Mold Components

FRICTION PULLERS Friction Pullers

EJECTOR RETURN COUPLINGS Ejector Return Couplings – General Information Quick Action Ejector Return Couplings for Presses with Hydraulic Ejection Economical

DME Friction Pullers provide optimal parting line control. The Friction Puller controls plate movement by using friction at a specified setting to release the mold plate when the travel limit is achieved. Available in four sizes (10mm, 13mm, 16mm and 20mm), Friction Pullers may be used to consistently draw floating plates and inserts.

Universal • Can be put into existing molds to save time and money • Hydraulic return by means of fixed coupling • Pulsating ejection possible

• Shortens mold changeover times • Only one unit required per injection molding machine

FASTENER

Friction Puller Advantages

HEMISPHERE

Quick return coupling (incl. connecting plug)

Connecting plug

• Reference arrows enable easy adjustment • Self-locating even if plates shift due to thermal expansion or machining variances • Internal self-venting eliminates the need for additional machining • Fastener includes Nylok ® patch for secure installation

A

7 –> AR01 8 –> AR02

Ø11 Ø14

AR01 Ø38 AR02 Ø67

B

RESIN

AR01 Ø24 AR02 Ø42

Ø15 AR01 Ø30 AR02

E

Ø22.5 AR01 Ø40 AR02

Ø14.7 AR01 Ø29.5 AR02

Ø17.4 AR01 Ø29.4 AR02

Patents Pending

C

M12 (AR01) M16 (AR02)

D

L

REF

TYPE

AR01 RESP. 02 AR01 RESP. 02 P

QUICK RETURN COUPLING (INJECTION PRESS)

CONNECTING PLUG (MOLD)

H

O

Technical Data Material: Custom PPA Resin with 8620 fastener

D

Temperature: Maximum operating temperature - 300°F (150°C) Removal: Before removing mold from the press for maintenance, rotate Friction Puller screw counter-clockwise with a ¾ turn to enable easy plate separation

T

P

N

M

L

H

C

ITEM NUMBER

H HEX

MAXIMUM FORCE (EACH) 32.5 KG (72 LBS) 62.5 KG (138 LBS) 150.0 KG (330 LBS) 212.5 KG (468 LBS)

D

L

T

HOLE DEPTH

Thru Hole In

D

FP10D FP13D FP16D FP20D

10 13 16 20

17 20 25 28

M5-.8 M6-1

3 4 5 6

20 23 30 32

Q

Ejector Return Couplings – AR

Hole finish = mRa .4-.1

M8-1.25 M10-1.5

T

O +0.05 +0.02

REF

A

B

C ±0.02

D

E

M 23 42

N

P MIN.

Q MIN.

KN

D

NOTE: Dimensions are in millimeters (mm).

AR01 AR02

38 43

43 73

18 24

43.5 70.5

M16 M20

18 32

48 80

C

40

+1

7

+.10m +.15m Interfere Adjust on Frict Pulle

140

C +1

Thru Hole Installation

Blind Hole Installation

Installation 1. Move the ejector plate to the molding position (mold closed). 2. Move also the ejector cylinder rod to the fully retracted position. It is important to check by hand, that the rod is fully pushed back to the fully retracted position before measuring. 3. Measure the distance between the coupling and the ejector cylinder rod. 4. Extend the ejector cylinder rod with an extra knock-out rod of the measured length + 30mm for AR01 and 50mm for AR02.

5. Move the mold ejector plates to the forward position (mold open). 6. Lock both the extra knock-out rod and at the other end the quick coupling. 7. Move the mold ejector plates back to the mold closed position and make the coupling between ejector plate and ejector cylinder rod. Make sure that the ejector plate and ejector cylinder rod are both in the mold closed position as soon as the coupling is made. If not, adjust. Do not use with quick-change mold systems.

D

Receiving Hole Diameter

Parting Line

Hole finish = mRa .4-.16

Floating Plate or Insert

AR01-L+30MM AR02-L+50MM

D

10mm min

D

+.10mm +.15mm Interference Adjusted on Friction Puller

L

HD

2mm R

Parting Line

Parting Line

3mm

EJECTOR CYLINDER ROD

10mm min

Mold Closed

Mold Open

D

D

NOTE: R ecommended interference fit for Friction Pullers is .1 to .15mm larger than the receiving hole. To adjust, rotate the screw clockwise and measure bulge to achieve proper fit. Adjust further if necessary with ¼ turn increments, lining up the reference arrows on the fastener to the resin.

Mold Closed

Mold Open

179

178

■ ■ U.S. 800-626-6653 Canada 830807- 6600 dme@milacron.com ■ www.dme.net ■ store.dme.net

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