Magnetic Clamping System For Quick Mold Change

Description

Magnetic Clamping System for Quick Mold Change is applied to the injection molding machine, die casting machine, punching machine, and turning machine through magnetic plate compatible with mold changer to achieve safe, fast, and convenient replacement for large molds, to accomplish the effect of quick mold change.

The magnetic clamping system is used to fix the mold on the injection machine. Magnetic plate is designed for the traditional injection machine and gives a solution for long working time on change molds, complex operation, and low security. This system uses a permanent magnet sucker as a fixed plate and moving plate, just by simple actions of magnetization and demagnetization, will fix & change the mold, which can indeed change mold in 3 minutes. The injection molding machine with a magnetic plate improved mold change time to 3 minutes but without changing the original structure, it is practical and convenient.

Magnetic Clamping System for Mold Change is suitable for 50-4000ton injection molding machines. It is also commonly used in the processes of machining the shell parts in appliance industries, electronic industries, and automobile industries. A magnet clamp automates the mold change process and eliminates the need for someone to put themselves at risk and waste time tightening bolts. 

Description of Magnetic Template

1. Junction Box

2. Flux Control System

3. Warning Signs

4. Proximity Sensor

5. Temperature Sensor

6. Ejector Hole

7. Fixing Hole

8. Nameplate

9. Removable Locating  Ring

10. Magnetic Saturation Detection

Features of Magnetic Clamping System for Quick Mold Change

With this magnetic clamping system, users are receiving unparalleled advantages including:

• standardized molds are not required

• height of clamping edge and mold shape is not necessary

• shorter downtimes, lower setup costs

• increased productivity

• clamping in barely accessible positions without any problems

• no reduced clamping surfaces

• process monitoring and thus absolute safety

• clamping force on the complete surface of the mold

• clamping with no deformation of the base plate

• reduced maintenance costs

Electro-Permanent Magnet Principle

Electromagnetic coil energized for 0.5 sec.

The Pole of the Alnico magnet is inverted.

Neodymium magnet and Alnico magnet become polar.

The magnetic flux of magnets is emitted on the surface of the magnet core. Thus, clamping the mold.

Electromagnetic coil energized for 0.5 sec.

The Pole of the Alnico magnet is inverted.

The magnetic flux of the Neodymium magnet and Alnico magnet is not emitted from the surface of the magnet core. Thus, it unclamps the mold.

Safety-Magnetic force remains permanently after magnetization

Energy Saving-Over 95%power saving

Quick-More than 90% time is saved

Longer lifetime-IP67 waterproof

Higher Yield-Magnetic force guarantees an ideal clamping on mold

Maintenance-free-None spare parts are required for the template

Installation diagram

Magnetic Clamping System for Molds features 8 safety precaution attributes that make it particularly effective and safe.

1. Closeness Detection

In-Mold Changing State, the surface of the mold should be in full contact and is closely clamped by magnetic platens at each side, no interval gap existed. 

2. Magnetic Flux Detection

Release of the machine is only given if the measured magnetic flux, after magnetization, reaches the standard minimum predefined safety value. If this is not the case, an error is indicated. If during the injection molding process the magnetic flux value decreases minimally, the machine stops immediately.

3. Temperature Detection

To prevent demagnetization of the magnetic platens caused by an extremely high temperature, temperature detection is engineered to send an alarm signal if the temperature exceeds the standard value.

4. Pulse Current Value Detection

In MAG and DEMAG phases, the control system monitors the value of the pulse current and will send a successful signal only when the pulse current reaches the required value.

5. Mold Dislocation Detection

Mold dislocation sensor detects the real-time location of the mold in Injecting State and will send an alarm signal if there’s a slight slide of the mold, to stop the running molding process.

6. Distance Detection

Only when the distance between the mold and magnetic platens is less than 0.2mm, the controller will authorize the proceeding of MAG and DEMAG phases, otherwise, an alarm signal will be sent to stop the running of the plastic injection machine.

7. Interlock Control System

This Interlock Control System will allow the injection machine to work only on the condition that all detection signals are normal, with both movable and fixed magnetic platens successfully magnetized and the key switched to Injecting State.

8. State-Switching Key Design

Using a key to switch between Mold Changing State and Injecting State. Demagnetization operation will only be valid with the key switched to Mold Changing State and the DEMAG button pressed simultaneously. If the key been switched to Injecting State, MAG and DEMAG operation can not be achieved.

Package

What is quick mold change in comparison to traditional mold changes?

Quick mold change is the process of switching out molds and dies automatically, a process often referred to as SMED or single-minute exchange of dies. A quick mold change system is much faster than traditional methods and it can drastically reduce downtime and increase productivity while helping to keep the work environment safe.

With traditional mold change methods, the process can be extremely time-consuming. Tools are necessary to bolt and unbolt the manual mold clamps, and often the operators must walk back and forth around the injection molding machine several times. Accidents can occur due to human error because there is no safety signal. The operator might forget to secure the manual clamps and as a result, the mold could drop.

A quick mold change system is not only faster but it has an interlock system that ensures that the operator cannot proceed with the mold change until all the necessary conditions are met. The operator is kept safe because they will be alerted and cannot continue with the changeover if clamps are not properly secured.

Company Introduction

Great Magtech Electric offers an excellent selection of magnetic assembly, magnetic tools, and magnetic equipment for home use, office use, industrial use, computer use, and so on. Both our office and factory are located in Ningbo which is a very developed city and very big seaport.

We provide you with an extensive range of magnetic assembly, magnetic tools, and magnetic equipment. Containing our excellent original design, every product is elaborately produced by our factory. When you use them, you feel so comfortable and wonderful.

We appreciate your inquiry and we will give you incomparably good products and services. Welcome to be our distributor. The high quality of our products and the considerate after-sale service will make your business more and more prosperous. 

If you want to purchase magnetic assembly, magnetic tools, and magnetic equipment, please feel free to contact us.