JPS6365900A - Press completion detector in press finishing machine - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a press completion detection device for a press finishing machine that performs press finishing by sandwiching washed clothing between a heat cloth and an ironing board. be.

[Conventional technology]

A press finishing machine performs a press finishing on the laundry by heating it to 120 to 180° C. with steam or an electric heater or the like (between a cloth and an ironing board).

Conventionally, there are two methods for detecting the completion of pressing in this press finishing machine: manual type and automatic type.

In the manual type, the operator determines when the press is complete based on years of experience, presses the press completion switch, and releases the hot plate from the ironing board. In the case of an automatic type, the pressing time until the pressing is completed is set in advance using a timer or the like before pressing, and the hot plate is automatically released from the ironing board after the pressing is completed.

[Problem that the invention seeks to solve]

Incidentally, the content of laundry varies depending on the material of the clothing and the thickness of the fabric. Further, the temperature of the hot plate also rises and falls due to fluctuations in the vapor pressure of the steam that heats the hot plate.

Therefore, when the laundry is sandwiched between a hot plate and an ironing board for press finishing, the time it takes for water to evaporate from the laundry varies depending on the laundry. In addition to requiring skill, the operator had to be on standby near the press finishing machine in a position where he could press the completion switch at all times.

Even in the case of an automatic type, the operator needs experience in determining the pressing time depending on the type of laundry, and the pressing time must be adjusted individually using a timer, making the work complicated.

In addition, in most cases, the pressing time is increased, the laundry is heated excessively, and the moisture in the washed laundry is released, resulting in many problems such as the following. Firstly, the press time is too long, resulting in poor productivity. Second, since the laundry becomes hot, it can cause damage such as burning, melting, hardening, or shrinkage depending on the item. Moreover, on the contrary, the hot plate may be opened even though there is still moisture in the laundry, and it may be necessary to press the laundry again.

Therefore, the present invention aims to provide a press finishing machine that solves the above-mentioned problems.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a sensor below the air permeable ironing board of the press finishing machine to detect changes in the amount of steam evaporating from the laundry.

[Effect]

When laundry is sandwiched between a hot plate and a breathable ironing board, the laundry is heated, water contained in the laundry evaporates, and steam is generated. This steam passes through the ironing board and flows below the ironing board. This steam will no longer be generated once the washed material has dried, so by detecting with a sensor the time when this steam is no longer generated, it is possible to determine when pressing is complete.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

The press finishing machine consists of a hot plate 1 and an ironing board 2, and the embodiment shown in the accompanying drawings shows a press finishing machine for shirts that simultaneously presses the collar and cuffs of a shirt.

A hot plate 1 is provided to be openable and closable with respect to an ironing board 2, and this hot plate 1 is connected to a press cylinder 3 and a toggle mechanism 4.
The ironing board 2 is brought into pressure contact with the ironing board 2. A heating chamber 5 is provided on the back side of the hot plate 1, steam is supplied to the heating chamber 5, and the hot plate 1 is heated to a high temperature of 120 to 180°C. The hot plate 1 is made of a material that does not absorb water, such as metal.

The above-mentioned ironing board 2 is provided with a breathable receiving plate 9 on an ironing board main body 6 via a compression spring receiving plate 7 and a compression spring 8. They are stacked in the order of group 12.

A sensor 13 is installed below the receiving plate 9 of the ironing board 2 to detect changes in the amount of steam emitted from the laundry.

As this sensor 13, for example, a photoelectric switch having a light projecting section and a light receiving section can be used. This photoelectric switch has a contact that opens when light is passing between the light projector and the light receiver, and closes when light is blocked between the light projector and the light receiver due to night air. An example of a control circuit using this photoelectric switch is shown in FIG.

First, when the manual-automatic changeover switch SS is set to "automatic",
Press start pushbutton switch PB2 for press cylinder 3 of hot plate 1 (for safety, two are connected in series so that it can be operated with both hands
When you press (push and release) , R-ss
-PBI-PH1(x2)-3QL-3 circuit is closed,
The press starting solenoid valve SQL becomes conductive and the hot plate 1 descends.

At the same time, timer TL is activated via contact TLb (closed for a predetermined set time after energization), contact TLa is closed, and solenoid valve S○L is maintained in a conductive state. The setting time of the timer TL is the time required for the laundry to be heated by the hot plate 1 and steam to be generated (approximately 3 seconds).
During this time, the photoelectric switch CDS is in a light receiving state and its contact CDSA is open.

After that, before the set time of the timer TL times up, steam is generated from the laundry, this steam hits the receiving plate 911d of the ironing board 2, the photoelectric switch cds enters the light shielding state, and the contact cdsa closes. After that, the contact TLb of the timer TL opens.

After that, when the laundry dries and the steam passing through the receiving plate S of the ironing board 2 disappears, the photoelectric switch Cds enters the light receiving state, the contact cdsa opens, and the timer TL is no longer energized, so its contact TLa opens and the electromagnetic In the above embodiment, the valve SOL is inactive (inactive), the press stops, and the hot plate 1 is opened. However, this photoelectric switch may be set at another location, and the space portion and the light emitting portion and light receiving portion of the photoelectric switch may be connected by an optical fiber.

In addition, as another example of the sensor 13, when steam is generated from the laundry and this steam enters the space between the compression spring support plate 7 below the support plate 9 of the ironing board 2, this space Since the humidity and temperature of
: 1 can be used.

〔effect〕

According to the present invention, as described above, since the pressing completion time can be determined by the sensor, the operator does not need to be skilled, and there is no need to adjust the timer depending on the type of laundry. No more hassle. Also, since there is no extra press time, there is no scorching on the laundry. It is possible to prevent melting, hardening, shrinkage, etc. On the other hand, there is no need to open the hot plate and press the laundry again while there is still a lot of moisture in the laundry, so productivity is greatly improved and the quality of the finished product is also improved. There is.

[Brief explanation of drawings]

FIG. 1 is a front view showing an example of a press finishing machine of the present invention;
FIG. 2 is a partially cutaway side view of the same, FIG. 3 is an enlarged sectional view of the same, and FIG. 4 is a diagram showing an example of the side control circuit. 1...? +H12・・・Ironing board, 1
3...Sensor skewer 1st circle A-ichimo 2 figure □-□□-=:yo

Claims (1)

[Claims] A press finishing machine that performs press finishing by sandwiching laundry between a hot plate and a breathable ironing board, characterized in that a sensor is provided below the ironing board to detect changes in the amount of electricity evaporated from the laundry. Press completion detection device for press finishing machines.