Injection Mold Check List - Plastic Injection Molding Company Mold Tooling Manufacturer

At JBR, all finished molds are approved by our QA department before shipping, and we have strict final inspection instruction to check our products that details as below <Final Moulds Inspection Checking List>.

Tooling Inspection Final Checking list

Project Name:

Project Number

Part Name:

Part Number:

Tool Name:

Tool Number:

Tool source:

Customer:

Tool Steel:

No of Cavities:

Resin:

Machine Size:

CAVITY

What is the customer required core hardness

What is the hardness?

Is the material type and hardness stamped on bottom surface

of each cavity bloc

Yes

What is the required surface finish on the cavit

What is the cavity surface finish?

Is any EDM visible on cavity surface?

Yes

Does the cavity surface have a good visual appearance free of hammer

marks, dints, and machining marks deemed unexcept

Yes

If yes what are the issues?

Are cavity molding surfaces free of scratches?

Yes

Are cutter marks visible on the cavity surface?

Yes

Does the cavity require texturing

Yes

What is the customer required texture

Is the cavity texture

Yes

If so what is the texture type?

Are ribs polished in line of draw?

Yes

Is any EDM visible in the rib

Yes

Are cutter marks visible in the rib

Yes

CORE

What is the customer required core hardness

What is the hardness?

Is the material type and hardness stamped on bottom surface

of each core block

Yes

What is the required surface finish on the core

What is the core surface finish?

Is any EDM visible on core surfac

Yes

Does the core surface have a good visual appearance free of hammer

marks, dints, and machining marks deemed unexcept

Yes

If yes what are the issues?

Are core molding surfaces free of scratch

Yes

Are cutter marks visible on the core surfac

Yes

Does the core require texturing

Yes

What is the customer required texture

Is the core textured

Yes

If so what is the texture type?

If so what is the texture and depth?

Is Recycle Logo require

Yes

Are ribs polished in line of draw?

Yes

Is any EDM visible in the rib

Yes

Are cutter marks visible in the rib

Yes

SLIDES

Are slides tight?

Yes

Are slides loose?

Yes

Are the seal off angles under the slides >5˚?

Yes

If not what angle is it?

Yes

Are grease fittings installed?

Yes

Are the slides spring loaded

Yes

Is there a positive locking method for open positio

Yes

What is it?

Is it capable of holding the slide weight?

Are slides equiped with hydraulics?

Yes

If so are limit switches installed?

Yes

Slide Finishes

What is the customer required hardness?

What is the hardness?

Is the material type and hardness stamped on a non molding surface

of each lifter or slide?

Yes

What is the required surface finish on the molding sufaces

What is the surface finish?

Are ribs polished in line of draw?

Yes

Is any EDM visible in the ribs?

Yes

Do the slides have a good visual appearance free of hammer

marks, dints, and machining marks deemed unexceptable

Yes

If yes what are the issues?

Are the molding surfaces free of scratches?

Yes

Are cutter marks visible in the ribs?

Yes

LIFTERS

Are guide bushing installed?

Yes

Are grease fittings and lines installed?

Yes

Do square lifter have grease groove?

Yes

Are the square lifters made with P20?

Yes

If so are they nitrided?

Yes

Are the square lifters made with H13?

Yes

What is the customer requested hardness

What is the actual hardness

Lifter Finishes

What is the customer required hardness?

What is the hardness?

Is the material type and hardness stamped on a non molding surface

of each lifter or slide?

Yes

What is the required surface finish on the molding sufaces

What is the surface finish?

Are ribs polished in line of draw?

Yes

Is any EDM visible in the ribs?

Yes

Do the lifters have a good visual appearance free of hammer

marks, dints, and machining marks deemed unexceptable

Yes

If yes what are the issues?

Are the molding surfaces free of scratches?

Yes

Are cutter marks visible in the ribs?

Yes

INSERTS

What is the customer required hardness?

What is the hardness?

Is the material type and hardness stamped on a non molding surface

of each lifter or slide?

Yes

What is the required surface finish on the molding sufaces

What is the surface finish?

Are ribs polished in line of draw?

Yes

Is any EDM visible in the ribs?

Yes

Do the inserts have a good visual appearance free of hammer

marks, dints, and machining marks deemed unexceptable

Yes

If yes what are the issues?

Are the molding surfaces free of scratches?

Yes

Are cutter marks visible in the ribs?

Yes

Are ribs polished in line of draw?

Yes

Is any EDM visible in the rib

Yes

Are cutter marks visible in the rib

Yes

PARTING LINE

Parting lines width

surface finish of parting line

Relief depth -land width.

Is any EDM visible in the ribs?

Yes

Do the inserts have a good visual appearance free of hammer

marks, dints, and machining marks deemed unexceptable

Yes

If yes what are the issues?

VENTING

Parting line vent width & depth

Are ejector pins vented?

Yes

Are runners vented?

Yes

Are guide pin bushings holes vented?

Yes

Is last place to fill vented?

Yes

VISUAL APPEARANCE OF PLATES

WELDING

Is weld map included?

Yes

Is there any other welding not on the map?

Yes

If welding was done specify the type of rod used and process

RUNNER & GATES

Is the runner to customer specified size and shap

Yes

What is the customer specified size?

What is the customer specified shape?

Runner

Runner surface finish?

Are cutter marks visible on the core surfac

Yes

Gate

Gate surface finish

What is the required ga

Is any EDM visible in the gate?

Yes

Are cutter marks visible in the gate?

Yes

ELECTRICAL, HOT RUNNER

Are customer specified electrical plug/plugs used

Yes

Is the customer specified wiring diagram followed

Yes

Is electrical box/boxes installed?

Yes

Is it the customer specified box?

Yes

Is the wiring plaque on the operator side of the mo

Yes

Hot tips, manifold, heaters, thermocouples – bench tes

Yes

Hot tip – drafted, polished in the line of dra

Yes

Is the customer specified surface contact between the hot drop an

Yes

Hot tip, flush/recessed when hot.

Yes

Wires in channels with hold downs and protect

Yes

COLD RUNNER

Is a sprue puller undercut machined into c

Yes

Is the sprue puller polished in line with ejection

Yes

is the ejector pin land 1″ below sprue puller under

Yes

If not what is it?

EJECTION SYSTEM

Is the Core sequencing provided on an attached plaq

Yes

If no why?

Are pressure transducers required?

Yes

Are pressure transducers installed?

Yes

Is mould equipped for Alba connectors?

Yes

Knock out pullback stud

– flush with clamp pla

Yes

– correct thread

Yes

– correct thread dept

Yes

– correct counterbore de

Yes

Are knockout rod extentions required by the customer

Yes

If so are they installed, and flush to the surface

Are switches mounted and wired?

Yes

Is part and runner designed to fall clear?

Yes

If so does it fall clear?

Yes

Is part and runner designed for robot pickup?

Yes

If so does it stay on the mould?

Yes

If not why not?

Does it come freely off the mould?

Yes

Do we have enough space for robot?

Yes

How was it checked?

Ejector system – moves freely for the full strok

Yes

Are the ejector pin holes in the core square to bas

Yes

How was it checked?

Ejector pins guided square to ejector system?

Yes

How was it checked?

Do the ejector pin holes in the ejector plate line up with the ejector

pin bores in the core?

Yes

How was it checked?

Cavity ejection

2 stage ejection

Does the mold have multi stage ejection

Yes

Do the latches pocket into the core and cavity plates

Yes

Does the multi stage ejection use spring loaded latches

Yes

pocketed into cavity plate?

Yes

Is so are shoulder bolts installed?

Yes

Is the surface to seat the shoulder bolt spotted flat?

Yes

HYDRAULIC SYSTEM

Does the mold have hydraulic ejection?

Yes

Are Flow dividers installed?

Yes

Are switches mounted and wired

Yes

Ejector system – moves freely?

Yes

Ejector pins guided square to ejector system?

Yes

COOLING

Are water lines stamped to customer specificatio

Yes

Are water lines numbered to customer specifications?

Yes

Are water lines correct size to customer specification

Yes

Are waterlines counterbored?

Yes

Are the o-rings pocketed on the core retai

Yes

Are the o-rings pocketed on the core?

Yes

Describe o-ring fit in groove

Are thequality of all o-rings good enough?

Yes

Have water lines been pressure tested (1

Yes

Are there any water leaks?

Yes

If so where?

Do the water lines match the plaque?

Yes

Are all the baffles and plugs installed?

Yes

Are Jiffy connectors installed?

Yes

Are the customer specified fitting installed

Yes

Fitting names and model numbers

Is there enough space between fitting to install all the fittin

Yes

Are extention pipes used?

Yes

If so why

Water lines connected internally?

Yes

Water lines connected hard tubing

Yes

If so why?

Are water jumpers installed?

Yes

Are water lines sealed by so

Yes

MOULD FIT TO PRESS

Any obstructions on bottom surface of mo

Yes

If so what are they?

Is the customer specified locating ring installe

Yes

What is the customer specified locating ring size?

Is the locating ring at least 4MM higher than m

Yes

Is the customer specified sprue bushing install

Yes

What is Sprue radius orifice and size?

Are the eyebolts balance so the mould hangs strai

Yes

Safety Straps (2) (Red or contrasting Yellow).

Yes

Clamp slot size and locations

Are they to customer spec.?

Yes

Mould Length, Width, Height.

To swing mould, record corner to corner size.

What is customer specified K.O. holes size an

Mould K.O. holes size and pattern size.

MISCELLANEOUS

Should all screws not be machined and cut? Has allbeen

Yes

Guide pin length.

Is the customer specified Leader pin fit and installation do

Yes

What is the Leader Pin fit and installation process

Return pin length. (nothing contacting cavit

Are return pins spring loade

Yes

Pry bar slots.

Yes

Plates numbered and lettere

Yes

Insulation plat

Yes

Gate type used

Is cashew gate being u

Yes

cashew gate type

(Name of manufacture or homemade)

Is ejection stroke long enough to fully eject cashew gat

Yes

Is shot counter required

Yes

Is shot counter installed

Yes

Are all screw heads below the surface

Yes

Are eyebolt hole threads deep enough to fully seat ey

Yes

If no describe situation

Are there threaded lifting holes in all parts over 50 lbs (22.

Yes

Have all mold workpieces and spare part been inspected

Yes

Does the mold have a good visual appearance free of hammer marks,

dints, and machining marks deemed unexceptabl

Yes

Are angled seal that are <5˚ at least 4rc different or 1 side nitr

Yes

Is the material type and hardness stamped on bottom surface of each mol

Yes

Is the customer specified Horn pin fit and installation d

Yes

What is the Horn Pin fit and installation process?

Has the mold used the correct material and treatment with

Yes

Has the mold drawing been printed and copied in two cop

Yes

Have the molding condition sheet and sample inspection r

Yes

Are the both ends of the lifting bar at least 1MM shorter th

Yes

Are date clocks fastened by screws?

Yes

MOULD IDENTIFICATION

Are the following mold plaques on the operator side of the mold?

Mold Nameplate

Yes

Mould sequence

Yes

Hydraulic schematic

Yes

Waterline schematics

Yes

Electrical schematics

Yes

Thermocouple schematics

Yes

special instructions

Yes

Is “TOP OF MOULD”. Stamped on the top of the moul

Yes

Is the mould painted the customer specified colou

Yes

What colour is it painted?

Comments:

Loading Cancel.

Injection Mold Check List - Plastic Injection Molding Company Mold Tooling Manufacturer

Categories

Quality Assurance

Mold Making