Apparatus for affixing adhesive labels to packaged goods
申请公布号:ZA9607224(B)
申请号:ZA19960007224
申请日期:1996.08.26
申请公布日期:1997.03.03
发明人:WINFRIED VICKTORIUS;RALF DIPPE
分类号:B65C1/02;B65C9/00;B65C9/18;B65C9/40
主分类号:B65C1/02
摘要:PCT No. PCT/DE96/01560 Sec. 371 Date Feb. 25, 1998 Sec. 102(e) Date Feb. 25, 1998 PCT Filed Aug. 23, 1996 PCT Pub. No. WO97/08055 PCT Pub. Date Mar. 6, 1997A device for attaching adhesive labels to packaged goods has a compressed air source and a vacuum source that are alternatingly connected by program-controlled two way valves to air inlet openings of a pneumatic cylinder. A main piston is connected to the upper end of a hollow piston rod and is guided between an upper and a lower dead center position in the pneumatic cylinder. The hollow piston rod has a lateral air opening within the cylinder. A suction holder is connected to a lower end of the hollow rod positioned external to the pneumatic cylinder. The suction holder has a suction channel axially connectable to the hollow piston rod and closeable partially by a check valve. A label transfer unit has a label transfer position in which a respective label is positioned at a small distance below the suction holder when in its upper position. A control device lowers the suction holder into the lower position for receiving the label. The control device has a control member that reciprocates vertically parallel to the pneumatic cylinder and cooperates with an abutment positioned external to the cylinder at the piston rod/suction holder. The main piston has a permanent magnet at its upper surface, and a counter magnet is positioned at the cylinder opposite the permanent magnet when the main piston is in its upper dead center position. A travel sensor is arranged external to the pneumatic cylinder for controlling the required stroke of the main piston.
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