Need Help?
(636) 386-8022 (636) 386-8022
0

 

 

 

What is Injection Molding? 

Injection molding is a manufacturing process for the fabrication of plastic parts.

 

What is Quick Mold Change? 

A quick mold change means that the material for the next part is in place, automation is set-up and the mold is located and clamped in position. With Quick-Mold change system, the mold is clamped in the same place, the same way, every time. Because of this, mold changes are accomplished in the shortest time possible.

 

How to Speed Up Your Plastic Injection Mold Changes 

To stay competitive, molders must reduce costs with, smaller lot sizes, less inventory and shorter productions runs, which demands more mold changes. More mold changes mean more downtime. Downtime can be minimized with an effective quick mold change program. The user can expect:

  • Improved Lead Times, due to quick change overs. 
  • More Competitive, through just-in-time deliveries. 
  • Reduced Inventories, possible with shorter production runs
  • Increased Machine Capacity, by slashing down times.
  • Improved Quality of parts, due to uniform and repeatable clamping forces. 
  • Reduced Labor Costs, mold changes can be done in minutes vs hours  

 

Why Use Hilma Quick Mold Change Systems?

Roemheld-USA can help minimize that downtime with variety of solutions to implement a quick mold change program in your plant.

This includes M-TECS magnetic clamping by Roemheld-Rivi or Hilma hydraulic clamp systems. With either solution, the latest magnetic or hydraulic technology will be customized to your press to provide quick, safe and reliable system optimized for your application. Roemheld can offer the complete quick mold change solution, which may  include clamping systems, mold roller bars, and mold carts. With mold change times slashed, a quick return on investment will convince plastic molding manufacturers that Roemheld-USA offers the solutions for today’s market demand

 

Series Data sheet Technical data

 

M-Tecs Magnetic Platens

 

 

Data Page – 1.1134

Clamp your molds faster

 

M-TECS Magnetic Platens make your mold changes faster.

max. working temperature: 120°C
specific magnetic force: 18 kg/cm² (directly at the pole)
effective magnetic force: max 5-12 kg/cm²
magnetic penetration depth: 15-20mm
plate thickness: 47mm

 

Learn More 

Wedge Clamps 

 


Data Page – 2.24000

Clamp your mold with a push of a button.

 

Wedge clamps help apply a spring force to lock molds into the injection molding machines to facilitate easier mold changes. The clamp makes mold changes safer by allowing users to clamp a mold onto a press at the push of a button, rather than using screws.

 

Learn More 

 

Roller and Ball Lifters 

 

Data Page – 8.1834A

roll your molds easily into
place

 

Roller and baill lifters make mold changes fast and efficient. For heavy loads, for linear movement of molds: On the underside of the roller bar lifting pistons are provided. Pressure is applied to these pistons using hydraulic pressure generators, which lift then the complete roller bar. The mold positioned on the roller bars, is not in contact with the table top and can be easily moved.

 

Learn More 

Mold Cart 

 

 

Data Page – 8.89000

Transport molds easily without waiting for the forklift

The mold changing cart handles medium weight molds up to 1100 lbs., and helps the molds to be safely transported in an efficient way.

  • Time-saving mold change
  • Safe material transport
  • Exact positioning
  • Safe and easy mold transport
  • Improved ergonomics for the user
  • Highest safety by automatic docking station

 

Learn More 

Couplings

 

Data Page – F9.461

Easily connect oil, coolant or air from machine to mold

 

Couplers for Molds help you easily connect oil, coolant or air from machine to mold, they can be used on Injection Mold Machines to pass fluids from the machine to the mold.

 

Learn More

 

Core Clamp

 

Product Brochure

Quickly change mold inserts without tools

 

 

 

Core Clamps allow you to quickly and accurately change sections of your mold in seconds.

 

Learn More

Drop Zero Clamps 

 

Data Page – CLR-DZ12-889-598

Locate and clamp before machining

Our Drop Zero Clamping System holds Mold tolerances from machining to inspection.

 

Learn More 

 

Stark Pallet Clamp 


Product Brochure

Locate and clamp your mold for machining

The STARK Pallet Clamp is a fast closing clamping plate that can be clamped mechanically using 4 x 20 kN spring force and raised hydraulically on release. The fastening and positioning holes, clamping edge, and alignment surface make placing in your application easy on many different common machines including larger ones. The system can also be customized.

Learn More

 

MCP 5-Axis Machine Vises

 

 

WS 5.4502

Clamp your mold components accurately for machining

 

The patented segment design ensures a high degree of precision and stability.

Learn More 

 

Block Cylinder

 

B 1.554

Use block cylinders with position monitoring to move mold sections during production.


The block clamp gives the mold designer more freedom in their design changes.

 

Learn More

Built in Elements

 

B1.5401

Pistons for custom mold movements

 

Built-In-Elements make mold design easier.

 

Learn More

Lifting Columns 

 

M4.101

Locate your mold parts ergonomically
for assembling.

Lifting Columns can be configured to allow the assembly of your runners or mold sections to be accurate, safe and easy.

 

Learn More

 

 

 



How to Get Started with Quick Mold Change 

Step 1. Create a Quick Mold Change Team
Step 2. Select and Analyze a Machine and Its Molds
Step 3. Analyze the Present Mold Change Process
Step 4. Research and Implement the New Processes and Standards
Step 5. Evaluate the New Process
Step 6. Follow-Up and Repeat the Process

 


Step 1
Create a Quick Mold Change Team

Select a team and appoint a team leader

Upper Management Injection Molding Machine Operator
Manufacturing Engineer Set-Up Personnel
Tooling Engineer Maintenance Supervisor
Production Supervisor Accountant

 

Step 2
Select and Analyze a Quick Mold Change Machine and Its Molds

Each QMC application is different. There is no single method that is best for all applications. The most appropriate method to be used for each machine is determined by carefully examining all production requirements and related data. The following is some of the information that needs to be reviewed before selecting a QMC machine:

  • What are the present and long range production requirements?
  • What is the goal for mold change time?
  • How is the plant layout?
  • Which machines are involved?
  • How many molds are used in the machine?
  • Minimum and maximum sizes and weights of molds.
  • Present clamping method; the quantity and size of the bolts used.
  • Clamping points: locations, shape, clamping heights, depth of ledge.

 


Step 3
Analyze the Present Mold Change Process

First, carefully review your present method of mold changeover. You must know where you are now to decide what steps are needed to achieve your goals.

  1. Analyze every step and the sequence required to make a mold change.
  2. Break down each step in the mold process to help determine how it can be reduced or eliminated.
  3. How much time is required for each step? To get accurate times, casually observe a set-up team on several occasions. Obviously an authority figure standing near the machine with a watch or a video camera will produce figures less than the actual times occuring day to day.
  4. Who is involved in the mold change process?
  5. What is required? What tools? What materials?

 


Step 4

Research and Implement the New Mold Change Process and Standards

After the present mold change process has been analyzed, look for ways to improve the process. The objective is to minimize the steps required .Develop ways that will make changing a molds easier and faster.

Start with things that are simple and low cost:

  • Have new mold(s) prepared and staged in advan­ce near the machines.
  • Mold storage areas should be located near press.
  • Will mold change be overhead or side loaded?
  • If  hydraulic clamping is used, the clamps are fixed mounted, so  molds must have common clamp points, usually accomplished with standardized  back plates.
  • If magnetic clamping platens are used , standardization is not needed. But the press must be able to accommodate the added thickness of the two platens.

Standardization must be evaluated to achieve your Quick Mold Change goals. The variety and sizes of molds that have been accumulating in plants everywhere make changeovers time consuming and tedious, since standardization was not a consideration when the molds were designed and built.

 


Step 5
Evaluate the New Process

 


Step 6
Follow-Up and Repeat the Process

Quick Mold Change Applications

 

 

Click your Application for More Information