Method and device for making a container provided with a label
OwnerPaul A. Mullerinventor
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Abstract
The present invention relates to a method and to Apparatus for molding a receptacle fitted with a covering label. The technical field of the invention is that of molding a receptacle out of plastics material. In a method of molding a receptacle fitted with a covering label (1b) which is inserted into the mold (93) prior to injection, the label is shaped and at least two edges of the label are joined together, after which the shaped label is placed on a male portion (91) of the mold.
Claims14
A method of injection molding a receptacle fitted with a flat covering label having at least two edges and a thickness less than or equal to 80 microns, in which method the label is inserted into a mold prior to molding, the mold having a mold core, a mold matrix and a molding space between the core and the matrix, wherein the label is preshaped by sealing said at least two edges together, and the method comprises the successive steps of:
- (i) gripping with movable pneumatic gripping means an outside face of the preshaped label having said at least two edges sealed together, said preshaped label being folded in a flat configuration;
- (ii) reshaping the folded label in an unflattened rolled configuration with said movable pneumatic gripping means;
- (iii) transferring and depositing the unflattened label onto the core by the movable pneumatic gripping means;
- (iv) closing the mold;
- and
- (v) injecting plastics material in the molding space.
An apparatus for injection molding a receptacle, comprising:
- a mold having a male portion and a female portion for molding the receptacle;
- and
- movable pneumatic transfer means capable of depositing a label in the mold before molding the receptacle;
- wherein said male portion is capable of receiving a covering rolled label having at least two edges sealed together and attaching said label to the receptacle;
- wherein said movable pneumatic transfer means are capable of pneumatically gripping said label under a folded flat configuration by contacting an outside face of said label, reshaping said folded flat label into a rolled unflattened configuration, and depositing the said rolled label on said male portion of the mold;
- and
- wherein said apparatus further comprises means for deploying and expanding said label from the folded flat configuration the rolled unflattened configuration, said means expanding and deploying the side walls of said label from its inside.
Dependencies are inferred from the claim text.