JPH0456640B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a roll ironer for drying washed and dehydrated items while pressing them.

[Conventional technology]

Fig. 5 is a main part configuration diagram showing an example of a conventional roll ironer, and Fig. 6 is an air piping system diagram showing an example of a conventional roll ironer. A ring motor is used. 2a to 2c are rolls, each of which has a large number of small holes for ventilation passing through the roll surface, and is connected to the motor 1 via a transmission device (not shown). Generally, the surface portion of the roll surface is made of a breathable elastic material. 3
A to 3c are heating devices that are heat generating parts fixed to the main body and are pressed against the rolls 2a to 2c. Ducts 4a to 4c suck and exhaust air from inside the rolls 2a to 2c. Reference numeral 5a denotes a supplied article to be washed, which is a cloth containing a large amount of water that has been dehydrated in a previous process using a dehydrator or the like. 5
b is a processed product of the supplied washed material 5a, which is a finished washed material and is dried while being subjected to a press action. Pulleys 6a and 6b are rotatably mounted at fixed positions. 7
is a pulley whose position changes with a tensioner. Reference numerals 8a and 8b are guide portions, which are convex surfaces between the rolls 2a and 2b and between the rolls 2b and 2c. Reference numeral 9 denotes an endless tape that is wound around the rolls 2a to 2c, the pulley 6a, the tensioner 7, and the pulley 6b, and is generally attached to several locations along the width of the roll. Reference numeral 10 denotes a speed control device connected to the motor 1. 11 is a speed setting device with an adjustment knob on the operation panel. 31
a~31c are air cylinders for lifting and lowering rolls 2a~
2c and the heating devices 3a to 3c, or apply pressure between the rolls 2a to 2c and the heating devices 3a to 3c.
The rollers 2a to 2c are generally provided at both ends of the rolls 2a to 2c. 40 is a solenoid valve for raising and lowering the rolls, which connects the rolls 2a to 2c to the heating device 3.
This is to set whether to press against or pull away from rolls 2a to 3c, and the state shown in Fig. 6 is for rolls 2a to
2c is pressed against heating devices 3a to 3c.
50 is a pressure reducing valve and a heating device 3a for heating the rolls 2a to 2c.
- Pressure setting valve to raise and release from 3c.
51 is a pressure reducing valve and a heating device 3a for the rolls 2a to 2c.
~3c for setting the pressure. The pressure force between the rolls 2a to 2c and the heating devices 3a to 3c is as follows:
This is the sum of the inner diameter of the lifting air cylinders 31a to 31c multiplied by the air pressure set by the pressure reducing valve 51 and the weight of the rolls 2a to 2c.

The operation of the above conventional example is as follows.

The rolls 2a to 2c are rotated by the motor 1 in the direction of the arrow under the control of the control device 10 via a transmission device (not shown). At this time, the surface speed of the roll is adjusted to a required speed by manually operating the adjustment knob of the setting device 11. At the same time, the tape 9 runs as the rolls 2a to 2c rotate. On the other hand, when the ducts 4a to 4c are sucked and exhausted by a fan or the like (not shown), the rolls 2a to 2
Since the inside of the jacket is evacuated in step c, outside air is drawn into the jacket from the surface of the roll. The heating devices 3a to 3c generate heat to heat the surrounding area.

When the article to be washed 5a is supplied in the above-mentioned operating state, it is sandwiched between the roll 2a and its opposing surface, and the rotation of the roll sends it.

As the rotation of the rolls 2a to 2c progresses, the tape 9 peels off the supplied washed object 5a from the roll, and then conveys it while pressing it against the guide portion 8a.
The supplied article to be washed 5a, which has passed through the roll 2b → guide section 8b → roll 2c in the same way, is heated by the heating devices 3a to 3c and heated by the rolls 2a to 3c during these steps.
2c, the generated water vapor is suctioned and exhausted, and can be taken out as a finished item to be washed 5b in an ironed dry state. The supplied articles 5a to be washed are continuously supplied and sequentially processed.

Check the dryness of the finished laundry 5b,
If the drying is insufficient, the surface speed of the rolls 2a to 2c is adjusted to be slow, and if the drying is overdrying, the surface speed of the rolls 2a to 2c is adjusted to be faster so that the next treatment can obtain an appropriate degree of dryness. The finished laundry 5b that is insufficiently dried is reprocessed.

The pressing force between the rolls 2a to 2c and the heating devices 3a to 3c is set at a pressure reducing valve 51, and all of the supplied items to be washed 5a are processed. In order to change the pressure contact force, it is necessary to reset the pressure contact force using the pressure reducing valve 51 every time the type of the supplied washing object 5a changes.

[Problems to be Solved by the Invention] Items to be washed using a roll ironer generally include sheets, wrapping cloths, yukatas, tablecloths, pillowcases, and railway backrests. In order to ensure proper drying conditions for these items to be washed, the thickness of the fabric, the amount of moisture remaining in the items to be washed, the material of the items to be washed (e.g. 100% cotton, a blend of Tetoron and cotton), etc. It is necessary to change the driving speed depending on the situation. On the other hand, in recent years, there has been an increasing demand for maintaining appropriate textures depending on the type of items to be washed. That is,
For sheets, wrapping cloths, etc., it is important to press the items to be washed against the heating device with high pressure to increase the heat transfer rate between the two and increase the processing speed to increase productivity, but for tablecloths, yukata, etc. It is necessary to reduce the pressing force to create a soft finish so as not to damage the texture of the items to be washed. In this way, it is necessary to frequently change the processing speed and pressing force in order to finish under the optimum conditions depending on the items to be washed, which is extremely troublesome. For this reason, in reality, the pressure contact force is not changed depending on the items to be washed. SUMMARY OF THE INVENTION An object of the present invention is to eliminate such problems and provide a roll ironer that can preset the processing speed and pressing force of the rolls to appropriate values depending on the items to be washed.

[Means for solving problems]

A roll ironer according to the present invention has a rotating roll and performs a drying and pressing process on laundry, and the roll ironer includes a speed control means for controlling the speed of the rotating roll, and a pressing force for adjusting the pressing force for pressing the laundry. It is characterized by comprising an adjusting means and a means for presetting the speed of the rotary roll and the pressing force to appropriate values by the speed controlling means and the pressing force adjusting means in accordance with the type of the object to be washed. In addition, in the circuit that controls the surface speed of the roll, a plurality of setting devices for adjusting the speed are installed in parallel, and in the circuit that sets the pressurizing force of the object to be washed, a pressurizing force adjusting device consisting of a plurality of pressure reducing valves is installed. A changeover switch is installed on the operation panel.
By this operation, it is possible to select which setting device and pressurizing device to operate from among the speed setting device and pressurizing force adjusting device, and each setting device and pressurizing force adjusting device are therefore preset. The operating speed and pressurizing force can be selected individually or with a single switch depending on the type of material to be washed.

[Function] According to the present invention, the speed and pressure of the rotating roll are selected according to the type of the object to be washed, and these values are adjusted by the speed control means of the rotating roll and the pressure force adjusting means. It is possible to preset to the appropriate value that best suits the item, so that the item to be washed can always be finished under optimal conditions.

〔Example〕

Fig. 1 is an air piping system diagram showing one embodiment of the present invention, Fig. 2 is a speed setting circuit diagram showing one embodiment of the present invention, and Fig. 3 is an explanation showing the operation of one embodiment of the present invention. Since the roll ironer main body, roll drive motor 1, control device 10, and setting device 11 are the same as those of the conventional one, they will be described with the same reference numerals. Reference numerals 12, 13, and 14 are setting devices, respectively, which are preset speed setting devices arranged inside the panel, etc.;
Reference numeral 5 indicates a changeover switch, which is a changeover switch for speed and force, which is provided on the operation panel. Reference numeral 16 is a speed setting device, which is a speed setting device provided in the circuit selected by the changeover switch 15, and is used as a speed setting. One of the setting devices 11, 12, 13, 14 and 17 are operation panels on which the setting device 11, a changeover switch 15, etc. are arranged. AR1 to AR4 are relays, and 18 is a pressure setting device disposed in the circuit selected by the changeover switch 15, which turns the pressure selection solenoid valve 41 ON and OFF. Reference numeral 52 denotes a pressure reducing valve that sets the pressure applied to the rolls 2a to 2c and the heating devices 3a to 3c. For example, the pressure reducing valve 52 is used for high pressure. 53 is a pressure reducing valve, this is pressure reducing valve 5
In contrast to 2, it is used for low pressure.

For example, the set air pressure of the pressure reducing valve 52 is 6 kg/
cm ² G, and the pressure reducing valve 53 is 2 Kg/cm ² G. 41 is a solenoid valve for selecting pressure force, and in the state shown in FIG.
2c and the heating devices 3a to 3c are pressed together at low pressure, and when the solenoid valve is energized, they are brought into pressure contact at high pressure.

The operation of the above embodiment of the present invention will be explained.

Before starting, set as below.

(1) Set the setting device 11 to the low speed side. In this case, considering the characteristics of the electromagnetic coupling motor, the motor 1 can be adjusted to the desired high speed gradually after starting.
You can start driving without straining yourself.

(2) Set the setting devices 12, 13, and 14 in advance so as to obtain a speed suitable for the type of the supplied washed material 5a to be processed. The appropriate speed setting value depends on experience.

(3) The pressure reducing valves 52 and 53 are set in advance so as to obtain a pressure suitable for the type of the supplied washed material 5a to be treated. The appropriate pressure setting value depends on experience.

(4) Set the changeover switch 15 so that it is operated by the circuit of the setting device 11. Pressure setting device 18
is set to operate at low pressure.

After the start-up operation, adjust the setting device 11 to gradually approach the desired high speed.

When the changeover switch 15 is changed over and set to the position corresponding to the supplied washing material 5a to be processed, relay AR1 is turned OFF and relays AR2 and AR are turned off.
3. When one of AR4 turns on, the setting device of the corresponding circuit (one of 12, 13, 14)
The speed changes to the set speed. Relay AR1,
When AR2 operates, solenoid valve 41 for pressure selection
Also, make sure that relay AR3,
When the AR 4 is activated, a circuit (not shown) is set so that the solenoid valve 41 is energized. In this way, when the changeover switch 15 is switched to activate the relay AR3, for example, the pressurizing force setting device 18 excites the pressurizing force selection solenoid valve 41, and the high pressure air set by the pressure reducing valve 52 is activated. The rolls 2a to 2c are brought into pressure contact with the heating devices 3a to 3c, and a high pressing force can be obtained.

When the supplied object to be washed 5a is fed, a finished object to be washed 5b is obtained which has been processed under optimal conditions at an appropriate speed and appropriate pressure.

When changing the type of the supplied object to be washed 5a, the changeover switch 15 can be switched to the corresponding position, and the appropriate speed and pressing force can be similarly obtained.

FIG. 4 is an air piping system diagram showing another embodiment of the present invention, in which numerals 42a to 42c are solenoid valves for selecting pressure force, which are provided to change the pressure force for each of the rolls 2a, 2b, and 2c. ing. 42a
are used to select the pressing force of roll 2a, 42b of roll 2b, and 42c of roll 2c, respectively. 54 is a pressure reducing valve for setting a high pressure as a pressurizing force for the roll 2a, 55 is a pressure reducing valve for setting a low pressure as a pressurizing force for the roll 2a, 56 is a pressure reducing valve for setting a high pressure as a pressurizing force for the roll 2b, and 57 is a pressure reducing valve. A pressure reducing valve 58 is used to set a low pressure as the pressing force of the roll 2b, a pressure reducing valve 59 is used to set a high pressure as the pressing force of the roll 2c, and a pressure reducing valve 59 is used to set a low pressure as the pressing force of the roll 2c.

Differences between the embodiment shown in FIG. 4 and the embodiment shown in FIG. 1 will be described. The procedure for changing the operating speed is the same as in FIG. The roll 2a has a pressure reducing valve 54,
At 55, air pressure for high pressure and low pressure can be set separately for the roll 2b using pressure reducing valves 56 and 57, and for the roll 2c using pressure reducing valves 58 and 59, respectively. Each setting depends on experience. For example, the pressure applied to the roll 2a is increased to increase the contact force between the object to be washed 5a and the heating device 3a, thereby increasing the drying capacity, and the pressure applied to the roll 2c is slightly lowered to increase the pressure of the tape 9 passing through. This is to prevent marks from remaining on the item 5a to be washed.

As described in the first embodiment, relay AR1,
When AR2 is activated, pressurizing force selection solenoid valve 42a
~42c should not be excited, and the relay AR
3. When AR4 operates, the corresponding electric valves 42a to 42
A circuit (not shown) is set so that c is excited.

At this time, when the changeover switch 15 is switched to activate the relay AR3, for example, the pressurizing force selection solenoid valves 42a to 42c are energized, and the pressure reducing valve 5 is energized.
4, 56, and 58 press the rolls 2a to 2c against the heating devices 3a to 3c, and the pressure between each roll and its corresponding heating device is strong and different. It can be applied as pressure.

In the first and second embodiments described above, the heating device 3
We have described a type of roll ironer in which the rolls 2a to 2c move up and down while the rolls a to 3c are fixed.
Conversely, the rolls 2a to 2c are fixed, and the heating devices 3a to 3
Naturally, the present invention can also be applied to a roll ironer of the type in which c moves up and down. Further, although the explanation has been given using an air cylinder as an example of pressurizing force, the present invention can also be applied to other pressurizing methods such as a hydraulic cylinder.

〔Effect of the invention〕

According to the present invention, the following excellent effects can be achieved.

(1) Easy operation ensures appropriate operating speed and pressure, so it is possible to obtain the appropriate finish depending on the type of item to be washed.

(2) Pressure order (roll 2a
→2b→2c) Since the pressing force can be changed, it is possible to appropriately select two usually different performances of improving drying ability and improving finishing quality with easy operation.

[Brief explanation of the drawing]

Fig. 1 is an air piping system diagram showing one embodiment of the present invention, Fig. 2 is a speed setting circuit diagram showing one embodiment of the present invention, and Fig. 3 is an explanation showing the operation of one embodiment of the present invention. 4 is an air piping system diagram showing a second embodiment of the present invention, and FIG. 5 is a diagram of a conventional roll ironer.
FIG. 6 is an air piping system diagram showing an example of a conventional roll ironer. 15...Selector switch, 16...Speed setter,
18... Pressure force setting device, 41... Solenoid valve for pressurization force selection, 42a to 42c... Solenoid valve for pressurization force selection,
50-59...pressure reducing valve.

Claims (1)

[Claims] 1. In a roll ironer that has rotating rolls and performs drying and pressing treatment of washed items,
a speed control means for controlling the speed of the rotating roll; a pressing force adjusting means for adjusting the pressing force for pressing the object to be washed; and the speed controlling means and the pressing force adjusting means in accordance with the type of the object to be washed. A roll ironer comprising means for presetting the speed of the rotating roll and the pressing force to appropriate values.