DIGITAL VACUUM WAX INJECTION SYSTEMDIGITAL VACUUM WAX INJECTOR DVWI

ANDADVANCED AUTO CLAMP AAC II

Digital Vacuum Wax Injector DVWI

Advanced Auto Clamp AAC II*Specifications are subject to change without notice.

*Photo is standard size clamp unit

SPECIFICATIONS

0.45 KVA (max.)0.40 - 0.70 MPa40 - 99.9 degrees C (103 - 210 degrees F)40 - 90.0 degrees C (103 - 193 degrees F)0 - 9.99 / 0 - 99.9 sec. (*1)0 - 99.9 / 0 - 600 sec (Control range by AAC II is 0 - 99.9 sec).0 - 99 hours (*2)Approx. 3 Kg+/- 0.2 degree centigrade (*3)450 (W) x 310 (D) x 450 (H) mmApprox. 15.5 Kg

ModelProduct appearance

Power supply

Power consumptionCompressed air supplyTemp. display rangeTemp. set rangeVAC time set rangeINJ time set range

Heater ON timerWax capacityAccuracy of nozzle temp.DimensionsWeight

80(W)x80(D)x40(H) mm80(W)x110(D)x35(H) mm(when special 110(D) mm plate is placed on mold top)157(W)x223(H) mm, extends only 150 mm from front of injectorApprox. 5 Kg

ModelProduct appearance

Clamp Unit

Controller Box

Power supplyPower consumptionCompressed air supplyPressure sensor display range

DimensionsWeight

(Standard Size Clamp Unit) (Large Clamp Unit)

Digital Vacuum Wax Injector DVW I

Advanced Auto Clamp AAC II

(*1) Vacuuming of the mold before injection ensures good filling for fine filigree and difficult designs.

(*2) This model has a 99-hour "Heater-ON timer" so you can start injection work at a specific time. It will improve electricity cost and will increase efficiency.

(*3) Wax tank temperature and nozzle temperature are individually controlled so that accurate inject ion temperature is obtained.

Set r

ange

Range of controllingDVWI settingMemory numberCLAMP count

VAC timeINJ time

(Controller Box) (Controller Box)

Max. rubber mold size

Dimensions

Weight

230 V, 50/60 Hz, single phase

DVWI 115V

AAC II AAC II w/large clamp

DVWI 230V

115 V, 50/60 Hz, single phase

125(W)x150(D)x50(H) mm

196(W)x223(H) mm, extends only 190 mm from front of injectorApprox. 8 Kg

160(W)x260(D)x145(H) mmApprox. 3 KgAC100 - 240V, 50/60Hz, single phase 0.05 KVA (max.)0.25 MPa-5 - +240 kPa10 - 220 kPa

10 - 220 kPa

0 - 99.9 sec.30 - 235 kPa65 - 235 kPa0 - 300 sec.0 - 99.9 sec.0 - 99.9 sec.0 to 99999 counts

PRESS 1 (primary pressurization)PRESS 2(secondary pressurization)TIME of starting press 2Mold CLAMPMold FORWARDMold HOLD time

E-14 0905

WAX LEVEL DISPLAY

Wax level in tank is displayed with 1 %accuracy by pressing and keys.

: Increase

: Decrease

Improvement from Conventional Wax Production

COST-REDUCTION of wax production is a must. Conventional wax production needed a lot of manual work, so it took time to retouch wax patterns. By the new DVWI and AAC II system, you can speedily set parameters appropriate to individual rubber mold so defect ratio can be much decreased and productivity will be increased.

AAC II's Easy Operability and Accuracy by Memory

Productivity

Wax Defect

Retouch Work

Shrinkage

Fins

Filling Defect

Thickness Uniformity

Injection Pressure 1

Injection Pressure 2

TIME

Accuracy of Setting

Parameter Set Time 10,000Combinations

Wax Weight Accuracy

AC

Advan

ced

(Former System)

(Advanced New System)

- Memory- More Accurate- Higher repeatability

- No retouch work- Increase productivity

PC

Here is a way to a big profit.

Wax Shrinkage Reduced by "Multiple-Injection"

In the case of the conventional Auto Clamp, it was necessary to set Injection, Clamp, Forward pressure and Hold time manually at each injection. It was hard to set the four kinds of parameters precisely in a short time, so the parameter setting was not changed often enough. Therefore it was the cause of producing defective wax patterns and fluctuation of wax weight. With the AAC II, 10,000 combinations of injection parameters can be set into memory by inputting single digit of memory numbers for each Press 1, Press 2, Time (of starting Press 2), Clamp, Forward and Hold. It becomes possible to inject into thousands of different rubber molds with repeatability.

Just place a mold on the clamp unit of the AAC II, input digits, and press the START button, then the workcycle (clamp, forward the mold to the nozzle, receive wax, hold it until wax gets hard, and unclamp) will be done automatically.

10 different parameters of PRESS 1, PRESS 2, TIME of starting press 2, CLAMP, FORWARD, HOLD time can be stored. From 10,000 combinations of wax shooting, you can choose the optimum combination easily.

Wax shrinkage is a major problem causing considerable metal loss and changes in shape of the object when polishing is complete. The solution is newly developed two-time injection system that minimizes the wax shrinkage.

CLAMP

HOLD

FORWARD

AAC II

(AAC II Controller)

1st

Press

2nd

Press

Shrinkage

Reduce

Shrinkage

BAD

GOOD

In a short time after the first injection, a surface layer is solidified (formation of balloon layer).

After a specified interval, the second injection is made to expand the balloon layer to the extent that matches the shrinkage.

This injection pressure is kept for a time enough to solidify the wax so that a required and correct shape of wax is assured.

The rubber mold is always aligned with the injection nozzle of the wax injector by the 'Lateral Flexibility Mechanism' of the AAC II.

AAC II's Lateral Flexibility Mechanism