Quick Mold Change: Giving Injection Molders
Reduced labor costs and time to market have become important issues in the injection molding industry. Increased competition has caused shops to find ways to reduce production runs, high inventory levels and extended mold change times.
Implementing Quick Mold Change
In recent years, to survive in today's competitive, worldwide market, manufacturers are reducing inventory cost by running smaller batch sizes and making shorter production runs. One way to maximize press uptime in an environment like this is to implement faster, more effective mold changes.
A quick mold change means that the material for the next part is in place, the automation is set-up and the mold is located and clamped in position, the same place, the same way, everytime, in the shortest time possible.
When Quick Mold Change (QMC) is implemented, companies will enjoy the benefits of:
How to Get Started
Step 1. Create a Quick Mold Change Team
|Upper Management||Injection Molding Machine Operator|
|Manufacturing Engineer||Set-Up Personnel|
|Tooling Engineer||Maintenance Supervisor|
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.
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.
First, carefully review your present method of changeover. You have to know where you are now to decide what steps are needed to achieve your goals.
After the present mold change process has been analyzed, look for ways to improve the process. The objective is to minimize the steps required and not to duplicate your work. Develop ways that will make the work 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.
Minimize raw material handling.
Have clamps and tools prepared before the machine shuts down for the mold change.
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.
HILMA Quick Change Systems improve your manufacturing productivity.
Call 1-800-827-2526 to discuss your specific quick change needs.
HILMA Div. Carr Lane Roemheld Mfg. Co.
927 Horan Drive – Fenton, Missouri USA 63026
Phone: (636) 386-8022 – Fax: (636) 386-8034
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