MODULAR MATERIAL PROCESSING SYSTEM AND SAFETY INTERLOCK SCHEME AND METHOD OF OPERATION

• US 20070126795A1
• Filed: 11/08/2006
• Published: 06/07/2007
• Est. Priority Date: 11/23/2005
• Status: Abandoned Application

• Current Assignee: Datacard Corp. (Entrust Corp.)
• Original Assignee: Datacard Corp. (Entrust Corp.)
• Inventors: DORFE, Steven, HOKANSON, Richard
• Application Number:
  US11/557,660
• Publication Number:
  US 20070126795A1
• Time in Patent Office: Days
• US Class Current: 347/49
• CPC Class Codes: G05B 2219/24027 Circuit, independent from microprocessor, detects contact switch to allow power to actuator
• CPC Class Codes: G05B 2219/25325 Each connected module has own power supply
• CPC Class Codes: G05B 2219/25333 Modules on bus and direct connection between them for additional logic functions
• CPC Class Codes: G05B 2219/34461 Inhibit access to area if dangerous, cover taken off
• CPC Class Codes: H01H 3/161 for actuation by moving a closing member, e.g. door, cover or lid the switch controlling enclosed equipment H01H9/226; switches operated by a removable member, wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards H01H27/002
• CPC Class Codes: Y02P 80/40 Minimising material used in manufacturing processes

Abstract

A modular card production safety interlock system limits disruption of a modular card production system by limiting operational disturbances to a desired system module and only its neighboring system modules upon opening the hood of the desired system module.

Claims

1. An interlock system, comprising:

a protective cover associated with a material processing function module;

a power transmission device integral solely with the function module; and

a safety interlock circuit, wherein opening the protective cover disables the power transmission device to activate the safety interlock circuit causing the function module and solely adjacent function modules to stop processing material passing through the respective function modules.

2. The interlock system according to claim 1, wherein the safety interlock circuit comprises:

a module interlock circuit responsive to action of the protective cover;

an adjacent upstream module interlock circuit coupled to the module interlock circuit, wherein an adjacent upstream module protective cover must be closed such that the module interlock circuit will allow hazardous elements to be active within the module; and

a downstream module interlock circuit coupled to the module interlock circuit, wherein an adjacent downstream module protective cover must be closed such that the module interlock circuit will allow hazardous elements to be active within the module.

3. The interlock system according to claim 2, wherein all module interlock circuits are substantially identical, allowing modules to be connected in arbitrary order.

4. The interlock system according to claim 3, wherein the module interlock circuit coupling to adjacent modules is via electromechanical switches.

5. The interlock system according to claim 1, wherein the function module is selected from the group consisting of a magnetic encoding module, an embossing module, a smart card module, a chip programming module, a laser printing module, a perforating module, a cleaning module, a laminating of personalized documents module, a thermal module, an inkjet module, a retransfer printing module, an input module, an output module, a label module, a topper module, a buffer module, a booklet leafing module, and a booklet closing module.

6. An interlock system, comprising:

accessing means for controlling manual access into a material processing function module;

means for supplying power solely to the function module and at least one adjacent module; and

interlocking means for disabling the means for supplying power and causing the function module and solely any adjacent function modules to stop processing material passing through the respective function modules in response to the manual access into the function module via the accessing means.

7. The interlock system according to claim 6, wherein the accessing means comprises a module access cover.

8. The interlock system according to claim 6, wherein the means for supplying power comprises a motor driver circuit.

9. The interlock system according to claim 6, wherein the interlocking means comprises a plurality of interlock switches configured together to disable power to motor circuits associated with the function module and solely adjacent function modules in response to the manual access into the function module via the accessing means.

10. The interlock system according to claim 7, wherein the material processing function modules are selected from the group consisting of a magnetic encoding module, an embossing module, a smart card module, a chip programming module, a laser printing module, a perforating module, a cleaning module, a laminating of personalized documents module, a thermal module, an inkjet module, a retransfer printing module, an input module, an output module, a label module, a topper module, a buffer module, a booklet leafing module, and a booklet closing module.

11. A method of interlocking a plurality of modular material processing system function modules, the method comprising the steps of:

providing a modular material processing system having a plurality of function modules, wherein each module has an access cover, a plurality of interlock switches, and a power transmission device integrated therein; and

configuring the plurality of function modules such that opening a single module access cover operates to disable the respective module power transmission device and deactivate hazard related circuits associated with the respective module and solely any adjacent modules.

12. The method according to claim 11, wherein the function modules are selected from the group consisting of a magnetic encoding module, an embossing module, a smart card module, a chip programming module, a laser printing module, a perforating module, a cleaning module, a laminating of personalized documents module, a thermal module, an inkjet module, a retransfer printing module, an input module, an output module, a label module, a topper module, a buffer module, a booklet leafing module, and a booklet closing module.

13. A modular material processing system interlock system, comprising a plurality of material processing function modules, wherein each function module comprises:

an access cover;

a power transmission device; and

a plurality of interlock switches configured such that opening a function module access cover operates predetermined interlock switches to disable the module power transmission device and deactivate hazard related circuits associated with the module and solely any adjacent function modules.

14. The modular material processing system interlock system according to claim 13, wherein the power transmission device is selected from the group consisting of a motor drive circuit device, a laser device, a hazardous light device, a pneumatic device, a hydraulic device, a voltage controller device, a current controller device, and an ultraviolet light device.

15. The modular material processing system interlock system according to claim 13, wherein the access cover is a hood.

16. The modular material processing system interlock system according to claim 13, wherein at least one interlock switch comprises an electromechanical switch.

17. The modular material processing system interlock system according to claim 13, wherein at least one interlock switch comprises a mechanical switch.

18. The modular material processing system interlock system according to claim 14, wherein the function modules comprise at least one module selected from the group consisting of a magnetic encoding module, an embossing module, a smart card module, a chip programming module, a laser printing module, a perforating module, a cleaning module, a laminating of personalized documents module, a thermal module, an inkjet module, a retransfer printing module, an input module, an output module, a label module, a topper module, a buffer module, a booklet leafing module, and a booklet closing module.

19. The modular material processing system interlock system according to claim 13, wherein each function module further comprises a manual bypass mechanism configured to selectively override the disablement of the module power transmission device and the deactivation of the motor circuits associated with the module and solely any adjacent function modules.