Systems and methods for implementing advanced vacuum belt transport systems

Patent metadata

Field	Value
Publication number	US-9346641-B2
Application number	US-201414446353-A
Country	US
Kind code	B2
Filing date	Jul 30, 2014
Priority date	Jul 30, 2014
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A system and method are provided for implementing more consistent vacuum belt transport movement for the transport of image receiving media in image forming devices, and for the transport of packages and components for processing and storage in myriad transport belt systems employing vacuum plenums to support and secure the materials being transported on the vacuum belts. A high-velocity stream of forced air is provided in a plenum positioned between the vacuum belt and the underlying structural components to create an area of low pressure to hold the media to the opposite side of the vacuum belt. The high-velocity air layer not only creates a pressure differential to support the vacuum pressure, but also provides an air bearing below the vacuum belt between the vacuum belt and the underlying structural components to allow the vacuum belt to move easily over the underlying structural components.

First claim

I claim:

1. A system for transporting components, comprising:
a perforated belt having a first side on which components are transported and a second side opposite the first side;
a plurality of rollers about which the perforated belt is threaded for operation, the plurality of rollers contacting the second side of the perforated belt; and
an air movement device that is configured to move a stream of forced air in a direction along and substantially parallel to the second side of the perforated belt, the air movement device creating a substantially laminar flow of air in a space that faces the second side of the perforated belt;
wherein at least one of the plurality of rollers operating to drive the perforated belt to transport components on the perforated belt in a transport direction;
wherein the air movement device being configured to direct the stream of forced air along the second side of the perforated belt in a direction substantially opposite to the transport direction of the perforated belt.

2. The system of claim 1 , the movement of the stream of forced air along and substantially parallel to the second side of the perforated belt creating a pressure differential through the perforations for holding transported components on the first side of the perforated belt.

3. The system of claim 1 , the stream of forced air creating an air bearing between the second side of the perforated belt and fixed structural components over which the perforated belt moves in operation.

4. The system of claim 1 , wherein the air movement device being configured to direct the stream of forced air along the second side of the belt at an oblique angle with respect to the transport direction of the perforated belt.

5. The system of claim 1 , the air movement device comprising at least one air supplying unit and at least one air directing manifold associated with the at least one air supplying unit.

6. The system of claim 5 , the air movement device further comprising at least one air exhaust unit.

7. An image forming device, comprising:
an image receiving media supply component;
a media marking unit for producing images on an image receiving media substrate; and
an image receiving media transport system for transporting individual image receiving media substrates in a transport direction from the image receiving media supply component past the media marking unit for images to be produced thereon, the image receiving media transport system, comprising:
a perforated belt having a first side on which the individual image receiving media substrates are transported and a second side opposite the first side;
a plurality of rollers about which the perforated belt is threaded for operation, the plurality of rollers contacting the second side of the perforated belt; and
an air movement device that is configured to move a stream of forced air in a direction along and substantially parallel to the second side of the perforated belt, the air movement device creating a substantially laminar flow of air in a space that faces the second side of the perforated belt;

wherein the air movement device being configured to direct the stream of forced air along the second side of the perforated belt in a direction substantially opposite to the transport direction of the perforated belt.

8. The image forming device of claim 7 , the movement of the stream of forced air along and substantially parallel to the second side of the perforated belt creating a pressure differential through the perforations for holding the individual image receiving media substrates on the first side of the perforated belt.

9. The image forming device of claim 7 , the stream of forced air creating an air bearing between the second side of the perforated belt and fixed structural components in the image forming device and the air movement device over which the perforated belt moves in operation.

10. The image forming device of claim 7 , wherein at least of one of the plurality of rollers operating to drive the perforated belt to transport the individual image receiving media substrates on the perforated belt in the transport direction.

11. The image forming device of claim 7 , the air movement device being configured to direct the stream of forced air along the second side of the belt at an oblique angle with respect to the transport direction of the perforated belt.

12. The image forming device of claim 7 , the air movement device comprising at least one air supplying unit and at least one air directing manifold associated with the at least one air supplying unit.

13. The image forming device of claim 12 , the air movement device further comprising at least one air exhaust unit.

14. A method for transporting components, comprising:
providing a perforated belt having a first side on which components are transported and a second side opposite the first side, the perforated belt being threaded around a plurality of rollers for operation, the plurality of rollers contacting the second side of the perforated belt; and
moving a stream of forced air in a direction along and substantially parallel to the second side of the perforated belt using an air movement device that creates a substantially laminar flow of air in a space that faces the second side of the perforated belt;
driving at least one of the plurality of rollers to, in turn, drive the perforated belt to transport components on the perforated belt in a transport direction;
directing the stream of forced air along the second side of the perforated belt in a direction substantially opposite to the transport direction of the perforated belt.

15. The method of claim 14 , further comprising creating a pressure differential through perforations in the perforated belt with the movement of the stream of forced air along and substantially parallel to the second side of the perforated belt, the pressure differential holding transported components on the first side of the perforated belt.

16. The method of claim 14 , further comprising creating an air bearing between the second side of the perforated belt and fixed structural components over which the perforated belt moves in operation with the stream of forced air.

17. The method of claim 14 , further comprising directing the stream of forced air along the second side of the belt at an oblique angle with respect to the transport direction of the perforated belt.

Assignees

• Xerox Corp

Inventors

• Herrmann Douglas K

Classifications

• B41J11/007

  Conveyor belts or like feeding devices · CPC title

• B65H5/224 Primary

  by suction belts (B65H11/005 takes precedence) · CPC title

• B41J11/0085

  Using suction for maintaining printing material flat (on rotatable drums B41J13/226) · CPC title

• B65H2406/362

  adjusting or controlling distribution of vacuum transversally to the transport direction, e.g. according to the width of material · CPC title

• B65H2406/364

  simultaneously blowing and sucking · CPC title