JP2007144327A - Cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning device whose installation area as an entire cleaning device can be reduced and has little part left behind from spraying of a cleaning medium to treating objects, and to perform a cleaning treatment with which the installation area is effectively used and appropriate cleaning is performed with little uncleaned part left. <P>SOLUTION: In this cleaning device, a carrying-in truck 5 and a carrying-out truck 6 movable in a reciprocative manner on guide rails 4 respectively are disposed on both sides across a treatment chamber 1, and an elevating and supporting means 10 elevating and supporting the treating object 8 on the truck is provided in the treatment chamber 1. The treatment object 8 is carried into the treatment chamber 1 by the carrying-in truck 5 and delivered to the elevating and supporting means 10, the carrying-in truck 5 is retreated from the treatment chamber 1 for performing the given cleaning treatment; and the cleaned treatment object 8 is delivered to the carrying-out truck 6 from the elevating and supporting means 10 and carried out of the treatment chamber 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cleaning device suitable for cleaning a large workpiece such as a bogie of a railway vehicle.

As a conventional technique related to this type of cleaning device, a workpiece is mounted directly on a pair of belt conveyors, mounted on a mounting table, or mounted on both sides of a pair of chain conveyors. There is known a device that is mounted on top and configured to perform a cleaning process while passing through a processing chamber (Patent Document 1). However, in this prior art, since the belt conveyor and the chain conveyor are disposed through the processing chamber, the cleaning medium is easily sprayed on the conveying means during cleaning, and this causes damage of the conveying operation. There was a problem that it was easy to become. Further, when cleaning the lower surface of the object to be processed, there is also a problem that the conveying means and the mounting table obstruct the spraying and the cleaning leak occurs. Furthermore, when using a mounting table suitable for handling a large object to be processed, a return path for returning the empty mounting table after carrying out the cleaned object to the loading side and reusing it. This requires a large amount of equipment and space, and the installation area increases accordingly.
Japanese Patent No. 2965919

  In view of the above-described conventional technical situation, the present invention provides a cleaning device that can reduce the installation area of the entire device and has a portion that is the shadow of spraying a cleaning medium on an object to be processed, The purpose is to achieve an effective use of the installation surface and a more accurate cleaning process with less leakage.

  In the present invention, in order to solve the problem, in a cleaning apparatus that performs a cleaning process by a jet flow ejected from a nozzle in a processing chamber, a loading-side transport cart that can reciprocate on a transport path on both sides across the processing chamber, and In addition to disposing the unloading-side transfer carriage, lifting support means for lifting and supporting the object to be processed on the transfer carriage is provided in the processing chamber, and the object to be processed is carried into the processing chamber by the loading-side transfer carriage. Deliver to the lifting support means, carry out the desired cleaning process after leaving the loading-side transport cart from the processing chamber, and deliver the cleaned processed object from the lifting support means to the unloading-side transport cart The technical means of unloading from the processing chamber was adopted. That is, the conveyance means for the object to be processed is divided into a carry-in conveyance carriage and a carry-out conveyance carriage, eliminating the need to return the empty loading table after carrying out the clean processed object to the carry-in side, and lifting the lifting By carrying out the cleaning process in a state where the object to be processed is lifted by the support means, it has been improved so that more accurate cleaning process with less leakage can be performed. If a nozzle directed to the lower surface of the workpiece supported by the lifting support means is provided, it is effective in improving workability related to the cleaning process for the lower surface. Moreover, when the said jet flow contains scouring material, it can be comprised so that the used scouring material stored in the lower part of the said process chamber may be collect | recovered, and it may be reused after removal of a foreign material.

According to the present invention, the following effects can be obtained.
(1) In the present invention, when cleaning an object to be processed, the carry-in side carriage and the carry-out side carriage as the transfer means are outside the processing chamber, and the remaining in the processing chamber is mostly caused by the spraying of the cleaning medium. Since there is only a conveyance path such as a guide rail that does not become a problem, a conventional trouble in conveyance can be surely solved.
(2) Since the delivery-side transport cart is used to carry in the processed material and the carry-out transport cart is used to carry out the processed material, the empty Equipment for returning the transport means to the carry-in side becomes unnecessary, and the installation area can be reduced accordingly.
(3) Since the cleaning process is performed in a state where the object to be processed is lifted in the air by the lifting support means, there are few portions that are shaded by the spray of the cleaning medium, and a more accurate cleaning process with less cleaning leakage. Is possible.
(4) Since the polishing material contained in the jet flow is stored and recovered in the lower part of the processing chamber, the polishing material is almost recovered without being attached to or deposited on the transport carriage, and the consumption of the polishing material. The amount can be reduced.

  The present invention is suitable for a cleaning process for a large object to be processed having a large weight such as a bogie frame of a railway vehicle, but can be widely applied to a cleaning process for various other objects to be processed. As the cleaning process, a blast cleaning process using a jet flow containing an appropriate abrasive, a cleaning form using a cleaning medium made of a cleaning liquid to which an appropriate cleaning agent or chemical solution is added, or a water cleaning medium It can be applied to various cleaning processes such as the cleaning form used as Furthermore, it goes without saying that a rinsing and drying process may be performed in the same processing chamber after the intended cleaning process is completed. The jet flow from the cleaning nozzle may be a jet flow having a circular cross section or a flat jet flow. Moreover, the installation form of the nozzle for cleaning can be arbitrarily selected according to the specific size and shape of the object to be processed, the form of the cleaning process, and the like. For example, the spraying position may be configured to be attached to an XY axis support mechanism or the like so as to move the nozzle side vertically and horizontally, or to be processed through a lifting support means that supports the object to be processed. It is also possible to configure the spray position to move by moving the side. Further, as the carry-in transport cart and the carry-out transport cart, a self-propelled cart driven by a driving means such as an electric motor provided in the cart itself is suitable, but depending on the case, the driving force from other parts It is also possible to use a passive or manual cart that travels by

  FIG. 1 is a schematic front view showing the main part of the entire cleaning apparatus according to an embodiment of the present invention, and FIG. 2 is a schematic plan view thereof. In the figure, reference numeral 1 denotes a processing chamber, and a cleaning process is carried out by spraying a jet flow ejected from a nozzle installed in the processing chamber 1 onto an object to be processed. In the processing chamber 1, an entrance door 2 on the carry-in side and an exit door 3 on the carry-out side are installed so as to be openable and closable. In addition, a guide rail 4 as a transport path is provided so as to penetrate the processing chamber 1, and the carry-in side transport cart 5 can be moved back and forth on both sides of the guide rail 4 with the processing chamber 1 interposed therebetween. And a carry-out side transport carriage 6 are disposed. In the case of the carry-in transport cart 5 in the present embodiment, a workpiece 8 such as a cart frame is mounted on a support portion 7 provided at the center thereof and transported from the entrance door 2 to a predetermined position in the processing chamber 1. It is configured. The workpiece 8 supported by the support portion 7 of the carry-in transport carriage 5 carried into a predetermined position in the processing chamber 1 is lifted supporting means 9 disposed on both sides as shown in FIG. , 10 are raised to an appropriate height. Thereafter, the carry-in transport carriage 5 returns to the original standby position on the guide rail 4 and the carry-in entrance door 2 is closed. At this time, the exit door 3 on the carry-out side is also closed, and the workpiece 8 is supported in the air at an appropriate height by the lifting support means 9 and 10, and the preparation for the cleaning process is completed. To do.

  When the preparation for the cleaning process is completed, in the present embodiment, an object to be processed is used by using the upper nozzle 11 that is movable in the vertical and horizontal directions and the lower nozzle 12 that is movable in the vertical and horizontal directions. 8 is cleaned from above and below. In this case, the adjustment relating to the spray distance between the workpiece 8 and the upper nozzle 11 or the lower nozzle 12 can be made by adjusting the lifting height by the lifting support means 9, 10. If it is configured to be movable up and down, finer adjustment is possible. That is, the adjustment relating to the spray distance between the workpiece 8 and the upper nozzle 11 or the lower nozzle 12 may be adjusted by the height by the lifting support means 9 or 10 as necessary, or the upper nozzle 11 or the lower nozzle 12 may be adjusted. The height adjustment of the nozzle 12 may be performed, or the height adjustment of both of them may be combined. Incidentally, the operation control related to the position and height of the upper nozzle 11 and the lower nozzle 12 and the injection angle or the operation control related to the lifting support means 9 and 10 is automatically controlled based on the outer shape of the workpiece 8 or the like. Although it is efficient to configure, it is also possible to manually. In the processing chamber 1, the guide rail 4 that is hardly damaged is present in the area where the jet flow from the nozzle is directly sprayed. Due to the absence of means, the problem of damage due to the spraying of the cleaning medium is greatly reduced. In addition, since the shadow portion of the surface of the workpiece 8 that makes it difficult to spray the cleaning medium is only a small portion supported by the lifting support means 9, 10, there is almost no problem. A cleaning process is possible. In addition, when the above cleaning process is complete | finished, the rinse process, the drying process, etc. will be performed in the process chamber 1 as it is as needed.

  When the desired work such as the cleaning process in the processing chamber 1 is completed, the exit door 3 on the unloading side is opened and the empty unloading-side transport cart 6 is processed on the guide rail 4 from the unloading direction. Move to a predetermined position in the chamber 1. Then, the lifting support means 9 and 10 are lowered, and the processed object 8 that has been supported by the support means 9 and 10 is delivered onto the support portion 13 of the carry-out side transport carriage 6. Thereafter, the workpiece 8 is unloaded from the processing chamber 1 by the unloading-side transport cart 6 and the outlet door 3 is closed, so that the next workpiece 8 can be processed. It will be repeated. And the to-be-processed to-be-processed object 8 mounted and carried out to the carrying-out side conveyance trolley 6 is conveyed by the appropriate target process after that. As shown in the figure, the carry-in side carriage 5 and the carry-out side carriage 6 in the present embodiment are each provided with driving means 14 and 15 and configured to be able to run on their own. In addition, a recovery unit 16 is formed in the lower part of the processing chamber 1 and is configured so as to recover the polishing material and peeling waste generated by the processing. The polishing material and the debris collected by the collection unit 16 flow into the cyclone 18 through the collection pipe 17 and are separated. Then, the reusable abrasive material is replenished to the abrasive supply unit 19 and supplied to the upper nozzle 11 and the lower nozzle 12 in the processing chamber 1 together with new abrasive material by the air from the blower 20. It will be reused as a cleaning medium. Unnecessary peeling debris, ultrafine polishing material, etc. are sucked into the dust collector 21 and discarded.

  FIG. 3 is a partially enlarged view of FIG. 1 showing the inside of the processing chamber 1 in an enlarged manner, and FIG. 4 is a sectional view taken along the line AA. As shown in FIG. 4, the lifting support means 9 and 10 disposed on both sides in the processing chamber 1 are guided in the vertical direction along the guide struts 22 and 23 and the guide struts 22 and 23, respectively. It is composed of box-like elevating slide members 24, 25 configured to be movable up and down, and support arms 26, 27 each comprising a pair of extendable and retractable members rotatably disposed on the elevating members 24, 25. Is done. FIG. 5 is an enlarged plan view of a main part showing an enlarged main part of the lifting support means 9, and FIG. 6 is an enlarged front view of the main part. In the following, the main part of one lifting support means 9 will be described. However, the other lifting support means 10 is basically different in configuration because the installation direction is just the opposite direction. Play.

  As shown in FIG. 5, a pair of support arms 26 a and 26 b are rotatably arranged on the elevating slide member 24 constituting one lifting support means 9 via support shafts 28 and 29. By rotating each of the hydraulic cylinders 30 and 31 separately at an appropriate angle, an appropriate portion of the workpiece 8 is supported together with the pair of support arms 27 of the other lifting support means 10 to appropriately increase the height. It is configured to be lifted up. Further, a latch plate 33 is provided on the back side of the elevating slide member 24 via a shaft portion 32, from the end of the vertical slit formed on the contact surface of the guide column 22 with the elevating slide member 24. The shaft portion 32 is inserted, and as shown in the figure, the latch plate 33 is slidably latched on the inner surface of the guide column 22 so that the elevating slide member 24 can be moved up and down along the guide column 22. is doing. Further, as shown in FIG. 6, a hydraulic cylinder 34 is disposed below the lifting slide member 24, and the supporting arms 26 a and 26 b can be lifted and lowered by the hydraulic cylinder 34 via the lifting slide member 24. It is configured as follows.

  As shown in FIGS. 3 and 4, the upper nozzle 11 and the lower nozzle 12 are supported by an XY axis support mechanism so as to be movable vertically and horizontally along two orthogonal axes. That is, the upper nozzle 11 is supported by an XY axis support mechanism including orthogonal guide means 35 and 36, and the lower nozzle 12 is supported by an XY axis support mechanism including orthogonal guide means 37 and 38, respectively. It is configured to be able to move to. Further, the upper nozzle 11 and the lower nozzle 12 are installed so as to be able to swing, and are configured so that the jetting direction of the cleaning medium can be changed. When cleaning, the position control is performed on the upper nozzle 11 and the lower nozzle 12 via the XY-axis support mechanisms based on the outer shape of the workpiece 8 or the injection angle. The desired cleaning process is performed while executing the above control.

It is the schematic front view which showed the principal part of the whole cleaning apparatus which concerns on the Example of this invention. It is the schematic plan view which showed the principal part of the whole cleaning apparatus concerning the Example. It is the elements on larger scale of FIG. 1 which expanded and showed the inside of a process chamber. It is AA sectional drawing in FIG. It is the principal part enlarged plan view which expanded and showed the principal part of the lifting support means. It is the principal part enlarged front view which expanded and showed the principal part of the same lifting support means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Processing chamber, 2 ... Entrance door, 3 ... Exit door, 4 ... Guide rail, 5 ... Carry-in side conveyance trolley, 6 ... Carry-out side conveyance trolley, 7 ... Support part, 8 ... Object to be processed, 9, 10 ... Lifting Support means, 11 ... upper nozzle, 12 ... lower nozzle, 13 ... support section, 14, 15 ... drive means, 16 ... collection section, 17 ... collection pipe, 18 ... cyclone, 19 ... quantitative supply section, 20 ... blower, 21 ... dust collectors, 22, 23 ... guide columns, 24, 25 ... elevating members, 26, 27 ... supporting arms, 28, 29 ... spindles, 30, 31 ... hydraulic cylinders, 32 ... shafts, 33 ... latch plates, 34 ... Hydraulic cylinder, 35-38 ... Guiding means

Claims (3)

  In a cleaning apparatus that performs a cleaning process by a jet flow ejected from a nozzle in a processing chamber, a loading-side transport cart and a transport-side transport cart that can reciprocate on the transport path on both sides of the processing chamber are disposed, Lifting support means for lifting and supporting the object to be processed on the transfer carriage is provided in the processing chamber, and the object to be processed is transferred into the processing chamber by the transfer-side transfer carriage and delivered to the lifting support means. The intended cleaning process is carried out after the cart is withdrawn from the processing chamber, and the cleaned object to be processed is transferred from the lifting support means to the unloading-side transport cart and carried out of the processing chamber. A cleaning device characterized by that.   The cleaning apparatus according to claim 1, further comprising a nozzle directed to a lower surface of the workpiece to be supported by the lifting support means. The cleaning apparatus according to claim 1, wherein the jet flow includes a scouring material, and the used scouring material stored in a lower portion of the processing chamber is collected and reused after removing foreign substances. .

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