Method and system for repositioning of a flexible substrate

• US 8,714,609 B2
• Filed: 06/13/2011
• Issued: 05/06/2014
• Est. Priority Date: 06/22/2010
• Status: Expired due to Fees

• Current Assignee: JLS Automation, Co.
• Original Assignee: J L Souser & Associates Incorporated
• Inventors: Sydorko, Christopher M., Hafner, Craig
• Primary Examiner(s): KRAMER, DEAN J
• Application Number:
  US13/639,601
• Publication Number:
  US 20130026775A1
• Time in Patent Office: 1,058 Days
• Field of Search: 294/64.3, 294/185, 901/40, 414/752.1
• US Class Current: 294/64.3
• CPC Class Codes: B25B 11/007 portable, e.g. handheld
• CPC Class Codes: B25J 15/0616 with vacuum
• CPC Class Codes: B65G 47/91 incorporating pneumatic, e.g. suction, grippers
• CPC Class Codes: B65H 2406/365 selectively blowing or sucking
• CPC Class Codes: B65H 2406/3661 Injectors
• CPC Class Codes: B65H 3/0883 Construction of suction grippers or their holding devices
• CPC Class Codes: B66C 1/0212 Circular shape
• CPC Class Codes: B66C 1/0231 Special lip configurations
• CPC Class Codes: B66C 1/0268 Venturi effect
• CPC Class Codes: H01L 21/6838 with gripping and holding devices using a vacuum; Bernoulli devices

Abstract

A material handling system includes a body including a first member and a second member. The first member and the second member define a hollow cavity within the body, and a gap disposed between the first member and the second member. The body is in flow communication with a first gas source to provide pressurized gas flow through the gap to generate a lifting force on an object placed adjacent to the body. The body has channels disposed within a central region of the body in flow communication with a second gas source. The channels are arranged to controllably disengage the object from the body.

Claims

1. A material handling system, comprising:

a body comprising a first member and a second member, the first member and second member defining a hollow cavity within the body, and a gap disposed between the first member and the second member;

the body in flow communication with a first gas source to provide a first pressurized gas flow through the gap to generate a lifting force on an object placed adjacent the body;

at least one channel disposed in a central region of the body, the at least one channel in flow communication with a second gas source, the channel arranged to controllably disengage the object with a second pressurized gas flow from the second gas source;

wherein the second pressurized gas flow from the second gas source applies a downward force against the object in at least the central region, the downward force, in combination with gravity, being greater than an adhering force of the object with the body;

wherein the lifting force lifts the object towards the central region of the body wherein contact between the object and the body occurs on a periphery of the central region, the central region defined by at least one protrusion defining the periphery of the central region; and

wherein the at least one protrusion extends outwardly from the central region of the body to form a most distal portion of the body.

2. The system of claim 1, wherein the first pressurized gas flow from the first gas source passes between the first gas source, the cavity and the gap for creating a differential pressure that generates the lifting force.

3. The system of claim 1, wherein the first gas source and the second gas source operate mutually exclusively.

4. The system of claim 1, wherein the body is arranged for directing a Bernoulli flow in a radially outward direction to create a differential pressure that generates the lifting force between the body and the object.

5. The system of claim 1, wherein the body is characterized by a generally circular disc-like shape.

6. The system of claim 1, wherein the body depends from a positioning apparatus, the positioning apparatus providing selective movement of the object.

7. The system of claim 6, wherein the positioning apparatus further comprises a conduit for the first pressurized gas flow.

8. The system of claim 7, the positioning apparatus further comprising a connector fitting for attaching an air hose to the second gas source.

9. The system of claim 6, wherein the body is secured by a hinge to the positioning apparatus, the hinge arranged to maintain the body or the object at a substantially level orientation.

10. The system of claim 6, wherein the positioning apparatus further includes a manifold in flow communication with the first gas source and the body, and the differential pressure is generated or maintained by pressurizing gas from the first gas source in the manifold.

11. The system of claim 1, wherein the at least one protrusion comprises a continuous wall approximately centered on a lower member.

12. The system of claim 1, wherein the at least one protrusion comprises a substantially circular ring within the central region.

13. The system of claim 1, wherein the second pressurized gas source comprises a pressure greater than a pressure of a Bernoulli flow.

14. The system of claim 1, wherein the at least one channel comprises a plurality of holes positioned within the central region defined by the protrusion.

15. A method, comprising:

providing a body attachable to a robotic arm;

connecting the body to a first gas source;

introducing gas from the first gas source through a Bernoulli flow passage in the body;

creating a differential pressure to lift an object into contact with a periphery of a central region of the body;

connecting a second gas source to a plurality of channels;

introducing gas from the second gas source into the plurality of channels;

directing a flow through the channels to the central region of the body;

applying a substantially downward force to the object; and

disengaging the object from contact with the periphery of the central region of the body;

wherein the periphery of the central region is defined by at least one protrusion extending outwardly from the central region of the body to form a most distal portion of the body.

16. An article, comprising:

a body attachable to a robotic arm, the body comprising a first member and a second member, the first member and second member defining a hollow cavity within the body, and a gap disposed between the first member and the second member;

the body in flow communication with a first gas source to provide a first pressurized gas flow through the gap to generate a lifting force on an object placed adjacent the body;

a central region of the body;

at least one protrusion defining a periphery of the central region, the at least one protrusion extending outwardly from the central region of the body to form a most distal portion of the body on which contact occurs between the object and the body; and

at least one channel disposed in the central region of the body, the at least one channel in flow communication with a second gas source, the channel arranged to controllably disengage the object with a second pressurized gas flow from the second gas source;

wherein the second pressurized gas flow from the second gas source applies a downward force against the object in at least the central region, the downward force, in combination with gravity, being greater than an adhering force of the object with the body.

17. The article of claim 16, wherein the pressurized gas flow through the gap generates a Bernoulli effect in the gap to lift the object.