FlexTRAK 2MB Material Handler Addendum Rev 05.pdf - 第58页

FlexTRAK Series 2MB Mater ial Handler Adden dum System Compo nents 4-14 © 2023 Nordson Corporation 4.3.1.4 Lane Position Se nsors As a carrier enters the sys tem, multiple sensors monito r its position along the conveyor…

FlexTRAK Series 2MB Material Handler Addendum System Components

4.3.1.3 Fixed Position Dual-Lane Conveyor

In this configuration, Lane 1 is fixed to Lane 2, and there is no width adjustment by the actuator. Lane 1

and Lane 2 are a single fixed assembly, aligned, leveled, and secured at the factory (Figure 4-10). The

two-lane assembly position is not adjustable. It is typically used with adjustable dual lane conveyors

upstream/downstream where the lane spacing can be set equal to the 2MB conveyor.

Figure 4-10 Fixed Position Dual-Lane Conveyor

Table 4-3 Fixed Position Dual-Lane Conveyor Components (Front View)

Item Name Description

1 Lane 1 Lane position and lane width are both fixed at the factory

2 Lane 2 Lane position and lane width are both fixed at the factory.

Stepper

Motor

The stepper motors supply power to the belt assemblies. There are two stepper

motors per lane. Both motors are synchronized to operate together and drive the

carriers down the length of the conveyor.

Lane

Position

Sensors

The lane position sensors detect parts throughout the length of the conveyor. Five

sensors per lane ensure traceability of the carrier, see 4.3.1.4 Lane Position

Sensors.

5 Belts

High temperature belts move the parts through the system. There are two belts per

lane, see 4.3.1.7 High Temperature Belts.

Carrier

Stops

The pneumatic carrier stop prevents over travel of the part. There is one carrier stop

per lane, see 4.3.1.6 Carrier Stops.

FlexTRAK Series 2MB Material Handler Addendum System Components

4.3.1.4 Lane Position Sensors

As a carrier enters the system, multiple sensors monitor its position along the conveyor. The carrier

positions are displayed in the software as Detect 1-5, see 6.7.4 Manipulating the Lane 2 Conveyor. The

number of sensors for each Detect position is determined by the size of the carrier.

The conveyor will turn on when a board available signal is given by the upstream system and will operate

at the LOAD SPEED set point. If a lane sensor senses something out of sequence, the MH Alarm screen

will prompt an “Unexpected Boat on Lane” alarm, see 9.5 Material Handling Alarms.

Table 4-4 Typical Conveyor Carrier Sequence

Name Description Function

Detect 1 Carrier Entry The Detect 1 sensor activates when a carrier enters the conveyor.

Detect 2

Upstream

System Ready

When the trailing edge of the carrier clears Detect 1 and is sensed by

Detect 2, the SMEMA Upstream System Ready signal toggles and the

conveyor changes to the LOAD SPEED set point. This sensor must be

positioned so during a load in routine, the carrier can be sensed by at

least one of Detect 1, Detect 2, or Detect 3.

Detect 3

Initiate Load in

Time

When the leading edge of the carrier is sensed by Detect 3, it initiates the

LOAD IN TIME timer. The conveyor slows to the Jog speed after the

timer runs for the designated amount of time unless the leading edge of

the carrier is sensed by Detect 4 first. Detect 3 must be active when the

process carrier comes to a stop at the Gripper Pick Position in order for a

carrier to be picked up by the MH gripper assembly.

Detect 4 Stop Belt

This sensor stops the belt operation upon sensing the leading edge of a

carrier. Detect 4 must be active when the process carrier comes to a stop

at the Gripper Pick Position in order for a carrier to be picked up by the

MH gripper assembly.

Detect 5

Stop

Conveyer

When the leading edge of the carrier is sensed by Detect 5, the conveyor

ramps down to the UNLOAD SPEED. Detect 5 must remain off for the

designated amount of time specified in the BOAT OUT DELAY before the

timer can shut off and stop the conveyor. When Detect 5 does not sense

the trailing edge of a carrier for that amount of time, the SMEMA

Downstream Board Available signal toggles and the conveying process is

complete.

NOTE Load speed, lane speed, unload speed and timers are set in the FlexTRAK-2MB software,

see 6.7.4 Manipulating the Lane 2.

FlexTRAK Series 2MB Material Handler Addendum System Components

4.3.1.5 Separator Actuator

The separator has a home position inherently built into the actuator and teachable positions taught through

the FlexTRAK-2MB software, see 5.5.4 Conveyor Status Screen. The first position is called the Conveyor

Grip and the second is called Conveyance.

1. Conveyor Grip (Grip Pos.) - The Conveyor Grip position moves Lane 2 to a position where

the MH grippers can pick and place parts on and off of the conveyor. The lane space

position relates to the spacing of the gripper fingers as well as the spacing within the plasma

processing chamber where the carriers are to be placed for treatment. For the Fixed Position

Dual-Lane Conveyor system, the conveyor grip position is ignored.

2. Conveyance Position - The Conveyance position moves Lane 2 to a position where the parts

can be transferred to and from the upstream and downstream systems. This position is

taught during setup to ensure that the carrier can be conveyed through the system. It is a

relative position based on Lane 1 after the tool has been aligned with the upstream and

downstream systems. For the Adjustable Single-Unit Dual-Lane Conveyor system, the

single conveyance position is replaced by two conveyance positions--one for each lane. For

the Fixed Position Dual-Lane Conveyor system, the conveyance position is ignored.

4.3.1.6 Carrier Stops

There is one adjustable pneumatic carrier stop per lane. The stops can be adjusted using the flow

controllers located in the FlexTRAK-2MB’s rear enclosure (Figure 4-5). When the conveyor turns on,

both carrier stops engage, and the corresponding LED located on the MH Overview screen glows green.

The stops locate the carrier in a safe position to be picked up by the MH gripper assembly. When the

carrier reaches the Gripper Pick position, both the Detect 3 and Detect 4 sensors must be activated in

order for the carrier to be picked up.

4.3.1.7 High Temperature Belts

There are two high temperature belts per lane. Maximum temperature should not exceed 150 °C. A

qualified technician can adjust the tension periodically for continuous conveyor operation. Belts need to

be replaced periodically, see 8.4.4 Replacing the Conveyor Belts.

4.3.2 Shuttler Assembly

The shuttler assembly is a 4-axis pick and place system. The shuttler utilizes gripper assemblies to deliver

parts conveyed by the conveyor, to and from the plasma processing chamber for treatment.