Karl performs mold design reviews
If the customer has a document for their mold standards, then we will check the mold design for compliance to the customer’s standards.
Karl also has a checklist for mold design reviews. Shown here are some of the items checked during mold design reviews.
If the customer has a document for their mold standards, then we will check the mold design for compliance to the customer’s standards.
Karl also has a checklist for mold design reviews. Shown here are some of the items checked during mold design reviews.
Mold Design Review
Customer name and address
Mold design review performed by
Product Information
Product Number
Product Name
Product Revision
Product 2D file name
Product 3D file name
Product Weight
Plastic Material
Quantity of product needed per year
Quantity of product needed for mold life
Quantity of product to be covered under mold warranty
Molding Machine Information
Brand
Model number
Date of manufacture
Tons
Tie bar distance
Maximum daylight
Minimum mold height
Maximum mold height
Shot size
Screw diameter
Nozzle orifice
Ejector stroke
Ejector connection
Electric or hydraulic
Install mold via clamps or other method?
Is machine capable of showing; screw position curve, pressure curve, and screw sped curve?
Molding Process
Required cycle time
Shrink
Remove product via robot or drop product
Robot EOT
RJG pressure sensors
Fit of mold to Machine
Is the molding machine platen shown in the mold 3D design file?
A-Side mold weight
B-Side mold weight
Total Mold weight
Mold weight OK for crane?
Locating ring
Sprue radius and orifice
Mold design exterior
Clamps for clamping the mold to the molding machine will not interfere with waterlines or other components of the molding machine. Mold can be clamped in machine with no problems.
All components within area of clamp plates
All plates chamfered
Parting line locks
prybar slots
Mold identification plate
Eyebolt locations (hang level with both halves and hang level when lifting individual halves)
Eyebolt holes in all plates
Safety straps
Mold base metal and hardness
Mold design general
Mold base relieved from parting line
Parting line location approval
Surface contact area of parting line
Offset leader pin and ejector return pin
Leader pins engage first
Metric or inch
All metal types laser marked with material and hardness
Are cavity and part identifications and date codes needed and in the proper size and location?
Mold design fixed side
Cavity plate thickness
Leader pin debris slots
Cavity metal and hardness
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Vents
Coatings (TiN, DLC, Electroless Nickle)
Spares
Mold design moving side
Core plate thickness
Support pillars
Core metal and hardness
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Vents
Coatings (TiN, DLC, Electroless Nickle)
Spares
Side actions
Mechanical, Hydraulic or pneumatic
Slide retainers
Slide angle pins
Lifters
Hydraulic fitting type
Hydraulic flow separator
parting line lock method for side action
Metal type and hardness of slide, gibbs and wear plates
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Vents
Coatings (TiN, DLC, Electroless Nickle)
Spares
lifters
Temperature control
Cooling channels
Cooing oil or water
Hoses rating for temperature
Insulator plates
Baffles
Analyze for maximum cycle time
Water connectors
Inlets and outlets engraved
Water manifold
Runner and gate
Mold flow
Hot manifold
Hot half by hot runner company or by mold maker
Can cavity plate be pulled off of hot half to moving side while mold is in the molding machine
Hot runner electrical connectors
Hot runner pneumatic. Individual circuits? Type of connectors?
Valve gate
Jig grind valve gates
Valve gate pneumatic or hydraulic
Open nozzle
Gate size style and location
Cold runner
Runner puller
Sprue puller
Can the molding machine nozzle reach the sprue bushing
Are runner shutoffs needed?
Ejection
Ejector housing cover
Ejector plate switch
Ejector pins
Jig grind ejector pin holes
considerations for running greaseless
Ejector springs
Ejector stroke
Ejector plate guides
Dowel pins
Is the part influenced to stick in the correct side of the mold, considering which side of the part can or cannot have ejector pin marks?
Are there enough ejector pins, blades and ejection sleeves?
Guided ejection
Stop pads
Is slide and/or lifter travel enough to clear when the part is ejected
Bill Of Material
Must contain every item of the mold.
Must show; part number, company name, distributor name, distributor location, distributor contact Name, distributor phone number
Customer name and address
Mold design review performed by
Product Information
Product Number
Product Name
Product Revision
Product 2D file name
Product 3D file name
Product Weight
Plastic Material
Quantity of product needed per year
Quantity of product needed for mold life
Quantity of product to be covered under mold warranty
Molding Machine Information
Brand
Model number
Date of manufacture
Tons
Tie bar distance
Maximum daylight
Minimum mold height
Maximum mold height
Shot size
Screw diameter
Nozzle orifice
Ejector stroke
Ejector connection
Electric or hydraulic
Install mold via clamps or other method?
Is machine capable of showing; screw position curve, pressure curve, and screw sped curve?
Molding Process
Required cycle time
Shrink
Remove product via robot or drop product
Robot EOT
RJG pressure sensors
Fit of mold to Machine
Is the molding machine platen shown in the mold 3D design file?
A-Side mold weight
B-Side mold weight
Total Mold weight
Mold weight OK for crane?
Locating ring
Sprue radius and orifice
Mold design exterior
Clamps for clamping the mold to the molding machine will not interfere with waterlines or other components of the molding machine. Mold can be clamped in machine with no problems.
All components within area of clamp plates
All plates chamfered
Parting line locks
prybar slots
Mold identification plate
Eyebolt locations (hang level with both halves and hang level when lifting individual halves)
Eyebolt holes in all plates
Safety straps
Mold base metal and hardness
Mold design general
Mold base relieved from parting line
Parting line location approval
Surface contact area of parting line
Offset leader pin and ejector return pin
Leader pins engage first
Metric or inch
All metal types laser marked with material and hardness
Are cavity and part identifications and date codes needed and in the proper size and location?
Mold design fixed side
Cavity plate thickness
Leader pin debris slots
Cavity metal and hardness
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Vents
Coatings (TiN, DLC, Electroless Nickle)
Spares
Mold design moving side
Core plate thickness
Support pillars
Core metal and hardness
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Vents
Coatings (TiN, DLC, Electroless Nickle)
Spares
Side actions
Mechanical, Hydraulic or pneumatic
Slide retainers
Slide angle pins
Lifters
Hydraulic fitting type
Hydraulic flow separator
parting line lock method for side action
Metal type and hardness of slide, gibbs and wear plates
Shutoff angles
Dowel pins
Surface finishes
Draft angles
Vents
Coatings (TiN, DLC, Electroless Nickle)
Spares
lifters
Temperature control
Cooling channels
Cooing oil or water
Hoses rating for temperature
Insulator plates
Baffles
Analyze for maximum cycle time
Water connectors
Inlets and outlets engraved
Water manifold
Runner and gate
Mold flow
Hot manifold
Hot half by hot runner company or by mold maker
Can cavity plate be pulled off of hot half to moving side while mold is in the molding machine
Hot runner electrical connectors
Hot runner pneumatic. Individual circuits? Type of connectors?
Valve gate
Jig grind valve gates
Valve gate pneumatic or hydraulic
Open nozzle
Gate size style and location
Cold runner
Runner puller
Sprue puller
Can the molding machine nozzle reach the sprue bushing
Are runner shutoffs needed?
Ejection
Ejector housing cover
Ejector plate switch
Ejector pins
Jig grind ejector pin holes
considerations for running greaseless
Ejector springs
Ejector stroke
Ejector plate guides
Dowel pins
Is the part influenced to stick in the correct side of the mold, considering which side of the part can or cannot have ejector pin marks?
Are there enough ejector pins, blades and ejection sleeves?
Guided ejection
Stop pads
Is slide and/or lifter travel enough to clear when the part is ejected
Bill Of Material
Must contain every item of the mold.
Must show; part number, company name, distributor name, distributor location, distributor contact Name, distributor phone number