SPACERS FOR AIR–JET VALVE/SPRING PINS & DOWEL PINS
AIR–JET VALVES
Spacers for Air–jet Valve
AJVS
AJVE (Steel type) AJV (Stainless Steel type)
3 ℓ ℓ 2
S
① ②
B
① ② ③ ④
⑤
＋ 0.2 0
＋ 0.2 0
d
L
0 － 0.1
H
⑥
M Material S45C
⑤ ⑦
⑥ ③ ④
E
⑦
0 － 0.05
（ L －ℓ 1 ）
ℓ
A
1
Part Number
Part Number – L AJVS 10 – 53
L 1mm increments
－ 0.01 － 0.03
＋ 0.05 0
d H
D
L
Order
Type
No.
10 13 16 20 25 32
8.5 15 10.5 18 10.5 21
Quotation
Delivery
AJVS
10–100
Components
AJVE
AJV
Ejection force N {kgf}
Spring pressure N {kgf}
Component name
No.
13 16 25
25 32 40
D
①
⑤
m Material
H Hardness
M Material
H Hardness
① Socket head cap screw ② Spring Washers
10 13 16 20 25 32
9.61 {0.98}
4.81 {0.49} 8.34 {0.85} 12.26 {1.25} 19.61 {2.00} 32.36 {3.30} 63.74 {6.50}
M 3–L 6 M 4–L 8 M 5–L10 M 6–L12 M 8–L15 M10–L20
MSW3 MSW3 MSW4 MSW4 MSW5 MSW6
SCM435
38–43HRC
SUS304
–
16.67 {1.70}
SWRH62
42–50HRC
SUS304 SUS304 SUS304 SCM435 S–STAR S–STAR
– – –
24.51 {2.50} 38.25 {3.90} 64.72 {6.60}
③ Plain washer
SK5
– –
• By making a unit with the air–jet valve, you can avoid major machining work no more than a simple boring process on the mold plane will be required.
④ Spring
Part Number – L – (KC/JC) AJVS 16 – 85 – KC
Example
Alterations
SUS304 SCM435
⑤ Screw Plugs ⑥ Cylinder tube
34–43HRC 33–38HRC 33–38HRC
34–43HRC
124.54 {12.70}
S45C S45C
34HRC 34HRC
{kgf} = N × 0.101972
Alterations Code
Spec.
⑦
Piston rod
E The screw plug ⑤ is used to fix the piston rod ⑦ when assembling/disassembling the air–jet valve. Before mounting the air–jet valve on a mold, make sure to loosen the screw plug and check the piston rod movement. E Periodically tighten the bolt ① in order to prevent the piston rod ⑦ from coming loose. E Shown here are reference values of ejection force when the air pressure is 49N/cm 2 {500kPa}. (The spring pressure is not considered) E When using the air–jet value, set the air pressure at 49N/cm 2 {500kPa} or higher. If high pressure air is used, the rod may not return properly.
Adds a key flat on the spacer.
Opening the valve with air allows: 1. Vacuum breaking 2. Air blowing 3. Preliminary ejection
KC
3
L
Adds a cylinder tube on the spacer connecting slot.
Part Number
L
S E ℓ 1
ℓ 2
ℓ 3
d 1
d 2
H B A
AJVE (Selection)
AJV 1mm increments
Type
D
JC
3
10 20 25 30 35 13 25 30 35 40
19–35 25–40 28–50 36–60 44–70
1.5 7 12 10.5 8.5 8.5 6.5 15 1.5 8 15 14 11 10.5 8.518 2.5 10 15 16 12 12.5 10.5 21
3 7.5
L
4
9
AJVE (Steel type) AJV (Stainless Steel type)
AJV Spacer (AJVS)
16 30 40 50 20 40 50 60 25 50 60 70
4 11 6 14 6 18 8 25
3.0 12 20 21 15 16 13 3.0 12 20 26 18 19 16
25 32 40
Spring pin
Dowel pin
5.0 15 25 35 20 25 22 55–80 E Highly fluid resin easily enters the gap around the ⑦ piston rod, so we recommend the stainless steel type, which has excellent wear resistance and corrosion resistance. 32 70 80
Part Number – L AJVE 20 – 60 AJV 20 – 38
WSP (Spring Pins chamfered both ends W type)
MS
Quotation
Order
Delivery
G
0.8
15 °
Part Number – L (LC)
– (KC/JC/AC)
Example
Alterations
D
D
0 ＋ 0.5
AJVE 20 – LC58 – KC
1
3
L
L
D
2
Quotation
M Material SUJ2 H Hardness 58HRC–
E Thrust out the molded product using air pressure.
M Material SUS402J2
Air
Alterations Code
Spec.
E The detailed specifications of dowel pins MS D P.1115.
D Part Number min. max. Type D
t (Reference)
Emax. ＊ kN {kgf}
L
E Use these valves for thrusting out deep–molded products, when problems are likely to occur if the marks of the ejector pin remain on the product, and so on.
KC
3
2 3
1.9 2.76 { 281} 2.9 6.20 { 633}
0.4 82.152.25 0.6 10 3.15 3.25 0.8 10 4.2 4.4
L ⑥ Adds a key flat on the cylinder tube.
WSP
3.9 10.80 {1130} 4 E The maximum value of D is the maximum value on the pin's circumference; its minimum value is the average of D 1 /D 2 /D 3 . Reference Value t is in accordance with JSMA No.6 (Standards of Japan Spring Manufacturers Association) ＊ The minimum load of double shearing (JIS B2808)
JC
3
L ⑥ Adds a spacer connecting slot onto the cylinder tube.
Part Number – L WSP 2 MS 3 – 15 Quotation
Enables the user to keep air blowing all the time.
Order
WSP/MS
Example
AC
↓
③ Adds a hole on the plain washer.
⑥ Total length alteration 1mm increments Lmin. ≦ LC ＜ L E Available for AJVE only
D
Lmin.
Delivery
10 13 16 20 25 32
19 25 28 36 44 55
• Recommended spring pins & dowel pins Head thickness of ejector pins in NC alteration
LC
LC
Ejector Pin
L
4mm 6/8mm 10mm
Spring pin (WSP) Dowel pin (MS)
WSP2 WSP3 WSP4 MS2 MS3 MS4
93
94
Powered by FlippingBook