The Intoco die splitting machine is specifically designed to separate porthole dies and is customised to suit the extruder’s range of die dimensions. For example, the original machine was built to split dies with diameters of 203/230/265/320 and 380mm. The lengths varied between 100mm and 260mm.
To effect the splitting operation, the die is gripped at opposite ends by customised hydraulic chucks. Three radial wedges automatically penetrate die/mandrel interface and cause separation at the location register. If required, an additional axial force can be employed.
Built-in laser targeting is utilised to enable the roller wedges to identify and locate the die/mandrel interface. An automatic positioning device is incorporated to bring the varying diameters to the centre-line of the machine.
The machine combines both hydraulic and pneumatic sequences and is semi-automatic in operation. A reverse sequence of operations may be utilised for assembly of mandrels and die-plates.
The machine is housed within a robust, fabricated, steel base frame which can be floor mounted. Die assemblies are held at the machine centre-line by two hydraulically operated chucks; one static, at the operator end of the machine; and one, powered both forward and rearward, attached to a sliding sleeve.
The centre of the machine is occupied by a sliding crosshead, hydraulically powered forward and rearward, and carries a central frame containing three radial-acting hydraulic cylinders, with hardened wheels at their inner ends.
Pneumatic cylinders are embodied in the central sliding sleeve to push the die assembly into initial engagement with the static chuck. A pneumatic cylinder and roller beam is fitted to provide location of all sizes of die on centre-line, in conjunction with a stop tube giving pre-set stop positions.
The hydraulic power pack and pneumatic feed panel are located at the rear of the machine, housed within a fixed tunnel guard with hinged doors for service access.
The electrical and PLC systems are housed in cabinets within the tunnel guard profile, accessed from the side of the machine. The total working area of the machine is covered by a sliding tunnel guard which can be opened for access when loading/unloading.
The machine is safety interlocked under these conditions. A small push button station, local to the static chuck, gives the operator total control of the machine movements.
Hydraulic power pack, self-contained, giving
hydraulic operations at both 80 bar and 210 bar pressure levels.
Tank capacity 400 litre
Electric motor 15Kw
Max. pump output 80LPM
Auto-cyclic operation with operator interrupt for
location of penetration wheels
Manual operation for testing/setting
Solenoid voltage 110v. a.c.