JP2015085216A - Steam washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steam washing device capable of washing an object to be washed in-line with a facility and quickly and surely washing the object to be washed.SOLUTION: Steam injection means of a steam washing device includes: a slender cylindrical steam nozzle pipe having a nozzle port opened and formed on a side surface; and a warm air pipe having a jetting port surrounding an outer periphery of the steam nozzle pipe and exposing the whole of the nozzle port, which is opened and formed on a side surface. In the steam nozzle pipe, the nozzle port is made a slit nozzle port opened and formed in a slit shape in the longitudinal direction, steam introduction pipes are connected to both ends, and steam is injected in a curtain shape from the slit nozzle port. The steam injection means directs the longitudinal direction in a direction intersecting an object to be washed feed direction in carrier means, directs the jetting port to the carrier means side, injects warm air in the warm air pipe to the outer circumference of the curtain-shaped steam together with the curtain-shaped steam from the slit nozzle port of the steam nozzle pipe from the jetting port, and makes the object to be washed disposed in the carrier means pass through the warm air.

Description

  The present invention is, for example, a pressed product, a wire processed product, a processed product before plating treatment, a molded product, etc., processed by mechanical equipment, and a processed product itself or a processed product with oil or dirt attached thereto. The present invention relates to a cleaning apparatus for cleaning an object to be cleaned.

  2. Description of the Related Art Conventionally, as a cleaning device that performs degreasing cleaning of a processed product, a method of immersing a processed product on which oil or dirt is attached or a strip formed with the processed product in a cleaning liquid has been widely used. For example, a processed product that has been pressed by a press machine and is contaminated with oil such as lubricating oil or dirt such as cutting powder is transferred to a cleaning device that is separated from the press machine, and the processed product is placed in a cleaning basket in the cleaning device. Immerse it in the cleaning solution stored in and wash away oil and dirt. And the operation | work of transferring the wash | cleaned processed goods to the following processes, such as plating, is performed.

JP-A-7-126879 Japanese Patent Laid-Open No. 11-47705

  In the above-described cleaning apparatus, a large amount of processed products to be cleaned are placed in a cleaning basket and immersed in a cleaning solution for cleaning, and therefore, a cleaning operation is performed independently from equipment such as a press machine and a plating apparatus. Therefore, it takes a lot of time for cleaning, and it has been difficult to increase the production efficiency until a processed product that has been subjected to press working or the like is used as a final product. Further, at the time of cleaning, a large amount of processed products in the cleaning basket are overlapped with each other, and it becomes difficult for the cleaning liquid to uniformly flow around the entire surface of the processed product, resulting in insufficient cleaning.

  The present invention has been made in view of the above circumstances, and can clean an object to be cleaned, which is a processed product, in-line with the equipment, and quickly clean the object to be cleaned without causing insufficient cleaning. It is another object of the present invention to provide a steam cleaning device that can be reliably performed.

The steam cleaning apparatus according to the present invention is:
A cleaning device for cleaning in-line with the equipment to be cleaned, such as a processed product to which oil or dirt is attached, or a band material forming the processed product,
Steam that is installed adjacent to the equipment and in which the object to be cleaned sent out from the equipment or the object to be cleaned sent to the equipment is disposed, and the object to be cleaned installed in the transport means and disposed in the transportation means Steam spraying means for spraying and steam cleaning,
The steam spraying means has an elongated cylindrical steam nozzle tube that forms a nozzle port for spraying steam on the side surface, and a jet port that surrounds the outer periphery of the steam nozzle tube and exposes the entire nozzle port of the steam nozzle tube. A hot air tube that forms an opening in
The steam nozzle tube is a slit nozzle port in which the nozzle port is formed in a slit shape along the longitudinal direction, and a steam introduction tube is connected to both ends, and steam is sprayed from the slit nozzle port in a curtain shape.
The hot air pipe is configured to connect the hot air introduction pipe and inject the hot air from the jet outlet,
The steam injection means has a longitudinal direction oriented in a direction intersecting with the direction of the object to be cleaned in the conveyance means, and the jet outlet is arranged toward the conveyance means, and a slit nozzle of a steam nozzle pipe is provided from the jet outlet. Along with the curtain-like steam ejected from the mouth, the warm air in the warm-air pipe is jetted around the outer circumference of the curtain-like steam, and the object to be cleaned placed in the conveying means is passed therethrough.

  With the above configuration, steam, which is superheated steam, is sprayed in a curtain shape, and steam is sprayed vigorously over the entire surface of the object to be cleaned by passing the object to be cleaned with oil or dirt on the steam curtain. . Since steam is introduced into both ends of the steam nozzle pipe, steam is injected from the center of the slit nozzle opening away from both ends without weakening. Thereby, steam is sprayed uniformly over the entire length of the slit nozzle port, and a durable steam curtain is formed. Therefore, oil or the like adhering to the object to be cleaned is quickly and reliably removed by spraying the curtain-like steam. Moreover, since the temperature drop of the steam is suppressed by spraying warm air around the curtain-like steam, it is possible to prevent the steam from condensing and water droplets from adhering to the object to be cleaned. it can. Therefore, the drying process can be omitted for the object to be cleaned after cleaning.

It is desirable that the steam injection means is further configured to apply a heating body to the steam nozzle pipe or the hot air pipe so as to apply heat to the atmosphere around the jet outlet.
As a result, it is possible to prevent a drop in the temperature of the curtain-like steam sprayed from the jet outlet, so that it is possible to more quickly and more reliably remove the oil content of the object to be cleaned. Condensation can be reliably prevented.

It is desirable that the steam injection means is disposed above and below the transport means.
Thereby, curtain-like steam can be sprayed from the upper and lower steam spraying means, respectively, and oil and the like adhering to the front and back surfaces of the object to be cleaned can be quickly and reliably removed.

It is desirable that a suction means for sucking oil and dirt of the object to be cleaned is further provided at a position facing the steam injection means and straddling the transport means.
Thereby, it is possible to prevent the oil and dirt of the object to be cleaned removed by the curtain steam from being scattered around.

The steam nozzle pipe has a cylindrical outer pipe that forms the slit nozzle opening, and a cylindrical inner pipe that is inserted with a space in the outer pipe and connects the steam introduction pipe to both ends. It is desirable that an outlet for allowing the steam to flow out into the outer pipe is formed on the side surface of the inner pipe at a position that does not overlap with the slit nozzle opening position.
As a result, the steam flowing out from the outlet of the inner pipe is filled in the space between the outer pipe and the inner pipe, thereby increasing the pressure and equalizing the pressure in the longitudinal direction. Therefore, steam is uniformly sprayed from the slit nozzle port formed in the outer tube over the entire length. Therefore, a durable steam curtain can be formed satisfactorily, and oil and the like adhering to the object to be cleaned can be quickly and reliably removed.

In addition, the steam cleaning apparatus according to the present invention,
A cleaning device for cleaning in-line with the equipment to be cleaned, such as a processed product to which oil or dirt is attached, or a band material forming the processed product,
It is installed adjacent to the equipment, and comprises steam injection means for spraying steam on the object to be cleaned sent out from the equipment or the object to be cleaned sent to the equipment to perform steam cleaning,
The steam injection means has a steam injection body configured to inject steam into the object to be cleaned that passes through the inner peripheral wall portion as a double tube structure that forms a cylindrical outer peripheral wall portion and an inner peripheral wall portion,
In the steam sprayer, the gap between the outer peripheral wall portion and the inner peripheral wall portion at both ends is closed, and a steam introduction pipe for introducing steam into the space between the outer peripheral wall portion and the inner peripheral wall portion is connected to the outer peripheral wall portion. An annular slit nozzle opening is formed in the inner peripheral wall portion to form a slit over the entire circumference in the circumferential direction so as to spray steam, and the steam introduced into the space in the outer peripheral wall portion is formed into an annular slit nozzle in the inner peripheral wall portion. It is configured such that the object to be cleaned is injected into a circular shape from the mouth and passed through the inner peripheral wall portion.

  With the above configuration, steam, which is superheated steam, is sprayed in a circular shape, and steam is sprayed vigorously across the entire surface of the object to be cleaned by passing the object to be cleaned with oil or dirt attached to the circular steam. It is done. The steam introduced from the steam introduction pipe is filled in the space between the outer peripheral wall portion and the inner peripheral wall portion, so that the pressure is increased and the pressure is equalized over the entire circumference in the circumferential direction of the space. Therefore, steam is uniformly injected over the entire circumference from the annular slit nozzle port formed in the inner peripheral wall portion. Therefore, a durable circular steam can be formed satisfactorily, and oil or the like adhering to the object to be cleaned passing through the steam can be quickly and reliably removed.

The annular slit nozzle port is preferably formed in a tapered cross section so that the spray direction of the steam is sprayed with an inclination toward one end of the inner peripheral wall portion.
As a result, since the steam jetted in a circular shape from the annular slit nozzle port flows in one direction toward one end of the inner peripheral wall, turbulence due to the reflected flow of steam is suppressed near the annular slit nozzle port and rectified. Therefore, it is possible to satisfactorily form a circular steam that is more sustainable.

The steam injection means is further unitized by connecting a hot air spray body in the axial direction of the steam spray body,
The hot air spray body has a double-pipe structure that forms a cylindrical outer peripheral wall portion and an inner peripheral wall portion, and is configured such that the object to be cleaned passes through the inner peripheral wall portion, and the outer peripheral wall portion and the inner peripheral wall portion at both ends. The hot air introduction pipe for introducing warm air into the space between the outer peripheral wall portion and the inner peripheral wall portion is connected to the outer peripheral wall portion, and the inner peripheral wall portion extends over the entire circumference in the circumferential direction. Steam is formed by opening an annular hot air injection port that opens and injects hot air, and injects hot air introduced into the space in the outer peripheral wall portion from the annular hot air injection port in the inner peripheral wall portion and injects from the steam injection body It is desirable to configure so as to prevent a decrease in temperature.
Thereby, since the fall of the atmospheric temperature in the inner peripheral wall part in the steam jetting body is suppressed by the hot air jetted from the hot air jetting body, the temperature drop of the circular steam jetted from the annular slit nozzle port is suppressed. . Therefore, it is possible to prevent the steam from condensing and water droplets from adhering to the object to be cleaned, and the step of drying the object to be cleaned after cleaning can be omitted.

It is desirable that the steam injection means is further provided with a cylindrical suction body that sucks oil and dirt of the object to be cleaned in the axial direction of the steam spray body.
Thereby, it is possible to prevent the oil and dirt of the object to be cleaned removed by the circular steam from being scattered from the end of the inner peripheral wall portion to the outside.

  According to the present invention, the object to be cleaned can be quickly and reliably cleaned by spraying steam into a curtain shape or a circular shape and passing the object to which the oil or dirt is attached to the steam. Since subsequent drying can also be omitted, for example, degreasing and cleaning of an object to be cleaned can be favorably performed in-line such as a downstream part of a press machine or an upstream part of a plating apparatus. In addition, since the object to be cleaned is cleaned by steam, there is no concern about the environmental impact as in the case of using a solvent.

It is a schematic diagram which shows a mode that the steam cleaning apparatus of Embodiment 1 was arrange | positioned in-line with an installation. It is a schematic diagram which shows the structure of the steam cleaning apparatus of Embodiment 1. It is a front view which shows the steam injection mechanism in the steam cleaning apparatus of Embodiment 1. It is a cross-sectional schematic diagram which shows the internal structure of the steam injection mechanism in the steam cleaning apparatus of Embodiment 1. It is a schematic diagram which shows a mode that the steam cleaning apparatus of Embodiment 2 was arrange | positioned with an installation in-line. It is a side view which shows the steam injection body in the steam cleaning apparatus of Embodiment 2. It is a perspective view which shows the steam injection mechanism which comprises the steam cleaning apparatus of Embodiment 2. It is a cross-sectional schematic diagram which shows the internal structure of the steam injection mechanism which comprises the steam cleaning apparatus of Embodiment 2.

Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
As shown in FIG. 1, the steam cleaning apparatus 1 according to the embodiment is installed adjacent to a metal press machine (equipment) M, and is made of metal such as terminals and terminals pressed by the metal press machine M. This is a device for degreasing and cleaning by spraying steam (superheated steam) when the product (object to be cleaned) W is pressed. The steam cleaning device 1 is installed at a downstream position of the metal press machine M, and is installed on the roller conveyor (conveying means) 2 into which the workpiece W is fed from the metal press machine M and the roller conveyor 2 and is pressurized. A steam spraying mechanism (steam spraying means) 3 for spraying steam onto the workpiece W fed to the roller conveyor 2 and performing steam cleaning (degreasing cleaning) is provided.

  The roller conveyor 2 is arranged in two upper and lower stages, and the workpiece W is fed between the upper roller conveyor 21 and the lower roller conveyor 22. In the lower roller conveyor 22, a part or all of the rollers are rotationally driven so that the processed product W is conveyed downstream. The roller conveyor 2 may be installed in one stage. Moreover, as a conveyance means, not only the roller conveyor 2 but various means, such as an actuator and a robot, can be used.

One steam injection mechanism 3 is arranged at a position above and below the roller conveyor 2. However, one steam injection mechanism 3 may be set up and down at the same position of the roller conveyor 2. Moreover, the steam injection mechanism 3 may be set to either the upper or lower side.
The steam injection mechanism 3 is configured to spray steam, which is superheated steam, in a curtain shape, and to pass the workpiece W fed to the roller conveyor 2 through the steam curtain. The steam spraying mechanism 3 is arranged so that steam sprayed therefrom passes between the rollers constituting the roller conveyor 2. In addition, the roller 23a at the position where the steam injection mechanism 3 is disposed on the roller conveyor 2 is installed with a smaller roller diameter than the rollers 23 at other positions. Accordingly, the curtain-like steam sprayed from the steam spraying mechanism 3 is not blocked by the roller conveyor 2 and is reliably sprayed onto the workpiece W conveyed between the upper and lower roller conveyors 21 and 22. A suction device (suction means) 7 for sucking oil and dirt of the workpiece W removed by the steam of the steam spray mechanism 3 is provided at a position across the roller conveyor 2 so as to face the upper and lower steam spray mechanisms 3. Is installed.

  As described above, according to the present embodiment, steam that is superheated steam is sprayed in the form of a curtain by the steam injection mechanism 3, and the processed product W with oil or dirt attached thereto is passed through the steam curtain. Steam can be sprayed vigorously over the entire area. And since the steam injection mechanism 3 is arranged on the upper and lower sides of the roller conveyor 2, curtain-like steam is sprayed on the front and back surfaces of the processed product W, and oil and the like adhering to the front and back surfaces of the processed product W are quickly and reliably removed. can do. In addition, since the workpiece W is fed between the upper and lower roller conveyors 2, the workpiece W is prevented from being blown out of the roller conveyor 2 due to the spraying of steam. Further, even if the steam is sprayed from the lower side of the processed product W, the processed product W is pressed onto the upper roller conveyor 21, so that the curtain-shaped steam spray from the lower side is uniformly applied to the processed product W. It can be carried out.

Next, the configuration of the steam injection mechanism 3 will be described.
As shown in FIG. 2, the steam injection mechanism 3 includes an elongated cylindrical steam nozzle tube 5 that forms a nozzle port 51 for injecting steam on the side surface, and surrounds the outer periphery of the steam nozzle tube 5. A cylindrical hot-air pipe 6 is provided that has an opening 61 formed on the side surface of the nozzle 61 that exposes the entire nozzle port 51.

  The steam nozzle tube 5 is a slit nozzle port 51 in which the nozzle port 51 is formed in a slit shape along the longitudinal direction. The steam inlet tube 52 is connected to both ends, and the steam introduced from each steam inlet tube 52 is slit. It is set as the structure sprayed in the shape of a curtain from the nozzle opening 51. FIG. The steam introduction pipe 52 has one end connected to each of the two outlet ports of the three-way branch pipe 54 connected to the end of the steam main pipe 53 extended from a steam generator (not shown), and the other end of the steam nozzle pipe 5. Is connected to the end of the. As the slit nozzle port 51, the slit width is preferably set to a size having a ratio of 2 to 8 with respect to the slit length 100. For example, if the slit length is 100 mm, the slit width is set in the range of 2 to 8 mm. Thereby, it is possible to spray a curtain-like steam that is sustainable over the entire length of the slit nozzle port 51. Further, the steam spray pressure sprayed from the slit nozzle port 51 is set to, for example, 0.6 MPa or more in order to efficiently remove the oil and dirt of the workpiece W. In addition, this steam injection pressure can be set in the range of 0.6-0.8 MPa.

  The steam nozzle tube 5 includes a cylindrical outer tube 81 that forms the slit nozzle port 51, and a cylindrical inner tube 82 that is inserted with a space in the outer tube 81 and connects the steam introduction tube 52 to both ends. A flow that causes steam to flow into the outer tube 81 at a position that does not overlap the position of the slit nozzle port 51 on the side surface of the inner tube 82 (for example, a position of 180 degrees of the slit nozzle port 51). The outlet 83 is formed. As a result, the steam flowing out from the outlet 83 of the inner pipe 82 is filled in the space between the outer pipe 81 and the inner pipe 82, thereby increasing the pressure and equalizing the pressure in the longitudinal direction. Therefore, steam is uniformly sprayed from the slit nozzle port 51 formed in the outer tube 81 over the entire length. Therefore, a durable steam curtain can be formed satisfactorily, and oil and the like adhering to the processed product W can be quickly and reliably removed.

  The hot air pipe 6 has a configuration in which a hot air introduction pipe 62 is connected to an intermediate portion of the side surface and the hot air introduced from the hot air introduction pipe 62 is jetted from the jet outlet 61. The hot air pipe 6 incorporates a heating source (not shown) such as a ceramic heater, and a blower (not shown) is installed upstream of the hot air pipe 6. As the blower, various types such as a sirocco fan, a fan motor, and a cyclone can be used. By rotating the blower, air is drawn into the hot air pipe 6, and the air is heated by a built-in heating source and becomes hot air and is ejected from the jet outlet 61. The hot air jetted from the jet outlet 61 is formed in the hot air pipe 6 so that the jet outlet 61 is larger than the slit nozzle port 51 of the steam nozzle pipe 5 and exposes the entire slit nozzle port 51. Sprayed along the outer periphery of curtain steam sprayed from the steam nozzle tube 5.

  And the steam injection mechanism 3 arrange | positions the ejection port 61 perpendicularly | vertically toward the roller conveyor 2 side while orientating the longitudinal direction to the direction orthogonal to the workpiece W feeding direction in the roller conveyor 2, and from the ejection port 61, The hot air in the hot air pipe 6 is sprayed to the outer periphery of the curtain-like steam together with the pressurized curtain-like steam jetted from the slit nozzle port 51 of the steam nozzle pipe 5, and the processing disposed on the roller conveyor 2. The article W is passed. Thereby, the steam is sprayed vigorously over the entire area of the workpiece W by spraying the pressurized steam in the form of a curtain and passing the workpiece W having oil or dirt attached to the steam curtain. Since steam is introduced into the steam nozzle pipe 5 from both ends, the steam is sprayed from the central portion of the slit nozzle port 51 away from both ends without weakening. Thereby, steam is sprayed uniformly over the entire length of the slit nozzle opening 51, and a durable steam curtain is formed. Therefore, oil and dirt adhering to the workpiece W are quickly and reliably removed by spraying the curtain-like steam. Moreover, since the temperature drop of the steam is suppressed by spraying warm air around the curtain-like steam, it is possible to prevent the steam from condensing and water droplets from adhering to the workpiece W. it can. Therefore, the drying step can be omitted for the processed product W after the steam cleaning.

  Moreover, the heating body 4 is provided in the steam nozzle pipe 5, and it is comprised so that heat may be given to the atmosphere around the jet nozzle 61 (refer FIG. 4). As the heating element 4, for example, a heater such as a nichrome wire type or various heat conductors that dissipate heat from the steam nozzle tube 5 is used. The heating element 4 may be provided not on the steam nozzle tube 5 side but on the hot air tube 6 side. Since the heat radiation from the heating body 4 can prevent the temperature of the curtain steam sprayed from the jet outlet 61 from being lowered, the oil content of the processed product W can be removed more quickly and more reliably. Further, it is possible to reliably prevent the steam condensation on the processed product W.

(Embodiment 2)
As shown in FIG. 5, the steam cleaning apparatus 1 </ b> A of Embodiment 2 includes a steam injection mechanism 3 </ b> A formed in a cylindrical shape, and the steam injection mechanism 3 </ b> A is installed at a downstream position of the metal press machine M. The metal press machine M is configured to feed a strip (object to be cleaned) W1 formed by pressing a workpiece such as a terminal with a die, and wind the strip W1 around a take-up reel 11 at a downstream position. Has been. The steam injection mechanism 3A is installed between the metal press machine M and the take-up reel 11, and the band material W1 fed out from the metal press machine M is inserted from one end of the cylinder, passed through the inside of the cylinder, and passed through the other. It is comprised so that it may send out from a cylindrical edge part.

  As shown in FIG. 6, in the steam injection mechanism 3A, steam (superheated steam) is injected in a circular shape inside the cylinder. Therefore, by continuously transferring the strip material W1 fed from the metal press machine M into the cylinder of the steam injection mechanism 3A, circular steam is sprayed around the entire circumference of the strip material W1, and passes through the strip material W1. The formed product is continuously subjected to steam cleaning (degreasing cleaning).

  As shown in FIG. 7, the steam injection mechanism 3A has a steam injection body 5A, a warm air injection body 6A, and a suction body 7A all formed in a cylindrical shape, and the steam injection body 5A is arranged in the middle. The hot air spray body 6A and the suction body 7A are connected to both ends in the axial direction to form a unit.

  Referring also to FIG. 8, the steam spray body 5 </ b> A sprays steam in a circular shape inside the cylinder, and has a double tube structure that forms a cylindrical outer peripheral wall portion 581 and an inner peripheral wall portion 582. A ring-shaped lid member 583 is attached to both ends of the steam spray body 5A so that the gap between the outer peripheral wall portion 581 and the inner peripheral wall portion 582 is airtightly closed. A steam introduction pipe 52 that introduces steam into a space between the outer peripheral wall portion 581 and the inner peripheral wall portion 582 is connected to an axially intermediate position of the outer peripheral surface of the outer peripheral wall portion 581. An annular slit nozzle port 51A is formed in a slit shape at the axially intermediate position of the inner peripheral wall portion 582, and steam that is pressurized into the inner peripheral wall portion 582 by the annular slit nozzle port 51A is formed. It is injected into a circular shape.

  With the above configuration, the steam introduced from the steam introduction pipe 52 is increased in pressure by being filled in the space between the outer peripheral wall portion 581 and the inner peripheral wall portion 582 and extends over the entire circumferential area of the space. The pressure is equalized. Therefore, steam is uniformly ejected from the annular slit nozzle port 51A over the entire circumference. Further, the slit width of the annular slit nozzle port 51A and the steam injection pressure injected from the annular slit nozzle port 51A are set in the same manner as the slit nozzle port 51 of the steam nozzle pipe 5 in the first embodiment. Therefore, it is possible to spray a circular steam having a sustained shape over the entire circumference of the annular slit nozzle port 51A.

  The cross section of the annular slit nozzle port 51A may be a cross section that goes straight in the radial direction, but is formed in a tapered cross section 500 such that the steam injection direction is inclined and injected toward one end of the inner peripheral wall portion 582. In the example of FIG. 8, the steam injection direction is a tapered cross section 500 that is injected toward the downstream side in the transport direction of the strip material W1. Therefore, in the vicinity of the annular slit nozzle port 51A, the turbulent flow due to the reflected flow or the like of the injected steam is suppressed and rectified, so that a more durable circular steam is formed.

  The hot air jet body 6A is connected to the upstream end of the steam jet body 5A in the band material transfer direction, and jets hot air in a circular shape inside the cylinder. The hot air jet body 6A has substantially the same configuration as the steam jet body 5A, but in the hot air jet body 6A, a hot air introducing pipe 62 is connected instead of the steam introducing pipe 52, and the inner peripheral wall 582 is connected to the inner peripheral wall portion 582. Instead of the annular slit nozzle port 51A, an annular hot air injection port 61A for injecting hot air is formed. The opening width of the annular hot air injection port 61A is the same as or wider than the slit width of the annular slit nozzle port 51A. The cross section of the annular hot air injection port 61A has a cross sectional shape in which the hot air injection direction is straight in the radial direction. As mentioned above, since the fall of the atmospheric temperature in the inner peripheral wall part 582 in the steam jet body 5A is suppressed by the hot air jetted from the hot air jet body 6A, the temperature drop of the circular steam jetted from the annular slit nozzle is reduced. It is suppressed. Therefore, it is possible to prevent the steam from condensing and water droplets from adhering to the surface of the strip material W1, and the step of drying the strip material W1 after the steam cleaning can be omitted.

  It should be noted that a heater 4 for applying heat to the atmosphere around the annular slit nozzle port 51A of the steam injector 5A is provided on both or one of the inner peripheral wall 582 of the steam injector 5A and the hot air injector 6A. It may be. As the heating body 4, a heater, a heat conductor, or the like can be used. Since the temperature drop of the circular steam sprayed from the annular slit nozzle port 51A can be prevented, the oil content etc. of the band material W1 can be removed more quickly and more reliably, and the steam in the band material W1 can be removed. Condensation can be reliably prevented.

  The suction body 7A is connected to the downstream end of the steam sprayer 5A in the band material transfer direction, and sucks oil and dirt of the band material W1 scattered in the cylinder. The suction body 7A also has substantially the same configuration as the steam spray body 5A, but in the suction body 7A, a suction pipe 72A is connected instead of the steam introduction pipe 52, and the inner peripheral wall 582 is connected to the annular slit nozzle port 51A. Instead, an annular suction port 71A for sucking oil and dirt of the band material W1 is formed. The opening width of the annular suction port 71A is formed wider than the annular slit nozzle port 51A and the annular hot air port, and the annular suction port 71A has a cross-sectional shape that goes straight in the radial direction. As described above, since the suction body 7A sucks oil and dirt of the strip W1 removed by the circular steam in the steam spray body 5A, the oil and dirt of the strip W1 are removed from the cylindrical end of the steam injection mechanism 3. Is prevented from being scattered to the outside.

  As described above, in the steam cleaning apparatus 1A of the second embodiment, the inner space of each inner peripheral wall portion 582 of the steam spray body 5A, the hot air spray body 6A, and the suction body 7A forms the inside of the cylinder of the steam spray mechanism 3A. Then, when the strip W1 fed from the metal press machine M is passed through the inside of the cylinder from one cylindrical end of the steam injection mechanism 3A to the other cylindrical end, the strip W1 is first a hot air spray body. When warm air is sprayed and warmed at the position of 6A and then transferred to the position of the steam sprayer 5A, circular steam passes through the entire circumference of the strip W1 while being vigorously sprayed. As a result, the strip W1 fed from the metal press machine M is heated by spraying warm air, so that oil and dirt adhering to the surface rise, and then the surface of the strip W1 is sprayed by circular steam. Oil and dirt are removed quickly and reliably. The oil and dirt removed here flow toward the downstream suction body 7A by the suction action of the suction body 7A acting on the entire area inside the cylinder, and are sucked from the annular suction port 71A of the suction body 7A.

In addition, the steam cleaning apparatus which concerns on this invention is not limited to the said embodiment, A various change is possible within the range of the summary of this invention.
For example, the steam cleaning device may be configured to steam-clean a processed product / band material (object to be cleaned) before being placed in the upstream position of the plating device and fed into the plating tank.
Further, the equipment for installing the steam cleaning device adjacent is not limited to a metal press machine or a plating device, and can be applied to various equipments that require removal of oil and dirt adhered to the object to be cleaned. .
The object to be cleaned is not only a press-processed product, but also a processed product or processed product that has been processed with mechanical equipment such as wire processed product, processed product before plating treatment, molded product, etc. Band material is included.

1,1A Steam cleaning device 2 Roller conveyor (conveying means)
3, 3A Steam injection mechanism 4 Heating body 5 Steam nozzle pipe 5A Steam injection body 6 Hot air pipe 6A Hot air injection body 7 Aspirator 7A Suction body 11 Take-up reel 21 Upper roller conveyor 22 Lower roller conveyor 51 Slit nozzle port 51A Annular Slit nozzle port 52, 52A Steam inlet tube 61 Outlet 61A Annular warm air outlet 62 Hot air inlet tube 62A Hot air inlet tube 71A Annular suction port 72A Suction tube 81 Outer tube 82 Inner tube 83 Outlet port 500 Tapered cross section 581 Wall part 582 Inner peripheral wall part 583 Lid member M Metal press machine (equipment)
W Processed product (object to be cleaned)
W1 Band material (object to be cleaned)

The steam cleaning apparatus according to the present invention is:
The object to be cleaned, such as oil and dirt, etc., to form a machining article or workpiece attached strip a cleaning device for washing,
A conveying means for the object to be cleaned is placed, is installed in the transport means, and a steam injection means for steam cleaning sprayed steam against the cleaning object arranged in the transport means,
The steam spraying means includes an elongated cylindrical steam nozzle tube that forms a nozzle port for spraying steam on the side surface, and a jet port that surrounds the outer periphery of the steam nozzle tube and exposes the entire nozzle port of the steam nozzle tube. A warm air pipe that forms an opening on the side surface,
The steam nozzle tube is configured such that the nozzle port is a slit nozzle port formed in a slit shape along the longitudinal direction, and a steam introduction tube is connected to both ends so that steam is sprayed from the slit nozzle port in a curtain shape. ,
The warm air pipe is configured to inject warm air from the jet outlet by connecting a warm air introduction pipe,
The steam injection means has a longitudinal direction oriented in a direction intersecting with the direction of the object to be cleaned in the conveyance means, and the jet outlet is arranged toward the conveyance means, and a slit nozzle of a steam nozzle pipe is provided from the jet outlet. Along with the curtain-like steam ejected from the mouth, the warm air in the warm-air pipe is jetted around the outer circumference of the curtain-like steam, and the object to be cleaned placed in the conveying means is passed therethrough.

The above configuration, by injecting scan team like a curtain, by passing the object to be cleaned was adhered oil and dirt on the steam curtain is sprayed often steam momentum over the entire surface of the object to be cleaned. Since steam is introduced into both ends of the steam nozzle pipe, steam is injected from the center of the slit nozzle opening away from both ends without weakening. Thereby, steam is sprayed uniformly over the entire length of the slit nozzle port, and a durable steam curtain is formed. Therefore, oil or the like adhering to the object to be cleaned is quickly and reliably removed by spraying the curtain-like steam. Moreover, since the temperature drop of the steam is suppressed by spraying warm air around the curtain-like steam, it is possible to prevent the steam from condensing and water droplets from adhering to the object to be cleaned. it can. Therefore, the drying process can be omitted for the object to be cleaned after cleaning.

In addition, the steam cleaning apparatus according to the present invention,
The object to be cleaned, such as oil and dirt, etc., to form a machining article or workpiece attached strip a cleaning device for washing,
Comprising a steam injection means for steam cleaning sprayed steam to said object to be cleaned,
The steam injection means has a steam injection body configured to inject steam into the object to be cleaned that passes through the inner peripheral wall portion as a double tube structure that forms a cylindrical outer peripheral wall portion and an inner peripheral wall portion,
In the steam spray body, the gap between the outer peripheral wall portion and the inner peripheral wall portion at both ends is closed, and a steam introduction pipe for introducing steam into the space between the outer peripheral wall portion and the inner peripheral wall portion is formed in the outer peripheral wall portion. An annular slit nozzle opening is formed in the inner peripheral wall portion that opens in a slit shape over the entire circumference in the circumferential direction to inject steam, and the steam introduced into the space in the outer peripheral wall portion is formed into an annular slit in the inner peripheral wall portion. It is configured such that the object to be cleaned is sprayed in a circular shape from the nozzle opening and passed through the inner peripheral wall portion thereof.

The above configuration, by injecting scan team circular, by passing the object to be cleaned for oil and dirt is attached to the circular steam, steam over the front and back whole area of the object to be cleaned is sprayed vigorously. The steam introduced from the steam introduction pipe is filled in the space between the outer peripheral wall portion and the inner peripheral wall portion, so that the pressure is increased and the pressure is equalized over the entire circumference in the circumferential direction of the space. Therefore, steam is uniformly injected over the entire circumference from the annular slit nozzle port formed in the inner peripheral wall portion. Therefore, a durable circular steam can be formed satisfactorily, and oil or the like adhering to the object to be cleaned passing through the steam can be quickly and reliably removed.

The steam injection means is further unitized by connecting a hot air spray body in the axial direction of the steam spray body,
The hot air spray body has a double-pipe structure that forms a cylindrical outer peripheral wall portion and an inner peripheral wall portion, and is configured so that the object to be cleaned passes through the inner peripheral wall portion. A gap between the outer wall and the inner wall is closed, a hot air introduction pipe for introducing hot air into the space between the outer wall and the inner wall is connected to the outer wall, and the inner wall has a circumferential circumference. An annular hot air injection port that opens and injects warm air is formed in an opening, and the hot air introduced into the space in the outer peripheral wall portion is injected from the annular hot air injection port in the inner peripheral wall portion and injected from the steam injector. It is desirable to configure so as to prevent a drop in steam temperature.
Thereby, since the fall of the atmospheric temperature in the inner peripheral wall part in the steam jetting body is suppressed by the hot air jetted from the hot air jetting body, the temperature drop of the circular steam jetted from the annular slit nozzle port is suppressed. . Therefore, it is possible to prevent the steam from condensing and water droplets from adhering to the object to be cleaned, and the step of drying the object to be cleaned after cleaning can be omitted.

Claims (9)

A cleaning device for cleaning in-line with the equipment to be cleaned, such as a processed product to which oil or dirt is attached, or a band material forming the processed product,
Steam that is installed adjacent to the equipment and in which the object to be cleaned sent out from the equipment or the object to be cleaned sent to the equipment is disposed, and the object to be cleaned installed in the transport means and disposed in the transportation means Steam spraying means for spraying and steam cleaning,
The steam spraying means has an elongated cylindrical steam nozzle tube that forms a nozzle port for spraying steam on the side surface, and a jet port that surrounds the outer periphery of the steam nozzle tube and exposes the entire nozzle port of the steam nozzle tube. A hot air tube that forms an opening in
The steam nozzle tube is a slit nozzle port in which the nozzle port is formed in a slit shape along the longitudinal direction, and a steam introduction tube is connected to both ends, and steam is sprayed from the slit nozzle port in a curtain shape.
The hot air pipe is configured to connect the hot air introduction pipe and inject the hot air from the jet outlet,
The steam injection means has a longitudinal direction oriented in a direction intersecting with the direction of the object to be cleaned in the conveyance means, and the jet outlet is arranged toward the conveyance means, and a slit nozzle of a steam nozzle pipe is provided from the jet outlet. A steam cleaning apparatus configured to inject hot air in a hot air pipe to the outer periphery of the curtain steam together with curtain steam sprayed from a mouth, and to pass an object to be cleaned disposed in the conveying means. The steam cleaning apparatus according to claim 1,
The steam cleaning device is a steam cleaning device configured such that a heating body is further provided in a steam nozzle tube or a hot air tube to apply heat to the atmosphere around the outlet. In the steam cleaning apparatus according to claim 1 or 2,
The steam spraying device is a steam cleaning device disposed above and below the transporting device. In the steam cleaning apparatus according to any one of claims 1 to 3,
A steam cleaning apparatus, further comprising suction means for sucking oil or dirt of an object to be cleaned at a position across the transport means so as to face the steam injection means. In the steam cleaning apparatus of any one of Claims 1-4,
The steam nozzle pipe has a cylindrical outer pipe that forms the slit nozzle opening, and a cylindrical inner pipe that is inserted with a space in the outer pipe and connects the steam introduction pipe to both ends. A steam cleaning apparatus, wherein an outlet for allowing steam to flow into the outer pipe is formed on a side surface of the inner pipe at a position that does not overlap with the slit nozzle opening position. A cleaning device for cleaning in-line with the equipment to be cleaned, such as a processed product to which oil or dirt is attached, or a band material forming the processed product,
It is installed adjacent to the equipment, and comprises steam injection means for spraying steam on the object to be cleaned sent out from the equipment or the object to be cleaned sent to the equipment to perform steam cleaning,
The steam injection means has a steam injection body configured to inject steam into the object to be cleaned that passes through the inner peripheral wall portion as a double tube structure that forms a cylindrical outer peripheral wall portion and an inner peripheral wall portion,
In the steam sprayer, the gap between the outer peripheral wall portion and the inner peripheral wall portion at both ends is closed, and a steam introduction pipe for introducing steam into the space between the outer peripheral wall portion and the inner peripheral wall portion is connected to the outer peripheral wall portion. An annular slit nozzle opening is formed in the inner peripheral wall portion to form a slit over the entire circumference in the circumferential direction so as to spray steam, and the steam introduced into the space in the outer peripheral wall portion is formed into an annular slit nozzle in the inner peripheral wall portion. A steam cleaning apparatus having a configuration in which an object to be cleaned is injected into a circular shape from a mouth and passed through an inner peripheral wall portion thereof. The steam cleaning apparatus according to claim 6,
The said annular slit nozzle opening is a steam washing | cleaning apparatus currently formed in the taper-shaped cross section so that the injection direction of a steam may inject and inject to the one end side of an inner peripheral wall part. In the steam cleaning apparatus according to claim 6 or 7,
The steam injection means is further unitized by connecting a hot air spray body in the axial direction of the steam spray body,
The hot air spray body has a double-pipe structure that forms a cylindrical outer peripheral wall portion and an inner peripheral wall portion, and is configured such that the object to be cleaned passes through the inner peripheral wall portion, and the outer peripheral wall portion and the inner peripheral wall portion at both ends. The hot air introduction pipe for introducing warm air into the space between the outer peripheral wall portion and the inner peripheral wall portion is connected to the outer peripheral wall portion, and the inner peripheral wall portion extends over the entire circumference in the circumferential direction. Steam is formed by opening an annular hot air injection port that opens and injects hot air, and injects hot air introduced into the space in the outer peripheral wall portion from the annular hot air injection port in the inner peripheral wall portion and injects from the steam injection body Steam cleaning device configured to prevent temperature drop. In the steam cleaning apparatus according to any one of claims 6 to 8,
The steam cleaning device is further provided with a cylindrical suction body that sucks oil and dirt of an object to be cleaned in the axial direction of the steam spray body.

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