A device and method for manufacturing receptacles provided with decorative wrap-around labels by thermoforming
AssigneeErca
InventorMichel LUC
Life of this patent
Estimating the term…
Abstract
The device includes a mold block having at least one thermoforming chamber (28) having an inside surface (29), an axial opening (28A) through which a decorative wrap-around label (38) can be inserted into the chamber, and a moving end-wall (40) opposite from the opening. The end-wall is suitable for moving in an end segment (28A) of the chamber (28) between a positioning high level and at least one thermoforming low level, and the device has at least one tongue-and-groove set comprising a fin (42) on the end-wall (40) that is engaged in a notch (44) in the inside surface of the end segment (28B).
Claims14
A device for manufacturing receptacles provided with decorative wrap-around labels by thermoforming, the device including a mold block having at least one thermoforming chamber that has an inside surface, an axial opening, and a moving end-wall, opposite from the opening, and a wrap-around label insertion block having at least one wrap-around label insertion chamber and a piston mounted to move in the wrap-around label insertion chamber to push a decorative wrap-around label into the thermoforming chamber through said axial opening,
- the end-wall being suitable for moving in an end segment of the chamber between a positioning high level and at least one thermoforming low level, and the device comprising at least one tongue-and-groove set comprising a fin on the end-wall, said fin being engaged in a notch in the inside surface of the end segment.
A method of manufacturing receptacles provided with decorative wrap-around labels by thermoforming, by using a mold block including a thermoforming chamber having an inside surface, an axial opening, and a moving end-wall opposite from the opening, which method comprises pushing a decorative wrap-around label into the thermoforming chamber through said axial opening, and thermoforming a receptacle in the thermoforming chamber by pushing a thermoplastic material into said chamber via said axial opening, wherein
- prior to thermoforming the receptacle in the thermoforming chamber, the method further comprises placing the end-wall at a positioning high level in an end segment of the chamber in such a manner as to position the wrap-around label in the thermoforming chamber by causing the wrap-around label to co-operate with at least one fin on the end-wall that is engaged in a notch in the inside surface of the end segment and then placing the end-wall at a thermoforming low level for thermoforming the receptacle.
Dependencies are inferred from the claim text.