Printer 710_810 v8 High Throughput Conveyor Module - 第2页

HIGH THROUG HPUT CONVEY OR (HTC) MOD ULE OVERVIEW 17.2 Technical Reference Manual Chapter Issue 3 Oct 06 The high t hroughput conv eyor is a programmable wi dth conv eyor system whi ch sets the rail wid th and trans port…

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HIGH THROUGHPUT CONVEYOR (HTC) MODULE
OVERVIEW
Chapter Issue 3 Oct 06 Technical Reference Manual 17.1
CHAPTER 17 HIGH THROUGHPUT CONVEYOR (HTC) MODULE
OVERVIEW
Item Description Item Description
1 M27 3 Stage Conveyor Controller 12 Print Station - Fixed Rail
2 Rear HTC Belt Motor Speed Controller 13 Board at Left Sensor
3 Front HTC Belt Motor Speed Controller 14 Print Station Transport Belt Motor (2 positions)
4 Auxiliary Conveyor Sensor (2 positions) 15 Rail Lifted Left Vane
5 Conveyor Board Stop (3 positions) 16 Rail Lifted Left Sensor
6 Auxiliary Conveyor Transport Belt Motor
(4 positions)
17 Moving Rail Drive Shaft (2 positions)
7 Auxiliary Conveyor (4 positions) 18 Moving Rail Stepper Motor
8 Board at Right Sensor 19 Print Station - Moving Rail
9 Rail Stop Bar (Clatter Bar - 2 positions) 20 Moving Rail Home Sensor
10 Rail Lifted Right Vane 21 Rail Lifted Right Sensor
11 Board Clamp (2 positions)
1
2
3
4
5
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9
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12
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15
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14
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17
NOTE
Support bracket shown
transparent to reveal
Items 2 and 3.
HIGH THROUGHPUT CONVEYOR (HTC) MODULE
OVERVIEW
17.2 Technical Reference Manual Chapter Issue 3 Oct 06
The high throughput conveyor is a programmable width conveyor system which
sets the rail width and transports boards through a machine using belts. The
system can accommodate up to three boards in a machine at one time, thereby
reducing the machine cycle time. The system can be configured to run either
from left to right or right to left.
The high throughput conveyor system transports the board from the upline
machine using belts from the upline auxiliary conveyor, into the print station of
the machine, where the board is positioned, clamped and printed. After printing
the board is transferred to the downline machine using belts from the downline
auxiliary conveyor. As the system can be configured to either run left to right or
right to left, each of the auxiliary conveyors are configurable to either run as
upline or downline conveyors, with respect to the print station.
There are four modes of operation, selectable on the M27, as follows:
• Single Stage Normal Mode
• Single Stage Fast Mode
• Three Stage Normal Mode
• Three Stage Fast Mode
NOTE
Large apertures in the product board can cause the sensors to activate/
deactivate. In the event of false triggering, select Normal Mode.
Single Stage
Normal Mode
In single stage normal mode the auxiliary rails and the print station rail are
configured as one rail. The rail system transports the board from the upline
machine, into the machine, where the board is positioned, clamped and printed.
After printing, the board is transferred to the downline machine. A signal to the
upline machine, to dispense another board, is sent when the leading edge of
the board switches the ‘board present’ sensor on the downline machine. If the
downline machine has a board at the sensor, the conveyor board stop activates
to prevent the board leaving the print station. In single stage normal mode, only
one board can be in the machine at any one time.
Single Stage Fast
Mode
In single stage fast mode the signal to the upline machine, to dispense another
board, is sent when the trailing edge of the printed board passes the board at
right sensor on the print station. In the event of the downline machine being
busy, the board is stopped at the end of the print station. In single stage fast
mode, two boards can be in the machine at the same time (one entering the
machine on the upline auxiliary conveyor as the printed board is exiting on the
downline auxiliary conveyor).
NOTE
If the downline transfer time is greater than the machine cycle time (displayed
on the machine MMI), single stage normal mode must be selected to prevent
two boards on the downline conveyor at the same time.
Three Stage
Normal Mode
In three stage normal mode the upline auxiliary conveyor transports Board 1 to
the print station conveyor where the board is processed. With Board 1 in print
position, Board 2 is dispensed from the upline machine. When Board 2 arrives
at the sensor, at the end of the upline auxiliary conveyor, the transport belts stop.
HIGH THROUGHPUT CONVEYOR (HTC) MODULE
OVERVIEW
Chapter Issue 3 Oct 06 Technical Reference Manual 17.3
After the print cycle, the Board 1 is transported to the downline auxiliary
conveyor. When the leading edge of the board activates the sensor, at the end
of the downline auxiliary conveyor, a signal is sent allowing Board 2 to enter the
print station and Board 3 to enter on the upline auxiliary conveyor.
Providing the downline machine is ready, the first board can leave the downline
auxiliary conveyor and the cycle be repeated. If the downline machine is busy,
the second board is printed and transported to the end of the print station
conveyor where it is held by the conveyor board stop.
Three Stage Fast
Mode
In three stage fast mode, the operation is the same as three stage normal mode
with one exception. The second board is transported on to the print station
when the trailing edge of the first board passes the board at right opto situated
at the end of the print station conveyor.
KEYENCE
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WARNING SHARP EDGE
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WARNING SHARP EDGE
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Print StationConveyor
Board Stop
Downline Conveyor
Board Stop
Upline Conveyor
Board Stop
Plan View of Board Positioning (Three Stage Mode)
Board Direction from Left to Right
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Board 2
WARNING SHARP EDGE
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WARNING SHARP EDGE
PATENT No 5157438
Print StationConveyor
Board Stop
Downline Conveyor
Board Stop
Upline Conveyor
Board Stop
Plan View of Board Positioning (Three Stage Mode)
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PATENT No 5157438
WARNING SHARP EDGE
PATENT No 5157438
Print Station Conveyor
Board Stop
Downline Conveyor
Board Stop
Upline Conveyor
Board Stop
Plan View of Board Positioning (Three Stage Mode)
Board 3
Board 2
Board 1
KEYENCE
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