Patent GB-1001050-A (GB)
Title: Apparatus for applying gum to a label picker
IPC: B65C9/16
Filed: 1964-01-14
Abstract: 1,001,050. Labelling machines. GEO. J. MEYER MANUFACTURING CO. Jan. 14, 1964 [May 20, 1963], No. 1568/64. Heading B8F. In a labelling machine of the kind wherein a gumcoated picker K<SP>1</SP>, K<SP>2</SP>, Fig. 1, of the separable-blade type swings from a position in which it takes a label from a magazine M, Fig. 3, to a position where it presents the label in the path of a moving article B<SP>2</SP> passing between the separated blades K<SP>1</SP>, K<SP>2</SP> to receive the label which is pressed thereon by a presser pad N<SP>1</SP>, N<SP>2</SP>, two separate gum-transfer rolls R<SP>1</SP>, R<SP>2</SP> on rock arms 14a, 17a are provided for gumming the picker during each upward swing to the magazine, the arrangement being such that alternately one roll R<SP>2</SP> (R<SP>1</SP>) is receiving gum from a stationary gumsupply roll 18a while the other roll R<SP>1</SP> (R<SP>2</SP>) is applying gum to the picker. The articles may be fed in a rectilinear path but, as shown, the machine is of the rotary type in which a turret Y has battle carriers Rm, Bm, each associated with the presser pad having upper and lower parts N<SP>1</SP>, N<SP>2</SP> for pressing the neck and body labels. Since for a high speed machine, it is necessary to keep the distance between bottles to a minimum, in carrying a label from the magazine in a simple swinging motion, the inner blade K<SP>1</SP> of the picker would contact the previously labelled bottle B<SP>1</SP> before the latter could clear the picker path. To avoid this, the picker blades K<SP>1</SP>, K<SP>2</SP> are arranged on telescopic rockshafts 36, 38, Fig. 10, controlled by cam and lever mechanism such that relative movement between the shafts is effected for separation of the blades on presentation of the label to a bottle and just prior to this the shafts are moved together inwardly so that the picker blades K<SP>1</SP>, K<SP>2</SP> are moved inwardly and radially of the turret Y into correct position for separation and presentation to the bottle B<SP>2</SP>. The lateral and radial movement of the picker blades occurs only at the end of the swinging movement so that the other bottles are avoided. After the label is applied, the picker moves outwardly as it swings upwardly towards the magazine which is positioned appropriately. To avoid damage to the machine when a bottle is misplaced in its carrier and interferes with the downward motion of the picker, a groove of each of the picker-actuating cams is provided with an abnormally wide portion permitting a cam follower roll, normally spring- urged to follow the outer wall of the cam groove, to move radially inward in response to unusual force, so that the picker will not be forced downwardly to the label transfer point. As a further safety measure proximity switches are arranged in the drive circuit of the machine to stop it if movement of the picker is impeded. The gum is contained in a bath Z, Fig. 2, in which is rotatably mounted a gum roll or disc 20 formed with teeth 317 in driving engagement with teeth 316, Fig. 1, formed on the midportion of the gum-supply roll 18a, the rolls 18o, 20 rotating continuously to insure constant agitation of the gum. Srapers 22, 22a operate to spread the gum evenly on the roll 18a and to remove gum from the ends of the roll. The transfer rolls R<SP>1</SP>, R<SP>2</SP> are tapered and formed with grooves.