Plastic component, in particular plastic suds container, and method for producing the plastic component

Abstract

The invention relates in particular to a plastic suds container, which due to the manufacturing process has joint lines, which are produced in particular during injection molding by means of a plurality of gates. The component according to the invention is characterized by elongated joint lines, the shapes of which have been changed. Perpendicularly with respect to the extension thereof, the intersection lines of the joint lines have deformations which are bell-shaped or are broken up in some areas. Components of said type have increased strength in the region of the joint line. The danger of cracks forming in the region of the joint lines is minimised. In the method for producing such a component, the delivery of plastic material via at least one of the gates present in the injection mould briefly takes place at reduced pressure or is briefly interrupted. The control is done via valves in the feed lines to the injection mould. The time frame for the control is determined by means of simulation or empirically. The existing equipment and tools can be used for the method, and no additional investments are necessary.

Description

technical field [0001] The invention relates to a plastic component with a joint line, in particular a plastic tub for a washing machine or a washer / dryer, and to an injection molding method for the manufacture of such a plastic component, wherein, during the injection molding process, molten The plastic is introduced into the injection molding tool by means of several spatially distributed inlets. Background technique [0002] The invention is particularly applicable to plastic buckets and their manufacture, which are subjected to high levels of stress when used as intended. Tubs for washing machines that have a loading opening at the front with a so-called front loading site are components that are subjected to such high levels of stress. The side wall of such a tub has a bearing holder made of metal provided at the center, in which a shaft or a rotating pin of the laundry drum engages, is supported on one side and is arranged approximately horizontally. During the rotat...

AI Technical Summary

Problems solved by technology

It is also disadvantageous that a higher level of tension is generated in the area of ​​the tab, which always results in a greater growth of the material

[0012] The applicability of the above-mentioned manufacturing method is limited, since this solution cannot be applied in the area of ​​the bearing holder, also called raised, because the introduction of the variation of the geometry mentioned in the above-mentioned patent application is not sufficient space available

Furthermore, this geometric change cannot preclude the formation of crossed, approximately straight joint lines in the material

Images