Troubleshooting for interlining adhesive presses

　Troubleshooting for interlining adhesive presses

The heater has a sensor, and when the temperature rises too high, the DC current between thermostats (5) and (6) goes to 0V, and between SSRs (3) and (4) also goes to 0V.
At this time, a voltage is applied between SSRs (1) and (2).
This voltage varies depending on the specifications, but for domestic specifications, it is 100 V or 200 V.
For overseas specifications, the voltage is 220V or 380V.
At this time, the thermo lamp on the front side of the thermostat and the SSR lamp on the SSR are off.

Thermostat does not work.

First, check the power supply.
The thermostat’s input power supply is either 100 VAC or 200 VAC, depending on the model.
Check the input voltage of the thermostat with a tester.
Once the input voltage is confirmed, check the output voltage. Check to see if the thermostat output voltage of 5-20 VDC is being output.
If there is no input voltage to the thermostat, it will not operate even if the thermostat itself is not faulty.

The actual temperature does not rise relative to the temperature setting.

Check if the thermostat is outputting a signal to the SSR.
After checking the input voltage of the thermostat, check if the thermostat output voltage of 5-20 VDC is being output.
Check the operation of the SSR.　Set the thermostat at 130° C. Measure the voltage between SSR’s #1 and #2. If the voltage is 0 V, electricity should be flowing to the heater. If the temperature still does not rise, the heater is defective. If there are multiple heaters, several of them may be out. To check for broken heaters, use a tester to check the continuity of one heater at a time.

The actual temperature is abnormally high relative to the set temperature

Defective temperature sensor.
Defective SSR.
The heater with the temperature sensor is out.

How to match actual temperature and temperature setting

Check the actual temperature of the press using thermo paper.
(e.g.) When the temperature setting is 130°C and the temperature indicated on the thermo paper is 140°C, this means that the actual temperature is 10°C higher than the setting.

For analog thermostats

Adjust the thermostat temperature setting to 140 degrees. Turn the temperature compensation dial on the thermostat so that the other lamp also blinks at the set temperature of 140 degrees.
Now the actual temperature is 140 degrees Celsius compared to the set temperature of 140 degrees Celsius. Adjust the temperature setting to 130°C. Wait until the thermo lamp blinks at 130°C.

For digital thermostats

First, turn off the machine.
Loosen the take-out on the front of the thermostat and pull out the contents of the thermostat. There is a DIP switch inside, DIP switch No. 4 is usually in the OFF position, turn the No. 4 switch to the ON position. Do not touch any other switches.
Place the thermostat in the case again and turn on the power; operate the FUNCTION key and when Cn5 is displayed on the meter that normally shows the set temperature, the temperature compensation is ready.

Interlining adhesion press trouble, causes, and countermeasures

PHENOMENON	CAUSE	COUNTER-MEASURE
GAP BETWEEN MATERIAL & ADHESIVE INTERLINING	Difference in thermal shrinkage between the outer material and adhesive interlining. If the outer material shrinks more, or if the interlining shrinks more.	Adhere under low-temperature bonding conditions. Use interlining that easily fits the surface material.
SEEPAGE OF RESIN	When an interlining with a large amount of resin or an interlining with a large size of resin is used for a thin material. The bonding or finishing conditions are too strong.	Select interlining with the appropriate amount of resin and resin shape for the surface material. Adjust adhesion and finishing conditions.
CONTRACTION	High adhesion temperature. High steam volume.	Reduce the bonding temperature. Reduce the amount of steam in the process.
LOSE LUSTER. DISCOLORATION.	High ironing temperature. The adhesive press temperature is high. The high steam volume of the steam iron.	The ironing temperature should be 130℃ or lower. Keep the adhesive press temperature below 130°C. Use less steam. Use a press cloth during press finishing and ironing.
SHINE	High ironing temperature. Ironing pressure or pressing pressure of the machine is too strong. ※When the gloss is lost due to the aforementioned action, dry-heat ironing may be used to restore the gloss.	The ironing temperature should be 130℃ or lower. Reduce ironing pressure and pressing pressure. Use a press cloth when pressing and ironing.
PEELING ADHESION FAILURE	Adhesion conditions are inadequate. Adhesive interlining with a small amount of resin, or interlining with inadequate resin shape.	Adjust the temperature, pressure time, and adhesion conditions. Select an interlining material with the appropriate amount of resin and resin shape for the surface material.