Abstract: A cutting apparatus and method are disclosed for making a tamper device of a closing capsule, in which the capsule is fed to a cutting device on which simultaneously a first force is exerted that maintains a cutting portion of the device in an operative cutting position and a second force that would tend to make the cutting portion retreat to a safety position, the first force being greater than the second force and in which in the event of an anomalous situation like an interruption to an electric power supply, the first force is reduced so that the second force can exceed the first force and move the cutting portion to the safety position.

Abstract: A cutting apparatus and method are disclosed to form the preferential fracture line of a capsule for closing containers, in which a rotating carousel carries a plurality of spindles, each of which can engage a respective capsule that is rolled against a contact surface made of ultra-high molecular weight polyethylene, and in which a fixed blade with a circular sector performs the cut on the rolling capsule, the cutting apparatus and method being applicable to capsules of different dimensions and types.

Abstract: A cutting method and apparatus for closures of the “tethered” type are disclosed, in which a spindle that carries a closure is moved to a cutting device with one or more horizontal blades and at least one vertical or oblique blade. During cutting, the spindle rotates and the closure rolls on the cutting device. The spindle, which is fed several times to the cutting device carrying each time a different closure, comprises a portion made of a softer material than the blades so that during cutting the blades penetrate the material of the closure and then sink into the softer portion of the spindle. Feeding the spindle that carries the closure to the cutting device is coordinated with rotation of the spindle so that the vertical or oblique blade, each time that the spindle is fed to the cutting device, always meets the same zone of the softer portion of the spindle.

Abstract: A cutting apparatus is disclosed to form a weakening line of a of an anti-tampering device of a cap made of plastics for closing a container, in which the cutting apparatus includes a feeding device for feeding the caps along a feeding path, a blade arranged in the feeding path to form the weakening line, at least one abutting wall on which the cap can roll, and a micrometric screw configured for adjusting the corresponding position of the blade with respect to the abutting wall, so that blade wear can be compensated by advancing the blade to the feeding path of the caps independently of the abutting wall.

Abstract: A cutting apparatus and method are disclosed to form the preferential fracture line of a capsule for closing containers, in which a rotating carousel carries a plurality of spindles, each of which can engage a respective capsule that is rolled against a contact surface made of ultra-high molecular weight polyethylene, and in which a fixed blade with a circular sector performs the cut on the rolling capsule, the cutting apparatus and method being applicable to capsules of different dimensions and types.