# US 9,434,498 B2 · Device for receiving a workpiece for a workpiece carrier circulation system of a production machine

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- Number: US 9,434,498 B2
- Document ID: US9434498B2
- Status: Granted
- Kind: B2
- Application number: 14/646,167
- Filed: 2013-11-06
- Published: 2015-10-22
- Granted: 2016-09-06
- Earliest claimed: 2012-11-28
- Assignees: Schaeffler Technologies AG & Co. KG
- Applicants: Schaeffler Technologies AG & Co. KG
- Inventors: Gunter Schmid; Ralf Schuler; Andreas Fruhwald
- Web page: https://patentgrep.com/patent/US9434498B2

## CPC

- B65C 9/06: Devices for presenting articles in predetermined attitude or position at labelling station
- B65C 9/04: having means for rotating the articles
- B65G 47/244: by turning them about an axis substantially perpendicular to the conveying plane
- B65G 47/846: {Star-shaped wheels or wheels equipped with article-engaging elements}
- B65G 2201/0261: Puck as article support
- B65C: LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES (nailing or stapling in general B25C, B27F; applying labels for packaging purposes B65B; labels, name-plates G09F ){(series-printing machines B41L; containers for the storage or transport of packages B65D)}
- B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D)

## Abstract

A device for receiving a workpiece for a workpiece carrier circulation system of a production machine is provided, including a workpiece carrier with a workpiece receiver and a holder to be arranged on the machine for receiving the workpiece carrier in a detachable, temporary manner. The workpiece carrier includes a rotor section (5) which, when the workpiece carrier is received in the holder, interacts with a stator (20) provided on the holder, forming a torque motor and thus being rotatable about an axis in the holder.

## Claims

### Claim 1

A device for receiving a workpiece for a workpiece carrier circulating system of a production machine, comprising a workpiece carrier with a workpiece receiver and a holder arranged on a machine side for detachable, temporary holding of the workpiece carrier, the workpiece carrier is rotatable about an axis (D), and is holdable in the holder, and has a rotor section that interacts, when it is held in the holder, with a stator provided on the holder and this interaction forms a torque motor, the rotor section is constructed as a rotating projection that extends radially and has integrated permanent magnets and is held, in a held position, between stator windings of the stator that is open at a side, with said windings being arranged at a distance from each other on the holder side.

### Claim 2 (depends on 1)

The device according to claim 1, wherein the stator windings of each side are each connected to a magnetically conductive plate.

### Claim 3 (depends on 1)

The device according to claim 1, wherein on the workpiece carrier there is at least one rolling bearing with an outer ring that interacts, in the held position, detachably with a fixing device of the holder directly by the outer ring or by a fastening element connected to the outer ring.

### Claim 4 (depends on 3)

The device according to claim 3, wherein the fixing device interacts magnetically with the outer ring or the fastening element.

### Claim 5 (depends on 4)

The device according to claim 4, wherein the fixing device has a magnetic field generating device which generates a magnetic field of variable intensity.

### Claim 6 (depends on 5)

The device according to claim 5, wherein the magnetic field generating device has a magnetic yoke including at least one permanent magnet held between two pole shoes and also at least one coil that is energizable and is wound about the magnetic yoke and induces a magnetic field that reinforces or lessens a magnetic field of the permanent magnet.

### Claim 7 (depends on 4)

The device according to claim 4, wherein the fixing device has a contact surface that forms a positive-locking contact on the outer ring or on the fastening element.

### Claim 8 (depends on 1)

The device according to claim 1, further comprising a position measuring device for determining an angle position of the workpiece carrier relative to the holder.

### Claim 9 (depends on 8)

The device according to claim 8, wherein the position measuring device has one or more measuring elements that is provided on the workpiece carrier and rotates with it, and also a measurement sensor provided on a sensor side for the contact-less detection of the measuring element or elements.