Mold protection
Detect abnormal resistance or motion inside a configured mold-open or mold-close window and execute the documented controller response.
G16
CLAMP / TOOL PROTECTION
Specify mold protection as a monitored closing window—not a generic low-pressure setting.
Define what mold motion is protected, where monitoring starts and ends, which signal or reference is used, how tolerance is controlled, what response follows and which evidence releases the configured machine.
ANSWER FIRST
Turn “mold protection” into a mold-specific control record.
The controller method can use staged torque, a learned reference curve, low-pressure limits or another documented approach. The RFQ should therefore define the protected window, monitoring basis, tolerance, reaction, recipe control and acceptance result instead of copying one number between tools or machines.
Carry the record into mold change and startupMold-protection release gate
- Exact controller, feature and configuration
- Identified mold, recipe and protected travel window
- Monitoring method, reference and tolerance owner
- Stop/alarm response, reset and access control
- Safe FAT/SAT result and retained evidence
DO NOT MERGE THE FUNCTIONS
Tool protection and personnel safety answer different risks.
Keep the mold-protection requirement inside the complete machine and cell safety review.
Guards, interlocks and energy control
Prevent or control exposure to crushing and other hazards. Mold protection never replaces guarding, interlocks, lockout/tagout or the approved safe-work procedure.
RFQ / CONTROL REGISTER
Twelve fields make the protection function comparable and testable.
Unknown fields should remain open actions. A feature name without its configured behavior is not acceptance evidence.
| Field | Record for the proposed machine and mold | Evidence to request |
|---|---|---|
| Function identity | Exact feature name, controller, software release, installed option and supplier document reference | Configured-machine order record and current manual |
| Mold and recipe identity | Mold, insert, core/slide state, recipe revision and approved setup conditions linked to the protection record | Controlled setup pack and recipe/version record |
| Protected motion | Mold-close and, where supported and required, mold-open motion; identify any separately monitored stages | Controller screen record and agreed functional description |
| Travel window | Start/end positions or controller-defined stages that remain active for the applicable mold motion | Mold-specific setup record with revision |
| Monitoring method | Torque, force, pressure, time, position or reference-curve method actually implemented by the proposed configuration | Supplier documentation plus configured-machine demonstration |
| Reference conditions | How a reference is taught or acquired, permitted machine state, mold condition, speed profile and responsible approver | Approved setup method and retained reference record |
| Tolerance and stages | Mold-specific limits, permitted adjustment range, separate zones/stages and the owner of each approved change | Controlled parameter record; no copied universal setting |
| Protective response | Configured stop, alarm, hold, opening or other response, including the state reached after detection | Functional description and approved acceptance result |
| Reset and recovery | Authorized reset, inspection, fault clearance and controlled restart requirements after an event | Machine/site procedure and training record |
| Access and change control | Roles allowed to teach, edit, bypass where legally and technically permitted, restore or copy the protection recipe | Account/role matrix, audit or change record and backup method |
| Event evidence | Alarm identity, time, recipe/mold context, retained trend or history, and any export required for investigation | Configured event/history demonstration and sample record |
| Acceptance ownership | Safe FAT/SAT method, approved test conditions, expected result, witness, deviation owner and closure evidence | Signed acceptance matrix linked to the machine configuration |
IMPLEMENTATION PATTERNS
Named controller examples are not interchangeable specifications.
Use official examples to ask better questions, then verify the method actually installed on the quoted configuration.
| Pattern | Attributed official example | Procurement question |
|---|---|---|
| Staged torque monitoring | Shibaura describes a controller example that divides mold close into three monitored segments and compares torque with segment tolerances. | How many independently configured stages exist on the quoted controller, what motion does each cover, and what happens outside tolerance? |
| Reference-curve monitoring | ARBURG describes its MouldSafetyAssist as using a reference curve with automatic adaptation to force-profile changes. | How is the reference captured, adapted, protected from uncontrolled change and linked to the mold recipe on the proposed machine? |
| Automatic low-pressure setup | Shibaura's S-Concept describes automatic calculation and setting of low-pressure clamp force (PCL) and the mold-closing limit (LS2), with fine adjustment. | Which limits can the proposed configuration set automatically, which still require approval, and what record proves the final mold-specific setup? |
ACCEPTANCE SEQUENCE
Release the function through six controlled evidence steps.
Never improvise a challenge with hands, body parts, tools or loose objects, and never bypass guards or interlocks. The manufacturer and site must approve the safe validation method.
Freeze the configuration
Record the exact machine, controller, software, installed feature and mold/recipe revision before accepting a function name.
Define the protected window
Agree the motion, travel stages, monitoring quantity, reference method, tolerances and configured response for the specific mold.
Approve a safe validation method
Use the manufacturer and site's risk-assessed method with named witnesses. This checklist does not provide an operating or test procedure.
Establish the reference
Capture the accepted mold condition and setup basis, then link the reference and permitted adjustments to the controlled recipe.
Verify response and recovery
Confirm detection, stop/alarm behavior, reached machine state, authorized reset and restart under the approved validation plan.
Handover the evidence
Retain settings, screenshots or exports, event history, access roles, backups, training scope, deviations and signed FAT/SAT results.
PRIMARY SOURCES / BOUNDARY
Official examples define the questions—not a universal setting.
These sources were reviewed for implementation patterns and the safety boundary. They do not prove a supplier configuration, performance result, certification or delivered case.
Three Stage Mold Protection Saves Time and Money
The official article describes a V70 controller example that divides mold close into three torque-monitored segments with separate tolerances and a stop/alarm response.
Boundary: This is an attributed Shibaura example. It does not establish a universal method, setting or feature on a NEW ORIENTAL IMM configuration.
S-Concept
The official page describes reference torque waveform monitoring and automatic PCL/LS2 setting with fine adjustment on the stated Shibaura concept.
Boundary: The named functions and abbreviations are product-specific examples; verify the exact quoted controller, option, motion and evidence.
Ensure machine availability
ARBURG describes MouldSafetyAssist as using a reference curve with automatic adaptation to changes in the force profile.
Boundary: MouldSafetyAssist is an ARBURG feature example, not a generic controller term or evidence of availability from this site's supplier.
Horizontal Injection Molding Machines
OSHA identifies crushing and amputation hazards in the mold area and describes guards/interlocks plus lockout/tagout expectations for applicable work.
Boundary: The page supports the separation between tool protection and personnel safety; destination rules, risk assessment and machine/site procedures still govern.
BUYER QUESTIONS
Mold protection procurement FAQ
The answers keep a tool-protection requirement separate from personnel-safety functions and machine-specific operating instructions.
01Is mold protection the same as personnel safety?+
No. Mold protection is a tool-protection function for monitored mold motion. It is not a substitute for guards, interlocks, lockout/tagout, a risk assessment or the site's authorized procedure.
02Is a low-pressure value enough to specify mold protection?+
No. A useful requirement also identifies the protected travel window, monitored quantity and method, reference conditions, tolerance, reaction, reset, access control, recipe link and acceptance evidence.
03Can one mold-protection setting be copied across molds?+
Do not assume so. Mold motion, slides, friction, speed profile, condition and controller method can differ. Establish and approve the protection record for the identified mold and recipe.
04What belongs in the RFQ?+
Request the exact feature/controller/options, monitored motion and stages, sensing or reference method, tolerance controls, protective response, reset/recovery, access roles, recipe/version control, event records and FAT/SAT evidence.
05How should a buyer accept the function?+
Use an approved, manufacturer-supported and site risk-assessed validation plan with the configured machine and identified mold. Do not improvise with hands, body parts, tools or loose objects, and never bypass guards or interlocks.
MOLD PROTECTION / NEXT STEP
Request the configured function and its acceptance evidence.
Attach the mold identity, motion window, monitoring method, reference/tolerance controls, response, recipe/access requirements and approved FAT/SAT evidence needed for the project.
Build the machine brief