A screw capper 1 includes a capping head 6 which grips a cap 5, a servo motor 7 which rotates the capping head, a voltmeter 10 which measures the torque of the capping head, an encoder 11 which detects the rotational angle of the capping head, and a control device 8 which controls the servo motor. In the screw capper, whether rotational fastening is acceptable is to be determined during the rotational fastening, the measured value of the encoder is measured from a predetermined measurement start...

A capping machine in which open containers are successively brought to a capping station where a respective container is held against rotation to permit closing of the open container by rotating movement of a cap fed from a reservoir to a pick-up station; a head frame assembly of the machine includes a spindle assembly carrying a chuck at the lower spindle end and drivingly connected by way of an adjustable clutch and by way of a positive drive connection with a driving motor; additionally, the ...

A capping machine for open top cups has an elevator for lifting a tray of the cups to be capped. A unit positioned above the elevator is subdivided into vertical pockets one for receiving each cup in the tray. The pockets are delineated by walls having knife edges at the bottom. Heating irons are disposed in the pockets for contacting a heat sealable sheet of material against the rims of the cups. Further upward movement of the tray causes a retraction of the heating irons and the sheet to conta...

An apparatus for applying closures to receptacles, particularly designed for applying caps to cylindrical cartons. A vacuum device receives the caps from a magazine and places each cap on a carton centered by a conveying and positioning apparatus.

A method for applying a threaded closure to a container, said closure having sealing means in or towards the crown thereof, which method comprises applying the closure to the container by the application of a predetermined rotary torque thereto, continuing the application of the closure to the container until the desired torque applied is obtained and thereafter applying axial pressure to the closure crown towards and on to the container while simultaneously applying said torque whereby the clos...

A capping apparatus, in particular for applying PRESON.TM. style caps to glass jars, comprising a chute with grooved sidewalls to allow free passage of the caps irrespective of tab orientation. At the chute outlet, stops depend from a bridge bar in order to engage the leading cap above its tab, again allowing caps to be presented in random orientation.

A capping apparatus includes a capping head 3 which is provided with a rotatable spindle. A plurality of permanent magnets 51 are embedded around the entire outer periphery at the upper end of the spindle, with adjacent permanent magnets 51 presenting magnetic poles of different polarities. An arcuate rotation imparting member 53 is fixedly mounted and includes a plurality of permanent magnets 55 which are disposed along a locus of travel of the permanent magnets 51 on the capping head 3, with a...

A capping machine for applying plastic screw-on caps (10) having a tamper evident band 38 to flexible sided round containers (12) having a neck provided with a radially extending flange (24) adjacent the open top of the container. The capping machine includes a portion (114) rotatable about a stationary portion (58), the rotatable portion including a plurality of operating stations (116). Each operating station has a chuck (118) and a novel gripping structure (120) capable of firmly engaging the...

Apparatus for applying caps to containers such as glass bottles or vials having a flange at their mouth end and crimping the cap on each container under the flange, in which the containers with caps thereon are gripped at top and bottom in a rotary turret, carried around in a circular path by the turret, spun on their axes as they are carried around by the turret, and the caps are crimped by bringing crimping tools carried by the turret into crimping engagement with the caps.

An apparatus to cap in succession containers transported in serial order on a conveyor belt. The apparatus comprises a cap dispensing station operating in a timed-relationship with the container feed rate to loosely apply on each container a screw-type cap in thread alignment with the threads on the container neck. The cap dispensing station includes a cap relase passage at least partially closed by a resilient lip preventing a cap to travel through the passage under the effect of gravity. A sel...