03217917-01-01E By DEK Technical Reference Manual Vol 1_enPDFA.pdf - 第51页

5 MACHINE OVERVIEW 5.1 MODULE OVERVIEWS TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 51 5.1.5 Rising Table Module The rising table module provides a stable base for the board support tooling and positions the transp…

5 MACHINE OVERVIEW

5.1 MODULE OVERVIEWS

50 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019

5.1.2 Power Supply Module

The M37 power supply enclosure fulfils the following functions:

●

Transform and rectify the mains voltage supply to the voltages required by the electrical sys-

tems throughout the machine.

●

Electrical safety – achieved by the use of emergency stop safety circuits (E Stop). When an E

Stop is activated, power is removed from selected areas of the machine.

5.1.3 Printer Control Module

The M36 machine control enclosure is the central hub controlling machine motion. Machine control

also consists of I/O nodes throughout the machine connected to the machine control enclosure us-

ing a CAN Bus.

Machine control is an interface between the software and:

●

Stepper Motors

●

Servo Motors

●

Sensors

●

Switches

●

Solenoids

●

Lamps

5.1.4 Printer PC Module

The machine PC enclosure is the master controller of the machine. Issuing sequential control com-

mands to slave systems via the machine control enclosure, the PC analyses the feedback signals

and issues further commands to ensure the correct operation and safety of the machine.

1 Machine PC Enclosure 3 Machine Power Supply Enclosure

2 Machine Control Enclosure

5 MACHINE OVERVIEW

5.1 MODULE OVERVIEWS

TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019 51

5.1.5 Rising Table Module

The rising table module provides a stable base for the board support tooling and positions the

transport rails at various heights during the print cycle.

5.1.6 Board Support Tooling Module

The role of the board support tooling is to support the board during the print stroke, to prevent print

distortion caused by flexing of the board as a result of the downward pressure of the squeegees.

Several different types of board support tooling are available to suit a variety of surface mount pro-

cess requirements.

5.1.7 Transport Rails Module

The transport rails system is a programmable width conveyor system, utilized to transport the

board through the machine and to secure the board during the print stroke. The rail system height

is positioned by the rising table, during the print cycle.

1 Transport Rails Module 3 Board Support Tooling Module

2 Rising Table Module

5 MACHINE OVERVIEW

5.1 MODULE OVERVIEWS

52 TECHNICAL REFERENCE MANUAL Vol 1 E By DEK 04/2019

5.1.8 Camera System Module

The function of the camera system is to supply a visual indication of screen to board alignment and

board/screen inspection data to the machine PC enclosure. The captured information supplied to

the PC enclosure enables the processor to:

●

Align the screen to the product board

●

Provide visual information for the user on the MMI monitor

The camera assembly traverses horizontally in the X and Y axis and is driven by rotary servo mo-

tors.

The camera carriage is also used to transport the board stop and the understencil cleaner.