JPS6228320Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a dry cleaning device that prevents ringing, ringing, etc. from occurring on the object to be cleaned.

A conventional dry cleaning apparatus is configured as shown in FIG. 1, for example. In the figure, 1 is the main body of the dry cleaning device, 2 is a rotary cylinder that stores the items to be cleaned inside and is rotatably held in the main body 1, and 3 is in communication with the rotary cylinder 2 and is exposed to hot air from the rotary cylinder 2. A lint filter 4 is connected to the lint filter 3 and is connected to a blower motor 5 and a blower fan 6.
7 is a cooler connected to the blower 4, through which cooling water flows to condense solvent gas and water vapor from the object to be cleaned, and a water separator ( (not shown). 8 is an exhaust valve provided at the outlet of the cooler 7 so as to be openable and closable; 9 is an exhaust port that communicates the outlet of the cooler 7 with the inlet of an exhaust duct (not shown) and is opened and closed by the exhaust valve 8; 10 is the cooler 7
A heater 11 is inserted between the outlet of the rotary cylinder 2 and the rotary cylinder 2 and heats the air to the rotary cylinder 2 by the heat of the steam flowing inside. The provided intake port 12 is an exhaust valve provided in the intake hole 11 so as to be openable and closable.

During the cleaning process, the cleaning solvent is forcibly circulated through the rotating cylinder 2 for cleaning. Examples of cleaning solvents include petroleum-based solvents, perchlorethylene, 1.1.1. trichlorethane, and fluorine-based solvents. Solvents are used, and the time required for drying and recovery decreases in order of increasing boiling point. In addition, in order to enhance the cleaning and finishing effects, auxiliary agents containing high boiling point components such as water-soluble dirt removing activators, antistatic agents, and softening agents are used in combination with each of the above-mentioned solvents. The components are configured to suit.

However, due to uneven dewatering, uneven drying, etc., the high boiling point components of the auxiliary agent remain locally on the object to be cleaned, causing ringing and
The cleaning solvent remains as a ring, and in particular, cleaning solvents with a lower boiling point are more likely to cause ringing.

In addition, the degree of occurrence of ring smudges differs depending on the material and processing method of the object to be cleaned. For example, during the dehydration process of resin, there may be localized areas that are already dry and areas that are not yet dried. , the high-boiling components of the auxiliary agent migrate to the undried parts, causing rounding. In addition, when quilting products are dried, the drying speed of the parts sewn together with thread is slow, so the high boiling point component of the auxiliary agent migrates around these parts, causing hoops. Next, down vests and the like have uneven breathability, which causes hoops throughout.

In order to prevent the occurrence of such ringing, there are methods to leave the high boiling point components of the auxiliary agent uniformly throughout the auxiliary agent, or to rinse out the high boiling point components of the auxiliary agent with another new liquid. The latter measure is being implemented. However, since the antistatic agent and softening agent are also rinsed out by the new solution, the generation of static electricity cannot be prevented and a soft finish cannot be expected.

This invention was made with the above points in mind, and is intended to prevent the occurrence of ringing etc. by making the auxiliary agent remain uniformly on the entire object to be cleaned. This will be explained in detail with reference to the drawings from FIG. 2 showing an embodiment.

In those drawings, 13 is the main body of the dry cleaning apparatus, 14 is a rotary cylinder that stores the object to be cleaned inside and is rotatably held by the main body 13;
15 communicates with the rotating cylinder 14 and the rotating cylinder 1
A lint filter 16 captures lint, etc. mixed in the hot air from 4, and 16 has a lint filter 15 at the inlet.
A blower 17 communicates with the rotary cylinder 14 through the rotary cylinder 14 and circulates air in the rotary cylinder 14.
This cooler has an inlet communicating with the outlet of No. 6, and cooling water flows through the inside of the cooler, condensing solvent gas and water vapor from the object to be cleaned, and sending the condensed water to a water separator (not shown). A first cylinder 18 is provided at the inlet of the cooler 17 so as to be openable and closable, and is driven by a first cylinder 19.
An intermediate valve 20 is a bypass duct whose inlet is connected to the outlet of the blower 16 for bypassing the wind from the blower 16, 21 is an exhaust valve provided at the inlet of the bypass duct so as to be openable and closable and driven by an exhaust cylinder 22; 23 is an intermediate valve; An exhaust port 24 communicates the inlet of the bypass duct 20 with the inlet of an exhaust duct (not shown) and is opened and closed by an exhaust valve 21;
This is a pressure regulating valve provided between the bypass duct 20 and the cooler 17, which guides the solvent gas from the bypass duct 20 to the cooler 17 and condenses it, thereby suppressing the rise in pressure within the bypass duct 20 due to the solvent gas and adjusting the pressure.

A second cylinder 26 is driven to open and close the second bypass duct 25, which is provided at the outlet of the bypass duct 20.
An intermediate valve, 27, is a demister whose inlet is connected to the outlet of the cooler 17 and whose outlet is opened and closed by a second intermediate valve 25, 28, is a heater interposed between the outlets of the bypass duct 20 and the demister 27 and the rotary cylinder 14, through which steam flows, 2
Reference numeral 9 denotes an intake port provided through the side wall of the body 13 between the rotating cylinder 14 and the heater 28, and 30 denotes an intake port 2
9 is provided with an intake valve which can be opened and closed and which is driven by an intake cylinder 31; 32 is a button trap which is connected to the rotary cylinder 14 and which catches insoluble impurities such as buttons which have come off from the object to be washed during washing; 33 is a flow valve which is connected at one end to the button trap 32;
Reference numeral 34 denotes a base tank to which the other end of the flow valve 33 is connected and which contains a cleaning solvent.

Next, the operation of the embodiment will be explained.
First, during the cleaning process, the first and second intermediate valves 18, 25
are respectively at the position o in FIG. 2, the inlet of the cooler 17 and the outlet of the demister 27 are open, the exhaust valve 21 and the intake valve 30 are respectively at the position c in the figure, and the exhaust port 23 and the intake Mouth 2
9 is closed, the blower 16 and the heater 28 are turned off, and only the cooler 17 is turned on. After the cleaning solvent is supplied to the rotary cylinder 14, the solvent is forcibly circulated between the rotary cylinder 14 and the button trap 32 by the pump, thereby performing cleaning.

Next, during the dewatering process, the first and second cylinders 1
9 and 26 are driven, and the first and second intermediate valves 18 and 25 are respectively moved to the position c in FIG. While being closed, the blower 16 and heater 28 are turned on.
Then, by the operation of the blower 16, air is sent from the bypass duct 20 to the heater 28, where it is heated and becomes hot air, and the hot air is
Each part of the object to be cleaned inside the rotary cylinder 14 is heated uniformly to prevent uneven evaporation of the solvent.

Next, the operation during the drying process differs depending on the material of the object to be cleaned, etc. In the case of a syringe, the heating time is short because it dries easily, and the first and second cylinders 19 , 26 are driven, the first and second intermediate valves 18 and 25 are respectively moved to the position o in FIG. 2, and the inlet of the cooler 17 and the outlet of the demister 27 are opened. On the other hand, in the case of quilted items, down vests, etc.
Since it takes time to equalize the temperature of each part of the object to be cleaned, the state at the time of the liquid removal treatment described above is maintained and the first and second cylinders 19 and 26 are driven when the temperature is uniformly heated. , first and second intermediate valves 1
8 and 25 are respectively moved to the position o in the figure, and the inlet of the cooler 17 and the outlet of the demister 27 are opened.

Then, the inlet of the cooler 17 and the demister 2
By opening the outlet 7, the solvent gas and water vapor from the object to be cleaned are condensed in the cooler 17 and then sent to the water separator, where the solvent is recovered and the object to be cleaned is dried. . At this time, the amount of solvent recovered changes as shown by the solid line in Figure 4, compared to the conventional case shown by the broken line in the same figure.
Since the solvent is rapidly recovered, the solvent is uniformly evaporated from the entire object to be cleaned, so that no undried parts are left, and the auxiliary agent remains uniformly over the entire object to be cleaned, thereby preventing the occurrence of ringing and the like.

In addition, when the pressure inside the bypass duct 20 rises above the withstand pressure of the main body 13 due to the solvent gas, the pressure regulating valve 24 is activated and the solvent gas is guided from the bypass duct 20 to the cooler 17 and condensed, thereby adjusting the pressure. It extends to protect each part of the main body 13. By operating the pressure regulating valve 24 as appropriate to raise the pressure slightly above normal, quilting, down vests, etc. can be easily and uniformly dried, and the auxiliary agent remains uniformly to prevent the occurrence of ringing, etc. Easily preventable. Furthermore, the demister 27 can prevent the solvent condensed in the cooler 17 from scattering again.

Next, during the deodorization process, the first and second cylinders 1
9, 26, exhaust valve 22, and intake valve 30 are respectively driven, and from the state at the time of the drying process, the first and second
The intermediate valves 18 and 25 are each moved to the position c in FIG. 2 to close the inlet of the cooler 17 and the outlet of the demister 27, and the exhaust valve 21 and the intake valve 30 are each moved to the position o in the same figure. As a result, the exhaust port 23 and the intake port 29 are opened, and the heater 28 is turned off. And blower 1
6, the outside air sucked in from the intake port 29 deodorizes the object to be cleaned in the rotary cylinder 14, and then is supplied to the exhaust duct from the exhaust port 23 and discharged. At this time, the inlet of the cooler 17 is closed, and the volume of the air flow path from the intake port 29 to the exhaust port 23 is reduced, so that deodorization loss is reduced.

As described above, the dry cleaning device of this invention includes a blower whose inlet communicates with a rotatably held cylinder, a cooler whose inlet communicates with the outlet of the blower, and a dry cleaning device provided at the inlet of the cooler so as to be openable and closable. a first intermediate valve, a bypass duct whose inlet is connected to the outlet of the blower, and a bypass duct that is openable and closable at each outlet of the cooler and the duct;
a second intermediate valve that closes the cooler outlet and opens the duct outlet when the first intermediate valve is closed, and opens the cooler outlet and closes the duct outlet when the first intermediate valve is opened; Since a heater is installed between each outlet of the duct and the cylinder, it is possible to uniformly heat the entire object to be cleaned and then recover the solvent at once. As a result, it is possible to prevent the occurrence of ringing and ringing on the object to be cleaned, and also to prevent the apparatus from increasing in size.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional dry cleaning device, FIG. 2 and the following drawings show an embodiment of the dry cleaning device of this invention, and FIG.
FIG. 3 is an explanatory diagram of the operation of each part in FIG. 2, and FIG. 4 is a relational diagram showing changes over time in the amount of cleaning solvent recovered. 14... Rotating cylinder, 16... Blower, 17
... Cooler, 18 ... First intermediate valve, 20 ... Duct, 24 ... Pressure adjustment valve, 25 ... Second intermediate valve, 27 ... Demister, 28 ... Heater.

Claims (1)

[Scope of utility model registration request] A blower whose inlet communicates with a rotatably held cylinder, a cooler whose inlet communicates with the outlet of the blower, and a cooler which is openable and closable at the inlet of the cooler and which is initially closed and then opened during the drying process. a bypass duct whose inlet is connected to the outlet of the blower; and a bypass duct that is openable and closable at each outlet of the cooler and the duct, and closes the cooler outlet when the first intermediate valve is closed. and a second intermediate valve that opens the cooler outlet and closes the duct outlet when the first intermediate valve opens.
A dry cleaning device comprising: an intermediate valve; and a heater interposed between each outlet of the cooler and duct and the cylinder.