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Rotary machine with separately controllable stations

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Rotary machine with separately controllable stations


A rotary machine may have multiple stations that have a linear motion operated by a cam and a rotational motion operated by individual motors mounted on each station. Each station may perform a motion profile that is proportional to the machine's central axis rotation or, in some cases, independent of the central axis rotation. In some embodiments, each station may rotate to orient a part prior to processing. In one embodiment, the cam driven linear motion may enable a station to lower for loading and unloading, then raise for processing. The rotary machine may have various mechanisms at each station for processing a part. One such embodiment is a rotary machine that may be outfitted with compound dispensing mechanisms at each station.

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Inventors: William W. Weil, Scott J. Woolley, Ian J. Buckley, James N. McBride, Harly S. Crabtree, Bert Johansson
USPTO Applicaton #: #20120269979 - Class: 4274211 (USPTO) - 10/25/12 - Class 427 
Coating Processes > Spraying

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The Patent Description & Claims data below is from USPTO Patent Application 20120269979, Rotary machine with separately controllable stations.

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CROSS REFERENCE TO RELATED APPLICATIONS

This patent application is based upon and claims priority to and benefit of pending U.S. patent application Ser. No. 11/622422 filed 11 Jan. 2007 entitled “Closure Sealant Dispenser” by William W. Weil, et al., which is a divisional application of U.S. patent application Ser. No. 10/670,176 entitled “Closure Sealant Dispenser” by William W. Weil, et al and issued as U.S. Pat. No. 7,179,333 on 20 Feb. 2007, which in turn claims priority to U.S. Provisional Patent Application Ser. No. 60/412988 entitled “Can Sealant Dispenser” by William W. Weil, et al. filed 23 Sep. 2002, and to U.S. patent application Ser. No. 12/194,380 filed 19 Aug. 2008 entitled “Rotary Machine with Separately Controllable Stations” by William W. Weil, et al., the entire contents of which are hereby specifically incorporated by reference for all they disclose and teach.

BACKGROUND

Rotary processing machines are used in many types of high speed processes, such as in the packaging industry. A rotary machine has a center axis about which multiple stations rotate. Each station may process a unit as the station rotates about the axis. Such machines may be used for various manufacturing processes from forming containers to filling, capping, and labeling, as well as other operations.

SUMMARY

A rotary machine may have multiple stations that have a linear motion operated by a cam and a rotational motion operated by individual motors mounted on each station. Each station may perform a motion profile that is proportional to the machine\'s central axis rotation or, in some cases, independent of the central axis rotation. In some embodiments, each station may rotate to orient a part prior to processing. In one embodiment, the cam driven linear motion may enable a station to lower for loading and unloading, then raise for processing. The rotary machine may have various mechanisms at each station for processing a part. One such embodiment is a rotary machine that may be outfitted with compound dispensing mechanisms at each station.

This Summary is provided to introduce a selection of concepts in a simplified form that are further described below in the Detailed Description. This Summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS

In the drawings,

FIG. 1 is a diagram illustration of an embodiment showing an example of a rotary machine.

FIG. 2 is a cross sectional diagram illustration of an embodiment showing a station with an individually controllable motor and a cam driven linear motion.

FIG. 3 is a top view diagram illustration of an embodiment showing a rotary machine with various operational zones.

FIG. 4 is a flowchart illustration of an embodiment showing a method for controlling a rotary machine.

FIG. 5 is a diagram illustration of an embodiment showing a system for controlling a rotary machine.

DETAILED DESCRIPTION

A rotary machine with multiple modular stations may use independently controllable motors on each station. The independently controllable motors may enable many different types of motion profiles that may not be readily available or even possible with other types of rotary machines.

The stations may be constructed with a motor and a cam operated linear motion. The cam may cause the station to move linearly as the rotary machine turns about its axis. In one such embodiment, a cam may enable a station to lift a part into place and rotate the part under an applicator or other processor. After the processing is complete, the cam may lower the station into place so that the part may be removed and another part added. Such an embodiment may be useful for depositing liner compound on can ends, lids, caps, and other products.

The types of station motion profiles that may be performed may include constant speed profiles, variable speed profiles, and motion that may be coordinated with other sensors, such as an orientation profile.

Throughout this specification, like reference numbers signify the same elements throughout the description of the figures.

When elements are referred to as being “connected” or “coupled,” the elements can be directly connected or coupled together or one or more intervening elements may also be present. In contrast, when elements are referred to as being “directly connected” or “directly coupled,” there are no intervening elements present.



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stats Patent Info
Application #
US 20120269979 A1
Publish Date
10/25/2012
Document #
13541030
File Date
07/03/2012
USPTO Class
4274211
Other USPTO Classes
74 55
International Class
/
Drawings
6



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