Apparatus for applying labels to blow molded articles

In combination with an apparatus for forming hollow plastic articles wherein parisons are blown outwardly into conformity with the cavities of an array of sets of parible mold sections which open and close and are in a predetermined array, an apparatus for handling labels which comprises,

• a magazine for supporting labels in a stack,
• an endless belt transfer conveyor of the vacuum typo positioned adjacent said magazine,
• means for indexing said belt in predetermined distances corresponding to the spaces between the sets of said mold sections of said array of said sets of mold sections,
• means for successively removing a label from the magazine and depositing it on the conveyor, such that the labels are arranged in a predetermined array of spaced labels with the spacing between the labels on the endless transfer conveyor corresponding to the spaces between the sets of mold sections comprising a pick-up and delivery device,
• means for moving said pick-up and delivery device adjacent the magazine for picking up a label,
• and means for translating said pick-up and delivery device to deposit said labels consecutively onto said conveyor as the conveyor is indexed comprising a carriage,
• means for removing and simultaneously delivering said labels comprising a plurality of label delivery devices corresponding in number to the number of sets of mold sections and positioned at a spacing corresponding to the spacing between the labels in the array on the endless transfer conveyor,
• vacuum devices for moving said label delivery devices from a position adjacent said conveyor to a position within an array of the sets of open partible mold sections,
• said delivery devices having means for removing said labels from said conveyor means and means for depositing said labels within said mold sections,
• means for guiding said carriage in movement in a linear path parallel to the conveyor,
• and an endless reversible screw parallel to the conveyor operable to move said carriage back and forth in said linear path,
• said pick-up and delivery device being mounted for pivotal movement on saied carriage,
• interengaging means between said pick-up and delivery device and said carriage operable upon movement of the carriage to the extremes of its linear movement such that the pick-up and delivery device is moved at one end of said linear movement into engagement with the magazine for picking up a label and upon return movement is moved out of engagement with a magazine and upon returning to the other end of the linear movement in the opposite direction is moved bringing the label into engagement with the endless conveyor means,
• said interengaging means comprising a secondary carriage mounted on said first mentioned carriage,
• said secondary carriage being connected to said pick-up and delivery device and movable relative to said first carriage,
• said interengaging means comprising a cam on said second carriage and a cam follower on said pick-up device.