner 1 is formed in the lower mold 4, and the cavity of the foaming cavity 3 Structures are formed in the cavity 6 . Cut off the excess waste at both ends of the inflated square hollow tube to obtain the following image 3 The integrated structure shown. This integrated structure according to the Figure ...
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The invention provides a refrigerator door of which the inner container and the door plate are integrally molded and a manufacturing method thereof. In the invention, the inner container and the door plate of the refrigerator door form an integral structure formed by blowing a hollow pipe in a die. The manufacturing method of the refrigerator door comprises the following steps of: (a) extruding a square hollow pipe with the width of the refrigerator door by utilizing ABS (Acrylonitrile Butadiene Styrene) or other plastics; (b) cutting off the hollow pipe, wherein the length of an obtained hollow pipe is longer than the required height of the refrigerator door; (c) putting the cut set rectangular hollow pipe into a blowing die to blow and mold; (d) cutting off waste materials at two ends after the molding is finished; (e) mounting an upper decorative cover and a lower decorative cover and foaming; and (f) carrying out film coating and spraying on a panel after foaming to achieve the purpose of decoration. The invention has the advantages of side bubble leakage prevention, fewer preassemble procedures, low cost and capability of automatic production.
Description
technical field [0001] The invention relates to an integrally formed refrigerator door and a manufacturing method thereof, specifically a refrigerator door in which a door liner and a door panel are integrally formed and a manufacturing method thereof. Background technique [0002] Refrigerator has widely existed in common people's family as a kind of necessities of life, and refrigerator door has important effect as the main component of refrigerator. The refrigerator door mainly includes a door liner, a door panel, a heat insulation layer between the door liner and the door panel, and upper and lower decorative cover members. In the traditional manufacturing method, because the door liner and the two sides of the door panel are assembled together, there are gaps, so the phenomenon of side foam leakage is prone to occur during the foaming process, which seriously affects the quality of the refrigerator door. At the same time, due to the many pre-assembled parts and cumbers...
Claims
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Inventor李彩芝
OwnerTAIZHOU LG ELECTRONICS REFRIGERATOR CO LTD