JP2016107623A - Washing apparatus and washing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to prevent crystallization of a component of washing liquid, fixing in a thin-film state or occurrence of rust on a surface of an object to be washed after washing, shorten cooling time of the object to be washed after washing, and make a washing work more efficient.SOLUTION: A washing apparatus comprises: a washing tank 2 which is capable of housing an object to be washed A and storing a heated-state washing liquid B which washes the object to be washed A; a washing liquid storage tank 3 capable of storing the washing liquid B used in cleaning; a washing liquid discharge system 5 which connects the washing tank 2 and the washing liquid storage tank 3, and discharges the washing liquid B used in washing from the washing tank 2 to the washing liquid storage tank 3; a cooling liquid storage tank 4 which has lower temperature than the heated-state washing liquid B and capable of storing cooling liquid C having the same quality as the heated-state washing liquid B; and a cooling liquid supply system 7 which connects the washing tank 2 and the cooling liquid storage tank 4, and supplies the cooling liquid C from the cooling liquid storage tank 4 to the washing tank 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cleaning apparatus and a cleaning method for cleaning an object to be cleaned, and more specifically, a cleaning object such as a mold, and a resin residue, rubber residue, glass residue, oil, The present invention relates to a cleaning apparatus and a cleaning method for removing deposits such as grease and rust preventives.

  2. Description of the Related Art Conventionally, as a cleaning apparatus for cleaning a cleaning target such as a resin molding die, a cleaning apparatus that can store a cleaning target and store a cleaning liquid has been provided (Patent Document 1). reference).

  Such a cleaning apparatus performs cleaning on a cleaning target (removal of deposits attached to the cleaning target) by immersing the cleaning target in a cleaning liquid (for example, alkaline cleaning liquid) in a cleaning tank for a predetermined time. ing.

Japanese Patent Laid-Open No. 11-90937

  By the way, in this type of cleaning apparatus, in order to enhance the cleaning effect of the cleaning liquid, the cleaning liquid stored in the cleaning tank is heated to a predetermined temperature (for example, around 90 ° C.) by the heating means, and the cleaning liquid in a high temperature state is cleaned. I try to immerse things.

  For this reason, in this type of cleaning device, the cleaning target is not removed from the cleaning liquid immediately after the cleaning of the cleaning target is completed, and the cleaning target temperature is changed from a high temperature to a low temperature (for example, about normal temperature). Things can be removed from the cleaning solution.

  More specifically, in this type of cleaning apparatus (cleaning method), when the object to be cleaned is taken out from the cleaning liquid immediately after cleaning, the object to be cleaned is in a high temperature state. Therefore, the cleaning liquid adhering to the cleaning target evaporates due to the influence of the heat of the cleaning target itself, and the remaining components of the cleaning liquid tend to crystallize or adhere to the surface of the cleaning target.

  In consideration of such a situation, it is conceivable that the operator immediately rinses the object to be cleaned and removes the components of the cleaning liquid immediately after taking out the object to be cleaned from the cleaning liquid.

  However, when the object to be cleaned in a high temperature state to which the cleaning liquid is adhered is washed with water, rust is generated on the surface of the object to be cleaned due to the effect of rapid cooling and water quality.

  Accordingly, the conventional cleaning apparatus (cleaning method) takes out the cleaning target from the cleaning liquid in the cleaning tank until the temperature of the cleaning liquid in the cleaning tank decreases (until the cleaning target in the cleaning liquid becomes low temperature). Is prohibited.

  Therefore, since the conventional cleaning apparatus (cleaning method) requires a long time from the completion of cleaning of the cleaning object to the removal of the cleaning object, there is a problem that the work efficiency in the cleaning operation of the cleaning object is poor.

  Therefore, in view of such circumstances, the present invention prevents the crystallization of the components of the cleaning liquid on the surface of the object to be cleaned after cleaning, the occurrence of thin film adhesion and rust, and the cooling time of the object to be cleaned after cleaning. It is an object of the present invention to provide a cleaning device and a cleaning method capable of shortening the length of the time and improving the efficiency of the cleaning operation.

  The cleaning apparatus according to the present invention can store a cleaning object, and can store a cleaning liquid in a heated state for cleaning the cleaning object, a cleaning liquid storage tank that can store the cleaning liquid used for cleaning, A cleaning liquid discharge system that connects the cleaning tank and the cleaning liquid storage tank, the cleaning liquid discharge system that discharges the cleaning liquid used for cleaning from the cleaning tank to the cleaning liquid storage tank, and the heating state at a temperature lower than that of the cleaning liquid in the heated state. This is a cooling liquid supply system that connects a cooling liquid storage tank capable of storing a cooling liquid of the same quality as the cleaning liquid, and the cleaning tank and the cooling liquid storage tank, and supplies the cooling liquid from the cooling liquid storage tank to the cleaning tank. A liquid supply system, and after washing the object to be washed with the washing liquid in the washing tank, the washing liquid used for washing can be discharged from the washing tank to the washing liquid storage tank via the washing liquid discharge system, and the cooling liquid is cooled Cooling through supply system Characterized in that it is provided configured to be capable of cleaning tank from the reservoir.

  According to such a configuration, the object to be cleaned is cleaned with the cleaning liquid heated in the cleaning tank, the cleaning liquid used for cleaning is discharged from the cleaning tank to the cleaning liquid storage tank through the cleaning liquid discharge system, and then the heating tank is heated to the heating tank. Since the same quality cooling liquid is supplied via the cooling liquid supply system at a lower temperature than the cleaning liquid in the state, the temperature of the high-temperature cleaning object after the cleaning can be efficiently lowered by the cooling liquid. Thereby, the cooling time of the cleaning target after cleaning can be shortened, and the efficiency of the cleaning operation of the cleaning target can be improved. In addition, since the object to be cleaned is cooled with the same quality cooling liquid at a temperature lower than that of the cleaning liquid in the heated state, crystallization of the components of the cleaning liquid on the surface of the object to be cleaned, thin film sticking, and generation of rust can be prevented.

  As one aspect of the cleaning apparatus according to the present invention, a cooling liquid recovery system for connecting a cleaning tank and a cooling liquid storage tank, and cooling for recovering the cooling liquid supplied to the cleaning tank from the cleaning tank to the cooling liquid storage tank It is preferable that a liquid recovery system is provided so that the cooling liquid in the cleaning tank can be recovered in the cooling liquid storage tank after the object to be cleaned in the cleaning tank is cooled.

  According to such a configuration, after the object to be cleaned in the cleaning tank is cooled, the cooling liquid is recovered from the cleaning tank, so that the used cooling liquid can be reused.

  In this case, the cleaning liquid supply system connects the cleaning tank and the cleaning liquid storage tank, and includes a cleaning liquid supply system that supplies the cleaning liquid from the cleaning liquid storage tank to the cleaning tank, and at least one of the cleaning liquid storage tank and the cleaning liquid supply system. The cleaning liquid is configured to be heatable, and after the cooling liquid in the cleaning tank is collected in the cooling liquid storage tank, the cleaning liquid heated in at least one of the cleaning liquid storage tank and the cleaning liquid supply system is transferred from the cleaning liquid storage tank to the cleaning tank. It is preferable to be able to supply.

  According to this configuration, after the cooling liquid in the cleaning tank is collected in the cooling liquid storage tank, the cleaning liquid heated in at least one of the cleaning liquid storage tank and the cleaning liquid supply system is supplied from the cleaning liquid storage tank to the cleaning tank. Therefore, when the cleaning is performed again, it is not necessary to heat the cleaning liquid, and the next object to be cleaned can be cleaned immediately.

  As another aspect of the cleaning apparatus according to the present invention, it is preferable to include a heating means disposed in the cleaning tank.

  According to such a configuration, the cleaning liquid in the cleaning tank can be heated, the temperature of the cleaning liquid can be raised, the cleaning target can be heated and cleaned, and the deposits attached to the cleaning target can be efficiently removed. it can. Further, since an installation space as a heating means is not separately provided outside, space saving can be achieved.

  As another aspect of the cleaning apparatus according to the present invention, it is preferable to include temperature adjusting means for maintaining the cooling liquid in the cooling liquid storage tank at a normal temperature or a low temperature.

  According to such a configuration, since the temperature adjusting means for maintaining the cooling liquid in the cooling liquid storage tank at normal temperature or low temperature is provided, even the used cooling liquid can be maintained at normal temperature or low temperature.

  As another aspect of the cleaning apparatus according to the present invention, a steam recovery tank in which the steam in the cleaning tank and the steam in the cleaning liquid storage tank are recovered, and a first steam recovery system that connects the cleaning tank and the steam recovery tank, And a second steam recovery system connecting the cleaning liquid storage tank and the steam recovery tank, and preferably configured to recover the steam in the cleaning tank being cleaned and the steam in the cleaning liquid storage tank.

  According to this configuration, the internal pressure of the cleaning tank and the cleaning liquid storage tank being cleaned can be adjusted by collecting the steam in the cleaning tank being cleaned and the steam in the cleaning liquid storage tank.

  As another aspect of the cleaning apparatus according to the present invention, the fluid in at least one of the cleaning liquid discharge system, the cooling liquid supply system, the cooling liquid recovery system, the cleaning liquid supply system, and the steam recovery system is used. It is preferable to provide an air pressure system that is supplied and discharged by air pressure.

  According to this configuration, the supply and discharge of fluid in at least one of the cleaning liquid discharge system, the cooling liquid supply system, the cooling liquid recovery system, the cleaning liquid supply system, and the steam recovery system is pneumatically controlled. Therefore, the number of pumps used for fluid transfer can be reduced, and the configuration of the apparatus can be simplified.

  The cleaning method according to the present invention is a cleaning method using any one of the above-described cleaning apparatuses, and includes a cleaning process for cleaning a cleaning target with a cleaning liquid in a heated state in the cleaning tank, and a cleaning liquid from the cleaning tank after the cleaning process. A cleaning liquid discharging process for discharging the cleaning liquid used for cleaning to the storage tank, and a cooling liquid having a temperature lower than that of the heated cleaning liquid and the same quality as the heated cleaning liquid is supplied from the cooling liquid storage tank to the cleaning tank after the cleaning liquid discharging process. And a cooling step for cooling the object to be cleaned.

  According to such a configuration, the object to be cleaned is cleaned with the cleaning liquid heated in the cleaning tank, the cleaning liquid used for cleaning is discharged from the cleaning tank to the cleaning liquid storage tank through the cleaning liquid discharge system, and then the heating tank is heated to the heating tank. Since the same quality cooling liquid is supplied via the cooling liquid supply system at a lower temperature than the cleaning liquid in the state, the temperature of the high-temperature cleaning object after the cleaning can be efficiently lowered by the cooling liquid. Thereby, the cooling time of the washing | cleaning target object after washing | cleaning can be shortened, and efficiency improvement of a washing | cleaning operation | work can be aimed at. In addition, since the object to be cleaned is cooled with the same quality cooling liquid at a temperature lower than that of the cleaning liquid in the heated state, crystallization of the components of the cleaning liquid on the surface of the object to be cleaned, thin film sticking, and generation of rust can be prevented.

  As one aspect of the cleaning method according to the present invention, it is preferable to include a cooling liquid recovery step of recovering the cooling liquid in the cleaning tank from the cleaning tank to the cooling liquid storage tank after the cooling process.

  According to such a configuration, after the cooling process, the coolant supplied to the cleaning tank is collected from the cleaning tank to the coolant storage tank, so that the used coolant can be reused.

  In this case, after the cooling liquid in the cleaning tank is collected in the cooling liquid storage tank, the cleaning liquid supply step of supplying the cleaning liquid heated in at least one of the cleaning liquid storage tank and the cleaning liquid supply system from the cleaning liquid storage tank to the cleaning tank It is preferable to provide.

  According to this configuration, after the cooling liquid in the cleaning tank is collected in the cooling liquid storage tank, the cleaning liquid heated in at least one of the cleaning liquid storage tank and the cleaning liquid supply system is supplied from the cleaning liquid storage tank to the cleaning tank. be able to. When the cleaning is performed again, it is not necessary to heat the cleaning liquid, and the next cleaning object can be cleaned immediately.

  As another aspect of the cleaning method according to the present invention, it is preferable to include a cleaning liquid heating step for heating the cleaning liquid in the cleaning tank.

  According to such a configuration, the cleaning liquid in the cleaning tank can be heated, the cleaning target can be heated and cleaned, and the deposits attached to the cleaning target can be efficiently removed.

  As another aspect of the cleaning method according to the present invention, it is preferable to include a temperature adjustment step for maintaining the coolant in the coolant reservoir at room temperature or low temperature.

  According to such a configuration, the cooling liquid in the cooling liquid storage tank is maintained at room temperature or low temperature, so that even the used cooling liquid can be maintained at normal temperature or low temperature.

  As another aspect of the cleaning method according to the present invention, it is preferable to further include a steam recovery step of recovering the steam in the cleaning tank being cleaned and the steam in the cleaning liquid storage tank to the steam recovery tank.

  According to this configuration, the internal pressure of the cleaning tank and the cleaning liquid storage tank can be adjusted by collecting the steam in the cleaning tank being cleaned and the steam in the cleaning liquid storage tank.

  As another aspect of the cleaning method according to the present invention, the supply and discharge of fluid in at least one of the cleaning step, the cooling step, the coolant recovery step, and the vapor recovery step is performed by air pressure. It may be.

  According to this configuration, fluid supply and discharge in at least one of the cleaning process, the cooling process, the coolant recovery process, and the steam recovery process is performed by air pressure. The number of pumps used in the system can be reduced, and the configuration of the apparatus can be simplified.

  As described above, according to the present invention, it is possible to prevent the crystallization of the components of the cleaning liquid on the surface of the cleaning target after cleaning, the occurrence of thin film sticking and rusting, and the cooling time of the cleaning target after cleaning. It can be shortened, and the excellent effect of improving the efficiency of the cleaning operation can be obtained.

FIG. 1 is a front view showing a cleaning apparatus according to an embodiment of the present invention. FIG. 2 is a schematic configuration diagram of a cleaning apparatus showing one embodiment of the present invention. FIG. 3 is a schematic configuration diagram of a cleaning apparatus showing another embodiment of the present invention.

  Hereinafter, a cleaning apparatus and a cleaning method according to embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the cleaning apparatus according to the present embodiment can store the cleaning object A and can store the cleaning liquid B that cleans the cleaning object A, and the cleaning liquid B used for cleaning. Is a cleaning liquid discharge system 5 that connects the cleaning tank 2 and the cleaning liquid storage tank 3, and discharges the cleaning liquid B used in the cleaning liquid storage tank 3 from the cleaning tank 2. A cooling liquid storage tank 4 that can store a cooling liquid C at a temperature lower than that of the cleaning liquid B in the heated state and the same quality as the cleaning liquid B, and a cooling liquid supply system that connects the cleaning tank 2 and the cooling liquid storage tank 4 7 and a coolant supply system 7 for supplying the coolant C from the coolant storage tank 4 to the cleaning tank 2. The term “same quality” as used herein preferably means that the active ingredients have the same chemical composition.

  The cleaning apparatus 1 according to the present embodiment includes a cleaning liquid supply system 6 that connects the cleaning tank 2 and the cleaning liquid storage tank 3, and includes a cleaning liquid supply system 6 that supplies the cleaning liquid B from the cleaning liquid storage tank 3 to the cleaning tank 2. .

  The cleaning apparatus 1 according to the present embodiment is a coolant recovery system 8 that connects a cleaning tank 2 and a coolant storage tank 4, and stores the coolant C supplied to the cleaning tank 2 from the cleaning tank 2. A cooling liquid recovery system 8 is provided in the tank 4.

  The cleaning apparatus 1 according to the present embodiment connects the steam ST in the cleaning tank 2 and the steam recovery tank 9 in which the steam ST in the cleaning liquid storage tank 3 is recovered, and the cleaning tank 2 and the steam recovery tank 9. A first steam recovery system 10 and a second steam recovery system 11 that connects the cleaning liquid storage tank 3 and the steam recovery tank 9 are provided.

  Although not shown, the cleaning liquid discharge system 5 from the cleaning tank 2 to the cleaning liquid storage tank 3, the cleaning liquid supply system 6 from the cleaning liquid storage tank 3 to the cleaning tank 2, and the cooling from the cooling liquid storage tank 4 to the cleaning tank 2. In the liquid supply system 7 and the coolant recovery system 8 from the cleaning tank 2 to the coolant storage tank 4, a strainer or a filter is appropriately disposed.

  The cleaning tank 2, the cleaning liquid storage tank 3, the cooling liquid storage tank 4, and the steam recovery tank 9 are arranged in a frame with casters (not shown) and are configured as one cleaning machine.

  The cleaning tank 2 is made of stainless steel and has an opening 2a on the upper surface. The opening 2 a is sealed with a lid 20. Further, a temperature sensor S that detects the temperature of the cleaning liquid B and a float switch F that detects the amount of the cleaning liquid B are disposed in the cleaning tank 2. A heater H as a heating means for heating the cleaning liquid B is disposed at the bottom of the cleaning tank 2.

  On the side wall of the cleaning tank 2, a second pipe 61 of the cleaning liquid supply system 6 to which the cleaning liquid B from the cleaning liquid storage tank 3 is supplied, and a second cooling liquid supply pipe to which the cooling liquid C is supplied from the cooling liquid storage tank 4. 71 are connected side by side.

  The cleaning tank 2 can be immersed in the cleaning liquid B together with the cleaning object A and the cleaning basket 17 in which the cleaning target A is disposed. The cleaning basket 17 is made of metal, and a mold A is disposed as a cleaning target. Further, the cleaning basket 17 is immersed in the cleaning liquid B in the cleaning tank 2.

  In the cleaning liquid storage tank 3, a float switch F that detects the amount of the cleaning liquid B is disposed.

  A float switch F that detects the amount of the coolant C is disposed in the coolant reservoir 4.

  The steam recovery tank 9 includes a float switch F that detects the amount of liquid condensed from the steam ST.

  The cleaning liquid discharge system 5 includes a discharge pipe 50 that connects the cleaning tank 2 and the cleaning liquid storage tank 3, and a motor-operated valve V is provided in the discharge pipe 50.

  The cleaning liquid supply system 6 includes a first pump P1 disposed between the cleaning tank 2 and the cleaning liquid storage tank 3, a first pipe 60 that connects the cleaning liquid storage tank 3 and the water supply port of the first pump P1, A second pipe 61 connecting the discharge port of one pump P1 and the cleaning tank 2 is provided. The second pipe 61 is provided with an electric valve V.

  The cooling liquid supply system 7 connects the second pump P2 for supplying and discharging the cooling liquid C between the cleaning tank 2 and the cooling liquid storage tank 4, and the water supply port of the cooling liquid storage tank 4 and the second pump P2. And a coolant second supply pipe 71 for connecting the discharge port of the second pump P2 and the cleaning tank 2 to each other. The coolant second supply pipe 71 is provided with an electric valve V.

  The coolant recovery system 8 connects the coolant recovery first pipe 80 that connects the cleaning tank 2 and the recovery inlet port of the second pump P2, and the recovery outlet port of the second pump P2 and the coolant storage tank 4. And a coolant recovery second pipe 81. The coolant recovery second pipe 81 is provided with an electric valve V.

  The first pump P1 and the second pump P2 are both spiral pumps.

  The first steam recovery system 10 includes a steam recovery pipe 100 that connects the cleaning tank 2 and the steam recovery tank 9.

  The second steam recovery system 11 includes a second steam recovery pipe 110 that connects the cleaning liquid storage tank 3 and the steam recovery tank 9.

  As the cleaning liquid B, silicate (sodium metasilicate, sodium orthosilicate, or the like), sodium hydroxide, potassium hydroxide, or the like is used. Further, the cleaning liquid B is supplied to the cleaning tank 2 to a predetermined level according to the amount of the mold that is the cleaning object.

  The temperature sensor S detects the temperature of the cleaning liquid B during preheating and heat cleaning.

  The float switch F detects the amount of the cleaning liquid B or the cooling liquid C in the cleaning tank 2, the cleaning liquid storage tank 3, the cooling liquid storage tank 4, and the steam recovery tank 9. Specifically, the amount of the cleaning liquid B or the cooling liquid C that has reached the upper limit value and the lower limit value is detected in the cleaning tank 2, the cleaning liquid storage tank 3, the cooling liquid storage tank 4, and the steam recovery tank 9.

  Moreover, the cleaning apparatus 1 according to the present embodiment includes a control device (not shown). The temperature, the amount of liquid, the set preheating temperature and heating temperature, and the set cleaning time are input to the control device. In addition, the control device controls the temperature of the cleaning liquid B in the cleaning liquid preheating process and the heating cleaning process, discharges the cleaning liquid B from the cleaning tank 2 after the set cleaning time has elapsed, and discharges the cleaning liquid B that has been heated and cleaned. Thereafter, a cooling process for supplying the cooling liquid C to cool the object A to be cleaned, a cooling liquid recovery process, a steam recovery process for recovering the steam being cleaned, and the like are programmed smoothly.

  Next, a cleaning method (operation by a program) using the cleaning apparatus will be described. The cleaning method includes a cleaning liquid preheating process, a heating cleaning process (cleaning process), a cleaning liquid discharge process, a cooling process, and a cooling liquid recovery process.

  Further, the cleaning method according to the present embodiment further includes a steam recovery step of recovering the steam in the cleaning tank 2 and the steam in the cleaning liquid storage tank 3 during cleaning.

  In the cleaning liquid preheating process, the cleaning liquid B is supplied to the cleaning liquid storage tank 3 via the cleaning tank 2 and the discharge pipe 50 (cleaning liquid supply process), and the supplied cleaning liquid B is preheated by the heating means (heater) H of the cleaning tank 2. (Cleaning liquid heating step). Specifically, the first pump P1 is activated, and the cleaning liquid B is supplied from the cleaning liquid storage tank 3 to the cleaning tank 2 via the first pipe 60, the first pump P1, and the second pipe 61, and the cleaning tank 2 The heater H is energized, and preheating of the cleaning liquid B is started. Then, when the temperature of the cleaning liquid B reaches a set temperature (70 ° C. to 85 ° C.), the energization to the heater H is stopped. That is, the cleaning liquid preheating step is completed.

  In the heating cleaning process, the cleaning object A is immersed in the preheated cleaning liquid B, and the cleaning liquid B and the cleaning object A are heated to the set heating temperature by the heating means H, so that the cleaning object A is cleaned. Is done. Specifically, the operator places the object to be cleaned (mold) A in the cleaning basket 17, opens the lid 20 of the cleaning tank 2, and cleans the mold A in the cleaning liquid B of the cleaning tank 2. Immerse the basket 17. Next, the operator sets the heat cleaning temperature and sets the heat cleaning time. Thereafter, when the operator locks the lid 20 of the cleaning tank 2, cleaning by heating the cleaning liquid B is started. As a result, the temperature of the cleaning liquid B reaches the set heat cleaning temperature, and when the set heat cleaning time has elapsed, the process proceeds to the cleaning liquid discharge step.

  In the cleaning liquid discharge step, after the heat cleaning, the cleaning liquid discharge system 5 is opened, and the cleaning tank 2 and the cleaning liquid storage tank 3 are communicated. Specifically, the motor-operated valve V of the discharge pipe 50 is opened, and the cleaning liquid B used for cleaning is discharged from the cleaning tank 2 to the cleaning liquid storage tank 3 through the discharge pipe 50. The completion of the discharge of the cleaning liquid B is detected by the float switch F.

  In addition, a steam recovery process is performed during cleaning. Specifically, at the time of heat cleaning, the steam ST in the cleaning tank 2 is recovered in the steam recovery tank 9 via the first steam recovery pipe 100, and after the heated cleaning liquid moves to the cleaning liquid storage tank 3, the cleaning liquid is stored. The steam ST in the tank 3 is recovered in the steam recovery tank 9 via the second steam recovery pipe 110. Thereby, the pressure inside cleaning tank 2 and cleaning liquid storage tank 3 can be adjusted. The recovered steam ST is condensed and stored in the steam recovery tank 9.

  Next, the cleaning liquid discharge process is completed, and the process proceeds to the cooling process. In the cooling step, after the opened cleaning liquid discharge system 5 is closed, the cooling liquid supply system 7 is opened to allow the cooling liquid storage tank 4 and the cleaning tank 2 to communicate with each other. Specifically, after the discharge of the cleaning liquid B used for cleaning is completed, the cooling liquid C lower in temperature than the cleaning liquid B is gradually supplied from the lower side of the cleaning tank 2 to the cleaning tank 2 from the cooling liquid storage tank 4. The heated washing tank 2, the washing basket 17, and the washing object A are cooled. Specifically, when the completion of the discharge of the cleaning liquid B used for cleaning from the cleaning tank 2 is detected by the float switch F, the motor-operated valve V of the discharge pipe 50 is closed. Next, the second pump P <b> 2 is driven, and the supply of the cooling liquid C from the cooling liquid storage tank 4 to the cleaning tank 2 via the cooling liquid supply pipe 70 is started.

  When a predetermined amount of the cooling liquid C is supplied from the cooling liquid storage tank 4, the cooling process is completed, the lid 20 of the cleaning tank 2 is unlocked, and the cleaning object A can be taken out from the cleaning tank 2. Become.

  In the coolant recovery process, the motor-operated valve V of the coolant recovery second pipe 81 is opened, and the coolant C is cooled via the coolant recovery first pipe 80, the second pump P2, and the coolant recovery second pipe 81. It is recovered in the liquid storage tank 4. Thereby, the cleaning object A can be taken out from the cleaning tank 2. Since the temperature of the cleaning object A in the cleaning tank 2 can be lowered by supplying a cooling liquid C of the same quality as the cleaning liquid B, crystallization of components of the cleaning liquid B on the surface of the cleaning object A, thin-film adhesion and rusting Occurrence can be prevented.

  In addition, when repeated washing | cleaning is required by the kind of deposit | attachment, the shape of the cleaning target A, etc., or when cleaning the new cleaning target A, it carries out sequentially from a preheating process.

  Thus, according to the cleaning apparatus according to the present embodiment, crystallization of components of the cleaning liquid B on the surface of the cleaning target A after cleaning, thin film-like fixing and generation of rust are prevented, and cleaning after cleaning is performed. The cooling time of the object A can be shortened, and the efficiency of the cleaning operation can be improved.

  In addition, this invention is not limited to the said embodiment, Of course, it can add suitably in the range which does not deviate from the summary of this invention.

  For example, in the case of the above embodiment, the cooling liquid C is gradually supplied from the lower side of the cooling liquid storage tank 4, but the cleaning object A directly depends on the number, size, and shape of the cleaning object A. It may be sprayed using a supply means such as a shower or spray, or may be gradually supplied.

  Moreover, in the case of the said embodiment, although the heating means H was arrange | positioned at the bottom part of the washing tank 2, you may make it arrange | position in the washing | cleaning liquid supply system 6. FIG. After the cooling liquid C in the cleaning tank 2 is collected in the cooling liquid storage tank 4, at least one of the heated cleaning liquids B can be supplied from the cleaning liquid storage tank 3 to the cleaning tank 2. When washing again, it can be washed immediately without the need for heating.

  In the case of the embodiment, the cleaning liquid storage tank 3 storing the cleaning liquid B from the cleaning tank 2 is used. Good. Further, the heating means H may be arranged in the cleaning liquid storage tank 3.

  Further, in the case of the embodiment, the cooling liquid storage tank 4 stores the cooling liquid C at a temperature lower than the cleaning liquid B of the cleaning liquid storage tank 3, but the cooling liquid C is supplied to the cooling liquid storage tank 4. A temperature adjustment unit Tc such as a Peltier element or a cooling fan that is maintained at a normal temperature or a low temperature may be directly or indirectly arranged (a temperature adjustment step may be included). More specifically, in the case of a Peltier element, it is arranged directly on the side wall (bottom wall) of the coolant reservoir 4. In the case of a cooling fan, the temperature adjusting unit Tc is indirectly arranged at a predetermined interval with respect to the side wall of the coolant storage tank 4. Thereby, the internal coolant C is maintained at normal temperature or low temperature via the coolant reservoir 4 (see FIG. 1). In addition, normal temperature here is 15-30 degreeC, and low temperature is 10-15 degreeC.

  In the case of the above embodiment, the cleaning method using the cleaning device 1 is realized by a program. However, instead of using the motor-operated valve V, it may be achieved by using a manual valve.

  Moreover, in the case of the said embodiment, although the pump was used in the case of the transfer of a fluid, you may make it transfer a fluid by air pressure by fluid supply means, such as a compressor. This cleaning apparatus will be described below with reference to FIGS. 2 and 3, the same reference numerals as those in FIG. 1 denote the same or corresponding parts.

  For example, the supply and discharge of fluid in the cleaning liquid discharge system 5A that discharges the cleaning liquid from the cleaning tank 2 to the cleaning liquid storage tank 3 and the cleaning liquid supply system 6A that supplies the cleaning liquid from the cleaning liquid storage tank 3 to the cleaning tank 2 are performed by air pressure. In the cleaning apparatus 1A, as shown in FIG. 2, an air pressure supply system 12, a cleaning liquid discharge system 5A, a cleaning liquid supply system 6A, a cooling liquid supply system 7A, a cooling liquid recovery system 8A, and a steam recovery system 10A Is provided.

  The pneumatic supply system 12 includes a pneumatic supply pipe 120 that connects a fluid supply source (not shown) and the cleaning liquid storage tank 3. The pneumatic supply pipe 120 includes a regulator 121 with a gauge for supplying air from a fluid supply source, and an electromagnetic valve for circulating the air disposed on the outlet side of the regulator 121 via a filter 122. 123 and a check valve 124 disposed on the outlet side of the solenoid valve 123. The cleaning liquid storage tank 3 is provided with a relief valve 125 as an air pressure discharge system that controls the pressure in the cleaning liquid storage tank 3.

  The cleaning liquid discharge system 5 </ b> A includes a cleaning liquid discharge pipe 50 </ b> A that connects the cleaning tank 2 and the cleaning liquid storage tank 3.

  The cleaning liquid supply system 6 </ b> A includes a supply pipe 60 </ b> A that connects the cleaning tank 2 and the cleaning liquid storage tank 3.

  The coolant supply system 7A connects the coolant supply pump P3 for supplying the coolant C from the coolant storage tank 4 to the cleaning tank 2, and the coolant supply tank 4 and the water supply port of the coolant supply pump P3. A coolant first supply pipe 70A and a coolant second supply pipe 71A for connecting the discharge port of the coolant supply pump P3 and the cleaning tank 2 are provided.

  The coolant recovery system 8A includes a coolant recovery first pipe 80A that connects a coolant recovery pump P4 that transfers the coolant from the cleaning tank 2 to the coolant storage tank 4 and a recovery inlet port of the coolant recovery pump P4. And a coolant recovery second pipe 81A for connecting the recovery outlet port of the coolant recovery pump P4 and the coolant storage tank 4.

  The steam recovery system 10 </ b> A includes a steam recovery pipe 100 </ b> A that connects the cleaning tank 2 and the steam recovery tank 9.

  The coolant supply pump P3 and the coolant recovery pump P4 are both vortex pumps.

  In the case of the cleaning device, first, air is supplied from the air pressure supply system 12. Specifically, the air supplied from the regulator 121 with a gauge is supplied to the cleaning liquid storage tank 3 through the filter 122 and the electromagnetic valve 123 and the check valve 124. Then, the cleaning liquid B is supplied from the cleaning liquid storage tank 3 to the cleaning tank 2 via the supply pipe 60 </ b> A, and the cleaning liquid B is preheated until a predetermined temperature is reached by a heater (not shown) in the cleaning tank 2.

  Next, the cleaning object A is immersed in the preheated cleaning liquid B, and the cleaning liquid B and the cleaning object A are heated to the set heating temperature by the heater, and the cleaning object A is cleaned. Thereafter, the cleaning liquid B used for cleaning is discharged from the cleaning tank 2 to the cleaning liquid storage tank 3 through the cleaning liquid discharge pipe 50A.

  On the other hand, during the heat cleaning, the steam ST in the cleaning tank 2 is recovered in the steam recovery tank 9 via the steam recovery pipe 100A, and the pressure inside the cleaning tank 2 can be adjusted. The recovered steam ST is condensed and stored in the steam recovery tank 9.

  Next, after the cleaning liquid used for cleaning is discharged, the opened cleaning liquid discharge system 5A is closed and the cooling liquid supply system 7A is opened, so that the temperature of the cooling liquid storage tank 4 is lower than that of the cleaning liquid B. The cooling liquid C is supplied, and the heated cleaning tank 2 and the cleaning object A are cooled.

  Next, the coolant C is recovered in the coolant storage tank 4 via the coolant recovery first piping 80A, the coolant recovery pump P4, and the coolant recovery second piping 81A.

  As described above, in the cleaning apparatus shown in FIG. 2, the number of circulating pumps having a large flow rate can be reduced, so that the configuration of the entire apparatus can be simplified and the manufacturing process of the apparatus can be simplified.

  Also, a cleaning liquid discharge system 5B that discharges the cleaning liquid from the cleaning tank 2 to the cleaning liquid storage tank 3, a cleaning liquid supply system 6B that supplies the cleaning liquid from the cleaning liquid storage tank 3 to the cleaning tank 2, and a cooling liquid storage tank 4 to the cleaning tank 2 The coolant supply system 7B for supplying the coolant C and the coolant recovery system 8B for recovering the coolant C supplied to the cleaning tank 2 from the cleaning tank 2 to the coolant storage tank 4 are emptied. As shown in FIG. 3, the cleaning apparatus 1 </ b> B using pressure includes a plurality (three in this embodiment) of pneumatic supply systems 12 to 14, a cleaning liquid discharge system 5 </ b> B, a cleaning liquid supply system 6 </ b> B, and a cooling liquid supply system. 7B and a coolant recovery system 8B.

  The first pneumatic supply system 12 includes a first pneumatic supply pipe 120 that connects a fluid supply source (not shown) and the cleaning liquid storage tank 3. In the first pneumatic supply pipe 120, a regulator 121 with a gauge for supplying air from a fluid supply source, and an electromagnetic for circulating air disposed on the outlet side of the regulator 121 via a filter 122. A valve 123 and a check valve 124 disposed on the outlet side of the electromagnetic valve 123 are provided.

  The second pneumatic supply system 13 includes a second pneumatic supply pipe 130 that is branched and connected to the first pneumatic supply pipe 120 and connected to the coolant storage tank 4. The second pneumatic supply pipe 130 is provided with an electromagnetic valve 131 and a check valve 132.

  The third pneumatic supply system 14 includes a third pneumatic supply pipe 140 that is branched and connected to the first pneumatic supply pipe 120 and connected to the cleaning tank 2. The third pneumatic supply pipe 140 is provided with an electromagnetic valve 141 and a check valve 142.

  In addition, each of the cleaning tank 2, the cleaning liquid storage tank 3, and the cooling liquid storage tank 4 has a relief as an air pressure discharge system that controls the pressure in the cleaning tank 2, the cleaning liquid storage tank 3, and the cooling liquid storage tank 4. Valves 125, 133 and 143 are provided. Further, the coolant storage tank 4 is provided with a drain pipe 40 and a drain valve 41.

  The cleaning liquid discharge system 5 </ b> B includes a cleaning liquid discharge pipe 50 </ b> B that connects the cleaning tank 2 and the cleaning liquid storage tank 3. The discharge pipe 50B is provided with two motor-operated valves V1 and V2 for discharging the cleaning liquid.

  The cleaning liquid supply system 6 </ b> B includes a cleaning liquid supply pipe 60 </ b> B that connects the cleaning tank 2 and the cleaning liquid storage tank 3. An electric valve V3 is provided in the cleaning liquid supply pipe 60B.

  The coolant supply system 7 </ b> B includes a coolant supply pipe 70 </ b> B that connects the cleaning tank 2 and the coolant storage tank 4. The coolant supply pipe 70B is provided with an electric valve V4.

  The coolant recovery system 8B includes a first coolant recovery pipe 80B connected to the cleaning tank 2, and a second coolant recovery pipe 82B connecting the first coolant recovery pipe 80B and the coolant storage tank 4. . The first coolant recovery pipe 80B is provided with an electric valve V5 and a drain valve 81B. The second coolant recovery pipe 82B is provided with an electric valve V6.

  The steam recovery system 10 </ b> B includes a steam recovery pipe 100 </ b> B that connects the cleaning tank 2 and the steam recovery tank 9. The steam recovery tank 9 is provided with a drain pipe 90 and a drain valve 91. The steam recovery pipe 100B is provided with an electric valve V7.

  In the case of the cleaning apparatus 1 </ b> B, first, air is supplied from the first pneumatic supply system 12. Specifically, the air supplied to the regulator 121 with gauge is supplied to the cleaning liquid storage tank 3 through the filter 122 through the electromagnetic valve 123 and the check valve 124. Then, the cleaning liquid is supplied from the cleaning liquid storage tank 3 to the cleaning tank 2 via the cleaning liquid supply pipe 60B and the electric valve V3, and the cleaning liquid is preheated until a predetermined temperature is reached by a heater (not shown) in the cleaning tank 2. The

  Next, the cleaning object is immersed in the preheated cleaning liquid, and the cleaning liquid and the cleaning object are heated to the set heating temperature by the heater, and the cleaning object is cleaned.

  Thereafter, the two motor-operated valves V1 and V2 are opened, and the cleaning liquid used for cleaning is discharged from the cleaning tank 2 to the cleaning liquid storage tank 3 via the cleaning liquid discharge pipe 50B.

  On the other hand, at the time of heat cleaning, the steam ST in the cleaning tank 2 is recovered in the steam recovery tank 9 via the electric valve V7 and the steam recovery pipe 100B. Specifically, the recovered steam is condensed and stored in the steam recovery tank 9, and the stored water is drained to the outside through the drain pipe 90 and the drain valve 91.

  Next, after the cleaning liquid used for the cleaning is discharged through the cleaning liquid discharge system 5B, the opened cleaning liquid discharge system 5B is closed, and the cooling liquid supply system 7B is opened. Specifically, the motor-operated valve V4 is opened so that the coolant can be supplied to the cleaning tank 2 from the coolant supply pipe 70B. Next, air pressure is supplied from the second air pressure supply system 13. Specifically, air pressure is supplied to the coolant reservoir 4 through the electromagnetic valve 131 and the check valve 132. As a result, the cooling liquid C lower in temperature than the cleaning liquid is supplied from the cooling liquid storage tank 4 to the cleaning tank 2 via the cooling liquid supply pipe 70B and the electric valve V4, and the heated cleaning tank 2 and the object to be cleaned are cooled. Is done.

  Next, with the drain valve 81B closed, the coolant C is recovered in the coolant storage tank 4 via the electric valve V5, the first coolant recovery pipe 80B, the second coolant recovery pipe 82B, and the motor valve V6. Is done.

  As described above, in the cleaning apparatus shown in FIG. 3, since a circulation pump having a large flow rate can be eliminated, the configuration of the entire apparatus can be further simplified and the manufacturing process of the apparatus can be further simplified.

  DESCRIPTION OF SYMBOLS 1,1A, 1B ... Cleaning apparatus, 2 ... Cleaning tank, 3 ... Cleaning liquid storage tank, 4 ... Cooling liquid storage tank, 5, 5A, 5B ... Cleaning liquid discharge system, 6, 6A, 6B ... Cleaning liquid supply system, 7, 7A , 7B ... Coolant supply system, 8, 8A, 8B ... Coolant recovery system, 9 ... Steam recovery tank, 10 ... First steam recovery system, 11 ... Second steam recovery system, 10A, 10B ... Steam recovery system, 12 -14 ... Air pressure supply system, A ... Object to be cleaned (mold), B ... Cleaning liquid, C ... Coolant, F ... Float switch, H ... Heating part (heater), S ... Temperature sensor, ST ... Steam, Tc ... Temperature adjuster, V1-V7 ... Motorized valve

Claims (14)

A cleaning tank capable of storing a cleaning object and storing a cleaning liquid in a heated state for cleaning the cleaning object;
A cleaning liquid storage tank capable of storing the cleaning liquid used for cleaning; and
A cleaning liquid discharge system for connecting the cleaning tank and the cleaning liquid storage tank, and a cleaning liquid discharge system for discharging the cleaning liquid used for cleaning from the cleaning tank to the cleaning liquid storage tank,
A cooling liquid storage tank capable of storing a cooling liquid having a temperature lower than that of the cleaning liquid in the heating state and the same quality as the cleaning liquid in the heating state;
A cooling liquid supply system for connecting the cleaning tank and the cooling liquid storage tank, comprising a cooling liquid supply system for supplying the cooling liquid from the cooling liquid storage tank to the cleaning tank,
After cleaning the object to be cleaned with the cleaning liquid in the cleaning tank, the cleaning liquid used for cleaning can be discharged from the cleaning tank to the cleaning liquid storage tank via the cleaning liquid discharge system, and the cooling liquid can be cooled via the cooling liquid supply system. A cleaning apparatus configured to be supplied from a storage tank to a cleaning tank. A cooling liquid recovery system for connecting the cleaning tank and the cooling liquid storage tank, comprising a cooling liquid recovery system for recovering the cooling liquid supplied to the cleaning tank from the cleaning tank to the cooling liquid storage tank,
The cleaning apparatus according to claim 1, wherein after the object to be cleaned in the cleaning tank is cooled, the cooling liquid in the cleaning tank can be collected in the cooling liquid storage tank. A cleaning liquid supply system that connects the cleaning tank and the cleaning liquid storage tank, and includes a cleaning liquid supply system that supplies the cleaning liquid from the cleaning liquid storage tank to the cleaning tank,
At least one of the cleaning liquid storage tank and the cleaning liquid supply system is configured to be able to heat the cleaning liquid, and after the cooling liquid in the cleaning tank is collected in the cooling liquid storage tank, at least one of the cleaning liquid storage tank and the cleaning liquid supply system The cleaning apparatus according to claim 1 or 2, wherein the cleaning liquid heated in step (b) is configured to be supplied from the cleaning liquid storage tank to the cleaning tank.   The cleaning apparatus according to any one of claims 1 to 3, further comprising a heating unit disposed in the cleaning tank.   The cleaning apparatus according to any one of claims 1 to 3, further comprising a temperature adjusting unit that maintains the cooling liquid in the cooling liquid storage tank at a normal temperature or a low temperature. A steam recovery tank in which the steam in the cleaning tank and the steam in the cleaning liquid storage tank are recovered; a first steam recovery system that connects the cleaning tank and the steam recovery tank;
A second steam recovery system for connecting the cleaning liquid storage tank and the steam recovery tank;
The cleaning apparatus according to any one of claims 1 to 5, wherein the cleaning apparatus is configured to collect steam in the cleaning tank being cleaned and steam in the cleaning liquid storage tank.   The fluid in at least one of the cleaning liquid discharge system, the cooling liquid supply system, the cooling liquid recovery system, the cleaning liquid supply system, the first steam recovery system, and the second steam recovery system is pneumatically compressed. The cleaning apparatus according to claim 6, further comprising a pneumatic supply / discharge system for supplying and discharging. The cleaning apparatus according to any one of claims 1 to 7,
A cleaning step of cleaning the object to be cleaned with a heated cleaning liquid in the cleaning tank;
After the cleaning process, a cleaning liquid discharging process for discharging the cleaning liquid used for cleaning from the cleaning tank to the cleaning liquid storage tank;
A cooling step of cooling the cleaning object by supplying a cooling liquid having a temperature lower than that of the heated cleaning liquid and the same quality as the heated cleaning liquid after the cleaning liquid discharging step. Cleaning method.   The cleaning method according to claim 8, further comprising a cooling liquid recovery step of recovering the cooling liquid in the cleaning tank from the cleaning tank to the cooling liquid storage tank after the cooling process.   After the cooling liquid in the cleaning tank is collected in the cooling liquid storage tank, a cleaning liquid supply step of supplying the cleaning liquid heated in at least one of the cleaning liquid storage tank and the cleaning liquid supply system from the cleaning liquid storage tank to the cleaning tank is provided. The cleaning method according to claim 8 or 9, wherein:   The cleaning method according to any one of claims 8 to 10, further comprising a cleaning liquid heating step of heating the cleaning liquid in the cleaning tank.   The cleaning method according to any one of claims 8 to 11, further comprising a temperature adjusting step of maintaining the coolant in the coolant reservoir at room temperature or low temperature.   The cleaning method according to any one of claims 8 to 12, further comprising a steam recovery step of recovering the steam in the cleaning tank being cleaned and the steam in the cleaning liquid storage tank to the steam recovery tank.   The fluid supply and discharge in at least one of the washing step, the cooling step, the coolant recovery step, and the vapor recovery step are performed by air pressure. The cleaning method described.

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