Patent RU-2288096-C2 (RU)
Inventor: BOSSARD MISHEL
IPC: B29C43/14
Filed: 2002-02-25
Granted: 2006-11-27
Abstract: FIELD: chemical industry; methods of manufacture of the combined items out of the plastic components. 
     SUBSTANCE: the invention is pertaining to the method of manufacture of the combined items out of the plastic components, such as collapsible tubes with caps, the containers heads with caps, slewing covers. The method provides for manufacture of the combined items or the components of the items containing integration out of two components movable with respect to each other at least with one degree of freedom, the corresponding surfaces of which envelop partially the molds adding each other so, that they are present in one geometrical configuration and are rigidly connected to each other on the common surface, tightly fitting to each other without a clearance. The method provides for the molding of the first component out of one or several plastic materials by pressure or compression as a result of approach of the first mold and the second mold. The cavity of the second mold contains the indicated common surface. Both cavities connected by both molds limit in the end of the approach the volume of the indicated first component. Remove the indicated second mold. At that the first component remains rigidly connected with the indicated first mold, which afterwards fulfills the role of the support tool. Produce the pills from the certain amount of one or several thermoplastic material. At that the plastic material or the plastic materials, which are not mixed with plastic material or plastic materials located on the periphery of the given pill, are not mixed with plastic material or the plastic materials located on the periphery of the other component. At that the indicated pill is heated up to the temperature exceeding the temperature of the softening point of the thermoplastic material or thermoplastic materials forming it. Place the indicated pill on the surface of the block of the first component rigidly connected with the support tool, or into the cavity of the third mold for a casting. The third mold is mounted opposite to the block of the first component rigidly connected with the support tool. At that the indicated third mold contains the cavity, which during the contact with the indicated block of the first component rigidly connected with the support tool together with the surface of the first component and, if necessary, with the part of the cavity of the support tool limits the volume of the second component. Then approach the indicated blocks of the first component rigidly connected with the support tool and the third mold up to their touch. At that the indicated approach results in the compression of the pill for putting it into the required shape of the second component. Further, conduct removal of the support tool and the third mold and the following removal of the block of both components molded this way. The invention describes one more version of realization of the method. The invention allows to fulfill both components only from the plastic material and to dilate possibilities of selection of plastic material for realization of the second component. 
     EFFECT: the invention allows to fulfill both components only from the plastic material and to dilate possibilities of selection of plastic material for realization of the second component. 
     24 cl, 8 dwg