Centering and holding unit for capping head
First Claim
1. A unit for capping containers with a neck and filler mouth, comprising a plurality of capping devices movable along a predetermined path toward and away from the containers for fitting caps to respective containers during a passage when each capping device advances along at least one portion of the path accompanied by a relative container, the unit comprising gathering and aligning means, associated and operating in conjunction with each capping device, for gathering and aligning the cap with the neck of the container;
- wherein said gathering and aligning means comprise at least one first gathering and aligning element comprising a frustoconical surface, converging toward the container, and a cylindrical surface, positionable in direct contact with the container;
said frustoconical surface having a lower edge protruding internally of the area compassed by the mouth of the container at least when the cylindrical surface is in a locating position.
1 Assignment
0 Petitions
Accused Products
Abstract
Containers (2) having a threaded neck (3) and a mouth (4) are capped by a unit (1) appearing as a carousel (5) equipped with capping heads caused to advance along a circular path (P) and capable of axial movement toward and away from the containers in such a way that each one can be fitted with a relative cap (11); each capping head of the unit (1) incorporates a gripper (31) furnished with two jaws (30) presenting relative conical surfaces (26), and respective cylindrical surfaces (27) designed to locate against the neck (3) of the container. When the cylindrical surfaces (27) register against the outer surface of the neck (3), the conical surfaces (32) are positioned with the lower edges (28) encroaching on the area compassed by the mouth (4) in such a way that the cap (11) can be gathered and aligned with the neck (3) of the container (2) before being tightened, thereby ensuring a precise fit.
25 Citations
11 Claims
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1. A unit for capping containers with a neck and filler mouth, comprising a plurality of capping devices movable along a predetermined path toward and away from the containers for fitting caps to respective containers during a passage when each capping device advances along at least one portion of the path accompanied by a relative container, the unit comprising gathering and aligning means, associated and operating in conjunction with each capping device, for gathering and aligning the cap with the neck of the container;
- wherein said gathering and aligning means comprise at least one first gathering and aligning element comprising a frustoconical surface, converging toward the container, and a cylindrical surface, positionable in direct contact with the container;
said frustoconical surface having a lower edge protruding internally of the area compassed by the mouth of the container at least when the cylindrical surface is in a locating position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- wherein said gathering and aligning means comprise at least one first gathering and aligning element comprising a frustoconical surface, converging toward the container, and a cylindrical surface, positionable in direct contact with the container;
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9. A unit for capping containers with a neck and filler mouth, comprising a plurality of capping devices movable along a predetermined path toward and away from the containers for fitting caps to respective containers during a passage when each capping device advances along at least one portion of said path accompanied by a relative container, the unit comprising gathering and aligning means, associated and operating in conjunction with each capping device, for gathering and aligning the cap with the neck of the container;
- wherein said gathering and aligning means comprise two gathering and aligning elements each comprising a first chute-like surface angled convergently toward the container and a second locating surface positionable in direct contact with the container;
each first chute-like surface presenting a lower edge positionable internally of the area compassed by the mouth of the container at least when the second surface is in the locating position;
the locating surface being placed beneath the chute-like surface and being distanced farther from the container neck than the lower edge of the chute-like surface. - View Dependent Claims (10, 11)
- wherein said gathering and aligning means comprise two gathering and aligning elements each comprising a first chute-like surface angled convergently toward the container and a second locating surface positionable in direct contact with the container;
Specification