Z6 push locks from STRACK!

PREVENTS THE SECOND PARTING PLANE TO BE OPENED TOO EARLY!

- Z6 push lock is an addition to the Z4 latch locks.

- Safe function. It is used ensure that the mould tool's main parting plane is opened first. Only after opening the main parting plane, e.g. using a Z4 latch lock (with delay), can the second parting plane be opened.

- Easy mounting and adjusting. No milling work required on injection mould.

- Wide range of applications. With the Z6 lock, the already wide range of applications offered by the combination of different latch lock variants of the Z4 design has been extended yet again.




P R I N C I P L E   O F   O P E R A T I O N

When the main parting plane of the injection mould is opened, the closure or ejector side initially moves back by the specified opening travel (S1).

Until this opening movement (S1) has ended, the mould cannot open in the second parting plane, since it is locked by the positive connection between control plate, latch housing and catches.

As soon as the opening movement has been covered, the latches of the push lock are released and thus the locking of the second mould parting plane is eliminated. The catches are guided out of the cutouts in the control plate as soon as the limit stops of the latch bar bear against the catches of the actual lock.

Now the latch (Z4) draws the mould plate forward by the opening stroke (S2). When this opening movement has been completed the actuated mould plate is locked. The main parting plane can now be fully opened.


> Video clip of the function!
(7,0 Mt)

N O T E S   O N   M O U N T I N G   A N D   A S S E M B L I N G

- Mount the latch locks so that they are symmetrical, parallel and square to the mould guide.
- Secure all the screws with spring washers or Z 9092 adhesive.

Preparatory work
- Match the length of the control plate, control bar and spacer in accordance with the mould design and shorten if necessary. If the abovementioned components are to be shortened, the hardened layer on the side faces must first be ground down.
- Drill mounting holes in control palte, steady, control bar and spacer.
- Drill mounting holes for control plate, steady, control bar and spacer in the mould plate. The parallel dowel holes for the latch housing must be made in the mould plate at the same time.

Mounting and adjusting
- Mounting with mould assembled.
- Dowel and screw down latch housing. Check the position of the catches. Insert the edges, which are chucked at the sides, downwards into the latch housing.
- Insert the control bar (31) and screw on loosely. Adjust blocking travel (S) taking into account the specified dimension (S1), where S=S1 minus half catch width. Tighten control bar so that it is fixed parallel to the mould guide and secure with pins.
- Attach control plate (21) together with steady (4) and screw on loosely. Set the control plate to "no play" by placing against the catches. Tighten the screws to be fixed in place and secure with pins. Check correct functioning manually.

Mould safety device
- The catches of the push lock and of the latch lock, when closing the injection mould, must be protected against unacceptably high locking forces in the strokes (S1 and S2) by the mould safety device of the injection moulding machine.
- If there are mould slides with angle pins within the stroke range (S2), the mould safety device must respond even before the angle pins enter the mould slides.
- If the two mould halves are to be mounted separately, it is important to ensure that the drawn mould plate (H1V) is in the limit position of the fully drawn stroke (S1) and that the lock is active before the injection mould closes.