Mold Base Technologies
Our Mold Technologies team supplies a wide range of mold
bases and mold accessories. From simple, strippable, closure
mold bases to complex 2- and 4-level stack systems, we offer
fully engineered and optimized mold base solutions featuring
mold technologies such as the patented Rotating Ratchet
Ring unscrewing system. With over 40 years of mold base
experience with expertise in high cavitation and stack systems for closure, medical, packaging and cutlery applications.
Each mold base includes:
• Precisely machined stainless steel plates
• Cooling channels sized for each application
• Balanced hydraulic and pneumatic functions for smooth
plate actuation
• Calculated insert stack compression to extend insert life
• Front-mounted cavity and core designs for easy maintenance
• All accessories, including lift bars, latches, water connection
kits and hardware
Each mold base is completely assembled and fully tested, making mold insert installation fast, simple and trouble-free.
PRODUCTS
Husky’s mold technology is built upon years of design
experience paired with new product innovation.
Husky offers many technologies to increase cavitation,
reduce cycle times and produce better molded parts.
STACK MOLD BASES
We have pioneered stack technologies since the 1970s. Our
stack mold bases feature balanced hot runners, robust linkage systems and rugged mold supports. Mold base plate
actuation can be controlled through compact pneumatic or
hydraulic systems and/or rocker arms in order to meet part
ejection requirements. Husky’s stack mold bases substantially increase output while maintaining cycle times and part
quality. In addition to conventional 2-level stack mold bases,
Husky also offers the following stack technologies:
Stack platens convert similar individual molds into a single-stack mold.
Four-Level Stack Mold Bases — four-level stack molds virtually
quadruple the output of an injection molding machine, with
minimal increase in clamp tonnage relative to a single-face
mold. Husky’s 4-level systems utilize dual sprue bars controlling melt flow to both hot runners as well as a primary and
secondary harmonic linkage system for advanced mold opening. Four-level systems are effective for parts with compatible
part heights and shot sizes requiring simple ejection systems.
Stack Platens – The stack platen permits the consolidation
of two single-face molds in one injection molding machine.
This system delivers melt to a center platen via an offset
sprue bar. The center platen is configured with a Euromap or
SPI interface and transports melt to either side of the platen.
This allows two similar individual molds to function as a single-stack mold, increasing machine output, reducing floor
space requirements and utilizing existing tooling.
4-level stack molds quadruple output, without significant increase in clamp tonnage.
UNSCREWING MOLD BASES – ROTATING RATCHET RING
For parts that are unscrewed during ejection, Husky’s Rotating
Ratchet Ring (RRR) mold bases provide a superior alternative
to conventional unscrewing molds. The patented RRR
design uses teeth in the ratchet ring to unscrew the molded
part from a stationary core. The primary benefits of using
a stationary core are larger cooling channels and no rotary
seals. Additionally, the RRR design incorporates a unique
unidirectional clutch on the drive gear. The clutch permits
the ratchet ring to rotate in one direction to eject the part
and allows the ring to idle during rack reset.
Larger cooling channels, no rotary seals and the unique clutch design of the
Rotating Ratchet Ring provide faster cycles with less maintenance.
Integrated servo swingchutes for fastest possible cycle times.
SWINGCHUTES
Husky’s patented swingchutes replace costly robotics for
product handling. Swingchutes are actuated by cams or
servo motors and are integrated directly into the mold base.
Suction cups at the end of the swingchute arms grip the
parts, remove them from the mold and place them into a
stationary chute next to the mold.
GATE INSERTS
Properly designed gate inserts improve cycle time and gate
quality. Correctly positioned and sized gate insert cooling
lines provide the widest possible processing window without compromising gate quality. Accurate insert manufacturing and finishing ensures correct nozzle and cavity seal off,
eliminating detrimental resin hang-up spots. Husky provides
standard and custom gate inserts manufactured from
hardened tool steel and designed for easy maintenance and
optimal heat extraction.
WORKING WITH HUSKY
Ordering a mold base from Husky means one-stop shopping,
full project management and single-source responsibility.
We provide:
• Extensive mold base engineering expertise, including
experience with closures, unscrewing systems, thinwall
parts and cutlery
• Stack mold experience with 2- and 4-level stack mold
bases, stack platens and offset stack systems to maximize
machine output
• Rotating Ratchet Ring technology for unscrewing closures,
providing faster cycles and reduced maintenance
• Manufacturing capacity to handle multi-mold orders and
large plate production
Automated manufacturing cells provide capacity for large and multi-mold
projects.
Incorporating Husky mold bases into the mold is easy:
• You provide Husky with part drawing, including cavitation,
machine tie bar and shutheight specifications
• Husky recommends mold base size and ejection system
• Husky furnishes a core/cavity stack installation drawing
specific to the mold base
• Husky designs and manufactures a complete mold base
with all necessary accessories
The moldmaker simply designs and manufactures the core/
cavity stacks, supplying only the fasteners and seals to install
these components into the mold base.
Accurate bore alignment ensures extended mold insert life.
www.husky.ca
www.hotrunners.com
Americas & Asia
288 North Road
Milton, Vermont, USA 05468
Toll Free (800) 516 9590
Tel. (802) 859 8000
Fax (802) 859 8321
Europe
Hot Runner Mold Building
B.P. 231, L-3403 Dudelange,
Luxembourg
Tel. (352) 52 11 51
Fax (352) 52 11 5 4458
Our Mold Technology Team delivers in depth product knowledge, manufacturing resources and project management.
Rec ycled pape r, contai ning a mi nimum of 2 0% po st co nsume r fib er.
®/©2 003 H usky Inje ction Mold ing S ystem s Ltd. Printe d in Canad a. Apr il 20 03
Husk y ac tively prot ects its techni cal and d esign innov ations thro ugh a glo bal i ntelle ctual prop erty
stra tegy. Hu sky c urren tly h as mo re th an 90 0 pat ents and p atent appl icatio ns wo rldwi de.
The equip ment shown in t his p ublic ation may be co vered by o ne or more of these paten ts.
“Husky” is a trademark owned by Husky Injection Molding Systems Ltd.
Oth er co mpany, pr oduct , and servi ce na mes m ay be trad emark s of their resp ectiv e own ers.
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