株式会社三葉製作所

PRODUCTS

Induction Heating Type preheater

Today preheater is indispensable at cable manufacturing sites from various aspects such as product quality maintenance, speed-up and yield improvement.
It's been almost 30 years since the first unit of our preheater (Q5 series) were developed and sold with our unique technology. With reference to delivery record and valuable opinions from customers, we have made improvements not only in performance but also usability. We have received repeat orders from customers who have used the preheater and high evaluation.
The Q5 series is available in 3 models, depending on the wire size of single wire φ0.25 to φ3.8 mm and twisted wire 0.05 to 8.0 sq.

Product Features

1.Energy saving

As the three-phase power supply is converted to direct current internally, the reactive power is small therefore the running cost is economical.

2.Wire speed tracking

Since the line heating speed is controlled from the line speed of 20 m/min and the heating temperature of the wire is controlled, the loss of wire can be reduced because it can be produced at the same quality as the normal production speed at startup and shutdown.

In addition, it constantly monitors the environmental temperature and automatically follows the temperature changes in the summer and winter without changing the setting.

3.Space saving

Since the 800HZ high frequency transformer is used, the device is compact and can be installed in the minimum space.

4.Operability

By setting the wire size, line speed, and temperature conditions on the touch panel, operation can be started without making fine adjustments during production.

Also, by calling the conditions registered in the recipe screen, reproducible operation can be started in a short time regardless of the skill of the worker.

5.Extensive standard equipment

The non-contact type disconnection detector is equipped on the input line and the air clamp mechanism is equipped on the output line, which is useful for disconnection.

From the viewpoint of safety and machine protection, various heating interlocks and anomaly detection functions are provided to enhance the control functions.

6.Semi-custom made

Paint color, front door opening and closing direction, caster wheel type (standard) or rail moving type (option) can be selected.

※The function of the device is a standard specification, so we cannot design and manufacture it according to customer request.

7.Temperature feedback control

As standard, the internal program controls the current corresponding to the wire size based on the resistance value of copper so that the conductor surface temperature can be heated close to the set value. However, since the actual conductor surface temperature is not controlled, if the conductor is not 100% copper or tin plated, the electrical resistance value changes and error occurs.

Also, due to heat dissipation, the temperature will be lower than the set value depending on the wire size and line speed.

By providing feedback control with a non-contact type thermometer as an option, it is possible to produce under temperature conditions closer to the set value.

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