Improve traceability of plastic parts
by automatic date stamp

Automatic date stamp

■Embedded in injection mold

●Date stamp is rotated automatically by air pressure.

●Automatic date stamp can mark serial number for all moldings.

[Specification]
Depth of engraving: 0.2 mm
Draft angle: 25 degrees
Amount of arrow moves up: 1.5 mm
Material: SUS420
Hardness: HRC 50-53
Maximum temperature of main body: 250℃
Maximum temperature of cylinder 150℃
Operating pressure: 0.5MPa- 0.6 MPa

Depth of engraving	0.2 mm
Draft angle	25 degree
Amount of arrow moves up	Less than 1.5 mm
Material	SUS420
Hardness	HRC 50-53
Maximum temperature of main body	250℃
Maximum temperature of cylinder	150℃
Operating pressure	0.5MPa ~ 0.6MPa

Part	Size(mm)	Tolerance
A	12	h7
B	8	m6
C	5	±0.02
D	60	±0.02
E	15	-
F	7.5	-
G	6.6	-
H	30.5	-

How to control

① Touch sensor detects opening of mold.
② Touch sensor sends signal to PLC.
③ PLC sends signal to solenoid valve to rotate automatic date stamp.

Application

Serial number for all moldings

Problem

Labelling serial number takes time and label may tear off over time.

The lot number "154697" is attached by hand.

Solution

Automatic date stamps mark serial number during injection process so no extra time needed for marking. Engraved marking leave semi permanent marking.

"154697" is marked automatically by date stamps.

Rotate date stamp easily

Problem

Date stamps are located on the mold where it is hard to rotate by hand.

Solution

You can rotate date stamp easily by air pressure.

Moldings for automotive parts

Semiconductor device

Semi-conductor
Power device

Application of
power device

Air pipe