JP2016211034A - Metal cleaning device and method for cleaning metal matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal cleaning device, while preventing the sticking and oxidation of the containing components of a cleaning liquid to a metal matter, capable of attaining the increase of the cleaning operation for the metal matter.SOLUTION: Provided is a metal cleaning device comprising: a container body having an inflow part into which a cleaning liquid is made to flow and an introduction part into which a metal is introduced, and composed so as to be storable in a state where a cleaning liquid is storable and a metal matter is immersed into the cleaning liquid; a cleaning tank composed so as to store the cleaning liquid and further composed so as to store a container body; a heating means of heating the cleaning liquid in the cleaning tank; and an elevating means of elevating the container body between the lower limit position in which at least the inflow part of the container body is made the location lower than the liquid face of the cleaning liquid in the cleaning tank and the upper limit position in which at least the inflow part of the container body is made the position higher than the liquid face of the cleaning liquid in the cleaning tank.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a metal object cleaning apparatus and a metal object cleaning method for cleaning a metal object such as a processing tool or a product and removing an adhering substance adhering to the metal object.

  Metal processing tools (eg, molds, hand-held tools, etc.) used in the product manufacturing process, and metal products obtained through the manufacturing process (eg, iron balls, steel balls, rings, etc. as bearing parts) In some cases, a resin used in the manufacturing process, an oil used for equipment maintenance, a rust preventive agent, or the like may adhere to a metal object such as a metal.

  Under such circumstances, in order to maintain the performance of the processing tool and improve the quality of the metal product, the metal object cleaning device (hereinafter simply referred to as “cleaning device” for cleaning the metal object and removing the adhering matter attached to the metal object). A cleaning device) is provided.

  This type of cleaning apparatus includes a cleaning tank that can accommodate a metal object and store a cleaning liquid (for example, an alkaline cleaning liquid). In addition, this type of cleaning apparatus includes a heating unit that brings the cleaning liquid stored in the cleaning tank into a high-temperature state (for example, around 90 ° C.) in order to improve the cleaning performance of the cleaning liquid.

  Such a cleaning apparatus heats the cleaning liquid in the cleaning tank until it reaches a high temperature state by a heating means, and then immerses the metal object in the high temperature cleaning liquid for a predetermined time, thereby cleaning the metal object. ing.

  By the way, when a metal object is immersed in the heated cleaning liquid (cleaning liquid in a high temperature state), the metal object also becomes high temperature. Therefore, if the metal object is taken out from the cleaning liquid immediately after cleaning, the cleaning liquid adhering to the metal object evaporates due to the heat effect of the metal object that has become hot, and the components contained in the cleaning liquid crystallize and adhere to the surface of the metal object. Resulting in.

  Considering this point, it may be possible to remove the cleaning liquid adhering to the metal object by washing the metal object with water immediately after the metal object is taken out of the cleaning liquid in a high temperature state. Then, the surface of a metal object will be oxidized by the influence of rapid cooling, water, and the dissolved oxygen contained in water.

  For these reasons, this type of cleaning apparatus is capable of taking out a metal object from the cleaning liquid when the cleaning liquid is changed from a high temperature state to a low temperature state (for example, about normal temperature) after completion of the cleaning of the metal object.

Japanese Patent Laid-Open No. 11-90937

  However, it takes a long time for the cleaning liquid in a high temperature state to become a low temperature state (about room temperature). In addition, when starting the cleaning of another metal object, the cleaning liquid cooled to a low temperature state must be reheated to a high temperature, which also takes a long time.

  That is, the cleaning device having the above-described configuration requires a long time for cooling and heating the cleaning liquid, and the cleaning process for one metal object is prolonged.

  As a result, the conventional cleaning apparatus has a problem that the number of metal objects that can be cleaned within the actual working time is small, and the work efficiency in the metal object cleaning operation is poor.

  Accordingly, the present invention provides a metal object cleaning apparatus and a metal object cleaning method capable of improving the efficiency of metal object cleaning operations while preventing the components and components of the cleaning liquid from adhering to the metal object from being fixed. Is an issue.

  The metal object cleaning apparatus according to the present invention has an inflow part for introducing a cleaning liquid and an introduction part for introducing a metal object, and is configured to store the cleaning liquid and can be accommodated in a state where the metal object is immersed in the cleaning liquid. A container body configured to be capable of storing a cleaning liquid and configured to accommodate the container body, a heating means for heating the cleaning liquid in the cleaning tank, and at least an inflow portion of the container body being cleaned Elevating means for raising and lowering the container body between a lower limit position where the level is below the liquid level of the cleaning liquid in the tank and an upper limit position where at least the inflow part of the container body is higher than the liquid level of the cleaning liquid in the cleaning tank; It is characterized by providing.

  According to the cleaning apparatus having the above configuration, the cleaning liquid in the cleaning tank is heated to a high temperature by the heating means. Then, in a state where the cleaning liquid is at a high temperature, the container body containing the metal object is lowered from the upper limit position to the lower limit position by the elevating means, so that the container body is immersed in the cleaning liquid in the cleaning tank (lower limit). Placed in position). As a result, the inflow part of the container body is positioned below the level of the cleaning liquid in the cleaning tank, the high temperature cleaning liquid in the cleaning tank flows from the inflow part of the container body, and the metal in the container body is also hot. Immerse in the cleaning solution.

  Therefore, the metal object is cleaned by immersing the container body in the cleaning liquid for a predetermined time, and the deposits attached to the metal object are removed.

  Then, in the state where the cleaning of the metal object is completed, the container body is moved up to the upper limit position above the liquid level of the cleaning liquid in the cleaning tank by the elevating means. The upper limit position is reached in a state in which a metal object is immersed in the cleaning liquid while storing the cleaning liquid flowing in.

  In this way, the container body that has reached the upper limit position is placed in a room temperature environment away from the heating environment by the heating means, and the cleaning liquid in the container body is cooled in a state that does not affect the cleaning liquid in the cleaning tank. It becomes possible. Thereby, the cleaning apparatus having the above-described configuration can take out the metal object without crystallizing the components contained in the cleaning liquid on the surface of the metal object or oxidizing the surface of the metal object.

  On the other hand, since the cleaning liquid in the cleaning tank is heated by the heating means, the high temperature state is maintained and the metal object can be cleaned. Thereby, the metal object washing | cleaning apparatus of the said structure can start the washing | cleaning of another metal object immediately, without waiting for cooling and heating of the washing | cleaning liquid in a washing tank.

  As one aspect of the present invention, a cooling means for cooling the cleaning liquid in the container in the upper limit position may be further provided. In this way, the cleaning liquid in which the metal object is immersed is forcibly cooled by the cooling means, so that the metal object is cooled in a short time while maintaining a wet state with the cleaning liquid. Therefore, the metal object can be taken out in a short time.

  As another aspect of the present invention, the cooling means includes a cooling liquid storage section capable of storing a cooling liquid having a temperature lower than that of the cleaning liquid heated in the cleaning tank and the same quality as the cleaning liquid, and a cooling liquid stored in the cooling liquid storage section And a coolant supply system for supplying the liquid into the container in the upper limit position. In this way, the cooling liquid stored in the cooling liquid storage section (cooling liquid having a lower temperature than the cleaning liquid heated in the cleaning tank and the same quality as the cleaning liquid) is cooled in the container body storing the heated cleaning liquid. It is supplied via a liquid supply system. As a result, a cooling liquid having a temperature lower than that is added to the cleaning liquid in a high temperature state, and the temperature of the cleaning liquid in the container (strictly, a mixed liquid of the cleaning liquid and the cooling liquid) is lowered. As a result, the metal object immersed in the cleaning liquid in the container is forcibly cooled in a short time. Further, since the cooling liquid is the same quality as the cleaning liquid, alteration of the surface of the metal object is prevented.

  In this case, the position where the entire container body is disposed at a position higher than the level of the cleaning liquid in the cleaning tank is set as the upper limit position, and is below the upper limit position in the lifting path of the container body and is cleaned. A receiving liquid is provided for receiving the cleaning liquid discharged as an excess from the container body as the cooling liquid is supplied by the cooling means at a position above the liquid level of the cleaning liquid in the tank, and the receiving liquid cools the received cleaning liquid. It is preferable to be configured to be guided toward the liquid storage unit and to be retractable from the lifting / lowering path of the container body. In this way, in addition to cooling the cleaning liquid in the container body (supplying the cooling liquid into the container body), the cleaning liquid discharged in excess from the container body (the cleaning liquid in excess of the predetermined capacity) is received. It is received by the liquid and guided to the coolant storage part. As a result, the cleaning liquid and the cooling liquid are circulated between the container body and the cooling liquid reservoir, so that the cleaning liquid in the container body is cooled to become the cooling liquid in the circulation process. Accordingly, the cooling liquid for cooling the cleaning liquid in the container can be minimized. Further, the liquid receiving liquid is retracted from the lifting / lowering path of the container body, so that the lifting / lowering path of the container body is opened, and the lifting / lowering of the container body is allowed.

  The liquid-receiving liquid includes a pair of lid plates that are arranged side by side so that one ends thereof are opposed to each other in the ascending / descending path of the container body, and the pair of lid plates are relatively spaced apart at least when the container body is lifted / lowered. It is preferable to be configured to retract from the lifting path. If it does in this way, when a container body exists in an upper limit position, a pair of cover plates will intervene in the raising / lowering path of a container body. That is, a pair of cover plates are arranged side by side continuously below the container body at the upper limit position. Thus, the pair of lid plates reliably receive the cleaning liquid discharged as an excess from the container body. On the other hand, since the pair of cover plates are relatively separated from each other at the time of raising and lowering the container body and retracted from the raising and lowering path of the container body, the raising and lowering path of the container body is opened, and the raising and lowering of the container body is allowed. .

  In this case, the other end opposite to one end of each of the pair of cover plates is rotatable about an axis extending in a direction in which the pair of cover plates are arranged side by side and in a direction perpendicular to the lifting / lowering direction of the container body. While being supported, it is preferable that the liquid receiver includes an urging unit that applies a rotational force around the axis to the cover plate so that the ends of the pair of cover plates face each other. In this way, when the container body at the upper limit position descends, the container body pushes the pair of lid plates, and each of the pair of lid plates rotates with the other end portion as a rotation fulcrum, so that the one ends are connected to each other. Separate. That is, the posture of the pair of cover plates is changed so that one end is positioned below the other end. As a result, the pair of cover plates are retracted from the lifting path of the container body to open the lifting path, and the lifting and lowering of the container body is allowed. Then, when the container body at the lower limit position rises and reaches the upper limit position, the pair of cover plates return to a state where they are continuously arranged side by side by applying a rotational force to the cover plate by the urging means. That is, by the urging of the urging means, the pair of cover plates automatically return to a state where the cleaning liquid discharged as an excess from the container body can be reliably received.

  Further, the liquid receiver has a flange portion that is connected to one end of at least one lid plate, and the flange portion is configured to guide the cleaning liquid received by the pair of lid plates toward the coolant reservoir portion. May be. If it does in this way, the cooling fluid received by the receiving liquid will gather in a collar part, without spreading | diffusion, and will be guide | induced toward a cooling fluid storage part through this collar part. Thereby, since more cleaning liquid is collect | recovered by a cooling fluid storage part, a cleaning liquid can be utilized as a cooling liquid without waste.

  When the receiving liquid is provided in this way, the receiving liquid and the coolant storing part may be fluidly connected, and a connection channel for supplying the cleaning liquid received by the receiving liquid to the cooling liquid storing part may be further provided. In this way, since the receiving liquid and the coolant storing part are fluidly connected by the connection flow path, even if the cleaning liquid discharged as an excess from the container body is used as the cooling liquid, the receiving liquid is received. A degree of freedom can be given to the arrangement of the liquid and the coolant storing part.

  The container body preferably includes a container body capable of storing the cleaning liquid and capable of accommodating a metal object, and a heat radiation fin protruding from the outer surface of the container body. Thus, by providing a radiation fin, a surface area becomes large compared with the case where a container body is comprised only with a container main body. Accordingly, the area that comes into contact with the outside air in a state where the container body is at the upper limit position is widened. That is, as a result of increasing the heat dissipation efficiency by the container body, the stored cleaning liquid can be efficiently cooled.

  The method for cleaning a metal object according to the present invention has an inflow part for introducing a cleaning liquid and an introduction part for introducing a metal object, and the metal object is placed in a container body configured to be able to store the cleaning liquid and accommodate the metal object. A preparatory process for storing and immersing a container body containing a metal object in a high-temperature cleaning liquid stored in a cleaning tank, allowing the cleaning liquid to flow into the container body from an inflow portion, and immersing the metal object in the container body into the cleaning liquid And a container body moving step for moving the container body to a position where at least the inflow portion of the container body is higher than the liquid level of the cleaning liquid in the cleaning tank after the cleaning process.

  According to the cleaning method having the above configuration, in the preparation step, the metal object is accommodated in the container that can store the cleaning liquid. Then, in the cleaning step, the container body containing the metal object is immersed in a high-temperature cleaning liquid in the cleaning tank, and the cleaning liquid in the cleaning tank is allowed to flow into the container body through the inflow portion to remove the metal object in the container body. Immerse in cleaning solution.

  Therefore, in the cleaning process, the metal object is cleaned by immersing the container body in the cleaning liquid for a predetermined time, and the deposits attached to the metal object are removed.

  In the container body moving step after the cleaning process, the container body is moved to a position where at least the inflow portion of the container body is higher than the level of the cleaning liquid in the cleaning tank. Since the container body is configured to be able to store the cleaning liquid, it maintains the state in which the cleaning liquid that has flowed in from the cleaning tank is stored even after the position is changed (after movement), and accordingly, the metal object is immersed in the cleaning liquid. Keep in state.

  The container body after the movement is placed in a room temperature state away from the environment in the cleaning tank, and the cleaning liquid in the container body can be cooled in a state where the cleaning liquid in the cleaning tank is not thermally affected.

  Thereby, the metal object washing | cleaning apparatus of the said structure can take out a metal object, without crystallizing the component of a washing | cleaning liquid on the surface of a metal object, or oxidizing a metal object.

  On the other hand, the cleaning liquid in the cleaning tank maintains a high temperature state and maintains a state in which metal objects can be cleaned. Thereby, the washing | cleaning method of the said metal object can start the washing | cleaning of another metal object immediately, without waiting for cooling and heating of a washing | cleaning liquid.

  As one aspect of the present invention, it is preferable to further include a cooling step for directly or indirectly cooling the cleaning liquid in the container body after the container body moving step. If it does in this way, in the cooling process, since the washing | cleaning liquid which immersed the metal object is forcedly cooled, a metal object is cooled in a short time, keeping the wet state with a washing | cleaning liquid. Therefore, the metal object can be taken out in a short time.

  As another aspect of the present invention, in the cooling step, the cooling liquid may be supplied into the container body from a cooling liquid storage section storing a cooling liquid having a temperature lower than that of the cleaning liquid heated in the cleaning tank and the same quality as the cleaning liquid. Good. In this way, in the cooling step, the cooling liquid stored in the cooling liquid storage unit (cooling at a lower temperature than the cleaning liquid heated in the cleaning tank and the same quality as the cleaning liquid is stored in the container body storing the heated cleaning liquid. Liquid). As a result, a cooling liquid having a temperature lower than that is added to the cleaning liquid in a high temperature state, and the temperature of the cleaning liquid (strictly, a mixed liquid of the cleaning liquid and the cooling liquid) is lowered in the container. As a result, the metal object immersed in the cleaning liquid in the container is forcibly cooled in a short time. Further, since the cooling liquid is the same quality as the cleaning liquid, alteration of the surface of the metal object is prevented.

  In this case, in the cooling step, the cleaning liquid discharged as an excess from the container body with the supply of the cooling liquid is received by the liquid received above the liquid level of the cleaning liquid in the cleaning tank and below the container body. It is preferable to receive and guide to the coolant storage part. In this way, in addition to cooling the cleaning liquid in the container body (supplying the cooling liquid into the container body), the cleaning liquid discharged as an excess from the container body is received by the receiving liquid and guided to the cooling liquid reservoir. Is done. As a result, the cleaning liquid and the cooling liquid are circulated between the container body and the cooling liquid reservoir, so that the cleaning liquid in the container body is cooled to become the cooling liquid in the circulation process. Accordingly, the cooling liquid for cooling the cleaning liquid in the container can be minimized.

  As described above, the present invention can achieve an excellent effect that it is possible to increase the efficiency of the cleaning operation of the metal object, while preventing the components contained in the cleaning liquid from being fixed to the metal object and oxidation.

FIG. 1 is an overall perspective view of a metal object cleaning apparatus according to an embodiment of the present invention. FIG. 2 is an overall front view of the metal object cleaning apparatus according to the embodiment. FIG. 3 is a partially exploded perspective view of the metal object cleaning apparatus according to the embodiment. FIG. 4 is a partial perspective view of the metal object cleaning apparatus according to the embodiment. FIG. 5 is a partially enlarged cross-sectional view of the metal object cleaning apparatus according to the embodiment. FIG. 6 is a partially enlarged cross-sectional view of the metal object cleaning apparatus according to the embodiment. FIG. 7 is an operation explanatory diagram of the metal object cleaning apparatus according to the embodiment. FIG. 8 is an operation explanatory diagram of the metal object cleaning apparatus according to the embodiment. FIG. 9 is a schematic view of a metal object cleaning apparatus according to another embodiment of the present invention. FIG. 10 is a schematic view of a metal object cleaning apparatus according to another embodiment of the present invention. FIG. 11 is a schematic cross-sectional view of a container body in a metal cleaning apparatus according to still another embodiment of the present invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  As shown in FIGS. 1 and 2, the metal cleaning apparatus (hereinafter simply referred to as a cleaning apparatus) has an inflow portion 202 for introducing the cleaning liquid Wa and an introduction section 203 for introducing the metal M, and stores the cleaning liquid Wa. The container body 2 configured to be capable of being stored in a state where the metal object M is immersed in the cleaning liquid Wa, and the cleaning configured to be capable of storing the cleaning liquid Wa and configured to store the container body 2 The tank 3, the heating means 4 for heating the cleaning liquid Wa in the cleaning tank 3, the lower limit position LP and the container body where at least the inflow portion 202 of the container body 2 is below the liquid level WL of the cleaning liquid Wa in the cleaning tank 3 And an elevating means 5 for elevating and lowering the container body 2 with an upper limit position UP at which at least the inflow portion 202 of 2 is higher than the liquid level WL of the cleaning liquid Wa in the cleaning tank 3.

  In the present embodiment, the cleaning apparatus 1 includes a cooling unit 6 that cools the cleaning liquid Wa in the container body 2 at the upper limit position UP in addition to the above configuration. The cleaning apparatus 1 also includes a steam recovery means 7 that recovers the steam of the cleaning liquid Wa generated in the cleaning tank 3. Further, the cleaning apparatus 1 includes a main frame 8 that supports the cleaning tank 3, the lifting / lowering means 5, the cooling means 6, and the steam recovery means 7.

  As shown in FIG. 3, the container body 2 includes a container body 20 that can store the cleaning liquid Wa and can store the metal object M, and heat radiation fins 21 that protrude from the outer surface of the container body 20. In the present embodiment, the cleaning apparatus 1 includes a connection frame 23 including a connection portion 230 that connects the container body 2 to the elevating means 5.

  The container body 20 includes a container bottom part 200 on which the metal object M is placed, and a container peripheral wall part 201 that is connected to the outer periphery of the container bottom part 200 and stands up from the container bottom part 200. In the present embodiment, the container bottom portion 200 is configured by a plate having a rectangular shape in plan view.

  Accordingly, the container peripheral wall 201 is formed in a substantially rectangular frame shape in plan view. More specifically, the container peripheral wall 201 is arranged corresponding to each of the four sides constituting the outline of the container bottom 200, and is connected to the four container walls 201a ... connected to the corresponding sides of the container bottom 200. Including. Each of the four container wall portions 201a is a rectangular plate, and is connected to the adjacent container wall portion 201a. The length (height) of the container peripheral wall 201 in the standing direction is set longer (higher) than the height of the metal object M to be cleaned.

  Thereby, the container main body 20 (the container bottom 200 and the container peripheral wall 201) defines an area where the cleaning liquid Wa can be stored and the metal object M can be disposed. An upper end portion of the container body 20 (container peripheral wall portion 201) defines an inflow portion 202 for introducing the cleaning liquid Wa and an introduction portion 203 for introducing the metal object M.

  The radiation fins 21 are formed in a rib shape. In this embodiment, the radiation fins 21 are connected to the lower surface of the container bottom portion 200. In the present embodiment, the container body 2 includes a plurality of heat radiation fins 21. The plurality of heat radiating fins 21 are arranged at intervals in one direction.

  The connection frame 23 is connected to the container peripheral wall 201 of the container body 20 and extends upward from the upper end of the container peripheral wall 201 in a first lateral direction orthogonal to the extending direction of the columns 231. A plurality of first beam portions 232 that connect the upper ends of the column portions 231 that extend and are arranged in the first horizontal direction, and a second horizontal direction that is orthogonal to the direction in which the column portions 231 extend and the first horizontal direction. The first beam portions 232 that extend and are arranged in the second lateral direction are connected to each other.

  The connection part 230 is directly or indirectly fixed to the container body 2 (container body 20). In the present embodiment, the connection portion 230 is included in the connection frame 23 and is indirectly fixed to the container body 2 (container body 20).

  The connection unit 230 is configured to be connectable to the lifting means 5. This will be specifically described. The connecting portion 230 includes a fixing portion 230a that is directly or indirectly fixed to the container body 20, and an extending portion 230b that extends laterally from the fixing portion 230a. Each of the fixing portion 230a and the extending portion 230b has a band plate shape, the fixing portion 230a is disposed so that the short direction perpendicular to the longitudinal direction is the vertical direction, and the extending portion 230b is the longitudinal direction. The transverse direction perpendicular to the vertical direction is arranged in the horizontal direction perpendicular to the vertical direction. And the end of the transversal direction orthogonal to the longitudinal direction in each of the fixing | fixed part 230a and the extension part 230b is connected. Thereby, the connection part 230 is formed in a cross-sectional L-shape.

  The connection part 230 is arrange | positioned at the both sides of the container main body 20 in the horizontal direction orthogonal to an up-down direction. That is, the connection part 230 is provided corresponding to each of two container wall parts 201a ... which opposes. Accordingly, the extending portions 230b of the pair of connecting portions 230 and 230 extend in directions opposite to each other. Thereby, the connection part 230 is comprised so that it can connect to the raising / lowering means 5 (to-be-connected part 50 mentioned later) in a latching state.

  In the present embodiment, the fixing portion 230a of each connection portion 230 is connected on both sides of the container body 20 so as to straddle the two support columns 231 arranged in the second lateral direction. That is, in the present embodiment, the connection portion 230 extends in the second horizontal direction and the extension portion 230b of each connection portion 230 extends in the first horizontal direction.

  The cleaning tank 3 is a container that can accommodate the container body 2. The cleaning tank 3 has an opening at the top, and is configured such that the container body 2 can be taken in and out from the opening. More specifically, the cleaning tank 3 includes a tank bottom 30 and a tank peripheral wall 31 that is connected to the outer periphery of the tank bottom 30 and stands up from the tank bottom 30. In the present embodiment, the tank bottom 30 is configured by a plate having a rectangular shape in plan view. The tank bottom part 30 is set to a size larger than the container body 2 (container bottom part 200).

  Accordingly, the tank peripheral wall portion 31 is formed in a frame shape having a substantially rectangular shape in plan view. If demonstrating it concretely, the tank surrounding wall part 31 will be arrange | positioned corresponding to each of the four sides which comprise the outline of the tank bottom part 30, and will connect the four tank wall parts 310 ... connected to the corresponding side of the tank bottom part 30. Including. Each of the four tank wall portions 310 is a rectangular plate and is connected to the adjacent tank wall portions 310. Thereby, the upper end part of the tank surrounding wall part 31 demarcates the upper opening part of the washing tank 3. The length (height) in the standing direction of the tank peripheral wall portion 31 is set to be longer (higher) than at least the height of the container body 2. In the present embodiment, the length (height) of the tank peripheral wall portion 31 in the standing direction is set to a length (height) that is twice or more that of the container body 2. Specifically, the tank peripheral wall portion 31 is set to a height equivalent to the height of the entire lifting means 5. Thereby, as shown in FIG. 4, the washing tank 3 according to the present embodiment is configured to be able to accommodate the entire container body 2 and the lifting means 5. In the present embodiment, as shown in FIG. 3, a pipe P for supplying and discharging the cleaning liquid Wa is connected to the tank bottom 30 of the cleaning tank 3.

  The heating unit 4 includes a heating unit 40 that is in a high temperature state, and at least the heating unit 40 is disposed in the cleaning tank 3. Here, as the heating means 4, various types such as those in which an electric heater is built in the heating unit 40 and those in which superheated steam is supplied to the heating unit 40 can be adopted.

  The elevating means 5 includes a connected portion 50 to which the container body 2 is connected, an elevating mechanism portion 51 that moves the connected portion 50 up and down, and a drive portion 52 that operates the elevating mechanism portion 51. In the present embodiment, the elevating means 5 includes a connected part 50, an elevating mechanism part 51, and a support frame 53 that supports the drive part 52. Moreover, the raising / lowering means 5 is provided with the guide means 54 which guides the to-be-connected part 50 to which the container body 2 is connected to the up-down direction in order to raise / lower the container body 2 smoothly.

  The connected portion 50 is formed in a frame shape that can surround the container body 2. That is, the to-be-connected part 50 extends in the first lateral direction with a pair of first lateral members 500, 500 extending in the second lateral direction with an interval in the first lateral direction and spaced in the second lateral direction, A pair of second transverse members 501 and 501 are connected to the pair of first transverse members 500 and 500 at both ends in the first transverse direction. The first horizontal members 500 and 500 are disposed at positions overlapping with the extending portion 230b of the connecting portion 230 of the container body 2 in the vertical direction. Accordingly, the extended portion 230b of the connecting portion 230 is connected to the first lateral members 500, 500. In the present embodiment, the connected portion 50 is configured such that the container body 2 is connected by hooking the extended portion 230 b of the connecting portion 230 of the container body 2 to the first horizontal members 500 and 500. Thereby, in this embodiment, the container body 2 can be connected with the raising / lowering means 5. That is, in the cleaning device 1, the container body 2 is configured to be replaceable.

  The elevating mechanism 51 includes a rod-like spiral body 510 that extends in the vertical direction and is rotatably supported by the support frame 53, and a moving body 511 that is screwed into the spiral body 510.

  In the present embodiment, the lower end portion of the spiral body 510 is rotatably supported by the support frame 53. The moving body 511 is connected to the connected portion 50. In the present embodiment, a part of the connected portion 50 is also used as the moving body 511. Specifically, a part of the connected part 50 is also used as the moving body 511 by providing an internal thread part (not shown) to be screwed with the spiral body 510 in a part of the connected part 50.

  The driving unit 52 is connected to the upper end of the spiral body 510. In this embodiment, the lifting / lowering means 5 is driven manually. Accordingly, the lifting / lowering means 5 includes a rotation handle that can be manually operated as the drive unit 52.

  The support frame 53 includes an upper frame portion 530 that defines an area that allows the container body 2 to pass in the vertical direction, and a plurality of leg portions 531 that support the upper frame portion 530.

  The upper frame portion 530 is formed in a rectangular frame shape, and allows the container body 2 to move up and down in the inner region. That is, the upper frame portion 530 is a frame that is larger than the planar size of the container body 2. In the present embodiment, as described above, since the elevating means 5 is accommodated in the cleaning tank 3, the upper frame portion 530 is set smaller than the internal space of the cleaning tank 3. The leg portions 531 are arranged corresponding to the four corner portions of the upper frame portion 530. That is, the support frame 53 includes four leg portions 531..., And each of the four leg portions 531... Is connected to a different corner of the upper frame portion 530. In the present embodiment, the support frame 53 includes leg connecting members 532 connecting intermediate positions of the four leg portions 531.

  In the present embodiment, since the elevating means 5 is accommodated in the cleaning tank 3, the leg connecting member 532 has a plurality of openings (not numbered) that allow the flow of the liquid (cleaning liquid Wa). In the present embodiment, the leg connecting member 532 divides a space from the lower end to the upper end (upper frame portion 530) of the leg portions 531. Of the two regions separated by the leg connecting material 532, the upper region is a region where the container body 2 (container body 20) can be placed, and the lower region is the heating means 4 or a stirrer (not shown). And so on. That is, the leg connecting member 532 determines the lower limit position LP of the container body 2 that moves up and down (see FIG. 4).

  The guide means 54 includes a guide bar 540 that is fixed to the support frame 53 (upper frame portion 530) and extends in the vertical direction, and a guide body 541 that is movable along the guide bar 540. In this embodiment, the guide means 54 indirectly guides the container body 2 by guiding the connected portion 50 of the elevating means 5. More specifically, the guide means 54 is provided corresponding to each of the four corners of the connected portion 50 having a frame shape. In the present embodiment, the guide body 541 is integrated with the connected portion 50.

  Returning to FIG. 2, the cooling means 6 includes a cooling liquid storage unit 60 that can store a cooling liquid Wb that is lower in temperature than the cleaning liquid Wa heated in the cleaning tank 3 and is the same quality as the cleaning liquid Wa, and a cooling liquid storage unit 60. And a coolant supply system 61 for supplying the stored coolant Wb into the container body 2 at the upper limit position UP. Accordingly, the cleaning device 1 includes a receiving liquid 9 that receives the cleaning liquid Wa (cleaning liquid Wa that exceeds a predetermined capacity) discharged as an excess from the container body 2 at the upper limit position UP.

  In the present embodiment, a container having an open part (not numbered) at least at a part of the upper end is adopted as the coolant storage part 60. A coolant supply system 61 is inserted into the open portion of the coolant reservoir 60. In addition, it is preferable that the coolant storing unit 60 has a function of blocking external heat and a heat retaining function of keeping the coolant Wb at a constant temperature in order to suppress an increase in the temperature of the coolant Wb. Further, a cooling function (cooler) may be provided in order to lower the temperature when the temperature of the coolant Wb rises.

  The coolant supply system 61 is a system that connects a position above the upper limit position UP where the container body 2 pulled up from the cleaning tank 3 is disposed and the coolant storage unit 60. Specifically, the coolant supply system 61 is disposed at a position corresponding to the suction port BP disposed in the coolant reservoir 60 and the inflow portion 202 of the container body 2 disposed at the upper limit position UP. And an outlet OP. In the present embodiment, the coolant supply system 61 includes a pipe 610 extending from the upper limit position UP to the coolant reservoir 60 and a pump 611 connected to the pipe 610 in the coolant reservoir 60. Accordingly, in the coolant supply system 61 according to the present embodiment, the suction port BP is configured by the suction port of the pump 611, and the discharge port OP is configured by the end of the pipe 610 at the upper limit position UP. In the present embodiment, since the inflow portion 202 of the container body 2 is configured by the upper opening of the container main body 20, the discharge port OP of the coolant supply system 61 is the upper opening (inflow portion 202) of the container main body 20. It is arranged in the upper position.

  The coolant supply system 61 drives the pump 611 in a state where the container body 2 is disposed at the upper limit position UP, and sends the coolant Wb in the coolant reservoir 60 to the discharge port OP. The cooling liquid supply system 61 is driven (pump 611 is driven) by measuring the temperature of the cleaning liquid Wa in the container body 2 (container body 20) at the upper limit position UP with a temperature sensor or the like, and being cooled to a predetermined temperature. May be stopped at the point of time, or after a lapse of a predetermined time (a time required for the temperature of the cleaning liquid Wa in the container body 2 (container body 20) at the upper limit position UP to reach a predetermined low temperature state). Also good.

  In the present embodiment, the position at which the entire container body 2 is disposed at a position higher than the liquid level WL of the cleaning liquid Wa in the cleaning tank 3 is set as the upper limit position UP. Accordingly, the receiving liquid 9 is disposed at a position below the upper limit position UP in the lifting path of the container body 2 and above the liquid level WL of the cleaning liquid Wa in the cleaning tank 3.

  Since the container body 2 moves up and down (moves) between the lower limit position LP and the upper limit position UP, the liquid receiver 9 is configured to be retractable from the lifting path of the container body 2. That is, since the liquid receiver 9 is located in the movement path of the container body 2 in a state below the container body 2 at the upper limit position UP, at least the movement of the container body 2 (when the container body 2 moves ( It is provided so as to be retractable from the (elevation) path.

  In the present embodiment, the liquid receiver 9 includes a pair of cover plates 90 and 91 that are arranged side by side with one end facing each other in the lifting path of the container body 2 as shown in FIG. The pair of lid plates 90 and 91 are configured to be separated from each other at least when the container body 2 is raised and lowered and retreated from the raising and lowering path of the container body 2.

  In the present embodiment, the other end of each of the pair of lid plates 90 and 91 opposite to the one end is in a direction in which the pair of lid plates 90 and 91 are arranged side by side and in a direction perpendicular to the elevation direction of the container body 2. It is supported rotatably about the extending axis. In the present embodiment, the other end portions of the pair of cover plates 90 and 91 are pivotally supported by the support frame 53 (leg portion 531) of the elevating means 5. In the present embodiment, as the other ends of the pair of lid plates 90 and 91 are pivotally supported, the liquid receiver 9 applies a rotational force around the axis to the lid plates 90 and 91, thereby Urging means 92 is provided for bringing the ends of the cover plates 90 and 91 to face each other.

  In the present embodiment, the pair of cover plates 90 and 91 to which the rotational force is applied by the urging means 92 are in a state in which one end faces each other by contact with the upper frame portion 530 of the support frame 53 (continuously side by side). Maintained).

  Thus, each of the pair of lid plates 90 and 91 has a first posture (one end is positioned below the other end) extending in the vertical direction and a second posture (one end and the other end) extending in the lateral direction. Can be switched to a posture in which the two are substantially in the same row in the horizontal direction.

  In other words, the pair of cover plates 90 and 91 are pushed by the container body 2 descending from the upper limit position UP toward the lower limit position LP to be in the first posture, thereby retracting from the lifting path of the container body 2. While opening the elevating path, the container body 2 rises from the lower limit position LP toward the upper limit position UP, and reaches the upper limit position UP and assumes the second posture by the biasing force of the biasing means 92. It is arranged below the container body 2 at the position UP.

  The liquid receiver 9 is configured so that the received cleaning liquid Wa can be guided to the coolant storage unit 60. More specifically, the liquid receiver 9 has a flange 93 that is connected to one end of one lid plate 90. In the present embodiment, the flange portion 93 is connected to one end of one lid plate 90 and extends along the one end. Accordingly, the pair of lid plates 90 and 91 are provided so that one end portion of the other lid plate 91 extends on the open portion of the flange portion 93 in the second posture. As the flange 93 is continuously provided on the other end of the one cover plate 90, each of the pair of cover plates 90 and 91 is in the second posture in order to guide the received cleaning liquid Wa to the flange 93. In the state, it inclines forward and downward from one end to the other end.

  In the present embodiment, as shown in FIG. 2, the cleaning device 1 fluidly connects the liquid receiver 9 and the coolant reservoir 60 and supplies the coolant Wa received by the receiver 9 to the coolant reservoir 60. A connection channel 930 is provided. In the present embodiment, since the receiving liquid 9 is disposed in the cleaning tank 3, the connection channel 930 is connected from the cleaning tank 3 to the coolant reservoir 60 (in the present embodiment, the coolant liquid as shown in FIG. 6). Formed by a pipe 930 a that forms a flow path leading to the open portion of the storage section 60, and a flow path forming member 930 b that forms a flow path that bridges the flange 93 and the pipe 930 a extending into the cleaning tank 3. The In the present embodiment, the flow path forming member 930b is connected to the support frame 53 (upper frame portion 530) of the elevating means 5.

  Returning to FIG. 2, the steam recovery means 7 includes a steam recovery pipe 70 (see FIG. 6) connected to the cleaning tank 3 and a steam recovery tank 71 for storing the steam from the steam recovery pipe 70. The steam recovery means 7 prevents the steam of the cleaning liquid Wa generated with the cleaning of the metal object M from being scattered.

  The main frame 8 includes a frame main body 80 to which the cleaning tank 3, the lifting / lowering means 5, the cooling means 6 and the vapor recovery means 7 are fixed, and a caster 81 attached to the frame main body. Thereby, the main frame 8 functions as a traveling carriage. That is, the entire cleaning device 1 is configured to be movable.

  The configuration of the cleaning device 1 according to the present embodiment is as described above, and the operation of the cleaning device 1 will be described. When cleaning the metal mold M, the cleaning liquid Wa includes, for example, an alkaline cleaning solution containing silicate (sodium metasilicate, sodium orthosilicate, etc.), sodium carbonate, sodium hydroxide, or potassium hydroxide. As an example, an alkaline cleaning solution containing silicate (sodium metasilicate, sodium orthosilicate, etc.), sodium carbonate, sodium hydroxide, or potassium hydroxide is also used for the cooling liquid Wb that is the same quality as the cleaning liquid Wa. Is done.

  First, as shown in FIG. 7A, the cleaning liquid Wa is put in the cleaning tank 3, and the cleaning liquid Wa is heated to a predetermined high temperature state by the heating means 4. In this state, the container body 2 is disposed at the upper limit position UP, and the metal mold M is accommodated in the container body 2 (container body 20) from the introduction portion 203 (upper end opening) (preparation step). .

  Then, as shown in FIG. 7B, the container body 2 is lowered by the elevating means 5. In the present embodiment, when the operator rotates the drive unit 52 (handle) of the elevating means 5, the spiral body 510 is rotated, and the moving body 511 is lowered along the spiral body 510. If it does so, as a result of the to-be-connected part 50 used also as the moving body 511 also falling from upper limit position UP, the container body 2 connected to the to-be-connected part 50 will also fall.

  At this time, since the liquid receiver 9 is present in the up-and-down path (movement region) of the container body 2, the liquid receiver 9 (the pair of lid plates 90 and 91) is pushed by the descending container body 2 and the container body 2 moves. Free up space. Then, as shown in FIG. 7C, the container body 2 enters the cleaning tank 3 and is immersed in the cleaning liquid Wa. In this state, the cleaning liquid Wa in the cleaning tank 3 flows from the inflow portion 202 (upper end opening) of the container main body 20, and as a result, the container main body 20 in which the metal object M is accommodated is filled with the high temperature cleaning liquid Wa.

  Therefore, by leaving the container body 2 in the cleaning tank 3 (lower limit position LP) for a predetermined time, the deposits of the metal object M are removed, and the cleaning of the metal object M is completed (cleaning process).

  When the cleaning of the metal object M is completed, the container body 2 is raised by the elevating means 5 as shown in FIG. In the present embodiment, when the operator rotates the drive unit (rotating handle) 52 of the elevating means 5, the spiral body 510 is rotated and the moving body 511 is raised along the spiral body 510. Then, as shown in FIG. 8B, as a result of the connected portion 50 also serving as the moving body 511 rising from the lower limit position LP, the container body 2 connected to the connected portion 50 also rises (container moving step). ).

  At the same time, the pair of lid plates 90 and 91 (the lid plates 90 and 91 in the first posture) that have been pushed down by the container body 2 are rotated by the biasing force of the biasing means 92 (see FIG. 5). As shown in FIG. 8C, the container body 2 assumes the second posture in a state where it reaches the upper limit position UP. That is, the liquid receiver 9 (the pair of lid plates 90 and 91) is in a state where it can receive the cleaning liquid Wa discharged as an excess from the container body 2 when the container body 2 reaches the upper limit position UP. .

  Since the container body 2 (container body 20) is configured to store the cleaning liquid Wa, the container body 20 is filled with the cleaning liquid Wa flowing in the cleaning tank 3 even when the container body 2 reaches the upper limit position UP. The metal object M is maintained in a state where it is completely immersed in the cleaning liquid Wa.

  Then, as described above, when the container body 2 reaches the upper limit position UP, the coolant supply system 61 operates to supply the coolant Wb into the container body 20 (cooling process). That is, the pump 611 of the coolant supply system 61 is driven, and the coolant Wb in the coolant reservoir 60 is supplied toward the inflow portion 202 of the container body 20. If it does so, the washing | cleaning liquid Wa with which the container main body 20 is filled will be extruded from the container main body 20 with supply of the cooling fluid Wb. That is, the excess cleaning liquid Wa is discharged (overflows) from the container body 20. As shown in FIG. 6, the cleaning liquid Wa discharged from the container body 20 in this way is received by the receiving liquid 9, collected in the flange portion 93 by the inclination of the cover plates 90 and 91, and then via the connection flow path 930. Then, the coolant is collected in the coolant reservoir 60. Then, the cleaning liquid Wa that has been in a high temperature state is mixed with the low-temperature cooling liquid Wb in the cooling liquid storage unit 60, resulting in the low-temperature cooling liquid Wb.

  As described above, by supplying the cooling liquid Wb, the cleaning liquid Wa and the cooling liquid Wb circulate between the cooling liquid supply system 61 and the container body 2. The cooling liquid Wb is sequentially replaced, and the cleaning liquid Wa in the container body 20 also becomes the cooling liquid Wb. Moreover, in this embodiment, since the container body 2 is provided with the radiation fins 21..., As described above, the container body 20 is radiated through the radiation fins 21. As a result, the cleaning liquid Wa in the container body 20 is cooled. Is promoted.

  Thereby, the temperature of the cleaning liquid Wa in the container body 20 decreases in a short time. In this state, the metal object M is completely immersed in the cooling liquid Wb (substantially the cleaning liquid Wa) of the same quality as the cleaning liquid Wa in the container body 20, and is in a low temperature state (for example, a normal temperature state) like the cooling liquid Wb. It has become. As a result, the metal object M can be removed from the container body 20.

  Note that when the metal object M is taken out from the container body 20, the cleaning liquid Wa (cooling liquid Wb) may be stored in the container body 20 and taken out. It is also possible to provide a drain port to be discharged, seal the drain port in the course of cleaning or cooling, and open the drain port to discharge the cleaning liquid Wa when taking out the metal M. Even if it does in this way, as a result of collect | recovering discharged | emitted washing | cleaning liquid Wa to the cooling fluid storage part 60 via the receiving liquid 9, it can also be used as a cooling fluid Wb in the next washing | cleaning.

  The cleaning liquid Wa in the cleaning tank 3 is not heated until the container body 2 is pulled up above the liquid level WL of the cleaning liquid Wa in the cleaning tank 3 and the metal object M is taken out from the container body 20 as described above. Since it is heated by 4, it maintains at a high temperature state.

  Accordingly, the metal object M is accommodated in the container body 2 at the upper limit position UP, and the container body 2 is immersed again in the cleaning liquid Wa in the cleaning tank 3, so that the cleaning of the metal object M is started immediately.

  As described above, the cleaning apparatus 1 according to this embodiment has the container body 2 immersed in the high-temperature cleaning liquid Wa in the cleaning tank 3 so that the metal object M is cleaned and attached to the metal object M. Deposits can be removed. Then, after the cleaning of the metal object M is completed, even if the container body 2 is disposed at the upper limit position UP above the liquid level WL of the cleaning liquid Wa in the cleaning tank 3, the cleaning liquid Wa flowing in from the cleaning tank 3 is removed. The stored state is maintained, and accordingly, the metal object M is maintained in the stored cleaning liquid Wa.

  Then, the container body 2 at the upper limit position UP is placed in a room temperature state away from the heating environment by the heating means 4, and the container body 2 in the state in which the cleaning liquid Wa in the cleaning tank 3 is not thermally affected. The cleaning liquid Wa can be cooled. Thereby, the cleaning apparatus 1 having the above-described configuration can take out the metal object M without crystallizing the components contained in the cleaning liquid Wa on the surface of the metal object M or oxidizing the metal object M.

  On the other hand, since the cleaning liquid Wa in the cleaning tank 3 is heated by the heating means 4, the high temperature state is maintained and the metal object M is maintained in a washable state. Thereby, the cleaning apparatus 1 having the above-described configuration does not need to cool or reheat the cleaning liquid Wa in the cleaning tank 3, and can suppress the lengthening of processing due to temperature control of the cleaning liquid Wa.

  Therefore, the cleaning apparatus 1 (cleaning method) according to the present embodiment prevents the adhesion of the components contained in the cleaning liquid Wa to the metal object M and the oxidation of the metal object M, and improves the efficiency of the cleaning operation of the metal object M. be able to.

  Moreover, since the cleaning apparatus 1 according to the present embodiment further includes the cooling means 6 for cooling the cleaning liquid Wa in the container body 2 at the upper limit position UP, the cleaning liquid Wa in which the metal object M is immersed is forced by the cooling means 6. Cooled. As a result, the metal object M can be brought to room temperature in a short time while maintaining the metal object M in a wet state with the cleaning liquid Wa, and the metal object M can be taken out in a short time.

  In the present embodiment, the cooling means 6 includes a cooling liquid reservoir 60 that can store a cooling liquid Wb having a temperature lower than that of the cleaning liquid Wa heated in the cleaning tank 3 and the same quality as the cleaning liquid Wa, and a cooling liquid storage section. Since the cooling liquid Wb stored in the container body 2 is supplied to the container body 2 at the upper limit position UP, the cleaning liquid Wa stored in the container body 2 is forced by the cooling liquid Wb. To be cooled. Further, since the cooling liquid Wb is the same quality as the cleaning liquid Wa, it is possible to prevent the surface of the metal object M from being altered.

  The cleaning device 1 also includes a receiving liquid 9 that receives the cleaning liquid Wa discharged as an excess from the container body 2 at the upper limit position UP, and the receiving liquid 9 guides the received cleaning liquid Wa to the cooling liquid storage unit 60. Since it is configured to be possible, the liquid is circulated between the container body 2 and the cooling liquid reservoir 60, and the cleaning liquid Wa in the container body 2 is cooled to become the cooling liquid Wb in the circulation process. Therefore, the cooling liquid Wb for cooling the cleaning liquid Wa in the container body 2 can be minimized. In addition, since the liquid receiver 9 is configured to be retractable from the elevation path of the container body 2, the container body 2 is allowed to rise and fall.

  In particular, in the present embodiment, the receiving liquid 9 is disposed in the cleaning tank 3, so that it can be used as a lid that closes the internal space of the cleaning tank 3 above the liquid level WL of the cleaning liquid Wa in the cleaning tank 3. Function. Thereby, when the container body 2 moves upward toward the upper limit position UP or reaches the upper limit position UP, it is possible to prevent the cleaning liquid Wa in the cleaning tank 3 from scattering or evaporating. When the cleaning liquid Wa in the body 2 is cooled, the cleaning liquid Wa that is in a high temperature state in the cleaning tank 3 is also suppressed from having a thermal effect on the container body 2 in the upper limit position UP.

  In addition, the liquid receiver 9 includes a pair of lid plates 90 and 91 that are arranged side by side so that one ends thereof are opposed to each other in the ascending / descending path of the container body 2, and the pair of lid plates 90 and 91 includes at least the Since the container body 2 is configured to retreat from the lifting path of the container body 2 while being lifted and lowered, the pair of lid plates 90 and 91 are continuously arranged side by side below the container body 2 at the upper limit position UP. Be placed. Accordingly, the pair of lid plates 90 and 91 can reliably receive the cleaning liquid Wa discharged from the container body 2 as an excess amount. On the other hand, the pair of cover plates 90 and 91 are relatively separated from each other at the time of raising and lowering the container body 2 and evacuate from the raising and lowering path of the container body 2. 2 can be allowed to move up and down.

  In particular, the other end of each of the pair of lid plates 90 and 91 opposite to one end has an axis extending in a direction in which the pair of lid plates 90 and 91 are arranged side by side and in a direction perpendicular to the raising and lowering direction of the container body 2. While being supported rotatably as the center of rotation, the liquid receiver 9 applies a rotational force around the axis to the cover plates 90 and 91 so that the ends of the pair of cover plates 90 and 91 face each other. Since the urging means 92 to be in the state is provided, the pair of lid plates 90 and 91 are pushed by the container body 2 descending from the upper limit position UP and rotate with the other end portion as a rotation fulcrum, thereby separating one end from each other.

  That is, the pair of lid plates 90 and 91 change their postures so that one end is positioned below the other end. Accordingly, the pair of lid plates 90 and 91 are retracted from the lifting path of the container body 2 to open the lifting path, and the lifting and lowering of the container body 2 is allowed.

  Then, when the container body 2 at the lower limit position LP rises and reaches the upper limit position UP, the pair of lid plates 90 and 91 are continuously arranged side by side by applying a rotational force to the lid plates 90 and 91 by the biasing means 92. Return to the state where it was placed. That is, by the urging of the urging means 92, the pair of cover plates 90 and 91 are automatically returned to a state in which the cleaning liquid Wa discharged as an excess from the container body 2 with the supply of the cooling liquid Wb can be reliably received. To do. Therefore, it is possible to receive the cleaning liquid Wa and raise and lower the container body 2 with a simple configuration.

  Further, the liquid receiver 9 has a flange 93 that is connected to one end of at least one of the lid plates 90 and 91, and the flange 93 receives the cleaning liquid Wa received by the pair of lid plates 90 and 91 as a coolant. Since the cooling liquid Wb received by the liquid receiver 9 is configured to be guided toward the storage unit 60, the cooling liquid Wb is collected in the flange 93 without being diffused, passes through the flange 93, and is stored in the coolant storage unit 60. Be directed towards. As a result, more cleaning liquid Wa is recovered in the cooling liquid reservoir 60, so that the cleaning liquid Wa can be used as the cooling liquid Wb without waste.

  Moreover, since the container body 2 includes the container body 20 that can store the cleaning liquid Wa and can store the metal object M, and the heat radiation fins 21 that protrude from the outer surface of the container body 20, the container body 2 is provided with the container body 20. Compared to the case of only comprising, the surface area becomes wider. Therefore, the area where the container body 2 is exposed to the outside air in the state where the container body 2 is at the upper limit position UP is widened. That is, as a result of increasing the heat dissipation efficiency by the container body 2, the stored cleaning liquid Wa can be efficiently cooled.

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

  For example, in the above embodiment, the metal mold M is described as the object to be cleaned, but the present invention is not limited to this. For example, in addition to the mold, the metal object M may be another processing tool such as a die, or a product manufactured using the processing tool (for example, a bearing, an iron ball or steel serving as a part thereof) Sphere, ring, etc.).

  In the above embodiment, the cleaning liquid Wa in the container body 2 is cooled by supplying (circulating) the same cooling liquid Wb as the cleaning liquid Wa to the container body 2 (container body 20) at the upper limit position UP. It is not limited to this. For example, the cleaning liquid Wa may be forcibly cooled by blowing cooling air to the container body 2 or the cleaning liquid Wa in the container body 2.

  Moreover, in the said embodiment, although the washing | cleaning liquid Wa in the container body 2 (container main body 20) was forcedly cooled, it is not limited to this. For example, the cleaning liquid Wa in the container body 2 may be naturally cooled while the container body 2 is placed at the upper limit position UP or moved to a position different from the upper limit position UP. Even in this case, since the cleaning liquid Wa in the cleaning tank 3 is maintained at a high temperature, the metal object M can be immediately cleaned using another container body 2.

  In these cases, since the cooling liquid Wb is not supplied to the container body 2 (container body 20), it is not necessary to provide the receiving liquid 9 for receiving the cleaning liquid Wa discharged as an excess from the container body 2. You may provide the receiving liquid 9 of a structure as a cover body which covers the upper direction rather than the liquid level of the washing | cleaning liquid Wa in the washing tank 3. FIG. That is, a lid that closes the internal space of the cleaning tank 3 or the upper opening of the cleaning tank 3 at a position higher than the liquid level WL of the cleaning liquid Wa in the cleaning tank 3 may be provided. If the lid is provided in this way, it is possible to prevent the cleaning liquid Wa in the cleaning tank 3 from being scattered or evaporated, and the container body in which the high-temperature cleaning liquid Wa in the cleaning tank 3 is at the upper limit position UP. It is also possible to suppress heat influence on 2. As long as the lid can close the internal space of the cleaning tank 3 or the upper opening, various types of lids can be adopted. A similar structure is preferable.

  In the above embodiment, the liquid receiver 9 is also used as a lid for closing the internal space of the cleaning tank 3, but the present invention is not limited to this. For example, the liquid receiver 9 and the lid are provided separately. Also good. That is, the receiving liquid 9 having only the function of receiving the cleaning liquid Wa discharged from the container body 2 as an excess, and the lower part of the receiving liquid 9 are disposed in the internal space of the cleaning tank 3 or the opening in the upper part of the cleaning tank 3. The lid having only the closing function may be provided as an independent configuration.

  In the above-described embodiment, the elevating means 5 is provided with a spiral body 510 and a moving body 511 (so-called feed spiral mechanism), but is not limited thereto. For example, the elevating means 5 may employ a wire, a chain block, or the like that suspends and raises the container body 2.

  In the said embodiment, although the container body 2 was connected to the raising / lowering means 5 so that attachment or detachment was possible, it is not limited to this, For example, the container body 2 is being fixed to the to-be-connected part 50 of the raising / lowering means 5. Also good.

  In the above embodiment, the connection frame 23 including the connection portion 230 is connected to the container body 2 so that the container body 2 is indirectly connected to the connected portion 50 of the elevating means 5. It is not limited. For example, it is of course possible to connect the connecting portion 230 directly to the container body 2 (container body 20) and connect the container body 2 to the elevating means 5 via the connecting portion 230.

  In the above embodiment, the liquid receiver 9 is composed of the pair of lid plates 90 and 91 that open and close the upper end opening of the cleaning tank 3, but is not limited thereto. For example, as shown in FIG. 9, the liquid receiver 9 may be a single cover plate. That is, the receiving liquid 9 may be in any form that can receive the cleaning liquid Wa discharged as an excess from the container body 2. However, in this case, it goes without saying that the liquid receiver 9 is provided so that it can be retracted from the lifting path of the container body 2 when the container body 2 moves up and down so as not to hinder the movement of the container body 2.

  In the above embodiment, the connection channel 930 that fluidly connects the liquid receiver 9 and the coolant reservoir 60 is provided, but the present invention is not limited to this. For example, as shown in FIG. 10, the liquid receiver 9 (cover plates 90 and 91) is disposed above the cleaning tank 3, and is connected to the flange 93 (cover plates 90 and 91) provided in the liquid receiver 9. The flange part 93) may be provided so as to extend outward from the lifting path of the container body 2. In this way, the cleaning liquid Wa received by the liquid receiver 9 can be directly supplied from the flange 93 to the coolant reservoir 60.

  In the said embodiment, although the single container body 2 was accommodated with respect to the single washing tank 3, it is not limited to this. For example, the cleaning tank 3 may be configured to accommodate a plurality of container bodies 2 and may be provided with lifting means 5 that lifts and lowers them. In this case, if the elevating means 5 for elevating and lowering the container body 2 is provided for each container body 2, cleaning or cooling can be made independent in each container body 2. Further, if the timing of raising and lowering the container body 2 is shifted, a timing shift occurs between the cleaning process and the cooling process in each container body 2, and as a result, the cleaning liquid Wa in the container body 2 at the upper limit position UP is forced by the cooling means 6. Even if it is cooled, continuous cleaning is possible although it is pseudo.

  In the above embodiment, the rotation handle for manual operation is provided as the drive unit 52 of the elevating means 5, but is not limited to this. The drive unit 52 of the elevating means 5 may employ a drive means such as an electric motor or an air motor.

  In the above embodiment, the pair of cover plates 90 and 91 constituting the liquid receiver 9 are brought into the second posture by the urging force of the urging means 92, but the present invention is not limited to this. For example, the pair of lid plates 90 and 91 may be opened and closed (rotated) according to the raising and lowering of the container body 2 by driving means such as an electric motor or an air motor.

  In the said embodiment, although the container body 2 was comprised so that it might raise / lower within the washing tank 3, it is not limited to this. For example, the container body 2 may be configured to be movable up and down between a lower limit position LP immersed in the cleaning liquid Wa in the cleaning tank 3 and an upper limit position UP set at an upper position of the cleaning tank 3. That is, the container body 2 is between the lower limit position LP below the liquid level WL of the cleaning liquid Wa in the cleaning tank 3 and the upper limit position UP above the liquid level WL of the cleaning liquid Wa in the cleaning tank 3. What is necessary is just to be provided so that raising / lowering is possible. However, the lower limit position LP is a position where the inflow portion 202 of the container body 2 is equal to or lower than the liquid level WL of the cleaning liquid Wa in the cleaning tank 3 so that the cleaning liquid Wa in the cleaning tank 3 can flow into the container body 2. Of course, the upper limit position UP is a position where the inflow portion 202 of the container body 2 exists above the liquid level WL of the cleaning liquid Wa in the cleaning tank 3.

  In the above embodiment, the upper opening of the container body 20 of the container body 2 is used as the inflow part 202 for the cleaning liquid Wa and the introduction part 203 for the metal object M, but the present invention is not limited to this. For example, as shown in FIG. 11, in the container body 2, the container body 20 may be configured such that the upper opening is closed, and the inflow part 202 and the introduction part 203 may be provided in the container peripheral wall part 201. Further, the inflow portion 202 and the introduction portion 203 may be provided at different positions. In this case, in order to give the original function to each of the inflow portion 202 and the introduction portion 203, the inflow portion 202 may be arranged at a position lower than the introduction portion 203. Further, when the upper opening of the container body 20 is closed, an opening 204 for supplying the coolant Wb may be provided in the closed portion.

  In the above embodiment, when supplying the coolant Wb into the container main body 20 at the upper limit position UP, the excess cleaning liquid Wa is discharged from the upper end opening (inflow part 202, introduction part 203) of the container main body 20 (overflow). However, the present invention is not limited to this. For example, a pipe may be connected to the container bottom 200 of the container main body 20, and the cleaning liquid Wa that becomes excessive with the supply of the cooling liquid Wb may be discharged from the pipe. In addition, instead of piping, minute holes are provided in the container bottom portion 200 (for example, four corners) of the container main body 20, and excess cleaning liquid Wa accompanying the supply of the cooling liquid Wb is discharged from the holes in the container bottom portion 200 of the container main body 20. You may make it make it.

  In this case, the cooling means 6 supplies the cooling liquid Wb in balance with the discharge amount of the cleaning liquid Wa discharged from the pipe or the hole so that the metal object M in the container body 2 is not exposed from the cleaning liquid Wa during cooling. Of course. The cleaning liquid Wa can be stored in the container body 2 (container body 20) until the container body 2 is raised from the lower limit position LP to the upper limit position UP and the cooling liquid Wb is supplied by the cooling means 6. And if it can maintain in the state which immersed the metal M in the washing | cleaning liquid Wa, it is good also considering the pipe | tube connected to the container bottom part 200 of the container main body 20, and the hole provided in the container bottom part 200 of the container main body 20 as the inflow part 202.

  DESCRIPTION OF SYMBOLS 1 ... Cleaning apparatus, 2 ... Container body, 3 ... Cleaning tank, 4 ... Heating means, 5 ... Elevating means, 6 ... Cooling means, 7 ... Steam recovery means, 8 ... Main frame, 9 ... Liquid receiving, 20 ... Container main body , 21 ... radiation fins, 23 ... connection frame, 30 ... vessel bottom, 31 ... vessel peripheral wall, 40 ... heating unit, 50 ... connected portion, 51 ... lifting mechanism unit, 52 ... driving unit, 53 ... support frame, 54 DESCRIPTION OF SYMBOLS ... Guide means, 60 ... Coolant storage part, 61 ... Coolant supply system, 70 ... Steam recovery piping, 71 ... Steam recovery tank, 80 ... Frame main body, 81 ... Casters, 90, 91 ... Cover plate, 93 ... 樋200, container bottom, 201 ... container peripheral wall, 201a ... container wall, 202 ... inflow part, 203 ... introduction part, 230 ... connection part, 231 ... strut part, 230a ... fixing part, 230b ... extension part, 232 ... First beam portion, 233 ... Second beam portion, 310 ... Tank wall , 500 ... First transverse member, 501 ... Second transverse member, 510 ... Spiral body, 511 ... Moving body, 530 ... Upper frame part, 531 ... Leg part, 532 ... Leg connecting member, 540 ... Guide bar, 541 ... Guide body 610, piping, 611, pump, 930, connection flow path, BP, suction port, OP, discharge port, P, piping, UP, upper limit position, LP, lower limit position, Wa, cleaning liquid, Wb, cooling liquid, WL,. Liquid surface

Claims (13)

  A container body configured to have an inflow section for introducing a cleaning liquid and an introduction section for introducing a metal object and configured to be able to store the cleaning liquid and to be accommodated in a state in which the metal object is immersed in the cleaning liquid; A cleaning tank configured to be storable and configured to be able to store a container body, a heating means for heating the cleaning liquid in the cleaning tank, and a position where at least an inflow portion of the container body is below the liquid level of the cleaning liquid in the cleaning tank And a lifting means for moving the container up and down between the lower limit position and the upper limit position where at least the inflow part of the container body is higher than the level of the cleaning liquid in the cleaning tank. apparatus.   The metal object washing | cleaning apparatus of Claim 1 further equipped with the cooling means to cool the washing | cleaning liquid in the container body in an upper limit position.   The cooling means includes a cooling liquid storage section capable of storing a cooling liquid having a temperature lower than that of the cleaning liquid heated in the cleaning tank and the same quality as the cleaning liquid, and the cooling liquid stored in the cooling liquid storage section within the container in the upper limit position. The metal object washing | cleaning apparatus of Claim 2 provided with the cooling fluid supply system supplied to.   The position where the entire container body is arranged at a position higher than the level of the cleaning liquid in the cleaning tank is set as the upper limit position, and is below the upper limit position in the lifting path of the container body and in the cleaning tank. A liquid receiver is provided for receiving the cleaning liquid discharged as an excess from the container body as the cooling liquid is supplied by the cooling means at a position above the liquid level of the cleaning liquid, and the liquid receiver receives the received cleaning liquid as a cooling liquid reservoir. The metal object cleaning apparatus according to claim 3, wherein the metal object cleaning device is configured to be capable of being guided toward the vehicle and configured to be retractable from a lifting path of the container body.   The liquid-receiving liquid includes a pair of lid plates that are arranged side by side so that one ends thereof are opposed to each other in the ascending / descending path of the container body, and the pair of lid plates are relatively spaced apart at least when the container body is lifted / lowered. The metal object washing | cleaning apparatus of Claim 4 comprised so that it might retract | save from the raising / lowering path | route.   The other end of each of the pair of lid plates opposite to the one end is supported rotatably about an axis extending in a direction in which the pair of lid plates are arranged side by side and in a direction perpendicular to the lifting / lowering direction of the container body. The metal receiving device according to claim 5, further comprising an urging unit that applies a rotational force around the axis to the cover plate so that the ends of the pair of cover plates face each other. Cleaning device.   The liquid receiver has a flange portion that is connected to one end of at least one lid plate, and the flange portion is configured to guide the cleaning liquid received by the pair of lid plates toward the coolant reservoir portion. The metal object cleaning apparatus according to claim 5 or 6.   The metal object according to any one of claims 4 to 7, further comprising a connection flow path for fluidly connecting the liquid receiver and the coolant reservoir, and supplying a cleaning liquid received by the liquid receiver to the coolant reservoir. Cleaning device.   The metal body cleaning apparatus according to any one of claims 1 to 5, wherein the container body includes a container main body capable of storing a cleaning liquid and accommodating a metal object, and a heat radiation fin protruding from an outer surface of the container main body.   In addition to having an inflow part for introducing a cleaning liquid and an introduction part for introducing a metal object, a preparatory step for storing the metal object in a container body configured to store the cleaning liquid and to be able to store the metal object, and to accommodate the metal object A cleaning process in which the container body is immersed in a cleaning liquid in a high temperature state stored in a cleaning tank, the cleaning liquid is allowed to flow into the container body from the inflow portion, and a metal object in the container body is immersed in the cleaning liquid. And a container body moving step for moving the container body to a position where at least the inflow part of the container is higher than the liquid level of the cleaning liquid in the cleaning tank.   The metal object cleaning method according to claim 10, further comprising a cooling step of directly or indirectly cooling the cleaning liquid in the container body after the container body moving step.   The method for cleaning a metal object according to claim 11, wherein in the cooling step, the cooling liquid is supplied into the container body from a cooling liquid storage section storing a cooling liquid having a temperature lower than that of the cleaning liquid heated in the cleaning tank and the same quality as the cleaning liquid. .   In the cooling process, the receiving liquid disposed above the level of the cleaning liquid in the cleaning tank and below the container body receives and cools the cleaning liquid discharged as an excess from the container body as the cooling liquid is supplied. The method for cleaning a metal object according to claim 12, wherein the metal object is guided to the liquid storage part.

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