TS5000-user-guide.pdf - 第4页

4 Figure 2.0 Valve with 6.0-W att Motor 2. UNPACKING AND INSPECTION Carefully unpack the valve and examine the items contained in the carton . These will inclu de: • Valve Assembly • Valve bracket • Sample syringe kit • …

17. Visually inspect the valve body to any foreign material and repeat

cleaning process if necessary.

18. Insert a 0.1255” pin gauge into the valve body from the motor side.

If the pin moves smoothly and easily through the valve body, there

are no detrimental deposits in the valve. If the pin stop or snags,

gently push the pin through the hole to remove any deposits. If the

pin still does not want to move, please return the valve for repair.

19. Insert a 0.1262” pin gauge to into valve body from the motor side. If

the pin goes through the hole, please return the valve for repair.

9.3 Valve re-assembly

1. Reinstall the female luer lock fitting (10) into the valve body. Make

sure to apply some thread sealant on the fitting, such as Loctite 222.

2. Place the O-ring (8) on the clean out screw (9) and reinstall the clean

out screw assembly into the 45

feed shaft.

3. Lubricate the O-ring (3) with appropriate O-ring grease such as

Parker O-Lube.

4. Install O-ring (3) to the feed screw.

5. Gently slide the motor/feed screw assembly into the valve body

CAUTION: The fit between the feed screw and the chamber is very precise.

Extreme care must be taken during this operation.

6. Reinstall the two socket head screws (6) into the valve body.

Alternately tighten the screws a little at a time until both are secure.

Do not over tighten as this may distort the mounting plate and miss-

align the feed screw.

1. SPECIFICATIONS

Motor options: 2.7-Watt, 6-Watt, 6-Watt with digital encoder

Speed options: 125, 250, 400 RPM

Feed screw size options: 8-pitch standard

8-pitch high output

16-pitch standard

16-pitch shallow

Feed screw material options: Stainless steel

Delrin

Carbide

Feed screw chamber options: Stainless steel

Delrin

Valve body options: Anodized aluminum

Delrin

O-ring options: Viton, EPR

Figure 1.0 Valve with 2.7 Watt Motor

VALVE

TS5000

3.98" (101.0mm)

24" (610mm) LONG CALBE

FLUID INLET

.62" (15.7mm)

.52" (13.2mm)

.34" (8.6mm)

1.12" (28.5mm)1.00" (25.3mm)

2.13" (54.0mm)

2.58" (65.5mm)

1.01" (25.7mm)

.90" (22.9mm)

1.64" (41.7mm)

Figure 2.0 Valve with 6.0-Watt Motor

2. UNPACKING AND INSPECTION

Carefully unpack the valve and examine the items contained in the carton.

These will include:

• Valve Assembly

• Valve bracket

• Sample syringe kit

• Sample Needle Kit

• Cleaning kit

• User guide

3. DESCRIPTION

The TS5000 is a self contained fluid dispensing valve capable of depositing

shots down to 0.008” (0.200mm) in diameter at rates of 5 shots per second.

Fluid can also be accurately dispensed in continuous beads in widths from

0.008” (0.200mm) at rates up to 4” per second. In both cases, dot or bead,

accurate and repeatable dispensing can be accomplished in production by

following the instructions in this manual.

VALVE

TS5000

.90" (22.9mm)

3.94" (100.0mm)

5.48" (139.2mm)

.34" (8.6mm)

.52" (13.2mm)

.62" (15.7mm) 1.12" (28.5mm)1.00" (25.3mm)

1.97" (50.0mm)

2.45" (62.2mm)

1.09" (27.7mm)

24" (610mm) LONG CALBE

FLUID INLET

assembly. (Make sure not to tilt the motor during this process.) Turn

the motor off. If the motor/feed screw assembly still cannot easily be

removed, return the valve for repair.

8. Disconnect the motor cable (1) from the controller.

9. The entire feed screw (4) can now be cleaned with a solvent. Use the

brush included the cleaning for this process. Rho-Chem 7642 or a

similar solvent can be used.

CAUTION:

• Do not drop, or exert any forces on the feed screw. This will cause

permanent deflection in the alignment of the feed screw to the

motor shaft

• Do not remove the feed screw from the motor shaft during cleaning.

Doing so will cause misalignment between feed screw and motor

shaft

• Do not submerge motor in solvent

10. Visually inspect the feed screw as closely as possible and make sure

the feed screw is free of all foreign material. Repeat cleaning

operation if necessary

11. Remove the clean out screw (9) and O-ring (8) from valve body (5)

CAUTION: Do not remove the male luer lock fitting and locking hub (12) from the

valve body (5). This is a precisely aligned part. Removal of this part will damage

the valve permanently.

12. Using the brush provided, clean the feed screw chamber with solvent.

13. Using a micrometer to measure the major diameter of the feed screw

threads. If the diameter is measure less than 0.1240”, return the valve

for feed screw replacement.

14. Replace the O-ring (3) on the feed screw (Part number TSD1400-

010B)

15. Using the brush provided, clean the valve body with solvent.

16. Use dry air pressure to blow out passageways.

Note: Solvent can be used for purging instead of conditioner. If a solvent if

used, remember to reduce air pressure. Also check the chemical compatibility

chart to determine if solvent used will not affect the Viton O-ring on the feed

screw.

9.2 Thorough Cleaning:

A more through cleaning procedure should be done whenever the following

occur:

• Dispense fluid is changed to different type.

• Dispense fluid started to cure in the valve

• Valve has been dispensing for one month.

• Dispense tip clogged frequently.

Tool required: Open-end wrench, 3/32 hex wrench (included in valve cleaning

kit, part number: 5000-000-013)

1. Follow steps 1-7 in “Valve Purging” section.

2. Remove barrel of conditioner (11) from the valve assembly.

3. Disconnect the motor cable (1) from the controller.

4. Using a 3/32 hex wrench to unscrew the two socket head screws (6)

from the valve assembly.

5. Grasp the motor assembly (2) as close to the valve body (5) as

possible. (Pulling on the motor assembly near the cable and may

result in separation on the motor from the gear head.) Gently pull

straight up on the motor assembly. The motor/feed screw assembly

should pull out of the valve body. Do not pry on the motor if the

motor assembly does not withdraw easily. If the motor/feed screw

assembly has been removed from the valve, go to step 10, otherwise

continue to step 7.

6. Reattach control cable (1) to the controller, taking care to properly

attach with correct polarity. (Feed screw should rotate

counterclockwise when viewed from the dispense tip.)

7. Grasp the motor near the valve body to keep the motor from rotating.

With the motor running, pull straight up on the motor/feed screw

The amount of fluid dispensed will be determined by the following parameter:

• DV Voltage input

• Motor assembly selections

• Feed screw pitch

4. THEORY OF OPERATION

The TS5000 Rotary Microvalve dispenses fluid with a positive displacement

action using a rotary feed screw principle. Fluid in held in a feed reservoir (1)

under a positive head of air, between 1 to 20 psi, depending upon the viscosity

of the fluid. This positive air pressure, supplied by the air line (7), forces the

fluid out of the barrel (1) into the vertical feed shaft of the valve body (2), and

then through the angled feed shaft (3), to the feed screw chamber (4). Fluid

flows from this point (4) to the dispense point (5) is controlled by the feed

screw rotation in the feed direction. The feed screw is driven by the DC motor

(6). Applying a DC voltage signal to the DC motor (6), will rotate the feed

screw and the fluid will be forced out the dispense tip. The actual fluid

deposited is dependent upon adhesion of the dispensed fluid to the substrate.

Shearing of the fluid is achieved by reverse Z-motion (tip retraction). When

the motor stops, the unit remains in position for a fraction of a second (dwell)

to allow the last drop of fluid to flow out of the dispense tip. After the dwell

period, the automation equipment moves the TS5000 valve to the next position.

Figure 3.0

MICROVALVE

TS5000

Motor Assembly

Dispense Tip

Fluid Reservoir

Vertical Feed

Shaft

45° Feed Shaft

Locking Hub

Feed Screw

Chamber

Reservoir

Air Line